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:
Jan. 23, 2018
Filed:
Jan. 28, 2016
Applicant:
Fanuc Corporation, Minamitsuru-gun, Yamanashi, JP;
Inventors:
Miaomiao Wang, Yamanashi, JP;
Nobuyuki Ootake, Yamanashi, JP;
Assignee:
FANUC CORPORATION, Yamanashi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D 5/34 (2006.01); G01D 5/347 (2006.01);
U.S. Cl.
CPC ...
G01D 5/3473 (2013.01); G01D 5/34715 (2013.01);
Abstract
In an optical encoder which includes a rotary plate formed with a plurality of slit arrays and a plurality of light receiving parts corresponding to the slit arrays, at least one of the outer edge of a light receiving part located on the outer side of the optical axis X of light emitted from a light emitting part and the inner edge of the light receiving part located on the inner side of the optical axis X is positioned at a greater distance from the optical axis than the edge of the slit array corresponding to the light receiving part.