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公开(公告)号：US20130250049A1
公开(公告)日：2013-09-26
申请号：US13887755
申请日：2013-05-06
Applicant: SEEREAL TECHNOLOGIES S.A.
Inventor： Alexander SCHWERDTNER
IPC: G03H1/08
CPC classification number: G03H1/08 , G03H1/0808 , G03H1/22 , G03H1/2294 , G03H2001/0833 , G03H2210/452
Abstract: An analytical method for computing a video hologram for a holographic reproduction device having at least one light modulation means is disclosed, wherein a scene split into object points is encoded as a whole hologram and can be seen as a reconstruction from a visibility region, located within a periodicity interval of the reconstruction. The visibility region, together with each object point of the scene to be reconstructed, defines a subhologram and the whole hologram is generated from a superposition of subholograms, wherein the complex hologram values of a subhologram are determined from the wave front of the respective object point to be reconstructed in a modulator region of the light modulation means, by calculating and evaluating the transmission or modulation functions of an imaging element formed in the modulator region. The object point to be reconstructed is located in the focal point of the imaging element.
Abstract translation: 公开了一种用于计算具有至少一个光调制装置的全息再现装置的视频全息图的分析方法，其中分割成对象点的场景被编码为整个全息图，并且可以被看作是位于内部的可视区域的重建 重建的周期性间隔。 可见度区域与要重建的场景的每个对象点一起定义了一个亚全息图，并且整个全息图是从亚像线叠加产生的，其中从相应对象点的波前确定亚全息图的复数全息图值 通过计算和评估在调制器区域中形成的成像元件的透射或调制功能，在光调制装置的调制器区域中重构。 要重建的对象点位于成像元件的焦点处。
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公开(公告)号：US20180217554A1
公开(公告)日：2018-08-02
申请号：US15928891
申请日：2018-03-22
Applicant: SEEREAL TECHNOLOGIES S.A.
Inventor： Bo KROLL , Robert MISSBACH , Alexander SCHWERDTNER
Abstract: Disclosed is a holographic display including a spatial light modulator (SLM) with pixels, the SLM pixels being on a substrate, the SLM including circuitry which is on the same substrate as the SLM pixels, the circuitry operable to perform calculations which provide an encoding of the SLM.
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Patent Agency Ranking
3.发明申请公开(公告)号：US20180259905A1
公开(公告)日：2018-09-13
申请号：US15978916
申请日：2018-05-14
Applicant: SEEREAL TECHNOLOGIES S.A.
Inventor： Enrico ZSCHAU , Armin SCHWERDTNER , Bo KROLL , Alexander SCHWERDTNER
CPC classification number: G03H1/2294 , G03H1/0808 , G03H2001/0833 , G03H2210/30 , G03H2210/452 , G03H2226/05
Abstract: A method for generating video holograms in real time for a holographic playback device comprising at least one light modulator means, into which a scene divided into object points is encoded as an entire hologram and can be seen as a reconstruction from a visibility region, which is located within a periodicity interval of the reconstruction of the video hologram, the visibility region defining a subhologram together with each object point of the scene to be reconstructed, and the entire hologram being generated from a superposition of contributions of subholograms, is characterized in that for each object point the contributions of the subholograms in the entire reconstruction of the scene can be determined from at least one look-up table.
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公开(公告)号：US20230025687A1
公开(公告)日：2023-01-26
申请号：US17957118
申请日：2022-09-30
Applicant: SEEREAL TECHNOLOGIES S.A.
Inventor： Enrico ZSCHAU , Armin SCHWERDTNER , Bo KROLL , Alexander SCHWERDTNER
Abstract: A method for generating video holograms in real time for a holographic playback device comprising at least one light modulator means, into which a scene divided into object points is encoded as an entire hologram and can be seen as a reconstruction from a visibility region, which is located within a periodicity interval of the reconstruction of the video hologram, the visibility region defining a subhologram together with each object point of the scene to be reconstructed, and the entire hologram being generated from a superposition of contributions of subholograms, is characterized in that for each object point the contributions of the subholograms in the entire reconstruction of the scene can be determined from at least one look-up table.
