[go: up one dir, main page]

WO2024126326A1 - Illuminable glazing - Google Patents

Illuminable glazing Download PDF

Info

Publication number
WO2024126326A1
WO2024126326A1 PCT/EP2023/085025 EP2023085025W WO2024126326A1 WO 2024126326 A1 WO2024126326 A1 WO 2024126326A1 EP 2023085025 W EP2023085025 W EP 2023085025W WO 2024126326 A1 WO2024126326 A1 WO 2024126326A1
Authority
WO
WIPO (PCT)
Prior art keywords
coating
light
pane
glazing
main surface
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2023/085025
Other languages
German (de)
French (fr)
Inventor
Siyamak MEMAR JAVID
Sebastian ARENDT
Yahya MOTEMANI SHARABIANI
Klaus Fischer
Florence JACQUES
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saint Gobain Glass France SAS
Compagnie de Saint Gobain SA
Original Assignee
Saint Gobain Glass France SAS
Compagnie de Saint Gobain SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Saint Gobain Glass France SAS, Compagnie de Saint Gobain SA filed Critical Saint Gobain Glass France SAS
Priority to EP23820943.1A priority Critical patent/EP4633947A1/en
Priority to CN202380085747.9A priority patent/CN120379835A/en
Publication of WO2024126326A1 publication Critical patent/WO2024126326A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/22—Surface treatment of glass, not in the form of fibres or filaments, by coating with other inorganic material
    • C03C17/23—Oxides
    • C03C17/25—Oxides by deposition from the liquid phase
    • C03C17/256—Coating containing TiO2
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
    • B32B17/10036—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • B32B17/10174—Coatings of a metallic or dielectric material on a constituent layer of glass or polymer
    • B32B17/10201—Dielectric coatings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • B32B17/10541—Functional features of the laminated safety glass or glazing comprising a light source or a light guide
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/22—Surface treatment of glass, not in the form of fibres or filaments, by coating with other inorganic material
    • C03C17/23—Oxides
    • C03C17/245—Oxides by deposition from the vapour phase
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/22—Surface treatment of glass, not in the form of fibres or filaments, by coating with other inorganic material
    • C03C17/23—Oxides
    • C03C17/245—Oxides by deposition from the vapour phase
    • C03C17/2456—Coating containing TiO2
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/22—Surface treatment of glass, not in the form of fibres or filaments, by coating with other inorganic material
    • C03C17/23—Oxides
    • C03C17/25—Oxides by deposition from the liquid phase
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
    • B32B17/10082—Properties of the bulk of a glass sheet
    • B32B17/10119—Properties of the bulk of a glass sheet having a composition deviating from the basic composition of soda-lime glass, e.g. borosilicate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • B32B17/10431—Specific parts for the modulation of light incorporated into the laminated safety glass or glazing
    • B32B17/1044—Invariable transmission
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • B32B17/10431—Specific parts for the modulation of light incorporated into the laminated safety glass or glazing
    • B32B17/10467—Variable transmission
    • B32B17/10495—Variable transmission optoelectronic, i.e. optical valve
    • B32B17/10504—Liquid crystal layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • B32B17/10431—Specific parts for the modulation of light incorporated into the laminated safety glass or glazing
    • B32B17/10467—Variable transmission
    • B32B17/10495—Variable transmission optoelectronic, i.e. optical valve
    • B32B17/10513—Electrochromic layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10614—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer comprising particles for purposes other than dyeing
    • B32B17/10633—Infrared radiation absorbing or reflecting agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10651—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer comprising colorants, e.g. dyes or pigments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10651—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer comprising colorants, e.g. dyes or pigments
    • B32B17/1066—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer comprising colorants, e.g. dyes or pigments imparting a tint in certain regions only, i.e. shade band
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10743—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing acrylate (co)polymers or salts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10752—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing polycarbonate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10761—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing vinyl acetal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/1077—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing polyurethane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10779—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing polyester
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10788—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing ethylene vinylacetate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/03—3 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/416—Reflective
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/418—Refractive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/732—Dimensional properties
    • B32B2307/737—Dimensions, e.g. volume or area
    • B32B2307/7375—Linear, e.g. length, distance or width
    • B32B2307/7376—Thickness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2323/00—Polyalkenes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2325/00—Polymers of vinyl-aromatic compounds, e.g. polystyrene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2327/00—Polyvinylhalogenides
    • B32B2327/06—PVC, i.e. polyvinylchloride
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2333/00—Polymers of unsaturated acids or derivatives thereof
    • B32B2333/04—Polymers of esters
    • B32B2333/12—Polymers of methacrylic acid esters, e.g. PMMA, i.e. polymethylmethacrylate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2367/00—Polyesters, e.g. PET, i.e. polyethylene terephthalate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2369/00—Polycarbonates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2377/00—Polyamides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2419/00—Buildings or parts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/08—Cars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/10—Trains
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/12—Ships
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2217/00—Coatings on glass
    • C03C2217/20—Materials for coating a single layer on glass
    • C03C2217/21—Oxides
    • C03C2217/212—TiO2
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2217/00—Coatings on glass
    • C03C2217/20—Materials for coating a single layer on glass
    • C03C2217/21—Oxides
    • C03C2217/213—SiO2
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2217/00—Coatings on glass
    • C03C2217/20—Materials for coating a single layer on glass
    • C03C2217/21—Oxides
    • C03C2217/214—Al2O3
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2217/00—Coatings on glass
    • C03C2217/20—Materials for coating a single layer on glass
    • C03C2217/21—Oxides
    • C03C2217/228—Other specific oxides
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2217/00—Coatings on glass
    • C03C2217/20—Materials for coating a single layer on glass
    • C03C2217/28—Other inorganic materials
    • C03C2217/281—Nitrides
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0016—Grooves, prisms, gratings, scattering particles or rough surfaces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0065—Manufacturing aspects; Material aspects
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0095—Light guides as housings, housing portions, shelves, doors, tiles, windows, or the like

