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:
Mar. 03, 2020
Filed:
Apr. 04, 2018
Applicant:
Stanley Electric Co., Ltd., Tokyo, JP;
Inventor:
Shinya Kogure, Kanagawa, JP;
Assignee:
STANLEY ELECTRIC CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21S 41/30 (2018.01); F21S 41/135 (2018.01); B60Q 11/00 (2006.01); F21S 41/64 (2018.01); F21S 41/20 (2018.01); F21S 41/16 (2018.01); F21S 41/675 (2018.01); H01S 5/068 (2006.01); F21S 41/14 (2018.01); H01S 5/40 (2006.01); H01S 5/323 (2006.01); F21Y 115/30 (2016.01); H01S 5/00 (2006.01);
U.S. Cl.
CPC ...
B60Q 11/005 (2013.01); F21S 41/135 (2018.01); F21S 41/14 (2018.01); F21S 41/16 (2018.01); F21S 41/285 (2018.01); F21S 41/30 (2018.01); F21S 41/645 (2018.01); F21S 41/675 (2018.01); H01S 5/06825 (2013.01); H01S 5/4012 (2013.01); F21Y 2115/30 (2016.08); H01S 5/005 (2013.01); H01S 5/32341 (2013.01); H01S 5/4093 (2013.01);
Abstract
An optical source unit includes a first optical source for emitting a P-polarized light beam, a first detector for detecting whether the first optical source is normal or abnormal, a second optical source for emitting an S-polarized light beam, a second detector for detecting whether the second optical source is normal or abnormal, and a light beam combining section including a polarization beam splitter for transmitting the P-polarized light beam and reflecting the S-polarized light beam to combine the P-polarized light beam and the S-polarized light beam into an output light beam of the optical source unit.