Patent ID: 7036133

Claim:
A biaxial actuator for an optical pickup, comprising: a lens holder having an objective lens, a tracking coil and a focusing coil; and a base member on which the lens holder is placed in such a way as to be able to displace in a focusing direction and in a tracking direction, the base member having bend-formed rising pieces each having a magnet opposed to the focusing coil; wherein the lens holder is controlled in such a way as to displace in the focusing direction and in the tracking direction; and strength of the base member is enhanced by widening each of the rising pieces, which extends from a top end to a bend-formed portion provided at a root thereof, so that width of each of the rising pieces increases toward the root over whole height thereof; wherein each of the rising pieces having an attaching division, to which the magnet is attached, and a lower division, the attaching division having a size nearly equal to the size of the magnet and the lower division being wider than the attaching division.