| 摘要 |
PROBLEM TO BE SOLVED: To enhance selectivity and ornamental effect by sticking holograms transparent to laser beams for reading to disk substrates of a double-sided DVD (digital video disk) formed by sticking two sheets of the disk substrates transferred with information to each other. SOLUTION: The disk 10 is manufactured by sticking two sheets of the disk substrates transferred with the information to each other. The labels 24 consisting of the volume holograms which have the high transmittance of the laser beams for reading out of the disk 10 but reproduce the recorded images of the colors sensible by the human eyes are adhered to one or both surfaces of two sheets of the disk substrates of the doughnut shape disk 10. |
