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US 12,763,645 B2Granted
Optical element driving mechanism
AssigneeActutek Corporation
InventorsChen-Chi Kuo, Sin-Jhong Song
Life of this patent
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Abstract
An optical element driving mechanism is provided. The optical element driving mechanism includes a frame, a holder, and a driving assembly. The holder is connected to an optical element with an optical axis. The holder is movable relative to the frame. The driving assembly drives the holder to move relative to the frame. The drive assembly includes a first coil, a first magnetic element, and a second magnetic element. The first magnetic element corresponds to the first coil. The second magnetic element is not in direct contact with the first magnetic element. The first magnetic element has a first surface facing the first coil and a second surface facing the second magnetic element. The first surface is not parallel with the second surface.
Claims21
An optical element driving mechanism, comprising:
- a frame;
- a holder connected to an optical element with an optical axis, wherein the holder is movable relative to the frame;
- and
- a drive assembly driving the holder to move relative to the frame, wherein the drive assembly comprises:
- a first coil;
- a first magnetic element corresponding to the first coil;
- and
- a second magnetic element not in direct contact with the first magnetic element,
- wherein the first magnetic element has a first surface facing the first coil and a second surface facing the second magnetic element, and the first surface is not parallel with the second surface,
- wherein the optical element driving mechanism further comprises an intermediate element located between the first magnetic element and the second magnetic element, and the intermediate element comprises an intermediate element surface that is parallel to the second surface,
- wherein when viewed along a direction perpendicular to the second surface, the intermediate element does not overlap with at least part of the first magnetic element and the second magnetic element,
- wherein the first magnetic element, the intermediate element, and the second magnetic element are sequentially arranged along the direction perpendicular to the second surface,
- wherein a recess is located between the first magnetic element and second magnetic element,
- wherein the recess and the intermediate element do not overlap when viewed along the direction perpendicular to the second surface,
- wherein the first magnetic element, the intermediate element, and the second magnetic element at least partially overlap when viewed along the optical axis, and
- wherein the recess and the intermediate element do not overlap when viewed along the optical axis.
13 more elements
An optical element driving mechanism, comprising:
- a frame;
- a holder connected to an optical element with an optical axis, wherein the holder is movable relative to the frame;
- and
- a drive assembly driving the holder to move relative to the frame, wherein the drive assembly comprises:
- a first coil;
- a first magnetic element corresponding to the first coil;
- and
- a second magnetic element not in direct contact with the first magnetic element,
- wherein the first magnetic element has a first surface facing the first coil and a second surface facing the second magnetic element, and the first surface is not parallel with the second surface,
- wherein the optical element driving mechanism further comprises an intermediate element located between the first magnetic element and the second magnetic element, and the intermediate element comprises an intermediate element surface that is parallel to the second surface,
- wherein when viewed along a direction perpendicular to the second surface, the intermediate element does not overlap with at least part of the first magnetic element and the second magnetic element,
- wherein the first magnetic element, the intermediate element, and the second magnetic element are sequentially arranged along the direction perpendicular to the second surface,
- wherein the drive assembly further comprises a second coil, and the second magnetic element corresponds to the second coil, and
- wherein the second coil, the first magnetic element, the intermediate element, and the second magnetic element at least partially overlap when viewed along the optical axis.
11 more elements
An optical element driving mechanism, comprising:
- a frame;
- a holder connected to an optical element with an optical axis, wherein the holder is movable relative to the frame;
- and
- a drive assembly driving the holder to move relative to the frame, wherein the drive assembly comprises:
- a first coil;
- a first magnetic element corresponding to the first coil;
- and
- a second magnetic element not in direct contact with the first magnetic element,
- wherein the first magnetic element has a first surface facing the first coil and a second surface facing the second magnetic element, and the first surface is not parallel with the second surface,
- wherein the optical element driving mechanism further comprises an intermediate element located between the first magnetic element and the second magnetic element, and the intermediate element comprises an intermediate element surface that is parallel to the second surface,
- wherein when viewed along a direction perpendicular to the second surface, the intermediate element does not overlap with at least part of the first magnetic element and the second magnetic element,
- wherein the first magnetic element, the intermediate element, and the second magnetic element are sequentially arranged along the direction perpendicular to the second surface,
- wherein the intermediate element protrudes in a direction away from the first coil, and
- wherein the intermediate element does not overlap with the first coil when viewed along the optical axis.
11 more elements
Dependencies are inferred from the claim text.