WO2025219042A1 - Composite pane arrangement having a light source and a light guide - Google Patents
Composite pane arrangement having a light source and a light guideInfo
- Publication number
- WO2025219042A1 WO2025219042A1 PCT/EP2025/058389 EP2025058389W WO2025219042A1 WO 2025219042 A1 WO2025219042 A1 WO 2025219042A1 EP 2025058389 W EP2025058389 W EP 2025058389W WO 2025219042 A1 WO2025219042 A1 WO 2025219042A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light
- pane
- composite pane
- composite
- light guide
- 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.)
- Pending
Links
Classifications
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- 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
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- 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
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- 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
- B32B17/10247—Laminated safety glass or glazing containing decorations or patterns for aesthetic reasons
- B32B17/10256—Laminated safety glass or glazing containing decorations or patterns for aesthetic reasons created by printing techniques
- B32B17/10266—Laminated safety glass or glazing containing decorations or patterns for aesthetic reasons created by printing techniques on glass pane
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- 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
- B32B17/10293—Edge features, e.g. inserts or holes
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- 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
- B32B17/10339—Specific parts of the laminated safety glass or glazing being colored or tinted
- B32B17/10348—Specific parts of the laminated safety glass or glazing being colored or tinted comprising an obscuration band
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- 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
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- 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
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- 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
- B32B17/10697—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 being cross-linked
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
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- 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
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
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- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
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- B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
- B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
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- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
- B60Q3/20—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors for lighting specific fittings of passenger or driving compartments; mounted on specific fittings of passenger or driving compartments
- B60Q3/208—Sun roofs; Windows
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
- B60Q3/60—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects
- B60Q3/62—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects using light guides
- B60Q3/64—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects using light guides for a single lighting device
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- 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
- G02B6/0005—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 of the fibre type
- G02B6/0008—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 of the fibre type the light being emitted at the end of the fibre
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- B32B2274/00—Thermoplastic elastomer material
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- B32B2307/00—Properties of the layers or laminate
- B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
- B32B2307/202—Conductive
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
- B32B2307/402—Coloured
- B32B2307/4023—Coloured on the layer surface, e.g. ink
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- B32B2307/41—Opaque
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- B32B2307/412—Transparent
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- B32B2307/416—Reflective
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- B32B2307/70—Other properties
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- B32B2307/737—Dimensions, e.g. volume or area
- B32B2307/7375—Linear, e.g. length, distance or width
- B32B2307/7376—Thickness
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- B32B2605/00—Vehicles
- B32B2605/08—Cars
Definitions
- the invention relates to a composite pane assembly, in particular a composite pane assembly for a vehicle, as well as a system and a vehicle comprising the composite pane assembly.
- the composite pane assembly according to the invention can be designed, for example, as a roof pane of a vehicle.
- Laminated glass consists of at least one outer pane, one inner pane, and an adhesive interlayer that connects the outer pane to the inner pane.
- Typical interlayers are polyvinyl butyral films, which, in addition to their adhesive properties, offer high toughness and high acoustic damping.
- the interlayer prevents the laminated glass pane from shattering in the event of damage.
- the laminated glass pane only cracks but remains dimensionally stable.
- Modern vehicles often include a composite pane serving as a roof window, consisting of two glass panes bonded by a thermoplastic interlayer.
- the individual panes of a composite pane are bent congruently to achieve a uniform curvature.
- One or more thermoplastic composite films are inserted between the congruently bent panes. These films melt during lamination, creating a thermoplastic interlayer of a constant thickness.
- Lighting can provide an attractive viewing experience in vehicles. To implement accent or functional lighting in a vehicle, the lighting must be integrated into vehicle components.
- the current state of the art involves a multitude of individual light sources consisting of multiple low-power light sources. Installing light sources inevitably requires a lot of space, as their dimensions require them to be installed as an additional component in the vehicle.
- WO 2010/049638 A1 discloses the coupling of light into a glass pane via a side surface.
- the point-like coupling of light makes homogeneous illumination of the entire pane difficult.
- laminated glazing units with light sources wherein the light emitted by the light source is guided through the laminated glazing unit via a glass substrate or a polymeric intermediate layer.
- Such a laminated glazing unit has a light introduction surface for introducing the light emitted by the light source, as well as a A light extraction surface is used to extract the light.
- WO 2019/170330 A1 discloses a composite pane with electrically controllable optical properties, which comprises an outer pane, a first intermediate layer, a second intermediate layer and an inner pane, wherein a light guide is arranged at least partially between the outer pane and the inner pane.
- WO 2005/054915 A1 discloses a light-guiding arrangement for vehicle roofs, comprising two glass panes with an intermediate layer.
- the light-guiding arrangement comprises light-coupling means that couple light into the intermediate layer, as well as a recess for accommodating the light-coupling means.
- the present invention is based on the object of providing an improved composite pane arrangement with a light source which enables particularly efficient light coupling into a composite pane and a flexible arrangement of the light source.
- the composite pane arrangement with a light source according to the invention comprises at least:
- a light guide arranged partially between the outer pane and the inner pane, wherein the light source is arranged at a first end of the light guide arranged outside the composite pane and a second end arranged inside the composite pane
- the end of the first light guide is provided with a light coupling means for coupling the light emitted by the light source into the composite pane.
- the purpose of the light guide is to position the light source not directly on or in the composite pane, but to make the arrangement of the light source as flexible as possible, whereby the light coupling is particularly efficient.
- the light coupling means is suitable for deflecting a portion of the light arriving from the light source in transmission through scattering, reflection, refraction, or diffraction.
- the light coupling means can comprise a transparent body that is connected to the light guide or integrated into the light guide.
- the transparent body can comprise one or more prisms.
- the light guide has a length of at least 0.1 m outside the composite pane.
- the light guide can be spaced from the composite pane at a distance of 0.1 m to 2 m.
- the light source is not arranged directly on the composite pane, it can be positioned flexibly and adapted to the installation situation of the composite pane arrangement.
- the light source in particular a high-performance LED, not only generates light but also unwanted heat.
- the composite pane is not heated up additionally.
- a further advantage of such an arrangement is that a defective light source can be easily replaced without damaging the composite pane. Since the light source does not have to be integrated into the composite pane, large light sources, i.e. light sources with large external dimensions, can be used.
- such a composite pane arrangement enables efficient light coupling, since the light is guided through the light guide directly into the composite pane and can be emitted at a predetermined location.
- outer pane and inner pane serve only to distinguish between a first pane and a second pane.
- the outer pane preferably, but not necessarily, faces the exterior of the laminated pane, and the inner pane the interior.
- the outer pane and inner pane are connected to each other via at least one intermediate layer.
- the composite pane according to the invention can be designed, for example, as a roof pane of a vehicle.
- the optical fiber comprises, in particular, a core and a cladding surrounding the core, the core having a higher refractive index than the cladding.
- the optical fiber preferably has fibers made of glass and/or plastic as the core.
- the core By forming the core as a fiber, in particular of glass and/or plastic, the light guide can be designed flexibly.
- the optical fiber is preferably in the form of a cable, with the longer of its dimensions being referred to as the length and the shorter of its dimensions being referred to as the width.
- the light guide can comprise a liquid, particularly a gel, as a transport medium.
- a liquid or a gel as a transport medium offers a higher light output than with other light guides.
- the light guide is preferably flexible and/or bendable. By using the flexible light guide to guide the light, the light can advantageously be transported to any position on the composite pane with little effort. This makes the design of the light guide within the composite pane flexible and particularly easy to implement.
- the light guide can be at least partially light-scattering and/or transparent.
- the light guide can be optically transparent.
- the light guide has a lateral surface connecting the first end and the second end, with the light in the light guide exiting at least partially through the lateral surface of the light guide.
- the light guide can have a tubular sheath that is at least partially transparent or, alternatively, can have no sheath. The light can be emitted over an extended section of the light guide or at a point.
- the light guide is arranged between the outer pane and the inner pane.
- a light-reflecting layer is arranged between the inner pane and the intermediate layer.
- the second end of the light guide, arranged within the composite pane, is provided via the light coupling means for coupling the light emitted by the light source into the inner pane, wherein the refractive index of the inner pane is greater than the refractive index of the light-reflecting layer.
- the light-reflecting layer can be formed as a coating on an outer surface of the inner pane facing the intermediate layer.
- refractive indices are generally specified relative to a wavelength of 550 nm [nanometers].
- the refractive index is fundamentally independent of the measurement method; it can be determined, for example, using ellipsometry. Ellipsometers are commercially available.
- the same measurement method is used as for determining the refractive index of the light-reflecting layer or a light-conducting layer.
- a light-guiding layer can be arranged between the inner pane and the intermediate layer.
- the second end of the first light guide, arranged within the composite pane, can be provided via the light coupling means for coupling the light emitted by the light source into the light-guiding layer, wherein the refractive index of the light-guiding layer is greater than the refractive index of the inner pane.
- the light-guiding layer can be formed as a light-guiding film, a light-guiding coating, or a thin glass pane, wherein the light-guiding layer has a thickness of, for example, 1000 pm or 500 pm [micrometers] or less.
- At least one light extraction means is provided for extracting light from the first inner pane or from the light-conducting layer.
- the one or more light extraction means can be mounted on or in at least one of the surfaces, preferably on or in an inner surface of the inner pane.
- the light-guiding layer can be formed as a light-guiding film, a light-guiding coating, or a thin glass pane, with the light-guiding layer having a thickness of 1000 ⁇ m or less.
- the use of the light-guiding layer can be used to create attractive accent lighting, for example, in a vehicle.
- the composite pane can comprise multiple light-guiding layers.
- the light guide can have a diameter that corresponds to the thickness of the intermediate layer. This ensures a particularly good connection between the light guide and the composite pane and a particularly effective light coupling.
- the intermediate layer has a recessed area in which a portion of the light guide is arranged.
- the light guide is securely fixed within the composite pane.
- the composite pane comprises an opaque cover layer on a surface (I, II) of the outer pane.
- the cover layer and the section of the light guide overlap in the viewing direction through the composite pane.
- the opaque cover layer can be arranged in a peripheral edge region, in particular on the inner surface (II) of the outer pane.
- the cover layer is also referred to as a cover print or black print.
- the cover print is formed from a printing ink.
- the cover layer can be formed from an opaque enamel, preferably applied as a screen print or digital print.
- the enamel can contain glass frits and/or mineral frits and optionally at least one pigment, preferably glass frits and/or mineral frits based on oxides selected from boron, bismuth, zinc, silicon, aluminum, and sodium.
- the pigment ensures the opacity of the cover layer.
- the pigment can be a black pigment, for example, carbon black, aniline black, bone black, iron oxide black, spinel black, and/or graphite.
- the cover layer can be formed as a particularly black adhesive tape or a base layer, a so-called primer.
- the composite pane can have multiple cover layers.
- the cover layers can have a layer thickness of 5 ⁇ m to 50 ⁇ m, particularly preferably 8 ⁇ m to 25 ⁇ m.
- the light source comprises at least one light-emitting diode (LED), one organic light-emitting diode (OLED), one transparent organic light-emitting diode (TOLED), and/or at least one laser diode.
- LED light-emitting diode
- OLED organic light-emitting diode
- TOLED transparent organic light-emitting diode
- laser diode has the advantage of being particularly powerful and efficient. This allows for accent lighting to be created at multiple locations on the composite pane.
- the light source can include a cooling device for cooling the light source. This allows high-performance LEDs to be used as the light source, as these require active cooling during operation.
- the light source can emit colored or white light. Preferred light colors are white, yellow, red (due to their strong signaling effect), green (due to the human eye's high sensitivity to the green color spectrum), and blue.
- a composite pane arrangement can comprise one or more light guides and light sources.
- all light guides are coupled together, or each light guide is individually coupled, to at least one light source.
- the light guide(s) can be arranged in any technically feasible form within the composite pane, for example, in the edge region, in the center, straight, curved, or as lettering or a symbol.
- the use of a flexible light guide enables virtually wrinkle-free layering within the composite pane, even with a complexly curved pane geometry.
- the composite pane arrangement according to the invention provides attractive accent lighting through the use of a light guide in the composite pane. Furthermore, the integration of the light guide into the composite pane results in enormous space savings, as an additional lighting module directly on or in the composite pane is no longer required.
- the outer panes and the inner pane preferably contain glass, particularly preferably flat glass, float glass, quartz glass, borosilicate glass, soda-lime glass, or clear plastics, particularly preferably rigid clear plastics, for example, polycarbonate or polymethyl methacrylate.
- the panes can be clear and optically transparent or tinted or colored.
- the thickness of the panes can vary widely and thus be adapted to the requirements of the individual case.
- the thickness of each pane is preferably from 0.5 mm to 15 mm, particularly preferably from 1 mm to 5 mm.
- at least the inner pane and preferably also the outer pane are made of clear glass.
- “transparent” means that the total transmission of the laminated pane complies with the legal requirements of the European Union for windshields and front side windows and preferably has a visible light transmittance of more than 70%, and in particular more than 75%.
- "transparent” can also mean 10% to 70% light transmission.
- "opaque” means a light transmission of less than 15%, preferably less than 5%, and in particular 0%.
- the composite pane can have any three-dimensional shape.
- the composite pane is preferably flat or slightly or strongly curved in one or more directions of the room.
- the composite pane can have a functional element with electrically controllable optical properties embedded in the intermediate layer.
- the functional element can be simply inserted between a first intermediate layer and a second intermediate layer during the manufacture of the composite pane.
- the first intermediate layer and the second intermediate layer contain at least one thermoplastic polymer, for example, ethylene-vinyl acetate, polyvinyl butyral, polyurethane, and/or mixtures and/or copolymers thereof.
- the thickness of the thermoplastic bonding films is preferably between 0.05 mm and 2 mm, for example, 0.38 mm or 0.76 mm. The bonding is effected under the influence of heat, vacuum, and/or pressure using conventional methods.
