Laminated glass and vehicles
The laminated glass design with an infrared-blocking film and transmitting film addresses the issue of lidar signal blocking and heat insulation in vehicle windows, ensuring high transmittance and insulation efficiency for lidar signals and reducing heat buildup.
Patent Information
- Application Number
- JP2026510116
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-08-30
- Filing Date
- 2024-08-30
- Publication Date
- 2026-08-26
AI Technical Summary
Existing vehicle window glass has high blocking rates for infrared rays, which hinders the transmission of lidar signals in the 905nm and 1550nm wavelength bands, necessary for high-precision measurement, while also failing to meet heat insulation needs.
Laminated glass design with an adhesive layer comprising an infrared-blocking film and an infrared-transmitting film, where the infrared-blocking film has openings filled with the transmitting film, ensuring high transmittance for lidar signals and low heat absorption, while maintaining heat insulation properties.
The laminated glass achieves high transmittance for lidar signals in the 780nm to 2500nm wavelength range and effective heat insulation, supporting the normal operation of in-vehicle laser radar with improved detection accuracy and reduced heat buildup.
Smart Images

Figure 2026528976000001_ABST
Abstract
Description
Technical Field
[0001] Cross - reference to related applications This application claims the priority of Chinese Patent Application No. 202311107322.1, filed on August 30, 2023, with the invention title of "Laminated Glass and Vehicle", and all its contents are incorporated herein by reference.
[0002] This application belongs to the technical field of glass, specifically related to laminated glass and vehicles.
Background Art
[0003] The application of glass is becoming increasingly widespread, and users' needs for glass are also gradually increasing. In vehicles equipped with lidar inside the vehicle, the lidar signal needs to be transmitted through the vehicle window glass. In order to ensure the normal operation of the lidar and meet the needs of high - precision measurement, the vehicle window glass is required to have a high transmittance for signals in wavelength bands such as the 905nm wavelength or 1550nm wavelength of the lidar. Currently, the used vehicle window glass has a high blocking rate for infrared rays in the range of 780nm to 2500nm to meet the heat insulation needs, and cannot meet the usage needs of the lidar.
Summary of the Invention
[0004] In a first aspect, this application provides laminated glass. The laminated glass includes a first glass, a second glass, and an adhesive layer that are sequentially laminated. The first glass and the second glass are connected via the adhesive layer. The adhesive layer includes an infrared - blocking film and an infrared - transmitting film. The infrared - blocking film is provided with a first opening. The infrared - transmitting film is provided at least partially within the first opening. The laminated glass further includes a heat - insulating part and a wave - transmitting part. The heat - insulating part is the infrared - blocking film MuThe wave-transmitting portion corresponds to the area where the infrared-transmitting film is installed. The heat-insulating portion has a transmittance of 45% or less for light in the 780nm to 2500nm wavelength range. The heat-insulating portion has a visible light transmittance of 70% or more. The wave-transmitting portion has a transmittance of 70% or more for light in the 780nm to 2500nm wavelength range.
[0005] The heat-insulating portion has a transmittance of 35% or less for light in the 850nm to 950nm wavelength range. The heat-insulating portion has a transmittance of 10% or less for light in the 1500nm to 1600nm wavelength range.
[0006] The wave-transmitting portion has a transmittance of 75% or more for light in the 850nm to 950nm wavelength range. The wave-transmitting portion has a transmittance of 75% or more for light in the 1500nm to 1600nm wavelength range.
[0007] The first glass has a transmittance of 75% or more for light in the 780nm to 2500nm wavelength range. The second glass also has a transmittance of 75% or more for light in the 780nm to 2500nm wavelength range.
[0008] Infrared blocking film Mu is Includes an infrared absorbing film. The infrared absorbing film absorbs light in the wavelength range of 780 nm to 2500 nm.
[0009] The thickness of the infrared absorbing film is 0.3 mm to 2.3 mm.
[0010] Infrared blocking film includes infrared reflective film. Infrared reflective film reflects light in the wavelength range of 780nm to 2500nm.
[0011] The thickness of the infrared reflective film is 0.02 mm to 0.08 mm.
[0012] The adhesive layer further comprises a first adhesive layer and / or a second adhesive layer. The first adhesive layer is installed between the first glass and the infrared reflective film. The second adhesive layer is installed between the second glass and the infrared reflective film.
[0013] The first adhesive layer has a second opening. The infrared-transmitting film is also filled into the second opening. Alternatively, the second adhesive layer has a third opening. The infrared-transmitting film is also filled into the third opening. Alternatively, the first adhesive layer has a second opening, and the second adhesive layer has a third opening. Mu is The second and third openings are also filled.
[0014] The thickness of the first adhesive layer is 0.3 to 2.3 mm. The thickness of the second adhesive layer is 0.3 to 2.3 mm.
[0015] The first adhesive layer has a transmittance of 70% or more for light in the 780nm to 2500nm wavelength range. The second adhesive layer has a transmittance of 70% or more for light in the 780nm to 2500nm wavelength range.
[0016] The infrared-transmitting film contains at least one of the following: polyvinyl butyral (PVB), ethylene vinyl acetate (EVA), polycarbonate (PC), polyvinyl chloride (PVC), polyacrylate (PA), polymethyl methacrylate (PMMA), polyurethane (PUR), and ionic polymer film (SGP).
[0017] In a second embodiment, the present application further provides a vehicle comprising a vehicle body, laminated glass as in the first embodiment, and a laser radar. The laminated glass is mounted on the vehicle body. The laser radar is mounted inside the vehicle body. The laser radar transmits and receives electromagnetic wave signals through the wave-transmitting portion of the laminated glass. The wavelength of the electromagnetic waves is 780 nm to 2500 nm.
