Hologram recording method and hologram recording apparatus
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United States of America Patent
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Issued Date -
Dec 2, 2004
app pub date -
Mar 25, 2004
filing date -
May 26, 2003
priority date (Note) -
Abandoned
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Abstract
Quality of a reproduced light beam is improved, and rewriting and recording are performed at high speed without erasing data. Each page of a hologram is newly recorded so that the maximum point of diffraction light beam intensity in reproducing the newly recorded hologram is located at a position where diffraction light beam intensity from a data page of a hologram which has been previously recorded in a hologram recording medium is minimized at the time of reproducing the data.
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