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    Displacement sensor and camera module having the same
    11.
    发明授权
    Displacement sensor and camera module having the same 有权

    公开(公告)号：US10142527B2

    公开(公告)日：2018-11-27

    申请号：US15442389

    申请日：2017-02-24

    Applicant: LG ELECTRONICS INC.

    Inventor： Hyungjoo Kang ,  Sungdu Kwon ,  Salkmann Ji ,  Samnyol Hong

    IPC: H04N5/225 ,  G01D5/20 ,  G02B7/08 ,  G02B13/00 ,  G02B27/64

    Abstract: A displacement sensor comprises a first frame; a second frame; a first coil wherein a first voltage formed at the first frame is applied; a second coil formed at the first frame, wherein a current of a second voltage flows if the first voltage is applied to the first coil; a conductor coupled to the second frame; and a detector for calculating a relative position between the first frame and the second frame by monitoring the second voltage. Since two coils are embodied in one frame, the number of process times can be reduced and space utility can be enhanced.

    Refrigerator having a camera and method of operating the same based on position of a door
    14.
    发明授权
    Refrigerator having a camera and method of operating the same based on position of a door 有权

    公开(公告)号：US09860491B2

    公开(公告)日：2018-01-02

    申请号：US14255174

    申请日：2014-04-17

    Applicant: LG ELECTRONICS INC.

    Inventor： Sehwan Park ,  Samnyol Hong ,  Sungdu Kwon

    IPC: H04N7/18 ,  F25D29/00

    CPC classification number: H04N7/183 ,  F25D29/00 ,  F25D2400/361 ,  F25D2500/06 ,  F25D2700/02

    Abstract: A refrigerator may include a detection device that detects at least one of a position or movement of a door of the refrigerator, a camera to capture an image of an area inside the refrigerator, and a controller to control the camera to capture the image based on the detected position or movement of the door. A start of a door opening operation and a door closing operation may be detected based on the detected position or movement of the door. When the door opening operation is detected, the camera is controlled to operate in a standby mode, and when the door closing operation is detected, an angle of the door is compared with a reference angle. When the angle of the door is less than the reference angle, the camera is controlled to operate in a photographing mode to capture the image of the area inside refrigerator.

    Camera module and method for auto focus thereof
    18.
    发明授权
    Camera module and method for auto focus thereof 有权

    公开(公告)号：US11002939B2

    公开(公告)日：2021-05-11

    申请号：US16300038

    申请日：2016-06-30

    Applicant: LG ELECTRONICS INC.

    Inventor： Youngman Kwon ,  Hyungjoo Kang ,  Sungdu Kwon ,  Jayong Lee ,  Haejin Park ,  Samnyol Hong

    IPC: G02B7/09 ,  G03B3/10 ,  G02B7/105 ,  G01R15/18 ,  H02K11/225 ,  H02P7/025 ,  G01D5/20 ,  G03B13/36 ,  H02K41/035

    Abstract: The present invention relates to an apparatus and a method for controlling auto focus of a camera module including a voice coil motor actuator. The camera module includes a sensing unit configured to sense a movement of the lens unit and a controller configured to control the movement of the lens unit based on a sensing signal sensed by the sensing unit. If an initial operation command is received, the controller moves the lens unit to an end point of a maximum movement range. If the lens unit is positioned at the end point of the maximum movement range, the controller compares the sensing signal sensed by the sensing unit with a predetermined reference signal to calculate a compensation value for an error. If a focus operation command is received, the controller can move the lens unit to a focus position based on the calculated compensation value and compensate for the focus position of the lens unit.

    Dual camera module and method for controlling the same
    19.
    发明授权
    Dual camera module and method for controlling the same 有权

    公开(公告)号：US10027895B2

    公开(公告)日：2018-07-17

    申请号：US15585327

    申请日：2017-05-03

    Applicant: LG ELECTRONICS INC.

    Inventor： Hyungjoo Kang ,  Sungdu Kwon ,  Youngman Kwon ,  Samnyol Hong ,  Jayong Lee

    IPC: H04N5/232 ,  G02B7/08 ,  G02B7/28 ,  G02B27/64 ,  G03B13/36 ,  H04N5/225 ,  H04N5/247 ,  H04M1/02

    Abstract: A dual camera module that includes a voice coil motor actuator and a method for controlling the same are disclosed. The dual camera module comprises a first camera including a first lens module; a second camera including a second lens module, arranged to adjoin the first camera; and a controller for controlling the first camera and the second camera, wherein the controller identifies whether the first camera includes a first sensing module for sensing movement of the first lens module if a camera execution command is received, identifies whether the second camera includes a second sensing module for sensing movement of the second lens module if the first camera includes the first sensing module, identifies whether the first sensing module of the first camera and the second sensing module of the second camera have the same type as each other if the second camera includes the second sensing module, and controls the first camera and the second camera at different time zones if the first sensing module and the second sensing module have the same types as each other.

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