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:
May. 31, 1983
Filed:
Jul. 03, 1980
Donald J Channin, Princeton, NJ (US);
RCA Corporation, New York, NY (US);
Abstract
A liquid crystal lens display system comprises a liquid crystal lens, display elements, a polarizer and a light source. The liquid crystal lens comprises a dielectrically anisotropic liquid crystal material covering two electrodes each having a plurality of spaced, parallel, interleaved fingers. The display elements comprise one or more elements to which are affixed alphanumeric or analog information and which are optically distinguishable. The angle of refraction of light passing through the liquid crystal lens is electrically alterable by applying a voltage source to the lens' electrodes. Portions of one of the display elements viewed through an activated liquid crystal lens are changed since light from these portions are no longer within the field of view of the observer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile