公开(公告)号：US20090080306A1

公开(公告)日：2009-03-26

申请号：US12325482

申请日：2008-12-01

申请人： Takeyoshi Kataoka ,  Matoyuki Suzuki

发明人： Takeyoshi Kataoka ,  Matoyuki Suzuki

IPC分类号： G11B20/18

CPC分类号： G11B19/127 ,  G11B7/0945 ,  G11B7/13925 ,  G11B2007/0006

摘要： An optical disk discriminating method and an optical disk device which can detect reflected rays for making discrimination among kinds of optical disks with high accuracies. By switching a plurality of lasers and moving a spherical aberration corrector while moving an objective lens to cause it to approach or keep away from an optical disk, rays reflected light from the optical disk can be detected with high accuracies. Discrimination among the kinds of a plurality of optical disks can be made on the basis of signals generated from the detected reflected rays. This ensures that the kind of an optical disk can be determined through one operation of sweeping.

摘要翻译： 一种光盘识别方法和光盘装置，其可以高精度地检测用于判别光盘的反射光线。 通过在移动物镜以使其接近或远离光盘的同时切换多个激光器并移动球面像差校正器，可以以高精度检测来自光盘的反射光。 可以基于从检测到的反射光线产生的信号来对多种光盘的种类进行区分。 这确保了通过扫描的一个操作来确定光盘的种类。