Laminated heat-insulating glass with locally high infrared transmission and vehicles containing it

Abstract

The present invention provides laminated insulated glass with locally high infrared transmittance and a vehicle containing the same. The laminated insulated glass includes an outer glass plate having a first surface and a second surface, an inner glass plate having a third surface and a fourth surface, and a thermoplastic intermediate layer interposed between the second surface and the third surface. The laminated insulated glass further includes an infrared transmittance enhancing layer and an insulating layer. The infrared transmittance enhancing layer and the insulating layer are not located on the same glass surface. The insulating layer has a film removal region. The present invention satisfies the usage requirement that the attenuation of signals from a laser radar or infrared camera transmitted through the laminated insulated glass be 3 dB or less, improving the usage accuracy of the laser radar or infrared camera, significantly reducing the energy consumption of the air conditioner, and improving the comfort of the driver and passengers.

Description

Technical Field

[0001] (Cross-reference to Related Applications) This application claims the priority of a Chinese patent application filed with the China National Intellectual Property Administration on March 17, 2023, with the application number 202310262567.5 and the invention title "Laminated Insulating Glass with Locally High Infrared Transmittance and a Vehicle Comprising the Same", and incorporates all of its contents herein by reference.

[0002] The present invention relates to the field of glass, and more particularly, to a laminated insulating glass with locally high infrared transmittance and a vehicle comprising the same.

Background Art

[0003] An automotive windshield is usually a laminated glass including an outer glass sheet, a thermoplastic interlayer, and an inner glass sheet. When a multi-functional camera or a lidar is attached to the inner surface of the inner glass sheet, the signal data of the multi-functional camera or the lidar needs to be transmitted and / or received through the outer glass sheet, the thermoplastic interlayer, and the inner glass sheet. Since both the glass itself and the thermoplastic interlayer (e.g., PVB) absorb infrared rays, for 905 nm lidars, 1550 nm lidars, and 850 - 1400 nm infrared cameras, conventional laminated glasses inhibit the transmission of the signal data of the lidars and infrared cameras, affecting the normal operation of the lidars and infrared cameras, and the actual adaptation effect is not ideal. Also, in order to improve the safety and comfort of vehicle driving, automotive glass often has functions such as electric heating and heat insulation. These functions are realized by depositing a metal film layer or a transparent conductive oxide film layer on the surface of the automotive glass. However, since the metal film layer or the transparent conductive oxide film layer has the property of infrared reflection, the inhibition of the automotive glass with an electric heating function or a heat insulation function on the transmission of the signal data of the lidars and infrared cameras becomes greater.

[0004] CN101678651A discloses laminated vehicle window glass suitable for use with optical sensors (e.g., LiDAR sensors). The laminated vehicle window glass comprises first and second window glass material layers. The first and second window glass material layers are connected via an interlayer material layer between them. The first window glass material layer is a colored glass plate. The window glass has a transmittance of at least 30% in the wavelength range of 400 to 2100 nm and at least 32% in the wavelength range of 750 to 1300 nm. Such transmittances still did not reach a level that was practical for laser radar or infrared cameras. CN101037099A discloses an apparatus and method for mounting an outward-facing infrared camera inside a vehicle. In this apparatus, a plastic insert having an infrared see-through portion is fitted into a through-hole in the windshield. However, this invention compromises the overall integrity of the outer surface of the windshield, thereby reducing safety to some extent. Furthermore, laminated glass with through-holes presents process problems in actual production, such as large overlap differences between the joining pieces and the difficulty of vacuuming. [Overview of the project] [Problems that the invention aims to solve]

[0005] This invention provides laminated heat-insulating glass with high localized infrared transmission and a vehicle including it, in order to solve the drawbacks of conventional laminated glass, such as the unideal actual compatibility effect between it and laser radar or infrared cameras. [Means for solving the problem]

[0006] To achieve the above objectives, this invention employs the following technical solutions.

[0007] One aspect of the present invention includes an outer glass plate having a first surface and a second surface, an inner glass plate having a third surface and a fourth surface, and a thermoplastic intermediate layer interposed between the second surface and the third surface. It further includes an infrared transmission-enhancing layer and an insulating layer, The infrared transmission enhancement layer and the heat insulating layer are not located on the same glass surface. The orthographic projection on the first surface of the infrared transmission-enhancing layer and the orthographic projection on the first surface of the heat-insulating layer have an overlapping region. The aforementioned heat insulating layer is provided with a film removal region. The present invention provides laminated insulating glass with locally high infrared transmission, wherein the orthographic projection of the infrared transmission-enhanced layer in the insulating layer covers the film removal region.

[0008] In the laminated heat-insulating glass according to the present invention, the infrared transmission enhancement layer and the heat-insulating layer do not exist on the same glass surface, and can be plated on different glass surfaces, resulting in good overall appearance consistency. By only partially removing the film from the heat-insulating layer so that the film removal area corresponds to the signal transmission area of ​​a laser radar or infrared camera, it is not necessary to remove the film from the infrared transmission enhancement layer, making the process simple and easy.

[0009] In the laminated heat-insulating glass according to the present invention, preferably, the orthographic projection on the first surface of the infrared transmission-enhancing layer occupies 70% or more of the area of ​​the first surface, the orthographic projection on the first surface of the heat-insulating layer occupies 70% or more of the area of ​​the first surface, and the overlapping region occupies at least 80% of the orthographic projection on the first surface of the heat-insulating layer. That is, the area occupied by the film removal region in the heat-insulating layer is less than 20%, and the film removal region of the heat-insulating layer is covered only by the infrared transmission-enhancing layer.

[0010] In the laminated heat-insulating glass according to the present invention, preferably, the infrared transmission-enhancing layer includes a first high refractive index layer, a first low refractive index layer, a second high refractive index layer, and a second low refractive index layer that are separated in order from the glass surface, wherein the physical thickness of the first high refractive index layer is greater than the physical thickness of the first low refractive index layer, and the physical thickness of the second high refractive index layer is greater than the physical thickness of the second low refractive index layer.

[0011] In the laminated heat insulating glass according to the present invention, preferably, the refractive index of the first high refractive index layer is 1.8 to 2.7, the physical thickness of the first high refractive index layer is 110 nm to 160 nm, the refractive index of the first low refractive index layer is 1.3 to 1.7, the physical thickness of the first low refractive index layer is 5 nm to 50 nm, the refractive index of the second high refractive index layer is 1.8 to 2.7, the physical thickness of the second high refractive index layer is 100 nm to 160 nm, the refractive index of the second low refractive index layer is 1.3 to 1.7, and the physical thickness of the second low refractive index layer is 55 nm to 110 nm.

[0012] In the laminated heat-insulating glass according to the present invention, preferably, the difference between the physical thickness of the first high refractive index layer and the physical thickness of the first low refractive index layer is 50 nm or more, and the difference between the physical thickness of the second high refractive index layer and the physical thickness of the second low refractive index layer is 30 nm or more.

[0013] In the laminated heat-insulating glass according to the present invention, preferably, the difference between the physical thickness of the first high refractive index layer and the physical thickness of the first low refractive index layer is 100 nm or more, and the difference between the physical thickness of the second high refractive index layer and the physical thickness of the second low refractive index layer is 40 nm or more.

