Vehicle glass

Abstract

The present invention suppresses deterioration of an adhesive for fixing an infrared transmissive member to a glass member due to sunlight. A vehicle glass (1) comprises: a glass member (10) in which an opening (19) penetrating from a surface on a first direction side to a surface on a second direction side opposite to the first direction and a light-shielding region (A2a) surrounding the opening are formed; a transmissive member (20) that is disposed inside the opening (19) and transmits far-infrared rays; and a frame member (30) having a holding part (31) that holds the transmissive member (20) and is disposed inside the opening (19) and a fixed part (32) fixed to the glass member (10) around the opening (19) via an adhesive (50). Of the light-shielding region (A2a), an end of a portion covering the adhesive (50) as viewed in plan from the first direction side reaches an end (19e) of a peripheral edge of the opening (19) on a surface on which the light-shielding region (A2a) is provided.

Description

Vehicle glass

[0001] This invention relates to vehicle glass.

[0002] Various sensors may be installed on vehicles, such as automobiles, to improve their safety. Examples of sensors installed on vehicles include cameras, LiDAR (Light Detection and Ranging), millimeter-wave radar, and infrared sensors.

[0003] Infrared radiation is classified into near-infrared (e.g., wavelengths 0.83 μm to 2 μm), mid-infrared (e.g., wavelengths 3 μm to 5 μm), and far-infrared (e.g., wavelengths 8 μm to 13 μm) based on its wavelength range. Infrared sensors that detect these infrared rays include touch sensors, near-infrared cameras, and LiDAR for the near-infrared, gas analysis and mid-infrared spectroscopy (functional group analysis) for the mid-infrared, and night vision and thermoviewers (hereinafter referred to as far-infrared cameras) for the far-infrared.

[0004] By installing a far-infrared camera inside the vehicle, specifically within the wiper's operating area, the camera is protected by the window glass, and dirt and other contaminants can be wiped away, thus ensuring robustness, water resistance, and dust resistance. However, vehicle windows typically do not transmit far-infrared rays with wavelengths of 8 μm to 13 μm. Therefore, Patent Document 1 discloses a window member in which an opening is formed in a part of the window glass and the opening is filled with an infrared-transmitting material.

[0005] UK Patent Application Publication No. 2271139

[0006] As described in Patent Document 1, adhesives are used to fix infrared-transmitting members to openings formed in window glass. When adhesives are exposed to sunlight, they deteriorate due to ultraviolet rays and other factors. Normally, in areas of window glass where it is desired to prevent sunlight from passing through or to conceal them from the outside, a light-shielding film is applied to the glass surface to provide privacy. However, sunlight entering through the gap between the opening and the light-shielding film causes the adhesive to deteriorate.

[0007] The present invention has been made in view of the above problems, and aims to provide vehicle glass that can suppress the deterioration of the adhesive used to fix an infrared-transmitting member to a glass member due to sunlight.

[0008] To solve the above-mentioned problems and achieve the objective, the vehicle glass according to this disclosure comprises a glass member having an opening that penetrates from the surface on the first direction side to the surface on the second direction side opposite to the first direction and a light-shielding region surrounding the opening; a frame member having a far-infrared-transmitting member disposed inside the opening, a holding portion that holds the transmitting member and is disposed inside the opening, and a fixing portion fixed to the glass member around the opening via an adhesive, wherein the end of the portion of the light-shielding region that covers the adhesive in a plan view as seen from the first direction side reaches the end of the periphery of the opening on the surface where the light-shielding region is provided.

[0009] According to the present invention, it is possible to suppress the deterioration of the adhesive used to fix the infrared-transmitting member to the glass member due to sunlight.

[0010] Figure 1 is a schematic diagram showing the vehicle glass according to the first embodiment mounted on a vehicle. Figure 2 is a schematic plan view of the vehicle glass according to the first embodiment. Figure 3 is a cross-sectional view along line A-A in Figure 2. Figure 4 is a cross-sectional view along line B-B in Figure 2. Figure 5 is a diagram showing an example of a configuration when a far-infrared camera is attached to the vehicle glass. Figure 6 is an enlarged cross-sectional view of the area around the far-infrared transmission region in the vehicle glass. Figure 7 is a plan view and a cross-sectional view of the far-infrared transmission unit. Figure 8 is an enlarged cross-sectional view of the area around the boundary between the glass member and the frame member. Figure 9 is a schematic diagram illustrating an example of a method for manufacturing the vehicle glass according to the first embodiment. Figure 10 is an enlarged cross-sectional view of the area around the transmission member and frame member in the vehicle glass according to the second embodiment. Figure 11 is an enlarged cross-sectional view of the area around the transmission member and frame member in the vehicle glass according to the third embodiment. Figure 12 is an enlarged cross-sectional view of the area around the boundary between the glass member and the frame member in the vehicle glass according to the fourth embodiment. Figure 13 is an enlarged cross-sectional view of the area around the boundary between the glass member and the frame member in the vehicle glass according to the fifth embodiment. Figure 14 is an enlarged cross-sectional view of the area around the boundary between the glass member and the frame member in the vehicle glass according to the sixth embodiment. Figure 15 is an enlarged cross-sectional view of the area around the boundary between the glass member and the frame member in the vehicle glass according to the seventh embodiment. Figure 16 is an enlarged cross-sectional view of the area around the boundary between the glass member and the frame member in the vehicle glass according to the eighth embodiment. Figure 17 is a plan view (A) of the first glass substrate on the Z2 direction side, a plan view (B) of the second glass substrate on the Z2 direction side, and a plan view (C) of the glass member on the Z2 direction side in the vehicle glass according to the eighth embodiment.

[0011] Preferred embodiments of the present invention will be described in detail below with reference to the attached drawings. The present invention is not limited by these embodiments, and if there are multiple embodiments, they may be constructed by combining each embodiment. Numerical values ​​include a range of rounding. When a numerical range is indicated by connecting the upper and lower limits with ~, this range includes the upper and lower limits. That is, for example, "X to Y" means that it is X or greater and Y or less. In this embodiment, the lower and upper limits can be combined as appropriate. That is, for example, if a lower limit is listed for a certain parameter and an upper limit is listed for that parameter, the lower limit may be any value selected from the listed lower limits, and the upper limit may be any value selected from the listed upper limits. Furthermore, unless otherwise specified, physical properties and dimensions will be described as values ​​at room temperature, i.e., between 5°C and 35°C.

[0012] (First Embodiment) (Vehicle) Figure 1 is a schematic diagram showing the vehicle glass according to the first embodiment mounted on a vehicle. As shown in Figure 1, the vehicle glass 1 according to the first embodiment is mounted on a vehicle V. The vehicle glass 1 is a window member applied to the windshield of the vehicle V. That is, the vehicle glass 1 is used as the front windshield of the vehicle V, or in other words, as a windshield. Inside the vehicle V, a far-infrared camera CA1 and a visible light camera CA2 are mounted. The inside of the vehicle V refers to, for example, the interior of the vehicle where the driver's seat is located.

[0013] The vehicle glass 1, far-infrared camera CA1, and visible light camera CA2 constitute the camera unit 100. The far-infrared camera CA1 is a camera that detects far-infrared rays. The far-infrared camera CA1 captures a thermal image of the outside of the vehicle V by detecting far-infrared rays from outside the vehicle V. The visible light camera CA2 is a camera that detects visible light. The visible light camera CA2 captures an image of the outside of the vehicle V by detecting visible light from outside the vehicle V. In addition to the far-infrared camera CA1 and the visible light camera CA2, the camera unit 100 may further include, for example, LiDAR (Light Detection and Ranging) or millimeter-wave radar. Here, far-infrared rays refer to, for example, electromagnetic waves in the wavelength band of 8 μm to 13 μm, and visible light refers to, for example, electromagnetic waves in the wavelength band of 380 nm to 830 nm.

[0014] (Vehicle Glass) Figure 2 is a schematic plan view of vehicle glass according to the first embodiment. Figure 3 is a cross-sectional view along line A-A in Figure 2. Figure 4 is a cross-sectional view along line B-B in Figure 2. As shown in Figure 2, the upper edge of the vehicle glass 1 will be referred to as the upper edge portion 1a, the lower edge as the lower edge portion 1b, one side edge as the side edge portion 1c, and the other side edge as the side edge portion 1d. The upper edge portion 1a is the edge portion located on the vertically upper side when the vehicle glass 1 is mounted on the vehicle V. The lower edge portion 1b is the edge portion located on the vertically lower side when the vehicle glass 1 is mounted on the vehicle V. The side edge portion 1c is the edge portion located on one side when the vehicle glass 1 is mounted on the vehicle V. The side edge portion 1d is the edge portion located on the other side when the vehicle glass 1 is mounted on the vehicle V.

[0015] Hereinafter, among the directions parallel to the surface of the vehicle glass 1, the direction from the upper edge 1a to the lower edge 1b will be defined as the Y direction, and the direction from the side edge 1c to the side edge 1d will be defined as the X direction. In this embodiment, the X direction and the Y direction are orthogonal. The direction perpendicular to the surface of the vehicle glass 1, that is, the thickness direction of the vehicle glass 1, will be defined as the Z direction. Furthermore, one direction along the Z direction will be defined as the Z1 direction (first direction), and the direction opposite to the Z1 direction will be defined as the Z2 direction (second direction). The Z1 direction is, for example, the direction from the inside to the outside of the vehicle V when the vehicle glass 1 is mounted on the vehicle V. The Z2 direction is, for example, the direction from the outside to the inside of the vehicle V when the vehicle glass 1 is mounted on the vehicle V. The X direction and the Y direction are along the surface of the vehicle glass 1, but for example, if the surface of the vehicle glass 1 is curved, they may be directions that are tangent to the surface of the vehicle glass 1 at the center point O of the vehicle glass 1. The center point O is the central position of the vehicle glass 1 when viewed from the Z direction.

[0016] The vehicle glass 1 has a light-transmitting region A1 and a light-blocking region A2. The light-transmitting region A1 is the central part of the vehicle glass 1 when viewed from the Z direction. The light-transmitting region A1 is the region that ensures the driver's field of view. The light-transmitting region A1 is the region that transmits visible light. The light-blocking region A2 is the region that is formed around the light-transmitting region A1 when viewed from the Z direction. The light-blocking region A2 is the region that blocks visible light and ultraviolet light (ultraviolet light). Within the light-blocking region A2a, which is the part on the upper edge 1a side of the light-blocking region A2, a far-infrared transmitting region B and a visible light transmitting region C are formed.

[0017] The far-infrared transmission region B is a region that transmits far-infrared rays and is the region where the far-infrared camera CA1 is installed. That is, the far-infrared camera CA1 is installed in a position that overlaps with the far-infrared transmission region B when viewed from the optical axis direction of the far-infrared camera CA1. The visible light transmission region C is a region that transmits visible light and is the region where the visible light camera CA2 is installed. That is, the visible light camera CA2 is installed in a position that overlaps with the visible light transmission region C when viewed from the optical axis direction of the visible light camera CA2. Thus, in this embodiment, the far-infrared transmission region B (the opening 19 described later) is formed within the light-shielding region A2a, which is the part of the light-shielding region A2 that is on the upper edge 1a side of the center point O (for example, in the vicinity of the upper edge 1a). However, the light-shielding region A2 and the far-infrared transmission region B (the opening 19 described later) are not limited to being formed on the upper edge 1a side of the center point O, but may be formed in any region on the surface of the glass member 10. For example, the light-shielding region A2 and the far-infrared transmission region B (the opening 19 described later) may be formed at a position on the lower edge 1b side of the center point O of the glass member 10 (for example, in the vicinity of the lower edge 1b). The same applies to the visible light transmission region C.

[0018] As described above, the light-shielding region A2 has a far-infrared transmitting region B and a visible light transmitting region C. Therefore, the light-shielding region A2 blocks far-infrared rays in areas other than where the far-infrared transmitting region B is formed, and blocks visible light in areas other than where the visible light transmitting region C is formed. The far-infrared transmitting region B and the visible light transmitting region C are surrounded by a light-shielding region A2a. This surrounding light-shielding region A2a is preferable because it protects the various sensors from sunlight. It is also preferable from a design standpoint because the wiring of the various sensors is not visible from outside the vehicle. A detailed explanation of the far-infrared transmitting region B and the visible light transmitting region C will be given later.

[0019] As shown in Figure 3, the vehicle glass 1 comprises a glass member 10. The glass member 10 is the main body portion of the vehicle glass 1 that constitutes the windshield of the vehicle V. The glass member 10 may be single-pane glass or laminated glass, but in this embodiment, the glass member 10 is laminated glass in which a first glass base 12 provided on the outside of the vehicle and a second glass base 14 provided on the inside of the vehicle are laminated with an intermediate layer 16 in between. Specifically, the glass member 10 comprises a first glass base 12, a second glass base 14, an intermediate layer 16, and a light-shielding layer 18. In the vehicle glass 1, the first glass base 12, the intermediate layer 16, the second glass base 14, and the light-shielding layer 18 are laminated in this order in the Z2 direction. The first glass base 12 and the second glass base 14 are fixed (bonded) to each other via the intermediate layer 16.

