公开(公告)号：US20160313695A1

公开(公告)日：2016-10-27

申请号：US15191596

申请日：2016-06-24

Applicant: SEEREAL TECHNOLOGIES S.A.

Inventor： Gerald FUTTERER

IPC: G03H1/02 ,  G02F1/1334 ,  F21V8/00 ,  G03H1/22 ,  G02B5/32 ,  G02B27/00

CPC classification number: G03H1/0248 ,  G02B5/32 ,  G02B6/0046 ,  G02B27/0037 ,  G02F1/13342 ,  G02F1/133524 ,  G02F1/133621 ,  G02F1/136277 ,  G02F2201/02 ,  G03H1/0891 ,  G03H1/2205 ,  G03H1/2286 ,  G03H1/2294 ,  G03H1/30 ,  G03H2001/0224 ,  G03H2001/2236 ,  G03H2001/2239 ,  G03H2001/2242 ,  G03H2001/2292 ,  G03H2222/12 ,  G03H2222/22 ,  G03H2222/34 ,  G03H2223/12 ,  G03H2223/14 ,  G03H2223/16 ,  G03H2223/19 ,  G03H2223/22 ,  G03H2223/23 ,  G03H2225/11 ,  G03H2227/03

Abstract: A holographic display with an illumination device, an enlarging unit and a light modulator. The illumination device includes at least one light source and a light collimation unit, the light collimation unit collimates the light of the at least one light source and generates a light wave field of the light that is emitted by the light source with a specifiable angular spectrum of plane waves, the enlarging unit is disposed downstream of the light collimation unit, seen in the direction of light propagation, where the enlarging unit includes a transmissive volume hologram realising an anamorphic broadening of the light wave field due to a transmissive interaction of the light wave field with the volume hologram, and the light modulator is disposed upstream or downstream of the anamorphic enlarging unit, seen in the direction of light propagation.

Abstract translation: 具有照明装置，放大单元和光调制器的全息显示器。 所述照明装置包括至少一个光源和光准直单元，所述光准直单元准直所述至少一个光源的光，并且产生由所述光源发射的具有可指定角频谱的光的光波场 的平面波，放大单元设置在光准直单元的下游，在光传播的方向上看，放大单元包括透射体全息图，其实现由于光的透射相互作用而导致的光波场的变形扩展 具有体积全息图的波场，并且光调制器设置在变形扩大单元的上游或下游，从光传播的方向看。

公开(公告)号：US20160313556A1

公开(公告)日：2016-10-27

申请号：US15199652

申请日：2016-06-30

Applicant: SEEREAL TECHNOLOGIES S.A.

Inventor： Gerald FUTTERER

IPC: G02B27/01 ,  G03H1/26 ,  G02B27/22 ,  G02B27/00 ,  G06T15/50 ,  G02B27/58 ,  G02F1/29 ,  G02B5/32 ,  F21V8/00 ,  H04N13/04 ,  G03H1/22 ,  G02B26/12

Abstract: The invention relates to a display device, in particular a head-mounted display or hocular, having a spatial light modulator and a controllable light-deflecting device for generating a multiple image of the spatial light modulator, which consists of segments, the multiple image being produced at least with a predefinable number of segments which determines the size of a visible area within which a 3D-scene holographically encoded in the spatial light modulator can be reconstructed for observation by an eye of an observer.

公开(公告)号：US09041989B2

公开(公告)日：2015-05-26

申请号：US14212706

申请日：2014-03-14

Applicant: SEEREAL TECHNOLOGIES S.A.

Inventor： Norbert Leister ,  Stephan Reichelt

IPC: G02B5/32 ,  G03H1/08 ,  G03H1/22

CPC classification number: G03H1/0808 ,  G03H1/2286 ,  G03H1/2294 ,  G03H2001/0224 ,  G03H2001/0816 ,  G03H2001/2242 ,  G03H2001/2271 ,  G03H2222/18 ,  G03H2222/35 ,  G03H2223/12 ,  G03H2225/55

Abstract: The invention relates to apodization in a holographic direct view display. Known apodization functions are utilized/modified for an apodization mask such that the functions reduce the intensities of selected higher magnitudes of diffractions. The holographic direct view display comprises a controllable light modulator having modulator cells and modulating impinging coherent light into a phase and/or amplitude, and an array of apodization masks. The apodization masks have the same apodization function for a predetermined group of modulator cells, by means of which function a complex amplitude transparency can be set for the modulator cells. This transparency corresponds to an individually predefined course of intensity in a far field of the light modulator, wherein the predefined course of intensity includes a reducing of the light intensity of higher magnitudes of diffractions, and/or of the interfering light emitted by the light modulator.