- the functional element is a PDLC (polymer dispersed liquid crystal) functional element.
- the PDLC functional element has an active layer containing randomly aligned liquid crystals. This leads to strong scattering of the light passing through the active layer.
- the PDLC functional element also has two surface electrodes. If an electrical voltage is applied to the surface electrodes, the liquid crystals align in one direction, and the transmission of light through the active layer is significantly increased. Without an applied electrical voltage, the PDLC functional element is characterized by a white, milky appearance, which serves as a visual barrier.
- the functional element is an SPD (suspended particle device).
- the active layer contains suspended particles, which are preferably embedded in a viscous matrix. The absorption of light by the active layer can be changed by applying a voltage to the surface electrodes, which leads to a change in the orientation of the suspended particles.
- the functional element is arranged centrally in the composite pane. The functional element can be electrically controlled via contact elements.
- a third intermediate layer can be provided to reflect infrared radiation.
- the third intermediate layer is arranged between the first intermediate layer and the second intermediate layer.
- the third intermediate layer can comprise polyvinyl butyral, ethylene-vinyl acetate, polyurethane, and/or mixtures and/or copolymers thereof, and a polymer film.
- a layer of polyvinyl butyral (PVB) with a polyethylene terephthalate (PET) film is used.
- the PET film is particularly advantageous with regard to the stability of the third intermediate layer.
- the PVB films contain at least one thermoplastic polymer, for example, ethylene-vinyl acetate, polyvinyl butyral, polyurethane, and/or mixtures and/or copolymers thereof.
- the thickness of the thermoplastic PVB film is preferably from 0.05 mm to 2 mm, for example, 0.38 mm or 0.76 mm.
- the PET film can have a transparent, infrared-reflecting coating.
- the infrared-reflecting coating then contains silver, titanium dioxide, aluminum nitride, or zinc oxide, with silver being preferred.
- the coating can have several electrically conductive layers separated from one another by at least one dielectric layer.
- the infrared-reflecting and conductive coating can, for example, contain two, three, or four electrically conductive layers.
- the infrared-reflecting coating can additionally have dielectric layers that serve, for example, to regulate the sheet resistance, provide corrosion protection, or reduce reflection. Such an infrared-reflecting coating is preferably applied to a surface facing the first intermediate layer.
- a further aspect of the invention comprises a system with a composite pane arrangement according to the invention comprising a light control of the light source, for example as a windshield, rear window, side window and/or roof window, in buildings, in particular in the access area, window area, roof area or facade area, as a built-in part in furniture and appliances.
- a light control of the light source for example as a windshield, rear window, side window and/or roof window, in buildings, in particular in the access area, window area, roof area or facade area, as a built-in part in furniture and appliances.
- a further aspect of the invention comprises a vehicle, in particular a passenger car, with a composite pane arrangement according to the invention.
- Figure 1 is a cross-sectional view through the inventive
- Figure 2A is a cross-sectional view through a first embodiment of a
- Figure 2B is a cross-sectional view through a second embodiment of the
- Figure 2C is a cross-sectional view through a third embodiment of the
- Figure 3 is a cross-sectional view through a further development of the composite pane arrangement according to the invention.
- Figure 4 is a cross-sectional view through a further embodiment of the composite pane arrangement according to the invention with a light-guiding layer.
- Figure 1 shows a cross-sectional view of a composite pane assembly 101 according to the invention, which comprises a composite pane 10 with a light guide 4 and a light source 5.
- the composite pane 10 is designed as a roof pane of a passenger car.
- the composite pane 10 contains an outer pane 1 with an inner surface II, an inner pane 2 with an outer surface III, and an intermediate layer 3, which connects the inner surface II of the outer pane 1 with the outer surface III of the inner pane 2 across the pane surface. Furthermore, a light-reflecting layer 9 is arranged between the intermediate layer 3 and the inner pane 2. The light 6 emitted by the light guide 4 propagates in the inner pane 2. The The light-reflecting layer 9 is intended to reflect the light 6 incident on the light-reflecting layer 9 back into the inner pane 2. The refractive index of the inner pane 2 is greater than the refractive index of the light-reflecting layer 9. The light rays propagating in the inner pane 2 are reflected into the inner pane 2. The light-reflecting layer 9 is formed as a coating on the outer surface III of the inner panes 2 facing the intermediate layer 3.
- the outer pane 1 and the inner pane 2 are made of soda-lime glass, for example, and each have a thickness of 1.5 mm.
- the intermediate layer 3 is thermoplastic and is formed, for example, as a multilayer film made of thermoplastic polymer (TPU), optically clear pressure-sensitive adhesive (PSA), polyvinyl butyral (PVB), or ethylene-vinyl acetate (EVA) with a total thickness of 0.86 mm, or comprise one or more of these materials.
- TPU thermoplastic polymer
- PSA optically clear pressure-sensitive adhesive
- PVB polyvinyl butyral
- EVA ethylene-vinyl acetate
- outer pane 1 and inner pane 2 can also be used as outer pane 1 and inner pane 2.
- thickness of outer pane 1 and inner pane 2 can be adapted to the respective application.
- the outer pane 1 can comprise tempered, semi-tempered, or non-tempered glass.
- the inner pane 1, the outer pane 2, and the intermediate layer 3 are, for example, clear (neither tinted nor colored).
- at least the inner pane 2 or also the outer pane 1 is made of clear glass.
- the intermediate layer 3 can comprise a tinted, in particular dark tint (gray, brown, blue) or colored PVB film.
- the outer pane 1 can be dark tinted (gray, brown, blue).
- the light guide 4 has a first end 4a located outside the composite pane 10 and a second end 4b located inside the composite pane.
- the light guide 4 is arranged in sections between the outer surface III of the inner pane 2 and the inner surface II of the outer pane 2.
- the intermediate layer 3 has a recess region in which a section of length B of the light guide 4 is arranged with the second end 4b.
- the light guide 4 has a diameter corresponding to the thickness of the intermediate layer 3.
- the light source 5 is arranged at the first end 4a of the light guide 4.
- the second end 4b arranged within the composite pane 10, is connected to the light guide 4 via a light coupling means 7. for coupling the light 6 emitted by the light source 5 into the composite pane 10.
- the second end 4b of the light guide 4 is light-conductingly connected or coupled to the inner pane 2 via the light coupling means 7.
- the light coupling means 7 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 7 can contain a transparent body that is connected to the light guide 4 or that is integrated into the light guide 4.
- the transparent body can comprise one or more prisms.
- the light guide 4 is designed in the form of a cable. Alternatively, the light guide 4 can be designed as a planar light guide.
- the light guide 4 has a length A of 0.1 m to 2.5 m outside the composite pane 10, for example 0.5 m, 1 m, 1.5 m or 2 m.
- the light source 5 can have a distance of 0.1 m to 2 m from the composite pane 10.
- the light guide 4 extends over a length B of 0.01 m to 2.5 m, for example 0.1 m, 0.5 m, 1 m or 2 m.
- the light source 5 consists, for example, of one or more light modules, light-emitting diodes (LEDs), OLEDs, TOLEDs, and/or laser diodes, which can couple light into the light guide 4, for example, via a reflector.
- LEDs light-emitting diodes
- OLEDs organic light-emitting diodes
- TOLEDs laser diodes
- the light source 5 can have a cooling device for actively cooling the light source 5.
- Figure 2A, Figure 2B and Figure 2C each show a cross-section through an embodiment of the light guide 4.
- the light guide 4 comprises a core 4e and a lateral surface 4c surrounding the core 4e, wherein the core 4e has a higher refractive index than the lateral surface 4c.
- the light guide 4 preferably has fibers made of glass and/or plastic as the core 4e. Because the light guide 4 has fibers, in particular made of glass and/or plastic, the light guidance can be designed flexibly.
- the light guide 4 can have a liquid as the core 4e, in particular a gel as the transport medium. The use of a liquid or a gel as the transport medium offers a higher light yield than with other light guides.
- the light guide 4 can be at least partially light-scattering and/or transparent, in particular optically transparent.
- the light guide 4 is preferably flexible, i.e. bendable. By using the flexible light guide 4 to guide light 6, the light 6 can advantageously be transported to any position of the composite pane 10 with little effort.
- the light guide 4 has a diameter d of, for example, 90 pm, 200 pm, or 380 pm and is suitable for emitting light 6 via the lateral surface 4c along its extended length and/or at the second end 4b.
- the light guide 4 can also consist of a single fiber with a thick diameter. The diameter of the individual fiber can then be in the millimeter range.
- the light 6 is coupled into the light guide 4 via an end face or lateral surface 4c of the light guide 4 at the first end 4a.
- the light source 5 is arranged at the first end 4a of the light guide 4.
- the light source 5 consists, for example, of one or more light-emitting diodes (LEDs), an OLED, a light-emitting diode (TOLED), and/or a laser diode, which can couple light into the light guide 4, for example, via a reflector.
- LEDs light-emitting diodes
- OLED an OLED
- TOLED light-emitting diode
- laser diode a laser diode
- the light guide 4 can scatter the light 6 at the second end 4b and/or at its lateral surface 4c along its extension length in the composite pane 10, so that the light guide 4 shines at the second end 4b and/or over its extension length.
- the emission of light 6 can extend over an extended section of the light guide 4 or can occur in a point-like manner.
- the light guide 4 has a round cross-section.
- Figure 2B shows a light guide 4 with a rectangular cross-section, and in Figure 2C, the light guide 4 is planar.
- Figure 3 shows a cross-sectional view through a further development of the composite pane arrangement 101 according to the invention, which comprises a composite pane 10 with the light guide 4 and the light source 5, as illustrated in Figure 1.
- the composite pane 10 also contains the outer pane 1 with the inner surface II, the inner pane 2 with the outer surface III, and the intermediate layer, which connects the inner surface II of the outer pane 1 to the outer surface III of the inner pane 2 across the pane surface.
- the outer pane 1 and the inner pane 2 are still made of soda-lime glass and each have a thickness of, for example, 1.5 mm or 1.1 mm.
- the intermediate layer 3 is thermoplastic and is designed, for example, as a multi-layer film made of polyvinyl butyral (PVB) with a total thickness of 0.86 mm.
- the outer pane 1 can comprise tempered, partially tempered, or non-tempered glass.
- the inner pane 1, the outer pane 2, and the intermediate layer 3 are, for example, clear (neither tinted nor colored).
- the intermediate layer 3 can comprise a tinted, in particular a dark tint (gray, brown, blue) or colored PVB film.
- the outer pane 1 can be dark tinted (gray, brown, blue).
- the light-reflecting layer 9 is arranged on the outer surface III of the inner pane 2.
- the light guide 4 is arranged with the second end 4b partially between the outer pane 1 and the inner pane 2.
- the light 6 is coupled into the inner pane 2 at the second end 4b via the light coupling means 7.
- the composite pane arrangement 101 from Figure 3 has a similar structure to the composite pane arrangement 101 from Figure 1.
- the composite pane 10 from Figure 3 has a plurality of light extraction means 8.
- the light extraction means 8 are mounted on or in an inner surface IV of the inner pane 2.
- Each light extraction means 8 couples the light 6 incident on the light extraction means 8 out of the inner pane 2.
- the light extraction means 8 can be formed from a coating material, defects, scattering centers, recesses in the surface IV, or as microcracks.
- the light extraction means 8 diffusely couple and distribute the light radiation 6 to be coupled out.
- the inner surface IV of the inner pane 2 can have a plurality of light extraction means 8 in places. Alternatively, the inner surface IV of the inner pane 2 can emit the light 6 pointwise or along the entire extension length.
- the composite pane 10 can be equipped with a functional element in the central region of the composite pane 10.
- the functional element can be a PDLC functional element embedded in the intermediate layer on all sides.
- the outer pane 1 is bonded to the inner pane 2 by lamination via the intermediate layers 3.
- the outer pane 1 and the The inner pane 2 is very rigid and unyielding at typical temperatures and pressures.
- the intermediate layer 3 is then plastic.
- the light guide 4 has a diameter d of 90 pm, 200 pm, or 380 pm, respectively.
- the light 6 is coupled into the light guide 4 via an end face of the light guide 4 at the first end 4a.
- the light source 5 is arranged at the first end 4a of the light guide 4.
- the light source 5 is, for example, a light module, one or more light-emitting diodes (LEDs), an OLED, a transparent light-emitting diode (TOLED), and/or a laser diode, as described in Figure 1.
- the composite pane 10 has a see-through area and an edge area.
- a cover layer 11 is arranged in the edge area.
- the composite pane 10 also comprises a circumferential pane edge.
- the cover layer 11 extends circumferentially along the entire circumferential pane edge. In this embodiment, the cover layer 11 extends like a frame in the edge area of the composite pane 101.
- the cover layer 11 frames the see-through area. In the see-through area, the composite pane 10 has no cover layer 11.
- the see-through area of the composite pane 101 makes up at least 70% of the surface of the composite pane 10.
- the cover layer 11 is opaque, dark, in particular black or gray.
- the cover layer 11 is formed from a printing ink.
- the cover layer 11 can be arranged at least partially along the circumferential edge of the pane.
- the width of the edge region can vary. In this embodiment, the width of the edge region is measured from the edge of the pane and is, for example, 10 mm, 50 mm, or 100 mm.
- the cover layer 11 and section B of the light guide 4 overlap in the viewing direction through the composite pane 10. The width of the cover layer 11 corresponds to the length B.
- Figure 4 shows a further embodiment of the composite pane arrangement 101 according to the invention, which comprises a composite pane 10 according to the invention with the light guide 4 and the light source 5, as illustrated in Figure 1.
- the composite pane 10 also contains the outer pane 1 with the inner surface II, the inner pane 2 with the outer surface III and the intermediate layer, which connects the inner surface II of the outer pane 1 with the outer surface III of the inner pane 2 across the pane surface.
