Coated glass article

CN116897103BActive Publication Date: 2026-08-11PILKINGTON GRP LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-02-04
Publication Date
2026-08-11

AI Technical Summary

Technical Problem

但是,光学传感器要求增加红外光透射率,因此与常规的玻璃制品构造不完全兼容

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Abstract

A coated glass article and a method for producing the same are disclosed. One or more coatings and layers are applied to or deployed between a pair of glass plates to produce a coated glass article that enhances the accuracy and reliability of a head-up display system and its coupled optical sensors. More specifically, the coated glass article includes an anti-reflective layer and a visible light reflective layer. The anti-reflective layer promotes light transmittance of at least 80% for multiple wavelengths of light passing through the coated glass article, and the visible light reflective layer increases the visible light reflectance of the coated glass article to between 8.0% and 10.0%.
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Description

Technical Field

[0001] The embodiments described herein generally relate to glass articles, and more specifically, to coated glass articles that optimize infrared light transmission and visible light reflection. Background Technology

[0002] Conventional glass products typically consist of either monopane glass or laminated glass. Monopane glass products are composed of a single pane of glass, which can be enhanced in terms of insulation, design improvements, and increased strength through additional processes. Monopane glass products are generally used for architectural skylights and windows. Conversely, laminated glass products typically consist of two panes of glass bonded together by an adhesive interlayer. The adhesive interlayer can be made of certain materials, such as polyvinyl butyral (PVB), ethylene vinyl acetate (EVA), or thermoplastic polyurethane (TPU), which, for example, allow the glass panes to shatter into smaller, less dangerous fragments when a laminated glass product breaks. This advantageous characteristic allows laminated glass products to be used in applications where there is a possibility of human exposure, such as automotive windshields and windows.

[0003] The ability to control light transmission and reflection in glass also makes it suitable for certain applications that require a certain amount of light and / or heat radiation to pass through the glass, as well as light reflection from the glass. One such application is for windshields in motor vehicles.

[0004] Commercial and passenger vehicles are designed with technologies such as head-up display (HUD) systems and sensors to improve safety, road capacity, and fuel efficiency, while reducing pollution, driver stress, and operating costs. HUD systems display information projected onto a glass object (e.g., the vehicle's windshield) that reflects off the vehicle to the driver or observer, providing relevant information without requiring the driver to take their eyes off the road.

[0005] These vehicles are also designed to use a variety of sensors to detect their surroundings, including but not limited to optical sensors such as radar, LIDAR (light detection and ranging), GPS, odometers, and computer vision. Typically, optical sensors are mounted on the inner surface of glass to provide a suitable location for geometric distance estimation, enhanced views of road and traffic conditions, and the controlled environment in which the optical sensors operate. However, optical sensors require increased infrared light transmittance, making them not entirely compatible with conventional glass constructions.

[0006] Currently, existing glass products used as vehicle windshields either provide insufficient infrared light intensity to transmit through the windshield for the proper operation and performance of LIDAR sensors, or when existing glass products are treated, such as with anti-reflective coatings that increase infrared light transmittance for proper LIDAR sensor operation and performance, the visible light reflection of the glass products is insufficient for the proper operation and performance of the HUD system.

[0007] Therefore, it is desirable to produce a glass article comprising at least one coating that optimizes infrared light transmission for proper operation and performance of the optical sensor, while maintaining sufficient visible light reflection for proper operation and performance of the HUD system. Summary of the Invention

[0008] According to and pursuant to this disclosure, a glass article has been unexpectedly discovered comprising at least one coating that optimizes the transmission of infrared light through it for proper operation and performance of an optical sensor, while maintaining sufficient visible light reflection for proper operation and performance of a HUD system.

[0009] In one embodiment, a coated glass article includes: a first glass plate; an anti-reflective layer disposed adjacent to at least a portion of the first glass plate; and a visible light reflective layer disposed on at least a portion of the anti-reflective layer, the visible light reflective layer having a refractive index of at least 1.6 and a thickness of no more than 30 nm, wherein the coated glass article exhibits at least 80% light transmittance for infrared light of at least one wavelength and a visible light reflectance between approximately 8% and 10%.

[0010] In some embodiments, the first glass plate is made of a glass material with generally low light absorption and high light transmittance.

[0011] As an aspect of some embodiments, the glass material has an iron content of less than 100 ppm, preferably 10 ppm or less.

[0012] As an aspect of some embodiments, a second glass plate is also included, wherein the first glass plate and the second glass plate are bonded together by an adhesive layer.

[0013] As an aspect of some embodiments, the adhesive layer includes polyvinyl butyral (PVB), ethylene vinyl acetate (EVA), polyvinyl chloride (PVC), polyurethane (PU), acoustically modified PVB, and At least one layer of at least one of (liquid curable acrylic resins).

[0014] As part of some embodiments, the adhesive layer comprises multiple sheets.

[0015] In some embodiments, the adhesive layer includes a first sheet formed of PVB, a second sheet formed of polyethylene terephthalate (PET), and a third sheet formed of PVB.

[0016] In some embodiments, the second glass plate is made of a glass material with generally low light absorption and high light transmittance.

[0017] As an aspect of some embodiments, this glass material has an iron content of less than 100 ppm, preferably 10 ppm or less.

[0018] As an aspect of some embodiments, the coated glass article further includes at least one reflective layer. This reflective layer may be a sunlight and / or infrared reflective layer.

[0019] As part of some embodiments, at least one reflective layer is deployed adjacent to at least a portion of one of the first plate and the second plate.

[0020] As part of some embodiments, at least one reflective layer is incorporated into a multilayer interlayer.

[0021] As an aspect of some embodiments, the glass article may include a plurality of reflective layers, which are deployed adjacent to at least one of a first glass plate and a second glass plate and incorporated into a multilayer sheet.

[0022] As part of some embodiments, at least one reflective layer comprises a metallic material.

[0023] As part of some embodiments, at least one reflective layer includes at least one void formed therein.

[0024] As part of some embodiments, the anti-reflective layer is formed to cover at least a portion of at least one of the first plate and the second plate.

[0025] As part of some embodiments, each of the first plate and the second plate includes a first main surface and a second main surface, and wherein the anti-reflective layer is deployed adjacent to at least a portion of the second main surface of the second plate.

[0026] As part of some embodiments, the anti-reflective layer has a thickness of at least 80 nm.

[0027] As part of some embodiments, the antireflective layer has a thickness in the range of about 120 nm to about 200 nm.

[0028] In some embodiments, the antireflective layer is formed of silicon dioxide (SiO2).

[0029] As part of some embodiments, the antireflective layer promotes at least 94% light transmittance of at least one wavelength through the coated glass article.

[0030] As part of some embodiments, the at least one wavelength is in the range of about 750 nm to about 1 mm.

[0031] As part of some embodiments, the antireflective layer promotes a desired light transmittance for at least one of a first wavelength and a second wavelength.

[0032] As part of some embodiments, the first wavelength is approximately 905 nm.

[0033] As part of some embodiments, the second wavelength is approximately 1550 nm.

[0034] As an aspect of some embodiments, an optical sensor is also included, which is deployed adjacent to at least one of the anti-reflective layer and the visible light reflective layer, wherein the optical sensor is configured to emit a light beam having at least one wavelength.