Definitions

  • the invention relates to an illuminable or illuminated glazing, preferably as a single pane or composite pane and in particular a roof pane.
  • WO 2013/110885 A1 WO 2018/178591 A1 or WO 2019/105855 A1 it is known to insert light sources into recesses, for example in mechanically drilled holes, and thereby couple light into the glass pane.
  • the point-by-point coupling of light makes it difficult to achieve homogeneous illumination of the entire pane.
  • the edge of the hole is matt for technical reasons, which also reduces the efficiency of the light coupling.
  • the holes lead to a mechanical weakening of the glazing.
  • the light source can be arranged on one of the main surfaces of the glass pane and the light can be coupled into the glass pane via one of the main surfaces, which is known, for example, from WO 2022/096365 A1.
  • the object of the present invention is to provide an improved glazing which can be produced simply and inexpensively and which enables particularly efficient lighting of the glazing.
  • the glazing according to the invention comprises at least the following features: at least one first pane with a first main surface and a second main surface, a coating with a first main surface and a second main surface, wherein the coating with the first main surface is arranged on the second main surface of the first pane, at least one light source, wherein the light source is connected to the coating in such a way that light from the light source can be coupled into the coating, and at least one light coupling means for coupling light out of the coating via at least one of the main surfaces, wherein for at least one wavelength A of a light from the light source, a refractive index n2or coating is greater than a refractive index m of the first pane, and an extinction coefficient k2o of the coating is smaller than an extinction coefficient ki of the first pane.
  • the light source is connected to the coating according to the invention in such a way that light from the Light source can be coupled into the coating at an angle 0 greater than or equal to the angle 0 to tai of total reflection.
  • the light source is designed such that the light is essentially not coupled into the first pane or another (e.g. second) pane.
  • the light is not coupled into the coating via the first pane.
  • the present invention is based on the following finding of the inventors: Glass - be it mineral glass, such as soda-lime glass, or polymer glass - is often described as transparent. By utilizing total reflection, light coupled into a pane of glass can be retained in the glass with almost no reflection losses at the interfaces with other media (such as air). However, even with glass, there is generally a wavelength-dependent extinction and thus a loss of intensity that increases with the length of the path in the medium. This is particularly disadvantageous with tinted panes of glass or in arrangements in which the light source is far away from the location of the light output.
  • a coating is arranged on the first pane which a) has a higher refractive index and thus forms a planar optical waveguide and b) whose extinction coefficient is low so that less coupled-in light is lost along the propagation in the medium.
  • the light source (4) is suitable for emitting light of at least one wavelength A in the wavelength range of visible light (VIS), preferably in the range from 380 nm to 780 nm.
  • VIS visible light
  • the extinction coefficient k2o of the coating is smaller than the extinction coefficient ki of the first pane by a factor of at least 1.5, preferably at least 2, particularly preferably at least 5 and in particular at least 10.
  • the extinction coefficient k2o at a wavelength A of 550 nm is less than or equal to 1*10 -6 , preferably less than or equal to 1*10 -7 and particularly preferably less than or equal to 1*10 -8 .
  • the coating has a substantially constant thickness d2o.
  • the coating has a thickness d2o of at least the minimum wavelength A of the light from the light source.
  • the coating has a thickness d2o of 380 nm to 10 pm, preferably of 780 nm to 5 pm and in particular of 800 nm to 2 pm.
  • the coating is deposited on the second main surface of the first pane by a thin-film deposition process.
  • the coating according to the invention is deposited by methods known per se, preferably by cathode sputtering or magnetic field-assisted cathode sputtering.
  • cathode sputtering takes place in a protective gas atmosphere, for example of argon, or in a reactive gas atmosphere, for example by adding oxygen or nitrogen.
  • coatings according to the invention can also be applied by other methods known to those skilled in the art, for example by vapor deposition or chemical vapor deposition (CVD), by plasma-enhanced vapor deposition (PECVD) or by wet-chemical methods, for example sol-gel processes such as spray coating, dip coating, spin coating or casting.
  • sol-gel processes are understood to be the condensation of colloidally dissolved particles to form three-dimensional networks, whereby the size of the colloids can vary between 1 nm and several thousand nm.
  • spray coating a sol is atomized by supplying a certain amount of air and this is transported to the substrate in very small particles.
  • dip coating the substrate is dipped in a solution and then pulled out again at a constant speed.
  • Chemical vapor deposition (CVD) or plasma-enhanced vapor deposition (PECVD) processes are particularly preferred for producing silicon dioxide-containing coatings or coatings consisting of silicon dioxide, in which the coating is formed by a reaction of gases containing silicon, such as silane or tetraethylorthosilicate (TEOS, also tetraethoxysilane).
  • gases containing silicon such as silane or tetraethylorthosilicate (TEOS, also tetraethoxysilane).
  • the coating contains titanium oxide, aluminum oxide, silicon nitride, in particular SiA4, silicon zirconium nitride, silicon oxynitride and/or silicon dioxide, in particular SiO2, or consists thereof.
  • the refractive index n2or coating is at least 0.1, preferably at least 0.2 and in particular at least 0.2 to 1.5, greater than the refractive index m of the first pane.
  • the glazing according to the invention comprises at least one, preferably transparent, light coupling means, wherein the light source is connected to the first main surface of the coating via the light coupling means, so that light from the light source can be coupled into the coating.
  • transparent is understood to mean an object, in particular a light coupling means, a light coupling means and/or a transparent body, which has a transmission in the visible spectral range of greater than 20%, preferably greater than 50%, particularly preferably greater than 70%, in particular greater than 85%.
  • the light coupling means is suitable for deflecting a portion of the light arriving from the light source in transmission by scattering, reflection, refraction or diffraction.
  • the light coupling means is suitable for coupling a portion of the light arriving from the light source into the coating at an angle 0 greater than or equal to the angle 0 to tai of total reflection in the coating.
  • the angle 0 is the angle of incidence or reflection with respect to the perpendicular to the main surface of the pane.
  • the portion of the light coupled into the coating by the light source at an angle 0 greater than or equal to the angle ⁇ total of total reflection is increased by a factor of at least 50, preferably at least 200, by the light coupling means.
  • the light coupling means is introduced into the second main surface of the coating, preferably by laser structuring, mechanical structuring such as sandblasting, and/or etching, preferably chemical or physical etching.
  • a flat, irregular surface structuring is particularly suitable, which leads to diffuse light scattering when illuminated.
  • linear or grid-shaped (e.g. cross-grid-shaped) structures can be introduced.
  • the light coupling means according to the invention is not formed integrally with the coating.
  • the light coupling means is printed on the second main surface of the coating, for example by inkjet or screen printing.
  • the print advantageously contains particles that are suitable for scattering, refracting, diffracting or reflecting light.
  • the light coupling means contains a transparent body which is materially connected to the second main surface of the coating, for example by gluing, or consists thereof.
  • the transparent body according to the invention preferably contains a structured plastic film or plastic plate, for example with light-scattering, light-refracting, light-diffracting or light-reflecting particles, a holographic film, or consists of the same.
  • the transparent body according to the invention can also contain or consist of a flat arrangement of microprisms, for example of randomly or grid-shaped pyramids or of linearly arranged steps (hereinafter also referred to as step prisms).
  • the transparent body has a surface structure made of such microprisms.
  • Such microprisms can advantageously be produced by mechanical processing such as stamping or embossing, by chemical etching, by photolithography or other transfer techniques.
  • the refractive index n of the transparent body is preferably from m - 0.3 to m + 0.3, particularly preferably from m - 0.2 to m + 0.2 and in particular from m - 0.15 to ni + 0.15, where m is the refractive index of the first pane.
  • the light coupling means and in particular the transparent body is a part of the light source, for example a section of the housing.
  • the light source is connected to the coating directly or only via the light coupling means.
  • the light source is designed such that the light is not coupled into the first pane or another pane.
  • a glazing according to the invention can have one or more light sources, the light of which is coupled into the coating according to the invention by one or more of the light coupling means described above, wherein different light coupling means can also be combined in one glazing.
  • the light source is suitable for emitting visible light.
  • the light source contains or consists of at least one light emitting diode (LED), preferably at least one organic light emitting diode (OLED), at least one laser diode, at least one incandescent lamp and/or at least one gas discharge lamp.
  • LED light emitting diode
  • OLED organic light emitting diode
  • laser diode at least one laser diode
  • incandescent lamp at least one incandescent lamp
  • gas discharge lamp at least one gas discharge lamp.
  • the light source and in particular the plurality of laser or light-emitting diodes are arranged in a meandering, wave-like or zigzag shape on the coating according to the invention, in particular in the form of a circle or a loop. This allows a particularly large amount of light to be coupled into the coating.
  • the light coupling means is suitable for coupling out a portion of the light guided into the coating according to the invention, preferably by scattering, reflection, refraction or diffraction, on at least one of the main surfaces of the coating.
  • the light coupling means is introduced into the first main surface, into the second main surface and/or within the coating according to the invention, and/or arranged on the first main surface and/or on the second main surface.
  • the light coupling agent is preferably introduced into the first main surface and/or into the second main surface of the coating according to the invention by laser structuring, mechanical structuring such as sandblasting, and/or by etching.
  • the light coupling means can be firmly bonded to the first main surface and/or to the second main surface of the coating according to the invention, preferably by printing or Bonding a paint, a paste or particles, particularly preferably light-scattering, light-refracting or light-reflecting particles.
  • the light coupling means can comprise or consist of particles, particularly preferably light-scattering, light-refracting, light-diffracting or light-reflecting particles, scattering centers or cavities that are arranged within the coating according to the invention.
  • scattering centers or cavities can be introduced into the coating, for example, by laser structuring.
  • the light coupling means can contain or consist of at least one transparent body which is materially connected to the first or second main surface of the coating according to the invention, for example by gluing or arranging it on the first pane before applying the coating, wherein the transparent body preferably contains or consists of a) a structured plastic film or plastic plate or b) a transmission holographic film.
  • the structured plastic film or plastic plate has a planar arrangement of microprisms such as a step prism.
  • the light coupling means can be a reflective body which is materially connected to the second or the first main surface of the coating according to the invention, for example by gluing, wherein the reflective body preferably contains or consists of a) a structured plastic film or plastic plate or b) a transmission holographic film.
  • the structured plastic film or plastic plate advantageously has a planar arrangement of microprisms such as a step prism.
  • the light is coupled out, for example, via the second main surface and can be recognized by an observer who looks at the coating according to the invention via the second main surface.
  • the light extraction means can be a transparent body which is connected to the first or second main surface of the coating according to the invention, preferably in a materially bonded manner, for example by gluing.
  • the transparent body then advantageously contains or consists of a preferably structured, particularly preferably diffusely scattering or directionally refracting, for example by microprisms, transparent layer, plastic film or plastic plate, whose refractive index nw is significantly greater than ni.
  • n is then at least +0.2 or at least +0.5 greater than m.
  • a light extraction means can, for example, be a roughened film coated with titanium oxide (TiOx). If such a light extraction means is arranged, for example, on the second main surface of the coating according to the invention, the light is extracted, for example, via the second main surface and can be recognized by an observer who is looking at the coating according to the invention via the second main surface.
  • the transparent body of the light coupling means according to the invention can contain or consist of a planar arrangement of microprisms, for example of randomly or grid-shaped pyramids or of linearly arranged steps (hereinafter also referred to as step prisms).
  • the transparent body typically has a surface structure made of such microprisms.
  • Such microprisms can advantageously be produced by mechanical processing such as stamping or embossing, by chemical etching, by photolithography or other transfer techniques.
  • the glazing according to the invention has at least one light amplification means.
  • the light amplification means is arranged opposite the light coupling means with respect to the coating according to the invention.
  • Opposite here preferably means that the light amplification means is arranged at least in the region of the orthogonal projection of the light coupling means onto the coating according to the invention.
  • the light amplifying means may be arranged directly between the first main surface of the coating and the second main surface of the first pane.
  • the light amplification means is not formed integrally with the coating.
  • the light amplification agent according to the invention is particularly suitable for redirecting light emerging from the coating into the coating by reflection, preferably directed reflection, scattering, preferably diffuse scattering, or diffraction, preferably at an angle 0 greater than or equal to 0 to tai-
  • the glazing is a single glazing, for example a single pane.
  • the glazing according to the invention is a composite pane.
  • a second pane is preferably connected to the first main surface of the first pane by at least one intermediate layer, preferably by lamination.
  • the first pane and/or, if present, the second pane preferably contain or consist of glass, particularly preferably flat glass, very particularly preferably float glass, such as soda-lime glass, borosilicate glass or quartz glass, or clear plastics, preferably rigid clear plastics, in particular polyethylene, polypropylene, polycarbonate, polymethyl methacrylate, polystyrene, polyamide, polyester, polyvinyl chloride and/or mixtures thereof.
  • the first pane and/or second pane are preferably transparent, in particular for use of the panes as a windshield or rear window of a vehicle or other uses where high light transmission is desired.
  • a pane is then understood to be transparent in the sense of the invention if it has a transmission in the visible spectral range of greater than 70%.
  • at least the first pane and preferably also the second pane are made of clear glass.
  • the transmission can be much lower. for example, greater than 5%.
  • the second pane and/or the intermediate layer can be tinted or colored.
  • the thickness of the first pane and/or second pane can vary widely and can thus be perfectly adapted to the requirements of the individual case. Standard thicknesses of 1.0 mm to 25 mm are preferably used, preferably 1.4 mm to 2.5 mm for vehicle glass and preferably 4 mm to 25 mm for furniture, equipment and buildings.
  • the size of the panes can vary widely and depends on the size of the use according to the invention.
  • the first pane and second pane have areas of 200 cm 2 to 20 m 2 , which are common in vehicle construction and architecture, for example.
  • the glazing can have any three-dimensional shape.
  • the three-dimensional shape has no shadow zones so that it can be coated with further coatings, for example by cathode sputtering.
  • the panes are planar or slightly or strongly curved in one or more directions of space. In particular, planar substrates are used.
  • the panes can be colorless or colored.
  • the first pane and the second pane are connected to one another by at least one intermediate layer.
  • the intermediate layer is preferably transparent or tinted or colored.
  • the intermediate layer preferably contains at least one plastic, preferably polyvinyl butyral (PVB), ethylene vinyl acetate (EVA) and/or polyethylene terephthalate (PET), or consists thereof.
  • the intermediate layer can also contain, for example, polyurethane (PU), polypropylene (PP), polyacrylate, polyethylene (PE), polycarbonate (PC), polymethyl methacrylate, polyvinyl chloride, polyacetate resin, casting resins, acrylates, fluorinated ethylene propylene, polyvinyl fluoride and/or ethylene tetrafluoroethylene, or copolymers or mixtures thereof.
  • the intermediate layer can be formed by one or more films arranged one above the other, the thickness of a film preferably being from 0.025 mm to 1 mm, typically 0.38 mm or 0.76 mm.
  • the intermediate layers can preferably be thermoplastic and, after lamination, bond the first pane, the second pane and any other intermediate layers together.
  • the intermediate layer can also be a functional intermediate layer, in particular an intermediate layer that reflects infrared radiation, an intermediate layer that absorbs infrared radiation, an intermediate layer that absorbs UV radiation, an intermediate layer that is colored at least in sections and/or an intermediate layer that is tinted at least in sections.
  • the thermoplastic intermediate layer can also be a band filter film.
  • first pane and second pane are chosen to distinguish between the two panes in a composite pane according to the invention. The terms do not imply any statement about the geometric arrangement. If the composite pane according to the invention is intended, for example, to separate the interior from the external environment in an opening, for example in a vehicle or a building, the first pane can face the interior or the external environment.
  • the first pane and/or, if present, the second pane can have further suitable layers known per se, for example anti-reflective coatings, non-stick coatings, anti-scratch coatings, photocatalytic coatings or sun protection coatings or low-E coatings. It is understood that further layers on the second main surface of the first pane must not impair the properties of the coating according to the invention and in particular the total reflection of light in the coating.
  • the glazing can comprise further functional elements, in particular electronically controllable optical elements, for example PDLC elements, electrochromic elements or the like, which are typically arranged between the first pane and the second pane.
  • electronically controllable optical elements for example PDLC elements, electrochromic elements or the like, which are typically arranged between the first pane and the second pane.
  • a further aspect of the invention includes a glazing arrangement comprising a glazing according to the invention and a voltage source or control electronics that is connected to the light source.
  • the light source can be controlled by the voltage source or control electronics so that it emits light when a voltage is applied.
  • a further aspect of the invention comprises a method for producing a glazing according to the invention, wherein at least:
  • the coating is deposited on the first main surface of the first disc by a thin film deposition process.
  • a light source preferably a laser diode and/or a light-emitting diode, is arranged on the second main surface of the first pane in such a way that after the coating has been deposited in the second method step (S2), light can be coupled into the coating according to the invention.
  • the light is particularly preferably coupled into the coating parallel to an extension direction of the coating.
  • At least one prefabricated miniature light-emitting diode or miniature laser diode can be arranged on the second main surface of the first disk.
  • a simple light-emitting or laser diode has a p-n junction layer with an insulator between them, with two conductive layers above and below.
  • a laser or light-emitting diode or a respective strip can be deposited directly on the first wafer as a substrate using semiconductor production processes.
  • the light or a portion of the light from the light source is coupled into the coating according to the invention at an angle ⁇ greater than or equal to the angle ⁇ to tai of total reflection.
  • a light coupling agent preferably a light-scattering, light-reflecting, light-refracting or light-diffracting agent, on the first main surface of the coating, preferably by laser structuring, mechanical structuring such as sandblasting, etching, coating, printing or attaching a transparent body, Arranging at least one light source on the light coupling means and arranging at least one light coupling means on or in the coating.
  • the glazing according to the invention can be, for example, the roof window, windshield, side window or rear window of a vehicle or another vehicle glazing, for example a partition in a vehicle, preferably in a rail vehicle or a bus.
  • the glazing can be architectural glazing, for example in an external facade of a building or a partition inside a building, or a built-in part in furniture or appliances.
  • a further aspect of the invention comprises the use of the glazing according to the invention in buildings, in particular in the access area, window area, roof area or facade area, as a built-in part in furniture and equipment, in means of transport for traffic on land, in the air or on water, in particular in trains, ships and motor vehicles, for example as a windshield, rear window, side window and/or roof window.
  • Figure 1 is a schematic cross-sectional view of a design of a glazing according to the invention using the example of a single pane
  • Figure 2 is a schematic cross-sectional view of a further embodiment of a glazing according to the invention using the example of a composite pane
  • Figure 3A, B shows a schematic cross-sectional view of a further embodiment of a glazing according to the invention using the example of a single pane to illustrate the method according to the invention
  • Figure 4 is a schematic plan view of the second main surface of a coating according to the invention of a glazing according to the invention with a wave-shaped light source.
  • Figure 1 (Fig. 1) shows a plan view of an exemplary embodiment of a glazing 101 according to the invention using the example of a single pane.
  • the single pane can be, for example, automotive glazing, building glazing or a component of furniture or (electrical) equipment.
  • the glazing 101 is a roof pane of a vehicle.
  • the glazing 101 can also be part of an insulating glazing and serve, for example, as an outer or inner pane in a window of a building.
  • the glazing 101 can be arranged in an interior space and be, for example, glazing in a meeting room.
  • the glazing 101 contains a pane 1, which is also called the first pane 1 in the context of the present invention.
  • the dimensions of the first pane 1 are, for example, 1.4 m x 1.5 m.
  • the first pane 1 consists, for example, of soda-lime glass.
  • the thickness of the first pane 1 is, for example, 3 mm. It is understood that the thickness of the first pane 1 can be adapted to the respective use.
  • the first pane 1 can, for example, contain tempered, partially tempered or non-tempered glass. Alternatively, the first pane 1 can consist of a plastic, for example polycarbonate.
  • the first disc 1 has a first main surface I and a further opposite second main surface II.
  • the first disc 1 is further delimited by four circumferential side surfaces which are arranged orthogonal to the main surfaces I, II.
  • a coating 20 according to the invention is arranged on the first pane 1.
  • the second main surface II of the first pane 1 is in direct contact with the first main surface III of the coating 20.
  • the first pane 1 for example, consists of tinted glass with a transmission of 10% when viewed through the first pane 1.
  • the coating 20 consists, for example, of aluminum oxide (AI2O3) and has, for example, a thickness d2o of 1 pm.
  • the refractive index n2o of the coating 20 is, for example, 1.76 at a wavelength of 550 nm and the refractive index of the first pane 1 is, for example, 1.51 at a wavelength of 550 nm.
  • the refractive index n2o of the coating 20 is thus 0.25 greater than the refractive index m of the first pane 1.
  • the extinction coefficient k2o of the coating 20 is smaller than the extinction coefficient ki of the first disk 1 in the entire wavelength range of visible light, i.e. in the range between 380 nm and 780 nm.
  • the extinction coefficient k2o of the coating 20 at a wavelength of 550 nm is, for example, ⁇ 1*10 -9 and the extinction coefficient ki of the first disc 1 at the same wavelength of 550 nm is, for example, 2.3*10' 5 .
  • the extinction coefficient k2o of the coating 20 is thus smaller by a factor of more than 20,000 than the extinction coefficient ki of the first disc 1 at the wavelength of 550 nm.
  • the glazing 101 comprises a light source 4, for example a light-emitting diode (LED), which emits light in the visible range, for example.
  • the light beam of the light source 4 is directed in the direction of the coating 20 and strikes the second main surface IV of the coating 20 essentially orthogonally.
  • a light coupling means 5 is arranged between the light source 4 and the coating 20, which couples a large part of the light from the light source 4 into the first pane 1 at an angle 0 (theta) greater than or equal to the angle of total reflection 0 to tai by scattering, reflection, refraction or diffraction.
  • the light coupling means 5 can be designed in different ways. In the present embodiment, it consists of a region of the second main surface IV of the coating 20 in which scattering centers have been introduced into the second main surface IV by laser structuring.
  • a light coupling means 6 is arranged on the second main surface IV of the coating 20.
  • the light coupling means 6 can be arranged at any point on the first main surface III or the second main surface IV of the coating 20 and is arranged in particular offset from the light coupling means 5 (i.e. not directly opposite).
  • Light coupling means 5 are known to the person skilled in the art, for example from WO 2022/096365 A1, so that they will not be discussed in more detail here.
  • a light coupling means 5 can be introduced into the second main surface IV of the coating 20, for example, by laser structuring.
  • a line grid with a periodicity of 1 pm and a trench depth of 100 nm is structured into the surface.
  • a short-pulse laser is moved in a line shape over the main surface IV.
  • a diffusely scattering surface structure can be introduced into the surface by local ablation.
  • a short-pulse laser with an output of 10 watts was moved in a grid shape over the second main surface IV.
  • a transparent body can be arranged as a light coupling means 5 between the light source 4 and the coating 20.
  • the surface of the transparent body facing the light source 4 has, for example, a step prism, which is suitable for refracting a large part of the light from the light source 4 and coupling it into the coating 20 at an angle 0 > 0 to tai.
  • the pane contact surface of the transparent body is flat and glued directly to the main surface IV of the coating 20.
  • the transparent body consists, for example, of a plastic and in particular of a photopolymer, into which the step prism is introduced by suitable microstructuring or exposure processes.
  • structures of the main surface III, IV of the coating 20 are suitable as light extraction means 6, where total reflection is prevented and light can exit the coating 20 via the respective main surface III, IV.
  • the light extraction means 6 can comprise an imprint on the coating 20 or light-scattering, light-refracting, light-diffracting or light-reflecting particles, scattering centers, cavities or unevennesses introduced into the coating 20. Such scattering centers, cavities or unevennesses can be introduced into or onto the coating 20, for example, by laser structuring.
  • the light extraction means 6 is designed as an imprint of fine light-scattering particles on the second main surface IV of the coating 20. This interrupts the total reflection of the light beam L1 at the interface between the coating 20 and the surrounding air and light is extracted from the coating 20 by scattering.
  • the glazing 101 can have light amplification means (not shown here) which is arranged opposite the light source 4 with respect to the coating 20.
  • the light amplification means has the task of redirecting a large part of the light which penetrates the coating 20 at an angle 0 ⁇ 0 to tai and immediately exits again due to a lack of total reflection at the interface opposite the entrance surface (here first main surface III), back into the coating 20, preferably at an angle 0 > 0 to tai-
  • the light amplification means preferably uses mechanisms of reflection, light refraction, diffraction and/or scattering.
  • Such light amplification means are known to the person skilled in the art, for example from WO 2022/096365 A1, so they will not be discussed in more detail here.
  • the light amplification agent significantly increases the intensity of the light coupled into the coating 20 under total reflection and thus also the intensity of the light that can be coupled out.
  • Figure 2 shows a schematic cross-sectional view of a further embodiment of a glazing according to the invention using the example of a composite pane.
  • Figure 2 shows a further development of the glazing 101 according to the invention from Figure 1.
  • the glazing 101 of Figure 1 has a similar structure to the glazing 101 from Figure 2, so that in the following only the differences will be discussed and otherwise reference is made to the description of Figure 1.
  • the first pane 1 is connected to a second pane 2 via an intermediate layer 3 by lamination, for example in an autoclave.
  • the intermediate layer 3 is firmly connected on the one hand to the first main surface I of the first pane 1 and on the opposite side to the second main surface H' of the second pane 2.
  • the dimensions of the glazing 101 are, for example, 1.6 m x 1.5 m.
  • the first pane 1 is intended, for example, to face the interior of a vehicle in the installed position. This means that the second main surface II of the first pane 1 is accessible from the interior, whereas the first main surface l' of the second pane 2 faces outwards with respect to the vehicle interior.
  • the first pane 1 and the second pane 2 consist, for example, of soda-lime glass.
  • the thickness of the first pane 1 is, for example, 1.6 mm and the thickness of the second pane 2 is, for example, 2.1 mm. It is understood that the first pane 1 and the second pane 2 can have any thickness and can, for example, be the same thickness.
  • the intermediate layer 3 preferably consists of an acoustically dampening 3-layer PVB film.
  • the second pane 2 and the intermediate layer 3 are, for example, clear, i.e. neither tinted nor colored.
  • the light coupling means 5 consists of a transparent body 10 which contains a plastic film 12 which is glued to the second main surface IV of the coating 20.
  • the plastic film 12 is printed, for example, with light-scattering particles which diffusely scatter the light from the light source 4.
  • the light coupling means 6 is here, for example, also arranged on the second main surface IV of the coating 20. It is understood that it can also be arranged on the first main surface III of the coating 20 or within the coating 20.
  • the glazing 101 shown in Figure 2 is particularly suitable as a roof window of a motor vehicle.
  • a functional element with electrically controllable optical properties such as a PDLC functional element can be arranged between the first pane 1 and the second pane 2.
  • Figures 3A (Fig. 3A) and 3B (Fig. 3B) show a schematic cross-sectional representation of a further embodiment of a glazing 101 according to the invention using the example of a composite pane and illustrate the inventive method steps of a method for production according to the invention.
  • Figures 3A and 3B show an inventive development of the glazing 101 from Figure 1.
  • the glazing 101 of Figure 1 has a similar structure to the glazing 101 from Figure 3B, so that only the differences will be discussed below and otherwise reference is made to the description of Figure 1.
  • a first pane 1 is provided in a first method step S1 and in a subsequent second method step S2 a coating 20 according to the invention is deposited on the second main surface II of the first pane 1 by a thin-film deposition method.
  • Figure 3A shows the first pane 1 during the first method step S1, wherein a light source 4 in the form of an LED was also arranged on the second main surface II of the first pane 1.
  • the LED was glued, for example, as a finished component onto the first main surface II of the first pane 1.
  • the LED can also be manufactured directly on the first pane 1 using appropriate semiconductor construction processes.
  • a second method step S2 the coating 20 according to the invention is deposited on the second main surface II of the first pane 1.
  • Figure 3B shows the finished glazing 101 according to the invention.
  • the light source 4 i.e. the LED
  • the light source 4 can, for example, couple its light essentially parallel to the direction of extension of the main surfaces of the coating 20 (i.e. into an end face of the coating 20 and thus at an angle 0 to tai of total reflection in the coating 20.
  • Figure 4 (Fig. 4) shows a schematic plan view of another inventive
  • Glazing 101 in a plan view of the main surface IV of the coating 20 is Glazing 101 in a plan view of the main surface IV of the coating 20.
  • the light source 4 is designed as a band of individual LEDs that are arranged in a wave shape in the outer area of a windshield.
  • the wave shape increases the length of the band and thus the number of light sources 4, so that overall more light can be coupled into the coating 20 and thus more light can be coupled out of the coating 20 via light coupling elements 6.
  • the light source 4 can be designed in a meandering, sinusoidal or zigzag shape.
  • the glazing 101 according to the invention with the coating 20 according to the invention has a number of advantages over glazings according to the prior art: coatings according to the invention can be produced simply and inexpensively; the reduction in light intensity within a simple pane is reduced by using a coating with a lower extinction coefficient; glazings according to the invention are easier to recycle, particularly when using glass-based coatings compared to polymer-based coatings; suitable light extraction means (patterns, structures) can be introduced into or onto the coating simply and inexpensively, for example by direct laser structuring.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Surface Treatment Of Glass (AREA)

Abstract

The invention relates to a glazing (1) comprising: - at least one first pane (1) with a first main surface (I) and a second main surface (II), - a coating (20) with a first main surface (III) and a second main surface (IV), wherein the first main surface (III) of the coating (20) is arranged on the second main surface (II) of the first pane (1), - at least one light source (4), said light source (4) being connected to the coating (20) such that light of the light source (4) can be coupled into the coating (20), and - at least one light output coupling means (6) for coupling light out of the coating (20) via at least one of the main surfaces (III, IV), wherein for at least one wavelength λ of a light of the light source (4), - the refractive index n20 of the coating (20) is greater than the refractive index n1 of the first pane (1), and - the extinction coefficient k20 of the coating (20) is lower than the extinction coefficient k1 of the first pane (1).

Description

Beleuchtbare Verglasung Illuminated glazing

Die Erfindung betrifft eine beleuchtbare oder beleuchtete Verglasung, bevorzugt als Einzelscheibe oder Verbundscheibe und insbesondere eine Dachscheibe. The invention relates to an illuminable or illuminated glazing, preferably as a single pane or composite pane and in particular a roof pane.

Bei beleuchteten Verglasungen oder Lichtverteilungssystemen wird üblicherweise Licht unter Ausnutzung des Effekts der Totalreflexion in einen flächigen Lichterleiter der Verglasung eingekoppelt, was beispielsweise aus der WO 2008/047442 A1, der JP 2011 086547 A oder der JP 2015 043321 A bekannt ist In the case of illuminated glazing or light distribution systems, light is usually coupled into a flat light guide of the glazing by utilising the effect of total reflection, which is known, for example, from WO 2008/047442 A1, JP 2011 086547 A or JP 2015 043321 A

Aus WO 2010/049638 A1 , WO 2013/053629 A1 , WO 2014/060409 A1 , WO 2015/095288 A2 oder WO 2022/218741 A1 ist bekannt, Licht über die Seitenfläche (auch Seitenkante genannt) einer Glasscheibe einzukoppeln. Wenn die Lichtquelle sehr nah an der Glaskante platziert wird, kann auf diese Weise sehr effizient und über die gesamte Breite des Lichtleiters Licht in den Lichtleiter eingekoppelt werden. Dadurch kann eine sehr homogene flächige Beleuchtung erreicht werden. Dieses Prinzip ist gemeinhin bekannt und sehr verbreitet z.B. für Displayhintergrundbeleuchtungen und dekorative Beleuchtungsanwendungen. From WO 2010/049638 A1, WO 2013/053629 A1, WO 2014/060409 A1, WO 2015/095288 A2 or WO 2022/218741 A1 it is known to couple light via the side surface (also called the side edge) of a glass pane. If the light source is placed very close to the edge of the glass, light can be coupled into the light guide very efficiently and across the entire width of the light guide. This makes it possible to achieve very homogeneous surface illumination. This principle is generally known and very common, e.g. for display backlighting and decorative lighting applications.

