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    Manufacturing method for optical recording medium, optical recording medium, optical information device, and information reproducing method
    1.
    发明授权
    Manufacturing method for optical recording medium, optical recording medium, optical information device, and information reproducing method 有权
    光记录介质的制造方法，光记录介质，光信息装置和信息再现方法

    公开(公告)号：US08189452B2

    公开(公告)日：2012-05-29

    申请号：US13001192

    申请日：2010-04-14

    申请人： Yoshiaki Komma ,  Joji Anzai ,  Masahiko Tsukuda ,  Yasumori Hino

    发明人： Yoshiaki Komma ,  Joji Anzai ,  Masahiko Tsukuda ,  Yasumori Hino

    IPC分类号： G11B3/70 ,  G11B7/24 ,  G11B5/84 ,  G11B7/26

    CPC分类号： G11B7/24038 ,  G11B7/0037 ,  G11B7/08511 ,  G11B7/26 ,  G11B2007/0013 ,  Y10T29/49

    摘要： Shape-wise thicknesses of a cover layer and first through (N−1)th intermediate layers of an optical recording medium having refractive indexes nr1, nr2 are converted into thicknesses t1, t2 of the respective layers having a predetermined refractive index which makes a divergent amount equal to a divergent amount of a light beam resulting from the thicknesses tr1, tr2, a difference DFF between the sum of a thickness “ti” through a thickness “tj”, and the sum of a thickness “tk” through a thickness “tm” is set to 1 μm or more (where i, j, k, and m are each any positive integer satisfying i≦j≦k≦m≦N), and the thicknesses t1, t2 are calculated by products of a function f(n) expressed by the following formula (1), and the thicknesses tr1, tr2: f(n)=−1.088n3+6.1027n2−12.042n+9.1007  (1) in the formula (1), n=nr1, nr2, . . . , and nrN.

    摘要翻译： 具有折射率nr1，nr2的光学记录介质的覆盖层和第一至第（N-1）个中间层的形状厚度被转换成具有预定折射率的各层的厚度t1，t2，其具有发散性 相当于由厚度tr1，tr2产生的光束的发散量，厚度“ti”与厚度“tj”之和的差DFF与厚度“tk”的厚度之和“ tm“设定为1μm以上（其中，i，j，k和m各自为满足i＆nlE; j＆nlE; k＆nlE; m＆nlE; N）的任何正整数，并且厚度t1，t2由函数f （1）表示的厚度tr1，tr2：f（n）= - 1.088n3 + 6.1027n2-12.042n + 9.1007（1）中，n = nr1，nr2 ，。 。 。 ，和nrN。

    Optical recording medium, and optical information device
    6.
    发明授权
    Optical recording medium, and optical information device 有权
    光记录介质和光信息设备

    公开(公告)号：US08369200B2

    公开(公告)日：2013-02-05

    申请号：US13238060

    申请日：2011-09-21

    申请人： Yoshiaki Komma ,  Joji Anzai ,  Masahiko Tsukuda ,  Yasumori Hino

    发明人： Yoshiaki Komma ,  Joji Anzai ,  Masahiko Tsukuda ,  Yasumori Hino

    IPC分类号： G11B7/00

    CPC分类号： G11B7/24038 ,  G11B7/005 ,  G11B7/09 ,  G11B7/13925 ,  G11B2007/0013

    摘要： An optical recording medium and an optical information device that improve the quality of a servo signal and a reproduction signal. In the optical recording medium, when shape-wise thicknesses tr1, tr2, tr3, and tr4 of a cover layer (42), a first intermediate layer (43), a second intermediate layer (44), and a third intermediate layer (45) are respectively converted into thicknesses t1, t2, t3, and t4 of the respective corresponding layers each having a predetermined refractive index “no”, a defocus amount with respect to a layer having a refractive index nrα and a thickness trα (satisfying: 1≦α≦n (where α is a positive integer and n is an integer of 4 or more)), and a defocus amount with respect to a layer having the refractive index “no” and a thickness tα (satisfying: 1≦α≦n (where α is a positive integer and n is an integer of 4 or more)) are equal to each other. Further, the thicknesses t1, t2, t3, and t4 satisfy |t1−(t2+t3+t4)|≧1 μm, a difference between any two values of the thicknesses t1, t2, t3, and t4 is set to 1 μm or more, and |(t1+t2)−(t3+t4)|≧1 μm.

    摘要翻译： 一种提高伺服信号的质量和再现信号的光学记录介质和光学信息设备。 在光记录介质中，当覆盖层（42），第一中间层（43），第二中间层（44）和第三中间层（45）的形状厚度tr1，tr2，tr3和tr4 ）分别转换成各自具有预定折射率no的相应层的厚度t1，t2，t3和t4，相对于具有折射率nrα和厚度trα的层的散焦量（满足：1＆nlE;α＆nlE ; n（其中α是正整数，n是4以上的整数））和相对于具有折射率no和厚度tα的层的散焦量（满足1＆nlE;α＆nlE; n（其中α 是正整数，n是4以上的整数））彼此相等。 另外，厚度t1，t2，t3，t4满足| t1〜t2（t3 + t4）|≥1μm，将厚度t1，t2，t3，t4的任意两个值之差设定为1μm 以上|（t1 + t2） - （t3 + t4）|≥1μm。

    OPTICAL RECORDING MEDIUM, AND OPTICAL INFORMATION DEVICE
    7.
    发明申请
    OPTICAL RECORDING MEDIUM, AND OPTICAL INFORMATION DEVICE 有权
    光学记录介质和光信息设备

    公开(公告)号：US20110078711A1

    公开(公告)日：2011-03-31

    申请号：US12994967

    申请日：2009-11-11

    申请人： Yoshiaki Komma ,  Joji Anzai ,  Masahiko Tsukuda ,  Yasumori Hino

    发明人： Yoshiaki Komma ,  Joji Anzai ,  Masahiko Tsukuda ,  Yasumori Hino

    IPC分类号： G11B7/24 ,  G11B7/135

    CPC分类号： G11B7/24038 ,  G11B7/005 ,  G11B7/09 ,  G11B7/13925 ,  G11B2007/0013

    摘要： An object of the invention is to provide an optical recording medium and an optical information device that enable to improve the quality of a servo signal and a reproduction signal. In the case where shape-wise thicknesses tr1, tr2, tr3, and tr4 of a cover layer (42), a first intermediate layer (43), a second intermediate layer (44), and a third intermediate layer (45) are respectively converted into thicknesses t1, t2, t3, and t4 of the respective corresponding layers each having a predetermined refractive index “no”, a defocus amount with respect to a layer having a refractive index nrα and a thickness trα (satisfying: 1≦α≦n (where α is a positive integer and n is an integer of 4 or more)), and a defocus amount with respect to a layer having the refractive index “no” and a thickness t α (satisfying: 1≦α≦n (where α a is a positive integer and n is an integer of 4 or more)) are equal to each other; and the thicknesses t1, t2, t3, and t4 satisfy |t1−(t2+t3+t4)|≧1 μm, a difference between any two values of the thicknesses t1, t2, t3, and t4 is set to 1 μm or more in any case, and |(t1+t2)−(t3+t4|≧1 μm.

    摘要翻译： 本发明的目的是提供一种能够提高伺服信号和再现信号的质量的光学记录介质和光学信息设备。 在覆盖层（42），第一中间层（43），第二中间层（44）和第三中间层（45）的成形厚度tr1，tr2，tr3和tr4分别为 转换成各自具有预定折射率“no”的相应层的厚度t1，t2，t3和t4，相对于具有折射率nrα和厚度trα的层的散焦量（满足1＆nlE;α＆nlE; n（其中α是正整数，n是4以上的整数））和相对于具有折射率“no”的层和厚度tα的散焦量（满足：1＆nlE;α＆nlE; n（ 其中αa为正整数，n为4以上的整数））彼此相同; 厚度t1，t2，t3，t4满足| t1-（t2 + t3 + t4）|≥1μm，将厚度t1，t2，t3，t4的任意两个值的差设为1μm， |（t1 + t2） - （t3 + t4 |≥1μm）。

    OPTICAL RECORDING MEDIUM, AND OPTICAL INFORMATION DEVICE
    8.
    发明申请
    OPTICAL RECORDING MEDIUM, AND OPTICAL INFORMATION DEVICE 审中-公开
    光学记录介质和光信息设备

    公开(公告)号：US20110075534A1

    公开(公告)日：2011-03-31

    申请号：US12995217

    申请日：2009-11-11

    申请人： Yoshiaki Komma ,  Masahiko Tsukuda ,  Joji Anzai ,  Yasumori Hino

    发明人： Yoshiaki Komma ,  Masahiko Tsukuda ,  Joji Anzai ,  Yasumori Hino

    IPC分类号： G11B20/00 ,  B32B3/02

    CPC分类号： G11B7/24038

    摘要： An object of the invention is to provide an optical recording medium and an optical information device that enable to improve the quality of a servo signal and a reproduction signal. In the case where shape-wise thicknesses tr1, tr2, tr3, and tr4 of a cover layer (42), a first intermediate layer (43), a second intermediate layer (44), and a third intermediate layer (45) are respectively converted into thicknesses t1, t2, t3, and t4 of the respective corresponding layers each having a predetermined refractive index “no”, a defocus amount with respect to a layer having a refractive index nrα and a thickness trα (satisfying: 1≦α≦n (where α is a positive integer and n is an integer of 4 or more)), and a defocus amount with respect to a layer having the refractive index “no” and a thickness tα (satisfying: 1≦α≦n (where α is a positive integer and n is an integer of 4 or more)) are equal to each other; and the thicknesses t1, t2, t3, and t4 satisfy |t1−(t2+t3+t4)|≧1 μm, a difference between any two values of the thicknesses t1, t2, t3, and t4 is set to 1 μm or more in any case, and |(t1+t2)−(t3+t4)|≧1 μm.

    摘要翻译： 本发明的目的是提供一种能够提高伺服信号和再现信号的质量的光学记录介质和光学信息设备。 在覆盖层（42），第一中间层（43），第二中间层（44）和第三中间层（45）的成形厚度tr1，tr2，tr3和tr4分别为 转换成各自具有预定折射率“no”的相应层的厚度t1，t2，t3和t4，相对于具有折射率nrα和厚度trα的层的散焦量（满足1＆nlE;α＆nlE; n（其中α是正整数，n是4以上的整数））和相对于折射率“no”的层的散焦量和厚度tα（满足1＆lt; nlE;α＆nlE; n（其中 α是正整数，n是4以上的整数））彼此相等; 厚度t1，t2，t3，t4满足| t1-（t2 + t3 + t4）|≥1μm，厚度t1，t2，t3，t4的任意两个值之间的差设定为1μm， |（t1 + t2） - （t3 + t4）|≥1μm。