| 摘要 |
PROBLEM TO BE SOLVED: To provide a hologram reproduction apparatus capable of reproducing hologram information precisely by reducing influence of a variation factor. SOLUTION: The hologram reproduction apparatus is provided with a light source for emitting reference light, a two-dimensional image sensor 30 which receives reproduced light obtained by irradiating a recording medium with the reference light, a memory 12 in which luminance information on the predetermined area of the recording medium is stored, an offset calculation circuit 13 which calculates the offset of luminance information outputted from the two-dimensional image sensor 30 on the basis of the luminance information outputted from the two-dimensional image sensor 30 when the predetermined area is irradiated with the reference light and the luminance information stored in the memory 12. The hologram reproduction apparatus reproduces the recording medium by performing predetermined correction by use of the offset. COPYRIGHT: (C)2009,JPO&INPIT
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