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    • 2. 发明公开
    • OPTICAL DISC DEVICE
    • OPTISCHE PLATTENVORRICHTUNG
    • EP1860652A1
    • 2007-11-28
    • EP06729283.9
    • 2006-03-16
    • MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    • SATO, TakahiroWATANABE, Katsuya
    • G11B7/085G11B7/135G11B7/24
    • G11B7/08505G11B7/08588G11B7/121G11B7/24
    • An optical disk drive according to the present invention includes: an optical pickup 6 including a light source 23 that radiates a light beam 21 to irradiate an optical disk 100, at least one objective lens 22 for converging the beam 21, and an actuator that can move the lens 22 perpendicularly to the disk 100; a transport stage 11 for displacing the pickup 6 in a disk radial direction; a rim detecting section 30 for sensing if the irradiated position of the beam 21 has passed an outer edge of the disk 100 while the pickup 6 is being displaced from an inner area of the disk toward the outer edge thereof to conduct a seek operation; and a control section 40 for getting the lens 22 retracted away from the disk 100 by the actuator and getting the pickup 6 displaced toward the inner area of the disk by the transport stage 11 if the irradiated position of the light beam 21 has been sensed to have passed the outer edge of the disk 100.
    • 根据本发明的光盘驱动器包括:光拾取器6,其包括照射光束21以照射光盘100的光源23,用于会聚光束21的至少一个物镜22和可以使光束21收敛的致动器 将透镜22垂直于盘100移动; 用于使拾取器6沿盘径向移位的传送台11; 边缘检测部分30,用于在拾取器6从盘的内部区域向其外边缘移动时,检测光束21的照射位置是否已经通过盘100的外边缘以进行寻道操作; 以及控制部分40,用于使透镜22通过致动器从光盘100缩回,并且如果已经感测到光束21的照射位置,并且使得拾取器6由传送台11朝向盘的内部区域移动 已经通过盘100的外边缘。