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:
Oct. 29, 2019
Filed:
Oct. 03, 2016
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventors:
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 9/31 (2006.01); G03B 21/00 (2006.01); G03B 21/14 (2006.01); G03B 21/16 (2006.01);
U.S. Cl.
CPC ...
H04N 9/3144 (2013.01); G03B 21/005 (2013.01); G03B 21/142 (2013.01); G03B 21/16 (2013.01); G03B 2205/0069 (2013.01);
Abstract
A projector includes: a light source; a light modulation device that modulates light emitted from the light source; an optical projection device that projects the light modulated by the light modulation device; a light path changing element (shift element) that is disposed between the light modulation device and the optical projection device and changes a light path of the light modulated by the light modulation device through fluctuation; and a cooling device that cools the light modulation device and the light path changing element (shift element).