Photographing lens focusing device

Abstract

A focusing device in a camera comprises a lens barrel having a lens system, the lens barrel together with the lens system being moved along the optical axis to focus the lens system on an object locted in the range of ordinary photographing distances and on an object located in the range of closest focusing distances shorter than the ordinary photographing distances, a detector for detecting a distance to an object, to provide an output signal according to the distance thus detected, a main drive system for moving the lens barrel in response to the output signal provided by the detector, to focus the lens system on the object located in the range of ordinary photographing distances, and an auxiliary drive system with a member operated by the operator. The auxiliary drive system moving the lens barrel independently of the main drive system, to focus the lens system on the object located in the range of closest focusing distances.

Dependencies are inferred from the claim text.