EP4323692A1 - Beleuchtbare verglasung - Google Patents
Beleuchtbare verglasungInfo
- Publication number
- EP4323692A1 EP4323692A1 EP22720956.6A EP22720956A EP4323692A1 EP 4323692 A1 EP4323692 A1 EP 4323692A1 EP 22720956 A EP22720956 A EP 22720956A EP 4323692 A1 EP4323692 A1 EP 4323692A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pane
- light
- coating
- glazing
- main surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/10165—Functional features of the laminated safety glass or glazing
- B32B17/10174—Coatings of a metallic or dielectric material on a constituent layer of glass or polymer
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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
-
- 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
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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
- B32B17/1077—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing polyurethane
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
- B32B17/10788—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing ethylene vinylacetate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- 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
- B32B17/10807—Making laminated safety glass or glazing; Apparatus therefor
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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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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
- G02B6/0043—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided on the surface of the light guide
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0051—Diffusing sheet or 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
- B32B2250/00—Layers arrangement
- B32B2250/03—3 layers
Definitions
- the invention relates to a glazing arrangement with a light source and a light extraction means, a method for their production and their use.
- Composite panes as glazing made from two or more glass or polymer panes are used in vehicles as windshields, rear windows, side windows and roof windows.
- light from a light source is coupled into a flat light guide in the form of a pane of the glazing using total reflection.
- WO 2010/049638 A1 discloses the coupling of light into a glass pane via a side surface. From WO2013/110885 A1.
- WO2018178591 A1 or WO2019/105855 A1 discloses arranging the light source in a recess and thereby coupling the light into the pane.
- Discs with an illuminated button are known to date, which comprise a light deflecting means for marking an area.
- the light coupled into a pane hits the light deflection means and is deflected in such a way that it leaves the pane.
- the light deflection means usually consists of structures that include particles, dot grids, stickers or imprints. The disadvantage here is that these structures are very clearly visible even when the light source is switched off.
- WO2020/188078 A1 discloses a laminated glazing with a light source.
- the light emitted by the light source is guided through the laminated glazing via a glass substrate or a polymeric interlayer.
- the laminated glazing further has a light input surface for inputting the light emitted from the light source and a light extraction surface for extracting the light.
- US2018/074251 A1 discloses a glazing unit with a light source and a light extraction system containing scattering dielectric particles.
- the object of the present invention is to provide an improved glazing arrangement in which light extraction means are hardly visible even when the light source is switched off.
- the object of the present invention is achieved according to the invention by a glazing arrangement according to claim 1. Preferred embodiments emerge from the dependent claims.
- the glazing arrangement comprises at least a first pane, a light source for generating light that can be coupled into the first pane, and a light output means for coupling light out of the first pane, the pane being provided for at least partially forwarding coupled light.
- the first disc has at least a first major surface and a second major surface.
- the light extraction means are intended to extract the light via one of the two main surfaces.
- the light coupling-out means has a transparent coating with a refractive index that differs from air and from the first pane.
- the transparent coating is applied flatly, at least in sections, to one of the two main surfaces.
- the coating can preferably have titanium oxide (TiOx).
- the refractive index of the transparent coating PB is preferably approximately 2.5. Because the refractive index of the transparent coating PB differs greatly from the refractive index ni_ of the surrounding air and the refractive index of the first pane ns, the light is refracted and coupled out at the transition from pane to coating and at the transition from coating to air.
- the coating is advantageously transparent and thus almost invisible to the human eye even when the at least one light source is switched off.
- the coating can have a layer thickness of 300 nm to 200 ⁇ m, preferably 300 nm to 400 nm.
- a coating in particular a pane or an object, is understood to be transparent if the coating, pane or object has a transmission in the visible spectral range of greater than 20%, preferably 50%, particularly preferably greater than 70%, in particular greater than 85% .
- the coating is roughened.
- the coating acquires a roughness through structuring.
- the coating is at least partially removed after it has been applied to one of the two main surfaces. There is no clean removal of the coating, but residues of the coating remain on one of the two main surfaces.
