APPARATUS FOR REPRODUCTING HOLOGRAPHIC ROM DISK BY USING A MASTER DISK

摘要

The present invention relates to a holographic ROM disk reproduction device using the master disk, having a first wavelength a light source that generates a planar wave form of the first signal light, and injecting a second wavelength to the photosensitive material having a dopant of the second signal light and the recording material layer to both responsive to the first signal, the first signal light is installed on the path of the first signal light a disk for recording and for transmitting, to the reaction one first signal a second signal light that does not react with the dopant is introduced into the photosensitive material of the recording material layer, while the interference pattern is recorded by a second signal light on a path of the first signal light comprises a master disk is placed in the rear of the disk for recording; And characterized in that the first signal is to be reproduced is generated is diffracted by the interference pattern of the master disk, the light is incident on the disk for recording the interference pattern on the first recording material for the recording layer of the disk by the signal light and the reproduction light replication, By contrast the factory to prevent dopant of the master disc for burning to a disc without having to perform a post-exposure or fixing process is replicated in the master ROM disk of the characteristics of the disk changes, improving the yield of the graphics alone Rom disc manufacturing and replication tasks There are benefits.