- the outer pane 1 and the inner pane 2 are also made of soda-lime glass and each have a thickness of, for example, 1.5 mm or 1.1 mm.
- the intermediate layer 3 is thermoplastic and is formed, for example, as a multilayer film of polyvinyl butyral (PVB) with a total thickness of 0.86 mm.
- the composite pane arrangement 101 from Figure 4 has a similar structure to the composite pane arrangement 101 from Figure 1.
- the composite pane 10 from Figure 4 has a light-guiding layer 3c between the inner pane 2 and the intermediate layer 3.
- the second end 4b of the light guide 4, arranged within the composite pane 10 couples the light 6 emitted by the light source 5 into the light-guiding layer 3c via the light-coupling means 7.
- the light 6 emitted by the light guide 4 propagates in the light-guiding layer 3c.
- the refractive index of the light-guiding layer 3c is greater than the refractive index of the inner pane 2.
- the light-guiding layer 3c can be formed as a light-guiding film, a light-guiding coating, or a thin glass pane, wherein the light-guiding layer 3c has a thickness of 1000 pm, 500 pm, or less.
- the thin glass pane is made of clear glass.
- the composite pane 10 of Figure 4 has a plurality of light extraction means 8.
- Two light extraction means 8 are arranged on or in the inner surface of the light-guiding layer 3c.
- light extraction means 8 can be arranged on or in the outer surface III of the inner pane 2.
- Each light extraction means 8 extracts the light 6 incident on the light extraction means 8 from the light-guiding layer 3c.
- the light extraction means 8 can be formed from a coating material, defects, scattering centers, recesses, or as microcracks in the light-guiding layer 3c.
- the light extraction means 8 diffusely extract and distribute the light radiation 6 to be extracted.
- the light-guiding layer 3c can have a plurality of light extraction means 8 in some places.
- the light source 5 can emit single-color light 6 or various accents through colored light 6. Different colors allow attractive lighting of the vehicle to be clearly visible.
- the composite pane 10 can have the opaque covering layer 11 on a peripheral edge region of the inner surface II of the outer pane 1, for example a black print made of a ceramic paint which, when fired, forms a forms a firm connection with the glass surface II of the outer pane 1.
- the cover layer 11 has the task of concealing the view from the outside of the light guide 4 and the adhesive points with which the composite pane 10 is glued into a vehicle body.
- the light-guiding layer 3c need not be arranged along a side edge of the inner pane, or not only along it, but can be arranged arbitrarily, for example, over the entire surface III of the outer pane.
- one or more sections of the light-guiding layer 3c can be wave-shaped, e.g., in the form of a sine wave.
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Abstract
Description
Verbundscheibenanordnung mit Lichtquelle und Lichtleiter Composite pane arrangement with light source and light guide
Die Erfindung betrifft eine Verbundscheibenanordnung, insbesondere eine Verbundscheibenanordnung für ein Fahrzeug, sowie ein System und ein Fahrzeug mit der Verbundscheibenanordnung. Die erfindungsgemäße Verbundscheibenanordnung kann beispielsweise als Dachscheibe eines Fahrzeugs ausgebildet sein. The invention relates to a composite pane assembly, in particular a composite pane assembly for a vehicle, as well as a system and a vehicle comprising the composite pane assembly. The composite pane assembly according to the invention can be designed, for example, as a roof pane of a vehicle.
Verbundscheiben bestehen aus mindestens einer Außenscheibe, einer Innenscheibe und einer klebefähigen Zwischenschicht, die die Außenscheibe mit der Innenscheibe flächig verbindet. Typische Zwischenschichten sind dabei Polyvinylbutyralfolien, die neben ihren Klebeeigenschaften eine hohe Zähigkeit und eine hohe akustische Dämpfung aufweisen. Die Zwischenschicht verhindert den Zerfall der Verbundglasscheibe bei einer Beschädigung. Die Verbundscheibe bekommt lediglich Sprünge, bleibt aber formstabil. Laminated glass consists of at least one outer pane, one inner pane, and an adhesive interlayer that connects the outer pane to the inner pane. Typical interlayers are polyvinyl butyral films, which, in addition to their adhesive properties, offer high toughness and high acoustic damping. The interlayer prevents the laminated glass pane from shattering in the event of damage. The laminated glass pane only cracks but remains dimensionally stable.
Moderne Fahrzeuge umfassen häufig eine als Dachscheibe dienende Verbundscheibe, die aus zwei über eine thermoplastische Zwischenschicht verbundenen Glasscheiben besteht. Die einzelnen Scheiben einer Verbundscheibe werden kongruent gebogen, um eine gleichmäßige Biegung zu erzielen. Zwischen die kongruent gebogenen Scheiben werden eine oder mehrere thermoplastische Verbundfolien eingelegt, die bei Lamination der Anordnung aufschmelzen und die thermoplastische Zwischenschicht mit einer konstanten Dicke ergeben. Modern vehicles often include a composite pane serving as a roof window, consisting of two glass panes bonded by a thermoplastic interlayer. The individual panes of a composite pane are bent congruently to achieve a uniform curvature. One or more thermoplastic composite films are inserted between the congruently bent panes. These films melt during lamination, creating a thermoplastic interlayer of a constant thickness.
Beleuchtung kann als ein attraktives Betrachtungserlebnis in Fahrzeugen dienen. Um Akzentoder Funktionsbeleuchtung in einem Fahrzeug zu realisieren, muss die Beleuchtung in Fahrzeugteilen integriert werden. Im Stand der Technik ist eine Vielzahl einzelner Leuchtmittel bekannt, die aus mehreren leistungsschwachen Lichtquellen bestehen. Die Installation von Lichtquellen erfordert zwangsläufig viel Raum, da sie aufgrund ihrer Abmessung als eine zusätzliche Komponente im Fahrzeug verbaut werden müssen. Lighting can provide an attractive viewing experience in vehicles. To implement accent or functional lighting in a vehicle, the lighting must be integrated into vehicle components. The current state of the art involves a multitude of individual light sources consisting of multiple low-power light sources. Installing light sources inevitably requires a lot of space, as their dimensions require them to be installed as an additional component in the vehicle.
WO 2010/049638 A1 , WO 2013/053629 A1 oder WO 2015/095288 A2 offenbaren die Einkopplung von Licht über eine Seitenfläche in eine Glasscheibe. Allerdings ist durch die punktuelle Lichteinkopplung eine homogene Beleuchtung der gesamten Scheibe erschwert. Weiterhin bekannt sind Verbundverglasungen mit Lichtquellen, wobei das von der Lichtquelle emittierte Licht über ein Glassubstrat oder eine polymere Zwischenschicht durch die Verbundverglasung geleitet wird. Eine derartige Verbundverglasung weist eine Lichteinleitungsoberfläche zum Einleiten des von der Lichtquelle emittierten Lichts sowie eine Lichtextraktionsfläche zum Extrahieren des Lichts auf. Bei einer Dachscheibe im Automobilbereich ist beispielsweise eine 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. WO 2010/049638 A1, WO 2013/053629 A1 or WO 2015/095288 A2 disclose the coupling of light into a glass pane via a side surface. However, the point-like coupling of light makes homogeneous illumination of the entire pane difficult. Also known are laminated glazing units with light sources, wherein the light emitted by the light source is guided through the laminated glazing unit via a glass substrate or a polymeric intermediate layer. Such a laminated glazing unit has a light introduction surface for introducing the light emitted by the light source, as well as a A light extraction surface is used to extract the light. For example, in the case of a roof window in the automotive sector, it is difficult to couple light through one of the side surfaces because it is glued into the vehicle body and the window typically has a rounded edge, the so-called C-cut. Since the side surface must be as smooth as possible for the most efficient light coupling, complex smoothing and polishing or other special processing of the side surface is required.
In der WO 2019/170330 A1 wird eine Verbundscheibe mit elektrisch steuerbaren optischen Eigenschaften offenbart, welche eine Außenscheibe, eine erste Zwischenschicht, eine zweite Zwischenschicht und eine Innenscheibe umfasst, wobei ein Lichtleiter zumindest teilweise zwischen der Außenscheibe und der Innenscheibe angeordnet ist. WO 2019/170330 A1 discloses a composite pane with electrically controllable optical properties, which comprises an outer pane, a first intermediate layer, a second intermediate layer and an inner pane, wherein a light guide is arranged at least partially between the outer pane and the inner pane.
WO 2005/054915 A1 offenbart eine Lichtleitanordnung für Fahrzeugdächer, welche zwei Glasscheiben mit einer Zwischenschicht aufweist. Die Lichtleitanordnung umfasst Lichtkopplungsmittel, welche Licht in die Zwischenschicht einkoppeln sowie eine Aussparung zur Aufnahme der Lichtkopplungsmittel. WO 2005/054915 A1 discloses a light-guiding arrangement for vehicle roofs, comprising two glass panes with an intermediate layer. The light-guiding arrangement comprises light-coupling means that couple light into the intermediate layer, as well as a recess for accommodating the light-coupling means.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine verbesserte Verbundscheibenanordnung mit einer Lichtquelle bereitzustellen, die eine besonders effiziente Lichteinkopplung in eine Verbundscheibe und eine flexible Anordnung der Lichtquelle ermöglicht. The present invention is based on the object of providing an improved composite pane arrangement with a light source which enables particularly efficient light coupling into a composite pane and a flexible arrangement of the light source.
Die Aufgabe der vorliegenden Erfindung wird erfindungsgemäß durch eine Verbundscheibenanordnung mit einer Lichtquelle gemäß Anspruch 1 gelöst. Bevorzugte Ausführungen gehen aus den Unteransprüchen hervor. The object of the present invention is achieved by a composite pane arrangement with a light source according to claim 1. Preferred embodiments are evident from the subclaims.
Die erfindungsgemäße Verbundscheibenanordnung mit einer Lichtquelle umfasst mindestens: The composite pane arrangement with a light source according to the invention comprises at least:
• eine Außenscheibe, eine Zwischenschicht und eine Innenscheibe, wobei die Außenscheibe und die Innenscheibe über die Zwischenschicht zu einer Verbundscheibe miteinander verbunden sind, • an outer pane, an intermediate layer and an inner pane, wherein the outer pane and the inner pane are connected to one another via the intermediate layer to form a composite pane,
• eine außerhalb der Verbundscheibe angeordnete Lichtquelle, • a light source arranged outside the laminated pane,
• einen teilweise zwischen der Außenscheibe und der Innenscheibe angeordneten Lichtleiter, wobei an einem ersten, außerhalb der Verbundscheibe angeordneten Ende des Lichtleiters die Lichtquelle angeordnet ist und ein zweites, innerhalb der Verbundscheibe angeordnetes Ende des ersten Lichtleiters über ein Lichteinkopplungsmittel zur Einkopplung des von der Lichtquelle emittierten Lichts in die Verbundscheibe vorgesehen ist. • a light guide arranged partially between the outer pane and the inner pane, wherein the light source is arranged at a first end of the light guide arranged outside the composite pane and a second end arranged inside the composite pane The end of the first light guide is provided with a light coupling means for coupling the light emitted by the light source into the composite pane.
Der Lichtleiter dient dazu die Lichtquelle nicht direkt an oder in der Verbundscheibe anzuordnen, sondern die Anordnung der Lichtquelle möglichst flexibel zu gestalten, wobei die Lichteinkopplung besonders effizient ist. The purpose of the light guide is to position the light source not directly on or in the composite pane, but to make the arrangement of the light source as flexible as possible, whereby the light coupling is particularly efficient.
In einer vorteilhaften Ausgestaltung der erfindungsgemäßen Verbundscheibenanordnung ist das Lichteinkopplungsmittel dazu geeignet, einen Teil des von der Lichtquelle eintreffenden Lichts in Transmission durch Streuung, Reflexion, Brechung oder Beugung abzulenken. Das Lichteinkopplungsmittel kann einen transparenten Körper enthalten, der mit dem Lichtleiter verbunden ist oder der im Lichtleiter integriert ist. Der transparente Körper kann ein oder mehrere Prismen umfassen. In an advantageous embodiment of the composite pane arrangement according to the invention, the light coupling means is suitable for deflecting a portion of the light arriving from the light source in transmission through scattering, reflection, refraction, or diffraction. The light coupling means can comprise a transparent body that is connected to the light guide or integrated into the light guide. The transparent body can comprise one or more prisms.
Vorzugsweise ist vorgesehen, dass der Lichtleiter mindestens eine Länge von 0, 1 m außerhalb der Verbundscheibe aufweist. Insbesondere kann der Lichtleiter zur Verbundscheibe einen Abstand von 0,1 m bis 2 m aufweisen. Preferably, the light guide has a length of at least 0.1 m outside the composite pane. In particular, the light guide can be spaced from the composite pane at a distance of 0.1 m to 2 m.
Dadurch dass die Lichtquelle nicht direkt an der Verbundscheibe angeordnet ist, kann die Lichtquelle flexibel und angepasst an die Einbausituation der Verbundscheibenanordnung positioniert werden. Im aktiven Zustand, also wenn die Lichtquelle mit Strom versorgt wird, erzeugt die Lichtquelle, insbesondere eine Hochleistungs-LED, nicht nur Licht, sondern auch unerwünschte Wärme. Dadurch dass die Lichtquelle entfernt zur Verbundscheibe angeordnet werden kann, wird die Verbundscheibe nicht zusätzlich erwärmt. Ein weiterer Vorteil einer solchen Anordnung liegt darin, dass eine defekte Lichtquelle auf einfache Weise, ohne die Verbundscheibe zu beschädigen, ausgetauscht werden kann. Da die Lichtquelle nicht in der Verbundscheibe integriert werden muss, können große Lichtquellen, d.h. Lichtquellen mit großen Außenmaßen, verwendet werden. Zusätzlich ermöglicht eine solche Verbundscheibenanordnung eine effiziente Lichteinkopplung, da das Licht durch den Lichtleiter direkt in die Verbundscheibe geleitet wird und an einer vorbestimmten Stelle emittiert werden kann. Because the light source is not arranged directly on the composite pane, it can be positioned flexibly and adapted to the installation situation of the composite pane arrangement. In the active state, i.e. when the light source is supplied with power, the light source, in particular a high-performance LED, not only generates light but also unwanted heat. Because the light source can be arranged away from the composite pane, the composite pane is not heated up additionally. A further advantage of such an arrangement is that a defective light source can be easily replaced without damaging the composite pane. Since the light source does not have to be integrated into the composite pane, large light sources, i.e. light sources with large external dimensions, can be used. In addition, such a composite pane arrangement enables efficient light coupling, since the light is guided through the light guide directly into the composite pane and can be emitted at a predetermined location.
