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Glass laminate with inlay obscuration having superior strength and optical quality

A technology for laminated glass and shielding, applied in windshields, glass/slag layered products, coatings, etc., can solve problems such as high thermal gradients and distortion/deformation, and achieve residual stress elimination, less surface mismatch, and residual low stress effect

Pending Publication Date: 2020-07-03
AGP AMERICA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is also where the highest temperature is needed to bend the glass, resulting in higher thermal gradients and distortion / deformation

Method used

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  • Glass laminate with inlay obscuration having superior strength and optical quality
  • Glass laminate with inlay obscuration having superior strength and optical quality
  • Glass laminate with inlay obscuration having superior strength and optical quality

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0124] Figure 8 The windshield comprises a ceramic frit black band 32 and a camera mask 34 produced by an opaque black plastic PVB inlay, which is cut to size and embedded in the plastic into the cutout in the PVB interlayer. The inlay also includes cutouts that allow transparent PVB to be embedded in the field of view of each of the two cameras. In the case of inserting an interlayer for assembly, the inlay is assembled after the glass has been bent and cooled during the lamination process. No adhesion promoter is required.

Embodiment 2

[0126] Figure 8 The windshield shown consists of two wedge-shaped / formed plastic sandwiches with a layer of infrared heat reflective mylar sandwiched between them. A ceramic frit black band 32 is produced by conventional means, and an opaque black plastic PVB inlay is cut to size and embedded in the cutout of the PVB interlayer. The inlay also includes a cutout that allows transparent PVB to be embedded in the field of view of each of the two cameras. In the case of inserting an interlayer for assembly, the inlay is assembled after the glass has been bent and cooled during the lamination process. No adhesion promoter is required.

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Abstract

The use of camera-based safety systems is growing at a rapid rate in modern automobiles. At the same time, windshields, where many of the cameras are mounted, are becoming larger and more complex in shape. As the industry moves towards vehicles with full autonomous capability, the number of cameras required and the resolution of the cameras are both increasing. However, the optical quality of thewindshield is less than optimal. One of the problems is caused by the typical black enamel frit that is printed on the glass, prior to heating and bending, to hide or obscure the camera hardware. Theabrupt thermal gradients during bending, caused by the heat absorbing black frit, result in a high level of distortion in the camera field of view. The object of this invention is to provide a laminated automotive glazing having an obscuration area produced by creating an obscuration after heating and bending the glass by removing a portion of the plastic interlayer glass in or near the camera field of view (camera obscuration) or / and in the edges of the windshield (black band) and replacing it with an inlay made of a substantially opaque plastic or other suitable material in or near the camera field of view (camera obscuration) or / and in the edges of the windshield (black band) rather than printing and firing an enamel frit on the glass. This results in a laminate having superior opticalquality, higher strength and a lower probability of breakage as compared to a laminate with a black enamel frit obscuration.

Description

[0001] field of invention [0002] The presently published invention relates to a laminated automotive glass with a camera shield, which is strong and provides a field of view with excellent optical quality, and a method of manufacturing the same. [0003] Background of the invention [0004] Black enamel frit masking is commonly printed on laminated and tempered automotive safety glass. Such shelters have multiple functional and aesthetic requirements. The occlusion must be opaque. This is to prevent the adhesive that attaches the glass to the vehicle from being seen from the outside, and to protect the adhesive from the harmful effects of UV rays. For components mounted on the inner surface of the glass, the shade also serves the same purpose. On heated and coated glass, masking is used to hide coating edges, bus bars, conductors and anything else that detracts from the vehicle's appearance. The screens also had to meet additional aesthetic requirements of having a deep b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B17/10C03C27/12B32B3/08
CPCB32B17/10036B32B17/10174B32B17/10293B32B17/10568B32B17/1066B32B17/10743B32B17/10761B32B17/1077B32B17/10788B32B17/10908B32B17/10981B32B3/08B32B1/00B32B17/10348B32B17/10005B32B2367/00B32B17/10935B32B27/08B32B27/30B32B27/36B32B2307/306B32B2307/4023B32B2307/412B32B2307/416B32B2315/08B32B2329/06B32B2605/006B32B2605/08B60J1/001B60R11/04B60R2011/0026
Inventor 马里奥·阿图罗·曼海姆·阿斯塔特查尔斯·斯蒂芬·弗尔策尔劳拉·格拉纳多斯·卡罗梅林·罗哈斯·瓦莱安德烈斯·费尔南多·萨缅托·桑托斯埃琳娜·K·门多萨·卡兰萨
Owner AGP AMERICA
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