| 摘要 |
PROBLEM TO BE SOLVED: To suppress vibration of optical heads on the premise that the plurality of optical heads and actuators of each of them are provided. SOLUTION: When a first objective lens actuator 16 drives the holder 21 of the objective lens of a first optical head 14, a second objective lens actuator 17 also drives the holder 21 of the objective lens of a second optical head 15 to vibrate the magnetic field circuit 23 of the second objective lens actuator 17. This vibration is transmitted to an optical disk 11 through a guide shaft 19, a base 20 and a spindle motor 13 to cancel the vibration of the optical disk 11 occurring due to driving of the first optical head 14 to suppress the vibration of the optical disk 11. COPYRIGHT: (C)2004,JPO
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