Invention Grant
- Patent Title: Low-glare automotive headlight
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Application No.: US16089752Application Date: 2017-03-28
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Publication No.: US10781986B2Publication Date: 2020-09-22
- Inventor: Kazuhiko Toyooka
- Applicant: 3M INNOVATIVE PROPERTIES COMPANY
- Applicant Address: US MN St. Paul
- Assignee: 3M INNOVATIVE PROPERTIES COMPANY
- Current Assignee: 3M INNOVATIVE PROPERTIES COMPANY
- Current Assignee Address: US MN St. Paul
- Agency: 3M IPC
- International Application: PCT/US2017/024566 WO 20170328
- International Announcement: WO2017/172787 WO 20171005
- Main IPC: F21S41/135
- IPC: F21S41/135 ; F21S43/00 ; F21S41/19 ; B60Q1/04

Abstract:
Methods for reducing road surface glare from an automotive headlight for an observer not viewing through a polarizing filter are described. The use of a reflective polarizer for reducing road surface glare from an automotive headlight for an observer not viewing through a polarizing filter are also described. A low-beam headlight including a light source, a housing, and a reflective polarizer is also described. The reflective polarizer has a pass axis and the pass axis forms an angle with a road surface between 45 degrees and 135 degrees.
Public/Granted literature
- US20190120452A1 LOW-GLARE AUTOMOTIVE HEADLIGHT Public/Granted day:2019-04-25
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