[0020] The glass substrate may be inorganic glass or organic glass. Examples of inorganic glass include soda-lime glass, aluminosilicate glass, borosilicate glass, alkali-free glass, and quartz glass, which can be used without particular restriction. Among these, soda-lime glass is particularly preferred in terms of manufacturing cost and moldability. For example, in the case of inorganic glass, glass plates formed by the float process are preferred. When the first glass substrate 12 and the second glass substrate 14 are inorganic glass, the first glass substrate 12 and the second glass substrate 14 may be either untempered glass or tempered glass. Tempered glass may be either physically tempered glass or chemically tempered glass. Untempered glass is obtained by forming molten glass into a plate and slowly cooling it. Tempered glass is obtained by forming a compressive stress layer on the surface of untempered glass. Tempered glass may be either physically tempered glass or chemically tempered glass. In the case of physically strengthened glass, the glass surface may be strengthened by creating a compressive stress layer on the glass surface due to the temperature difference between the glass surface and the inside of the glass, through operations other than slow cooling, such as air-cooled strengthening, where a uniformly heated glass plate is rapidly cooled from a temperature near its softening point during bending. In the case of chemically strengthened glass, the glass surface may be strengthened after bending by creating compressive stress on the glass surface by methods such as ion exchange. Known molding techniques such as gravity molding, press molding, and roller molding may be used for bending the glass substrate. Glass that absorbs ultraviolet or infrared rays may also be used. Furthermore, the first glass substrate 12 and the second glass substrate 14 may be transparent or colored. The plate thickness of the first glass substrate 12 and the second glass substrate 14 is not particularly limited, but is preferably 0.3 mm or more, more preferably 0.5 mm or more, even more preferably 1 mm or more, even more preferably 1.5 mm or more, and most preferably 2 mm or more. Furthermore, the plate thickness of the first glass substrate 12 and the second glass substrate 14 is preferably 5 mm or less, more preferably 4 mm or less, and even more preferably 3 mm or less. The intermediate layer 16 is an adhesive layer that bonds the first glass substrate 12 and the second glass substrate 14.As the intermediate layer 16, known materials such as polyvinyl butyral (hereinafter also referred to as PVB) modified material, ethylene-vinyl acetate copolymer (EVA) material, urethane resin material, and vinyl chloride resin material can be used. The intermediate layer 16 may also contain functional particles such as ultraviolet absorbers, infrared absorbers, adhesion enhancers, antioxidants, and light stabilizers. The intermediate layer 16 may be transparent or colored. The intermediate layer 16 may also have a multilayer structure of two or more layers. More specifically, the first glass substrate 12 includes one surface 12A (the surface on the Z1 direction) and the other surface 12B (the surface on the Z2 direction), and the other surface 12B is in contact with one surface 16A (the surface on the Z1 direction) of the intermediate layer 16 and is fixed (adhered) to the intermediate layer 16. The second glass substrate 14 includes one surface 14A (the surface facing the Z1 direction) and the other surface 14B (the surface facing the Z2 direction), and the one surface 14A is in contact with the other surface 16B (the surface facing the Z2 direction) of the intermediate layer 16 and is fixed (bonded) to the intermediate layer 16. Thus, the vehicle glass 1 is a laminated glass in which the first glass substrate 12 and the second glass substrate 14 are laminated. However, the vehicle glass 1 is not limited to laminated glass, and may be a configuration that includes only one of the first glass substrate 12 and the second glass substrate 14 (i.e., a single-pane glass). In this case, the intermediate layer 16 may not be provided. The intermediate layer 16 may contain a heat-generating film (PET substrate), a heating device, an antenna, a liquid crystal device, a dimming device, an image projection layer, an emitting layer, a heat-reflective layer, etc. Hereinafter, when the first glass substrate 12 and the second glass substrate 14 are not distinguished, they will be referred to as glass substrates. When the vehicle glass 1 is installed in a vehicle, the vehicle glass 1 may have a curved shape that protrudes outwards from the vehicle. The curved shape of the vehicle glass 1 from the periphery to the center may be a curved shape in only one direction, a curved shape in two perpendicular directions, or a curved shape in three or more directions. The thickness of the vehicle glass 1 is not particularly limited, but is preferably 3 mm or more, more preferably 4 mm or more, even more preferably 4.5 mm or more, even more preferably 5 mm or more, and most preferably 6 mm or more.Furthermore, the thickness of the vehicle glass 1 is preferably 10 mm or less, more preferably 9 mm or less, even more preferably 8 mm or less, and most preferably 7 mm or less. In this embodiment, the upper and lower limits can be combined as appropriate. Also, if the vehicle glass 1 is laminated glass, the above thickness may be read as the total thickness of the laminated glass.

[0021] The light-shielding layer 18 is a layer that shields visible light (wavelength 380 nm to 830 nm). The light-shielding layer 18 may be provided in a band shape along the periphery of the vehicle glass 1. This suppresses the deterioration of aesthetics due to refraction of the glass substrate. The light-shielding layer 18 is also a layer that shields ultraviolet rays (wavelength 300 nm to 380 nm). This suppresses the exposure of components that are easily degraded by ultraviolet rays (for example, the intermediate layer 16 and the adhesive 50 described later) to sunlight. Preferably, the light-shielding layer 18 also shields infrared rays (wavelength 830 nm to 2000 nm). Shielding is achieved, for example, by absorbing the target light ray. For example, the visible light transmittance and ultraviolet light transmittance of the light-shielding layer 18 are 5% or less, preferably 3% or less, more preferably 1% or less, and even more preferably substantially 0%. The degree of shielding may vary depending on the wavelength of the light ray. The transmittance of light at each wavelength can be measured, for example, using an ultraviolet-visible-near-infrared spectrophotometer (manufactured by Hitachi High-Tech Corporation, product name: U-4100).

[0022] The light-shielding layer 18 is configured as a substantially opaque layer. For example, a ceramic light-shielding layer or a light-shielding film can be used as the light-shielding layer 18. For example, a ceramic layer made of a conventionally known material such as a black ceramic layer can be used as the ceramic light-shielding layer. For example, a light-shielding polyethylene terephthalate (PET) film, a light-shielding polyethylene naphthalate (PEN) film, a light-shielding polymethyl methacrylate (PMMA) film, etc. can be used as the light-shielding film. The light-shielding layer 18 includes one surface 18A (the surface on the Z1 direction side) and the other surface 18B (the surface on the Z2 direction side). In the example of Figure 3, one surface 18A is fixed in contact with the other surface 14B of the second glass substrate 14, but it is not limited to this. For example, the light-shielding layer 18 may be provided on the Z2 direction side of the surface 12B of the first glass substrate 12. In other words, the light-shielding layer 18 may be provided on the surface 14B of the second glass substrate 14, on the surface 12B of the first glass substrate 12, or on both surfaces 14B and 12B.

[0023] In the first embodiment, the side of the vehicle glass 1 on which the light-shielding layer 18 is provided is the interior side (Z2 direction side), and the first glass substrate 12 is the exterior side (Z1 direction side). However, it is not limited to this, and the light-shielding layer 18 may be provided on the exterior side of the vehicle V. If the vehicle glass 1 is made of laminated glass of a first glass substrate 12 and a second glass substrate 14, the light-shielding layer 18 may be formed between the first glass substrate 12 and the second glass substrate 14. That is, the light-shielding layer 18 may be formed on, for example, the surface 12B or the surface 14A, or a part of the intermediate layer 16 may be the light-shielding layer 18. If a part of the intermediate layer 16 is the light-shielding layer 18, a part of the intermediate layer 16 may be colored with a dark pigment, or a layer containing a dark pigment may be provided in a part of the intermediate layer 16.

[0024] The light-shielding region A2 is formed by providing a light-shielding layer 18 on the glass member 10. In other words, the light-shielding region A2 is the region in which the glass member 10 is equipped with the light-shielding layer 18. Specifically, the light-shielding region A2 is the region in which the first glass substrate 12, the intermediate layer 16, the second glass substrate 14, and the light-shielding layer 18 are laminated. On the other hand, the light-transmitting region A1 is the region in which the glass member 10 is not equipped with the light-shielding layer 18. Specifically, the light-transmitting region A1 is the region in which the first glass substrate 12, the intermediate layer 16, and the second glass substrate 14 are laminated, but the light-shielding layer 18 is not laminated. As described above, the light-shielding region A2 blocks ultraviolet rays with the light-shielding layer 18. The ultraviolet transmittance of the light-shielding region A2 is lower than that of the region without the light-shielding layer 18 (light-transmitting region A1, far-infrared transmitting region B, and visible light transmitting region C).

[0025] As shown in Figure 4, the visible light transmission region C, like the light-transmitting region A1, is a region in the Z direction where the glass member 10 does not have a light-shielding layer 18. That is, the visible light transmission region C is a region where the first glass substrate 12, the intermediate layer 16, and the second glass substrate 14 are laminated, and the light-shielding layer 18 is not laminated.

[0026] (Far-infrared transmitting unit) As shown in Figure 3, the glass member 10 has an opening 19 that penetrates from the inner surface (surface 18B in the Z2 direction) to the outer surface (surface 12A in the Z1 direction). The opening 19 is formed in the light-shielding region A2a. The light-shielding region A2a surrounds the opening 19. A far-infrared transmitting unit U is provided inside the opening 19. The region where the opening 19 is formed and the far-infrared transmitting unit U is provided is the far-infrared transmitting region B. The light-shielding layer 18 is not provided in the far-infrared transmitting region B. That is, in the far-infrared transmitting region B, the first glass substrate 12, the intermediate layer 16, the second glass substrate 14, and the light-shielding layer 18 are not provided, and the far-infrared transmitting unit U is provided in the formed opening 19.

[0027] The far-infrared transmission unit U comprises a transmission member 20 and a frame member 30 provided on the periphery of the transmission member 20. In the following description, when the transmission member 20 is viewed from the Z direction, the direction toward the geometric center of the opening 19 may be described as the radially inward direction, and the direction away from the geometric center may be described as the radially outward direction.

[0028] (Transmitting Member) The transmitting member 20 is positioned inside the opening 19 and transmits far-infrared rays. The average transmittance of far-infrared rays with wavelengths of 8 μm to 13 μm is higher for the transmitting member 20 than for the glass member 10. The average transmittance of far-infrared rays with wavelengths of 8 μm to 13 μm is higher for the transmitting member 20 than for the frame member 30. Preferably, the average transmittance of far-infrared rays with wavelengths of 8 μm to 13 μm for the transmitting member 20 is 25% or more, more preferably 40% or more, even more preferably 50% or more, even more preferably 70% or more, and particularly preferably 85% or more. Furthermore, it is preferable that the average transmittance of far-infrared rays with wavelengths of 8 μm to 13 μm for the transmitting member 20 is 100% or less. In order to make the average transmittance of far-infrared rays 85% or more, it is preferable to provide an anti-reflective coating. When the average transmittance of far-infrared rays is within this numerical range, far-infrared rays are transmitted appropriately, and the performance of the far-infrared camera CA1 can be fully demonstrated. Furthermore, the transmittance of far-infrared rays can be measured, for example, using a Fourier transform infrared spectrometer (manufactured by ThermoScientific, product name: Nicolet iS10).

[0029] The material of the permeable member 20 is not particularly limited, but examples include ZnS, Ge, Si, and chalcogenide glass. A preferred composition of chalcogenide glass is one in which, in atomic percent, Ge + Ga: 7% to 25%, Sb: 0% to 35%, Bi: 0% to 20%, Zn: 0% to 20%, Sn: 0% to 20%, Si: 0% to 20%, La: 0% to 20%, S + Se + Te: 55% to 80%, Ti: 0.005% to 0.3%, Li + Na + K + Cs: 0% to 20%, and F + Cl + Br + I: 0% to 20%. Preferably, this glass has a glass transition temperature (Tg) of 140°C to 550°C. The permeable member 20 is more preferably composed mainly of at least one of Si and Ge. Here, "main component" may refer to a content of 50% by mass or more of the permeable member 20 as a whole.

[0030] The transmissive member 20 has a first surface 20A on the vehicle exterior side (Z1 direction side), a second surface 20B on the vehicle interior side (Z2 direction side), and an outer peripheral end face 21. The transmissive member 20 may be coated on the first surface 20A or the second surface 20B. For example, an antireflection film may be provided on the first surface 20A. As the antireflection film, an antireflection film of 3 to 12 layers is preferable, and the material is not particularly limited, but Ge, Si, ZnS, ZnSe, As ｘ S ｙ 、As ｘ Se ｙ 、metal oxides (Al ｘ O ｙ 、Bi ｘ O ｙ 、CeO ｘ 、CuO, HfO ｘ 、MgO, SiO, SiO ｘ 、NiO, TiO, TiO ｘ 、Ti ｘ O ｙ 、Y ｘ O ｙ 、ZrO ｘ ), hydrocarbon, diamond-like carbon (DLC), metal fluoride (MgF ｘ 、CaF ｘ 、SrF ｘ 、BaF ｘ 、PbF ｘ 、LaF ｘ 、YF ｘ are preferable (x, y are arbitrary positive numbers). The layer of the antireflection film on the Z1 direction side is preferably a film having a Mohs hardness of 7 or more and a high transmittance of far infrared rays from the viewpoint of scratch resistance. The layer of the antireflection film on the Z1 direction side is particularly preferably a ZrO ｘ film.

