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:
May. 14, 1991
Filed:
Sep. 11, 1990
Kazuo Yamaguchi, Tokyo, JP;
Yoshi Kurosawa, Tokyo, JP;
Seiichi Sato, Tokyo, JP;
Atsushi Ueda, Hyogo, JP;
Masami Matsumura, Hyogo, JP;
Optec D.D. Melco Laboratory Co., Ltd., Higashikurume, JP;
Optec Dai-Ichi Denko Co., Ltd., Higashikurume, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A photointerruptor for use in a light transmission type rotary encoder comprising a photointerruptor main body having a plurality pair of light emitting and light receiving optical fibers resin-molded therein, each pair of the optical fibers being disposed such that their end faces are opposed on both sides of each code pattern formed circumferentially on a pulse scale, the light emitting optical fibers joined by way of an optical branching device into a light input end and the light receiving optical fibers being extended in parallel with each other through the photointerruptor and, an adaptor integrally formed to the photointerruptor main body and through which the light input end of the light emitting optical fibers and the light emitting ends of the light receiving optical fibers are extended and arranged such that they are collectively connected with core wires of a multi-cored transmission optical fiber cable by way of a light connector respectively.