| 摘要 |
PURPOSE:To exactly follow the surface oscillation of a disk, by constituting so that an optical pickup part can turn by making the vicinity of the center of the disk a supporting point. CONSTITUTION:An optical pickup 6 is fitted to the end part of a cantilever 4, the cantilever 4 is supported by an elastic supporting body 5, and its supporting point is in the vicinity of an optical disk 1. Therefore, when following the surface oscillation of the optical disk 1, an angle between the disk surface and the optical axis of the optical pickup can be held at a right angle at all times. |