[0035] In some embodiments, the optical sensor is positioned to align with a gap formed in at least one reflective layer of the coated glass article.

[0036] As part of some embodiments, a visible light reflective layer is formed as a coating on at least a portion of the glass article.

[0037] As part of some embodiments, the visible light reflective layer has a thickness in the range of approximately 6 nm to approximately 9 nm.

[0038] As part of some embodiments, the visible light reflective layer is a metal oxide with a refractive index of at least 1.6 and less than 1.8 and a thickness of no more than 30 nm.

[0039] As part of some embodiments, the visible light reflective layer is a metal oxide with a refractive index of at least 1.8 and a thickness of no more than 20 nm.

[0040] In some embodiments, the visible light reflective layer is formed of tin oxide (SnO2).

[0041] As part of some embodiments, the visible light reflective layer promotes a visible light reflectance value of approximately 8.6% on the outer surface of the coated glass article and approximately 8.6% on the inner surface of the coated glass article.

[0042] As part of some embodiments, a visible light reflective layer is deployed on at least a portion of an anti-reflective layer in a region of a head-up display (HUD) system.

[0043] As part of some embodiments, the first glass plate and the second glass plate each have a thickness in the range of about 0.7 mm to 12 mm, preferably about 2.2 mm.

[0044] As an aspect of some embodiments, the coated glass article comprises a single glass plate that may have a thickness of approximately 2.3 mm.

[0045] As part of some embodiments, the coated glass article is configured to be used as a car window.

[0046] As part of some embodiments, the coated glass articles are constructed to serve as windows in building structures.

[0047] It should be noted that references to layers or sensors adjacent to plates, surfaces or other layers in this document include references to layers or sensors provided directly on plates, surfaces or other layers.

[0048] It should also be noted that references to layers deployed on glass plates, surfaces or other layers in this article include references to layers deployed directly on plates, surfaces or other layers.

[0049] In another embodiment, a coated glass article includes: a first plate formed of a glass material having an iron oxide (Fe2O3) content of about 100 ppm or less; a second plate formed of a glass material having an iron oxide (Fe2O3) content of about 100 ppm or less; an adhesive layer inserted between the first and second plates to bond the first plate to the second plate; an anti-reflective layer disposed on one of the first and second plates, wherein the anti-reflective layer promotes at least 80% light transmittance of at least one infrared wavelength through the coated glass article; and a visible light reflective layer disposed on the anti-reflective layer, the visible light reflective layer having a refractive index of at least 1.6 and a thickness of no more than 30 nm, wherein the coated glass article exhibits at least 80% light transmittance for at least one infrared wavelength and a visible light reflectance between about 8% and 10%.

[0050] As part of some embodiments, a visible light reflective layer is deployed on at least a portion of an anti-reflective layer in a region of a head-up display (HUD) system.

[0051] As part of some embodiments, an optical sensor, such as a LIDAR sensor, is deployed adjacent to at least one of an anti-reflective layer and a visible light reflective layer, wherein the optical sensor is configured to emit a light beam having at least one infrared wavelength.

[0052] As part of some embodiments, at least one reflective layer is deployed adjacent to at least a portion of at least one of the first plate and the second plate.

[0053] In some embodiments, the optical sensor is positioned to align with a gap formed in at least one reflective layer.

[0054] In yet another embodiment, a method of producing a coated glass article includes: providing a first plate; deploying an anti-reflective layer adjacent to the first plate; and deploying a visible light reflective layer on at least a portion of the anti-reflective layer, the visible light reflective layer having a refractive index of at least 1.6 and a thickness of no more than 30 nm, wherein the coated glass article exhibits at least 80% light transmittance for infrared light of at least one wavelength and visible light reflectance between about 8% and 10%.

[0055] Aspects of certain embodiments of the method will become apparent from the description relating to coated glass articles. Attached Figure Description

[0056] When considered in conjunction with the accompanying drawings, those skilled in the art will readily understand, through reading the following detailed description of the embodiments, the subject matter of the embodiments described herein and other objects and advantages thereof, wherein:

[0057] Figure 1 This is a schematic isometric view of a coated glass article including laminated window glass, according to an embodiment of the subject matter of this disclosure, wherein the laminated window glass is used as a windshield of a vehicle.

[0058] Figure 2 This is a cross-sectional view of a coated glass article taken along line AA according to an embodiment of the subject matter of this disclosure;

[0059] Figure 3 This is a cross-sectional view of a coated glass article taken along line AA according to another embodiment of the subject matter of this disclosure;

[0060] Figure 4 It is a table providing modeling results for coated laminated glass products, including visible light reflectance values ​​for the outer surface (R-1) and inner surface (R-4) of the coated glass products, as well as the percentage of light transmission at a wavelength of 905 nm at orthogonal positions and at an angle of 60° to the vertical direction of the coated glass products.

[0061] Figure 5 This is a cross-sectional view of a coated glass article according to another embodiment of the subject matter of this disclosure;

[0062] Figure 6 This is a cross-sectional view of a coated glass article comprising a monolithic glass sheet according to another embodiment of the subject matter of this disclosure; and

[0063] Figure 7It is a table providing actual test data for coated monolithic glass products, including various properties of uncoated glass products, glass products coated with an antireflective layer of silicon dioxide (SiO2) with a thickness of approximately 146 nm, glass products coated with an antireflective layer of silicon dioxide (SiO2) with a thickness of approximately 146 nm and a visible light reflective layer of tin oxide (SnO2) with a thickness of approximately 10 nm, and glass products coated with an antireflective layer of silicon dioxide (SiO2) with a thickness of approximately 146 nm and a visible light reflective layer of tin oxide (SnO2) with a thickness of approximately 12 nm. Detailed Implementation

[0064] The following detailed description and accompanying drawings illustrate various exemplary embodiments. The description and drawings are intended to enable those skilled in the art to make and use the embodiments, and are not intended to limit the scope of the embodiments in any way.

[0065] Figure 1-3 and Figure 5 Glass articles 10, 10′, and 10″, each with a laminated structure, are depicted. Figure 6 A glass article 10″′ with a monolithic construction is depicted. According to the subject matter of this disclosure, each of the glass articles 10, 10′, 10″, and 10″′ can be flat. However, the glass articles 10, 10′, 10″, and 10″′ can also be curved, such as those used in the automotive industry for rear windows, side windows, convertible sunroofs, and glass-covered sunroofs, especially as... Figure 1 The windshield shown is preferably in the range of about 500 mm to about 20,000 mm in at least one direction, and more preferably in the range of about 1,000 mm to about 8,000 mm.

[0066] Each of the glass articles 10, 10′, 10″, and 10″′ can be configured to work with a head-up display (HUD) system 8, 8′ ( Figure 1 (as shown) and optical sensor 11 ( Figure 2 and Figure 3 The HUD systems 8 and 8' (shown in the diagram) are used together in a vehicle (not depicted). It should be understood that the HUD systems 8 and 8' can be any HUD system as desired. Furthermore, each of the glass articles 10, 10', 10″, and 10″' can be constructed as a window in a building structure. However, it should be understood that the glass articles 10, 10', 10″, and 10″' can be used in a variety of other applications where it is desirable to have a certain visible light reflectivity and infrared light transmittance. It should be understood that the glass articles 10, 10', 10″, and 10″' can be used in a variety of industrial, commercial, residential, and automotive applications.

