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. 20, 2018
Filed:
Oct. 03, 2016
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventor:
Akira Egawa, Shiojiri, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 26/00 (2006.01); H04N 9/31 (2006.01); G03B 21/20 (2006.01); G03B 21/16 (2006.01);
U.S. Cl.
CPC ...
H04N 9/3114 (2013.01); G02B 26/008 (2013.01); G03B 21/16 (2013.01); G03B 21/204 (2013.01); H04N 9/3105 (2013.01); H04N 9/3144 (2013.01); H04N 9/3158 (2013.01);
Abstract
The invention relates to a wavelength converter including a rotating device, a substrate rotated by the rotating device, a wavelength conversion element provided on a first surface of the substrate, and a heat sink that is provided on a second surface facing away from the first surface and is a member different from the substrate. The heat sink includes a plurality of fins, and the substrate is formed of a light transmissive member.