An optical pickup actuator for use with a recording medium includes 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 is coupled to the free end portion of the elastic member, and a
second driving unit deforming and driving the elastic member.