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. 29, 2010
Filed:
Jan. 22, 2007
Applicants:
Satoshi Kinoshita, Matsumoto, JP;
Makoto Zakoji, Shiojiri, JP;
Inventors:
Satoshi Kinoshita, Matsumoto, JP;
Makoto Zakoji, Shiojiri, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 21/18 (2006.01); G02F 1/1333 (2006.01);
U.S. Cl.
CPC ...
Abstract
An optical device includes: a light modulation element that modulates a luminous flux emitted from a light source; a casing that houses the light modulation element; a holding member that holds the light modulation element and exposes a part thereof to outside; a refrigerant housed in a housing space surrounded by the casing, the holding member and the light modulation element; and a convection start unit that is provided in the casing and causes convection of refrigerant.