[0031] The shape of the transmissive member 20 is not particularly limited, but it is preferably a plate shape that matches the shape of the opening 19. That is, for example, when the opening 19 is circular, the transmissive member 20 is preferably a disc shape (cylindrical shape). Further, from the viewpoint of design, the surface shape of the transmissive member 20 on the Z1 direction side may be processed to match the curvature of the outer surface shape of the first glass substrate 12. Furthermore, for reasons such as achieving both a wider viewing angle of the far-infrared camera CA1 and an improvement in mechanical characteristics, the transmissive member 20 may be formed into a lens shape. With such a configuration, it is preferable because even if the area of the transmissive member 20 is small, far-infrared rays can be efficiently condensed. In this case, the number of lens-shaped transmissive members 20 is preferably 1 to 3, and typically 1 is preferable. Further, the lens-shaped transmissive member 20 is preferably pre-aligned and modularized, and is particularly preferably integrated with a housing or bracket 40 that adheres the far-infrared camera CA1 to the vehicle glass 1.

[0032] In the vehicle glass 1 of the first embodiment, the opening 19 on the Z2 direction side surface (surface 18B) has the same configuration as the opening 19 on the Z1 direction side surface (surface 12A), and the shape of the transmissive member 20 is also made the same as the area on the Z2 direction side surface and the Z1 direction side surface in accordance with this. In other words, there is no step provided on the inner wall of the opening 19, and the inner wall of the opening 19 extends along the thickness direction of the vehicle glass 1. By adopting such a configuration, the manufacture of the glass member 10 and the transmissive member 20 becomes easy. Furthermore, when the glass member 10 is a laminated glass including the first glass substrate 12 (on the Z1 direction side) and the second glass substrate 14 (on the Z2 direction side), the opening 19 is formed by overlapping the first opening 12a of the first glass substrate 12 and the second opening 14a of the second glass substrate 14. In this case, the first opening 12a of the first glass substrate 12 may be overlapped with the second opening 14a of the second glass substrate 14, and the transmissive member 20 having a size corresponding to the first opening 12a of the first glass substrate 12 may be disposed in the first opening 12a of the first glass substrate 12.

[0033] From the viewpoint of strength, the thickness of the permeable member 20 is preferably 1.0 mm or more, more preferably 1.5 mm or more, and even more preferably 2.0 mm or more. The upper limit of the thickness of the permeable member 20 is not particularly limited, but is usually 5.0 mm or less. Here, thickness refers to the length of the permeable member 20 in the Z direction.

[0034] (Frame Member) The frame member 30 is positioned between the inner circumferential surface of the opening 19 of the glass member 10 and the transparent member 20. The frame member 30 holds the outer periphery of the transparent member 20 and is attached to the opening 19. The shape of the frame member 30 is not particularly limited, but if the transparent member 20 is disc-shaped, it is formed in a cylindrical shape and positioned on the periphery of the transparent member 20. The frame member 30 has a holding portion 31 that holds the transparent member 20 and is positioned inside the opening 19, and a fixing portion 32 that is fixed to the glass member 10 around the opening 19 via adhesive 50. The frame member 30 may be composed of a single member or of multiple members. A frame member 30 composed of multiple members may, for example, include a first member including the holding portion 31 and a second member including the fixing portion 32. A frame member 30 composed of multiple members may, for example, be composed of a first member on the Z1 direction side and a second member on the Z2 direction side. The frame member 30 may be composed of three or more members. In the first embodiment, the frame member 30 is composed of a single member including a holding portion 31 and a fixing portion 32.

[0035] The holding portion 31 is formed in a cylindrical shape surrounding the peripheral edge portion of the transmissive member 20. The holding portion 31 is disposed between the transmissive member 20 and the glass member 10. The outer peripheral surface of the holding portion 31 faces the inner peripheral surface of the opening 19 of the glass member 10. The inner peripheral surface of the holding portion 31 faces the outer peripheral end surface 21 of the transmissive member 20. A recess 31A (see FIG. 6) for holding the outer peripheral portion of the transmissive member 20 is formed at the vehicle-outward end portion of the inner peripheral surface of the holding portion 31. The transmissive member 20 fits into the recess 31A. An adhesive may be provided between the outer peripheral portion of the transmissive member 20 and the recess 31A. The length of the holding portion 31 in the Z direction is equal to or greater than the total thickness of the glass member 10. The surface of the holding portion 31 in the Z1 direction is exposed outwardly in the vehicle in the opening 19. The end portion of the holding portion 31 in the Z2 direction is connected to the fixing portion 32. The surface of the holding portion 31 in the Z1 direction constitutes the surface 30A on the Z1 direction side of the entire frame member 30. The surface 30A on the Z1 direction side of the frame member 30 is located radially inward of the inner peripheral edge of the opening 19 on the surface 12A on the Z1 direction side of the glass member 10. That is, the surface 30A on the Z1 direction side of the frame member 30 is arranged in the radial direction of the opening 19 without covering the surface 12A on the Z1 direction side of the glass member 10. In other words, the frame member 30 does not overlap with the surface 12A on the Z1 direction side of the glass member 10 in the Z1 direction.

[0036] The fixing portion 32 is formed on the Z2 direction side with respect to the holding portion 31. The fixing portion 32 extends radially outward from the end portion of the holding portion 31 in the Z2 direction. The fixing portion 32 is provided on the entire outer peripheral surface of the holding portion 31 and is ring-shaped (flange-shaped). The fixing portion 32 extends from the outer peripheral surface of the holding portion 31 to the radially outer side of the inner peripheral surface of the opening 19 of the glass member 10. That is, the outer dimension of the fixing portion 32 is larger than the opening 19. When the frame member 30 is attached to the glass member 10, the fixing portion 32 is disposed on the Z2 direction side with respect to the surface (surface 18B of the light shielding layer 18) on the vehicle-inward side of the glass member 10 and faces the surface 18B. An adhesive material 50 is provided between the fixing portion 32 and the surface 18B. The frame member 30 is attached to the opening 19 of the glass member 10 by the adhesive material 50 at the fixing portion 32.

[0037] The constituent material of the frame member 30 is not particularly limited. At least a portion of the frame member 30 may be made of resins such as ABS (Acrylonitrile butadiene styrene) resin, AES (Acrylonitrile ethylene styrene) resin, rigid polyvinyl chloride (rigid PVC), polystyrene (PS), polyamide (PA), polycarbonate (PC), polyphenylene sulfide (PPS), and polytetrafluoroethylene (PTFE). When the frame member 30 is made of a thermoplastic resin such as ABS, AES, or rigid polyvinyl chloride, a molding method such as injection molding can be applied. At least a portion of the frame member 30 may be formed from an elastomer such as ethylene propylene monomer (EPDM), flexible polyvinyl chloride (flexible PVC), thermoplastic polyvinyl elastomer (TPVC), thermoplastic polyethylene elastomer (TPE), thermoplastic polyamide elastomer (TPAE), fluorinated ethylene propylene (FEP), vinylidene fluoride fluororubber (FKM), tetrafluoroethylene-purple vinyl ether fluororubber (FFKM), or silicone rubber. Here, FKM and FFKM are elastomers defined in ASTM:D1418. By using an elastomer as a constituent material of the frame member 30, the watertightness between the glass member 10 and the permeable member 20 can be improved.Furthermore, at least a portion of the frame member 30 may be formed from a fluororesin such as ETFE (Ethylene tetrafluoroethylene) or PFA (Perfluoroalkoxy alkanes). ETFE is a copolymer having units derived from ethylene and units derived from tetrafluoroethylene. ETFE may further contain units derived from a monomer having adhesive functional groups as a third component. PFA is a copolymer having units derived from tetrafluoroethylene and units derived from perfluoro(alkyl vinyl ether). PFA may further contain units derived from a monomer having adhesive functional groups as a third component. ETFE and PFA are preferred as constituent materials for the frame member 30 due to their excellent moldability, and the adhesion is further improved by including an adhesive third component. As the monomer having adhesive functional groups, monomers having carboxyl groups, acid anhydride groups, or carboxylic acid halide groups are preferred, and unsaturated dicarboxylic acid anhydrides are more preferred. Examples of unsaturated dicarboxylic acid anhydrides include itaconic anhydride, citraconic anhydride, 5-norbornene-2,3-dicarboxylic acid anhydride (Hymic anhydride), and maleic anhydride. Monomers having adhesive functional groups may have one adhesive functional group alone or two or more. ETFE may optionally have units derived from ethylene, TFE, and other monomers other than monomers having adhesive functional groups. Examples of other monomers include fluoroolefins (excluding tetrafluoroethylene) and fluoro(alkyl vinyl ethers). PFA may optionally have units derived from TFE, perfluoro(alkyl vinyl ethers), and other monomers other than monomers having adhesive functional groups. Examples of other monomers include fluoroolefins (excluding tetrafluoroethylene). Furthermore, the frame member 30 is preferably black. This improves aesthetics.

[0038] The adhesive 50 between the frame member 30 and the glass member 10 is formed of an adhesive such as a urethane adhesive or a modified silicone adhesive. This improves load-bearing capacity, heat resistance, and cold resistance, and improves adhesive strength and shear strength. The adhesive 50 may also be an adhesive tape in which adhesive is applied to both sides of a tape-shaped base material. The adhesive 50 is provided along the periphery of the opening 19 in the fixing part 32. The adhesive 50 is formed in a ring shape over the entire circumference of the fixing part 32, for example. This ensures watertightness between the inner circumferential surface of the opening 19 and the frame member 30. The adhesive 50 may be formed discontinuously at multiple locations along the periphery of the opening 19.

[0039] (Far-infrared transmission region) Next, the far-infrared transmission region B will be described. As shown in Figure 2, the far-infrared transmission region B is formed near the upper edge 1a of the vehicle glass 1 in the Y direction and near the center of the vehicle glass 1 in the X direction. The opening 19 and the transmission member 20 are formed near the upper edge 1a of the vehicle glass 1 in the Y direction and near the center of the vehicle glass 1 in the X direction.

[0040] As shown in Figure 3, the transmissive member 20 of the far-infrared transmission region B has a length DA of the longest straight line connecting any two points in the plane on the Z1 side that is 80 mm or less. The length DA is preferably 70 mm or less, more preferably 65 mm or less, and even more preferably 50 mm or less. The length DA is preferably 25 mm or more, more preferably 30 mm or more, and even more preferably 35 mm or more. The opening 19 of the far-infrared transmission region B preferably has a length DB of the longest straight line connecting any two points in the plane on the Z1 side that is 84 mm or less. The length DB is more preferably 74 mm or less, even more preferably 69 mm or less, and even more preferably 54 mm or less. The length DB is preferably 29 mm or more, more preferably 34 mm or more, and even more preferably 39 mm or more. By setting the length DA of the transparent member 20 and the length DB of the opening 19 within this range, it is possible to maintain the image quality of the far-infrared camera CA1 while suppressing a decrease in the strength of the vehicle glass 1 and suppressing the amount of transparency distortion around the opening 19. Furthermore, considering the expansion of each material within the operating temperature range, appropriate lengths DA and DB are determined so that distortion does not occur. In addition, a gap may be provided in advance as a countermeasure against distortion due to expansion. If the shape of the Z1-side surface of the transparent member 20 is circular, lengths DA and DB correspond to the diameter of the Z1-side surface. Here, lengths DA and DB refer to the lengths of the vehicle glass 1 when it is mounted on the vehicle V. For example, if the glass is bent to form the shape for mounting on the vehicle V, lengths DA and DB will be the lengths after bending. The same applies to the explanation of dimensions and positions other than lengths DA and DB unless otherwise specified.

[0041] (Visible Light Transmission Region) Next, the visible light transmission region C will be described. As shown in Figure 2, it is preferable that the visible light transmission region C be located near the far-infrared transmission region B. Specifically, the center of the far-infrared transmission region B as viewed from the Z direction is defined as the center point OB, and the center of the visible light transmission region C as viewed from the Z direction is defined as the center point OC. If the shortest distance between the far-infrared transmission region B (aperture 19) and the visible light transmission region C as viewed from the Z direction is defined as distance L, then it is preferable that distance L is greater than 0 mm and 100 mm or less, and more preferably 10 mm or more and 80 mm or less. By positioning the visible light transmission region C within this range relative to the far-infrared transmission region B, it is possible to capture images at close range with the far-infrared camera CA1 and the visible light camera CA2, while suppressing the amount of transmission distortion in the visible light transmission region C, and enabling the visible light camera CA2 to capture images appropriately. By capturing images of nearby locations with the far-infrared camera CA1 and the visible-light camera CA2, the processing load on the data obtained from each camera is reduced, and the routing of power and signal cables is also optimized.