- the at least partial removal of the coating can take place by means of a laser.
- the coating shows an irregular, rough structure due to the laser treatment and thus has a light-scattering effect.
- the coating can have a structure in the form of circular areas.
- the circular areas can have a diameter of 10 ⁇ m, 200 ⁇ m or up to 1 mm.
- the coating comprises a plurality of body elements, in particular spherical ones.
- the body elements are embedded in the coating.
- the body elements are preferably transparent. Because the light propagating in the first pane is scattered on the body elements, a particularly effective light decoupling is achieved.
- the body elements which are in particular spherical, are elliptical, cylindrical or spheres.
- the light can be coupled out of the light guide using refraction, reflection and scattering.
- the spherical body elements can be partially filled or hollow, in particular filled with air.
- the body elements can additionally be coated with a coating of titanium oxide or a fluorescent substance, so that the scattering of the light is further intensified.
- the body elements as spheres can have a diameter of 1 ⁇ m to 200 ⁇ m, preferably 5 ⁇ m to 100 ⁇ m, particularly preferably 50 ⁇ m to 80 ⁇ m.
- the cylindrical body would have a length of 1 pm to 200 pm, preferably 5 pm to 100 pm, more preferably 50 pm to 80 pm.
- the body elements which are in particular spherical, can have different sizes.
- the body members may be formed from glass and/or polymeric material. The glass and/or the polymer material are preferably transparent.
- the body elements can be arranged in a single layer of the coating.
- the coating is arranged or applied directly on the first main surface (IV) and/or on the second main surface (III). In particular, this is the visible surface of the first pane.
- the coating can cover an area of at least 1 mm 2 , preferably 1000 mm 2 to 1 m 2 .
- the light source of the glazing arrangement according to the invention comprises at least one or more light emitting diodes (LED).
- the light source can additionally or alternatively include an organic light-emitting diode (OLED) or a laser, with the light source preferably being arranged on an end face of the first pane.
- the light source can emit infrared or ultraviolet light, which is preferably converted into visible light by fluorescent or luminescent particles, preferably as a component of the light extraction means.
- the glazing arrangement can additionally comprise a light coupling means which is connected to the first main surface.
- the light source is arranged adjacent to the light coupling means, so that the light from the light source can be coupled at least partially into the first pane via the light coupling means.
- the light in-coupling means is provided to deflect part of the light incident from the light source in transmission by scattering, reflection, refraction or diffraction.
- the glazing arrangement according to the invention has a laminated pane.
- the composite pane comprised the first pane, which is connected to a second pane via an intermediate layer to form the composite pane.
- the two panes and the intervening intermediate layer are preferably connected over their entire surface by lamination.
- the first pane and/or, if present, the second pane preferably contain glass, particularly preferably float glass made from clear glass, very particularly preferably diamond glass.
- the panes may also contain flat glass, such as soda-lime glass, borosilicate glass or quartz glass, or clear plastics, rigid clear plastics, in particular polyethylene, polypropylene, polycarbonate, polymethyl methacrylate, polystyrene, polyamide, polyester, polyvinyl chloride and/or mixtures thereof.
- the first pane and/or second pane are preferably transparent, in particular for use of the panes as a windshield or rear pane of a vehicle or other uses where high light transmission is desired.
- the first pane and preferably also the second pane are made of clear glass.
- the transmission can also be much lower, for example greater than 5%.
- the second pane and/or the intermediate layer can be tinted or colored.
- the thickness of the first pane and/or second pane can vary widely and can thus be perfectly adapted to the requirements of the individual case. Standard thicknesses of 1.0 mm to 25 mm, preferably 1.4 mm to 2.5 mm for automotive glass and preferably 4 mm to 25 mm for furniture, appliances and buildings are preferably used.
- the size of the discs can vary widely and depends on the size of the use according to the invention.
- the first pane and second pane have areas of 200 cm 2 up to 20 m 2 , which are common in vehicle construction and architecture, for example.
