Optical image stabilizer

摘要

An optical image stabilizer furnished in an image sensing module includes a casing having a compartment, a fixing plate fixed to the casing, a movable part supporter, a movable part connected to the movable part supporter, a coil, at least one magnet, at least one compensation module, a suspension module connecting the movable part, and a base. The coil furnished outside the movable part is corresponding to the magnet located on the inner surface of the movable part supporter. The base to support the casing is located on the image sensing module. The vertical distance between the compensation module and the image sensing module is larger than that between the coil and the image sensing module. A light inlet side of the movable part is near to the compensation module, while a light outlet side thereof is near to the image sensing module.

主权项

1. An optical image stabilizer, furnished in an image sensing module and defined with an X-axis direction, a Y-axis direction and a Z-axis direction, comprising:
a fixing plate; a movable part, defining an optical axis, further including a light inlet side and a light outlet side; the optical axis being parallel to the Z-axis direction; a movable part supporter, having an interior room for the movable part to be accommodated thereinside; a coil, furnished outside the movable part; at least one magnet, located on an inner surface of the movable part supporter by corresponding to the coil, wherein the at least one magnet and the coil are integrated to form an electromagnetic driving module for driving the movable part to undergo a linear Z-axial motion along the optical axis with respect to the movable part supporter; and at least one compensation module, mounted on the fixing plate by corresponding to the at least one magnet; wherein a distance along said Z-axial direction between the compensation module and the image sensing module is larger than another distance along the Z-axial direction between the coil and the image sensing module, the light inlet side of the movable part is near to the compensation module, and the light outlet side of the movable part is near to the image sensing module.