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:
Jul. 03, 2007
Filed:
Jul. 08, 2004
Akihito Yajima, Kanagawa, JP;
Hiroshi Nagai, Kanagawa, JP;
Masami Sato, Chiba, JP;
Yuji Kawasaki, Ibaraki, JP;
Daisuke Shirato, Chiba, JP;
Yoshihiko Okamura, Tokyo, JP;
Dai Yoneya, Tokyo, JP;
Takuji Ohkubo, Chiba, JP;
Akihito Yajima, Kanagawa, JP;
Hiroshi Nagai, Kanagawa, JP;
Masami Sato, Chiba, JP;
Yuji Kawasaki, Ibaraki, JP;
Daisuke Shirato, Chiba, JP;
Yoshihiko Okamura, Tokyo, JP;
Dai Yoneya, Tokyo, JP;
Takuji Ohkubo, Chiba, JP;
Sony Corporation, Tokyo, JP;
Abstract
In an LCD projector or other projection type display apparatus which uses a lamp such as a xenon lamp for a light source, the lamp is cooled efficiently without increasing ambient noises or without causing the whole apparatus to become large-sized, and at the same time the lifetime and the reliability of a fan which cools the lamp is made improved. When fansandwhich are disposed on a front side of the lamp mounted with a heat sinkrotate, external air of ordinary temperature is taken inlet and guided into ductsandso as to be blown onto the front face of the lamp by means of the fansand. Then, high temperature air which was warmed by being blown onto the lamp is exhausted from an outlet to the outside.