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    Optical information recording apparatus, optical information reproducing apparatus, optical information recording/reproducing apparatus, and optical information recording medium
    3.
    发明授权
    Optical information recording apparatus, optical information reproducing apparatus, optical information recording/reproducing apparatus, and optical information recording medium 失效
    光信息记录装置，光信息重放装置，光信息记录/再现装置和光信息记录介质

    公开(公告)号：US07227827B2

    公开(公告)日：2007-06-05

    申请号：US10220745

    申请日：2001-03-09

    申请人： Hideyoshi Horimai ,  Mitsuteru Inoue ,  Toshitaka Fujii

    发明人： Hideyoshi Horimai ,  Mitsuteru Inoue ,  Toshitaka Fujii

    IPC分类号： G11B7/00

    CPC分类号： G11B11/10534 ,  G03H1/0248 ,  G03H1/182 ,  G03H1/26 ,  G03H2001/0212 ,  G03H2001/026 ,  G03H2240/25 ,  G03H2260/35 ,  G11B7/0065 ,  G11B7/128 ,  G11B7/1356 ,  G11B11/10502

    摘要： An object of the present invention is to make it possible to record information on an optical information recording medium in the form of three dimensional interference patterns so that the information is erasable in part.The optical information recording medium (1) has an information recording layer (3) made of a magneto-optic recording material. A pick-up (11) of an optical information recording/reproducing apparatus generates information light by spatially modulating laser light emitted from a light source unit (20) with a spatial light modulator (22), and generates recording-specific reference light spatially modulated in phase by spatially modulating the phase of the laser light emitted from the light source (20) with a phase-spatial light modulator (16). The information recording layer (3) of the optical information recording medium (1) is irradiated with the information light and the recording-specific reference light. An electromagnetic coil (30) applies a magnetic field to the information recording layer (3). A three-dimensional distribution pattern of magnetization corresponding to the interference pattern resulting from the information light and the recording-specific reference light is formed in the information recording layer (3).

    摘要翻译： 本发明的目的是使得可以以三维干涉图案的形式在光学信息记录介质上记录信息，使得信息可以部分地被擦除。 光信息记录介质（1）具有由磁光记录材料制成的信息记录层（3）。 光信息记录/再现装置的拾取器（11）通过利用空间光调制器（22）空间调制从光源单元（20）发出的激光来产生信息光，并产生记录专用参考光空间调制 通过用相空间光调制器（16）空间调制从光源（20）发射的激光的相位来同相。 光信息记录介质（1）的信息记录层（3）用信息光和记录专用参考光照射。 电磁线圈（30）向信息记录层（3）施加磁场。 在信息记录层（3）中形成与由信息光产生的干涉图形相对应的磁化的三维分布图案和记录专用参考光。

    Binary hologram transducer using magnetic bubbles
    6.
    发明授权
    Binary hologram transducer using magnetic bubbles 失效
    使用磁性气泡的二进制全息传感器

    公开(公告)号：US4937786A

    公开(公告)日：1990-06-26

    申请号：US715748

    申请日：1985-03-25

    申请人： Venkata Guruprasad

    发明人： Venkata Guruprasad

    IPC分类号： G02F1/09 ,  G03H1/02 ,  G11C13/04

    CPC分类号： G11C13/043 ,  G02F1/09 ,  G03H1/02 ,  G03H2001/0224 ,  G03H2001/026 ,  G03H2001/0264 ,  G03H2222/31 ,  G03H2240/15 ,  G03H2240/25

    摘要： A hologram transducer using the Faraday effect in magnetic bubble devices for recording and reproducing the amplitude and phase distributions over a section of a beam of coherent light is disclosed. The transducer spatially modulates the intensity, by using linear polarization, and the phase, by using circular polarization, of light transmitted through a magnetic bubble device. Using linear polarization and a single magnetic bubble domain to traverse in a sequence the possible storage positions in the magnetic bubble device, the transducer samples at each of these positions the intensity of the transmitted light. Using in addition a coherent reference beam of light to interfere with the light being measured, the transducer samples the phase in the half range of 0 through .pi. radians at these positions. Further, using a quarter cycle phase shift in the reference beam, the transducer resolves the phase values over the full range of 0 through 2.pi. radians. Because of the localization of the sample values by the magnetic bubbles to the order of the wavelength of the light, optical holograms may be directly recorded as electrical signals by the transducer and the corresponding images reconstructed by the transducer from the electrical signals.

