公开(公告)号：US07184384B2

公开(公告)日：2007-02-27

申请号：US10512188

申请日：2003-04-18

申请人： Tetsuo Ueyama ,  Keiji Sakai ,  Renzaburou Miki ,  Osamu Miyazaki ,  Yukio Watanabe

发明人： Tetsuo Ueyama ,  Keiji Sakai ,  Renzaburou Miki ,  Osamu Miyazaki ,  Yukio Watanabe

IPC分类号： G11B7/00

CPC分类号： G11B7/1353 ,  G11B7/0903 ,  G11B7/0956

摘要： An optical pickup converts a laser beam from a semiconductor laser (1) into a parallel ray with a collimator lens (2), and divides it into a main beam (30), a sub-beam (+1st order component) (31), and a sub-beam (−1st order component) (32) with a gradient multiple-division type phase difference grating (3). After passing through a beam splitter (4), an objective lens (5) condenses the light beams on a track (61) of an optical disc (6), and the reflected light that has passed through the objective lens 5 is reflected at the beam splitter (4) and is guided into optical detectors (8A, 8B, and 8C) by a condensing lens (7). Accordingly, in a tracking error signal detecting method using the push-pull signals of the main beam and sub-beams, an offset produced by an objective lens shift or a disc tilt can be cancelled at low cost without lowering the efficiency of using light.

摘要翻译： 光学拾取器将来自半导体激光器（1）的激光束用准直透镜（2）转换成平行光线，并将其分割成主光束（30），子光束（+ 1次分量）（31） ，和具有梯度多分割型相位差光栅（3）的子光束（-1阶分量）（32）。 在通过分束器（4）之后，物镜（5）将光束会聚在光盘（6）的轨道（61）上，并且已经通过物镜5的反射光在 分束器（4），并通过聚光透镜（7）被引导到光学检测器（8A，8B和8C）中。 因此，在使用主光束和子光束的推挽信号的跟踪误差信号检测方法中，可以以低成本消除由物镜偏移或盘倾斜产生的偏移而不降低使用光的效率。

公开(公告)号：US20050180293A1

公开(公告)日：2005-08-18

申请号：US10512188

申请日：2003-04-18

申请人： Tetsuo Ueyama ,  Keiji Sakai ,  Renzaburou Miki ,  Osamu Miyazaki ,  Yukio Watanabe

发明人： Tetsuo Ueyama ,  Keiji Sakai ,  Renzaburou Miki ,  Osamu Miyazaki ,  Yukio Watanabe

IPC分类号： G11B7/1353 ,  G11B7/09 ,  G11B7/095 ,  G11B7/00

CPC分类号： G11B7/1353 ,  G11B7/0903 ,  G11B7/0956

摘要： An optical pickup converts a laser beam from a semiconductor laser (1) into a parallel ray with a collimator lens (2), and divides it into a main beam (30), a sub-beam (+1st order component) (31), and a sub-beam (−1st order component) (32) with a gradient multiple-division type phase difference grating (3). After passing through a beam splitter (4), an objective lens (5) condenses the light beams on a track (61) of an optical disc (6), and the reflected light that has passed through the objective lens 5 is reflected at the beam splitter (4) and is guided into optical detectors (8A, 8B, and 8C) by a condensing lens (7). Accordingly, in a tracking error signal detecting method using the push-pull signals of the main beam and sub-beams, an offset produced by an objective lens shift or a disc tilt can be cancelled at low cost without lowering the efficiency of using light.

摘要翻译： 光学拾取器将来自半导体激光器（1）的激光束用准直透镜（2）转换成平行光线，并将其分割成主光束（30），子光束（+ 1次分量）（31） ，和具有梯度多分割型相位差光栅（3）的子光束（-1阶分量）（32）。 在通过分束器（4）之后，物镜（5）将光束会聚在光盘（6）的轨道（61）上，并且已经通过物镜5的反射光在 分束器（4），并通过聚光透镜（7）被引导到光学检测器（8A，8B和8C）中。 因此，在使用主光束和子光束的推挽信号的跟踪误差信号检测方法中，可以以低成本消除由物镜偏移或盘倾斜产生的偏移而不降低使用光的效率。