[0014] In the laminated heat-insulating glass according to the present invention, preferably, the material of the first high refractive index layer and the second high refractive index layer is an oxide, nitride, or oxynitride of at least one element selected from Zn, Sn, Ti, Nb, Zr, Ni, In, Al, Ce, W, Mo, Sb, Bi, Si, Hf, Ta, Y, Ce, La, and the material of the first low refractive index layer and the second low refractive index layer is an oxide, oxynitride, or fluoride of at least one element selected from Si, Al, Mg, Ce, La, Y, Ba.

[0015] According to the laminated heat-insulating glass of the present invention, preferably, the heat-insulating layer comprises at least two metallic silver layers, silver alloy layers, or transparent conductive oxide layers, wherein the material of the silver alloy layer is at least one selected from silver-copper alloy, silver-aluminum alloy, silver-indium alloy, silver-gold alloy, silver-platinum alloy, silver-nickel alloy, silver-chromium alloy, silver-tin alloy, silver-titanium alloy, silver-zirconium alloy, silver-molybdenum alloy, silver-tungsten alloy, silver-manganese alloy, and silver-magnesium alloy, and the material of the transparent conductive oxide layer is at least one selected from tin-doped indium oxide, fluorine-doped tin oxide, antimond-doped tin oxide, aluminum-doped zinc oxide, indium-doped zinc oxide, and gallium-doped zinc oxide.

[0016] In the laminated heat-insulating glass according to the present invention, preferably, the outer glass plate and / or inner glass plate are ultra-transparent glass, the total iron content of the ultra-transparent glass is 0.015% or less by mass percentage, and the visible light transmittance of the ultra-transparent glass is 91% or more.

[0017] In the laminated heat-insulating glass according to the present invention, preferably, the visible light transmittance TL10 of the ultratransparent glass piece provided with the infrared transmission-enhancing layer is 90% or more, and the ultratransparent glass provided with the infrared transmission-enhancing layer has a first near-infrared transmittance Tp1 of 85% or more for P-polarized light of 905 nm incident at an incident angle of 50° to 73°.

[0018] In the laminated heat-insulating glass according to the present invention, preferably, the ultratransparent glass provided with the infrared transmission-enhancing layer has a first near-infrared transmittance Tp1 for P-polarized light of 905 nm incident at an incident angle of 55° to 70° that is greater than the visible light transmittance TL10 of the individual pieces.

[0019] In the laminated heat-insulating glass according to the present invention, preferably, the ultratransparent glass provided with the infrared transmission-enhancing layer has a first near-infrared transmittance Tp1 for P-polarized light of 905 nm wavelength incident at an incident angle of 50° to 73°, with a maximum value Tp1max and a minimum value Tp1min, and the difference between the maximum value Tp1max and the minimum value Tp1min is less than 10%.

[0020] According to the laminated insulating glass of the present invention, preferably, the first visible light transmittance TL1 of the laminated insulating glass is 85% or more, the second visible light transmittance TL2 is 70% or more, and the visible light reflectance RL4 of the fourth surface is 10% or less.

[0021] According to the laminated insulating glass of the present invention, preferably, the total solar energy transmittance Tts of the laminated insulating glass is 50% or less.

[0022] According to the laminated insulating glass of the present invention, preferably, the second near-infrared transmittance Tp2 of the laminated insulating glass with respect to P-polarized light having a wavelength of 905 nm incident at an incident angle of 50° to 73° is 80% or more, and the second near-infrared transmittance Tp2 of the laminated insulating glass with respect to P-polarized light having a wavelength of 905 nm incident at an incident angle of 55° to 65° is 90% or more.

[0023] According to the laminated insulating glass of the present invention, preferably, the reflected hue of the first surface of the laminated insulating glass has an a value of -5 to 2 and a b value of -12 to 0 in the Lab system.

[0024] Another aspect of the present invention includes a sensor and the above-mentioned laminated insulating glass. The sensor is attached inside a vehicle, and a detection signal having a wavelength of 905 nm transmitted and / or received by the sensor passes through the film removal region, providing a vehicle. Exemplarily, the laminated insulating glass may be used as a windshield or the like.

[0025] According to the vehicle of the present invention, preferably, the detection signal is incident on the film removal region at an incident angle of 50° to 73° and includes at least 80% P-polarized light.

Advantages of the Invention

[0026] The laminated insulating glass of the present invention can achieve that automotive glass meets the communication needs of high-sensitivity communication sensors such as lidar and infrared cameras. Also, by meeting the heat insulation needs, the total solar energy transmittance of the laminated insulating glass does not exceed 50%, and the visible light reflectance of the fourth surface is low, which can further reduce the impact on the driver of the glare inside the vehicle when used as vehicle glass. At the same time, it meets the usage requirement that the attenuation of the signal of the lidar or infrared camera passing through the laminated insulating glass is below 3 dB, guarantees the normal operation of the lidar or infrared camera, improves the usage accuracy of the lidar or infrared camera, greatly reduces the energy consumption of the air conditioner, and can improve the comfort of the driver and passengers. Further, the laminated insulating glass of the present invention adopts a local film removal process only for the overall plating film and the heat insulation layer, so the process is simple and the appearance consistency of the entire film layer is good.

Brief Description of the Drawings

[0027] [Figure 1] Figure 1 schematically showing the layer structure of the laminated insulating glass with high infrared transmittance locally in the present invention [Figure 2] Planar schematic diagram of the laminated insulating glass with high infrared transmittance locally in the present invention [Figure 3] Figure 2 schematically showing the layer structure of the laminated insulating glass with high infrared transmittance locally in the present invention [Figure 4] Figure 3 schematically showing the layer structure of the laminated insulating glass with high infrared transmittance locally in the present invention

Embodiments for Carrying out the Invention

[0028] To explain the present invention more clearly, the present invention will be further described below in combination with preferred embodiments. It should be understood that the content specifically described below is illustrative rather than restrictive and does not limit the protection scope of the present invention.

[0029] The laminated heat-insulating glass according to the present invention forms an infrared transmission enhancement layer and a heat-insulating layer by performing full-surface plating on different surfaces of a glass substrate, and by partially removing the film in the heat-insulating layer to form a film removal region, it is used to accommodate the mounting of high-sensitivity communication sensors such as laser radar and infrared cameras, and has advantages such as a simple process and good consistency in the appearance of the entire film layer. Furthermore, in the laminated structure of the high refractive index layer / low refractive index layer of the infrared transmission enhancement layer of the present invention, the thickness of the high refractive index layer is greater than the thickness of the low refractive index layer, so the accuracy and efficiency of wide-field-of-view detection of the sensor are guaranteed.

[0030] As shown in Figures 1 to 4, the laminated heat-insulating glass of the present invention includes an outer glass plate 1, an inner glass plate 2, and a thermoplastic intermediate layer 3. The outer glass plate 1 has a first surface 11 and a second surface 12, the inner glass plate 2 has a third surface 21 and a fourth surface 22, and the thermoplastic intermediate layer 3 is interposed between the second surface 12 and the third surface 21.

[0031] Furthermore, the laminated heat-insulating glass includes an infrared transmission enhancement layer 5 and a heat-insulating layer 4 that are not located on the same glass surface. The orthographic projection of the infrared transmission enhancement layer 5 on the first surface 12 and the orthographic projection of the heat-insulating layer 4 on the first surface 12 have an overlapping region, a film removal region 41 is provided on the heat-insulating layer 4, and the orthographic projection of the infrared transmission enhancement layer 5 on the heat-insulating layer 4 covers the film removal region 41. Specifically, the infrared transmission enhancement layer 5 may be provided on the second surface 12, the third surface 21, or the fourth surface 22. Specifically, the heat-insulating layer 4 may be provided on the second surface 12, the third surface 21, or between the second surface 12 and the third surface 21.

