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:
Sep. 04, 1984
Filed:
May. 05, 1982
Applicant:
Inventor:
Robert H Anderson, Long Beach, CA (US);
Assignee:
Litton Systems, Inc., Beverly Hills, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
340783 ; 340763 ; 350388 ; 350392 ;
Abstract
A magneto-optic display diffusion lighted by incident light. A conventional magneto-optic display comprising a polarization analyzer sheet, a magneto-optic chip, and a polarizer sheet are mounted with the polarizer sheet on the front surface of a transparent slab having a diffusion surface on its back surface. The edges of the slab are adapted to direct incident light against the diffusion surface and cause diffused light to pass out through the magneto-optic display to illuminate it from behind by diffused light. In one embodiment, the edge is a reflective edge. In another embodiment, the edge is a refractive edge.