Patent ID: 7385885

Claim:
An optical pick-up actuator comprising: a lens holder for receiving and moving an object lens in a predetermined direction; a plurality of first coils connected in parallel on one side of the lens holder, for moving the lens holder in focusing and tilting directions; a single second coil attached to each central portion of both the right and left sides of the lens holder, for moving the lens bolder in a tracking direction; and a polarity generating means facing the first and the second coils, for generating different polarities in perpendicular directions, wherein movement centers of the plurality of first coils face boundaries between polarities of the polarity generating means having different polarities in a vertical direction, and the first coils are moved in focusing/tilting directions, and the plurality of first coils further comprise: upper focusing coils connected in series on both the right and left sides of the lens holder, each upper focusing coil facing the boundary between polarities of a magnet and a magnetic yoke, for a focusing movement; and lower tilting coils connected in series on both the right and left sides of the lens holder, and the movement center of each lower tilting coil facing the boundary between polarities of the magnet and the magnetic yoke having different polarities, for a tilting movement.