[0067] The glass articles 10, 10′, 10″, 10″′ of the subject matter of this disclosure can be positioned at an angle ranging from about 50° to 70° with respect to the vertical direction, and can have a light transmittance of at least 75% (when measured with CIE light source A) for two or more wavelengths ranging from about 750 nm to 1 mm, and the external and internal visible light reflectances can each be in the range of about 7.0% to about 10.0%. Preferably, each of the glass articles 10, 10′, 10″, 10″′ can be positioned at an angle of approximately 60° to the vertical direction. At least a first portion of the glass articles 10, 10′, 10″, 10″′ can have at least 94% light transmittance when measured at a first wavelength of approximately 905 nm and a second wavelength of approximately 1550 nm (when measured with CIE light source A). At least a second portion of the glass articles 10, 10′, 10″, 10″′ can have external and internal visible light reflectance that is substantially the same as that of the uncoated glass article, preferably in the range of approximately 8% to approximately 9%, and more preferably the external visible light reflectance can be approximately 8.6% and the internal visible light reflectance can be approximately 8.8%.

[0068] Now for reference Figure 2 The depicted glass article 10 is a laminated window glass according to one embodiment of the subject matter of this disclosure. As shown, the glass article 10 may include a first plate 12 and a second plate 14 bonded to the first plate 12 by an adhesive interlayer 16. The first plate 12 and the second plate 14 may be substantially clear and transparent to visible light. Each of the first plate 12 and the second plate 14 may be made of a glass material with generally low absorptivity and high transmittance. In some embodiments, the first plate 12 and the second plate 14 may be produced from any glass composition and using any glass manufacturing process. Preferably, each of the first plate 12 and the second plate 14 may be made of a sodium-calcium-silicon material. The sodium-calcium-silicon material may include (by weight) 70-75% silicon dioxide (SiO2); 0-5% aluminum oxide (Al2O3); 10-15% sodium oxide (Na2O); 0-5% potassium oxide (K2O); 0-10% magnesium oxide (MgO); 5-15% calcium oxide (CaO); and 0-2% sulfur trioxide (SO3). However, it should be understood that, for example, the first plate 12 and the second plate 14 may each include another composition, such as a borosilicate material composition.

[0069] In some embodiments, each of the first plate 12 and the second plate 14 may be made of a general low-iron glass material. Preferably, the first plate 12 and the second plate 14 may be made of a glass material with an iron oxide (Fe2O3) content of about 100 ppm or less. More preferably, the iron oxide (Fe2O3) content in the first plate 12 and the second plate 14 may be about 10 ppm or less. Moreover, the transparency and / or absorption properties of the first plate 12 and the second plate 14 may vary between embodiments of the glass article 10. For example, the first plate 12 and the second plate 14 may be colored. Furthermore, the thickness of each of the first plate 12 and the second plate 14 may vary between embodiments of the glass article 10. In some embodiments, the thickness of each of the first plate 12 and the second plate 14 may be in the range of about 0.7 mm to about 12 mm. Preferably, each of the first plate 12 and the second plate 14 may have a thickness of about 2.2 mm.

[0070] The first plate 12 may have a first main surface 1 and an opposing second main surface 2. The second plate 14 may have a first main surface 3 and an opposing second main surface 4. When the glass article 10 is used as a windshield in a vehicle, the main surface 1 faces the external environment (as indicated by the sun 17) and the second main surface 4 faces the interior of the vehicle. Therefore, the first plate 12 is the "outer window glass" of the windshield and the second plate 14 is the "inner window glass" of the windshield.

[0071] like Figure 2 As shown, an adhesive interlayer 16 can be inserted between the first plate 12 and the second plate 14. Similar to the first plate 12 and the second plate 14, the transparency and / or absorption properties of the interlayer 16 can vary between embodiments of the glass article 10. For example, the adhesive interlayer 16 can be colored if desired. Figure 2 In one embodiment shown, the adhesive interlayer 16 may be a single-layer sheet deployed adjacent to the second main surface 2 of the first plate 12 and the first main surface 3 of the second plate 14. The single-layer sheet adhesive interlayer 16 may be made of polyvinyl butyral (PVB), ethylene vinyl acetate (EVA), polyvinyl chloride (PVC), polyurethane (PU), acoustically modified PVB, and / or liquid-curable acrylic resin (e.g., The single-layer sheet adhesive interlayer 16 can have a thickness ranging from about 0.3 mm to about 2.3 mm. Preferably, the single-layer sheet adhesive interlayer 16 can have a thickness ranging from about 0.3 mm to about 1.1 mm, and more preferably about 0.76 mm. More preferably, the glass plates 12, 14 of the glass article 10 can be made of Pilkington Optiwhite. TM(Made commercially available from Pilkington Group Limited) and bonded via a single-layer sheet adhesive layer 16. In a preferred embodiment, each of the glass plates 12, 14 may be made of Pilkington Optiwhite with a thickness of approximately 2.2 mm. TM Production, and the single-layer interlayer 16 can have a thickness of approximately 0.76 mm.

[0072] In some embodiments, the glass article 10 may further include at least one reflective layer 24. For example... Figure 2 As shown, at least one reflective layer 24 may be deployed adjacent to the adhesive interlayer 16 on the second main surface 2 of the first plate 12 or the first main surface 3 of the second plate 14. In some embodiments, the glass article 10 may include a plurality of reflective layers 24 deployed adjacent to at least one of the first plate 12 and the second plate 14. For example, the glass article 10 may include one of the reflective layers 24 deployed adjacent to the second main surface 2 of the first plate 12 and another of the reflective layers 24 deployed adjacent to the first main surface 3 of the second plate 14.

[0073] At least one reflective layer 24 is shown to reflect solar and / or infrared radiation. In some embodiments, the at least one reflective layer 24 may be formed of, for example, a metallic material (e.g., silver), tin-doped indium oxide, lanthanum hexaboride, or other such suitable infrared reflective materials. In some embodiments, the at least one reflective layer 24 may be deposited by sputtering. Various other methods may be used to form the at least one reflective layer 24 if desired. While the at least one reflective layer 24 may extend over substantially the entire surface of the first plate 12 and the second plate 14, it may be formed to extend only over a portion of their surfaces. The peripheral edges of the at least one reflective layer 24 may be offset from the peripheral edges of the first plate 12 and the second plate 14 and / or the adhesive interlayer 16 to prevent corrosion and damage. The thickness of the at least one reflective layer 24 may range from about 10 nm to about 20 nm. It should be understood that the at least one reflective layer 24 may have any suitable thickness as desired.

