| 摘要 |
PURPOSE: A system for storing a holographic data is provided to simplify the composition of an optical system using a beam magnifier and a shielding film. CONSTITUTION: A system for storing a holographic data includes a beam magnifier(110) magnifying a beam incident from a light source(100) and emitting a standard beam(R) and an object beam(O), a mirror(130), a space beam modulator(200), a storing media(140), a shutter(160), and a CCD(Charge Coupled Device)(150). The mirror positions on a beam path of a half of a beam incident from the beam magnifier and inputs a half of the beam incident from the beam magnifier as a standard beam. The space beam modulator is that a shielding film shielding a beam incident to the boundary part between the object beam and the standard beam is formed and that positions on a beam path of a half of a beam incident from the beam magnifier. The storing media positions on a beam path on which the standard beam incident from the mirror and the object beam incident through the space beam modulator is crossed, and restores and revives a recorded interference pattern by scanning of the standard beam. The shutter positions on a beam path of a half of the beam incident from the beam magnifier and shields the object beam incident from the beam magnifier. The CCD positions on a beam path of an interference pattern, and converts the interference pattern to an electrical signal.
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