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    Hologram recording method and hologram recording apparatus
    1.
    发明授权
    Hologram recording method and hologram recording apparatus 失效
    全息记录方法和全息记录装置

    公开(公告)号：US07307768B2

    公开(公告)日：2007-12-11

    申请号：US10782903

    申请日：2004-02-23

    申请人： Katsunori Kawano ,  Jiro Minabe ,  Shin Yasuda ,  Tatsuya Maruyama ,  Norie Matsui

    发明人： Katsunori Kawano ,  Jiro Minabe ,  Shin Yasuda ,  Tatsuya Maruyama ,  Norie Matsui

    IPC分类号： G03H1/26 ,  G03H1/16

    CPC分类号： G02B27/0944 ,  G03H1/04 ,  G03H1/10 ,  G03H1/16 ,  G03H1/26 ,  G11B7/0065 ,  G11B2007/0009 ,  Y10S359/90

    摘要： A hologram is recorded by irradiating, with a reference light beam, a region corresponding to an intensity distribution of a signal light beam on an optical recording medium. For example, the reference light beam having the intensity distribution which substantially coincides with the intensity distribution of the signal light beam is generated, and only the region which substantially coincides with the region irradiated by the signal light beam (i.e., the signal light beam defocused region) is irradiated with the reference light beam. This enables only the necessary region to be exposed and the regions which need not be exposed not to be exposed. Accordingly, the hologram can be recorded without losing information of the signal light beam and thus high-density recording can be realized.

    摘要翻译： 通过用参考光束照射与光学记录介质上的信号光束的强度分布相对应的区域来记录全息图。 例如，具有与信号光束的强度分布基本一致的强度分布的参考光束被产生，并且仅仅与由信号光束照射的区域（即，信号光束散焦 区域）照射参考光束。 这使得只有必要的区域被暴露，并且不需要暴露的区域不被暴露。 因此，可以在不损失信号光束的信息的情况下记录全息图，从而可以实现高密度记录。

    Optical recording apparatus and optical recording/reproducing apparatus
    3.
    发明授权
    Optical recording apparatus and optical recording/reproducing apparatus 失效
    光记录装置和光记录/再现装置

    公开(公告)号：US07064875B2

    公开(公告)日：2006-06-20

    申请号：US10660485

    申请日：2003-09-12

    申请人： Katsunori Kawano ,  Jiro Minabe ,  Tatsuya Maruyama ,  Shin Yasuda ,  Norie Matsui ,  Tsutomu Ishii ,  Kazuhiro Hama

    发明人： Katsunori Kawano ,  Jiro Minabe ,  Tatsuya Maruyama ,  Shin Yasuda ,  Norie Matsui ,  Tsutomu Ishii ,  Kazuhiro Hama

    IPC分类号： G03H1/12

    CPC分类号： G11B7/245 ,  G03H2222/31 ,  G11B7/0065 ,  G11B7/128 ,  G11B7/1353 ,  G11B7/1356 ,  G11B7/1369 ,  G11B7/2467 ,  G11B7/25 ,  G11B7/2531 ,  G11B7/2533 ,  G11B7/2534 ,  G11B7/2535

    摘要： An optical recording/reproducing apparatus having excellent resistance against vibration and noise is provided. In recording, coherent light is polarization-modulated with a spatial light modulator to generate signal light and reference light whose polarization directions are crossed at right angles with each other. The signal light permeates a polarizing beam splitter, and is incident to a quarter wavelength plate. The reference light passes through a passing hole, is diffused by a light diffuser and is incident to the quarter wavelength plate. The reference and signal light are converted into circularly polarized light which revolve in directions opposite to each other and condensed by a condenser lens, and then a predetermined area of an optical recording medium is irradiated with the reference and signal light. Thus, the reference and signal light are generated by modulating the incident light from the same light source and are coaxially incident to the polarizing beam splitter.

    摘要翻译： 提供具有优异的抗振动和噪声的光学记录/重放装置。 在记录中，相干光利用空间光调制器进行偏振调制，以产生信号光和偏振方向相互交叉的参考光。 信号光透过偏振分束器，并入射到四分之一波长板上。 参考光通过通孔，被光扩散器扩散并入射到四分之一波长板。 参考信号光和信号光被转换为以相反方向旋转并由聚光透镜聚光的圆偏振光，然后用参考信号光照射光记录介质的预定区域。 因此，通过调制来自相同光源的入射光并同轴地入射到偏振分束器来产生参考信号光和信号光。

    Hologram recording method and hologram recording apparatus
    5.
    发明申请
    Hologram recording method and hologram recording apparatus 失效
    全息记录方法和全息记录装置

    公开(公告)号：US20050012971A1

    公开(公告)日：2005-01-20

    申请号：US10782903

    申请日：2004-02-23

    申请人： Katsunori Kawano ,  Jiro Minabe ,  Shin Yasuda ,  Tatsuya Maruyama ,  Norie Matsui

    发明人： Katsunori Kawano ,  Jiro Minabe ,  Shin Yasuda ,  Tatsuya Maruyama ,  Norie Matsui