[0042] It is preferable that the visible light transmission region C and the far-infrared transmission region B are located side by side in the X direction. That is, it is preferable that the visible light transmission region C is not located on the Y-direction side of the far-infrared transmission region B, but is aligned with the far-infrared transmission region B in the X direction. By arranging the visible light transmission region C side by side with the far-infrared transmission region B in the X direction, the visible light transmission region C can be positioned near the upper edge 1a. Therefore, the driver's field of view in the light-transmitting region A1 can be appropriately secured.

[0043] Preferably, the visible light transmission region C is located near the upper edge 1a in the Y direction and near the far infrared transmission region B in the X direction, similar to the far infrared transmission region B. By positioning the visible light transmission region C in this location, it is possible to capture images of close positions with the far infrared camera CA1 and the visible light camera CA2, while suppressing the amount of transmission distortion in the visible light transmission region C, allowing the visible light camera CA2 to capture images appropriately.

[0044] (Camera Unit Configuration) Next, the configuration of the camera unit 100, more specifically, an example of the configuration when the far-infrared camera CA1 is attached to the vehicle glass 1, will be described. Figure 5 is a diagram showing an example of the configuration when the far-infrared camera is attached to the vehicle glass.

[0045] The far-infrared camera CA1 is mounted on the vehicle glass 1 so as to capture an external thermal image through the far-infrared transmission region B of the vehicle glass 1. The far-infrared camera CA1 is installed inside the vehicle V (inside the vehicle) at a position facing the far-infrared transmission region B. The type of far-infrared camera CA1 is not particularly limited, and any known far-infrared camera can be used. As shown in Figure 5, the far-infrared camera CA1 is mounted on the vehicle glass 1 by, for example, a bracket 40. The far-infrared camera CA1 is usually mounted so that the optical axis LX is approximately horizontal.

[0046] The visible light camera CA2 is mounted on the vehicle glass 1 so that it can capture images of the outside through the visible light transmission area C of the vehicle glass 1. The visible light camera CA2 is installed inside the vehicle V (inside the vehicle) at a position facing the visible light transmission area C. It is preferable that the visible light camera CA2 is mounted so that the optical axis LX of the far infrared camera CA1 and the optical axis of the visible light camera CA2 are approximately parallel. Approximately parallel is a concept that includes not only cases where these optical axes are perfectly parallel, but also cases where they are slightly deviated from parallel by an error margin. By doing so, the optical axis LX of the far infrared camera CA1 and the center of the field of view of the visible light camera CA2 almost coincide, which is preferable when combining images obtained from these cameras for information processing.

[0047] (Fixing structure of frame member) Next, the details of the fixing structure of the frame member 30 will be described. Figure 6 is an enlarged cross-sectional view of the area around the far-infrared transmission region in the vehicle glass. Figure 7 is a plan view and a cross-sectional view of the far-infrared transmission unit. Figure 8 is an enlarged cross-sectional view of the area around the boundary between the glass member and the frame member.

[0048] In the vehicle glass 1 according to the first embodiment, as described above, the frame member 30 that holds the transparent member 20 is fixed to the periphery of the opening 19 in the glass member 10 by adhesive 50. Specifically, the surface 32A of the fixing portion 32 of the frame member 30 facing outward faces the inward surface of the glass member 10 around the opening 19 in the Z direction, and these surfaces are fixed to each other by adhesive 50. In this embodiment, the inward surface of the glass member 10 around the opening 19 is the inward (Z2 direction) surface 18B of the light-shielding layer 18. The adhesive 50 hardens while in contact with the surface 32A and the surface 18B, respectively, thereby fixing the frame member 30 to the glass member 10.

[0049] In the example shown in Figure 7, the opening 19 of the glass member 10 is circular, and the transparent member 20 placed inside the opening 19 is also circular. The holding portion 31 of the frame member 30 that holds the transparent member 20 is cylindrical along the inner circumference of the opening 19. The outer circumferential surface of the holding portion 31 faces the inner circumferential surface of the opening 19 in the radial direction. The fixing portion 32 is a flange that extends radially outward from the Z2 end of the holding portion 31 and is ring-shaped. The outer surface 32A of the fixing portion 32 is a flat surface that faces the inner surface (surface 18B) of the glass member 10. The radial outer end of the fixing portion 32 is contained within the light-shielding region A2a.

[0050] In the first embodiment, the adhesive 50 is provided around the entire circumference of the opening 19. The adhesive 50 is formed in a continuous ring shape that surrounds the periphery of the opening 19. The adhesive 50 is in close contact with the inner surface (surface 18B) of the glass member 10 and also in close contact with the surface 32A of the fixing portion 32 around the entire circumference of the opening 19. As a result, the boundary between the glass member 10 and the frame member 30 is completely sealed by the adhesive 50, improving watertightness.

[0051] Furthermore, it is preferable that the surface 32A of the fixing portion 32 has an arithmetic mean roughness Ra value of 0.1 μm or more. Preferably, the arithmetic mean roughness Ra of the surface 32A is 0.5 μm or more, and more preferably 1 μm or more. This improves the wettability of the adhesive 50 on the surface 32A of the fixing portion 32, increases the contact area between the fixing portion 32 and the adhesive 50, and thus improves adhesive reliability. Note that the arithmetic mean roughness Ra refers to the arithmetic mean roughness Ra specified in JIS B 0601:2001.

[0052] The adhesive 50 deteriorates faster when exposed to sunlight, particularly ultraviolet rays contained in sunlight. To ensure the service life of the vehicle glass 1 and improve adhesive reliability, it is important to suppress the exposure of the adhesive 50 to sunlight. By making the area around the opening 19 a light-shielding region A2a by the light-shielding layer 18, the irradiation of sunlight to the adhesive 50 is suppressed. However, due to manufacturing variations, it is usually difficult to form the light-shielding layer so that it is in contact with the edge of the peripheral portion, such as the outer edge of the glass plate or the edge of the opening formed in the glass plate. In other words, when forming a light-shielding layer on the surface of the glass plate, there are various error factors such as dimensional errors of the glass plate, shape errors of the light-shielding layer, and errors in the alignment between the light-shielding layer forming device and the glass plate. For this reason, the target value (coordinate) of the position where the light-shielding layer is formed is usually set to be separated from the edge of the peripheral portion by a dimensional tolerance. As a result, a small gap is formed between the edge of the peripheral portion of the opening and the opening-side edge of the light-shielding layer. Because this gap is not covered by the light-blocking layer, it becomes a pathway for sunlight to enter the adhesive.

[0053] Therefore, in the first embodiment, the light-shielding layer 18 is formed in such a manner that it contacts the end portion 19e of the periphery of the opening 19, regardless of dimensional tolerances. That is, in the vehicle glass 1 according to the first embodiment, the end portion of the light-shielding region A2a that covers the adhesive 50 in a plan view from the Z1 direction reaches the end portion 19e of the periphery of the opening 19 on the surface where the light-shielding region A2a is provided. Specifically, as shown in Figure 6, the position of the inner circumferential end surface 18E of the portion of the light-shielding layer 18 surrounding the opening 19 coincides with the position of the end portion 19e of the periphery of the opening 19 on the surface 14B where the light-shielding layer 18 is provided, in the radial direction of the opening 19. As a result, no gap is formed between the periphery of the opening 19 and the light-shielding region A2a that allows sunlight to pass through, so that the adhesive 50 for fixing the transparent member 20 to the glass member 10 does not deteriorate due to sunlight. In the first embodiment, the portion of the light-shielding region A2a that reaches the edge 19e of the opening 19 is formed on the Z2-direction side surface 14B of the second glass substrate 14. In Figure 6, the edge 19e of the periphery of the opening 19 on the surface where the light-shielding region A2a (light-shielding layer 18) is provided is the edge of surface 14B because the light-shielding layer 18 is provided on surface 14B. However, if the light-shielding layer 18 is provided on surface 12B, it will be the edge of surface 12B. Furthermore, for example, if chamfering is performed on the periphery of the opening 19, a chamfered surface is formed on the inner circumferential edge of surface 14B. In this case, the edge 19e of the periphery of the opening 19 on the surface where the light-shielding region A2a (light-shielding layer 18) is provided is the boundary between surface 14B and the chamfered surface.

[0054] Furthermore, in the first embodiment, the light-shielding region A2a extends around the entire circumference of the opening 19, reaching the peripheral edge 19e of the opening 19 on the surface 14B where the light-shielding region A2a is provided. The light-shielding region A2a covers the entire adhesive 50 in the thickness direction (Z direction) of the glass member 10. As shown in Figure 7, the adhesive 50 is formed to fit within the range between the inner peripheral end surface 18E and the outer peripheral end surface 18F of the portion of the light-shielding layer 18 that surrounds the opening 19. The radially inner end of the adhesive 50 coincides with the position of the inner peripheral end surface 18E of the light-shielding layer 18. The radially outer end of the adhesive 50 is located radially inward from the outer peripheral end surface 18F of the light-shielding layer 18. Therefore, as shown in Figure 8, the entire adhesive 50 is contained within the width Wo of the portion of the light-shielding layer 18 surrounding the opening 19, and the entire outer side (Z1 direction) of the adhesive 50 is covered by the light-shielding region A2a. As a result, the entire adhesive 50 can be shielded from sunlight.

[0055] Thus, the width Wo of the portion of the light-shielding layer 18 surrounding the opening 19 is greater than the width Wa of the adhesive 50. Here, width Wo means the shortest distance from the geometric center of the opening 19 to the outer circumference of the light-shielding region A2a in the radial direction from the geometric center of the opening 19 in a plan view of the glass member 10 in the Z direction (see Figure 2). The width Wo of the portion of the light-shielding layer 18 surrounding the opening 19 is preferably 10% or more of the maximum dimension DC of the first surface 20A of the transparent member 20, and more preferably 30% or more. The width Wo is preferably 100% or less of the maximum dimension DC of the first surface 20A, and more preferably 70% or less. In this embodiment, the upper and lower limit values ​​can be combined as appropriate. By having the width Wo of the portion of the light-shielding layer 18 surrounding the opening 19 within this range, the incidence of sunlight onto the adhesive 50 can be effectively suppressed, and the driver's field of view can be secured without unnecessarily reducing the area of ​​the light-transmitting region A1. The maximum dimension DC of the first surface 20A of the transparent member 20 is the maximum length of the line segment connecting two points on the outer circumference of the first surface 20A in a plan view along the Z direction of the first surface 20A. In the example of Figure 7, since the first surface 20A is circular, the maximum dimension DC of the first surface 20A is equal to the diameter of the first surface 20A. For example, if the transparent member 20 is square, the maximum dimension DC of the first surface 20A of the transparent member 20 is equal to the length of the diagonal of the transparent member 20. For example, if the transparent member 20 is elliptical, the maximum dimension DC of the first surface 20A of the transparent member 20 is equal to the length of the major axis of the transparent member 20.

[0056] The width Wa of the adhesive 50 in the radial direction of the opening 19 is not particularly limited, but is preferably 1% or more of the maximum dimension DC of the first surface 20A of the transparent member 20, and more preferably 3% or more. The width Wa is preferably 20% or less of the maximum dimension DC of the first surface 20A, and more preferably 15% or less. By having the width Wa of the adhesive 50 within this range, the adhesive reliability of the transparent member 20 and the frame member 30 to the glass member 10 can be ensured, and the adhesive area can be prevented from becoming unnecessarily large.

[0057] (Step difference between each component) When assembling the vehicle glass 1, the Z-direction position of the frame member 30 and the transparent member 20 can be finely adjusted by adjusting the amount of compression of the adhesive 50 by the fixing part 32 of the frame member 30 before the adhesive 50 hardens. As shown in Figure 8, in the first embodiment, it is preferable that the step difference D1 between the first surface 20A on the Z1 direction side (outside the vehicle) of the transparent member 20 and the Z1 direction side surface 30A of the frame member 30 is within 0.3 mm in the thickness direction (Z direction) of the transparent member 20. It is preferable that the step difference D2 between the Z1 direction side surface 12A of the glass member 10 and the Z1 direction side surface 30A of the frame member 30 is within 1.0 mm in the thickness direction (Z direction) of the transparent member 20. In other words, it is preferable that the first surface 20A on the Z1 direction side of the transparent member 20, the Z1 direction side surface 12A of the glass member 10, and the Z1 direction side surface 30A of the frame member 30 are formed flush (continuously). Note that the Z1 direction side surface 12A of the glass member 10, the first surface 20A of the transparent member 20, and the Z1 direction side surface 30A of the frame member 30 are surfaces exposed on the Z1 direction side of the vehicle glass 1. By making the Z1 direction side surfaces of the glass member 10, the transparent member 20, and the frame member 30 continuous in this way, it is possible to suppress the impairment of the wiper's wiping effect. In addition, because the steps D1 and D2 are small, it is possible to suppress the risk of the steps impairing the design of the vehicle V, and the accumulation of sand and dust on the steps.

