EP4210944A1 - Vitrage feuillete a reflexion lumineuse exterieure diminuee et affichage tete haute de visibilite amelioree - Google Patents
Vitrage feuillete a reflexion lumineuse exterieure diminuee et affichage tete haute de visibilite amelioreeInfo
- Publication number
- EP4210944A1 EP4210944A1 EP21782784.9A EP21782784A EP4210944A1 EP 4210944 A1 EP4210944 A1 EP 4210944A1 EP 21782784 A EP21782784 A EP 21782784A EP 4210944 A1 EP4210944 A1 EP 4210944A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- laminated glazing
- stack
- glazing according
- adhesive layer
- light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
- B32B17/10036—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
- G02B5/3066—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state involving the reflection of light at a particular angle of incidence, e.g. Brewster's angle
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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
- B32B17/10174—Coatings of a metallic or dielectric material on a constituent layer of glass or polymer
- B32B17/1022—Metallic coatings
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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
- B32B17/10174—Coatings of a metallic or dielectric material on a constituent layer of glass or polymer
- B32B17/1022—Metallic coatings
- B32B17/10229—Metallic layers sandwiched by dielectric layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/10165—Functional features of the laminated safety glass or glazing
- B32B17/10339—Specific parts of the laminated safety glass or glazing being colored or tinted
- B32B17/10357—Specific parts of the laminated safety glass or glazing being colored or tinted comprising a tinted intermediate film
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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
- B32B17/10376—Laminated safety glass or glazing containing metal wires
- B32B17/10385—Laminated safety glass or glazing containing metal wires for ohmic resistance heating
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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
- B32B17/10614—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer comprising particles for purposes other than dyeing
- B32B17/10633—Infrared radiation absorbing or reflecting agents
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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
- B32B17/10651—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer comprising colorants, e.g. dyes or pigments
- B32B17/1066—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer comprising colorants, e.g. dyes or pigments imparting a tint in certain regions only, i.e. shade band
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
- B32B17/10761—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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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
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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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/10—Properties of the layers or laminate having particular acoustical properties
- B32B2307/102—Insulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
-
- 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
- B32B2307/42—Polarizing, birefringent, filtering
-
- 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
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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
- B32B2605/00—Vehicles
- B32B2605/006—Transparent parts other than made from inorganic glass, e.g. polycarbonate glazings
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
- G02B2027/0118—Head-up displays characterised by optical features comprising devices for improving the contrast of the display / brillance control visibility
Definitions
- the invention relates to windshields with head-up display (in English Head Up Display abbreviated as HUD).
- HUD head-up Display
- the main problem to be solved for the optical quality of a windshield with HUD function is the double image in reflection of the interior side of the glazing, seen by the driver.
- a technology for solving this problem consists in using a projector emitting p-polarized light.
- a projector emitting p-polarized light When the latter is projected with a specific angle of incidence called Brewster's angle onto the inside face of the windscreen (i.e. the free face oriented towards the passenger compartment of the vehicle), the reflection on each of the two air/glass interfaces of the laminated glazing, that is to say the interface of the laminate with the outside atmosphere, called face 1, and the interface of the laminate with the interior volume of the vehicle (passenger compartment), called face 4 in the case of a laminate with two sheets of glass, is eliminated.
- face 1 the interface of the laminate with the outside atmosphere
- face 4 the interface of the laminate with the interior volume of the vehicle (passenger compartment)
- the internal face of the laminated structure of the outer or inner glass sheet makes it possible to reflect part of the p-polarized light towards the eyes of the driver, forming a single image, and no longer split.
- This technique is described in application WO 2016058474.
- the reflectivity of p-polarized light is between 5 and 10%, which is certainly low for good visibility of the HUD image.
- One of the benefits of this HUD technology is that the driver wearing p-polarized glasses benefits from significantly increased contrast between the HUD image and the outside environment.
- the invention is based on the internal knowledge of the Applicant of the possibility of designing stacks of thin layers able to reflect up to more than 20% of a p-polarized light, instead of 5 to 10% described previously. It has however been observed that such stacks with high reflectivity of p-polarized light, on the inside side of the laminate in the position of assembly, have a high reflection of non-polarized light RL on the exterior side of the laminated glazing, of the order of 20%.
- This high light reflection RL is not desired. Indeed, it unsightly increases the contrast with the other neighboring glazing (vehicle side windows) and with the bodywork.
- the current light reflection RL of laminated glazing with sheets of clear glass without a thin film is 12%.
- the driver's visibility through the windscreen, from outside the vehicle is reduced, which may no longer be acceptable from a regulatory point of view in the future.
- the objective of the invention was to maintain excellent visibility by the driver of a HUD image, that is to say an internal reflection for high p-polarized light, while reducing the external light reflection.
- This objective has been achieved by the invention which, consequently, relates to a laminated glazing with light transmission TL in the visible of at least 70%, consisting of two sheets of clear glass bonded to each other by an intermediate adhesive layer, characterized in that one of the two faces of the glass sheets inside the laminated structure is coated with a stack of thin layers capable of reflecting at least 17% of p-polarized light projected under an incident angle of 65°, and in that the intermediate adhesive layer is tinted so as to absorb 5 to 25% of visible light.
- the light transmission TL in the visible of at least 70% is a general safety regulatory requirement. This requirement can also be expressed by the fact that the sum of the external luminous reflection in the visible, of the absorption of visible light of the tinted adhesive intermediate layer and of the absorption of visible light of the stack of reflective layers is at most equal to 30%.
- a tinted adhesive interlayer absorbing 15% of visible light is used, and a stack of mono-silver reflecting layers (with a single layer of silver) absorbing 5% of visible light
- the external light reflection in the visible has therefore been reduced to a maximum value of 10%; in reality, the external RL value can exceed 10% without departing from the scope of the invention, and is on the other hand at least 5%.
- the aesthetic harmony with the glazing and the surface of the neighboring automobile bodywork is guaranteed.
- the excellent visibility of the HUD image is also guaranteed thanks to the high p-polarized light reflectivity of the stack of thin reflecting layers.
- the incident angle of p-polarized light on the inside face of windshields is commonly 65°, close enough to Brewster's angle for an air-glass interface (57.2°, soda-lime glass) to render negligible the reflection of p-polarized light at these two interfaces, and so that the p-polarized light is mainly reflected by the stack of reflecting layers.
- the stack of layers is capable of reflecting at least 17% of p-polarized light, it is meant that it does so provided that it is placed between the projector emitting the light p - polarized and tinted adhesive interlayer.
- Clear glass consists of mineral glass, such as float, soda-lime, aluminosilicate, or borosilicate. At least one of the two sheets of glass can be hardened, semi-hardened or chemically reinforced, particularly in the case of thin glass (indicative thickness 0.7 mm).
- the term “clear glass” refers to glass with zero visible light absorption. Laminated glazing, the two sheets of glass, are very generally curved. Examples of an adhesive interlayer are polyvinyl butyral (PVB), thermoplastic polyurethane (TPU) or an ethylene-vinyl acetate copolymer (EVA).
- PVB polyvinyl butyral
- TPU thermoplastic polyurethane
- EVA ethylene-vinyl acetate copolymer
- optical parameters used in relation to the invention such as light transmission TL in the visible, exterior light reflection RL, interior reflection for p-polarized light, blurring, refer to visible light of wavelengths included between 380 and 780 nm, and to standard NF EN-410 applied to an automobile windshield. The values are integrated over the visible spectrum. Illuminant A is used, and measurement angles of 0° are used for light transmission, 0 and 60° for exterior light reflection, and 65 for interior reflection for p-polarized light.
- the haze of the laminated glazing of the invention must be maintained at a low value usual in the application as a windshield, for example, at most 2, preferably 1%.
- the mechanical properties of the laminated glazing of the invention are similar to those of standard laminated glazing, can be controlled in the same way to ensure the good mechanical strength of the windshield, and avoid having to modify the process of leafing.
- the stack is capable of reflecting at least 19% of p-polarized light.
- the stack is based on silver, and comprises, in a particularly preferred manner, a single layer of silver.
- the silver layer is inserted between alternating high and low refractive index layers
- the stack mainly contains, in addition to the silver layer, layers with a high refractive index, such as SiZrN.
- high and low refractive index “relatively high and relatively low refractive index”
- a ZnOx layer having for example a relatively low refractive index (compared to that of other layers) of 1.9 .
- the thickness of each of the two sheets of glass is between 0.5 and 2.5 mm.
- the tinted intermediate adhesive layer consists of polyvinyl butyral (PVB) and has a thickness of between 0.38 and 1.52 mm.
- the intermediate adhesive layer comprises a top band tinted to a greater degree, so as to absorb 40 to 100% of visible light.
- This over-tinted top band has a sunshade function.
- the colorants of the tinted adhesive interlayer can absorb only visible light while remaining gray, the stack of layers such as silver reflecting the near infrared outside the glazing.
- the colorants of the tinted interlayer adhesive absorb visible and near infrared light, for example by the fact that the interlayer adhesive layer contains nanoparticles of tungsten oxide doped with cesium WOx: Cs so as to absorb light of wavelengths between 750 and 1200 nm. In both cases, near infrared transmission is reduced, providing thermal comfort.
- the intermediate adhesive layer has a composition or a structure giving it an acoustic damping property, in particular a three-layer structure.
- the free face of the glass sheet coated with a stack of thin reflective layers comprises an antireflection coating, which may consist of a material with a low refractive index, such as a SiOx coating which may be obtained by a sol-gel process, or a thin stack of layers of alternating low and high refractive index materials, which can be obtained by a magnetron process (vacuum sputtering - reduced pressure - assisted by magnetic field), for example.
- a magnetron process vacuum sputtering - reduced pressure - assisted by magnetic field
- two opposite edges of the surface of the stack of reflective thin layers are connected to electrodes connected to an electric current supply, so as to make the stack heated, in particular to provide a demisting function, defrost.
- the invention also relates to a system comprising a laminated glazing and a p-polarized light projector, in which the laminated glazing has a light transmission TL in the visible of at least 70%, consists of two sheets of clear glass glued together by an intermediate adhesive layer, the p-polarized light is projected onto the laminated glazing according to an incident angle not varying from the Brewster angle of the air interface - clear glass more than 15°, characterized in that the face inside the laminated structure of the sheet of glass closest to the headlamp is coated with a stack of thin layers capable of reflecting at least 17% of light p- polarized screen projected at an incident angle of 65°, and in that the intermediate adhesive layer is tinted so as to absorb 5 to 25% of visible light.
- the invention also relates to the application of laminated glazing as described above as a windshield with a head-up display HUD, in which the sheet of glass coated with a stack of thin reflecting layers is oriented from side of the passenger compartment of the vehicle, and a projector emits p-polarized light onto the free surface of the laminated glazing on the side of the passenger compartment of the vehicle at an incident angle not varying from the Brewster angle of more than 15 °.
- the PVB is tinted so as to absorb 15% of visible light.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Joining Of Glass To Other Materials (AREA)
- Instrument Panels (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2009270A FR3114044B1 (fr) | 2020-09-14 | 2020-09-14 | Vitrage feuilleté à réflexion lumineuse extérieure diminuée et affichage tête haute de visibilité améliorée |
| PCT/FR2021/051538 WO2022053760A1 (fr) | 2020-09-14 | 2021-09-08 | Vitrage feuillete a reflexion lumineuse exterieure diminuee et affichage tete haute de visibilite amelioree |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4210944A1 true EP4210944A1 (fr) | 2023-07-19 |
Family
ID=74125337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21782784.9A Pending EP4210944A1 (fr) | 2020-09-14 | 2021-09-08 | Vitrage feuillete a reflexion lumineuse exterieure diminuee et affichage tete haute de visibilite amelioree |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20230358937A1 (fr) |
| EP (1) | EP4210944A1 (fr) |
| CN (1) | CN114667216A (fr) |
| FR (1) | FR3114044B1 (fr) |
| WO (1) | WO2022053760A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118700654B (zh) * | 2024-06-05 | 2025-12-09 | 福耀玻璃工业集团股份有限公司 | 夹层玻璃及投影系统 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104267499B (zh) | 2014-10-14 | 2016-08-17 | 福耀玻璃工业集团股份有限公司 | 一种抬头显示系统 |
| US10788667B2 (en) * | 2017-08-31 | 2020-09-29 | Vitro Flat Glass Llc | Heads-up display and coating therefor |
| CN111372773B (zh) * | 2017-09-29 | 2023-12-08 | Agp美洲股份公司 | 具有高强度和优异光学质量且带薄嵌体遮蔽物的夹层玻璃 |
| EP3842396B1 (fr) * | 2018-08-20 | 2024-10-09 | Sekisui Chemical Co., Ltd. | Ensemble en verre feuilleté et structure en verre feuilleté |
| EP3877176B1 (fr) * | 2018-11-09 | 2024-04-03 | Saint-Gobain Glass France | Dispositif de projection pour un affichage tête haute (hud) à rayonnement p-polarisé |
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2020
- 2020-09-14 FR FR2009270A patent/FR3114044B1/fr active Active
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2021
- 2021-09-08 CN CN202180004556.6A patent/CN114667216A/zh active Pending
- 2021-09-08 US US18/041,949 patent/US20230358937A1/en active Pending
- 2021-09-08 EP EP21782784.9A patent/EP4210944A1/fr active Pending
- 2021-09-08 WO PCT/FR2021/051538 patent/WO2022053760A1/fr not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| FR3114044B1 (fr) | 2022-11-18 |
| CN114667216A (zh) | 2022-06-24 |
| WO2022053760A1 (fr) | 2022-03-17 |
| US20230358937A1 (en) | 2023-11-09 |
| FR3114044A1 (fr) | 2022-03-18 |
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