公开(公告)号：US07518976B2

公开(公告)日：2009-04-14

申请号：US10543537

申请日：2004-01-27

申请人： Kousei Sano ,  Yoshiaki Komma ,  Toshiyasu Tanaka

发明人： Kousei Sano ,  Yoshiaki Komma ,  Toshiyasu Tanaka

IPC分类号： G11B7/13

CPC分类号： G11B7/1381 ,  G11B7/131 ,  G11B7/1353 ,  G11B2007/0006 ,  G11B2007/0013

摘要： The present invention is provided with a detection region for detecting light that is reflected from a first or a second information recording medium and that passes through an optical element. The first information recording medium and the second information recording media are multi-layer disks that have at least two layers, and the detection region includes a detection region (41) for detecting first order and above diffracted light that has a first wavelength, and a detection region (42) for detecting first order and above diffracted light that has a second wavelength. The detection region (41) is arranged such that it does not straddle across a region that is divided by a maximum range (38) of the dilation of zero order light coming from the first information recording medium that comes from a recording layer that differs from the recording layer that is to be recorded or reproduced, and the detection region (42) is arranged such that it does not straddle across a region that is divided by a maximum range (39) of the dilation of zero order light coming from the second information recording medium that comes from a recording layer that differs from the recording layer that is to be recorded or reproduced.

摘要翻译： 本发明提供一种用于检测从第一或第二信息记录介质反射并通过光学元件的光的检测区域。 第一信息记录介质和第二信息记录介质是具有至少两层的多层盘，检测区域包括用于检测具有第一波长的一级及以上衍射光的检测区域（41），以及 检测区域（42），用于检测具有第二波长的一级及以上衍射光。 检测区域（41）被布置成使得它不跨越从来自不同于第一信息记录介质的记录层的第一信息记录介质的零级光扩展的最大范围（38）的区域 要记录或再现的记录层，并且检测区域（42）被布置成使得它不跨越从第二个光源的零级光的扩张的最大范围（39）除以的区域 信息记录介质，其来自与要记录或再现的记录层不同的记录层。

公开(公告)号：US20060077550A1

公开(公告)日：2006-04-13

申请号：US10543537

申请日：2004-01-27

申请人： Kousei Sano ,  Yoshiaki Komma ,  Toshiyasu Tanaka

发明人： Kousei Sano ,  Yoshiaki Komma ,  Toshiyasu Tanaka

IPC分类号： G02B27/42 ,  G02B5/18

CPC分类号： G11B7/1381 ,  G11B7/131 ,  G11B7/1353 ,  G11B2007/0006 ,  G11B2007/0013

摘要： The present invention is provided with a detection region for detecting light that is reflected from a first or a second information recording medium and that passes through an optical element. The first information recording medium and the second information recording media are multi-layer disks that have at least two layers, and the detection region includes a detection region (41) for detecting first order and above diffracted light that has a first wavelength, and a detection region (42) for detecting first order and above diffracted light that has a second wavelength. The detection region (41) is arranged such that it does not straddle across a region that is divided by a maximum range (38) of the dilation of zero order light coming from the first information recording medium that comes from a recording layer that differs from the recording layer that is to be recorded or reproduced, and the detection region (42) is arranged such that it does not straddle across a region that is divided by a maximum range (39) of the dilation of zero order light coming from the second information recording medium that comes from a recording layer that differs from the recording layer that is to be recorded or reproduced.

摘要翻译： 本发明提供一种用于检测从第一或第二信息记录介质反射并通过光学元件的光的检测区域。 第一信息记录介质和第二信息记录介质是具有至少两层的多层盘，检测区域包括用于检测具有第一波长的一级及以上衍射光的检测区域（41），以及 检测区域（42），用于检测具有第二波长的一级及以上衍射光。 检测区域（41）被布置成使得它不跨越从来自不同于第一信息记录介质的记录层的第一信息记录介质的零级光扩展的最大范围（38）的区域 要记录或再现的记录层，并且检测区域（42）被布置成使得它不跨越从第二个光源的零级光的扩张的最大范围（39）除以的区域 信息记录介质，其来自与要记录或再现的记录层不同的记录层。

公开(公告)号：US20050237639A1

公开(公告)日：2005-10-27

申请号：US11114775

申请日：2005-04-26

申请人： Toshiyasu Tanaka ,  Yoshiaki Komma ,  Kousei Sano ,  Akihiro Arai

发明人： Toshiyasu Tanaka ,  Yoshiaki Komma ,  Kousei Sano ,  Akihiro Arai

IPC分类号： G02B3/00 ,  G02B3/06 ,  G02B5/04 ,  G02B7/02 ,  G11B7/135 ,  G11B7/22

CPC分类号： G11B7/1398 ,  G11B7/1378 ,  G11B7/13922 ,  G11B7/22 ,  G11B2007/13727

摘要： A beam shaping lens for shaping an incident beam having an elliptic cross section into an outgoing beam having a substantially circular cross section includes a first plane which is a cylindrical surface having a generating line curving to form a non-circular cylindrical surface as an incidence side of the incident beam and a second plane which is a circular cylindrical surface as an outgoing side of the outgoing beam. The distance between both ends of the generating line of the circular cylindrical surface is larger than the distance between both ends of the generating line of the non-circular cylindrical surface.