Abstract translation: 本发明涉及全息直视图显示中的变迹。 对于变迹掩模使用/修改已知的变迹函数，使得函数降低所选择的更高的衍射幅度的强度。 全息直视图显示器包括具有调制器单元并将入射相干光调制成相位和/或幅度的可控光调制器以及变迹掩模阵列。 变迹掩模对于预定的一组调制器单元具有相同的变迹功能，通过该调制器单元，功能可以为调制器单元设置复振幅透明度。 该透明度对应于光调制器的远场中的单独预定的强度过程，其中预定的强度过程包括降低较高的衍射幅度和/或由光调制器发射的干涉光的光强度 。

公开(公告)号：US20140376207A1

公开(公告)日：2014-12-25

申请号：US14371769

申请日：2013-01-11

Applicant: SEEREAL TECHNOLOGIES S.A.

Inventor： Gerald Futterer

IPC: F21V8/00 ,  G03H1/04 ,  G02B27/22

CPC classification number: G02B6/0035 ,  G02B5/32 ,  G02B6/003 ,  G02B6/0031 ,  G02B6/0061 ,  G02B27/22 ,  G03H1/0408 ,  G03H1/2286 ,  G03H1/2294 ,  G03H2001/0439 ,  G03H2223/16

Abstract: The invention relates to optical device for illuminating a pixel matrix and/or a controllable spatial light modulator for a display, in particular a stereoscopic or holographic 3D display, wherein the optical device comprises a layer formed as a light waveguide, in which illumination light is guided in a light guiding layer, in particular according to the principle of total internal reflection, between two reflection layers lying opposite one another, wherein an extraction means for extracting illumination light from the light guiding layer is provided. The optical device is characterized in that the extraction means has different properties, in particular different optical properties, at a first extraction position than at another extraction position different to the first extraction position.

Abstract translation: 本发明涉及用于照明用于显示器，特别是立体或全息3D显示器的像素矩阵和/或可控空间光调制器的光学装置，其中光学装置包括形成为光波导的层，其中照明光为 在导光层之间引导，特别是根据全内反射的原理，在彼此相对的两个反射层之间，提供用于从导光层提取照明光的提取装置。 光学装置的特征在于，提取装置在第一提取位置处具有与在与第一提取位置不同的另一提取位置处具有不同的特性，特别是不同的光学性质。

公开(公告)号：US20140361990A1

公开(公告)日：2014-12-11

申请号：US14373942

申请日：2013-01-25

Applicant: SEEREAL TECHNOLOGIES S.A.

Inventor： Norbert Leister

IPC: G06F3/01

CPC classification number: G02B27/0093 ,  G02B5/201 ,  G02B5/32 ,  G02B27/225 ,  G02B27/26 ,  G02F1/0136 ,  G02F1/1323 ,  G02F1/133753 ,  G02F1/292 ,  G02F2001/133631 ,  G02F2001/133638 ,  G02F2001/133757 ,  G02F2001/291 ,  G02F2201/305 ,  G02F2203/07 ,  G02F2203/24 ,  G03H1/2286 ,  G03H1/2294 ,  G03H2001/0216 ,  G03H2001/221 ,  G03H2001/2236 ,  G03H2001/2242 ,  G03H2001/2292 ,  G03H2222/34 ,  G03H2222/36 ,  G03H2223/19 ,  G03H2223/20 ,  G03H2223/22 ,  G03H2223/23 ,  G03H2226/05 ,  G06F3/013 ,  H04N13/315 ,  H04N13/32 ,  H04N13/366 ,  H04N13/368 ,  H04N13/383 ,  H04N13/398

Abstract: The invention relates to a display, in particular an autostereoscopic or holographic display, for representing preferably three-dimensional information, wherein the stereo views or the reconstructions of the holographically encoded objects can be tracked to the movements of the associated eyes of one or more observers in a finely stepped manner within a plurality of zones of the movement region. In this case, the zones are selected by the activation of switchable polarization gratings.

Abstract translation: 本发明涉及用于表示优选三维信息的显示器，特别是自动立体显示器或全息显示器，其中立体视图或全息编码物体的重建可被跟踪到一个或多个观察者的相关眼睛的运动 在移动区域的多个区域内以微细的方式。 在这种情况下，通过激活可切换偏振光栅来选择区域。

公开(公告)号：US20140327612A1

公开(公告)日：2014-11-06

申请号：US14361743

申请日：2012-12-03

Applicant: SEEREAL TECHNOLOGIES S.A.

