发明申请
- 专利标题： REPRODUCTION DEVICE AND REPRODUCTION METHOD
- 专利标题（中）： 复制设备和复制方法
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申请号： US12538318申请日： 2009-08-10
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公开(公告)号： US20100060960A1公开(公告)日： 2010-03-11
- 发明人: Kenji Tanaka , Koji Takasaki , Kazutatsu Tokuyama , Atsushi Fukumoto , Hidenori Mori , Yoshiki Okamoto
- 申请人： Kenji Tanaka , Koji Takasaki , Kazutatsu Tokuyama , Atsushi Fukumoto , Hidenori Mori , Yoshiki Okamoto
- 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
- 优先权： JP2008-231362 20080909
- 主分类号： G03H1/12
- IPC分类号： G03H1/12 ; G03H1/22 ; G03H1/14
摘要：
A reproduction device includes a light-emitting unit that emits reference light and coherent light, which is generated so as to have uniform light intensity and uniform phase, onto a hologram recording medium on which data is recorded by an interference pattern of signal light and the reference light, and a light-attenuating unit that attenuates the light intensity of the coherent light.
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