发明授权
US07557970B2 Hologram recording method, hologram recording device, hologram playback method, and optical recording medium
有权
全息记录方法,全息记录装置,全息图再现方法和光记录介质
- 专利标题: Hologram recording method, hologram recording device, hologram playback method, and optical recording medium
- 专利标题(中): 全息记录方法,全息记录装置,全息图再现方法和光记录介质
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申请号: US11493611申请日: 2006-07-27
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公开(公告)号: US07557970B2公开(公告)日: 2009-07-07
- 发明人: Makoto Furuki , Katsunori Kawano , Shin Yasuda , Jiro Minabe , Koichi Haga , Yasuhiro Ogasawara , Kazuhiro Hayashi , Hisae Yoshizawa
- 申请人: Makoto Furuki , Katsunori Kawano , Shin Yasuda , Jiro Minabe , Koichi Haga , Yasuhiro Ogasawara , Kazuhiro Hayashi , Hisae Yoshizawa
- 申请人地址: JP Tokyo
- 专利权人: Fuji Xerox Co., Ltd.
- 当前专利权人: Fuji Xerox Co., Ltd.
- 当前专利权人地址: JP Tokyo
- 代理机构: Oliff & Berridge, PLC
- 优先权: JP2006-044222 20060221
- 主分类号: G03H1/12
- IPC分类号: G03H1/12
摘要:
A hologram recording method, which records signal light onto an optical recording medium as a hologram, includes: placing a signal light region, which generates signal light, and a reference light region, which generates reference light, symmetrically with respect to an optical axis of coherent light by displaying, on a spatial light modulator which spatially modulates the incident coherent light, a pattern which divides a modulating region into a plurality of regions; generating signal light and reference light by modulating the incident coherent light by the spatial light modulator; simultaneously and coaxially illuminating, onto a reflecting-type optical recording medium, the signal light and the reference light generated from the signal light region and the reference light region disposed symmetrically to one another; and recording the signal light on the optical recording medium as a hologram.
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