    摘要翻译： 公开了一种使用在气泡装置中的法拉第效应的全息图传感器，用于记录和再现相干光束的一部分上的幅度和相位分布。 换能器通过使用线性极化空间调制强度，并且通过使用圆偏振来透射通过磁性气泡装置的光的相位。 使用线性极化和单个磁性气泡域来顺序地遍历磁性气泡装置中的可能的存储位置，这些传感器中的每个位置处的换能器样品都将透射光的强度定位。 另外使用相干参考光束来干扰所测量的光，换能器在这些位置通过π弧度在0的一半范围内对相位进行采样。 此外，使用参考光束中的四分之一周期相移，换能器在0至2 pi弧度的全范围内解析相位值。 由于通过磁性气泡将样本值定位成光的波长的顺序，光学全息图可以被传感器直接记录为电信号，并且由电信号由换能器重建的相应图像。

    Heterodyne readout holographic memory
    7.
    发明授权
    Heterodyne readout holographic memory 失效
    HETERODYNE读出全息记忆

    公开(公告)号：US3698010A

    公开(公告)日：1972-10-10

    申请号：US3698010D

    申请日：1971-09-20

    申请人： HONEYWELL INC

    发明人： LEE TZUO-CHANG

    IPC分类号： G03H1/26 ,  G11C13/04 ,  G11C11/02 ,  G02B27/00

    CPC分类号： G03H1/26 ,  G03H2223/19 ,  G03H2240/25 ,  G11C13/042

    摘要： A holographic optical memory utilizes an optical heterodyne technique to significantly increase the signal-to-noise ratio during the readout stage of operation. A light source provides a coherent light beam which is split into a readout beam and a local oscillator beam. The readout beam is directed to one of the holograms stored in the memory medium and a portion of the read out beam is diffracted by the hologram to form a reconstructed image of the bit pattern stored in the hologram at the reconstructed image plane. The local oscillator beam is superimposed with the diffracted portion of the readout beam. An optical frequency translator is positioned in either the readout beam or the local oscillator beam to cause the beams to have different optical frequencies. Therefore, when the two beams are superimposed, a beat frequency signal is produced. An array of detectors is positioned at the reconstructed image plane to receive the superimposed beams. Each detector of the array is positioned to receive the light representing one bit of the bit pattern and to provide an output signal indicative of the intensity of the beat frequency signal received.

    摘要翻译： 全息光学存储器利用光学外差技术在操作的读出阶段显着提高信噪比。 光源提供相干光束，其被分离成读出光束和本地振荡器光束。 读出光束被引导到存储在存储介质中的一个全息图，并且读出光束的一部分被全息图衍射，以形成在重建图像平面处存储在全息图中的位图的重建图像。 本地振荡器光束与读出光束的衍射部分叠加。 光学频率转换器位于读出光束或本地振荡器光束中，以使光束具有不同的光学频率。 因此，当两个光束叠加时，产生拍频信号。 一组检测器位于重建的图像平面上以接收叠加的光束。 阵列的每个检测器被定位成接收表示位模式的一个位的光，并提供指示所接收的拍频信号的强度的输出信号。

    Light emission control for forming two-dimensional and three-dimensional images
    8.
    发明授权
    Light emission control for forming two-dimensional and three-dimensional images 有权
    用于形成二维和三维图像的发光控制