公开(公告)号：US08189434B2

公开(公告)日：2012-05-29

申请号：US11579127

申请日：2005-04-27

申请人： Osamu Miyazaki ,  Keiji Sakai ,  Yukio Watanabe

发明人： Osamu Miyazaki ,  Keiji Sakai ,  Yukio Watanabe

IPC分类号： G11B7/00 ,  G11B7/135

CPC分类号： G11B7/1353 ,  G11B7/0903 ,  G11B7/0943 ,  G11B7/131 ,  G11B2007/0013

摘要： An optical pickup device includes: a splitting section for splitting a beam; a light-receiving section for receiving the split beams. The light-receiving section includes: a tracking-use main light-receiving region and tracking-use sub light-receiving regions, and auxiliary light-receiving regions. Each of the auxiliary light-receiving regions receives only a light beam reflected off a recording layer other than a recording layer subjected to an information writing/reading process. A light-receiving area of each of the auxiliary light-receiving area is smaller than a light-receiving area of each tracking-use light-receiving region. Further, an optical pickup device includes: a splitting section for splitting a beam; and a light-receiving section for receiving the split beams. The light-receiving section includes a sub light-receiving regions for receiving tracking-use sub beams. The tracking-use sub beams are arranged so as not to allow entering of a focusing-use main beam reflected off a non-targeted recording layer.

摘要翻译： 一种光学拾取装置，包括：用于分割光束的分离部分; 用于接收分束的光接收部分。 光接收部分包括：跟踪用主光接收区域和跟踪用子光接收区域以及辅助光接收区域。 每个辅助光接收区域仅接收经过信息写入/读取处理的记录层以外的记录层反射的光束。 每个辅助光接收区域的光接收区域小于每个跟踪用光接收区域的光接收区域。 此外，光学拾取装置包括：用于分割光束的分离部分; 以及用于接收分束的光接收部分。 光接收部分包括用于接收跟踪用子束的子光接收区域。 跟踪使用子光束被布置成不允许从非目标记录层反射的聚焦用主光束的进入。

公开(公告)号：US20080062826A1

公开(公告)日：2008-03-13

申请号：US11579127

申请日：2005-04-27

申请人： Osamu Miyazaki ,  Keiji Sakai ,  Yukio Watanabe

发明人： Osamu Miyazaki ,  Keiji Sakai ,  Yukio Watanabe

IPC分类号： G11B7/00

CPC分类号： G11B7/1353 ,  G11B7/0903 ,  G11B7/0943 ,  G11B7/131 ,  G11B2007/0013

摘要： An optical pickup device includes: a splitting section for splitting a beam; a light-receiving section for receiving the split beams. The light-receiving section includes: a tracking-use main light-receiving region and tracking-use sub light-receiving regions, and auxiliary light-receiving regions. Each of the auxiliary light-receiving regions receives only a light beam reflected off a recording layer other than a recording layer subjected to an information writing/reading process. A light-receiving area of each of the auxiliary light-receiving area is smaller than a light-receiving area of each tracking-use light-receiving region. Further, an optical pickup device includes: a splitting section for splitting a beam; and a light-receiving section for receiving the split beams. The light-receiving section includes a sub light-receiving regions for receiving tracking-use sub beams. The tracking-use sub beams are arranged so as not to allow entering of a focusing-use main beam reflected off a non-targeted recording layer.

摘要翻译： 一种光学拾取装置，包括：用于分割光束的分离部分; 用于接收分束的光接收部分。 光接收部分包括：跟踪用主光接收区域和跟踪用子光接收区域以及辅助光接收区域。 每个辅助光接收区域仅接收经过信息写入/读取处理的记录层以外的记录层反射的光束。 每个辅助光接收区域的光接收区域小于每个跟踪用光接收区域的光接收区域。 此外，光学拾取装置包括：用于分割光束的分离部分; 以及用于接收分束的光接收部分。 光接收部分包括用于接收跟踪用子束的子光接收区域。 跟踪使用子光束被布置成不允许进入从非目标记录层反射的聚焦用主光束。

公开(公告)号：US20080018969A1

公开(公告)日：2008-01-24

申请号：US10586021

申请日：2005-01-11

申请人： Keiji Sakai ,  Renzaburoh Miki ,  Yukio Watanabe ,  Osamu Miyazaki

发明人： Keiji Sakai ,  Renzaburoh Miki ,  Yukio Watanabe ,  Osamu Miyazaki

IPC分类号： G02B5/32

CPC分类号： G11B7/1365 ,  G11B7/123 ,  G11B7/1275 ,  G11B7/1353 ,  G11B7/1372 ,  G11B7/1381 ,  G11B2007/0006

摘要： An optical integrated unit includes a light-emitting portion for emitting a plurality of laser beams having different wavelengths, a wave plate, a polarization hologram element for diffracting a first laser beam emitted from a light source, and a non-polarization hologram element for diffracting a second laser beam emitted from a light source. Wave plate is formed to act as a λ/4 plate for the first laser beam and act as a λ plate or a λ/2 plate for the second laser beam.

