METHOD FOR FABRICATING DOUBLE SIDE DVD-COMPATIBLE HOLOGRAPHIC ROM DISK AND DISK STRUCTURE

摘要

The present invention relates to a manufacturing method and a holographic disc structure, a double-sided DVD compatible holographic ROM disk . That is , the present invention proposes a DVD compatible holographic romyong sided disk structure to extend the conventional holographic disk recording capacity compared to single-sided to double and increasing the utilization of the disc , also depending on the laser wavelength in the structure of a DVD -compatible holographic disk selectively transmitting or by reducing the data production step of the holographic disk by installing a dichroic reflecting layer having a reflection function as a first step in a two-phase , alone increases the throughput of the graphics ROM disk , it is possible to reduce the production cost disk .