[go: up one dir, main page]

WO2024165247A1 - Vitrage pouvant être éclairé doté d'un accouplement de lumière amélioré - Google Patents

Vitrage pouvant être éclairé doté d'un accouplement de lumière amélioré Download PDF

Info

Publication number
WO2024165247A1
WO2024165247A1 PCT/EP2024/050260 EP2024050260W WO2024165247A1 WO 2024165247 A1 WO2024165247 A1 WO 2024165247A1 EP 2024050260 W EP2024050260 W EP 2024050260W WO 2024165247 A1 WO2024165247 A1 WO 2024165247A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
pane
glazing arrangement
glazing
guiding element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2024/050260
Other languages
German (de)
English (en)
Inventor
Siyamak MEMAR JAVID
Sebastian ARENDT
Semjon MOORAJ
Julian GREVERATH
Klaus Fischer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saint Gobain Glass France SAS
Compagnie de Saint Gobain SA
Original Assignee
Saint Gobain Glass France SAS
Compagnie de Saint Gobain SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Saint Gobain Glass France SAS, Compagnie de Saint Gobain SA filed Critical Saint Gobain Glass France SAS
Publication of WO2024165247A1 publication Critical patent/WO2024165247A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0018—Redirecting means 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
    • G02B6/0013—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
    • G02B6/0028—Light guide, e.g. taper
    • 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
    • G02B6/0066—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 characterised by the light source being coupled to the light guide
    • G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources

