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. 31, 2021
Filed:
Jan. 06, 2021
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Masayuki Hogiri, Osaka, JP;
Yuki Ueda, Osaka, JP;
Yoshihisa Nagasaki, Osaka, JP;
Kojiro Okuyama, Nara, JP;
Abstract
A light source device includes: an excitation light source that emits excitation light having an energy density of 10 W/mmor more; and a phosphor layer that has phosphor particles embedded in the matrix. The phosphor particles include at least one selected from the group consisting of metal oxides represented by a following formula (1) and metal oxides represented by a following formula (2).YRCeAlGaO  (1)YRCeAlScO  (2) In the formula (1), Rincludes at least one selected from the group consisting of Gd and Tb, and x, y, and zsatisfy 0.003≤x≤0.03, 0≤y≤2.1, and 0≤z≤2.2, respectively. In the formula (2), Rincludes at least one selected from the group consisting of Gd and Tb, and x, y, and zsatisfy 0.003≤x≤0.03, 0≤y≤2.1 and 0≤z≤1.5, respectively.