| 摘要 |
The invention relates to an optical holographic device for reading out a data page recorded in a holographic medium (202). The data page comprises data bits. The device comprises means (200) for producing a radiation beam having an intensity, means (201) for directing the radiation beam towards the holographic medium so as to image the data page, means (203) for detecting a set of imaged data bits in the imaged data page, means (204) for counting, among the set of imaged data bits, the number of imaged data bits having a predetermined data state and means (205) for modifying the intensity as a function of this number. |
