Invention Grant
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
- Patent Title: Hologram recording method, hologram recording device, hologram playback method, and optical recording medium
- Patent Title (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
-
Application No.: US11493611Application Date: 2006-07-27
-
Publication No.: US07557970B2Publication Date: 2009-07-07
- Inventor: Makoto Furuki , Katsunori Kawano , Shin Yasuda , Jiro Minabe , Koichi Haga , Yasuhiro Ogasawara , Kazuhiro Hayashi , Hisae Yoshizawa
- Applicant: Makoto Furuki , Katsunori Kawano , Shin Yasuda , Jiro Minabe , Koichi Haga , Yasuhiro Ogasawara , Kazuhiro Hayashi , Hisae Yoshizawa
- Applicant Address: JP Tokyo
- Assignee: Fuji Xerox Co., Ltd.
- Current Assignee: Fuji Xerox Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Oliff & Berridge, PLC
- Priority: JP2006-044222 20060221
- Main IPC: G03H1/12
- IPC: G03H1/12

Abstract:
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.
Public/Granted literature
Information query