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    • 1. 发明申请
    • METHOD FOR PREPARING A HOLOGRAM RECORDING MEDIUM
    • 制备霍洛姆记录介质的方法
    • US20110267664A1
    • 2011-11-03
    • US13180067
    • 2011-07-11
    • Mitsuru KITAMURAHidekazu OKUNOMasato TANINAKA
    • Mitsuru KITAMURAHidekazu OKUNOMasato TANINAKA
    • G03H1/08
    • G03H1/0891B42D25/328B42D2035/20G03H1/0011G03H1/08G03H1/0841G03H2001/0027G03H2001/2273G03H2001/303
    • Two original images to be recorded are prepared as data (S10). A plurality of unit regions, each having an adequate area to record interference fringes of visible light, are defined and positioned on a hologram recording surface (S20). A gradation pattern, with which appearance probabilities of two record attributes gradually change in space, is overlapped onto the recording surface, and to each unit region, one of either record attributes is assigned according to the appearance probabilities of the respective record attributes at each individual position (S30). In each unit region, to which the first record attribute is assigned, the first original image is recorded as an interference fringe pattern, a diffraction grating pattern, or a scattering structure pattern, and in each unit region, to which the second record attribute is assigned, the second original image is recorded as an interference fringe pattern, a diffraction grating pattern, or a scattering structure pattern (S40), and a record pattern is formed on a physical medium (S50).
    • 准备要记录的两个原始图像作为数据(S10)。 定义并定位在全息记录表面上的多个单位区域,每个区域具有足够的面积来记录可见光的干涉条纹(S20)。 将两个记录属性的外观概率在空间中逐渐变化的渐变图案重叠在记录表面上,并且对于每个单位区域,根据每个个体的各个记录属性的外观概率来分配记录属性之一 位置(S30)。 在分配了第一记录属性的每个单位区域中,第一原始图像被记录为干涉条纹图案,衍射光栅图案或散射结构图案,并且在每个单位区域中,第二记录属性为 将第二原始图像记录为干涉条纹图案,衍射光栅图案或散射结构图案(S40),并且在物理介质上形成记录图案(S50)。
    • 3. 发明申请
    • COMPUTER-GENERATED HOLOGRAM
    • 计算机生成的HOLOGRAM
    • US20090244665A1
    • 2009-10-01
    • US12483879
    • 2009-06-12
    • Mitsuru KITAMURA
    • Mitsuru KITAMURA
    • G03H1/08G03H1/26
    • G03H1/08G03H1/265G03H1/268G03H2001/0423G03H2001/226G03H2001/2273G03H2210/30G03H2210/441
    • For the purpose of preparing a computer-generated hologram, which has very high resolution and many numbers of parallaxes, the present invention provides a computer-generated holographic stereogram, wherein a virtual point light source group (11) is set up spatially on a side opposite to the observation side of the hologram (12), luminance angular distribution AWLci (θxz, θyz) of divergent light diverged from each of the virtual point light sources of said virtual point light source group toward observation side is divided by angular division, and within the divided angle, among the multiple images positioned on the plane of said virtual point light source group (11), a divergent light to be equal to the divergent light diverged from a point of amplitude equal to the density of pixel of the image corresponding to each of divided angle or equal to a value in a certain fixed relation with the density of the images at the position of the virtual point light source is recorded as the object light (1) at one of the positions on the observation side of the virtual point light source group.