[0074] Advantageously, at least one reflective layer 24 may include a gap 26 formed in at least one desired location to prevent potential interference between at least one reflective layer 24 and surrounding components (e.g., optical sensor 11, camera, cellular phone, GPS, road and parking transponder, various other sensors, etc.). The gap 26 in at least one reflective layer 24 may be formed during the manufacture of the glass article 10 (e.g., to mask the glass article 10 at the desired location) or a portion of at least one reflective layer 24 may be removed by any suitable method (such as laser or mechanical removal or etching). For example, the gap 26 in at least one reflective layer 24 may cover at least one continuous area or be in a desired configuration, such as a linear or grid pattern.

[0075] As shown, the glass article 10 may further include a first optical layer or anti-reflective (AR) layer 30. The AR layer 30 may be configured to enhance light transmission through the glass article 10. Preferably, the AR layer 30 may be formed on the second main surface 4 of the second plate 14. More preferably, the AR layer 30 may be formed directly on the second main surface 4 of the second plate 14, substantially without interlayer. However, it should be understood that, for example, the AR layer 30 may be formed on other surfaces of the glass article 10, such as the first main surface 1 of the first plate 12. As a non-limiting example, the AR layer 30 may be an additional coating deposited on the second plate 14 or an anti-reflective film deployed thereon. While the AR layer 30 may extend over substantially the entire surface of the first plate 12 and the second plate 14, it may be formed to extend only over a portion of their surfaces.

[0076] In one embodiment, AR layer 30 may be a single-layer coating comprising silicon dioxide (SiO2) deposited by chemical vapor deposition (CVD). In another embodiment, AR layer 30 may be a single-layer coating comprising titanium oxide (TiO2) nanoparticles deposited by a sol-gel process. It should be understood that, as desired, AR layer 30 may be a multilayer coating formed from any suitable material by any suitable method.

[0077] The AR layer 30 can be selectively formed to a desired thickness to achieve a desired percentage of transmission. In some embodiments, the thickness of the AR layer 30 can enable optimal transmittance through the glass article 10 at least in one of the first and second wavelengths. Preferably, the thickness of the AR layer 30 can enable at least 80% transmittance through the glass article 10 in one of the first and second wavelengths. More preferably, the thickness of the AR layer 30 can enable at least 90% transmittance through the glass article 10 in one of the first and second wavelengths. Most preferably, the thickness of the AR layer 30 can enable at least 94% transmittance through the glass article 10 in one of the first and second wavelengths.

[0078] In some embodiments, the AR layer 30 may be deposited with a thickness of not less than about 80 nm, and more preferably not less than about 100 nm. In other embodiments, the thickness of the AR layer 30 may be in the range of about 80 nm to about 400 nm, preferably in the range of about 80 nm to about 160 nm, and more preferably in the range of about 120 nm to about 150 nm.

[0079] Preferably, the glass article 10 can be configured such that the light transmittance (when measured with CIE light source A) in the region of the glass article 10 visible to vehicle occupants is substantially equivalent to that of the glass article 10 without the AR layer 30, while the light transmittance (when measured with CIE light source A) of at least one of a first wavelength and a second wavelength in the region of the glass article 10 aligned with the optical sensor 11 is greater than that of the glass article 10 without the AR layer 30. Preferably, the light transmittance (when measured with CIE light source A) of at least one of the first wavelength and a second wavelength in the region of the glass article 10 aligned with the optical sensor 11 can be maximized.

[0080] In some embodiments, the glass article 10 may further include a second optical layer or a visible light (VL) reflective layer 40. For example... Figure 2 As shown, the VL reflective layer 40 may be deployed adjacent to the AR layer 30. In one embodiment, the VL reflective layer 40 may be deployed on the surface of the AR layer 30 opposite to the second plate 14. The VL reflective layer 40 shown reflects visible light and has minimal to no effect on the transmission of infrared light through the glass article 10. In one embodiment, the VL reflective layer 40 may be a coating comprising tin oxide (SnO2). The VL reflective layer 40 composed of tin oxide also enhances the durability of the glass article 10. It should be appreciated that the VL reflective layer 40 may comprise other suitable visible light reflective materials, such as metal oxides with a refractive index greater than 1.6 (e.g., aluminum oxide (Al2O3), titanium dioxide (TiO2)), chromium oxide (Cr2O3), and niobium oxide (NbO)).

[0081] In some embodiments, the VL reflective layer 40 can be deposited by sputtering. Various other methods can be used to form the VL reflective layer 40 if desired. While the VL reflective layer 40 can extend over substantially the entire surface of the AR layer 30, it can be formed to extend only over a portion of its surface. In some embodiments, the VL reflective layer 40 can be deployed over the AR layer 30 in an area of ​​the HUD system 8 to reflect visible light and allow proper operation of the HUD system 8. The thickness of the VL reflective layer 40 can range from about 5 nm to about 20 nm, preferably from about 5 nm to about 12 nm, and more preferably from about 6 nm to about 9 nm. It should be understood that the VL reflective layer 40 can have any suitable thickness as desired.

[0082] In a preferred embodiment, the VL reflective layer 40 may comprise a metal oxide having a refractive index of at least 1.6 and less than 1.8 and a thickness of no more than 30 nm. In a more preferred embodiment, the VL reflective layer 40 may comprise a metal oxide having a refractive index of at least 1.8 and a thickness of no more than 20 nm.

[0083] In some embodiments, the optical sensor 11 may be a light detection and ranging (LIDAR) type sensor. For example, such LIDAR sensors include, but are not limited to, pedestrian detection sensors, pre-collision sensors, proximity speed sensors, and adaptive cruise control sensors. In other embodiments, the optical sensor 11 may be a photoelectric system comprising at least a laser or sensing beam transmitter, at least a receiver, and at least one photodetector. The receiver includes a light or sensing beam collector (telescope or other optical device), and the photodetector converts the light or sensing beam into an electrical signal, as well as an electronic processing chain signal to extract the sought information.

[0084] Optical sensor 11 can be configured to emit a sensing beam that passes through glass article 10 and strikes a remote object. The sensing beam can be reflected from the object, so that it returns through glass article 10 and is detected by receiver of optical sensor 11. Most commonly, each of the initial sensing beam emitted from optical sensor 11 and the reflected sensing beam received by optical sensor 11 can have the same wavelength, preferably one of a first wavelength and a second wavelength. The at least one photodetector can be configured to convert the sensing beam into an electrical signal, which can then be transmitted to a controller or microcontroller (not depicted).

[0085] As shown, the optical sensor 11 can be deployed on the second main surface 4 of the second plate 12. However, it should be understood that the optical sensor 11 can be positioned on the glass article 10 or at other suitable locations adjacent to the glass article 10. In some embodiments, the optical sensor 11 can be positioned to align with the gap 26 formed in at least a portion of at least one reflective layer 24 and AR layer 30 to minimize interference and maximize the transmittance of at least one of the wavelengths passing through the glass article 10, resulting in improved accuracy and reliability of the optical sensor 11.

[0086] In a preferred embodiment, the glass article 10 includes a first plate 12 having at least one reflective layer 24 disposed adjacent to its second main surface 2. A monolayer adhesive layer 16 may be disposed adjacent to the at least one reflective layer 24. More specifically, at least one layer of silver reflective layer 24 may be deposited onto the adhesive layer 16 by sputtering. During the manufacture of the glass article 10, a void 26 may be formed in the at least one reflective layer 24 at a desired location. A second plate 14 may be disposed adjacent to the at least one reflective layer 24. An AR layer 30 may then be deposited onto the second main surface 4 of the second plate 14. A VL reflective layer 40 may then be disposed adjacent to the AR layer 30. An optical sensor 11 may be disposed adjacent to the surface 42 of the VL reflective layer 40, aligned with the void 26 formed in the at least one reflective layer 24.