[0032] As shown in Figure 1, in one specific embodiment, the laminated insulated glass includes an outer glass plate 1, an inner glass plate 2, and a thermoplastic intermediate layer 3. The outer glass plate 1 has a first surface 11 and a second surface 12, the inner glass plate 2 has a third surface 21 and a fourth surface 22, and the thermoplastic intermediate layer 3 is interposed between the second surface 12 and the third surface 21.

[0033] An infrared transmission enhancement layer 5 is provided on the fourth surface 22, a heat insulating layer 4 is provided on the second surface 12, and a film removal region 41 is provided on the heat insulating layer 4.

[0034] As shown in Figure 3, the difference between this specific embodiment and Figure 1 is that the infrared transmission enhancement layer 5 is provided on the third surface 21, and the heat insulating layer 4 is provided on the second surface 12.

[0035] As shown in Figure 4, the difference between this specific embodiment and Figure 1 is that the infrared transmission enhancement layer 5 is provided on the second surface 12, and the heat insulating layer 4 is provided on the third surface 21.

[0036] In the laminated insulated glass shown in Figures 1, 3, and 4, the infrared transmission strengthening layer 5 and the insulation layer 4 are provided on different glass surfaces and are formed by full-surface plating on the different glass surfaces. Subsequently, partial film removal is performed on the insulation layer 4 to form a film removal region 41. Alternatively, the insulation layer 4 may be provided between the second surface 12 and the third surface 21. Specifically, the insulation layer 4 is formed by plating on the surface of a single organic resin film, and the film removal region 41 is formed by partial shielding during the plating process. Alternatively, the film removal region 41 is formed by partial film removal after full-surface plating, and then the organic resin film with the insulation layer 4 is laminated between the second surface 12 and the third surface 21. Specifically, it may be located between the second surface 12 and the thermoplastic intermediate layer 3, between the thermoplastic intermediate layer 3 and the third surface 21, or within the thermoplastic intermediate layer 3. For example, if the thermoplastic intermediate layer 3 includes two transparent PVBs, the organic resin film with the insulation layer 4 is interposed between the two transparent PVBs. Examples of organic resin films include polyethylene terephthalate (PET), polymethyl methacrylate (PMMA), polycarbonate (PC), polyethylene naphthalate (PEN), and cellulose acetate (CA).

[0037] As shown in Figure 2, in the laminated insulated glass 100, the film removal region 41 of the insulation layer 4 covers at least region 102. That is, region 102 is the region in the laminated insulated glass 100 that is covered only by the infrared transmission enhancement layer 5. Detection signals from high-sensitivity communication sensors such as laser radar and infrared cameras pass through region 102. The infrared transmission enhancement layer 5 can improve the transmittance of the detection signal passing through region 102, and since there is no insulation layer 4 in the film removal region 41, the transmittance of the detection signal passing through region 102 is not interfered with by the insulation layer 4, enabling more accurate and efficient normal operation of the sensor.

[0038] As shown in Figure 2, in the laminated insulated glass 100, the overlapping region of the laminated insulated glass 100 covers region 101. That is, region 101 is the region in the laminated insulated glass 100 that is simultaneously covered by the insulation layer 4 and the infrared transmission enhancement layer 5. When the driver and passengers inside the vehicle observe the external environment through region 101, the insulation layer 4 can significantly reduce the total solar radiation transmittance to 50% or less, thereby improving the thermal comfort inside the vehicle. At the same time, the infrared transmission enhancement layer 5 can further reduce the visible light reflectance of the fourth surface of region 101 and improve the reflected color on the first surface of region 101, so that the insulation layer 4 with superior performance can be selected for the laminated insulated glass 100.

[0039] In the laminated heat-insulating glass 100 according to the present invention, the infrared transmission enhancement layer 5 and the heat-insulating layer 4 are not located on the same glass surface, and can be plated on different glass surfaces or organic resin films, resulting in good overall appearance consistency. By only partially removing the film from the heat-insulating layer so that the film removal area corresponds to the signal transmission area of ​​a laser radar or infrared camera, it is not necessary to remove the film from the infrared transmission enhancement layer, making the process simple and easy.

[0040] Preferably, the orthographic projection of the infrared transmission-enhancing layer 5 on the first surface occupies 70% or more of the area of ​​the first surface, the orthographic projection of the heat insulating layer 4 on the first surface occupies 70% or more of the area of ​​the first surface, and the overlapping region occupies at least 80% or more of the orthographic projection of the heat insulating layer 4 on the first surface. As shown in Figure 2, the area occupied by the film removal region 41 in the heat insulating layer 4 is less than 20%, and the film removal region 41 of the heat insulating layer is covered only by the infrared transmission-enhancing layer 5.

[0041] The infrared transmission enhancement layer 5 includes a first high refractive index layer, a first low refractive index layer, a second high refractive index layer, and a second low refractive index layer that are separated in order from the glass surface, wherein the physical thickness of the first high refractive index layer is greater than the physical thickness of the first low refractive index layer, and the physical thickness of the second high refractive index layer is greater than the physical thickness of the second low refractive index layer. By designing the infrared transmission enhancement layer 5 to have a four-layer structure, the present invention can improve the transmittance of the detection signal passing through region 102, further reduce the visible light reflectance of the fourth surface of region 101, improve the reflected color of the first surface of region 101, and enable better use in combination with the heat insulating layer 4.

[0042] Here, the refractive index of the first high refractive index layer is 1.8 to 2.7, and the physical thickness of the first high refractive index layer is 110 nm to 160 nm, for example 110 nm, 120 nm, 130 nm, 140 nm, 150 nm, 160 nm, and more preferably 120 nm to 150 nm. Preferably, the refractive index of the first low refractive index layer is 1.3 to 1.7, and the physical thickness of the first low refractive index layer is 5 nm to 50 nm, for example 5 nm, 10 nm, 15 nm, 20 nm, 25 nm, 30 nm, 35 nm, 40 nm, 45 nm, 50 nm, and more preferably 15 nm to 35 nm. Preferably, the refractive index of the second high refractive index layer is 1.8 to 2.7, and the physical thickness of the second high refractive index layer is 100 nm to 160 nm, for example 100 nm, 110 nm, 120 nm, 130 nm, 140 nm, 150 nm, 160 nm, and more preferably 100 nm to 140 nm. Preferably, the refractive index of the second low refractive index layer is 1.3 to 1.7, and the physical thickness of the second low refractive index layer is 55 nm to 110 nm, for example 55 nm, 60 nm, 65 nm, 70 nm, 75 nm, 80 nm, 85 nm, 90 nm, 95 nm, 100 nm, 110 nm, and more preferably 60 nm to 90 nm. The refractive index is the refractive index at a wavelength of 550 nm.

[0043] Here, the difference between the physical thickness of the first high refractive index layer and the physical thickness of the first low refractive index layer is 50 nm or more. That is, the difference between the physical thickness of the first high refractive index layer and the physical thickness of the first low refractive index layer is 50 nm or more, preferably 80 nm or more, and more preferably 100 nm or more. The difference between the physical thickness of the second high refractive index layer and the physical thickness of the second low refractive index layer is 30 nm or more. That is, the difference between the physical thickness of the second high refractive index layer and the physical thickness of the second low refractive index layer is 30 nm or more, preferably 40 nm or more, and more preferably 45 nm or more.

