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. 30, 1983
Filed:
Feb. 06, 1981
Sadao Mizokawa, Hitachi, JP;
Yoshiji Ito, Hitachi, JP;
Yasuo Hosoda, Tokaimura, JP;
Hiroshi Kaita, Hitachi, JP;
Tadaaki Okada, Hitachi, JP;
Hiroaki Ohnishi, Tokaimura, JP;
Seiichi Yasumoto, Hitachi, JP;
Hitoshi Fushimi, Hitachi, JP;
Jushi Ide, Mito, JP;
Hiroshi Kuwahara, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
Disclosed is an optical switch of the rotary-type in which a pair of opposing optical transmission path mounting members are disposed on the same axis. A plurality of junction faces of optical transmission paths disposed on the respective opposing plane portions of the mounting members along phantom circles which are opposite to each other and concentric with the pair of mounting members respectively with respect to the axis so that the junction faces on the respective plane portions are capable of being correspondingly opposite to each other. When the pair of the mounting members are relatively rotated about the axis, the facing mates of the opposing junction faces of the optical transmission paths are changed over to switch the optical transmission paths. In the case where an optical path relay member is interposed between the pair of the optical transmission path mounting members, the optical transmission paths can be switched by only the rotation of the optical path relay member.