| 摘要 |
<p>[Problem] To control the posture of an object lens more accurately. [Solution] This optical pickup device comprises: a lens holder that holds an object lens; an actuator that drives the lens holder; a pair of suspension wires connected between the actuator and respective first side surfaces of the lens holder, which oppose one another, in a manner such that the lens holder moves in a focusing direction and a tracking direction; coils that are mounted on respective second side surfaces, which oppose one another and intersect with the first side surfaces, the coils being supplied with signals for driving the lens holder from the actuator via the pair of suspension wires; and magnets arranged in positions opposing the respective coils. Each of the opposing first side surfaces has a projecting piece around which the end of the coil that is electrically connected to the suspension wire is wound in a direction along each first side surface. The projecting piece on at least one of the first side surfaces is shaped such that the length per turn of the wound coil becomes shorter toward the first side surface.</p> |
