Invention Grant
- Patent Title: Holographic recording apparatus, holographic reproducing apparatus, holographic recording method and holographic reproducing method
- Patent Title (中): 全息记录装置,全息再现装置,全息记录方法和全息再现方法
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Application No.: US12024151Application Date: 2008-02-01
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Publication No.: US08014255B2Publication Date: 2011-09-06
- Inventor: Katsunori Kawano , Makoto Furuki , Jiro Minabe
- Applicant: Katsunori Kawano , Makoto Furuki , Jiro Minabe
- Applicant Address: JP Tokyo
- Assignee: Fuji Xerox Co., Ltd.
- Current Assignee: Fuji Xerox Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2007-168622 20070627
- Main IPC: G11B7/00
- IPC: G11B7/00

Abstract:
A holographic recording apparatus is provided and includes: a signal light generation section that generates signal light modulated according to digital data; a reference light generation section that generates reference light modulated by means of a pixel pitch; a adding section that adds, in proximity to a light-convergence position where the signal light and the reference light come close to each other or overlap each other, a low-order component of the signal light obtained by Fourier transform and a high-order component of the reference light obtained by Fourier transform, the high-order component of the reference light having a spatial frequency region differing from that of the low-order component of the signal light; and an illumination optical system that irradiate an optical recording medium with the added signal and reference light.
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