Patent ID: 7131128

Claim:
An optical pickup actuator for use with a recording medium, the optical pickup actuator comprising: a swing arm pivoting in a tracking direction with respect to the recording medium; a first driving unit pivoting the swing arm; an optical pickup facing the recording medium; an elastic member having one end fixed to the swing arm and a free end portion elastically deformable in a focus direction with respect to the recording medium, wherein the optical pickup has an electrical connection and is mounted entirely on the free end portion of the elastic member; and a second driving unit deforming and driving the elastic member; wherein the second driving unit comprises: at least one coil provided on an end of the swing arm and functioning as an electromagnet according to a supply of current; and at least one magnet facing the at least one coil, wherein the at least one magnet is provided on the optical pickup to generate a solenoid force with the corresponding coil; wherein the at least one magnet is provided on a surface of the optical pickup opposite of the recording medium; wherein the at least one coil comprises a pair of coils, so that the pair of coils is symmetrically arranged at both sides with respect to a center line of the at least one magnet; and wherein each coil of the pair of coils provides force in the same direction to provide focus control, and each coil of the pair of coils provides force in opposite directions to provide tilt control.