公开(公告)号：US07557970B2

公开(公告)日：2009-07-07

申请号：US11493611

申请日：2006-07-27

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

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

IPC分类号： G03H1/12

CPC分类号： G11B7/0065 ,  G11B7/128 ,  G11B7/2403 ,  G11B7/24044 ,  Y10S359/90

摘要： A hologram recording method, which records signal light onto an optical recording medium as a hologram, includes: placing a signal light region, which generates signal light, and a reference light region, which generates reference light, symmetrically with respect to an optical axis of coherent light by displaying, on a spatial light modulator which spatially modulates the incident coherent light, a pattern which divides a modulating region into a plurality of regions; generating signal light and reference light by modulating the incident coherent light by the spatial light modulator; simultaneously and coaxially illuminating, onto a reflecting-type optical recording medium, the signal light and the reference light generated from the signal light region and the reference light region disposed symmetrically to one another; and recording the signal light on the optical recording medium as a hologram.

摘要翻译： 将信号光记录在作为全息图的光记录介质上的全息图记录方法包括：将产生信号光的信号光区域和产生参考光的参考光区域相对于光轴对称地生成参考光区域 在空间光调制器上显示相干光，空间光调制器对入射相干光进行空间调制，将调制区域划分为多个区域的图案; 通过调制来自空间光调制器的入射相干光产生信号光和参考光; 同时并同轴地照射到反射型光学记录介质上，信号光和从信号光区域产生的参考光和参考光区域彼此对称设置; 并将信号光记录在光记录介质上作为全息图。

公开(公告)号：US20070147801A1

公开(公告)日：2007-06-28

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： H04N5/00

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。

公开(公告)号：US20070133113A1

公开(公告)日：2007-06-14

申请号：US11485962

申请日：2006-07-14

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

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

IPC分类号： G02B7/182

CPC分类号： G03H1/16 ,  G03H1/02 ,  G03H2001/0204 ,  G11B7/0065 ,  G11C13/042

摘要： There is proposed a hologram recording method that includes: generating signal light by superimposing a periodic intensity distribution or phase distribution on an intensity distribution of light that expresses binary digital data as a light/dark image; Fourier transforming the signal light; illuminating Fourier transformed signal light and reference light simultaneously on an optical recording medium; and recording the signal light as a hologram.

摘要翻译： 提出了一种全息图记录方法，其包括：通过将表示二进制数字数据的光的强度分布叠加在一个亮/暗图像上的周期性强度分布或相位分布来产生信号光; 傅立叶变换信号光; 在光学记录介质上同时照射傅里叶变换信号光和参考光; 并将信号光记录为全息图。

公开(公告)号：US07974173B2

公开(公告)日：2011-07-05

申请号：US12013506

申请日：2008-01-14

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

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

IPC分类号： G11B7/135

CPC分类号： G11B7/0065 ,  G11B7/1359

摘要： An optical device for holographic recording or reading is provided and includes: a light emission unit that emits light to be irradiated on an optical recording medium, the light being recording or reading light; a first prism unit that moves in accordance with a moving speed of the optical recording medium and refracts the light to move the light irradiated on the optical recording medium over a distance in a moving direction of the optical recording medium so that the light is irradiated on substantially the same position on the optical recording medium for a period of time; and a second prism unit that moves in accordance with the moving speed of the first prism unit to compensate for an optical path length of the light.

摘要翻译： 提供了一种用于全息记录或读取的光学装置，包括：发射要在光学记录介质上照射的光的发光单元，该光被记录或读取光; 第一棱镜单元，其根据光学记录介质的移动速度移动，并折射光以将照射在光学记录介质上的光沿光学记录介质的移动方向移动一定距离，使得光被照射在 在光记录介质上基本相同的位置一段时间; 以及第二棱镜单元，其根据第一棱镜单元的移动速度移动以补偿光的光路长度。

公开(公告)号：US07846615B2

公开(公告)日：2010-12-07

申请号：US11902435

申请日：2007-09-21

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

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

IPC分类号： G03H1/02

CPC分类号： G03F7/001 ,  G03F7/038 ,  G03H1/02 ,  G03H2001/0264

摘要： A hologram recording material contains a molecule having intrinsic birefringence and a photoresponsive macromolecule represented by the following formula (1). in formula (1), L1 representing a bivalent linking group, X representing a group having a substituent constant σ based on Hammett's rule of a value of more than 0, the maximum absorption wavelength of an azobenzene group bonding to X being approximately 360 nm or less, A representing a group that is a component of a repeating unit with a carbon number of 2 or more that is a component of a macromolecular main chain, nx representing an integer of 1 or 2, and n representing an integer of 1 or more.

