The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 22, 2020
Filed:
Mar. 28, 2017
Applicant:
3m Innovative Properties Company, St. Paul, MN (US);
Inventor:
Kazuhiko Toyooka, Yamagata, JP;
Assignee:
3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21S 41/135 (2018.01); F21S 43/00 (2018.01); F21S 41/19 (2018.01); B60Q 1/04 (2006.01);
U.S. Cl.
CPC ...
F21S 41/135 (2018.01); B60Q 1/04 (2013.01); F21S 41/19 (2018.01); F21S 43/00 (2018.01); B60Q 2300/056 (2013.01);
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.