In anderen Anwendungsfällen, beispielsweise bei einer Dachscheibe einer Fahrzeugverglasung im Automobilbereich, ist eine solche Lichteinkopplung über eine der Seitenfläche nur schwer möglich, da diese in der Karosserie des Fahrzeugs eingeklebt wird und außerdem die Scheibe typischerweise über eine rundgeschliffene Kante, den sogenannten C-Schliff, verfügt. Da die Seitenfläche für eine möglichst effiziente Lichteinkopplung möglichst glatt sein muss, ist ein aufwendiges Glätten und ein Polieren oder eine andere besondere Bearbeitung der Seitenfläche erforderlich. In other applications, such as a roof pane of vehicle glazing in the automotive sector, it is difficult to couple light into one of the side surfaces, as this is glued into the body of the vehicle and the pane typically has a rounded edge, the so-called C-cut. As the side surface must be as smooth as possible for the most efficient coupling of light, complex smoothing and polishing or other special processing of the side surface is required.

Aus WO 2013/110885 A1 , WO 2018/178591 A1 oder WO 2019/105855 A 1 ist bekannt, Lichtquellen in Ausnehmungen, beispielsweise in mechanisch gebohrte Löcher, einzusetzen und dadurch Licht in die Glasscheibe einzukoppeln. Allerdings ist durch die punktuelle Lichteinkopplung eine homogene Beleuchtung der gesamten Scheibe erschwert. Des Weiteren ist der Rand der Bohrung technisch bedingt matt, was die ebenfalls die Effizienz der Lichteinkopplung verringert. Zusätzlich führen die Bohrungen zu einer mechanischen Schwächung Verglasung. Alternativ kann die Lichtquelle auf einer der Hauptoberflächen der Glasscheibe angeordnet sein und das Licht kann über eine der Hauptoberflächen in die Glasscheibe eingekoppelt werden, was beispielsweise aus der WO 2022/096365 A1 bekannt ist.From WO 2013/110885 A1, WO 2018/178591 A1 or WO 2019/105855 A1 it is known to insert light sources into recesses, for example in mechanically drilled holes, and thereby couple light into the glass pane. However, the point-by-point coupling of light makes it difficult to achieve homogeneous illumination of the entire pane. Furthermore, the edge of the hole is matt for technical reasons, which also reduces the efficiency of the light coupling. In addition, the holes lead to a mechanical weakening of the glazing. Alternatively, the light source can be arranged on one of the main surfaces of the glass pane and the light can be coupled into the glass pane via one of the main surfaces, which is known, for example, from WO 2022/096365 A1.

In der WO 2014/060409 A1 wird eine zusätzliche Einfachsicherheitsscheibe mittels einer Ummantelung oder eines Gehäuses unter der eigentlichen Verbundglasscheibe angebracht, deren einzige Funktion, die eines Lichtleiters darstellt. Dies führt zu einem erheblichen Mehraufwand bei der Produktion und zusätzlichem Gewicht und Platzbedarf der gesamten Dachscheibe. In WO 2014/060409 A1, an additional single safety pane is attached by means of a casing or housing under the actual laminated glass pane, the only function of which is that of a light guide. This leads to a considerable additional cost in production and additional weight and space requirements for the entire roof pane.

Die Aufgabe der vorliegenden Erfindung besteht nunmehr darin, eine verbesserte Verglasung bereitzustellen, der einfach und kostengünstig hergestellt werden kann und eine besonders effiziente Beleuchtung der Verglasung ermöglicht. The object of the present invention is to provide an improved glazing which can be produced simply and inexpensively and which enables particularly efficient lighting of the glazing.

Die Aufgabe der vorliegenden Erfindung wird erfindungsgemäß durch eine Verglasung gemäß dem unabhängigen Anspruch 1 gelöst. Bevorzugte Ausführungen gehen aus den Unteransprüchen hervor. The object of the present invention is achieved by a glazing according to independent claim 1. Preferred embodiments emerge from the subclaims.

Die erfindungsgemäße Verglasung umfasst zumindest die folgenden Merkmale: mindestens eine erste Scheibe mit einer ersten Hauptoberfläche und einer zweiten Hauptoberfläche, eine Beschichtung mit einer ersten Hauptoberfläche und einer zweiten Hauptoberfläche, wobei die Beschichtung mit der ersten Hauptoberfläche auf der zweiten Hauptoberfläche der ersten Scheibe angeordnet ist, mindestens eine Lichtquelle, wobei die Lichtquelle derart mit der Beschichtung verbunden ist, dass Licht der Lichtquelle in die Beschichtung eingekoppelt werden kann, und mindestens ein Lichtauskopplungsmittel, zum Auskoppeln von Licht aus der Beschichtung über mindestens eine der Hauptoberfläche, wobei für mindestens eine Wellenlänge A eines Lichts der Lichtquelle ein Brechungsindex n2oder Beschichtung größer ist als ein Brechungsindex m der ersten Scheibe, und ein Extinktionskoeffizient k2o der Beschichtung kleiner ist als ein Extinktionskoeffizient ki der ersten Scheibe. The glazing according to the invention comprises at least the following features: at least one first pane with a first main surface and a second main surface, a coating with a first main surface and a second main surface, wherein the coating with the first main surface is arranged on the second main surface of the first pane, at least one light source, wherein the light source is connected to the coating in such a way that light from the light source can be coupled into the coating, and at least one light coupling means for coupling light out of the coating via at least one of the main surfaces, wherein for at least one wavelength A of a light from the light source, a refractive index n2or coating is greater than a refractive index m of the first pane, and an extinction coefficient k2o of the coating is smaller than an extinction coefficient ki of the first pane.

In einer vorteilhaften Ausgestaltung der erfindungsgemäßen Verglasung ist die Lichtquelle derart mit der erfindungsgemäßen Beschichtung verbunden, dass Licht der Lichtquelle unter einem Winkel 0 größer oder gleich dem Winkel 0totai der Totalreflektion in der Beschichtung eingekoppelt werden kann. In an advantageous embodiment of the glazing according to the invention, the light source is connected to the coating according to the invention in such a way that light from the Light source can be coupled into the coating at an angle 0 greater than or equal to the angle 0 to tai of total reflection.

In einer weiteren vorteilhaften Ausgestaltung der erfindungsgemäßen Verglasung ist die Lichtquelle derart ausgebildet, dass das Licht im Wesentlichen nicht in die erste Scheibe oder eine weitere (z.B. zweite) Scheibe eingekoppelt wird. Insbesondere wird das Licht nicht über die erste Scheibe in die Beschichtung eingekoppelt. In a further advantageous embodiment of the glazing according to the invention, the light source is designed such that the light is essentially not coupled into the first pane or another (e.g. second) pane. In particular, the light is not coupled into the coating via the first pane.

Die vorliegende Erfindung beruht auf der folgenden Erkenntnis der Erfinder: Glas - sei es mineralische Glas, wie Kalk-Natron-Glas, oder polymeres Glas - wird oft als transparent bezeichnet. Durch Ausnutzung der Totalreflektion kann in eine Glasscheibe eingekoppeltes Licht nahezu ohne Reflektionsverluste an den Grenzflächen zu anderen Medien (wie Luft) im Glas gehalten werden. Allerdings findet auch bei Glas eine im allgemeinen wellenlängenabhängige Extinktion und damit ein Intensitätsverlust statt, der mit der Länge des Wegs im Medium zunimmt. Besonders nachteilig ist dies bei getönten Glasscheiben oder bei Anordnungen, in denen die Lichtquelle weit vom Ort der Lichtauskopplung entfernt ist. The present invention is based on the following finding of the inventors: Glass - be it mineral glass, such as soda-lime glass, or polymer glass - is often described as transparent. By utilizing total reflection, light coupled into a pane of glass can be retained in the glass with almost no reflection losses at the interfaces with other media (such as air). However, even with glass, there is generally a wavelength-dependent extinction and thus a loss of intensity that increases with the length of the path in the medium. This is particularly disadvantageous with tinted panes of glass or in arrangements in which the light source is far away from the location of the light output.

In der vorliegenden Erfindung wird eine Beschichtung auf der ersten Scheibe angeordnet, die a) einen größeren Brechungsindex aufweist und damit einen planaren Lichtwellenleiter ausbildet und b) deren Extinktionskoeffizient niedrig ist, so dass weniger eingekoppeltes Licht entlang der Ausbreitung im Medium verloren geht. Die Kombination aus beidem erlaubt eine hohe auskoppelbare Lichtintensität, auch an Positionen auf der Verglasung, die weit von der jeweiligen Lichtquelle entfernt sind. In the present invention, a coating is arranged on the first pane which a) has a higher refractive index and thus forms a planar optical waveguide and b) whose extinction coefficient is low so that less coupled-in light is lost along the propagation in the medium. The combination of both allows a high light intensity to be coupled out, even at positions on the glazing that are far away from the respective light source.

In einer vorteilhaften Ausgestaltung einer erfindungsgemäßen Verglasung ist die Lichtquelle (4) geeignet, Licht mindestens einer Wellenlänge A im Wellenlängen-Bereich des sichtbaren Lichts (VIS), bevorzugt im Bereich von 380 nm bis 780 nm, auszustrahlen. In an advantageous embodiment of a glazing according to the invention, the light source (4) is suitable for emitting light of at least one wavelength A in the wavelength range of visible light (VIS), preferably in the range from 380 nm to 780 nm.

In einer weiteren vorteilhaften Ausgestaltung einer erfindungsgemäßen Verglasung ist der Extinktionskoeffizient k2o der Beschichtung um einen Faktor von mindestens 1.5, bevorzugt von mindestes 2, besonders bevorzugt von mindestes 5 und insbesondere von mindestens 10 kleiner als der Extinktionskoeffizient ki der ersten Scheibe. In einer weiteren vorteilhaften Ausgestaltung einer erfindungsgemäßen Verglasung beträgt der Extinktionskoeffizient k2o bei einer Wellenlänge A von 550 nm kleiner oder gleich 1*10-6, bevorzugt kleiner oder gleich 1*10-7 und besonders bevorzugt kleiner oder gleich 1*10-8. In a further advantageous embodiment of a glazing according to the invention, the extinction coefficient k2o of the coating is smaller than the extinction coefficient ki of the first pane by a factor of at least 1.5, preferably at least 2, particularly preferably at least 5 and in particular at least 10. In a further advantageous embodiment of a glazing according to the invention, the extinction coefficient k2o at a wavelength A of 550 nm is less than or equal to 1*10 -6 , preferably less than or equal to 1*10 -7 and particularly preferably less than or equal to 1*10 -8 .

In einer weiteren vorteilhaften Ausgestaltung einer erfindungsgemäßen Verglasung weist die Beschichtung eine im Wesentlichen konstante Dicke d2o auf. In a further advantageous embodiment of a glazing according to the invention, the coating has a substantially constant thickness d2o.

In einer weiteren vorteilhaften Ausgestaltung einer erfindungsgemäßen Verglasung weist die Beschichtung eine Dicke d2o von mindestens der minimalen Wellenlänge A des Lichts der Lichtquelle auf. In a further advantageous embodiment of a glazing according to the invention, the coating has a thickness d2o of at least the minimum wavelength A of the light from the light source.

In einer weiteren vorteilhaften Ausgestaltung einer erfindungsgemäßen Verglasung weist die Beschichtung eine Dicke d2o von 380 nm bis 10 pm, bevorzugt von 780 nm bis 5 pm und insbesondere von 800 nm bis 2 pm auf. In a further advantageous embodiment of a glazing according to the invention, the coating has a thickness d2o of 380 nm to 10 pm, preferably of 780 nm to 5 pm and in particular of 800 nm to 2 pm.

In einer weiteren vorteilhaften Ausgestaltung einer erfindungsgemäßen Verglasung wird die Beschichtung durch ein Dünnschichtabscheideverfahren auf der zweiten Hauptoberfläche der ersten Scheibe abgeschieden. In a further advantageous embodiment of a glazing according to the invention, the coating is deposited on the second main surface of the first pane by a thin-film deposition process.

In einer besonders vorteilhaften Ausführung der Erfindung wird die erfindungsgemäße Beschichtung durch an sich bekannte Verfahren abgeschieden, bevorzugt durch Kathodenzerstäubung oder magnetfeldunterstützte Kathodenzerstäubung. Das ist besonders vorteilhaft im Hinblick auf eine einfache, schnelle, kostengünstige und gleichmäßige Beschichtung des Substrats. Die Kathodenzerstäubung erfolgt in einer Schutzgasatmosphäre, beispielsweise aus Argon, beziehungsweise in einer Reaktivgasatmosphäre, beispielsweise durch Zugabe von Sauerstoff oder Stickstoff. In a particularly advantageous embodiment of the invention, the coating according to the invention is deposited by methods known per se, preferably by cathode sputtering or magnetic field-assisted cathode sputtering. This is particularly advantageous with regard to a simple, fast, cost-effective and uniform coating of the substrate. The cathode sputtering takes place in a protective gas atmosphere, for example of argon, or in a reactive gas atmosphere, for example by adding oxygen or nitrogen.

Erfindungsgemäße Beschichtungen können aber auch durch andere, dem Fachmann bekannte Verfahren aufgebracht werden, beispielsweise durch Aufdampfen oder chemische Gasphasenabscheidung (chemical vapour deposition, CVD), durch plasmagestützte Gasphasenabscheidung (PECVD) oder durch nasschemische Verfahren, beispielsweise Sol-Gel-Prozesse, wie Spray-Coating (Sprühbeschichtung), Dip-Coating (Tauchbeschichtung), Spin-Coating (Rotationsbeschichtung) oder Casting. Allgemein versteht man unter Sol-Gel-Prozessen die Kondensation kolloidal gelöster Partikel zu dreidimensionalen Netzwerken, wobei die Größe der Kolloide zwischen 1 nm und mehreren 1000 nm variieren kann. Beim Spray-Coating oder Sprühbeschichten wird durch Zuführung einer bestimmten Luftmenge ein Sol zerstäubt und dieses in sehr kleinen Partikeln auf das Substrat befördert. Beim sogenannten Dip-Coaten oder Tauchbeschichten wird das Substrat in eine Lösung getaucht und anschließend mit konstanter Geschwindigkeit wieder herausgezogen. Beim sogenannte Casting- Verfahren wird eine Syntheselösung auf das Substrat getropft und die Verdampfung des Lösemittels abgewartet. Auch die Herstellung von Beschichtungen durch Casting beruht auf dem „Evaporation-lnducedSelf-Assembly“ (EISA) Mechanismus. Die so erzeugten Filme können wesentlich dicker sein, als die durch Dip- oder Spin-Coaten erzeugten. However, coatings according to the invention can also be applied by other methods known to those skilled in the art, for example by vapor deposition or chemical vapor deposition (CVD), by plasma-enhanced vapor deposition (PECVD) or by wet-chemical methods, for example sol-gel processes such as spray coating, dip coating, spin coating or casting. In general, sol-gel processes are understood to be the condensation of colloidally dissolved particles to form three-dimensional networks, whereby the size of the colloids can vary between 1 nm and several thousand nm. In spray coating, a sol is atomized by supplying a certain amount of air and this is transported to the substrate in very small particles. In dip coating, the substrate is dipped in a solution and then pulled out again at a constant speed. In the casting process, a synthetic solution is dripped onto the substrate and the solvent is waited for to evaporate. The production of coatings by casting is also based on the "evaporation-induced self-assembly" (EISA) mechanism. The films produced in this way can be much thicker than those produced by dip or spin coating.

Besonders bevorzugt werden zur Herstellung von Siliziumdioxid-haltigen Beschichtungen oder Beschichtungen, die aus Siliziumdioxid bestehen, Verfahren der chemischen Gasphasenabscheidung (CVD) oder der plasmagestützte Gasphasenabscheidung (PECVD) eingesetzt, bei denen die Beschichtung durch eine Reaktion von Gasen, die Silizium enthalten, wie Silan oder Tetraethylorthosilicat (TEOS, auch Tetraethoxysilan), gebildet wird. Chemical vapor deposition (CVD) or plasma-enhanced vapor deposition (PECVD) processes are particularly preferred for producing silicon dioxide-containing coatings or coatings consisting of silicon dioxide, in which the coating is formed by a reaction of gases containing silicon, such as silane or tetraethylorthosilicate (TEOS, also tetraethoxysilane).

In einer weiteren vorteilhaften Ausgestaltung einer erfindungsgemäßen Verglasung enthält die Beschichtung Titanoxid, Aluminiumoxid, Siliziumnitrid, insbesondere SiaN4, Siliziumzirkonnitrid, Siliziumoxynitrid und/oder Siliziumdioxid, insbesondere SiÜ2, oder besteht daraus. In a further advantageous embodiment of a glazing according to the invention, the coating contains titanium oxide, aluminum oxide, silicon nitride, in particular SiA4, silicon zirconium nitride, silicon oxynitride and/or silicon dioxide, in particular SiO2, or consists thereof.

In einer weiteren vorteilhaften Ausgestaltung einer erfindungsgemäßen Verglasung ist der Brechungsindex n2oder Beschichtung um mindestens 0.1 , bevorzugt um mindestens 0.2 und insbesondere um mindestens 0.2 bis 1.5, größer ist als der Brechungsindex m der ersten Scheibe. In a further advantageous embodiment of a glazing according to the invention, the refractive index n2or coating is at least 0.1, preferably at least 0.2 and in particular at least 0.2 to 1.5, greater than the refractive index m of the first pane.

In einer weiteren vorteilhaften Ausgestaltung der Erfindung umfasst die erfindungsgemäße Verglasung mindestens ein, bevorzugt transparentes, Lichteinkopplungsmittel, wobei die Lichtquelle über das Lichteinkopplungsmittel mit der ersten Hauptoberfläche der Beschichtung verbunden ist, so dass Licht der Lichtquelle in die Beschichtung eingekoppelt werden kann. Als transparent im Sinne der Erfindung wird ein Gegenstand, insbesondere ein Lichteinkopplungsmittel, ein Lichtauskopplungsmittel und/oder ein transparenter Körper, verstanden, weicher eine Transmission im sichtbaren Spektral bereich von größer 20%, bevorzugt größer 50%, besonders bevorzugt von größer 70 %, insbesondere von größer 85 % aufweist. In a further advantageous embodiment of the invention, the glazing according to the invention comprises at least one, preferably transparent, light coupling means, wherein the light source is connected to the first main surface of the coating via the light coupling means, so that light from the light source can be coupled into the coating. For the purposes of the invention, transparent is understood to mean an object, in particular a light coupling means, a light coupling means and/or a transparent body, which has a transmission in the visible spectral range of greater than 20%, preferably greater than 50%, particularly preferably greater than 70%, in particular greater than 85%.