摘要翻译： 全息记录材料含有具有固有双折射的分子和由下式（1）表示的光响应性高分子。 在式（1）中，表示二价连接基团的L表示取代基常数＆sgr的基团; 基于哈米特的大于0的规则，与X结合的偶氮苯基团的最大吸收波长为360nm以下，A为碳原子数为2以上的重复单元的成分的基团 即大分子主链的成分，nx表示1或2的整数，n表示1以上的整数。

公开(公告)号：US07826114B2

公开(公告)日：2010-11-02

申请号：US11790016

申请日：2007-04-23

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

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

IPC分类号： G03H1/16

CPC分类号： G03H1/16 ,  G11B7/0065 ,  G11B7/128

摘要： A hologram recording method is disclosed in which: signal light includes a plurality of arranged reversal regions in which lightness and darkness of plural pixels of a light and dark image is reversed for an intensity distribution of the light and dark image; the signal light is Fourier-transformed; the Fourier-transformed signal light and reference light are illuminated onto an optical recording medium; and the signal light is recorded as a hologram. Also is disclosed an apparatus capable of implementing the hologram recording method, and an optical recording medium usable with the method.

摘要翻译： 公开了一种全息图记录方法，其中：信号光包括多个布置的反转区域，其中亮和暗图像的多个像素的亮度和暗度相反，用于亮和暗图像的强度分布; 信号光被傅里叶变换; 傅里叶变换的信号光和参考光被照射到光学记录介质上; 信号光被记录为全息图。 还公开了能够实现全息图记录方法的装置和可用于该方法的光学记录介质。

公开(公告)号：US07529008B2

公开(公告)日：2009-05-05

申请号：US11604736

申请日：2006-11-28

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

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

IPC分类号： G03H1/10 ,  G03H1/12

CPC分类号： G03H1/30 ,  G03H1/0465 ,  G03H2222/35 ,  G11B7/00772 ,  G11B7/083 ,  G11B7/08564 ,  G11B7/1362 ,  G11B7/1369

摘要： A hologram recording method for recording information of signal light as holograms in an optical recording medium, which includes illuminating signal light at the optical recording medium; illuminating reference light at the optical recording medium simultaneously with the signal light such that an interference pattern is formed by the signal light and the reference light intersecting in the optical recording medium; and shifting a region in the optical recording medium at which the signal light and the reference light intersect, by shifting an illumination position of the reference light along an optical axis of the signal light, thereby recording a plurality of holograms in the recording medium.

摘要翻译： 一种全息图记录方法，用于将信号光作为全息图的信息记录在光学记录介质中，其包括在光学记录介质处照射信号光; 在光记录介质上与信号光同时照射参考光，使得由在光记录介质中相交的信号光和参考光形成干涉图案; 以及通过沿信号光的光轴移动参考光的照明位置，移动信号光和参考光相交的光记录介质中的区域，从而在记录介质中记录多个全息图。

公开(公告)号：US07511867B2

公开(公告)日：2009-03-31

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 ,  G03H1/08

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。

公开(公告)号：US20080151734A1

公开(公告)日：2008-06-26

申请号：US11808711

申请日：2007-06-12

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

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

IPC分类号： G11B7/00 ,  G03H1/26 ,  G11C13/04

CPC分类号： G11C13/042 ,  G03H1/16 ,  G11B7/0065 ,  G11B7/245 ,  G11B7/2467

摘要： There is provided a hologram recording method, including generating a signal light which is spatially modulated such that digital data is represented by an image of intensity distribution, irradiating the signal light on an optical recording medium after a Fourier transformation of the signal light such that a zero-order component of the signal light comes into focus at a point removed from the optical recording medium, forming a diffraction grating in the optical recording medium by interference between the zero-order component of the signal light and a high-order component thereof, and recording digital data represented by the signal light as a hologram.

摘要翻译： 提供一种全息图记录方法，包括生成空间调制的信号光，使得数字数据由强度分布的图像表示，在信号光的傅立叶变换之后将信号光照射在光学记录介质上，使得 信号光的零级分量在从光记录介质去除的点处聚焦，通过信号光的零级分量与其高阶分量之间的干扰在光记录介质中形成衍射光栅， 并记录由信号光表示的数字数据作为全息图。

公开(公告)号：US20070065019A1

公开(公告)日：2007-03-22

申请号：US11348488

申请日：2006-02-07

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

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

IPC分类号： G06K9/36

CPC分类号： G11B7/0065 ,  G11B7/00781 ,  G11B20/10 ,  G11B2220/2504

摘要： A two-dimensional coding method includes: using a two-dimensional image containing plural reference pixels each having a different brightness and data pixels representing data in accordance with brightness; and coding a binary sequence of plural bits to be recorded as a hologram by matching the brightness level of the data pixel based on the brightnesses of the plural reference pixels.

摘要翻译： 二维编码方法包括：使用包含具有不同亮度的多个参考像素的二维图像和根据亮度表示数据的数据像素; 并且通过基于多个参考像素的亮度来匹配数据像素的亮度级，来编码要记录为全息图的多个比特的二进制序列。