| 摘要 |
<p>The invention provides an image dither correction device, which can retain a correction lens in an immovable way in a dormant state and meanwhile achieve a simplified and small-sized structure. The image dither correction device comprises a base with an opening part marking a central shaft, a movable part retaining the lens and movable relative to the base, a support mechanism supporting the movable part in a way to freely move in a plane perpendicular to the optical axis of the lens, a drive component driving the movable part in the plane, and a retaining component for retaining in a way to make the movable part positioned on a predetermined dormant position. The retaining component comprises a rotary driving mechanism (a pair of permanent magnets and a pair of coils) making the movable part rotate around the optical axis before an image dither correction, and a clamping stop mechanism for making the movable part clamped with a part of the base on a predetermined rotary position and then stopped. In this way, the lens and the movable part can be reliably retained in a way to be positioned on the dormant position in a dormant state.</p> |
