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. 12, 2012
Filed:
Feb. 09, 2009
Applicants:
Shunji Kamijima, Hara-mura, JP;
Kiyoto Sudo, Matsumoto, JP;
Inventors:
Shunji Kamijima, Hara-mura, JP;
Kiyoto Sudo, Matsumoto, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A light source device includes: a plurality of light emission units which emit light; a scattering unit which scatters at least a part of light received from the plural light emission units; a light detecting unit which detects a part of light emitted from the plural light emission units and scattered by the scattering unit; and a control unit which controls the plural light emission units based on detection result from the light detecting unit.