发明名称 OPTICAL DISK APPARATUS, GAP SERVO DEVICE AND GAP PULL-IN CONTROL METHOD
摘要 PROBLEM TO BE SOLVED: To provide an optical disk apparatus, a gap servo device and a gap pull-in control method.SOLUTION: An optical disk apparatus 1 of the present invention includes: a stabilization plate 21 for stabilizing rotation of a thin optical disk 2; a spindle motor 4 for rotatably driving the thin optical disk 2; an SIL optical head 6 for fixing an objective lens 5; tilt actuators 18, 19 for adjusting the tilt amount of the SIL optical head 6 with respect to the thin optical disk 2; a gap actuator 7 for controlling a gap between the SIL optical head 6 and the thin optical disk 2; and a control part 14 for controlling the tilt actuators 18, 19 and the gap actuator 7. The control part 14 functioning as a gap servo device performs control so as to adjust, at the time of an initial setting, the tilt amount of the SIL optical head 6 with respect to the stabilization plate 21, and to perform, at the time of recording and reproduction, gap pull-in for the thin optical disk 2 on the basis of the adjusted tilt amount.
申请公布号 JP2013186919(A) 申请公布日期 2013.09.19
申请号 JP20120051033 申请日期 2012.03.07
申请人 NIPPON HOSO KYOKAI <NHK> 发明人 KOIDE DAIICHI;KAJIYAMA TAKESHI;TOKUMARU HARUKI;SATO RYUJI
分类号 G11B7/085;G11B7/095;G11B7/135;G11B25/04;G11B33/14 主分类号 G11B7/085
代理机构 代理人
主权项
地址