Definitions

  • the invention relates to a glazing arrangement with a light module, as well as a vehicle with such a glazing arrangement and a method for producing such a glazing arrangement.
  • State-of-the-art vehicles are known that have a light distribution system in the interior that provides subtle or striking illumination of the interior as required. The lighting not only provides orientation in the vehicle, but also creates a pleasant atmosphere for passengers.
  • Composite panes as glazing made of two or more glass or polymer panes are used in vehicles as windshields, rear windows, side windows and roof windows. In the case of illuminable or illuminated glazing, light from a light source is coupled into a flat light guide in the form of a pane of glazing using total reflection.
  • WO 2010/049638 A1 discloses the coupling of light into a glass pane via a side surface.
  • the point-based coupling of light makes it difficult to achieve homogeneous illumination of the entire pane.
  • US2017/045666 A1 discloses an illumination system that uses a waveguiding substrate and one or more elongated light coupling elements, each with a light-emitting diode (LED) as a light source.
  • the light coupling elements are attached to a large surface of the substrate with optical contact.
  • the object of the present invention is to provide an improved glazing arrangement with a light module, which has an improved light coupling into a pane.
  • the glazing arrangement according to the invention comprises at least a first pane and a light module.
  • the first pane has a first main surface and a second main surface.
  • the first pane is intended to at least partially transmit coupled light.
  • the light module comprises two or more light sources for generating light that can be coupled into the first pane, the light sources being arranged on or in a light-guiding element.
  • the light-guiding element has a light output surface facing the first pane and is arranged on the first pane.
  • the light-guiding element also comprises a body made of an optically transparent, cured adhesive. The light generated by the light sources is intended to be coupled into the first pane via the light output surface.
  • the refractive index nK of the optically transparent, cured adhesive is equal to a refractive index ni of the first pane, the light can be coupled into the pane with little or no loss of light intensity. The light is almost completely transmitted at the transition from the light-guiding element to the first pane and is not refracted or reflected.
  • the glazing arrangement according to the invention surprisingly has an improved coupling of light from the light sources to the first pane without negatively affecting other optical properties of the first pane. Furthermore, the glazing arrangement enables modular application, in particular the light module can be combined with existing panes or composite panes without significant structural changes being necessary.
  • a light source has a light emission surface that can be arranged at an angle to the first main surface of the first pane.
  • the light output surface can be arranged on the first main surface and/or the second main surface of the first pane.
  • the arrangement of the light sources outside the pane prevents complex drilling into the pane or lamination of the light sources in a laminated glass pane.
  • electrical conductors for contacting the light sources in the pane can be dispensed with.
  • the light module in particular the light-guiding element on an outer surface, has a light-reflecting coating that is suitable for reflecting the light emitted by the light sources in the direction of the light output surface. This prevents the light from escaping from the light-guiding element and increases the transmission of the light.
  • the light module preferably comprises a housing which has an opening on the light output surface.
  • the housing can be a hollow body filled with the optically transparent, cured adhesive, wherein the hollow body is made of a thermally dimensionally stable material, in particular plastic, metal or aluminum.
  • the housing can have two sides which are arranged opposite the light output surface, wherein the two sides define the hollow body with the opening.
  • the light-guiding element can be designed as a collimator, the side surfaces of which are intended to reflect the light emitted by the light sources in the direction of the light output surface.
  • a refractive index of the optically transparent, cured adhesive and a refractive index of the first pane are the same.
  • Refractive indices are generally given in relation to a wavelength of 550 nm within the scope of the present invention.
  • the refractive index is generally independent of the measurement method; it can be determined using ellipsometry, for example. Ellipsometers are commercially available. When determining the refractive index of a filling material of the hollow body, the same measurement method is used as when determining the refractive index of the first pane.
  • An optically transparent adhesive is curable, i.e. it can be irreversibly cured. It is typically a plastic that is cured into a polymer-crosslinked state. This is a key difference between a curable adhesive and a thermoplastic, which is also optically transparent but can be reversibly softened by applying heat. In contrast, a curable adhesive can no longer be made flowable once it has cured. The optically transparent, curable adhesive is therefore not a non-curable thermoplastic.
  • the curable, optically transparent adhesive can be cured by heat, exposure to electromagnetic radiation, preferably UV radiation, and/or chemically. Curing is preferably carried out by applying heat or increasing the temperature and/or UV radiation.
  • the transparent adhesive is based on silicone, for example.
  • Optically transparent adhesives are known in particular under the acronym LOCA (liquid optically clear adhesive). These are often used in touch-sensitive displays, for example to firmly connect them to an LCD display or to firmly connect plastic covers to the touch-sensitive displays. After application, the LOCA is often hardened using UV radiation.
  • the curable, optically transparent adhesive can contain or consist of, for example, polyurethane (PU), polyacrylate, polyacetate resin, casting resin, epoxy resin, acrylic or a copolymer or mixture thereof.