[0044] Specifically, the material for the first high refractive index layer and the second high refractive index layer is an oxide, nitride, or oxynitride of at least one element selected from Zn, Sn, Ti, Nb, Zr, Ni, In, Al, Ce, W, Mo, Sb, Bi, Si, Hf, Ta, Y, Ce, and La, and the material for the first low refractive index layer and the second low refractive index layer is an oxide, oxynitride, or fluoride of at least one element selected from Si, Al, Mg, Ce, La, Y, and Ba.

[0045] In the present invention, the heat insulating layer 4 comprises at least two metallic silver layers, silver alloy layers, or transparent conductive oxide layers. The metallic silver layers, silver alloy layers, or transparent conductive oxide layers have good infrared reflection performance, thereby reducing the total solar radiation transmittance of the laminated heat insulating glass. The material of the silver alloy layer is at least one selected from silver-copper alloy, silver-aluminum alloy, silver-indium alloy, silver-gold alloy, silver-platinum alloy, silver-nickel alloy, silver-chromium alloy, silver-tin alloy, silver-titanium alloy, silver-zirconium alloy, silver-molybdenum alloy, silver-tungsten alloy, silver-manganese alloy, and silver-magnesium alloy. The silver content in the silver alloy layer is preferably 95% or more, more preferably 98% or more. The material of the transparent conductive oxide layer (TCO layer) is at least one selected from tin-doped indium oxide (ITO), fluorine-doped tin oxide (FTO), antimond-doped tin oxide (ATO), aluminum-doped zinc oxide (AZO), indium-doped zinc oxide (IZO), and gallium-doped zinc oxide (GZO). To enable the heat insulating layer 4 to withstand the heat bending and forming process at at least 550°C in automotive glass processing, and to adjust the optical and mechanical properties of the heat insulating layer 4, the heat insulating layer 4 further includes other dielectric layers, such as ZnSnOx, ZnO, SiNx, TiOx, SiOx, ZrOx, NiCr, etc.

[0046] The outer glass plate 1 and / or inner glass plate 2 are ultra-transparent glass (also called white glass). The ultra-transparent glass has a total iron content of 0.015% or less by mass percentage and a visible light transmittance of 91% or more. Preferably, the total iron content of the ultra-transparent glass is 0.01% or less, 0.005% or less, and 0.001% or less by mass percentage. The outer glass plate 1 and inner glass plate 2 do not need to contain substantially iron oxide (Fe2O3). Exemplarily, the outer glass plate 211 and inner glass plate 212 may be soda-lime silica ultra-transparent glass, borosilicate glass, or high-aluminum glass, etc.

[0047] Here, after depositing the infrared transmission-enhancing layer on the surface of the ultratransparent glass by a magnetron sputtering process, the visible light transmittance TL10 of the ultratransparent glass piece provided with the infrared transmission-enhancing layer is 90% or more, and the ultratransparent glass provided with the infrared transmission-enhancing layer has a first near-infrared transmittance Tp1 of 85% or more for P-polarized light at a wavelength of 905 nm incident at an incident angle of 50° to 73°. Preferably, the ultratransparent glass provided with the infrared transmission-enhancing layer has a first near-infrared transmittance Tp1 of 905 nm P-polarized light at an incident angle of 55° to 70° that is greater than the visible light transmittance TL10 of the piece. Preferably, the ultratransparent glass provided with the infrared transmission-enhancing layer has a first near-infrared transmittance Tp1 for P-polarized light of 905 nm incident at an incident angle of 50° to 73°, with a maximum value Tp1max and a minimum value Tp1min, and the difference between the maximum value Tp1max and the minimum value Tp1min is less than 10%.

[0048] The thermoplastic intermediate layer 3 is interposed between the outer glass plate 1 and the inner glass plate 2 to bond the outer glass plate 1 and the inner glass plate 2 together and form a laminated glass structure. Suitable materials for the intermediate layer include, for example, polyvinyl butyral (PVB), ethylene vinyl acetate (EVA), polyethylene terephthalate (PET), polyurethane (PU), and ionic polymer film (SGP). The thermoplastic intermediate layer may be a single layer or may consist of at least two layers. For example, one of the layers may have a higher plasticizer content to provide sound insulation, or one of the layers may be wedge-shaped to provide a head-up display (HUD) function.

[0049] In order to meet the national standard that automotive glass has a visible light transmittance of 70% or more and to ensure that no back shadows are cast on the inside of the vehicle, preferably the first visible light transmittance TL1 of the laminated heat-insulating glass is 85% or more, the second visible light transmittance TL2 is 70% or more, the visible light reflectance RL4 of the fourth surface is 10% or less, more preferably the visible light reflectance RL4 of the fourth surface is 9% or less, and furthermore the visible light reflectance RL4 of the fourth surface is 8% or less. In order for the laminated insulated glass to have excellent thermal insulation performance and to significantly improve thermal comfort inside the vehicle, the total solar radiation transmittance Tts of the laminated insulated glass is preferably 50% or less, and more preferably 40% or less.

[0050] To meet the requirements for using sensors such as laser radars with P polarization at a wavelength of 905 nm and to ensure the accuracy and efficiency of wide-angle detection of the sensor, preferably, the laminated insulated glass has a second near-infrared transmittance Tp2 of 80% or more for P-polarized light at a wavelength of 905 nm incident at an incident angle of 50° to 73°, and a second near-infrared transmittance Tp2 of 905 nm incident at an incident angle of 55° to 65°.

[0051] In order for the laminated insulated glass to have a good appearance color, preferably the reflective hue of the first surface of the laminated insulated glass has an a value of -5 to 2 and a b value of -12 to 0 in the Lab system.

[0052] The present invention further provides a vehicle comprising a sensor mounted inside the vehicle and the laminated heat-insulating glass. Exemplarily, the laminated heat-insulating glass may be used as a windshield or the like. A detection signal with a wavelength of 905 nm transmitted and / or received by the sensor passes through the film removal region. Preferably, the detection signal is incident on the film removal region at an incident angle of 50° to 73° and contains at least 80% P-polarization.

[0053] The laminated heat-insulating glass of the present invention can meet the communication needs of high-sensitivity communication sensors such as laser radar and infrared cameras in automotive applications. By meeting the heat insulation needs, the total transmittance of solar energy of the laminated heat-insulating glass does not exceed 50%, and the reflectivity of visible light on the fourth surface is low, further reducing the impact of glare on the driver inside the vehicle when used as vehicle glass. At the same time, it meets the usage requirement that the attenuation of signals transmitted through the laminated heat-insulating glass from laser radar or infrared cameras is 3 dB or less, ensuring the normal operation of the laser radar or infrared camera, improving the accuracy of use of the laser radar or infrared camera, and significantly reducing the energy consumption of the air conditioner, thereby improving the comfort of the driver and passengers. Furthermore, since the laminated heat-insulating glass of the present invention employs a process of removing only the entire plating film and the heat-insulating layer locally, the process is simple and the appearance of the entire film layer is consistent.

[0054] The present invention will be described in more detail below with reference to specific examples. Several different film layer structures were selected and compared in the following tests. Those skilled in the art should understand that the examples described below are illustrative and not limiting, and do not restrict the scope of protection of the present invention.

[0055] (Examples) Comparative Examples 1-5 and Examples 1-3 Comparative Example 1 A single sheet of ultra-transparent glass with a thickness of 2.1 mm was prepared, and no film layer was deposited on the surface of the ultra-transparent glass of Comparative Example 1.