摘要翻译： 光学集成单元包括用于发射具有不同波长的多个激光束的发光部分，波片，用于衍射从光源发射的第一激光束的偏振全息元件和用于衍射的非偏振全息元件 从光源发射的第二激光束。 波片形成为用作第一激光束的λ/ 4板，并用作第二激光束的λ板或λ/ 2板。

公开(公告)号：US20070159954A1

公开(公告)日：2007-07-12

申请号：US10589739

申请日：2005-01-28

申请人： Keiji Sakai ,  Renzaburoh Miki ,  Yukio Watanabe ,  Osamu Miyazaki

发明人： Keiji Sakai ,  Renzaburoh Miki ,  Yukio Watanabe ,  Osamu Miyazaki

IPC分类号： G11B7/00

CPC分类号： G11B7/1275 ,  G11B7/123

摘要： In a light-emitting section (2) for emitting semiconductor laser for CD (4) and semiconductor laser for DVD (5), a radiation angle width θ2 of the DVD semiconductor laser (5) is at least 1.3 times a radiation angle width θ1 of the CD semiconductor laser (4), said radiation angle width being defined as a width of an angle created by two straight lines, which extend respectively from a laser-emitting point to two points where a radiation intensity of laser becomes half of an intensity of the center of laser, which points reside within a plane parallel to a pn junction plane.

摘要翻译： 在用于发射用于CD（4）的半导体激光器和DVD（5）的半导体激光器的发光部分（2）中，DVD半导体激光器（5）的辐射角宽度θ2至少为辐射角宽度的1.3倍 所述辐射角宽度被定义为由两条直线产生的角度的宽度，所述两条直线分别从激光发射点延伸到两点，其中激光的辐射强度变为 激光中心的强度位于平行于pn结面的平面内。

公开(公告)号：US07315502B2

公开(公告)日：2008-01-01

申请号：US10478263

申请日：2002-11-05

申请人： Keiji Sakai ,  Takahiro Miyake ,  Tetsuo Ueyama ,  Renzaburo Miki ,  Hiroshige Makioka ,  Noboru Fujita ,  Osamu Miyazaki

发明人： Keiji Sakai ,  Takahiro Miyake ,  Tetsuo Ueyama ,  Renzaburo Miki ,  Hiroshige Makioka ,  Noboru Fujita ,  Osamu Miyazaki

IPC分类号： G11B7/135

CPC分类号： G11B7/1353 ,  G11B7/0901 ,  G11B7/094 ,  G11B7/123 ,  G11B7/131

摘要： An object of the present invention is to attain stable tracking servo performance by suppressing an offset caused by a shift of an object lens or a tilt of a disk, despite the one-beam method which does not cause reduction in light quantity of the main beam. A diffraction grating is provided between a hologram and a light receiving section, and a diffraction efficiency of the diffraction grating is varied in a grating longitudinal direction. For example, if an incident light beam on the diffraction grating is shifted in the grating longitudinal direction, the quantity of received light in each light receiving section varies to cause offset. By performing tracking servo so as to cancel the change, it is possible to correct the offset, thereby attaining stable tracking servo performance.

摘要翻译： 本发明的目的是通过抑制由于物镜的偏移引起的偏移或盘的倾斜而获得稳定的跟踪伺服性能，尽管不会导致主光束的光量的减小的单光束方法 。 在全息图和光接收部之间设置衍射光栅，衍射光栅的衍射效率在光栅长度方向上变化。 例如，如果衍射光栅上的入射光束在光栅长度方向上移动，则每个光接收部分中的接收光量变化，导致偏移。 通过执行跟踪伺服以消除变化，可以校正偏移，从而获得稳定的跟踪伺服性能。

公开(公告)号：US20140047903A1

公开(公告)日：2014-02-20

申请号：US14113288

申请日：2012-05-11

申请人： Keiji Sakai

发明人： Keiji Sakai

IPC分类号： G01N11/14

CPC分类号： G01N11/14 ,  G01N2011/147

摘要： A viscosity/elasticity measurement device includes a container for containing a measurement target material for detection of viscosity/elasticity is contained, a floating rotor made of material including a conductor, formed in a plate and circular shape when seen in plan view, and configured to be floated on a surface of the measurement target material, a magnet applying a magnetic field to the floating rotor in a direction perpendicular to a surface of the measurement target material, a rotational magnetic field control unit driving the magnet to apply a rotational magnetic field to the floating rotor, inducing an induction current in the conductor, and applying rotational torque to the floating rotor to rotate by Lorentz interaction between the induction current and the magnetic field applied to the floating rotor, and a viscosity detection unit detecting the viscosity/elasticity of the measurement target material based on a rotation state of the floating rotor.

