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:
May. 29, 2018
Filed:
May. 17, 2017
Applicant:
Panasonic Intellectual Property Manangement Co., Ltd., Osaka, JP;
Inventors:
Naoya Kitade, Osaka, JP;
Manabu Chikayama, Osaka, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 21/20 (2006.01); G03B 21/16 (2006.01); G02B 26/00 (2006.01); G02B 7/00 (2006.01); H04N 9/31 (2006.01);
U.S. Cl.
CPC ...
G03B 21/16 (2013.01); G02B 7/008 (2013.01); G02B 26/008 (2013.01); G03B 21/204 (2013.01); H04N 9/3114 (2013.01);
Abstract
A phosphor wheel includes: a substrate having a first main surface, a second main surface opposite to the first main surface, and an open portion; a phosphor layer provided on the first main surface; and a fin provided on the second main surface. The fin is nearer a center of the substrate than the phosphor layer is, and the open portion is located between the phosphor layer and the fin.