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1. 发明授权

US07969633B2 Method and device for computing computer-generated video holograms 有权
标题翻译：用于计算计算机生成的视频全息图的方法和装置
公开(公告)号：US07969633B2
公开(公告)日：2011-06-28
申请号：US12534317
申请日：2009-08-03
申请人： Armin Schwerdtner
发明人： Armin Schwerdtner
IPC分类号： G03H1/08 , G03H1/16
CPC分类号： G03H1/0808 , G03H1/0005 , G03H1/22 , G03H1/2294 , G03H1/268 , G03H1/32 , G03H2001/0088 , G03H2001/0816 , G03H2001/0858 , G03H2001/2236 , G03H2001/2242 , G03H2001/2263 , G03H2001/2271 , G03H2001/269 , G03H2001/303 , G03H2210/30 , G03H2210/33 , G03H2210/454 , G03H2222/34 , G03H2223/16 , G03H2225/35 , G03H2226/02 , G03H2226/05
摘要： The data defining an object to be holographically reconstructed is first arranged into a number of virtual section layers, each layer defining a two-dimensional object data sets, such that a video hologram data set can be calculated from some or all of these two-dimensional object data sets. The first step is to transform each two-dimensional object data set to a two-dimensional wave field distribution. This wave field distribution is calculated for a virtual observer window in a reference layer at a finite distance from the video hologram layer. Next, the calculated two-dimensional wave field distributions for the virtual observer window, for all two-dimensional object data sets of section layers, are added to define an aggregated observer window data set. Then, the aggregated observer window data set is transformed from the reference layer to the video hologram layer, to generate the video hologram data set for the computer-generated video hologram.
摘要翻译：定义要被全息重建的对象的数据首先被布置成多个虚拟部分层，每个层限定二维对象数据集，使得可以从这些二维中的一些或全部计算视频全息图数据集对象数据集。第一步是将每个二维对象数据集转换为二维波场分布。对于距离视频全息图层有限距离的参考层中的虚拟观察窗计算该波场分布。接下来，添加用于虚拟观察者窗口的计算的二维波场分布，用于分段层的所有二维对象数据集，以定义聚合的观察窗数据集。然后，将聚合的观察者窗口数据集从参考层变换为视频全息图层，以产生用于计算机生成的视频全息图的视频全息图数据集。

2. 发明授权

US07929189B2 Video hologram and device for reconstructing video holograms using geometrical calculation 有权
标题翻译：视频全息图和使用几何计算重建视频全息图的装置
公开(公告)号：US07929189B2
公开(公告)日：2011-04-19
申请号：US11427644
申请日：2006-06-29
申请人： Armin Schwerdtner
发明人： Armin Schwerdtner
IPC分类号： G03H1/08
CPC分类号： G03H1/16 , G03H1/08 , G03H1/2286 , G03H1/2294 , G03H2001/0858 , G03H2001/2236 , G03H2001/2242 , G03H2001/2271 , G03H2210/30 , G03H2222/22 , G03H2222/34 , G03H2226/05
摘要： A geometrical method for working out how to encode a hologram onto a hologram bearing medium is disclosed. The method involves (a) selecting a point on the three dimensional scene to be reconstructed; then (b) defining a virtual observer window through which the reconstructed three dimensional scene will be seen; then (c) tracing a pyramid from the edges of the observer window through the point and onto a region that forms only a portion of a hologram bearing medium; and finally (d) generating, solely in that region of the hologram-bearing medium, holographic information needed to generate a holographic reconstruction of the point.
摘要翻译：公开了一种将全息图编码到全息图承载介质上的几何方法。该方法涉及（a）选择要重建的三维场景上的点; 然后（b）定义虚拟观察者窗口，通过该虚拟观察器窗口可以看到重构的三维场景; 然后（c）从观察者窗口的边缘通过点跟踪到仅形成全息图承载介质的一部分的区域上的金字塔; 并且最后（d）仅在全息图承载介质的区域中产生产生该点的全息重建所需的全息信息。