  • the optically transparent adhesive advantageously consists of a casting resin, in particular based on polyurethane or silicone.
  • the housing of the light module can serve as a mold for the curable, optically transparent adhesive.
  • the light module is firmly bonded to the first pane by means of the optically transparent, hardened adhesive.
  • the light module is glued to the first pane.
  • the light module can be firmly bonded to the first pane by means of an adhesive tape.
  • the adhesive tape has the optically transparent adhesive on two sides.
  • the light module has two or more light sources.
  • the multiple light sources allow the illuminated pane to be illuminated more effectively across the entire surface.
  • the glazing arrangement comprises two or more light modules, each of which is attached to the first main surface of the first pane with an associated light-guiding element.
  • the light modules can be attached in a row-like arrangement to the first main surface of the first pane. This makes the light module scalable.
  • the light-guiding element can have any geometric cross-sectional shape, such as the shape of a circle, quadrilateral, triangle, square, rectangle, pentagon or that of another regular or irregular polygon.
  • a light source contains at least one light emitting diode (LED), preferably at least one organic light emitting diode (OLED), and/or at least one laser diode. This type of light source is particularly bright and efficient.
  • the light module has a cooling device for cooling at least one light source.
  • High-performance LEDs can be used as a light source, as they require cooling during operation.
  • Transparent in the sense of the invention is understood to mean an object, in particular an optically transparent adhesive, a light coupling means and/or a transparent body (for example a pane), which has a transmission in the visible spectral range of greater than 20%, preferably greater than 50%, particularly preferably greater than 70%, in particular greater than 85%.
  • the first pane is connected to a second pane via an intermediate layer to form a composite pane.
  • the first pane and/or, if present, the second pane preferably contain glass, particularly preferably flat glass, very particularly preferably float glass, such as soda-lime glass, borosilicate glass or quartz glass, or clear plastics, preferably rigid clear plastics, in particular polyethylene, polypropylene, polycarbonate, polymethyl methacrylate, polystyrene, polyamide, polyester, polyvinyl chloride and/or mixtures thereof, or consist of these.
  • the first pane and/or second pane are preferably transparent, in particular for use of the panes as a front pane (also referred to as a windshield) or rear pane of a vehicle or other uses where high light transmission is desired.
  • a pane is then understood to be transparent in the sense of the invention if it has a transmission in the visible spectral range of greater than 70%.
  • at least the first pane and preferably also the second pane are made of clear glass.
  • the transmission can be much lower, for example greater than 5%.
  • the second pane and/or the intermediate layer can be tinted or colored.
  • the thickness of the first pane and/or the second pane can vary widely and can thus be perfectly adapted to the requirements of the individual case. Standard thicknesses of 1.0 mm to 25 mm are preferred, preferably 1.4 mm to 2.5 mm for vehicle glass. and preferably from 4 mm to 25 mm for furniture, equipment and buildings.
  • the size of the panes can vary widely and depends on the size of the use according to the invention.
  • the first pane and second pane have areas of 200 cm 2 to 20 m 2 , which are common in vehicle construction and architecture, for example.
  • the panes are preferably planar or slightly or strongly curved in one or more directions of the room.
  • the first pane and the second pane are connected to one another by at least one intermediate layer.
  • the intermediate layer is preferably transparent or tinted or colored.
  • the intermediate layer preferably contains at least one plastic, preferably polyvinyl butyral (PVB), ethylene vinyl acetate (EVA) and/or polyethylene terephthalate (PET), or consists thereof.
  • the intermediate layer can also contain, for example, polyurethane (PU), polypropylene (PP), polyacrylate, polyethylene (PE), polycarbonate (PC), polymethyl methacrylate, polyvinyl chloride, polyacetate resin, casting resins, acrylates, fluorinated ethylene propylene, polyvinyl fluoride and/or ethylene tetrafluoroethylene, or copolymers or mixtures thereof.
  • the intermediate layer can be formed by one or more films arranged one above the other, the thickness of a film preferably being from 0.025 mm to 1 mm, typically 0.38 mm or 0.76 mm.
  • the intermediate layers can preferably be thermoplastic and, after lamination, bond the first pane, the second pane and any other intermediate layers together. Particularly advantageous are so-called acoustically dampening intermediate layers, which preferably consist of three layers of PVB, with the middle layer being softer than the two outer layers.
  • the intermediate layer can also be a functional intermediate layer, in particular an intermediate layer that reflects infrared radiation, an intermediate layer that absorbs infrared radiation, an intermediate layer that absorbs UV radiation, an intermediate layer that is colored at least in sections and/or an intermediate layer that is tinted at least in sections.
  • the thermoplastic intermediate layer can also be a band filter film.
  • the first pane can face the interior or the external environment.
  • the first pane and/or, if present, the second pane may have other suitable layers known per se, for example anti-reflective coatings, non-stick coatings, anti-scratch coatings, photocatalytic coatings or sun protection coatings or low-E coatings.
  • the first pane is provided with a low-E coating on its first main surface.
  • Low-E coatings are emissivity-reducing coatings and reflect IR radiation, in particular the thermal radiation, which emanates from a heated pane of glass. The penetration of thermal radiation into the vehicle interior is reduced, which also results in less heating of the interior. In winter, when outside temperatures are low, the radiation of heat from the interior to the outside environment is prevented.
  • Transparent emissivity-reducing coatings can, for example, contain reflective layers based on indium tin oxide (ITO) or other transparent conductive oxides (TCO), as known from WO2013/131667A1, for example.
