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:
Feb. 14, 2023
Filed:
Mar. 13, 2020
Applicants:
Yusuke Ohta, Kanagawa, JP;
Toshiyuki Ikeoh, Düsseldorf, DE;
Atsushi Sakai, Tokyo, JP;
Inventors:
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 5/02253 (2021.01); H01S 5/183 (2006.01); H01S 5/343 (2006.01); B25J 19/02 (2006.01); H01S 5/42 (2006.01); G01S 17/02 (2020.01); G01N 21/88 (2006.01); H01S 5/02257 (2021.01);
U.S. Cl.
CPC ...
H01S 5/02253 (2021.01); B25J 19/022 (2013.01); G01N 21/88 (2013.01); G01S 17/02 (2013.01); H01S 5/02257 (2021.01); H01S 5/18361 (2013.01); H01S 5/18388 (2013.01); H01S 5/34313 (2013.01); H01S 5/34353 (2013.01); H01S 5/423 (2013.01);
Abstract
An optical device includes: a substrate having a first surface, and a second surface opposite of the first surface; a plurality of surface emitting laser elements provided on the first surface of the substrate and configured to emit light in a direction intersecting the first surface; a plurality of optical elements disposed on the second surface so as to respectively correspond to the plurality of surface emitting laser elements; and an anti-reflection structure between the substrate and the plurality of optical elements.