3. 发明授权

US07839548B2 Video hologram and device for reconstructing video holograms 有权
标题翻译：视频全息图和重建视频全息图的设备
公开(公告)号：US07839548B2
公开(公告)日：2010-11-23
申请号：US10534877
申请日：2003-11-11
申请人： Armin Schwerdtner
发明人： Armin Schwerdtner
IPC分类号： G03H1/08
CPC分类号： G03H1/16 , G03H1/08 , G03H1/2286 , G03H1/2294 , G03H2001/0858 , G03H2001/2236 , G03H2001/2242 , G03H2001/2271 , G03H2210/30 , G03H2222/22 , G03H2222/34 , G03H2226/05
摘要： The invention relates to video holograms and devices for reconstructing video holograms, comprising an optical system that consists of a light source, lens and the video hologram that is composed of cells arranged in a matrix or a regular pattern with at least one opening per cell, the phase or amplitude of said opening being controllable. The video holograms and devices for reconstructing the same are characterized in that holographic video representations of expanded spatial objects can be achieved in a wide viewing area in real time using controllable displays, whereby the objects are either computer-generated or created by different means. The space-bandwidth product (SBP) of the hologram is thus reduced to a minimum and the periodicity interval of the Fourier spectrum is used as a viewing window on the inverse transformation plane, through which the object is visible in the preceding space. The mobility of the viewer(s) is achieved by tracking the viewing window. The invention can be advantageously used in the television, multimedia, games and construction fields, in military and medical technology, in addition to other economic and social areas.
摘要翻译：本发明涉及用于重建视频全息图的视频全息图和设备，包括由光源，透镜和视频全息图组成的光学系统，该光学系统由以每个单元至少有一个开口的矩阵或规则图案排列的单元组成，所述开口的相位或振幅是可控的。视频全息图及其重建装置的特征在于，可以使用可控显示器实时地在广阔的观看区域中实现扩展空间物体的全息影像表示，由此物体由计算机生成或通过不同的方式产生。因此，全息图的空间带宽乘积（SBP）被减少到最小，并且傅立叶频谱的周期性间隔被用作在逆变换平面上的观察窗口，物体在前一空间中可见。通过跟踪观看窗口来实现观看者的移动性。除了其他经济和社会领域之外，本发明可以有利地用于电视，多媒体，游戏和建筑领域，军事和医疗技术领域。

4. 发明授权

US07643189B2 Method and device for encoding and reconstructing computer-generated video holograms 有权
标题翻译：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。

5. 发明授权

US07425069B2 Autostereoscopic multi-user display 有权
标题翻译：自动立体多用户显示
公开(公告)号：US07425069B2
公开(公告)日：2008-09-16
申请号：US10569434
申请日：2004-01-08
申请人： Armin Schwerdtner , Alexander Schwerdtner , Bo Kroll
发明人： Armin Schwerdtner , Alexander Schwerdtner , Bo Kroll
IPC分类号： G02B27/24
CPC分类号： H04N13/359 , H04N13/32 , H04N13/354
摘要： The invention relates to an autostereoscopic multi-user display comprising a focussing element and a selectable display for the time-sequential representation of 2D and/or 3D images. When viewed in the direction of the observer, said display contains a sweet-spot unit and an image matrix, which function separately from one another. The sweet-spot unit focuses a light distribution with a large surface area onto the eyes of the observer by means of a lateral sweet-spot extension, which is greater than or equal to the distance between the eyes of the observer. The sweet-spot bundle traverses the imaging matrix completely in a uniform manner on its way to the observer(s) and is thus modulated by the image content of the image matrix. The size of the sweet spot reduces the need for tracking precision. The sweet-spot unit consists of an illumination and imaging matrix. The illumination matrix is situated approximately in the front focal distance of the imaging matrix and can consist of backlight and an electronic shutter with controllable apertures or can be another suitable component. According to one embodiment, the shutter and the image matrix are identical in their pixel and sub-pixel geometry. The imaging matrix can be a double-lenticular, holographic optical element or similar.
摘要翻译：本发明涉及一种自动立体多用户显示器，其包括聚焦元件和用于2D和/或3D图像的时间顺序表示的可选显示器。当从观察者的方向观察时，所述显示器包含彼此分开起作用的甜点单元和图像矩阵。甜点单元通过横向甜点延伸将具有大表面积的光分布聚焦到观察者的眼睛上，其大于或等于观察者眼睛之间的距离。甜点束在其到达观察者的途中以均匀的方式完全穿越成像矩阵，并且因此被图像矩阵的图像内容调制。甜蜜点的大小减少了跟踪精度的需要。甜点单元由照明和成像矩阵组成。照明矩阵大致位于成像矩阵的前焦距处，并且可以由背光源和具有可控孔的电子快门组成，或者可以是另一适合的部件。根据一个实施例，快门和图像矩阵的像素和子像素几何形状相同。成像矩阵可以是双透镜，全息光学元件或类似物。

