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WO2025051592A1 - Unité de vitrage ayant un panneau de vitrage éclairable - Google Patents

Unité de vitrage ayant un panneau de vitrage éclairable Download PDF

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Publication number
WO2025051592A1
WO2025051592A1 PCT/EP2024/073978 EP2024073978W WO2025051592A1 WO 2025051592 A1 WO2025051592 A1 WO 2025051592A1 EP 2024073978 W EP2024073978 W EP 2024073978W WO 2025051592 A1 WO2025051592 A1 WO 2025051592A1
Authority
WO
WIPO (PCT)
Prior art keywords
pane
illuminable
face
light
frame part
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
Application number
PCT/EP2024/073978
Other languages
German (de)
English (en)
Inventor
Bernard Nghiem
Sascha BUTHMANN
Christian Petersen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saint Gobain Sekurit France
Original Assignee
Saint Gobain Sekurit France
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Saint Gobain Sekurit France filed Critical Saint Gobain Sekurit France
Publication of WO2025051592A1 publication Critical patent/WO2025051592A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0095—Light guides as housings, housing portions, shelves, doors, tiles, windows, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
    • B32B17/10036—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
    • B32B17/10082—Properties of the bulk of a glass sheet
    • B32B17/1011—Properties of the bulk of a glass sheet having predetermined tint or excitation purity
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10651—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer comprising colorants, e.g. dyes or pigments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10761—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing vinyl acetal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • G02B6/0031—Reflecting element, sheet or layer
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/41—Opaque
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/412—Transparent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/414—Translucent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/538—Roughness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/732—Dimensional properties
    • B32B2307/737—Dimensions, e.g. volume or area
    • B32B2307/7375—Linear, e.g. length, distance or width
    • B32B2307/7376—Thickness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2419/00—Buildings or parts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/08—Cars

Definitions

  • the invention lies in the technical field of window manufacturing and relates to a window assembly with an illuminable window, as well as a method for its production. Furthermore, the invention relates to a use of the window assembly according to the invention.
  • Laminated panes are manufactured in large quantities in industrial series production, for example for windshields in motor vehicles. They generally consist of an outer pane, an inner pane, and a thermoplastic interlayer that fully bonds the outer pane to the inner pane.
  • the thermoplastic interlayer is typically formed from one or more films made of a thermoplastic material such as polyvinyl butyral (PVB), which, in addition to their adhesive properties, also exhibits high toughness and high acoustic damping.
  • PVB polyvinyl butyral
  • the thermoplastic interlayer prevents the laminated pane from shattering in the event of damage. Rather, the laminated pane only develops cracks when subjected to damaging influences, but otherwise remains dimensionally stable.
  • single panes are also used, which, thanks to tempering, have increased impact and shock resistance compared to standard flat glass.
  • Such single panes commonly referred to as “toughened safety glass,” are used, for example, as side or roof windows in motor vehicles.
  • Illumination of windows is often desired, for example in vehicle construction, where flat window lighting, window contour lighting, accent lighting or functional lighting is very attractive and, in the case of functional lighting, can also be necessary and safety-relevant, for example to enable the user to operate a certain function even in the dark.
  • electro-optical functional elements typically contain an active layer between two surface electrodes.
  • the optical properties of the active layer, in particular the transmission of light, can be modified by a voltage applied to the surface electrodes.
  • electrochromic functional elements e.g., US20120026573A1 and W02012007334A1
  • SPD functional elements e.g., EP0876608B1 and WO2011033313A1
  • independent illumination of windows is not possible with electro-optical functional elements. Rather, the lighting conditions of the external environment are crucial.
  • the pane therefore serves as a flat light guide for the coupled light.
  • special measures are required to achieve diffuse scattering or reflection of the coupled light.
  • the coupling out of light by means of reflective layers on the pane or the introduction of microstructures (scattering centers) into the surface of the pane is known.
  • W02007/077099 describes a composite pane in which light is coupled into a polycarbonate layer at an end surface, totally reflected at the optical interfaces of the polycarbonate layer and coupled out at dome-shaped scattering centers through diffuse scattering.