Die Begriffe Außenscheibe und Innenscheibe dienen lediglich zur Unterscheidung einer ersten Scheibe und einer zweiten Scheibe. Im Falle einer Verwendung der Verbundscheibe als Fahrzeugscheibe oder als Gebäudescheibe ist die Außenscheibe bevorzugt aber nicht notwendigerweise dem Außenraum der Verbundscheibe zugewandt und die Innenscheibe dem Innenraum. In der erfindungsgemäßen Verbundscheibe sind die Außenscheibe und Innenscheibe über mindesten eine Zwischenschichte miteinander verbunden. Die erfindungsgemäße Verbundscheibe kann beispielsweise als Dachscheibe eines Fahrzeugs ausgebildet sein. The terms outer pane and inner pane serve only to distinguish between a first pane and a second pane. When the laminated pane is used as a vehicle pane or as a building pane, the outer pane preferably, but not necessarily, faces the exterior of the laminated pane, and the inner pane the interior. In the composite pane according to the invention, the outer pane and inner pane are connected to each other via at least one intermediate layer. The composite pane according to the invention can be designed, for example, as a roof pane of a vehicle.
Der Lichtleiter umfasst insbesondere einen Kern und einen den Kern umgebenden Mantel, wobei der Kern einen höheren Brechungsindex aufweist als der Mantel. Der Lichtleiter weist vorzugsweise Fasern aus Glas und/oder Kunststoff als Kern auf. Durch eine Ausbildung des Kerns als Faser, insbesondere aus Glas und/oder Kunststoff wird die Lichtführung flexibel gestaltbar. Bevorzugt ist der Lichtleiter in Form eines Kabels ausgebildet, wobei die längere seiner Dimensionen als Länge und die weniger lange seiner Dimensionen als Breite bezeichnet wird. The optical fiber comprises, in particular, a core and a cladding surrounding the core, the core having a higher refractive index than the cladding. The optical fiber preferably has fibers made of glass and/or plastic as the core. By forming the core as a fiber, in particular of glass and/or plastic, the light guide can be designed flexibly. The optical fiber is preferably in the form of a cable, with the longer of its dimensions being referred to as the length and the shorter of its dimensions being referred to as the width.
Alternativ oder zusätzlich kann der Lichtleiter eine Flüssigkeit, insbesondere ein Gel als Transportmedium aufweisen. Die Verwendung einer Flüssigkeit oder eines Gels als Transportmedium bietet eine stärkere Lichtausbeute als bei anderen Lichtleitern. Bevorzugt ist der Lichtleiter flexibel und/oder biegsam ausgebildet. Durch die Verwendung des flexiblen Lichtleiters zur Leitung von Licht kann das Licht vorteilhafterweise mit geringem Aufwand an eine beliebige Position der Verbundscheibe transportiert werden. Dadurch wird die Gestaltung der Lichtführung innerhalb der Verbundscheibe flexibel und besonders einfach ausführbar. Alternatively or additionally, the light guide can comprise a liquid, particularly a gel, as a transport medium. The use of a liquid or a gel as a transport medium offers a higher light output than with other light guides. The light guide is preferably flexible and/or bendable. By using the flexible light guide to guide the light, the light can advantageously be transported to any position on the composite pane with little effort. This makes the design of the light guide within the composite pane flexible and particularly easy to implement.
Der Lichtleiter kann zumindest teilweise lichtstreuend und/oder transparent ausgebildet sein. Insbesondere kann der Lichtleiter optisch transparent ausgebildet sein. Der Lichtleiter weist eine das erste Ende und das zweite Ende verbindende Mantelfläche auf, wobei das Licht im Lichtleiter zumindest teilweise durch die Mantelfläche des Lichtleiters austritt. Der Lichtleiter kann einen zumindest abschnittsweise transparenten, schlauchförmigen Mantel oder alternativ keine Umhüllung aufweisen. Die Emission von Licht kann sich über einen ausgedehnten Abschnitt des Lichtleiters erstrecken oder punktförmig erfolgen. The light guide can be at least partially light-scattering and/or transparent. In particular, the light guide can be optically transparent. The light guide has a lateral surface connecting the first end and the second end, with the light in the light guide exiting at least partially through the lateral surface of the light guide. The light guide can have a tubular sheath that is at least partially transparent or, alternatively, can have no sheath. The light can be emitted over an extended section of the light guide or at a point.
In einer vorteilhaften Ausgestaltung ist der Lichtleiter zwischen der Außenscheibe und der Innenscheibe angeordnet. In an advantageous embodiment, the light guide is arranged between the outer pane and the inner pane.
In einer weiteren vorteilhaften Ausgestaltung ist zwischen der Innenscheibe und der Zwischenschicht eine lichtreflektierende Schicht angeordnet. Das zweite, innerhalb der Verbundscheibe angeordnete Ende des Lichtleiters ist über das Lichteinkopplungsmittel zur Einkopplung des von der Lichtquelle emittierten Lichts in die Innenscheibe vorgesehen, wobei der Brechungsindex der Innenscheibe größer ist als der Brechungsindex der lichtreflektierenden Schicht. Die lichtreflektieren Schicht kann als eine Beschichtung auf einer außenseitigen, zur Zwischenschicht hingewandten Oberfläche der Innenscheiben ausgebildet sein. In a further advantageous embodiment, a light-reflecting layer is arranged between the inner pane and the intermediate layer. The second end of the light guide, arranged within the composite pane, is provided via the light coupling means for coupling the light emitted by the light source into the inner pane, wherein the refractive index of the inner pane is greater than the refractive index of the light-reflecting layer. The light-reflecting layer can be formed as a coating on an outer surface of the inner pane facing the intermediate layer.
Brechungsindizes sind im Rahmen der vorliegenden Erfindung grundsätzlich bezogen auf eine Wellenlänge von 550 nm [Nanometer] angegeben. Der Brechungsindex ist grundsätzlich unabhängig von der Messmethode, er kann beispielsweise mittels Ellipsometrie bestimmt werden. Ellipsometer sind kommerziell erhältlich. Bei der Bestimmung des Brechungsindex der Scheiben, insbesondere der Innenscheibe und Außenscheibe, wird die gleiche Messmethode verwendet wie bei der Bestimmung des Brechungsindex der lichtreflektierenden Schicht oder einer Lichtleitschicht. For the purposes of the present invention, refractive indices are generally specified relative to a wavelength of 550 nm [nanometers]. The refractive index is fundamentally independent of the measurement method; it can be determined, for example, using ellipsometry. Ellipsometers are commercially available. When determining the refractive index of the panes, particularly the inner and outer panes, the same measurement method is used as for determining the refractive index of the light-reflecting layer or a light-conducting layer.
In einer weiteren vorteilhaften Ausgestaltung kann zwischen der Innenscheibe und der Zwischenschicht eine Lichtleitschicht angeordnet sein. Das zweite, innerhalb der Verbundscheibe angeordnete Ende des ersten Lichtleiters kann über das Lichteinkopplungsmittel zur Einkopplung des von der Lichtquelle emittierten Lichts in die Lichtleitschicht vorgesehen sein, wobei der Brechungsindex der Lichtleitschicht größer ist als der Brechungsindex der Innenscheibe. Insbesondere kann die Lichtleitschicht als eine lichtleitende Folie, eine lichtleitende Beschichtung oder Dünnglasscheibe ausgebildet sein, wobei die Lichtleitschicht eine Dicke von beispielsweise 1000 pm oder 500 pm [Mikrometer] oder weniger aufweist. In a further advantageous embodiment, a light-guiding layer can be arranged between the inner pane and the intermediate layer. The second end of the first light guide, arranged within the composite pane, can be provided via the light coupling means for coupling the light emitted by the light source into the light-guiding layer, wherein the refractive index of the light-guiding layer is greater than the refractive index of the inner pane. In particular, the light-guiding layer can be formed as a light-guiding film, a light-guiding coating, or a thin glass pane, wherein the light-guiding layer has a thickness of, for example, 1000 pm or 500 pm [micrometers] or less.
In einer vorteilhaften Ausgestaltung der erfindungsgemäßen Verbundscheibenanordnung ist mindestens ein Lichtauskopplungsmittel zum Auskoppeln von Licht aus der ersten Innenscheibe oder aus der Lichtleitschicht vorgesehen. Das eine oder mehrere Lichtauskopplungsmittel können auf oder in mindestens einer der Oberflächen, bevorzugt auf oder in einer innenseitigen Oberfläche der Innenscheibe angebracht sein. In an advantageous embodiment of the composite pane arrangement according to the invention, at least one light extraction means is provided for extracting light from the first inner pane or from the light-conducting layer. The one or more light extraction means can be mounted on or in at least one of the surfaces, preferably on or in an inner surface of the inner pane.
Die Lichtleitschicht kann als eine lichtleitende Folie, eine lichtleitende Beschichtung oder Dünnglasscheibe ausgebildet sein, wobei die Lichtleitschicht eine Dicke von 1000 pm oder weniger aufweist. Durch die Verwendung der Lichtleitschicht kann eine attraktive Akzentbeleuchtung beispielsweise in einem Fahrzeug realisiert werden. Die Verbundscheibe kann mehrere Lichtleitschichten umfassen. Vorteilhafterweise kann der Lichtleiter einen Durchmesser aufweisen, welcher der Dicke der Zwischenschicht entspricht. Dadurch wird eine besonders gute Verbindung zwischen Lichtleiter und Verbundscheibe und eine besonders effektive Lichteinkopplung erzielt. The light-guiding layer can be formed as a light-guiding film, a light-guiding coating, or a thin glass pane, with the light-guiding layer having a thickness of 1000 μm or less. The use of the light-guiding layer can be used to create attractive accent lighting, for example, in a vehicle. The composite pane can comprise multiple light-guiding layers. Advantageously, the light guide can have a diameter that corresponds to the thickness of the intermediate layer. This ensures a particularly good connection between the light guide and the composite pane and a particularly effective light coupling.
Bevorzugt weist die Zwischenschicht einen Aussparungsbereich auf, in welchem ein Abschnitt des Lichtleiters angeordnet ist. Somit weist der Lichtleiter eine stabile Fixierung innerhalb der Verbundscheibe auf. Preferably, the intermediate layer has a recessed area in which a portion of the light guide is arranged. Thus, the light guide is securely fixed within the composite pane.
In einer weiteren vorteilhaften Ausgestaltung umfasst die Verbundscheibe eine opake Abdeckschicht an einer Oberfläche (I, II) der Außenscheibe. Die Abdeckschicht und der Abschnitt des Lichtleiters überlappen sich in Durchsichtrichtung durch die Verbundscheibe. Die opake Abdeckschicht kann in einem umlaufenden Randbereich insbesondere auf der innenseitigen Oberfläche (II) der Außenscheibe angeordnet sein. Die Abdeckschichte wird auch als Abdeckdruck oder Schwarzdruck bezeichnet. Der Abdeckdruck ist aus einer Druckfarbe ausgebildet. Die Abdeckschicht kann aus einer opaken Emaille ausgebildet sein, bevorzugt aufgebracht als Siebdruck oder als Digitaldruck. Die Emaille (engl. Enamel) kann Glasfritten und/oder mineralische Fritten und optional mindestens ein Pigment enthalten, bevorzugt Glasfritten und/oder mineralische Fritten auf Basis von Oxiden ausgewählt aus Bor, Wismut, Zink, Silizium, Aluminium und Natrium. Das Pigment sorgt für die Opazität der Abdeckschicht. Das Pigment kann ein Schwarzpigment, beispielsweise Pigmentruß (Carbon Black), Anilinschwarz, Beinschwarz, Eisenoxidschwarz, Spinellschwarz und/oder Graphit sein. Alternativ kann die Abdeckschicht als ein insbesondere schwarzes Klebeband oder eine Grundschicht, sogenannter Primer, ausgebildet sein. Die Verbundscheibe kann mehrere Abdeckschichten aufweisen. Die Abdeckschichten können eine Schichtdicke von 5 pm bis 50 pm, besonders bevorzugt von 8 pm bis 25 pm aufweisen. In a further advantageous embodiment, the composite pane comprises an opaque cover layer on a surface (I, II) of the outer pane. The cover layer and the section of the light guide overlap in the viewing direction through the composite pane. The opaque cover layer can be arranged in a peripheral edge region, in particular on the inner surface (II) of the outer pane. The cover layer is also referred to as a cover print or black print. The cover print is formed from a printing ink. The cover layer can be formed from an opaque enamel, preferably applied as a screen print or digital print. The enamel can contain glass frits and/or mineral frits and optionally at least one pigment, preferably glass frits and/or mineral frits based on oxides selected from boron, bismuth, zinc, silicon, aluminum, and sodium. The pigment ensures the opacity of the cover layer. The pigment can be a black pigment, for example, carbon black, aniline black, bone black, iron oxide black, spinel black, and/or graphite. Alternatively, the cover layer can be formed as a particularly black adhesive tape or a base layer, a so-called primer. The composite pane can have multiple cover layers. The cover layers can have a layer thickness of 5 μm to 50 μm, particularly preferably 8 μm to 25 μm.
