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:
Oct. 13, 2020
Filed:
Jul. 24, 2018
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventor:
Makoto Maeda, Nara, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 21/20 (2006.01); G02B 5/02 (2006.01); G02B 26/00 (2006.01);
U.S. Cl.
CPC ...
G03B 21/204 (2013.01); G02B 5/0242 (2013.01); G02B 5/0284 (2013.01); G02B 26/008 (2013.01); G03B 21/2066 (2013.01);
Abstract
A phosphor plate includes: a plate substrate, a reflection coating provided on a surface of the plate substrate, a reflecting layer provided on the reflection coating, and composed of metallic oxide and transparent binder, and a phosphor layer provided on the reflecting layer. The reflecting layer has a thickness ranging from 10 μm to 90 μm inclusive, and the metallic oxide is contained in the reflecting layer at a volume density ranging from 15 vol % to 40 vol %.