公开(公告)号：US20090268588A1

公开(公告)日：2009-10-29

申请号：US12517676

申请日：2007-12-04

申请人： Hideki Aikoh ,  Makoto Takashima ,  Eishin Mori ,  Kousei Sano ,  Joji Anzai ,  Kenichi Shinotani

发明人： Hideki Aikoh ,  Makoto Takashima ,  Eishin Mori ,  Kousei Sano ,  Joji Anzai ,  Kenichi Shinotani

IPC分类号： G11B7/00 ,  C08G77/12

CPC分类号： H01L31/0203 ,  C08G77/045 ,  C08G77/12 ,  C08G77/20 ,  G02B1/043 ,  G11B7/1378 ,  G11B7/1381 ,  H01L24/73 ,  H01L31/02325 ,  H01L2224/32245 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/73265 ,  H01L2924/14 ,  H01L2924/16195 ,  H01L2924/181 ,  C08L83/04 ,  H01L2924/00014 ,  H01L2924/00012 ,  H01L2924/00

摘要： An object of the invention is to provide an optical element for use in an optical information recording and reproducing device or a like device for recording or reproducing information with respect to an information recording medium using laser light, wherein the optical element is a resin optical element capable of suppressing lowering in transmittance due to deterioration by irradiation of light having a high energy density, and maintaining a high transmittance for a long time. To realize the above object, used is an optical element made of a silicon resin cured material obtained by subjecting a silicon resin composition containing a silsesquioxane compound to a curing treatment.

摘要翻译： 本发明的目的是提供一种用于光信息记录和再现装置或类似装置中用于使用激光对信息记录介质进行信息记录或再现的光学元件，其中光学元件是树脂光学元件 能够抑制由于能量密度高的光的照射而导致的透光率降低，并且能够长期保持高透射率。 为了实现上述目的，使用由含有倍半硅氧烷化合物的硅树脂组合物进行固化处理得到的硅树脂固化物制成的光学元件。

公开(公告)号：US20090034402A1

公开(公告)日：2009-02-05

申请号：US12280699

申请日：2007-02-27

申请人： Kanji Wakabayashi ,  Yoshiaki Komma ,  Kousei Sano ,  Hidenori Wada ,  Keiichi Matsuzaki ,  Toshiyasu Tanaka

发明人： Kanji Wakabayashi ,  Yoshiaki Komma ,  Kousei Sano ,  Hidenori Wada ,  Keiichi Matsuzaki ,  Toshiyasu Tanaka

IPC分类号： G11B7/00

CPC分类号： G11B7/1362 ,  G11B7/08582 ,  G11B7/0933 ,  G11B7/0935 ,  G11B7/1365 ,  G11B7/1374 ,  G11B7/1392 ,  G11B2007/0006

摘要： In an optical head device including a light source for emitting a light of a predetermined wavelength; a collimator lens for converting a divergence degree of the light; a folding mirror for folding a direction of the light emitted from the light source; an objective lens for converging the light on a recording surface of an optical disc; a photodetector for receiving the light reflected at the recording surface of the optical disc, and converting to an electric signal; and an optical path adjustment unit for guiding the light emitted from the light source to the collimator lens and guiding the light reflected at the recording surface of the optical disc to the photodetector; a wavelength plate for polarizing the light reflected by the folding mirror is arranged on an actuator base between the folding mirror and the objective lens.

摘要翻译： 一种光头装置，包括用于发射预定波长的光的光源; 用于转换光的发散度的准直透镜; 用于折叠从光源发射的光的方向的折叠镜; 用于将光会聚在光盘的记录表面上的物镜; 用于接收在光盘的记录表面处反射的光并转换​​成电信号的光电检测器; 以及光路调整单元，用于将从光源发射的光引导到准直透镜，并将在光盘的记录表面处反射的光引导到光电检测器; 用于使由折叠反射镜反射的光偏振的波长板布置在折叠反射镜和物镜之间的致动器基座上。

公开(公告)号：US20080109837A1

公开(公告)日：2008-05-08

申请号：US11907186

申请日：2007-10-10

申请人： Joji Anzai ,  Hideki Aikoh ,  Kousei Sano ,  Eishin Mori

发明人： Joji Anzai ,  Hideki Aikoh ,  Kousei Sano ,  Eishin Mori

IPC分类号： G11B7/24

CPC分类号： G11B7/13927 ,  G11B7/0948 ,  G11B7/24038

摘要： An optical recording medium improves the quality of servo signals and readout signals by preventing light convergence on the back of the surface of the optical recording medium and reducing interference of light reflected from recording surfaces of the optical recording medium. An optical recording medium 40 includes at least three information recording surfaces, and satisfies d1

