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公开(公告)号：US20060139711A1
公开(公告)日：2006-06-29
申请号：US11313989
申请日：2005-12-21
IPC分类号： G03H1/08
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.
摘要翻译： 通过确定由将要重建的对象的实际版本产生的近似观察者眼睛位置处的波前来计算全息图的方法。 在正常计算机生成的全息图中，一个确定重建物体所需的波前; 这不是直接在本发明中完成的。 相反，一个确定将由位于重建对象的相同位置处的真实对象生成的观察者窗口处的波前。 然后可以将这些波前反向变换为全息图，以确定如何对全息图进行编码以产生这些波前。 然后，适当地编码的全息图可以生成可以通过将人的眼睛放置在观察者窗口的平面上并通过观察者窗口观察来观察的三维场景的重建。
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22.发明申请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：US20060050340A1
公开(公告)日：2006-03-09
申请号：US11222277
申请日：2005-09-08
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（8 R，8 L）中。 通过像素处的衍射，场景的全息重建（11）从观察窗（8 R，8 L）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。
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23.发明申请公开(公告)号：US20100149313A1
公开(公告)日：2010-06-17
申请号：US12601012
申请日：2008-05-15
CPC分类号： G03H1/2294 , G03H2226/05
摘要： A holographic reconstruction system having spatial light modulators, an eye finder and a position control orients a propagating spatially modulated light wave field toward at least one eye position of an observer's eye, thereby reconstructing a scene in a three-dimensional manner and tracking the same during a position change of the eye position. Through Unobstructed lateral and axial movement of the observer head to arbitrary eye positions in a tracking region is enabled. The use of additional, planar optical components, which bring about optical aberrations during a position change of observer eyes, are prevented.
摘要翻译： 具有空间光调制器，取景器和位置控制的全息重建系统将传播的空间调制的光波场定向到观察者眼睛的至少一个眼睛位置，从而以三维方式重建场景并在三维方式中跟踪它 眼睛位置的位置变化。 通过使观察者头部在跟踪区域中的任意眼睛位置的无阻碍的横向和轴向移动得以实现。 防止在观察者眼睛的位置变化期间引起光学像差的附加的平面光学部件的使用。
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公开(公告)号：US07425069B2
公开(公告)日：2008-09-16
申请号：US10569434
申请日：2004-01-08
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。
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25.发明授权Holographic reconstruction system with an arrangement of controllable microcells 失效全息重建系统具有可控微电池的布置公开(公告)号：US08405891B2
公开(公告)日：2013-03-26
申请号：US12601016
申请日：2008-05-21
申请人： Bo Kroll , Armin Schwerdtner , Gerald Futterer
发明人： Bo Kroll , Armin Schwerdtner , Gerald Futterer
IPC分类号： G03H1/08
CPC分类号： G02B26/005 , G02B26/0808 , G02B27/225 , G03H1/02 , G03H1/2294 , G03H2001/0224 , G03H2001/2242 , G03H2222/34 , G03H2223/18 , G03H2223/19 , G03H2225/55 , G03H2226/05
摘要： A holographic reconstruction system is disclosed for the three-dimensional reconstruction of object light spots of a scene, comprising spatial light modulation elements which modulate interference-capable light waves of illumination means with at least one video hologram, and optical focussing elements which focus the modulated light waves with the reconstructed object light spots for at least one eye position of the observer's eyes. An electro-optical deflection element controlled by a system controller focuses the modulated light wave with the reconstructed object light spots on at least one eye position and tracks them when the eye position changes. The electro-optical deflection element is a controllable optical diffraction grating with a variable surface relief structure consisting of separately controllable microcells.
