Patent ID: 7555761

Claim:
An optical pick-up actuator comprising: a lens holder holding an objective lens; a tracking coil wound with wire disposed at a central portion on both sides of the lens holder and including an upper width of the tracking coil at a side where the objective lens is located, the upper width of the tracking coil being less than a lower width of the tracking coil; a focusing coil wound with wire disposed at a left and a right on both sides of the lens holder and including an upper width of the focusing coil at a side where the objective lens is located, the upper width of the focusing coil being greater than a lower width of the focusing coil; and a magnet facing the tracking coil and the focusing coil, wherein the upper width and the lower width of the tracking coil are arranged opposite from each other, and wherein the upper width and the lower width of the focusing coil are arranged opposite from each other.