[0018] In this application, the first glass and the second glass in between By installing both an insulating layer and a wave-transmitting layer, the laminated glass will have a high energy blocking rate for light in the 780nm to 2500nm wavelength range and will meet the light transmittance requirements for laser radar in the 780nm to 2500nm wavelength range. [Brief explanation of the drawing]
[0019] To more clearly explain the technical solution of this application, the drawings necessary for the description of the embodiments are briefly introduced below. Obviously, the drawings described are only some embodiments of this application, and those skilled in the art can obtain other drawings from these drawings without creative efforts. [Figure 1] FIG. 1 is a schematic diagram showing the structure of the laminated glass according to this application. [Figure 2] FIG. 2 is a schematic diagram showing the cross-sectional layer structure of the laminated glass along the A-A line in FIG. 1 in one embodiment. [Figure 3] FIG. 3 is a partial enlarged view of the X-indicated area in FIG. 2 in one embodiment. [Figure 4] FIG. 4 is a partial enlarged view of the X-indicated area in FIG. 2 in another embodiment. [Figure 5] FIG. 5 is a schematic diagram showing the cross-sectional layer structure of the laminated glass along the A-A line in FIG. 1 in one embodiment. [Figure 6] FIG. 6 is a schematic diagram showing the relationship between the wavelength and the transmittance of a polyvinyl butyral (PVB) film and an infrared absorption film (also called a Solar Control Film). [Figure 7] FIG. 7 is a schematic diagram showing the cross-sectional layer structure of the laminated glass along the A-A line in FIG. 1 in another embodiment. [Figure 8] FIG. 8 is a schematic diagram showing the relationship between the wavelength and the transmittance of a PVB film, a polyethylene terephthalate (PET) film, and an infrared absorption film. [Figure 9] FIG. 9 is a schematic diagram showing the cross-sectional layer structure of the laminated glass along the A-A line in FIG. 1 in another embodiment. [Figure 10] FIG. 10 is a schematic diagram showing the cross-sectional structure of an infrared reflection film in one embodiment. [Figure 11] FIG. 11 is a schematic diagram showing the cross-sectional structure of an infrared reflection film in another embodiment. [Figure 12]Figure 12 is a schematic diagram showing a cross-sectional layered structure of laminated glass along line AA in Figure 1 in another embodiment. [Figure 13] Figure 13 is a partially enlarged view of the Y-indication region in Figure 12 in one embodiment. [Figure 14] Figure 14 is a schematic diagram showing the relationship between the angle of incidence and transmittance for PVB film and ethylene vinyl acetate (EVA) film. [Figure 15] Figure 15 is a partially enlarged view of the Y-indication region in Figure 12, in another embodiment. [Figure 16] Figure 16 is a partially enlarged view of the Y-indication region in Figure 12, in another embodiment. [Figure 17] Figure 17 is a partially enlarged view of the Y-indication region in Figure 12, in another embodiment. [Figure 18] Figure 18 is a schematic diagram showing the structure of the vehicle relating to this application. [Modes for carrying out the invention]
[0020] To enable those skilled in the art to better understand the technical concept of this application, the technical concept of the embodiments of this application will be described clearly and comprehensively below with reference to the drawings of the embodiments of this application. Clearly, the embodiments described are only some, and not all, embodiments of this application. All other embodiments that a person skilled in the art can obtain without creative effort based on the embodiments of this application are all within the scope of protection of this application.
[0021] In the specification, claims, and drawings of this application, terms such as “first,” “second,” etc., are used not to describe a specific sequence, but to distinguish different subjects. Furthermore, terms such as “includes,” “has,” or any other delimiting term are intended to cover, without excluding, other components. For example, a process, method, system, product, or device comprising a series of steps or units may, but is not limited to, further include other steps or units not listed, or may, selectively, further include other steps or units specific to those processes, methods, systems, products, or devices.
[0022] The technical proposal in the embodiments of this application will be described below with reference to the drawings.
[0023] For the sake of clarity, in the embodiments of this application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments.
[0024] Referring to Figures 1 to 3, this application provides laminated glass 1. Laminated glass 1 includes a first glass 10, a second glass 20, and an adhesive layer 30, which are sequentially laminated. The first glass 10 and the second glass 20 are connected via the adhesive layer 30. The adhesive layer 30 includes an infrared blocking film 33 and an infrared transmitting film 34. The infrared blocking film 33 is provided with a first opening 331. At least a portion of the first opening 331 is provided with the infrared transmitting film 34. Laminated glass 1 further includes a heat insulating portion 31 and a wave transmitting portion 32. The heat insulating portion 31 corresponds to the area where the infrared blocking film 33 is installed, and the wave transmitting portion 32 corresponds to the area where the infrared transmitting film 34 is installed. The heat insulating portion 31 has a transmittance of 45% or less for light in the 780 nm to 2500 nm wavelength band. The heat insulating portion 31 has a visible light transmittance of 70% or more. The wave-transmitting section 32 has a transmittance of 70% or more for light in the wavelength range of 780 nm to 2500 nm.
[0025] The laminated glass 1 according to this application can be used as glass or windows in vehicles, buildings, etc., and has superior infrared reflectivity. As a result, the laminated glass 1 having the adhesive layer 30 has superior heat insulation properties. For example, the laminated glass 1 can be installed in a vehicle. In one embodiment, the laminated glass 1 is installed as the front windshield of a vehicle. In another embodiment, the laminated glass 1 is installed in a vehicle as the rear windshield, sunroof glass, or side windshield. In this application, an example in which the laminated glass 1 is installed as the front windshield of a vehicle is given.
[0026] Specifically, the first glass 10 has a first surface 10a facing outwards from the vehicle 80 and a second surface 10b facing inwards from the vehicle 80. The second glass 20 has a third surface 20a facing outwards from the vehicle 80 and a fourth surface 20b facing inwards from the vehicle 80. The first glass 10 and the second glass 20 undergo a high-temperature bending and forming treatment at at least 500°C. The thickness of the first glass 10 and the second glass 20 is usually set to 1.6 to 5.0 mm, for example, 1.6 mm, 1.8 mm, 2.1 mm, 2.3 mm, 3.2 mm, 3.5 mm, 4.0 mm, 4.5 mm, 5.0 mm, etc. Preferably, their thicknesses are 1.8 mm, 2.1 mm, and 2.3 mm, and more preferably, their thicknesses are 1.8 mm and 2.1 mm. With respect to light transmittance (Lt), the first glass 10 and the second glass 20 may be ordinary transparent glass with a transmittance of 75% to 85% for light in the 800nm to 2100nm wavelength band, more preferably ordinary transparent glass with a transmittance of 85% to 95% for light in the 800nm to 2100nm infrared wavelength band, or high aluminum glass with a transmittance of 86% to 96% for light in the 780nm to 2500nm infrared wavelength band, or high boron glass with a transmittance of 86.5% to 96.5% for light in the 780nm to 2500nm infrared wavelength band. Preferably, the first glass 10 has a transmittance of 75% or more for light in the 780nm to 2500nm wavelength band, and the second glass 20 has a transmittance of 75% or more for light in the 780nm to 2500nm wavelength band.
[0027] Referring to Figures 2 and 3, the adhesive layer 30 is used to bond the first glass 10 and the second glass 20, thereby giving the laminated glass 1 a high level of stability. The region formed by sequentially laminating the first glass 10, the infrared blocking film 33, and the second glass 20 is the heat insulating portion 31. The region formed by sequentially laminating the first glass 10, the infrared transmitting film 34, and the second glass 20 is the wave transmitting portion 32. The heat insulating portion 31 is configured to block heat from the outside of the vehicle 80, and the wave transmitting portion 32 is configured to transmit light in the 780 nm to 2500 nm wavelength range.
