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:
Dec. 15, 2015
Filed:
Jul. 27, 2011
Applicants:
Norikazu Kadotani, Matsumoto, JP;
Yohei Sakai, Suwa, JP;
Inventors:
Norikazu Kadotani, Matsumoto, JP;
Yohei Sakai, Suwa, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 21/18 (2006.01); G03B 21/16 (2006.01); G03B 33/12 (2006.01); H04N 9/31 (2006.01);
U.S. Cl.
CPC ...
G03B 21/16 (2013.01); G03B 33/12 (2013.01); H04N 9/3144 (2013.01);
Abstract
A projector includes an optical element and a cooling device configured to supply cooling air along the surface of the optical element. The cooling device supplies the cooling air in two supply directions crossing each other and extending from one edge to the other edge of two opposed edges of the optical element.