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:
Aug. 01, 1989
Filed:
Aug. 26, 1982
Applicant:
Inventor:
Antonius J Nicia, Eindhoven, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ; G02F / ;
U.S. Cl.
CPC ...
350 9620 ; 350 9613 ; 350 9614 ; 350 9616 ; 350 9618 ; 350334 ; 350338 ; 350335 ; 3503 / ; 350370 ; 350356 ;
Abstract
The electro-optical switch in accordance with the invention comprises one or more nematic crystals (7) for the deflection of polarized light. In order to enable deflection of a light beam in two perpendicular directions by means of two electrically controllable crystals, the beam (4) of unpolarized light is converted into a beam (6) of polarized light in a low-loss manner.
Quick Actions:
Nicia, Antonius. (1989). Optical fiber switch using nematic crystal to switch unpolarized optical (U.S. Patent No. 4852962). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4852962
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