Patent ID: 8320753

Claim:
A handshake correction apparatus for correcting shake of a camera, the handshake correction apparatus comprising: sensors that detect a current position of a correction lens, wherein the sensors comprise a first Hall sensor that detects a first displacement of the correction lens along a first axis perpendicular to an optical axis of the correction lens, and second Hall sensors disposed as a pair along a virtual extension line crossing the correction lens and that detect a second displacement of the correction lens along a second axis perpendicular to the optical axis and the first axis; an actuator that drives the correction lens in response to a control signal calculated according to the current position and a target position of the correction lens, the actuator comprising a first driving coil and second driving coils; a first magnet disposed to face the first Hall sensor, wherein polarity of the first magnet is aligned along the first axis direction, wherein the first magnet is not disposed on either the first axis or the second axis, and the first driving coil is aligned with the first magnet and the first Hall sensor in the first and second axis directions; and a pair of second magnets disposed to face respective ones of the second Hall sensors, wherein polarities of the second magnets are aligned along the second axis direction, wherein the second magnets are disposed on opposite sides of the first axis and the second axis, and the second driving coils are aligned with respective ones of the second magnets and the second Hall sensors in the first and second axis directions.