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. 17, 2015
Filed:
Dec. 19, 2013
Applicants:
Kazuhiro Harasaka, Miyagi, JP;
Shunichi Sato, Miyagi, JP;
Naoto Jikutani, Miyagi, JP;
Inventors:
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 5/00 (2006.01); G03G 15/04 (2006.01); B82Y 20/00 (2011.01); H01S 5/183 (2006.01); G02B 26/10 (2006.01); H01S 5/18 (2006.01); H01S 5/32 (2006.01); H01S 5/34 (2006.01); H01S 5/42 (2006.01);
U.S. Cl.
CPC ...
G03G 15/04 (2013.01); B82Y 20/00 (2013.01); H01S 5/18391 (2013.01); G02B 26/10 (2013.01); H01S 5/18 (2013.01); H01S 5/18311 (2013.01); H01S 5/18347 (2013.01); H01S 5/1835 (2013.01); H01S 5/18355 (2013.01); H01S 5/18358 (2013.01); H01S 5/3202 (2013.01); H01S 5/3403 (2013.01); H01S 5/423 (2013.01);
Abstract
A surface-emitting laser device configured to emit laser light in a direction perpendicular to a substrate includes a p-side electrode surrounding an emitting area on an emitting surface to emit the laser light; and a transparent dielectric film formed on an outside area outside a center part of the emitting area and within the emitting area to lower a reflectance to be less than that of the center part. The outside area within the emitting area has shape anisotropy in two mutually perpendicular directions.