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:
Jul. 14, 2020
Filed:
Jan. 16, 2019
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventor:
Takashi Ikeda, Osaka, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 21/20 (2006.01); G02B 26/00 (2006.01); H04N 9/31 (2006.01); F21K 9/64 (2016.01);
U.S. Cl.
CPC ...
G03B 21/204 (2013.01); F21K 9/64 (2016.08); G02B 26/008 (2013.01); G03B 21/2013 (2013.01); G03B 21/2073 (2013.01); H04N 9/3161 (2013.01);
Abstract
A phosphor wheel of a first exemplary embodiment in the present disclosure includes a base plate, an annular phosphor provided on the base plate, and a reflective coating provided on a partial area of the annular phosphor. Further, a phosphor wheel of a second exemplary embodiment includes a base plate, an annular phosphor layer that is provided on the base plate and constituted by a plurality of phosphor segments, and a reflective coating provided on a partial area of the annular phosphor layer.