[0056] Comparative Example 2 A single sheet of ultra-transparent glass with a thickness of 2.1 mm was prepared, and after undergoing processes such as washing and drying, it was moved to a magnetron sputtering coating line where an infrared transmission enhancement layer was deposited on one of the surfaces of the ultra-transparent glass. The infrared transmission enhancement layer has a four-layer structure consisting of a 20 nm thick TiOx high refractive index layer, a 50 nm thick SiOx low refractive index layer, a 25 nm thick TiOx high refractive index layer, and a 73 nm thick SiOx low refractive index layer, which are sequentially deposited on the glass surface.

[0057] Comparative Example 3 A single sheet of ultra-transparent glass with a thickness of 2.1 mm was prepared, and after undergoing processes such as washing and drying, it was moved to a magnetron sputtering coating line where an infrared transmission enhancement layer was deposited on one of the surfaces of the ultra-transparent glass. The infrared transmission enhancement layer has a six-layer structure consisting of a 15 nm thick TiOx high refractive index layer, a 60 nm thick SiOx low refractive index layer, a 40 nm thick TiOx high refractive index layer, an 18 nm thick SiOx low refractive index layer, a 28 nm thick TiOx high refractive index layer, and a 28 nm thick SiOx low refractive index layer.

[0058] Comparative Example 4 A single sheet of ultra-transparent glass with a thickness of 2.1 mm was prepared, and after undergoing processes such as washing and drying, it was moved to a magnetron sputtering coating line where an infrared transmission enhancement layer was deposited on one of the surfaces of the ultra-transparent glass. The infrared transmission enhancement layer has a four-layer structure consisting of a 100 nm thick TiOx high refractive index layer, a 65 nm thick SiOx low refractive index layer, a 120 nm thick TiOx high refractive index layer, and a 75 nm thick SiOx low refractive index layer, which are sequentially deposited on the glass surface.

[0059] Comparative Example 5 A single sheet of ultra-transparent glass with a thickness of 2.1 mm was prepared, and after undergoing processes such as washing and drying, it was moved to a magnetron sputtering coating line where an infrared transmission enhancement layer was deposited on one of the surfaces of the ultra-transparent glass. The infrared transmission enhancement layer has a four-layer structure consisting of a 120 nm thick TiOx high refractive index layer, a 15 nm thick SiOx low refractive index layer, a 95 nm thick TiOx high refractive index layer, and a 75 nm thick SiOx low refractive index layer, which are sequentially deposited on the glass surface.

[0060] Example 1 A single sheet of ultra-transparent glass with a thickness of 2.1 mm was prepared, and after undergoing processes such as washing and drying, it was moved to a magnetron sputtering coating line where an infrared transmission enhancement layer was deposited on one of the surfaces of the ultra-transparent glass. The infrared transmission enhancement layer has a four-layer structure consisting of a 150 nm thick TiOx high refractive index layer, a 23 nm thick SiOx low refractive index layer, a 120 nm thick TiOx high refractive index layer, and a 75 nm thick SiOx low refractive index layer, which are sequentially deposited on the glass surface.

[0061] Example 2 A single sheet of ultra-transparent glass with a thickness of 2.1 mm was prepared, and after undergoing processes such as washing and drying, it was moved to a magnetron sputtering coating line where an infrared transmission enhancement layer was deposited on one of the surfaces of the ultra-transparent glass. The infrared transmission enhancement layer has a four-layer structure consisting of a 120 nm thick TiOx high refractive index layer, a 15 nm thick SiOx low refractive index layer, a 140 nm thick TiOx high refractive index layer, and a 65 nm thick SiOx low refractive index layer, which are sequentially deposited on the glass surface.

[0062] Example 3 A single sheet of ultra-transparent glass with a thickness of 2.1 mm was prepared, and after undergoing processes such as washing and drying, it was moved to a magnetron sputtering coating line where an infrared transmission enhancement layer was deposited on one of the surfaces of the ultra-transparent glass. The infrared transmission enhancement layer has a four-layer structure consisting of a 130 nm thick TiOx high refractive index layer, a 30 nm thick SiOx low refractive index layer, a 130 nm thick TiOx high refractive index layer, and a 75 nm thick SiOx low refractive index layer, which are sequentially deposited on the glass surface.

[0063] Performance Test Optical performance tests were conducted on the ultra-transparent glass of Comparative Example 1 and the ultra-transparent glass with infrared transmission-enhancing layers of Comparative Examples 2-4. The test results are shown in Table 1.

[0064] The visible light transmittance of individual pieces (TL10) was measured and calculated according to ISO 9050 in the wavelength range of 380 nm to 780 nm.

[0065] The first near-infrared transmittance Tp1 was calculated by measuring the transmittance of ultratransparent glass equipped with an infrared transmission-enhancing layer for P-polarized light at a wavelength of 905 nm, incident at different incident angles, according to ISO 9050. The transmittances for incident angles of 50°, 55°, 60°, 65°, 70°, and 73° were recorded.

[0066] Table 1 shows the test results for Comparative Examples 1-5 and Examples 1-3.

[0067] [Table 1]

[0068] Optical performance tests were performed on the ultra-transparent glass provided with the infrared transmission-enhancing layers of Comparative Example 5 and Examples 1-3. The test results are shown in Table 2.

[0069] Table 2 shows the test results for Comparative Example 5 and Examples 1-3.

[0070] [Table 2]

[0071] As can be seen from Tables 1 and 2, Comparative Example 1 used individual ultra-transparent glass plates without an infrared anti-reflective layer, and its visible light transmittance exceeded 91%. However, the transmittance for P-polarized light at a wavelength of 905 nm incident at an incident angle of 50° to 73° dropped sharply from over 95% to under 85%. In particular, in Comparative Example 1, the first near-infrared transmittance Tp1 for P-polarized light at a wavelength of 905 nm incident at an incident angle of 70° was smaller than the visible light transmittance TL10 of the individual plate. Furthermore, in Comparative Example 1, the first near-infrared transmittance Tp1 for P-polarized light at a wavelength of 905 nm incident at an incident angle of 50° to 73° had a maximum value Tp1max and a minimum value Tp1min, and the difference between the maximum value Tp1max and the minimum value Tp1min was greater than 10%.

[0072] Comparative Examples 2 and 4 were both ultratransparent glass equipped with a four-layer infrared transmission-enhancing layer. In both cases, the transmittance for P-polarized light at a wavelength of 905 nm incident at incident angles of 50° to 73° was maintained at 85% or higher, but the visible light transmittance rapidly decreased to 90% or lower, and then to 85% or lower.

[0073] Comparative Example 3 was an ultra-transparent glass equipped with a six-layer infrared transmission-enhancing layer. While the transmittance for P-polarized light at a wavelength of 905 nm incident at incident angles of 50° to 73° was maintained at 85% or higher, its visible light transmittance dropped sharply to below 90%. Furthermore, the six-layer infrared transmission-enhancing layer has a more complex manufacturing process and higher manufacturing costs than the four-layer infrared transmission-enhancing layer.

[0074] Comparative Example 5 was an ultra-transparent glass with a four-layer infrared anti-reflective layer. Its visible light transmittance was greater than 90%, but its transmittance for P-polarized light at a wavelength of 905 nm, incident at an incident angle of 50° to 73°, dropped sharply from over 95% to under 85%. In particular, the first near-infrared transmittance Tp1 for P-polarized light at a wavelength of 905 nm, incident at an incident angle of 70°, was smaller than the visible light transmittance TL10 of the individual piece. Furthermore, the first near-infrared transmittance Tp1 for P-polarized light at a wavelength of 905 nm, incident at an incident angle of 50° to 73°, had a maximum value Tp1max and a minimum value Tp1min, with the difference between the maximum value Tp1max and the minimum value Tp1min being greater than 10%.