Vorteilhafterweise umfasst die Lichtquelle mindestens eine Leuchtdiode (LED, englisch Light Emitting Diode), eine organische Leuchtdiode (OLED, englisch Organic Light Emitting Diode), eine transparente, organische Leuchtdiode (TOLED, englisch Transparent Organic Light Emitting Diode) und/oder mindestens eine Laserdiode. Die Verwendung einer Laserdiode hat den Vorteil, dass sie besonders leistungsstark und effizient ist. Auf diese Weise kann an mehreren Stellen der Verbundscheibe ein Beleuchtungsakzent gesetzt werden. Advantageously, the light source comprises at least one light-emitting diode (LED), one organic light-emitting diode (OLED), one transparent organic light-emitting diode (TOLED), and/or at least one laser diode. The use of a laser diode has the advantage of being particularly powerful and efficient. This allows for accent lighting to be created at multiple locations on the composite pane.
Die Lichtquelle kann eine Kühleinrichtung zum Kühlen der Lichtquelle aufweisen. Dadurch können Hochleistung-LEDs als Lichtquelle verwendet werden, da diese im Betrieb eine aktive Kühlung erfordern. Die Lichtquelle kann farbiges oder weißes Licht emittierend sein. Bevorzugte Lichtfarben sind weiß, gelb, rot (wegen der ausgeprägten Signalwirkung), grün (wegen der hohen Empfindlichkeit des menschlichen Auges für das grüne Farbspektrum) und blau. The light source can include a cooling device for cooling the light source. This allows high-performance LEDs to be used as the light source, as these require active cooling during operation. The light source can emit colored or white light. Preferred light colors are white, yellow, red (due to their strong signaling effect), green (due to the human eye's high sensitivity to the green color spectrum), and blue.
Es versteht sich, dass eine erfindungsgemäße Verbundscheibenanordnung einen oder mehrere Lichtleiter und Lichtquellen aufweisen kann. Dabei sind bevorzugt alle Lichtleiter gemeinsam oder jeder Lichtleiter einzeln mit mindestens einer Lichtquelle gekoppelt. Der oder die Lichtleiter kann bzw. können in jeder beliebigen, technisch möglichen Form in der Verbundscheibe angeordnet sein, beispielsweise im Randbereich, in der Mitte, geradlinig, geschwungen oder als Schriftzug oder Symbol. Die Verwendung eines flexiblen Lichtleiters ermöglicht auch bei komplex gewölbter Scheibengeometrie eine nahezu faltenfreie Schichtung in der Verbundscheibe. It is understood that a composite pane arrangement according to the invention can comprise one or more light guides and light sources. Preferably, all light guides are coupled together, or each light guide is individually coupled, to at least one light source. The light guide(s) can be arranged in any technically feasible form within the composite pane, for example, in the edge region, in the center, straight, curved, or as lettering or a symbol. The use of a flexible light guide enables virtually wrinkle-free layering within the composite pane, even with a complexly curved pane geometry.
Die erfindungsgemäße Verbundscheibenanordnung weist durch die Verwendung eines Lichtleiters in der Verbundscheibe eine attraktive Akzentbeleuchtung auf. Zusätzlich führt die Integration des Lichtleiters in die Verbundscheibe zu einer enormen Platzersparnis, da ein zusätzliches Lichtmodul direkt an oder in der Verbundscheibe entfällt. The composite pane arrangement according to the invention provides attractive accent lighting through the use of a light guide in the composite pane. Furthermore, the integration of the light guide into the composite pane results in enormous space savings, as an additional lighting module directly on or in the composite pane is no longer required.
Die Außenscheiben und die Innenscheibe enthalten bevorzugt Glas, besonders bevorzugt Flachglas, Floatglas, Quarzglas, Borosilikatglas, Kalk-Natron-Glas oder klare Kunststoffe, besonders bevorzugt starre klare Kunststoffe, beispielsweise Polycarbonat oder Polymethylmethacrylat. Die Scheiben können klar und optisch transparent sein oder auch getönt oder gefärbt. Die Dicke der Scheiben kann breit variieren und so den Erfordernissen im Einzelfall angepasst werden. Die Dicke jeder Scheibe beträgt bevorzugt von 0,5 mm bis 15 mm, besonders bevorzugt von 1 mm bis 5 mm. Insbesondere besteht zumindest die Innenscheibe und bevorzugt auch die Außenscheibe aus Klarglas. The outer panes and the inner pane preferably contain glass, particularly preferably flat glass, float glass, quartz glass, borosilicate glass, soda-lime glass, or clear plastics, particularly preferably rigid clear plastics, for example, polycarbonate or polymethyl methacrylate. The panes can be clear and optically transparent or tinted or colored. The thickness of the panes can vary widely and thus be adapted to the requirements of the individual case. The thickness of each pane is preferably from 0.5 mm to 15 mm, particularly preferably from 1 mm to 5 mm. In particular, at least the inner pane and preferably also the outer pane are made of clear glass.
Im Sinne vorliegender Erfindung bedeutet "transparent", dass die Gesamttransmission der Verbundscheibe den gesetzlichen Bestimmungen in der Europäischen Union für Windschutzscheiben und vordere Seitenscheiben entspricht und für sichtbares Licht bevorzugt eine Durchlässigkeit von mehr als 70% und insbesondere von mehr als 75% aufweist. Für hintere Seitenscheiben, Dachscheiben und Heckscheiben kann "transparent" auch 10% bis 70% Lichttransmission bedeuten. Entsprechend bedeutet "opak" eine Lichttransmission von weniger als 15%, vorzugsweise weniger als 5%, insbesondere 0%. Die Verbundscheibe kann eine beliebige dreidimensionale Form aufweisen. Die Verbundscheibe ist bevorzugt plan oder leicht oder stark in einer Richtung oder in mehreren Richtungen des Raumes gebogen. For the purposes of this invention, "transparent" means that the total transmission of the laminated pane complies with the legal requirements of the European Union for windshields and front side windows and preferably has a visible light transmittance of more than 70%, and in particular more than 75%. For rear side windows, roof windows, and rear windows, "transparent" can also mean 10% to 70% light transmission. Accordingly, "opaque" means a light transmission of less than 15%, preferably less than 5%, and in particular 0%. The composite pane can have any three-dimensional shape. The composite pane is preferably flat or slightly or strongly curved in one or more directions of the room.
Zusätzlich kann die Verbundscheibe ein Funktionselement mit elektrisch steuerbaren optischen Eigenschaften aufweisen, das in der Zwischenschicht eingebettet ist. Das Funktionselement kann bei der Herstellung der Verbundscheibe einfach zwischen einer ersten Zwischenschicht und einer zweiten Zwischenschicht eingelegt werden. Die erste Zwischenschicht und die zweite Zwischenschicht enthalten zumindest ein thermoplastisches Polymer, beispielsweise Ethylenvinylacetat, Polyvinylbutyral, Polyurethan und/oder Gemische und/oder Copolymere davon. Die Dicke der thermoplastischen Verbindungsfolien beträgt bevorzugt von 0,05 mm bis 2 mm, beispielsweise 0,38 mm oder 0,76 mm. Die Verbindung erfolgt unter Einwirkung von Hitze, Vakuum und/oder Druck nach an sich bekannten Verfahren. Additionally, the composite pane can have a functional element with electrically controllable optical properties embedded in the intermediate layer. The functional element can be simply inserted between a first intermediate layer and a second intermediate layer during the manufacture of the composite pane. The first intermediate layer and the second intermediate layer contain at least one thermoplastic polymer, for example, ethylene-vinyl acetate, polyvinyl butyral, polyurethane, and/or mixtures and/or copolymers thereof. The thickness of the thermoplastic bonding films is preferably between 0.05 mm and 2 mm, for example, 0.38 mm or 0.76 mm. The bonding is effected under the influence of heat, vacuum, and/or pressure using conventional methods.
In einer besonders vorteilhaften Ausgestaltung einer erfindungsgemäßen Verbundscheibe ist das Funktionselement ein PDLC-Funktionselement (polymer dispersed liquid crystal). Das PDLC-Funktionselement weist eine aktive Schicht auf, die ungeordnet ausgerichtete Flüssigkristalle enthält. Dies führt zu einer starken Streuung des durch die aktive Schicht tretenden Lichts. Weiterhin weist das PDLC-Funktionselement zwei Flächenelektroden auf. Wird an den Flächenelektroden eine elektrische Spannung angelegt, so richten sich die Flüssigkristalle in eine Richtung aus und die Transmission von Licht durch die aktive Schicht wird wesentlich erhöht. Ohne angelegte elektrische Spannung zeichnet sich das PDLC- Funktionselement durch ein weißes, milchiges Aussehen aus, das als Sichtschutz dient. In a particularly advantageous embodiment of a composite pane according to the invention, the functional element is a PDLC (polymer dispersed liquid crystal) functional element. The PDLC functional element has an active layer containing randomly aligned liquid crystals. This leads to strong scattering of the light passing through the active layer. The PDLC functional element also has two surface electrodes. If an electrical voltage is applied to the surface electrodes, the liquid crystals align in one direction, and the transmission of light through the active layer is significantly increased. Without an applied electrical voltage, the PDLC functional element is characterized by a white, milky appearance, which serves as a visual barrier.
In einer alternativen vorteilhaften Ausgestaltung der Erfindung ist das Funktionselement ein SPD-Funktionselement (suspended particle device). Dabei enthält die aktive Schicht suspendierte Partikel, welche bevorzugt in eine zähflüssige Matrix eingelagert sind. Die Absorption von Licht durch die aktive Schicht ist durch das Anlegen einer Spannung an die Flächenelektroden veränderbar, welche zu einer Orientierungsänderung der suspendierten Partikel führt. Vorteilhafterweise ist das Funktionselement zentral in der Verbundscheibe angeordnet. Das Funktionselement kann über Kontaktelemente elektrisch angesteuert werden In an alternative advantageous embodiment of the invention, the functional element is an SPD (suspended particle device). The active layer contains suspended particles, which are preferably embedded in a viscous matrix. The absorption of light by the active layer can be changed by applying a voltage to the surface electrodes, which leads to a change in the orientation of the suspended particles. Advantageously, the functional element is arranged centrally in the composite pane. The functional element can be electrically controlled via contact elements.
Zusätzlich kann zur ersten und zweiten Zwischenschicht eine dritte Zwischenschicht zur Reflexion von Infrarotstrahlung vorgesehen sein. In diesem Fall ist die dritte Zwischenschicht zwischen der ersten Zwischenschicht und der zweiten Zwischenschicht angeordnet. Die dritte Zwischenschicht kann ein Polyvinylbutyral, Ethylenvinylacetat, Polyurethan und/oder Gemische und/oder Copolymere davon und eine Polymerfolie aufweisen. Bevorzugt wird eine Schicht Polyvinylbutyral (PVB) mit einer Polyethylenterephthalat-Folie (PET) verwendet. Die PET-Folie ist besonders vorteilhaft im Hinblick auf die Stabilität der dritten Zwischenschicht. Die PVB-Folien enthalten zumindest ein thermoplastisches Polymer, beispielsweise Ethylenvinylacetat, Polyvinylbutyral, Polyurethan und/oder Gemische und/oder Copolymere davon. Die Dicke der thermoplastischen PVB-folie beträgt bevorzugt von 0,05 mm bis 2 mm, beispielsweise 0,38 mm oder 0,76 mm. In addition to the first and second intermediate layers, a third intermediate layer can be provided to reflect infrared radiation. In this case, the third intermediate layer is arranged between the first intermediate layer and the second intermediate layer. The third intermediate layer can comprise polyvinyl butyral, ethylene-vinyl acetate, polyurethane, and/or mixtures and/or copolymers thereof, and a polymer film. Preferably, a layer of polyvinyl butyral (PVB) with a polyethylene terephthalate (PET) film is used. The PET film is particularly advantageous with regard to the stability of the third intermediate layer. The PVB films contain at least one thermoplastic polymer, for example, ethylene-vinyl acetate, polyvinyl butyral, polyurethane, and/or mixtures and/or copolymers thereof. The thickness of the thermoplastic PVB film is preferably from 0.05 mm to 2 mm, for example, 0.38 mm or 0.76 mm.
Die PET-Folie kann eine transparente, infrarotreflektierende Beschichtung aufweisen. Die infrarotreflektierende Beschichtung enthält dann Silber, Titandioxid, Aluminiumnitrid oder Zinkoxid, wobei bevorzugt Silber eingesetzt wird. Zur Verbesserung der Leitfähigkeit bei gleichzeitig hoher Transparenz kann die Beschichtung mehrere elektrisch leitfähige Schichten aufweisen, welche durch zumindest eine dielektrische Schicht voneinander getrennt sind. Die infrarotreflektierende und leitfähige Beschichtung kann beispielsweise zwei, drei oder vier elektrisch leitfähige Schichten enthalten. Die infrarotreflektierende Beschichtung kann zusätzlich dielektrische Schichten aufweisen, die beispielsweise zur Regulierung des Schichtwiderstands, zum Korrosionsschutz oder zur Verminderung der Reflexion dienen. Eine solche infrarotreflektierende Beschichtung ist bevorzugt auf einer zur ersten Zwischenschicht hingewandten Oberfläche aufgebracht. The PET film can have a transparent, infrared-reflecting coating. The infrared-reflecting coating then contains silver, titanium dioxide, aluminum nitride, or zinc oxide, with silver being preferred. To improve conductivity while maintaining high transparency, the coating can have several electrically conductive layers separated from one another by at least one dielectric layer. The infrared-reflecting and conductive coating can, for example, contain two, three, or four electrically conductive layers. The infrared-reflecting coating can additionally have dielectric layers that serve, for example, to regulate the sheet resistance, provide corrosion protection, or reduce reflection. Such an infrared-reflecting coating is preferably applied to a surface facing the first intermediate layer.