[0058] The step difference D1 between the first surface 20A on the Z1 direction side of the transparent member 20 and the surface 30A on the Z1 direction side of the frame member 30 is more preferably 0.2 mm or less, even more preferably 0.15 mm or less, and still more preferably 0.1 mm or less. The step difference D2 between the surface 12A on the Z1 direction side of the glass member 10 and the surface 30A on the Z1 direction side of the frame member 30 is more preferably 0.5 mm or less, even more preferably 0.3 mm or less. The step difference D2 is more preferably 0.15 mm or less, and still more preferably 0.1 mm or less. As a result, the glass member 10, the transparent member 20 and the frame member 30 become even closer to being flush, so that the wiping effect of the wiper can be effectively suppressed.

[0059] The height of the step difference D1 in the thickness direction between the first surface 20A on the Z1 direction side of the transparent member 20 and the surface 30A on the Z1 direction side of the frame member 30, and the height of the step difference D2 in the thickness direction between the surface 12A on the Z1 direction side of the glass member 10 and the surface 30A on the Z1 direction side of the frame member 30, can be measured, for example, using a laser displacement meter (Keyence Corporation, inline profile measuring instrument: LJ-X8200) by irradiating a laser into a region enclosed by a line segment 10 mm radially inward from the inner peripheral edge of the surface 30A of the frame member 30 and a line segment 10 mm radially outward from the outer peripheral edge of the surface 30A of the frame member 30, and then measuring from the obtained step profile. Furthermore, the edges of the first surface 20A of the transparent member 20, the surface 30A of the frame member 30, and the surface 12A of the glass member 10 may be chamfered. In that case, the heights of the steps D1 and D2 are the difference in the Z-direction position between the surface positions of the flat portion near the outer periphery, excluding the chamfered portion. The flat portion near the outer periphery is, for example, a flat portion within a radius of 1 mm from the chamfered portion.

[0060] The transparent member 20 may be molded to match the curved shape of the vehicle glass 1 to which it is applied. This allows the surface of the transparent member 20 to be aesthetically smooth. The method of forming the transparent member 20 is not particularly limited, but polishing or mold forming can be selected depending on the curved shape and the member. When the transparent member 20 is formed by polishing, it is desirable to polish the transparent member 20 in parallel to improve its flatness accuracy. This flatness accuracy is an indicator of the reflective surface accuracy at a measurement wavelength of 632.8 nm, and it is preferable that the number of Newton lines is 2 or less. The ass, which indicates the difference in the number of Newton lines in the vertical and horizontal directions, is preferably 0.5 or less, and the distortion, which indicates the local distortion of the Newton fringes, is preferably 0.5 or less. This allows the far-infrared camera CA1 to acquire far-infrared images without distortion. Here, the number of Newton lines, ass, and distortion can be measured according to the instructions of JIS B0091:2010 and ISO 14999-4:2007, and the number of fringes, wavelength, or nanometers are used as units.

[0061] (Method for manufacturing vehicle glass) The method for manufacturing vehicle glass 1 is not particularly limited, but one example is described below. Figure 9 is a schematic diagram illustrating an example of a method for manufacturing vehicle glass according to the first embodiment.

[0062] As shown in Figure 9, a glass member 10 with a light-shielding region A2 (light-shielding region A2a) is prepared (step S10). The glass member 10 according to the first embodiment can be manufactured, for example, by the following method. First, a flat first glass substrate 12 and a second glass substrate 14 are prepared. Next, a black ceramic sprint material is applied to the second glass substrate 14 as a light-shielding layer 18. The light-shielding layer 18 is formed by black ceramics, for example, by screen printing. In the first embodiment, the light-shielding layer 18 is formed not only in the light-shielding region A2 shown in Figure 2, but also in the portion corresponding to the far-infrared transmission region B. The light-shielding layer 18 is not formed in the light-transmitting region A1 and the visible light transmission region C. As a result, at the time the light-shielding layer 18 is formed (before the opening 19 is formed), the planned opening formation region P19, where the opening 19 is to be formed in a later process, is covered by the light-shielding layer 18. Next, the first glass substrate 12 and the second glass substrate 14 are bent. Then, the bent first glass substrate 12 and the second glass substrate 14 are joined together via an intermediate layer 16 to form laminated glass. After that, an opening 19 is formed in the laminated glass. That is, the opening 19 is formed by drilling holes through the first glass substrate 12, the intermediate layer 16, the second glass substrate 14, and the light-shielding layer 18 in the thickness direction using machining or laser processing. The opening 19 is formed in the planned opening formation region P19. In this way, in the first embodiment, the opening 19 is formed by removing the planned opening formation region P19 together with the light-shielding layer 18 while the light-shielding layer 18 is formed in the area including the planned opening formation region P19. By drilling holes while the light-shielding layer 18 is formed in the planned opening formation region P19, the light-shielding layer 18 is formed to coincide with the edge 19e of the periphery of the opening 19. As a result, in the first embodiment, a light-shielding region A2a is formed such that, in a plan view from the Z1 direction side (outside the vehicle), the portion covering the adhesive 50 reaches the edge 19e of the periphery of the opening 19. In the above example, the light-shielding layer 18 is formed before the bending of the first glass substrate 12 and the second glass substrate 14, but it may also be formed after bending. The formation of the light-shielding layer 18 can be carried out at any time before the formation of the opening 19.Furthermore, the light-shielding layer 18 only needs to be formed inward from the outer edge of the area P19 where the opening is to be formed, and does not need to cover the entire area P19. By forming the opening 19 in this manner, a glass member 10 with a light-shielding area A2 is prepared.

[0063] Next, as shown in Figure 9, a far-infrared transmission unit U is prepared in which the transmission member 20 is held in a frame member 30 (step S12). For example, to make the far-infrared transmission unit U, a mold matching the completed far-infrared transmission unit U is prepared, the pre-fabricated transmission member 20 is placed in the mold, and a resin frame member 30 is formed around the transmission member 20 by injection molding. In injection molding, the inner surface of the mold corresponding to the surface 30A of the frame member 30 is aligned with the first surface 20A of the transmission member 20, so that the step difference D1 between the first surface 20A of the transmission member 20 and the surface 30A of the frame member 30 is 0.3 mm or less. Alternatively, the frame member 30 is prepared separately from the transmission member 20, and the transmission member 20 is fitted into the recess 31A on the inner circumference side of the holding part 31. During assembly, the first surface 20A and the surface 30A are aligned by contacting them with a flat jig, for example, so that the step difference D1 between the first surface 20A of the transparent member 20 and the surface 30A of the frame member 30 is 0.3 mm or less. By any of these methods, a far-infrared transmission unit U equipped with a transparent member 20 and a frame member 30 can be manufactured.

[0064] Next, the far-infrared transmitting unit U is placed inside the opening 19 of the glass member 10 and fixed with adhesive 50 (step S14). At this time, with the adhesive 50 placed on the fixing portion 32 of the frame member 30, the far-infrared transmitting unit U is inserted into the opening 19, so that the adhesive 50 is placed between the surface (surface 18B) on the Z2 direction side around the opening 19 of the glass member 10 and the fixing portion 32 of the frame member 30. At this time, for example, a jig that is flat or conforms to the curved shape of the surface 12A of the glass member 10 is placed on the surface 12A of the glass member 10 and the surface 30A of the frame member 30, and the adhesive 50 is compressed until the surface 30A of the frame member 30 contacts the jig. As a result, the relative position of the frame member 30 in the Z direction with respect to the glass member 10 is adjusted so that the step difference D2 between the surface 12A of the glass member 10 and the surface 30A of the frame member 30 is 1.0 mm or less. Then, the adhesive 50 is cured while maintaining the relative position between the glass member 10 and the far-infrared transmitting unit U. The curing method for the adhesive 50 is determined according to the type (components) of adhesive 50 used. Curing methods include, for example, vaporizing the solvent over time, reacting with moisture in the air, curing by heating, melting the adhesive 50 by heating and then curing it as it cools, adding a curing agent, or irradiating it with light such as ultraviolet light.

[0065] The above process completes the manufacturing of one example of vehicle glass 1.

[0066] (Second Embodiment) Figure 10 is an enlarged cross-sectional view of the area around the transparent member and frame member in the vehicle glass according to the second embodiment. The vehicle glass 1 according to the second embodiment differs from the first embodiment in that, instead of the light-shielding layer 18 being provided on the surface 14B of the second glass substrate 14, the light-shielding layer 18 is provided on the surface 12B of the first glass substrate 12 on the Z1 direction side (outside the vehicle).

[0067] As shown in Figure 10, in the second embodiment, the glass member 10 is a laminated glass in which a first glass substrate 12 provided on the Z1 direction side and a second glass substrate 14 provided on the Z2 direction side are laminated with an intermediate layer 16 in between, and a light-shielding layer 18 constituting a light-shielding region A2a is provided on the surface 12B of the first glass substrate 12. The position of the inner circumferential end face 18E of the portion of the light-shielding layer 18 surrounding the opening 19 coincides with the position of the end 19e of the peripheral edge of the opening 19 on the surface 12B on which the light-shielding layer 18 is provided, in the radial direction of the opening 19. As a result, the portion of the light-shielding region A2a that reaches the end 19e of the peripheral edge of the opening 19 is formed on the surface 12B of the first glass substrate 12 on the Z2 direction side. In the example of Figure 10, the light-shielding layer 18 is not provided on the surface 14B of the second glass substrate 14. In the example of Figure 10, the light-shielding layer 18 is formed only on the surface 12B of the first glass substrate 12. The light-shielding layer 18 formed on the surface 12B of the first glass substrate 12 reaches the edge 19e of the periphery of the opening 19. As a result, the light-shielding region A2a provided on the surface 12B covers the adhesive 50 and the intermediate layer 16 from the Z1 direction side (outside the vehicle) in the Z direction. Because the light-shielding region A2a reaches the edge 19e of the periphery of the opening 19 on the surface 12B, the end face portion of the intermediate layer 16 that constitutes the inner circumferential surface of the opening 19 is covered by the light-shielding region A2a. As a result, in addition to suppressing the exposure of the adhesive 50 to sunlight by the light-shielding region A2a, the exposure of the end face portion of the intermediate layer 16 that constitutes the inner circumferential surface of the opening 19 to sunlight can also be suppressed. Of the intermediate layer 16, the end face portion exposed to the opening 19 is a part that is easily deteriorated by exposure to outside air and moisture, so by suppressing the deterioration of this end face portion, it is possible to suppress a decrease in the durability of the laminated glass even when an opening 19 is formed. Furthermore, the light-shielding layer 18 is prone to temperature rise due to its absorption of sunlight, thus becoming a heat source for other adjacent components. When the light-shielding layer 18 is in contact with the adhesive 50, the heat from the light-shielding layer 18 is directly transferred to the adhesive 50. In the second embodiment, the distance in the Z direction between the light-shielding layer 18, which absorbs sunlight, and the adhesive 50 can be increased, thereby delaying the transfer of heat from the light-shielding layer 18 to the adhesive 50.In other words, the interposition of the intermediate layer 16 and the second glass substrate 14 between the light-shielding layer 18 and the adhesive 50 slows down heat transfer to the adhesive 50, thereby suppressing deterioration of the adhesive 50 due to heat.

[0068] In the second embodiment, it is preferable that the light-shielding region A2a extends around the entire circumference of the opening 19 and reaches the end portion 19e of the peripheral edge of the opening 19. This allows the end portion of the intermediate layer 16 that constitutes the inner circumferential surface of the opening 19 to be covered by the light-shielding region A2a around the entire circumference of the opening 19, thereby effectively suppressing exposure to sunlight.

[0069] (Third Embodiment) Figure 11 is an enlarged cross-sectional view of the area around the transparent member and frame member in the vehicle glass according to the third embodiment. The vehicle glass 1 according to the third embodiment differs from the first embodiment in that a light-shielding layer 18 is provided on both the surface 12B of the first glass substrate 12 on the Z1 direction side (outside the vehicle) and the surface 14B of the second glass substrate 14 on the Z2 direction side (inside the vehicle).

