DRIVE DEVICE AND IMAGING DEVICE

Japanese Patent JP2022185492

A

SOLUTION: A drive device may comprise: a fixing member; a movable member movable with respect to the fixing member; a voice coil motor which moves the movable member with respect to the fixing member; a detection part for detecting a positional relation between the fixing member and the movable member; and a circuit for controlling the voice coil motor on the basis of the detection result of the detection part. The voice coil motor may comprise: a voice coil which is provided on one of the fixing member and the movable member; and a magnet which is provided on the other of the fixing member and the movable member so as to face the voice coil. The detection part may comprise, on one of the fixing member and the movable member, a first hall device and a second hall device which are provided separated from each other at an internal side of the voice coil, along a first direction being a movable direction of the movable member. The circuit may be configured to adjust the positional relation between the fixing member and the movable member, by controlling a current which is caused to flow into the voice coil, on the basis of outputs of the first and second hall devices.SELECTED DRAWING: Figure 2

HOSHINO TAKAYUKI
HONJO KENICHI

JP2021093217A

December 14, 2022

June 02, 2021

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SZ DJI TECHNOLOGY CO LTD

G03B5/00; G02B7/02; G03B15/00; G03B17/00; H04N5/225; H04N5/232

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