Ein weiterer Aspekt der Erfindung umfasst ein System mit einer erfindungsgemäßen Verbundscheibenanordnung umfassend eine Lichtsteuerung der Lichtquelle, beispielsweise als Windschutzscheibe, Heckscheibe, Seitenscheibe und/oder Dachscheibe, in Gebäuden, insbesondere im Zugangsbereich, Fensterbereich, Dachbereich oder Fassadenbereich, als Einbauteil in Möbeln und Geräten. A further aspect of the invention comprises a system with a composite pane arrangement according to the invention comprising a light control of the light source, for example as a windshield, rear window, side window and/or roof window, in buildings, in particular in the access area, window area, roof area or facade area, as a built-in part in furniture and appliances.
Ein weiterer Aspekt der Erfindung umfasst ein Fahrzeug, insbesondere Personenkraftwagen, mit einer erfindungsgemäßen Verbundscheibenanordnung. A further aspect of the invention comprises a vehicle, in particular a passenger car, with a composite pane arrangement according to the invention.
Es versteht sich, dass die vorstehend genannten und nachstehend näher erläuterten Merkmale nicht nur in den angegebenen Kombinationen und Konfigurationen, sondern auch in anderen Kombinationen und Konfigurationen oder in Alleinstellung einsetzbar sind, ohne den Rahmen der vorliegenden Erfindung zu verlassen. Die Erfindung wird anhand einer Zeichnung und Ausführungsbeispielen näher erläutert. Die Zeichnung ist eine schematische Darstellung und nicht maßstabsgetreu. Die Zeichnung schränkt die Erfindung in keiner Weise ein. It is understood that the features mentioned above and explained in more detail below can be used not only in the specified combinations and configurations, but also in other combinations and configurations or in isolation, without departing from the scope of the present invention. The invention is explained in more detail with reference to a drawing and exemplary embodiments. The drawing is a schematic representation and not to scale. The drawing does not limit the invention in any way.
Es zeigen: They show:
Figur 1 eine Querschnittsdarstellung durch die erfindungsgemäßeFigure 1 is a cross-sectional view through the inventive
Verbundscheibenanordnung, Composite pane arrangement,
Figur 2A eine Querschnittsdarstellung durch eine erste Ausgestaltung einesFigure 2A is a cross-sectional view through a first embodiment of a
Lichtleiters, light guide,
Figur 2B eine Querschnittsdarstellung durch eine zweite Ausgestaltung desFigure 2B is a cross-sectional view through a second embodiment of the
Lichtleiters, light guide,
Figur 2C eine Querschnittsdarstellung durch eine dritte Ausgestaltung desFigure 2C is a cross-sectional view through a third embodiment of the
Lichtleiters, light guide,
Figur 3 eine Querschnittsdarstellung durch eine Weiterbildung der erfindungsgemäße Verbundscheibenanordnung, und Figure 3 is a cross-sectional view through a further development of the composite pane arrangement according to the invention, and
Figur 4 eine Querschnittsdarstellung durch eine weitere Ausgestaltung der erfindungsgemäße Verbundscheibenanordnung mit Lichtleitschicht.Figure 4 is a cross-sectional view through a further embodiment of the composite pane arrangement according to the invention with a light-guiding layer.
In den Figuren sind gleiche oder gleich wirkende Bestandteile jeweils mit den gleichen Bezugszeichen versehen. In the figures, identical or identically functioning components are provided with the same reference numerals.
Figur 1 zeigt eine Querschnittsdarstellung einer erfindungsgemäßen Verbundscheibenanordnung 101 , die eine Verbundscheibe 10 mit einem Lichtleiter 4 und einer Lichtquelle 5 umfasst. Die Verbundscheibe 10 ist in diesem Beispiel als Dachscheibe eines Personenkraftwagens ausgestaltet. Figure 1 shows a cross-sectional view of a composite pane assembly 101 according to the invention, which comprises a composite pane 10 with a light guide 4 and a light source 5. In this example, the composite pane 10 is designed as a roof pane of a passenger car.
Die Verbundscheibe 10 enthält eine Außenscheibe 1 mit einer innenseitigen Oberfläche II, eine Innenscheibe 2 mit einer außenseitigen Oberfläche III, eine Zwischenschicht 3, welche die innenseitige Oberfläche II der Außenscheibe 1 mit der außenseitigen Oberfläche III der Innenscheibe 2 über die Scheibenfläche miteinander verbindet. Ferner ist zwischen der Zwischenschicht 3 und der Innenscheibe 2 eine lichtreflektierende Schicht 9 angeordnet. In der Innenscheibe 2 propagiert das von dem Lichtleiter 4 emittierte Licht 6. Die lichtreflektierende Schicht 9 ist dazu vorgesehen, das auf die lichtreflektierende Schicht 9 auftreffende Licht 6 in die Innenscheibe 2 zurück zu reflektieren. Der Brechungsindex der Innenscheibe 2 ist größer als der Brechungsindex der lichtreflektierenden Schicht 9. Die in der Innescheibe 2 propagierenden Lichtstahlen werden in die Innenscheibe 2 reflektiert. Die lichtreflektieren Schicht 9 ist als eine Beschichtung auf der außenseitigen, zur Zwischenschicht 3 hingewandten Oberfläche III der Innenscheiben 2 ausgebildet. The composite pane 10 contains an outer pane 1 with an inner surface II, an inner pane 2 with an outer surface III, and an intermediate layer 3, which connects the inner surface II of the outer pane 1 with the outer surface III of the inner pane 2 across the pane surface. Furthermore, a light-reflecting layer 9 is arranged between the intermediate layer 3 and the inner pane 2. The light 6 emitted by the light guide 4 propagates in the inner pane 2. The The light-reflecting layer 9 is intended to reflect the light 6 incident on the light-reflecting layer 9 back into the inner pane 2. The refractive index of the inner pane 2 is greater than the refractive index of the light-reflecting layer 9. The light rays propagating in the inner pane 2 are reflected into the inner pane 2. The light-reflecting layer 9 is formed as a coating on the outer surface III of the inner panes 2 facing the intermediate layer 3.
Die Außenscheibe 1 und die Innenscheibe 2 bestehen beispielsweise aus Kalk-Natron-Glas und weisen beispielsweise eine Dicke von jeweils 1 ,5 mm auf. Die Zwischenschicht 3 ist thermoplastisch und beispielsweise als eine mehrlagige Folie aus thermoplastischem Kunststoff (TPU), optisch klarem druckempfindlichen Klebstoff (PSA), Polyvinylbutyral (PVB) oder Ethylen-Vinylacetat (EVA) mit einer Gesamtdicke von 0,86 mm ausgebildet oder weisen eines oder mehrere dieser Materialien auf. The outer pane 1 and the inner pane 2 are made of soda-lime glass, for example, and each have a thickness of 1.5 mm. The intermediate layer 3 is thermoplastic and is formed, for example, as a multilayer film made of thermoplastic polymer (TPU), optically clear pressure-sensitive adhesive (PSA), polyvinyl butyral (PVB), or ethylene-vinyl acetate (EVA) with a total thickness of 0.86 mm, or comprise one or more of these materials.
Es versteht sich, dass auch andere Glasscheiben oder Polymerscheiben als Außenscheibe 1 und Innenscheibe 2 verwendet werden können. Des Weiteren kann die Dicke der Außenscheibe 1 und Innenscheibe 2 an die jeweilige Verwendung angepasst sein. It is understood that other glass panes or polymer panes can also be used as outer pane 1 and inner pane 2. Furthermore, the thickness of outer pane 1 and inner pane 2 can be adapted to the respective application.
Die Außenscheibe 1 kann vorgespanntes, teilvorgespanntes oder nicht-vorgespanntes Glas aufweisen. Die Innenscheibe 1 , die Außenscheibe 2 und die Zwischenschicht 3 sind beispielsweise klar (weder getönt noch gefärbt). Insbesondere besteht zumindest die Innenscheibe 2 oder auch die Außenscheibe 1 aus Klarglas. Alternativ kann die Zwischenschicht 3 eine getönte, insbesondere eine dunkele Tönung (grau, braun, blau) oder gefärbte PVB-Folie aufweisen. Alternativ oder zusätzlich kann die Außenscheibe 1 dunkel (grau, braun, blau) getönt sein. The outer pane 1 can comprise tempered, semi-tempered, or non-tempered glass. The inner pane 1, the outer pane 2, and the intermediate layer 3 are, for example, clear (neither tinted nor colored). In particular, at least the inner pane 2 or also the outer pane 1 is made of clear glass. Alternatively, the intermediate layer 3 can comprise a tinted, in particular dark tint (gray, brown, blue) or colored PVB film. Alternatively or additionally, the outer pane 1 can be dark tinted (gray, brown, blue).
Der Lichtleiter 4 weist ein erstes, außerhalb der Verbundscheibe 10 angeordnetes Ende 4a und ein zweites, innerhalb der Verbundscheibe angeordnetes Ende 4b auf. Der Lichtleiter 4 ist abschnittsweise zwischen der außenseitigen Oberfläche III der Innenscheibe 2 und der innenseitigen Oberfläche II der Außenscheibe 2 angeordnet. Die Zwischenschicht 3 weist einen Aussparungsbereich auf, in welchem ein Abschnitt der Länge B des Lichtleiters 4 mit dem zweiten Ende 4b angeordnet ist. Der Lichtleiter 4 weist einen Durchmesser auf, welcher der Dicke der Zwischenschicht 3 entspricht. The light guide 4 has a first end 4a located outside the composite pane 10 and a second end 4b located inside the composite pane. The light guide 4 is arranged in sections between the outer surface III of the inner pane 2 and the inner surface II of the outer pane 2. The intermediate layer 3 has a recess region in which a section of length B of the light guide 4 is arranged with the second end 4b. The light guide 4 has a diameter corresponding to the thickness of the intermediate layer 3.
An dem ersten Ende 4a des Lichtleiters 4 ist die Lichtquelle 5 angeordnet. Das zweite, innerhalb der Verbundscheibe 10 angeordnete Ende 4b ist über ein Lichteinkopplungsmittel 7 zur Einkopplung des von der Lichtquelle 5 emittierten Lichts 6 in die Verbundscheibe 10 vorgesehen. Das zweite Ende 4b des Lichtleiters 4 ist lichtleitend mit der Innenscheibe 2 über das Lichteinkopplungsmittel 7 verbunden oder gekoppelt. Das Lichteinkopplungsmittel 7 ist dazu geeignet, einen Teil des von der Lichtquelle eintreffenden Lichts in Transmission durch Streuung, Reflexion, Brechung oder Beugung abzulenken. Das Lichteinkopplungsmittel 7 kann einen transparenten Körper enthalten, der mit dem Lichtleiter 4 verbunden ist oder der im Lichtleiter 4 integriert ist. Der transparente Körper kann ein oder mehrere Prismen umfassen. Der Lichtleiter 4 ist in Form eines Kabels ausgebildet. Alternativ kann der Lichtleiter 4 als ein planarer Lichtleiter ausgebildet sein. The light source 5 is arranged at the first end 4a of the light guide 4. The second end 4b, arranged within the composite pane 10, is connected to the light guide 4 via a light coupling means 7. for coupling the light 6 emitted by the light source 5 into the composite pane 10. The second end 4b of the light guide 4 is light-conductingly connected or coupled to the inner pane 2 via the light coupling means 7. The light coupling means 7 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 7 can contain a transparent body that is connected to the light guide 4 or that is integrated into the light guide 4. The transparent body can comprise one or more prisms. The light guide 4 is designed in the form of a cable. Alternatively, the light guide 4 can be designed as a planar light guide.
Der Lichtleiter 4 weist eine Länge A von 0,1 m bis 2,5 m außerhalb der Verbundscheibe 10 auf, beispielsweise 0,5 m, 1 m, 1 ,5 m oder 2 m. Die Lichtquelle 5 kann dabei einen Abstand von 0,1 m bis 2 m zur Verbundscheibe 10 aufweisen. In der Verbundscheibe 10 erstreckt sich der Lichtleiter 4 über eine Länge B von 0,01 m bis 2,5 m, beispielsweise 0,1 m, 0,5 m, 1 m oder 2 m. The light guide 4 has a length A of 0.1 m to 2.5 m outside the composite pane 10, for example 0.5 m, 1 m, 1.5 m or 2 m. The light source 5 can have a distance of 0.1 m to 2 m from the composite pane 10. In the composite pane 10, the light guide 4 extends over a length B of 0.01 m to 2.5 m, for example 0.1 m, 0.5 m, 1 m or 2 m.
Die Lichtquelle 5 besteht beispielsweise aus einem oder mehreren Leuchtmodulen, Leuchtdioden LEDs, OLEDs, TOLEDs, und/oder Laserdioden, die beispielsweise über einen Reflektor, Licht in den Lichtleiter 4 einkoppeln können. Bei Anlegen einer elektrischen Spannung an die Lichtquelle 5 wird Licht 6 in den Lichtleiter 4 eingekoppelt. Die Lichtquelle 5 kann eine Kühleinrichtung zum aktiven Kühlen der Lichtquelle 5 aufweisen. The light source 5 consists, for example, of one or more light modules, light-emitting diodes (LEDs), OLEDs, TOLEDs, and/or laser diodes, which can couple light into the light guide 4, for example, via a reflector. When an electrical voltage is applied to the light source 5, light 6 is coupled into the light guide 4. The light source 5 can have a cooling device for actively cooling the light source 5.
