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    HOLOGRAM RECORDING DEVICE
    21.
    发明申请
    HOLOGRAM RECORDING DEVICE 审中-公开
    HOLOGRAM记录装置

    公开(公告)号：US20090128874A1

    公开(公告)日：2009-05-21

    申请号：US12356795

    申请日：2009-01-21

    申请人： Yasumasa Iwamura ,  Kazushi Uno ,  Koichi Tezuka ,  Hiroyasu Yoshikawa ,  Yuzuru Yamakage

    发明人： Yasumasa Iwamura ,  Kazushi Uno ,  Koichi Tezuka ,  Hiroyasu Yoshikawa ,  Yuzuru Yamakage

    IPC分类号： G03H1/26

    CPC分类号： G03H1/26 ,  G03H1/265 ,  G03H2240/51 ,  G11B7/00772 ,  G11B7/1367 ,  G11B7/1369 ,  G11B2007/13727

    摘要： A hologram recording device (A1) includes a laser (1), a beam splitter (3) splitting the laser beam from the laser (1) into recording and reference beams (S), (R), a spatial light modulator (5) modulating the recording beam (S) by record information, a recording opto-system directing the modulated beam (S) to a target site of a hologram recording medium (B), and a reference opto-system directing the reference beam (R) to the target site of the recording medium (B) for interference with the recording beam (S) through difference incident angles. The beam (S)-beam (R) interference enables multiplex hologram recording at the target site. The device (A1) further includes a light amount adjustor (8) that adjusts the amount of the reference beam (R) from the splitter (3) based on the incident angle to the recording medium (B) for keeping the illuminance of the reference beam (R) at the target site at a predetermined level.

    摘要翻译： 全息记录装置（A1）包括激光器（1），将激光束（1）的激光束分割为记录和参考光束（S），（R），空间光调制器（5） 通过记录信息调制记录光束（S），将调制光束（S）指向全息图记录介质（B）的目标位置的记录光学系统，以及将参考光束（R）引导到 用于通过差异入射角与记录光束（S）干涉的记录介质（B）的目标位置。 波束（S）波束（R）干扰使得能够在目标位置处进行复用全息图记录。 装置（A1）还包括光量调节器（8），该光量调节器（8）基于与记录介质（B）的入射角度调整来自分离器（3）的参考光束（R）的量，用于保持基准的照度 在目标位置处的光束（R）处于预定水平。

    Optical disk apparatus with fine tracking mechanism
    22.
    发明授权
    Optical disk apparatus with fine tracking mechanism 失效
    具有精细跟踪机构的光盘设备

    公开(公告)号：US07039926B2

    公开(公告)日：2006-05-02

    申请号：US10136988

    申请日：2002-05-02

    申请人： Koichi Tezuka ,  Hitoshi Komoriya

    发明人： Koichi Tezuka ,  Hitoshi Komoriya

    IPC分类号： G11B7/00

    CPC分类号： G11B7/1374 ,  G11B7/08582 ,  G11B7/0929 ,  G11B7/0937 ,  G11B7/122 ,  G11B11/10554 ,  G11B11/10571 ,  G11B11/10576 ,  G11B11/1058 ,  G11B2007/13727

    摘要： An optical disk apparatus includes an objective lens system for producing a beam spot on an optical disk, a slider movable relative to the optical disk, and a fine tracking mechanism for shifting the beam spot in a radial direction of the optical disk. The objective lens system is composed of a first lens and a second lens. The second lens is held by the slider and disposed closer to the optical disk than the first lens is. The tracking mechanism shifts the second lens in the radial direction of the optical disk for tracking control.

    摘要翻译： 光盘装置包括：用于在光盘上产生光斑的物镜系统，可相对于光盘移动的滑块;以及用于沿光盘的径向移动光束点的精细跟踪机构。 物镜系统由第一透镜和第二透镜构成。 第二透镜由滑块保持，并且比第一透镜更靠近光盘。 跟踪机构使第二透镜在光盘的径向方向上移动，用于跟踪控制。

    Floating slider, and magneto-optical storage device comprising it
    24.
    发明申请
    Floating slider, and magneto-optical storage device comprising it 审中-公开
    浮动滑块和包括它的磁光存储装置

    公开(公告)号：US20050078564A1

    公开(公告)日：2005-04-14

    申请号：US10502304

    申请日：2002-01-22

    申请人： Goro Kawasaki ,  Koichi Tezuka

    发明人： Goro Kawasaki ,  Koichi Tezuka

    IPC分类号： G11B5/39 ,  G11B5/60 ,  G11B21/21 ,  G11B11/00

    CPC分类号： G11B5/39 ,  G11B5/6082

    摘要： A floating slider (1) includes an opposing face (11) opposed to a storage medium (Dc). The opposing face (11) has a crown surface (7) like an outer columnar surface having an axis extending radially of the storage medium. The floating slider (1) is floated off the storage medium (Dc) by air flowing in between the storage medium (Dc) and the opposing surface (11). In the floating slider (1), the following expression is satisfied where d represents a crown thickness defined as a distance from an vertex of an arc in a section of the crown surface (7) to a chord of the arc, and L represents a slider length defined as a length of the opposing face parallel to the chord: 250(nm/mm)×L(mm)≦d(nm)≦250(nm/mm)×L(mm)+1500(mm)

