Patent ID: 11906810
Assignee: TDK TAIWAN CORP.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. An optical element driving mechanism used for disposing on an electronic apparatus, comprising:
a first movable portion used for connecting to a first optical element, wherein the first optical element is used for corresponding to a light;
a fixed portion, wherein the first movable portion is movable relative to the fixed portion;
a first driving assembly used for driving the first movable portion to move relative to the fixed portion; and
a circuit assembly used for electrically connecting to the electronic apparatus; and
a first position sensing assembly used for detecting the movement of the first movable portion relative to the fixed portion, comprising:
a first sensing element, comprising a first reference magnetic unit and a first magnetic sensing unit;
a second sensing element, comprising a second reference magnetic unit and a second magnetic sensing unit; and
a third sensing element, comprising a third reference magnetic unit and a third magnetic sensing unit;

wherein:
the fixed portion comprises a main axis passing through a reference point of the movable portion;
the first reference magnetic unit comprises a first north pole and a first south pole, the first north pole and the first south pole are arranged in a first direction when viewed along the main axis;
the second reference magnetic unit comprises a second north pole and a second south pole, the second north pole and the second south pole are arranged in a second direction when viewed along the main axis;
the third reference magnetic unit comprises a third north pole and a third south pole, the third north pole and the third south pole are arranged in a third direction when viewed along the main axis;
at least one of the first direction, the second direction, and the third direction is different from other two of the first direction, the second direction, and the third direction.