In einer vorteilhaften Ausgestaltung der erfindungsgemäßen Verglasung ist das Lichteinkopplungsmittel dazu geeignet, einen Teil des von der Lichtquelle eintreffenden Lichts in Transmission durch Streuung, Reflexion, Brechung oder Beugung abzulenken. In an advantageous embodiment of the glazing according to the invention, the light coupling means is suitable for deflecting a portion of the light arriving from the light source in transmission by scattering, reflection, refraction or diffraction.

In einer weiteren vorteilhaften Ausgestaltung der erfindungsgemäßen Verglasung ist das Lichteinkopplungsmittel geeignet, einen Teil des von der Lichtquelle eintreffenden Lichts unter einem Winkel 0 größer oder gleich dem Winkel 0totai der Totalreflexion in der Beschichtung in die Beschichtung einzukoppeln. Der Winkel 0 ist dabei der Einfalls- bzw. Ausfallswinkel bezüglich des Lots auf die Scheiben-Hauptoberfläche. Vorteilhafterweise ist der Anteil des von der Lichtquelle unter einem Winkel 0 größer oder gleich dem Winkel ©total der Totalreflexion in die Beschichtung eingekoppelten Lichts, durch das Lichteinkopplungsmittel um einen Faktor von mindestens 50, bevorzugt mindestens 200 erhöht. In a further advantageous embodiment of the glazing according to the invention, the light coupling means is suitable for coupling a portion of the light arriving from the light source into the coating at an angle 0 greater than or equal to the angle 0 to tai of total reflection in the coating. The angle 0 is the angle of incidence or reflection with respect to the perpendicular to the main surface of the pane. Advantageously, the portion of the light coupled into the coating by the light source at an angle 0 greater than or equal to the angle ©total of total reflection is increased by a factor of at least 50, preferably at least 200, by the light coupling means.

In einer vorteilhaften Ausgestaltung ist das Lichteinkopplungsmittel in die zweite Hauptoberfläche der Beschichtung eingebracht, bevorzugt durch Laserstrukturierung, mechanische Strukturierung wie Sandstrahlen, und/oder Ätzen, bevorzugt chemisches oder physikalische Ätzen. Geeignet ist dabei besonders eine flächige, unregelmäßige Oberflächenstrukturierung, die bei Beleuchtung zu einer diffusen Lichtstreuung führt. Alternativ können linienförmige oder gitterförmige (z.B. kreuzgitterförmige) Strukturen eingebracht werden. In an advantageous embodiment, the light coupling means is introduced into the second main surface of the coating, preferably by laser structuring, mechanical structuring such as sandblasting, and/or etching, preferably chemical or physical etching. A flat, irregular surface structuring is particularly suitable, which leads to diffuse light scattering when illuminated. Alternatively, linear or grid-shaped (e.g. cross-grid-shaped) structures can be introduced.

In einer weiteren vorteilhaften Ausgestaltung ist das erfindungsgemäße Lichteinkopplungsmittel nicht einstückig mit der Beschichtung ausgebildet. In a further advantageous embodiment, the light coupling means according to the invention is not formed integrally with the coating.

In einer alternativen vorteilhaften Ausgestaltung ist das Lichteinkopplungsmittel auf die zweite Hauptoberfläche der Beschichtung aufgedruckt, beispielsweise durch Inkjet oder Siebdruck. Vorteilhafterweise enthält der Aufdruck Partikel, die geeignet sind Licht zu streuen, zu brechen, zu beugen oder zu reflektieren. In einer weiteren alternativen vorteilhaften Ausgestaltung enthält das Lichteinkopplungsmittel einen transparenten Körper, der mit der zweiten Hauptoberfläche der Beschichtung stoffschlüssig verbunden ist, beispielsweise durch Verkleben, oder besteht daraus. In an alternative advantageous embodiment, the light coupling means is printed on the second main surface of the coating, for example by inkjet or screen printing. The print advantageously contains particles that are suitable for scattering, refracting, diffracting or reflecting light. In a further alternative advantageous embodiment, the light coupling means contains a transparent body which is materially connected to the second main surface of the coating, for example by gluing, or consists thereof.

Der erfindungsgemäße transparente Körper enthält bevorzugt eine strukturierte Kunststofffolie oder Kunststoff platte, beispielsweise mit lichtstreuenden, lichtbrechenden, lichtbeugenden oder lichtreflektierenden Partikeln, eine holographische Folie, oder draus besteht. Der erfindungsgemäße transparente Körper kann auch eine flächige Anordnung von Mikroprismen, beispielsweise aus zufällig oder rasterförmig angeordneten Pyramiden oder aus linienförmig angeordneten Stufen (im Folgenden auch Stufenprisma genannt) enthalten oder daraus bestehen. Typischerweise weist der transparente Körper eine Oberflächenstruktur aus derartigen Mikroprismen auf. Derartige Mikroprismen können vorteilhafterweise durch mechanische Bearbeitung wie Stempeln oder Prägen, durch chemisches Ätzen, durch Photolithographie oder andere Transfertechniken hergestellt werden. The transparent body according to the invention preferably contains a structured plastic film or plastic plate, for example with light-scattering, light-refracting, light-diffracting or light-reflecting particles, a holographic film, or consists of the same. The transparent body according to the invention can also contain or consist of a flat arrangement of microprisms, for example of randomly or grid-shaped pyramids or of linearly arranged steps (hereinafter also referred to as step prisms). Typically, the transparent body has a surface structure made of such microprisms. Such microprisms can advantageously be produced by mechanical processing such as stamping or embossing, by chemical etching, by photolithography or other transfer techniques.

Der Brechungsindex n des transparenten Körpers beträgt bevorzugt von m - 0,3 bis m + 0,3, besonders bevorzugt von m - 0,2 bis m + 0,2 und insbesondere von m - 0,15 bis ni + 0,15, wobei m der Brechungsindex der ersten Scheibe ist. The refractive index n of the transparent body is preferably from m - 0.3 to m + 0.3, particularly preferably from m - 0.2 to m + 0.2 and in particular from m - 0.15 to ni + 0.15, where m is the refractive index of the first pane.

In einer weiteren alternativen vorteilhaften Ausgestaltung ist das Lichteinkopplungsmittel und insbesondere der transparente Körper ein Teil der Lichtquelle, beispielsweise ein Abschnitt des Gehäuses. In a further alternative advantageous embodiment, the light coupling means and in particular the transparent body is a part of the light source, for example a section of the housing.

In einer vorteilhaften Ausgestaltung der Erfindung ist die Lichtquelle unmittelbar oder nur über das Lichteinkopplungsmittel mit der Beschichtung verbunden. Insbesondere ist die Lichtquelle derart ausgebildet, dass das Licht nicht in die erste Scheibe oder eine weitere Scheibe eingekoppelt wird. In an advantageous embodiment of the invention, the light source is connected to the coating directly or only via the light coupling means. In particular, the light source is designed such that the light is not coupled into the first pane or another pane.

Es versteht sich, dass eine erfindungsgemäße Verglasung eine oder mehrere Lichtquellen aufweisen kann, deren Licht durch eine oder mehrere der oben beschriebenen Lichteinkopplungsmittel in die erfindungsgemäße Beschichtung eingekoppelt wird, wobei auch verschiedene Lichteinkopplungsmittel in einer Verglasung kombiniert sein können. In einer vorteilhaften Ausgestaltung einer erfindungsgemäßen Verglasung ist die Lichtquelle dazu geeignet sichtbares Licht auszusenden. It is understood that a glazing according to the invention can have one or more light sources, the light of which is coupled into the coating according to the invention by one or more of the light coupling means described above, wherein different light coupling means can also be combined in one glazing. In an advantageous embodiment of a glazing according to the invention, the light source is suitable for emitting visible light.

In einer vorteilhaften Ausgestaltung einer erfindungsgemäßen Verglasung enthält die Lichtquelle mindestens eine Leuchtdiode (LED, englisch light emitting diode), bevorzugt mindestens eine Organische Leuchtdiode (OLED, organic englisch light emitting diode), mindestens eine Laserdiode, mindestens eine Glühlampe und/oder mindestens eine Gasentladungslampe oder besteht daraus. Besonders vorteilhaft ist eine Lichtquelle mit einer Vielzahl von Laser- oder Leuchtdioden, die insbesondere bandförmig auf einem Trägerband angeordnet sind. In an advantageous embodiment of a glazing according to the invention, the light source contains or consists of at least one light emitting diode (LED), preferably at least one organic light emitting diode (OLED), at least one laser diode, at least one incandescent lamp and/or at least one gas discharge lamp. A light source with a large number of laser or light emitting diodes, which are arranged in particular in a strip shape on a carrier strip, is particularly advantageous.

In einer besonders vorteilhaften Ausgestaltung einer erfindungsgemäßen Verglasung ist die Lichtquelle und insbesondere die Vielzahl der Laser- oder Leuchtdioden mäanderförmig, wellenförmig oder zickzackförmig auf der erfindungsgemäßen Beschichtung angeordnet, insbesondere in Form eines Kreises oder einer Schleife. Dies erlaubt die Einkopplung von besonders viel Licht in die Beschichtung. In a particularly advantageous embodiment of a glazing according to the invention, the light source and in particular the plurality of laser or light-emitting diodes are arranged in a meandering, wave-like or zigzag shape on the coating according to the invention, in particular in the form of a circle or a loop. This allows a particularly large amount of light to be coupled into the coating.

In einer vorteilhaften Ausgestaltung der erfindungsgemäßen Verglasung ist das Lichtauskopplungsmittel dazu geeignet, einen Teil des in die erfindungsgemäße Beschichtung geleiteten Lichts, bevorzugt durch Streuung, Reflexion, Brechung oder Beugung, an wenigstens einer der Hauptoberflächen der Beschichtung auszukoppeln. In an advantageous embodiment of the glazing according to the invention, the light coupling means is suitable for coupling out a portion of the light guided into the coating according to the invention, preferably by scattering, reflection, refraction or diffraction, on at least one of the main surfaces of the coating.

Vorteilhafterweise ist das Lichtauskopplungsmittel in die erste Hauptoberfläche, in die zweite Hauptoberfläche und/oder innerhalb der erfindungsgemäßen Beschichtung eingebracht, und/oder an der ersten Hauptoberfläche und/oder an der zweiten Hauptoberfläche angeordnet. Advantageously, the light coupling means is introduced into the first main surface, into the second main surface and/or within the coating according to the invention, and/or arranged on the first main surface and/or on the second main surface.

Dazu ist das Lichtauskopplungsmittel bevorzugt durch Laserstrukturierung, mechanische Strukturierung wie Sandstrahlen, und/oder durch Ätzen in die erste Hauptoberfläche und/oder in die zweite Hauptoberfläche der erfindungsgemäßen Beschichtung eingebracht. For this purpose, the light coupling agent is preferably introduced into the first main surface and/or into the second main surface of the coating according to the invention by laser structuring, mechanical structuring such as sandblasting, and/or by etching.

Alternativ oder in Kombination kann das Lichtauskopplungsmittel mit der ersten Hauptoberfläche und/oder mit der zweiten Hauptoberfläche der erfindungsgemäßen Beschichtung stoffschlüssig verbunden sein, bevorzugt durch Aufdrucken oder Aufkleben einer Farbe, einer Paste oder von Partikeln, besonders bevorzugt von lichtstreuenden, lichtbrechenden oder lichtreflektierenden Partikeln. Alternatively or in combination, the light coupling means can be firmly bonded to the first main surface and/or to the second main surface of the coating according to the invention, preferably by printing or Bonding a paint, a paste or particles, particularly preferably light-scattering, light-refracting or light-reflecting particles.

Alternativ oder in Kombination kann das Lichtauskopplungsmittel Partikel, besonders bevorzugt von lichtstreuenden, lichtbrechenden, lichtbeugenden oder lichtreflektierenden Partikeln, Streuzentren oder Kavitäten umfassen oder daraus bestehen, die innerhalb der erfindungsgemäßen Beschichtung angeordnet sind. Derartige Streuzentren oder Kavitäten können beispielsweise durch Laserstrukturierung in die Beschichtung eingebracht sein. Alternatively or in combination, the light coupling means can comprise or consist of particles, particularly preferably light-scattering, light-refracting, light-diffracting or light-reflecting particles, scattering centers or cavities that are arranged within the coating according to the invention. Such scattering centers or cavities can be introduced into the coating, for example, by laser structuring.

Alternativ oder in Kombination kann das Lichtauskopplungsmittel mindestens einen transparenten Körper enthalten oder daraus bestehen, der mit der ersten oder zweiten Hauptoberfläche der erfindungsgemäßen Beschichtung stoffschlüssig verbunden ist, beispielsweise durch Verkleben oder Anordnen auf der ersten Scheibe vor dem Aufbringen der Beschichtung, wobei der transparente Körper bevorzugt a) eine strukturierte Kunststofffolie oder Kunststoff platte oder b) eine transmissions-holographische Folie enthält oder daraus besteht. Alternatively or in combination, the light coupling means can contain or consist of at least one transparent body which is materially connected to the first or second main surface of the coating according to the invention, for example by gluing or arranging it on the first pane before applying the coating, wherein the transparent body preferably contains or consists of a) a structured plastic film or plastic plate or b) a transmission holographic film.

Vorteilhafterweise weist die strukturierte Kunststofffolie oder Kunststoffplatte eine flächige Anordnung von Mikroprismen wie ein Stufenprisma auf. Advantageously, the structured plastic film or plastic plate has a planar arrangement of microprisms such as a step prism.

Alternativ oder in Kombination kann das Lichtauskopplungsmittel ein reflektierender Körper sein, der mit der zweiten oder der ersten Hauptoberfläche der erfindungsgemäßen Beschichtung stoffschlüssig verbunden ist, beispielsweise durch Verkleben, wobei der reflektierende Körper bevorzugt a) eine strukturierte Kunststofffolie oder Kunststoff platte oder b) eine transmissions-holographische Folie enthält oder draus besteht. Vorteilhafterweise weist die strukturierte Kunststofffolie oder Kunststoffplatte eine flächige Anordnung von Mikroprismen wie ein Stufenprisma auf. Alternatively or in combination, the light coupling means can be a reflective body which is materially connected to the second or the first main surface of the coating according to the invention, for example by gluing, wherein the reflective body preferably contains or consists of a) a structured plastic film or plastic plate or b) a transmission holographic film. The structured plastic film or plastic plate advantageously has a planar arrangement of microprisms such as a step prism.

Ist ein derartiges Lichtauskopplungsmittel beispielsweise auf der zweiten Hauptoberfläche der erfindungsgemäßen Beschichtung angeordnet, so wird das Licht beispielsweise über die zweite Hauptoberfläche ausgekoppelt und ist von einem Beobachter, der die erfindungsgemäße Beschichtung über die zweite Hauptoberfläche betrachtet, zu erkennen. Alternativ oder in Kombination kann das Lichtauskopplungsmittel ein transparenter Körper sein, der mit der ersten oder der zweiten Hauptoberfläche der erfindungsgemäßen Beschichtung, bevorzugt stoffschlüssig, verbunden ist, beispielsweise durch Verkleben. Vorteilhafterweise enthält der transparente Körper dann eine bevorzugt strukturierte, besonders bevorzugt eine diffus-streuende oder gerichtetbrechende, beispielsweise durch Mikroprismen, transparente Schicht, Kunststofffolie oder Kunststoffplatte oder daraus besteht, deren Brechungsindex nw wesentlich größer als ni ist. Insbesondere ist n dann um mindestens +0,2 oder um mindestens +0,5 größer als m. Ein derartiges Lichtauskopplungsmittel kann beispielsweise eine aufgeraute mit Titanoxid (TiOx) beschichtete Folie sein. Ist ein derartiges Lichtauskopplungsmittel beispielsweise auf der zweiten Hauptoberfläche der erfindungsgemäßen Beschichtung angeordnet, so wird das Licht beispielsweise über die zweite Hauptoberfläche ausgekoppelt und ist von einem Beobachter, der die erfindungsgemäße Beschichtung über die zweite Hauptoberfläche betrachtet, zu erkennen. If such a light coupling means is arranged, for example, on the second main surface of the coating according to the invention, the light is coupled out, for example, via the second main surface and can be recognized by an observer who looks at the coating according to the invention via the second main surface. Alternatively or in combination, the light extraction means can be a transparent body which is connected to the first or second main surface of the coating according to the invention, preferably in a materially bonded manner, for example by gluing. The transparent body then advantageously contains or consists of a preferably structured, particularly preferably diffusely scattering or directionally refracting, for example by microprisms, transparent layer, plastic film or plastic plate, whose refractive index nw is significantly greater than ni. In particular, n is then at least +0.2 or at least +0.5 greater than m. Such a light extraction means can, for example, be a roughened film coated with titanium oxide (TiOx). If such a light extraction means is arranged, for example, on the second main surface of the coating according to the invention, the light is extracted, for example, via the second main surface and can be recognized by an observer who is looking at the coating according to the invention via the second main surface.

Der erfindungsgemäße transparente Körper des Lichtauskopplungsmittels kann jeweils eine flächige Anordnung von Mikroprismen, beispielsweise aus zufällig oder rasterförmig angeordneten Pyramiden oder aus linienförmig angeordneten Stufen (im Folgenden auch Stufenprisma genannt) enthalten oder daraus bestehen. Typischerweise weist der transparente Körper eine Oberflächenstruktur aus derartigen Mikroprismen auf. Derartige Mikroprismen können vorteilhafterweise durch mechanische Bearbeitung wie Stempeln oder Prägen, durch chemisches Ätzen, durch Photolithographie oder andere Transfertechniken hergestellt werden. The transparent body of the light coupling means according to the invention can contain or consist of a planar arrangement of microprisms, for example of randomly or grid-shaped pyramids or of linearly arranged steps (hereinafter also referred to as step prisms). The transparent body typically has a surface structure made of such microprisms. Such microprisms can advantageously be produced by mechanical processing such as stamping or embossing, by chemical etching, by photolithography or other transfer techniques.

In einer vorteilhaften Weiterbildung der Erfindung weist die erfindungsgemäße Verglasung mindestens ein Lichtverstärkungsmittel auf. Das Lichtverstärkungsmittel ist dem Lichteinkopplungsmittel bezüglich der erfindungsgemäßen Beschichtung gegenüberliegend angeordnet. Gegenüberliegend bedeutete hier bevorzugt, dass das Lichtverstärkungsmittel mindestens im Bereich der orthogonalen Projektion des Lichteinkopplungsmittels auf die erfindungsgemäße Beschichtung angeordnet ist. In an advantageous development of the invention, the glazing according to the invention has at least one light amplification means. The light amplification means is arranged opposite the light coupling means with respect to the coating according to the invention. Opposite here preferably means that the light amplification means is arranged at least in the region of the orthogonal projection of the light coupling means onto the coating according to the invention.

