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WO2025031757A1 - Laminated pane assembly having a sensor window - Google Patents

Laminated pane assembly having a sensor window Download PDF

Info

Publication number
WO2025031757A1
WO2025031757A1 PCT/EP2024/070417 EP2024070417W WO2025031757A1 WO 2025031757 A1 WO2025031757 A1 WO 2025031757A1 EP 2024070417 W EP2024070417 W EP 2024070417W WO 2025031757 A1 WO2025031757 A1 WO 2025031757A1
Authority
WO
WIPO (PCT)
Prior art keywords
sensor
pane
radiation source
composite pane
composite
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/EP2024/070417
Other languages
German (de)
French (fr)
Inventor
Hadi RASTEGAR
Siyamak MEMAR JAVID
Yahya MOTEMANI SHARABIANI
Philippe Letocart
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saint Gobain Glass France SAS
Compagnie de Saint Gobain SA
Original Assignee
Saint Gobain Glass France SAS
Compagnie de Saint Gobain SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Saint Gobain Glass France SAS, Compagnie de Saint Gobain SA filed Critical Saint Gobain Glass France SAS
Publication of WO2025031757A1 publication Critical patent/WO2025031757A1/en
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • B32B1/00—Layered products having a non-planar shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • 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
    • 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
    • B32B17/10247—Laminated safety glass or glazing containing decorations or patterns for aesthetic reasons
    • B32B17/10256—Laminated safety glass or glazing containing decorations or patterns for aesthetic reasons created by printing techniques
    • B32B17/10266—Laminated safety glass or glazing containing decorations or patterns for aesthetic reasons created by printing techniques on glass pane
    • 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
    • B32B17/10348—Specific parts of the laminated safety glass or glazing being colored or tinted comprising an obscuration 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10807—Making laminated safety glass or glazing; Apparatus therefor
    • B32B17/10899—Making laminated safety glass or glazing; Apparatus therefor by introducing interlayers of synthetic resin
    • B32B17/10935—Making laminated safety glass or glazing; Apparatus therefor by introducing interlayers of synthetic resin as a preformed layer, e.g. formed by extrusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J1/00—Windows; Windscreens; Accessories therefor
    • B60J1/02—Windows; Windscreens; Accessories therefor arranged at the vehicle front, e.g. structure of the glazing, mounting of the glazing
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/20—Inorganic coating
    • 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
    • B32B2307/402—Coloured
    • B32B2307/4023—Coloured on the layer surface, e.g. ink
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/41—Opaque
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/412—Transparent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/56—Damping, energy absorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/732—Dimensional properties
    • B32B2307/737—Dimensions, e.g. volume or area
    • B32B2307/7375—Linear, e.g. length, distance or width
    • B32B2307/7376—Thickness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/08—Cars

