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:
Jan. 23, 1996
Filed:
May. 23, 1995
Applicant:
Inventors:
James L Fergason, Atherton, CA (US);
Arthur L Berman, San Jose, CA (US);
Stephen D Jacobs, Pittsford, NY (US);
Assignee:
Optical Shields, Inc., Menlo Park, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ; G02F / ;
U.S. Cl.
CPC ...
359 74 ; 359 37 ;
Abstract
A polarizer including liquid crystal material and a surface or surfaces for cooperating with the liquid crystal material to control polarization of light which is incident in a direction normal to the polarizer by at least one of refraction and total internal reflection of one polarization component of the light while transmitting the other polarization component substantially in the direction without refraction or total internal reflection, the surface or surfaces including plural grooves in cooperative relationship with the liquid crystal material.