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:
Jul. 20, 1982
Filed:
Jun. 09, 1980
Applicant:
Inventor:
John L Henkes, Latham, NY (US);
Assignee:
General Electric Company, Portsmouth, VA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
350128 ; 350167 ;
Abstract
A rear projection screen having a patterned lenticular prismatic structure formed on the front side for providing an asymmetrical viewing field of a substantially wider viewing angle in the horizontal direction than in the vertical direction, throughout which are achieved superior optical properties particularly in terms of light uniformity and light efficiency. A surface pattern in the form of tiny lenslets formed through a reliable etch process contributes a high gain factor diffusion to the projected light which coacts with optical characteristics of the prism configuration.