摘要翻译： 公开了一种全息重建系统，用于场景物体光点的三维重建，包括利用至少一个视频全息图调制照明装置的具有干扰能力的光波的空间光调制元件，以及聚焦调制的光聚焦元件 具有重建物体的光波用于观察者眼睛的至少一个眼睛位置的光斑。 由系统控制器控制的电光偏转元件将被调制的光波与重建的物体光点聚焦在至少一个眼睛位置上，并在眼睛位置改变时跟踪它们。 电光偏转元件是可控的光学衍射光栅，其具有由可分离的可控微电池组成的可变表面浮雕结构。
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公开(公告)号：US08169682B2
公开(公告)日：2012-05-01
申请号：US12598232
申请日：2008-04-29
申请人： Bo Kroll , Armin Schwerdtner , Norbert Leister
发明人： Bo Kroll , Armin Schwerdtner , Norbert Leister
IPC分类号： G02F1/07
CPC分类号： G02F1/133632 , G02F2413/09 , G03H1/02 , G03H1/2294 , G03H2001/0858 , G03H2223/13 , G03H2225/32 , G03H2225/33 , G03H2225/55 , G03H2240/13
摘要： A light modulator is disclosed for representing complex-valued data, comprising an encoding area that has an arrangement of pixels, the phase of which can be controlled. This largely avoids an interfering optical path difference between adjacent pixels or pixel groups when a complex value is encoded in several adjacent phase pixels of the encoding area, the optical path difference varying according to the angle. One respective specific structured delaying layer, which causes the optical path of an incident linearly polarized beam to change according to the angle, is associated with at least one predefined pixel of a group of adjacent pixels of the encoding area. The thickness of the delaying layer is designed such that the modification of the optical path caused by the delaying layer runs in the opposite direction from the angle-related modification of the optical path difference between individual pixels of the pixel group.
摘要翻译： 公开了一种用于表示复值数据的光调制器，其包括具有可以控制其相位的像素排列的编码区域。 当复数值被编码在编码区域的几个相邻相位像素中时，这大大地避免了相邻像素或像素组之间的干涉光程差，光程差根据角度而变化。 导致入射线偏振光束的光路根据角度改变的一个相应的特定结构延迟层与编码区域的一组相邻像素的至少一个预定义像素相关联。 延迟层的厚度被设计成使得由延迟层引起的光路的修改在与像素组的各个像素之间的光程差的角度相关的修改方向相反的方向上延伸。
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27.发明授权公开(公告)号：US08379079B2
公开(公告)日：2013-02-19
申请号：US12601012
申请日：2008-05-15
IPC分类号： G03H1/08
CPC分类号： G03H1/2294 , G03H2226/05
摘要： A holographic reconstruction system having spatial light modulators, an eye finder and a position control orients a propagating spatially modulated light wave field toward at least one eye position of an observer's eye, thereby reconstructing a scene in a three-dimensional manner and tracking the same during a position change of the eye position. Unobstructed lateral and axial movement of the observer head to arbitrary eye positions in a tracking region is enabled. The use of additional, planar optical components, which bring about optical aberrations during a position change of observer eyes, are prevented.
摘要翻译： 具有空间光调制器，取景器和位置控制的全息重建系统将传播的空间调制的光波场定向到观察者眼睛的至少一个眼睛位置，从而以三维方式重建场景并在三维方式中跟踪它 眼睛位置的位置变化。 观察者头部在跟踪区域中的任意眼睛位置的横向和轴向移动是无阻碍的。 防止在观察者眼睛的位置变化期间引起光学像差的附加的平面光学部件的使用。
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公开(公告)号：US08243355B2
公开(公告)日：2012-08-14
申请号：US12738668
申请日：2008-10-16
申请人： Bo Kroll , Armin Schwerdtner , Gerald Futterer
发明人： Bo Kroll , Armin Schwerdtner , Gerald Futterer
CPC分类号： G02B26/06 , G02B26/004 , G02B26/005 , G02B27/2242
摘要： An optical unit for dynamically shaping a wavefront is disclosed, having light modulation cells disposed regularly in cell fields, and locally influencing partial light waves in a propagating light wavefront. Each cell field is connected to a cell controller separately adjusting the optical behavior of the light modulator cells. Serially-disposed fields, each having modulator cells, are located in the light path of the light wavefront. Cell control means adjust the modulator cells in a first cell field such that the modulator cells discretely implement a phase shift having a continuous phase value, and in a second cell field such that the modulator cells implement a prism function having a continuous directional value for the partial light waves. A focusing means for the emitted wavefront is also located in the light path of the optical unit, guiding the partial light waves at an output pupil of the optical unit.
