| 摘要 |
PURPOSE:To decrease the irregular reflecting components of the reflected light at the boundary face between a light reflecting layer and a auxiliary recording layer of the medium having the light reflecting layer and the auxiliary recording layer by forming the light absorbing layer of porous materials having different porosities and providing the dense part having the smaller porosity so as to face the light reflecting layer. CONSTITUTION:The light reflecting layer 2 is provided on the substrate 1 and the auxiliary recording layer 3 having the asymmetrical structure consisting of the porous materials having the different porosities is formed thereon. The layer 2 is so laminated that the dense part of the porous materials of the small porosity formed on a resin film or a high-polymer layer comes into contact with the layer 2. A protective layer 5 is then adhered thereon via an adhesive layer 4. The irregular reflection components at the boundary face of the layer 2 and the layer 3 are thereby decreased and the generation of rims is decreased. |