Das Lichtverstärkungsmittel kann unmittelbar zwischen der ersten Hauptoberfläche der Beschichtung der zweiten Hauptoberfläche der ersten Scheibe angeordnet sein. Insbesondere ist das Lichtverstärkungsmittel nicht einstückig mit der Beschichtung ausgebildet. The light amplifying means may be arranged directly between the first main surface of the coating and the second main surface of the first pane. In particular, the light amplification means is not formed integrally with the coating.

Das erfindungsgemäße Lichtverstärkungsmittel ist insbesondere dazu geeignet, aus der Beschichtung austretendes Licht durch Reflexion, bevorzugt gerichtete Reflexion, Streuung, bevorzugt diffuse Streuung, oder Beugung in die Beschichtung zurückzulenken, bevorzugt unter einem Winkel 0 größer oder gleich 0totai- The light amplification agent according to the invention is particularly suitable for redirecting light emerging from the coating into the coating by reflection, preferably directed reflection, scattering, preferably diffuse scattering, or diffraction, preferably at an angle 0 greater than or equal to 0 to tai-

In einer vorteilhaften Ausgestaltung der Erfindung ist die Verglasung eine Einzelverglasung, beispielsweise eine Einzelscheibe. In an advantageous embodiment of the invention, the glazing is a single glazing, for example a single pane.

In einer alternativen Ausgestaltung ist die erfindungsgemäße Verglasung eine Verbundscheibe. Dabei ist bevorzugt eine zweite Scheibe durch mindestens eine Zwischenschicht mit der ersten Hauptoberfläche der ersten Scheibe verbunden, bevorzugt durch Lamination. In an alternative embodiment, the glazing according to the invention is a composite pane. A second pane is preferably connected to the first main surface of the first pane by at least one intermediate layer, preferably by lamination.

Als erste Scheibe und zweite Scheibe sind im Grunde alle elektrisch isolierenden Substrate geeignet, die unter den Bedingungen der Herstellung und der Verwendung der erfindungsgemäßen Verbundscheibe thermisch und chemisch stabil sowie dimensions-stabil sind. Basically, all electrically insulating substrates that are thermally and chemically stable as well as dimensionally stable under the conditions of manufacture and use of the composite pane according to the invention are suitable as the first pane and second pane.

Die erste Scheibe und/oder, falls vorhanden, die zweite Scheibe enthalten bevorzugt Glas, besonders bevorzugt Flachglas ganz besonders bevorzugt Floatglas, wie Kalk- Natron-Glas Borosilikatglas oder Quarzglas, oder klare Kunststoffe, vorzugsweise starre klare Kunststoffe, insbesondere Polyethylen, Polypropylen, Polycarbonat, Polymethylmethacrylat, Polystyrol, Polyamid, Polyester, Polyvinylchlorid und/oder Gemische davon, oder bestehen daraus. Die erste Scheibe und/oder zweite Scheibe sind bevorzugt transparent, insbesondere für die Verwendung der Scheiben als Windschutzscheibe oder Rückscheiben eines Fahrzeugs oder anderen Verwendungen, bei denen eine hohe Lichttransmission erwünscht ist. Als transparent im Sinne der Erfindung wird dann eine Scheibe verstanden, die eine Transmission im sichtbaren Spektral bereich von größer 70 % aufweist. Insbesondere besteht zumindest die erste Scheibe und bevorzugt auch die zweite Scheibe aus Klarglas. The first pane and/or, if present, the second pane preferably contain or consist of glass, particularly preferably flat glass, very particularly preferably float glass, such as soda-lime glass, borosilicate glass or quartz glass, or clear plastics, preferably rigid clear plastics, in particular polyethylene, polypropylene, polycarbonate, polymethyl methacrylate, polystyrene, polyamide, polyester, polyvinyl chloride and/or mixtures thereof. The first pane and/or second pane are preferably transparent, in particular for use of the panes as a windshield or rear window of a vehicle or other uses where high light transmission is desired. A pane is then understood to be transparent in the sense of the invention if it has a transmission in the visible spectral range of greater than 70%. In particular, at least the first pane and preferably also the second pane are made of clear glass.

Für Scheiben, die nicht im verkehrsrelevanten Sichtfeld des Fahrers liegen, beispielsweise für Dachscheiben, kann die Transmission aber auch viel geringer sein, beispielsweise größer als 5 %. Dazu kann beispielsweise die zweite Scheibe und/oder die Zwischenschicht getönt oder gefärbt sein. However, for windows that are not in the driver’s relevant field of vision, such as roof windows, the transmission can be much lower. for example, greater than 5%. For this purpose, the second pane and/or the intermediate layer can be tinted or colored.

Die Dicke von erster Scheibe und/oder zweiter Scheibe kann breit variieren und so hervorragend den Erfordernissen des Einzelfalls angepasst werden. Vorzugsweise werden Standardstärken von 1 ,0 mm bis 25 mm, bevorzugt von 1 ,4 mm bis 2,5 mm für Fahrzeugglas und bevorzugt von 4 mm bis 25 mm für Möbel, Geräte und Gebäude, verwendet. Die Größe der Scheiben kann breit variieren und richtet sich nach der Größe der erfindungsgemäßen Verwendung. Die erste Scheibe und zweite Scheibe weisen beispielsweise im Fahrzeugbau und Architekturbereich übliche Flächen von 200 cm2 bis zu 20 m2 auf. The thickness of the first pane and/or second pane can vary widely and can thus be perfectly adapted to the requirements of the individual case. Standard thicknesses of 1.0 mm to 25 mm are preferably used, preferably 1.4 mm to 2.5 mm for vehicle glass and preferably 4 mm to 25 mm for furniture, equipment and buildings. The size of the panes can vary widely and depends on the size of the use according to the invention. The first pane and second pane have areas of 200 cm 2 to 20 m 2 , which are common in vehicle construction and architecture, for example.

Die Verglasung kann eine beliebige dreidimensionale Form aufweisen. Vorzugsweise hat die dreidimensionale Form keine Schattenzonen, so dass sie beispielsweise durch Kathodenzerstäubung mit weiteren Beschichtungen beschichtet werden kann. Bevorzugt sind die Scheiben planar oder leicht oder stark in einer Richtung oder in mehreren Richtungen des Raumes gebogen. Insbesondere werden planare Substrate verwendet. Die Scheiben können farblos oder gefärbt sein. The glazing can have any three-dimensional shape. Preferably, the three-dimensional shape has no shadow zones so that it can be coated with further coatings, for example by cathode sputtering. Preferably, the panes are planar or slightly or strongly curved in one or more directions of space. In particular, planar substrates are used. The panes can be colorless or colored.

Die erste Scheibe und die zweite Scheibe werden im Falle einer Verbundscheibe durch mindestens eine Zwischenschicht miteinander verbunden. Die Zwischenschicht ist bevorzugt transparent oder getönt oder gefärbt. Die Zwischenschicht enthält vorzugsweise mindestens einen Kunststoff, bevorzugt Polyvinylbutyral (PVB), Ethylenvinylacetat (EVA) und / oder Polyethylenterephthalat (PET) oder besteht daraus. Die Zwischenschicht kann aber auch beispielsweise Polyurethan (PU), Polypropylen (PP), Polyacrylat, Polyethylen (PE), Polycarbonat (PC), Polymethylmetacrylat, Polyvinylchlorid, Polyacetatharz, Gießharze, Acrylate, fluorinierte Ethylen-Propylene, Polyvinylfluorid und/oder Ethylen-Tetrafluorethylen, oder Copolymere oder Gemische davon enthalten. Die Zwischenschicht kann durch eine oder auch durch mehrere übereinander angeordnete Folien ausgebildet werden, wobei die Dicke einer Folie bevorzugt von 0,025 mm bis 1 mm beträgt, typischerweise 0,38 mm oder 0,76 mm. Die Zwischenschichten können bevorzugt thermoplastisch sein und nach der Lamination die erste Scheibe, die zweite Scheibe und eventuelle weitere Zwischenschichten miteinander verkleben. Besonders vorteilhaft sind sogenannte akustik-dämpfende Zwischenschichten, die bevorzugt aus drei Lagen PVB bestehen, wobei die mittlere Lage weicher ausgebildet ist als die zwei äußeren Lagen. Die Zwischenschicht kann auch eine funktionale Zwischenschicht sein, insbesondere eine Infrarotstrahlung reflektierende Zwischenschicht, eine Infrarotstrahlung absorbierende Zwischenschicht, eine UV-Strahlung absorbierende Zwischenschicht, eine zumindest abschnittsweise gefärbte Zwischenschicht und/oder eine zumindest abschnittsweise getönte Zwischenschicht. So kann die thermoplastische Zwischenschicht beispielsweise auch eine Bandfilterfolie sein. In the case of a composite pane, the first pane and the second pane are connected to one another by at least one intermediate layer. The intermediate layer is preferably transparent or tinted or colored. The intermediate layer preferably contains at least one plastic, preferably polyvinyl butyral (PVB), ethylene vinyl acetate (EVA) and/or polyethylene terephthalate (PET), or consists thereof. However, the intermediate layer can also contain, for example, polyurethane (PU), polypropylene (PP), polyacrylate, polyethylene (PE), polycarbonate (PC), polymethyl methacrylate, polyvinyl chloride, polyacetate resin, casting resins, acrylates, fluorinated ethylene propylene, polyvinyl fluoride and/or ethylene tetrafluoroethylene, or copolymers or mixtures thereof. The intermediate layer can be formed by one or more films arranged one above the other, the thickness of a film preferably being from 0.025 mm to 1 mm, typically 0.38 mm or 0.76 mm. The intermediate layers can preferably be thermoplastic and, after lamination, bond the first pane, the second pane and any other intermediate layers together. Particularly advantageous are so-called acoustically dampening intermediate layers, which preferably consist of three layers of PVB, with the middle layer being softer than the two outer layers. The intermediate layer can also be a functional intermediate layer, in particular an intermediate layer that reflects infrared radiation, an intermediate layer that absorbs infrared radiation, an intermediate layer that absorbs UV radiation, an intermediate layer that is colored at least in sections and/or an intermediate layer that is tinted at least in sections. For example, the thermoplastic intermediate layer can also be a band filter film.

Die Begriffe „erste Scheibe“ und „zweite Scheibe“ sind zur Unterscheidung der beiden Scheiben bei einer erfindungsgemäßen Verbundscheibe gewählt. Mit den Begriffen ist keine Aussage über die geometrische Anordnung verbunden. Ist die erfindungsgemäße Verbundscheibe beispielsweise dafür vorgesehen, in einer Öffnung, beispielsweise eines Fahrzeugs oder eines Gebäudes, den Innenraum gegenüber der äußeren Umgebung abzutrennen, so kann die erste Scheibe dem Innenraum oder der äußeren Umgebung zugewandt sein. The terms "first pane" and "second pane" are chosen to distinguish between the two panes in a composite pane according to the invention. The terms do not imply any statement about the geometric arrangement. If the composite pane according to the invention is intended, for example, to separate the interior from the external environment in an opening, for example in a vehicle or a building, the first pane can face the interior or the external environment.

Die erste Scheibe und/oder, falls vorhanden, die zweite Scheibe können weitere geeignete, an sich bekannte Schichten aufweisen, beispielsweise Antireflexbeschichtungen, Antihaftbeschichtungen, Antikratzbeschichtungen, photokatalytische Beschichtungen oder Sonnenschutzbeschichtungen oder Low-E- Beschichtungen. Es versteht sich, dass weitere Schichten auf der zweiten Hauptoberfläche der ersten Scheibe, die Eigenschaften der erfindungsgemäßen Beschichtung und insbesondere die Totalreflektion von Licht in der Beschichtung nicht beeinträchtigen dürfen. The first pane and/or, if present, the second pane can have further suitable layers known per se, for example anti-reflective coatings, non-stick coatings, anti-scratch coatings, photocatalytic coatings or sun protection coatings or low-E coatings. It is understood that further layers on the second main surface of the first pane must not impair the properties of the coating according to the invention and in particular the total reflection of light in the coating.

Des Weiteren kann die Verglasung weitere funktionelle Elemente, insbesondere elektronisch steuerbare optische Elemente aufweisen, beispielsweise PDLC-Elemente, Elektrochrome Elemente oder ähnliches, die typsicherweise zwischen der ersten Scheibe und der zweiten Scheibe angeordnet sind. Furthermore, the glazing can comprise further functional elements, in particular electronically controllable optical elements, for example PDLC elements, electrochromic elements or the like, which are typically arranged between the first pane and the second pane.

Ein weiterer Aspekt der Erfindung umfasst eine Verglasungsanordnung, umfassend eine erfindungsgemäße Verglasung und eine Spannungsquelle oder Steuerelektronik, die mit der Lichtquelle verbunden ist. Durch die Spannungsquelle oder Steuerelektronik kann die Lichtquelle gesteuert werden, so dass sie bei Anlegen einer Spannung Licht aussendet. Ein weiterer Aspekt der Erfindung umfasst ein Verfahren zur Herstellung einer erfindungsgemäßen Verglasung, wobei zumindest: A further aspect of the invention includes a glazing arrangement comprising a glazing according to the invention and a voltage source or control electronics that is connected to the light source. The light source can be controlled by the voltage source or control electronics so that it emits light when a voltage is applied. A further aspect of the invention comprises a method for producing a glazing according to the invention, wherein at least:

S1 : die erste Scheibe bereitgestellt wird und S1 : the first disc is provided and

S2: die Beschichtung auf der ersten Hauptoberfläche der ersten Scheibe durch ein Dünnschichtabscheideverfahren abgeschieden wird. S2: the coating is deposited on the first main surface of the first disc by a thin film deposition process.

In einer vorteilhaften Ausführungsform des erfindungsgemäßen Verfahrens wird vor dem zweiten Verfahrensschritt (S2), eine Lichtquelle, bevorzugt eine Laserdiode und/oder eine Leuchtdiode auf der zweiten Hauptoberfläche der ersten Scheibe derart angeordnet, dass nach dem Abscheiden der Beschichtung im zweiten Verfahrensschritt (S2), Licht in die erfindungsgemäße Beschichtung eingekoppelt werden kann. Besonders bevorzugt wird das Licht in die Beschichtung parallel zu einer Erstreckungsrichtung der Beschichtung eingekoppelt. In an advantageous embodiment of the method according to the invention, before the second method step (S2), a light source, preferably a laser diode and/or a light-emitting diode, is arranged on the second main surface of the first pane in such a way that after the coating has been deposited in the second method step (S2), light can be coupled into the coating according to the invention. The light is particularly preferably coupled into the coating parallel to an extension direction of the coating.

Dabei kann beispielsweise mindestens eine vorgefertigte Miniatur-Leuchtdiode oder Miniatur-Laserdiode auf der zweiten Hauptoberfläche der ersten Scheibe angeordnet werden. For example, at least one prefabricated miniature light-emitting diode or miniature laser diode can be arranged on the second main surface of the first disk.

Eine einfache Leucht- oder Laserdiode hat eine p-n-Übergangsschicht mit einem Isolator dazwischen, mit zwei leitfähigen Schichten oben und unten. Alternativ kann eine Laseroder Leuchtdiode oder ein jeweiliger Streifen mit Halbleiter-Produktionsverfahren unmittelbar auf der ersten Scheibe als Substrat abgeschieden werden. A simple light-emitting or laser diode has a p-n junction layer with an insulator between them, with two conductive layers above and below. Alternatively, a laser or light-emitting diode or a respective strip can be deposited directly on the first wafer as a substrate using semiconductor production processes.

In einer weiteren vorteilhaften Ausführungsform des erfindungsgemäßen Verfahrens wird das Licht bzw. ein Anteil des Lichts der Lichtquelle unter einem Winkel 0 größer oder gleich dem Winkel 0totai der Totalreflektion in die erfindungsgemäße Beschichtung eingekoppelt. In a further advantageous embodiment of the method according to the invention, the light or a portion of the light from the light source is coupled into the coating according to the invention at an angle θ greater than or equal to the angle θ to tai of total reflection.

Eine weitere vorteilhafte Ausführungsform des erfindungsgemäßen Verfahrens umfasst die folgenden Schritte: A further advantageous embodiment of the method according to the invention comprises the following steps:

- Anordnen eines, bevorzugt lichtstreuenden, lichtreflektierenden, lichtbrechenden oder lichtbeugenden, Lichteinkopplungsmittels auf der ersten Hauptoberfläche der Beschichtung, bevorzugt durch Laserstrukturierung, mechanische Strukturierung wie Sandstrahlen, Ätzen, Beschichten, Bedrucken oder Anbringen eines transparenten Körpers, Anordnen von mindestens einer Lichtquelle am Lichteinkopplungsmittel sowie Anordnen von mindestens einem Lichtauskopplungsmittel an oder in der Beschichtung. - Arranging a light coupling agent, preferably a light-scattering, light-reflecting, light-refracting or light-diffracting agent, on the first main surface of the coating, preferably by laser structuring, mechanical structuring such as sandblasting, etching, coating, printing or attaching a transparent body, Arranging at least one light source on the light coupling means and arranging at least one light coupling means on or in the coating.

Die erfindungsgemäße Verglasung kann beispielsweise die Dachscheibe, Windschutzscheibe, Seitenscheibe oder Heckscheibe eines Fahrzeugs oder eine andere Fahrzeugverglasung sein, beispielsweise eine Trennscheibe in einem Fahrzeug, bevorzugt in einem Schienenfahrzeug oder einem Bus. Alternativ kann die Verglasung eine Architekturverglasung, beispielsweise in einer Außenfassade eines Gebäudes oder eine Trennscheibe im Innern eines Gebäudes, oder ein Einbauteil in Möbeln oder Geräten sein. The glazing according to the invention can be, for example, the roof window, windshield, side window or rear window of a vehicle or another vehicle glazing, for example a partition in a vehicle, preferably in a rail vehicle or a bus. Alternatively, the glazing can be architectural glazing, for example in an external facade of a building or a partition inside a building, or a built-in part in furniture or appliances.

Ein weiterer Aspekt der Erfindung umfasst die Verwendung der erfindungsgemäßen Verglasung in Gebäuden, insbesondere im Zugangsbereich, Fensterbereich, Dachbereich oder Fassadenbereich, als Einbauteil in Möbeln und Geräten, in Fortbewegungsmitteln für den Verkehr auf dem Lande, in der Luft oder zu Wasser, insbesondere in Zügen, Schiffen und Kraftfahrzeugen beispielsweise als Windschutzscheibe, Heckscheibe, Seitenscheibe und / oder Dachscheibe. A further aspect of the invention comprises the use of the glazing according to the invention in buildings, in particular in the access area, window area, roof area or facade area, as a built-in part in furniture and equipment, in means of transport for traffic on land, in the air or on water, in particular in trains, ships and motor vehicles, for example as a windshield, rear window, side window and/or roof window.

