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    PRISM APPARATUS, AND CAMERA APPARATUS INCLUDING THE SAME
    11.
    发明申请
    PRISM APPARATUS, AND CAMERA APPARATUS INCLUDING THE SAME 审中-公开

    公开(公告)号：US20200057313A1

    公开(公告)日：2020-02-20

    申请号：US16220687

    申请日：2018-12-14

    Applicant: LG ELECTRONICS INC.

    Inventor： Dongryeol LEE ,  Jayong LEE ,  Hyungjoo KANG ,  Kwanhyun KIM

    IPC: G02B27/64 ,  G02B26/08 ,  G03B5/00 ,  G03B3/10 ,  H02K11/215 ,  H02K41/035 ,  H04N5/232

    Abstract: A prism apparatus, and a camera and an image display apparatus including the same are disclosed. The prism apparatus includes: a first prism configured to reflect input light toward a first reflected direction, a first actuator configured to change an angle of the first prism about a first rotation axis to change the first reflected direction based on a first control signal, a second prism configured to reflect the light reflected from the first prism toward a second reflected direction, and a second actuator configured to change an angle of the second prism about a second rotation axis to change the second reflected direction based on a second control signal.

    APPARATUS AND METHOD FOR CONTROLLING AUTO FOCUS OF CAMERA MODULE
    12.
    发明申请
    APPARATUS AND METHOD FOR CONTROLLING AUTO FOCUS OF CAMERA MODULE 有权

    公开(公告)号：US20170264814A1

    公开(公告)日：2017-09-14

    申请号：US15455040

    申请日：2017-03-09

    Applicant: LG ELECTRONICS INC.

    Inventor： Haejin PARK ,  Sungdu KWON ,  Youngman KWON ,  Jayong LEE ,  Taegil CHO ,  Salkmann JI ,  Samnyol HONG

    IPC: H04N5/232 ,  G02B7/09 ,  G02B27/64 ,  G02B7/36

    CPC classification number: H04N5/23212 ,  G02B7/08 ,  G02B7/09 ,  G02B7/28 ,  G02B7/36 ,  G02B7/365 ,  G02B27/646 ,  G05D3/14 ,  H02P7/025 ,  H02P29/64 ,  H02P2203/00 ,  H04N5/06 ,  H04N5/23248 ,  H04N5/23254

    Abstract: Disclosed are an apparatus and method for controlling auto focus of a camera module including a voice coil motor actuator. The present invention includes a fixed unit having a perforated hole formed therein, a magnet placed inside the fixed unit, a lens unit including at least one lens and configured to linearly move inside the perforated hole of the fixed unit, an Optical Image Stabilizer (OIS) coil placed between the fixed unit and the lens unit to correct destabilization of the lens unit, a moving coil placed on a surface of the lens unit, a fixed coil receiving from the moving coil, a variable current or a variable voltage according to a distance moved by the moving coil, an image signal processing unit processing an image signal sensed by the sensing unit, and a controller configured to provide a signal comprising first frequency signal and second frequency signal to the moving coil, wherein the fixed coil receiving the variable current or the variable voltage through the second frequency signal, calculate a focus position value based on the received variable current or the variable voltage according to a distance moved by the moving coil from the fixed coil and the image signal processed by the image signal processing unit, and control the lens unit to move by applying first frequency signal to the moving coil according to the calculated focus position value, wherein the controller is further configured to receive the second frequency signal only during a specific time slot in order for the second frequency signal to not include noise due to OIS signal and apply the OIS signal to the OIS coil during the rest of a time slot of the second frequency signal.

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