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US 11,448,852 B2Granted
Optical element driving mechanism
AssigneeTDK Taiwan Corp.
InventorsChao-Chang Hu, Liang-Ting Ho, Sin-Jhong Song
Life of this patent
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Abstract
An optical element driving mechanism includes a fixed portion, a movable portion, a moving portion, a first driving assembly and a second driving assembly. The movable portion is movable relative to the fixed portion. The moving portion is connected to an optical element having an optical axis, and is movable relative to the movable portion. The first driving assembly drives the movable portion to move relative to the fixed portion; and the second driving assembly drives the moving portion to move relative to the movable portion.
Claims18
An optical element driving mechanism comprising:
- a fixed portion;
- a movable portion, which is movable relative to the fixed portion;
- a moving portion, connected to an optical element having an optical axis, and movable relative to the movable portion;
- a first driving assembly, comprising a first driving coil, driving the movable portion to move relative to the fixed portion;
- a second driving assembly, comprising a second driving coil and a driving magnetic element, driving the moving portion to move relative to the movable portion;
- wherein the moving portion moves relative to the movable portion in a direction that is parallel to the optical axis, and the movable portion moves relative to the fixed portion in a direction that is parallel to the optical axis;
- wherein the first driving coil is disposed on the fixed portion, the second driving coil is disposed on the moving portion, and the driving magnetic element is disposed on the movable portion.
4 more elements
An optical element driving mechanism comprising:
- a fixed portion;
- a movable portion, which is movable relative to the fixed portion;
- a moving portion, connected to an optical element having an optical axis, and movable relative to the movable portion;
- a first driving assembly, driving the movable portion to move relative to the fixed portion;
- a second driving assembly, driving the moving portion to move relative to the movable portion;
- a first elastic assembly, disposed near a light incident end of the moving portion, elastically connecting the fixed portion, the movable portion and the moving portion, so that the fixed portion, the movable portion and the moving portion move relative to each other;
- and
- a second elastic assembly, disposed near a light-emitting end of the moving portion, elastically connecting the fixed portion, the movable portion, and the moving portion, so that the fixed portion, the movable portion, and the moving portion move relative to each other;
- wherein the first elastic assembly has a first fixed connecting portion connected to the fixed portion, and the second elastic assembly has a second fixed connecting portion connected to the fixed portion, and when viewed in a direction that is parallel to the optical axis, the first fixed connecting portion and the second fixed connecting portion do not overlap each other.
6 more elements
An optical element driving mechanism comprising:
- a fixed portion;
- a movable portion, which is movable relative to the fixed portion;
- a moving portion, connected to an optical element having an optical axis, and movable relative to the movable portion;
- a first driving assembly, driving the movable portion to move relative to the fixed portion;
- a second driving assembly, driving the moving portion to move relative to the movable portion;
- wherein the fixed portion has a first upper limit plane and a first lower limit plane, which restrict a movement of the movable portion in a first movement range, and the movable portion has a second upper limit plane and a second lower limit plane, which restrict a movement of the moving portion in a second movement range, and when viewed in a direction that is perpendicular to the optical axis, the first upper limit plane and the second upper limit plane do not overlap each other, or the first lower limit plane and the second lower limit plane do not overlap each other.
3 more elements
An optical element driving mechanism comprising:
- a fixed portion;
- a movable portion, which is movable relative to the fixed portion;
- a moving portion, connected to an optical element having an optical axis, and movable relative to the movable portion;
- a first driving assembly, driving the movable portion to move relative to the fixed portion;
- a second driving assembly, driving the moving portion to move relative to the movable portion;
- and
- a third driving assembly, which drives the moving portion and the movable portion to move relative to the fixed portion.
4 more elements
Dependencies are inferred from the claim text.