[0075] In Examples 1-3, compared to Comparative Examples 1-5, the visible light transmittance TL10 of individual pieces of ultra-transparent glass equipped with the four-layer infrared transmission-enhancing layer was greater than 90%, and the first near-infrared transmittance Tp1 for P-polarized light at a wavelength of 905 nm incident at an incident angle of 50° to 73° was greater than 85%. Furthermore, the ultra-transparent glass equipped with the four-layer infrared transmission-enhancing layer according to Examples 1-3 had a first near-infrared transmittance Tp1 for P-polarized light at a wavelength of 905 nm incident at an incident angle of 55° to 70° that was greater than its visible light transmittance TL10. Specifically, in the ultra-transparent glass provided with the four-layer infrared transmission-enhancing layer according to Examples 1-3, the difference between the first near-infrared transmittance Tp1 and the visible light transmittance TL10 for P-polarized light at a wavelength of 905 nm incident at an incident angle of 60° was 2.55% to 6.38%, i.e., 2.55% ≤ (Tp1 - 60°) - TL10 ≤ 6.38%. In the ultra-transparent glass provided with the four-layer infrared transmission-enhancing layer according to Examples 1-3, the first near-infrared transmittance Tp1 for P-polarized light at a wavelength of 905 nm incident at an incident angle of 50° to 73° had a maximum value Tp1max and a minimum value Tp1min, and the difference between the maximum value Tp1max and the minimum value Tp1min was less than 10%, i.e., Tp1max - Tp1min was less than 10%. This ensures that the variation in the first near-infrared transmittance Tp1 of P-polarized light at a wavelength of 905 nm incident at different incident angles is small, improving the stability and quality of point cloud data acquisition when used in combination with a laser radar. Specifically, the ultra-transparent glass provided with a four-layer infrared transmission-enhancing layer according to Examples 1 to 3 had a first near-infrared transmittance Tp1 for P-polarized light at a wavelength of 905 nm incident at incident angles of 55° to 70°, with a maximum value Tp1max and a minimum value Tp1min, and the difference between the maximum value Tp1max and the minimum value Tp1min was 3.07% to 4.85%, i.e., 3.07% ≤ Tp1max - Tp1min ≤ 4.85%.

[0076] Comparative Examples 6-9 and Examples 4-9 Comparative Example 6 A single sheet of ultra-transparent glass with a thickness of 2.1 mm was prepared, and after processes such as washing and drying, it was moved to a magnetron sputtering coating line where an insulating layer was deposited on one of the surfaces of the ultra-transparent glass. The insulating layer was a double silver film layer in which a 22 nm thick ZnSnOx layer, a 10 nm thick AZO layer, an 11 nm thick Ag layer, a 5 nm thick TiOx layer, a 55 nm thick ZnSnOx layer, a 15 nm thick AZO layer, a 12.5 nm thick Ag layer, a 5 nm thick TiOx layer, a 20 nm thick ZnSnOx layer, and a 15 nm thick SiNx layer were sequentially deposited on the glass surface.

[0077] Laser film removal was performed on ultra-transparent glass in which an insulating layer had been deposited to form a film removal region. Since there was no insulating layer within the film removal region, the detection signal transmitted and / or received by the sensor was able to pass through the film removal region.

[0078] One sheet of ultra-transparent glass provided with an infrared transmission-enhancing layer, as in Comparative Example 2, was prepared. Both the ultra-transparent glass provided with a heat-insulating layer and the ultra-transparent glass provided with an infrared transmission-enhancing layer were subjected to a heat bending treatment at at least 550°C.

[0079] One sheet of transparent PVB was prepared. An ultra-transparent glass with an insulating layer after heat bending was used as the outer glass plate, and an ultra-transparent glass with an infrared transmission-enhancing layer after heat bending was used as the inner glass plate. The insulating layer was positioned on the second surface of the outer glass plate, and the infrared transmission-enhancing layer was positioned on the fourth surface of the inner glass plate. A laminated insulating glass with locally high infrared transmission, as shown in Comparative Example 6, was manufactured according to the manufacturing process for automotive glass.

[0080] Comparative Example 7 The only difference between Comparative Example 7 and Comparative Example 6 is that Comparative Example 7 uses one sheet of ultra-transparent glass with the infrared transmission-enhancing layer found in Comparative Example 3.

[0081] Example 4 The only difference between Example 4 and Comparative Example 6 is that one sheet of ultra-transparent glass with the infrared transmission-enhancing layer used in Example 1 was prepared.

[0082] Example 5 The only difference between Example 4 and Comparative Example 6 is that one sheet of ultra-transparent glass with the infrared transmission-enhancing layer used in Example 2 was prepared.

[0083] Example 6 The only difference between Example 4 and Comparative Example 6 is that one sheet of ultra-transparent glass with the infrared transmission-enhancing layer used in Example 3 was prepared.

[0084] Comparative Example 8 The differences between Comparative Example 8 and Comparative Example 6 are as follows:

[0085] The insulating layer was a triple silver film layer in which a 25nm thick ZnSnOx layer, a 10nm thick AZO layer, a 13nm thick Ag layer, a 5nm thick TiOx layer, a 50nm thick ZnSnOx layer, a 15nm thick AZO layer, a 14.5nm thick Ag layer, a 5nm thick TiOx layer, a 48nm thick ZnSnOx layer, a 15nm thick AZO layer, a 12.5nm thick Ag layer, a 5nm thick TiOx layer, a 20nm thick ZnSnOx layer, and a 15nm thick SiNx layer were sequentially deposited on the glass surface.

[0086] One sheet of ultra-transparent glass with an infrared transmission-enhancing layer, as in Comparative Example 4, was prepared.

[0087] Comparative Example 9 The only difference between Comparative Example 10 and Comparative Example 8 is that Comparative Example 10 uses one sheet of ultra-transparent glass with the infrared transmission-enhancing layer found in Comparative Example 5.

[0088] Example 7 The only difference between Example 7 and Comparative Example 8 is that one sheet of ultra-transparent glass with the infrared transmission-enhancing layer used in Example 1 was prepared.

[0089] Example 8 The only difference between Example 8 and Comparative Example 8 is that one sheet of ultra-transparent glass with the infrared transmission-enhancing layer used in Example 2 was prepared.

[0090] Example 9 The only difference between Example 9 and Comparative Example 8 is that one sheet of ultra-transparent glass with the infrared transmission-enhancing layer used in Example 3 was prepared.

[0091] Performance Test Performance tests were conducted on the laminated insulated glass of Comparative Examples 6-7 and Examples 4-6. The test results are shown in Table 3.

[0092] First visible light transmittance TL1: The transmittance of visible light in the wavelength range of 380 nm to 780 nm in the film removal region of laminated insulated glass was measured and calculated according to ISO 9050.

[0093] Secondary visible light transmittance TL2: The transmittance of visible light in the overlapping region of laminated insulated glass in the wavelength range of 380 nm to 780 nm was measured and calculated according to ISO 9050.

[0094] Total solar transmittance Tts: The total solar transmittance in the overlapping region of laminated insulated glass in the wavelength range of 300 nm to 2500 nm was measured and calculated according to ISO 9050.

