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:
Mar. 04, 2003
Filed:
Mar. 28, 2001
Applicant:
Inventor:
Gary D. Basey, Portland, OR (US);
Assignee:
InFocus Corporation, Wilsonville, OR (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21V 2/900 ;
U.S. Cl.
CPC ...
F21V 2/900 ;
Abstract
A lamp collar for use in a lamp assembly of an image projector includes vanes that form an air inlet to allow air to flow into and through the lamp assembly to cool the lamp. The vanes direct the air to flow across the lamp to cool it and to circulate within the lamp assembly before exiting through an exhaust opening. The directed air flow serves to cool the lamp and to maintain a substantially constant lamp temperature.