[0087] Figure 3 It shows something similar to Figure 2 The glass article 10' shown is also a laminated window glass according to another embodiment of the subject matter of this disclosure. Figure 2 The description of related similar structures is indicated by the reference numerals in the accompanying drawings. Figure 3 Repeated with an apostrophe (′).

[0088] As shown in the figure, the glass article 10' may include a first plate 12' and a second plate 14' bonded to the first plate 12' via an adhesive interlayer 16'. The first and second plates 12' and 14' may be substantially clear and transparent to visible light. Each of the first and second plates 12' and 14' may be made of a glass material with generally low absorptivity and high transmittance. In some embodiments, the first and second plates 12' and 14' may be made of any glass composition and produced using any glass manufacturing process. Preferably, each of the first and second plates 12' and 14' may be made of a sodium-calcium-silicon material. The sodium-calcium-silicon material may include (by weight) 70-75% silicon dioxide (SiO2); 0-5% aluminum oxide (Al2O3); 10-15% sodium oxide (Na2O); 0-5% potassium oxide (K2O); 0-10% magnesium oxide (MgO); 5-15% calcium oxide (CaO); and 0-2% sulfur trioxide (SO3). However, it should be understood that the first and second plates 12′ and 14′ may each comprise another composition, such as a borosilicate material composition.

[0089] In some embodiments, each of the first and second plates 12', 14' can be made of a general low-iron glass material. Preferably, the first and second plates 12', 14' can be made of a glass material with an iron oxide (Fe2O3) content of about 100 ppm or less. More preferably, the iron oxide (Fe2O3) content in the first plate 12' and the second plate 14' can be about 10 ppm or less. Moreover, the transparency and / or absorption characteristics of the first and second plates 12', 14' can vary between embodiments of the glass article 10'. For example, the first and second plates 12', 14' can be colored. Furthermore, the thickness of each of the first plate 12' and the second plate 14' can vary between embodiments of the glass article 10'. In some embodiments, the thickness of each of the first plate 12' and the second plate 14' can be in the range of about 0.7 mm to about 12 mm. Preferably, each of the first plate 12' and the second plate 14' can have a thickness of about 2.2 mm.

[0090] The first plate 12' may have a first main surface 1' and an opposing second main surface 2'. The second plate 14' may have a first main surface 3' and an opposing second main surface 4'. When the glass article 10' is used as a windshield in a vehicle, the main surface 1' faces the external environment (as indicated by the sun 17'), and the second main surface 4' faces the interior of the vehicle. Therefore, the first plate 12' is the "outer window glass" of the windshield, and the second plate 14' is the "inner window glass" of the windshield.

[0091] like Figure 3As shown, an adhesive interlayer 16' can be inserted between the first and second plates 12', 14'. Similar to the first and second plates 12', 14', the transparency and / or absorption properties of the interlayer 16' can vary between embodiments of the glass article 10'. For example, the adhesive interlayer 16' can be colored if desired. Figure 3 In the illustrated embodiment, the adhesive interlayer 16′ may be a multilayer sheet interlayer comprising a first sheet 18 formed of PVB, a second sheet 20 formed of polyethylene terephthalate (PET), and a third sheet 22 formed of PVB. It should be understood that each of the sheets 18, 20, and 22 may be formed from other suitable adhesive materials as desired. Each of the sheets 18, 20, and 22 includes corresponding first surfaces 18a, 20a, and 22a and opposing second surfaces 18b, 20b, and 22b. As shown, the first sheet 18 may be deployed adjacent to the second main surface 2′ of the first plate 12′ and the first surface 20a of the second sheet 20. The second sheet 20 may be deployed adjacent to the second surface 18b of the first sheet 18 and the first surface 22a of the third sheet 22. The third sheet 22 may be deployed adjacent to the second surface 20b of the second sheet 20 and the first main surface 3′ of the second plate 14′. The thickness of the first layer 18 can range from about 0.3 mm to about 2.3 mm, and more preferably about 0.38 mm. The intermediate second layer 20 has a thickness ranging from about 0.01 mm to 1.0 mm, and more preferably about 0.05 mm. The thickness of the third layer 22 can range from about 0.3 mm to about 2.3 mm, and more preferably about 0.76 mm. Various other adhesive materials can be used to produce the interlayer 16′, as desired. It should be appreciated that the thickness of the adhesive interlayer 16′ can vary between embodiments of the glass article 10′ according to the subject matter of this disclosure. More preferably, the glass plates 12′, 14′ of the glass article 10′ can be made of Pilkington Optiwhite. TM (Commercially available from Pilkington Group Limited) and bonded via a multilayer sheet adhesive layer 16′. In a preferred embodiment, each of the glass plates 12′, 14′ may be made of Pilkington Optiwhite with a thickness of approximately 2.2 mm. TM Made.

[0092] In some embodiments, the glass article 10' may further include at least one reflective layer 24'. The at least one reflective layer 24' may be deployed adjacent to the adhesive interlayer 16' on the second main surface 2' of the first plate 12' or the first main surface 3' of the second plate 14'. Alternatively, as... Figure 3As shown, at least one reflective layer 24' may be incorporated into the multilayer interlayer 16'. In one embodiment, at least one reflective layer 24' may be deployed on the second surface 18b of the first layer 18 adjacent to the first surface 20a of the second layer 20. In another embodiment, at least one reflective layer 24' may be deployed on the second surface 20b of the second layer 20 adjacent to the first surface 22a of the third layer 22. In some embodiments, the glass article 10' may include three reflective layers 24' incorporated into the multilayer interlayer 16'. In some embodiments, the glass article 10' may include a plurality of reflective layers 24', which are deployed adjacent to at least one of the first and second plates 12', 14' and incorporated into the multilayer interlayer 16'. For example, the glass article 10' may include one of the reflective layers 24' deployed on the second main surface 2' of the first plate 12', another of the reflective layers 24' deployed on the first main surface 3' of the second plate 14', and another of the reflective layers 24' deployed on at least one of the second surface 18b of the first layer 18 adjacent to the first surface 20a of the second layer 20 and the second surface 20b of the second layer 20 adjacent to the first surface 22a of the third layer 22.

[0093] At least one reflective layer 24′ is shown that reflects solar and / or infrared radiation. In some embodiments, the at least one reflective layer 24′ may be formed of, for example, a metallic material (e.g., silver), tin-doped indium oxide, lanthanum hexaboride, or other such suitable infrared reflective materials. In some embodiments, the at least one reflective layer 24′ may be deposited by sputtering. Various other methods may be used to form the at least one reflective layer 24′ if desired. While the at least one reflective layer 24′ may extend over substantially the entire surface of the first and second plates 12′, 14′ and / or layers 18, 20, 22, it may also be formed to extend only over a portion of its surface. The peripheral edges of the at least one reflective layer 24′ and the second layer 20 may be offset from the peripheral edges of the first and second plates 12′, 14′ and / or layers 18, 22 to prevent corrosion and damage. The thickness of the at least one reflective layer 24′ may range from about 10 nm to about 20 nm. It should be understood that the at least one reflective layer 24′ may have any suitable thickness as desired.

