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 from the data page. The imaged data page comprises imaged data bits (a, b, c, d) having a first size (s1) in a direction (D). The device comprises means for detecting (114) the imaged data page. The detecting means comprise detector elements having a second size (s2) in the direction (D). The second size is larger than the first size. The device comprises displacement means (200) for displacing the imaged data page in the direction (D) with respect to the detecting means so as to scan the imaged data page. |