[0095] Visible light reflectance of the fourth surface RL4: The reflectance for visible light in the wavelength range of 380 nm to 780 nm incident from the fourth surface side in the overlapping region of laminated insulated glass was measured and calculated according to ISO9050.

[0096] Second near-infrared transmittance Tp2: The transmittance for P-polarized light at a wavelength of 905 nm, incident at different incident angles, was measured and calculated according to ISO 9050 in the film-removed region of laminated insulated glass. The transmittances for incident angles of 50°, 55°, 60°, 65°, 70°, and 73° were recorded.

[0097] Reflected Hue of the First Surface (Lab): Measured from the first surface side. Calculated according to the CIE Lab color model, based on a D65 light source and a 10° viewing angle at a 65° incidence angle. a values ​​represent red-green values, and b values ​​represent yellow-blue values.

[0098] Table 3 shows the test results for Comparative Examples 6-7 and Examples 4-6.

[0099] [Table 3]

[0100] Performance tests were conducted on the ultra-transparent glass provided with the infrared transmission-enhancing layers of Comparative Examples 8-9 and Examples 7-9. The test results are shown in Table 4.

[0101] Table 4 shows the test results for Comparative Examples 8-9 and Examples 7-9.

[0102] [Table 4]

[0103] As can be seen from Tables 3 and 4, Comparative Example 6 uses the ultra-transparent glass with the infrared transmission reinforcement layer of Comparative Example 2 as the inner glass plate. Its second visible light transmittance TL2 is less than 70%, and the visible light reflectance RL4 of the fourth surface is greater than 10%. Not only does it fail to meet the national standard that automotive glass must have a visible light transmittance of 70% or more, but it also has the problem of excessively high visible light reflectance inside the car, which easily causes reflections and interferes with driving safety.

[0104] Comparative Example 7 uses the ultra-transparent glass with the infrared transmission-enhancing layer from Comparative Example 3 as the inner glass plate. The visible light reflectance RL4 of its fourth surface is greater than 10%, resulting in excessively high visible light reflectance inside the vehicle, which easily causes reflections and poses a problem that interferes with driving safety.

[0105] Comparative Example 8 uses the ultra-transparent glass with the infrared transmission-enhancing layer of Comparative Example 4 as the inner glass plate. Its second visible light transmittance TL2 is less than 70%, and the visible light reflectance RL4 of the fourth surface is greater than 10%. This not only fails to meet the national standard that automotive glass must have a visible light transmittance of 70% or more, but it also has the problem of excessively high visible light reflectance inside the car, which easily causes reflections and interferes with driving safety. Furthermore, because the b value in the reflective hue Lab of the first surface of Comparative Example 8 is greater than 2, there is a problem that the laminated heat-insulating glass of Comparative Example 8 appears yellowish when viewed from outside the car, making it difficult to meet the requirement for a good appearance color.

[0106] Comparative Example 9 uses the ultra-transparent glass with the infrared transmission-enhancing layer from Comparative Example 5 as the inner glass plate. The visible light reflectance RL4 of its fourth surface is greater than 10%, resulting in excessively high visible light reflectance inside the vehicle, which easily causes reflections and interferes with driving safety. Furthermore, the a value of Lab in the reflection hue Lab of the first surface of Comparative Example 9 is greater than 2, the b value is greater than 2, and the a value is greater than 10. As a result, when observing the laminated heat-insulating glass of Comparative Example 9 from outside the vehicle, the color is strongly biased towards red and yellow, making it difficult to meet the requirement for a good appearance color.

[0107] The laminated heat-insulating glass according to Examples 4-9 achieves a first visible light transmittance TL1 of 85% or more, a second visible light transmittance TL2 of 70% or more, and a visible light reflectance RL4 of the fourth surface of 10% or less, compared to Comparative Examples 6-9. This satisfies the national standard that automotive glass must have a visible light transmittance of 70% or more, and ensures that no reflection occurs on the interior of the vehicle. The laminated heat-insulating glass according to Examples 4-9 can achieve a total solar radiation transmittance Tts of 50% or less, and even 40% or less, possessing excellent heat insulation performance and significantly improving thermal comfort inside the vehicle. The laminated insulated glass according to Examples 4 to 9 can achieve a second near-infrared transmittance Tp2 of 80% or more for P-polarized light at a wavelength of 905 nm incident at an incident angle of 50° to 73°, and further, a second near-infrared transmittance Tp2 of 905 nm incident at an incident angle of 55° to 65° can achieve a second near-infrared transmittance Tp2 of 905 nm incident at an incident angle of 55° to 65°, thereby meeting the requirements for the use of sensors such as laser radars with P-polarized light at a wavelength of 905 nm and guaranteeing the accuracy and efficiency of detection across a wide field of view of the sensor. Specifically, the laminated insulated glass according to Examples 4 to 9 has a second near-infrared transmittance Tp2 of 905 nm incident at an incident angle of 55° to 70°, with a maximum value Tp2max and a minimum value Tp2min, and the difference between the maximum value Tp2max and the minimum value Tp2min is 3.67% to 4.50%, i.e., 3.67% ≤ Tp2max - Tp2min ≤ 4.50%. Specifically, in the laminated heat-insulating glass according to Examples 4 to 9, the difference between the second near-infrared transmittance Tp2 and the first visible light transmittance TL1 for P-polarized light at a wavelength of 905 nm incident at an incident angle of 60° was 6.63% to 7.32%, i.e., 6.63% ≤ (Tp2 - 60°) - TL1 ≤ 7.32%.

[0108] The laminated heat-insulating glass according to Examples 4 to 9 achieves an a value of -5 to 2 and a b value of -12 to 0 in the reflective hue Lab of the first surface, and has a good appearance color.

[0109] The above embodiments of the present invention are merely examples to illustrate the present invention clearly and do not limit its embodiments. Those skilled in the art can make other different forms of changes or modifications based on the above description, and not all embodiments can be covered herein. Any obvious changes or modifications extracted by the technical proposal of the present invention are within the scope of protection of the present invention. [Explanation of Symbols]

[0110] 1. Outer glass panel 2. Inner glass plate 3 Thermoplastic Interlayer 11 1st surface 12 Second surface 21 Third surface 22 4th surface 4. Insulation layer 41 Film removal area 5 Infrared transmission enhancement layer 100 Laminated Insulated Glass 101 Region in laminated insulated glass where the insulation layer and the infrared transmission enhancement layer are simultaneously coated. 102 Areas in laminated insulated glass where only the infrared transmission enhancement layer is applied.

Claims

1. Laminated insulated glass with locally high infrared transmission, It includes an outer glass plate having a first surface and a second surface, an inner glass plate having a third surface and a fourth surface, and a thermoplastic intermediate layer interposed between the second surface and the third surface. It further includes an infrared transmission-enhancing layer and an insulating layer, The infrared transmission enhancement layer and the heat insulating layer are not located on the same glass surface. The orthographic projection on the first surface of the infrared transmission-enhancing layer and the orthographic projection on the first surface of the heat-insulating layer have an overlapping region. The aforementioned heat insulating layer is provided with a film removal region. The orthographic projection of the infrared transmission-enhancing layer in the heat insulating layer covers the film removal region. Laminated insulated glass characterized by the following features.

