利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

36 条记录 (耗时 0.018 秒)

    Optical memory and information processing apparatus
    26.
    发明公开
    Optical memory and information processing apparatus 失效
    Optisches Speicher- undInformationsverarbeitungsgerät。

    公开(公告)号：EP0430162A2

    公开(公告)日：1991-06-05

    申请号：EP90122641.5

    申请日：1990-11-27

    申请人： HITACHI, LTD.

    发明人： Maeda, Yoshihito ,  Ikuta, Isao ,  Nagai, Masaichi ,  Kato, Yoshimi ,  Andoh, Hisashi ,  Tsuboi, Nobuyoshi ,  Minemura, Hiroyuki ,  Sugita, Tatsuya ,  Sato, Yoshio ,  Sugita, Yutaka

    IPC分类号： G11B7/00 ,  G11B7/24 ,  G11B7/125

    CPC分类号： G11B7/24 ,  G11B23/0313

    摘要： The invention relates to an optical memory in which an optical recording medium (3) is built in a case (1), and also to a memory apparatus. Recording, reproducing and erasing operations are performed by irradiating light via a transparent portion of the case (1) onto the built-in optical recording medium (3). The optical recording medium (3) built in the case (1) has face vibrations with respect to the case (1), because it is moved within the case (1). The present invention is characterized by employing such a construction for optically mitigating irregular fluctuation in reflectivity caused by this face vibration. In the optical memory of the present invention, the reflectivity fluctuation caused by an interference effect made between reflection light from the case (1) and air, and also reflection light from the optical recording medium (3) and air due to the relative deviation in the face vibrations, may be reduced by antireflection films (2a, 2b) provided in the case (1) and the optical recording medium (3). In a memory apparatus of the present invention, the above-described memory is mounted, the fluctuation in the reflectivity is monitored and laser power is varied in order to further mitigate the reflection vibrations.

    摘要翻译： 本发明涉及一种光学存储器，其中光学记录介质（3）内置在壳体（1）中，并且还涉及一种存储装置。 通过将外壳（1）的透明部分照射到内置光学记录介质（3）上来进行记录，再现和擦除操作。 内装在壳体（1）中的光记录介质（3）由于在壳体（1）内移动而具有相对于壳体（1）的面振动。 本发明的特征在于采用这种结构，用于光学地减轻由这种面部振动引起的反射率的不规则波动。 在本发明的光学存储器中，由壳体（1）的反射光和空气之间的干涉效应以及来自光记录介质（3）的反射光和由于相对偏离的空气引起​​的反射率波动 可以通过设置在壳体（1）和光学记录介质（3）中的防反射膜（2a，2b）来减少面部振动。 在本发明的存储装置中，安装上述存储器，监视反射率的波动，改变激光功率，以进一步减轻反射振动。

    Recording Material
    27.
    发明公开
    Recording Material 失效
    录音材料

    公开(公告)号：EP0136801A2

    公开(公告)日：1985-04-10

    申请号：EP84305743.1

    申请日：1984-08-22

    申请人： HITACHI, LTD.

    发明人： Minemura, Tetsuro ,  Ando, Hisashi ,  Ikuta, Isao ,  Kita, Yoshiaki

    IPC分类号： G11B7/24

    CPC分类号： G11B7/243 ,  G11B2007/24308 ,  Y10S430/146

    摘要： A recording material made of an alloy capable of exhibiting different spectral reflectances at an equal temperature, depending on a heating-cooling cycle to which the alloy is subjected. The alloy can possess in solid state different crystal structures at a first temperature higher than the room temperature and at a second temperature lower than the first temperature but not lower than the room temperature. A part of the surface of the alloy exhibits, as a result of being quenched from the first temperature, a crystal structure which is different from the crystal structure at the second temperature, while the other part possesses the crystal structure at the second temperature, so that these two parts exhibit different spectral reflectances. Using this recording medium, it is possible to record, reproduce and erase information by means of, for example, laser beams.

    摘要翻译： 根据合金所经受的加热 - 冷却循环，合金制成的记录材料可以在相同的温度下显示不同的光谱反射率。 该合金可以在高于室温的第一温度和低于第一温度但不低于室温的第二温度下以固态存在不同的晶体结构。 合金表面的一部分由于从第一温度淬火而表现出与第二温度下的晶体结构不同的晶体结构，而另一部分在第二温度下具有晶体结构，因此 这两个部分表现出不同的光谱反射率。 使用这种记录介质，可以借助于例如激光束来记录，再现和擦除信息。