| 摘要 |
PURPOSE:To move the titled device from a random position, and also to reduce the noise and vibration when a lens stops by decelerating and stopping a main lens at a position of a prescribed interval from a displacement completing position, also engaging a clock plate and a positioning member to each other, and executing the positioning. CONSTITUTION:In case when once of a variable power has been selected, a tongue of a clock plate 12 is detected successively by decelerating sensors S9- S20, following a movement of a main lens l0 and an output is inputted to a multiplexer. In this case, a microcomputer selects and reads an input of the sensers S10, S18 and S14 corresponding to once of the variable power in inputs from the sensors S9-S20, and when the sensor S10 detects the tongue, a decelerating instruction is outputted to a main lens driving motor M0. Subsequently, the motor M0 is decelerated correctly, a positioning member K2 is operated and a roller 13 contacts by pressing to the lower edge of the clock plate 12. Also, a stop intruction is outputted to the motor M0 and it stops. |
