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. 17, 1991
Filed:
Jan. 09, 1990
Applicant:
Inventor:
Bryan E Loucks, Los Altos Hills, CA (US);
Assignee:
Greyhawk Systems, Inc., Milpitas, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
359495 ;
Abstract
An optical system is disclosed which combines a collimating lens with a half wave plate, a polarizing beam splitter, and imaging optics to create a polarized image of a non-polarized light source. This optical system has significant benefits of energy efficiency and brightness.