  • FR 1158720 A1 shows a pane arrangement with a frame part, in which light can be coupled into the front surface via a light guide.
  • the light guide is bonded to the pane by means of an adhesive that ensures good optical coupling between the light guide and the pane.
  • the object of the present invention is to avoid the aforementioned disadvantages and to provide an improved pane arrangement with a mechanically stable and simple structure, in which a good mechanical connection between the frame part and the pane is present.
  • a separate light guide as in FR 1158720 A1 should be dispensed with.
  • a good coupling of the light onto the front side of the illuminable pane should be possible.
  • the illuminable pane should be easy and cost-effective to manufacture in industrial series production.
  • the pane arrangement according to the invention comprises an illuminable pane (luminous pane), which is preferably designed as a flat light guide and is thus suitable for guiding light by means of total reflection within the pane.
  • illuminable pane luminous pane
  • the pane is flat.
  • the pane is, for example, a flat pane of glass.
  • the illuminable pane can be flat (i.e., non-curved) or curved.
  • the two main surfaces of the pane are preferably, but not necessarily, parallel.
  • the disk is flat (non-curved), it has a non-curved plane.
  • a normal to the disk can be constructed at any point, with the normals always being equal.
  • a locally tangential, non-curved plane can be constructed at any point on the disk, with a tangent being possible on any tangential plane.
  • the pane has a (circumferential) edge surface or end surface that connects the two opposite surfaces (in the see-through area of the pane in the case of transparent panes).
  • the term "main surface” is used here and below for the two opposite surfaces to distinguish them from the circumferential edge surface.
  • the terms "edge surface” and “end surface” are used synonymously. It is understood that the edge surface is terminal.
  • the edge surface is, for example, flat and, in particular, arranged perpendicular to the two main surfaces, but can also be rounded. In particular, the edge surface can also be curved and, for example, have a C-shaped circular grind ("C-grind").
  • the illuminable pane is preferably transparent.
  • transparent means that the visible light transmission is more than 70%, and in particular more than 75%.
  • opaque means a light transmission of less than 15%, preferably less than 5%, and in particular 0%.
  • the illuminable disc is preferably designed as a flat light guide and is suitable for guiding light coupled into the disc laterally or at the front surface by total reflection,
  • the two main surfaces of the disc each form an optical interface with the environment (e.g., air or a thermoplastic material such as polyvinyl butyral), at which total internal reflection of the light coupled into the disc can occur.
  • Essential for the function as an optical interface is a difference in the optical refractive index of the materials adjacent to the interface, which depends on the wavelength of the incident light. As is known to those skilled in the art, total internal reflection occurs when the angle of the light incident on an optical interface is sufficiently large (measured with respect to the normal to the interface).
  • total internal reflection refers to the reflection of light at an optical interface caused by a difference in the optical refractive index of the materials forming the optical interface. Total internal reflection is therefore not a reflection from a reflective surface (mirror).
  • the illuminable disc can be designed for homogeneous illumination across the entire surface.
  • the arrangement further comprises a frame part arranged on the end face.
  • the frame part is preferably designed to be circumferential, wherein the frame part preferably completely surrounds the pane.
  • one or more interruptions in the frame part can be provided.
  • the frame part therefore forms a frame or border for the pane, preferably a complete border around the pane, although the border can also be provided only in sections, particularly if one or more interruptions are provided.
  • the border can in particular serve to glue the illuminable pane into a pane frame, e.g. a body frame, as is common, for example, for roof windows of motor vehicles.
  • a reflective surface for reflecting light is arranged on the frame part.
  • the reflective surface is arranged on the frame part at least in certain areas, in particular only in certain areas, i.e., only in one or more areas of the frame part.
  • the arrangement has a light-emitting means for generating light, which is arranged such that the light generated by the light-emitting means can strike the reflection surface.
  • the reflecting surface faces the front surface of the disc.
  • the reflecting surface can be flat (non-curved) or curved.
  • the reflective surface is typically designed as an oblique reflective surface, with the reflective surface having at least one region in which a normal to the reflective surface is directed obliquely to a normal to the pane.
