Patent ID: 6819500
Filing Date: 2004-11-16
Classification: G02B

Abstract:
A lens device comprising:a blur compensation lens holding member holding a blur compensation lens; two blur compensation actuators that drive the blur compensation lens holding member to move in a direction orthogonal to an optical axis of the lens device to compensate for image blur; a movable lens holding member holding a movable lens; and an axial driving actuator that drives the movable lens holding member to move in the direction of the optical axis, the axial driving actuator including a magnet magnetized vertically in the direction of the optical axis, a yoke, and a coil mounted on the movable lens holding member at a predetermined distance from the magnet, said coil being movable relative to the magnet in the direction of the optical axis by application of current in the direction orthogonal to a magnetic flux generated by the magnet, said driving actuator being disposed at a position symmetrical to one of the two blur compensation actuators with respect to the optical axis when viewed in the direction of the optical axis.