公开(公告)号：US20100143637A1

公开(公告)日：2010-06-10

申请号：US12580721

申请日：2009-10-16

申请人： Yoshiaki KOMMA ,  Joji Anzai ,  Hiroyasu Inoue ,  Takashi Kikukawa ,  Koji Mishima ,  Jun Nakano ,  Manami Miyawaki ,  Shigeki Takagawa

发明人： Yoshiaki KOMMA ,  Joji Anzai ,  Hiroyasu Inoue ,  Takashi Kikukawa ,  Koji Mishima ,  Jun Nakano ,  Manami Miyawaki ,  Shigeki Takagawa

IPC分类号： B32B3/02 ,  G11B7/26

CPC分类号： G11B7/24038 ,  G11B7/1376 ,  G11B7/13925 ,  Y10T428/21

摘要： An object of the invention is to provide an optical recording medium and a method for producing an optical recording medium that enable to improve the quality of a servo signal and a reproduction signal. The optical recording medium satisfies: t3−t4≧1 μm, t4−t2≧1 μm, t2≧10 μm, and t1−(t2+t3+t4)≧1 μm, where t1 is a thickness between a surface of the optical recording medium, and the first information recording surface, t2 is a thickness between the first optical recording surface and the second information recording surface, t3 is a thickness between the second optical recording surface and the third information recording surface, and t4 is a thickness between the third optical recording surface and the fourth information recording surface.

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记录介质的制造方法。 光记录介质满足：t3-t4≥1μm，t4-t2≥1μm，t2≥10μm，t1-（t2 + t3 + t4）≥1μm，其中t1是光学表面之间的厚度 记录介质，第一信息记录表面，t2是第一光学记录表面和第二信息记录表面之间的厚度，t3是第二光学记录表面和第三信息记录表面之间的厚度，t4是 第三光学记录表面和第四信息记录表面。

公开(公告)号：US20110076436A1

公开(公告)日：2011-03-31

申请号：US12882281

申请日：2010-09-15

申请人： Hiroyasu INOUE ,  Takashi KIKUKAWA ,  Koji MISHIMA ,  Yoshiaki KOMMA ,  Joji ANZAI ,  Jun NAKANO ,  Manami MIYAWAKI ,  Shigeki TAKAGAWA

发明人： Hiroyasu INOUE ,  Takashi KIKUKAWA ,  Koji MISHIMA ,  Yoshiaki KOMMA ,  Joji ANZAI ,  Jun NAKANO ,  Manami MIYAWAKI ,  Shigeki TAKAGAWA

IPC分类号： G06F17/10 ,  B32B3/02

CPC分类号： G11B7/24038 ,  Y10T428/21

摘要： An optical recording medium having three or more information recording layers reduces crosstalk caused by multi-reflected beams and improves signal quality. In the optical recording medium having three or more information recording layers, the refractive index of a plurality of intermediate layers disposed between adjacent information recording layers is greater than the refractive index of a cover layer disposed between a light incident surface and an information recording layer being the closest from the light incident surface.

摘要翻译： 具有三个或更多个信息记录层的光记录介质减少了由多反射光束引起的串扰并提高了信号质量。 在具有三个以上信息记录层的光记录介质中，设置在相邻信息记录层之间的多个中间层的折射率大于设置在光入射表面和信息记录层之间的覆盖层的折射率， 最靠近光入射面。

公开(公告)号：US20120213044A1

公开(公告)日：2012-08-23

申请号：US13461070

申请日：2012-05-01

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： G11B7/085 ,  B23P17/04 ,  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

公开(公告)号：US20120213045A1

公开(公告)日：2012-08-23

申请号：US13461094

申请日：2012-05-01

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： G11B7/085 ,  G06F19/00

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

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，m分别为满足i＆nlE; j

公开(公告)号：US20120113787A1

公开(公告)日：2012-05-10

申请号：US13348131

申请日：2012-01-11

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： G11B7/00 ,  G06F19/00

CPC分类号： G11B7/24038 ,  G11B7/26

摘要： Shape-wise thicknesses tr1, tr2, . . . , and trN of a cover layer and first through (N−1)-th intermediate layers of an optical recording medium having refractive indexes nr1, nr2, . . . , and nrN are converted into thicknesses t1, t2, . . . , and tN which are calculated by products of a function f(n)=−1.088n3+6.1027n2−12.042n+9.1007, where n=nr1, nr2, . . . , and nrN.

摘要翻译： 形状厚度tr1，tr2，... 。 。 ，以及具有折射率nr1，nr2的光学记录介质的第一至第（N-1）个中间层的覆盖层和trN。 。 。 ，nrN转换为厚度t1，t2。 。 。 ，和由函数f（n）= - 1.088n3 + 6.1027n2-12.042n + 9.1007的乘积计算的tN，其中n = nr1，nr2，...。 。 。 ，和nrN。

公开(公告)号：US20120011523A1

公开(公告)日：2012-01-12

申请号：US13236812

申请日：2011-09-20

申请人： Yoshiaki KOMMA ,  Joji ANZAI

发明人： Yoshiaki KOMMA ,  Joji ANZAI

IPC分类号： G11B7/26 ,  B05D5/06 ,  G11B15/46

CPC分类号： G11B7/24038 ,  G11B7/08511 ,  G11B7/13925 ,  G11B7/26 ,  Y10T428/2495

摘要： An optical recording medium (disk) capable of preventing a back focus at a face thereof and reducing the interference between beams reflected by each recording surface, thereby improving a quality of a servo signal and a reproductive signal. In a disk having (N−1) layers, if N is a natural number (more than three), and if a cover-layer thickness and intermediate-layer thicknesses are d1, d2, . . . dN, then a difference of 1 μm or above is set between the sum of di to dj and the sum of dk to dm for arbitrary natural numbers i, j, k, m (i≦j≦k≦m≦N). If refractive indexes are different from a standard value or different for each layer, then the thickness of each layer is converted based on a spread width of light according to the thickness.

