Optical system
AssigneeTDK Taiwan Corp.
InventorsFu-Yuan WU, Chao-Chang HU, Yi-Liang CHAN
Life of this patent
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Abstract
An anti-shake compensation structure is provided. The anti-shake compensation structure includes an auto-focus module driving a lens to move along a light entering path of the lens. The auto-focus module includes a lens holder holding the lens, a coil adjacent to the lens holder, and a magnet corresponding to the coil. The anti-shake compensation structure further includes an outer frame supporting the lens holder, and a compensation driving unit driving the lens to sway relative to the outer frame along a direction not parallel to the light entering path. The compensation driving unit includes a compensation coil corresponding to the magnet.
Claims20
An optical system, comprising:
- a first movable portion, connected to a lens;
- a fixed portion, wherein the first movable portion is moveable;
- a second movable portion, connected to an image sensor, and the second movable portion is movable relative to the first movable portion;
- a driving assembly, driving the first movable portion to move, wherein the driving assembly comprises:
- a magnet;
- a first coil, corresponding to the magnet and generating a first driving force to drive the first movable portion;
- a second coil, corresponding to the magnet and generating a second driving force to drive the second movable portion,
- wherein a first surface and a second surface of the magnet face the first coil and the second coil respectively, and the first surface and second surface face different direction.
Dependencies are inferred from the claim text.