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:
Feb. 18, 2020
Filed:
Mar. 26, 2019
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventor:
Osamu Arakawa, Shiojiri, JP;
Assignee:
SEIKO EPSON CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 21/20 (2006.01); H04N 9/31 (2006.01); G03B 33/12 (2006.01);
U.S. Cl.
CPC ...
G03B 21/2066 (2013.01); G03B 21/204 (2013.01); H04N 9/3158 (2013.01); G03B 21/2013 (2013.01); G03B 33/12 (2013.01);
Abstract
A light source apparatus according to an aspect of the present disclosure includes an excitation light source and a wavelength converter including a transparent phosphor and a base. The wavelength converter has a light incident area, a first area, and a second area, and the wavelength converter includes a second reflector (angle changer) provided in a portion corresponding to the second area.