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:
Dec. 20, 2022
Filed:
Jan. 17, 2020
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventor:
Koichi Akiyama, Matsumoto, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/30 (2006.01); G02B 27/09 (2006.01); H04N 9/31 (2006.01); G03B 21/20 (2006.01); G02B 27/14 (2006.01);
U.S. Cl.
CPC ...
G02B 27/30 (2013.01); G02B 27/0905 (2013.01); G02B 27/0966 (2013.01); G02B 27/141 (2013.01); G03B 21/20 (2013.01); H04N 9/3152 (2013.01); H04N 9/3161 (2013.01);
Abstract
The present disclosure relates to a light source apparatus including a laser light source that outputs a laser beam and a collimator system that parallelizes the laser beam. The collimator system includes three lens groups. A first group includes a first anamorphic lens having negative power in a first direction. A second group includes a second anamorphic lens having positive power in a second direction perpendicular to the first direction. A third group includes a third anamorphic lens having positive power in the first direction.