Im Folgenden wird die Erfindung anhand von Zeichnungen und Ausführungsbeispielen näher erläutert. Die Zeichnungen sind schematische Darstellungen und nicht maßstabsgetreu. Die Zeichnungen schränkt die Erfindung in keiner Weise ein. The invention is explained in more detail below using drawings and exemplary embodiments. The drawings are schematic representations and not to scale. The drawings do not limit the invention in any way.

Es zeigen: Show it:

Figur 1 eine schematische Querschnittsdarstellung einer Ausgestaltung einer erfindungsgemäßen Verglasung am Beispiel einer Einzelscheibe,Figure 1 is a schematic cross-sectional view of a design of a glazing according to the invention using the example of a single pane,

Figur 2 eine schematische Querschnittsdarstellung einer weiteren Ausgestaltung einer erfindungsgemäßen Verglasung am Beispiel einer Verbundscheibe,Figure 2 is a schematic cross-sectional view of a further embodiment of a glazing according to the invention using the example of a composite pane,

Figur 3A, B eine schematische Querschnittsdarstellungen einer weiteren Ausgestaltung einer erfindungsgemäßen Verglasung am Beispiel einer Einzelscheibe zur Verdeutlichung des erfindungsgemäßen Verfahrens, und Figure 3A, B shows a schematic cross-sectional view of a further embodiment of a glazing according to the invention using the example of a single pane to illustrate the method according to the invention, and

Figur 4 eine schematische Draufsicht auf die zweite Hauptoberfläche einer erfindungsgemäßen Beschichtung einer erfindungsgemäßen Verglasung mit wellenförmig angeordneter Lichtquelle. Figur 1 (Fig. 1) zeigt eine Draufsicht auf eine beispielhafte Ausgestaltung einer erfindungs-gemäßen Verglasung 101 am Beispiel einer Einzelscheibe. Die Einzelscheibe kann beispielsweise eine Automobilverglasung, eine Bauverglasung oder Bauteil eines Möbels oder (elektrischen) Geräts sein. Beispielsweise ist die Verglasung 101 eine Dachscheibe eines Fahrzeugs. Die Verglasung 101 kann auch Teil einer Isolierverglasung sein und beispielsweise als Außen- oder Innenscheibe in einem Fenster eines Gebäudes dienen. Alternativ kann die Verglasung 101 in einem Innenraum angeordnet sein und beispielsweise eine Verglasung eines Besprechungsraums sein. Figure 4 is a schematic plan view of the second main surface of a coating according to the invention of a glazing according to the invention with a wave-shaped light source. Figure 1 (Fig. 1) shows a plan view of an exemplary embodiment of a glazing 101 according to the invention using the example of a single pane. The single pane can be, for example, automotive glazing, building glazing or a component of furniture or (electrical) equipment. For example, the glazing 101 is a roof pane of a vehicle. The glazing 101 can also be part of an insulating glazing and serve, for example, as an outer or inner pane in a window of a building. Alternatively, the glazing 101 can be arranged in an interior space and be, for example, glazing in a meeting room.

Die Verglasung 101 enthält eine Scheibe 1 , die im Rahmen der vorliegenden Erfindung auch erste Scheibe 1 genannt wird. Die Abmessungen der ersten Scheibe 1 betragen beispielsweise 1 ,4 m x 1 ,5 m. Die erste Scheibe 1 besteht beispielsweise aus Kalk- Natronglas. Die Dicke der ersten Scheibe 1 beträgt beispielsweise 3 mm. Es versteht sich, dass die Dicke der ersten Scheibe 1 der jeweiligen Verwendung angepasst sein kann. Die erste Scheibe 1 kann beispielsweise vorgespannte, teilvorgespanntes oder nicht-vorgespanntes Glas enthalten. Alternativ kann die erste Scheibe 1 aus einem Kunststoff, beispielsweise aus Polycarbonat bestehen. The glazing 101 contains a pane 1, which is also called the first pane 1 in the context of the present invention. The dimensions of the first pane 1 are, for example, 1.4 m x 1.5 m. The first pane 1 consists, for example, of soda-lime glass. The thickness of the first pane 1 is, for example, 3 mm. It is understood that the thickness of the first pane 1 can be adapted to the respective use. The first pane 1 can, for example, contain tempered, partially tempered or non-tempered glass. Alternatively, the first pane 1 can consist of a plastic, for example polycarbonate.

Die erste Scheibe 1 weist eine erste Hauptoberfläche I auf und eine weitere gegenüberliegende zweite Hauptoberfläche II. Die erste Scheibe 1 wird weiterhin durch vier umlaufende Seitenflächen begrenzt, die orthogonal zu den Hauptoberflächen I, II angeordnet sind. The first disc 1 has a first main surface I and a further opposite second main surface II. The first disc 1 is further delimited by four circumferential side surfaces which are arranged orthogonal to the main surfaces I, II.

Auf der ersten Scheibe 1 ist eine erfindungsgemäße Beschichtung 20 angeordnet. Dabei ist die zweite Hauptoberfläche II der ersten Scheibe 1 in unmittelbarem Kontakt mit der ersten Hauptoberfläche III der Beschichtung 20. A coating 20 according to the invention is arranged on the first pane 1. The second main surface II of the first pane 1 is in direct contact with the first main surface III of the coating 20.

Die erste Scheibe 1 besteht beispielsweise aus getöntem Glas mit einer Transmission von 10 % in Durchsicht durch die erste Scheibe 1. The first pane 1, for example, consists of tinted glass with a transmission of 10% when viewed through the first pane 1.

Die Beschichtung 20 besteht beispielsweise aus Aluminiumoxid (AI2O3) und weist beispielsweise eine Dicke d2o von 1 pm auf. Der Brechungsindex n2o der Beschichtung 20 beträgt bei einer Wellenlänge von 550 nm beispielsweise 1 ,76 und der Brechungsindex der ersten Scheibe 1 bei einer Wellenlänge von 550 nm beispielsweise 1 ,51 . Der Brechungsindex n2o der Beschichtung 20 ist damit um 0,25 größer als der Brechungsindex m der ersten Scheibe 1 . The coating 20 consists, for example, of aluminum oxide (AI2O3) and has, for example, a thickness d2o of 1 pm. The refractive index n2o of the coating 20 is, for example, 1.76 at a wavelength of 550 nm and the refractive index of the first pane 1 is, for example, 1.51 at a wavelength of 550 nm. The refractive index n2o of the coating 20 is thus 0.25 greater than the refractive index m of the first pane 1.

Der Extinktionskoeffizient k2o der Beschichtung 20 ist im gesamten Wellenlängen- Bereich des sichtbaren Lichts, also im Bereich zwischen 380 nm und 780 nm kleiner als der Extinktionskoeffizient ki der ersten Scheibe 1 . The extinction coefficient k2o of the coating 20 is smaller than the extinction coefficient ki of the first disk 1 in the entire wavelength range of visible light, i.e. in the range between 380 nm and 780 nm.

Der Extinktionskoeffizient k2o der Beschichtung 20 beträgt bei einer Wellenlänge von 550 nm beispielsweise < 1*10-9 und der Extinktionskoeffizient ki der ersten Scheibe 1 beträgt bei derselben Wellenlänge von 550 nm beispielsweise 2,3*10'5. Der Extinktionskoeffizient k2o der Beschichtung 20 ist damit bei der Wellenlänge von 550 nm um einen Faktor von mehr als 20000 kleiner als der Extinktionskoeffizient ki der ersten Scheibe 1. The extinction coefficient k2o of the coating 20 at a wavelength of 550 nm is, for example, < 1*10 -9 and the extinction coefficient ki of the first disc 1 at the same wavelength of 550 nm is, for example, 2.3*10' 5 . The extinction coefficient k2o of the coating 20 is thus smaller by a factor of more than 20,000 than the extinction coefficient ki of the first disc 1 at the wavelength of 550 nm.

Die Verglasung 101 umfasst eine Lichtquelle 4, beispielsweise eine Leuchtdiode (LED), die beispielsweise Licht im sichtbaren Bereich aussendet. Der Lichtstrahl der Lichtquelle 4 ist dabei in Richtung der Beschichtung 20 gerichtet und trifft im Wesentlichen orthogonal auf die zweite Hauptoberfläche IV der Beschichtung 20. The glazing 101 comprises a light source 4, for example a light-emitting diode (LED), which emits light in the visible range, for example. The light beam of the light source 4 is directed in the direction of the coating 20 and strikes the second main surface IV of the coating 20 essentially orthogonally.

Zwischen der Lichtquelle 4 und der Beschichtung 20 ist beispielsweise ein Lichteinkopplungsmittel 5 angeordnet, welches durch Streuung, Reflexion, Brechung oder Beugung, einen Großteil des Lichts der Lichtquelle 4 unter einen Winkel 0 (theta) größer oder gleich dem Winkel der Totalreflexion 0totai in die erste Scheibe 1 einkoppelt. Der Winkel der Totalreflexion 0totai ist vom Brechungsindex des lichtleitenden Mediums abhängig und beträgt bei der vorliegenden Beschichtung 20 (n = 1.76) zur ersten Scheibe 1 (n = 1 ,51) etwa 59°. For example, a light coupling means 5 is arranged between the light source 4 and the coating 20, which couples a large part of the light from the light source 4 into the first pane 1 at an angle 0 (theta) greater than or equal to the angle of total reflection 0 to tai by scattering, reflection, refraction or diffraction. The angle of total reflection 0 to tai depends on the refractive index of the light-conducting medium and is approximately 59° for the present coating 20 (n = 1.76) to the first pane 1 (n = 1.51).

Aufgrund des Prinzips der Totalreflexion propagiert alles unter einem Winkel 0 > 0totai in die Beschichtung 20 eingekoppelte Licht ohne Verluste an den Grenzflächen-durch die Beschichtung 20. In der Figur 1 ist dies durch den Lichtstrahl L1 schematisch dargestellt. Eine Abschwächung des eingekoppelten Lichts erfolgt lediglich durch die Extinktion innerhalb des Mediums der Beschichtung 20. Das Lichteinkopplungsmittel 5 kann dabei unterschiedlich ausgestaltet sein. Im vorliegenden Ausgestaltungsbeispiel besteht es aus einem Bereich der zweiten Hauptoberfläche IV der Beschichtung 20, in welchem durch Laserstrukturierung Streuzentren in die zweite Hauptoberfläche IV eingebracht wurden. Due to the principle of total reflection, all light coupled into the coating 20 at an angle 0 > 0 to tai propagates through the coating 20 without losses at the interfaces. This is shown schematically in Figure 1 by the light beam L1. The coupled light is only attenuated by the extinction within the medium of the coating 20. The light coupling means 5 can be designed in different ways. In the present embodiment, it consists of a region of the second main surface IV of the coating 20 in which scattering centers have been introduced into the second main surface IV by laser structuring.

Auf der der zweiten Hauptoberfläche IV der Beschichtung 20 ist beispielsweise ein Lichtauskopplungsmittel 6 angeordnet. Das Lichtauskopplungsmittel 6 kann dabei an jeder beliebigen Stelle der ersten Hauptoberfläche III oder der zweiten Hauptoberfläche IV der Beschichtung 20 angeordnet sein und ist insbesondere zum Lichteinkopplungsmittel 5 versetzt (d.h. nicht unmittelbar gegenüberliegend) angeordnet. For example, a light coupling means 6 is arranged on the second main surface IV of the coating 20. The light coupling means 6 can be arranged at any point on the first main surface III or the second main surface IV of the coating 20 and is arranged in particular offset from the light coupling means 5 (i.e. not directly opposite).

Erfindungsgemäße Lichteinkopplungsmittel 5 sind dem Fachmann bekannt, beispielsweise aus der WO 2022/096365 A1 , so dass hier nicht näher darauf eingegangen wird. Light coupling means 5 according to the invention are known to the person skilled in the art, for example from WO 2022/096365 A1, so that they will not be discussed in more detail here.

Ein Lichteinkopplungsmittel 5 kann beispielsweise durch Laserstrukturierung in die zweite Hauptoberfläche IV der Beschichtung 20 eingebracht werden. Dazu wird beispielsweise ein Liniengitter mit einer Periodizität von 1 pm und einer Grabentiefe von 100 nm in die Oberfläche strukturiert. Dazu wird beispielsweise ein Kurz-Puls-Laser und linienförmig über die Hauptoberfläche IV bewegt. Alternativ kann eine diffus-streuende Oberflächenstrukturierung durch lokales Abtragen in die Oberfläche eingebracht werden. Dazu wurde ein Kurz-Puls-Laser mit einer Leistung von 10 Watt rasterförmig über die zweite Hauptoberfläche IV bewegt. A light coupling means 5 can be introduced into the second main surface IV of the coating 20, for example, by laser structuring. For this purpose, for example, a line grid with a periodicity of 1 pm and a trench depth of 100 nm is structured into the surface. For this purpose, for example, a short-pulse laser is moved in a line shape over the main surface IV. Alternatively, a diffusely scattering surface structure can be introduced into the surface by local ablation. For this purpose, a short-pulse laser with an output of 10 watts was moved in a grid shape over the second main surface IV.

Alternativ kann ein transparenten Körper als Lichteinkopplungsmittel 5 zwischen Lichtquelle 4 und Beschichtung 20 angeordnet werden. Die der Lichtquelle 4 zugewandte Oberfläche des transparenten Körpers weist beispielsweise ein Stufenprisma auf, welches dazu geeignet ist, einen Großteil des Lichts aus der Lichtquelle 4 zu brechen und unter einem Winkel 0 > 0totai in die Beschichtung 20 einzukoppeln. Dazu ist die Scheibenkontaktfläche des transparenten Körpers plan ausgebildet und unmittelbar auf die Hauptoberfläche IV der Beschichtung 20 geklebt. Der transparente Körper besteht beispielsweise aus einem Kunststoff und insbesondere aus einem Photopolymer, in welches durch geeignete Mikrostukturierungs- oder Belichtungsverfahren das Stufenprisma eingebracht ist. Als Lichtauskopplungsmittel 6 sind beispielsweise Strukturierungen der Hauptoberfläche III, IV der Beschichtung 20 geeignet, an der die Totalreflexion verhindert ist und Licht über die jeweilige Hauptoberfläche III, IV aus der Beschichtung 20 austreten kann. Alternativ kann das Lichtauskopplungsmittel 6 einen Aufdruck auf die Beschichtung 20 oder in die Beschichtung 20 eingebrachte lichtstreuende, lichtbrechende, lichtbeugende oder lichtreflektierende Partikel, Streuzentren, Kavitäten oder Unebenheiten umfassen. Derartige Streuzentren, Kavitäten oder Unebenheiten können beispielsweise durch Laserstrukturierung in oder auf die Beschichtung 20 eingebracht werden. Alternatively, a transparent body can be arranged as a light coupling means 5 between the light source 4 and the coating 20. The surface of the transparent body facing the light source 4 has, for example, a step prism, which is suitable for refracting a large part of the light from the light source 4 and coupling it into the coating 20 at an angle 0 > 0 to tai. For this purpose, the pane contact surface of the transparent body is flat and glued directly to the main surface IV of the coating 20. The transparent body consists, for example, of a plastic and in particular of a photopolymer, into which the step prism is introduced by suitable microstructuring or exposure processes. For example, structures of the main surface III, IV of the coating 20 are suitable as light extraction means 6, where total reflection is prevented and light can exit the coating 20 via the respective main surface III, IV. Alternatively, the light extraction means 6 can comprise an imprint on the coating 20 or light-scattering, light-refracting, light-diffracting or light-reflecting particles, scattering centers, cavities or unevennesses introduced into the coating 20. Such scattering centers, cavities or unevennesses can be introduced into or onto the coating 20, for example, by laser structuring.

Im vorliegenden Ausführungsbeispiel hier ist beispielsweise das Lichtauskopplungsmittel 6 als ein Aufdruck aus feinen lichtstreuenden Partikeln auf die zweite Hauptoberfläche IV der Beschichtung 20 ausgebildet. Durch diese wird die Totalreflexion des Lichtstrahls L1 an der Grenzfläche zwischen Beschichtung 20 und umgebender Luft unterbrochen und Licht durch Streuung aus der Beschichtung 20 ausgekoppelt. In the present embodiment, for example, the light extraction means 6 is designed as an imprint of fine light-scattering particles on the second main surface IV of the coating 20. This interrupts the total reflection of the light beam L1 at the interface between the coating 20 and the surrounding air and light is extracted from the coating 20 by scattering.

In einer Weiterbildung der Erfindung kann die Verglasung 101 Lichtverstärkungsmittel (hier nicht dargestellt) aufweisen, welches bezüglich der Beschichtung 20 der Lichtquelle 4 gegenüberliegend angeordnet ist. Das Lichtverstärkungsmittel hat die Aufgabe, einen Großteil des Lichts, welches unter einem Winkel 0 < 0totai in die Beschichtung 20 eindringt und aufgrund mangelnder Totalreflexion an der der Eintrittsfläche gegenüberliegende Grenzfläche (hier erste Hauptoberfläche III) sofort wieder austritt, in die Beschichtung 20 zurückzulenken, bevorzugt unter einem Winkel 0 > 0totai- Dabei nutzt das Lichtverstärkungsmittel bevorzugt Mechanismen der Reflexion, Lichtbrechung, Beugung und/oder Streuung. Derartige Lichtverstärkungsmittel sind dem Fachmann bekannt, beispielsweise aus der WO 2022/096365 A1 , so dass hier nicht näher darauf eingegangen wird. In a further development of the invention, the glazing 101 can have light amplification means (not shown here) which is arranged opposite the light source 4 with respect to the coating 20. The light amplification means has the task of redirecting a large part of the light which penetrates the coating 20 at an angle 0 < 0 to tai and immediately exits again due to a lack of total reflection at the interface opposite the entrance surface (here first main surface III), back into the coating 20, preferably at an angle 0 > 0 to tai- The light amplification means preferably uses mechanisms of reflection, light refraction, diffraction and/or scattering. Such light amplification means are known to the person skilled in the art, for example from WO 2022/096365 A1, so they will not be discussed in more detail here.

Durch das Lichtverstärkungsmittel wird die Intensität des unter Totalreflexion in die Beschichtung 20 eingekoppelten Lichts und damit auch die Intensität des auskoppelbaren Lichts deutlich erhöht. The light amplification agent significantly increases the intensity of the light coupled into the coating 20 under total reflection and thus also the intensity of the light that can be coupled out.