[0028] To make it easier to understand, the thermal insulation effect of the thermal insulation section 31 depends on the material selection of the infrared blocking film 33. The infrared blocking film 33 is an infrared absorbing film 311. (See Figure 5) or infrared reflective film 312 (See Figure 7) That's fine.
[0029] The heat insulating portion 31 has a visible light transmittance of 70% or more. Preferably, the heat insulating portion 31 has a visible light transmittance of 80% or more. This ensures that the laminated glass 1 has high transparency and improves the user's field of view.
[0030] To understand this, the light transmission effect of the wave-transmitting section 32 depends on the material selection of the infrared-transmitting film 34. The infrared-transmitting film 34 can be selected from materials such as polycarbonate (PC), polyvinyl chloride (PVC), polyvinyl butyral (PVB), ethylene vinyl acetate (EVA), polyacrylate (PA), polymethyl methacrylate (PMMA), polyurethane (PUR), ionic polymer film (SGP), polyethylene-octene copolymer (POE) elastomer, cyclic olefin polymer, thermoplastic polyurethane elastomer, or cellulose triacetate. As a result, the wave-transmitting section 32 has a transmittance of 70% or more for light in the 780nm to 2500nm wavelength band, and therefore the wave-transmitting section can be used for transmitting optical signals in the 780nm to 2500nm wavelength band.
[0031] In this application, by installing a heat insulating portion 31 and a wave-transmitting portion 32 in the adhesive layer 30 between the first glass 10 and the second glass 20, the laminated glass 1 has a high shielding rate for light in the 780nm to 2500nm wavelength range and satisfies the need for transmittance for light in the 780nm to 2500nm wavelength range.
[0032] Referring to Figure 4, in one embodiment, the infrared blocking film 33 is provided with a first opening 331. The The first opening 331 penetrates the infrared-blocking film 33. The shape of the first opening 331 may be rectangular, polygonal, elliptical, or the like, and is not limited to these. To make it clear, in a specific area within the heat-insulating section 31, a portion of the infrared-blocking film 33 is removed to form the first opening 331, and the infrared-transmitting film 34 is not installed. As a result, the portion between the first glass 10 and the second glass 20, i.e., the portion between the second surface 10b and the third surface 20a, becomes a hollowed-out structure, forming a wave-transmitting section 32. The wave-transmitting section 32 has a transmittance of 85% or more for light in the 780nm to 2500nm wavelength band. Preferably, the wave-transmitting section 32 has a transmittance of 86.5% to 96.5% for light in the 780nm to 2500nm infrared wavelength band, and as a result, the interior of the vehicle 80 can transmit and receive light in the infrared wavelength band through the wave-transmitting section 32, ensuring the normal operation and high detection accuracy of the in-vehicle laser radar.
[0033] Continuing to refer to Figure 3, in another embodiment, the infrared-blocking film 33 is provided with a first opening 331. The infrared-transmitting film 34 is installed within the first opening 331. The first opening 331 penetrates the infrared-blocking film 33. The shape of the first opening 331 may be, but is not limited to, a rectangle, polygon, or ellipse. To understand this, in a specific area within the heat-insulating section 31, a portion of the infrared-blocking film 33 is removed, and then the material of the infrared-transmitting film 34 is filled into this area to form a wave-transmitting section 32. The wave-transmitting section 32 has a transmittance of 75% or more for light in the 780nm to 2500nm wavelength band, and as a result, the interior of the vehicle 80 can transmit and receive light in the infrared wavelength band through the wave-transmitting section 32, which can ensure the normal operation and high detection accuracy of the in-vehicle laser radar. The first opening 331 is filled with an infrared-transmitting film 34 having the same shape as the first opening 331, or, in the glass lamination process, a portion of the infrared-transmitting film 34 laminated with the infrared-blocking film 33 is pressed into the first opening 331 to fill it, thereby installing the infrared-transmitting film 34 in the first opening 331.
[0034] In some specific embodiments, when the adhesive layer 30 is a single-layer structure, the infrared-blocking film 33 is provided with a first opening 331, and the infrared-transmitting film 34 is provided within the first opening 331, with the area of the infrared-transmitting film 34 being equal to or slightly larger than the area of the first opening 331.
[0035] If the adhesive layer 30 has a two-layer structure, that is, if the adhesive layer 30 includes one infrared-blocking film 33 and one infrared-transmitting film 34, then the infrared-blocking film 33 is provided with a first opening 331, and the area of the infrared-transmitting film 34 is equal to the area of the infrared-blocking film 33. After the laminated glass 1 is laminated, a pre-pressurization / high-pressure process is performed. The portion of the infrared-transmitting film 34 corresponding to the first opening 331 flows into the first opening 331 so that the infrared-transmitting film 34 is provided in at least a portion of the first opening 331.
[0036] If the adhesive layer 30 has a three-layer structure, that is, if the adhesive layer 30 includes one infrared-blocking film 33 and two infrared-transmitting films 34, and the three layers are laminated in the order of infrared-transmitting film 34, infrared-blocking film 33, and infrared-transmitting film 34, then the infrared-blocking film 33 is provided with a first opening 331, and the area of the infrared-transmitting film 34 is equal to the area of the infrared-blocking film 33. After the laminated glass 1 is laminated, a pre-pressurization / high-pressure process is performed. The portion of the infrared-transmitting film 34 corresponding to the first opening 331 flows into the first opening 331 so that the infrared-transmitting film 34 is provided in at least a portion of the first opening 331.
[0037] In one embodiment, the insulating portion has a transmittance of 35% or less for light in the 850nm to 950nm wavelength band. The insulating portion has a transmittance of 10% or less for light in the 1500nm to 1600nm wavelength band. Preferably, the insulating portion may have a transmittance of 30%, 25%, 20%, or even 15% for light in the 850nm to 950nm wavelength band. The insulating portion may have a transmittance of 8%, 6%, 4%, or even 2% for light in the 1500nm to 1600nm wavelength band. The wave-transmitting portion has a transmittance of 75% or more for light in the 850nm to 950nm wavelength band. Preferably, the wave-transmitting portion may have a transmittance of 80%, 85%, 90%, or even 95% for light in the 850nm to 950nm wavelength band. The wave-transmitting portion may have a transmittance of 80%, 85%, 90%, or even 95% for light in the 1500nm to 1600nm wavelength range.
[0038] Figure 5 Figure 7 and figure 9 Referring to the infrared blocking film 33, the infrared absorbing film 311 and the infrared reflective film 312 It includes at least one of the following. The infrared absorbing film 311 absorbs light in the 780nm to 2500nm wavelength range, and the infrared reflective film 312 It reflects light in the 780nm to 2500nm wavelength range. The heat insulating section 31 consists of an infrared absorbing film 311 and an infrared reflective film.312 If it includes, infrared absorbing film 311 and infrared reflective film 312 This is an infrared reflective film that is laminated between the first glass 10 and the second glass 20. 312 It is installed closer to the first glass 10 than the infrared absorbing film 311.
