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    • 5. 发明授权
    • Method of making an optical information recording substrate
    • 制造光学信息记录基板的方法
    • US5498509A
    • 1996-03-12
    • US338178
    • 1994-11-09
    • Yuaki ShinTakashi IshiguroEmiko HamadaKeiichi Kagawa
    • Yuaki ShinTakashi IshiguroEmiko HamadaKeiichi Kagawa
    • G11B7/24G11B7/26G11B23/38
    • G11B23/38G11B7/24G11B7/26Y10S430/146
    • An optical information recording substrate and method of producing the substrate, the substrate having a legible matter formed in a groove area thereof or a pit array area thereof, wherein the legible matter includes a plurality of grooves or pit arrays being partially different in the breadth or depth thereof. The grooves or arrays may be partially dislocated in the radial direction of the optical information recording substrate from a predetermined track. The visually legible matter may include a plurality of laser generated pit arrays wherein remaining portions of the legible matter have a plurality of continuous grooves formed therein. The legible matter may also include a plurality of continuous grooves wherein remaining portions of the legible matter includes a plurality of laser generated pit arrays formed therein.
    • 一种光学信息记录基板及其制造方法,该基板具有形成在其凹槽区域中的可读物质或其凹坑阵列区域,其中该可读物质包括多个在宽度上部分不同的凹槽或凹坑阵列, 的深度。 凹槽或阵列可以沿着光学信息记录基板的径向方向从预定轨迹部分脱位。 视觉清晰的物质可以包括多个激光产生的凹坑阵列,其中可读物质的剩余部分在其中形成有多个连续凹槽。 清晰的物质还可以包括多个连续凹槽,其中可读物质的剩余部分包括其中形成的多个激光产生的凹坑阵列。
    • 10. 发明授权
    • Optical information recording medium
    • 光信息记录介质
    • US06168844A
    • 2001-01-02
    • US09128085
    • 1998-08-03
    • Yoshikazu TakagishiTakanori YoshizawaEmiko Hamada
    • Yoshikazu TakagishiTakanori YoshizawaEmiko Hamada
    • B32B302
    • G11B7/24G11B7/245G11B7/2472G11B7/248G11B7/2534G11B7/2542G11B7/2585G11B7/2595Y10S428/913Y10S430/146Y10T428/21
    • By keeping the imaginary number portion k of the complex index of refraction of the film of the light absorbing layer 3, the mean film thickness dav of the light absorbing layer 3, and the absorbency A related thereto within an appropriate range, the present invention provides an optical information recording medium with good recording sensitivity and playback properties, which makes possible high speed recording by increasing the sensitivity to the recording beam and stable recording with sufficient reflectivity, and which can reduce jitter. In the present invention, 0.13≦A≦0.21 where A (Abs) is the absorbency of the light absorbing layer at the wavelength of the recording beam; and 6.0≦k.dav≦12.0 where k is the imaginary number portion of the complex index of refraction of the film in the light absorbing layer and dav (nm) is the mean film thickness of the light absorbing layer, at the wavelength of the recording beam.
    • 通过将光吸收层3的膜,光吸收层3的平均膜厚度dav和与其有关的吸光度A的复折射率的虚数部分k保持在适当的范围内,本发明提供 具有良好记录灵敏度和回放特性的光学信息记录介质,通过增加对记录光束的灵敏度和足够的反射率的稳定记录,可以实现高速记录,并且可以减少抖动。在本发明中,0.13 <= A < = 0.21其中A(Abs)是记录光束的波长处的光吸收层的吸光度; 和6.0 <= k.dav <= 12.0其中k是光吸收层中膜的复折射率的虚数部分,dav(nm)是光吸收层的平均膜厚度,在波长 的记录光束。