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:
Mar. 19, 1991
Filed:
Dec. 05, 1989
Yasuyuki Watanabe, Osaka, JP;
Koichiro Iwao, Osaka, JP;
Akira Nikaido, Saitama, JP;
Yoshio Wada, Saitama, JP;
Nippon Sheet Glass Co., Ltd., Tokyo, JP;
Citizen Watch Co., Ltd., Tokyo, JP;
Abstract
An optical switch includes at least one optical fiber exit terminal disposed in a plane, at least first and second optical fiber entrance terminals disposed in the plane, and a movable reflector disposed in the plane and angularly movable about a point in the plane for reflecting and/or refracting a light ray from the optical fiber exit terminal selectively into one of the first and second optical fiber entrance terminals for thereby optically coupling the optical fiber exit terminal and said one optical fiber entrance terminal. When the optical fiber exit terminal and the optical fiber entrance terminal are optically coupled to each other, the movable reflector is held against a stopper while it is being subjected to a certain torque, so that the movable reflector is stably stopped.