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. 24, 2018
Filed:
Nov. 29, 2016
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventors:
Akio Ikesue, Nagoya, JP;
Takashi Endo, Azumino, JP;
Assignee:
SEIKO EPSON CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 21/20 (2006.01); H04N 9/31 (2006.01); C04B 35/10 (2006.01); G03B 21/00 (2006.01); G03B 21/16 (2006.01); C09K 11/77 (2006.01); C04B 35/44 (2006.01);
U.S. Cl.
CPC ...
G03B 21/204 (2013.01); C04B 35/10 (2013.01); C04B 35/44 (2013.01); C09K 11/7774 (2013.01); G03B 21/005 (2013.01); G03B 21/16 (2013.01); H04N 9/3105 (2013.01); H04N 9/3158 (2013.01); H04N 9/3161 (2013.01); C04B 2235/3222 (2013.01); C04B 2235/3225 (2013.01); C04B 2235/3229 (2013.01); C04B 2235/764 (2013.01); C04B 2235/80 (2013.01); C04B 2235/85 (2013.01); C04B 2235/9646 (2013.01);
Abstract
A phosphor includes a sintered body of a ceramic material. The sintered body contains Ce:YAlOas a main phase and a ceramic material as a subphase. The ceramic material has a refractive index different from that of the main phase. The sintered body has a crystal grain boundary and a void at the crystal grain boundary.