Patent ID: 7567486

Claim:
A slim type optical pick-up actuator comprising: a lens holder provided with an object lens mounted at a predetermined portion thereof, two or more focusing coils received in a receiving groove thereof, a tracking coil disposed on a front surface of the focusing coils, and a tilt coil, and moving in 3-axis directions; a bipolar magnet disposed facing the coils; two or more unipolar magnets facing the bipolar magnet and having an opposite polarity to the bipolar magnet; a yoke plate configured to respectively attach the bipolar magnet and the two or more unipolar magnets; and a wire suspension supporting moving of the lens holder and electrically connected to the coils, wherein the lens holder is formed with a plurality of receiving grooves including a first receiving groove and a second receiving groove therein, the bipolar magnet and a first yoke of the yoke plate being disposed in the first receiving groove, the focusing coils and the tilt coil being installed in the second receiving groove, and the unipolar magnets and a second yoke of the yoke plate being disposed in the second receiving groove, the tracking coil being installed between the first receiving groove and the second receiving groove.