- the glazing can have any three-dimensional shape.
- the three-dimensional shape preferably has no shadow zones, so that it can be coated with further coatings, for example by sputtering.
- the panes are planar or slightly or heavily curved in one or more directions of space.
- planar substrates are used.
- the discs can be colorless or colored.
- the first pane and the second pane are connected to one another by at least the intermediate layer.
- the intermediate layer is preferably transparent or tinted or colored.
- the intermediate layer preferably contains or consists of at least one plastic, preferably polyvinyl butyral (PVB), ethylene vinyl acetate (EVA) and/or polyethylene terephthalate (PET).
- the intermediate layer can also be, for example, polyurethane (PU), polypropylene (PP), polyacrylate, polyethylene (PE), polycarbonate (PC), polymethyl methacrylate, polyvinyl chloride, polyacetate resin, casting resins, acrylates, fluorinated ethylene-propylene, polyvinyl fluoride and/or ethylene-tetrafluoroethylene , or contain copolymers or mixtures thereof.
- the intermediate layer can be formed by one film or by a plurality of films arranged one on top of the other, the thickness of a film preferably being from 0.025 mm to 1 mm, typically 0.38 mm or 0.76 mm.
- the intermediate layers can preferably be thermoplastic and, after lamination, can bond the first pane, the second pane and any further intermediate layers to one another. So-called acoustic-damping intermediate layers, which preferably consist of three layers of PVB, are particularly advantageous, with the middle layer being softer than the two outer layers.
- the intermediate layer can also have a functional layer, in particular a layer that reflects infrared radiation, a layer that absorbs infrared radiation, a layer that absorbs UV radiation, a layer that is colored at least in sections and/or a layer that is tinted at least in sections.
- the thermoplastic intermediate layer can also be a belt filter.
- first pane and second pane are chosen to differentiate between the two panes in a composite pane according to the invention. No statement about the geometric arrangement is connected with the terms. If the composite pane according to the invention is intended, for example, to separate the interior from the external environment in an opening, for example in a vehicle or a building, the first pane can face the interior or the external environment.
- first pane and/or the second pane can have other suitable coatings, for example an anti-reflection coating, an anti-stick coating, an anti-scratch coating, a photocatalytic coating, a sun protection coating and/or low-E coating.
- suitable coatings for example an anti-reflection coating, an anti-stick coating, an anti-scratch coating, a photocatalytic coating, a sun protection coating and/or low-E coating.
- the glazing arrangement can optionally include further functional elements, in particular electronically controllable optical elements, for example PDLC elements, electrochromic elements or the like, which are typically arranged between the first pane and the second pane.
- electronically controllable optical elements for example PDLC elements, electrochromic elements or the like, which are typically arranged between the first pane and the second pane.
- the first pane and the second pane are laminated together via the intermediate layer, for example by autoclave processes, vacuum bag processes, vacuum ring processes, calendering processes, vacuum laminators, or combinations thereof.
- the pane is usually connected under the action of heat, vacuum and/or pressure.
- the present invention comprises a method for producing the glazing arrangement according to the invention, at least comprising:
- the light coupling-out means comprising a coating which is arranged flatly at least in sections on one of the two main surfaces (III, IV).
- the coating can be applied to the first pane by means of screen printing.
- the coating is roughened, i.e. the coating is given a structure.
- the coating is then at least partially removed after it has been applied to one of the two main surfaces. There is no clean removal of the coating, but residues of the coating remain on one of the two main surfaces.
- the at least partial removal of the coating can take place by means of a laser. Due to the laser treatment, the coating has an irregular, rough structure and thus has a light-scattering effect.
- the present invention includes the use of the glazing arrangement according to the invention in means of locomotion for traffic on land, in the air or on water, in particular in motor vehicles, for example as a roof pane.