  • the low-E coating preferably does not contain any silver layers and can thus be arranged on the first main surface of the first disc without causing problems with corrosion.
  • the glazing arrangement can comprise further functional elements, in particular electronically controllable optical elements, for example PDLC elements, electrochromic elements or the like, which are typically arranged between the first pane and the second pane.
  • electronically controllable optical elements for example PDLC elements, electrochromic elements or the like, which are typically arranged between the first pane and the second pane.
  • the glazing arrangement can additionally comprise at least one light extraction means for coupling light out of the first pane via at least one of the main surfaces.
  • the light coupled into the first pane is then coupled out of the first pane via the light extraction means and thus causes the first pane to light up there.
  • the light extraction means is suitable for coupling out a portion of the light guided in the first pane, preferably by scattering, reflection, refraction or diffraction, on at least one of the main surfaces of the first pane.
  • the light extraction means is advantageously arranged or introduced into the first main surface and/or into the second main surface and/or within the first pane.
  • the light extraction means is preferably introduced into the first main surface and/or into the second main surface by laser structuring, mechanical structuring such as sandblasting and/or by etching.
  • the light coupling means can be materially connected to the first main surface and/or to the second main surface of the first pane, preferably by printing or gluing on a color, a paste or particles, particularly preferably light-scattering, light-refracting or light-reflecting particles.
  • the composite pane is a roof pane or front pane (windshield) of a motor vehicle and the first pane is the inner pane and the second pane is the outer pane.
  • the glazing arrangement is used in a particularly suitable location.
  • a further aspect of the invention comprises a system with a glazing arrangement according to the invention with a light control.
  • the light control comprises a voltage source and a control unit which are connected to two or more light sources.
  • the light control controls the light source(s).
  • a further aspect of the invention comprises a vehicle, in particular a passenger car, with a glazing arrangement according to the invention.
  • a further aspect of the invention comprises a method for producing a glazing arrangement according to the invention, at least comprising: a) producing a housing by means of injection molding or 3D printing, b) arranging two or more light sources in or on the housing, c) filling the housing with an optically transparent, curable adhesive to produce a light-guiding element, so that a prefabricated light module is created, d) providing the first pane, e) arranging the prefabricated light module on the first pane, wherein curing of the optically transparent, curable adhesive takes place after step c) or after step e).
  • the curable, optically transparent adhesive can be cured by heat, exposure to electromagnetic radiation, preferably UV radiation, and/or chemically. Curing is preferably carried out by supplying heat or increasing the temperature and/or UV radiation.
  • a light-reflecting coating is applied to the housing, in particular to the inner surfaces of the housing.
  • the reflective coating can have been applied to an adhesive tape beforehand and then the adhesive tape with the reflective coating is arranged on the housing.
  • step e) the light module is firmly bonded to the first pane by means of a thin layer of the optically transparent, curable adhesive.
  • the first pane and a second pane are connected to one another by at least one intermediate layer to form a composite pane.
  • the first pane and the second pane are laminated to one another via the intermediate layer, for example by autoclave processes, vacuum bag processes, vacuum ring processes, calender processes, vacuum laminators or combinations thereof.
  • the panes are usually connected under the influence of heat, vacuum and/or pressure.
  • thermoplastic intermediate layer is preferably provided as a film.
  • the process according to the invention avoids the use of additional components in the pane, in particular in a composite pane, and problems with the occurrence of local defects in the composite pane are minimized (e.g. formation of air bubbles in the composite pane). This is a great advantage of the present invention.
  • Figure 1 is a schematic cross-sectional view of a first embodiment of a glazing arrangement according to the invention
  • Figure 2 is a schematic cross-sectional view of a second embodiment of the glazing arrangement according to the invention.
  • Figure 3 is a schematic cross-sectional view of a third embodiment of the glazing arrangement according to the invention.
  • Figure 4 is a schematic cross-sectional view of a fourth embodiment of the glazing arrangement according to the invention.
  • Figure 5 is a schematic cross-sectional view of a fifth embodiment of the glazing arrangement according to the invention.
  • Figure 6 is a schematic cross-sectional view of a sixth embodiment of the glazing arrangement according to the invention.
  • Figure 7 shows an embodiment of the glazing arrangement according to the invention with a cooling device
  • Figure 8 shows an embodiment of the glazing arrangement according to the invention with two light sources
  • FIG. 9 shows an embodiment of the glazing arrangement according to the invention with several light modules
  • Figure 10 is a perspective view of an embodiment of the glazing arrangement comprising a composite pane
  • Figure 11 is a flow chart of an embodiment of the method according to the invention.
  • FIG. 1 shows a schematic cross-sectional view of a first embodiment of a glazing arrangement 10 according to the invention using the example of a single pane.
  • the single pane can be, for example, automotive glazing (e.g. windscreen or roof pane), building glazing or a component of a piece of furniture.
  • the glazing arrangement can also be part of an insulating glazing and serve, for example, as an outer or inner pane in a window of a building.
  • the glazing arrangement 10 can be installed in an interior and can serve, for example, as glazing in a conference room.