  • oblique is understood to mean that a normal to the reflective surface forms an angle to a normal to the pane that is different from 0° to 90° and lies between 0° and 90°. Preferably, said angle is 45°.
  • the reflecting surface can be flat (non-curved) or curved.
  • a normal to the reflecting surface can be constructed at any point on the reflecting surface, with all normals always having the same orientation. If the reflecting surface is curved, a local tangential (non-curved) plane can be constructed at any point on the reflecting surface, on which a normal can be constructed. It is understood that the normals can also have different directions.
  • the oblique reflection surface has at least one region in which a normal to the reflection surface is directed obliquely to a normal to the pane, i.e., an angle between the normals lies between 0° and 90° and is preferably 45°.
  • a normal to the reflection surface is directed obliquely to a normal to the pane, i.e., an angle between the normals lies between 0° and 90° and is preferably 45°.
  • the term "normal” is to be understood as described above. If the reflection surface is flat (non-curved), the reflection surface is designed such that the normal to the reflection surface is always directed at an angle between 0 and 90° to a normal to the pane and is preferably 90°.
  • the illuminant for generating light is arranged such that the light generated by the illuminant can strike the reflective surface.
  • the reflective surface is designed and arranged such that light generated by the illuminant and striking the reflective surface is reflected to the front surface, coupled into the pane at the front surface, and preferably, but not necessarily, at least partially totally reflected in the pane.
  • the reflective layer is suitable for reflecting the light generated by the illuminant.
  • the invention thus offers the particular advantage that the illuminant does not have to be arranged on the front surface of the pane, which is difficult to implement in practice with a frame part surrounding the pane. Instead, the illuminant can be arranged on the frame part, and the light generated by the illuminant can be coupled into the pane via the front surface through the reflection surface formed on the frame part. This is a great advantage of the arrangement according to the invention, since it is possible for panes with a surrounding frame part to be illuminated independently in a simple and cost-effective manner.
  • the frame part has an inclined surface on which the reflective surface is arranged.
  • the inclined surface of the frame part preferably faces the end face of the pane and can be flat (non-curved) or curved.
  • the reflective surface is preferably formed by a reflective layer arranged on the inclined surface, wherein the reflective layer in particular contains or consists of a metallic layer.
  • the reflective layer is, for example, a layer made of a metallic material such as silver (Ag) or aluminum (Al). This enables a particularly simple and cost-effective design of the reflective surface.
  • a filler layer made of a polymer material is arranged between the reflective surface and the end face of the illuminable pane, which filler layer connects the frame part to the end face of the illuminable pane.
  • the frame part is directly connected to the end face of the illuminable pane by the filler layer, with no further material between the frame part and the end face of the illuminable pane.
  • the light reflected from the reflective surface to the end face crosses the material of the filler layer, so that the material of the filler layer has optical transparency.
  • an optical refractive index of the polymeric material of the fill layer deviates from an optical refractive index of a material of the illuminable pane by less than 10%, in particular less than 5% or even less than 1%.
  • an optical refractive index of the polymeric material of the fill layer is the same, or at least approximately the same, as an optical refractive index of a material of the illuminable pane.
  • the material of the filler layer consists of an optically clear adhesive.
  • Optically clear adhesives usually abbreviated to OCA (Optically Clear Adhesive), are well known to those skilled in the art.
  • Optically clear adhesives are characterized by high optical quality and are particularly common where high optical quality is absolutely essential, since the adhesive layer should be virtually invisible, for example, in displays or touch panels. Therefore, optically clear adhesives are widely used in touch-sensitive displays, for example, to connect them to an LCD display or to connect plastic covers to touch-sensitive displays. Optically clear adhesives are characterized in particular by high light transmission and the fact that low-distortion viewing is possible.
  • the liquid, optically clear adhesive can, in principle, be of any type, as long as it is sufficiently fluid to fill the area between the reflective surface and the front surface of the illuminable panel and allows for curing.
  • the liquid, optically clear adhesive can, for example, contain or consist of polyurethane (PU), polyacrylate, polyacetate resin, casting resin, or a copolymer or mixture thereof.
