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. 24, 2002
Filed:
Aug. 29, 2001
Applicant:
Inventors:
Assignee:
Benq Corporation, Taoyuan, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 2/118 ; G03B 2/122 ;
U.S. Cl.
CPC ...
G03B 2/118 ; G03B 2/122 ;
Abstract
A projector has a housing, a light source positioned within the housing to generate light, a fan positioned beside the light source to dissipate heat generated by the light source, and an air vent positioned beside the fan to guide heat out of the housing. The air vent reduces turbulence, and thus noise, by the addition of at least one guiding rib. The guiding rib causes heat to flow fluently through the air vent and out of the housing.