[0039] Figure 5 and Referring to Figure 6, in one embodiment, the infrared blocking film 33 includes an infrared absorbing film 311. The infrared absorbing film 311 has an absorption rate of 75% or more for light in the 780 nm to 2500 nm wavelength band. The thickness of the infrared absorbing film is 0.3 mm to 2.3 mm, for example, 0.38 mm, 0.51 mm, 0.76 mm, 0.81 mm, etc. Preferably, the thickness of the infrared absorbing film is 0.38 mm or 0.76 mm. More preferably, the thickness of the infrared absorbing film is 0.76 mm.
[0040] The infrared absorbing film 311 may be a thermoplastic resin film containing heat insulating particles, such as a PVB containing cesium-doped tungsten oxide (CWO) particles or a PVB containing indium tin oxide (ITO) particles. As the heat insulating particles, metal oxide particles with high infrared shielding function can be selected. Examples include ITO particles, aluminum-doped tin oxide particles, antimond-doped tin oxide (ATO) particles, gallium-doped zinc oxide (GZO) particles, indium-doped zinc oxide (IZO) particles, aluminum-doped zinc oxide (AZO) particles, niobium-doped titanium oxide particles, sodium-doped tungsten oxide particles, CWO particles, thallium-doped tungsten oxide particles, rubidium-doped tungsten oxide particles, tin-doped zinc oxide particles, and silicon-doped zinc oxide particles. From the viewpoint of further improving the heat insulating performance of the infrared absorbing film 311, ITO particles or CWO particles are preferred. Furthermore, the average particle size of the insulating particles is preferably 10 nm or more, more preferably 20 nm or more, and preferably 200 nm or less, more preferably 100 nm or less, and even more preferably 50 nm or less. When the average particle size is above the lower limit, the function of cutting infrared rays (heat rays) is sufficiently improved. When the average particle size is below the upper limit, the dispersibility of the insulating particles is improved. For every 100% by weight of the infrared absorbing film, the weight percentage of the insulating particle content is preferably 0.01% to 6%, more preferably 0.1% to 5.5%, even more preferably 1% to 4%, and particularly preferably 1.5% to 3.5%. When the insulating particle content is above the lower limit and below the upper limit, the heat insulation performance is sufficiently improved, as is the visible light transmittance.
[0041] As shown in Figure 6, line A shows the transmittance of a combination of ordinary PVB film, first glass, and second glass for light in the 0nm to 2500nm wavelength range. The first and second glasses are green glass. Line B shows the transmittance of a combination of infrared absorbing film 311, first glass, and second glass for light in the 0nm to 2500nm wavelength range. The first and second glasses are green glass. Line C shows the transmittance of a combination of ordinary PVB film, first glass, and second glass for light in the 0nm to 2500nm wavelength range. The first and second glasses are ordinary transparent glass. The wavelength range of visible light is 390nm to 780nm, and the wavelength range of infrared light is 780nm to 2500nm. Clearly, the transmittance of the combination of ordinary PVB film and ordinary glass for light in the 905nm to 2500nm wavelength range is much higher than that of the combination of ordinary PVB film and green glass, and also much higher than that of the combination of infrared absorbing film 311 and green glass. Therefore, the heat insulation effect when using the combination of ordinary PVB film and ordinary glass is not ideal. Furthermore, starting from the 905nm wavelength range, the difference between the transmittance of the combination of infrared absorbing film 311 and the first and second glass and the transmittance of the combination of ordinary PVB film and the first and second glass gradually increases, and especially in the 1550nm wavelength range, the transmittance of the combination of infrared absorbing film 311 and the first and second glass is almost 0. Therefore, the heat insulation effect when using infrared absorbing film 311 is high. When light in the 780nm to 2500nm wavelength range is incident on the laminated glass 1, the infrared absorbing film 311 absorbs the heat caused by the light in the 780nm to 2500nm wavelength range, blocks the heat at the first glass 10, and then dissipates the heat attached to the first glass 10 through the outside air. In this embodiment, by installing the infrared absorbing film 311 in the heat insulating section 31, the heat insulating section 31 acquires heat insulating properties.
[0042] Referring to Figures 7 and 8, in one embodiment, the infrared blocking film 33 has an infrared reflective film 312 Includes: Infrared reflective film 312 The infrared reflective film has a reflectivity of 75% or more for light in the 780nm to 2500nm wavelength range. The thickness of the infrared reflective film is 0.02mm to 0.08mm, for example, 0.02mm, 0.04mm, 0.06mm, 0.08mm, etc. Preferably, the thickness of the infrared reflective film is 0.04mm or 0.06mm, and more preferably, the thickness of the infrared reflective film is 0.06mm.
[0043] Infrared reflective film 312 It reflects light in the 780nm to 2500nm wavelength range. Infrared reflective film 312 The material may be a thermoplastic resin film having a metal plating layer, or a laminated film of multiple thermoplastic resins. Specifically, a thermoplastic resin film having a metal plating layer has at least one metal layer and at least two medium layers deposited on the surface of the thermoplastic resin film, and examples include single silver-plated PET film, double silver-plated PET film, triple silver-plated PET film, etc. The metal layer is specifically a gold layer, copper layer, silver layer, or silver alloy layer. The gold layer, copper layer, silver layer, and silver alloy layer have excellent infrared reflection performance and can reduce the infrared transmittance of laminated glass. Preferred materials for the silver alloy layer include silver-copper alloy, silver-indium alloy, and silver-gold alloy. Preferably, the silver content in the silver alloy layer is 95% or more, and more preferably, the silver content in the silver alloy layer is 98% or more. The material of the medium layer can be selected from nitrides, oxides, or oxynitrides of at least one element from Zn, Sn, Ti, Si, Al, Ni, Cr, Nb, Mg, Zr, Ga, Y, In, Sb, V, and Ta, for example, AZO, TiO x ZnSnO x Examples include Si3N4. In some specific embodiments, multiple thermoplastic resin laminated films are used as infrared reflective films. 312When used as such, multiple thermoplastic resin laminated films may be multilayer resin films in which two or more thermoplastic resin layers having different refractive indices are laminated alternately or randomly in any number of layers. The number of layers ranges from 20 to 1000, and specifically includes 20, 50, 80, 100, 120, 150, 200, 300, 400, 500, 600, 700, 800, 900, and 1000 layers. Preferably, the number of layers is between 100 and 500.
