Patent ID: 8380057
Filing Date: 2013-02-19
Classification: G03B

Abstract:
1. An anti-shake structure for auto-focus module for capturing and focusing light on an image sensor covered by a sensor holder, comprising: a frame having a top cover plate formed with a central opening, and the top cover plate being provided at predetermined positions with a plurality of through holes; an auto-focus module being fixedly connected to the top cover plate for driving a lens to move forward and rearward in a light incident path, i.e. in z-axis direction, so that the lens focuses the captured light on the image sensor; a lens suspender with at least one compensation lens arranged thereon, the lens suspender being connected to a plurality of suspension wires while the suspension wires have respective one end opposite to the lens suspender extended through the through holes on the top cover plate to connect to the sensor holder, so that the compensation lens is correspondingly suspended in the light incident path and located in front of the lens; and a shake compensation driving unit for driving the lens suspender to move horizontally along x-axis direction or y-axis direction, so as to compensate any shift of image caused by hand shaking, wherein the shake compensation driving unit includes a magnet assembly including at least one x-axis magnet and at least one y-axis magnet; and a coil assembly including at least one x-axis coil and at least one y-axis coil corresponding to the x-axis magnet and the y-axis magnet, respectively, for receiving the shake signal and generating electromagnetic fields correspondingly, so as to drive the lens suspender and the compensation lens to move along x-axis direction or y-axis direction, and wherein the magnet assembly is fixedly connected to a top of the top cover plate of the frame, and the coil assembly is connected to an under side of the lens suspender.