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Laminated glass for vehicle

A technology for laminated glass and vehicles, which is applied in windshields, vehicle parts, glass/slag layered products, etc., can solve the problems of using lidar or near-infrared cameras, and the inability of laminated glass to work together, so as to improve the accuracy of use. Effect

Active Publication Date: 2019-09-13
FUYAO GLASS IND GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a laminated glass for vehicles in view of the disadvantage that the laminated glass in the prior art cannot be used with a laser radar or a near-infrared camera.

Method used

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  • Laminated glass for vehicle
  • Laminated glass for vehicle
  • Laminated glass for vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0037] In order to illustrate in more detail and support the invention points of the present invention more convincingly, some embodiments are listed for detailed elaboration. The laminated glass made in the following implementation cases is analyzed by the following schemes:

[0038] Transmittance: Analyze the transmission spectrum of the laminated glass with Agilent spectrophotometer equipment, and take the transmittance (T@905nm) corresponding to the wavelength of 905nm as the evaluation index.

Embodiment 1

[0041] Embodiment 1: take the soda calcium silicate float glass with a thickness of 1.6mm as the substrate, the white glass substrate has a transmittance of 85.94% and an absorptivity of 7.14% in the 900-1000nm wavelength range, the substrate After cutting, edging, washing and drying, etc., the coating deposition is carried out. The nano anti-reflection coating in Table 1 is deposited on the white glass substrate. Another white glass substrate and the white glass with nano anti-reflection coating deposited The substrates are assembled, shaped according to the high-temperature molding process of automobile glass, and a PVB film with a thickness of 0.76 mm is sandwiched in the middle, and the laminated glass of Example 1 is made through the initial pressure and high-pressure process of the combined sheet and the installation of accessories in other processes .

[0042] Table 1: Laminated glass structure and transmittance of Example 1 and Comparative Example 1

[0043]

[004...

Embodiment 2～5

[0047] Embodiment 2~5: take the soda lime silicate float glass with thickness 1.8mm and the ultra clear glass of 1.1mm as substrate, the white glass substrate of 1.8mm has 85.27% in the 900~1000nm wavelength range Transmittance and 7.77% absorptivity, 1.1mm ultra-white glass has 91.24% transmittance and 1.19% absorptivity in the wavelength range of 900-1000nm, after the substrate has been cut, edged, washed and dried Carry out coating deposition, deposit the nano anti-reflection film as shown in Table 2 on the 1.1mm ultra-clear glass, after the deposition is completed, match the 1.1mm ultra-clear glass with the 1.8mm white glass substrate, according to the high temperature of automobile glass The molding process is formed, and a PVB diaphragm with a thickness of 0.76 mm is sandwiched in the middle, and the laminated glass of Examples 2-5 is made through the initial pressure and high-pressure process of the combined sheet and the installation of accessories in other processes. ...

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Abstract

The invention relates to the field of glass products, in particular to window glass mounted on a traffic facility, and in particular provides laminated glass which is used in match with a laser radaror a near-infrared camera for a vehicle. The laminated glass comprises an outer transparent plate, an inner transparent plate and a thermoplastic membrane, wherein a nano antireflection film is arranged on a first surface and / or a fourth surface; the nano antireflection film is used for increasing the transmittance of the laminated glass within a wavelength range of 900-1000nm; and the laminated glass has at least transmittance of 80% within the wavelength range of 900-1000nm. By adopting the laminated glass, the requirement that energy loss of laser of the laser radar or near-infrared light of the near-infrared camera is less than 20% when the light penetrates through the laminated glass can be met, the power of the laser radar or the near-infrared camera does not need to be greatly increased, normal operation of the laser radar or the near-infrared camera can be ensured, and in addition, the use precision of the laser radar or the near-infrared camera can be improved.

Description

[0001] Technical field: [0002] The invention relates to the field of glass products, in particular to window glass installed on vehicles, and specifically provides a laminated glass for vehicles that can be used in conjunction with a laser radar or a near-infrared camera. [0003] Background technique: [0004] In order to meet the needs of advanced driver assistance systems (ADAS), cars are usually equipped with a variety of sensors, such as cameras, ultrasonic sensors and millimeter-wave radars, etc. Some of the cameras can use near-infrared cameras with a wavelength of 940nm; the same Ground, in order to meet the needs of automatic driving, each self-driving car is also equipped with a laser radar, and the laser wavelength of the commonly used laser radar is about 905nm. The current lidar and some near-infrared cameras are installed on the outside of the car, which requires them to be resistant to strong winds, salt spray, UV aging, and cold and hot environments, so as to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B7/023B32B17/10B32B27/30B32B27/06B32B33/00B32B37/10C03C27/12B60J1/00C09D1/00
CPCB32B7/023B32B17/064B32B27/306B32B33/00B32B37/10B32B2255/20B32B2255/28B32B2307/412B32B2605/08B60J1/001C03C27/10C09D1/00
Inventor 曹晖黄凤珠曾东林柱福原康太
Owner FUYAO GLASS IND GROUP CO LTD
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