  • the optically clear adhesive is advantageously made of a casting resin, particularly polyurethane- or silicone-based.
  • the liquid, optically clear adhesive is curable, i.e. it can be irreversibly cured. Typically, it is a plastic that is cured into a polymer-crosslinked state. This distinguishes the curable adhesive significantly from a thermoplastic (e.g. PVB), which is also optically transparent but can always be softened again (i.e. reversibly) by the application of heat. In contrast, the cured, optically clear adhesive can no longer be made flowable once it has cured. The optically clear adhesive is therefore not a thermoplastic. Depending on the adhesive used, curing can occur through thermal curing (i.e.
  • the optically clear adhesive allows for a good mechanical bond between the frame part and the illuminable panel, with excellent processability.
  • the optically clear adhesive is highly transparent for the radiation from the light source reflected from the reflective surface to the front surface of the illuminable panel.
  • the illuminant is bonded to the polymeric material of the filler layer.
  • This design enables particularly simple attachment of the illuminant to the pane arrangement.
  • the filler layer consists of an optically clear adhesive
  • the illuminant can be bonded to the optically clear adhesive in a simple manner, e.g., by curing the optically clear adhesive.
  • the illuminant is attached to the frame part and/or to the filler layer. This allows for a particularly simple method of attaching the illuminant.
  • the illuminant is arranged within, in particular only within, an aligned extension of the frame part when viewed vertically through the pane or in a direction corresponding to the vertical view through the pane.
  • the illuminant is arranged outside an aligned extension of the pane when viewed vertically through the pane or in a direction corresponding to the vertical view through the pane.
  • the illuminant can be arranged within, and in particular only within, an aligned extension of the filler layer when viewed vertically through the pane or in a direction corresponding to the vertical view through the pane. This measure also allows for a particularly simple method of mounting the illuminant.
  • the reflection surface is arranged within, in particular only within, a tangential extension of the first main surface and a tangential extension of the second main surface, wherein the reflection surface preferably extends from the tangential extension of the first main surface to the tangential extension of the second main surface.
  • the frame part is an injection-molded part made of a polymer material.
  • the frame part can in particular be attached directly to the end face of the illuminable pane and in particular be designed in the form of a frame part injection-molded onto the end face, thereby enabling a particularly strong connection between the frame part and the end face.
  • one region of the end face can be connected directly to the frame part and another region of the end face can be connected directly to the filler layer.
  • the end face of the illuminable pane can only be directly connected to the filler layer.
  • the filling layer is wedge-shaped, in particular with a triangular cross-sectional area.
  • the illuminant serves to generate light for illuminating the illuminable pane, wherein the light generated by the illuminant, after reflection from the reflective surface arranged on the frame part, strikes the end face of the illuminable pane.
  • the light generated by the illuminant preferably falls exclusively on the end face of the illuminable pane, i.e., the light generated by the illuminant is only coupled into the illuminable pane at the end face of the illuminable pane, i.e., at a side edge of the illuminable pane. Accordingly, the light generated by the illuminant is not coupled into the illuminable pane at either the first main surface or the second main surface.
  • the light generated by the illuminant after reflection from the reflective surface, is coupled into the illuminable pane at the end face in such a way that at least a portion of the light is subject to total reflection in the illuminable pane.
  • the light generated by the illuminant can strike the reflection surface in particular in a divergent form (i.e. as a beam cone), with a central beam of the divergent beam cone being reflected onto the end face of the illuminable disc.
  • the central beam is reflected by the reflection surface in such a way that a total reflection of the central beam occurs in the illuminable disc.
  • the collimated light beam is reflected onto the front surface of the illuminable disc.
  • the collimated light beam is reflected from the reflection surface in such a way that total internal reflection of the collimated light beam occurs in the illuminable disc.
  • the illuminant is arranged such that, with a divergent beam cone of the generated light, a central beam is parallel to a normal of the illuminable disc. With a collimated beam, the beam is also preferably parallel to a normal of the illuminable disc. This applies in particular to the attachment of the illuminant to the frame part and/or to the fill layer.