Definitions

  • the invention relates to a composite pane arrangement with a sensor window, in particular for camera systems and methods for controlling a heating device of the sensor window.
  • Composite panes made of two or more glass or polymer panes are used in vehicles as windshields, rear windows, side windows and roof windows.
  • One or more functional coatings that have infrared-reflecting properties, anti-reflective properties or low-E properties can be arranged on individual sides of the panes.
  • Modern vehicles are increasingly being equipped with sensors, particularly with a variety of driver assistance systems with optical sensors. These include optical cameras, but also radar systems, ultrasonic sensors and Light Detection and Ranging (LiDaR). Sensor systems are placed in motor vehicles behind the windshield in the passenger compartment. They therefore offer a good view of the vehicle's surroundings and can detect dangerous situations and obstacles in traffic in good time. In order to ensure that the driver assistance systems function correctly, the vehicle's surroundings must be recorded as precisely as possible.
  • LiDaR Light Detection and Ranging
  • the sensor system is usually protected from the effects of the weather by appropriate panes of glass.
  • the panes should be as clean and fog-free as possible to ensure that the sensors function. Since fogging and icing significantly affect the transmission of electromagnetic waves, the pane should be cleared of these as quickly as possible. Wiping systems ensure that the pane is cleared of water droplets and protective particles. However, they are useless when icy, so if necessary, the affected pane segment, which serves as the camera's field of view, can be heated up for a short time.
  • EP 1 605 729 A2 discloses an electrically heated pane with a camera window.
  • the camera window is kept free of fog and ice by a heating device.
  • the heating element is laminated into the pane at the position of the camera window, with the heating element being arranged adjacent to a field of view.
  • WO 2022/223198 A1 discloses a composite pane for a head-up display with a heatable sensor area, wherein on both sides of the sensor area there is a to a voltage source is arranged, which is connected to an electrically conductive coating.
  • WO 2013/131700 A1 describes a pane arrangement with an electrically heatable lens hood.
  • the pane arrangement has a pane with a housing on the inside of the pane and a radiation receiver, a radiation source and a lens hood within the housing.
  • the lens hood contains an electrically heatable surface that heats a predetermined area of the pane.
  • the object of the present invention is to provide a composite pane arrangement with a sensor window, which ensures rapid demisting or defrosting of a sensor window.
  • the composite pane arrangement according to the invention with a sensor window comprises at least one outer pane and one inner pane, which are connected to one another over a large area to form a composite pane via at least one thermoplastic intermediate layer, the outer pane comprising a first surface facing away from the intermediate layer and a second surface facing the intermediate layer, and the inner pane comprising a first surface facing the intermediate layer and a second surface facing away from the intermediate layer.
  • the composite pane arrangement further comprises a sensor holding device which is fastened to the second surface of the inner pane and in which at least one sensor of a vehicle driving assistance system is arranged, as well as at least one optically transparent sensor window of the composite pane through which the beam path of the sensor passes.
  • the composite pane arrangement according to the invention further comprises a heating device which has at least one radiation source in the infrared wavelength range (IR range) and is arranged on the sensor holding device.
  • the heating device is intended to dry the sensor window, in other words to free it of moisture and ice.
  • the heating according to the invention i.e. de-icing or the removal of condensed moisture by means of IR radiation can be carried out much faster and more efficiently than via the known heating elements or electrically heated layers.
  • the sensor window dries within a few seconds.
  • the heating device is particularly suitable for composite panes that do not have a large-area heating function.
  • An additional advantage is that there is no need for electrically heated layers, such as silver layers within the sensor window. This leads to a simplified, more cost-effective production of the composite pane.
  • the heating device has at least one radiation source in the IR wavelength range from 0.8 pm to 3.5 pm [micrometers], in particular 1.4 pm to 3 pm.
  • the radiation source can in particular be an IR-LED (IR-emitting diode) that emits radiation with a wavelength (A) of 1450 nm [nanometers], 1950 nm or 2950 nm.
  • A 1450 nm [nanometers], 1950 nm or 2950 nm.
  • a heating device of this type also has the advantage that the sensor window does not have a metallic coating that could hinder the transmission of electromagnetic waves.
  • the manufacture of the composite pane is made much easier because a heating device does not have to be installed between the outer pane and the inner pane.
  • the radiation source is arranged such that radiation emitted by the radiation source strikes the second surface of the inner pane perpendicularly.
  • the radiation source is arranged in a recess in the sensor holder. This eliminates the need for additional soldering of connecting elements to the glass of the inner pane.
  • the radiation source is electrically contacted by one or more supply lines.
  • the heating device has several, in particular two to 40 radiation sources. This allows defrosting or the removal of condensed moisture, i.e. drying of the composite pane in the area of the sensor window, to take place particularly quickly.
  • the radiation source can be in the form of a band or a spot. Several individual radiation sources can also be arranged next to one another, spaced apart, or in the form of a band (close to one another).
  • a multi-part, band-shaped radiation source can be formed. This makes it possible to flexibly adapt the number and intensity of the radiation sources to the requirements needed for drying the respective sensor window, for example with regard to the spatial geometric conditions and the energy required for an efficient effect.
  • the sensor bracket can comprise a base part which has means for fastening the sensor and the radiation source.
  • the base part enables the sensor to be reversibly attached to the inner pane of the composite pane, with the sensor still remaining accessible from the vehicle interior.
  • the base part also comprises a substantially flat surface which extends from the sensor in the direction of the second surface of the inner pane, in particular downwards.
  • the base part also comprises two lateral walls which also extend from the sensor in the direction of the second surface of the inner pane to the sides.
  • the base part comprises a flat surface which extends from the sensor in the direction of the second surface of the inner pane and on which the at least one radiation source is arranged.
  • the base part can have openings, notches, ribs, flocking or structures in order to enable, for example, the passage of connectors such as power cables and/or signal lines which are required for the operation of the sensor and the radiation source.
  • the sensor window is intended for the transmission of electromagnetic radiation for the sensor arranged on the interior side, which is directed at the interior surface of the inner pane in such a way that it can detect the radiation entering the sensor window "from the outside" (i.e. over the outer pane in the direction of the inner pane).
  • a camera, a radar sensor or a LiDaR sensor system or a combination of these can be provided as a sensor, whereby the sensor is a sensor with an external view of the surroundings of the vehicle.
  • the sensor window can also be referred to as a camera window. It preferably takes up less than 10%, particularly preferably less than 5% of the pane surface.
  • the transparent sensor window can be surrounded by an opaque area.
  • the opaque area can be covered by a cover print. which is formed by a printed and fired enamel, in particular on the interior surface of the outer pane and/or the inner pane.
  • the intermediate layer can be opaque, for example by using opaque film sections, or an opaque element can be inserted into the intermediate layer.
  • the sensor window preferably has the shape of a square, a rectangle, a rhombus, a trapezoid, a hexagon, an octagon, a cross, an oval or a circle.
  • the sensor window is designed without a coating.
  • the sensor holder can be arranged in the middle, upper area of the composite pane when the composite pane is installed as the windshield of a vehicle.
  • the sensor holder therefore does not obstruct the view of the driver of a vehicle.
  • a cover can conceal the sensor holder so that the sensor holder is located behind the cover from the inside.
  • the sensor holder can be made of plastic.
  • the outer pane and the inner pane are preferably made of soda-lime glass, which is usual for window panes.
  • the glass pane can also be made of other types of glass (for example borosilicate glass, quartz glass, aluminosilicate glass or clear plastics, preferably rigid clear plastics, in particular polyethylene, polypropylene, polycarbonate, polymethyl methacrylate, polystyrene, polyamide, polyester, polyvinyl chloride and/or mixtures thereof).
  • the thickness of the outer pane and the inner pane can vary widely.
  • the panes are preferably in the range of 0.5 mm to 10 mm thick, preferably 1 mm to 5 mm.
  • the size of the panes can vary widely and depends on the size of the use according to the invention.
  • the inner pane and optionally the outer pane have areas of 200 cm 2 to 20 m 2 , which are common in vehicle construction, for example.
  • the thermoplastic intermediate layer comprises at least one layer of a thermoplastic connecting material, which preferably contains or consists of ethylene vinyl acetate (EVA), polyvinyl butyral (PVB) or polyurethane (PU) or mixtures or copolymers or derivatives thereof, particularly preferably PVB.
  • the intermediate layer is typically formed from at least one thermoplastic film.
  • the thickness of the film is preferably 0.3 mm to 2 mm, with the standard thicknesses of 0.36 mm and 0.76 mm being particularly common.
  • the intermediate layer can also comprise several layers of thermoplastic material and can be made, for example, from several polymer films arranged one above the other.
  • the outer pane, the inner pane and the thermoplastic intermediate layer can be clear and colorless, but also tinted or colored.
  • the inner pane and outer pane are laminated together via the intermediate layer, for example using autoclave processes, vacuum bag processes, vacuum ring processes, calender processes, vacuum laminators or combinations thereof.
  • the connection between the outer pane and the inner pane is usually carried out under the influence of heat, vacuum and/or pressure.
  • the composite pane can have any three-dimensional shape.
  • the panes are planar or slightly or strongly curved in one or more directions of space.
  • the inner pane and the outer pane are preferably transparent, in particular for use of the pane as a windshield or rear window of a vehicle or other uses where high light transmission is desired.
  • a pane is understood to be transparent in the sense of the invention if it has a transmission in the visible spectral range of greater than 70%.
  • the transmission can also be much lower, for example greater than 5%.
  • the composite pane can additionally comprise a cover print, in particular made of a dark, preferably black, enamel.
  • the cover print is in particular a peripheral, i.e. frame-like, cover print, which is thus arranged in a peripheral edge region, and/or the cover print that is arranged in an area surrounding the sensor window.
  • the peripheral cover print serves primarily as UV protection for the assembly adhesive of the composite pane.
  • the cover print can be opaque and full-surface.
  • the cover print can also be semi-transparent, at least in sections, for example as a dot grid, stripe grid or checkered grid. Alternatively, the cover print can also have a gradient, for example from an opaque covering to a semi-transparent covering.
  • the cover print is applied to the second surface of the outer pane facing the intermediate layer or to the second surface of the inner pane facing away from the intermediate layer.
  • the composite pane arrangement with sensor window according to the invention serves to separate an interior from an external environment. It comprises the inner pane and outer pane as well as the sensor holder with radiation source.
  • the inner pane refers to the pane which is intended to face the interior of the vehicle in the installed position.
  • the outer pane refers to the pane which is intended to face the external environment of the vehicle in the installed position.
  • the upward-facing edge is referred to as the upper edge (for example, the roof edge in a motor vehicle)
  • the downward-facing edge of the composite pane for example, the engine edge in a motor vehicle
  • the edges running in between are referred to as side edges.
  • the composite pane arrangement can be used in a variety of ways: In the case of a composite pane as a window pane of a vehicle, it can be, for example, a roof pane, in particular a windshield, a rear window or a side window.
  • the composite pane is particularly preferably a front pane, in particular a windshield.
  • the object is further achieved by a method for controlling a heating device of a sensor window in a vehicle by a heating system comprising a composite pane arrangement according to the invention, wherein the radiation source is connected to at least one control device (controller) and/or on-board electronics, wherein the method comprises the following steps:
  • the sensor holding device comprises a base part which has means for fastening the sensor and the radiation source and wherein the radiation source is arranged in the base part such that the radiation emitted by the radiation source strikes the second surface of the inner pane substantially perpendicularly
  • the radiation source can be connected to at least one humidity sensor. This can advantageously be used for automated de-icing or removal of condensed moisture. In addition, It is also possible to prevent the icing of the laminated pane or the formation of condensate and the resulting obstruction of visibility.
  • the object is further achieved by a computer-readable storage medium which contains instructions which cause at least one processor to implement a method according to the invention when the instructions are executed by the at least one processor.
  • the computer-readable storage medium offers similar advantages and technical effects as those described in connection with the composite pane arrangement and the method.
  • a further aspect of the invention comprises the use of the composite pane arrangement according to the invention in means of transport for traffic on land, in the air or on water, in particular in motor vehicles, for example as a windshield.
  • Figure 1 is a plan view of a composite pane arrangement according to the invention with a sensor window
  • Figure 2 is an enlarged view of the sensor window from Figure 1
  • Figure 3 is a cross-sectional view along the section line A-A' from Figure 1.
  • FIG. 1 shows a plan view of an embodiment of a composite pane arrangement 100 according to the invention.
  • the composite pane arrangement 100 comprises a composite pane 10 which is constructed from an outer pane 1, a thermoplastic intermediate layer 3 and an inner pane 2.
  • the thermoplastic intermediate layer 3 is arranged between the outer pane 1 and the inner pane 2.
  • the composite pane 10 is, for example, a windshield of a passenger car.
  • the outer pane 1 faces the outside environment
  • the inner pane 2 faces the vehicle interior 12.
  • the upward-facing edge is referred to as the upper edge O
  • the downward-facing edge of the composite pane is referred to as the lower edge U.
  • the edges running in between are referred to as side edges S.
  • the composite pane 10 has a sensor window 4, which is trapezoidal in the embodiment of a composite pane 10 according to the invention shown in Fig. 1.
  • the outer pane 1 and the inner pane 2 consist, for example, of soda-lime glass.
  • the outer pane 1 has, for example, a thickness of 2.1 mm
  • the inner pane 2 has, for example, a thickness of 1.6 mm.
  • the thermoplastic intermediate layer 3 is, for example, an intermediate layer made of PVB with acoustic damping properties and has a thickness of 0.76 mm.
  • the composite pane 10 has a cover print 9 on a second surface II of the outer pane 1 facing the intermediate layer.
  • the cover print 9 is arranged in a peripheral edge area and in an area surrounding the sensor window 4.
  • the cover print 9 is, for example, a black enamel.
  • the cover print 9 is shown in gray in Figure 1.
  • the cover print 9 can also be applied to the first surface III of the inner pane 2 facing the intermediate layer.
  • the composite pane arrangement 100 further comprises a sensor holding device 5 ( Figure 3) which is fastened to the second surface IV of the inner pane 2 and in which at least one sensor 8 of a vehicle driving assistance system is arranged.
  • the sensor holding device 5 can be designed as a plastic housing which is glued to the second surface IV of the inner pane 2.
  • the sensor 8 can be an optical camera, a radar system, ultraviolet (UV) sensors, an ultrasound sensor and a light detection and ranging (LiDaR) sensor system.
  • the beam path of the sensor 4 can pass through the optically transparent sensor window 4 of the composite pane 10.
  • the composite pane arrangement 100 further comprises a heating device 6 for drying the sensor window 4, which has at least one radiation source 7 (Figure 2) in the infrared wavelength range (IR range) and is arranged on the sensor holding device 5.
  • Figure 2 shows an enlarged view of the sensor window 4 from Figure 1 .
  • the heating device 6 comprises 30 radiation sources 7.
  • the Radiation sources 7 are so-called IR-emitting diodes (IR-LEDs) that emit radiation with a wavelength (A) of 1450 nm [nanometers], 1950 nm or 2950 nm.
  • the individual radiation sources 7 are spaced apart from one another or arranged in a band shape (close to one another). If several spot-shaped IR-LEDs are arranged next to one another, a multi-part, band-shaped radiation source can be formed.
  • Figure 3 shows a cross section through the composite pane arrangement 100 according to Figure 1 along the section line A-A'.
  • the outer pane 1 faces the outside environment
  • the inner pane 2 faces the vehicle interior 12.
  • the first, outside surface of the outer pane 1 is referred to as side I.
  • the second, interior-side surface of the outer pane 1 is referred to as side II.
  • the second surface II of the outer pane 1 faces the intermediate layer.
  • the first outside surface of the inner pane 2 is referred to as side III.
  • the second interior-side surface of the inner pane 2 is referred to as side IV.
  • the second surface IV of the inner pane 2 faces away from the intermediate layer.
  • the first surface III of the inner pane 2 and the second surface II of the outer pane 1 face each other and are connected to each other via the thermoplastic intermediate layer 3.
  • the second surface IV of the inner pane 2 and the first surface I of the outer pane 1 face each other and away from the thermoplastic intermediate layer 3.
  • the sensor holding device 5 can comprise a base part 5.1, which has means for fastening the sensor 8 and the radiation source 7.
  • the base part 5.1 enables a reversible attachment of the sensor 8 to the inner pane 2 of the composite pane 10, wherein the sensor 8 remains accessible from the vehicle interior.
  • the base part 5.1 comprises a substantially flat surface that extends from the sensor in the direction of the second surface IV of the inner pane, in particular downwards.
  • the base part 5.1 comprises two lateral walls that also extend from the sensor in the direction of the second surface IV of the inner pane 2 to the sides.
  • the base part 5.1 comprises the flat surface extending from the sensor 8 in the direction of the second surface IV of the inner pane 2, on which the at least one radiation source 7 is arranged.
  • the base part has openings, notches, ribs, flockings or structures to allow passage of connectors such as power cables and/or signal lines required for operation of the sensor and the radiation source.
  • a flocking can contain fibers, preferably black fibers with a length of up to 1 mm.
  • the radiation source 7 is arranged in a recess in the sensor holding device 5, in particular in the base part 5.1. Because the radiation source 7 in the sensor holding device 5, additional soldering of connecting elements to the glass of the inner pane 2 is unnecessary. This prevents temperature-related stresses in the glass or even glass breakage in the area of the sensor window. By arranging the radiation source 7 in this way, a particularly energy-efficient removal of moisture is achieved.
  • the radiation source 7 is electrically contacted by one or more supply lines within the sensor holding device.
  • the heating device 6 can have several radiation sources 7. This allows the defrosting or drying of the composite pane 10 in the area of the sensor window 4 to take place particularly quickly.
  • the radiation sources 7 can be designed in the shape of a band or a spot.
  • the individual radiation sources 7 are arranged in the base part 5.1 in such a way that the radiation emitted by the respective radiation source 7 strikes the second surface IV of the inner pane 2 essentially perpendicularly. With such an arrangement, the energy efficiency is particularly high, so that the defrosting and evaporation of water begins particularly quickly.
  • the composite pane 10 is a windshield that is installed in the vehicle at an installation angle. Outside the sensor window 4, the composite pane 10 can have an electrically conductive, transparent coating, wherein the electrically conductive, transparent coating can be arranged, in particular essentially over the entire surface, outside the camera window on the first surface III of the inner pane 2.

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Abstract

The present invention relates to a laminated pane assembly (100) having a sensor window (4), at least comprising: • a sensor holding device (5), which is attached to a second surface (IV) of the inner pane (2) and in which at least one sensor of a vehicle driving assistance system is arranged, • at least one optically transparent sensor window (2) of the laminated pane (10), through which the beam path of the sensor (3) passes, • a heating device (6), wherein the heating device (6) has at least one radiation source (7) in the infrared wavelength range and is arranged on the sensor holding device (5), and wherein the radiation source (7) is arranged in a recess in the sensor holding device (5).

