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    Method and device for encoding and reconstructing computer-generated video holograms
    2.
    发明授权
    Method and device for encoding and reconstructing computer-generated video holograms 有权
    用于编码和重建计算机生成的视频全息图的方法和装置

    公开(公告)号：US07643189B2

    公开(公告)日：2010-01-05

    申请号：US12111440

    申请日：2008-04-29

    申请人： Armin Schwerdtner ,  Ralf Haussler ,  Norbert Leister

    发明人： Armin Schwerdtner ,  Ralf Haussler ,  Norbert Leister

    IPC分类号： G03H1/26 ,  G02B27/22

    CPC分类号： G03H1/22 ,  G03H1/2205 ,  G03H1/2249 ,  G03H1/2286 ,  G03H1/2294 ,  G03H2001/0421 ,  G03H2001/2236 ,  G03H2001/2242 ,  G03H2001/303 ,  G03H2210/30 ,  G03H2222/22 ,  G03H2223/12 ,  G03H2226/05 ,  G03H2227/02 ,  G03H2227/05 ,  H04N13/31 ,  H04N13/312

    摘要： A method and a device for encoding and reconstructing computer-generated video holograms using a conventional LC display: it provides holographic reconstruction of three-dimensional scenes using electronically controllable pixel in a holographic array (3) with a conventional resolution, and is reasonably free from flickering and cross-talk. Reconstruction is in real time, and for both eyes at the same time, over a large viewing zone. The method takes advantage of an optical focusing means (2) in order to image vertically coherent light emitted by a line light source (1) into viewing windows (8R, 8L) after modulation by the pixel array (3). The holographic reconstruction (11) of the scene is rendered visible from viewing windows (8R, 8L) for both eyes of an observer by way of diffraction at the pixels. According to the invention, the controllable pixels are disposed in vertical pixel columns (15, 16), which encode separate holograms of the same scene for each of the viewer's eyes (R, L), where said holograms are one-dimensional in the vertical direction and horizontally interleaved. An image separation means (7) with separating elements arranged parallel to the pixel columns reveals the respective pixel columns (15, 15′ or 16, 16′) for one eye and covers them for the other eye.

    摘要翻译： 一种用于使用常规LC显示器对计算机生成的视频全息图进行编码和重建的方法和装置：它使用具有常规分辨率的全息阵列（3）中的电子可控像素提供三维场景的全息重构， 闪烁和串扰。 重建是实时的，双眼同时在一个大观景区。 该方法利用光学聚焦装置（2），以便在由像素阵列（3）调制之后，将由线光源（1）发射的垂直相干光成像到观察窗（8R，8L）中。 通过在像素处的衍射，场景的全息重建（11）从观察窗（8R，8L）对于观察者的双眼可见。 根据本发明，可控像素被布置在垂直像素列（15,16）中，其对于每个观看者的眼睛（R，L）编码相同场景的分离全息图，其中所述全息图在垂直方向上是一维的 方向和水平交错。 具有与像素列平行布置的分离元件的图像分离装置（7）显示用于一只眼睛的各个像素列（15,15'或16,16'），并且覆盖另一只眼睛。

    Device for holographic reconstruction of three-dimensional scenes
    3.
    发明申请
    Device for holographic reconstruction of three-dimensional scenes 有权
    三维场景全息重建装置

    公开(公告)号：US20060250671A1

    公开(公告)日：2006-11-09

    申请号：US11418946

    申请日：2006-05-05

    申请人： Armin Schwerdtner ,  Ralf Haussler ,  Norbert Leister

    发明人： Armin Schwerdtner ,  Ralf Haussler ,  Norbert Leister

    IPC分类号： G03H1/08

    CPC分类号： G03H1/2286 ,  G03H1/2249 ,  G03H1/2294 ,  G03H2001/2236 ,  G03H2001/2242 ,  G03H2001/2263 ,  G03H2001/2297 ,  G03H2210/30 ,  G03H2222/20 ,  G03H2222/22 ,  G03H2222/23 ,  G03H2222/24 ,  G03H2222/34 ,  G03H2223/12 ,  G03H2223/19 ,  G03H2225/55 ,  G03H2225/60 ,  G03H2226/05 ,  G03H2240/51

    摘要： A device for holographic reconstruction of three-dimensional scenes includes optical focusing means which directs sufficiently coherent light from light means to the eyes of at least one observer via a spatial light modulator that is encoded with holographic information. The device has a plurality of illumination units for illuminating the surface of the spatial light modulator (SLM); each unit comprises a focusing element (21/22/23 or 24), and a light means (LS1/LS2/LS3 or LS4) that emits sufficiently coherent light such that each of these illumination units illuminates one separate illuminated region (R1/R2/R3 or R4) of the surface, whereby the focusing element and the light means are arranged such that the light emitted by the light means (LS1-LS4) coincides close to or at the observer eyes.

