Optical information recording medium and method for initializing the same
    5.
    发明授权
    Optical information recording medium and method for initializing the same 失效
    光信息记录介质及其初始化方法

    公开(公告)号:US06807142B1

    公开(公告)日:2004-10-19

    申请号:US09786700

    申请日:2001-05-25

    IPC分类号: G11B724

    CPC分类号: G11B7/24038 G11B7/268

    摘要: An optical information recording medium including a first and second information layers is provided with an area where only the first information layer, which is provided nearer a substrate, exists, and initialization using a laser beam is started from this area. In an area where the second information layer exists, the first information layer is initialized after the second information layer is initialized. Alternatively, the first and second information layers are initialized at the same time by a flash light with adjusted emission time, emission energy, and the like. The first information layer is initialized after the second information layer is initialized by radiating a plurality of flash lights.

    摘要翻译: 包括第一信息层和第二信息层的光学信息记录介质设置有仅存在靠近基板的第一信息层,并且从该区域开始使用激光束的初始化的区域。 在存在第二信息层的区域中,在第二信息层被初始化之后,初始化第一信息层。 或者,通过具有调节的发射时间,发射能量等的闪光同时初始化第一和第二信息层。 在通过辐射多个闪光灯来初始化第二信息层之后,初始化第一信息层。

    Optical information recording medium
    7.
    发明授权
    Optical information recording medium 失效
    光信息记录介质

    公开(公告)号:US5410534A

    公开(公告)日:1995-04-25

    申请号:US77374

    申请日:1993-06-17

    IPC分类号: G11B7/005 G11B7/24 G11B3/70

    CPC分类号: G11B7/24 G11B7/0051

    摘要: In an optical recording medium having concave and convex type signal pits formed on a substrate surface, a reflection layer is formed on the signal pits in such a manner that a reflection index of an interior of the signal pits is higher than a reflection index at a periphery of the signal pits with respect to a given reproduction laser beam wavelength. In an optical recording medium having a phase change recording layer which reversibly changes optical states upon application of laser energy, a structural phase difference between a reflection beam of non-recorded regions and a reflection beam of recorded regions of the optical recording medium with respect to the wavelength of a reproduction laser beam is in a range of (0.5-1.5)+2 n.pi. radians, where n is an integer. The phase change recording layer has principle components of Ge-Sb-Te or Sb-Se.

    摘要翻译: 在形成在基板表面上的具有凹凸型信号凹坑的光记录介质中,在信号凹坑上形成反射层,使得信号凹坑内部的反射指数高于信号凹坑内部的反射指数 信号的周边相对于给定的再现激光束波长凹坑。 在具有在施加激光能量时可逆地改变光学状态的相变记录层的光学记录介质中,非记录区域的反射光束和光学记录介质的记录区域的反射光束之间的结构相位差相对于 再现激光束的波长在(0.5-1.5)+2n pi弧度的范围内,其中n是整数。 相变记录层具有Ge-Sb-Te或Sb-Se的主要成分。