- FIG. 1 is a schematic cross-sectional view of an embodiment of a glazing arrangement according to the invention with a single pane
- Figure 2 is a schematic cross-sectional view of a further embodiment of a glazing arrangement according to the invention with a single pane
- Figure 3 is a schematic cross-sectional view of a further embodiment of a glazing arrangement according to the invention with a laminated pane
- Figure 4 is a schematic cross-sectional view of a further configuration of a glazing arrangement according to the invention with a laminated pane
- FIG. 5 shows a flow chart of an embodiment of a method according to the invention
- FIG. 6 shows a schematic plan view of a configuration of a structured coating according to the invention as a light extraction means.
- FIG. 1 shows a cross-sectional representation of a glazing arrangement 10 according to the invention.
- the glazing arrangement 10 comprises a first pane 1 as a single pane and a light source 2.
- the single pane can be, for example, automobile glazing, building glazing or components of a piece of furniture or electrical equipment.
- the glazing assembly 10 is a roof panel of a vehicle.
- the glazing arrangement 10 can also be part of insulating glazing and serve, for example, as an outer or inner pane in a window of a building.
- the glazing arrangement 10 can be installed in an interior space and can be used, for example, as glazing for a conference room.
- the first pane 1 has a first main surface IV and another second main surface III opposite the first main surface IV.
- the first pane 1 is bounded by four circumferential end faces 3, also known as side faces. The end faces are arranged orthogonally to the main faces III, IV.
- the first disk 1 consists, for example made of soda-lime glass and its dimensions are 1.4 mx 1.5 m.
- the first pane 1 has a thickness of 3 mm. The thickness of the first disk can be adapted to the respective use.
- the first pane 1 can comprise toughened, partially toughened or non-toughened glass. Alternatively, the first pane 1 can be made of a plastic, for example made of polycarbonate.
- the light source 2 is arranged in the glazing arrangement 10 in such a way that light is coupled into the pane 1 at one of the four end faces 3 of the pane 1 .
- the light source 2 is intended to emit light in the visible range. Alternatively, it can emit infrared or ultraviolet light.
- the light emitted by the light source 2 is directed in the direction of the pane 1 and strikes, for example, a first end face 3 of the first pane 1.
- the pane 1 is intended to forward the light coupled in at the first end face 3 through the pane 1 in the longitudinal direction.
- a light beam L1 propagates through pane 1. Due to the principle of total reflection, the light coupled into first pane 1 at an angle Q > 0 to tai propagates through first pane 1.
- the light source 2 of the glazing assembly 10 may include one or more light emitting diodes (LED).
- the light source can also include an organic light emitting diode (OLED).
- a light decoupling means 4 is arranged on the first main surface IV of the first pane 1 .
- the total reflection of the light beam L1 is prevented at the point at which the light coupling-out means 4 is arranged, and the light can emerge from the first pane 1 via the main surface IV. Without the light coupling-out means 4, the coupled-in light strikes the surface of the pane 1 at an angle such that the light beam is totally reflected.
- the light coupling-out means 4 can be arranged at any point on the main surface IV or the main surface III.
- the light extraction means 4 includes a transparent coating 4.1.
- the coating 4.1 has, for example, titanium oxide (Ti0x/Ti02).
- the coating 4.1 is transparent.
- the layer thickness is 10 ⁇ m.
- the coating 4.1 has a different, in particular higher, refractive index than the air and the first pane.
- the total reflection of the light at the interface between the first pane 1 and the surrounding air is interrupted by the coating 4.1 and the light is coupled out of the first pane 1 by scattering.
- the coating 4.1 can be roughened by structuring, as shown in FIG.
- FIG 2 shows a development according to the invention of the glazing arrangement 10 from Figure 1.
- the glazing arrangement 10 from Figure 2 has a similar structure to the glazing arrangement 10 from Figure 1.
- the light source 2 in Figure 2 is on the main surface IV and not on the end face 3 arranged.
- the glazing arrangement 10 has a light coupling means 8 which is arranged opposite the light source 2 with respect to the first pane 1 .
- the light coupling means 8 has the task of directing a large part of the light, which penetrates the first pane 1 at an angle Q ⁇ 0 to tai and immediately exits again due to a lack of total reflection at the boundary surface opposite the entry surface (here main surface III), into the first pane 1 to steer back, preferably at an angle Q > 0 to tai.
