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. 22, 1983
Filed:
Feb. 11, 1982
Minoru Toda, Machida, JP;
Susumu Osaka, Machida, JP;
RCA Corporation, New York, NY (US);
Abstract
A photoelectric circuit arrangement includes one direct current voltage source and first and second photoconductive networks, each comprising at least one resistance and one photoconductive cell. An output voltage generated between two output terminals of the first and second networks is directly applied to a bimorph element used to close or open a blind. The strong light causes the networks to be in low resistive state so as to produce the output voltage of one polarity to bend the bimorph in one direction and thereby to tend to close the blind, while the weak light causes the networks to be in high resistive state so as to produce the output voltage of the other polarity to bend the bimorph in the opposite direction and thereby to tend to open the blind. The first and second photoconductive networks can be integrated in one body.