Anti-Shake Lens Driving Device

摘要

An anti-shake lens driving device includes a cover, a base, a movable part, a spring member, four upper magnets, four lower magnets, four driving coils and a circuit board. The cover has a through hole. The base is sleeved by the cover to form a central accommodation room. The movable part performs image-capturing through the through hole. The spring member is mounted exteriorly to the movable part to elastically fix the movable part inside the accommodation room. The upper magnets located above the spring member circle evenly the movable part. The lower magnets located below the spring member in a one-to-one matching manner with respect to the upper magnets circle evenly the movable part. The driving coils positioned individually corresponding to the upper/lower magnets circle evenly the movable part in a rectangle formation. The circuit board includes a circuit loop and electrically couples the driving coils.

主权项

1. An anti-shake lens driving device, defined with an X axis, a Y axis and a Z axis, perpendicular to each other, comprising:
a cover, having a through hole; a base, engaging the cover by having the cover to sleeve over the base so as to form a central accommodation room; a movable part, defined with an optical image-capturing axis parallel to the Z axis, performing image-capturing through the through hole; a spring member, mounted exteriorly to circle the movable part at a middle portion thereof so as to elastically fix the movable part inside the accommodation room; four upper magnets, evenly circling the movable part and being located above the spring member; four lower magnets, evenly circling the movable part and being located below the spring member in a one-to-one matching manner with respect to the four upper magnets; four driving coils, positioned individually in correspondence with the upper/lower magnets and evenly circling the movable part in a rectangle formation; and a circuit board, including a circuit loop and electrically coupling the four driving coils.