Invention Grant
- Patent Title: Laser protective film and laser protective device comprising the same
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Application No.: US16498760Application Date: 2018-10-10
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Publication No.: US11256008B2Publication Date: 2022-02-22
- Inventor: Guofu Zhou , Xiaowen Hu , Wei Zhao , Qiumei Nie , Weijie Zeng , Haitao Sun
- Applicant: South China Normal University , Shenzhen Guohua Optoelectronics Co., Ltd. , Academy of Shenzhen Guohua Optoelectronics
- Applicant Address: CN Guangzhou; CN Shenzhen; CN Shenzhen
- Assignee: South China Normal University,Shenzhen Guohua Optoelectronics Co., Ltd.,Academy of Shenzhen Guohua Optoelectronics
- Current Assignee: South China Normal University,Shenzhen Guohua Optoelectronics Co., Ltd.,Academy of Shenzhen Guohua Optoelectronics
- Current Assignee Address: CN Guangzhou; CN Shenzhen; CN Shenzhen
- Agency: Gottlieb, Rackman & Reisman, P.C.
- Priority: CN201810517446.X 20180525
- International Application: PCT/CN2018/109636 WO 20181010
- International Announcement: WO2019/223213 WO 20191128
- Main IPC: G02B5/08
- IPC: G02B5/08 ; G02B5/00

Abstract:
Disclosed are a laser protective film and a laser protective device comprising the same. The laser protective film comprises, stackingly disposed: a first liquid crystal polymer layer for reflecting left-hand polarized light, a second liquid crystal polymer layer for reflecting right-hand polarized light, and a third liquid crystal polymer layer for absorbing incident laser. In the above way, the laser protective film of the present disclosure has a large angle of protection, high flexibility. In addition, it is easy to find any damage to the laser protective film of the present disclosure. Moreover, it can make modification to existing equipment. Thus, the present disclosure has a good application prospect in many fields such as laser goggles, window glass and the like.
Public/Granted literature
- US20200333514A1 LASER PROTECTIVE FILM AND LASER PROTECTIVE DEVICE COMPRISING THE SAME Public/Granted day:2020-10-22
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