摘要翻译： 光学记录介质通过防止光记录介质表面背面的光会聚并减少由光记录介质的记录表面反射的光的干扰来提高伺服信号和读出信号的质量。 光记录介质40包括至少三个信息记录表面，并且满足d 1 <（d 4 -d 1），其中d 1是从光记录介质40的表面40z到第一信息记录表面40的距离 最接近表面40z和d4的距离是从表面40z到距离表面40z最远的第四信息记录表面40d的距离，并且满足dmin> =8μm，其中dmin为 所述至少三个信息记录表面之间的最小层间厚度。

公开(公告)号：US20050276202A1

公开(公告)日：2005-12-15

申请号：US11151272

申请日：2005-06-14

申请人： Kousei Sano ,  Yoshiaki Komma ,  Sadao Mizuno

发明人： Kousei Sano ,  Yoshiaki Komma ,  Sadao Mizuno

IPC分类号： G11B7/13 ,  G11B7/135 ,  G11B7/00

CPC分类号： G11B7/1353

摘要： An optical head is provided which is capable of realizing a stable tracking control, even if the rotational center of an information recording medium is not located on the extension line of the transfer directions of a light-concentrating element. This optical head includes: a semiconductor laser which emits a beam of light; an objective lens which concentrates the beam of light on an optical disk; a transfer mechanism which transfers the objective lens between the outermost circumference and the innermost circumference of the recording area of the optical disk along the optical disk; and a photo-detector which detects a beam of light that returns from the optical disk. The photo-detector includes a plurality of areas which are divided by a division line. The division line is set parallel to the tangential directions of the track in a predetermined position on the transfer line of the objective lens between the outermost circumference and the innermost circumference of the recording area, and the plurality of areas are divided, by a lateral division line which intersects the division line, into a first area on which a beam of light that mainly includes a tracking component is incident and a second area on which a beam of light that does not include the tracking component is incident.

摘要翻译： 即使信息记录介质的旋转中心不在聚光元件的传送方向的延长线上，也能够实现稳定的跟踪控制的光学头。 该光头包括：发射光束的半导体激光器; 将光束聚集在光盘上的物镜; 传送机构，其沿着光盘在光盘的记录区域的最外圆周和最内圆周之间传送物镜; 以及光检测器，其检测从光盘返回的光束。 光检测器包括由划分线划分的多个区域。 分割线与记录区域的最外圆周和最内圆周之间的物镜的传送线上的预定位置处的轨道的切线方向平行设置，并且通过横向划分来划分多个区域 与分割线相交的第一区域进入主要包括跟踪分量的光束入射的第一区域和不包括跟踪组件的光束入射的第二区域。

公开(公告)号：US20140022882A1

公开(公告)日：2014-01-23

申请号：US14007176

申请日：2012-04-09

申请人： Kousei Sano ,  Tatsuya Takaoka ,  Hidenori Wada ,  Keiichi Matsuzaki

发明人： Kousei Sano ,  Tatsuya Takaoka ,  Hidenori Wada ,  Keiichi Matsuzaki

IPC分类号： G11B7/007

CPC分类号： G11B7/007 ,  B82Y10/00 ,  B82Y20/00 ,  G11B7/0901 ,  G11B7/0938 ,  G11B7/24085

摘要： An optical disc (120) has a first mark (131) disposed at the center of a track, a second mark (132) disposed away from the center of the track in a tracking direction thereof by a distance b1, and disposed away from the first mark (131) in the direction along the track by a distance L, and a third mark (133) disposed away from the center of the track in the tracking direction opposite to that of the second mark (132) by a distance b2, and disposed away from the first mark (131) in the direction along the track by a distance L2. The second and third marks (132) and (133) generate scattered light depending on the distance between a scattering medium (103) and each of the marks by irradiating the scattering medium (103) in an optical information apparatus with light. The distances b1 and b2 are smaller than 50 nm.

