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. 31, 1976
Filed:
Dec. 06, 1974
Applicant:
Inventors:
Hayao Akaba, Akishima, JA;
Akira Ikeda, Fussa, JA;
Sho Michihiro, Sagamihara, JA;
Masayoshi Lee, Kawasaki, JA;
Assignee:
Kabushiki Kaisha Hoya Lens, Tokyo, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05G / ;
U.S. Cl.
CPC ...
318626 ; 318601 ; 318569 ; 318570 ;
Abstract
A servo system to permit the lens finishing for example, corresponding to a registered pattern and permit such finishing at desired pressure, etc. for the conveniences of the easy and effective grinding and finishing, in a manner that the detectors supply to the lower and upper limit voltage comparators the detectors outputs, which are then supplied to the logic circuits as well as the outputs for the servo-driving and the outputs from flip-flops, so that the servo motor rotates in normal and/or reverse directions.