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:
Oct. 14, 1997
Filed:
Apr. 17, 1995
Hiroshi Wakabayashi, Yokohama, JP;
Yuji Katano, Kawasaki, JP;
Noriyasu Kotani, Tokyo, JP;
Noboru Akami, Yokahama, JP;
Nikon Corporation, Tokyo, JP;
Abstract
A camera including a mount portion onto which a lens barrel housing a lens is mounted as movable in a direction of an optical axis thereof, a moving mechanism for moving the lens barrel in the direction of the optical axis, a limiter for setting a limit of movement of the lens barrel moved by the moving mechanism while the lens barrel is mounted on the mount portion, and a limit remover for removing the limit of movement set by the limiter when the lens barrel is dismounted from the mount portion. The camera further includes a signal transmission apparatus in which the lens barrel is mounted as movable in the direction of the optical axis thereon on the camera body. The signal transmission apparatus includes a light emitting element located on either one of the lens barrel and the camera body, and a light receiving element located on the other one of the lens barrel and the camera body, for receiving light from the light emitting element. The light emitting element and the light receiving element perform signal transmission between a lens controller in the lens barrel and a camera controller in the camera body.