摘要翻译： 光盘（120）具有设置在轨道中心的第一标记（131），沿跟踪方向远离轨道中心远离距离b1设置的第二标记（132），远离 沿着轨道的方向上的第一标记（131）距离L;以及第三标记（133），沿着与第二标记（132）的跟踪方向相反的跟踪方向远离轨道的中心距离为b2， 并且沿着轨道的方向远离第一标记（131）远离距离L2。 第二和第三标记（132）和（133）通过在具有光的光学信息装置中照射散射介质（103），根据散射介质（103）和每个标记之间的距离产生散射光。 距离b1和b2小于50nm。

公开(公告)号：US08483034B2

公开(公告)日：2013-07-09

申请号：US13702882

申请日：2011-11-09

申请人： Hidenori Wada ,  Kousei Sano ,  Keiichi Matsuzaki ,  Sadao Mizuno

发明人： Hidenori Wada ,  Kousei Sano ,  Keiichi Matsuzaki ,  Sadao Mizuno

IPC分类号： G11B7/00

CPC分类号： G11B7/13 ,  G11B7/0956 ,  G11B7/131 ,  G11B7/1353 ,  G11B7/1365 ,  G11B7/1387 ,  G11B2007/0013

摘要： An optical pickup, an inclination angle detection method, an optical information device, and an information processing device capable of reliably and accurately detecting a relative inclination angle between an end face of a solid immersion lens and a surface of an optical recording medium are provided. A convergence position modifying unit modifies convergence states of a first beam and a second beam according to layers of an optical recording medium, a first optical detector includes a first light receiving section which receives the converged first beam and a second light receiving section which receives the converged second beam, and the first optical detector detects a relative inclination angle between an end face of a solid immersion lens and a surface of the optical recording medium based on a difference in quantities of received light between the first light receiving section and the second light receiving section.

摘要翻译： 提供能够可靠且准确地检测固体浸没透镜的端面与光记录介质的表面之间的相对倾斜角度的光学拾取器，倾斜角度检测方法，光学信息装置和信息处理装置。 会聚位置修改单元根据光记录介质的层来修改第一光束和第二光束的会聚状态，第一光检测器包括接收会聚的第一光束的第一光接收部分和接收第一光接收部分的第二光接收部分， 会聚第二光束，并且第一光学检测器基于第一光接收部分和第二光线之间的接收光量的差异来检测固体浸没透镜的端面与光记录介质的表面之间的相对倾斜角度 接收部分。

公开(公告)号：US08320227B2

公开(公告)日：2012-11-27

申请号：US13014031

申请日：2011-01-26

申请人： Yoshiaki Komma ,  Kanji Wakabayashi ,  Kousei Sano ,  Toshiyasu Tanaka ,  Keiichi Matsuzaki ,  Hidenori Wada

发明人： Yoshiaki Komma ,  Kanji Wakabayashi ,  Kousei Sano ,  Toshiyasu Tanaka ,  Keiichi Matsuzaki ,  Hidenori Wada

IPC分类号： G11B7/135

CPC分类号： G11B7/1374 ,  G11B2007/0006

摘要： An objective lens unit according to the present invention includes a first objective lens 41; and a first lens holder 2 for supporting the first objective lens 41. The first lens holder 2 is formed of a material which transmits ultraviolet. Preferably, the first lens holder 2 includes a through-hole, having first and second openings 2a and 2b, through which light incident on the first objective lens 41 passes, and an opening limiting section 3 provided along a circumferential direction of the through-hole and projecting toward a central axis of the through-hole. The first objective lens 41 is supported so as to block the first opening 2b. The opening limiting section 3 guides light incident thereon from the second opening 2a in a direction away from an optical axis of the first objective lens.

摘要翻译： 根据本发明的物镜单元包括第一物镜41; 以及用于支撑第一物镜41的第一透镜保持器2.第一透镜保持器2由透射紫外线的材料形成。 优选地，第一透镜保持件2包括通孔，具有入射在第一物镜41上的光通过的第一和第二开口2a和2b以及沿着通孔的周向设置的开口限制部3 并朝向通孔的中心轴突出。 第一物镜41被支撑以阻挡第一开口2b。 开口限制部3在远离第一物镜的光轴的方向上引导从第二开口2a入射的光。

公开(公告)号：US08295150B2

公开(公告)日：2012-10-23

申请号：US13071914

申请日：2011-03-25

申请人： Kousei Sano ,  Yoshiaki Komma ,  Yasumori Hino

发明人： Kousei Sano ,  Yoshiaki Komma ,  Yasumori Hino

IPC分类号： G11B3/70 ,  G11B7/00 ,  B32B3/02 ,  G01B11/28 ,  G01B9/02

CPC分类号： G11B7/268 ,  G11B7/00375 ,  G11B2007/0013

摘要： Described is an optical information medium measurement method of measuring a degree of modulation in an optical information medium of a multilayered structure having a plurality of information layers. The method includes measuring the modulation degree of each layer of the optical information medium, by use of a measurement optical system, obtaining a thickness between layers of the optical information medium, obtaining a reflectance of each layer of the optical information medium, and converting the measured modulation degree of each layer into a modulation degree at a reference optical system differing from the measurement optical system, based on a value indicative of the obtained thickness between layers and a value indicative of the obtained reflectance of each layer.