[0044] As shown in Figure 8, line D represents the transmittance of the combination of the infrared absorbing film 311 and the first and second glasses for light in the wavelength range of 0 nm to 2500 nm. The first and second glasses are green glass. Line E represents the infrared reflective film. 312 The transmittance for light in the 0nm to 2500nm wavelength range is shown for a combination of ordinary PVB film, first glass, and second glass. The first and second glasses are ordinary transparent glass. Line F shows the transmittance for light in the 0nm to 2500nm wavelength range for a combination of PVB film, first glass, and second glass. The first and second glasses are green glass. Clearly, the transmittance for light in the 905nm to 2500nm wavelength range for a combination of ordinary PVB film and green glass is, the transmittance for light in the 905nm to 2500nm wavelength range for a combination of infrared absorbing film 311 and green glass, and infrared reflective film 312 The transmittance for light in the 905nm-2500nm wavelength range is much higher than that of a combination of ordinary PVB film and ordinary clear glass. Therefore, the heat insulation effect when using a combination of ordinary PVB film and green glass is not ideal. Furthermore, in the 850-905nm wavelength range, infrared reflective film 312 The heat insulation effect of the combination of ordinary PVB film, the first glass, and the second glass is better than the heat insulation effect of the combination of infrared absorbing film 311, the first glass, and the second glass, therefore, infrared reflective film 312The infrared absorbing film 311 is selected preferentially and designated as the infrared blocking film 33. Also, in the 1500-1600 nm wavelength band, the heat insulation effect of the combination of the infrared absorbing film 311 and the first and second glass is better than the heat insulation effect of the combination of the PET film, PVB film and the first and second glass, so the infrared absorbing film 311 is selected preferentially and designated as the infrared blocking film 33. In one embodiment, when light in the 780 nm-2500 nm wavelength band is incident on the laminated glass 1, the infrared reflective film 312 This reflects heat from light in the 780nm to 2500nm wavelength range, reducing the heat in the first glass 10 and consequently lowering the temperature inside the vehicle. In this embodiment, an infrared reflective film is applied to the heat insulating section 31. 312 By installing this, the insulation section 31 will acquire thermal insulation properties.
[0045] Referring to Figure 9, in one embodiment, the heat insulating section 31 includes an infrared absorbing film 311 and an infrared reflective film 312 Both are provided simultaneously. Infrared reflective film 312 The infrared absorbing film 311 is installed on the side closer to the first glass 10, and the infrared absorbing film 311 is installed on the side closer to the second glass 20. 312 These are stacked and installed. To make it easier to understand, when light in the 780nm to 2500nm wavelength range is incident on laminated glass 1, first, the infrared reflective film... 312 The first glass 10 reflects heat from light in the 780nm to 2500nm wavelength range, and then the infrared absorbing film 311 absorbs heat from light in the 780nm to 2500nm wavelength range, blocking the heat, and then dissipating the heat attached to the first glass 10 through the outside air. In this embodiment, the heat insulating part 31 has an infrared reflective film. 312 By sequentially installing the infrared absorbing film 311 and the heat insulating section 31, the heat insulating efficiency of the heat insulating section 31 is improved, and consequently the temperature inside the vehicle 80 is reduced. Naturally, in another embodiment, the infrared absorbing film 311 is installed on the side closer to the first glass 10, and the infrared reflective film 312 It is also possible to install it on the side closer to the second glass 20.
[0046] Specifically, the infrared absorbing film 311 may be a thermoplastic resin film containing heat insulating particles, for example, a PVB containing CWO particles, a PVB containing ITO particles, etc. The infrared absorbing film 311 converts solar energy into thermal energy via the indium tin oxide layer. That is, the infrared absorbing film 311 absorbs heat from light in the 780 nm to 2500 nm wavelength range, blocks that heat with the car glass, and then dissipates the thermal energy into the air by the airflow outside the vehicle 80.
[0047] Furthermore, infrared reflective film 312 It reflects light in the 780nm to 2500nm wavelength range. Infrared reflective film 312 The material may be a thermoplastic resin film having a metal plating layer, or a laminated film of multiple thermoplastic resins. Specifically, a thermoplastic resin film having a metal plating layer has at least one metal layer and at least two medium layers deposited on the surface of the thermoplastic resin film, and examples include single silver-plated PET film, double silver-plated PET film, triple silver-plated PET film, etc. The metal layer is specifically a gold layer, copper layer, silver layer, or silver alloy layer. The gold layer, copper layer, silver layer, and silver alloy layer have excellent infrared reflection performance and can reduce the infrared transmittance of laminated glass. Preferred materials for the silver alloy layer include silver-copper alloy, silver-indium alloy, and silver-gold alloy. Preferably, the silver content in the silver alloy layer is 95% or more, and more preferably, the silver content in the silver alloy layer is 98% or more. The material of the medium layer can be selected from nitrides, oxides, or oxynitrides of at least one element from Zn, Sn, Ti, Si, Al, Ni, Cr, Nb, Mg, Zr, Ga, Y, In, Sb, V, and Ta, for example, AZO, TiO x ZnSnO x Examples include Si3N4.
[0048] In some embodiments, referring to Figure 10, an infrared reflective film 312The film comprises a substrate layer 313 and a silver layer 314. The material of the substrate layer 313 may be PET. Because PET is smooth, a unique double magnetron sputtering method was used to sputter high-reflectivity noble metals and metal oxides onto both sides of the PET substrate. To understand this, an infrared reflective film is formed by laminating one silver layer 314 onto the substrate layer 313. 312 It forms an infrared reflective film. When it is hot, the silver layer 314 blocks heat from light in the 780nm to 2500nm wavelength range on the outside of the vehicle 80, and as a result, cools the inside of the vehicle. When it is cold, the silver layer 314 blocks heat from light in the 780nm to 2500nm wavelength range radiated from heat sources such as the human body, home appliances, and gas on the inside of the vehicle 80, and as a result, keeps the inside of the vehicle 80 warm in winter and cool in summer. This significantly reduces the load on air conditioners and heaters, saving on electricity costs. 312 It can reflect solar energy, reducing the total solar energy transmittance (Tts) and providing insulation.
[0049] Selectively, because the silver layer 314 is made of metallic material, it is an infrared reflective film. 312 It is conductive. Infrared reflective film 312 By adding busbars and an input power supply to both ends and applying voltage or current, the silver layer 314 generates heat, thereby effectively removing fogging, frost, snow accumulation, etc., that may occur on the first surface 10a and the second surface 10b of the first glass 10, and the third surface 20a and the fourth surface 20b of the second glass 20 in environments with large temperature differences between the inside and outside, or in cold environments. When the laminated glass 1 is applied as the windshield of an automobile, the windshield can ensure a clear view even in environments with large temperature differences between the inside and outside or in low-temperature environments, thereby providing convenience to the driver.
