发明申请
- 专利标题： HOLOGRAPHIC RECORDING METHOD, AND RECORDING AND REPRODUCTION APPARATUS
- 专利标题（中）： 全息记录方法，记录和再现装置
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申请号： US13684435申请日： 2012-11-23
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公开(公告)号： US20130077457A1公开(公告)日： 2013-03-28
- 发明人: Takashi Usui , Kazuo Watabe , Hideaki Okano
- 申请人： Takashi Usui , Kazuo Watabe , Hideaki Okano
- 主分类号： G11B7/0065
- IPC分类号： G11B7/0065
摘要：
In one embodiment, a method is disclosed for recoding information in form of a hologram. The method can generate a displacement signal by detecting a displacement of a holographic recording medium. The method can perform an exposure control operation that, if the sampling value of the displacement signal falls within an allowable displacement range, records the information item in the holographic recording medium, and if the sampling value of the displacement signal falls outside the allowable displacement range, blocks or reduces at least one of the information light and the reference light to a light intensity with which the information item is not recorded in the holographic recording medium.