[0094] Advantageously, at least one reflective layer 24' may include a gap 26' formed at at least one desired location to prevent potential interference between at least one reflective layer 24' and surrounding components (e.g., optical sensor 11', camera, cellular phone, GPS, road and parking transponder, various other sensors, etc.). The gap 26' in at least one reflective layer 24' may be formed during the manufacture of the glass article 10' (e.g., by covering the glass article 10' at the desired location) or by removing a portion of at least one reflective layer 24' by any suitable method (such as laser or mechanical removal or etching). For example, the gap 26' in at least one reflective layer 24' may cover at least one continuous area or be in a desired configuration, such as a linear or grid pattern.

[0095] As shown, the glass article 10' may further include a first optical layer or anti-reflective (AR) layer 30'. The AR layer 30' may be configured to enhance light transmission through the glass article 10'. Preferably, the AR layer 30' may be formed on the second main surface 4' of the second plate 14'. More preferably, the AR layer 30' may be formed directly on the second main surface 4' of the second plate 14', substantially without interlayer. However, it should be understood that the AR layer 30' may be formed on other surfaces of the glass article 10', such as the first main surface 1' of the first plate 12'. As a non-limiting example, the AR layer 30' may be an additional coating deposited on the second plate 14' or an anti-reflective film deployed thereon. While the AR layer 30' may extend over substantially the entire surface of the first and second plates 12', 14', it may also be formed to extend only on a portion of their surfaces.

[0096] In one embodiment, AR layer 30′ may be a single-layer coating comprising silicon dioxide (SiO2) deposited by chemical vapor deposition (CVD). In another embodiment, AR layer 30′ may be a single-layer coating comprising titanium oxide (TiO2) nanoparticles deposited by a sol-gel process. It should be understood that AR layer 30′ may be a multilayer coating formed as desired from any suitable material by any suitable method.

[0097] The AR layer 30′ can be selectively formed at a desired thickness to achieve a desired percentage of transmission. In some embodiments, the thickness of the AR layer 30′ allows at least one of the first and second wavelengths to optimally transmit through the glass article 10′. Preferably, the thickness of the AR layer 30′ allows at least 80% transmittance of at least one of the first and second wavelengths through the glass article 10′. More preferably, the thickness of the AR layer 30′ allows at least 90% transmittance of at least one of the first and second wavelengths through the glass article 10′. Most preferably, the thickness of the AR layer 30′ allows at least 94% transmittance of at least one of the first and second wavelengths through the glass article 10′.

[0098] In some embodiments, the deposition thickness of the AR layer 30′ may be not less than about 80 nanometers, more preferably not less than about 100 nanometers. In other embodiments, the thickness of the AR layer 30′ may be in the range of about 80 nm to about 400 nm, preferably in the range of about 80 nm to about 160 nm, more preferably in the range of about 120 nm to about 150 nm.

[0099] Preferably, the glass article 10' can be configured such that the light transmittance (when measured with CIE light source A) in the region of the glass article 10' visible to vehicle occupants is substantially equivalent to that of the glass article 10' without the AR layer 30', while the light transmittance (when measured with CIE light source A) of at least one of the first and second wavelengths in the region of the glass article 10' aligned with the optical sensor 11' is greater than that of the glass article 10' without the AR layer 30'. Preferably, the light transmittance (when measured with CIE light source A) of at least one of the first and second wavelengths in the region of the glass article 10' aligned with the optical sensor 11' can be maximized.

[0100] In some embodiments, the glass article 10′ may also include a second optical layer or a visible light (VL) reflective layer 40′. For example... Figure 3 As shown, the VL reflective layer 40′ can be deployed adjacent to the AR layer 30′. In one embodiment, the VL reflective layer 40′ can be deployed on the surface of the AR layer 30′ opposite to the second plate 14′. The VL reflective layer 40′ shown reflects visible light and has minimal or no effect on the transmission of infrared light through the glass article 10′. In one embodiment, the VL reflective layer 40′ can be a coating comprising tin oxide (SnO2). The VL reflective layer 40′ composed of tin oxide also enhances the durability of the glass article 10′. It should be appreciated that the VL reflective layer 40′ can include other suitable visible light reflective materials, such as metal oxides with a refractive index greater than 1.6 (e.g., aluminum oxide (Al2O3), titanium dioxide (TiO2), chromium oxide (Cr2O3), and niobium oxide (NbO)).

[0101] In some embodiments, the VL reflective layer 40′ can be deposited by sputtering. Various other methods can be used to form the VL reflective layer 40′ if desired. While the VL reflective layer 40′ can extend substantially over the entire surface of the AR layer 30′, it can also be formed to extend only over a portion of its surface. In some embodiments, the VL reflective layer 40′ can be deployed over the AR layer 30′ in a region of the HUD system 8′ to reflect visible light and allow proper operation of the HUD system 8′. The thickness of the VL reflective layer 40′ can range from about 5 nm to about 20 nm, preferably from about 5 nm to about 12 nm, and more preferably from about 6 nm to about 9 nm. It should be understood that the VL reflective layer 40′ can have any suitable thickness as desired.

[0102] In a preferred embodiment, the VL reflective layer 40′ may comprise a metal oxide with a refractive index of at least 1.6 and less than 1.8 and a thickness of no more than 30 nanometers. In a more preferred embodiment, the VL reflective layer 40′ may comprise a metal oxide with a refractive index of at least 1.8 and a thickness of no more than 20 nm.

[0103] In some embodiments, the optical sensor 11' may be a light detection and ranging (LIDAR) type sensor. For example, such LIDAR sensors include, but are not limited to, pedestrian detection sensors, pre-collision sensors, proximity speed sensors, and adaptive cruise control sensors. In other embodiments, the optical sensor 11' may be a photoelectric system comprising at least a laser or sensing beam transmitter, at least a receiver, and at least a photodetector. The receiver includes a light or sensing beam collector (telescope or other optical device), the photodetector converts the light or sensing beam into an electrical signal, and an electronic processing chain signal for extracting the sought information.

[0104] Optical sensor 11' can be configured to emit a sensing beam that passes through glass article 10' and strikes a distant object. The sensing beam can be reflected by the object, return through glass article 10', and be detected by a receiver of optical sensor 11'. Most commonly, the initial sensing beam emitted from optical sensor 11' and the reflected sensing beam received by optical sensor 11' can each have the same wavelength, preferably one of a first or second wavelength. The at least one photodetector can be configured to convert the sensing beam into an electrical signal, which can then be transmitted to a controller or microcontroller (not depicted).

[0105] As shown in the figure, the optical sensor 11' can be deployed on the second main surface 4' of the second plate 12'. However, it should be understood that the optical sensor 11' can be positioned on the glass article 10' or at other suitable locations adjacent to the glass article 10'. In some embodiments, the optical sensor 11' can be aligned with a gap 26' formed in at least a portion of at least one reflective layer 24' and AR layer 30' to minimize interference and maximize the transmittance of at least one wavelength through the glass article 10', resulting in improved accuracy and reliability of the optical sensor 11'.

[0106] In a preferred embodiment, the glass article 10' includes a first plate 12' having a first sheet 18 having a multilayer sheet adhesive layer 16' disposed adjacent to its second main surface 2'. At least one reflective layer 24' may be disposed adjacent to the second surface 18b of the first sheet 18. A second sheet 20' may be disposed adjacent to at least one reflective layer 24'. More specifically, at least one silver reflective layer 24' may be deposited on the first surface 20a of the second sheet 20 by sputtering. During the manufacture of the glass article 10', voids 26' may be formed at desired locations in the at least one reflective layer 24'. A third sheet 22 may then be disposed adjacent to the second surface 20b of the second sheet 20. A second plate 14' may be disposed adjacent to the second surface 22b of the third sheet 22. An AR layer 30' may then be deposited onto the second main surface 4' of the second plate 14'. A VL reflective layer 40' may then be disposed adjacent to the AR layer 30'. The optical sensor 11′ can be deployed adjacent to the surface 42′ of the VL reflective layer 40′ and aligned with the gap 26′ formed in at least one reflective layer 24′.

[0107] like Figure 4 As detailed, when the glass article 10 is an uncoated laminated window glass (e.g., without AR layer 30 and VL reflective layer 40), the glass article 10 exhibits a visible light reflectance value of approximately 8.7% at its outer surface (R-1), a visible light reflectance value of approximately 8.7% at its inner surface (R-4), a light transmittance of approximately 88.4% at a first wavelength (e.g., 905 nm) when positioned substantially vertically (measured with CIE light source A), and a light transmittance of approximately 81% at a first wavelength (e.g., 905 nm) when positioned at an angle of approximately 60° to the vertical direction (measured with CIE light source A).

[0108] When the glass article 10 is a laminated window glass comprising an AR layer 30 made of 130 nm silicon dioxide (SiO2), the glass article 10 exhibits a visible light reflectance of approximately 7.2% at its outer surface (R-1), a visible light reflectance of approximately 7.2% at its inner surface (R-4), a transmittance of approximately 90.5% at a first wavelength (e.g., 905 nm) when positioned substantially vertically, and a transmittance of approximately 82.4% at a first wavelength (e.g., 905 nm) when positioned at an angle of approximately 60° to the vertical direction.

[0109] When the glass article 10 is a laminated window glass comprising an AR layer 30 composed of 130 nm silicon dioxide (SiO2) and a VL reflective layer 40 composed of 8 nm tin oxide (SnO2), the glass article 10 exhibits a visible light reflectance value of approximately 8.6% at its outer surface (R-1), a visible light reflectance value of approximately 8.6% at its inner surface (R-4), a transmittance of approximately 90.5% at a first wavelength (e.g., 905 nm) when positioned substantially vertically, and a transmittance of approximately 82.5% at a first wavelength (e.g., 905 nm) when positioned at an angle of approximately 60° to the vertical direction.

[0110] See now Figure 5 Glass article 10″ is a laminated window glass shown in another embodiment of the subject matter of this disclosure. Glass article 10″ is similar to Figure 2 and Figure 3 The glassware shown. (Compared to...) Figure 2 and Figure 3 The description of related similar structures is indicated by the reference numerals in the accompanying drawings. Figure 5 The middle part is repeated with a double left-falling stroke (″). Figure 5 The glass article 10″ shown is suitable for architectural applications. The glass article 10″ includes a first plate 12″, an adhesive layer 16″ disposed adjacent to the first plate 12″, and a second plate 14″ disposed adjacent to the adhesive layer 16″. An AR layer 30″ can then be deposited onto the second primary surface 4″ of the second plate 14″. A VL reflective layer 40″ can then be disposed adjacent to the AR layer 30″.

[0111] Figure 6 The illustration shows a glass article 10″′ according to another embodiment of the subject matter of this disclosure. The glass article 10″′ is similar to Figure 2 , Figure 3 and Figure 5 The glass article shown. However, the glass article 10″′ is a single piece. With Figure 2 , Figure 3 and Figure 5 The description of related similar structures is indicated by the reference numerals in the accompanying drawings. Figure 6 The middle part is repeated with three strokes (″′). The glass article 10″′ can also be adapted for architectural applications. The glass article 10″′ can include a single glass plate 12″′. In some embodiments, the glass plate 12″′ can have a thickness of approximately 2.3 mm. The AR layer 30″′ can then be deposited onto the second primary surface 2″′ of the glass plate 12″′. The VL reflective layer 40″′ can then be deployed adjacent to the AR layer 30″′.

[0112] See now Figure 7The table provides various characteristics of uncoated monolithic glass articles, monolithic glass articles coated with an AR layer of silicon dioxide (SiO2) 30″′, monolithic glass articles coated with an AR layer of silicon dioxide (SiO2) 30″′ with a thickness of approximately 146 nm, monolithic glass articles 10″′ with an AR layer of silicon dioxide (SiO2) 30″′ with a thickness of approximately 146 nm and a VL reflective layer of tin oxide (SnO2) 40″′ with a thickness of approximately 10 nm, and monolithic glass articles 10″′ with an AR layer of silicon dioxide (SiO2) 30″′ with a thickness of approximately 146 nm and a VL reflective layer of tin oxide (SnO2) 40″′ with a thickness of approximately 12 nm. As shown in the figure, an uncoated monolithic glass article (e.g., without the AR layer 30″′ and VL reflective layer 40″′) exhibits approximately 92.3% visible light transmittance (when measured with CIE illuminator A), approximately 0.06 haze, approximately 8.8% visible light reflectance, approximately -0.12 coordinate a* and approximately -0.93 coordinate b* (which define colors according to the CIELAB color scale system), and approximately 90.5% infrared light transmittance at the first wavelength (e.g., 905 nm) (when measured with CIE illuminator A). A monolithic glass article consisting only of the AR layer 30″′ exhibits approximately 93.2% visible light transmittance (measured with CIE illuminator A), approximately 0.06 haze, approximately 7.8% visible light reflectance, approximately -0.44 coordinates a* and approximately -3.2 coordinates b* (color defined according to the CIELAB colorimetric system), and approximately 92.0% infrared light transmittance at the first wavelength (e.g., 905 nm) (measured with CIE illuminator A). Including the AR layer 30″′ The monolithic glass article 10″′ coated with the VL reflective layer 40″′ exhibits approximately 92.4% visible light transmittance (when measured with CIE illuminator A), approximately 0.07 haze, approximately 8.45% visible light reflectance, approximately -0.8 coordinate a* and approximately -3.5 coordinate b* (color defined according to the CIELAB color scale system), and approximately 92.0% infrared light transmittance at the first wavelength (e.g., 905 nm) (when measured with CIE illuminator A). The monolithic glass article 10″, including the AR layer 30″′ and the VL reflective layer 40″′, exhibits approximately 92.4% visible light transmittance (when measured with CIE illuminator A), approximately 0.07 haze, approximately 8.65% visible light reflectance, approximately -0.85 coordinates a* and approximately -3.6 coordinates b* (color defined according to the CIELAB color scale system), and approximately 92.1% infrared light transmittance at the first wavelength (e.g., 905 nm) (when measured with CIE illuminator A).It is worth noting that the coated monolithic glass article 10″′, including the AR layer 30″′ and the VL reflective layer 40″′, has a visible light reflectance value comparable to that of an uncoated monolithic glass article, which provides sufficient visible light reflectance for the normal operation of the HUD system 8, as well as 92.0% infrared light transmittance at the first wavelength (e.g., 905 nm) (when measured with CIE light source A), which is sufficient for the normal operation of the optical sensor 11.

