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:
Apr. 27, 1999
Filed:
Apr. 09, 1998
Koshi Yoshibe, Kawasaki, JP;
Isao Soshi, Tokyo, JP;
Nikon Corporation, Tokyo, JP;
Abstract
A lens barrel comprises a focusing optical system for moving in the direction of the optical axis to perform a focusing operation, an ultrasonic motor used for the automatic focus control, containing a stator and a rotor, and disposed around the optical axis, a motion transformation/transmission mechanism for moving the focusing optical system in the direction of the optical axis on the basis of a rotation of the rotor, a manual operation member to be rotated manually, and a motor holding device for holding the motor to be rotated by a rotation of the manual operation member so as to rotate the rotor, wherein said motor is held on the motor holding device to have the stator and the rotor provided from the light incident side toward the lens barrel in the named order.