Optical memory and information processing apparatus
    4.
    发明授权
    Optical memory and information processing apparatus 失效
    光存储器和信息处理装置

    公开(公告)号:US5371730A

    公开(公告)日:1994-12-06

    申请号:US618980

    申请日:1990-11-28

    CPC分类号: G11B7/24 G11B23/0313

    摘要: The invention relates to an optical memory in which an optical recording medium is built in a case, and also to a memory apparatus. Recording, reproducing and erasing operations are performed by irradiating light via a transparent portion of the case onto the built-in optical recording medium. The optical recording medium built in the case has face vibrations with respect to the case, because it is moved within the case. 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 and air, and also reflection light from the optical recording medium and air due to the relative deviation in the face vibrations, may be reduced by antireflection films provided in the case and the optical recording medium. In a memory apparatus of the present invention, the abovedescribed 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,其中光学记录介质被构建在壳体中,并且还涉及一种存储装置。 通过将壳体的透明部分照射到内置光学记录介质上来进行记录,再现和擦除操作。 因为在壳体内移动,所以内置在该壳体内的光记录介质面对壳体的振动。 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,由于来自壳体的反射光和空气之间的干涉效应引起的反射率波动,以及由于面部振动的相对偏离而来自光学记录介质和空气的反射光,可以是 由设置在壳体中的防反射膜和光记录介质所减少。 在本发明的存储装置中,安装上述存储器,监测反射率的波动,改变激光功率,以进一步减轻反射振动。

    Optical beam scanning system with rotating beam compensation
    7.
    发明授权
    Optical beam scanning system with rotating beam compensation 失效
    具有旋转光束补偿的光束扫描系统

    公开(公告)号:US5668590A

    公开(公告)日:1997-09-16

    申请号:US253553

    申请日:1994-06-03

    IPC分类号: B41J2/47

    CPC分类号: B41J2/471

    摘要: An optical arrangement for an optical scanning apparatus which can record a plurality of high precision information concurrently, provides for a laser beam emitted from a single light source to be polarized in two polarization directions, and each of the two polarized beams is further imparted with different information according to its polarization direction. Then, the two polarized beams are used for scanning over a photosensitive member to concurrently record respective information at different positions on the photosensitive member. In order to suppress induced light fluctuation depending on an incident angle of light on the beam splitter, an optical rotation means is provided in the optical system, such that a desired optical rotation control can be obtained corresponding to the incident angle on the beam splitter, so as to compensate for the fluctuation of light whereby the beam splitter can be arranged to be free of the influence of the incidence angle of the beam.

    摘要翻译: 用于同时记录多个高精度信息的光学扫描装置的光学装置提供从单个光源发射的激光束,以在两个偏振方向上被偏振,并且两个偏振光束中的每一个进一步被赋予不同的 信息根据其偏振方向。 然后,两个偏振光束用于在感光部件上进行扫描,以在感光部件上的不同位置同时记录各自的信息。 为了抑制根据分束器上的入射角的感应光波动,在光学系统中设置有旋转装置,使得可以根据分束器上的入射角获得期望的光旋转控制, 以补偿光的波动,从而可以将分束器布置成不受光束入射角的影响。