- the light coupling means 8 preferably uses mechanisms of reflection, light refraction, diffraction and/or scattering.
- the light coupling means 8 comprises, for example, a microprism film, a structured plastic film, or a plastic plate with a planar arrangement of microprisms.
- a light beam L2 propagates through the pane 1.
- the glazing arrangement 10 comprises a first light extraction means 4 on the second main surface III and a second light extraction means 4 on the first main surface IV.
- the glazing arrangement 10 can only include one of the light extraction means 4.
- the coating 4.1 can have several body elements 4.2.
- the body elements 4.2 can be spherical.
- the shape of the body elements 4.2 can be elliptical, cylindrical or in the form of spheres.
- Body elements 4.2 in the form of spheres, for example, allow the light to be extracted particularly effectively from the first pane using refraction, reflection and scattering.
- the body elements 4.2 can be partially filled or hollow.
- the body elements 4.2 can have a coating of titanium oxide or a fluorescent substance be coated so that the scattering of the light is further enhanced.
- the body elements 4.2 are advantageously transparent and thus almost invisible to the human eye even when the light source 2 is switched off.
- the body elements 4.2 as spheres can have a diameter of 1 ⁇ m to 200 ⁇ m, preferably 5 ⁇ m to 100 ⁇ m, particularly preferably 50 ⁇ m to 80 ⁇ m.
- the cylindrical body would have a length of 1 ⁇ m to 200 ⁇ m, preferably 5 ⁇ m to 100 ⁇ m, particularly preferably 50 ⁇ m to 80 ⁇ m.
- the body elements can have different sizes.
- the body elements 4.2 are preferably made of glass and/or polymer material. The glass and/or the polymer material are preferably transparent.
- the body elements 4.2 can be arranged in a single layer of the coating.
- FIG. 3 shows a cross-sectional illustration of a further embodiment of a glazing arrangement 10 according to the invention with a laminated pane 101.
- the laminated pane 101 comprises the first pane 1, which is connected to a second pane 6 via an intermediate layer 5.
- the first pane 1, the intermediate layer 5 and the second pane 6 were connected to one another by lamination, in particular in an autoclave.
- the second pane 6 has a first main surface II and another second main surface I opposite the first main surface II.
- the first pane 1 from FIG. 3 has a structure similar to the first pane 1 from FIG. 2. In contrast to FIG. 1, the first pane 1 has only one light coupling-out means 4 on the first main surface IV.
- the thickness of the first pane 1 is 1.6 mm, for example, and the thickness of the second pane 6 can be 2.1 mm.
- the first pane 1 and the second pane 6 can have any thickness, for example the same thickness.
- the intermediate layer 5 is a thermoplastic intermediate layer. It contains at least one thermoplastic film and, in an advantageous embodiment, is formed by a single thermoplastic film. This is advantageous in terms of a simple structure and a small overall thickness of the laminated glass.
- the thermoplastic intermediate layer or the thermoplastic film preferably contains at least polyvinyl butyral (PVB), ethylene vinyl acetate (EVA), polyurethane (PU) or mixtures or copolymers or derivatives thereof, which have proven useful for laminated glasses.
- PVB polyvinyl butyral
- EVA ethylene vinyl acetate
- PU polyurethane
- the thickness of the thermoplastic intermediate layer 5 is preferably from 0.2 mm to 1.00 mm.
- thermoplastic films with a standard thickness of 0.76 mm be used.
- the intermediate layer 5 can also be designed as an acoustically damping 3-layer PVB film.
- the first pane 1, the second pane 6 and the intermediate layer 5 are clear (neither tinted nor colored).
- the intermediate layer 5 can have a tinted or colored PVB film.
- the second pane 6 can be tinted dark.
- the light extraction means 4 in FIG. 3 is in the form of the roughened coating 4.1.
- the coating 4.1 has titanium oxide.
