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:
Jun. 03, 1986
Filed:
Nov. 02, 1984
Yoshimitsu Nakamura, Settsu, JP;
Kazuhisa Takahashi, Shijonawate, JP;
Kazuhiro Mishina, Hirakata, JP;
Matsushita Electric Works, Ltd., Osaka, JP;
Abstract
An optical rotary encoder comprises a body having a bottom disc portion having a first axial bearing and a cylindrical portion, an open end of which is closed by an end cap having a second axial bearing. A rotary detection shaft passes axially through the disc portion and end cap and is carried by the first and second bearings. A pair of opposing light emitting and receiving means disposed around the shaft between the bearings, so that a light beam emitted by the emitting means can be received by the receiving means through a rotary slit wheel on the shaft and a stationary slit ring plate of the body.