摘要翻译： 一种能够防止其面部的后焦点并减少由每个记录表面反射的光束之间的干涉的光记录介质（盘），从而提高伺服信号的质量和生殖信号。 在具有（N-1）层的盘中，如果N是自然数（大于3），并且如果覆盖层厚度和中间层厚度为d1，d2。 。 。 dN，则对于任意自然数i，j，k，m（i＆nlE; j＆nlE; k＆nlE; m＆nlE; N），在di与dj之和和dk与dm的和之间设定1μm以上的差。 如果折射率不同于每个层的标准值或不同，则每层的厚度根据厚度的扩展宽度而被转换。

公开(公告)号：US20100118685A1

公开(公告)日：2010-05-13

申请号：US12269289

申请日：2008-11-12

申请人： Yoshiaki KOMMA ,  Joji ANZAI

发明人： Yoshiaki KOMMA ,  Joji ANZAI

IPC分类号： G11B7/00 ,  G11B7/24

CPC分类号： G11B7/24038 ,  G11B7/08511 ,  G11B7/13925 ,  G11B7/26 ,  Y10T428/2495

摘要： An optical recording medium is capable of preventing a back focus at the face thereof and reducing the interference between beams reflected by each recording surface, thereby improving the quality of a servo signal and a reproductive signal. In a disk having (N-1) layers if N is a natural number (more than three), if a cover-layer thickness and intermediate-layer thicknesses are d1, d2, . . . dN, then a difference of 1 μm or above is set between the sum of di to dj and the sum of dk to dm for arbitrary natural numbers i, j, k, m (i≦j≦k≦m≦N). If the refractive indexes are different from a standard value or different for each layer, the thickness of each layer is converted on the basis of the spread width of light according to the thickness.

摘要翻译： 光学记录介质能够防止在其表面的后焦点并减少由每个记录表面反射的光束之间的干涉，从而提高伺服信号的质量和生殖信号。 如果N是自然数（大于3），则具有（N-1）层的盘，如果覆盖层厚度和中间层厚度为d1，d2。 。 。 dN，则对于任意自然数i，j，k，m（i＆nlE; j＆nlE; k＆nlE; m＆nlE; N），在di与dj之和和dk与dm的和之间设定1μm以上的差。 如果折射率不同于每个层的标准值或不同，则每层的厚度根据厚度的扩展宽度而被转换。

公开(公告)号：US20120011524A1

公开(公告)日：2012-01-12

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： G11B7/24 ,  G11B7/135

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 ）分别转换为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（满足1＆lt; 1EE）的散焦量 ;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”的层的散焦量和厚度tα（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。

公开(公告)号：US20100149932A1

公开(公告)日：2010-06-17

申请号：US12617390

申请日：2009-11-12

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： G11B7/00 ,  G11B7/24

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, a first intermediate layer, a second intermediate layer, and a third intermediate layer 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，第一中间层，第二中间层和第三中间层的成形厚度tr1，tr2，tr3和tr4分别转换为厚度t1，t2，t3和t4的厚度t1，t2，t3和t3 各相应的层各自具有预定的折射率“no”，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＆nlE;α＆nlE; n（其中α为正整数，n为4的整数） 或更多））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。

公开(公告)号：US20120314558A1

公开(公告)日：2012-12-13

申请号：US13558465

申请日：2012-07-26

申请人： Yoshiaki KOMMA ,  Toshiyasu TANAKA ,  Fumitomo YAMASAKI

发明人： Yoshiaki KOMMA ,  Toshiyasu TANAKA ,  Fumitomo YAMASAKI

IPC分类号： G02B5/18 ,  G11B19/20 ,  G11B7/1374

CPC分类号： G11B7/1374 ,  G11B7/1353 ,  G11B7/13922 ,  G11B2007/0006

摘要： In an optical head device which performs recording/reading of data in/from a high-density optical disc using an objective lens with a large NA, a saw-tooth shape diffraction element is used for also performing recording/reading of data in/from a conventional optical disc, such as DVD, CD, or the like. A step difference that produces an optical path length for blue light which is equal to or longer than the wavelength of the blue light and optical path lengths for red and infrared light which are shorter than the wavelengths of the red and infrared light is utilized so as to exert an inverse action on the blue light to those exerted on the red and infrared light. The effect of increasing the working distances for CD and DVD enables multiple compatibility. The optical element is integrally combined with the objective lens to perform a tracking servo following operation.

摘要翻译： 在使用具有大NA的物镜的高密度光盘中进行数据的记录/读取的光学头装置中，使用锯齿形衍射元件也进行数据的记录/读取 常规的光盘，例如DVD，CD等。 使用等于或长于蓝光的波长的蓝色光的路径长度和比红色和红外光的波长短的红色和红色光的光路长度的阶差，被利用为 对蓝色光施加与红色和红色光上的那些相反的作用。 增加CD和DVD的工作距离的效果可以实现多种兼容性。 光学元件与物镜整体地组合以执行跟踪伺服跟随操作。