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:
Jan. 04, 2005
Filed:
Nov. 22, 2002
Applicants:
Hung Chang, Taipei, TW;
Li-kuan Wong, Keelung, TW;
Inventors:
Hung Chang, Taipei, TW;
Li-Kuan Wong, Keelung, TW;
Assignee:
Benq Corporation, Taoyuan, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 2900 ; F21V 800 ;
U.S. Cl.
CPC ...
Abstract
The present invention provides a heat-sinking apparatus for a light pipe. The light pipe is disposed on an optical engine of a projector and optically couples with a light source. The heat-sinking apparatus includes a cover made of a heat conductive material and a fan. The cover covers the light pipe and uniformly distributes thermal energy generated by the light source over the light pipe. The fan dissipates the thermal energy distributed over the light pipe.