公开(公告)号：US20100195179A1

公开(公告)日：2010-08-05

申请号：US12724905

申请日：2010-03-16

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： G03H1/26

CPC分类号： G11B7/00772 ,  G03H1/22 ,  G03H1/2286 ,  G03H2001/2223 ,  G11B7/08564 ,  G11B7/1395

摘要： A hologram reproducing device includes a splitter for splitting a reference beam, during reproduction, into a main beam and sub-beams forming incidence directions spatially shifted from the main beam. The hologram reproducing device also includes: an incidence direction variable irradiator for changing the incidence directions of the main beam and the sub-beams; a servo beam detector for detecting a portion of the reproduction beam generated in accordance with the sub-beams; and a beam receiving unit for receiving the main portion of the reproduction beam generated in accordance with the main beam. A reproducer reproduces an image obtained by the beam receiving unit when the main beam coincides with the incidence direction at which the received light of the beam receiving unit becomes equal to or greater than a prescribed level, with the intensity of the reference beam kept uniform, on the basis of the servo beam detection results.

摘要翻译： 一种全息图再现装置包括：分离器，用于在再现期间将参考光束分离成主光束，并且形成从主光束空间偏移的入射方向的子光束。 全息图再现装置还包括：用于改变主光束和子光束的入射方向的入射方向可变辐射器; 伺服光束检测器，用于检测根据子光束产生的再现光束的一部分; 以及用于接收根据主光束产生的再现光束的主要部分的光束接收单元。 当主光束与光束接收单元的接收光变为等于或大于规定水平的入射方向一致时，再现器再现由光束接收单元获得的图像，参考光束的强度保持均匀， 在伺服光束检测结果的基础上。

公开(公告)号：US20090135459A1

公开(公告)日：2009-05-28

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： G03H1/26

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）与记录介质（B）的角度（角度）。 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（ttt）由于轴的旋转而变化时，反射的参考光束（R）也被引导到照明位置（p） 反射器（10）。

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。

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）。

公开(公告)号：US20100182664A1

公开(公告)日：2010-07-22

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： G03H1/26

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。

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。

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。

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。

公开(公告)号：US08295142B2

公开(公告)日：2012-10-23

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。

公开(公告)号：US20090129234A1

公开(公告)日：2009-05-21

申请号：US12338150

申请日：2008-12-18

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

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

IPC分类号： G11B7/00

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

摘要： A hologram recording device illuminates with a recording beam (S) a hologram recording medium (B), and illuminates with a reference beam (R) a region illuminated with the recording beam (p) while variably controlling the incident angle regarding the hologram recording medium (B) whereby holograms are recorded on the illuminated region (p) in multiple by interference of the recording beam (S) and the reference beam (R). The device includes an incident angle variable controller for variably controlling the incident angle of the reference beam (R) in a predetermined range. The hologram recording medium (B) has such characteristics that its recording sensitivity degrades as the incoming light amount increases. The incident angle variable controller changes the incident angle of the reference beam (R) from a larger angle to a smaller angle.

摘要翻译： 全息记录装置用全息图记录介质（B）的记录光束（S）照亮，并且用参考光（R）照射具有记录光束（p）的区域，同时可变地控制关于全息图记录介质的入射角 （B），借助于记录光束（S）和参考光束（R）的干涉，全息图被多次记录在照明区域（p）上。 该装置包括入射角度可变控制器，用于可变地控制参考光束（R）在预定范围内的入射角。 全息记录介质（B）具有随着入射光量增加而使其记录灵敏度降低的特性。 入射角可变控制器将参考光束（R）的入射角度从较大角度变化到更小的角度。