| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical member controller, a lens barrel, and an imaging device, capable of reducing an electric power consumption while holding an optical member in a stop position, in constitution in which a position of the optical member is not fixed when stopping electrification, in case of driving the optical member by a voice coil motor. SOLUTION: Mountain climbing AF control is executed while carrying out wobbling of a 3-group lens in steps S2-S7, when starting AF control, and a signal indicating a sharpness of a subject image reaches the top of the mountain to be focused. A position of the 3-group lens 103 is stored therein in a step S9, and the electrification to the voice coil motor is stopped (S10). A positional change from the stop position of the 3-group lens 103 is determined in a step S15, and the holding electrification for the motor is restarted when a variation thereof gets to a prescribed value or more (S17, S18). COPYRIGHT: (C)2010,JPO&INPIT
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