    • 为了制备具有非常高的分辨率和许多视差数量的计算机生成的全息图,本发明提供一种计算机生成的全息立体图,其中虚拟点光源组(11)在空间上设置在一侧 与所述全息图(12)的观察侧相对,从所述虚拟点光源组的每个虚拟点光源向观察侧发散的发散光的亮度角分布AWLci(taxz,tayz)被分割,并且 在分割角度内,在位于所述虚拟点光源组(11)的平面上的多个图像之中,发射光等于从等于相应于图像的像素的像素密度的振幅点分离的发散光 对于分割角度的每一个或等于与虚拟点光源的位置处的图像的浓度成一定固定关系的值被记录为t 他在虚拟点光源组的观察侧的位置之一处对准光(1)。
    • 5. 发明申请
    • METHOD AND DEVICE FOR MANUFACTURING A HOLOGRAM RECORDING MEDIUM
    • 用于制造HOLOGRAM记录介质的方法和装置
    • US20100188717A1
    • 2010-07-29
    • US12727466
    • 2010-03-19
    • Mitsuru KITAMURA
    • Mitsuru KITAMURA
    • G03H1/02
    • G03H1/0808G03H2210/30
    • Arrangements are made to enable different original images to be reproduced upon observation from different positions and yet enable reproduced images of high resolution to be obtained. In a case of recording two original images, each of the two original images Ia and Ib is defined as a set of point light sources in an XYZ global coordinate system, and two propagation spaces Sa and Sb, each enabling propagation of light emitted from an origin Q of an αβγ local coordinate system, are defined. A predetermined recording plane and a reference light are set in the XYZ coordinate system, and an interference fringe pattern, which is formed on the recording plane by object light components from the point light sources constituting the respective original images and the reference light, is determined by computation. In this process, the computation is performed upon deeming that a light from a point light source belonging to the original image Ia spreads only within the propagation space Sa, with the origin Q of the αβγ coordinate system being overlappingly set at the position of the point light source, and that a light from a point light source belonging to the original image Ib spreads only within the propagation space Sb, with the origin Q of the αβγ coordinate system being overlappingly set at the position of the point light source.
    • 进行布置,以使得不同的原始图像在从不同位置观察时被再现,并且能够获得高分辨率的再现图像。 在记录两个原始图像的情况下,两个原始图像Ia和Ib中的每一个被定义为XYZ全局坐标系中的一组点光源,以及两个传播空间Sa和Sb,每个传播空间Sa和Sb能够传播从 定义了α&bgr;γ局部坐标系的原点Q。 在XYZ坐标系中设置预定的记录面和基准光,并且确定由来自构成各原始图像的点光源和基准光的物体光分量在记录面上形成的干涉条纹图案 通过计算。 在该处理中,在认为来自属于原始图像Ia的点光源的光仅在传播空间Sa内扩散的情况下进行计算,将α&bgr;γ坐标系的原点Q重叠设置在 点光源,并且来自属于原始图像Ib的点光源的光仅在传播空间Sb内扩散,其中α&bgr;γ坐标系的原点Q重叠地设置在点光源的位置 。
    • 8. 发明申请
    • COMPUTER-GENERATED HOLOGRAM AND ITS FABRICATION METHOD
    • 计算机生成器及其制造方法
    • US20080057407A1
    • 2008-03-06
    • US11848395
    • 2007-08-31
    • Mitsuru KITAMURAAkiko Kitamura
    • Mitsuru KITAMURAAkiko Kitamura
    • G03F7/00
    • G03H1/0808G03H2001/2271G03H2001/303G03H2210/454
    • The invention relates to a computer-generated hologram that is capable of reconstructing a full-color image and achieving a resolution higher than ever before. The recording plane 20 of the hologram is divided by a multiplicity of parallel sections in the horizontal direction to define a multiplicity of areas C1r, C1g, C1b, etc. Amplitude information and phase information corresponding to periodically different wavelengths RGB are recorded in a direction traversing the multiplicity of areas. Upon reconstruction by given illumination Lw, reconstructing light having periodically different wavelengths diffracted from the amplitude information and phase information recorded in the respective areas travels toward the recording plane of the hologram such that the reconstructed image can be viewed at a point-of-view position that is a given position E. Information about the same portion of the original image is recorded in individual points belonging to the same area, and information about another corresponding portion of the original image is recorded in individual points belonging to another area.
    • 本发明涉及一种计算机生成的全息图,其能够重建全色图像并且实现比以前更高的分辨率。 全息图的记录平面20在水平方向上划分多个平行部分以限定多个区域C 1 r,C 1 g,C 1 b等。与周期性不同的波长RGB对应的幅度信息和相位信息 被记录在穿过多个区域的方向上。 在通过给定照明Lw进行重建时,重建具有从振幅信息衍射的周期性不同波长的光和记录在各个区域中的相位信息朝向全息图的记录平面移动,使得可以在观察点位置观看重建图像 作为给定位置E.关于原始图像的相同部分的信息被记录在属于相同区域的各个点中,并且关于原始图像的另一对应部分的信息被记录在属于另一区域的各个点中。