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:
Apr. 02, 2019
Filed:
Feb. 06, 2018
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventor:
Masaya Masuda, Azumino, JP;
Assignee:
SEIKO EPSON CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 21/20 (2006.01); H04N 9/31 (2006.01); F21V 9/32 (2018.01); F21K 9/64 (2016.01); G03B 21/16 (2006.01); G03B 33/12 (2006.01); G03B 21/00 (2006.01);
U.S. Cl.
CPC ...
G03B 21/204 (2013.01); F21K 9/64 (2016.08); F21V 9/32 (2018.02); G03B 21/16 (2013.01); G03B 21/208 (2013.01); G03B 21/2066 (2013.01); H04N 9/3158 (2013.01); G03B 21/006 (2013.01); G03B 33/12 (2013.01);
Abstract
A wavelength conversion device according to the invention includes a wavelength conversion layer having a plurality of pores, and excited by light in a first wavelength band to thereby generate light in a second wavelength band different from the first wavelength band, a transparent member adapted to fill in a recessed section occurring on a surface of the wavelength conversion layer due to the pore, a reflecting member formed on the surface of the wavelength conversion layer and a surface of the transparent member, and a base member disposed on an opposite side to the wavelength conversion layer of the reflecting member.