CAMERA MODULE, ACTUATOR, AND PORTABLE ELECTRONIC DEVICE

    公开(公告)号:US20200296287A1

    公开(公告)日:2020-09-17

    申请号:US16508362

    申请日:2019-07-11

    Abstract: An actuator of a camera module includes a detected portion disposed on a lens barrel, and a position detector including a first sensing coil and a second sensing coil, disposed to face the detected portion, and a reference coil disposed outside of a region facing the detected portion, wherein the position detector detects a position of the detected portion in accordance with calculation results of inductances of the first sensing coil and the second sensing coil, and removes noise components by applying inductance of the reference coil to the calculation results of inductances of the first sensing coil and the second sensing coil.

    ACTUATOR FOR A CAMERA MODULE
    5.
    发明申请

    公开(公告)号:US20190162930A1

    公开(公告)日:2019-05-30

    申请号:US16001521

    申请日:2018-06-06

    Abstract: An actuator includes an oscillating unit including two or more oscillation circuits each configured to output an oscillation signal including a frequency, which is changed in response to movement of a detection target, a frequency down-converting unit configured to down-convert frequencies of two or more oscillation signals respectively output from the two or more oscillation circuits, and a determining unit configured to calculate a position of the detection target in response to two or more down-converted oscillation signals output from the frequency down-converting unit.

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