2. The orthographic projection on the first surface of the infrared transmission-enhanced layer occupies 70% or more of the area of ​​the first surface. The orthographic projection on the first surface of the thermal insulation layer occupies 70% or more of the area of ​​the first surface. The overlapping region occupies 80% or more of the orthographic projection on the first surface of the thermal insulation layer. The laminated heat-insulating glass according to claim 1, characterized in that...

3. The infrared transmission enhancement layer includes a first high refractive index layer, a first low refractive index layer, a second high refractive index layer, and a second low refractive index layer, which are separated in order from the glass surface. The physical thickness of the first high refractive index layer is greater than the physical thickness of the first low refractive index layer, and the physical thickness of the second high refractive index layer is greater than the physical thickness of the second low refractive index layer. The laminated heat-insulating glass according to claim 1, characterized in that...

4. The refractive index of the first high refractive index layer is 1.8 to 2.7, the physical thickness of the first high refractive index layer is 110 nm to 160 nm, the refractive index of the first low refractive index layer is 1.3 to 1.7, and the physical thickness of the first low refractive index layer is 5 nm to 50 nm. The refractive index of the second high refractive index layer is 1.8 to 2.7, the physical thickness of the second high refractive index layer is 100 nm to 160 nm, the refractive index of the second low refractive index layer is 1.3 to 1.7, and the physical thickness of the second low refractive index layer is 55 nm to 110 nm. The laminated heat-insulating glass according to claim 3, characterized in that...

5. The difference between the physical thickness of the first high refractive index layer and the physical thickness of the first low refractive index layer is 50 nm or more, and the difference between the physical thickness of the second high refractive index layer and the physical thickness of the second low refractive index layer is 30 nm or more. The laminated heat-insulating glass according to claim 3, characterized in that...

6. The difference between the physical thickness of the first high refractive index layer and the physical thickness of the first low refractive index layer is 100 nm or more, and the difference between the physical thickness of the second high refractive index layer and the physical thickness of the second low refractive index layer is 40 nm or more. The laminated heat-insulating glass according to claim 3, characterized in that...

7. The material for the first high refractive index layer and the second high refractive index layer is an oxide, nitride, or oxynitride of at least one element selected from Zn, Sn, Ti, Nb, Zr, Ni, In, Al, Ce, W, Mo, Sb, Bi, Si, Hf, Ta, Y, Ce, La. The materials for the first low refractive index layer and the second low refractive index layer are oxides, oxynitrides, or fluorides of at least one element selected from Si, Al, Mg, Ce, La, Y, and Ba. The laminated heat-insulating glass according to claim 3, characterized in that...

8. The aforementioned heat insulating layer includes at least two metallic silver layers, silver alloy layers, or transparent conductive oxide layers. The material of the silver alloy layer is at least one selected from silver-copper alloy, silver-aluminum alloy, silver-indium alloy, silver-gold alloy, silver-platinum alloy, silver-nickel alloy, silver-chromium alloy, silver-tin alloy, silver-titanium alloy, silver-zirconium alloy, silver-molybdenum alloy, silver-tungsten alloy, silver-manganese alloy, and silver-magnesium alloy. The material of the transparent conductive oxide layer is at least one selected from tin-doped indium oxide, fluorine-doped tin oxide, antimond-doped tin oxide, aluminum-doped zinc oxide, indium-doped zinc oxide, and gallium-doped zinc oxide. The laminated heat-insulating glass according to claim 1, characterized in that...

9. The outer glass plate and / or inner glass plate are made of ultra-transparent glass. The total iron content of the aforementioned ultra-transparent glass is 0.015% or less by mass percentage. The visible light transmittance of the aforementioned ultratransparent glass is 91% or higher. The laminated heat-insulating glass according to claim 1, characterized in that...

10. The visible light transmittance TL10 of the ultratransparent glass piece provided with the infrared transmission-enhancing layer is 90% or more. The ultratransparent glass provided with the aforementioned infrared transmission-enhancing layer has a first near-infrared transmittance Tp1 of 85% or more for P-polarized light with a wavelength of 905 nm incident at an incident angle of 50° to 73°. The laminated heat-insulating glass according to claim 9, characterized in that...

11. The ultratransparent glass provided with the infrared transmission-enhancing layer has a first near-infrared transmittance Tp1 for P-polarized light of 905 nm incident at an incident angle of 55° to 70° that is greater than the visible light transmittance TL10 of the individual piece. The laminated heat-insulating glass according to claim 10, characterized in that...

12. The ultratransparent glass provided with the infrared transmission-enhancing layer has a first near-infrared transmittance Tp1 for P-polarized light with a wavelength of 905 nm incident at an incident angle of 50° to 73°, with a maximum value Tp1max and a minimum value Tp1min, and the difference between the maximum value Tp1max and the minimum value Tp1min is less than 10%. The laminated heat-insulating glass according to claim 10, characterized in that...

13. The first visible light transmittance TL1 is 85% or higher, the second visible light transmittance TL2 is 70% or higher, and the visible light reflectance RL4 of the fourth surface is 10% or lower. The laminated heat-insulating glass according to claim 1, characterized in that...

14. The laminated insulated glass according to claim 1, characterized in that the total solar radiation transmittance Tts is 50% or less.

15. The second near-infrared transmittance Tp2 of the laminated insulating glass for P-polarized light with a wavelength of 905 nm incident at an incident angle of 50° to 73° is 80% or more. The second near-infrared transmittance Tp2 of the laminated insulating glass for P-polarized light with a wavelength of 905 nm incident at an incident angle of 55° to 65° is 90% or more. The laminated heat-insulating glass according to claim 1, characterized in that...

16. The reflective hue of the first surface of the laminated insulated glass is such that the a value is -5 to 2 and the b value is -12 to 0 in the Lab system. The laminated heat-insulating glass according to claim 1, characterized in that...

17. The ultratransparent glass provided with the infrared transmission-enhancing layer has a difference of 2.55% to 6.38% between the first near-infrared transmittance Tp1 and the visible light transmittance TL10 for P-polarized light with a wavelength of 905 nm incident at an incident angle of 60°. The laminated heat-insulating glass according to claim 10, characterized in that...

18. The ultratransparent glass provided with the infrared transmission enhancement layer has a first near-infrared transmittance Tp1 for P-polarized light with a wavelength of 905 nm incident at an incident angle of 55° to 70°, with a maximum value Tp1max and a minimum value Tp1min, and the difference between the maximum value Tp1max and the minimum value Tp1min is 3.07% to 4.85%. The laminated heat-insulating glass according to claim 10, characterized in that...

19. For P-polarized light of 905 nm incident at an incident angle of 55° to 70°, the second near-infrared transmittance Tp2 of the laminated insulating glass has a maximum value Tp2max and a minimum value Tp2min, and the difference between the maximum value Tp2max and the minimum value Tp2min is 3.67% to 4.50%. The laminated heat-insulating glass according to claim 15, characterized in that...

20. The difference between the second near-infrared transmittance Tp2 and the first visible light transmittance TL1 of the laminated insulating glass for P-polarized light of 905 nm incident at an incident angle of 60° is 6.63% to 7.32%. The laminated heat-insulating glass according to claim 15, characterized in that...

21. The sensor and the laminated heat-insulating glass according to any one of claims 1 to 20, The aforementioned sensor is installed inside the vehicle. The detection signal with a wavelength of 905 nm transmitted and / or received by the sensor passes through the film removal region. vehicle.

22. The vehicle according to claim 21, characterized in that the detection signal is incident on the film removal region at an incident angle of 50° to 73° and contains at least 80% P-polarized light.

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