Hologram reconstructing apparatus and hologram reconstructing method

摘要

A hologram reconstructing apparatus configured to irradiate a hologram recording medium that stores an interference pattern of a signal beam spatially modulated by data displayed on a spatial modulator and a reference beam emitted simultaneously with the signal beam with a reconstructing reference beam and to reconstruct data by capturing a reconstruction signal beam generated at the hologram recording medium being irradiated includes an image pickup unit that receives a partial reconstruction signal beam that constitutes part of the reconstruction signal beam by a full light-receiving plane; and a moving unit that relatively move the light-receiving surface of the image pickup means within an irradiation range of the reconstruction signal beam. All information included in the reconstruction signal beam is reconstructed by receiving the reconstruction signal beam corresponding to the entire irradiation range by relatively moving the image pickup means within the irradiation range of the reconstruction signal beam.