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：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：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：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：US20120155240A1

公开(公告)日：2012-06-21

申请号：US13316085

申请日：2011-12-09

申请人： Seong-su PARK ,  Joji ANZAI ,  Yong-han YOON ,  Jong-uk KIM ,  Ichiro MORISHITA

发明人： Seong-su PARK ,  Joji ANZAI ,  Yong-han YOON ,  Jong-uk KIM ,  Ichiro MORISHITA

IPC分类号： G11B7/1353 ,  G11B7/1374

CPC分类号： G11B7/1374 ,  G11B7/1353

摘要： An optical pick-up apparatus for reproducing information recorded on an optical recording medium or recording information on the optical recording medium is provided. The optical pick-up apparatus includes a light source unit which generates beams; a diffraction element which diffracts the generated beams; and an objective lens which focuses a p order diffracted beam which is used for recording and reproducing information among a plurality of diffracted beams which are diffracted by the diffraction element on any one of a plurality of information layers which are formed on an optical recording medium. A p±1 order diffracted beam which is not used for recording and reproducing information is focused away from the plurality of information recording layers and on the surface of the optical recording medium.

摘要翻译： 提供了一种用于再现记录在光学记录介质上的信息或在光学记录介质上记录信息的光学拾取装置。 光学拾取装置包括产生光束的光源单元; 衍射元件衍射生成的光束; 以及物镜，其将用于在通过衍射元件衍射的多个衍射光束中记录和再现信息的p阶衍射光束聚焦在形成在光学记录介质上的多个信息层中的任何一个上。 不用于记录和再现信息的p±1级衍射光束从多个信息记录层和光记录介质的表面上聚焦。