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    Tri-axis close loop feedback controlling module for electromagnetic lens driving device
    32.
    发明授权
    Tri-axis close loop feedback controlling module for electromagnetic lens driving device 有权

    公开(公告)号：US11256065B2

    公开(公告)日：2022-02-22

    申请号：US16196376

    申请日：2018-11-20

    Applicant: TDK Taiwan Corp.

    Inventor： Shu-Shan Chen ,  Chao-Chang Hu ,  Wen-Chang Lin

    IPC: G02B27/64 ,  G02B7/02 ,  G02B13/00 ,  G02B7/09 ,  H04N5/232 ,  G02B7/08

    Abstract: The tri-axis close-loop feedback controlling module for electromagnetic lens driving device includes a 6-pin Hall element. Two pins of the Hall element are coupled to an auto-focus module for providing a current to drive the auto-focus module to conduct auto-focusing operations along the Z-axis; while other four pins of the Hall element are coupled to a control unit. The control unit detects the X-Y axial positions of the auto-focus module relative to an OIS module and generates a control signal which is then sent to the Hall element. Therefore, the Hall element not only can provide its own feedback controlling function according to the Z-axial position of lens, but also can drive the auto-focus module based on the control signal corresponding to the X-Y axial positions of the auto-focus module, so as to achieve the goal of tri-axis close-loop feedback controlling for the electromagnetic lens driving device.

    Optical device
    33.
    发明授权
    Optical device 有权

    公开(公告)号：US10656431B2

    公开(公告)日：2020-05-19

    申请号：US15968493

    申请日：2018-05-01

    Applicant: TDK Taiwan Corp.

    Inventor： Chao-Chang Hu ,  Shu-Shan Chen ,  Chen-Hsien Fan ,  Liang-Ting Ho

    IPC: G02B26/08 ,  G02B27/64 ,  G02B7/09 ,  H02K41/035

    Abstract: An optical device includes a main base, a rotation mechanism, a carrying base, and an optical element. The rotation mechanism is connected to the main base. The carrying base is connected to the rotation mechanism. The optical element is disposed on the carrying base, and configured to change the transmission direction of an incident light. By changing the length of a bias wire of the rotation mechanism, the carrying base is rotated relative to the main base about a rotation axis.

    Lens driving apparatus with closed-loop anti-shake structure
    34.
    发明授权
    Lens driving apparatus with closed-loop anti-shake structure 有权

    公开(公告)号：US10509234B2

    公开(公告)日：2019-12-17

    申请号：US15855130

    申请日：2017-12-27

    Applicant: TDK TAIWAN CORP.

    Inventor： Chao-Chang Hu ,  Shu-Shan Chen ,  Cheng-Kai Yu ,  Bing-Ru Song

    IPC: G02B27/64 ,  G03B5/02 ,  G02B7/10 ,  H04N5/232 ,  G03B3/10

    Abstract: A lens driving apparatus with a closed-loop anti-shake structure, including: a lens holder including a coil; a frame including a plurality of magnets and receiving the lens holder; a driving circuit board disposed under the frame; a plurality of first set of elastic bodies configured such that the lens holder remains movable in a direction of a first axis with respect to the frame; a plurality of second set of elastic bodies configured such that the frame remains movable in a direction perpendicular to the first axis with respect to the driving circuit board; and a first optical module and a first optical reference respectively disposed at the driving circuit board and the lens holder, the first optical module sensing a relative movement of the first optical reference so as to sense a movement of the lens holder in the direction of the first axis.

    Lens driving mechanism
    35.
    发明授权
    Lens driving mechanism 有权

    公开(公告)号：US10466437B2

    公开(公告)日：2019-11-05

    申请号：US15639793

    申请日：2017-06-30

    Applicant: TDK TAIWAN CORP.

    Inventor： Chao-Chang Hu ,  Bing-Ru Song ,  Chih-Wei Weng ,  Shu-Shan Chen

    IPC: G02B27/64 ,  G02B7/10 ,  G02B7/09 ,  G02B7/02 ,  G02B7/08

    Abstract: A lens driving mechanism is provided for driving a first lens and a second lens to move, wherein light enters the first and second lenses along a light incident direction. The lens driving mechanism includes a first base movably connected to the first lens, a first driving assembly, and a second driving assembly. The first driving assembly has a first magnet and a first coil corresponding thereto for moving the first lens. The second driving assembly has a second magnet and a second coil corresponding thereto for moving the second lens. The first magnet is adjacent to the second magnet, and the polar direction of the first magnet is parallel to the light incident direction.

    Tri-axis close loop feedback controlling module for electromagnetic lens driving device
    36.
    发明授权
    Tri-axis close loop feedback controlling module for electromagnetic lens driving device 有权

    公开(公告)号：US10168506B2

    公开(公告)日：2019-01-01

    申请号：US15226043

    申请日：2016-08-02

    Applicant: TDK Taiwan Corp.

    Inventor： Shu-Shan Chen ,  Chao-Chang Hu ,  Wen-Chang Lin

    IPC: G02B13/00 ,  G02B27/64 ,  G02B7/09 ,  H04N5/232 ,  G02B7/08

    Abstract: The tri-axis close-loop feedback controlling module for electromagnetic lens driving device includes a 6-pin Hall element. Two pins of the Hall element are coupled to an auto-focus module for providing a current to drive the auto-focus module to conduct auto-focusing operations along the Z-axis; while other four pins of the Hall element are coupled to a control unit. The control unit detects the X-Y axial positions of the auto-focus module relative to an OIS module and generates a control signal which is then sent to the Hall element. Therefore, the Hall element not only can provide its own feedback controlling function according to the Z-axial position of lens, but also can drive the auto-focus module based on the control signal corresponding to the X-Y axial positions of the auto-focus module, so as to achieve the goal of tri-axis close-loop feedback controlling for the electromagnetic lens driving device.

    Camera system
    37.
    发明授权
    Camera system 有权

    公开(公告)号：US10133038B2

    公开(公告)日：2018-11-20

    申请号：US15589198

    申请日：2017-05-08

    Applicant: TDK TAIWAN CORP.

    Inventor： Chao-Chang Hu ,  Chen-Hsien Fan ,  Cheng-Kai Yu ,  Chih-Wei Weng ,  Shu-Shan Chen

    IPC: H04N5/225 ,  G02B13/02 ,  G02B7/09 ,  H02K11/21 ,  H02K41/035 ,  H04N5/232 ,  H04N5/247

    Abstract: A camera system including a telephoto lens module is provided. The telephoto lens module includes a first image sensor, a first assembly, and a second assembly. The first assembly includes a first driving mechanism and a reflecting member connected to the first driving mechanism. The first driving mechanism is configured to drive the reflecting member to rotate around a first axis and a second axis. The second assembly is disposed between the first assembly and the first image sensor, including a second driving mechanism and a first lens. The second driving mechanism is configured to drive the first lens to move along a third axis. The first, second, and third axes are not parallel to each other. When light enters the telephoto lens along the first axis, light is reflected by the reflecting member and through the first lens along the third axis to the first image sensor.

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