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. 31, 2013
Filed:
Jan. 25, 2011
Yasunaga Miyazawa, Okaya, JP;
Yoshitaka Itoh, Matsumoto, JP;
Toshihiko Sakai, Matsumoto, JP;
Katsuhiro Matsuyama, Asahi-mura, JP;
Yasuteru Miyaoka, Shiojiri, JP;
Yasunaga Miyazawa, Okaya, JP;
Yoshitaka Itoh, Matsumoto, JP;
Toshihiko Sakai, Matsumoto, JP;
Katsuhiro Matsuyama, Asahi-mura, JP;
Yasuteru Miyaoka, Shiojiri, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A projector includes: a housing; an optical element accommodated in the housing; and an air supply unit configured to generate a flow of cooling air for cooling a cooling target element including the optical element, a dustproof area into which the cooling air can be introduced from the outside of the housing via a dustproof filter is formed inside the housing, the optical element is accommodated in the dustproof area of the housing, and the air supply unit includes a first air supply unit configured to introduce the cooling air from the outside of the housing to the dustproof area via the dustproof filter, and a second air supply unit accommodated in the dustproof area and configured to supply the cooling air introduced to the dustproof area by the first air supply unit toward the optical element.