发明授权
- 专利标题： Holographic recording apparatus, holographic reproducing apparatus and holographic recording and reproducing apparatus
- 专利标题（中）： 全息记录装置，全息再现装置和全息记录和再现装置
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申请号： US12048876申请日： 2008-03-14
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公开(公告)号： US07839750B2公开(公告)日： 2010-11-23
- 发明人: Shogo Horinouchi , Shohei Inoue , Hideaki Horio
- 申请人： Shogo Horinouchi , Shohei Inoue , Hideaki Horio
- 申请人地址： JP Osaka
- 专利权人： Panasonic Corporation
- 当前专利权人： Panasonic Corporation
- 当前专利权人地址： JP Osaka
- 代理机构： Dickinson Wright PLLC
- 优先权： JP2007-068415 20070316
- 主分类号： G11B7/00
- IPC分类号： G11B7/00
摘要：
A holographic recording apparatus causes reference light and information light to interfere with each other, and records the interference pattern in a recording medium. The holographic recording apparatus has an objective lens and a focus position controller. The objective lens focuses both the reference light and the information light at a focus position of the recording medium. The focus position controller changes the focus position into a predetermined position on the light path of the reference light.
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