  • the glazing arrangement 10 comprises a first pane 1 with a first main surface IV and a second main surface III and a light module 5.
  • the first pane 1 is further delimited by four circumferential side surfaces 4 which are arranged orthogonal to the main surfaces III, IV.
  • the first pane 1 is intended to at least partially transmit coupled light 3.
  • the dimensions of the first pane 1 can be, for example, 1.4 m x 1.5 m.
  • the first pane 1 consists, for example, of soda-lime glass.
  • the thickness of the first pane 1 is, for example, 3 mm, 2.1 mm or 1.6 mm. It is understood that the thickness of the first pane 1 can be adapted to the respective use.
  • the first pane 1 can, for example, contain tempered, partially tempered or non-tempered glass. Alternatively, the first pane 1 can consist of a plastic, for example polycarbonate.
  • the light module 5 comprises at least one light source 5.1 for generating light 3 that can be coupled into the first pane 1, wherein the light source 5.1 is arranged in a light-guiding element 5.3.
  • the light-guiding element 5.3 has a light output surface 5.5 facing the first pane 1.
  • the light module 5 is arranged on the first pane 1.
  • the at least one light source 5.1 is located completely within the light-guiding element 5.3.
  • the light-guiding element 5.3 comprises a body made of an optically transparent, cured adhesive.
  • the light module 5 further comprises a housing 9, which has an opening on the light output surface 5.5.
  • the housing 9 is designed as a hollow body, wherein the hollow body is made of a thermally dimensionally stable material, in particular plastic, metal or aluminum. Furthermore, the housing 9 has outer sides facing the external environment, which the light exit surface 5.5 are arranged opposite each other, whereby the outer sides define the hollow body with the opening.
  • a curable, optically transparent adhesive is cured by heat, exposure to electromagnetic radiation, preferably UV radiation, and/or chemically. Curing is preferably carried out by supplying heat or increasing the temperature and/or UV radiation.
  • the curable, optically transparent adhesive can contain or consist of, for example, polyurethane (PU), polyacrylate, polyacetate resin, casting resin, epoxy resin, acrylic or a copolymer or mixture thereof.
  • the optically transparent adhesive advantageously consists of a casting resin, in particular based on polyurethane or silicone.
  • a refractive index of the light-guiding element 5.3 is the same or almost the same as the refractive index of the first pane 1.
  • the light module 5 is firmly connected to the first pane 1 by means of the optically transparent, hardened adhesive.
  • the light module 5 can be firmly connected to the first pane 1 by means of an adhesive tape.
  • the adhesive tape has the optically transparent adhesive on two sides.
  • the light source 5.1 is located completely within the light-guiding element 5.3.
  • the light source 5.1 is preferably an LED.
  • the light source 5.1 can comprise one or more light-emitting diodes (LED, LED light).
  • a light source 5.1 can also comprise an organic light-emitting diode (OLED) or a high-performance LED.
  • the light beam of the light source 5.1 is directed in the direction of the first main surface IV of the first pane 1.
  • the first pane 1 can further comprise light extraction means.
  • a light extraction means extracts light from the first pane 1 (or a composite pane 101 as shown in Figure 7).
  • the light extraction means can be arranged on the first main surface IV of the first pane 1. At the location where a light extraction means is arranged, the light can exit the first pane 1 via the main surface IV.
  • the light extraction means can be arranged at any point on the first main surface IV.
  • the light extraction means can comprise structures on the main surface IV, at which the total reflection within the first pane 1 is prevented and light exits the first pane 1 via the main surface IV.
  • the light extraction means can be an imprint on the first main surface IV or can be incorporated into the pane 1. light-scattering, light-refracting, light-diffracting or light-reflecting particles or cavities.
  • FIG 2 shows a second embodiment of the glazing arrangement 10 according to the invention.
  • the glazing arrangement 10 of Figure 2 has a similar structure to the glazing arrangement 10 from Figure 1, so that only the differences will be discussed below and otherwise reference is made to the description of Figure 1.
  • the light module 5 is not only attached to the main surface IV of the first pane 1, but also to an edge of the pane 1, so that the light output surface 5.5 of the light module 5 also rests on the side surface 4 of the first pane 1.
  • Figure 3 shows a third embodiment of the glazing arrangement 10 according to the invention, in which the light module 5 is arranged on the side surface 4 of the first pane 1. Otherwise, the glazing arrangement 10 of Figure 3 has a similar structure to the glazing 10 from Figure 1. In contrast to the glazing arrangement 10 from Figure 1, in Figure 3 the light output surface 5.5 of the light module 5 is arranged completely on the side surface 4 of the first pane 1. The light 3 emitted by the light source 5.1 enters the first pane 1 via the side surface 4.
  • Figure 4 shows a fourth embodiment of the glazing arrangement 10 according to the invention, which differs from Figure 1 in the arrangement of the at least one light source 5.1.
  • the light source 5.1 is not arranged within the light guide element 5.3, but is attached to the light guide element 5.3.
  • the at least one light source 5.1 is partially embedded in the light-guiding element 5.3.
  • the light source 5.1 is completely embedded in the light-guiding element 5.3.
  • the housing 9 is then preferably provided as a hollow body made of aluminum, which surrounds the light-guiding element 5.3. With powerful LEDs as the light source 5.1, the hollow body made of aluminum acts as a cooling device.
  • FIG 7 shows an embodiment of the glazing arrangement 10 according to the invention with a cooling device 11.
  • the cooling device 11 serves to cool the light source 5.1, in particular when the light source 5.1 has high-performance LEDs.
  • the cooling device can comprise a copper layer, an aluminum layer or a plastic layer which is applied to the back a circuit board equipped with the light source 5.1.