[0050] Referring to Figure 11, in one embodiment, an infrared reflective film 312The structure includes multiple base material layers 313 and multiple silver layers 314. The base material layers 313 and silver layers 314 are stacked alternately. The material of the base material layer 313 is PET. First, a silver layer 314 is placed on one side of the base material layer 313, and then another base material layer 313 is placed on the side of the silver layer 314 that is away from the base material layer 313, and so the base material layers 313 and silver layers 314 are stacked alternately in this manner. It is preferable to install three base material layers 313 and three silver layers 314. Furthermore, in this embodiment, by stacking three base material layers 313 and three silver layers 314 alternately at once, the silver layers 314 can be covered on the base material layers 313 as much as possible, and as a result, it is possible to prevent insufficient reflection effect due to the silver layer 314 being too thin, or to prevent disadvantages in thinning the overall structure and waste of material due to the silver layer 314 being too thick.
[0051] Referring to Figures 12 and 13, the adhesive layer 30 further includes a first adhesive layer 41 and / or a second adhesive layer 42. The first adhesive layer 41 is connected to the first glass 10 and an infrared reflective film. 312 The second adhesive layer 42 is installed between the second glass 20 and the infrared reflective film. 312 It will be installed between [the two points].
[0052] Referring to Figures 12 and 13 together, one side of the first adhesive layer 41 is bonded to the second surface 10b of the first glass 10, and the other side of the first adhesive layer 41 is bonded to the infrared reflective film. 312 The first adhesive layer 41 and the second adhesive layer 42 bond the first glass 10 to the infrared reflective film. 312The first glass 10 and the second glass 20 are bonded and molded in this order. This allows for a firm connection between the first glass 10 and the second glass 20. The materials of the first adhesive layer 41 and the second adhesive layer 42 are at least one of PVB, EVA, PC, PVC, PA, PMMA, PUR, and SGP. Preferably, the materials of the first adhesive layer 41 and the second adhesive layer 42 are PVB. The first adhesive layer 41 has a transmittance of 70% or more for light in the 780nm to 2500nm wavelength band, and preferably, the first adhesive layer 41 may have a transmittance of 75%, 80%, or 85% for light in the 780nm to 2500nm wavelength band. The second adhesive layer 42 has a transmittance of 70% or more for light in the 780nm to 2500nm wavelength range, and preferably, the second adhesive layer 42 may have a transmittance of 75%, 80%, or 85% for light in the 780nm to 2500nm wavelength range. Therefore, the high visible light transmittance of the first adhesive layer 41 and the second adhesive layer 42 ensures that the laminated glass 1 has high transparency. The thickness of the first adhesive layer 41 is usually set to 0.3mm to 2.3mm, for example, 0.38mm, 0.51mm, 0.76mm, 0.81mm, etc. Preferably, the thickness of the first adhesive layer 41 is 0.38mm or 0.76mm, and more preferably 0.76mm. The thickness of the second adhesive layer 42 is usually set to 0.3mm to 2.3mm, for example, 0.38mm, 0.51mm, 0.76mm, 0.81mm, etc. Preferably, the thickness of the second adhesive layer 42 is 0.38 mm, 0.76 mm, and more preferably 0.76 mm. ru.
[0053] Referring to Figure 14, line G shows the transmittance of the EVA, first glass, and second glass combination for light in the 780nm-2500nm wavelength range incident from various angles. Line H shows the transmittance of the PVB, first glass, and second glass combination for light in the 780nm-2500nm wavelength range incident from various angles. The EVA, first glass, and second glass combination has a transmittance of 83.3%-92.9% for light in the 780nm-2500nm wavelength range. The PVB, first glass, and second glass combination has a transmittance of 78.6%-87.7% for light in the 780nm-2500nm wavelength range. Clearly, the laminated glass formed by the EVA, first glass, and second glass combination has a higher transmittance compared to the laminated glass formed by the PVB, first glass, and second glass combination. The above laminated glass can be selected and used according to actual needs.
[0054] In one embodiment, the first adhesive layer 41 and the second adhesive layer 42 may contain a plasticizer. The plasticizer is used to improve the sound insulation effect. The plasticizer content in the first adhesive layer 41 is higher than the plasticizer content in the second adhesive layer 42.
[0055] Preferably, in order to achieve a thinner and lighter overall thickness of the laminated glass 1, in this embodiment the thickness of the first adhesive layer 41 is set to 0.76 mm and the thickness of the second adhesive layer 42 is set to 0.38 mm. By setting the thickness of the first adhesive layer 41 to be greater than the thickness of the second adhesive layer 42, the plasticizer content in the first adhesive layer 41 becomes higher than the plasticizer content in the second adhesive layer 42, and as a result the sound insulation effect of the laminated glass 1 is improved. Of course, in another embodiment, the thickness of the first adhesive layer 41 can be set to 0.38 mm and the thickness of the second adhesive layer 42 can be set to 0.76 mm. This application does not specifically limit these, and all fall within the scope of protection of this application.
[0056] Referring together to Figures 15 to 17, the first adhesive layer 41 has a second opening 411, and the infrared-transmitting film 34 is also filled in the second opening 411. Alternatively, the second adhesive layer 42 has a third opening 421, and the infrared-transmitting film 34 is also filled in the third opening 421. Alternatively, the first adhesive layer 41 has a second opening 411, the second adhesive layer 42 has a third opening 421, and the infrared-transmitting film 34 is also filled in the second opening 411 and the third opening 421.
[0057] Referring to Figure 15, in one embodiment, the first adhesive layer 41 is provided with a second opening 411. The infrared-transmitting film 34 is placed inside the second opening 411. Specifically, the adhesive layer 30 consists of the first adhesive layer 41 which is sequentially laminated and the infrared-reflective film 312 This includes a second adhesive layer 42 and an infrared reflective film. 312 It is sandwiched between the first adhesive layer 41 and the second adhesive layer 42. In the orthographic projection direction on the second surface 10b of the first glass 10 of the infrared transmitting film 34, the first adhesive layer 41 and the infrared reflective film 312 A second opening 411 is formed that sequentially penetrates the two, and the second opening 411 is used to fill the infrared-transmitting film 34. Infrared-transmitting film 34 The material may be at least one of PVB, EVA, PC, PVC, PA, PMMA, PUR, and SGP. Preferably, the material of the infrared-transmitting film 34 is PVB. Since the PVB material has high transparency and its transmittance to light in the 780nm to 2500nm wavelength band is 75% or more, infrared rays can effectively pass through the wave-transmitting portion 32. In this embodiment, the thickness of the infrared-transmitting film 34 is set to 0.3mm to 0.9mm, for example, its thickness is set to 0.43mm, 0.56mm, 0.81mm, 0.86mm, etc. Preferably, its thickness is 0.43mm or 0.81mm, and more preferably, its thickness is 0.81mm. The thickness of the infrared-transmitting film 34 is the thickness of the first adhesive layer 41 plus the thickness of the infrared-reflective film 312 This is the thickness added to the first adhesive layer 41. For example, the thickness of the first adhesive layer 41 is 0.76 mm, and the infrared reflective film 312If the thickness of the first adhesive layer 41 is 0.05 mm, the thickness of the infrared-transmitting film 34 is 0.81 mm. Thus, the infrared-transmitting film 34 and the first adhesive layer 41 and the infrared-reflective film 312 This ensures overall flatness. PVB has high transparency and particularly low absorption for light in the 850nm to 950nm wavelength range. Especially in the 905nm wavelength range, when light in the 905nm wavelength range passes through the wave-transmitting section 32, by using PVB as the substrate for the infrared-transmitting film 34, the infrared-transmitting film 34 becomes highly transmittant, and as a result, good signal transmission for light in the 905nm wavelength range is possible by the wave-transmitting section 32.
