| 摘要 |
PURPOSE:To move a movable lens to a draw-out position or collapsible barrel position without slanting its optical axis by moving one operating member by more than the movement length of a lens and allowing the operating member to operate so that is overruns at both end positions of the lens. CONSTITUTION:When a driving pin 9a moves forth in the direction of the optical axis through the rotation of a motor, an interlocking shaft 6a is rotated clockwise through a lever 6 to drive a pin 2c forward in the direction of the optical axis through the elastic operation of a spring 7a while driving a pin 2b forward in the same direction through the elastic operation of a spring 8a, so the movable lens unit 2 is drawn out in the direction of the optical axis. The pins 2b and 2c operates until the movable lens unit 2 stops when the front surface of its projection piece 2a abuts on the rear end surface of the mount 1a of a front plate 1, and the stroke of a driving pin 9a which exceeds it, i.e. overrun of the interlocking shaft 6a is absorbed by the elastic deformation of the springs 7a and 7b. |