[0070] As shown in Figure 11, in the third embodiment, the glass member 10 is a laminated glass in which a first glass substrate 12 and a second glass substrate 14, provided on the Z1 direction side, are laminated with an intermediate layer 16 in between. The portion that reaches the edge 19e of the periphery of the opening 19 of the light-shielding region A2a is formed on the Z2 direction side surface 12B of the first glass substrate 12. In the example of Figure 11, the light-shielding layer 18 is formed on the surface 12B of the first glass substrate 12 and the surface 14B of the second glass substrate 14, respectively, and both light-shielding layers 18 reach the edge 19e of the periphery of the opening 19. As a result, the light-shielding region A2a provided on the surface 12B covers the adhesive 50 and the intermediate layer 16 from the Z1 direction side (outside the vehicle) in the Z direction. Since the light-shielding region A2a reaches the edge 19e of the periphery of the opening 19 on the surface 12B, the end face portion of the intermediate layer 16 that constitutes the inner circumferential surface of the opening 19 is covered by the light-shielding region A2a. As a result, in addition to suppressing the exposure of the adhesive 50 to sunlight by the light-shielding region A2a, the exposure of the end face portion of the intermediate layer 16 that constitutes the inner circumferential surface of the opening 19 to sunlight can also be suppressed. Of the intermediate layer 16, the end face portion exposed to the opening 19 is a part that is easily deteriorated by exposure to outside air and moisture, so by suppressing the deterioration of this end face portion, it is possible to suppress a decrease in the durability of the laminated glass even when an opening 19 is formed. Furthermore, in the third embodiment, since the light-shielding layer 18 on the Z1 direction side (surface 12B) is separated from the adhesive 50 in the Z direction, heat transfer from the light-shielding layer 18 to the adhesive 50 can be delayed. In other words, the intermediate layer 16, the second glass substrate 14, and the light-shielding layer 18 on the Z2 direction side (surface 14B) are interposed between the light-shielding layer 18 and the adhesive 50, which slows down heat transfer to the adhesive 50. The light-shielding layer 18 on the Z2 direction side (surface 14B) is covered by the light-shielding layer 18 on the Z1 direction side (surface 12B), so the amount of sunlight incident from outside the vehicle is small and it does not generate much heat. Therefore, even when the light-shielding layer 18 is provided on both the surface 12B of the first glass substrate 12 and the surface 14B of the second glass substrate 14, the light-shielding layer 18 on surface 12B slows down heat transfer to the adhesive 50, and the effect of suppressing deterioration of the adhesive 50 due to heat can be obtained.

[0071] In the third embodiment, it is preferable that the light-shielding region A2a extends around the entire circumference of the opening 19 and reaches the end portion 19e of the peripheral edge of the opening 19. This allows the end portion of the intermediate layer 16 that constitutes the inner circumferential surface of the opening 19 to be covered by the light-shielding region A2a around the entire circumference of the opening 19, thereby effectively suppressing exposure to sunlight.

[0072] (Fourth Embodiment) Figure 12 is an enlarged cross-sectional view of the area around the boundary between the glass member and the frame member in the vehicle glass according to the fourth embodiment. The vehicle glass 1 according to the fourth embodiment differs from the third embodiment in that the second opening 14a in the second glass base 14 is larger than the first opening 12a in the first glass base 12.

[0073] As shown in Figure 12, in the fourth embodiment, the opening 19 includes a first opening 12a formed in the first glass substrate 12 and a second opening 14a formed in the second glass substrate 14, which is larger than the first opening 12a. The size of the opening is the maximum length of the dotted line segment connecting any two points on the inner circumference of the opening in a plan view from the Z direction. If the opening is circular, the size of the opening is equal to the diameter of the opening. For example, if the opening is square, the size of the opening is equal to the length of the diagonal of the opening. For example, if the opening is elliptical, the size of the opening is equal to the length of the major axis of the opening. In one example, the opening 19 (first opening 12a, second opening 14a) is circular, and the diameter D14 of the second opening 14a is larger than the diameter D12 of the first opening 12a.

[0074] In the fourth embodiment, the size of the second opening 14a formed in the second glass substrate 14 on the Z2 direction side (inside the vehicle) is large, making it easier to insert the frame member 30 into the opening 19 from the Z2 direction side, thus improving the assembly workability of the vehicle glass 1. The second opening 14a has a tapered cross-sectional shape in which the opening area decreases toward the Z1 direction side (outside the vehicle). The inner circumferential surface of the second opening 14a is an inclined surface that approaches the circumferential center as it is directed toward the Z1 direction. This allows the inner circumferential surface of the second opening 14a to function as a guide surface when inserting the frame member 30 into the opening 19.

[0075] The diameter D14 of the second opening 14a is preferably 100% or more of the diameter D12 of the first opening 12a, more preferably 100.1% or more, and even more preferably 100.3% or more. The diameter D14 is preferably 110% or less of the diameter D12 of the first opening 12a, more preferably 106% or less, and even more preferably 103% or less. By setting the diameter D14 of the second opening 14a within this range, the workability of assembling the transparent member 20 and the frame member 30 to the glass member 10 is improved, while avoiding the need to excessively enlarge the size of the fixing portion 32 of the frame member 30 to match the second opening 14a. Furthermore, a decrease in the strength of the glass member 10 due to the difference in opening size can be avoided.

[0076] The size of the second opening 14a is largest on the Z2-direction side surface 14B of the second glass substrate 14 and smallest on the Z1-direction side surface 14A.

[0077] The opening shape of the first opening 12a is constant from the surface 12B on the Z2 direction side to the surface 12A on the Z1 direction side of the first glass substrate 12.

[0078] In the fourth embodiment, because the size of the second opening 14a is large, the position of the edge of the periphery of the second opening 14a is radially outward from the position of the edge of the periphery of the first opening 12a. In other words, the edge of the periphery of the second opening 14a is further away from the outer circumferential surface of the holding portion 31 of the frame member 30 than the edge of the periphery of the first opening 12a. Even in this case, since the light-shielding layer 18 (light-shielding region A2a) formed on the Z2-direction surface 12B of the first glass substrate 12 is provided to reach the edge of the periphery of the first opening 12a, the end face portion of the intermediate layer 16 and the adhesive 50 can be covered with the light-shielding region A2a.

[0079] (Fifth Embodiment) Figure 13 is an enlarged cross-sectional view of the area around the boundary between the glass member and the frame member in the vehicle glass according to the fifth embodiment. The vehicle glass 1 according to the fifth embodiment differs from the third embodiment in that the distance CL1 between the end 19e of the periphery of the opening 19 and the retaining portion 31 is smaller than the distance CL2 between the adhesive 50 and the retaining portion 31. Note that for the sake of explanation, the distance CL1 in Figure 13 is greatly exaggerated in the illustration.

[0080] As shown in Figure 13, in the fifth embodiment, the distance CL1 between the peripheral edge 19e of the opening 19 and the holding portion 31 of the frame member 30 is smaller than the distance CL2 between the adhesive 50 and the holding portion 31. The peripheral edge 19e of the opening 19 is the edge of the portion where the light-shielding region A2a is formed. In other words, the distance CL1 between the peripheral edge 19e of the opening 19 and the holding portion 31 of the frame member 30 is the distance between the inner peripheral end surface 18E of the portion of the light-shielding layer 18 surrounding the opening 19 and the holding portion 31. As shown in Figure 13, when the opening 19 includes a first opening 12a and a second opening 14a, and the light-shielding layer 18 is formed on both peripheries, the smallest value among the respective distances is adopted for the distance CL1. In the example in Figure 13, the diameters of the first opening 12a and the second opening 14a are equal, and the cross-sectional shape of the opening 19 is constant throughout its thickness. The distance between the periphery of the first opening 12a and the retaining portion 31 is equal to the distance between the periphery of the second opening 14a and the retaining portion 31, and this distance is CL1. The distance CL2 between the adhesive 50 and the retaining portion 31 is the minimum value of the radial distance CL2 between each point of the adhesive 50 and the retaining portion 31.

[0081] Given the structure in which the frame member 30 is inserted inside the opening 19, it is preferable to make the size of the frame member 30 slightly smaller than the size of the opening 19, considering dimensional tolerances. In this case, a gap corresponding to the gap CL1 is formed between the end 19e of the periphery of the opening 19 and the holding portion 31. The gap CL2 between the adhesive material 50 and the holding portion 31 becomes larger than this gap CL1. Therefore, in the fifth embodiment, the adhesive material 50 is positioned radially outside the radially inner end (inner circumferential end surface 18E) of the light-shielding region A2a, and radially inside the radially outer end (outer circumferential end surface 18F). This suppresses the irradiation of the adhesive material 50 by sunlight (let's say light rays Ls) entering through the gap CL1 between the end of the light-shielding region A2a and the holding portion 31. As a result, exposure of the adhesive material 50 to sunlight can be suppressed even more effectively.

[0082] The spacing CL1 is preferably 0.1% or more, more preferably 0.2% or more, and even more preferably 0.3% or more, of the diameter of the opening 19 (the maximum length of the dotted line segment connecting any two points on the inner circumference of the opening in a plan view from the Z direction). The spacing CL1 is preferably 3% or less, more preferably 1% or less, and even more preferably 0.8% or less, of the diameter of the opening 19. By setting the spacing CL1 within this range, radial displacement of the frame member 30 and entry of foreign matter into the gap due to a large spacing CL1 can be suppressed, and the deterioration of yield caused by interference between the holding part 31 and the opening 19 due to a small spacing CL1 can be suppressed.

[0083] Furthermore, the spacing CL2 is not particularly limited as long as it is larger than the spacing CL1, but it may be larger as the distance ts from the surface 12A on the Z1 direction side (outside the vehicle) of the glass member 10 to the light-shielding layer 18 decreases, and smaller as the distance ts increases. When there are multiple light-shielding layers 18 as shown in Figure 13, the distance ts is the distance to the light-shielding layer 18 on the Z2 direction side. By determining the spacing CL2 according to the distance ts, it is possible to reliably suppress sunlight incident from the gap between the edge of the light-shielding region A2a and the holding portion 31 from directly irradiating the adhesive 50, and it is also possible to suppress the increase in the size of the fixing portion 32 by forming the adhesive 50 at a position excessively far from the holding portion 31.

[0084] Furthermore, in the fifth embodiment, it is preferable that the light-shielding layer 18 is provided on the surface 14B of the second glass substrate 14 on the Z2 direction side. This allows the light-shielding layer 18 to be formed closer to the adhesive 50, so that sunlight that is obliquely incident on the adhesive 50 through the gap, as shown by the light ray Ls in Figure 13, can be effectively blocked.

[0085] (Sixth Embodiment) Figure 14 is an enlarged cross-sectional view of the area around the boundary between the glass member and the frame member in the vehicle glass according to the sixth embodiment. The vehicle glass 1 according to the sixth embodiment differs from the third embodiment in that the frame member 30 has a contact portion 33 that contacts the inner circumferential surface of the opening 19.

[0086] As shown in Figure 14, in the sixth embodiment, the frame member 30 has a contact portion 33 that protrudes from the holding portion 31 toward the inner circumferential surface of the opening 19 and contacts the inner circumferential surface of the opening 19 with elastic deformation. In the example of Figure 14, the contact portion 33 protrudes radially outward from the Z1 direction end of the holding portion 31. More specifically, the contact portion 33 faces radially toward the inner circumferential surface of the first opening 12a of the first glass substrate 12 within the opening 19. The outer circumferential end of the contact portion 33 is in close contact with the inner circumferential surface of the opening 19 (first opening 12a).

[0087] In other words, the contact portion 33 is formed such that, in a non-contact state with the inner circumferential surface of the opening 19 before the holding portion 31 of the frame member 30 is positioned inside the opening 19, its radial dimension is larger than that of the opening 19, as shown by the dotted line in Figure 14. Then, when the holding portion 31 is inserted inside the opening 19 during the assembly of the vehicle glass 1, the contact portion 33 comes into contact with the inner circumferential surface of the opening 19 and elastically deforms so as to be compressed radially. As a result, as shown by the solid line in Figure 14, when assembled as the vehicle glass 1, the contact portion 33 elastically deforms and maintains a state of close contact with the inner circumferential surface of the opening 19. This eliminates the gap between the glass member 10 and the frame member 30, thereby suppressing sunlight from irradiating the adhesive 50 from between the opening 19 and the frame member 30. In Figure 14, the contact portion 33 is provided on the Z1 side of the intermediate layer 16. This suppresses the exposure of the end face portion of the intermediate layer 16 to water and sunlight.

[0088] The contact portion 33 is preferably formed in a ring shape (flange shape) so as to be in close contact with the inner circumferential surface of the opening 19 over its entire circumference. In other words, the contact portion 33 is preferably formed in a continuous ring shape around the entire circumference of the holding portion 31. This completely seals the gap between the opening 19 and the frame member 30, thereby effectively suppressing the incidence of sunlight, foreign matter, and water into this gap.

[0089] In the example shown in Figure 14, the contact portion 33 has a convex shape with an arc-shaped cross-section, but the cross-sectional shape of the contact portion 33 is not particularly limited. The cross-sectional shape of the contact portion 33 may be a plate-like shape, such as a leaf spring, so that the contact portion 33 is easily elastically deformed.

[0090] In the example shown in Figure 14, one contact portion 33 is formed in the first opening 12a of the first glass substrate 12, but multiple contact portions 33 may be provided. Multiple contact portions 33 may be provided at positions offset in the Z direction so as to contact the inner circumferential surface of the first opening 12a. Furthermore, contact portions 33 may be provided at positions that contact the inner circumferential surface of the first opening 12a and at positions that contact the inner circumferential surface of the second opening 14a, respectively.