Description

Verbundscheibenanordnung mit Sensorfenster composite pane arrangement with sensor window

Die Erfindung betrifft eine Verbundscheibenanordnung mit Sensorfenster, insbesondere für Kamerasysteme und Verfahren zur Steuerung einer Heizvorrichtung des Sensorfensters. The invention relates to a composite pane arrangement with a sensor window, in particular for camera systems and methods for controlling a heating device of the sensor window.

Verbundscheiben aus zwei oder mehreren gläsernen oder polymeren Scheiben werden in Fahrzeugen als Windschutzscheiben, Heckscheiben, Seitenscheiben und Dachscheiben eingesetzt. Auf einzelnen Seiten der Scheiben können eine oder mehrere funktionelle Beschichtungen angeordnet sein, die infrarotreflektierende Eigenschaften, antireflex- Eigenschaften oder Low-E-Eigenschaften aufweisen. Composite panes made of two or more glass or polymer panes are used in vehicles as windshields, rear windows, side windows and roof windows. One or more functional coatings that have infrared-reflecting properties, anti-reflective properties or low-E properties can be arranged on individual sides of the panes.

Moderne Fahrzeuge werden zunehmend mit Sensoren ausgestattet, insbesondere mit einer Vielzahl von Fahrerassistenzsystemen mit optischen Sensoren. Hierzu zählen zum Beispiel optische Kameras, aber auch Radarsysteme, Ultraschallsensoren sowie Light Detection and Ranging (LiDaR). Sensorsysteme werden in Kraftfahrzeugen hinter der Windschutzscheibe im Fahrgastraum platziert. Damit bieten sie eine gute Sicht auf die Umgebung des Fahrzeugs und können im Straßenverkehr Gefahrensituationen und Hindernisse rechtzeitig erkennen. Um eine korrekte Funktionsweise der Fahrerassistenzsysteme zu gewährleisten, ist eine möglichst exakte Erfassung der Umgebung des Fahrzeugs nötig. Modern vehicles are increasingly being equipped with sensors, particularly with a variety of driver assistance systems with optical sensors. These include optical cameras, but also radar systems, ultrasonic sensors and Light Detection and Ranging (LiDaR). Sensor systems are placed in motor vehicles behind the windshield in the passenger compartment. They therefore offer a good view of the vehicle's surroundings and can detect dangerous situations and obstacles in traffic in good time. In order to ensure that the driver assistance systems function correctly, the vehicle's surroundings must be recorded as precisely as possible.

Üblicherweise wird das Sensorsystem durch entsprechende Scheiben vor Witterungseinflüssen geschützt, dabei sollten die Scheiben möglichst sauber und beschlagsfrei sein und damit Funktionalität der Sensoren gewährleisten. Da Beschlag und Vereisungen die Transmission von elektromagnetischen Wellen deutlich beeinflussen, sollte die Scheibe möglichst schnell davon befreit werden. Wischsysteme gewährleisten, dass die Scheibe von Wassertropfen und Schutzpartikeln befreit werden. Bei Vereisungen sind sie allerdings unbrauchbar, deshalb ist bei Bedarf eine kurzfristige Aufheizung des betroffenen Scheibensegments, das für die Kamera als Sichtfeld dient, vorgesehen. The sensor system is usually protected from the effects of the weather by appropriate panes of glass. The panes should be as clean and fog-free as possible to ensure that the sensors function. Since fogging and icing significantly affect the transmission of electromagnetic waves, the pane should be cleared of these as quickly as possible. Wiping systems ensure that the pane is cleared of water droplets and protective particles. However, they are useless when icy, so if necessary, the affected pane segment, which serves as the camera's field of view, can be heated up for a short time.

EP 1 605 729 A2 offenbart eine elektrisch beheizbare Scheibe mit einem Kamerafenster. Das Kamerafenster wird über eine Heizvorrichtung beschlags- und eisfrei gehalten. Das Heizelement wird an der Position des Kamerafensters in die Scheibe einlaminiert, wobei das Heizelement benachbart zu einem Sichtfeld angeordnet ist. EP 1 605 729 A2 discloses an electrically heated pane with a camera window. The camera window is kept free of fog and ice by a heating device. The heating element is laminated into the pane at the position of the camera window, with the heating element being arranged adjacent to a field of view.

WO 2022/223198 A1 offenbart eine Verbundscheibe für ein Head-Up-Display mit einem beheizbarem Sensorbereich, wobei beidseitig des Sensorbereichs jeweils ein zum Anschluss an eine Spannungsquelle vorgesehener Sammelleiter angeordnet ist, der mit einer elektrisch leitfähigen Beschichtung verbunden ist. WO 2022/223198 A1 discloses a composite pane for a head-up display with a heatable sensor area, wherein on both sides of the sensor area there is a to a voltage source is arranged, which is connected to an electrically conductive coating.

In der WO 2013/131700 A1 wird eine Scheibenanordnung mit einer elektrisch beheizbaren Streulichtblende beschrieben. Dazu weist die Scheibenanordnung eine Scheibe mit einer Einhausung auf der Innenseite der Scheibe sowie einen Strahlungsempfänger, eine Strahlungsquelle und eine Streulichtblende innerhalb der Einhausung auf. In der Streulichtblende befindet sich eine elektrisch beheizbare Fläche, die einen vorgegebenen Bereich der Scheibe beheizt. WO 2013/131700 A1 describes a pane arrangement with an electrically heatable lens hood. The pane arrangement has a pane with a housing on the inside of the pane and a radiation receiver, a radiation source and a lens hood within the housing. The lens hood contains an electrically heatable surface that heats a predetermined area of the pane.

Die Aufgabe der vorliegenden Erfindung besteht darin, eine Verbundscheibenanordnung mit einem Sensorfenster bereitzustellen, welche eine schnelle Beschlagsfreiheit bzw. Enteisung eines Sensorfensters gewährleistet. The object of the present invention is to provide a composite pane arrangement with a sensor window, which ensures rapid demisting or defrosting of a sensor window.

Die Aufgabe der vorliegenden Erfindung wird erfindungsgemäß durch eine Verbundscheibenanordnung mit Sensorfenster gemäß Anspruch 1 gelöst. Bevorzugte Ausführungen gehen aus den Unteransprüchen hervor. The object of the present invention is achieved by a composite pane arrangement with a sensor window according to claim 1. Preferred embodiments emerge from the subclaims.

Die erfindungsgemäße Verbundscheibenanordnung mit einem Sensorfenster umfasst mindestens eine Außenscheibe und eine Innenscheibe, die über mindestens eine thermoplastische Zwischenschicht miteinander flächig zu einer Verbundscheibe verbunden sind, wobei die Außenscheibe eine erste, von der Zwischenschicht abgewandte Oberfläche und eine zweite, zur der Zwischenschicht hingewandte Oberfläche umfasst und die Innenscheibe eine erste, zur Zwischenschicht hingewandte Oberfläche sowie eine zweite, von der Zwischenschicht abgewandte Oberfläche umfasst. Ferner umfasst die Verbundscheibenanordnung eine Sensorhalteeinrichtung, welche an der zweiten Oberfläche der Innenscheibe befestigt ist und in welche mindestens ein Sensor eines Fahrzeugfahrassistenzsystems angeordnet ist, sowie mindestens ein optisch transparentes Sensorfenster der Verbundscheibe, durch das der Strahlengang des Sensors hindurchgeht. Weiterhin umfasst die erfindungsgemäße Verbundscheibenanordnung eine Heizvorrichtung, welche mindestens eine Strahlungsquelle im Infrarot- Wellenlängenbereich (IR-Bereich) aufweist und an der Sensorhalteeinrichtung angeordnet ist. Insbesondere ist die Heizvorrichtung dazu vorgesehen das Sensorfenster zu trocknen, mit anderen Worten von Feuchtigkeit und Vereisung zu befreien. The composite pane arrangement according to the invention with a sensor window comprises at least one outer pane and one inner pane, which are connected to one another over a large area to form a composite pane via at least one thermoplastic intermediate layer, the outer pane comprising a first surface facing away from the intermediate layer and a second surface facing the intermediate layer, and the inner pane comprising a first surface facing the intermediate layer and a second surface facing away from the intermediate layer. The composite pane arrangement further comprises a sensor holding device which is fastened to the second surface of the inner pane and in which at least one sensor of a vehicle driving assistance system is arranged, as well as at least one optically transparent sensor window of the composite pane through which the beam path of the sensor passes. The composite pane arrangement according to the invention further comprises a heating device which has at least one radiation source in the infrared wavelength range (IR range) and is arranged on the sensor holding device. In particular, the heating device is intended to dry the sensor window, in other words to free it of moisture and ice.

Die erfindungsgemäße Beheizung, also die Enteisung oder die Entfernung von kondensierter Feuchtigkeit mittels IR-Strahlung kann deutlich schneller und effizienter erfolgen als über die bisher bekannten Heizelemente oder elektrisch beheizbaren Schichten. Eine Trocknung des Sensorfenster findet innerhalb weniger Sekunden statt. Weiterhin ist die Heizvorrichtung besonders geeignet für Verbundscheiben, die keine großflächige Heizfunktion aufweisen. Ein zusätzlicher Vorteil ist, dass auf eingebrachte, elektrisch beheizbare Schichten, wie zum Beispiel Silberschichten innerhalb des Sensorfensters, verzichtet werden kann. Dies führt zu einer vereinfachten, kostengünstigeren Herstellung der Verbundscheibe. The heating according to the invention, i.e. de-icing or the removal of condensed moisture by means of IR radiation can be carried out much faster and more efficiently than via the known heating elements or electrically heated layers. The sensor window dries within a few seconds. Furthermore, the heating device is particularly suitable for composite panes that do not have a large-area heating function. An additional advantage is that there is no need for electrically heated layers, such as silver layers within the sensor window. This leads to a simplified, more cost-effective production of the composite pane.

Gemäß einer Weiterbildung der Erfindung weist die Heizvorrichtung mindestens eine Strahlungsquelle im IR- Wellenlängenbereich von 0,8 pm bis 3,5 pm [Mikrometer], insbesondere 1 ,4 pm bis 3 pm auf. Die Strahlungsquelle kann insbesondere eine IR-LED (IR- emittierende Diode) sein, die Strahlung mit einer Wellenlänge (A) von 1450 nm [Nanometer], 1950 nm oder 2950 nm emittiert. Gerade im bevorzugten Wellenlängenbereich ist die Absorption und die Anregung der Wassermoleküle und damit die daraus folgende Erwärmung und Verdampfung besonders groß. Vorteilhafterweise hat sich gezeigt, dass bei Glas die Transmission im Wellenlängenbereich von A = 2,9 pm bis A = 3,1 pm mit über 70 %, insbesondere bei ca. A = 3,0 pm mit ca. 85 % besonderes groß ist, so dass die Energie effizient zur Enteisung und Verdampfung von Wasser eingesetzt werden kann. According to a development of the invention, the heating device has at least one radiation source in the IR wavelength range from 0.8 pm to 3.5 pm [micrometers], in particular 1.4 pm to 3 pm. The radiation source can in particular be an IR-LED (IR-emitting diode) that emits radiation with a wavelength (A) of 1450 nm [nanometers], 1950 nm or 2950 nm. The absorption and excitation of the water molecules and thus the resulting heating and evaporation is particularly high in the preferred wavelength range. Advantageously, it has been shown that with glass the transmission in the wavelength range from A = 2.9 pm to A = 3.1 pm is particularly high at over 70%, especially at approx. A = 3.0 pm at approx. 85%, so that the energy can be used efficiently for defrosting and evaporating water.

