| 摘要 |
PURPOSE:To obtain an optical recording medium which is stable and has favorable recording characteristics, by a method wherein a layer comprising a specific naphthoquinone coloring matter or a metallic complex thereof as a main constituent is provided as a recording layer of an optical recording medium, and layers of a porpline type compound are provided respectively on both sides of the recording layer. CONSTITUTION:A porpline type compound, a naphthoquinone coloring matter or a metallic complex thereof and the porphine type compound are sequentially vapor-deposited on a base 10 formed of a glass, an aluminum alloy, a synthetic resin or the like to provide layers 20, 30, 40. The naphthoquinone compound may be 5-amino-8-(subst. anilino)-2,3-dicyano-1,4-naphthoquinone coloring matter or 5,8-(subst. anilino)-2,3-dicyano-1,4-naphthoquinone coloring matter. The porphine type compound may be a metal-phthalocyanine, a phthalocyanine compound having Li, Na or the like as a center atom, or the like. The recording medium thus obtained can be provided with pits 60 speedily and with a small amount of energy. |
