| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical pickup capable of obtaining good recording/reproducing quality without producing any offset in a tracking error signal. <P>SOLUTION: A hologram element 8 divides a laser beam reflected by a disk 15, the device laser beams are received by the light receiving surface of a photodetector 5, and a lens holder 12, an objective lens 11 and the hologram element 9 are integrally driven in a tracking direction by an actuator 14. <P>COPYRIGHT: (C)2007,JPO&INPIT |
