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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
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。
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公开(公告)号：US20100202271A1
公开(公告)日：2010-08-12
申请号：US12763792
申请日：2010-04-20
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。
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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）。
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公开(公告)号：US07715073B2
公开(公告)日：2010-05-11
申请号：US12110107
申请日：2008-04-25
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。
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公开(公告)号：US20080309999A1
公开(公告)日：2008-12-18
申请号：US12194804
申请日：2008-08-20
CPC分类号： G11B7/0065 , G03H1/16 , G03H1/26 , G11B7/1372
摘要： A holographic recorder (A1) can vary the optical distance between an object lens (8) and a relay lens (7b) near the object lens (8). This arrangement allows defocus-multiplexing utilizing state variations in the laser beam when the beam reaches a storage medium (B1).
摘要翻译： 全息记录器（A1）可以改变物镜（8）附近的物镜（8）和中继透镜（7b）之间的光学距离。 这种布置允许当光束到达存储介质（B1）时利用激光束中的状态变化进行散焦复用。
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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。
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公开(公告)号：US07755819B2
公开(公告)日：2010-07-13
申请号：US12048935
申请日：2008-03-14
IPC分类号： G03H1/10
CPC分类号： G11B7/0065 , G03H1/04 , G03H1/0402 , G03H2222/35 , G03H2222/36 , G03H2225/24 , G11B7/083
摘要： A hologram recorder (A2) includes: a light source (10) for emitting a coherent beam; a spatial light modulator (20) provided with unit areas having a plurality of beam reflection elements (21) to reflect the beam from the light source (10) in a main direction as a signal beam or a cut-off direction; and a signal beam optical system (30, 31) for directing the signal beam to the hologram recording medium (B). The recorder (A2) further includes: a wavefront reshaper (40, 41, 42) for condensing the beams thinned out in the cut-off direction by the beam reflection element (21) of the modulator (20), and reshaping the wavefront of the condensed beams; and a reference beam optical system (50, 51) for directing the beam from the reshaper (40, 41, 42) to the recording medium (B) as a reference beam to be shone in an overlapping manner with the signal beam.
摘要翻译： 全息记录器（A2）包括：用于发射相干光束的光源（10）; 设置有具有多个光束反射元件（21）的单元区域的空间光调制器（20），用于在主方向上将来自光源（10）的光束作为信号光束或截止方向反射; 以及用于将信号光束引导到全息图记录介质（B）的信号光束光学系统（30,31）。 记录器（A2）还包括：波前整形器（40,41,42），用于通过所述调制器（20）的光束反射元件（21）将从所述截止方向变薄的光束聚集在一起，并且重新形成 聚光束; 以及用于将光束从所述整形器（40,41,42）引导到所述记录介质（B）的参考光束光学系统（50,51），作为要与所述信号光束重叠的参照光束照射。
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公开(公告)号：US20090316237A1
公开(公告)日：2009-12-24
申请号：US12548017
申请日：2009-08-26
申请人： Kazushi Uno , Yasumasa Iwamura
发明人： Kazushi Uno , Yasumasa Iwamura
IPC分类号： G03H1/04
CPC分类号： G03H1/02 , G03H2001/0212 , G03H2222/22 , G03H2222/35 , G11B7/0065 , G11B7/1381 , G11B7/1398 , G11B2007/13727
摘要： A hologram recorder (A) which records holograms by causing a recording beam (P) and a reference beam (S) to interfere with each other in a hologram recording media (B), includes an incident-side and an emitting-side lenses (3a, 3b) provided as a compound lens disposed in a laser beam path between a light source (1) and a beam separator (7); and an aperture stop (5) provided to limit a light flux diameter between the incident-side and emitting-side lenses (3a, 3b). The aperture stop (5) is disposed at a position biased toward the incident-side lens (3a) as viewed from an incident-side focal position of the emitting-side lens (3b).
摘要翻译： 通过使记录光束（P）和参考光束（S）在全息记录介质（B）中相互干扰来记录全息图的全息记录器（A）包括入射侧和发射侧透镜 3a，3b），设置在光源（1）和光束分离器（7）之间的激光束路径中的复合透镜; 以及设置用于限制入射侧和发射侧透镜（3a，3b）之间的光束直径的孔径光阑（5）。 从发光侧透镜（3b）的入射侧聚焦位置观察，孔径光阑（5）配置在朝向入射侧透镜（3a）偏置的位置。
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9.发明申请Magneto-optical recording medium and magneto-optical recording medium substrate manufacturing method 审中-公开磁光记录介质和磁光记录介质基板的制造方法公开(公告)号：US20050188397A1
公开(公告)日：2005-08-25
申请号：US11112276
申请日：2005-04-22
IPC分类号： G11B5/17 , G11B7/24 , G11B11/105 , G11B23/03
CPC分类号： G11B11/10582 , G11B11/10578 , G11B11/10584 , G11B11/10591
摘要： A magneto-optical recording medium (X1) comprises a substrate (S1) and a material film structure. The substrate (S1) includes a pre-groove surface (11a) with a pre-groove (11b) formed therein, and at least the pre-groove surface (11a) is made of a soft magnetic material. The material film structure comprises a recording magnetic section (21) for executing a recording function and a reproduction function and is provided on a pre-groove surface (11a) of the substrate (S1).
摘要翻译： 磁光记录介质（X 1）包括基板（S1）和材料膜结构。 基板（S1）包括其中形成有预凹槽（11b）的预凹槽表面（11a），并且至少前槽表面（11a）由软磁材料制成。 材料膜结构包括用于执行记录功能和再现功能的记录磁性部分（21），并被提供在基板（S1）的预制槽表面（11a）上。
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公开(公告)号：US07859975B2
公开(公告)日：2010-12-28
申请号：US12058158
申请日：2008-03-28
IPC分类号： G11B7/00
CPC分类号： G11B7/0065 , G03H1/02 , G03H1/0486 , G03H2001/0212 , G03H2222/31 , G03H2223/20 , G03H2240/52 , G11B7/1369 , G11B7/1398
摘要： A hologram recorder includes a light source for emitting a laser beam, a polarizing beam splitter for splitting the laser beam into a recording beam and a reference beam in accordance with a state of polarization, and a rotary polarizer located between the light source and the polarizing beam splitter. The rotary polarizer has the function of optical rotation, whereby a polarization component to be the recording beam is increased from the central portion toward the peripheral portion of the laser beam, and a polarization component to be the reference beam is decreased from the central portion toward the peripheral portion of the laser beam.
摘要翻译： 全息记录仪包括用于发射激光束的光源，用于将激光束分离成记录光束的偏振分束器和根据偏振态的参考光束，以及位于光源和偏振光之间的旋转偏振器 分束器。 旋转偏振器具有旋光功能，由此作为记录光束的偏振分量从激光的中心部分朝向周边部分增加，作为参考光束的偏振分量从中心部分向着 激光束的周边部分。
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