摘要翻译： 粘度/弹性测量装置包括用于容纳用于检测粘度/弹性的测量目标材料的容器，当在平面图中观察时形成为板状和圆形的由包括导体的材料制成的浮动转子，并且构造成 漂浮在测量对象材料的表面上，磁体在垂直于测量对象材料的表面的方向上对浮动转子施加磁场;旋转磁场控制单元，驱动磁体以将旋转磁场施加到 所述浮动转子在所述导体中感应感应电流，并且通过所述感应电流与施加到所述浮动转子的磁场之间的洛伦兹相互作用向所述浮动转子施加旋转转矩，以及检测所述浮动转子的粘度/弹性的粘度检测单元 所述测量对象材料基于所述浮动转子的旋转状态。

公开(公告)号：US08365582B2

公开(公告)日：2013-02-05

申请号：US12989612

申请日：2009-04-23

申请人： Keiji Sakai

发明人： Keiji Sakai

IPC分类号： G01N11/14

CPC分类号： G01N11/14 ,  G01N2011/147

摘要： An apparatus of measuring viscosity and/or elasticity comprising: an electro-conductive rotor; a container that contains a sample and the rotor such that the rotor is arranged in the sample; a magnet unit that is arranged in the surrounding of the container and applies a magnetic field to the rotor; a rotation controlling unit that drives the magnet unit to apply a rotating magnetic field to the rotor so as to induce induced current in the rotor and rotate the rotor by providing the rotor with a rotation torque caused by Lorentz interaction between the induced current and the magnetic field applied to the rotor; a rotation detection unit that detects the rotation of the rotor; and a dynamic property detection unit that detects viscosity and/or elasticity of the sample being in contact with the rotor based on the rotation torque and the rotational movement.

摘要翻译： 一种测量粘度和/或弹性的装置，包括：导电转子; 包含样品和转子的容器，使得转子布置在样品中; 磁体单元，布置在容器的周围并向转子施加磁场; 旋转控制单元，其驱动所述磁体单元向所述转子施加旋转磁场，以在所述转子中感应感应电流，并且通过向所述转子提供由所述感应电流和所述磁场之间的洛伦兹相互作用引起的旋转转矩而使所述转子旋转 现场应用于转子; 旋转检测单元，其检测所述转子的旋转; 以及动态特性检测单元，其基于旋转扭矩和旋转运动来检测与转子接触的样品的粘度和/或弹性。

公开(公告)号：US07882942B2

公开(公告)日：2011-02-08

申请号：US12068155

申请日：2008-02-04

申请人： Keiji Sakai ,  Eiko Hibari

发明人： Keiji Sakai ,  Eiko Hibari

IPC分类号： G07D5/08

CPC分类号： G07D1/06 ,  G07D9/02 ,  G07G1/0027

摘要： A coin bar storage of the invention includes: a casing; a coin bar tray that is provided in the casing so as to be drawn out from and stored into the casing, and that has a plurality of set sections in which set coin types are respectively pre-set to assign a coin type to each of the set sections; a set coin type presence confirmation section that is provided in all of the set sections of the coin bar tray, that respectively confirms whether or not coin bars of the set coin types is set, and that outputs a confirmation result; and a management section that manages a present amount of coin bars in the coin bar tray based on the confirmation result from the set coin type presence confirmation section.

摘要翻译： 本发明的硬币棒存储器包括：壳体; 一个硬币棒托盘，其设置在壳体中以便从外壳中拉出并存储到壳体中，并且具有多个设定部分，其中设定的硬币类型分别预先设定为向每个部件分配硬币类型 设置部分; 设置在所述硬币棒托盘的所有设定部分中的硬币类存在确认部分，分别确认所设定的硬币类型的硬币条是否被设置，并且输出确认结果; 以及管理部，其基于来自所设定的硬币类型存在确认部的确认结果来管理硬币棒托盘中的硬币棒的当前量。