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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：US08295142B2
公开(公告)日：2012-10-23
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：US07719735B2
公开(公告)日：2010-05-18
申请号：US12190873
申请日：2008-08-13
IPC分类号： G03H1/04
CPC分类号： G03H1/26 , G03H1/265 , G11B7/0065 , G11B7/00772 , G11B7/083
摘要： A hologram recorder (A) records holograms in a selected unit recording area (B1) of a hologram recording medium (B) by interference between a recording beam (Lr) which is applied vertically to the unit recording area (B1) and a reference beam (Lr) which is applied obliquely to the unit recording area (B1). The hologram recorder (A) includes a reference beam oblique applier (23A, 23B) for application of the reference beam (Lr) obliquely to the unit recording area (B1) by reflection, and a reference beam swing mechanism (30) for supporting the reference beam oblique applier (23A, 23B) and for swinging the reference beam oblique applier (23A, 23B) about a predetermined rotation axis which is perpendicular to an entering direction of the recording beam (Lw) that makes an entry into the unit recording area.
摘要翻译： 全息记录器（A）通过垂直于单元记录区域（B1）施加的记录光束（Lr）和参考光束（B）之间的干涉，将全息图记录在全息图记录介质（B）的选定单元记录区域（B1） （Lr）倾斜地施加到单元记录区域（B1）。 全息图记录器（A）包括用于通过反射将参考光束（Lr）倾斜地施加到单位记录区域（B1）的参考光束施加器（23A，23B），以及用于支撑 参考光束倾斜施加器（23A，23B），并且用于围绕与进入单位记录区域的记录光束（Lw）的进入方向垂直的预定旋转轴摆动参考光束施加器（23A，23B） 。
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公开(公告)号：US20090129234A1
公开(公告)日：2009-05-21
申请号：US12338150
申请日：2008-12-18
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。
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公开(公告)号：US20080239923A1
公开(公告)日：2008-10-02
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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公开(公告)号：US20080239421A1
公开(公告)日：2008-10-02
申请号：US12110107
申请日：2008-04-25
IPC分类号： G03H1/14
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。 所述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器件（20 p，20 p'），每个光学器件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 或以朝向全息图记录介质的预定方向反射的方式，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π。 还提供了相位调制控制器，用于单独控制光学器件（20p，20p'）以使每个光学器件处于ON模式或OFF模式，从而将参考光束调制成具有预定相位的光束 模式。
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