# US 11,897,232 B2 · Glazing with optical device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,897,232 B2 - Document ID: US11897232B2 - Status: Granted - Kind: B2 - Application number: 18/157,926 - Filed: 2023-01-23 - Published: 2023-05-18 - Granted: 2024-02-13 - Earliest claimed: 2018-08-03 - Assignees: Agc Glass Europe - Applicants: Agc Glass Europe - Inventors: Meijie Li; Yannick Sartenaer; Quentin Fraselle; Marek Novotny - Web page: https://patentgrep.com/patent/US11897232B2 ## CPC - B32B 17/10036: {comprising two outer glass sheets} - B32B 17/10165: {Functional features of the laminated safety glass or glazing} - B32B 17/101: {having a predetermined coefficient of thermal expansion [CTE]} - B32B 17/10201: {Dielectric coatings} - B32B 17/10229: {Metallic layers sandwiched by dielectric layers} - B32B 17/10293: {Edge features, e.g. inserts or holes} - B32B 17/10449: {Wavelength selective transmission} - B32B 17/10761: {containing vinyl acetal} - B32B 17/1077: {containing polyurethane} - B32B 17/10788: {containing ethylene vinylacetate} - B60J 1/02: arranged at the vehicle front {, e.g. structure of the glazing, mounting of the glazing (on windscreen mounted antenna wire H01Q1/1271)} - G01S 17/931: of land vehicles - B32B 2307/416: Reflective - B32B 2605/08: Cars - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM - B60J: WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES (fastening, suspending, closing, or opening of such devices E05) - G01S: RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES ## Abstract A laminated glazing with an optically transparent area including at least one inner and one outer glass sheet, each having an internal and an external face, and being high level of near infrared radiation transmission glass sheets, at least one thermoplastic interlayer to laminate the at least the inner and the outer glass sheets, including at least a first zone and a second zone, the second zone being delimited by the optically transparent area, and at least one optical sensor device provided on the inner face of the inner pane integrated in the optically transparent area. The thermoplastic interlayer further includes a second zone delimited by the optically transparent area where the laminated glazing has a value of infrared transmission TIR1 higher than the value of infrared transmission TIR2 of the first zone for the working wavelengths of the optical device. ## Claims ### Claim 1 A laminated glazing with an optically transparent area comprising: at least one inner glass sheet and one outer glass sheet, each having an internal and an external face, at least one of the one inner glass sheet and the one outer glass sheet having an absorption coefficient less than 15 m−1 in the wavelength range from 750 to 1650 nm; at least one thermoplastic interlayer to laminate the at least one inner and outer glass sheets, comprising at least a first zone and a second zone, the second zone being delimited by the optically transparent area; and at least one optical sensor device provided on the inner face of the inner glass sheet integrated in the optically transparent area, wherein in the second zone of the thermoplastic interlayer delimited by the optically transparent area, the laminated glazing has a value of infrared transmission TIR1 higher than a value of infrared transmission TIR2 of the first zone for working wavelengths of the optical sensor device, and wherein the first zone of the thermoplastic interlayer is made of polyvinyl butyral and a material of the thermoplastic interlayer of the second zone is selected from the group consisting of ethylene vinyl acetate, Cyclic olefin polymer (COP), and polyurethane. ### Claim 2 (depends on 1) The laminated glazing according to claim 1, wherein the first zone of the thermoplastic interlayer is made of polyvinyl butyral and the second zone of the thermoplastic interlayer is made of a material having a TIR at the working wavelength of the optical sensor device higher than the polyvinyl butyral, so that TIR1 for the laminated glazing at the first zone is higher than TIR2 at the second zone. ### Claim 3 (depends on 1) The laminated glazing according to claim 1, wherein the the toplastic interlayer comprises the first zone made of polyvinyl butyral covering a main surface of the glazing and provided with a frame wherein a piece of thermoplastic interlayer of the second zone is selected from the group consisting of ethylene vinyl acetate, Cyclic olefin polymer (COP), and polyurethane and is placed inside the frame. ### Claim 4 (depends on 1) The laminated glazing according to claim 1, wherein the at least one optical sensor device is an infrared-based remote sensing device in the wavelength range from 750 to 1650 nm, and is placed on the internal face of the inner glass sheet. ### Claim 5 (depends on 1) The laminated glazing according to claim 1, wherein a system of infrared filter layers is provided between the inner and the outer glass sheets with a zone free of the system of infrared filter layers within the optically transparent area. ### Claim 6 (depends on 5) The laminated glazing according to claim 5 wherein the system of infrared filter layers is a coating wherein a decoating zone is provided on which an infrared-based remote sensing device is placed. ### Claim 7 (depends on 5) The laminated glazing according to claim 5, wherein the system of infrared filter layers is silver-based. ### Claim 8 (depends on 1) The laminated glazing according to claim 1, wherein the at least one inner and outer glass sheets are covered with at least one near-infrared transparent coating that absorbs and/or reflects the visible light. ### Claim 9 (depends on 1) The laminated glazing according to claim 1, wherein the at least one optical sensor device is a LIDAR system based on scanning, rotating or solid state LiDARs and enabling of 3D mapping the surroundings around a vehicle. ### Claim 10 (depends on 1) The laminated-glazing according to claim 1, wherein the at least one optical sensor device is optically coupled to the internal face of the glazing. ### Claim 11 (depends on 1) The laminated glazing according to claim 1, wherein an anti-reflective coating is provided on a surface of the laminated glazing. ### Claim 12 (depends on 1) The laminated glazing according to claim 1, wherein at least one of the one inner glass sheet and the one outer glass sheet has an absorption coefficient between 5 m−1 and 15 m−1 in the wavelength range from 750 to 1650 nm. ### Claim 13 (depends on 1) The laminated glazing according to claim 1, wherein the at least one inner and one outer glass sheets comprise a content, expressed as the total weight of glass percentages: total iron (expressed as Fe2O3) 0.002 to 1%, Cr2O3 0.0001 to 1%, and Co 0.0001 to 0.5%. ### Claim 14 (depends on 1) The laminated glazing according to claim 1, wherein the laminated glazing is a windshield. ### Claim 15 (depends on 2) The laminated glazing according to claim 2, wherein the TIR1 for the laminated glazing at the second zone is 90% higher than the TIR2 at the first zone. ### Claim 16 (depends on 4) The laminated glazing according to claim 4, wherein the at least one optical sensor device is an infrared-based remote sensing device in the wavelength range from 1530 nm to 1560 nm. ### Claim 17 A laminated glazing with an optically transparent area comprising: at least one inner glass sheet and one outer glass sheet, each glass sheet having an internal and an external face; at least one thermoplastic interlayer to laminate the at least one inner and outer glass sheets, comprising at least a first zone and a second zone, the second zone being delimited by the optically transparent area; and at least one optical sensor device provided on the inner face of the inner glass sheet integrated in the optically transparent area, wherein in the second zone of the theimoplastic interlayer delimited by the optically transparent area the laminated glazing has a value of infrared transmission TIR1 higher than a value of infrared transmission TIR2 of the first zone for working wavelengths of the optical sensor device, and wherein the thermoplastic interlayer comprises the first zone made of polyvinyl butyral covering a main surface of the glazing and provided with a frame wherein a piece of thermoplastic interlayer of the second zone is selected from the group consisting of ethylene vinyl acetate, Cyclic olefin polymer (COP), and polyurethane and is placed inside the frame.