PURPOSE: To realize a stable operation even at a high speed by intersecting an objective lens turning center axis line positioned to be deviated from the center of the objective lens with an optical axis or luminous flux of light emitted from a laser unit.
CONSTITUTION: Since a centroid of a turning movable part consisting of the objective lens 2, a holder 3, the laser unit 4, a reflecting plate 5, a tracking coil 25, a focusing coil 26 and a pivot 27 of the optical pickup device is positioned on the turning axis line 6, turning motion in good balance can be performed. In this case, a centroid of a movable part 21 including an intermediate member 19 and a pressing spring 21 in addition to the turning movable part is positioned on a plane including movable end parts of leaf springs 20a and 20b, and is conformed with the centroid position of the turning movable part. Consequently, the stable drive is performed without generating a rotational vibration even in the driving direction of Z.