Patent ID: 7609956
Filing Date: 2009-10-27
Classification: G03B

Abstract:
1. A compact camera module, comprising: a base, having an intervening cylinder; at least one upright rail, disposed on the intervening cylinder and perpendicular to a support plane of the base; an inner cylinder, having a zoom lens inside and at least one moving component, wherein the inner cylinder is disposed in a hollow space of the intervening cylinder and the moving component slides within the upright rail; a hollow outer cylinder, disposed around the intervening cylinder, the hollow outer cylinder having a sloping rotation rail applied to the moving component for sliding; at least one wire coil, secured around the outer cylinder; at least one torsion spring, encircling the outer cylinder and secured to the base and the wire coil at two ends; and a magnet-generating device, disposed around the wire coil and secured on the base, when the wire coil is electrified, an interaction between the magnetic field of the wire coil and the magnetic field of the magnet-generating device rotates the outer cylinder, the sloping rotation rail raises or lowers the moving component along the upright rail so as to raise or lower the inner cylinder and the zoom lens inside thereof, the rotated outer cylinder deforms the torsion spring, when the wire coil is not electrified, the deformed torsion spring drives the outer cylinder to rotate to an original position.