  • the illuminant according to the invention can comprise lenses, mirrors, reflectors, or other light-conducting elements that serve to reflect the light at the reflective surface and couple the reflected light into the illuminable disc at the end face.
  • the illuminant comprises a collimator designed to direct the light generated by the illuminant onto the reflective surface in a collimated manner (i.e., with a parallel beam path).
  • Advantageous light sources include laser diodes, light-emitting diodes (LEDs), or light bulbs, although the invention encompasses any type of light source.
  • the light source can be suitable for generating colored or white light.
  • the light source can also be designed to generate light in the ultraviolet or infrared range.
  • Preferred light colors include red (due to its pronounced signaling effect), green (due to the human eye's high sensitivity to the green color spectrum), and blue (due to its particularly aesthetic and low-glare effect).
  • the light coupled into the illuminable disc can be extracted from the illuminable disc, for example, by scattering the light, e.g., in the area of the main surfaces.
  • one main surface or both main surfaces can each be provided with one or more scattering structures, at which light scattering of the light totally reflected in the disc, for example, occurs, so that light from the illuminable disc can be scattered.
  • a scattering structure is designed in such a way that the condition of total reflection no longer applies at the scattering structure.
  • one or both main surfaces of the disc can be provided with a local roughening that acts as a scattering structure.
  • Such scattering structures can be provided optionally on the first and/or second main surface. Measures for coupling out totally reflected light from a light guide are known to those skilled in the art (see, for example, WO 2007/077099), so they need not be discussed in detail here. Furthermore, these means are not necessary for understanding the invention.
  • the pane arrangement according to the invention thus advantageously also enables the use of the illuminable pane as a flat (curved or non-curved) light guide, whereby light can be coupled into the illuminable pane at the end face in such a way that the angular condition for total internal reflection in the illuminable pane is met.
  • the illuminable pane thus serves as a light guide and can be illuminated, in particular, over a large area and homogeneously. Total internal reflection of the light coupled into the illuminable pane at the end face is advantageous, but not absolutely necessary.
  • the illuminable pane is a glass pane.
  • the illuminable pane is designed, for example, as a single pane that is not connected to other panes, in particular as single-pane safety glass that has been given a particularly high impact and break resistance by tempering.
  • the illuminable pane is also possible for the illuminable pane to be part of a laminated pane.
  • the laminated pane consists of an outer pane and an inner pane, bonded together by lamination via an intermediate layer.
  • the terms "outer pane” and “inner pane” are used only to distinguish between a first and a second pane.
  • the outer pane preferably, but not necessarily, faces the exterior of the laminated pane, and the inner pane faces the interior.
  • the illuminable pane is the inner or outer pane of the composite pane, particularly preferably the inner pane of the composite pane.
  • the inner pane of the laminated pane is the illuminable pane, it may be advantageous if the outer pane is colored and in particular opaque and/or if the intermediate layer is colored and in particular opaque. This allows very attractive design of the composite pane, in which the inner pane is exposed to homogeneous, flat lighting.
  • the illuminable pane may be laminated into the composite pane between the inner pane and the outer pane.
  • the illuminable pane is preferably clamped between two thermoplastic films (e.g., PVB films).
  • the outer pane is colored and/or the thermoplastic film arranged closer to the outer pane is colored and, in particular, opaque.
  • the intermediate layer is therefore preferably colored in sections, in particular opaque. This enables a very attractive design of the composite pane, in which the inner pane is subjected to particularly homogeneous, planar illumination.
  • the illuminable pane and/or the panes of the composite pane are preferably made of glass, particularly preferably soda-lime glass, as is common for window panes.
  • the panes can also be made of other types of glass, e.g. quartz glass, borosilicate glass or aluminosilicate glass, or of rigid, clear plastics, e.g. polycarbonate, polyethylene terephthalate (PET) or polymethyl methacrylate.
  • PET polyethylene terephthalate
  • the panes can be made of untempered, partially tempered or tempered glass.
  • the thickness of the panes can vary greatly and can be adapted to the respective requirements in each individual case.
  • the thickness of the panes is preferably between 0.1 mm and 10 mm, in the case of glass preferably between 1 mm and 5 mm, particularly preferably between 1.4 mm and 3 mm.
