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:
Nov. 18, 1980
Filed:
Apr. 20, 1978
Applicant:
Inventors:
Minoru Toda, Machida, JP;
Susumu Osaka, Machida, JP;
Assignee:
RCA Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05D / ; G09F / ; G09F / ;
U.S. Cl.
CPC ...
350269 ; 40451 ; 310331 ; 310800 ; 340763 ; 354234 ;
Abstract
A light control device includes a bimorph element comprising two thin polyvinylidene fluoride films and a thin layer disposed therebetween to secure the films together. The bimorph element bends in accordance with an applied electric field to open or close an opening in a panel, thereby displaying a pattern, or to open or close a passageway of light, thereby performing a shutter operation.