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28 条记录 (耗时 0.023 秒)

    Optical information medium, stamper for manufacturing transparent substrate therefor and recording method therefor
    11.
    发明授权
    Optical information medium, stamper for manufacturing transparent substrate therefor and recording method therefor 有权
    光学信息介质，用于制造其透明基板的压模及其记录方法

    公开(公告)号：US06504815B1

    公开(公告)日：2003-01-07

    申请号：US09504267

    申请日：2000-02-15

    申请人： Toru Fujii ,  Emiko Hamada

    发明人： Toru Fujii ,  Emiko Hamada

    IPC分类号： G11B1100

    CPC分类号： G11B7/24085 ,  G11B7/00745 ,  G11B7/263

    摘要： An optical information medium is made up of a transparent substrate for a recording laser beam to penetrate therethrough, a recording layer formed on the transparent substrate, and a reflective layer for reflecting reproducing laser beam formed thereupon enabling the recording of optically readable signals by means of an incident recording laser from the transparent substrate. The transparent substrate has spiral-like tracking guides on the surface of the transparent substrate on which is formed the recording layer, and pre-pits indicative of address information are formed on a land portion defined between the tracking guides. The pre-pits are formed shifted from a center of the land. With this construction, the pre-pits open to a side of the tracking guide neighboring the land. With this, it is possible to read out address signals from the pre-pits with certainty when recording, and also to suppress errors due to mixing between the signals obtained from the pre-pits indicative of the address information and the recorded data read out from the pits on the tracking guides when reading the recorded optically readable signals.

    摘要翻译： 光信息介质由用于穿透其的记录激光束的透明基板，形成在透明基板上的记录层和用于反射在其上形成的再现激光束反射的反射层构成，使得能够通过以下方式记录光学可读信号： 来自透明基板的入射记录激光。 透明基板在其上形成记录层的透明基板的表面上具有螺旋形跟踪引导件，并且在跟踪引导件之间限定的台面部分上形成指示地址信息的预凹坑。 预制坑从地面中心转移。 通过这种结构，预留凹坑向邻近该陆地的跟踪指南的一侧开放。 由此，可以在记录时确定地读出来自预制凹坑的地址信号，并且还能够抑制由于从表示地址信息的预制坑获得的信号与从 当读取记录的光学可读信号时，跟踪引导件上的凹坑。

    Optical information recording medium and recording method
    12.
    发明授权
    Optical information recording medium and recording method 失效
    光信息记录介质和记录方法

    公开(公告)号：US5080946A

    公开(公告)日：1992-01-14

    申请号：US549114

    申请日：1990-07-06

    申请人： Yosikazu Takagisi ,  Kunihiko Ootaguro ,  Emiko Hamada ,  Toru Fujii

    发明人： Yosikazu Takagisi ,  Kunihiko Ootaguro ,  Emiko Hamada ,  Toru Fujii

    IPC分类号： G03G5/04 ,  G11B7/24

    CPC分类号： G11B7/24 ,  Y10S428/913 ,  Y10S430/146 ,  Y10T428/24876 ,  Y10T428/24893

    摘要： An optical information recording medium comprising a light transmitting substrate having a spiral pregroove formed on its surface, a light absorptive layer of a coloring matter formed on the substrate directly or with other layer interposed therebetween, and a light reflective layer made of a metal film formed on the light absorptive layer directly or with other layer interposed therebetween, wherein .DELTA.S.ltoreq.0.3 wherein .DELTA.S is the optical phase difference represented by .DELTA.S=2d.sub.sub {n.sub.sub -n.sub.abs (1-d.sub.abs /d.sub.sub)}/.lambda. wherein d.sub.sub is the depth of the layer boundary on the substrate side of the light absorptive layer at the portion corresponding to the pregroove, d.sub.abs is the depth of the layer boundary on the light absorptive layer side of the light reflective layer at the portion corresponding to the pregroove, n.sub.sub is the real part of the complex refractive index of the substrate and any layer present on the substrate side of the light absorptive layer, n.sub.abs is the real part of the complex refractive index of the light absorptive layer, and .lambda. is the wavelength of a laser beam.

    Optical recording medium containing a light stabilizer comprised of aryl nitrogen compound
    13.
    发明授权
    Optical recording medium containing a light stabilizer comprised of aryl nitrogen compound 失效
    含有由芳基氮化合物构成的光稳定剂的光学记录介质

    公开(公告)号：US5318882A

    公开(公告)日：1994-06-07

    申请号：US686870

    申请日：1991-04-16

    申请人： Kunihiko Ootaguro ,  Emiko Hamada ,  Yosikazu Takagisi ,  Toru Fujii

    发明人： Kunihiko Ootaguro ,  Emiko Hamada ,  Yosikazu Takagisi ,  Toru Fujii

    IPC分类号： C08K5/32 ,  G11B7/244 ,  G11B7/24

    CPC分类号： C08K5/32 ,  G11B7/244 ,  G11B7/2472 ,  G11B7/2475 ,  G11B7/2534 ,  Y10S430/146

    摘要： Certain types of aryl nitrogen compounds are found to be useful not only for effectively rendering dyes lightfast but also for using as an additive that has high solubility in solvents and sufficiently good miscibility with dyes to insure that their solubility will not be impaired. They can be used for preventing various reactions that cause deterioration by light in organic dyes, in particular cyanine dyes. They can also be used for improving the keeping quality and recording and reproduction characteristics of optical recording media that use organic dyes in the form of thin films. Representative examples include N, N-lower alkyl substituted nitrosoanilines, phenol or naphthol derivatives having at least one nitroso group, nitrosodiphenylamine and its derivatives and 1-pycryl-2, 2-diarylhydrazyl free radicals.

    摘要翻译： 发现某些类型的芳基氮化合物不仅用于有效地使染料耐光，而且用作在溶剂中具有高溶解性和与染料充分良好混溶性的添加剂，以确保其溶解性不会受损。 它们可用于防止在有机染料，特别是花青染料中引起光的劣化的各种反应。 它们也可用于提高以薄膜形式使用有机染料的光学记录介质的保存质量和记录和再现特性。 代表性实例包括N，N-低级烷基取代的亚硝基苯胺，具有至少一个亚硝基的苯酚或萘酚衍生物，亚硝基二苯胺及其衍生物和1-对环基-2,2-二芳基肼基自由基。

    Optical information recording medium having protective layer
    17.
    发明授权
    Optical information recording medium having protective layer 失效
    具有保护层的光学信息记录介质

    公开(公告)号：US4920359A

    公开(公告)日：1990-04-24

    申请号：US376213

    申请日：1989-07-03

    申请人： Yuji Arai ,  Emiko Hamada ,  Yuaki Shin ,  Takashi Ishiguro

    发明人： Yuji Arai ,  Emiko Hamada ,  Yuaki Shin ,  Takashi Ishiguro

    IPC分类号： B41M5/26 ,  G11B7/24 ,  G11B7/254 ,  G11B7/257

    CPC分类号： G11B7/2575 ,  G11B7/2542 ,  G11B2007/24312 ,  G11B2007/24316 ,  G11B7/246 ,  G11B7/2472 ,  G11B7/248 ,  G11B7/249 ,  G11B7/252 ,  G11B7/2534 ,  Y10S430/146 ,  Y10S430/151

    摘要： An optical information recording medium comprising a substrate, an optical recording layer formed over the surface of the substrate, and a protective layer covering the optical recording layer. The protective layer incorporates an antireflection means, such as a laser beam absorbing means, a laser beam scattering means or a laser beam transmitting means, for preventing the reflection of a laser beam applied to the optical recording layer.An optical information recording medium of a second embodiment of the present invention, comprises a substrate, an optical recording layer formed over the surface of the substrate, a protective layer covering the optical recording layer, and a buffer layer interposed between the optical recording layer and the protective layer. At least one of the protective layer or the buffer layer incorporates at least one antireflection means, such as a laser beam absorbing means, a laser beam scattering means and a laser beam transmitting means, for preventing the reflection of a laser beam. The buffer layer facilitates precisely forming recording bits in the optical recording layer by locally deforming the optical recording layer by a laser beam.

    Medium and method for recording optical information
    18.
    发明授权
    Medium and method for recording optical information 有权
    介质和记录光信息的方法

    公开(公告)号：US06507547B1

    公开(公告)日：2003-01-14

    申请号：US09531208

    申请日：2000-03-20

    申请人： Yoshikazu Takagishi ,  Takanori Yoshizawa ,  Kazuyuki Shibuya ,  Emiko Hamada

    发明人： Yoshikazu Takagishi ,  Takanori Yoshizawa ,  Kazuyuki Shibuya ,  Emiko Hamada

    IPC分类号： G11B700

    CPC分类号： G11B7/00455 ,  G11B7/24 ,  G11B7/2472 ,  G11B7/2531 ,  G11B7/2534 ,  G11B7/2542 ,  G11B7/259

    摘要： Provided is a medium for recording optical information and a method for recording optical information that allow recording sensitivity to be increased, and particularly a prescribed recording sensitivity to be maintained together with reflectivity and other playback characteristics during high-speed recording, by employing the temperature dependence of recording sensitivity of the light-absorbing layer instead of the light attenuation coefficient of the light-absorbing layer, and selecting a material which is prone to increased absorption of a laser beam at high temperatures during recording. A distinctive feature is that the absorbance or recording sensitivity of the dye material film used in the medium for recording optical information that has a writable structure is dependent on temperature. Specifically, it was found that the absorption spectrum of the dye material varies at high temperatures, and a relation A2/A1≧1.30 was established. In this relation, A1 (Abs) is an absorbance of the light-absorbing layer at a wavelength of recording light under room-temperature conditions, T (°C.) is a pyrolysis temperature of the light-absorbing layer, and A2 (Abs) is an absorbance at a wavelength of recording light under T−50 (°C.) conditions.

    摘要翻译： 提供了一种用于记录光学信息的介质和用于记录允许记录灵敏度增加的光学信息的方法，特别是在高速记录期间通过采用温度依赖性与特定的记录灵敏度一起保持与反射率和其他重放特性 记录光吸收层的灵敏度而不是光吸收层的光衰减系数，并且在记录期间选择易于增加激光束在高温下的吸收的材料。 特别的特征是用于记录具有可写结构的光学信息的介质中的染料材料膜的吸光度或记录灵敏度取决于温度。 具体地说，发现染料的吸收光谱在高温下变化，建立了A2 / A1> = 1.30的关系。 在这种关系中，A1（Abs）是在室温条件下记录光波长处的光吸收层的吸光度，T（℃）是光吸收层的热解温度，A2（Abs ）是在T-50（℃）条件下记录光的波长处的吸光度。