| 摘要 |
PURPOSE:To enhance the reflectance of a tellurium type optical recording film and to improve the shape of a pit by providing a metallic layer having a high reflectance than the optical recording layer and having a specified m.p. on or under the optical layer or on both sides of the layer. CONSTITUTION:The metallic film having a higher reflectance than the optical recording layer and having 500-800 deg.C m.p. is provided on or under the optical recording layer or on both sides of the layer. Consequently, the reflectance of the optical recording medium is enhanced, and the shape of the pit can be improved. When the metallic layer having a high reflectance is provided on or under the optical recording layer consisting essentially of Te to correct the reflectance, the optical recording film can be thinned to an appropriate thickness. A metal having the m.p. in the range 500-800 deg.C is appropriately used for correcting the reflectance. When the m.p. is too high, the metal is difficult to bore, and a metal having a low m.p. and simultaneously an appropriate reflectance can not be found. |
