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US 11,693,296 B2Granted
Optical element driving mechanism and optical system
AssigneeTDK Taiwan Corp.
InventorsChao-Hsi Wang, Chao-Chang Hu, Chih-Wei Weng, He-Ling Chang
Life of this patent
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Abstract
An optical element driving mechanism is provided. The optical element driving mechanism includes a fixed part, a movable part, a driving assembly, and a positioning assembly. The movable part is movably disposed on the fixed part. The movable part is connected to an optical element. At least a portion of the driving assembly is disposed on the fixed part. The positioning assembly is disposed on the fixed part or the movable part to limit the movable part at an extreme position relative to the fixed part.
Claims17
An optical element driving mechanism, comprising:
- a fixed part;
- a movable part movably disposed on the fixed part and connected to an optical element;
- a driving assembly, wherein at least a portion of the driving assembly is disposed on the fixed part;
- and
- a positioning assembly disposed on the fixed part or the movable part to limit the movable part at an extreme position relative to the fixed part;
- wherein the driving assembly comprises a magnetically permeable element and a coil wound around the magnetically permeable element in a first direction;
- wherein the driving assembly drives the movable part to move along the first direction;
- wherein when viewed along the first direction, the coil is polygonal, comprising a long side that is parallel with a second direction and a short side that is parallel with a third direction;
- wherein the fixed part further comprises a body and a cap, and a portion of the optical element is revealed between the body and the cap when viewed along the second direction.
6 more elements
An optical system, comprising:
- an optical element driving mechanism, comprising:
- a fixed part comprising an opening corresponding to an optical element;
- a movable part movably disposed on the fixed part and connected to the optical element;
- a driving assembly driving the movable part and the optical element to move along a first direction, wherein at least a portion of the driving assembly is disposed on the fixed part, and the driving assembly comprises a magnetically permeable element and a coil wound around the magnetically permeable element in the first direction;
- and
- a positioning assembly disposed on the fixed part or the movable part to limit the movable part at an extreme position relative to the fixed part;
- a first camera module;
- and
- a light path adjustment module corresponding to the first camera module, wherein the light path adjustment module and the driving assembly are arranged along the first direction;
- wherein the opening further corresponds to the light path adjustment module.
7 more elements
Dependencies are inferred from the claim text.