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:
Sep. 03, 2002
Filed:
Aug. 16, 2000
Applicant:
Inventors:
Teruo Miyamoto, Tokyo, JP;
Hiroyuki Yahara, Tokyo, JP;
Mitsuhiro Kawaguchi, Tokyo, JP;
Motoo Takahashi, Tokyo, JP;
Tatsuro Hirose, Tokyo, JP;
Takaaki Uda, Tokyo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 2/118 ; G03B 2/116 ; G03B 2/114 ;
U.S. Cl.
CPC ...
G03B 2/118 ; G03B 2/116 ; G03B 2/114 ;
Abstract
A projecter having a lamp, a lamp box containing the lamp, an outlet fan for discharging air from the lamp box, an optical system member which receives a light beam from the lamp and outputs an image light, an optical system box containing the optical system member, and an inlet fan for blowing outside air into the optical system box. The projector also has a first ventilating duct that directs the outside air blown in by the inlet fan into the lamp box.