Inventor： Gerald Futterer

IPC: G06F3/01

CPC classification number: G06F3/013 ,  G01S5/16 ,  G02B27/0093 ,  G02B27/225 ,  H04N13/366

Abstract: The present invention relates to a measurement method in which, by predetermined illumination by means of a display device, in particular a holographic or autostereoscopic display device, with an intensity distribution of the illumination light in a plane of a light source image, a first location of an object, in particular an observer of the display device, is marked, and wherein the relative position of the first location in relation to a second location of the object is determined in a coordinate system of a camera.

Abstract translation: 本发明涉及一种测量方法，其中借助于通过显示装置，特别是具有照明光在光源图像的平面中的强度分布的全息或自动立体显示装置的预定照明，第一位置 对象物，特别是显示装置的观察者进行标记，并且其中在相机的坐标系中确定第一位置相对于物体的第二位置的相对位置。

公开(公告)号：US11635731B2

公开(公告)日：2023-04-25

申请号：US16451437

申请日：2019-06-25

Applicant: SEEREAL TECHNOLOGIES S.A.

Inventor： Enrico Zschau

IPC: G03H1/08 ,  G03H1/22 ,  G03H1/26

Abstract: An apparatus and a method for optimized calculation of 2D sub-holograms for object points of a three-dimensional scene and a pipeline for real-time calculation of holograms are provided. The invention shortens the calculation time of a hologram for representing a three-dimensional scene and/or to reduce the calculation complexity of such a hologram. This is achieved by a 2D sub-hologram of an object point, which has image elements of the spatial light modulator, comprises a half 1D sub-hologram, where the radius of each image element is determined and each image element of the 2D sub-hologram is fixedly assigned to at least one image element of the half 1D sub-hologram with identical or similar radius by way of an electronic circuit, by a method for encoding a hologram, and by a pipeline on the basis of FPGA and/or ASIC.

公开(公告)号：US20230024541A1

公开(公告)日：2023-01-26

申请号：US17787495

申请日：2020-12-17

Applicant: SEEREAL TECHNOLOGIES S.A.

Inventor： Norbert LEISTER ,  Bo KROLL

IPC: G02F1/1347 ,  G02F1/1335 ,  G02F1/13363

Abstract: The invention relates to a light modulation device having pixels. Essentially, the one half of the pixels are reflective and the other half of the pixels are transmissive. The reflective pixels are arranged in alternation with the transmissive pixels in the same substrate plane. The light modulation device also has a backplane, which has transistors and data lines for conducting signals to the pixels. Each pixel is assigned at least one transistor and at least two data lines. The transistors and the data lines of each adjacent pair of a reflective pixel and a transmissive pixel are arranged under the reflective pixel.

公开(公告)号：US11506828B2

公开(公告)日：2022-11-22

申请号：US17271080

申请日：2019-08-14

Applicant: SEEREAL TECHNOLOGIES S.A.

Inventor： Ralf Häussler

IPC: F21V8/00 ,  G02B27/10

Abstract: The invention relates to a light guiding device for guiding light. The light guiding device comprises at least one light guide, at least one beam splitter element, and at least one light decoupling device. The at least one light guide comprises at least two layers. The at least one beam splitter element is provided between the at least two layers of the at least one light guide, where the at least one beam splitter element is designed for partially transmitting and reflecting incident light propagating in the at least one light guide. The at least one light decoupling device is provided for coupling incident light out of the at least one light guide. Furthermore, the invention also relates to an illumination device and a display device for displaying two-dimensional and/or three-dimensional information comprising such a light guiding device.

公开(公告)号：US11460809B2

公开(公告)日：2022-10-04

申请号：US15563016

申请日：2016-03-29

Applicant: SEEREAL TECHNOLOGIES S.A.

Inventor： Bo Kroll ,  Norbert Leister

IPC: G03H1/26 ,  G03H1/08

Abstract: The invention relates to methods for computing holograms for holographic reconstruction of two-dimensional and/or three-dimensional scenes in a display apparatus, wherein a scene for reconstruction is broken down into object points and the object points are encoded as sub-holograms into at least one spatial light modulation device of the display apparatus. A reconstructed scene is viewed from a region of visibility. At least one virtual plane of the at least one spatial light modulation device is stipulated on the basis of a real plane of the spatial light modulation device. A computation of sub-holograms is performed in the at least one virtual plane of the at least one spatial light modulation device.