- the coating 4.1 can additionally contain spherical body elements 4.2 in the form of spheres, in particular glass spheres.
- a light beam L3 propagates through pane 1 as an example.
- the first pane 1 is provided, for example, to face an interior of a vehicle in the installed position.
- the first main surface IV of the first pane 1 is accessible from the interior, whereas the second main surface I of the second pane 6 faces outwards with respect to the vehicle interior.
- the glazing arrangement 10 shown in FIG. 3 is particularly suitable as a roof pane of a motor vehicle.
- FIG. 4 shows a cross-sectional representation of a further embodiment of a glazing arrangement 10 according to the invention with the composite pane 101.
- the glazing arrangement 10 from Figure 4 has a similar structure to the glazing arrangement 10 from Figure 3.
- the first pane 1 from Figure 4 has the light extraction means 4 on the second main surface III of the first pane 1.
- the light extraction means 4 in FIG. 4 is designed in the form of the roughened coating 4.1.
- the coating 4.1 has titanium oxide.
- the coating 4.1 also has spherical body elements 4.2 in the form of spheres, in particular glass spheres.
- a light beam L4 propagates through pane 1 as an example.
- the glazing arrangement 10 has the light coupling means 8 which is arranged opposite the light source 2 with respect to the first pane 1 .
- the light coupling means 8 is a microprism film, a structured plastic film or plastic plate with a planar arrangement of microprisms.
- the light coupling means 8 preferably uses mechanisms of reflection, light refraction, diffraction and/or scattering.
- FIG. 5 shows a flow chart of an exemplary embodiment of the method according to the invention for producing the glazing arrangement 10. The method comprises the following steps:
- the light extraction means 4 comprising a coating 4.1 which is arranged flatly at least in sections on one of the two main surfaces (III, IV).
- the coating can be applied to the first pane by means of screen printing.
- the step of arranging the light extraction means 4 can include a deposition of the coating 4.1 on the first pane and additionally a step 103 of partial decoating of the coating 4.1, so that the coating 4.1 is roughened.
- the coating 4.1 can be roughened using a laser.
- the coating 4.1 is structured.
- the structuring of the coating can include several circular areas of the coating 4.1.
- the circular areas can have a diameter of 10 ⁇ m to 200 ⁇ m, for example 56 ⁇ m, 63 ⁇ m, 98 ⁇ m or 112 ⁇ m. This achieves improved transparency when switched off without affecting the luminosity when switched on.
- the coating 4.1 can have several body elements 4.2 in the form of spheres. However, the shape of the body elements 4.2 can also be elliptical or cylindrical.
- the body elements 4.2 can be partially filled or hollow and filled with air. Alternatively or additionally, the body elements 4.2 can be coated with a coating of titanium oxide or a fluorescent substance, so that the scattering of the light is further intensified.
- the body elements 4.2 are preferably made of glass and/or polymer material. The glass and/or the polymer material are preferably transparent. For example, the body elements 4.2 can be arranged in a single layer of the coating.
- FIG. 6 shows a schematic plan view of an embodiment of the roughened, structured coating 4.1 as light extraction means 4.
- the structure of the coating 4.1 has a number of circular areas.