Figur 2 (Fig. 2) zeigt eine schematische Querschnittsdarstellung einer weiteren Ausgestaltung einer erfindungsgemäßen Verglasung am Beispiel einer Verbundscheibe. Figur 2 zeigt eine erfindungsgemäße Weiterbildung der Verglasung 101 aus Figur 1. Die Verglasung 101 der Figur 1 hat einen ähnlichen Aufbau wie die Verglasung 101 aus Figur 2, so dass im Folgenden nur auf die Unterschiede eingegangen wird und ansonsten auf die Beschreibung zur Figur 1 verwiesen wird. Figure 2 (Fig. 2) shows a schematic cross-sectional view of a further embodiment of a glazing according to the invention using the example of a composite pane. Figure 2 shows a further development of the glazing 101 according to the invention from Figure 1. The glazing 101 of Figure 1 has a similar structure to the glazing 101 from Figure 2, so that in the following only the differences will be discussed and otherwise reference is made to the description of Figure 1.

Im Unterschied zur Verglasung 101 aus Figur 1 ist in Figur 2 die erste Scheibe 1 über eine Zwischenschicht 3 mit einer zweiten Scheibe 2 durch Lamination, beispielsweise in einem Autoklaven, verbunden. Die Zwischenschicht 3 ist dabei einerseits fest mit der ersten Hauptoberfläche I der ersten Scheibe 1 und auf der gegenüberliegenden Seite mit der zweiten Hauptoberfläche H‘ der zweiten Scheibe 2 verbunden. In contrast to the glazing 101 from Figure 1, in Figure 2 the first pane 1 is connected to a second pane 2 via an intermediate layer 3 by lamination, for example in an autoclave. The intermediate layer 3 is firmly connected on the one hand to the first main surface I of the first pane 1 and on the opposite side to the second main surface H' of the second pane 2.

Die Abmessungen der Verglasung 101 betragen beispielsweise 1 ,6 m x 1 ,5 m. Die erste Scheibe 1 ist beispielsweise dafür vorgesehen, in Einbaulage dem Innenraum eines Fahrzeugs zugewandt zu sein. Das heißt, die zweite Hauptoberfläche II der ersten Scheibe 1 ist vom Innenraum aus zugänglich, wogegen die erste Hauptoberfläche l‘ der zweiten Scheibe 2 bezüglich des Fahrzeuginnenraums nach außen weist. Erste Scheibe 1 und zweite Scheibe 2 bestehen beispielsweise aus Kalk-Natronglas. Die Dicke der ersten Scheibe 1 beträgt beispielsweise 1 ,6 mm und die Dicke der zweiten Scheibe 2 beträgt beispielsweise 2,1 mm. Es versteht sich, dass erste Scheibe 1 und zweite Scheibe 2 beliebige Dicken aufweisen können und beispielsweise auch gleich dick ausgebildet sein können. Die Zwischenschicht 3 besteht bevorzugt aus einer akustikdämpfenden 3-lagigen PVB-Folie. Die zweite Scheibe 2 und die Zwischenschicht 3 sind beispielsweis klar, d.h. weder getönt noch gefärbt. The dimensions of the glazing 101 are, for example, 1.6 m x 1.5 m. The first pane 1 is intended, for example, to face the interior of a vehicle in the installed position. This means that the second main surface II of the first pane 1 is accessible from the interior, whereas the first main surface l' of the second pane 2 faces outwards with respect to the vehicle interior. The first pane 1 and the second pane 2 consist, for example, of soda-lime glass. The thickness of the first pane 1 is, for example, 1.6 mm and the thickness of the second pane 2 is, for example, 2.1 mm. It is understood that the first pane 1 and the second pane 2 can have any thickness and can, for example, be the same thickness. The intermediate layer 3 preferably consists of an acoustically dampening 3-layer PVB film. The second pane 2 and the intermediate layer 3 are, for example, clear, i.e. neither tinted nor colored.

Das Lichteinkopplungsmittel 5 besteht in diesem Beispiel aus einem transparenten Körper 10, der eine Kunststofffolie 12 enthält, welche mit der zweiten Hauptoberfläche IV der Beschichtung 20 verklebt ist. Die Kunststofffolie 12 ist beispielsweise mit lichtstreuenden Partikeln bedruckt, die das Licht der Lichtquelle 4 diffus streut. In this example, the light coupling means 5 consists of a transparent body 10 which contains a plastic film 12 which is glued to the second main surface IV of the coating 20. The plastic film 12 is printed, for example, with light-scattering particles which diffusely scatter the light from the light source 4.

Das Lichtauskopplungsmittel 6 ist hier beispielsweise ebenfalls auf der zweiten Hauptoberfläche IV der Beschichtung 20 angeordnet. Es versteht sich, dass es auch auf der ersten Hauptoberfläche III der Beschichtung 20 oder innerhalb der Beschichtung 20 angeordnet sein kann. The light coupling means 6 is here, for example, also arranged on the second main surface IV of the coating 20. It is understood that it can also be arranged on the first main surface III of the coating 20 or within the coating 20.

Die in Figur 2 gezeigte Verglasung 101 eignet sich besonders gut als Dachscheibe eines Kraftfahrzeugs. Dazu kann beispielsweise ein Funktionselement mit elektrisch steuerbaren optischen Eigenschaften wie ein PDLC-Funktionselement zwischen erster Scheibe 1 und zweiter Scheibe 2 angeordnet sein. Die Figuren 3A (Fig. 3A) und 3B (Fig. 3B) zeigen eine schematische Querschnittsdarstellungen einer weiteren Ausgestaltung einer erfindungsgemäßen Verglasung 101 am Beispiel einer Verbundscheibe und verdeutlichen die erfindungsgemäßen Verfahrensschritte eines erfindungsgemäßen Verfahrens zur Herstellung. Die Figuren 3A und 3B zeigen eine erfindungsgemäße Weiterbildung der Verglasung 101 aus Figur 1. Die Verglasung 101 der Figur 1 hat einen ähnlichen Aufbau wie die Verglasung 101 aus Figur 3B, so dass im Folgenden nur auf die Unterschiede eingegangen wird und ansonsten auf die Beschreibung zur Figur 1 verwiesen wird. The glazing 101 shown in Figure 2 is particularly suitable as a roof window of a motor vehicle. For this purpose, for example, a functional element with electrically controllable optical properties such as a PDLC functional element can be arranged between the first pane 1 and the second pane 2. Figures 3A (Fig. 3A) and 3B (Fig. 3B) show a schematic cross-sectional representation of a further embodiment of a glazing 101 according to the invention using the example of a composite pane and illustrate the inventive method steps of a method for production according to the invention. Figures 3A and 3B show an inventive development of the glazing 101 from Figure 1. The glazing 101 of Figure 1 has a similar structure to the glazing 101 from Figure 3B, so that only the differences will be discussed below and otherwise reference is made to the description of Figure 1.

Beim erfindungsgemäßen Verfahren zur Herstellung einer erfindungsgemäßen Verglasung 101 wird in einem ersten Verfahrensschritt S1 eine erste Scheibe 1 bereitgestellt und in einem anschließenden zweiten Verfahrensschritt S2 eine erfindungsgemäße Beschichtung 20 auf der zweiten Hauptoberfläche II der ersten Scheibe 1 durch ein Dünnschichtabscheideverfahren abgeschieden. In the method according to the invention for producing a glazing 101 according to the invention, a first pane 1 is provided in a first method step S1 and in a subsequent second method step S2 a coating 20 according to the invention is deposited on the second main surface II of the first pane 1 by a thin-film deposition method.

Figur 3A zeigt die erste Scheibe 1 während des ersten Verfahrensschritt S1 , wobei zudem eine Lichtquelle 4 in Form einer LED auf der zweiten Hauptoberfläche II der ersten Scheibe 1 angeordnet wurde. Die LED wurde dabei beispielsweise als fertiges Bauteil auf die erste Hauptoberfläche II der ersten Scheibe 1 aufgeklebt. Alternativ kann die LED auch mit entsprechenden Halbleiter-Bau-Verfahren unmittelbar auf der ersten Scheibe 1 hergestellt werden. Figure 3A shows the first pane 1 during the first method step S1, wherein a light source 4 in the form of an LED was also arranged on the second main surface II of the first pane 1. The LED was glued, for example, as a finished component onto the first main surface II of the first pane 1. Alternatively, the LED can also be manufactured directly on the first pane 1 using appropriate semiconductor construction processes.

Anschließend wird in einem zweiten Verfahrensschritt S2 die erfindungsgemäße Beschichtung 20 auf der zweiten Hauptoberfläche II der ersten Scheibe 1 abgeschieden. Subsequently, in a second method step S2, the coating 20 according to the invention is deposited on the second main surface II of the first pane 1.

Figur 3B zeigt die fertige erfindungsgemäße Verglasung 101. Dabei wurde die Lichtquelle 4, also die LED derart auf der zweiten Hauptoberfläche II der ersten Scheibe 1 angeordnet, dass nach dem Abscheiden der Beschichtung 20 im zweiten Verfahrensschritt S2, das Licht der Lichtquelle 4 in die Beschichtung 20 eingekoppelt werden kann. D.h. die Lichtquelle 4 kann ihr Licht beispielsweise im Wesentlichen parallel zur Erstreckungsrichtung der Hauptoberflächen der Beschichtung 20 (also in eine Stirnfläche der Beschichtung 20 und damit unter einem Winkel 0totai der Totalreflektion in der Beschichtung 20 einkoppeln. Figur 4 (Fig. 4) zeigt eine schematische Draufsicht auf einer weiteren erfindungsgemäßeFigure 3B shows the finished glazing 101 according to the invention. The light source 4, i.e. the LED, was arranged on the second main surface II of the first pane 1 in such a way that after the deposition of the coating 20 in the second process step S2, the light from the light source 4 can be coupled into the coating 20. This means that the light source 4 can, for example, couple its light essentially parallel to the direction of extension of the main surfaces of the coating 20 (i.e. into an end face of the coating 20 and thus at an angle 0 to tai of total reflection in the coating 20. Figure 4 (Fig. 4) shows a schematic plan view of another inventive

Verglasung 101 in einer Draufsicht auf die Hauptoberfläche IV der Beschichtung 20. Glazing 101 in a plan view of the main surface IV of the coating 20.

Die Lichtquelle 4 ist dabei als ein Band aus einzelnen LEDs ausgebildet, die wellenförmig im äußeren Bereich einer Windschutzscheibe angeordnet sind. Durch die Wellenform wird die Länge des Bandes und damit die Anzahl an Lichtquellen 4 vergrößert, so dass insgesamt mehr Licht in die Beschichtung 20 eingekoppelt werden kann und damit auch mehr Licht über Lichtauskopplungselemente 6 aus der Beschichtung 20 ausgekoppelt werden kann. Alternativ kann die Lichtquelle 4 maänderförmig, sinusförmig oder zickzackförmig ausgebildet sein. The light source 4 is designed as a band of individual LEDs that are arranged in a wave shape in the outer area of a windshield. The wave shape increases the length of the band and thus the number of light sources 4, so that overall more light can be coupled into the coating 20 and thus more light can be coupled out of the coating 20 via light coupling elements 6. Alternatively, the light source 4 can be designed in a meandering, sinusoidal or zigzag shape.

Die erfindungsgemäße Verglasung 101 mit der erfindungsgemäßen Beschichtung 20 hat eine Reihe von Vorteilen gegenüber Verglasungen nach dem Stand der Technik: erfindungsgemäße Beschichtungen lassen sich einfach und kostengünstig herstellen; die Verminderung der Lichtintensität innerhalb einer einfachen Scheibe wird durch die Verwendung einer Beschichtung mit niedrigerem Extinktionskoeffizienten reduziert; erfindungsgemäße Verglasungen sind insbesondere bei der Verwendung von glasbasierten Beschichtungen im Vergleich zu polymerbasierten Beschichtungen, einfacher zu recyceln; geeignete Lichtauskopplungsmittel (Muster, Strukturen) lassen sich einfach und kostengünstig, beispielsweise durch direkte Laserstrukturierung, in oder auf die Beschichtung einbringen. The glazing 101 according to the invention with the coating 20 according to the invention has a number of advantages over glazings according to the prior art: coatings according to the invention can be produced simply and inexpensively; the reduction in light intensity within a simple pane is reduced by using a coating with a lower extinction coefficient; glazings according to the invention are easier to recycle, particularly when using glass-based coatings compared to polymer-based coatings; suitable light extraction means (patterns, structures) can be introduced into or onto the coating simply and inexpensively, for example by direct laser structuring.

Dies war für den Fachmann unerwartet und überraschend. This was unexpected and surprising for the expert.

Bezugszeichenliste List of reference symbols

1 erste Scheibe 1 first slice

2 zweite Scheibe 2 second disc

3 Zwischenschicht 3 Intermediate layer

4 Lichtquelle 4 Light source

5 Lichteinkopplungsmittel 5 Light coupling agents

6 Lichtauskopplungsmittel 6 Light extraction means

10 transparenter Körper oder reflektierender Körper 10 transparent body or reflective body

11 Stufenprisma 11 Step prism

12 Kunststofffolie 12 Plastic film

20 Beschichtung 20 Coating

101 Verglasung 101 Glazing

L1 Lichtstrahl L1 light beam

0 Winkel (theta) ötotai Winkel (theta) der Totalreflexion ki Extinktionskoeffizient der ersten Scheibe 1 k2o Extinktionskoeffizient der Beschichtung 20 ni Brechungsindex der ersten Scheibe 1 n Brechungsindex des transparenten oder reflektierenden Körpers 10 n2o Brechungsindex der Beschichtung 20 0 Angle (theta) ötotai Angle (theta) of total reflection ki Extinction coefficient of the first pane 1 k2o Extinction coefficient of the coating 20 ni Refractive index of the first pane 1 n Refractive index of the transparent or reflecting body 10 n2o Refractive index of the coating 20

I erste Hauptoberfläche, außenseitige Oberfläche der ersten Scheibe 1I first main surface, outer surface of the first disc 1

II zweite Hauptoberfläche, innenseitige Oberfläche der ersten Scheibe 1 l‘ erste Hauptoberfläche, außenseitigen Oberfläche des zweiten Scheibe 2II second main surface, inside surface of the first disc 1 l‘ first main surface, outside surface of the second disc 2

H‘ zweite Hauptoberfläche, innenseitigen Oberfläche des zweiten Scheibe 1H‘ second main surface, inside surface of the second disc 1

III erste Hauptoberfläche, außenseitige Oberfläche der Beschichtung 20III first main surface, outer surface of the coating 20

VI zweite Hauptoberfläche, innenseitige Oberfläche der Beschichtung 20 VI second main surface, inside surface of the coating 20

