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. 21, 1991
Filed:
Sep. 30, 1988
Applicant:
Inventor:
Hiroshi Akitake, Hachioji, JP;
Assignee:
Olympus Optical Company Ltd., , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350429 ; 35419513 ;
Abstract
A zoom mechanism for zoom lenses drives a focusing lens group in a linear manner and lens groups other than the focusing lens group in either a non-linear or a linear manner, during a zooming operation and, after the zooming operation, drives the focusing lens group for the focusing operation to correct a difference caused in the zooming operation.
Akitake, Hiroshi. (1991). Zoom mechanism for zoom lenses (U.S. Patent No. 5016993). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5016993
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile