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:
Dec. 23, 1997
Filed:
Nov. 20, 1996
Koushi Yoshibe, Chiba, JP;
Hideo Kanno, Chiba, JP;
Nikon Corporation, Tokyo, JP;
Abstract
A lens barrel has a manual focusing ring which is rotatable about the optical axis so as to attain a manual focusing operation, a focusing rotary cylinder which defines the position, in the optical axis direction, of a focusing optical system, and is rotatable about the optical axis, an auto-focusing power transmission member for directly transmitting the moving force from an auto-focusing power source to the focusing rotary cylinder, a free rotation cylinder which is arranged on the focusing rotary cylinder, and is rotatable about the optical axis, a manual focusing power transmission member for transmitting the moving force from the manual focusing ring, a power relaying member which constitutes a differential mechanism together with the manual focusing power transmission member and the free rotation cylinder, and applies the rotation driving force to the focusing rotary cylinder by receiving the moving force transmitted from the manual focusing power transmission member, and a locking member for locking the free rotation cylinder in the manual focusing operation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile