Optical information recording/reproducing apparatus and optical information recording/reproducing method
    1.
    发明授权
    Optical information recording/reproducing apparatus and optical information recording/reproducing method 有权
    光信息记录/再现装置和光信息记录/再现方法

    公开(公告)号:US09076461B2

    公开(公告)日:2015-07-07

    申请号:US14244620

    申请日:2014-04-03

    IPC分类号: G11B7/00 G11B7/0065 G11B7/126

    CPC分类号: G11B7/0065 G11B7/126

    摘要: An optical information recording/reproducing apparatus for recording an interference pattern between signal light and reference light information-multiplexed as a hologram in an optical information recording medium and for reproducing information recorded in the optical information recording medium on the basis of the recorded hologram with use of the reference light. The apparatus includes a light source for emitting light and a coherency controller for controlling a coherency of the light source. The apparatus controls the coherency controller in such a manner as to switch between a coherency required in a recording mode and a coherency required in a reproducing mode.

    摘要翻译: 一种光学信息记录/再现装置,用于将信号光和作为全息图信息多路复用的参考光之间的干涉图案记录在光学信息记录介质中,并且用于根据所记录的全息图再现记录在光学信息记录介质中的信息 的参考光。 该装置包括用于发光的光源和用于控制光源一致性的一致性控制器。 该装置以这样一种方式来控制一致性控制器,即在记录模式中所需的一致性和再现模式中所需的一致性之间进行切换。