[0113] Based on the foregoing description, those skilled in the art can readily identify the essential characteristics of the subject matter of the embodiments described herein, and various changes and modifications can be made to the embodiments to adapt them to various uses and conditions without departing from their spirit and scope.

Claims

1. A coated glass article, comprising: First glass plate; An anti-reflective layer is deployed adjacent to at least a portion of the first glass plate; as well as A visible light reflective layer is disposed on at least a portion of the antireflective layer, the visible light reflective layer having a refractive index of at least 1.6 and a thickness of no more than 30 nm, wherein the coated glass article exhibits at least 80% light transmittance for at least one wavelength of infrared light and a visible light reflectance between 8% and 10%, wherein the antireflective layer is formed of silicon dioxide (SiO2) or titanium dioxide (TiO2), and wherein the visible light reflective layer is formed of a metal oxide.

2. The coated glass article as claimed in claim 1, wherein the first glass plate is made of a glass material with low light absorption and high light transmittance.

3. The coated glass article of claim 1, wherein the first glass plate is made of glass material with an iron content of 100 ppm or less.

4. The coated glass article of claim 1, wherein the first glass plate is made of glass material with an iron content of 10 ppm or less.

5. The coated glass article of claim 1, further comprising a second glass plate, wherein the first glass plate and the second glass plate are bonded together by an adhesive layer.

6. The coated glass article of claim 5, wherein the adhesive layer comprises at least one sheet of at least one selected from polyvinyl butyral (PVB), ethylene vinyl acetate (EVA), polyvinyl chloride (PVC), polyurethane (PU), and liquid curable acrylic resin.

7. The coated glass article of claim 5, wherein the adhesive layer comprises at least one sheet of acoustically modified PVB.

8. The coated glass article of claim 5, wherein the adhesive layer comprises a plurality of sheets.

9. The coated glass article of claim 5, wherein the adhesive layer comprises a first sheet formed of PVB, a second sheet formed of polyethylene terephthalate (PET), and a third sheet formed of PVB.

10. The coated glass article as claimed in claim 5, further comprising at least one reflective layer.

11. The coated glass article of claim 10, wherein the at least one reflective layer is disposed adjacent to at least a portion of one of the first glass plate and the second glass plate.

12. The coated glass article of claim 10, wherein the at least one reflective layer comprises a metallic material or tin-doped indium oxide or lanthanum hexaboride.

13. The coated glass article of claim 10, wherein the at least one reflective layer includes at least one void formed therein.

14. The coated glass article of claim 5, wherein the antireflective layer is formed to cover at least a portion of at least one of the first glass plate and the second glass plate.

15. The coated glass article of claim 5, wherein each of the first glass plate and the second glass plate includes a first main surface and a second main surface, and wherein the antireflective layer is disposed adjacent to at least a portion of the second main surface of the second glass plate.

16. The coated glass article of claim 1, wherein the antireflective layer has a thickness of at least 80 nm.

17. The coated glass article of claim 1, wherein the antireflective layer has a thickness in the range of 120 nm to 200 nm.

18. The coated glass article of claim 1, wherein the antireflective layer has a thickness in the range of 120 nm to 150 nm.

19. The coated glass article of claim 1, wherein the antireflective layer promotes at least 94% light transmittance of the at least one wavelength through the coated glass article.

20. The coated glass article of claim 1, wherein the at least one wavelength is in the range of 750 nm to 1 mm.

21. The coated glass article of claim 1, wherein the antireflective layer promotes a desired light transmittance for at least one of a first wavelength and a second wavelength.

22. The coated glass article of claim 21, wherein the first wavelength is 905 nm.

23. The coated glass article of claim 21, wherein the second wavelength is 1550 nm.

24. The coated glass article according to any one of claims 1-23, further comprising an optical sensor deployed adjacent to at least one of the antireflective layer and the visible light reflective layer, wherein the optical sensor is configured to emit a light beam having at least one wavelength.

25. The coated glass article according to any one of claims 1-23, further comprising a LIDAR sensor deployed adjacent to at least one of the antireflective layer and the visible light reflective layer, wherein the LIDAR sensor is configured to emit a light beam having at least one wavelength.

26. The coated glass article of claim 24, wherein the optical sensor is positioned to align with a void formed in at least one reflective layer of the coated glass article.

27. The coated glass article of claim 25, wherein the LIDAR sensor is positioned to align with a void formed in at least one reflective layer of the coated glass article.

28. The coated glass article according to any one of claims 1-23, wherein the visible light reflective layer is formed to cover at least a portion of the coated glass article.

29. The coated glass article according to any one of claims 1-23, wherein the visible light reflective layer has a thickness in the range of 6 nm to 9 nm.

30. The coated glass article according to any one of claims 1 to 23, wherein the visible light reflective layer is a metal oxide having a refractive index of at least 1.6 and less than 1.8 and a thickness of not more than 30 nm.

31. The coated glass article according to any one of claims 1 to 23, wherein the visible light reflective layer is a metal oxide having a refractive index of at least 1.8 and a thickness of no more than 20 nm.

32. The coated glass article according to any one of claims 1 to 23, wherein the visible light reflective layer is formed of tin oxide (SnO2), aluminum oxide (Al2O3), titanium dioxide (TiO2), chromium oxide (Cr2O3) or niobium oxide (NbO).

33. The coated glass article according to any one of claims 1 to 23, wherein the visible light reflective layer promotes a visible light reflectance value of 8.6% at the outer surface of the coated glass article and a visible light reflectance value of 8.6% at the inner surface of the coated glass article.

34. The coated glass article as claimed in any one of claims 1 to 23, wherein the visible light reflective layer is deployed on at least a portion of the anti-reflective layer in the area of ​​the head-up display (HUD) system.

35. A method for producing coated glass articles, comprising: Provide the first glass plate; An anti-reflective layer is deployed adjacent to the first glass plate; as well as A visible light reflective layer is deployed on at least a portion of the antireflective layer, the visible light reflective layer having a refractive index of at least 1.6 and a thickness of no more than 30 nm, wherein the coated glass article exhibits at least 80% light transmittance for at least one wavelength of infrared light and a visible light reflectance between 8% and 10%, wherein the antireflective layer is formed of silicon dioxide (SiO2) or titanium dioxide (TiO2), and wherein the visible light reflective layer is formed of a metal oxide.

Citation Information

Patent Citations

  • Coating for a Heads-Up Display with Low Visible Light Reflectance

    US20200309997A1

  • Windshield

    WO2016208370A1