    IPC分类号： G03H1/04 ,  G03H1/10 ,  G03H1/16 ,  G03H1/26 ,  G11B7/00 ,  G11B7/0045 ,  G11B7/0065

    CPC分类号： G02B27/0944 ,  G03H1/04 ,  G03H1/10 ,  G03H1/16 ,  G03H1/26 ,  G11B7/0065 ,  G11B2007/0009 ,  Y10S359/90

    摘要： A hologram is recorded by irradiating, with a reference light beam, a region corresponding to an intensity distribution of a signal light beam on an optical recording medium. For example, the reference light beam having the intensity distribution which substantially coincides with the intensity distribution of the signal light beam is generated, and only the region which substantially coincides with the region irradiated by the signal light beam (i.e., the signal light beam defocused region) is irradiated with the reference light beam. This enables only the necessary region to be exposed and the regions which need not be exposed not to be exposed. Accordingly, the hologram can be recorded without losing information of the signal light beam and thus high-density recording can be realized.

    摘要翻译： 通过用参考光束照射与光学记录介质上的信号光束的强度分布相对应的区域来记录全息图。 例如，具有与信号光束的强度分布基本一致的强度分布的参考光束被产生，并且仅仅与由信号光束照射的区域（即，信号光束散焦 区域）照射参考光束。 这使得只有必要的区域被暴露，并且不需要暴露的区域不被暴露。 因此，可以在不损失信号光束的信息的情况下记录全息图，从而可以实现高密度记录。

    Holographic recording method and apparatus
    9.
    发明申请
    Holographic recording method and apparatus 有权
    全息记录方法和装置

    公开(公告)号：US20050018262A1

    公开(公告)日：2005-01-27

    申请号：US10796033

    申请日：2004-03-10

    申请人： Shin Yasuda ,  Katsunori Kawano ,  Jiro Minabe ,  Tatsuya Maruyama ,  Norie Matsui

    发明人： Shin Yasuda ,  Katsunori Kawano ,  Jiro Minabe ,  Tatsuya Maruyama ,  Norie Matsui

    IPC分类号： G03H1/16 ,  G03H1/26 ,  G11B7/0065 ,  G11C13/04

    CPC分类号： G03H1/265 ,  G03H1/16 ,  G03H1/26 ,  G03H2260/35 ,  G11B7/0065

    摘要： A holographic recording method and a holographic recording apparatus capable of selectively rewriting or erasing only desired data without degrading data other than the desired data are provided. Holograms are multiple recorded per file, and page data in one file is multiple recorded, while page data in one file and page data in another file are not multiple recorded. Therefore, only the desired file can be selectively rewritten or erased without degrading the other files.

    摘要翻译： 提供了一种全息记录方法和全息记录装置，其能够仅选择性地重写或擦除所需数据，而不会降低除所需数据以外的数据。 全息图是每个文件多个记录，一个文件中的页面数据被多次记录，而一个文件中的页面数据和另一个文件中的页面数据不被多重记录。 因此，只有期望的文件可以选择性地重写或删除，而不会降低其他文件。

    Hologram erasing method and hologram erasing apparatus
    10.
    发明授权
    Hologram erasing method and hologram erasing apparatus 有权
    全息擦除方法和全息擦除装置

    公开(公告)号：US07426168B2

    公开(公告)日：2008-09-16

    申请号：US10782758

    申请日：2004-02-23

    申请人： Katsunori Kawano ,  Jiro Minabe ,  Shin Yasuda ,  Tatsuya Maruyama ,  Norie Matsui

    发明人： Katsunori Kawano ,  Jiro Minabe ,  Shin Yasuda ,  Tatsuya Maruyama ,  Norie Matsui

    IPC分类号： G11B7/00

    CPC分类号： G11B7/0055 ,  G11B7/0065

    摘要： The present invention discloses a hologram erasing method, in which a predetermined hologram is erased by irradiating a predetermined region of a hologram recording medium in which the hologram to be erased is recorded with a reference light beam and a signal light beam holding a random data pattern at the same time. In this method, the signal light beam and the reference light beam interfere with each other in the medium, and a Fourier transform hologram recorded in the region where the interference occurs is destroyed and erased by interference light beam. That is, a data page for erasing including a random pattern is overwritten to erase an original data page. According to the present invention, the hologram recorded in the optical recording medium can be selectively and completely erased in a simple method.

    摘要翻译： 本发明公开了一种全息擦除方法，其中通过用参考光束照射其中记录要擦除的全息图的全息图记录介质的预定区域和保持随机数据图案的信号光束来擦除预定的全息图 与此同时。 在这种方法中，信号光束和参考光束在介质中彼此干涉，并且记录在发生干涉的区域中的傅立叶变换全息图被干涉光束破坏并被擦除。 也就是说，覆盖包括随机模式的用于擦除的数据页被覆盖以擦除原始数据页。 根据本发明，记录在光学记录介质中的全息图可以以简单的方法被选择性地和完全地擦除。