Patent ID: 7724614
Filing Date: 2010-05-25
Classification: G11B

Abstract:
1. An optical pickup actuator, comprising: a lens holder configured to hold an object lens; a pair of focusing coils operably coupled to the lens holder; a tracking coil operably coupled to the lens holder; a pair of radial coils operably coupled to the lens holder, each of the pair of radial coils being wound at a respective coil holder of a pair of coil holders and each of the pair of focusing coils being wound at a respective coil holder of the pair of coil holders, wherein the tracking coil is positioned between the pair of radial coils and the pair of focusing coils respectively wound on the pair of coil holders on a same side of the lens holder; and a plurality of multipolar magnets supported on a yoke and positioned facing the pair of focusing coils, the tracking coil, and the pair of radial coils.