    公开(公告)号：US07535434B2

    公开(公告)日：2009-05-19

    申请号：US11042674

    申请日：2005-01-25

    申请人： Robert J. Atmur ,  Jeffrey H. Hunt

    发明人： Robert J. Atmur ,  Jeffrey H. Hunt

    IPC分类号： G09G3/00 ,  G09G3/34 ,  G02F1/295

    CPC分类号： G02F1/09 ,  G03H1/02 ,  G03H1/22 ,  G03H1/2294 ,  G03H2001/0224 ,  G03H2225/36 ,  G03H2240/25

    摘要： Systems and methods are disclosed for providing a more robust flat panel display by using the Faraday effect to control light emission from a solid state material so as to form two-dimensional or three-dimensional images. Flux tubes can be configured to define a two dimensional array. Each flux tube is somewhat analogous to a single bubble of a magnetic bubble memory and can define a pixel. At least some aspect of light transmitted through a flux tube can be varied thereby, so as to facilitate the formation of an image.

    摘要翻译： 公开了用于通过使用法拉第效应来控制来自固体材料的光发射以形成二维或三维图像来提供更加坚固的平板显示器的系统和方法。 通量管可配置为定义二维阵列。 每个磁通管有点类似于气泡存储器的单个气泡，并且可以限定像素。 透过通量管的光的至少一些方面可以改变，以便于形成图像。

    Optical information recording device, opticall information reproducing device, optical information recording/reproducing device, and optical information recording medium
    9.
    发明申请
    Optical information recording device, opticall information reproducing device, optical information recording/reproducing device, and optical information recording medium 失效
    光信息记录装置，光信息再现装置，光信息记录/再现装置和光信息记录介质

    公开(公告)号：US20030095477A1

    公开(公告)日：2003-05-22

    申请号：US10220745

    申请日：2002-09-11

    发明人： Hideyoshi Horimai ,  Mitsuteru Inoue

    IPC分类号： G11B011/00

    CPC分类号： G11B11/10534 ,  G03H1/0248 ,  G03H1/182 ,  G03H1/26 ,  G03H2001/0212 ,  G03H2001/026 ,  G03H2240/25 ,  G03H2260/35 ,  G11B7/0065 ,  G11B7/128 ,  G11B7/1356 ,  G11B11/10502

    摘要： An object of the present invention is to make it possible to record information on an optical information recording medium in the form of three dimensional interference patterns so that the information is erasable in part. The optical information recording medium (1) has an information recording layer (3) made of a magneto-optic recording material. A pick-up (11) of an optical information recording/reproducing apparatus generates information light by spatially modulating laser light emitted from a light source unit (20) with a spatial light modulator (22), and generates recording-specific reference light spatially modulated in phase by spatially modulating the phase of the laser light emitted from the light source (20) with a phase-spatial light modulator (16). The information recording layer (3) of the optical information recording medium (1) is irradiated with the information light and the recording-specific reference light. An electromagnetic coil (30) applies a magnetic field to the information recording layer (3). A three-dimensional distribution pattern of magnetization corresponding to the interference pattern resulting from the information light and the recording-specific reference light is formed in the information recording layer (3).

    摘要翻译： 本发明的目的是使得可以以三维干涉图案的形式在光学信息记录介质上记录信息，使得信息可以部分地被擦除。 光信息记录介质（1）具有由磁光记录材料制成的信息记录层（3）。 光信息记录/再现装置的拾取器（11）通过利用空间光调制器（22）空间调制从光源单元（20）发出的激光来产生信息光，并产生记录专用参考光空间调制 通过用相空间光调制器（16）空间调制从光源（20）发射的激光的相位来同相。 光信息记录介质（1）的信息记录层（3）用信息光和记录专用参考光照射。 电磁线圈（30）向信息记录层（3）施加磁场。 在信息记录层（3）中形成与由信息光产生的干涉图形相对应的磁化的三维分布图案和记录专用参考光。