| 摘要 |
PURPOSE:To obtain an optical recording medium, which has excellent light resistance and in which pit mismatching is difficult to be generated and a flow is difficult to be generated on the surface of the medium, by forming a silicon oxide film on the external surface and/or internal surface of a light-transmitting substrate. CONSTITUTION:An optical recording medium 1 is composed of a light- transmitting substrate 11, a silicon oxide film 51 formed on the external surface of the substrate 11, a silicon oxide film 55 shaped on the internal surface of the substrate 11 and a dyestuff recording film formed onto the silicon oxide film 55. The intrusion of oxygen and steam from the outside can be prevented by forming the silicon oxide film 51. Even the generation of the surface flaw of the substance 11 can be obviated. The silicon oxide film 51 is formed through a vacuum thin-film forming method such as a sputtering method, an ion plating method, etc. On the other hand, a recording film 21 is shaped onto the silicon oxide film 55 formed on the internal surface of the substance 11 in the same method. |