- the circular areas of the coating 4.1 have a diameter of, for example, 56 ⁇ m, 63 ⁇ m, 98 ⁇ m, 112 ⁇ m or 1 mm.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Surface Treatment Of Glass (AREA)
- Joining Of Glass To Other Materials (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP21168569 | 2021-04-15 | ||
| PCT/EP2022/058894 WO2022218741A1 (de) | 2021-04-15 | 2022-04-04 | Beleuchtbare verglasung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4323692A1 true EP4323692A1 (de) | 2024-02-21 |
Family
ID=75539166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22720956.6A Pending EP4323692A1 (de) | 2021-04-15 | 2022-04-04 | Beleuchtbare verglasung |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20240151892A1 (de) |
| EP (1) | EP4323692A1 (de) |
| CN (1) | CN117083485A (de) |
| WO (1) | WO2022218741A1 (de) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102022001884B4 (de) | 2022-05-30 | 2024-05-08 | Mercedes-Benz Group AG | Scheibenbaugruppe für ein Kraftfahrzeug |
| DE102022128005A1 (de) * | 2022-10-24 | 2024-04-25 | Webasto SE | Fahrzeugscheibe mit Lichtquelle und Lichtleiterschicht |
| CN120379835A (zh) | 2022-12-12 | 2025-07-25 | 法国圣戈班安全玻璃公司 | 可照明装配玻璃 |
| JP2025537457A (ja) * | 2022-12-12 | 2025-11-18 | サン-ゴバン セキュリット フランス | 光結合のためのコーティングされた反射構造体を備えた照明グレージングエレメント |
| WO2024132610A1 (de) * | 2022-12-19 | 2024-06-27 | Saint-Gobain Glass France | Verbundscheibe mit lichtinformationsanzeigesystem |
| CN120897845A (zh) * | 2023-03-27 | 2025-11-04 | 法国圣戈班安全玻璃公司 | 具有用于耦合入光的衍射全息元件的照明窗玻璃元件 |
| WO2024231137A1 (de) | 2023-05-08 | 2024-11-14 | Saint-Gobain Glass France | Verfahren zur herstellung einer beleuchteten verbundscheibe mit einer reflektierenden struktur zur lichteinkopplung |
| WO2025026800A1 (de) | 2023-08-03 | 2025-02-06 | Saint-Gobain Glass France | Monolithische fahrzeugscheibe |
| NL2035886B1 (en) * | 2023-09-26 | 2025-04-01 | Autoglas D & K B V | Automotive window laminate and method for producing the same |
| WO2025093387A1 (de) * | 2023-10-30 | 2025-05-08 | Saint-Gobain Glass France | Beheizbare kühlgerätverglasung |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2937710B1 (fr) | 2008-10-27 | 2013-05-17 | Saint Gobain | Module a diodes electroluminescentes pour vehicule, support a diodes, fabrications |
| CN102272516A (zh) * | 2009-01-13 | 2011-12-07 | 高通Mems科技公司 | 大面积光面板及屏幕 |
| CN204244214U (zh) | 2011-10-10 | 2015-04-01 | 法国圣戈班玻璃厂 | 带有照亮的开关面的片 |
| FR2986186B1 (fr) | 2012-01-26 | 2014-09-05 | Saint Gobain | Vitrage eclairant pour vehicule |
| DE102012109900B4 (de) | 2012-10-17 | 2015-10-15 | Bayerische Motoren Werke Aktiengesellschaft | Fahrzeugverglasung |
| KR102396551B1 (ko) | 2013-12-19 | 2022-05-12 | 코닝 인코포레이티드 | 디스플레이 응용을 위한 텍스쳐링된 표면 |
| FR3034501A1 (fr) | 2015-04-03 | 2016-10-07 | Saint Gobain | Vitrage lumineux pour batiment, mobilier, vehicule de transport en commun |
| FR3064531B1 (fr) | 2017-03-31 | 2019-04-05 | Saint-Gobain Glass France | Vitrage eclairant. |
| BR112020006289A2 (pt) | 2017-11-30 | 2020-10-06 | Saint-Gobain Glass France | painel laminado com parte de anexação elétrica integrada |
| CN113613888A (zh) | 2019-03-21 | 2021-11-05 | 中央硝子株式会社 | 具有照明能力的玻璃 |
-
2022
- 2022-04-04 CN CN202280002128.4A patent/CN117083485A/zh active Pending
- 2022-04-04 EP EP22720956.6A patent/EP4323692A1/de active Pending
- 2022-04-04 US US18/550,056 patent/US20240151892A1/en active Pending
- 2022-04-04 WO PCT/EP2022/058894 patent/WO2022218741A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022218741A1 (de) | 2022-10-20 |
| CN117083485A (zh) | 2023-11-17 |
| US20240151892A1 (en) | 2024-05-09 |
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