摘要翻译： 用于将具有椭圆形截面的入射光束成形为具有基本圆形横截面的输出光束的光束整形透镜包括：第一平面，其是具有弯曲形成非圆形圆柱形表面的发生线弯曲的圆柱形表面，作为入射侧 的入射光束和作为出射光束的出射侧的圆柱形表面的第二平面。 圆筒形表面的生成线的两端之间的距离大于非圆柱形表面的生成线的两端之间的距离。

公开(公告)号：US20140010058A1

公开(公告)日：2014-01-09

申请号：US14005376

申请日：2012-04-11

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

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

IPC分类号： G11B27/36

CPC分类号： G11B27/36 ,  B82Y20/00 ,  G11B7/0908 ,  G11B7/1353 ,  G11B7/1367 ,  G11B7/1374 ,  G11B7/1381 ,  G11B7/1387 ,  G11B2007/13727

摘要： An optical information device is provided with a first scattering medium (9), a second scattering medium (10), a third scattering medium (11); a diffraction element (4) which generates a plurality of light beams; an objective lens (6) which guides, to the first scattering medium (9) and to the third scattering medium (11) out of the first scattering medium (9), the second scattering medium (10), and the third scattering medium (11), two light beams out of the plurality of the light beams; and an arithmetic circuit (17) which detects a gap interval between the first scattering medium (9) and the third scattering medium (11), and an information medium (12), based on a change in an amount of reflected light from the first scattering medium (9) and from the third scattering medium (11).

摘要翻译： 光信息装置设置有第一散射介质（9），第二散射介质（10），第三散射介质（11）。 产生多个光束的衍射元件（4）; 从第一散射介质（9）向第一散射介质（9）和第三散射介质（11）引出第二散射介质（10）和第三散射介质（6）的物镜（6） 11），多个光束中的两个光束; 以及检测第一散射介质（9）和第三散射介质（11）之间的间隙的运算电路（17），以及基于来自第一散射介质（9）的反射光的变化的信息介质 散射介质（9）和第三散射介质（11）。

公开(公告)号：US20130083645A1

公开(公告)日：2013-04-04

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： G11B7/13

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：US08228774B2

公开(公告)日：2012-07-24

申请号：US12559740

申请日：2009-09-15

申请人： Kousei Sano ,  Yoshiaki Komma ,  Yasumori Hino

发明人： Kousei Sano ,  Yoshiaki Komma ,  Yasumori Hino

IPC分类号： G11B7/242 ,  G11B3/70 ,  G11B7/24 ,  G11B7/00 ,  B32B3/02 ,  G01B11/28 ,  G01N21/55

CPC分类号： G11B7/0037 ,  G01B11/06 ,  G11B2007/0013

摘要： An optical information medium measurement method measures 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, obtaining a thickness between layers of the optical information medium, obtaining a reflectance of each layer of the optical information medium, and converting the modulation degree of each layer. The modulation degree is measured based on a value indicative of the thickness between layers, and a value indicative of the reflectance of each layer.

摘要翻译： 光信息介质测量方法测量具有多个信息层的多层结构的光信息介质中的调制度。 该方法包括测量光信息介质的各层的调制度，获得光信息介质的层之间的厚度，获得光信息介质的各层的反射率，以及转换各层的调制度。 基于表示层之间的厚度的值和表示各层的反射率的值来测量调制度。

公开(公告)号：US08068403B2

公开(公告)日：2011-11-29

申请号：US12090144

申请日：2006-10-13

申请人： Takayuki Nagata ,  Joji Anzai ,  Hideki Aikoh ,  Eishin Mori ,  Kousei Sano ,  Yoshiaki Komma ,  Akihiro Arai

发明人： Takayuki Nagata ,  Joji Anzai ,  Hideki Aikoh ,  Eishin Mori ,  Kousei Sano ,  Yoshiaki Komma ,  Akihiro Arai

IPC分类号： G11B7/00

CPC分类号： G11B7/133 ,  G11B7/0908 ,  G11B7/1381 ,  G11B2007/0013

摘要： To provide an optical head to produce good servo and read signals by reducing the influence of interference by light reflected from a non-read layer of a multilayer optical disc.The head includes: a first optical system for converging light from a light source on a first or second storage layer; a second optical system for receiving and transmitting light reflected from the first layer and stray light reflected from the second layer when the light is converged on the first layer; a photodetector; and a calculator. The photosensitive areas of the photodetector output signals representing intensities of the light incident there through the second system. The reflected and stray light incident on the second system interfere with each other, and the first and second groups of areas are arranged so as to be equally affected by a variation in intensity caused by the interference. The calculator calculates the difference between sum of a first group of signals supplied from a first group of areas and that of a second group of signals supplied from a second group of areas, thereby generating a focus error signal.

摘要翻译： 通过减少由多层光盘的非读取层反射的光的干扰的影响来提供光学头来产生良好的伺服和读取信号。 头部包括：第一光学系统，用于将来自光源的光聚焦在第一或第二存储层上; 第二光学系统，用于当所述光会聚在所述第一层上时，接收和发射从所述第一层反射的光和从所述第二层反射的杂散光; 光检测器; 和一个计算器。 光电检测器的光敏区域输出表示通过第二系统入射到那里的光的强度的信号。 入射在第二系统上的反射和杂散光彼此干涉，并且第一和第二组区域被布置成等同地受到由干涉引起的强度变化的影响。 计算器计算从第一组区域提供的第一组信号和从第二组区域提供的第二组信号的第一组信号的和之间的差，从而产生聚焦误差信号。

公开(公告)号：US20110122744A1

公开(公告)日：2011-05-26

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： G11B7/09 ,  G01C21/00

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.

公开(公告)号：US07944798B2

公开(公告)日：2011-05-17

申请号：US12064360

申请日：2006-08-24

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： G11B7/00

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：US20100208568A1

公开(公告)日：2010-08-19

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： G11B7/135

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。