    摘要翻译： 用于三维场景的全息重建的装置包括光学聚焦装置，其通过用全息信息编码的空间光调制器将来自光装置的足够相干的光引导至至少一个观察者的眼睛。 该装置具有用于照射空间光调制器（SLM）的表面的多个照明单元; 每个单元包括聚焦元件（21/22/23或24），以及光装置（LS＆lt; 1＆gt; / 2＆lt; 2＆gt; 或LS 3 4），其发射足够相干的光，使得这些照明单元中的每一个照射表面的一个单独的照明区域（R 1 / R 2 / R 3或R 4），由此聚焦元件和 光装置被布置成使得由光装置发射的光（LS 1-SUB 4）在观察者眼睛附近或在观察者眼睛处重合。

    Controllable illumination device
    5.
    发明授权
    Controllable illumination device 有权
    可控照明装置

    公开(公告)号：US08339695B2

    公开(公告)日：2012-12-25

    申请号：US11912328

    申请日：2006-04-25

    申请人： Ralf Haussler ,  Armin Schwerdtner

    发明人： Ralf Haussler ,  Armin Schwerdtner

    IPC分类号： G03H1/02

    CPC分类号： G03H1/2286 ,  G02B5/32 ,  G02B27/225 ,  G03H1/0005 ,  G03H1/2294 ,  G03H2001/0212 ,  G03H2222/34 ,  G03H2223/19 ,  H04N13/32

    摘要： The invention relates to a controllable illumination device for an autostereoscopic or holographic display, which illumination device contains an illumination matrix of primary light sources having at least one luminous element per light source and a controllable light modulator (SLM) and a reproduction matrix. A computer-generated hologram (CGH) illuminated by the primary light sources (11, . . . , 1n) is coded on the controllable light modulator (SLM) and generates, in at least one plane downstream of the SLM, a matrix—reconstructed from the computer-generated hologram (CGH)—of secondary light sources (2) having a secondary light distribution for the purpose of illuminating the reproduction matrix (4) and for the purpose of focussing in light bundles onto each eye of the viewer via an imaging matrix. The CGH is calculated and reconstructed on the basis of the number of and the positions of the viewers and the system parameters. Owing to the reconstruction of the secondary light sources in a plurality of planes, it is possible for the image information of the display to be tracked for the viewers not only in the case of lateral movements but also in the axial direction.

    摘要翻译： 本发明涉及一种用于自动立体或全息显示器的可控照明装置，该照明装置包含每个光源具有至少一个发光元件的初级光源的照明矩阵和可控光调制器（SLM）和再现矩阵。 由主光源（11 ...，1n）照明的计算机生成的全息图（CGH）被编码在可控光调制器（SLM）上，并且在SLM的下游的至少一个平面中生成矩阵重构的 从具有次级光分布的二次光源（2）的计算机产生的全息图（CGH）中，用于照亮再现矩阵（4），并且用于通过经由 成像矩阵。 基于观众的数量和位置以及系统参数来计算和重建CGH。 由于在多个平面中重建二次光源，不仅在侧向移动的情况下而且在轴向上也可以为观看者跟踪显示器的图像信息。

    Device for holographic reconstruction of three-dimensional scenes
    8.
    发明授权
    Device for holographic reconstruction of three-dimensional scenes 有权
    三维场景全息重建装置

    公开(公告)号：US07535607B2

    公开(公告)日：2009-05-19

    申请号：US11418946

    申请日：2006-05-05

    申请人： Armin Schwerdtner ,  Ralf Haussler ,  Norbert Leister

    发明人： Armin Schwerdtner ,  Ralf Haussler ,  Norbert Leister

    IPC分类号： G03H1/08 ,  G02B5/32

    CPC分类号： G03H1/2286 ,  G03H1/2249 ,  G03H1/2294 ,  G03H2001/2236 ,  G03H2001/2242 ,  G03H2001/2263 ,  G03H2001/2297 ,  G03H2210/30 ,  G03H2222/20 ,  G03H2222/22 ,  G03H2222/23 ,  G03H2222/24 ,  G03H2222/34 ,  G03H2223/12 ,  G03H2223/19 ,  G03H2225/55 ,  G03H2225/60 ,  G03H2226/05 ,  G03H2240/51

    摘要： A device for holographic reconstruction of three-dimensional scenes includes optical focusing means which directs sufficiently coherent light from light means to the eyes of at least one observer via a spatial light modulator that is encoded with holographic information. The device has a plurality of illumination units for illuminating the surface of the spatial light modulator (SLM); each unit comprises a focusing element (21/22/23 or 24), and a light means (LS1/LS2/LS3 or LS4) that emits sufficiently coherent light such that each of these illumination units illuminates one separate illuminated region (R1/R2/R3 or R4) of the surface, whereby the focusing element and the light means are arranged such that the light emitted by the light means (LS1-LS4) coincides close to or at the observer eyes.

    摘要翻译： 用于三维场景的全息重建的装置包括光学聚焦装置，其通过用全息信息编码的空间光调制器将来自光装置的足够相干的光引导至至少一个观察者的眼睛。 该装置具有用于照射空间光调制器（SLM）的表面的多个照明单元; 每个单元包括聚焦元件（21/22/23或24）和发出足够相干光的光装置（LS1 / LS2 / LS3或LS4），使得这些照明单元中的每一个照亮一个单独的照明区域（R1 / R2 / R3或R4），由此聚焦元件和光装置被布置成使得由光装置（LS1-LS4）发射的光在观察者眼睛附近或在观察者眼睛处重合。