Tri-axis closed-loop anti-shake structure

    公开(公告)号:US10372017B2

    公开(公告)日:2019-08-06

    申请号:US15894080

    申请日:2018-02-12

    Abstract: Provided is a lens driving device includes a lens holder for carrying a lens; a frame for receiving the lens holder; a first driving component for driving the lens holder to move along a first direction in respect to the frame; a base moveably connected to the frame; a second driving component for driving the frame to move along a second direction in respect to the base, and a position sensor disposed on the frame for sensing a change in a position of the lens holder along the first direction in respect to the frame, wherein the first direction is not parallel to the second direction.

    Optical image stabilizer with improved magnetic disposition

    公开(公告)号:US10168545B2

    公开(公告)日:2019-01-01

    申请号:US14884965

    申请日:2015-10-16

    Abstract: The present invention discloses a lens driving device which includes a lens holder defining an optical axis and being for holding a lens; a first AF coil disposed with respect to the lens holder; an OIS coil structure having two coils respectively disposed by two sides of the lens holder on a first plane having a normal direction parallel to the optical axis; two magnets respectively disposed with respect to the respective coils and having a first surface facing the first AF coil and a second surface facing the OIS coil structure; and a circuit structure connected electrically to the OIS coil structure and taking control thereof. At least one of the two magnets and the first AF coil cooperate to drive the lens holder along the optical axis, and each of the two magnets and the OIS coil structure cooperate to drive the lens holder along a direction perpendicular to the optical axis.

    Electromagnetic driving module and camera device using the same

    公开(公告)号:US09904070B2

    公开(公告)日:2018-02-27

    申请号:US15144011

    申请日:2016-05-02

    CPC classification number: G02B27/646 G02B7/023 H02K33/00 H02K41/0356

    Abstract: An electromagnetic driving device is provided, which includes a stationary portion, a movable portion adapted to support an element, a number of rolling balls, a driving magnet, a driving coil, and a magnetic attraction element. The stationary portion and the movable portion are arranged along a main axis. The rolling balls and the driving magnet are positioned between the stationary portion and the movable portion. The driving coil is arranged to correspond to the driving magnet and configured to enable the movement of the movable portion along a direction perpendicular to the main axis. The magnetic attraction element is arranged to correspond to the driving magnet. The magnetic force between the magnetic attraction element and the driving magnet is greater than the sum of the weight of the movable portion, the element, and the magnetic member.

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