  • PET polyethylene terephthalate
  • the illuminable pane and/or the panes of the laminated pane may generally be clear and colorless, but may also be tinted, clouded or colored.
  • the intermediate layer is formed by at least one thermoplastic film.
  • the thermoplastic film comprises at least one thermoplastic polymer, preferably ethylene-vinyl acetate (EVA), polyvinyl butyral (PVB), or polyurethane (PU), or mixtures or copolymers or derivatives thereof.
  • EVA ethylene-vinyl acetate
  • PVB polyvinyl butyral
  • PU polyurethane
  • the thickness of the intermediate layer, and in particular of a thermoplastic film is preferably 0.2 mm to 2 mm, particularly preferably 0.3 mm to 1 mm, for example 0.38 mm or 0.76 mm.
  • a laminated pane is manufactured by lamination using conventional processes known to those skilled in the art, e.g., autoclave processes, vacuum bag processes, vacuum ring processes, calender processes, vacuum laminating machines, or combinations thereof. Lamination is typically performed under the influence of heat, vacuum, and/or pressure.
  • the invention further extends to a method for producing a pane assembly according to the invention with an illuminable pane, as described above.
  • the features of the pane assembly according to the invention apply analogously to the method according to the invention.
  • the method according to the invention comprises the following steps, which do not necessarily have to be performed in the specified order:
  • an illuminable disc having a first main surface and an opposite second main surface, which are connected to one another by a circumferential end surface;
  • a light source for generating light on the frame part in such a way that the light generated by the light source can strike the reflection surface, wherein the reflection surface is designed or arranged in such a way that incident light (generated by the light source) can be reflected to the front surface and coupled into the pane at the front surface and preferably totally reflected in the pane,
  • the invention extends to the use of the pane arrangement according to the invention with an illuminable pane in means of transport on land, in the air or on water, in particular in trains, ships and motor vehicles, for example as a windscreen, rear window, side window and/or roof window, in buildings, particularly in the access area, window area, roof area or facade area, as a built-in component in furniture and appliances.
  • Figure 1 is a cross-sectional view of an embodiment of the pane arrangement according to the invention with an illuminable pane, which is part of a composite pane,
  • Figure 2 shows a flow chart of the method according to the invention.
  • Figure 1 illustrates a cross-sectional view of a disk arrangement, designated overall by reference numeral 1.
  • the cross-sectional view corresponds to a vertical section through the disks.
  • the pane assembly 1 comprises a composite pane 2, shown only partially, with an outer pane 3 and an inner pane 4 (top in Figure 1), which are firmly connected to one another by a thermoplastic intermediate layer 5.
  • the different sides of the outer pane 3 and the inner pane 4 can be designated using conventional Roman numerals.
  • the surface of the outer pane 3 facing the external environment is designated as side 1, and the surface of the outer pane facing the intermediate layer 5
  • side II the surface of the inner pane 4 facing the intermediate layer 5 is referred to as side III and the surface of the inner pane 4 facing the inner environment is referred to as side IV.
  • the end face 8 represents the terminal edge surface of the inner pane 4.
  • the end face 8 is shown in Figure 1 as a flat surface arranged perpendicular to the two main surfaces 6, 7. However, it is also conceivable for the end face 8 to have a curvature, for example in the form of a C-shaped cut.
  • the inner pane 4 is designed as an illuminable pane within the meaning of the invention.
  • the composite pane 2 has a (total) end face 8", which results from the end face 8 of the inner pane and the end face 8' of the outer pane 3, whereby the end face of the intermediate layer 5, which is often set back, is disregarded here.
  • a frame part 9 made of a polymer material is arranged, which is produced by injection molding and completely and preferably continuously surrounds the composite pane 2.
  • the frame part 9 represents a border of the composite pane 2 and is injection molded directly onto the end face 8" of the composite pane 2.
  • a reflective layer 12 (e.g., made of a metallic material such as silver or aluminum) with a reflective surface 13 is arranged on the inclined surface 11.
