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:
Jul. 27, 1993
Filed:
Aug. 29, 1991
Applicant:
Inventors:
Hiroshi Kawamura, Tokyo, JP;
Kunio Nakazato, Kanagawa, JP;
Assignee:
Sony Corporation, , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
359694 ; 359696 ; 359704 ;
Abstract
A lens barrel of a camera includes a driving power source, a plurality of lenses mounted in the barrel, and a plurality of reference shafts extending parallel to an optical axis. At least one of the reference shafts is provided with a threaded portion and used as a rotating shaft of the driving power source. A recess and a protrusion are also provided for preventing deflection of a body of the driving power source, so that the lens moves to and fro along the threaded portion upon activation of the driving power source.