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:
Nov. 14, 1995
Filed:
Jul. 06, 1994
Applicant:
Inventors:
John F Forkner, South Laguna, CA (US);
Ronald F Rykowski, Woodinville, WA (US);
Stephen S Wilson, Lake Elsinore, CA (US);
Assignee:
Prolux Corporation, San Juan Capistrano, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ; G03B / ; G03B / ;
U.S. Cl.
CPC ...
359 40 ; 359 48 ; 359 49 ; 353 31 ; 353 38 ;
Abstract
A projection system comprising a liquid crystal light valve having a wider acceptance angle for incident light in a first direction than in a second direction transverse to the first direction and an illumination system. The illumination system provides light to the liquid crystal light valve at a greater beam spread angle in the first direction than in the second direction. The system also includes projection optics for receiving light from the liquid crystal light valve and projecting such light toward a projection surface.