Damit wird eine Erwärmung von Glas vermieden und die Ausbildung von temperaturbedingten Spannungen im Bereich des Sensorfenster reduziert sowie Glasbruch vermieden. Eine derartige Heizvorrichtung hat weiterhin den Vorteil, dass das Sensorfenster keine metallische Beschichtung aufweist, die für eine Transmission von elektromagnetischen Wellen hinderlich sein könnte. Zusätzlich wird die Herstellung der Verbundscheibe deutlich vereinfacht, da eine Heizvorrichtung zwischen der Außenscheibe und Innenscheibe nicht angebracht werden muss. This prevents the glass from heating up and reduces the formation of temperature-related stresses in the area of the sensor window, as well as preventing glass breakage. A heating device of this type also has the advantage that the sensor window does not have a metallic coating that could hinder the transmission of electromagnetic waves. In addition, the manufacture of the composite pane is made much easier because a heating device does not have to be installed between the outer pane and the inner pane.

In einer bevorzugten Ausgestaltung ist die Strahlungsquelle derart angeordnet, dass eine von der Strahlungsquelle emittierte Strahlung senkrecht auf die zweite Oberfläche der Innenscheibe auftrifft. Durch eine derartige Anordnung der Strahlungsquelle wird eine besonders energieeffiziente Entfernung der Feuchtigkeit erreicht. In a preferred embodiment, the radiation source is arranged such that radiation emitted by the radiation source strikes the second surface of the inner pane perpendicularly. By arranging the radiation source in this way, particularly energy-efficient removal of moisture is achieved.

Erfindungsgemäß ist die Strahlungsquelle in einer Ausnehmung in der Sensorhalteeinrichtung angeordnet. Damit ist ein zusätzliches Verbindungslöten von Anschlusselementen auf Glas der Innenscheibe überflüssig. Die Strahlungsquelle wird durch eine oder mehrere Zuleitungen elektrisch kontaktiert. In einer weiteren Ausgestaltung weist die Heizvorrichtung mehrere, insbesondere zwei bis 40 Strahlungsquellen auf. Dadurch kann die Enteisung oder die Entfernung von kondensierter Feuchtigkeit, also eine Trocknung der Verbundscheibe im Bereich des Sensorfensters, besonders schnell erfolgen. Die Strahlungsquelle kann bandförmig oder spotförmig ausgebildet sein. Mehrere einzelne Strahlungsquellen können auch nebeneinander beabstandet, oder bandförmig (dicht aneinander) ausgebildet, angeordnet werden. Werden mehrere spotförmige IR-LED nebeneinander angeordnet, kann also mit anderen Worten eine mehrteilige, bandförmige Strahlungsquelle ausgebildet werden. Dies ermöglicht es, flexibel die Anzahl und Intensität der Strahlungsquellen an die für die Trocknung des jeweiligen Sensorfensters benötigten Anforderungen, beispielsweise hinsichtlich der räumlichgeometrischen Gegebenheiten und den benötigten energetischen Bedarf für eine effiziente Wirkung, anzupassen. According to the invention, the radiation source is arranged in a recess in the sensor holder. This eliminates the need for additional soldering of connecting elements to the glass of the inner pane. The radiation source is electrically contacted by one or more supply lines. In a further embodiment, the heating device has several, in particular two to 40 radiation sources. This allows defrosting or the removal of condensed moisture, i.e. drying of the composite pane in the area of the sensor window, to take place particularly quickly. The radiation source can be in the form of a band or a spot. Several individual radiation sources can also be arranged next to one another, spaced apart, or in the form of a band (close to one another). In other words, if several spot-shaped IR LEDs are arranged next to one another, a multi-part, band-shaped radiation source can be formed. This makes it possible to flexibly adapt the number and intensity of the radiation sources to the requirements needed for drying the respective sensor window, for example with regard to the spatial geometric conditions and the energy required for an efficient effect.

Die Sensorhalteinrichtung (engl. Bracket) kann ein Basisteil umfassen, welches Mittel zur Befestigung des Sensors und der Strahlungsquelle aufweist. Das Basisteil ermöglicht ein reversibles Anbringen des Sensors an der Innenscheibe der Verbundscheibe, wobei der Sensor weiterhin vom Fahrzeuginnenraum aus zugänglich bleibt. Ferner umfasst das Basisteil eine im Wesentlichen ebene Fläche, die sich vom Sensor in Richtung der zweiten Oberfläche der Innenscheibe, insbesondere nach unten, erstreckt. Weiterhin umfasst das Basisteil zwei seitliche Wände, die sich ebenfalls von dem Sensor in Richtung der zweiten Oberfläche der Innenscheibe zu den Seiten hin erstecken. Das Basisteil umfasst eine ebene, sich vom Sensor in Richtung der zweiten Oberfläche der Innenscheibe erstreckende Fläche, an der die mindestens eine Strahlungsquelle angeordnet ist. Zusätzlich kann das Basisteil Öffnungen, Kerben, Rippen, Beflockungen oder Strukturen aufweisen um beispielsweise einen Durchgang von Steckverbindern wie Stromkabel und/oder Signalleitungen zu ermöglichen, die für den Betrieb des Sensors und der Strahlungsquelle erforderlich sind. The sensor bracket can comprise a base part which has means for fastening the sensor and the radiation source. The base part enables the sensor to be reversibly attached to the inner pane of the composite pane, with the sensor still remaining accessible from the vehicle interior. The base part also comprises a substantially flat surface which extends from the sensor in the direction of the second surface of the inner pane, in particular downwards. The base part also comprises two lateral walls which also extend from the sensor in the direction of the second surface of the inner pane to the sides. The base part comprises a flat surface which extends from the sensor in the direction of the second surface of the inner pane and on which the at least one radiation source is arranged. In addition, the base part can have openings, notches, ribs, flocking or structures in order to enable, for example, the passage of connectors such as power cables and/or signal lines which are required for the operation of the sensor and the radiation source.

Das Sensorfenster ist zur Transmission von elektromagnetischer Strahlung für den innenraumseitig angeordneten Sensor vorgesehen, welcher derart auf die innenraumseitige Oberfläche der Innenscheibe gerichtet ist, dass er die „von außen“ (also über die Außenscheibe in Richtung der Innenscheibe) durch das Sensorfenster tretende Strahlung detektieren kann. Als Sensor kann eine Kamera, ein Radarsensor oder ein LiDaR Sensorsystem oder eine Kombination aus diesen vorgesehen sein, wobei der Sensor ein Sensor mit Außensicht auf die Umgebung des Fahrzeugs ist. Das Sensorfenster kann auch als Kamerafenster bezeichnet werden. Es nimmt bevorzugt weniger als 10%, besonders bevorzugt weniger als 5% der Scheibenoberfläche ein. Das transparente Sensorfenster kann von einem opaken Bereich umgeben sein. Der opake Bereich kann durch einen Abdeckdruck realisiert sein, welcher durch eine aufgedruckte und eingebrannte Emaille gebildet ist, insbesondere auf der innenraumseitigen Oberfläche der Außenscheibe und/oder der Innenscheibe. Alternativ kann die Zwischenschicht opak ausgebildet sein, beispielweise durch Verwendung von opaken Folienabschnitten, oder es kann ein opakes Element in die Zwischenschicht eingelegt sein. The sensor window is intended for the transmission of electromagnetic radiation for the sensor arranged on the interior side, which is directed at the interior surface of the inner pane in such a way that it can detect the radiation entering the sensor window "from the outside" (i.e. over the outer pane in the direction of the inner pane). A camera, a radar sensor or a LiDaR sensor system or a combination of these can be provided as a sensor, whereby the sensor is a sensor with an external view of the surroundings of the vehicle. The sensor window can also be referred to as a camera window. It preferably takes up less than 10%, particularly preferably less than 5% of the pane surface. The transparent sensor window can be surrounded by an opaque area. The opaque area can be covered by a cover print. which is formed by a printed and fired enamel, in particular on the interior surface of the outer pane and/or the inner pane. Alternatively, the intermediate layer can be opaque, for example by using opaque film sections, or an opaque element can be inserted into the intermediate layer.

Vorzugsweise weist das Sensorfenster die Form eines Quadrats, eines Rechtecks, einer Raute, eines Trapezes, eines Hexagons, eines Oktagons, eines Kreuzes, eines Ovals oder eines Kreises auf. In einer weiteren vorteilhaften Ausgestaltung der Erfindung ist das Sensorfenster beschichtungsfrei ausgebildet. The sensor window preferably has the shape of a square, a rectangle, a rhombus, a trapezoid, a hexagon, an octagon, a cross, an oval or a circle. In a further advantageous embodiment of the invention, the sensor window is designed without a coating.

Die Sensorhalteeinrichtung kann im mittleren, oberen Bereich der Verbundscheibe angeordnet sein, wenn die Verbundscheibe als Frontscheibe eines Fahrzeugs eingebaut ist. Somit behindert die Sensorhalteeinrichtung nicht die Sicht des Fahrers eines Fahrzeugs. Ferner kann eine Abdeckung die Sensorhalteeinrichtung verdecken, so dass die Sensorhalteeinrichtung sich von innen hinter der Abdeckung befindet. Die Sensorhalteeinrichtung kann aus Kunststoff bestehen. The sensor holder can be arranged in the middle, upper area of the composite pane when the composite pane is installed as the windshield of a vehicle. The sensor holder therefore does not obstruct the view of the driver of a vehicle. Furthermore, a cover can conceal the sensor holder so that the sensor holder is located behind the cover from the inside. The sensor holder can be made of plastic.

Die Außenscheibe und die Innenscheibe sind bevorzugt aus Kalk-Natron-Glas gefertigt, was für Fensterscheiben üblich ist. Die Glasscheibe kann grundsätzlich aber auch aus anderen Glasarten (beispielsweise Borosilikatglas, Quarzglas, Aluminosilikatglas oder klaren Kunststoffen, vorzugsweise starren klaren Kunststoffen, insbesondere Polyethylen, Polypropylen, Polycarbonat, Polymethylmethacrylat, Polystyrol, Polyamid, Polyester, Polyvinylchlorid und/oder Gemische davon) gefertigt sein. Die Dicke der Außenscheibe und der Innenscheibe kann breit variieren. Bevorzugt sind die Scheiben mit einer Dicke im Bereich von 0,5 mm bis 10 mm, bevorzugt von 1 mm bis 5 mm. Die Größe der Scheiben kann breit variieren und richtet sich nach der Größe der erfindungsgemäßen Verwendung. Die Innenscheibe und gegebenenfalls die Außenscheibe weisen beispielsweise im Fahrzeugbau übliche Flächen von 200 cm2 bis zu 20 m2 auf. The outer pane and the inner pane are preferably made of soda-lime glass, which is usual for window panes. In principle, however, the glass pane can also be made of other types of glass (for example borosilicate glass, quartz glass, aluminosilicate glass or clear plastics, preferably rigid clear plastics, in particular polyethylene, polypropylene, polycarbonate, polymethyl methacrylate, polystyrene, polyamide, polyester, polyvinyl chloride and/or mixtures thereof). The thickness of the outer pane and the inner pane can vary widely. The panes are preferably in the range of 0.5 mm to 10 mm thick, preferably 1 mm to 5 mm. The size of the panes can vary widely and depends on the size of the use according to the invention. The inner pane and optionally the outer pane have areas of 200 cm 2 to 20 m 2 , which are common in vehicle construction, for example.

Die thermoplastische Zwischenschicht umfasst zumindest eine Lage eines thermoplastischen Verbindungsmaterial, welches bevorzugt Ethylenvinylacetat (EVA), Polyvinylbutyral (PVB) oder Polyurethan (PU) oder Gemische oder Copolymere oder Derivate davon enthält oder daraus besteht, besonders bevorzugt PVB. Die Zwischenschicht ist typischerweise aus zumindest einer thermoplastischen Folie ausgebildet. Die Dicke der Folie beträgt bevorzugt 0,3 mm bis 2 mm, wobei besonders die Standarddicken von 0,36 mm und 0,76 mm gebräuchlich sind. Die Zwischenschicht kann auch mehrere Lagen thermoplastischen Materials umfassen und beispielsweise aus mehreren flächig übereinander angeordneten Polymerfolien ausgebildet sein. Die Außenscheibe, die Innenscheibe und die thermoplastische Zwischenschicht können klar und farblos, aber auch getönt oder gefärbt sein. The thermoplastic intermediate layer comprises at least one layer of a thermoplastic connecting material, which preferably contains or consists of ethylene vinyl acetate (EVA), polyvinyl butyral (PVB) or polyurethane (PU) or mixtures or copolymers or derivatives thereof, particularly preferably PVB. The intermediate layer is typically formed from at least one thermoplastic film. The thickness of the film is preferably 0.3 mm to 2 mm, with the standard thicknesses of 0.36 mm and 0.76 mm being particularly common. The intermediate layer can also comprise several layers of thermoplastic material and can be made, for example, from several polymer films arranged one above the other. The outer pane, the inner pane and the thermoplastic intermediate layer can be clear and colorless, but also tinted or colored.

Die Innenscheibe und Außenscheibe werden über die Zwischenschicht miteinander laminiert, beispielsweise durch Autoklavverfahren, Vakuumsackverfahren, Vakuumringverfahren, Kalanderverfahren, Vakuumlaminatoren oder Kombinationen davon. Die Verbindung von Außenscheibe und Innenscheibe erfolgt dabei üblicherweise unter Einwirkung von Hitze, Vakuum und/oder Druck. The inner pane and outer pane are laminated together via the intermediate layer, for example using autoclave processes, vacuum bag processes, vacuum ring processes, calender processes, vacuum laminators or combinations thereof. The connection between the outer pane and the inner pane is usually carried out under the influence of heat, vacuum and/or pressure.

Die Verbundscheibe kann eine beliebige dreidimensionale Form aufweisen. Bevorzugt sind die Scheiben planar oder leicht oder stark in einer Richtung oder in mehreren Richtungen des Raumes gebogen. The composite pane can have any three-dimensional shape. Preferably, the panes are planar or slightly or strongly curved in one or more directions of space.

Die Innenscheibe und die Außenscheibe sind bevorzugt transparent, insbesondere für die Verwendung der Scheibe als Windschutzscheibe oder Rückscheibe eines Fahrzeugs oder anderen Verwendungen, bei denen eine hohe Lichttransmission erwünscht ist. Als transparent im Sinne der Erfindung wird dann eine Scheibe verstanden, die eine Transmission im sichtbaren Spektral be re ich von größer 70 % aufweist. Für Scheiben, die nicht im verkehrsrelevanten Sichtfeld des Fahrers liegen, beispielsweise für Dachscheiben, kann die Transmission aber auch viel geringer sein, beispielsweise größer als 5 %. The inner pane and the outer pane are preferably transparent, in particular for use of the pane as a windshield or rear window of a vehicle or other uses where high light transmission is desired. A pane is understood to be transparent in the sense of the invention if it has a transmission in the visible spectral range of greater than 70%. For panes that are not in the driver's traffic-relevant field of vision, for example for roof panes, the transmission can also be much lower, for example greater than 5%.

Die Verbundscheibe kann zusätzlich einen Abdeckdruck, insbesondere aus einer dunklen, bevorzugt schwarzen, Emaille umfassen. Bei dem Abdeckdruck handelt es sich insbesondere um einen peripheren, d.h. rahmenartigen, Abdeckdruck, der somit in einem umlaufenden Randbereich angeordnet ist, und/oder den Abdeckdruck, der in einem das Sensorfenster umgebenden Bereich angeordnet ist. Der periphere Abdeckdruck dient in erster Linie als UV- Schutz für den Montagekleber der Verbundscheibe. Der Abdeckdruck kann opak und vollflächig ausgebildet sein. Der Abdeckdruck kann zumindest abschnittsweise auch semitransparent, beispielsweise als Punktraster, Streifenraster oder kariertes Raster ausgebildet sein. Alternativ kann der Abdeckdruck auch einen Gradienten aufweisen, beispielsweise von einer opaken Bedeckung zu einer semitransparenten Bedeckung. Der Abdeckdruck ist auf der zweiten, zur der Zwischenschicht hingewandten Oberfläche der Außenscheibe oder auf der zweiten, von der Zwischenschicht abgewandten Oberfläche der Innenscheibe aufgebracht. Die erfindungsgemäße Verbundscheibenanordnung mit Sensorfenster dient zur Abtrennung eines Innenraums von einer äußeren Umgebung. Sie umfasst die Innenscheibe und Außenscheibe sowie die Sensorhalteeinrichtung mit Strahlungsquelle. Mit Innenscheibe wird diejenige Scheibe bezeichnet, welche dafür vorgesehen ist, in Einbaulage dem Innenraum des Fahrzeugs zugewandt zu sein. Mit Außenscheibe wird diejenige Scheibe bezeichnet, welche dafür vorgesehen ist, in Einbaulage der äußeren Umgebung des Fahrzeugs zugewandt zu sein. In Einbaulage wird die nach oben weisende Kante als Oberkante (beispielsweise in einem Kraftfahrzeug die Dachkante), die nach unten weisende Kante der Verbundscheibe (beispielsweise in einem Kraftfahrzeug die Motorkante) als Unterkante bezeichnet. Die dazwischen verlaufenden Kanten werden als Seitenkanten bezeichnet. The composite pane can additionally comprise a cover print, in particular made of a dark, preferably black, enamel. The cover print is in particular a peripheral, i.e. frame-like, cover print, which is thus arranged in a peripheral edge region, and/or the cover print that is arranged in an area surrounding the sensor window. The peripheral cover print serves primarily as UV protection for the assembly adhesive of the composite pane. The cover print can be opaque and full-surface. The cover print can also be semi-transparent, at least in sections, for example as a dot grid, stripe grid or checkered grid. Alternatively, the cover print can also have a gradient, for example from an opaque covering to a semi-transparent covering. The cover print is applied to the second surface of the outer pane facing the intermediate layer or to the second surface of the inner pane facing away from the intermediate layer. The composite pane arrangement with sensor window according to the invention serves to separate an interior from an external environment. It comprises the inner pane and outer pane as well as the sensor holder with radiation source. The inner pane refers to the pane which is intended to face the interior of the vehicle in the installed position. The outer pane refers to the pane which is intended to face the external environment of the vehicle in the installed position. In the installed position, the upward-facing edge is referred to as the upper edge (for example, the roof edge in a motor vehicle), the downward-facing edge of the composite pane (for example, the engine edge in a motor vehicle) is referred to as the lower edge. The edges running in between are referred to as side edges.

Die Verbundscheibenanordnung kann vielfältig eingesetzt werden: Im Falle einer Verbundscheibe als Fensterscheibe eines Fahrzeugs, kann sie beispielsweise eine Dachscheibe, insbesondere eine Windschutzscheibe, eine Heckscheibe oder eine Seitenscheibe sein. Besonders bevorzugt ist die Verbundscheibe eine Frontscheibe, insbesondere eine Windschutzscheibe. The composite pane arrangement can be used in a variety of ways: In the case of a composite pane as a window pane of a vehicle, it can be, for example, a roof pane, in particular a windshield, a rear window or a side window. The composite pane is particularly preferably a front pane, in particular a windshield.

Die Aufgabe wird ferner durch ein Verfahren zur Steuerung einer Heizvorrichtung eines Sensorfensters in einem Fahrzeug durch ein Heizsystem umfassend eine erfindungsgemäße Verbundscheibenanordnung gelöst, wobei die Strahlungsquelle mit mindestens einem Steuergerät (engl. Controller") und/oder einer Bordelektronik verbunden ist, wobei das Verfahren die folgenden Schritte umfasst: The object is further achieved by a method for controlling a heating device of a sensor window in a vehicle by a heating system comprising a composite pane arrangement according to the invention, wherein the radiation source is connected to at least one control device (controller) and/or on-board electronics, wherein the method comprises the following steps:

- Erfassen von Feuchtigkeit innerhalb des Sensorfensters an einer Oberfläche der Außenscheibe oder der Innenscheibe, und - Detecting moisture within the sensor window on a surface of the outer pane or the inner pane, and

- Einschalten der Strahlungsquelle im Fall dass Feuchtigkeit innerhalb des Sensorfensters vom Feuchtigkeitssensors detektiert wird, wobei die Sensorhalteinrichtung ein Basisteil umfasst, welches Mittel zur Befestigung des Sensors und der Strahlungsquelle aufweist und wobei die Strahlungsquelle derart im Basisteil angeordnet, dass die von der Strahlungsquelle emittierte Strahlung im Wesentlichen senkrecht auf die zweite Oberfläche der Innenscheibe trifft, - Switching on the radiation source in the event that moisture is detected within the sensor window by the moisture sensor, wherein the sensor holding device comprises a base part which has means for fastening the sensor and the radiation source and wherein the radiation source is arranged in the base part such that the radiation emitted by the radiation source strikes the second surface of the inner pane substantially perpendicularly,

- Abschalten der Strahlungsquelle, wenn die Feuchtigkeit entfernt wurde. - Switch off the radiation source when the moisture has been removed.

