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    Hologram recording method and hologram recording device
    4.
    发明申请
    Hologram recording method and hologram recording device 有权
    全息记录方法和全息记录装置

    公开(公告)号：US20080024848A1

    公开(公告)日：2008-01-31

    申请号：US11703791

    申请日：2007-02-08

    申请人： Katsunori Kawano ,  Jiro Minabe ,  Koichi Haga ,  Yasuhiro Ogasawara ,  Shin Yasuda ,  Kazuhiro Hayashi ,  Hisae Yoshizawa ,  Makoto Furuki

    发明人： Katsunori Kawano ,  Jiro Minabe ,  Koichi Haga ,  Yasuhiro Ogasawara ,  Shin Yasuda ,  Kazuhiro Hayashi ,  Hisae Yoshizawa ,  Makoto Furuki

    IPC分类号： G02B5/32

    CPC分类号： G02B5/32

    摘要： There is provided a hologram recording method including: generating light of a pattern in which a plurality of unit blocks, which include at least one pixel and express luminance, are arrayed, the pattern being sectioned into a region of a signal beam and a region of a reference beam, and being generated such that the region of the reference beam includes a plurality of unit blocks whose numbers of pixels are different; collecting the generated light at a common optical system, and illuminating it onto an optical recording medium; and recording, as a hologram, data which the signal beam expresses.

    摘要翻译： 提供了一种全息图记录方法，包括：产生其中排列包括至少一个像素和表示亮度的多个单位块的图案的光，该图案被分割成信号光束的区域和 参考光束，并且被生成使得参考光束的区域包括多个像素数不同的单位块; 在普通光学系统上收集所产生的光，并将其照射到光学记录介质上; 并且作为全息图记录信号光束表达的数据。

    Method and apparatus for recording hologram, method and apparatus for reproducing hologram, and information retaining body
    5.
    发明授权
    Method and apparatus for recording hologram, method and apparatus for reproducing hologram, and information retaining body 有权
    用于记录全息图的方法和装置，用于再现全息图的方法和装置以及信息保持体

    公开(公告)号：US07319550B2

    公开(公告)日：2008-01-15

    申请号：US11006614

    申请日：2004-12-08

    申请人： Kazuhiro Hayashi ,  Katsunori Kawano ,  Yasuhiro Ogasawara ,  Jiro Minabe ,  Shin Yasuda ,  Hisae Yoshizawa ,  Norie Matsui

    发明人： Kazuhiro Hayashi ,  Katsunori Kawano ,  Yasuhiro Ogasawara ,  Jiro Minabe ,  Shin Yasuda ,  Hisae Yoshizawa ,  Norie Matsui

    IPC分类号： G03H1/16 ,  G03H1/26 ,  B42D15/00

    CPC分类号： G06K19/06046 ,  G03H2001/0415 ,  G06K2019/0629

    摘要： While Fourier transformation of a signal light beam is performed to perform recording during holographic recording so that a focal point is formed outside a holographic recording layer (defocus recording), an aperture is arranged on an outgoing side of the reproduced signal light beam (reproduction light beam), the reproduction light beam is focused at the aperture, and low-order components of a Fourier transform image of the reproduction light beam are selectively transmitted to detect only the transmitted light beam. Therefore, information recorded as the hologram in the holographic recording layer can be reproduced with high S/N ratio from the holographic recording layer added onto a support body, particularly onto a sheet member having non-optical quality such as paper and a plastic card.

    摘要翻译： 当在全息记录期间执行信号光束的傅里叶变换以在全息记录层（散焦记录）之外形成焦点时，在再现信号光束的出射侧（再现光 光束），再现光束被聚焦在孔径处，并且选择性地透射再现光束的傅立叶变换图像的低阶分量，以仅检测透射光束。 因此，可以从添加到支撑体上的全息记录层，特别是具有非光学质量的片状构件（例如纸张和塑料卡）以高S / N比率再现记录在全息记录层中的全息图的信息。

    Hologram reproduction method and apparatus
    6.
    发明申请
    Hologram reproduction method and apparatus 有权
    全息图再现方法和装置

    公开(公告)号：US20070146846A1

    公开(公告)日：2007-06-28

    申请号：US11527577

    申请日：2006-09-27

    申请人： Shin Yasuda ,  Katsunori Kawano ,  Koichi Haga ,  Jiro Minabe ,  Yasuhiro Ogasawara ,  Kazuhiro Hayashi ,  Hisae Yoshizawa ,  Makoto Furuki

    发明人： Shin Yasuda ,  Katsunori Kawano ,  Koichi Haga ,  Jiro Minabe ,  Yasuhiro Ogasawara ,  Kazuhiro Hayashi ,  Hisae Yoshizawa ,  Makoto Furuki

    IPC分类号： G03H1/16

    CPC分类号： G11B7/0065 ,  G03H1/041 ,  G03H2223/12 ,  G03H2223/20

    摘要： A hologram reproduction method for reproducing a hologram from an optical recording medium in which the hologram is recorded by Fourier transforming a signal light, in which digital data is represented by an image of intensity distribution, and a reference light, and simultaneously irradiating the lights in a state in which a direct current component is removed from at least the Fourier transformed signal light onto the optical recording medium is provided. The method including: irradiating a read out reference light onto the optical recording medium, and generating a diffracted light from the recorded hologram; generating all or a part of a direct current component contained in a Fourier transformed image of the signal light; combining the diffracted light and the generated all or a part of the direct current component, and generating a combined beam; and reproducing the signal light by inverse-Fourier transforming the combined beam.

    摘要翻译： 一种全息图再现方法，用于通过对其中数字数据由强度分布的图像表示的信号光和参考光进行傅里叶变换来记录全息图的光记录介质中再现全息图，同时将 提供了将直流分量从至少傅里叶变换信号光去除到光记录介质上的状态。 该方法包括：将读出的参考光照射到光学记录介质上，并从记录的全息图产生衍射光; 产生包含在信号光的傅里叶变换图像中的直流分量的全部或一部分; 组合衍射光和产生的全部或一部分直流分量，并产生组合光束; 以及通过对组合光束进行傅里叶逆变换来再现信号光。