    摘要翻译： 浮动滑块（1）包括与存储介质（Dc）相对的相对面（11）。 相对面（11）具有像具有沿着存储介质的径向延伸的轴线的外圆柱表面的冠表面（7）。 浮动滑块（1）通过在存储介质（Dc）和相对表面（11）之间流动的空气从存储介质（Dc）浮出。 在浮动滑块（1）中，满足以下表达式，其中d表示在冠部表面（7）的一部分中的弧的顶点到弧的弦之间的距离，并且L表示 滑块长度定义为平行于弦的相对面的长度：250（nm / mm）xL（mm）<= d（nm）<= 250（nm / mm）xL（mm）+1500（mm）

    Hologram recorder
    27.
    发明授权
    Hologram recorder 有权
    全息记录仪

    公开(公告)号：US08223413B2

    公开(公告)日：2012-07-17

    申请号：US12749080

    申请日：2010-03-29

    申请人： Kazushi Uno ,  Koichi Tezuka ,  Hiroyasu Yoshikawa ,  Yasumasa Iwamura ,  Yuzuru Yamakage ,  Satoshi Shimokawa

    发明人： Kazushi Uno ,  Koichi Tezuka ,  Hiroyasu Yoshikawa ,  Yasumasa Iwamura ,  Yuzuru Yamakage ,  Satoshi Shimokawa

    IPC分类号： G03H1/04 ,  G03H1/10

    CPC分类号： G11B7/083 ,  G03H1/26 ,  G03H1/265 ,  G11B7/0065 ,  G11B7/1359

    摘要： A hologram recorder includes a signal beam irradiator to irradiate a signal beam, which is optically modulated in accordance with information to be recorded, to a recording medium at a predetermined incident angle. The hologram recorder also includes a recording prism provided with surfaces including an incident surface, a reflective surface and an emission surface for light so that a recording reference beam is guided to the recording medium by way of these surfaces. A pivot mechanism of the hologram recorder causes the recording prism to pivot above the recording medium for changing the incident angle of the recording reference beam at the recording medium, with the recording reference beam kept to overlap the signal beam.

    摘要翻译： 全息记录仪包括信号光束照射器，用于以预定的入射角照射根据要记录的信息被光学调制的信号光束到记录介质。 全息记录仪还包括记录棱镜，该记录棱镜具有包括入射表面，反射表面和用于光的发射表面的表面，使得记录参考光束通过这些表面被引导到记录介质。 全息图记录器的枢转机构使得记录棱镜在记录介质上方枢转，以便在记录介质上改变记录参考光束的入射角，同时记录参考光束保持与信号光束重叠。

    OBJECTIVE LENS FOR RECORDING HOLOGRAM AND HOLOGRAM RECORDING DEVICE
    28.
    发明申请
    OBJECTIVE LENS FOR RECORDING HOLOGRAM AND HOLOGRAM RECORDING DEVICE 有权
    用于记录霍尔姆和霍尔姆记录装置的目标镜头

    公开(公告)号：US20100202271A1

    公开(公告)日：2010-08-12

    申请号：US12763792

    申请日：2010-04-20

    申请人： Yuzuru Yamakage ,  Kazushi Uno ,  Yasumasa Iwamura ,  Hiroyasu Yoshikawa ,  Koichi Tezuka

    发明人： Yuzuru Yamakage ,  Kazushi Uno ,  Yasumasa Iwamura ,  Hiroyasu Yoshikawa ,  Koichi Tezuka

    IPC分类号： G11B7/00

    CPC分类号： G11B7/1374 ,  G02B5/32 ,  G02B13/24 ,  G03H2223/17 ,  G11B7/0065 ,  G11B2007/13727

    摘要： Provided is an objective lens for recording a hologram that condenses an recording beam on a hologram recording medium, and the objective lens is configured so as to condense, in the case where the recording beam is incident upon the objective lens in a form of a parallel beam flux, an on-axis beam flux and an off-axis beam flux contained in the parallel flux so as to form a beam waist in the hologram recording medium, and such that a distance between an off-axis image point of the off-axis beam flux that defines a largest field angle among the off-axis beam fluxes gradually converging ahead of the beam waist and the hologram recording medium becomes minimal.