  • the plastic layer can contain a plastic element with improved heat transport properties.
  • the first pane 1 is connected to a second pane 2 via an intermediate layer 3 to form a composite pane 101.
  • the first pane 1, the intermediate layer 15 and the second pane 2 were connected to one another by lamination, in particular autoclaves.
  • the first pane 1 has the first main surface IV and the second main surface III opposite the first main surface IV.
  • the second pane 2 has a first main surface I and a second main surface II opposite the first main surface I.
  • the first pane 1 and the second pane 2 consist, for example, of soda-lime glass.
  • the intermediate layer 15 is thermoplastic and is formed, for example, from a 0.76 mm thick PVB film.
  • the thickness of the first pane 1 is, for example, 1.6 mm and the thickness of the second pane 2 is 2.1 mm.
  • the first pane 1 and the second pane 2 can also have any thickness, for example be the same thickness.
  • the composite pane 101 is limited by four circumferential side surfaces.
  • the light module 5 has a light-reflecting coating 7 on its outer surfaces, in particular on the outer surfaces of the light-guiding element 5.3, which is suitable for reflecting the light 3 emitted by the light source 5.1 in the direction of the light output surface 5.5. This prevents the light 3 from escaping from the outer surfaces of the light-guiding element 5.3 and increases the transmission of the light 3.
  • the first pane 1 can comprise tempered, partially tempered or non-tempered glass.
  • the first pane 1 can consist of a plastic, for example polycarbonate.
  • the first pane 1, the second pane 2 and the intermediate layer 15 are, for example, clear (neither tinted nor colored).
  • the intermediate layer 15 can comprise a tinted, in particular a dark tint (gray, brown, blue) or colored PVB film.
  • the second pane 2 can be darkly tinted (gray, brown, blue).
  • the first pane 1 preferably represents an inner pane and the second pane 2 an outer pane.
  • the inner pane faces an interior in the installed position.
  • the outer pane faces the external environment (e.g. a vehicle) in the installed position.
  • This arrangement is particularly advantageous due to the position of the light sources 5.1 in the first pane 1, since the light is coupled out in the direction of a (vehicle) interior. takes place, which leads to a pleasant atmosphere in the interior.
  • the second pane 2 can also be the inner pane and the first pane 1 the outer pane.
  • a low-E coating 13 is arranged on the first pane 1.
  • the low-E coating 13 is applied to the first main surface IV.
  • the low-E coating 13 is an emissivity-reducing coating and reflects IR radiation, in particular thermal radiation. In the area of the light exit surface 5.5, the low-E coating 13 on the first main surface IV is removed.
  • a reflective layer can be arranged between the intermediate layer 15 and the first pane 1 as a light amplification means (not shown here), which is intended to amplify the coupling of light into the first pane 1.
  • the light amplification means would then be arranged opposite the light source 5.1 with respect to the first pane 1.
  • the light amplification means preferably uses mechanisms of reflection, light refraction, diffraction and/or scattering. Such light amplification means are known to the person skilled in the art, for example from WO 2022/096365 A1, so they will not be discussed in more detail here.
  • the light amplification means significantly increases the intensity of the light coupled into the first pane 1 under total reflection and thus also the intensity of the light that can be coupled out.
  • FIG 8 shows an embodiment of the glazing arrangement 10 according to the invention with a light module 5 that has two light sources 5.1.
  • the glazing arrangement 10 of Figure 8 has a similar structure to the glazing arrangement 10 from Figure 1, so that otherwise reference is made to the description of Figures 1 to 7.
  • FIG 9 shows a schematic cross-sectional view of an embodiment of the glazing arrangement 10 according to the invention with several light modules 5.
  • the glazing arrangement 10 of Figure 9 has a similar structure to the glazing arrangement 10 from Figure 1, so that otherwise reference is made to the description of Figures 1 to 8.
  • Figure 10 shows a perspective view of an embodiment of the glazing arrangement 10, which comprises the composite pane 101 with a light module 5.
  • the light module 5 is designed as an optical collimator.
  • the side surfaces of the light module 5 are intended to reflect the light 3 emitted by the light source 5.1 in the direction of the light output surface 5.5.
  • the glazing arrangement 10 of Figure 9 has a similar structure to the glazing arrangement 10 from Figure 1, so that otherwise reference is made to the description of Figures 1 to 8.
  • Figure 11 shows a flow chart of a method according to the invention for producing the glazing arrangement 10 according to the invention.
  • the method comprises at least the following method steps: a) producing a housing 9 by means of injection molding or 3D printing, b) arranging at least one, preferably two or more light sources 5.1 in or on the housing 9, c) filling the housing 9 with an optically transparent, curable adhesive to produce a light-guiding element 5.3, so that a prefabricated light module 5 is created, d) providing the first pane 1, e) arranging the prefabricated light module 5 on the first pane 1, wherein curing of the optically transparent, curable adhesive takes place after step c) or after step e).
  • the glazing arrangement according to the invention with the light module according to the invention has the advantage over glazing according to the prior art that the light intensity within the first pane is increased by using the light-guiding element with a body made of an optically transparent, cured adhesive, since the light from the light sources can penetrate the first pane unhindered.
  • the light module is easily scalable so that another row of light modules can be added to increase the light intensity.
  • the reflective coating on the outer surfaces of the light module acts as a light reflector so that more light is available for coupling into the first pane.
  • the glazing arrangement according to the invention can be produced easily and inexpensively. This was unexpected and surprising for the person skilled in the art. List of reference symbols:

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Laminated Bodies (AREA)

Abstract

La présente invention concerne un ensemble vitrage comprenant au moins : une première vitre (1) dotée d'une première surface principale (IV) et d'une seconde surface principale (III), la première vitre (1) étant conçue pour transmettre au moins partiellement une lumière accouplée (3) ; un module lumineux (5) comprenant au moins deux sources de lumière (5.1) pour générer de la lumière (3) qui peut être accouplée dans la première vitre (1), les sources de lumière (5.1) étant disposées sur ou dans un élément de guidage de lumière (5.3), l'élément de guidage de lumière (5.3) ayant une surface de sortie de lumière (5.5) faisant face à la première vitre (1) et étant disposé sur la première vitre (1), l'élément de guidage de lumière (5.3) ayant un corps constitué d'un adhésif durci optiquement transparent.
PCT/EP2024/050260 2023-02-08 2024-01-08 Vitrage pouvant être éclairé doté d'un accouplement de lumière amélioré Ceased WO2024165247A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP23155486.6 2023-02-08
EP23155486 2023-02-08

Publications (1)

Publication Number Publication Date
WO2024165247A1 true WO2024165247A1 (fr) 2024-08-15

Family

ID=85201965

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2024/050260 Ceased WO2024165247A1 (fr) 2023-02-08 2024-01-08 Vitrage pouvant être éclairé doté d'un accouplement de lumière amélioré

Country Status (1)

Country Link
WO (1) WO2024165247A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025125031A1 (fr) 2023-12-13 2025-06-19 Saint-Gobain Sekurit France Ensemble vitrage à moule lumineux échangeable

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010049638A1 (fr) 2008-10-27 2010-05-06 Saint-Gobain Glass France Module a diodes electroluminescentes pour vehicule, fabrications
WO2013053629A1 (fr) 2011-10-10 2013-04-18 Saint-Gobain Glass France Vitre dotée d'une surface de commande éclairée
WO2013131667A1 (fr) 2012-03-05 2013-09-12 Saint-Gobain Glass France Vitre avec revêtement réfléchissant le rayonnement de chaleur
WO2014060409A1 (fr) 2012-10-17 2014-04-24 Webasto SE Vitrage de véhicule
US20140253831A1 (en) * 2011-09-09 2014-09-11 Flatfrog Laboratories Ab Light coupling structures for optical touch panels
WO2015095288A2 (fr) 2013-12-19 2015-06-25 Corning Incorporated Surfaces texturées pour applications d'affichage
US20170045666A1 (en) 2015-08-14 2017-02-16 Sergiy Vasylyev Face-lit waveguide illumination systems
US20180299098A1 (en) * 2012-02-14 2018-10-18 Sergiy Victorovich Vasylyev Light guide illumination systems with enhanced light coupling
US20210101370A1 (en) * 2017-08-01 2021-04-08 Saint-Gobain Glass France Functional element having electrically controllable optical properties
WO2021198262A1 (fr) * 2020-04-03 2021-10-07 Webasto SE Vitre de véhicule comprenant une source lumineuse et une couche conductrice de lumière
WO2022096365A1 (fr) 2020-11-05 2022-05-12 Saint-Gobain Glass France Vitrage
WO2022136107A1 (fr) * 2020-12-21 2022-06-30 Saint-Gobain Glass France Vitrage pourvu d'une source de lumière