In einer anderen bevorzugten Ausgestaltung kann die Strahlungsquelle mit mindestens einem Feuchtigkeitssensor verbunden sein. Dies kann vorteilhafterweise für eine automatisierte Enteisung oder Entfernung kondensierter Feuchtigkeit eingesetzt werden. Zusätzlich kann auch präventiv die Vereisung der Verbundscheibe oder die Entstehung von Kondensat und eine damit einhergehende Sichtbehinderung vermieden werden. In another preferred embodiment, the radiation source can be connected to at least one humidity sensor. This can advantageously be used for automated de-icing or removal of condensed moisture. In addition, It is also possible to prevent the icing of the laminated pane or the formation of condensate and the resulting obstruction of visibility.

Es versteht sich von selbst, dass die Merkmale und die damit jeweils erzielbaren Vorteile, die in Bezug auf die erfindungsgemäße Verbundscheibenanordnung beschrieben wurden, auf das erfindungsgemäße Verfahren anwendbar bzw. übertragbar sind und umgekehrt. It goes without saying that the features and the advantages that can be achieved thereby, which have been described with reference to the composite pane arrangement according to the invention, are applicable or transferable to the method according to the invention and vice versa.

Die Aufgabe wird ferner durch ein computerlesbares Speichermedium gelöst, welches Instruktionen enthält, die mindestens einen Prozessor dazu veranlassen, ein erfindungsgemäßes Verfahren zu implementieren, wenn die Instruktionen durch den mindestens einen Prozessor ausgeführt werden. The object is further achieved by a computer-readable storage medium which contains instructions which cause at least one processor to implement a method according to the invention when the instructions are executed by the at least one processor.

Für das computerlesbare Speichermedium ergeben sich ähnliche Vorteile und technische Wirkungen, wie sie in Verbindung mit der Verbundscheibenanordnung und dem Verfahren beschrieben worden sind. The computer-readable storage medium offers similar advantages and technical effects as those described in connection with the composite pane arrangement and the method.

Ein weiterer Aspekt der Erfindung umfasst die Verwendung der erfindungsgemäßen Verbundscheibenanordnung in Fortbewegungsmitteln für den Verkehr auf dem Lande, in der Luft oder zu Wasser, insbesondere in Kraftfahrzeugen beispielsweise als Windschutzscheibe. A further aspect of the invention comprises the use of the composite pane arrangement according to the invention in means of transport for traffic on land, in the air or on water, in particular in motor vehicles, for example as a windshield.

Im Folgenden wird die Erfindung anhand von Figuren und Ausführungsbeispielen näher erläutert. Die Figuren sind eine schematische Darstellung und nicht maßstabsgetreu. Die Figuren schränken die Erfindung in keiner Weise ein. The invention is explained in more detail below using figures and exemplary embodiments. The figures are a schematic representation and are not to scale. The figures do not limit the invention in any way.

Es zeigen: They show:

Figur 1 eine Draufsicht auf eine erfindungsgemäße Verbundscheibenanordnung mit Sensorfenster, Figure 1 is a plan view of a composite pane arrangement according to the invention with a sensor window,

Figur 2 eine vergrößerte Darstellung des Sensorfensters aus Figur 1 , und Figur 3 eine Querschnittdarstellung entlang der Schnittlinie A-A‘ aus Figur 1. Figure 2 is an enlarged view of the sensor window from Figure 1, and Figure 3 is a cross-sectional view along the section line A-A' from Figure 1.

In Figur 1 ist eine Draufsicht auf eine Ausführungsform einer erfindungsgemäßen Verbundscheibenanordnung 100 dargestellt. Die Verbundscheibenanordnung 100 umfasst eine Verbundscheibe 10, die aus einer Außenscheibe 1 , einer thermoplastische Zwischenschicht 3 und einer Innenscheibe 2 aufgebaut ist. Die thermoplastische Zwischenschicht 3 ist zwischen der Außenscheibe 1 und der Innenscheibe 2 angeordnet. Die Verbundscheibe 10 ist beispielsweise eine Windschutzscheibe eines Personenkraftwagens. Die Außenscheibe 1 ist in Einbaulage der äußeren Umgebung zugewandt, die Innenscheibe 2 dem Fahrzeuginnenraum 12. In Einbaulage wird die nach oben weisende Kante als Oberkante O, die nach unten weisende Kante der Verbundscheibe als Unterkante U bezeichnet. Die dazwischen verlaufenden Kanten werden als Seitenkanten S bezeichnet. Figure 1 shows a plan view of an embodiment of a composite pane arrangement 100 according to the invention. The composite pane arrangement 100 comprises a composite pane 10 which is constructed from an outer pane 1, a thermoplastic intermediate layer 3 and an inner pane 2. The thermoplastic intermediate layer 3 is arranged between the outer pane 1 and the inner pane 2. The composite pane 10 is, for example, a windshield of a passenger car. In the installed position, the outer pane 1 faces the outside environment, the inner pane 2 faces the vehicle interior 12. In the installed position, the upward-facing edge is referred to as the upper edge O, and the downward-facing edge of the composite pane is referred to as the lower edge U. The edges running in between are referred to as side edges S.

Die Verbundscheibe 10 weist ein Sensorfenster 4 auf, welches in der in den Fig. 1 gezeigten Ausführungsform einer erfindungsgemäßen Verbundscheibe 10 trapezförmig ist. Die Außenscheibe 1 und die Innenscheibe 2 bestehen beispielsweise aus Kalk-Natron-Glas. Die Außenscheibe 1 weist beispielsweise eine Dicke von 2,1 mm auf, die Innenscheibe 2 weist beispielsweise eine Dicke von 1 ,6 mm auf. Die thermoplastischen Zwischenschicht 3 ist beispielsweise eine aus PVB bestehende Zwischenschicht mit akustischen dämpfenden Eigenschaften und weist eine Dicke von 0,76 mm auf. The composite pane 10 has a sensor window 4, which is trapezoidal in the embodiment of a composite pane 10 according to the invention shown in Fig. 1. The outer pane 1 and the inner pane 2 consist, for example, of soda-lime glass. The outer pane 1 has, for example, a thickness of 2.1 mm, the inner pane 2 has, for example, a thickness of 1.6 mm. The thermoplastic intermediate layer 3 is, for example, an intermediate layer made of PVB with acoustic damping properties and has a thickness of 0.76 mm.

Die Verbundscheibe 10 weist auf einer zweiten, zur Zwischenschicht hingewandte Oberfläche II der Außenscheibe 1 einen Abdeckdruck 9 auf. Der Abdeckdruck 9 ist in einem umlaufenden Randbereich und in einem das Sensorfenster 4 umgebenden Bereich angeordnet. Bei dem Abdeckdruck 9 handelt es sich beispielsweise um eine schwarze Emaille. Zur besseren Sichtbarkeit ist der Abdeckdruck 9 in der Figur 1 grau dargestellt. Alternativ oder zusätzlich kann der Abdeckdruck 9 auch auf der ersten, zur Zwischenschicht hingewandte Oberfläche III der Innenscheibe 2 aufgebracht sein. The composite pane 10 has a cover print 9 on a second surface II of the outer pane 1 facing the intermediate layer. The cover print 9 is arranged in a peripheral edge area and in an area surrounding the sensor window 4. The cover print 9 is, for example, a black enamel. For better visibility, the cover print 9 is shown in gray in Figure 1. Alternatively or additionally, the cover print 9 can also be applied to the first surface III of the inner pane 2 facing the intermediate layer.

Ferner umfasst die Verbundscheibenanordnung 100 eine Sensorhalteeinrichtung 5 (Figur 3), welche an der zweiten Oberfläche IV der Innenscheibe 2 befestigt ist und in welche mindestens ein Sensor 8 eines Fahrzeugfahrassistenzsystems angeordnet ist. Die Sensorhalteeinrichtung 5 kann als ein Kunststoffgehäuse ausgebildet sein, welches an der zweiten Oberfläche IV der Innenscheibe 2 angeklebt ist. Der Sensor 8 kann eine optische Kamera, ein Radarsystem, Ultraviolett (UV)-Sensoren, Ultraschallsensor sowie ein Light Detection and Ranging (LiDaR) Sensorsystem sein. Durch das optisch transparente Sensorfenster 4 der Verbundscheibe 10 kann der Strahlengang des Sensors 4 hindurchgehen. Weiterhin umfasst die Verbundscheibenanordnung 100 eine Heizvorrichtung 6 zum Trocknen des Sensorfensters 4, welche mindestens eine Strahlungsquelle 7 (Figur 2) im Infrarot- Wellenlängenbereich (IR- Bereich) aufweist und an der Sensorhalteeinrichtung 5 angeordnet ist. The composite pane arrangement 100 further comprises a sensor holding device 5 (Figure 3) which is fastened to the second surface IV of the inner pane 2 and in which at least one sensor 8 of a vehicle driving assistance system is arranged. The sensor holding device 5 can be designed as a plastic housing which is glued to the second surface IV of the inner pane 2. The sensor 8 can be an optical camera, a radar system, ultraviolet (UV) sensors, an ultrasound sensor and a light detection and ranging (LiDaR) sensor system. The beam path of the sensor 4 can pass through the optically transparent sensor window 4 of the composite pane 10. The composite pane arrangement 100 further comprises a heating device 6 for drying the sensor window 4, which has at least one radiation source 7 (Figure 2) in the infrared wavelength range (IR range) and is arranged on the sensor holding device 5.

Figur 2 zeigt eine vergrößerte Darstellung des Sensorfensters 4 aus Figur 1 . Der AbdeckdruckFigure 2 shows an enlarged view of the sensor window 4 from Figure 1 . The cover pressure

9 umgibt das Sensorfenster 4. Die Heizvorrichtung 6 umfasst 30 Strahlungsquellen 7. Die Strahlungsquellen 7 sind sogenannte IR-emittierende Diode (IR-LED), die Strahlung mit einer Wellenlänge (A) von 1450 nm [Nanometer], 1950 nm oder 2950 nm emittieren. Die einzelnen Strahlungsquellen 7 sind nebeneinander beabstandet, oder bandförmig (dicht aneinander) angeordnet. Werden mehrere spotförmige IR-LED nebeneinander angeordnet kann eine mehrteilige, bandförmige Strahlungsquelle ausgebildet werden. 9 surrounds the sensor window 4. The heating device 6 comprises 30 radiation sources 7. The Radiation sources 7 are so-called IR-emitting diodes (IR-LEDs) that emit radiation with a wavelength (A) of 1450 nm [nanometers], 1950 nm or 2950 nm. The individual radiation sources 7 are spaced apart from one another or arranged in a band shape (close to one another). If several spot-shaped IR-LEDs are arranged next to one another, a multi-part, band-shaped radiation source can be formed.

In Figur 3 ist ein Querschnitt durch die Verbundscheibenanordnung 100 gemäß Figur 1 entlang der Schnittlinie A-A‘ dargestellt. Die Außenscheibe 1 ist in Einbaulage der äußeren Umgebung zugewandt, die Innenscheibe 2 dem Fahrzeuginnenraum 12. Die erste, außenseitige Oberfläche der Außenscheibe 1 wird als Seite I bezeichnet. Die zweite, innenraumseitige Oberfläche der Außenscheibe 1 wird als Seite II bezeichnet. Die zweite Oberfläche II der Außenscheibe 1 ist zur Zwischenschicht hingewandte. Die erste außenseitige Oberfläche der Innenscheibe 2 wird als Seite III bezeichnet. Die zweite innenraumseitige Oberfläche der Innenscheibe 2 wird als Seite IV bezeichnet. Die zweite Oberfläche IV der Innenscheibe 2 ist von der Zwischenschicht abgewandte. Die erste Oberfläche III der Innenscheibe 2 und die zweite Oberfläche II der Außenscheibe 1 sind einander zugewandt und über die thermoplastische Zwischenschicht 3 miteinander verbunden. Die zweite Oberfläche IV der Innenscheibe 2 und die erste Oberfläche I der Außenscheibe 1 sind voneinander und von der thermoplastischen Zwischenschicht 3 abgewandt. Figure 3 shows a cross section through the composite pane arrangement 100 according to Figure 1 along the section line A-A'. In the installed position, the outer pane 1 faces the outside environment, the inner pane 2 faces the vehicle interior 12. The first, outside surface of the outer pane 1 is referred to as side I. The second, interior-side surface of the outer pane 1 is referred to as side II. The second surface II of the outer pane 1 faces the intermediate layer. The first outside surface of the inner pane 2 is referred to as side III. The second interior-side surface of the inner pane 2 is referred to as side IV. The second surface IV of the inner pane 2 faces away from the intermediate layer. The first surface III of the inner pane 2 and the second surface II of the outer pane 1 face each other and are connected to each other via the thermoplastic intermediate layer 3. The second surface IV of the inner pane 2 and the first surface I of the outer pane 1 face each other and away from the thermoplastic intermediate layer 3.

Die Sensorhalteinrichtung 5 kann ein Basisteil 5.1 umfassen, welches Mittel zur Befestigung des Sensors 8 und der Strahlungsquelle 7 aufweist. Das Basisteil 5.1 ermöglicht ein reversibles Anbringen des Sensors 8 an der Innenscheibe 2 der Verbundscheibe 10, wobei der Sensor 8 weiterhin vom Fahrzeuginnenraum aus zugänglich bleibt. Ferner umfasst das Basisteil 5.1 eine im Wesentlichen ebene Fläche, die sich vom Sensor in Richtung der zweiten Oberfläche IV der Innenscheibe, insbesondere nach unten, erstreckt. Weiterhin umfasst das Basisteil 5.1 zwei seitliche Wände, die sich ebenfalls von dem Sensor in Richtung der zweiten Oberfläche IV der Innenscheibe 2 zu den Seiten hin erstecken. Das Basisteil 5.1 umfasst die ebene, sich vom Sensor 8 in Richtung der zweiten Oberfläche IV der Innenscheibe 2 erstreckende Fläche, an der die mindestens eine Strahlungsquelle 7 angeordnet ist. Zusätzlich weist das Basisteil Öffnungen, Kerben, Rippen, Beflockungen oder Strukturen auf um einen Durchgang von Steckverbindern wie Stromkabels und/oder Signalleitungen zu ermöglichen, die für den Betrieb des Sensors und der Strahlungsquelle erforderlich sind. Eine Beflockung kann Fasern, vorzugsweise schwarze Fasern mit einer Länge von bis zu 1 mm enthalten. The sensor holding device 5 can comprise a base part 5.1, which has means for fastening the sensor 8 and the radiation source 7. The base part 5.1 enables a reversible attachment of the sensor 8 to the inner pane 2 of the composite pane 10, wherein the sensor 8 remains accessible from the vehicle interior. Furthermore, the base part 5.1 comprises a substantially flat surface that extends from the sensor in the direction of the second surface IV of the inner pane, in particular downwards. Furthermore, the base part 5.1 comprises two lateral walls that also extend from the sensor in the direction of the second surface IV of the inner pane 2 to the sides. The base part 5.1 comprises the flat surface extending from the sensor 8 in the direction of the second surface IV of the inner pane 2, on which the at least one radiation source 7 is arranged. In addition, the base part has openings, notches, ribs, flockings or structures to allow passage of connectors such as power cables and/or signal lines required for operation of the sensor and the radiation source. A flocking can contain fibers, preferably black fibers with a length of up to 1 mm.

Die Strahlungsquelle 7 ist in einer Ausnehmung in der Sensorhalteeinrichtung 5 insbesondere im Basisteil 5.1 angeordnet. Dadurch das die Strahlungsquelle 7 in der Sensorhalteeinrichtung 5 angeordnet ist, ist ein zusätzliches Verbindungslöten von Anschlusselementen auf Glas der Innenscheibe 2 überflüssig. Damit werden temperaturbedingten Spannungen im Glas oder sogar Glasbruch im Bereich des Sensorfensters verhindert. Durch eine derartige Anordnung der Strahlungsquelle 7 wird eine besonders energieeffiziente Entfernung der Feuchtigkeit erreicht. Die Strahlungsquelle 7 wird durch eine oder mehrere Zuleitungen innerhalb der Sensorhalteeinrichtung elektrisch kontaktiert. The radiation source 7 is arranged in a recess in the sensor holding device 5, in particular in the base part 5.1. Because the radiation source 7 in the sensor holding device 5, additional soldering of connecting elements to the glass of the inner pane 2 is unnecessary. This prevents temperature-related stresses in the glass or even glass breakage in the area of the sensor window. By arranging the radiation source 7 in this way, a particularly energy-efficient removal of moisture is achieved. The radiation source 7 is electrically contacted by one or more supply lines within the sensor holding device.

Die Heizvorrichtung 6 kann mehrere Strahlungsquellen 7 aufweisen. Dadurch kann die Enteisung oder eine Trocknung der Verbundscheibe 10 im Bereich des Sensorfensters 4 besonders schnell erfolgen. Die Strahlungsquellen 7 können bandförmig oder spotförmig ausgebildet sein. Die einzelnen Strahlungsquellen 7 sind derart im Basisteil 5.1 angeordnet, dass die von der jeweiligen Strahlungsquelle 7 emittierte Strahlung im Wesentlichen senkrecht auf die zweite Oberfläche IV der Innenscheibe 2 trifft. Bei einer derartigen Anordnung ist die Energieeffizienz besonderes groß, so dass die Enteisung und Verdampfung von Wasser besonders schnell einsetzt. The heating device 6 can have several radiation sources 7. This allows the defrosting or drying of the composite pane 10 in the area of the sensor window 4 to take place particularly quickly. The radiation sources 7 can be designed in the shape of a band or a spot. The individual radiation sources 7 are arranged in the base part 5.1 in such a way that the radiation emitted by the respective radiation source 7 strikes the second surface IV of the inner pane 2 essentially perpendicularly. With such an arrangement, the energy efficiency is particularly high, so that the defrosting and evaporation of water begins particularly quickly.

Im Gegensatz zur vereinfachten Darstellung in der Figur 3 sind reale Windschutzscheibe nicht plan, sondern gebogen ausgebildet. Daraus kann eine ortsabhängige Ausrichtung der Strahlungsquellen 7 resultieren. Die Verbundscheibe 10 ist eine Windschutzscheibe, die mit einem Einbauwinkel im Fahrzeug eingebaut ist. Außerhalb des Sensorfensters 4 kann die Verbundscheibe 10 eine elektrisch leitfähige, transparente Beschichtung aufweisen, wobei die elektrisch leitfähige, transparente Beschichtung, insbesondere im Wesentlich vollflächig, außerhalb des Kamerafensters an der ersten Oberfläche III der Innenscheibe 2 angeordnet sein kann. In contrast to the simplified representation in Figure 3, real windshields are not flat, but curved. This can result in a location-dependent alignment of the radiation sources 7. The composite pane 10 is a windshield that is installed in the vehicle at an installation angle. Outside the sensor window 4, the composite pane 10 can have an electrically conductive, transparent coating, wherein the electrically conductive, transparent coating can be arranged, in particular essentially over the entire surface, outside the camera window on the first surface III of the inner pane 2.

Überraschend hat sich gezeigt, dass eine solche erfindungsgemäße Verbundscheibenanordnung 100 gegenüber den bisher bekannten Windschutzscheiben deutlich schnellere Enteisung und Trocknung des Sensorfensters erzielt. Bezugszeichenliste: Surprisingly, it has been shown that such a composite pane arrangement 100 according to the invention achieves significantly faster defrosting and drying of the sensor window compared to previously known windshields. List of reference symbols:

1 Innenscheibe 1 inner pane

2 Außenscheibe 2 outer panes

3 Zwischenschicht 3 intermediate layer

4 Sensorfenster 4 sensor windows

5 Sensorhalteeinrichtung 5 sensor holder

5.1 Basisteil der Sensorhalteeinrichtung 5.1 Base part of the sensor holder

6 Heizvorrichtung 6 heating device

7 Strahlungsquelle 7 radiation source

8 Sensor (Kamera) 8 Sensor (camera)

9 Abdeckdruck 9 cover print

10 Verbundscheibe 10 composite panes

12 Fahrzeuginnenraum 12 vehicle interior

100 Verbundscheibenanordnung 100 composite pane arrangement

(O) Oberkante der Verbundscheibe (O) Upper edge of the composite pane

(U) Unterkante der Verbundscheibe (U) Lower edge of the composite pane

(S) Seitenkante der Verbundscheibe (S) Side edge of the composite pane

(I) erste, von der Zwischenschicht abgewandte Oberfläche der Außenscheibe(I) first surface of the outer pane facing away from the intermediate layer

(II) zweite, zur Zwischenschicht hingewandte Oberfläche der Außenscheibe(II) second surface of the outer pane facing the intermediate layer

(III) erste, zur Zwischenschicht hingewandte Oberfläche der Innenscheibe(III) first surface of the inner pane facing the intermediate layer

(IV) zweite, von der Zwischenschicht abgewandte Oberfläche der Innenscheibe (IV) second surface of the inner pane facing away from the intermediate layer

Claims

Patentansprüche patent claims 1 . Verbundscheibenanordnung (100) mit Sensorfenster (4) mindestens umfassend: 1 . Composite pane arrangement (100) with sensor window (4) comprising at least: • eine Außenscheibe (1) und eine Innenscheibe (2), die über mindestens eine thermoplastische Zwischenschicht (3) miteinander flächig zu einer Verbundscheibe (10) verbunden sind, wobei die Außenscheibe (1) eine erste, von der Zwischenschicht (3) abgewandte Oberfläche (I) und eine zweite, zur der Zwischenschicht hingewandte Oberfläche (II) umfasst und die Innescheibe (2) eine erste, zur Zwischenschicht hingewandte Oberfläche (III) sowie eine zweite, von der Zwischenschicht abgewandte Oberfläche (IV) umfasst, • an outer pane (1) and an inner pane (2) which are connected to one another via at least one thermoplastic intermediate layer (3) to form a composite pane (10), wherein the outer pane (1) comprises a first surface (I) facing away from the intermediate layer (3) and a second surface (II) facing the intermediate layer and the inner pane (2) comprises a first surface (III) facing the intermediate layer and a second surface (IV) facing away from the intermediate layer, • eine Sensorhalteeinrichtung (5), welche an der zweiten Oberfläche (IV) der Innenscheibe (2) befestigt ist und in welche mindestens ein Sensor eines Fahrzeugfahrassistenzsystems angeordnet ist, • a sensor holding device (5) which is attached to the second surface (IV) of the inner pane (2) and in which at least one sensor of a vehicle driving assistance system is arranged, • mindestens ein optisch transparentes Sensorfenster (2) der Verbundscheibe (10), durch das der Strahlengang des Sensors (3) hindurchgeht, und • at least one optically transparent sensor window (2) of the composite pane (10) through which the beam path of the sensor (3) passes, and • eine Heizvorrichtung (6), wobei die Heizvorrichtung (6) mindestens eine Strahlungsquelle (7) im Infrarot- Wellenlängenbereich aufweist und an der Sensorhalteeinrichtung (5) angeordnet ist, wobei die Strahlungsquelle (7) in einer Ausnehmung in der Sensorhalteeinrichtung (5) angeordnet ist. • a heating device (6), wherein the heating device (6) has at least one radiation source (7) in the infrared wavelength range and is arranged on the sensor holding device (5), wherein the radiation source (7) is arranged in a recess in the sensor holding device (5). 2. Verbundscheibenanordnung (100) nach Anspruch 1 , wobei die Heizvorrichtung (6) mindestens eine Strahlungsquelle (7) im IR- Wellenlängenbereich von 0,8 pm bis 3,5 pm umfasst. 2. Composite pane arrangement (100) according to claim 1, wherein the heating device (6) comprises at least one radiation source (7) in the IR wavelength range from 0.8 pm to 3.5 pm. 3. Verbundscheibenanordnung (100) nach Anspruch 1 oder 2, wobei die Strahlungsquelle (7) mindestens eine IR-LED umfasst. 3. Composite pane arrangement (100) according to claim 1 or 2, wherein the radiation source (7) comprises at least one IR LED. 4. Verbundscheibenanordnung (100) nach einem der Ansprüche 1 bis 3, wobei die Heizvorrichtung eine Strahlungsquelle (7) im IR-Wellenlängenbereich von 1400 nm bis 3000 nm, bevorzugt von 1950 nm bis 2950 nm umfasst. 4. Composite pane arrangement (100) according to one of claims 1 to 3, wherein the heating device comprises a radiation source (7) in the IR wavelength range from 1400 nm to 3000 nm, preferably from 1950 nm to 2950 nm. 5. Verbundscheibenanordnung (100) nach einem der Ansprüche 1 bis 4, wobei die Strahlungsquelle (7) derart angeordnet ist, dass eine von der Strahlungsquelle (7) emittierte Strahlung senkrecht auf die zweite Oberfläche (IV) der Innenscheibe (2) auftrifft. 5. Composite pane arrangement (100) according to one of claims 1 to 4, wherein the radiation source (7) is arranged such that radiation emitted by the radiation source (7) impinges perpendicularly on the second surface (IV) of the inner pane (2). 6. Verbundscheibenanordnung (100) nach einem der Ansprüche 1 bis 5, wobei die Heizvorrichtung (6) mehrere, insbesondere zwei bis 40 Strahlungsquellen aufweist. 6. Composite pane arrangement (100) according to one of claims 1 to 5, wherein the heating device (6) has several, in particular two to 40 radiation sources. 7. Verbundscheibenanordnung (100) nach einem der Ansprüche 1 bis 6, wobei die Strahlungsquelle (7) bandförmig oder spotförmig ausgebildet ist. 7. Composite pane arrangement (100) according to one of claims 1 to 6, wherein the radiation source (7) is band-shaped or spot-shaped. 8. Verbundscheibenanordnung (100) nach Anspruch 6 oder 7, wobei die Sensorhalteinrichtung (5) ein Basisteil (5.1) umfasst, welches Mittel zur Befestigung des Sensors (8) und der Strahlungsquelle (7) aufweist. 8. Composite pane arrangement (100) according to claim 6 or 7, wherein the sensor holding device (5) comprises a base part (5.1) which has means for fastening the sensor (8) and the radiation source (7). 9. Verbundscheibenanordnung (100) nach Anspruch 8, wobei das Basisteil (8) eine ebene, sich vom Sensor (8) in Richtung der zweiten Oberfläche (IV) der Innenscheibe (2) erstreckende Fläche umfasst, an der die Strahlungsquelle (7) angeordnet ist. 9. Composite pane arrangement (100) according to claim 8, wherein the base part (8) comprises a flat surface extending from the sensor (8) in the direction of the second surface (IV) of the inner pane (2), on which the radiation source (7) is arranged. 10. Verbundscheibenanordnung (100) nach einem der Ansprüche 1 bis 9, wobei als Sensor (3) eine Kamera, ein Radarsensor oder ein LiDaR-Sensorsystem oder eine Kombination aus diesen vorgesehen ist. 10. Composite pane arrangement (100) according to one of claims 1 to 9, wherein a camera, a radar sensor or a LiDaR sensor system or a combination of these is provided as the sensor (3). 11. Verbundscheibenanordnung (100) nach einem der Ansprüche 1 bis 10, wobei die Sensorhalteeinrichtung (5) im mittleren, oberen Bereich der Verbundscheibe (10) angeordnet ist, wenn die Verbundscheibe (10) als Frontscheibe eines Fahrzeugs eingebaut ist. 11. Composite pane arrangement (100) according to one of claims 1 to 10, wherein the sensor holding device (5) is arranged in the middle, upper region of the composite pane (10) when the composite pane (10) is installed as a windshield of a vehicle. 12. Verbundscheibenanordnung (100) nach einem der Ansprüche 1 bis 11 , wobei die Verbundscheibe (10) eine Frontscheibe ist. 12. Composite pane arrangement (100) according to one of claims 1 to 11, wherein the composite pane (10) is a front pane. 13. Verfahren zur Steuerung einer Heizvorrichtung (6) in einem Fahrzeug durch ein Heizsystem umfassend eine Verbundscheibenanordnung (100) nach einem der Ansprüche 1 bis 12, wobei die Strahlungsquelle (7) mit mindestens einem Steuergerät und/oder einer Bordelektronik des Fahrzeugs verbunden ist, wobei das Verfahren die folgenden Schritte umfasst: 13. Method for controlling a heating device (6) in a vehicle by a heating system comprising a composite pane arrangement (100) according to one of claims 1 to 12, wherein the radiation source (7) is connected to at least one control device and/or on-board electronics of the vehicle, the method comprising the following steps: - Erfassen von Feuchtigkeit innerhalb des Sensorfensters (4) an einer Oberfläche der Außenscheibe (1) oder der Innenscheibe (2) mittels eines mit dem Steuergerät und/oder Bordelektronik verbundenen Feuchtigkeitssensors,- detecting moisture within the sensor window (4) on a surface of the outer pane (1) or the inner pane (2) by means of a moisture sensor connected to the control unit and/or on-board electronics, - Einschalten der Strahlungsquelle (7) im Fall dass Feuchtigkeit innerhalb des Sensorfensters vom Feuchtigkeitssensors detektiert wird, wobei die Sensorhalteinrichtung (5) ein Basisteil (5.1) umfasst, welches Mittel zur Befestigung des Sensors (8) und der Strahlungsquelle (7) aufweist und wobei die Strahlungsquelle (7) derart im Basisteil (5.1) angeordnet, dass die von der Strahlungsquelle (7) emittierte Strahlung im Wesentlichen senkrecht auf die zweite Oberfläche (IV) der Innenscheibe (2) trifft, - switching on the radiation source (7) in the event that moisture is detected within the sensor window by the moisture sensor, wherein the sensor holding device (5) comprises a base part (5.1) which has means for fastening the sensor (8) and the radiation source (7) and wherein the radiation source (7) is arranged in the base part (5.1) such that the radiation emitted by the radiation source (7) strikes the second surface (IV) of the inner pane (2) substantially perpendicularly, - Abschalten der Strahlungsquelle (7), wenn die Feuchtigkeit entfernt wurde. - Switch off the radiation source (7) when the moisture has been removed. 14. Computerlesbares Speichermedium, welches Instruktionen enthält, die mindestens einen Prozessor dazu veranlassen, ein Verfahren nach Anspruch 13 zu implementieren, wenn die Instruktionen durch den mindestens einen Prozessor ausgeführt werden. 14. A computer-readable storage medium containing instructions that cause at least one processor to implement a method according to claim 13 when the instructions are executed by the at least one processor.
PCT/EP2024/070417 2023-08-10 2024-07-18 Laminated pane assembly having a sensor window Pending WO2025031757A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP23190845.0 2023-08-10
EP23190845 2023-08-10

Publications (1)

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WO2025031757A1 true WO2025031757A1 (en) 2025-02-13

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1605729A2 (en) 2004-04-15 2005-12-14 Pilkington Plc Electrically heated window
US20110067726A1 (en) * 2009-09-18 2011-03-24 Cochran Don W Narrowband de-icing and ice release system and method
WO2013131700A1 (en) 2012-03-05 2013-09-12 Saint-Gobain Glass France Pane arrangement having an electrically heatable baffle plate
WO2022223198A1 (en) 2021-04-22 2022-10-27 Saint-Gobain Glass France Composite pane for a heads-up display, comprising a heatable sensor region

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1605729A2 (en) 2004-04-15 2005-12-14 Pilkington Plc Electrically heated window
US20110067726A1 (en) * 2009-09-18 2011-03-24 Cochran Don W Narrowband de-icing and ice release system and method
WO2013131700A1 (en) 2012-03-05 2013-09-12 Saint-Gobain Glass France Pane arrangement having an electrically heatable baffle plate
WO2022223198A1 (en) 2021-04-22 2022-10-27 Saint-Gobain Glass France Composite pane for a heads-up display, comprising a heatable sensor region

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