利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

15 条记录 (耗时 0.016 秒)

    Phase change type optical disk
    12.
    发明公开
    Phase change type optical disk 失效
    Optische Platte vom Phasenwechseltyp。

    公开(公告)号：EP0683485A1

    公开(公告)日：1995-11-22

    申请号：EP95107697.5

    申请日：1995-05-19

    申请人： NEC CORPORATION

    发明人： Okada, Mitsuya ,  Ohkubo, Shuichi ,  Ide, Tatsunori

    IPC分类号： G11B7/24 ,  G11B7/00

    CPC分类号： G11B7/252 ,  G11B7/006 ,  G11B7/24 ,  G11B7/2534 ,  G11B7/257 ,  G11B7/2585 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/25706 ,  G11B2007/2571 ,  G11B2007/25715 ,  G11B2007/25716

    摘要： A phase change type optical disk includes a transparent substrate (1), a recording layer (3), a first transparent protection layer (4), a reflective layer (5), and a transparent interference layer (6). The recording layer (3) is formed above the transparent substrate (1) to cause a reversible phase change between a crystalline state and an amorphous state. The recording layer (3) causes a phase change upon being irradiated with a laser beam, thereby recording, reproducing, and erasing information. The first transparent protection layer (4) is formed on the recording layer (3) to protect the recording layer. The reflective layer (5) is formed above the recording layer to reflect light transmitted through the recording layer and causes the reflected light to be incident on the recording layer. The transparent interference layer (6) is formed between the first protection layer (4) and the reflective layer (5) to cause light beams reflected by the reflective layer to optically interfere with each other. Light transmitted through the recording layer is multiple-reflected between the reflective layer and an interface between the interference layer and the first protection layer.

    摘要翻译： 相变型光盘包括透明基板（1），记录层（3），第一透明保护层（4），反射层（5）和透明干涉层（6）。 记录层（3）形成在透明基板（1）的上方，从而在结晶状态和非晶状态之间产生可逆的相变。 记录层（3）在用激光束照射时引起相变，从而记录，再现和擦除信息。 第一透明保护层（4）形成在记录层（3）上以保护记录层。 反射层（5）形成在记录层上方，以反射透过记录层的光，并使反射光入射在记录层上。 透明干涉层（6）形成在第一保护层（4）和反射层（5）之间，以使由反射层反射的光束彼此光学地干涉。 透过记录层的光在反射层与干涉层与第一保护层之间的界面之间多次反射。

    Optical data recording media and method for recording and erasing data on the same
    14.
    发明公开
    Optical data recording media and method for recording and erasing data on the same 失效
    光学数据记录介质和方法记录并在其上的数据擦除。

    公开(公告)号：EP0549901A1

    公开(公告)日：1993-07-07

    申请号：EP92120315.4

    申请日：1992-11-27

    申请人： NEC CORPORATION

    发明人： Ide, Tatsunori

    IPC分类号： G11B7/00 ,  G11B7/24

    CPC分类号： G11B7/24 ,  G11B7/0055 ,  G11B7/006 ,  G11B7/24079

    摘要： In an optical data recording media provided with a recording layer which changes its optical characteristics by the difference of heat history of heating and cooling by the irradiation of the laser light to a transparent substrate on which tracking channels have been formed, the width of extruded or concave region formed by the tracking channels on the substrate is narrower than the diameter of the laser beam being used for recording, erasing and reading.
    Thereby, problem which is associated with the recording frequency-dependent erasing efficiency in case the pulse width modulation method is used as the modulation method, can be dissolved.

    摘要翻译： 在光学数据记录提供有记录层，其通过激光光的照射通过加热和冷却的热历史的不同改变其光学特性，以在其上跟踪信道的透明基板媒体havebeen形成的挤出的宽度或 由跟踪信道在基板上的凹区域窄于被用于记录，擦除和读出的激光束的直径。 由此，所有的问题，其与在壳体的脉冲宽度调制方法来作为调制方法的记录频率依赖性擦除效率有关，可以溶解。