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:
Nov. 13, 2012
Filed:
Jul. 28, 2010
Kunihiko Takagi, Okaya, JP;
Kaname Nagatani, Matsumoto, JP;
Akira Egawa, Shiojiri, JP;
Tetsuo Shimizu, Matsumoto, JP;
Joji Karasawa, Okaya, JP;
Fumihide Sasaki, Matsumoto, JP;
Kunihiko Takagi, Okaya, JP;
Kaname Nagatani, Matsumoto, JP;
Akira Egawa, Shiojiri, JP;
Tetsuo Shimizu, Matsumoto, JP;
Joji Karasawa, Okaya, JP;
Fumihide Sasaki, Matsumoto, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A projector includes: spatial light modulation devices; and a cooling duct configured to flow a cooling air for sequentially cooling the spatial light modulation devices, the cooling duct has a first flow path formed by portions including the light entrance surface of at least one of the spatial light modulation devices for the respective color lights, a second flow path formed by portions including the light exit surface of the corresponding spatial light modulation device, and a junction area where the cooling air flowing through the first flow path and the cooling air flowing through the second flow path join each other, and the junction area is disposed at a downstream position of the cooling air with respect to the spatial light modulation device provided for a predetermined color light whose light amount is the maximum in the respective color lights that enter the light entrance surface.