OPTICAL ELEMENT DRIVING MECHANISM
An optical element driving mechanism is provided. The optical element driving mechanism includes a first movable part, a fixed part, and a driving assembly. The first movable part is for connecting an optical element. The first movable part may move relative to the fixed part. The driving assembly drives the first movable part to move.
1 . An optical element driving mechanism, comprising:
a first movable part, for connecting an optical element;
a fixed part, wherein the first movable part is movable relative to the fixed part; and
a driving assembly, driving the first movable part to move.
2 . The optical element driving mechanism as claimed in claim 1 , further comprising a second movable part that is movable relative to the fixed part in a first dimension, wherein when the second movable part moves, the second movable part drives the first movable part to move.
3 . The optical element driving mechanism as claimed in claim 2 , wherein the first movable part is movable relative to the second movable part.
4 . The optical element driving mechanism as claimed in claim 2 , further comprising a third movable part that is movable relative to the fixed part in a second dimension, wherein when the third movable part moves, the third movable part drives the first movable part and the second movable part to move.
5 . The optical element driving mechanism as claimed in claim 4 , wherein:
the first movable part is movable relative to the third movable part; and
the third movable part is movable relative to the second movable part.
6 . The optical element driving mechanism as claimed in claim 4 , further comprising a fourth movable part that is movable relative to the fixed part in a third dimension, wherein when the fourth movable part moves, the fourth movable part drives the first movable part to move.
7 . The optical element driving mechanism as claimed in claim 6 , wherein the fourth movable part is movable relative to the first movable part and the second movable part.
8 . The optical element driving mechanism as claimed in claim 6 , wherein:
when the fourth movable part moves, the fourth movable part does not drive the second movable part to move; and
when the third movable part moves, the second movable part does not drive the fourth movable part to move.
9 . The optical element driving mechanism as claimed in claim 6 , wherein the driving assembly includes:
a first magnetic element, at least partially fixedly disposed on the second movable part;
a first coil, corresponding to the first magnetic element, wherein the second movable part is movable relative to the first coil;
a second magnetic element, at least partially fixedly disposed on the third movable part;
a second coil, corresponding to the second magnetic element, wherein the third movable part and the second movable part are movable relative to the second coil; and
a third magnetic element, at least partially fixedly disposed on the fourth movable part, wherein the third magnetic element is movable relative to the first magnetic element and the first coil.
10 . The optical element driving mechanism as claimed in claim 6 , wherein when the first movable part moves in the first dimension, the first movable part drives the second movable part to move, and when the first movable part moves a first movement value, the second movable part moves a second movement value.
11 . The optical element driving mechanism as claimed in claim 10 , wherein when the first movable part moves in the third dimension, the first movable part drives the second movable part to move, and when the first movable part moves a third movement value, the second movable part moves a fourth movement value.
12 . The optical element driving mechanism as claimed in claim 11 , wherein the fourth movement value is less than the third movement value.
13 . The optical element driving mechanism as claimed in claim 11 , wherein the ratio of the fourth movement value to the third movement value is different from the ratio of the second movement value to the first movement value.
14 . The optical element driving mechanism as claimed in claim 11 , wherein the ratio of the fourth movement value to the third movement value is less than the ratio of the second movement value to the first movement value.
15 . The optical element driving mechanism as claimed in claim 6 , further comprising a guiding assembly corresponding to the second movable part, wherein the guiding assembly includes:
a first guiding part, wherein the second movable part drives the first movable part to move via the first guiding part, and the first guiding part is flexible; and
a second guiding part, wherein the second movable part moves relative to the fixed part via the second guiding part, and the second guiding part is flexible.
16 . The optical element driving mechanism as claimed in claim 15 , wherein:
the first guiding part has a first elasticity coefficient corresponding to the first dimension and a second elasticity coefficient corresponding to the third dimension; and
the second guiding part has a third elasticity coefficient corresponding to the first dimension and a fourth elasticity coefficient corresponding to the third dimension.
17 . The optical element driving mechanism as claimed in claim 16 , wherein:
the third elasticity coefficient is different from the fourth elasticity coefficient; and
the first elasticity coefficient is different from the second elasticity coefficient.
18 . The optical element driving mechanism as claimed in claim 16 , wherein:
the third elasticity coefficient is less than the fourth elasticity coefficient; and
the first elasticity coefficient is greater than the second elasticity coefficient.
19 . The optical element driving mechanism as claimed in claim 6 , wherein when the first movable part moves in the third dimension, the first movable part does not drive the second movable part to move.
20 . The optical element driving mechanism as claimed in claim 6 , further comprising a guiding assembly corresponding to the second movable part, wherein the guiding assembly includes:
a first guiding part, wherein the second movable part drives the first movable part to move via the first guiding part, and the first guiding part is flexible; and
a second guiding part, wherein the second movable part moves relative to the fixed part via the second guiding part, and the second guiding part is flexible.