| 摘要 |
PURPOSE:To effectively prevent deterioration by photoirradiation of the optical information recording medium having a light absorptive reflection layer contg. an org. dye. CONSTITUTION:A 1st oxygen diffusion preventive layer 2, the light absorptive reflection layer 3 contg. the org. dye and a 2nd oxygen diffusion preventive layer 4 are successively laminated. The infiltration of the oxygen diffusing through a substrate 1 is prevented by the 1st oxygen diffusion preventive layer and the infiltration of the oxygen diffusing from the atm. into the light absorptive reflection layer 3 is prevented by the 2nd oxygen diffusion preventive layer 4. Since the org. dye in the light absorptive reflection layer 3 is isolated from the oxygen, the photodeterioration thereof is effectively prevented. |
