知搜-全球专利检索

  1. 登录
  2. 注册
发明公开
CN105518781A 全息图再现装置、全息图再现方法 失效 - 权利终止

全息图再现装置、全息图再现方法
摘要：
提供一种适于对全息图进行再现的全息图再现装置、全息图再现方法。通过对光信息记录介质照射参考光来再现信息信号的全息图再现装置，包括：偏振变换部，对在上述光信息记录介质上照射上述参考光时产生的衍射光的偏振进行变换；受光部，接收由上述偏振变换部进行了偏振变换的衍射光；和伺服信号生成电路部，使用由上述受光部接收到的衍射光，生成使上述光信息记录介质或上述偏振变换部移动的信号。通过使用该全息图再现装置和上述全息图再现装置的全息图再现方法能够实现上述目的。
摘要（英）：

The purpose of the present invention is to provide a hologram reproducing apparatus and a hologram reproducing method, which are suitable for reproducing hologram. The purpose can be achieved by means of a hologram reproducing apparatus, which reproduces information signals by irradiating an optical information recording medium with reference light, and a hologram reproducing method for the hologram reproducing apparatus. The hologram reproducing apparatus is characterized in being provided with: a polarization conversion section, which converts polarization of diffracted light that is generated when the optical information recording medium is irradiated with the reference light; a light receiving section, which receives the diffracted light having the polarization thereof converted by means of the polarization conversion section; and a servo signal generating circuit section, which generates signals for moving the optical information recording medium or the polarization conversion section using the diffracted light received by means of the light receiving section.

公开/授权文献
0/0