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:
Aug. 11, 2020
Filed:
Sep. 08, 2017
Applicant:
Fujikura Ltd., Tokyo, JP;
Inventor:
Yohei Kasai, Chiba, JP;
Assignee:
Fujikura Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/42 (2006.01); G02B 7/02 (2006.01); G02B 27/30 (2006.01); H01S 5/022 (2006.01); H01S 5/40 (2006.01);
U.S. Cl.
CPC ...
G02B 6/4206 (2013.01); G02B 6/4214 (2013.01); G02B 7/021 (2013.01); G02B 7/025 (2013.01); G02B 27/30 (2013.01); H01S 5/02284 (2013.01); H01S 5/02288 (2013.01); H01S 5/02292 (2013.01); H01S 5/4012 (2013.01);
Abstract
A light-guiding device includes: a group of mirrors that converts a first beam bundle including a plurality of first laser beams into a second beam bundle including a plurality of second laser beams; a group of collimating lenses disposed at a stage previous to the group of mirrors and including collimating lenses that each collimate a divergence, in an F-axis direction, of a corresponding one of the plurality of first laser beams; and a converging lens disposed at a stage subsequent to the group of mirrors, the converging lens converges the second beam bundle by refracting each of the plurality of second laser beams.