OBJECTIVE LENS DRIVE DEVICE, AND DISK RECORDING AND/OR REPRODUCING DEVICE

摘要

An objective lens drive device for moving an objective lens (21) in a focusing direction parallel to the direction of an optical axis and a tracking direction perpendicular to the direction of the optical axis, comprising a fixed part (10) having a support shaft (14) projectedly fitted therein, a movable part (11) having the objective lens (21) fitted thereto, having a hole (18) inserted onto the support shaft formed therein, and having a bobbin (16) movable along the support shaft and supported rotatably about the support shaft, a drive part having a magnet part (15) installed on one of the fixed part and the movable part and a coil part (22) installed on the other, and moving the objective lens in the focusing direction by moving the movable part along the support shaft and in the tracking direction by rotating the bobbin about the support shaft, and a support means having a magnetic member (25) for supporting the movable part thereon in the state of being tilted relative to the support shaft.