Patent ID: 7079333
Filing Date: 2006-07-18
Classification: G02B

Abstract:
1. A lens driver apparatus comprising: a body that is to be driven in a direction of an optical axis of a lens and to which said lens is attached, a guide axis for guiding and allowing the body to move freely in said direction of an optical axis of the lens without turning, a driving coil that is flatly wound and attached to the body providing a thrust on said body parallel to the direction of the optical axis when a current is provided to said driving coil so that said body moves together with the driving coil in the direction of the optical axis, and a driving magnet being disposed opposite side of the driving coil and along a direction of movement of the body, wherein the driving coil and the driving magnet are shaped in curved forms so as to conform to an outer shape of the lens; and wherein the driving magnet and the driving coil are disposed substantially within only a quadrant circumference of the lens, such that areas substantially corresponding to remaining quadrant circumferences of the lens are free of driving coils for providing thrust to the body in the direction of the optical axis.