In Figur 2 A, Figur 2B und Figur 2C ist jeweils ein Querschnitt durch eine Ausgestaltung des Lichtleiters 4 dargestellt. Der Lichtleiter 4 umfasst einen Kern 4e und einen den Kern 4e umgebende Mantelfläche 4c, wobei der Kern 4e einen höheren Brechungsindex aufweist als die Mantelfläche 4c. Der Lichtleiter 4 weist vorzugsweise Fasern aus Glas und/oder Kunststoff als Kern 4e auf. Dadurch dass der Lichtleiters 4 Fasern aufweist, insbesondere aus Glas und/oder Kunststoff, wird die Lichtführung flexibel gestaltbar. Alternativ oder zusätzlich kann der Lichtleiter 4 eine Flüssigkeit als Kern 4e, insbesondere ein Gel als Transportmedium aufweisen. Die Verwendung einer Flüssigkeit oder eines Gels als T ransportmedium bietet eine stärkere Lichtausbeute als bei anderen Lichtleitern. Der Lichtleiter 4 kann zumindest teilweise lichtstreuend und/oder transparent, insbesondere optisch transparent, ausgebildet sein. Bevorzugt ist der Lichtleiter 4 flexibel, d.h. biegsam ausgebildet. Durch die Verwendung des flexiblen Lichtleiter 4 zur Leitung von Licht 6 kann das Licht 6 vorteilhafterweise mit geringem Aufwand an eine beliebige Position der Verbundscheibe 10 transportiert werden. Der Lichtleiter 4 hat einen Durchmesser d von beispielsweise 90 pm, 200 pm oder 380 pm und ist dazu geeignet über die Mantelfläche 4c entlang seiner Erstreckungslänge und/oder am zweiten Ende 4b Licht 6 zu emittieren. Der Lichtleiter 4 kann auch aus einer einzelnen Faser bestehen, die einen dicken Durchmesser aufweist. Der Durchmesser der einzelnen Faser kann dann in Millimeter Bereich liegen. Das Licht 6 wird dabei über eine Stirnfläche oder Mantelfläche 4c des Lichtleiters 4 am ersten Ende 4a in den Lichtleiter 4 eingekoppelt. Dazu ist an dem ersten Ende 4a des Lichtleiters 4 die Lichtquelle 5 angeordnet. Die Lichtquelle 5 besteht beispielsweise aus einer oder mehreren Leuchtdiode LED, einer OLED, einer Leuchtdiode (TOLED), und/oder aus einer Laserdiode, die beispielsweise über einen Reflektor Licht in den Lichtleiter 4 einkoppeln kann. Bei Anlegen einer Spannung an die Lichtquelle 5 wird Licht 6 in den Lichtleiter 4 eingekoppelt. Die Lichtquelle 5 kann eine Kühleinrichtung zum aktiven Kühlen der Lichtquelle 5 aufweisen. Figure 2A, Figure 2B and Figure 2C each show a cross-section through an embodiment of the light guide 4. The light guide 4 comprises a core 4e and a lateral surface 4c surrounding the core 4e, wherein the core 4e has a higher refractive index than the lateral surface 4c. The light guide 4 preferably has fibers made of glass and/or plastic as the core 4e. Because the light guide 4 has fibers, in particular made of glass and/or plastic, the light guidance can be designed flexibly. Alternatively or additionally, the light guide 4 can have a liquid as the core 4e, in particular a gel as the transport medium. The use of a liquid or a gel as the transport medium offers a higher light yield than with other light guides. The light guide 4 can be at least partially light-scattering and/or transparent, in particular optically transparent. The light guide 4 is preferably flexible, i.e. bendable. By using the flexible light guide 4 to guide light 6, the light 6 can advantageously be transported to any position of the composite pane 10 with little effort. The light guide 4 has a diameter d of, for example, 90 pm, 200 pm, or 380 pm and is suitable for emitting light 6 via the lateral surface 4c along its extended length and/or at the second end 4b. The light guide 4 can also consist of a single fiber with a thick diameter. The diameter of the individual fiber can then be in the millimeter range. The light 6 is coupled into the light guide 4 via an end face or lateral surface 4c of the light guide 4 at the first end 4a. For this purpose, the light source 5 is arranged at the first end 4a of the light guide 4. The light source 5 consists, for example, of one or more light-emitting diodes (LEDs), an OLED, a light-emitting diode (TOLED), and/or a laser diode, which can couple light into the light guide 4, for example, via a reflector. When a voltage is applied to the light source 5, light 6 is coupled into the light guide 4. The light source 5 may have a cooling device for actively cooling the light source 5.
Der Lichtleiter 4 kann das Licht 6 an dem zweiten End 4b und/oder an seiner Mantelfläche 4c entlang seiner Erstreckungslänge in der Verbundscheibe 10 streuen, so dass der Lichtleiter 4 an dem zweiten Ende 4b und/oder über seine Erstreckungslänge leuchtet. The light guide 4 can scatter the light 6 at the second end 4b and/or at its lateral surface 4c along its extension length in the composite pane 10, so that the light guide 4 shines at the second end 4b and/or over its extension length.
Die Emission von Licht 6 kann sich über einen ausgedehnten Abschnitt des Lichtleiters 4 erstrecken oder punktförmig erfolgen. The emission of light 6 can extend over an extended section of the light guide 4 or can occur in a point-like manner.
In Figur 2 A weist der Lichtleiter 4 einen runden Querschnitt auf. Figur 2 B zeigt einen Lichtleiter 4, der einen rechteckigen Querschnitt aufweist und in Figur 2 C ist der Lichtleiter 4 planar ausgebildet. In Figure 2A, the light guide 4 has a round cross-section. Figure 2B shows a light guide 4 with a rectangular cross-section, and in Figure 2C, the light guide 4 is planar.
Die Figur 3 zeigt eine Querschnittsdarstellung durch eine Weiterbildung der erfindungsgemäßen Verbundscheibenanordnung 101 , die eine Verbundscheibe 10 mit dem Lichtleiter 4 und der Lichtquelle 5 umfasst, wie in Figur 1 illustriert. Figure 3 shows a cross-sectional view through a further development of the composite pane arrangement 101 according to the invention, which comprises a composite pane 10 with the light guide 4 and the light source 5, as illustrated in Figure 1.
Auch in dieser Ausgestaltung enthält die Verbundscheibe 10 die Außenscheibe 1 mit der innenseitigen Oberfläche II, die Innenscheibe 2 mit der außenseitigen Oberfläche III und die Zwischenschicht, welche die innenseitige Oberfläche II der Außenscheibe 1 mit der außenseitigen Oberfläche III der Innenscheibe 2 über die Scheibenfläche miteinander verbindet. Die Außenscheibe 1 und die Innenscheibe 2 bestehen weiterhin aus Kalk-Natron- Glas und weisen beispielsweise eine Dicke von jeweils 1 ,5 mm oder 1 ,1 mm auf. Die Zwischenschicht 3 ist thermoplastisch und beispielsweise als eine mehrlagige Folie aus Polyvinylbutyral (PVB) mit einer Gesamtdicke von 0,86 mm ausgebildet. Die Außenscheibe 1 kann vorgespanntes, teilvorgespanntes oder nicht-vorgespanntes Glas aufweisen. Die Innenscheibe 1 , die Außenscheibe 2 und die Zwischenschicht 3 sind beispielsweise klar (weder getönt noch gefärbt). Alternativ kann die Zwischenschicht 3 eine getönte, insbesondere eine dunkle Tönung (grau, braun, blau) oder gefärbte PVB-Folie aufweisen. Alternativ oder zusätzlich kann die Außenscheibe 1 dunkel (grau, braun, blau) getönt sein. Wie bereits bei Figur 1 beschrieben ist an der außenseitigen Oberfläche III der Innenscheibe 2 die lichtreflektierende Schicht 9 angeordnet. In this embodiment, the composite pane 10 also contains the outer pane 1 with the inner surface II, the inner pane 2 with the outer surface III, and the intermediate layer, which connects the inner surface II of the outer pane 1 to the outer surface III of the inner pane 2 across the pane surface. The outer pane 1 and the inner pane 2 are still made of soda-lime glass and each have a thickness of, for example, 1.5 mm or 1.1 mm. The intermediate layer 3 is thermoplastic and is designed, for example, as a multi-layer film made of polyvinyl butyral (PVB) with a total thickness of 0.86 mm. The outer pane 1 can comprise tempered, partially tempered, or non-tempered glass. The inner pane 1, the outer pane 2, and the intermediate layer 3 are, for example, clear (neither tinted nor colored). Alternatively, the intermediate layer 3 can comprise a tinted, in particular a dark tint (gray, brown, blue) or colored PVB film. Alternatively or additionally, the outer pane 1 can be dark tinted (gray, brown, blue). As already described in Figure 1, the light-reflecting layer 9 is arranged on the outer surface III of the inner pane 2.
Der Lichtleiter 4 ist mit dem zweitem Ende 4b teilweise zwischen Außenscheibe 1 und Innenscheibe 2 angeordnet. Das Licht 6 wird an dem zweiten Ende 4b über das Lichteinkopplungsmittel 7 in die Innenscheibe 2 eingekoppelt. The light guide 4 is arranged with the second end 4b partially between the outer pane 1 and the inner pane 2. The light 6 is coupled into the inner pane 2 at the second end 4b via the light coupling means 7.
Die Verbundscheibenanordnung 101 aus Figur 3 hat einen ähnlichen Aufbau wie die Verbundscheibenanordnung 101 aus Figur 1. Im Unterschied zur Figur 1 weist die Verbundscheibe 10 aus Figur 3 mehrere Lichtauskopplungsmittel 8 auf. Die Lichtauskopplungsmittel 8 sind auf oder in einer innenseitigen Oberfläche IV der Innenscheibe 2 angebracht. Jedes Lichtauskopplungsmittel 8 koppelt das auf das Lichtauskopplungsmittel 8 auftreffendende Licht 6 aus der Innenscheibe 2 aus. Die Lichtauskopplungsmittel 8 können aus einem Beschichtungsmaterial, Störstellen, Streuzentren, Aussparungen in der Oberfläche IV oder als Mikrorisse ausgebildet sein. Die Lichtauskopplungsmittel 8 koppeln und verteilen die auszukoppelnde Lichtstrahlung 6 diffus aus. Die innenseitige Oberfläche IV der Innenscheibe 2 kann stellenweise mehrere Lichtauskopplungsmittel 8 aufweisen. Alternativ kann die innenseitigen Oberfläche IV der Innenscheibe 2 das Licht 6 punktuell oder entlang der gesamten Erstreckungslänge emittieren. The composite pane arrangement 101 from Figure 3 has a similar structure to the composite pane arrangement 101 from Figure 1. In contrast to Figure 1, the composite pane 10 from Figure 3 has a plurality of light extraction means 8. The light extraction means 8 are mounted on or in an inner surface IV of the inner pane 2. Each light extraction means 8 couples the light 6 incident on the light extraction means 8 out of the inner pane 2. The light extraction means 8 can be formed from a coating material, defects, scattering centers, recesses in the surface IV, or as microcracks. The light extraction means 8 diffusely couple and distribute the light radiation 6 to be coupled out. The inner surface IV of the inner pane 2 can have a plurality of light extraction means 8 in places. Alternatively, the inner surface IV of the inner pane 2 can emit the light 6 pointwise or along the entire extension length.
Die Verbundscheibe 10 kann mit einem Funktionselement im zentralen Bereich der Verbundscheibe 10 ausgestattet sein. Das Funktionselement kann ein PDLC- Funktionselement sein, das an allen Seiten in die Zwischenschicht eingelagert ist. The composite pane 10 can be equipped with a functional element in the central region of the composite pane 10. The functional element can be a PDLC functional element embedded in the intermediate layer on all sides.
Alternativ können auch weitere, hier nicht dargestellte Zwischenschichten zwischen der Außenscheibe 1 und der Innenscheiben 2 angeordnet sein, wobei der Lichtleiter 4 zwischen der Außenscheibe 1 und der Innenscheibe 2 angeordnet ist. Alternatively, further intermediate layers, not shown here, can be arranged between the outer pane 1 and the inner pane 2, wherein the light guide 4 is arranged between the outer pane 1 and the inner pane 2.
Bei der Herstellung der Verbundscheibe 10 wird die Außenscheibe 1 durch Lamination über die Zwischenschichten 3 mit der Innenscheibe 2 verbunden. Die Außenscheibe 1 und die Innenscheibe 2 sind bei den dafür üblichen Temperaturen und Drücken sehr starr und unnachgiebig. Die Zwischenschicht 3 ist dann plastisch. During the production of the composite pane 10, the outer pane 1 is bonded to the inner pane 2 by lamination via the intermediate layers 3. The outer pane 1 and the The inner pane 2 is very rigid and unyielding at typical temperatures and pressures. The intermediate layer 3 is then plastic.
Der Lichtleiter 4 hat einen Durchmesser d von jeweils 90 pm, 200 pm oder 380 pm. Das Licht 6 wird über eine Stirnfläche des Lichtleiters 4 am ersten Ende 4a in den Lichtleiter 4 eingekoppelt. Dazu ist an seinem ersten Ende 4a des Lichtleiters 4 die Lichtquelle 5 angeordnet. Die Lichtquelle 5 ist beispielsweise ein Lichtmodul, eine oder mehrere Leuchtdioden LED, eine OLED, eine transparente Leuchtdiode (TOLED), und/oder eine Laserdiode, wie in Figur 1 beschrieben. The light guide 4 has a diameter d of 90 pm, 200 pm, or 380 pm, respectively. The light 6 is coupled into the light guide 4 via an end face of the light guide 4 at the first end 4a. For this purpose, the light source 5 is arranged at the first end 4a of the light guide 4. The light source 5 is, for example, a light module, one or more light-emitting diodes (LEDs), an OLED, a transparent light-emitting diode (TOLED), and/or a laser diode, as described in Figure 1.
