Patent ID: 7817505
Filing Date: 2010-10-19
Classification: G11B

Abstract:
1. An optical pickup actuator, comprising: a blade with an objective lens; a plurality of suspensions coupled at one end to the blade and fixed at another end to a holder, provided at one side of a base, such that the suspensions movably support the blade; a focusing coil member and a tracking coil member installed on the base, separated from each other, in an asymmetrical relationship with respect to the lens; and a single magnet member installed on the blade between the focusing coil member and the tracking coil member, wherein the focusing coil member, the tracking coil member and the single magnet member are installed on one side of the objective lens in an asymmetrical relationship with respect to the lens, and wherein the blade on which the single magnet member is installed is not in direct communication with the focusing coil and the tracking coil installed on the base to avoid having the blade receive heat generated from current applied to the coil members.