Patent ID: 7900222

Claim:
An optical pickup comprising: a movement base that is moved in a radial direction of a disk recording medium that is placed on a disk table; and an objective lens drive device arranged at the movement base, wherein the optical pickup irradiates the disk recording medium placed on the disk table with laser light, and wherein the objective lens drive device includes a fixed block fixed to the movement base, a movable block having an objective lens and a lens holder that holds the objective lens, and being configured to be operated relative to the fixed block in a focusing direction, which is a direction toward and away from a recording surface of the disk recording medium, and in a tracking direction, which is a substantially radial direction of the disk recording medium, a plurality of support springs that couple the fixed block with the movable block, and a focusing magnetic circuit having a focusing coil and a focusing magnet, and being configured to operate the movable block in the focusing direction, wherein a distance between the fixed block and the recording surface of the disk recording medium is larger than a distance between the movable block and the recording surface of the disk recording medium, the plurality of support springs are inclined with respect to the recording surface of the disk recording medium, and the plurality of support springs have a longitudinal direction orthogonal to a direction of a thrust generated at the focusing magnetic circuit to the movable block during a focusing operation.