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:
Feb. 10, 1981
Filed:
Mar. 20, 1978
Applicant:
Inventor:
Motoi Iyeta, Hamamatsu, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01D / ; H02K / ;
U.S. Cl.
CPC ...
2502 / ; 2502 / ; 310111 ;
Abstract
In the construction of a photoelectric type rotation angle detector for a rotatable or turnable object including a photoelectric transducer, an optical interceptor and a comparator circuit, a cylindrical light interceptive portion extends parallel to the main shaft axis of the interceptor, the optical trace of the transducer extends across the light interceptive portion, and angular deviation of the object from a standard angular position induces corresponding relative rotation between the transducer and the interceptor for generation of a corresponding output from the comparator circuit.