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:
Jan. 01, 2019
Filed:
Jan. 20, 2016
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventor:
Akira Egawa, Shiojiri, JP;
Assignee:
SEIKO EPSON CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 29/77 (2015.01); G03B 21/16 (2006.01); G03B 21/20 (2006.01); H04N 9/31 (2006.01); G02B 26/00 (2006.01);
U.S. Cl.
CPC ...
G03B 21/16 (2013.01); G02B 26/008 (2013.01); G03B 21/204 (2013.01); G03B 21/2066 (2013.01); H04N 9/3144 (2013.01); H04N 9/3158 (2013.01);
Abstract
A wavelength conversion device includes a substrate having a first surface and a second surface, a wavelength conversion element provided on the first surface, and a heat sink provided on the second surface separately from the substrate.