Claims

Patentansprüche Verglasung (101) umfassend: mindestens eine erste Scheibe (1) mit einer ersten Hauptoberfläche (I) und einer zweiten Hauptoberfläche (II), eine Beschichtung (20) mit einer ersten Hauptoberfläche (III) und einer zweiten Hauptoberfläche (IV), wobei die Beschichtung (20) mit der ersten Hauptoberfläche (III) auf der zweiten Hauptoberfläche (II) der ersten Scheibe (1) angeordnet ist, mindestens eine Lichtquelle (4), wobei die Lichtquelle (4) derart mit der Beschichtung (20) verbunden ist, dass Licht der Lichtquelle (4) in die Beschichtung (20) eingekoppelt werden kann, und mindestens ein Lichtauskopplungsmittel (6), zum Auskoppeln von Licht aus der Beschichtung (20) über mindestens eine der Hauptoberfläche (III, IV) der Beschichtung (20), wobei für mindestens eine Wellenlänge A eines Lichts der Lichtquelle (4) ein Brechungsindex n2o der Beschichtung (20) größer ist als ein Brechungsindex m der ersten Scheibe (1), und ein Extinktionskoeffizient k2o der Beschichtung (20) kleiner ist als ein Extinktionskoeffizient ki der ersten Scheibe (1). Verglasung (101) nach Anspruch 1 , wobei die Lichtquelle (4) derart mit der Beschichtung verbunden ist, dass das Licht der Lichtquelle (4) unter einem Winkel 0 größer oder gleich dem Winkel 0totai der Totalreflektion in der Beschichtung (20) eingekoppelt werden kann. Verglasung (101) nach Anspruch 1 oder 2, wobei die Lichtquelle (4) geeignet ist, Licht mit mindestens einer Wellenlänge A im Wellenlängen-Bereich des sichtbaren Lichts (VIS), bevorzugt im Bereich von 380 nm bis 780 nm, auszustrahlen. Verglasung (101) nach einem der Ansprüche 1 bis 3, wobei der Extinktionskoeffizient k2o um einen Faktor von mindestens 1.5, bevorzugt von mindestens 2, besonders bevorzugt von mindestes 5 und insbesondere von mindestens 10 kleiner ist als der Extinktionskoeffizient ki. Verglasung (101) nach einem der Ansprüche 1 bis 4, wobei der Extinktionskoeffizient k2o bei einer Wellenlänge A von 550 nm kleiner oder gleich 1*10-6, bevorzugt kleiner oder gleich 1*10-7 und besonders bevorzugt kleiner oder gleich 1*10-8 beträgt. Verglasung (101) nach einem der Ansprüche 1 bis 5, wobei die Beschichtung (20) eine Dicke d2o von mindestens der Wellenlänge A des Lichts der Lichtquelle (4), bevorzugt von 380 nm bis 10 pm, besonders bevorzugt von 780 nm bis 5 pm und insbesondere von 800 nm bis 2 pm aufweist. Verglasung (101) nach einem der Ansprüche 1 bis 6, wobei die Beschichtung (20) durch ein Dünnschichtabscheideverfahren auf der ersten Scheibe (1) abgeschieden ist, bevorzugt durch Claims Glazing (101) comprising: at least one first pane (1) with a first main surface (I) and a second main surface (II), a coating (20) with a first main surface (III) and a second main surface (IV), wherein the coating (20) with the first main surface (III) is arranged on the second main surface (II) of the first pane (1), at least one light source (4), wherein the light source (4) is connected to the coating (20) in such a way that light from the light source (4) can be coupled into the coating (20), and at least one light coupling means (6) for coupling light out of the coating (20) via at least one of the main surfaces (III, IV) of the coating (20), wherein for at least one wavelength A of a light from the light source (4) a refractive index n2o of the coating (20) is greater than a refractive index m of the first pane (1), and an extinction coefficient k2o of the coating (20) is smaller than an extinction coefficient ki of the first pane (1). Glazing (101) according to claim 1, wherein the light source (4) is connected to the coating in such a way that the light from the light source (4) can be coupled into the coating (20) at an angle 0 greater than or equal to the angle 0 to tai of total reflection. Glazing (101) according to claim 1 or 2, wherein the light source (4) is suitable for emitting light with at least one wavelength A in the wavelength range of visible light (VIS), preferably in the range from 380 nm to 780 nm. Glazing (101) according to one of claims 1 to 3, wherein the extinction coefficient k2o is smaller than the extinction coefficient ki by a factor of at least 1.5, preferably at least 2, particularly preferably at least 5 and in particular at least 10. Glazing (101) according to one of claims 1 to 4, wherein the extinction coefficient k2o at a wavelength A of 550 nm is less than or equal to 1*10 -6 , preferably less than or equal to 1*10 -7 and particularly preferably less than or equal to 1*10 -8 . Glazing (101) according to one of claims 1 to 5, wherein the coating (20) has a thickness d2o of at least the wavelength A of the light from the light source (4), preferably from 380 nm to 10 pm, particularly preferably from 780 nm to 5 pm and in particular from 800 nm to 2 pm. Glazing (101) according to one of claims 1 to 6, wherein the coating (20) is deposited on the first pane (1) by a thin-film deposition process, preferably by Kathodenzerstäubung oder magnetfeldunterstützte Kathodenzerstäubung, chemische Gasphasenabscheidung oder plasmagestützte chemische Gasphasenabscheidung, nasschemische Verfahren, wie Sol-Gel-Prozesse, insbesondere o Spray-Coating, o Dip-Coating, o Spin-Coating oder o Casting. Verglasung (101) nach einem der Ansprüche 1 bis 7, wobei die Beschichtung (20)Cathode sputtering or magnetic field-assisted cathode sputtering, chemical vapor deposition or plasma-assisted chemical vapor deposition, wet chemical processes such as sol-gel processes, in particular o spray coating, o dip coating, o spin coating or o casting. Glazing (101) according to one of claims 1 to 7, wherein the coating (20) Titanoxid, Titanium oxide, - Aluminiumoxid, Siliziumnitrid, Siliziumzirkonnitrid, oder Siliziumdioxid, enthält oder daraus besteht. Verglasung (101) nach einem der Ansprüche 1 bis 8, wobei der Brechungsindex n2o der Beschichtung (20) um mindestens 0.1 , bevorzugt um mindestens 0.2 und insbesondere um mindestens 0.2 bis 1.5, größer ist als der Brechungsindex m der ersten Scheibe (1). Verglasung (101) nach einem der Ansprüche 1 bis 9, wobei die Lichtquelle (4) eine Leuchtdiode, bevorzugt eine Organische Leuchtdiode, eine Laserdiode, eine Glühlampe und/oder eine Gasentladungslampe enthält oder daraus besteht. Verglasung (101) nach einem der Ansprüche 1 bis 10, wobei das Lichtauskopplungsmittel (6) zur Lichtauskopplung von in der Beschichtung (20) geleiteten Lichts, bevorzugt durch Streuung, bevorzugt diffuse Streuung, Reflexion, Brechung oder Beugung, an wenigstens einer der Hauptoberflächen (III, IV) der Beschichtung (20) ausgebildet ist. Verglasung (101) nach einem der Ansprüche 1 bis 11 , wobei das Lichtauskopplungsmittel (6) in die erste Hauptoberfläche (III) und/oder in die zweite Hauptoberfläche (IV) eingebracht ist, bevorzugt durch Laserstrukturierung, mechanische Strukturierung wie Sandstrahlen, oder durch Ätzen, und/oder mit der ersten Hauptoberfläche (III) und/oder mit der zweiten Hauptoberfläche (IV) der Beschichtung (20) stoffschlüssig verbunden ist, bevorzugt durch Aufdrucken oder Aufkleben einer Farbe, einer Paste oder von Partikeln, besonders bevorzugt durch lichtstreuende, lichtbrechende oder lichtreflektierende Partikel, und/oder innerhalb der Beschichtung (20) angeordnet ist, bevorzugt durch Partikel besonders bevorzugt durch lichtstreuende, lichtbrechende oder lichtreflektierende Partikel, Streuzentren und/oder Kavitäten innerhalb der Beschichtung (20), und/oder ein transparenter Körper (10) ist, der beispielsweise mit der zweiten Hauptoberfläche (IV) der Beschichtung (20), bevorzugt stoffschlüssig, verbunden ist, beispielsweise durch Verkleben, wobei der transparente Körper (10) bevorzugt a) eine strukturierte Kunststofffolie (12) oder Kunststoffplatte, besonders bevorzugt mit einer flächigen Anordnung von Mikroprismen wie einem Stufenprisma (11), oder b) eine transmissions-holographische Folie enthält oder draus besteht, und/oder ein reflektierender Körper (10) ist, der beispielsweise mit der zweiten Hauptoberfläche (III) Beschichtung (20), bevorzugt stoffschlüssig, verbunden ist, beispielsweise durch Verkleben, wobei der reflektierende Körper (10) bevorzugt a) eine strukturierte Kunststofffolie (12) oder Kunststoffplatte, besonders bevorzugt mit einer flächigen Anordnung von Mikroprismen wie einem Stufenprisma (11), oder b) eine reflexions-holographische Folie enthält oder draus besteht, und/oder ein transparenter Körper (10) ist, der beispielsweise mit der zweiten Hauptoberfläche (IV) der Beschichtung (20), bevorzugt stoffschlüssig, verbunden ist, beispielsweise durch Verkleben, wobei der transparente Körper (10) bevorzugt eine strukturierte, besonders bevorzugt eine diffus-streuende oder, beispielsweise durch Mikroprismen, gerichtet-brechende, transparente Schicht, Kunststofffolie (12) oder Kunststoff platte aufweist oder daraus besteht und deren Brechungsindex nw wesentlich größer als m ist, insbesondere um mindestens +0,2 oder um mindestens +0,5. Verglasung (101) nach einem der Ansprüche 1 bis 12, wobei eine zweite Scheibe (2) durch mindestens eine Zwischenschicht (3) mit der ersten Hauptoberfläche (I) der erste Scheibe (1) verbunden ist und bevorzugt die Zwischenschicht (3) mindestens eine thermoplastische Kunststofffolie, besonders bevorzugt aus Polyvinylbutyral, enthält oder daraus besteht und insbesondere die Zwischenschicht (3) klar, getönt oder gefärbt ist. Verglasung (101) nach einem der Ansprüche 1 bis 13, wobei die erste Scheibe (1) und/oder die zweite Scheibe (2) Glas, bevorzugt Flachglas, besonders bevorzugt Kalk-Natron-Glas, Borosilikatglas oder Quarzglas, oder Polymere, bevorzugt Polyethylen, Polypropylen, Polycarbonat, Polymethylmethacrylat und/oder Gemische oder Kombinationen davon enthält oder daraus besteht und besonders bevorzugt die erste Scheibe (1) und/oder die zweite Scheibe (2) aus Klarglas bestehen oder getönt oder gefärbt sind. Verglasung (101) nach einem der Ansprüche 1 bis 14, wobei die Lichtquelle (4) unmittelbar oder über ein Lichteinkopplungsmittel (5) mit der Beschichtung (20) verbunden ist und insbesondere die Lichtquelle (4) derart ausgebildet, dass das Licht (4) nicht in die erste Scheibe (1) und/oder nicht in die zweite Scheibe eingekoppelt wird. Verfahren zur Herstellung einer Verglasung (101) nach einem der Ansprüche 1 bis 15, wobei - contains or consists of aluminum oxide, silicon nitride, silicon zirconium nitride, or silicon dioxide. Glazing (101) according to one of claims 1 to 8, wherein the refractive index n2o of the coating (20) is at least 0.1, preferably at least 0.2, and in particular at least 0.2 to 1.5, greater than the refractive index m of the first pane (1). Glazing (101) according to one of claims 1 to 9, wherein the light source (4) contains or consists of a light-emitting diode, preferably an organic light-emitting diode, a laser diode, an incandescent lamp and/or a gas discharge lamp. Glazing (101) according to one of claims 1 to 10, wherein the light coupling means (6) is designed for coupling out light guided in the coating (20), preferably by scattering, preferably diffuse scattering, reflection, refraction or diffraction, on at least one of the main surfaces (III, IV) of the coating (20). Glazing (101) according to one of claims 1 to 11, wherein the light coupling means (6) is introduced into the first main surface (III) and/or into the second main surface (IV), preferably by laser structuring, mechanical structuring such as sandblasting, or by etching, and/or is integrally connected to the first main surface (III) and/or to the second main surface (IV) of the coating (20), preferably by printing or gluing on a color, a paste or particles, particularly preferably by light-scattering, light-refracting or light-reflecting particles, and/or is arranged within the coating (20), preferably by particles, particularly preferably by light-scattering, light-refracting or light-reflecting particles, scattering centers and/or cavities within the coating (20), and/or is a transparent body (10) which is, for example, integrally connected to the second main surface (IV) of the coating (20), preferably by gluing, wherein the transparent body (10) preferably has a) a structured Plastic film (12) or plastic plate, particularly preferably with a planar arrangement of microprisms such as a step prism (11), or b) contains or consists of a transmission holographic film, and/or is a reflective body (10) which is connected, for example, to the second main surface (III) coating (20), preferably in a material-locking manner, for example by gluing, wherein the reflective body (10) preferably contains or consists of a) a structured plastic film (12) or plastic plate, particularly preferably with a planar arrangement of microprisms such as a step prism (11), or b) a reflection-holographic film, and/or is a transparent body (10) which is connected, for example, to the second main surface (IV) of the coating (20), preferably in a material-locking manner, for example by gluing, wherein the transparent body (10) preferably has or consists of a structured, particularly preferably a diffusely scattering or, for example by microprisms, directionally refracting, transparent layer, plastic film (12) or plastic plate and whose refractive index nw is significantly greater than m, in particular by at least +0.2 or by at least +0.5. Glazing (101) according to one of claims 1 to 12, wherein a second pane (2) is connected to the first main surface (I) of the first pane (1) by at least one intermediate layer (3), and preferably the intermediate layer (3) contains or consists of at least one thermoplastic film, particularly preferably made of polyvinyl butyral, and in particular the intermediate layer (3) is clear, tinted or colored. Glazing (101) according to one of claims 1 to 13, wherein the first pane (1) and/or the second pane (2) contains or consists of glass, preferably flat glass, particularly preferably soda-lime glass, borosilicate glass or quartz glass, or polymers, preferably polyethylene, polypropylene, polycarbonate, polymethyl methacrylate and/or mixtures or combinations thereof, and particularly preferably the first pane (1) and/or the second pane (2) consist of clear glass or are tinted or colored. Glazing (101) according to one of claims 1 to 14, wherein the light source (4) is connected to the coating (20) directly or via a light coupling means (5) and in particular the light source (4) is designed such that the light (4) is not coupled into the first pane (1) and/or not into the second pane. Method for producing a glazing (101) according to one of claims 1 to 15, wherein S1 : die erste Scheibe (1) bereitgestellt wird und S1 : the first disc (1) is provided and S2: die Beschichtung (20) auf der ersten Hauptoberfläche (I) der ersten Scheibe (1) durch ein Dünnschichtabscheideverfahren abgeschieden wird. Verfahren nach Anspruch 16, wobei vor dem zweiten Verfahrensschritt (S2), eine Lichtquelle (4), bevorzugt eine Leuchtdiode, bevorzugt eine Organische Leuchtdiode, oder eine Laserdiode auf der zweiten Hauptoberfläche (II) der ersten Scheibe (1) derart angeordnet wird, dass nach dem Abscheiden der Beschichtung (20) im zweiten Verfahrensschritt (S2), Licht in die Beschichtung (20) eingekoppelt werden kann, bevorzugt parallel zu einer Erstreckungsrichtung der Beschichtung (20) und bevorzugt unter einem Winkel der Totalreflektion in der Beschichtung (20). Verwendung der Verglasung (1) nach einen der Ansprüche 1 bis 15 in Fortbewegungsmitteln für den Verkehr auf dem Lande, in der Luft oder zu Wasser, insbesondere in Kraftfahrzeugen beispielsweise als Windschutzscheibe, Heckscheibe, Seitenscheiben und/oder Dachscheibe sowie als funktionales Einzelstück, und als Einbauteil in Möbeln, Geräten und Gebäuden, oder als Gebäudeverglasung im Baubereich oder Architekturbereich im Innenbereich oder Außenbereich. S2: the coating (20) is deposited on the first main surface (I) of the first pane (1) by a thin-film deposition process. Method according to claim 16, wherein before the second method step (S2), a light source (4), preferably a light-emitting diode, preferably an organic light-emitting diode, or a laser diode is arranged on the second main surface (II) of the first pane (1) in such a way that after the deposition of the coating (20) in the second method step (S2), light can be coupled into the coating (20), preferably parallel to an extension direction of the coating (20) and preferably at an angle of total reflection in the coating (20). Use of the glazing (1) according to one of claims 1 to 15 in means of transport for traffic on land, in the air or on water, in particular in motor vehicles, for example as a windshield, rear window, side windows and/or roof window and as a functional individual piece, and as a built-in part in furniture, equipment and buildings, or as building glazing in the construction or architecture sector, indoors or outdoors.
PCT/EP2023/085025 2022-12-12 2023-12-11 Illuminable glazing Ceased WO2024126326A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP23820943.1A EP4633947A1 (en) 2022-12-12 2023-12-11 Illuminable glazing
CN202380085747.9A CN120379835A (en) 2022-12-12 2023-12-11 Lighting glazing

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP22212754 2022-12-12
EP22212754.0 2022-12-12

Publications (1)

Publication Number Publication Date
WO2024126326A1 true WO2024126326A1 (en) 2024-06-20

Family

ID=84488470

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2023/085025 Ceased WO2024126326A1 (en) 2022-12-12 2023-12-11 Illuminable glazing

Country Status (3)

Country Link
EP (1) EP4633947A1 (en)
CN (1) CN120379835A (en)
WO (1) WO2024126326A1 (en)

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008047442A1 (en) 2006-10-20 2008-04-24 Miraial Co., Ltd. Surface light source device
WO2010049638A1 (en) 2008-10-27 2010-05-06 Saint-Gobain Glass France Light-emitting diode module for a vehicle, and productions
JP2011086547A (en) 2009-10-16 2011-04-28 Mitsui Chemicals Inc Light-distributing system
WO2013053629A1 (en) 2011-10-10 2013-04-18 Saint-Gobain Glass France Disk having an illuminated switch surface
WO2013110885A1 (en) 2012-01-26 2013-08-01 Saint-Gobain Glass France Illuminating glazing unit for a vehicle
WO2014060409A1 (en) 2012-10-17 2014-04-24 Webasto SE Vehicle glazing
JP2015043321A (en) 2013-08-26 2015-03-05 アドヴァンスト オプトエレクトロニック テクノロジー インコーポレイテッドＡｄｖａｎｃｅｄ Ｏｐｔｏｅｌｅｃｔｒｏｎｉｃ Ｔｅｃｈｎｏｌｏｇｙ Ｉｎｃ． Light emitting diode light source module
WO2015095288A2 (en) 2013-12-19 2015-06-25 Corning Incorporated Textured surfaces for display applications
WO2018178591A1 (en) 2017-03-31 2018-10-04 Saint-Gobain Glass France Illuminating glazing
WO2019105855A1 (en) 2017-11-30 2019-06-06 Saint-Gobain Glass France Laminated pane with an integrated electrical attachment part
WO2022096365A1 (en) 2020-11-05 2022-05-12 Saint-Gobain Glass France Glazing
WO2022218741A1 (en) 2021-04-15 2022-10-20 Saint-Gobain Glass France Illuminable glazing

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008047442A1 (en) 2006-10-20 2008-04-24 Miraial Co., Ltd. Surface light source device
WO2010049638A1 (en) 2008-10-27 2010-05-06 Saint-Gobain Glass France Light-emitting diode module for a vehicle, and productions
JP2011086547A (en) 2009-10-16 2011-04-28 Mitsui Chemicals Inc Light-distributing system
WO2013053629A1 (en) 2011-10-10 2013-04-18 Saint-Gobain Glass France Disk having an illuminated switch surface
WO2013110885A1 (en) 2012-01-26 2013-08-01 Saint-Gobain Glass France Illuminating glazing unit for a vehicle
WO2014060409A1 (en) 2012-10-17 2014-04-24 Webasto SE Vehicle glazing
JP2015043321A (en) 2013-08-26 2015-03-05 アドヴァンスト オプトエレクトロニック テクノロジー インコーポレイテッドＡｄｖａｎｃｅｄ Ｏｐｔｏｅｌｅｃｔｒｏｎｉｃ Ｔｅｃｈｎｏｌｏｇｙ Ｉｎｃ． Light emitting diode light source module
WO2015095288A2 (en) 2013-12-19 2015-06-25 Corning Incorporated Textured surfaces for display applications
WO2018178591A1 (en) 2017-03-31 2018-10-04 Saint-Gobain Glass France Illuminating glazing
WO2019105855A1 (en) 2017-11-30 2019-06-06 Saint-Gobain Glass France Laminated pane with an integrated electrical attachment part
WO2022096365A1 (en) 2020-11-05 2022-05-12 Saint-Gobain Glass France Glazing
WO2022218741A1 (en) 2021-04-15 2022-10-20 Saint-Gobain Glass France Illuminable glazing

Also Published As

Publication number Publication date
CN120379835A (en) 2025-07-25
EP4633947A1 (en) 2025-10-22

Similar Documents

Publication Publication Date Title
EP4241016A1 (en) Glazing
EP4323692A1 (en) Illuminable glazing
DE202008003804U1 (en) Composite substrate member
DE202022105849U1 (en) Heated laminated pane with a coating based on a photothermal material
DE202022100518U1 (en) glazing
WO2023169736A1 (en) Illuminated composite pane with a reflective edge coating
DE202022101100U1 (en) Glazing for signal transmission
WO2024126326A1 (en) Illuminable glazing
DE102015103660A1 (en) Lighting device with a light guide plate
WO2024165247A1 (en) Illuminable glazing with improved light coupling
WO2024125860A1 (en) Illuminated glazing element with a coated reflective structure for coupling in light
EP4469274B1 (en) Illuminable glazing
DE202022106921U1 (en) Glazing element with a light-conducting transparent layer
DE202023002816U1 (en) Composite pane with reflective element
WO2025036803A1 (en) Composite pane for an illuminatable glazing element
WO2025119574A1 (en) Pane for a glazing which can be illuminated three-dimensionally
EP4469273B1 (en) Illuminable glazing
WO2025119575A1 (en) Composite pane for a glazing which can be illuminated three-dimensionally
WO2025067766A1 (en) Illuminated glazing element with emissivity-reducing coating
WO2024231137A1 (en) Method for producing an illuminated laminated pane having a reflective structure for the incoupling of light
EP4486567A1 (en) Illuminable glazing
EP4587265A1 (en) Illuminable glazing having multi-layer light coupling means
DE202023002747U1 (en) Illuminated glazing
DE202024002567U1 (en) Glazing unit with electronic component
WO2025219042A1 (en) Composite pane arrangement having a light source and a light guide

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23820943

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 202380085747.9

Country of ref document: CN

WWE Wipo information: entry into national phase

Ref document number: 2023820943

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2023820943

Country of ref document: EP

Effective date: 20250714

WWP Wipo information: published in national office

Ref document number: 202380085747.9

Country of ref document: CN

WWP Wipo information: published in national office

Ref document number: 2023820943

Country of ref document: EP