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:
Oct. 12, 1993
Filed:
Sep. 30, 1991
Applicant:
Inventors:
Thomas A Mepham, Hiawatha, IA (US);
Roger D Eller, Cedar Rapids, IA (US);
Gerald L Vick, Mt. Vernon, IA (US);
Assignee:
Rockwell International Corporation, Seal Beach, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21V / ;
U.S. Cl.
CPC ...
362216 ; 362347 ; 362297 ; 362241 ; 359 49 ;
Abstract
A luminaire including one or more fluorescent tubes and associated reflectors for use in backlighting a projection type liquid crystal display matrix. The reflectors have special arcuate shapes designed to forwardly project light to the display matrix and also to direct diffuse light outward from behind the fluorescent tubes so that all of the light generated by the tubes can be efficiently projected for use in illuminating the display matrix.