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. 23, 2003
Filed:
Sep. 09, 2002
Applicant:
Inventor:
Guolin Peng, Cedar Rapids, IA (US);
Assignee:
Rockwell Collins, Inc., Cedar Rapids, IA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 2/126 ; G03B 2/114 ; G03B 2/120 ; G02F 1/1335 ; H04N 9/31 ;
U.S. Cl.
CPC ...
G03B 2/126 ; G03B 2/114 ; G03B 2/120 ; G02F 1/1335 ; H04N 9/31 ;
Abstract
A projection display has a display screen for displaying images formed by image engines illuminated by a high-reliability illumination source. The illumination source contains lamps for illumination of the image engines. Optical components conduct the light from the lamps to the image engines such that when a lamp fails illumination is maintained on the display screen by varying the power to the remaining lamps. A lamp power controller senses failure of a lamp and varies the power to the remaining lamps to compensate for the lamp failure.