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公开(公告)号：US20160291544A1
公开(公告)日：2016-10-06
申请号：US15148142
申请日：2016-05-06
Applicant: SEEREAL TECHNOLOGIES S.A.
Inventor： Bo KROLL , Robert MISSBACH , Alexander SCHWERDTNER
CPC classification number: G03H1/0443 , G02B26/0875 , G03H1/0005 , G03H1/02 , G03H1/08 , G03H1/0808 , G03H1/2205 , G03H1/2294 , G03H1/268 , G03H1/32 , G03H2001/0088 , G03H2001/0216 , G03H2001/0224 , G03H2001/0833 , G03H2001/2242 , G03H2001/2271 , G03H2001/2625 , G03H2210/30 , G03H2210/36 , G03H2210/44 , G03H2222/20 , G03H2222/22 , G03H2222/24 , G03H2223/18 , G03H2223/19 , G03H2225/22 , G03H2225/55 , G03H2226/02 , G03H2226/04 , G03H2226/05 , G06F3/013 , G09G3/20 , G09G2300/026 , G09G2300/0408 , G09G2300/0809
Abstract: Disclosed is a holographic display including a spatial light modulator (SLM) with pixels, the SLM pixels being on a substrate, the SLM including circuitry which is on the same substrate as the SLM pixels, the circuitry operable to perform calculations which provide an encoding of the SLM.
Abstract translation: 公开了一种全息显示器，其包括具有像素的空间光调制器（SLM），所述SLM像素位于衬底上，所述SLM包括与所述SLM像素在同一衬底上的电路，所述电路可操作以执行提供编码的 SLM。
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6.发明申请公开(公告)号：US20200301362A1
公开(公告)日：2020-09-24
申请号：US16895108
申请日：2020-06-08
Applicant: SEEREAL TECHNOLOGIES S.A.
Inventor： Enrico ZSCHAU , Armin SCHWERDTNER , Bo KROLL , Alexander SCHWERDTNER
Abstract: A method for generating video holograms in real time for a holographic playback device comprising at least one light modulator means, into which a scene divided into object points is encoded as an entire hologram and can be seen as a reconstruction from a visibility region, which is located within a periodicity interval of the reconstruction of the video hologram, the visibility region defining a subhologram together with each object point of the scene to be reconstructed, and the entire hologram being generated from a superposition of contributions of subholograms, is characterized in that for each object point the contributions of the subholograms in the entire reconstruction of the scene can be determined from at least one look-up table.
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公开(公告)号：US20170153600A1
公开(公告)日：2017-06-01
申请号：US15429465
申请日：2017-02-10
Applicant: SEEREAL TECHNOLOGIES S.A.
Inventor： Alexander SCHWERDTNER
CPC classification number: G03H1/08 , G02B27/0093 , G03H1/0808 , G03H1/0841 , G03H1/22 , G03H1/2294 , G03H1/28 , G03H2001/0833 , G03H2210/452 , G03H2225/33 , G03H2226/02
Abstract: A holographic display device for computing a video hologram of a scene is disclosed. The scene comprises a multitude of object points. The holographic display device comprises at least one light modulator means. Said holographic display device is configured to perform the steps of (a) defining a visibility region within a periodicity interval of the video hologram of the scene to be reconstructed; (b) for each object point, defining a modulator region by the defined visibility region together with each object point of the scene to be reconstructed, where a sub-hologram of an object point of the scene to be reconstructed is computed for each modulator region, and where an entire video hologram is created by superposition of said sub-holograms; (c) determining complex hologram values of a sub-hologram in a modulator region from a wave front of an object point to be reconstructed by computing modulation functions of an imaging element which is modeled in the respective modulator region of said holographic display device, and in whose focal point the object point to be reconstructed lies, where the sub-hologram of said object point is computed using the modulation functions, and (d) encoding the video hologram of the scene into the screen means.
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