Die Verbundscheibe 10 weist einen Durchsichtbereich und einen Randbereich auf. Im Randbereich ist eine Abdeckschicht 11 angeordnet. Die Verbundscheibe 10 umfasst auch eine umlaufende Scheibenkante. Dabei erstreckt sich die Abdeckschicht 11 umlaufend entlang der gesamten umlaufenden Scheibenkante. In dieser Ausgestaltung erstreckt sich die Abdeckschicht 11 rahmenartig im Randbereich der Verbundscheibe 101. Die Abdeckschicht 11 umrahmt den Durchsichtbereich. Im Durch Sichtbereich weist die Verbundscheibe 10 keine Abdeckschicht 11 auf. Der Durchsichtbereich der Verbundscheibe 101 macht mindestens 70% der Oberfläche der Verbundscheibe 10 aus. Die Abdeckschicht 11 ist blickdicht, dunkel, insbesondere schwarz oder grau. Die Abdeckschicht 11 ist aus einer Druckfarbe ausgebildet. The composite pane 10 has a see-through area and an edge area. A cover layer 11 is arranged in the edge area. The composite pane 10 also comprises a circumferential pane edge. The cover layer 11 extends circumferentially along the entire circumferential pane edge. In this embodiment, the cover layer 11 extends like a frame in the edge area of the composite pane 101. The cover layer 11 frames the see-through area. In the see-through area, the composite pane 10 has no cover layer 11. The see-through area of the composite pane 101 makes up at least 70% of the surface of the composite pane 10. The cover layer 11 is opaque, dark, in particular black or gray. The cover layer 11 is formed from a printing ink.
Alternativ kann die Abdeckschicht 11 zumindest abschnittsweise entlang der umlaufenden Scheibenkante angeordnet sein. Die Breite des Randbereichs kann variieren. In dieser Ausgestaltung wird die Breite des Randbereichs von der Scheibenkante gemessen und beträgt beispielsweise 10 mm, 50 mm oder 100 mm. Die Abdeckschicht 11 und der Abschnitt B des Lichtleiters 4 überlappen sich in Durchsichtrichtung durch die Verbundscheibe 10. Die Breite der Abdeckschicht 11 entspricht der Länge B. Alternatively, the cover layer 11 can be arranged at least partially along the circumferential edge of the pane. The width of the edge region can vary. In this embodiment, the width of the edge region is measured from the edge of the pane and is, for example, 10 mm, 50 mm, or 100 mm. The cover layer 11 and section B of the light guide 4 overlap in the viewing direction through the composite pane 10. The width of the cover layer 11 corresponds to the length B.
In Figur 4 ist eine weitere Ausgestaltung der erfindungsgemäße Verbundscheibenanordnung 101 dargestellt, die eine erfindungsgemäße Verbundscheibe 10 mit dem Lichtleiter 4 und der Lichtquelle 5 umfasst, wie in Figur 1 illustriert. Figure 4 shows a further embodiment of the composite pane arrangement 101 according to the invention, which comprises a composite pane 10 according to the invention with the light guide 4 and the light source 5, as illustrated in Figure 1.
Auch in dieser Ausgestaltung enthält die Verbundscheibe 10 die Außenscheibe 1 mit der innenseitigen Oberfläche II, die Innenscheibe 2 mit der außenseitigen Oberfläche III und die Zwischenschicht, welche die innenseitige Oberfläche II der Außenscheibe 1 mit der außenseitigen Oberfläche III der Innenscheibe 2 über die Scheibenfläche miteinander verbindet. Die Außenscheibe 1 und die Innenscheibe 2 bestehen weiterhin aus Kalk-Natron- Glas und weisen beispielsweise eine Dicke von jeweils 1 ,5 mm oder 1 ,1 mm auf. Die Zwischenschicht 3 ist thermoplastisch und beispielsweise als eine mehrlagige Folie aus Polyvinylbutyral (PVB) mit einer Gesamtdicke von 0,86 mm ausgebildet. In this embodiment, the composite pane 10 also contains the outer pane 1 with the inner surface II, the inner pane 2 with the outer surface III and the intermediate layer, which connects the inner surface II of the outer pane 1 with the outer surface III of the inner pane 2 across the pane surface. The outer pane 1 and the inner pane 2 are also made of soda-lime glass and each have a thickness of, for example, 1.5 mm or 1.1 mm. The intermediate layer 3 is thermoplastic and is formed, for example, as a multilayer film of polyvinyl butyral (PVB) with a total thickness of 0.86 mm.
Die Verbundscheibenanordnung 101 aus Figur 4 hat einen ähnlichen Aufbau wie die Verbundscheibenanordnung 101 aus Figur 1. Im Unterschied zur Figur 1 weist Die Verbundscheibe 10 aus Figur 4 zwischen der Innenscheibe 2 und der Zwischenschicht 3 eine Lichtleitschicht 3c auf. Das zweite, innerhalb der Verbundscheibe 10 angeordnete Ende 4b des Lichtleiters 4 koppelt über das Lichteinkopplungsmittel 7 das von der Lichtquelle 5 emittierte Licht 6 in die Lichtleitschicht 3c ein. Das von dem Lichtleiter 4 emittierte Licht 6 propagiert in der Lichtleitschicht 3c. Der Brechungsindex der Lichtleitschicht 3c ist größer als der Brechungsindex der Innenscheibe 2. Die Lichtleitschicht 3c kann als eine lichtleitende Folie, eine lichtleitende Beschichtung oder eine Dünnglasscheibe ausgebildet sein, wobei die Lichtleitschicht 3c eine Dicke von 1000 pm, 500 pm oder weniger aufweist. Insbesondere besteht die Dünnglasscheibe aus Klarglas. The composite pane arrangement 101 from Figure 4 has a similar structure to the composite pane arrangement 101 from Figure 1. In contrast to Figure 1, the composite pane 10 from Figure 4 has a light-guiding layer 3c between the inner pane 2 and the intermediate layer 3. The second end 4b of the light guide 4, arranged within the composite pane 10, couples the light 6 emitted by the light source 5 into the light-guiding layer 3c via the light-coupling means 7. The light 6 emitted by the light guide 4 propagates in the light-guiding layer 3c. The refractive index of the light-guiding layer 3c is greater than the refractive index of the inner pane 2. The light-guiding layer 3c can be formed as a light-guiding film, a light-guiding coating, or a thin glass pane, wherein the light-guiding layer 3c has a thickness of 1000 pm, 500 pm, or less. In particular, the thin glass pane is made of clear glass.
Im Unterschied zur Figur 1 weist die Verbundscheibe 10 aus Figur 4 mehrere Lichtauskopplungsmittel 8 auf. Zwei Lichtauskopplungsmittel 8 sind auf oder in der innseitigen Oberfläche der Lichtleitschicht 3c angebracht. Alternativ oder zusätzlich können Lichtauskopplungsmittel 8 auf oder in der außenseitigen Oberfläche III der Innenscheibe 2 angebracht sein. Jedes Lichtauskopplungsmittel 8 koppelt das auf das Lichtauskopplungsmittel 8 auftreffendende Licht 6 aus der Lichtleitschicht 3c aus. Die Lichtauskopplungsmittel 8 können aus einem Beschichtungsmaterial, Störstellen, Streuzentren, Aussparungen oder als Mikrorissen in der Lichtleitschicht 3c ausgebildet sein. Die Lichtauskopplungsmittel 8 koppeln und verteilen die auszukoppelnde Lichtstrahlung 6 diffus aus. Die Lichtleitschicht 3c kann stellenweise mehrere Lichtauskopplungsmittel 8 aufweisen. In contrast to Figure 1, the composite pane 10 of Figure 4 has a plurality of light extraction means 8. Two light extraction means 8 are arranged on or in the inner surface of the light-guiding layer 3c. Alternatively or additionally, light extraction means 8 can be arranged on or in the outer surface III of the inner pane 2. Each light extraction means 8 extracts the light 6 incident on the light extraction means 8 from the light-guiding layer 3c. The light extraction means 8 can be formed from a coating material, defects, scattering centers, recesses, or as microcracks in the light-guiding layer 3c. The light extraction means 8 diffusely extract and distribute the light radiation 6 to be extracted. The light-guiding layer 3c can have a plurality of light extraction means 8 in some places.
Die Lichtquelle 5 kann einfarbiges Licht 6 oder verschiedene Akzente durch farbiges Licht 6 emittieren. Unterschiedliche Farben lassen eine attraktive Beleuchtung des Fahrzeugs gut sichtbar darstellen. The light source 5 can emit single-color light 6 or various accents through colored light 6. Different colors allow attractive lighting of the vehicle to be clearly visible.
Die Verbundscheibe 10 kann in diesem Beispiel auf einem umlaufenden Randbereich der innenseitigen Oberfläche II der Außenscheibe 1 die opake Abdeckschicht 11 aufweisen, beispielsweise einen Schwarzdruck aus einer keramischen Farbe, die durch Einbrennen eine feste Verbindung mit der gläsernen Oberfläche II der Außenscheibe 1 eingeht. Die Abdeckschicht 11 hat die Aufgabe, die Durchsicht von außen auf den Lichtleiter 4 und die Klebestellen zu verdecken, mit denen die Verbundscheibe 10 in eine Fahrzeugkarosserie eingeklebt ist. In this example, the composite pane 10 can have the opaque covering layer 11 on a peripheral edge region of the inner surface II of the outer pane 1, for example a black print made of a ceramic paint which, when fired, forms a forms a firm connection with the glass surface II of the outer pane 1. The cover layer 11 has the task of concealing the view from the outside of the light guide 4 and the adhesive points with which the composite pane 10 is glued into a vehicle body.
Es versteht sich, dass die Lichtleitschicht 3c nicht oder nicht nur entlang einer Seitenkante der Innenscheibe angeordnet sein muss, sondern beliebig, beispielsweise vollflächig an der außenseitigen Oberfläche III angeordnet sein kann. Insbesondere können eine oder mehrere Abschnitte der Lichtleitschicht 3c wellenartig, z.B. in Form einer Sinuswelle, ausgebildet sein. It is understood that the light-guiding layer 3c need not be arranged along a side edge of the inner pane, or not only along it, but can be arranged arbitrarily, for example, over the entire surface III of the outer pane. In particular, one or more sections of the light-guiding layer 3c can be wave-shaped, e.g., in the form of a sine wave.
Wie anhand der Figuren 1 bis 4 dargestellt, ist mittels der Verbundscheibenanordnung 101 eine effiziente Beleuchtung und Akzentbeleuchtung eines Fahrzeuginnenraums realisierbar. As shown in Figures 1 to 4, efficient illumination and accent lighting of a vehicle interior can be realized by means of the composite pane arrangement 101.
Bezugszeichenliste: List of reference symbols:
1 Außenscheibe 1 outer pane
2 Innenscheibe 2 inner pane
3 Zwischenschicht 3 Intermediate layer
3c Lichtleitschicht 3c Light-guiding layer
4 Lichtleiter 4 light guides
4a erstes Ende des Lichtleiters 4 4a first end of the light guide 4
4b zweites Ende des Lichtleiters 4 4b second end of the light guide 4
4c Mantelfläche des Lichtleiters 4 4c Surface of the light guide 4
4e Kern des Lichtleiters 4 4e Core of the light guide 4
5 Lichtquelle 5 Light source
6 Licht 6 light
7 Lichteinkopplungsmittel 7 Light coupling agents
8 Lichtauskopplungsmittel 8 Light extraction means
9 lichtreflektierende Schicht 9 light-reflecting layer
10 Verbundscheibe 10 Composite pane
11 Abdeckschicht 11 Cover layer
101 Verbundscheibenanordnung 101 Composite pane arrangement
A Länge des Lichtleiters 4 außerhalb der Verbundscheibe 10A Length of the light guide 4 outside the composite pane 10
B Länge des Lichtleiters 4 innerhalb der Verbundscheibe 10 d Durchmesser des Lichtleiters 4 I außenseitige Oberfläche der Außenscheibe 1B Length of the light guide 4 within the composite disc 10 d Diameter of the light guide 4 I outside surface of the outer pane 1
II innenseitige Oberfläche der Außenscheibe 1II inside surface of the outer pane 1
III außenseitige Oberfläche der Innenscheibe 2III outer surface of the inner pane 2
IV innenseitige Oberfläche der Innenscheibe 2 IV Inside surface of the inner pane 2
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP24170743.9 | 2024-04-17 | ||
| EP24170743 | 2024-04-17 |
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| WO2025219042A1 true WO2025219042A1 (en) | 2025-10-23 |
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ID=90789689
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2025/058389 Pending WO2025219042A1 (en) | 2024-04-17 | 2025-03-27 | Composite pane arrangement having a light source and a light guide |
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| WO (1) | WO2025219042A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005054915A1 (en) | 2003-12-02 | 2005-06-16 | Koninklijke Philips Electronics N.V. | Light-guiding assembly and automotive vehicle roof |
| WO2010049638A1 (en) | 2008-10-27 | 2010-05-06 | Saint-Gobain Glass France | Light-emitting diode module for a vehicle, and productions |
| WO2013053629A1 (en) | 2011-10-10 | 2013-04-18 | Saint-Gobain Glass France | Disk having an illuminated switch surface |
| WO2015095288A2 (en) | 2013-12-19 | 2015-06-25 | Corning Incorporated | Textured surfaces for display applications |
| WO2019170330A1 (en) | 2018-03-06 | 2019-09-12 | Saint-Gobain Glass France | Composite pane having a functional element and illumination |
-
2025
- 2025-03-27 WO PCT/EP2025/058389 patent/WO2025219042A1/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005054915A1 (en) | 2003-12-02 | 2005-06-16 | Koninklijke Philips Electronics N.V. | Light-guiding assembly and automotive vehicle roof |
| WO2010049638A1 (en) | 2008-10-27 | 2010-05-06 | Saint-Gobain Glass France | Light-emitting diode module for a vehicle, and productions |
| WO2013053629A1 (en) | 2011-10-10 | 2013-04-18 | Saint-Gobain Glass France | Disk having an illuminated switch surface |
| WO2015095288A2 (en) | 2013-12-19 | 2015-06-25 | Corning Incorporated | Textured surfaces for display applications |
| WO2019170330A1 (en) | 2018-03-06 | 2019-09-12 | Saint-Gobain Glass France | Composite pane having a functional element and illumination |
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