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    Driving method for optical element driving mechanism
    2.
    发明授权
    Driving method for optical element driving mechanism 有权

    公开(公告)号：US12099252B2

    公开(公告)日：2024-09-24

    申请号：US17835305

    申请日：2022-06-08

    Applicant: TDK TAIWAN CORP.

    Inventor： Shu-Shan Chen ,  Pai-Jui Cheng

    IPC: G02B7/09 ,  G02B7/105

    CPC classification number: G02B7/09 ,  G02B7/105

    Abstract: A driving method is provided. The driving method includes providing first driving information to a first driving element to drive a first movable portion to move relative a fixed portion in a first direction. The first driving information has a total duration, and includes positive driving signal, negative driving signal, and middle driving signal. The positive driving signal has a positive duration, the negative driving signal has a negative duration, and the middle driving signal has a middle duration. The positive duration, the negative duration, and the middle duration add up as the total duration. A ratio of the positive duration to the total duration is between 0.1 and 0.15.

    Optical system
    5.
    发明授权
    Optical system 有权

    公开(公告)号：US10809487B2

    公开(公告)日：2020-10-20

    申请号：US16007315

    申请日：2018-06-13

    Applicant: TDK TAIWAN CORP.

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

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

    Abstract: An optical system is provided and includes a fixed module, a movable module, a driving coil, an electrical circuit and a magnetic element. The fixed module includes a base and a circuit board, and the movable module includes an optical member holder, configured to hold an optical member. The magnetic element corresponds to the driving coil and is configured to generate an electromagnetic driving force to drive the optical member holder to move relative to the base. The driving coil and the electrical circuit are integrally formed in the circuit board. The driving coil partially overlaps the electrical circuit when viewed along a direction perpendicular to an optical axis of the optical member.

    Lens driving module
    6.
    发明授权
    Lens driving module 有权

    公开(公告)号：US10303042B2

    公开(公告)日：2019-05-28

    申请号：US15642487

    申请日：2017-07-06

    Applicant: TDK TAIWAN CORP.

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

    IPC: G02B17/00 ,  G03B13/36 ,  G02B7/04 ,  G03B3/02 ,  G03B3/10

    Abstract: A lens driving module includes a reflecting element, a base, a frame, a holder, an optical lens, a first electromagnetic driving assembly, and a second electromagnetic driving assembly. The frame is connected to the base, and the holder holds the optical lens and movably connects to the base. The reflecting element reflects light from the outside along a light incident direction to an optical lens along a first direction, wherein the light incident direction is substantially perpendicular to the first direction. The first and second electromagnetic driving assemblies are configured to force the holder and the optical lens to move relative to the base, wherein the first and second electromagnetic driving assemblies are situated in different positions in the light incident direction.

    Lens driving apparatus with closed-loop anti-shake structure
    8.
    发明授权
    Lens driving apparatus with closed-loop anti-shake structure 有权

    公开(公告)号：US09885880B2

    公开(公告)日：2018-02-06

    申请号：US15086202

    申请日：2016-03-31

    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

    CPC classification number: G02B27/646 ,  G02B7/10 ,  G03B3/10 ,  G03B5/02 ,  G03B2205/0015 ,  G03B2205/0069 ,  H04N5/23287

    Abstract: A lens driving apparatus with a closed-loop anti-shake structure, including: a lens holder comprising a coil; a frame comprising a plurality of magnets and receiving the lens holder; a driving circuit board comprising a plurality of coils corresponding to the plurality of magnets and 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.

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