Patent ID: 7663984

Claim:
An optical pickup actuator comprising a base, a blade having an objective lens mounted thereon, a plurality of suspensions supporting the blade to be movable with respect to the base and providing an electroconductive path, and a magnetic circuit driving the blade according to a driving signal applied through the respective suspensions, wherein the magnetic circuit comprises: a magnet fixed with the base; and a fine pattern coil installed on the blade at a position facing the magnet, and comprising a track pattern coil, a focus pattern coil, and a tilt pattern coil independently driven by current applied through the suspensions and providing driving forces in a track direction, a focus direction, and a tilt direction of the blade; wherein the fine pattern coil comprises first and second fine pattern coil layers which are electrically insulated from each other; and wherein the first fine pattern coil layer comprises the track pattern coil and the focus pattern coil and the second fine pattern coil layer comprises the track pattern coil and the tilt pattern coil.