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    Data playback method and device for data recorded as a hologram
    4.
    发明授权
    Data playback method and device for data recorded as a hologram 有权
    数据回放方法和记录为全息图的数据的装置

    公开(公告)号：US07826324B2

    公开(公告)日：2010-11-02

    申请号：US11482166

    申请日：2006-07-07

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

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

    IPC分类号： G11B7/00 ,  G03H1/16

    CPC分类号： G03H1/22 ,  G03H1/0005 ,  G03H1/16 ,  G06T5/50 ,  G11B7/0065

    摘要： There is provided a data playback method including: acquiring first image data by illuminating reference light for reading onto an optical recording medium on which a hologram has been recorded by Fourier transforming and simultaneously illuminating reference light and signal light expressing digital data as a light-and-dark image, and detecting an inverse Fourier-transform image of diffracted light which is diffracted by the recorded hologram; acquiring second image data, which is a reversal image of the first image data, by generating combined light by combining the diffracted light and a dc component whose phase is different than a phase of a dc component of the signal light included in the diffracted light, and detecting an inverse Fourier-transform image of the combined light; and computing a difference in luminance for each pixel of the light-and-dark image, by carrying out computing processing by using the first and second image data.

    摘要翻译： 提供了一种数据播放方法，包括：通过用参考光照亮参考光，通过傅里叶变换将照射参考光照射到已经记录了全息图的光记录介质上并同时照亮表示数字数据的信号光作为光，并获取第一图像数据，以及 并且检测被所记录的全息图衍射的衍射光的逆傅里叶变换图像; 通过组合衍射光和相位不同于包含在衍射光中的信号光的直流分量的相位的直流分量来产生组合光来获取作为第一图像数据的反转图像的第二图像数据， 以及检测所述组合光的逆傅里叶变换图像; 以及通过使用第一和第二图像数据执行计算处理来计算亮 - 暗图像的每个像素的亮度差。

    Hologram recording method and hologram recording device
    10.
    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。