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    • 4. 发明授权
    • Optical recording medium
    • 光记录介质
    • US06808778B2
    • 2004-10-26
    • US09897428
    • 2001-07-03
    • Hiroyuki AriokaHideki Sunohara
    • Hiroyuki AriokaHideki Sunohara
    • B32B302
    • G11B7/24G11B7/00455G11B7/0052G11B7/126G11B7/24085G11B7/246G11B7/2467G11B7/2472G11B7/248G11B7/2492G11B7/2533G11B7/2534G11B7/2575G11B7/259G11B7/2595G11B2007/24612G11C13/04Y10T428/21
    • An optical recording medium is provided with a recording layer and a reflecting film on an optically transparent substrate. The principal component of the recording layer is a dye. Virtual recording cells are assumed within grooves on the recording layer and recording marks with five different levels or more of increasing size are formed on each of the virtual recording cells by modulating the irradiation time of the laser beam in five levels or more in correspondence to the information to be recorded. The reflectance of the virtual recording cells modulates in many levels and the reflection level of the reading laser beam during regeneration is changed in five levels or more. The optically transparent substrate is made of a plastic with a glass transition point (Tg) of 160° C. or less. The reflecting film is a metal with a coefficient of thermal conductivity of 300 k/W·m−1·K−1 or more and a film thickness of 50 nm or more.
    • 光学记录介质在光学透明基板上设有记录层和反射膜。 记录层的主要成分是染料。 虚拟记录单元被假设在记录层上的凹槽内,并且通过将激光束的照射时间调制在五级或更多级中,形成在每个虚拟记录单元上,具有五个不同级别或更大尺寸的记录标记 要记录的信息 虚拟记录单元的反射率在许多水平上进行调制,并且在再生期间读取激光束的反射水平在五个等级以上改变。 光学透明基板由玻璃化转变点(Tg)为160℃以下的塑料制成。 反射膜是导热系数为300k / W·K -1·K -1以上且膜厚为50nm以上的金属。