摘要翻译： 公开了一种用于动态整形波前的光学单元，其具有在单元格场中规则地设置的光调制单元，并且局部地影响传播光波前的部分光波。 每个单元电场分别连接到单元控制器，调节光调制器单元的光学行为。 每个具有调制器单元的串联场均位于光波前的光路中。 单元控制装置调整第一单元区域中的调制器单元，使得调制器单元离散地实现具有连续相位值的相移，并且在第二单元区域中，使得调制器单元实现具有连续方向值的棱镜函数， 部分光波。 用于发射波前的聚焦装置也位于光学单元的光路中，引导光学单元的输出光瞳处的部分光波。
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公开(公告)号：US20100214634A1
公开(公告)日：2010-08-26
申请号：US12601014
申请日：2008-05-21
IPC分类号： G03H1/22
CPC分类号： G03H1/02 , G02B5/045 , G02B5/06 , G02B26/005 , G03H1/2205 , G03H1/2294 , G03H2001/0216 , G03H2223/18 , G03H2223/19 , G03H2225/55
摘要： A holographic reconstruction system is disclosed with spatial light modulation means, modulating interferable light waves from light sources with at least one video hologram, comprising optical focusing means, focusing the modulated light waves with the reconstructed object light points for at least one eye position for the eyes of observers and controllable electro-optical deflector means, which direct the focused modulated light waves with the reconstructed light points to at least one eye position in order to reduce the aberrations. The reconstruction system has the optical focusing means in a field of focusing elements, wherein each focusing element is provided with at least one interferable light source. The electro-optical deflector means lie in the light path of the interferable light waves after the optical focusing mean and have at least one field of deflector elements, which has at least one separately controllable electro-optical deflector element for each focusing element.
摘要翻译： 公开了一种具有空间光调制装置的全息重建系统，其调制来自具有至少一个视频全息图的光源的可干涉光波，包括光学聚焦装置，将经调制的光波与被重建的物体光点聚焦至少一个眼睛位置， 观察者的眼睛和可控的电光偏转器装置，其将聚焦的调制光波以重建的光点引导至至少一个眼睛位置，以减少像差。 重建系统在聚焦元件的领域中具有光学聚焦装置，其中每个聚焦元件设置有至少一个可干涉光源。 电光偏转器装置位于光聚焦装置之后的可干涉光波的光路中，并且具有至少一个偏转元件场，其具有用于每个聚焦元件的至少一个单独可控的电光偏转元件。
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公开(公告)号：US08294966B2
公开(公告)日：2012-10-23
申请号：US12525426
申请日：2008-01-29
CPC分类号： G03H1/2294 , G03H1/2205 , G03H2001/2242 , G03H2001/2292 , G03H2226/05
摘要： A holographic projection system has an optical wave tracking system which adjusts the propagation direction of a modulated wavefront. It provides an adjustable wave tracking system which aligns the modulated wave with a desired eye position of one or more observers and follows the movements of the observer. The system comprises spatial light modulation means which modulate a wave with holographic information for the purpose of holographic reconstruction. The optical wave tracking provides the light path of the modulated wave with a desired propagation direction which guides the modulated wave out of the reconstruction system via a light exit position of a display screen. Position control means set adjustable tracking mirror means in terms of their inclination to a reflection direction for reflecting the modulated wave and deflection means, which are located in the set reflection direction, reflect the wave via the display screen into the desired propagation direction.
摘要翻译： 全息投影系统具有调整调制波前的传播方向的光波跟踪系统。 它提供了一种可调节的波跟踪系统，其将调制波与一个或多个观察者的期望的眼睛位置对准，并且遵循观察者的运动。 该系统包括空间光调制装置，其用于以全息重建的方式调制具有全息信息的波。 光波跟踪提供具有期望传播方向的调制波的光路，该传播方向通过显示屏的光出射位置将调制波引导出重构系统。 位置控制装置根据其与反射方向的倾斜度设置可调节跟踪反射镜装置，以反射位于设定反射方向的调制波和偏转装置，通过显示屏将波反射到期望的传播方向。
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