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. 20, 1993
Filed:
Jun. 21, 1991
Applicant:
Inventors:
Assignee:
Nikon Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
35419512 ;
Abstract
A lens barrel is provided with a detecting device for detecting whether a clutch device for effecting the AF mode/MF mode changeover of a focus adjusting mechanism is changed over completely to either mode. When the detecting device detects that the changeover is not complete, as due to the supply of electric power from the camera body being cut off, the clutch device is automatically brought to the change-over position of a selected mode in response to the next supply of electric power.