[0058] Referring to Figure 16, in another embodiment, the second adhesive layer 42 is provided with a third opening 421. The infrared-transmitting film 34 is placed within the third opening 421. Specifically, the adhesive layer 30 consists of a first adhesive layer 41 that is sequentially laminated and an infrared-reflective film. 312 This includes a second adhesive layer 42 and an infrared reflective film. 312 It is sandwiched between the first adhesive layer 41 and the second adhesive layer 42. In the orthographic projection direction on the third surface 20a of the second glass 20 of the infrared transmitting film 34, the second adhesive layer 42 and the infrared reflective film 312A third opening 421 is formed that sequentially penetrates the first adhesive layer 41. The third opening 421 is used to fill the infrared-transmitting film 34. The material of the infrared-transmitting film 34 may be at least one of PVB, EVA, PC, PVC, PA, PMMA, PUR, and SGP. Preferably, the material of the infrared-transmitting film 34 is PVB. Since the PVB material has high transparency and its transmittance to light in the 780nm to 2500nm wavelength band is 75% or more, infrared rays can effectively pass through the wave-transmitting portion 32. In this embodiment, the thickness of the infrared-transmitting film 34 is set to 0.3mm to 0.9mm, for example, its thickness is set to 0.43mm, 0.56mm, 0.81mm, 0.86mm, etc. Preferably, its thickness is 0.43mm, 0.81mm, and more preferably, its thickness is 0.81mm. The thickness of the infrared-transmitting film 34 is the thickness of the first adhesive layer 41 plus the thickness of the infrared-reflective film 312 This is the thickness added to the first adhesive layer 41. For example, the thickness of the first adhesive layer 41 is 0.76 mm, and the infrared reflective film 312 If the thickness of the first adhesive layer 41 is 0.05 mm, the thickness of the infrared-transmitting film 34 is 0.81 mm. Thus, the infrared-transmitting film 34 and the first adhesive layer 41 and the infrared-reflective film 312 This ensures overall flatness. PVB has high transparency and particularly low absorption for light in the 850nm to 950nm wavelength range. Especially in the 905nm wavelength range, when light in the 905nm wavelength range passes through the wave-transmitting section 32, by using PVB as the substrate for the infrared-transmitting film 34, the infrared-transmitting film 34 becomes highly transmittant, and as a result, good signal transmission for light in the 905nm wavelength range is possible by the wave-transmitting section 32.
[0059] Referring to Figure 17, in another embodiment, the first adhesive layer 41 is provided with a second opening 411. The second adhesive layer 42 is provided with a third opening 421. The infrared-transmitting film 34 is installed in the second opening 411 and the third opening 421. Specifically, the adhesive layer 30 consists of the first adhesive layer 41 which is sequentially laminated and the infrared-reflective film 312This includes a second adhesive layer 42 and an infrared reflective film. 312 It is sandwiched between the first adhesive layer 41 and the second adhesive layer 42. In the orthographic projection direction on the second surface 10b of the first glass 10 of the infrared transmitting film 34, the first adhesive layer 41 and the infrared reflective film 312 A second opening 411 is formed that sequentially penetrates the two. The second opening 411 is used to fill the infrared-transmitting film 34. In the orthographic projection direction on the third surface 20a of the second glass 20 of the infrared-transmitting film 34, the second adhesive layer 42 and the infrared-reflective film 312 A third opening 421 is formed that sequentially penetrates the and . The third opening 421 is used to fill the infrared-transmitting film 34. In this embodiment, the thickness of the infrared-transmitting film 34 is set to 0.6 mm to 1.7 mm, for example, its thickness is set to 0.81 mm, 1.0 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm, 1.57 mm, etc. Preferably, its thickness is 1.2 mm. The material of the infrared-transmitting film 34 may be at least one of PVB, EVA, PC, PVC, PA, PMMA, PUR, SGP. Preferably, Infrared-transmitting film 34The material is EVA. Generally, EVA resin has a vinyl acetate (VA) content of 5% to 40% and possesses high transparency. Furthermore, under certain conditions, EVA becomes a thermosetting, crosslinkable resin. Radicals produced by the high-temperature decomposition of the crosslinking agent (peroxide) induce a series of crosslinking reactions, resulting in the molecules changing from a linear structure to a network structure through crosslinking bonds. After crosslinking, the material exhibits significant improvements in strength, light transmittance, high-temperature creep resistance, solvent resistance, watertightness, resistance to humid heat aging, resistance to UV irradiation aging, and resistance to yellowing. For example, EVA has a transmittance of 75% or more for light in the 780nm to 2500nm wavelength range, and as a result, infrared light is effectively transmitted through the wave-transmitting section 32. EVA has high transparency, and in particular, it has low absorption for light in the 1500nm to 1600nm wavelength range. In particular, in the 1550nm wavelength band, when light in the 1550nm wavelength band passes through the wave-transmitting section 32, by using EVA as the substrate for the infrared-transmitting film 34, the infrared-transmitting film 34 becomes highly transmittant, and as a result, the wave-transmitting section 32 enables good signal transmission for light in the 1550nm wavelength band.
[0060] Referring to Figure 18, the present application further provides a vehicle 80, which includes a vehicle body 81, laminated glass 1, and a laser radar 70. The laminated glass 1 is mounted on the vehicle body 81, and the laser radar 70 is mounted inside the vehicle body 81. The laser radar 70 transmits and receives electromagnetic wave signals through the wave-transmitting portion 32 of the laminated glass 1, with the wavelength of the electromagnetic waves being 780 nm to 2500 nm.
[0061] Specifically, vehicle 80 may be, but is not limited to, automobiles, multi-purpose vehicles (MPVs), sport / suburban utility vehicles (SUVs), off-road vehicles (ORVs), pickup trucks, minivans, buses, trucks, etc.
[0062] Selectively, the mainstream options for the laser radar 70 include 905nm laser radar 70 and 1550nm laser radar 70. The 905nm laser radar 70 collects information using an infrared laser with a wavelength of 905nm, irradiating a laser beam as a detection signal into the surrounding three-dimensional space, and receiving echo signals, which are detection signals reflected by objects in the surrounding space. The laser radar 70 obtains relevant information such as the distance and speed of surrounding objects by comparing the received echo signals with the transmitted detection signals. The operating principle of the 1550nm laser radar 70 is the same. The wave-transmitting portion 32 of the laminated glass 1 is used to transmit electromagnetic wave signals transmitted and received by the 905nm laser radar 70 and the 1550nm laser radar 70. A vehicle 80 equipped with one or more laser radars 70 can detect obstacles around the vehicle while stationary or in motion by having functions such as imaging, ranging, and positioning.
[0063] The above is a detailed description of the embodiments of this application. This specification has used specific examples to illustrate the principles and embodiments of this application. The above description of embodiments is used solely to aid in understanding the methods and core ideas of this application. At the same time, for those skilled in the art, the specific embodiments and scope of application will vary based on the ideas of this application. As stated above, this specification should not be understood as limiting this application.
Claims
1. It is laminated glass, The laminated glass comprises a first glass pane, a second glass pane, and an adhesive layer, which are sequentially stacked and installed, and the first glass pane and the second glass pane are connected via the adhesive layer. The adhesive layer comprises an infrared blocking film and an infrared transmitting film, wherein the infrared blocking film is provided with a first opening, and at least a portion of the first opening is provided with the infrared transmitting film. The laminated glass further includes a heat insulating portion and a wave-transmitting portion, wherein the heat insulating portion corresponds to the region on which the infrared-blocking film is installed, the wave-transmitting portion corresponds to the region on which the infrared-transmitting film is installed, the heat insulating portion has a transmittance of 45% or less for light in the 780 nm to 2500 nm wavelength band, the heat insulating portion has a visible light transmittance of 70% or more, and the wave-transmitting portion has a transmittance of 70% or more for light in the 780 nm to 2500 nm wavelength band. Laminated glass characterized by the following features.
2. The heat insulating portion has a transmittance of 35% or less for light in the 850 nm to 950 nm wavelength range, and a transmittance of 10% or less for light in the 1500 nm to 1600 nm wavelength range. The laminated glass according to feature 1.
3. The wave-transmitting portion has a transmittance of 75% or more for light in the 850 nm to 950 nm wavelength band, and the wave-transmitting portion has a transmittance of 75% or more for light in the 1500 nm to 1600 nm wavelength band. The laminated glass according to any one of claims 1 to 2.
4. The first glass has a transmittance of 75% or more for light in the wavelength range of 780 nm to 2500 nm, and the second glass has a transmittance of 75% or more for light in the wavelength range of 780 nm to 2500 nm. The laminated glass according to any one of claims 1 to 3.
5. The infrared blocking film includes an infrared absorbing film, and the infrared absorbing film absorbs light in the wavelength range of 780 nm to 2500 nm. The laminated glass according to any one of claims 1 to 4.
6. The thickness of the infrared absorbing film is 0.3 mm to 2.3 mm. The laminated glass according to feature 5.
7. The infrared absorbing film may be a thermoplastic resin film containing heat insulating particles. The laminated glass according to any one of claims 5 to 6.
8. The infrared blocking film includes an infrared reflective film, and the infrared reflective film reflects light in the wavelength range of 780 nm to 2500 nm. The laminated glass according to any one of claims 1 to 7.
9. The thickness of the infrared reflective film is 0.02 mm to 0.08 mm. The laminated glass according to feature 8.
10. The infrared reflective film may be a thermoplastic resin film having a metal plating layer, or a plurality of thermoplastic resin laminated films. The laminated glass according to any one of claims 8 to 9.
11. The adhesive layer further comprises a first adhesive layer and / or a second adhesive layer, wherein the first adhesive layer is installed between the first glass and the infrared reflective film, and the second adhesive layer is installed between the second glass and the infrared reflective film. The laminated glass according to any one of claims 8 to 10.
12. The first adhesive layer has a second opening, and the infrared-transmitting film is also filled into the second opening, or The second adhesive layer has a third opening, and the infrared-transmitting film is also filled into the third opening, or The first adhesive layer has a second opening, the second adhesive layer has a third opening, and the infrared-transmitting film is filled into the second and third openings as well. The laminated glass according to feature 11.
13. The thickness of the first adhesive layer is 0.3 to 2.3 mm, and the thickness of the second adhesive layer is 0.3 to 2.3 mm. The laminated glass according to any one of claims 11 to 12.
14. The first adhesive layer has a transmittance of 70% or more for light in the 780 nm to 2500 nm wavelength range, and the second adhesive layer has a transmittance of 70% or more for light in the 780 nm to 2500 nm wavelength range. The laminated glass according to any one of claims 11 to 13.
15. The infrared-transmitting film includes at least one of the following: polyvinyl butyral (PVB), ethylene vinyl acetate (EVA), polycarbonate (PC), polyvinyl chloride (PVC), polyacrylate (PA), polymethyl methacrylate (PMMA), polyurethane (PUR), and ionic polymer film (SGP). The laminated glass according to any one of claims 1 to 14.
16. The shape of the infrared-transmitting film installed in the first opening is the same as the shape of the first opening. The laminated glass according to any one of claims 1 to 15.
17. The adhesive layer comprises one laminated infrared-blocking film and one infrared-transmitting film, the infrared-blocking film having a first opening, and the portion of the infrared-transmitting film corresponding to the first opening flows into the first opening such that at least a portion of the infrared-transmitting film is provided within the first opening. The laminated glass according to any one of claims 1 to 4.
18. The adhesive layer comprises one laminated infrared-blocking film and two infrared-transmitting films, the three layers being laminated in the order of infrared-transmitting film, infrared-blocking film, and infrared-transmitting film, wherein the infrared-blocking film has a first opening, and the portion of the infrared-transmitting film corresponding to the first opening flows into the first opening so that at least a portion of the infrared-transmitting film is provided within the first opening. The laminated glass according to any one of claims 1 to 4.
19. The area of the infrared-transmitting film is equal to the area of the infrared-blocking film. The laminated glass according to any one of claims 17 to 18.
20. It is a vehicle, The vehicle body includes the laminated glass described in any one of claims 1 to 19 and a laser radar, The laminated glass is attached to the vehicle body. The laser radar is mounted inside the vehicle body, and transmits and receives electromagnetic wave signals through the wave-transmitting portion of the laminated glass, with the wavelength of the electromagnetic wave being 780 nm to 2500 nm. A vehicle characterized by the following features.