  • the normal to the reflective surface 13 is arranged at an angle of 45° to the normal of the composite pane 2 or inner pane 4, corresponding to the inclined surface 11.
  • the reflective surface 13 is arranged within a tangential extension of the first main surface 6 and a tangential extension of the second main surface 7 of the inner pane 4, with the reflective surface 13 extending from the tangential extension of the first main surface 6 to the tangential extension of the second main surface 7.
  • a perpendicular projection of the reflective surface 13 onto the end face 8 of the inner pane 4 extends over the entire end face 8 of the inner pane 4.
  • the recess of the frame part 9 or the area between the reflection surface 13 and the end face 8 of the inner pane 4 is filled with a filling layer 10 made of a polymeric material, wherein the filling layer 10 has a wedge shape with a triangular cross-sectional area.
  • Filler layer 10 consists of a cured, optically clear adhesive. As clearly visible in Figure 1, the filler layer 10, made of optically clear adhesive, is directly (immediately) bonded to the reflective layer 12 and the end face 8 of the inner pane 4. The end face 8 of the inner pane 4 is indirectly bonded to the frame part 9 via the filler layer 10, made of optically clear adhesive.
  • the end face 8' of the outer pane 3 (and, if applicable, the intermediate layer 5) is directly bonded to the frame part 9, with a direct bond between the end face 8" of the composite pane 2 and the end face 8' of the outer pane 3 (and, if applicable, the intermediate layer 5).
  • a light source 14 which contains, for example, a light-emitting diode, is arranged on the fill layer 10, as viewed vertically through the composite pane 2, within an aligned extension of the fill layer 10.
  • the light source 14 is firmly connected to the fill layer 10.
  • the light source 14 serves to generate light and is arranged such that the generated light can strike the reflective surface 13.
  • the light generated by the light source 14 can strike the reflective surface 13, in particular in a divergent form (i.e., as a cone of rays), with the light source 14 being directed such that a central ray of the divergent cone of rays strikes the reflective surface 13 parallel to the normal of the composite pane 2 or inner pane 4.
  • a collimated light beam is arranged on the fill layer 10, as viewed vertically through the composite pane 2, within an aligned extension of the fill layer 10.
  • the light source 14 is firmly connected to the fill layer 10.
  • the light source 14 serves to generate light and is arranged such that the generated light can strike the reflective surface 13.
  • the light beam generated by the illuminant 14 is reflected by the reflection surface 13 toward the end face 8 of the inner pane 4 and is coupled at the end face 8 into the inner pane 4, which preferably serves as a planar conductor.
  • the light beam is at least partially coupled into the inner pane 4 in such a way that it is totally reflected at the two main surfaces 6, 7, which belong to the optical interfaces.
  • the totally reflected portion of the light beam can be coupled out of the inner pane 4 in the region of the main surfaces 6, 7 via scattering centers (not shown).
  • the outer pane 3 is transparent or tinted, preferably tinted.
  • the intermediate layer 5 is transparent or tinted, preferably tinted with a light transmittance of more than 50%, so that the composite pane 2 with the illuminable inner pane 4 has a particularly attractive appearance.
  • the composite pane 2 can be coated on one of the sides I to IV with an opaque coating (not shown), such as a black print, Furthermore, the composite pane 2 can have a functional layer (not shown), in particular an IR layer, preferably on side II.
  • FIG. 2 illustrates the method according to the invention using a flowchart. Steps a), b), c), and d) relate to:
  • the invention provides a novel pane arrangement with an illuminable pane and a frame part surrounding the illuminable pane, in which light can be coupled into the pane after reflection from a reflective surface arranged on the frame part on one end face of the pane.
  • the illuminable pane can thus be illuminated even if the end face is not accessible during installation of the pane (e.g. during installation in the body frame of a motor vehicle).
  • the end face does not have to be flat or even, but can in particular have a round grind (C-grind).
