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:
Mar. 29, 2016
Filed:
Jan. 11, 2012
Applicants:
Akihiro Kashiwagi, Shiojiri, JP;
Akira Miyamae, Fujimi-machi, JP;
Inventors:
Akihiro Kashiwagi, Shiojiri, JP;
Akira Miyamae, Fujimi-machi, JP;
Assignee:
SEIKO EPSON CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 21/14 (2006.01); H04N 9/31 (2006.01); G02B 7/00 (2006.01); G02B 26/00 (2006.01); G03B 21/20 (2006.01); G03B 33/08 (2006.01); G02B 27/14 (2006.01);
U.S. Cl.
CPC ...
H04N 9/3155 (2013.01); G02B 7/006 (2013.01); G02B 26/008 (2013.01); G03B 21/204 (2013.01); G03B 33/08 (2013.01); G02B 27/149 (2013.01);
Abstract
An illumination device includes a substrate including a fluorescent layer, and capable of rotating around a predetermined rotary shaft, a light source adapted to emit an excitation light adapted to excite the fluorescent layer, and a control device adapted to control emission of the light source so that, when the substrate is rotating, a first area of the fluorescent layer is irradiated with the excitation light in one round, and at least a part of the first area is not irradiated with the excitation light in another round.