[0091] (Seventh Embodiment) Figure 15 is an enlarged cross-sectional view of the area around the boundary between the glass member and the frame member in the vehicle glass according to the seventh embodiment. The vehicle glass 1 according to the seventh embodiment differs from the third embodiment in that the fixing portion 32 is provided with a blocking wall 34 to prevent the adhesive 50 from overflowing from the light-shielding region A2a.

[0092] As shown in Figure 15, in the seventh embodiment, the fixing portion 32 has a blocking wall 34 that prevents the adhesive 50 from overflowing from the light-shielding region A2a. The blocking wall 34 is positioned on the opening 19 side relative to the adhesive 50 in the radial direction of the opening 19. In other words, the blocking wall 34 is located between the adhesive 50 and the holding portion 31. The blocking wall 34 is formed to protrude toward the Z1 direction from the portion of the surface 32A of the fixing portion 32 on the Z1 direction side that is in contact with the adhesive 50 (the adhesive portion). The blocking wall 34 is located radially outward from the end portion 19e of the periphery of the opening 19. That is, the blocking wall 34 is positioned radially outward from the position of the inner circumferential end surface 18E of the light-shielding layer 18 and is covered by the light-shielding region A2a.

[0093] As described above, when assembling the vehicle glass 1, the amount of compression of the adhesive 50 before curing (position of the surface 30A of the frame member 30) can be adjusted. The adhesive 50 is compressed between the glass member 10 and the fixing part 32, causing it to flow and expand radially. At this time, the blocking wall 34 prevents the adhesive 50 from flowing further radially inward. The blocking wall 34 determines the position of the radially inward end of the adhesive application area. This prevents the adhesive 50 from unintentionally flowing radially inward and overflowing from the light-shielding area A2a, thus ensuring that the adhesive 50 is more reliably covered by the light-shielding area A2a.

[0094] The height of the blocking wall 34 in the Z direction is not particularly limited, but is preferably, for example, more than half the thickness of the adhesive 50. This effectively prevents the adhesive 50 from overflowing. The thickness of the adhesive 50 is the Z-direction dimension of the completed state of the vehicle glass 1, that is, the state after the adhesive 50 has been compressed and hardened.

[0095] In the example shown in Figure 15, a recessed placement section 35 is formed on the surface 32A of the fixing section 32, oriented toward the Z2 direction. The placement section 35 is a groove for placing the adhesive 50. The blocking wall 34 is the radially inward side surface of this groove-shaped placement section 35.

[0096] Furthermore, in the example shown in Figure 15, the fixing portion 32 is positioned outside the adhesive 50 in the radial direction of the opening 19 and has a second blocking wall 36 that prevents the adhesive 50 from overflowing from the fixing portion 32. The second blocking wall 36 is the radially outer side surface of the groove-shaped arrangement portion 35. In the example shown in Figure 15, when the adhesive 50 is compressed and flows before curing, the radially outer second blocking wall 36 prevents the adhesive 50 from overflowing beyond the fixing portion 32. Therefore, in the example shown in Figure 15, when assembling the frame member 30 and the transparent member 20 to the glass member 10, the adhesive 50 is more likely to stay inside the arrangement portion 35.

[0097] The height of the second blocking wall 36 in the Z direction is not particularly limited, but is preferably, for example, half or more of the thickness of the adhesive 50. This effectively prevents the adhesive 50 from overflowing.

[0098] (Eighth Embodiment) Figure 16 is an enlarged cross-sectional view of the area around the boundary between the glass member and the frame member in the vehicle glass according to the eighth embodiment. Figure 17 is a plan view (A) of the first glass substrate on the Z2 direction side, a plan view (B) of the second glass substrate on the Z2 direction side, and a plan view (C) of the glass member on the Z2 direction side in the vehicle glass according to the eighth embodiment. The vehicle glass 1 according to the eighth embodiment differs from the third embodiment in that the first glass substrate and the second glass substrate are provided with light-shielding layers (181, 182) with different opening sizes.

[0099] As shown in Figure 16, in the eighth embodiment, light-shielding layers (181, 182) are provided on both the surface 12B of the first glass substrate 12 on the Z1 direction side (outside the vehicle) and the surface 14B of the second glass substrate 14 on the Z2 direction side (inside the vehicle). The light-shielding layer on the surface 12B of the first glass substrate 12 is designated as light-shielding layer 181. The light-shielding layer on the surface 14B of the second glass substrate 14 is designated as light-shielding layer 182.

[0100] In the eighth embodiment, the light-shielding region A2a includes a first light-shielding region A2a1 formed by the light-shielding layer 181 and a second light-shielding region A2a2 formed by the light-shielding layer 182. The first light-shielding region A2a1 and the second light-shielding region A2a2 partially overlap in the Z direction near the end 19e of the periphery of the opening 19, while the other parts do not overlap in the Z direction. The light-shielding region A2a is the combined region of the first light-shielding region A2a1 and the second light-shielding region A2a2.

[0101] The first light-shielding region A2a1 is formed on the surface 12B of the first glass substrate 12 on the Z2 direction side. The first light-shielding region A2a1 (light-shielding layer 181) has a first inner circumferential end surface 181E that reaches the end 19e of the periphery of the opening 19. The first inner circumferential end surface 181E is along the end 19e. Figure 17(A) schematically shows a plan view of the surface 12B of the first glass substrate 12 on which the first light-shielding region A2a1 is formed, viewed from the Z2 direction side toward the Z1 direction side. The opening formed by the first inner circumferential end surface 181E of the first light-shielding region A2a1 (light-shielding layer 181) has a diameter D21. The diameter D21 is the same as the diameter (length DB (see Figure 3)) of the opening 19. That is, the size and shape of the opening formed by the first inner circumferential end surface 181E of the light-shielding layer 181 are the same as the size and shape of the periphery of the opening 19.

[0102] The second light-shielding region A2a2 is formed on the Z2-direction surface 14B of the second glass substrate 14. The second light-shielding region A2a2 (light-shielding layer 182) has a second inner circumferential end surface 182E that is located radially outward from the first inner circumferential end surface 181E at the periphery of the opening 19. At least a portion of the second inner circumferential end surface 182E is located at a distance radially outward from the first inner circumferential end surface 181E. In the eighth embodiment, the entirety of the second inner circumferential end surface 182E is located radially outward from the first inner circumferential end surface 181E. In addition, a portion of the second inner circumferential end surface 182E may be located radially outward from the first inner circumferential end surface 181E, while another portion may be at the same radial position as the first inner circumferential end surface 181E. Figure 17(B) schematically shows a plan view of the surface 14B of the second glass substrate 14 on which the second light-shielding region A2a2 is formed, viewed from the Z2 direction towards the Z1 direction. The opening formed at the second inner circumferential end surface 182E of the second light-shielding region A2a2 (light-shielding layer 182) has a diameter D22. The diameter D22 is larger than the diameter D21 of the first inner circumferential end surface 181E. In the example of the eighth embodiment, the diameter D22 is larger than the diameter (length DB (see Figure 3)) of the opening 19. However, with respect to the opening 19, for example, as shown in Figure 12, the second opening 14a of the second glass substrate 14 may be larger than the first opening 12a of the first glass substrate 12. In this case, the diameter D21 of the first inner circumferential end surface 181E may be made to match the diameter D12 of the first opening 12a (see Figure 12), and the diameter D22 of the second inner circumferential end surface 182E may be made to match the diameter D14 of the second opening 14a (see Figure 12). In Figure 16, the adhesive 50 is directly bonded to the surface 14B of the second glass substrate 14 without the light-shielding layer 182, radially inward from the second inner circumferential end surface 182E. The adhesive 50 may also be bonded to the second glass substrate 14 via the light-shielding layer 182 at a position covered by the second light-shielding region A2a2 radially outward from the position shown in Figure 16. In this case, the adhesive strength between the second glass substrate 14 and the adhesive 50 can be improved by interposing the layer of the second light-shielding region A2a2 (i.e., the light-shielding layer 182) between the second glass substrate 14 and the adhesive 50. Furthermore, the adhesive 50 may consist of a portion that adheres to the second glass substrate 14 via the light-shielding layer 182 and a portion that adheres directly to the surface 14B of the second glass substrate 14 without the light-shielding layer 182.

[0103] Figure 17(C) schematically shows a plan view of the entire glass member 10, which has a light-shielding region A2a formed on it, including the first light-shielding region A2a1 and the second light-shielding region A2a2, as seen from the Z2 direction toward the Z1 direction. In Figure 17(C), the second light-shielding region A2a2 (light-shielding layer 182) is positioned on the near side in the line of sight, and the first light-shielding region A2a1 (light-shielding layer 181) is positioned on the far side in the line of sight. Since the second inner circumferential end surface 182E of the second light-shielding region A2a2 (light-shielding layer 182) is positioned radially outward from the first inner circumferential end surface 181E, in the annular region between the second inner circumferential end surface 182E and the first inner circumferential end surface 181E in the radial direction, the peripheral portions of the opening 19 of the second glass substrate 14 and the intermediate layer 16 are exposed on the Z2 side and are visible. In this way, the vicinity of the periphery (end portion 19e) of the opening 19 of the glass member 10 is exposed to the Z2 direction side without being covered by the second light-shielding region A2a2 (light-shielding layer 182), making it possible to easily inspect for defects in the opening 19 from the Z2 direction side of the glass member 10. For example, it is possible to easily and efficiently inspect for defects such as minute cracks that occur on the periphery (end portion 19e) of the opening 19 when the opening 19 is formed in the glass member 10. If the diameter D22 of the second inner circumferential end surface 182E is the same as the diameter D21 of the first inner circumferential end surface 181E, the periphery of the opening 19 cannot be observed from any side in the Z direction, resulting in an inspection method such as observing the inner surface of the opening 19 from an oblique angle. Compared to such a method, the eighth embodiment makes it easier to detect defects. Furthermore, when the entire glass member 10 is viewed from the Z1 direction towards the Z2 direction, the first light-shielding region A2a1 (light-shielding layer 181) is positioned on the near side in the line of sight. As a result, only the interior of the opening 19 is exposed on the Z1 side, and the annular region between the second inner circumferential end surface 182E and the first inner circumferential end surface 181E, as well as the adhesive 50, are covered by the first light-shielding region A2a1. Therefore, even if the diameter D22 of the second light-shielding region A2a2 (light-shielding layer 182) is increased, it does not affect the aesthetic appearance, and the exposure of the adhesive 50 to sunlight is also suppressed.

[0104] Figures 16 and 17 show an example where the shape of the opening 19 is circular when viewed from the Z direction, but the shape of the opening 19 may be other than circular. In that case, it is preferable that the first inner circumferential end surface 181E of the first light-shielding region A2a1 (light-shielding layer 181) matches the size and shape of the periphery of the opening 19 when viewed from the Z direction. The second inner circumferential end surface 182E of the second light-shielding region A2a2 (light-shielding layer 182) may be similar in shape to or dissimilar in shape to the periphery of the opening 19 when viewed from the Z direction. A portion of the second inner circumferential end surface 182E of the second light-shielding region A2a2 (light-shielding layer 182) may be located radially outward from the first inner circumferential end surface 181E, while another portion may be at the same radial position as the first inner circumferential end surface 181E.

[0105] (Effects) As described above, the vehicle glass according to the first aspect of this disclosure comprises a glass member 10 having an opening 19 penetrating from the surface on the Z1 side to the surface on the Z2 side and a light-shielding region A2a surrounding the opening 19, a frame member 30 having a far-infrared-transmitting member 20 disposed inside the opening 19, a holding portion 31 that holds the transmitting member 20 and is disposed inside the opening 19, and a fixing portion 32 fixed to the glass member 10 around the opening 19 via an adhesive 50, wherein the end of the portion of the light-shielding region A2a that covers the adhesive 50 in the thickness direction (Z direction) of the glass member 10 reaches the end 19e of the periphery of the opening 19 on the surface where the light-shielding region A2a is provided. According to this disclosure, since the portion of the light-shielding region A2a that covers the adhesive 50 in the thickness direction (Z direction) of the glass member 10 reaches the end 19e of the periphery of the opening 19, no gap is formed between the periphery of the opening 19 and the light-shielding region A2a. Therefore, since no gap is formed between the periphery of the opening 19 and the light-shielding area A2a that allows sunlight to pass through, the adhesive 50 used to fix the transmitting member 20 to the glass member 10 is not degraded by sunlight. Consequently, the reliability of the adhesion of the frame member 30 that holds the far-infrared transmitting member 20 to the glass member 10 can be improved.

[0106] The vehicle glass according to the second aspect of this disclosure is the vehicle glass according to the first aspect, wherein the glass member 10 is laminated glass in which a first glass substrate 12 provided on the Z1 side and a second glass substrate 14 provided on the Z2 side are laminated with an intermediate layer 16 in between, and the portion that reaches the edge 19e of the periphery of the opening 19 of the light-shielding region A2a is formed on the Z2 side surface 12B of the first glass substrate 12. As a result, in addition to suppressing the exposure of the adhesive 50 to sunlight by the light-shielding region A2a, the exposure of the end face portion of the intermediate layer 16 formed around the opening 19 to sunlight can also be suppressed. As a result, deterioration of not only the adhesive 50 but also the end face portion of the intermediate layer 16 due to sunlight can be suppressed. The end face portion exposed to the opening 19 is a part that is easily deteriorated by exposure to outside air and moisture, and deterioration may progress from the deteriorated area to the in-plane portion, so by suppressing the deterioration of this end face portion, it is possible to suppress a decrease in the durability of the laminated glass even when an opening 19 is formed. Furthermore, the light-shielding region A2a is prone to temperature rise due to the absorption of sunlight, thus becoming a heat source for other adjacent components. When the light-shielding region A2a is in contact with the adhesive 50, the heat from the light-shielding region A2a is directly transferred to the adhesive 50. In the above configuration, since the light-shielding region A2a is formed on the Z2-direction surface 12B of the first glass substrate 12, that is, on the inside of the laminated glass, the distance in the Z direction between the light-shielding region A2a, which absorbs sunlight, and the adhesive 50 can be increased. Therefore, the heat transfer from the light-shielding layer 18 to the adhesive 50 can be delayed, and the deterioration of the adhesive 50 due to heat can be suppressed.

[0107] A third aspect of the present disclosure is a vehicle glass according to the first or second aspect, wherein the glass member 10 is a laminated glass in which a first glass substrate 12 provided on the Z1 side and a second glass substrate 14 provided on the Z2 side are laminated with an intermediate layer 16 in between, and the portion reaching the peripheral end 19e of the opening 19 of the light-shielding region A2a is formed on the Z2 side surface 14B of the second glass substrate 14. As a result, by interposing the layer of the light-shielding region A2a (i.e., the light-shielding layer 18) between the second glass substrate 14 and the adhesive 50, the adhesive strength between the second glass substrate 14 and the adhesive 50 can be improved. As a result, the light-shielding region A2a can suppress the exposure of the adhesive 50 to sunlight, while also functioning as an intermediate layer to ensure adhesion between the glass member 10 and the frame member 30.

[0108] A vehicle glass according to a fourth aspect of this disclosure is a vehicle glass according to a second aspect, wherein the opening 19 includes a first opening 12a formed in a first glass substrate 12 and a second opening 14a formed in a second glass substrate 14 that is larger than the first opening 12a. As a result, the second opening 14a on the Z2 direction side is larger than the first opening 12a on the Z1 direction side, so that the frame member 30 can be easily inserted into the opening 19 from the Z2 direction side when assembling the vehicle glass. In the assembled state, the gap between the periphery of the second opening 14a and the frame member 30 becomes relatively larger, and the gap between the periphery of the first opening 12a and the frame member 30 becomes relatively smaller. However, since the light-shielding region A2a reaches the edge of the periphery of the opening 19 (i.e., the first opening 12a) on the Z2-direction side surface 12B of the first glass substrate 12, even when the second opening 14a is enlarged, the intrusion of sunlight through the gap between the light-shielding region A2a and the opening 19 can be effectively suppressed.

[0109] The fifth aspect of the present disclosure is a vehicle glass according to any of the first to fourth aspects, wherein the step D1 between the first surface 20A on the Z1 side of the transparent member 20 and the surface 30A on the Z1 side of the frame member 30 in the thickness direction (Z direction) of the transparent member 20 is 0.3 mm or less, and the step D2 between the surface 12A on the Z1 side of the glass member 10 and the surface 30A on the Z1 side of the frame member 30 in the thickness direction (Z direction) of the transparent member 20 is 1.0 mm or less. This prevents the wiper from being obstructed at the boundaries of the glass member 10, frame member 30 and transparent member 20 when the vehicle glass is installed in a vehicle. It also prevents the accumulation of foreign matter such as sand and dust at the boundaries of the glass member 10, frame member 30 and transparent member 20. Furthermore, it is possible to avoid the vehicle's appearance (design) being compromised by the steps at the boundaries of the glass member 10, the frame member 30, and the transparent member 20.

[0110] The vehicle glass according to the sixth aspect of this disclosure is a vehicle glass according to any of the first to fifth aspects, wherein the distance CL1 between the peripheral edge 19e of the opening 19 and the holding portion 31 of the frame member 30 is smaller than the distance CL2 between the adhesive 50 and the holding portion 31. This suppresses the irradiation of the adhesive 50 by sunlight passing between the peripheral edge 19e of the opening 19 and the holding portion 31, thereby more effectively suppressing the exposure of the adhesive 50 to sunlight.

[0111] The vehicle glass according to the seventh aspect of this disclosure is a vehicle glass according to any of the first to sixth aspects, wherein the frame member 30 has a contact portion 33 that protrudes from the holding portion 31 toward the inner circumferential surface of the opening 19 and contacts the inner circumferential surface of the opening 19 with elastic deformation. Here, considering dimensional tolerances, the size of the frame member 30 will be slightly smaller than the opening 19. The gap between the outer circumferential surface of the frame member 30 and the inner circumferential surface of the opening 19 becomes the path for sunlight to enter. Therefore, by providing the frame member 30 with an elastically deformable contact portion 33, the frame member 30 can be fixed to the glass member 10 during the assembly of the vehicle glass with the contact portion 33 of the frame member 30 in contact with the opening 19 and elastically deformed. As a result, the gap between the glass member 10 and the frame member 30 can be eliminated, so that sunlight does not irradiate the adhesive 50 from between the opening 19 and the frame member 30.

[0112] The eighth aspect of the present disclosure is a vehicle glass according to any of the first to seventh aspects, wherein the light-shielding region A2a extends around the entire circumference of the opening 19, reaching the end portion 19e of the peripheral edge of the opening 19 on the surface where the light-shielding region A2a is provided, and the adhesive 50 is provided around the entire circumference of the opening 19. As a result, the adhesive 50 can be covered with the light-shielding region A2a around the entire circumference of the opening 19, so that the exposure of the adhesive 50 to sunlight can be effectively suppressed. Furthermore, since the adhesive 50 is provided around the entire circumference of the opening 19, even if water or the like enters between the inner circumferential surface of the opening 19 and the frame member 30, the adhesive 50 can function as a seal, preventing water from entering in the Z2 direction.

[0113] The vehicle glass according to the ninth aspect of this disclosure is a vehicle glass according to any of the first to eighth aspects, wherein the light-shielding region A2a covers the entire adhesive 50 in the thickness direction (Z direction) of the glass member 10. As a result, the entire adhesive 50 can be shielded from sunlight, thereby more effectively suppressing the deterioration of the adhesive 50 due to sunlight.

[0114] The vehicle glass according to the tenth aspect of this disclosure is a vehicle glass according to any of the first to ninth aspects, wherein the fixing portion 32 is positioned on the opening 19 side relative to the adhesive 50 in the radial direction of the opening 19 and has a blocking wall 34 that prevents the adhesive 50 from overflowing from the light-shielding region A2a. As a result, when bonding the frame member 30 to the glass member 10, even if the adhesive 50 is pushed outward from the light-shielding region A2a between the two members, the blocking wall 34 prevents the adhesive 50 from overflowing from the light-shielding region A2a. This ensures that the adhesive 50 is reliably covered by the light-shielding region A2a.

[0115] A vehicle glass according to a twelfth aspect of the present disclosure is a vehicle glass according to a second aspect, wherein the light-shielding region A2a includes a first light-shielding region A2a1 formed on the Z2-direction surface 12B of the first glass substrate 12 and having a first inner circumferential end surface 181E that reaches the end 19e of the periphery of the opening 19, and a second light-shielding region A2a2 formed on the Z2-direction surface 14B of the second glass substrate 14 and having a second inner circumferential end surface 182E that is arranged radially outward from the first inner circumferential end surface 181E at the periphery of the opening 19. As a result, the vicinity of the periphery (end 19e) of the opening 19 of the glass member 10 is exposed to the Z2-direction side without being covered by the second light-shielding region A2a2, making it possible to easily inspect for defects in the opening 19 from the Z2-direction side of the glass member 10. On the other hand, on the Z1 side, the vicinity of the periphery (end portion 19e) of the opening 19 of the glass member 10 is covered by the first light-shielding region A2a1, so the aesthetic appearance is not affected, and exposure of the adhesive 50 to sunlight is also suppressed.

[0116] Although embodiments of the present invention have been described above, the embodiments are not limited to those described herein. Furthermore, the aforementioned components include those that can be easily conceived by those skilled in the art, those that are substantially the same, and those that fall within the so-called equivalent range. Moreover, the aforementioned components can be combined as appropriate. Furthermore, various omissions, substitutions, or modifications of the components can be made without departing from the spirit of the embodiments described above.

[0117] 1 Vehicle glass 1a Upper edge 1b Lower edge 1c, 1d Side edges 10 Glass member 12 First glass substrate 12a First opening 14 Second glass substrate 14a Second opening 16 Intermediate layer 18 Light-shielding layer 18E Inner circumferential end surface 18F Outer circumferential end surface 19 Opening 19e End portion 20 Transmitting member 20A First surface 20B Second surface 30 Frame member 31 Holding portion 31A Recess 32 Fixing portion 33 Contact portion 34 Blocking wall 35 Placement portion 36 Second blocking wall 40 Bracket 50 Adhesive 100 Camera unit A1 Light-transmitting area A2, A2a Light-shielding area B Far-infrared transmitting area C Visible light transmitting area CA1 Far-infrared camera CA2 Visible light camera CL1, CL2 spacing D1, D2 step difference D12, D14 diameter U far-infrared transmission unit V vehicle

Claims

1. A vehicle glass comprising: a glass member having an opening that penetrates from the surface on a first direction side to the surface on a second direction side opposite to the first direction, and a light-shielding region surrounding the opening; a frame member having a far-infrared-transmitting member disposed inside the opening; a holding portion that holds the transmitting member and is disposed inside the opening; and a fixing portion fixed to the glass member around the opening via adhesive, wherein the end of the portion of the light-shielding region that covers the adhesive in a plan view from the first direction side reaches the end of the periphery of the opening on the surface where the light-shielding region is provided.

2. The glass member is a laminated glass in which a first glass substrate provided on the first direction side and a second glass substrate provided on the second direction side are laminated with an intermediate layer in between, and the portion reaching the edge of the peripheral edge of the opening in the light-shielding region is formed on the surface of the first glass substrate on the second direction side, as described in claim 1.

3. The glass member is a laminated glass in which a first glass substrate provided on the first direction side and a second glass substrate provided on the second direction side are laminated with an intermediate layer in between, and the portion reaching the edge of the peripheral edge of the opening in the light-shielding region is formed on the surface of the second glass substrate on the second direction side, as described in claim 1 or 2.

4. The vehicle glass according to claim 2, wherein the opening includes a first opening formed in the first glass substrate and a second opening formed in the second glass substrate that is larger than the first opening.

5. The vehicle glass according to claim 1, wherein, in the thickness direction of the transparent member, the step difference between the surface of the transparent member on the first direction side and the surface of the frame member on the first direction side is 0.3 mm or less, and in the thickness direction of the transparent member, the step difference between the surface of the glass member on the first direction side and the surface of the frame member on the first direction side is 1.0 mm or less.

6. The vehicle glass according to claim 1, wherein the distance between the end of the periphery of the opening and the holding portion of the frame member is smaller than the distance between the adhesive and the holding portion.

7. The vehicle glass according to claim 1, wherein the frame member has a contact portion that protrudes from the holding portion toward the inner circumferential surface of the opening and contacts the inner circumferential surface of the opening with elastic deformation.

8. The light-shielding region extends around the entire circumference of the opening and reaches the edge of the peripheral edge of the opening on the surface on which the light-shielding region is provided, and the adhesive is provided around the entire circumference of the opening, as described in claim 1.

9. The light-shielding region covers the entire adhesive material in a plan view from the first direction, as described in claim 1.

10. The vehicle glass according to claim 1, wherein the fixing portion is positioned on the opening side of the adhesive in the radial direction of the opening and has a blocking wall that prevents the adhesive from overflowing from the light-shielding area.

11. The vehicle glass according to claim 1, wherein the surface of the frame member on the first direction side is set radially inward from the inner peripheral edge of the opening on the surface of the glass member on the first direction side.

12. The vehicle glass according to claim 2, wherein the light-shielding region includes: a first light-shielding region formed on the second-direction surface of the first glass substrate and having a first inner circumferential end surface that reaches the end of the periphery of the opening; and a second light-shielding region formed on the second-direction surface of the second glass substrate and having a second inner circumferential end surface that is positioned radially outward from the first inner circumferential end surface at the periphery of the opening.

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