  • the pane arrangement in particular with an illuminable pane that is part of a composite pane, can be produced easily, cost-effectively and with high optical quality. In addition, it has particularly high mechanical stability. List of reference symbols

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention se rapporte à une unité de vitrage (1), comprenant : - un panneau de vitrage éclairable (4) ayant une première face principale (6) et une seconde face principale située à l'opposé (7) qui sont interconnectées par une face d'extrémité (8), - une partie de cadre (9) disposée sur la face d'extrémité (8), - une face de réflexion (13) disposée sur la partie de cadre (9), - un moyen d'éclairage (14) pour produire de la lumière, ledit moyen d'éclairage étant agencé de telle sorte que la lumière produite par le moyen d'éclairage (14) peut frapper la face de réflexion (13) ; la face de réflexion (13) étant conçue de telle sorte que la lumière produite par le moyen d'éclairage (14) peut être réfléchie vers la face d'extrémité (8) et couplée dans le panneau de vitrage éclairable (4) au niveau de la face d'extrémité (8) ; la partie cadre (9) présente une face oblique (11) sur laquelle est disposée la face de réflexion (13) ; une couche de remplissage (10) constituée d'un matériau polymère est disposée entre la face de réflexion (13) et la face d'extrémité (8) du panneau de vitrage éclairable (4) ; et la partie cadre (9) est directement reliée à la face d'extrémité (8) du panneau de vitrage éclairable (4) par la couche de remplissage (10).
PCT/EP2024/073978 2023-09-10 2024-08-28 Unité de vitrage ayant un panneau de vitrage éclairable Pending WO2025051592A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP23196429.7 2023-09-10
EP23196429 2023-09-10

Publications (1)

Publication Number Publication Date
WO2025051592A1 true WO2025051592A1 (fr) 2025-03-13

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1158720A (fr) 1955-10-19 1958-06-18 Procédé de séparation des éléments d'un mélange fluide
EP0876608B1 (fr) 1995-11-27 2002-04-17 Fuhr, Günter Procede et dispositif de production de phenomenes de resonance dans des suspensions de particules
WO2007077099A1 (fr) 2006-01-06 2007-07-12 Pilkington Automotive Deutschland Gmbh Vitrage de véhicule avec ensemble de guidage de lumière
KR20080071407A (ko) * 2007-01-30 2008-08-04 삼성전자주식회사 백라이트 유닛과 이를 포함한 액정 표시 장치
WO2011033313A1 (fr) 2009-09-18 2011-03-24 Pilkington Group Limited Vitrage feuilleté
WO2012007334A1 (fr) 2010-07-13 2012-01-19 Saint-Gobain Glass France Dispositif électrochromique
US20120026573A1 (en) 2010-11-08 2012-02-02 Soladigm, Inc. Electrochromic window fabrication methods
FR2980833A1 (fr) * 2011-09-29 2013-04-05 Saint Gobain Vitrage eclairant
US20180074251A1 (en) * 2015-04-03 2018-03-15 Saint-Gobain Glass France Luminous glazing unit for architectural use or use in furnishings or a means of public transport

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1158720A (fr) 1955-10-19 1958-06-18 Procédé de séparation des éléments d'un mélange fluide
EP0876608B1 (fr) 1995-11-27 2002-04-17 Fuhr, Günter Procede et dispositif de production de phenomenes de resonance dans des suspensions de particules
WO2007077099A1 (fr) 2006-01-06 2007-07-12 Pilkington Automotive Deutschland Gmbh Vitrage de véhicule avec ensemble de guidage de lumière
KR20080071407A (ko) * 2007-01-30 2008-08-04 삼성전자주식회사 백라이트 유닛과 이를 포함한 액정 표시 장치
WO2011033313A1 (fr) 2009-09-18 2011-03-24 Pilkington Group Limited Vitrage feuilleté
WO2012007334A1 (fr) 2010-07-13 2012-01-19 Saint-Gobain Glass France Dispositif électrochromique
US20120026573A1 (en) 2010-11-08 2012-02-02 Soladigm, Inc. Electrochromic window fabrication methods
FR2980833A1 (fr) * 2011-09-29 2013-04-05 Saint Gobain Vitrage eclairant
US20180074251A1 (en) * 2015-04-03 2018-03-15 Saint-Gobain Glass France Luminous glazing unit for architectural use or use in furnishings or a means of public transport

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