WO2024245672A1 - Scheibe, vorrichtung und verfahren für die thermische stabilisierung eines hologrammelements - Google Patents
Scheibe, vorrichtung und verfahren für die thermische stabilisierung eines hologrammelements Download PDFInfo
- Publication number
- WO2024245672A1 WO2024245672A1 PCT/EP2024/061889 EP2024061889W WO2024245672A1 WO 2024245672 A1 WO2024245672 A1 WO 2024245672A1 EP 2024061889 W EP2024061889 W EP 2024061889W WO 2024245672 A1 WO2024245672 A1 WO 2024245672A1
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- WO
- WIPO (PCT)
- Prior art keywords
- pane
- hologram element
- temperature
- glass
- hologram
- 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
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/11—Anti-reflection coatings
- G02B1/113—Anti-reflection coatings using inorganic layer materials only
- G02B1/115—Multilayers
-
- 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
-
- 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
- G02B27/0018—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means for preventing ghost images
-
- 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0227—Applications
- H05B1/023—Industrial applications
- H05B1/0236—Industrial applications for vehicles
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/84—Heating arrangements specially adapted for transparent or reflecting areas, e.g. for demisting or de-icing windows, mirrors or vehicle windshields
Definitions
- the invention relates to a pane with thermal stabilization of at least one hologram element, a device comprising the pane, a method for thermal stabilization of at least one hologram element and the use of the pane.
- hologram elements applied to a pane and/or embedded in a laminated pane to provide visual information to the viewer in a pleasant manner.
- Holograms can be used, for example, for head-up displays, with hologram elements being laminated between the panes of a composite pane.
- the hologram can contain information recorded therein.
- the hologram can be activated by means of light emitted by a projector, and thus the information recorded in the hologram can be reproduced for the viewer.
- Head-up displays based on the principle of holography are disclosed, for example, in the publications WO 2012/156124 A1, US 2019/0056596 A1, US 10,394,032 B2, US 10,061,069 B2, US 2015/205138 A1 and WO 2022/101194 A1.
- holograms There are different types of holograms. These include, for example, reflection holograms or holograms that are based on the principle of guiding light waves in the hologram, so-called waveguide holograms.
- a photopolymer can be used as the holographic material of a hologram element, in which various optical functions can be implemented, e.g. wavelength-selective mirrors that become active for defined viewing angles.
- a hologram element comprising a photopolymer for a head-up display
- WO 2021/180471 A1 discloses a windshield comprising a reflective layer, wherein the reflective layer may comprise a holographic optical element.
- DE112020006068T5 discloses a window pane system comprising a window pane to be mounted on a mobile body, a device arranged on the window pane and comprising an organic element made of an organic material, a temperature sensor configured to detect a glass temperature of the window pane, a temperature and humidity sensor configured to detect a temperature and a humidity in an interior of the mobile body, and a control device comprising a circuit that determines, based on the glass temperature detected by the temperature sensor and the temperature and the humidity in the interior detected by the temperature and humidity sensor, whether the glass temperature exceeds a dew point temperature, when it is determined that the glass temperature is lower than or equal to the dew point temperature, turns on an electric heating wire or an electric heating film attached to the window pane or a defroster, and when the glass temperature detected by the temperature sensor exceeds a predetermined temperature, turns on the electric heating wire or the electric heating film.
- WO2022/214369A1 discloses a composite pane, comprising at least: an outer pane, an inner pane and a thermoplastic intermediate layer arranged between the outer and inner panes, an electrically conductive coating and a reflection layer which is suitable for reflecting light, wherein the reflection layer can be a holographic optical element.
- the present invention is therefore based on the object of providing a pane, a device and a method which enable a particularly precise thermal stabilization of a hologram element comprising a photopolymer.
- the object of the present invention is achieved by a pane according to claim 1, a device according to claim 11 and a method according to claim 13. Preferred embodiments emerge from the subclaims.
- the invention also relates to the use of the pane as a projection surface for a head-up display.
- the invention relates to a pane with thermal stabilization of at least one hologram element, comprising at least one glass pane with an outside surface and an inside surface, at least one hologram element arranged on the outside surface or the inside surface of the at least one glass pane, wherein the at least one hologram element comprises a photopolymer, and at least two temperature stabilization elements, wherein the at least two temperature stabilization elements are designed to temperature stabilize the at least one hologram element to a target temperature.
- the pane is intended to separate the interior from the outside environment in a window opening.
- the pane according to the invention comprises at least one glass pane, at least one hologram element and at least two temperature stabilization elements.
- the glass pane has two surfaces (main surfaces), namely an outside surface and an inside surface, and a peripheral edge surface between the two main surfaces.
- the outside surface refers to the main surface that faces the outside environment in the installed position.
- the inside surface refers to the main surface that faces the interior in the installed position.
- the at least one hologram element is arranged on the said outside surface or the inside surface of the glass pane.
- the at least one hologram element is arranged on the interior surface of the glass pane, since the at least one hologram element is thus particularly protected against impairment by mechanical and/or chemical influences from the environment.
- the pane is designed as a composite pane, with one glass pane being connected to another glass pane via a thermoplastic intermediate layer.
- the one glass pane that must be present at least in the pane according to the invention is referred to below as “the glass pane”, while the glass pane that is additionally present in the composite pane is called “another glass pane” or “another glass pane”.
- a composite pane comprises an outer pane and an inner pane that are connected to one another via the thermoplastic intermediate layer.
- the inner pane refers to the glass pane of the composite pane that faces the interior.
- the outer pane refers to the glass pane that faces the external environment.
- the glass pane can represent the inner pane or the outer pane of the composite pane and the other glass pane can represent the other.
- the at least one hologram element can be located on the outside surface or the inside surface of the glass pane that is used as the inner pane or as the outer pane. If the glass pane is used as the outer pane of the composite pane, the at least one hologram element is preferably located on the interior surface of the glass pane, since the at least one hologram element is thus protected from impairment by mechanical and/or chemical influences from the environment. Insofar as the glass pane represents the inner pane of a composite pane, the at least one hologram element is protected from these influences from the environment on both the outer surface and the interior surface of the glass pane.
- the at least one hologram element is located on the outer surface of the glass pane, which is used as the inner pane of the composite pane, whereby a particularly advantageous temperature stabilization and regulation is enabled by a temperature stabilization element located between the inner pane and the outer pane.
- the at least one hologram element is arranged on the interior surface of the glass pane when the glass pane is used as the inner pane of the composite pane, since this makes it particularly easy to stabilize and regulate the temperature by means of a temperature stabilization element that is arranged outside (externally) the glass pane and is aligned with the at least one hologram element.
- Such composite panes are Preferably used in the automotive sector as so-called laminated safety glass (VSG).
- the vehicle window can be, for example, a windshield, side window, rear window or roof window.
- the pane according to the invention is a monolithic pane which is designed as a single pane of glass. Apart from the pane of glass with the at least one hologram element, there is no other pane of glass.
- the at least one hologram element is preferably arranged on the interior surface of the pane of glass, since the at least one hologram element is thus protected from impairment by mechanical and/or chemical influences from the environment.
- the pane can be used in particular as a so-called single-pane safety glass (ESG), whereby the pane of glass is thermally tempered.
- ESG single-pane safety glass
- the monolithic vehicle pane can be, for example, a side window, rear window or roof window.
- the glass pane contains or consists of flat glass, preferably soda-lime glass, borosilicate glass or quartz glass.
- the glass can be made of clear glass or of tinted or colored glass. Clear glass is understood to be a glass pane that has an integrated light transmission according to ISO 9050 of at least 90%. Tinted or colored glass panes have a lower integrated light transmission.
- the same statements also apply to the other glass pane (i.e. inner pane or outer pane) if the pane is a composite pane.
- the thickness of the glass pane can be freely selected according to the requirements of the application. The thickness of the glass pane or the other glass pane is usually between 0.5 mm and 5 mm.
- the thermoplastic intermediate layer is preferably formed from at least one thermoplastic film, preferably a PVB film, EVA film or PU film. Typical thicknesses for such a film are in the range from 0.2 mm to 2 mm, in particular from 0.3 mm to 1 mm.
- a hologram is defined as a reflection hologram or a waveguide hologram that is arranged within a hologram element.
- the hologram element refers to the holographic medium in which the hologram is contained.
- the hologram element comprises a photopolymer.
- a hologram can be recorded in this photopolymer by exposure to a suitable light source.
- the material of the hologram element is no longer light-sensitive, since the photopolymer is changed during the process to such an extent that no further recording of a hologram is possible.
- the term hologram element refers both to the unexposed hologram element made of light-sensitive material and to the final hologram element with a recorded hologram.
- the final hologram element comprises at least one hologram, but preferably several individual holograms.
- the at least one hologram element comprises a photopolymer.
- the at least one hologram element comprises a cover layer and/or a substrate layer in addition to the photopolymer.
- the photopolymer is preferably arranged between the cover layer and the substrate layer.
- the thickness of the at least one hologram element is preferably from 10 pm to 500 pm, particularly preferably from 10 pm to 100 pm.
- the photopolymer is not particularly limited.
- the photopolymer comprises cross-linked polyurethane (PU) or polyacrylate.
- the substrate layer of the at least one hologram element can be formed, for example, from polyamide (PA) film, polycarbonate (PC) film or cellulose triacetate (TAC) film.
- the layer thickness of the substrate layer is preferably from 35 pm to 60 pm.
- the cover layer of the at least one hologram element can be formed, for example, from polyamide (PA) film, polycarbonate (PC) film, cellulose triacetate (TAC) film, polymethyl methacrylate (PMMA) film or polyethylene terephthalate (PET) film.
- the layer thickness of the cover layer is preferably from 35 pm to 60 pm.
- the photopolymer is formed as a photopolymer layer.
- the layer thickness of the photopolymer or photopolymer layer is preferably from 8 pm to 18 pm.
- the at least one hologram element can be attached in or to the pane using conventional connecting means.
- the at least one hologram element is between two polyvinyl butyral (PVB) films, two ethylene vinyl acetate (EVA) films or two films made of thermoplastic polyurethane (TPU) laminated in.
- the at least one hologram element can be attached to or in the pane using an optically clear adhesive, a so-called optical clear adhesive (OCA).
- OCA optical clear adhesive
- Suitable optically clear adhesives are known to those skilled in the art. This makes it possible to easily connect the at least one hologram element to other components of the pane.
- the pane is provided with thermal stabilization for the at least one hologram element.
- the thermal stabilization is realized with the at least two temperature stabilization elements, which are designed to stabilize the temperature of the at least one hologram element to a target temperature.
- the "target temperature” is a predefined temperature at which the photopolymer of the at least one hologram element is to fulfill its function as a holographic material.
- the target temperature is not particularly restricted.
- a room temperature of 25°C can be defined as the target temperature.
- the target temperature can also be a higher temperature.
- the target temperature is less than 90°C. More preferably, the target temperature is in a range from 15°C to 50°C, since this range is energetically advantageous.
- the at least one hologram element is thermally stabilized so that its temperature is in a range from (target temperature - 10°C) to (target temperature + 10°C), more preferably from (target temperature - 5°C) to (target temperature + 5°C).
- the at least two temperature stabilizing elements according to the invention are not particularly limited as long as they are designed to stabilize the temperature of the at least one hologram element to the target temperature.
- the at least two temperature stabilizing elements are independently selected from the group consisting of a heatable coating, a thermally insulating coating and an (external) nozzle.
- the at least one of the at least two temperature stabilization elements is a heatable coating.
- the at least one hologram element can be heated efficiently using the heatable coating, since a heatable coating itself can be heated quickly.
- the heatable coating comprises one or more, for example two, three or four functional layers.
- the functional layer comprises at least one metal, for example silver, gold, copper, nickel and/or chromium, or a metal alloy.
- the functional layer particularly preferably comprises at least 90% by weight of the metal, in particular at least 99.9% by weight of the metal.
- the functional layer can consist of the metal or the metal alloy.
- the functional layer particularly preferably comprises silver or a silver-containing alloy.
- Such a functional layer has a particularly advantageous heatability with simultaneous high transmission in the visible spectral range.
- the thickness of the functional layer is preferably from 5 nm to 50 nm, particularly preferably from 8 nm to 25 nm. In this range for the thickness of the functional layer, an advantageously high transmission in the visible spectral range and a particularly advantageous heatability are achieved.
- At least one dielectric layer is arranged between each two adjacent functional layers of the heatable coating.
- a further dielectric layer is arranged below the first and/or above the last functional layer.
- a dielectric layer contains at least one individual layer made of a dielectric material, for example containing a nitride such as silicon nitride or an oxide such as aluminum oxide.
- Dielectric layers can also comprise several individual layers, for example individual layers of a dielectric material, smoothing layers, adaptation layers, blocking layers and/or anti-reflection layers.
- the thickness of a dielectric layer is, for example, from 10 nm to 200 nm.
- This layer structure is generally obtained by a sequence of deposition processes carried out by a vacuum process such as magnetic field-assisted sputtering.
- Such a functional layer preferably has a layer thickness of 8 nm to 25 nm, particularly preferably 13 nm to 19 nm. This is particularly advantageous with regard to the transparency, color neutrality and surface resistance of the heatable coating.
- the heatable coating is provided with current busbars that are connected to the poles of a voltage source.
- current busbars that are connected to the poles of a voltage source.
- at least two outer current busbars intended for connection to a voltage source are connected to the heatable coating in such a way that a current path for a heating current is formed between the current busbars.
- the material for the current busbars is not particularly restricted as long as it enables the current path to be formed.
- the current busbars comprise a transparent and electrically conductive enamel. Due to the transparency of such an enamel, it is not necessary to arrange the current busbars in the edge area of the pane that is less visible to the viewer. Instead, the current busbars can also be arranged in central areas of the pane.
- the heatable coating is not arranged over the entire surface.
- “over the entire surface” means that at least 95% of a surface is provided with the coating.
- the current busbars are covered by at least one masking strip.
- transparent enamel means that the enamel preferably has a transmittance for visible light of more than 80%, more preferably more than 90%, even more preferably more than 95%.
- the “edge region of the pane” refers to the region of the pane which is located near the installation position of the pane in the window opening.
- the at least one masking strip comprises a colored, preferably black, material that can preferably be burned into a glass pane.
- the at least one masking strip is preferably opaque, in particular to serve as visual and UV protection, for example for an adhesive bead.
- the at least one masking strip is a coating made of one or more layers and is used to mask structures that would otherwise be visible through the pane when installed.
- the masking strip is used to mask an adhesive bead for gluing the windshield into a vehicle body, i.e. it prevents the adhesive bead, which is usually applied irregularly, from being seen from the outside, so that the windshield has a harmonious overall impression.
- the masking strip serves as UV protection for the adhesive material used. Continuous exposure to UV light damages the adhesive material and would loosen the connection between the pane and the vehicle body over time.
- the at least one masking strip can also be used, for example, to cover busbars, a temperature sensor and/or connection elements.
- a first masking strip is arranged in the edge region of the pane between the interior surface of the glass pane and the busbars such that it covers the busbars when the pane is viewed from the outside.
- a second masking strip is further arranged in the edge region of the pane such that it covers the busbars when the pane is viewed from the interior.
- a first masking strip is preferably arranged between the interior surface of the outer pane and the busbars and a second masking strip is preferably arranged between the exterior surface of the inner pane and the busbars such that these masking strips cover the busbars from both sides of the pane.
- the heatable coating is a layer or a layer structure of several individual layers with a total thickness of less than or equal to 2 pm, particularly preferably less than or equal to 1 pm.
- the total layer thickness of the heatable coating is preferably from 40 nm to 300 nm, particularly preferably from 45 nm to 250 nm.
- a sufficiently high specific heating power P and at the same time a sufficiently high transmission are advantageously achieved at distances h between two busbars that are typical for vehicle windows, in particular windshields, and an operating voltage U in the range of 12 V to 15 V or 42 V to 48 V.
- the heatable coating in this area also has particularly good reflective properties for the infrared range for the total thickness.
- the surface resistance Rouadrat is too high and therefore the specific heating power P is too low, as well as the reflective properties for the infrared range are reduced. If the total layer thickness of the heatable coating is too high, the transmission through the window is reduced too much, so that the requirements for the transmission of vehicle windows are not met.
- the heatable coating is designed in the form of thin metal wires which, when the pane is designed as a composite pane, preferably run from one edge region of the inner or outer pane to the opposite edge region of the inner or outer pane.
- the wires can also overlap.
- the diameter of the metal wires is preferably less than 0.5 mm.
- the metal wires preferably contain at least one metal, for example silver, gold, copper, nickel and/or chromium, or a metal alloy.
- the metal wires particularly preferably contain at least 90% by weight of the metal, in particular at least 99.9% by weight of the metal.
- the material of the heatable coating is preferably chosen so that, depending on the wavelength of the light source used to create the hologram, the ghost image is as minimal as possible.
- the heatable coating of the pane according to the invention preferably has a surface resistance of less than or equal to 1 ohm/square, particularly preferably from 0.4 ohm/square to 0.9 ohm/square, very particularly preferably from 0.5 ohm/square to 0.85 ohm/square, for example about 0.7 ohm/square.
- a surface resistance of less than or equal to 1 ohm/square, particularly preferably from 0.4 ohm/square to 0.9 ohm/square, very particularly preferably from 0.5 ohm/square to 0.85 ohm/square, for example about 0.7 ohm/square.
- the heatable coating in this range for the surface resistance has particularly good reflective properties for the infrared range.
- the heatable coating is connected in an edge region of the pane to two busbars provided for connection to a voltage source in such a way that a current path for a heating current is formed between the busbars.
- the heatable coating extends over 90% or more of the outside surface or the inside surface of the at least one glass pane. This arrangement the largest part of the pane can be heated efficiently.
- the heatable coating is arranged only in a partial area of the outside surface or the inside surface of the at least one glass pane.
- the heatable coating can be arranged, for example, in the areas of the surface in which the at least one hologram element is also arranged, so that targeted heating of the at least one hologram element can be made possible, which is cost-effective and energy-efficient.
- the at least one hologram element and the heatable coating are not arranged over the entire surface, and the external dimensions of the heatable coating correspond to the external dimensions of the at least one hologram element. This makes it possible to achieve energy-efficient temperature stabilization of the at least one hologram element, since only the corresponding areas in which the at least one hologram element is arranged need to be thermally stabilized and not the entire pane.
- the heatable coating is preferably arranged on the interior surface of the glass pane and is located between this surface of the glass pane and the at least one hologram element.
- the at least one hologram element is shielded as well as possible from the external environmental conditions and can also be heated by the heatable coating.
- the perceptibility of the at least one hologram element is not impaired by the presence of the heatable coating, since the heatable coating is arranged behind the at least one hologram element for the viewer in the interior.
- the heatable coating and the at least one hologram element are preferably located between the outer pane and the inner pane of the composite pane, since the heatable coating and the at least one hologram element are thus protected from the influences of the external environment.
- the heatable coating is preferably arranged behind the at least one hologram element for the viewer in the interior, thereby preventing a reduction in the perceptibility of the at least one hologram element. This can be achieved, for example, by arranging the heatable coating on the interior surface of the glass pane, which is used as the outer pane, and is located between this surface and the at least one hologram element.
- a heatable coating can be arranged between the heatable coating and the at least one hologram element, a further layer, e.g. the thermoplastic intermediate layer of the composite pane.
- the at least one hologram element is arranged on the outside surface of the glass pane, which is used as the inner pane, and the heatable coating is arranged on the at least one hologram element, so that the at least one hologram element is arranged between the heatable coating and this surface.
- a further layer e.g. the thermoplastic intermediate layer of the composite pane, can be arranged between the heatable coating and the at least one hologram element.
- the heatable coating and the at least one hologram element are arranged in direct contact with each other. This arrangement allows targeted and precise heating of the at least one hologram element to be achieved directly by the heatable coating.
- the heatable coating is structured, for example by laser ablation, in order to direct the electrical flow and heat generation in such a way that highly homogeneous heating is possible.
- At least one of the at least two temperature stabilization elements is a thermally insulating coating.
- the "thermally insulating coating” is to be understood as a coating that thermally shields the at least one hologram element as well as possible.
- the thermal shielding of the at least one hologram element is of particular importance when a rapid change in the ambient temperature occurs, caused for example by rain or snow, or, if the pane is to be used as a vehicle window, when entering or leaving a tunnel while the vehicle is being driven.
- the thermally insulating coating and the at least one hologram element are arranged in direct contact with one another. This arrangement makes it possible to achieve targeted thermal shielding of the at least one hologram element by the thermally insulating coating.
- the thermally insulating coating is preferably between the interior surface of one pane of glass and the at least one hologram element. This allows the at least one hologram element to be shielded as well as possible from the outside temperature.
- the thermally insulating coating is arranged according to one embodiment between the interior surface of the at least one glass pane, which is used as the inner pane, and the at least one hologram element.
- This arrangement means that the at least one hologram element is as far away from the outside of the pane as possible, which reduces the influence of the outside temperature on the at least one hologram element.
- the at least one hologram element in this arrangement is further thermally shielded by the thermally insulating coating.
- the thermally insulating coating is arranged between the inner pane and the outer pane according to a further embodiment.
- the thermally insulating coating can correspond to the thermoplastic intermediate layer of the composite pane.
- the thickness of the thermoplastic intermediate layer is preferably in the range from 0.4 mm to 4 mm, particularly preferably from 0.6 mm to 2 mm, whereby an increased thermally insulating effect can be achieved by the thermoplastic intermediate layer.
- the at least one hologram element is preferably arranged on the outer surface of the glass pane that is used as the inner pane, so that the thermoplastic intermediate layer is located between the at least one hologram element and the outside of the pane, whereby good thermal shielding of the at least one hologram element can be achieved.
- the at least one hologram element can be laminated between a first thermally insulating coating and a second thermally insulating coating, whereby a pane comprises the following structure, starting from the outside of the pane: outer pane, first thermally insulating coating, the at least one hologram element, second thermally insulating coating, inner pane.
- the first thermally insulating coating and the second thermally insulating coating each correspond to the above-defined thermoplastic intermediate layer of the composite pane.
- the material of the thermally insulating coating is not particularly limited as long as it is suitable for thermally shielding the at least one hologram element.
- the material of the thermally insulating coating is a material with a very low thermal conductivity.
- the thermally insulating coating is selected from at least one plastic from the group consisting of polyvinyl butyral (PVB), an ethylene-vinyl acetate copolymer (EVA) and polyurethane (PU) film.
- the thermally insulating coating is designed as a transparent aerogel.
- the at least one masking strip can be used as a thermally insulating coating.
- the thermally insulating coating can be formed over the entire surface or only cover part of a surface.
- the at least one hologram element and the thermally insulating coating are not arranged over the entire surface, and the external dimensions of the thermally insulating coating correspond to the external dimensions of the at least one hologram element.
- Such an arrangement is sufficient for the thermally insulating effect of the thermally insulating coating on the at least one hologram element.
- the thickness of the thermally insulating coating is preferably in the range from 0.2 mm to 2 mm, in particular from 0.3 mm to 1 mm. The appropriate thickness can achieve a sufficient thermal insulating effect.
- At least one of the at least two temperature stabilization elements is an external nozzle with a nozzle opening, wherein the nozzle opening is directed towards the at least one hologram element.
- the nozzle is referred to as an "external nozzle" since this nozzle is not part of the pane itself, but is arranged externally.
- the external nozzle is preferably directed at the at least one hologram element in such a way that it is completely covered by the air flow exiting the external nozzle.
- the center of the nozzle opening is preferably directed as precisely as possible at the center of the at least one hologram element. With the help of this orientation, a particularly efficient heating or cooling of the at least one hologram element can be achieved by the external nozzle.
- the external nozzle is included in a Heating, Ventilation and Air Conditioning (HVAC) system.
- HVAC Heating, Ventilation and Air Conditioning
- the external nozzle can heat or cool the at least one hologram element as required.
- the external nozzle is a nozzle of the HVAC system that is fixedly aligned with the at least one hologram element and can be operated independently of other nozzles of the HVAC system. According to this embodiment, independently of other Settings of the HVAC system, efficient temperature regulation and stabilization of at least one hologram element can be achieved using the external nozzle.
- the at least one hologram element is preferably arranged on the interior-side surface of the glass pane. If, on the other hand, the pane is designed as a composite pane and at least one of the at least two temperature stabilizing elements is an external nozzle, the at least one hologram element is preferably arranged on the interior-side surface of the glass pane that is used as the interior pane. According to these arrangements, the at least one hologram element can be easily heated or cooled using the air jet of the external nozzle.
- the pane comprises at least one hologram element, for example one hologram element, and at least two temperature stabilization elements, for example two temperature stabilization elements, wherein the at least two temperature stabilization elements are set up to stabilize the temperature of the at least one hologram element at the target temperature.
- the pane comprises at least two hologram elements and at least two temperature stabilization elements, wherein one temperature stabilization element can be set up to stabilize the temperature of a hologram element at the target temperature.
- the at least two temperature stabilization elements are preferably selected independently of one another from the group consisting of a heatable coating, a thermally insulating coating and an external nozzle.
- the special temperature stabilization elements can be combined as desired.
- the at least two temperature stabilization elements correspond to the heatable coating and the external nozzle.
- the pane further comprises a temperature sensor which is designed to measure the temperature of the at least one hologram element.
- the temperature of the at least one hologram element can be measured directly or indirectly measured using the temperature sensor.
- a "direct” measurement in the sense of the invention means that the temperature of the at least one hologram element itself is measured.
- An “indirect” measurement means that the temperature of another component of the pane is measured that is in contact with or in the immediate vicinity of the at least one hologram element.
- the temperature sensor is not particularly limited as long as it is suitable for measuring the temperature of the at least one hologram element.
- the temperature sensor can be, for example, a thermocouple or an IR thermometer.
- the temperature sensor is in contact with the at least one hologram element. In this way, a direct temperature measurement of the at least one hologram element can be carried out easily.
- the temperature sensor is preferably a thermocouple.
- the thermocouple is preferably arranged in the edge region of the pane and covered by at least one masking strip, so that the thermocouple is not visible from the outside and the inside of the pane.
- the at least one masking strip corresponds to the at least one masking strip defined above.
- a first masking strip is preferably arranged in the edge region of the pane between the interior surface of the glass pane and the thermocouple such that it covers the thermocouple when the pane is viewed from the outside.
- a second masking strip is preferably further arranged in the edge region of the pane such that it covers the thermocouple when the pane is viewed from the interior.
- a first masking strip is preferably arranged between the interior surface of the outer pane and the thermocouple and a second masking strip is preferably arranged between the exterior surface of the inner pane and the thermocouple such that these masking strips cover the thermocouple from the outside and inside of the pane.
- the temperature sensor is spaced apart from the at least one hologram element. This means that there is no direct contact between the at least one hologram element and the temperature sensor. If the temperature sensor is an IR thermometer, this can be installed in the dashboard, for example. and aligned with its measuring range towards the at least one hologram element (“direct” measurement).
- the at least one hologram element is preferably arranged on the interior surface of the glass pane when the pane is designed as a single pane of glass and preferably on the interior surface of the inner pane when the pane is designed as a composite pane, so that the measuring range of the IR thermometer is aligned directly towards the at least one hologram element and its temperature can thus be measured directly. If, however, the temperature sensor is a thermocouple, this can, for example, be in contact with the glass pane on which the at least one hologram element is arranged, so that an indirect temperature measurement can be carried out.
- the pane can further comprise adhesive layers in order to connect the individual components of the pane to one another.
- the adhesive layers are preferably made of an optically clear adhesive, a so-called optical clear adhesive (OCA), as already mentioned above.
- OCA optical clear adhesive
- Suitable optically clear adhesives are known to those skilled in the art.
- the invention further relates to a device with thermal stabilization of at least one hologram element, comprising the pane according to the invention, a dashboard, and an HVAC system, wherein the HVAC system comprises at least one nozzle arranged in the dashboard with a nozzle opening, wherein the nozzle opening is aligned with the at least one hologram element and the nozzle with the nozzle opening is a temperature stabilization element.
- the nozzle can represent a temperature stabilization element of the at least two temperature stabilization elements of the pane or an additional temperature stabilization element of the device.
- the nozzle with the nozzle opening of the device corresponds to the external nozzle defined above for the pane, whereby the nozzle is arranged in the device itself and not externally.
- the HVAC system of the device corresponds to the HVAC system defined above for the pane.
- at least the nozzle with the nozzle opening is used as a temperature stabilization element in the device.
- the device can further comprise the heatable coating defined above and/or the thermally insulating coating defined above as a temperature stabilization element.
- the device further comprises a temperature sensor.
- the temperature sensor of the device corresponds to the temperature sensor of the pane according to the invention.
- the temperature sensor in the device comprises an IR thermometer which is arranged in the dashboard and is aligned with the at least one hologram element.
- the invention further relates to a method for thermal stabilization of at least one hologram element, wherein the at least one hologram element is arranged in the pane according to the invention or in the device according to the invention, at least comprising the steps:
- the hologram element can be provided in step (a) as an unexposed hologram element made of photosensitive material or as the final hologram element with a recorded hologram. It is understood that when the unexposed hologram element is provided in step (a), the method according to the invention comprises the additional step of recording at least one hologram in the hologram element.
- step (a) The provision of the pane according to the invention or the device according to the invention in step (a) is not particularly restricted. Process steps for providing the individual elements of the pane or the device are known to those skilled in the art.
- the method is designed for thermal stabilization of at least one hologram element.
- the thermal stabilization is realized by step (b) of the method, wherein the temperature of the at least one hologram element is stabilized to the target temperature with the at least two temperature stabilization elements. Since in step (b) a temperature regulation of the at least one hologram element only takes place in the event that the measured temperature deviates from the target temperature, the Consumption of electrical energy for temperature regulation can be minimized, so that the method is energy efficient and environmentally friendly.
- step (b) is preferably only carried out when the at least one hologram element is irradiated by a light source to generate a hologram, i.e. is active.
- step (b) is preferably not carried out. Since temperature stabilization preferably only takes place when the at least one hologram element is active, the consumption of electrical energy can be reduced.
- step (b) comprises at least the following steps in order:
- the temperature measured in step (i) is transmitted to a data acquisition device, whereupon this data acquisition device compares the measured temperature with the target temperature in step (ii).
- the target temperature is preferably set before step (b). If it is determined that the measured temperature deviates from the target temperature, the at least one hologram element is heated or cooled with the at least two temperature stabilization elements in step (iii).
- the measured temperature only deviates from the target temperature if the measured temperature is outside a range from (target temperature - 10°C) to (target temperature + 10°C), more preferably from (target temperature - 5°C) to (target temperature + 5°C).
- the device for data acquisition itself can send a signal to the at least two temperature stabilization elements, whereupon the at least two temperature stabilization elements heat or cool the at least one hologram element.
- the device for data acquisition can also be connected to a device for controlling the at least two temperature stabilization elements, to which it sends the result of the adjustment from step (ii), whereupon the device for controlling sends a signal to the at least two temperature stabilization elements, whereupon the at least two temperature stabilization elements heat or cool the at least one hologram element.
- step (b) of the method is carried out several times so that the temperature of the at least one hologram element can be stabilized over the entire period of use.
- the execution of step (b) is preferably controlled dynamically. This means that, for example, rapid regulation can be ensured when the ambient conditions change significantly, for example due to the occurrence of intense solar radiation, or when the vehicle is started.
- step (b) of the method is carried out at least every 10 minutes, preferably at least every 8 minutes, more preferably at least every 5 minutes. This is advantageous when the ambient conditions are stable and the vehicle is at a constant speed.
- At least one of the at least two temperature stabilization elements according to an embodiment of the invention is a heatable coating, this can heat the at least one hologram element in step (b).
- the target temperature is preferably higher than the room temperature of 25°C.
- At least one of the at least two temperature stabilization elements is an (external) nozzle
- this can heat or cool the at least one hologram element in step (b).
- the target temperature can be selected arbitrarily, as mentioned above.
- the target temperature preferably corresponds to the room temperature of 25°C.
- the cooling function of the (external) nozzle can also help to reduce the influence of thermally induced aging on the at least one hologram element.
- the invention also relates to the use of the pane according to the invention as a projection surface for a head-up display.
- the pane When used, the pane is suitably mounted in a vehicle or in a building.
- the pane When used as a projection surface for a head-up display, the pane is preferably designed as a composite pane.
- Head-up displays are known to those skilled in the art and generally comprise an imaging unit and a projection surface.
- the imaging unit generates the image and may further comprise an optical module, e.g. a mirror optic, which redirects the image onto the projection surface.
- the imaging unit comprises an illumination device, which can be, for example, one or more illumination elements selected from incandescent lamps, gas discharge lamps, light-emitting diodes and/or laser light sources. Accordingly, visible light or laser light can be used for the exposure.
- illumination device can be, for example, one or more illumination elements selected from incandescent lamps, gas discharge lamps, light-emitting diodes and/or laser light sources. Accordingly, visible light or laser light can be used for the exposure.
- the visual information is viewed from the space facing the inner pane of the laminated pane. This is usually an interior space in which the viewer is located, e.g. a vehicle interior.
- Fig. 1 is a plan view of an embodiment of a disc 100 according to the invention.
- Fig. 2 shows a cross section through the embodiment of a pane 100 according to the invention shown in Fig. 1, wherein only one of the at least two temperature stabilization elements is shown,
- Fig. 3 shows a cross section through a further embodiment of a pane 100 according to the invention, wherein only one of the at least two temperature stabilization elements is shown,
- Fig. 4 shows a cross section through a further embodiment of a pane 100 according to the invention, wherein only one of the at least two temperature stabilization elements is shown,
- Fig. 5 shows a cross section through a further embodiment of a pane 100 according to the invention, wherein only one of the at least two temperature stabilization elements is shown,
- Fig. 6 shows a cross section through a further embodiment of a pane 100 according to the invention, wherein only one of the at least two temperature stabilization elements is shown
- Fig. 7 shows a cross section through an embodiment of a device 200 according to the invention, wherein only one of the at least two temperature stabilization elements is shown
- Fig. 8 shows an embodiment of a method according to the invention using a flow chart.
- Fig. 1 shows a plan view of an embodiment of a pane 100 according to the invention.
- the pane 100 has an upper edge O, a lower edge U and two side edges S.
- Fig. 2 shows a cross section through the embodiment of a pane 100 according to the invention shown in Fig. 1 along the section line X-X'.
- the pane 100 comprises a glass pane 1 with an outside surface I and an inside surface II, a hologram element 2 arranged on the inside surface II of the glass pane 1, and a temperature stabilization element 3 which is arranged between the inside surface II of the glass pane 1 and the hologram element 2.
- the pane 100 comprises at least one further temperature stabilization element, which is not shown in Fig. 2, however.
- This at least one further temperature stabilization element can be selected from the group consisting of a heatable coating, a thermally insulating coating and an external nozzle.
- a further temperature stabilization element can be selected from the group consisting of a heatable coating, a thermally insulating coating and an external nozzle.
- the hologram element 2 and the temperature stabilization element 3 are present over the entire surface.
- one of the at least two temperature stabilization elements in this embodiment is a heatable coating 3.
- further layers can be present in the pane 100.
- the hologram element 2 is preferably laminated between two polyvinyl butyral (PVB) films, two ethylene vinyl acetate (EVA) films or two films made of thermoplastic polyurethane (TPU) (not shown).
- the pane 100 can comprise further adhesive layers (not shown) in order to connect the individual components of the pane 100 to one another.
- the adhesive layers are preferably made of an optically clear adhesive.
- the glass pane 1 for example, consists of soda-lime glass and is 2.1 mm thick.
- the hologram element 2 comprises a photopolymer, wherein the hologram element 2 is formed as a coating on the heatable coating 3 and has a thickness of, for example, 100 pm.
- the hologram element 2 can comprise a substrate layer in addition to the photopolymer, wherein the substrate layer is arranged directly adjacent to the heatable coating 3.
- Fig. 3 shows a cross-section of a further embodiment of a pane 100 according to the invention.
- the pane 100 shown in cross-section in Fig. 3 differs from that shown in Fig. 2 in that the hologram element 2 and the heatable coating 3 are not designed to cover the entire surface and the external dimensions of the heatable coating 3 correspond to the external dimensions of the hologram element 2.
- Fig. 4 shows a cross-section of a further embodiment of a pane 100 according to the invention.
- the pane 100 shown in cross-section in Fig. 4 differs from that shown in Fig. 3 in that the pane 100 further comprises a temperature sensor 4.
- the temperature sensor 4 is in direct contact with the hologram element 2 and can measure its temperature. If the measured temperature is lower than the target temperature, the hologram element 2 can be heated by the heatable coating 3.
- the temperature sensor 4 has no contact with the heatable coating 3. This can be ensured, for example, by the pane 100 having a thermally insulating coating 5 which is located between the interior surface II of the glass pane 1 and the temperature sensor 4 and which spaced the heatable coating 3 and the temperature sensor 4 apart from one another.
- the external dimensions of the thermally insulating coating 5 correspond to the external dimensions of the temperature sensor 4.
- the temperature sensor 4 is arranged in the edge region of the pane 100.
- a first masking strip (not shown) is arranged between the interior-side surface II of the glass pane 1 and the temperature sensor 4 such that it covers the temperature sensor 4 from the outside of the pane 100.
- a second masking strip (not shown) is further arranged in the edge region of the pane 100 such that it covers the temperature sensor 4 from the inside of the pane 100.
- the temperature sensor 4 is attached to the pane 100 with an adhesive layer (not shown), such as a layer of an optically clear adhesive.
- Fig. 5 shows a cross section of a further embodiment of a disc 100 according to the invention.
- the disc 100 shown in cross section in Fig. 5 differs from that shown in Fig. 4 in that the pane 100 is designed as a composite pane, with the glass panes 1 and 6 being connected via a thermoplastic intermediate layer 7.
- the glass pane 1 is an outer pane and the glass pane 6 is an inner pane.
- the glass pane can be the outer pane 1 and the further glass pane as the inner pane 6, or the glass pane can be the inner pane 6 and the further glass pane as the outer pane 1.
- the heatable coating 3 is arranged on the interior surface II of the outer pane 1, and the hologram element 2 and the temperature sensor 4 are arranged on the outside surface III of the inner pane 6, while the thermoplastic intermediate layer 7 is located between the heatable coating 3 and the hologram element 2.
- the heatable coating 3 can also be arranged in direct contact with the hologram element 2.
- the temperature sensor 4 is arranged in the edge region of the pane 100.
- a first masking strip (not shown) is arranged in the edge region of the pane 100 between the interior surface II of the glass pane 1 and the temperature sensor 4 such that it covers the temperature sensor 4 from the outside of the pane 100.
- a second masking strip (not shown) is further arranged between the exterior surface III of the inner pane 6 and the temperature sensor 4 such that it covers the temperature sensor 4 from the inside of the pane 100.
- the hologram element 2 is preferably laminated between two polyvinyl butyral (PVB) films, two ethylene vinyl acetate (EVA) films or two films made of thermoplastic polyurethane (TPU) (not shown).
- the pane 100 can comprise further adhesive layers (not shown) in order to connect the individual components of the pane 100 to one another.
- the adhesive layers are preferably made of an optically clear adhesive.
- the glass pane 1, for example, consists of soda-lime glass and is 2.1 mm thick.
- the glass pane 6, for example, consists of soda-lime glass and is 1.6 mm thick.
- the thermoplastic intermediate layer 7 consists, for example, of polyvinyl butyral (PVB) and is 0.76 mm thick.
- Fig. 6 shows a cross section of a further embodiment of a disc 100 according to the invention.
- the disc 100 is designed as a Composite pane, as described above for Fig. 5.
- the hologram element 2 is arranged on the interior-side surface IV of the inner pane 6. Between the hologram element 2 and the interior-side surface IV of the inner pane 6 there is a thermally insulating coating 8. By arranging it on the interior-side surface IV of the inner pane 6, the hologram element 2 can be protected as well as possible from external weather conditions.
- the thermally insulating coating 8 also enables thermal shielding of the hologram element 2 and thus its thermal stabilization.
- the hologram element 2 and the thermally insulating coating 8 are not designed to cover the entire surface, and the external dimensions of the thermally insulating coating 8 correspond to the external dimensions of the hologram element 2.
- the pane 100 comprises at least one further temperature stabilization element, which is not shown in Fig. 6, however.
- This at least one further temperature stabilization element can be selected from the group consisting of a heatable coating, a thermally insulating coating and an external nozzle.
- the hologram element 2 is preferably laminated between two polyvinyl butyral (PVB) films, two ethylene vinyl acetate (EVA) films or two films made of thermoplastic polyurethane (TPU) (not shown).
- the pane 100 can comprise further adhesive layers (not shown) in order to connect the individual components of the pane 100 to one another.
- the adhesive layers are preferably made of an optically clear adhesive.
- Fig. 7 shows a cross-section of an embodiment of a device 200 according to the invention.
- the device 200 comprises a pane 100 according to the invention.
- the pane 100 is designed as a composite pane, as described above for Fig. 5.
- the hologram element 2 is arranged on the outside surface III of the inner pane 6.
- the hologram element 2 can also be arranged on the interior surface II of the outer pane 1 or the interior surface IV of the inner pane 6.
- the device 200 further comprises a dashboard 9, an HVAC system 10, wherein the HVAC system 10 comprises a nozzle 11 arranged in the dashboard 9 with a nozzle opening 12, wherein the nozzle opening 12 is aligned with the at least one hologram element 2 and the nozzle 11 with the nozzle opening 12 is a temperature stabilization element, and a temperature sensor which is an IR thermometer 13.
- a temperature sensor which is an IR thermometer 13
- the Temperature of the hologram element 2 itself or, depending on the arrangement position of the hologram element 2 the ambient temperature of the hologram element 2 can be measured. This is shown in Fig. 7 with the dashed arrow.
- the temperature of the hologram element 2 can be regulated using the nozzle 11.
- the pane 100 comprises at least one further temperature stabilization element, which is not shown in Fig. 7, however.
- This at least one further temperature stabilization element can be selected from the group consisting of a heatable coating, a thermally insulating coating and an external nozzle.
- Fig. 8 shows an embodiment of the method according to the invention for thermal stabilization of at least one hologram element 2 using a flow chart, wherein the at least one hologram element 2 is arranged in the pane 100 according to the invention or in the device 200 according to the invention, at least comprising the steps:
- P2 Stabilizing the temperature of the at least one hologram element 2 to the target temperature with the at least two temperature stabilization elements 3, 8, 11.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Joining Of Glass To Other Materials (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP24722288.8A EP4720731A1 (de) | 2023-05-30 | 2024-04-30 | Scheibe, vorrichtung und verfahren für die thermische stabilisierung eines hologrammelements |
| KR1020257039486A KR20250174698A (ko) | 2023-05-30 | 2024-04-30 | 홀로그램 소자의 열적 안정화를 위한 플레이트, 디바이스 및 방법 |
| CN202480024374.9A CN120936910A (zh) | 2023-05-30 | 2024-04-30 | 用于全息图元件的热稳定化的片材、装置以及方法 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP23175970 | 2023-05-30 | ||
| EP23175970.5 | 2023-05-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024245672A1 true WO2024245672A1 (de) | 2024-12-05 |
Family
ID=86609729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2024/061889 Ceased WO2024245672A1 (de) | 2023-05-30 | 2024-04-30 | Scheibe, vorrichtung und verfahren für die thermische stabilisierung eines hologrammelements |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4720731A1 (de) |
| KR (1) | KR20250174698A (de) |
| CN (1) | CN120936910A (de) |
| WO (1) | WO2024245672A1 (de) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012156124A1 (de) | 2011-05-16 | 2012-11-22 | Robert Bosch Gmbh | Hud mit holographischen optischen elementen |
| US20150205138A1 (en) | 2012-08-02 | 2015-07-23 | Carl Zeiss Ag | Display device |
| US10061069B2 (en) | 2012-06-22 | 2018-08-28 | Luminit Llc | Method for design and manufacturing of optics for holographic sight |
| US20190056596A1 (en) | 2015-05-04 | 2019-02-21 | Thalmic Labs Inc. | Systems, devices, and methods for angle- and wavelength-multiplexed holographic optical elements |
| US10394032B2 (en) | 2015-12-17 | 2019-08-27 | Carl Zeiss Ag | Optical system and method for transmitting a source image |
| WO2021180471A1 (de) | 2020-03-13 | 2021-09-16 | Saint-Gobain Glass France | Verbundscheibe mit photopolymerschicht und pdlc-element |
| WO2022101194A1 (de) | 2020-11-11 | 2022-05-19 | Saint-Gobain Glass France | Verbundscheibe mit hologrammelement und elektrochromem funktionselement |
| DE112020006068T5 (de) | 2019-12-11 | 2022-09-22 | AGC Inc. | Fensterscheibensystem und fensterscheibenvorrichtung |
| WO2022214369A1 (de) | 2021-04-09 | 2022-10-13 | Saint-Gobain Glass France | Beheizbare verbundscheibe für eine projektionsanordnung |
| WO2022271905A1 (en) | 2021-06-25 | 2022-12-29 | Solutia Inc. | Ir-reflective compound interlayers |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09222582A (ja) * | 1996-02-16 | 1997-08-26 | Asahi Glass Co Ltd | ホログラフィックディスプレイ |
| WO2022053404A1 (de) * | 2020-09-14 | 2022-03-17 | Saint-Gobain Glass France | Verfahren zur herstellung einer verbundscheibe mit hologramm |
-
2024
- 2024-04-30 CN CN202480024374.9A patent/CN120936910A/zh active Pending
- 2024-04-30 EP EP24722288.8A patent/EP4720731A1/de active Pending
- 2024-04-30 WO PCT/EP2024/061889 patent/WO2024245672A1/de not_active Ceased
- 2024-04-30 KR KR1020257039486A patent/KR20250174698A/ko active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012156124A1 (de) | 2011-05-16 | 2012-11-22 | Robert Bosch Gmbh | Hud mit holographischen optischen elementen |
| US10061069B2 (en) | 2012-06-22 | 2018-08-28 | Luminit Llc | Method for design and manufacturing of optics for holographic sight |
| US20150205138A1 (en) | 2012-08-02 | 2015-07-23 | Carl Zeiss Ag | Display device |
| US20190056596A1 (en) | 2015-05-04 | 2019-02-21 | Thalmic Labs Inc. | Systems, devices, and methods for angle- and wavelength-multiplexed holographic optical elements |
| US10394032B2 (en) | 2015-12-17 | 2019-08-27 | Carl Zeiss Ag | Optical system and method for transmitting a source image |
| DE112020006068T5 (de) | 2019-12-11 | 2022-09-22 | AGC Inc. | Fensterscheibensystem und fensterscheibenvorrichtung |
| WO2021180471A1 (de) | 2020-03-13 | 2021-09-16 | Saint-Gobain Glass France | Verbundscheibe mit photopolymerschicht und pdlc-element |
| WO2022101194A1 (de) | 2020-11-11 | 2022-05-19 | Saint-Gobain Glass France | Verbundscheibe mit hologrammelement und elektrochromem funktionselement |
| WO2022214369A1 (de) | 2021-04-09 | 2022-10-13 | Saint-Gobain Glass France | Beheizbare verbundscheibe für eine projektionsanordnung |
| WO2022271905A1 (en) | 2021-06-25 | 2022-12-29 | Solutia Inc. | Ir-reflective compound interlayers |
Also Published As
| Publication number | Publication date |
|---|---|
| CN120936910A (zh) | 2025-11-11 |
| KR20250174698A (ko) | 2025-12-12 |
| EP4720731A1 (de) | 2026-04-08 |
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