| 摘要 |
<p>In a disk recorduction apparatus such as a video disk player or a compact disk player, a sheet-like transparent member (11) is inserted into a convergent optical path of optical beams, and this transparent member is tilted so as to offset the comatic aberration due to the inclination of the optical disk. In this way, even when a recording density is improved, data can be recorded and reproduced reliably by correcting the inclination of the optical disk. Transparent parallel plates and an optical spot correction means including at least coils (19, 20) and a magnet are disposed in the optical path of the optical beams travelling toward the optical disk so as to correct the inclination of the parallel plates. Accordingly, the comatic aberration due to skew of the optical disk can be corrected reliably by a simple construction.</p> |
