Invention Grant
- Patent Title: Application of electrochromic polymers as color and opacity light filters
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Application No.: US15440519Application Date: 2017-02-23
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Publication No.: US10527252B2Publication Date: 2020-01-07
- Inventor: Nicholas V. Friszell , Gregory M. Castillo
- Applicant: GM Global Technology Operations LLC
- Applicant Address: US MI Detroit
- Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee Address: US MI Detroit
- Agency: Cantor Colburn LLP
- Main IPC: F21V9/00
- IPC: F21V9/00 ; F21S41/64 ; F21S41/663 ; F21S43/20 ; G02F1/157 ; G02F1/163 ; G02F1/1516 ; F21W103/20 ; F21W106/00 ; F21W102/00 ; F21W103/00

Abstract:
A vehicle lighting system includes a light source; a first lighting subsystem includes a first light path having a first end positioned to receive light from the light source and to deliver the light to a second end of the first light path; and a first electrochromic filter disposed in the first light path; and a second lighting subsystem includes a second light path having a first end positioned to receive light from the light source and to deliver the light to a second end of the second light path; and a second electrochromic filter disposed in the second light path, wherein the first lighting subsystem provides a first lighting function, and wherein the second lighting subsystem provides a second lighting function.
Public/Granted literature
- US20180238517A1 APPLICATION OF ELECTROCHROMIC POLYMERS AS COLOR AND OPACITY LIGHT FILTERS Public/Granted day:2018-08-23
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