ALIGNMENT OF HOLOGRAPHIC IMAGE ON DETECTOR

摘要

The invention relates to an optical holographic device for reading out a data page recorded in a holographic medium (106). The device comprises means (104, 105) for forming an imaged data page, means for detecting (114) the imaged data page, means for detecting a Moiré pattern in the detected imaged data page and means for modifying the imaged data page as a function of the Moiré pattern.