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:
Oct. 21, 1980
Filed:
Mar. 24, 1978
Applicant:
Inventors:
Luigi d'Auria, Paris, FR;
Jean-Pierre Huignard, Paris, FR;
Assignee:
Thomson-CSF, Paris, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ; G02B / ;
U.S. Cl.
CPC ...
350150 ; 250578 ; 350169 ;
Abstract
An electro-optical switching apparatus which comprises at least an input photo-emitter circuit which lights up a switching matrix comprising a plurality of switching elements selected with two pluralities of crossed connections. Under the control of switching signals one of these elements turns on and allows the light to pass through. An image of this switching matrix is formed by a lens onto a matrix of photo-receiver circuits and the light transmitted through the turned on switching element induces in one of said photo-receiver circuits a transmitted switched signal.