6. 发明申请

US20070268590A1 Lenticule and Prism Unit 审中-公开
标题翻译：圆锥和棱镜单元
公开(公告)号：US20070268590A1
公开(公告)日：2007-11-22
申请号：US11573847
申请日：2005-04-25
申请人： Armin Schwerdtner
发明人： Armin Schwerdtner
IPC分类号： G02B27/10
CPC分类号： G02B27/2214 , H04N13/305 , H04N13/32
摘要： This invention relates to a lenticule-prism-unit and to an illumination device for an autostereoscopic display. The display comprises (seen in the direction of light propagation) an illumination matrix (7), a projection matrix (8) and a transmissive image matrix (5). The illumination matrix consists of a multitude of controllable illumination elements (21). The projection matrix (8) focuses the light of these illumination elements (21) such that the image matrix (5) and a preferred visibility region (6) are illuminated in a directed manner. According to this invention, the projection matrix (8) comprises a lenticular array (LM) and a prism mask (PM) with wedge elements (K1, K2, . . . ) and coplanar elements (P1, P2, . . . ). The elements (K1, K2, . . . , P1, P2, . . . ) are arranged such that a multiple number of projections of the light of an illumination element (21) are projected into the visibility region (6), thus generating a broadened resultant luminance distribution (V) stretching from (A) to (C′). The resultant projections of laterally adjacent illumination elements are overlapped at their margins, thus creating a near-homogeneous luminance distribution (V). The image quality increases considerably thanks to the homogeneous brightness thus achieved.
摘要翻译：本发明涉及一种微透镜棱镜单元和一种用于自动立体显示的照明装置。显示器包括（沿光传播的方向）照明矩阵（7），投影矩阵（8）和透射图像矩阵（5）。照明矩阵由多个可控照明元件（21）组成。投影矩阵（8）将这些照明元件（21）的光聚焦，使得图像矩阵（5）和优选的可视区域（6）以有向的方式照亮。根据本发明，投影矩阵（8）包括具有楔形元件（K 1，K 2，...）和共面元件（P 1，P 2，...）的透镜阵列（LM）和棱镜掩模（PM）。 ...）。元件（K 1，K 2，...，P 1，P 2，...）被布置成使得照明元件（21）的光的多个突起投影到可见性区域（6）），从而产生从（A）延伸到（C'）的扩大的合成亮度分布（V）。横向相邻的照明元件的所得投影在其边缘处重叠，从而产生近均匀的亮度分布（V）。由于实现的均匀亮度，图像质量显着增加。

7. 发明申请

US20070247590A1 Autostereoscopic Multi-User Display with Directed Illumination 审中-公开
标题翻译：具有定向照明的自动立体多用户显示
公开(公告)号：US20070247590A1
公开(公告)日：2007-10-25
申请号：US11573490
申请日：2005-01-24
申请人： Armin Schwerdtner
发明人： Armin Schwerdtner
IPC分类号： G03B21/00
CPC分类号： H04N13/307 , H04N13/305 , H04N13/312 , H04N13/32 , H04N13/368 , H04N13/376
摘要： The invention relates to autostereoscopic multi-user displays with a sequential representation consisting of a sweet-spot unit and an image matrix. The sweet-spot unit, configured from an illumination and focusing matrix and positioned in front of the image matrix, focuses approximately parallel light bundles in sweet spots onto the eyes of observers. The aim of the invention is to achieve, by optical means, a tracking with a clear image allocation for observers located at a lateral distance from one another that is less than the distance between the eyes. The freedom of movement in terms of the display should be maintained and the information that is assigned to each observer should remain private with regard to other users. To achieve this, the sweet spots are limited horizontally and vertically with the aid of a focusing matrix, which consists of two crossed lens arrays L1 and L2, or a two-dimensional lens array comprising lenses that are arranged in a matrix, or a double lens array. Said focusing matrix forms a sweet-spot matrix comprising two-dimensionally limited sweet-spot pairs, which contain all controllable observer positions. Autostereoscopic displays of this type can be used in a 2D and/or 3D mode.
摘要翻译：本发明涉及具有由甜点单元和图像矩阵组成的顺序表示的自动立体多用户显示器。由照明和聚焦矩阵构成并位于图像矩阵前面的甜点单元将近似平行的光束聚焦在观察者的眼睛上。本发明的目的是通过光学装置实现具有清晰图像分配的跟踪，用于彼此相距小于眼睛之间的距离的观察者。应保持移动自由在显示方面，分配给每个观察员的信息对于其他用户应保持私有。为了实现这一点，借助于由两个交叉透镜阵列L1和L2组成的聚焦矩阵或者包括以矩阵排列的透镜的二维透镜阵列或双重透镜阵列，可以水平和垂直地限制甜点。镜头阵列所述聚焦矩阵形成包含二维有限的甜点对的甜点矩阵，其包含所有可控观察者位置。这种类型的自动立体显示可以在2D和/或3D模式下使用。

