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:
Aug. 22, 2017
Filed:
Jan. 25, 2016
Sharp Kabushiki Kaisha, Osaka-shi, Osaka, JP;
National Institute for Materials Science, Tsukuba-shi, Ibaraki, JP;
Kenichi Yoshimura, Osaka, JP;
Makoto Izumi, Osaka, JP;
Masamichi Harada, Tsukuba, JP;
Hiroshi Fukunaga, Osaka, JP;
Kazunori Annen, Osaka, JP;
Naoto Hirosaki, Tsukuba, JP;
Hiroyo Segawa, Tsukuba, JP;
SHARP KABUSHIKI KAISHA, Sakai, JP;
NATIONAL INSTITUTE FOR MATERIALS SCIENCE, Ibaraki, JP;
Abstract
A wavelength converting member includes silica glass and a plurality of fluorescent material particles including an oxynitride or nitride fluorescent material and dispersed in the silica glass. The plurality of fluorescent material particles include at least two kinds of fluorescent material particles including (i) first fluorescent material particles that emit a fluorescence having a first peak wavelength and (ii) second fluorescent material particles that emit a fluorescence having a second peak wavelength. The wavelength converting member has a density within a range from 0.8 g/cmto 1.2 g/cm.