Patent ID: 11880090
Assignee: TDK TAIWAN CORP.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 9:
10. An optical element driving mechanism, comprising:
a movable part, including an optical element holder for connecting an optical element,
wherein the optical element is configured to receive an incident light adjusted by an optical path adjusting unit;
a fixed part, wherein the movable part is movable relative to the fixed part;
a driving assembly, configured to drive the movable part to move relative to the fixed part;
a driving assembly holder, connected to at least a part of the driving assembly; and
a supporting assembly, wherein the movable part is movable relative to the fixed part in multiple dimensions via the supporting assembly,
wherein the driving assembly has a first coil, a second coil, a third coil, a first magnet, and a second magnet,
wherein the first coil and the first magnet are configured to drive the optical element holder to move along a first dimension relative to the driving assembly holder,
wherein the second coil and the second magnet are configured to drive the driving assembly holder to move along a second dimension relative to the fixed part,
wherein the third coil and the first magnet are configured to drive the driving assembly holder to move along a third dimension relative to the fixed part,
wherein the second dimension is parallel to an optical axis of the optical element,
wherein the supporting assembly includes a first elastic element that has a plate-shaped structure, and the optical element holder is movably connected to the driving assembly holder via the first elastic element,
wherein the first dimension is parallel to a first direction, the second dimension is parallel to a second direction, and the third dimension is parallel to a third direction, wherein the first, second, and third directions are perpendicular to each other,
wherein the fixed part further includes a base and a casing arranged along a main axis with the base, and the casing further includes a top wall and a side wall,
wherein the top wall is perpendicular to the main axis, and the side wall extends from an edge of the top wall,
wherein the top wall is not parallel to the side wall, the side wall is parallel to the main axis, and the base is perpendicular to the main axis,
wherein the optical axis is not parallel to the main axis, and the main axis is perpendicular to the optical axis,
wherein the supporting assembly further includes a second elastic element and a third elastic element, the optical element holder is movably connected to the driving assembly holder via the second elastic element, and the movable part is movably connected to the fixed part via the third elastic element,
wherein the extension direction of the first elastic element is parallel to a first imaginary plane, the extension direction of the second elastic element is parallel to the first imaginary plane, and the centers of the first and second elastic elements are arranged along the third direction,
wherein the first imaginary plane passes through the first elastic element and the second elastic element, and the first imaginary plane is perpendicular to the main axis and parallel to the optical axis,
wherein the third elastic element has an elongated structure, and the extension direction of the third elastic element is not parallel to the optical axis, and
wherein the third elastic element is perpendicular to the first imaginary plane.