发明授权
- 专利标题： Hologram recording apparatus and hologram reconstruction apparatus
- 专利标题（中）： 全息记录装置和全息图重建装置
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申请号： US11684441申请日： 2007-03-09
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公开(公告)号： US08072660B2公开(公告)日： 2011-12-06
- 发明人: Mitsuru Toishi , Masaaki Hara
- 申请人： Mitsuru Toishi , Masaaki Hara
- 申请人地址： JP Tokyo
- 专利权人： Sony Corporation
- 当前专利权人： Sony Corporation
- 当前专利权人地址： JP Tokyo
- 代理机构： K&L Gates LLP
- 优先权： JP2006-065756 20060310; JP2006-134436 20060512
- 主分类号： G03H1/12
- IPC分类号： G03H1/12
摘要：
A hologram recording apparatus includes a signal-beam spatial light modulating section, a reference-beam spatial light modulating section, and a control unit. A signal beam pattern generates a signal beam. A reference beam pattern generates a reference beam. The control unit controls the shapes of the two beam patterns. A data-recording signal beam pattern is displayed on the signal-beam spatial light modulating section and a data-recording reference beam pattern is displayed on the reference-beam spatial light modulating section so that a data-recording hologram is formed in a predetermined area of a holographic recording medium. An encryption signal beam pattern for encrypting the data-recording hologram is displayed on the signal-beam spatial light modulating section and an encryption reference beam pattern is displayed on the reference-beam spatial light modulating section so that an encryption hologram is formed in the same area as the predetermined area of the holographic recording medium.
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