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:
Oct. 10, 2017
Filed:
Nov. 23, 2016
Applicant:
Nobuyuki Arai, Kanagawa, JP;
Inventor:
Nobuyuki Arai, Kanagawa, JP;
Assignee:
RICOH COMPANY, LTD., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/42 (2006.01); G02B 6/32 (2006.01); G02B 3/04 (2006.01); H01S 5/42 (2006.01); G02B 27/09 (2006.01); H01S 5/183 (2006.01); G02B 6/26 (2006.01); G02B 3/00 (2006.01); G02B 3/02 (2006.01); H01S 5/022 (2006.01);
U.S. Cl.
CPC ...
G02B 6/4296 (2013.01); G02B 3/0056 (2013.01); G02B 3/04 (2013.01); G02B 6/262 (2013.01); G02B 6/32 (2013.01); G02B 27/0905 (2013.01); G02B 27/0922 (2013.01); H01S 5/18388 (2013.01); H01S 5/423 (2013.01); G02B 3/02 (2013.01); H01S 5/02284 (2013.01);
Abstract
A laser device is disclosed. The laser device includes a surface-emitting laser including a plurality of emission points, a lens array including a plurality of lenses arranged so as to correspond to a position of the surface-emitting laser; and a light condensing optical system that condenses a plurality of light fluxes emitted through the lens array and enters the condensed lights to an input end of an optical fiber. The light condensing optical system includes an aspheric lens having positive refractive power. Both of an incidence surface and an emission surface of the aspheric lens have aspheric shapes.