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:
Jun. 28, 2016
Filed:
Feb. 06, 2014
Seiko Epson Corporation, Tokyo, JP;
Junichi Okamoto, Fujimi-machi, JP;
Akira Egawa, Shiojiri, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
An illumination device includes a light source device which has a plurality of light emission regions including a first light emission region and a second light emission region, and is able to adjust the amount of light emitted from each of the plurality of light emission regions, a light source control device which controls the light source device such that, in a first period, the amount of light emitted from the first light emission region is different from the amount of light emitted from other light emission regions among the plurality of light emission regions, and in a second period, the amount of light emitted from the second light emission region is different from the amount of light emitted from the second light emission region in the first period, and an illumination optical system which superimposes light from the plurality of light emission regions in an illumination region.