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010049638A1 (fr) 2008-10-27 2010-05-06 Saint-Gobain Glass France Module a diodes electroluminescentes pour vehicule, fabrications
US20140253831A1 (en) * 2011-09-09 2014-09-11 Flatfrog Laboratories Ab Light coupling structures for optical touch panels
WO2013053629A1 (fr) 2011-10-10 2013-04-18 Saint-Gobain Glass France Vitre dotée d'une surface de commande éclairée
US20180299098A1 (en) * 2012-02-14 2018-10-18 Sergiy Victorovich Vasylyev Light guide illumination systems with enhanced light coupling
WO2013131667A1 (fr) 2012-03-05 2013-09-12 Saint-Gobain Glass France Vitre avec revêtement réfléchissant le rayonnement de chaleur
WO2014060409A1 (fr) 2012-10-17 2014-04-24 Webasto SE Vitrage de véhicule
WO2015095288A2 (fr) 2013-12-19 2015-06-25 Corning Incorporated Surfaces texturées pour applications d'affichage
US20170045666A1 (en) 2015-08-14 2017-02-16 Sergiy Vasylyev Face-lit waveguide illumination systems
US20210101370A1 (en) * 2017-08-01 2021-04-08 Saint-Gobain Glass France Functional element having electrically controllable optical properties
WO2021198262A1 (fr) * 2020-04-03 2021-10-07 Webasto SE Vitre de véhicule comprenant une source lumineuse et une couche conductrice de lumière
WO2022096365A1 (fr) 2020-11-05 2022-05-12 Saint-Gobain Glass France Vitrage
WO2022136107A1 (fr) * 2020-12-21 2022-06-30 Saint-Gobain Glass France Vitrage pourvu d'une source de lumière

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025125031A1 (fr) 2023-12-13 2025-06-19 Saint-Gobain Sekurit France Ensemble vitrage à moule lumineux échangeable

Similar Documents

Publication Publication Date Title
WO2022096365A1 (fr) Vitrage
DE102012109900B4 (de) Fahrzeugverglasung
EP4323692A1 (fr) Vitrage pouvant être éclairé
DE202021004291U1 (de) Verglasung mit Lichtquelle
DE202021100843U1 (de) Beleuchtetes Laminat mit hervorragender Ästhetik und Helligkeit
EP3762228B1 (fr) Verre feuilleté pourvu d'un élément fonctionnel et d'éclairage
DE112020001639T5 (de) Beleuchtetes Laminat mit hervorragender Ästhetik und Helligkeit
DE202022100518U1 (de) Verglasung
DE112019004506T5 (de) Glas und laminiertes Glas
DE202023002724U1 (de) Beleuchtete Verbundscheibe mit einer reflektierenden Kantenbeschichtung
WO2024165247A1 (fr) Vitrage pouvant être éclairé doté d'un accouplement de lumière amélioré
DE112021003093T5 (de) Fahrzeugfensterstruktur
WO2024104664A1 (fr) Fenêtre de véhicule comprenant une structure composite
DE202022101100U1 (de) Verglasung zur Signalübertragung
EP4469274B1 (fr) Vitrage pouvant être éclairé
DE102021122494A1 (de) Glasverbund für ein beleuchtetes Fahrzeugdach, Verfahren zur Herstellung eines Glasverbundes und beleuchtetes Fahrzeugdach
EP4469273B1 (fr) Vitrage pouvant être éclairé
DE202024002567U1 (de) Verglasungseinheit mit elektronischer Komponente
WO2025125031A1 (fr) Ensemble vitrage à moule lumineux échangeable
EP4486567A1 (fr) Vitrage pouvant être éclairé
DE202023002747U1 (de) Beleuchtbare Verglasung
DE202024002550U1 (de) Verglasungseinheit mit elektronischer Komponente
WO2025083118A1 (fr) Vitrage pouvant être éclairé
WO2025219042A1 (fr) Agencement de vitre composite ayant une source de lumière et un conduit de lumière
WO2025051592A1 (fr) Unité de vitrage ayant un panneau de vitrage éclairable

Legal Events

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

Ref document number: 24700227

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE