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:
Nov. 11, 2025
Filed:
Mar. 10, 2021
Applicant:
Nichia Corporation, Anan, JP;
Inventor:
Tadaaki Miyata, Yokohama, JP;
Assignee:
NICHIA CORPORATION, Anan, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 1/10 (2015.01); G02B 1/11 (2015.01); G02B 1/115 (2015.01); G02B 19/00 (2006.01);
U.S. Cl.
CPC ...
G02B 19/0028 (2013.01); G02B 1/11 (2013.01); G02B 1/115 (2013.01); G02B 19/0033 (2013.01);
Abstract
A light source device includes a condensing lens, a laser light source, a first anti-reflection film, and a second anti-reflection film. The condensing lens has a curved surface. The laser light source includes a plurality of laser elements configured to emit laser beams incident on different regions of the curved surface of the condensing lens. The first anti-reflection film and the second anti-reflection film are disposed in different regions of the curved surface. The first anti-reflection film has a reflectance characteristic different from a reflectance characteristic of the second anti-reflection film.