8. 发明授权

US07046272B2 Autostereoscopic display 失效
标题翻译：自动立体显示
公开(公告)号：US07046272B2
公开(公告)日：2006-05-16
申请号：US10491366
申请日：2002-10-02
申请人： Armin Schwerdtner
发明人： Armin Schwerdtner
IPC分类号： H04N7/18
CPC分类号： G02B27/2214 , H04N13/305 , H04N13/31 , H04N13/324 , H04N13/376 , H04N13/398
摘要： An autostereoscopic display has a flat display for representing a left stereo image and a right stereo image. It also has an image separating mask having vertical periodic structures for channeling the left and right stereo images onto a left eye and a right eye of a viewer. A device for horizontally moving the image separating mask in accordance with a position of a viewer is provided. A periodicity interval of the vertical periodic structures of the image separating mask is smaller or identical to two pixels. The device for horizontally moving the image separating mask is carries out a horizontal movement that is smaller or identical to the periodicity interval, wherein upon reaching a limit of the periodicity interval the image separating mask is returned by a length of the periodicity interval.
摘要翻译：自动立体显示器具有用于表示左立体声图像和右立体声图像的平面显示器。它还具有具有垂直周期性结构的图像分离掩模，用于将左立体图像和右立体图像引导到观看者的左眼和右眼。提供了一种用于根据观看者的位置水平移动图像分离掩模的装置。图像分离掩模的垂直周期结构的周期性间隔小于或等于两个像素。用于水平移动图像分离掩模的装置执行与周期性间隔更小或相同的水平移动，其中当达到周期性间隔的限制时，图像分离掩模返回周期性间隔的长度。

9. 发明授权

US10884377B2 Method of computing a hologram for reconstructing an object using a display device 有权
公开(公告)号：US10884377B2
公开(公告)日：2021-01-05
申请号：US15997217
申请日：2018-06-04
申请人： SEEREAL TECHNOLOGIES GmbH
发明人： Armin Schwerdtner
IPC分类号： G03H1/08 , G03H1/16 , G03H1/22
摘要： A method of computing a hologram for reconstructing an object using a display device. The display device enables a holographic reconstruction of the object. The display device includes a light source and an optical system to illuminate a hologram-bearing medium being encodable with the hologram. The method includes the steps of: (a) computing the hologram by determining the wavefronts at an approximate observer eye position that would be generated by a real version of the object to be reconstructed; and (b) encoding the computed hologram in the hologram-bearing medium.

10. 发明授权

US09740167B2 Method of generating a holographic reconstruction of an object using observer tracking 有权
公开(公告)号：US09740167B2
公开(公告)日：2017-08-22
申请号：US14330793
申请日：2014-07-14
申请人： SEEREAL TECHNOLOGIES GMBH
发明人： Norbert Leister , Ralf Haussler , Armin Schwerdtner
IPC分类号： G03H1/08 , G03H1/00 , G03H1/26 , G03H1/32 , G03H1/22 , G03H1/30
CPC分类号： G03H1/0808 , G03H1/0005 , G03H1/22 , G03H1/2294 , G03H1/268 , G03H1/32 , G03H2001/0088 , G03H2001/0816 , G03H2001/0858 , G03H2001/2236 , G03H2001/2242 , G03H2001/2263 , G03H2001/2271 , G03H2001/269 , G03H2001/303 , G03H2210/30 , G03H2210/33 , G03H2210/454 , G03H2222/34 , G03H2223/16 , G03H2225/35 , G03H2226/02 , G03H2226/05
摘要： A method of computing a hologram by determining the wavefronts at the approximate observer eye position that would be generated by a real version of an object to be reconstructed. In normal computer generated holograms, one determines the wavefronts needed to reconstruct an object; this is not done directly in the present invention. Instead, one determines the wavefronts at an observer window that would be generated by a real object located at the same position of the reconstructed object. One can then back-transforms these wavefronts to the hologram to determine how the hologram needs to be encoded to generate these wavefronts. A suitably encoded hologram can then generate a reconstruction of the three-dimensional scene that can be observed by placing one's eyes at the plane of the observer window and looking through the observer window.

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