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US 12,754,460 B2Granted
Optical element driving mechanism
AssigneeActutek Corporation
InventorsChun-Chia Peng, Po-Xiang Zhuang, Chia-Che Wu, Yi-Ho Chen, Ko-Lun Chao, Yi-Fan Lee
Life of this patent
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Abstract
An optical element driving mechanism is provided. The optical element driving mechanism includes a movable portion used for connecting an optical element, a fixed portion, and a driving assembly used for driving the movable portion to move relative to the fixed portion. The movable portion is movable relative to the fixed portion. The driving assembly is used for driving the movable portion to move relative to the fixed portion.
Claims18
An optical element driving mechanism, comprising:
- a movable portion connected to an optical element;
- a fixed portion, wherein the movable portion is movable relative to the fixed portion;
- a driving assembly used for driving the movable portion to move relative to the fixed portion;
- a first sensing assembly used for detecting rotation of the movable portion relative to the fixed portion taking a first rotational axis as an axis of rotation, wherein the first sensing assembly comprises a first reference object and a first sensing element, the first sensing element corresponds to the first reference object, the first reference object comprises a first magnetic portion and a second magnetic portion arranged along a first axis;
- and
- a second sensing assembly used for detecting the rotation of the movable portion relative to the fixed portion taking a second rotational axis as an axis of rotation, wherein the second sensing assembly comprises a second reference object and a second sensing element, the second sensing element corresponds to the second reference object, the second reference object comprises a third magnetic portion and a fourth magnetic portion arranged along a second axis, and a maximum size of the third magnetic portion is different from a maximum size of the fourth magnetic portion in the second axis.
3 more elements
Dependencies are inferred from the claim text.