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:
Jun. 26, 1984
Filed:
Jul. 16, 1982
Nobuo Okabe, Tokyo, JP;
Nippon Kogaku K. K., Tokyo, JP;
Abstract
A focus adjusting device of a camera has moving means for moving a phototaking lens in the direction of the optical axis thereof, a motor producing a revolution output, a manually operated ring provided on the outer periphery of a lens barrel and rotatable circumferentially of the lens barrel, mode selecting means for selecting one of a manual mode in which the phototaking lens is driven by the manually operated ring and an automatic mode in which the phototaking lens is driven by the motor, and clutch means for coupling the moving means and the manually operated ring together when the manual mode has been selected by the mode selecting means and for cutting off the coupling between the moving means and the manually operated ring when the automatic mode has been selected by the mode selecting means. The device further has limit means for blocking movement of the moving means when the phototaking lens has come to an infinity in-focus position and when the phototaking lens has come to a very short distance in-focus position. The clutch means produces slip between the manually operated ring and the moving means when the manually operated ring is rotated by a great torque, thereby permitting rotation of only the manually operated ring.