| 摘要 |
PURPOSE:To provide an optical head easy for constituting and assembling and capable of precise focusing driving. CONSTITUTION:A window is formed in a prescribed part of a holder 2, and a movable body and a base are constituted of an integrally forming member capable of displacing only in the direction nearly perpendicular to the direction Y. Then, this device is constituted so that a centroid position of a connection body of a lens 1, a focusing coil 3 and a tracking coil 4 coincides nearly with the center of driving force generated in the focusing coil 3. |