    摘要翻译： 提供了一种用于记录在全息图记录介质上聚合记录光束的全息图的物镜，并且在记录光束以平行的形式入射到物镜的情况下物镜被配置为冷凝 光束通量，包含在平行磁通中的轴上光束通量和离轴光束通量，以便在全息图记录介质中形成光束腰部，并且使得离焦光束的偏轴图像点之间的距离， 在束腰和全息图记录介质之前逐渐收敛的离轴光束之间限定最大场角的轴光束通量变得最小。

    Hologram recording apparatus and hologram recording/reproducing method
    29.
    发明授权
    Hologram recording apparatus and hologram recording/reproducing method 失效
    全息记录装置和全息记录/再现方法

    公开(公告)号：US07751105B2

    公开(公告)日：2010-07-06

    申请号：US12338090

    申请日：2008-12-18

    申请人： Kazushi Uno ,  Koichi Tezuka ,  Hiroyasu Yoshikawa ,  Yasumasa Iwamura ,  Yuzuru Yamakage ,  Satoshi Shimokawa

    发明人： Kazushi Uno ,  Koichi Tezuka ,  Hiroyasu Yoshikawa ,  Yasumasa Iwamura ,  Yuzuru Yamakage ,  Satoshi Shimokawa

    IPC分类号： G03H1/10

    CPC分类号： G03H1/26 ,  G03H1/265 ,  G11B7/0065 ,  G11B7/083 ,  G11B7/1362

    摘要： A hologram recorder applies a recording beam (S) and a reference beam (R) to the illumination site (p) of a hologram recording medium (B). The interference between the recording beam (S) and the reference beam (R) produces multiple hologram recording at the illumination site (p). The recorder includes a recording-purpose reference beam reflector (10) for reflecting the reference beam (R) to the illumination site (p), and a pivot mechanism for pivoting the reflector (10) about an axis (x) to vary the incident angle (θr) of the reflected reference beam (R) to the recording medium (B). The reflector (10) is disposed to cross a predetermined optical path. The axis (x) of the pivot mechanism is so arranged that the reflected reference beam (R) is directed to the illumination site (p) even when the incident angle (θr) of the beam (R) changes due to the pivoting of the reflector (10).

    摘要翻译： 全息记录器将记录光束（S）和参考光束（R）施加到全息图记录介质（B）的照明位置（p）。 记录光束（S）和参考光束（R）之间的干涉在照明位置（p）处产生多个全息图记录。 记录器包括用于将参考光束（R）反射到照明位置（p）的记录用参考光束反射器（10）和用于围绕轴线（x）枢转反射器（10）的枢转机构以改变事件 反射参考光束（R）到记录介质（B）的角度（＆amp; t; r）。 反射器（10）设置成与预定的光路交叉。 枢转机构的轴线（x）被布置成使得即使当梁（R）的入射角（θ）r由于枢转而变化时，反射的参考光束（R）也被引导到照明位置 的反射器（10）。

    Hologram recorder
    30.
    发明授权
    Hologram recorder 有权
    全息记录仪

    公开(公告)号：US07715073B2

    公开(公告)日：2010-05-11

    申请号：US12110107

    申请日：2008-04-25

    申请人： Hiroyasu Yoshikawa ,  Koichi Tezuka ,  Kazushi Uno ,  Yasumasa Iwamura ,  Yuzuru Yamakage

    发明人： Hiroyasu Yoshikawa ,  Koichi Tezuka ,  Kazushi Uno ,  Yasumasa Iwamura ,  Yuzuru Yamakage

    IPC分类号： G03H1/28

    CPC分类号： G03H1/12 ,  G03H1/02 ,  G03H2001/0224 ,  G03H2001/2675 ,  G03H2223/13 ,  G03H2225/31 ,  G03H2225/55 ,  G11B7/0065 ,  G11B7/128 ,  G11B7/1362

    摘要： A hologram recorder is provided, in which coherent light from a light source is split into a signal beam and a reference beam, and the signal beam is modulated by a spatial light modulator to be directed to a hologram recording medium, while the reference beam is directed to the hologram recording medium to overlap with the signal beam for recording a hologram on the hologram recording medium. The hologram recorder includes a beam phase modulator provided with a plurality of optical devices (20p, 20p′) each configured to assume one of two modes such as ON mode and OFF mode, the ON mode for causing the reference beam to be passed or reflected in a predetermined direction toward the hologram recording medium, the OFF mode for causing the reference beam to be blocked or directed in another direction other than the predetermined direction. Each optical device (20p, 20p′) provides a phase difference 0 or π. A phase modulation controller is also provided for individually controlling the optical devices (20p, 20p′) to cause each of the optical devices to assume the ON mode or the OFF mode, thereby modulating the reference beam into a beam having a predetermined phase pattern.

    摘要翻译： 提供一种全息记录器，其中来自光源的相干光被分成信号光束和参考光束，信号光束由空间光调制器调制以被引导到全息图记录介质，而参考光束是 指向全息图记录介质以与用于在全息图记录介质上记录全息图的信号光束重叠。 该全息图记录器包括一个光束相位调制器，该光束相位调制器设置有多个光学装置（20p，20p'），每个光学装置被配置为采用两种模式之一，如ON模式和OFF模式，ON模式用于使参考光束通过或反射 在朝向全息图记录介质的预定方向上，用于使参考光束被阻挡或指向除了预定方向之外的另一方向的OFF模式。 每个光学装置（20p，20p'）提供相位差0或“pgr”。 还提供了相位调制控制器，用于单独控制光学装置（20p，20p'）以使每个光学装置呈现ON模式或OFF模式，从而将参考光束调制成具有预定相位图案的光束。