| 摘要 |
PROBLEM TO BE SOLVED: To provide an optically flat hologram recording medium by previously preparing a photosetting resin which shrinks low on curing to a sheet form, using the sheet as a hologram recording layer and by adjusting the parallelism between holding plate by an optical flat plate. SOLUTION: The cure shrink of the hologram recording layer is adjusted to≥1.0% and the portion not participating recording is cured, by which the thickness of the recording layer can be maintained constant and since the influence of the external environment, such as humidity and oxygen, can be reduced, the stable recording characteristics can be obtained. Further, the peripheral edges of the recording layer cure to suppress the creep of the recording layer in an uncured state and therefore the inclination (parallelism) between the holding substrates which are of problem in the hologram recording to be read out by utilizing hologram interference can be maintained constant. COPYRIGHT: (C)2004,JPO
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