摘要翻译： 描述了一种测量具有多个信息层的多层结构的光学信息介质中的调制度的光学信息介质测量方法。 该方法包括通过使用测量光学系统来测量光信息介质的每层的调制度，获得光信息介质的层之间的厚度，获得光信息介质的每一层的反射率，并将 基于指示层之间获得的厚度的值和表示所获得的各层反射率的值，将每层的测量调制度调整为与测量光学系统不同的参考光学系统的调制度。

公开(公告)号：US08259554B2

公开(公告)日：2012-09-04

申请号：US12680917

申请日：2008-10-01

申请人： Kousei Sano ,  Hirotaka Ueno

发明人： Kousei Sano ,  Hirotaka Ueno

IPC分类号： G11B7/00

CPC分类号： G11B7/0903 ,  G11B7/1275 ,  G11B7/1353 ,  G11B2007/0006

摘要： An optical head device includes a diffraction grating which diffracts a part of the light beam which is selectively emitted from a semiconductor laser having two luminous points and is divided along a tangential direction of the track of the optical disk, a relationship of arrangement of the second and third regions corresponds to a relationship of the optical axes of the first and second light beams on the diffraction grating, the second region is located at a position crossing an optical axis of the first light beam, a phase difference between phases of the first and third regions is 180°, a phase difference between phases of the third and fourth regions is 180°, and the third region has a width which is not larger than amount of a position deviation of ±first-order diffracted light of the second light beam from zeroth-order diffracted light.

摘要翻译： 光头装置包括：衍射光栅，该衍射光栅衍射自具有两个发光点的半导体激光器选择性地发射并沿着光盘的轨道的切线方向分割的光束的一部分，第二 并且第三区域对应于衍射光栅上的第一和第二光束的光轴的关系，第二区域位于与第一光束的光轴交叉的位置，第一和第二光束的相位之间的相位差 第三区域为180°，第三区域和第四区域的相位之间的相位差为180°，第三区域的宽度不大于第二光束的±一级衍射光的位置偏移量 从零级衍射光。

公开(公告)号：US20120170431A1

公开(公告)日：2012-07-05

申请号：US13391115

申请日：2011-06-16

申请人： Yoshiaki Komma ,  Kousei Sano

发明人： Yoshiaki Komma ,  Kousei Sano

IPC分类号： G11B7/00

CPC分类号： G11B7/1275 ,  G11B7/1353 ,  G11B7/1367 ,  G11B7/1381 ,  G11B2007/0013

摘要： An optical head device includes a light blocking region (7y) which is disposed on a light flux of a reflected light beam resulting from reflection by a recording layer on which a blue light beam is focused, and blocks, when there are at least two recording layers on a blue light beam incident side of the recording layer on which the blue light beam is focused or on a side thereof opposite to the blue light beam incident side, reflected light beams resulting from reflection by the at least two recording layers which are incident on a region in a photodetector (9) where the reflected light beams resulting from the reflection by the at least two recording layers interfere with each other. The light blocking region (7y) is not formed on an optical axis of the reflected light beam resulting from the reflection by the recording layer on which the blue light beam is focused. This configuration allows an improvement in the S/N ratio of a signal outputted from the photodetector.

摘要翻译： 光头装置包括遮光区域（7y），该遮光区域设置在被蓝色光束聚焦的记录层的反射产生的反射光束的光束上，并且当存在至少两个记录时 在蓝色光束聚焦的记录层的蓝色光束入射侧或其与蓝色光束入射侧相反的一侧上的层，由入射的至少两个记录层的反射产生的反射光束 在由所述至少两个记录层的反射产生的反射光束彼此干涉的光电检测器（9）中的区域上。 遮光区域（7y）不形成在被蓝色光束聚焦的记录层的反射所产生的反射光束的光轴上。 该配置允许改善从光电检测器输出的信号的S / N比。