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:
Dec. 16, 2025
Filed:
Jan. 25, 2023
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventor:
Norikazu Kadotani, Azumino, JP;
Assignee:
SEIKO EPSON CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 21/16 (2006.01); G02B 27/14 (2006.01); G03B 21/00 (2006.01); G03B 21/20 (2006.01);
U.S. Cl.
CPC ...
G03B 21/16 (2013.01); G03B 21/005 (2013.01); G03B 21/2013 (2013.01); G02B 27/141 (2013.01); G02B 2207/117 (2013.01);
Abstract
A light source apparatus according to an aspect of the present disclosure includes a circuit substrate that has a first surface and a second surface provided at the side opposite from the first surface and has a first opening passing through the first and second surfaces, a first light emitter that is electrically coupled to the circuit substrate and emits first light having a first wavelength band, and a thermal diffuser provided at the second surface of the circuit substrate, and the first light emitter is provided at the thermal diffuser exposed in the first opening.