| 摘要 |
PROBLEM TO BE SOLVED: To provide a barrier opening/closing clutch mechanism for switching and connecting output from a motor to a barrier opening/closing mechanism covering over the front of a lens in order to use a mechanism for performing winding and rewinding by one motor. SOLUTION: In a state where a power source is turned off, the barrier opening/closing mechanism is switched and connected to the mechanism for performing winding and rewinding. When the power source of a focus dial 5 is turned on, the barrier opening/closing mechanism is actuated to open the barrier 2 according to output by the normal rotation of a winding motor. After the winding motor is stopped, a zoom motor is actuated and the lens starts to project to a photographing feasible position from a collapsible position. A 1st planet plate is released from a fixed position and switched to winding/ rewinding by the time when a wide end position is detected. When the power source is turned off, the lens is collapsed and the 1st planet plate is switched to the fixed position. Then, the barrier opening/closing mechanism is actuated to close the barrier.
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