logo

For the Inventor, By the Inventor

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.:

US 9300929 B1

PDFFull Text
Date of Patent:
Mar. 29, 2016

Filed:

Jan. 11, 2012

Illumination device and projector

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:

Oliff PLC

Primary Examiner:

William C Dowling

Assistant Examiner:

Jerry Brooks

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.

Find Patent Forward Citations

Kashiwagi, Akihiro. (2016). Illumination device and projector (U.S. Patent No. 9300929). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9300929

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…