利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

114 条记录 (耗时 0.026 秒)

    Analytic method for computing video holograms in real time
    2.
    发明授权
    Analytic method for computing video holograms in real time 有权

    公开(公告)号：US09829860B2

    公开(公告)日：2017-11-28

    申请号：US15429465

    申请日：2017-02-10

    申请人： SEEREAL TECHNOLOGIES S.A.

    发明人： Alexander Schwerdtner

    IPC分类号： G03H1/08 ,  G03H1/28 ,  G03H1/22

    CPC分类号： G03H1/08 ,  G02B27/0093 ,  G03H1/0808 ,  G03H1/0841 ,  G03H1/22 ,  G03H1/2294 ,  G03H1/28 ,  G03H2001/0833 ,  G03H2210/452 ,  G03H2225/33 ,  G03H2226/02

    摘要： 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.

    ANALYTIC METHOD FOR COMPUTING VIDEO HOLOGRAMS IN REAL TIME
    3.
    发明申请
    ANALYTIC METHOD FOR COMPUTING VIDEO HOLOGRAMS IN REAL TIME 有权

    公开(公告)号：US20170153600A1

    公开(公告)日：2017-06-01

    申请号：US15429465

    申请日：2017-02-10

    申请人： SEEREAL TECHNOLOGIES S.A.

    发明人： Alexander SCHWERDTNER

    IPC分类号： G03H1/08 ,  G03H1/22 ,  G03H1/28

    CPC分类号： G03H1/08 ,  G02B27/0093 ,  G03H1/0808 ,  G03H1/0841 ,  G03H1/22 ,  G03H1/2294 ,  G03H1/28 ,  G03H2001/0833 ,  G03H2210/452 ,  G03H2225/33 ,  G03H2226/02

    摘要： 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.

    Dynamically reconfigurable holograms for generating color holographic images
    5.
    发明授权
    Dynamically reconfigurable holograms for generating color holographic images 有权
    用于产生彩色全息图像的动态可重构全息图

    公开(公告)号：US08797382B2

    公开(公告)日：2014-08-05

    申请号：US13264073

    申请日：2009-04-13

    申请人： Jingjing Li ,  Philip J. Kuekes

    发明人： Jingjing Li ,  Philip J. Kuekes

    IPC分类号： G02F1/1335 ,  G03H1/14 ,  H04N15/00

    CPC分类号： G03H1/02 ,  G03H1/2294 ,  G03H2001/0224 ,  G03H2001/2271 ,  G03H2222/18 ,  G03H2225/22 ,  G03H2225/32 ,  G03H2225/33

    摘要： Various embodiments of the present invention are directed to negative refractive index-based holograms that can be electronically controlled and dynamically reconfigured to generate one or more color three-dimensional holographic images. In one aspect, a hologram comprises a phase-control layer having a plurality of phase modulation elements. The phase-modulation elements are configured with a negative effective refractive index and selectively transmit wavelengths associated with one of three primary color wavelength. The hologram also includes an intensity-control layer including a plurality of intensity-control elements. One or more color three-dimensional images can be produced by electronically addressing the phase-modulation elements and intensity-control elements in order to phase shift and control the intensity of light transmitted through the hologram. A method for generating a color holographic image using the hologram is also provided, as is a system for generating a color holographic image.

    摘要翻译： 本发明的各种实施例涉及基于负折射率的全息图，其可以被电子控制和动态地重新配置以产生一个或多个彩色三维全息图像。 一方面，全息图包括具有多个相位调制元件的相位控制层。 相位调制元件被配置为具有负的有效折射率并选择性地传输与三原色波长之一相关联的波长。 全息图还包括包括多个强度控制元件的强度控制层。 可以通过电子寻址相位调制元件和强度控制元件来产生一个或多个彩色三维图像，以便相移和控制透射通过全息图的光的强度。 还提供了使用全息图产生彩色全息图像的方法，以及用于产生彩色全息图像的系统。

    COMPLEX SPATIAL LIGHT MODULATOR AND HOLOGRAPHIC 3D IMAGE DISPLAY DEVICE HAVING THE SAME
    6.
    发明申请
    COMPLEX SPATIAL LIGHT MODULATOR AND HOLOGRAPHIC 3D IMAGE DISPLAY DEVICE HAVING THE SAME 有权
    具有复合空间光调制器和全息三维图像显示装置

    公开(公告)号：US20130321888A1

    公开(公告)日：2013-12-05

    申请号：US13725099

    申请日：2012-12-21

    申请人： SAMSUNG ELECTRONICS CO., LTD.

    发明人： Gee-young SUNG ,  Hoon SONG ,  Kang-hee WON ,  Kyu-hwan CHOI

    IPC分类号： G02F1/19 ,  G03H1/22 ,  G02F1/01

    CPC分类号： G02F1/19 ,  G02F1/0136 ,  G02F2001/133631 ,  G03H1/02 ,  G03H1/2286 ,  G03H1/2294 ,  G03H2001/0224 ,  G03H2001/0858 ,  G03H2222/31 ,  G03H2223/18 ,  G03H2223/19 ,  G03H2225/33 ,  G03H2225/55

    摘要： A complex spatial light modulator includes a polarization-phase modulator for separating an incident beam into a first beam having a first polarization and a first phase, and a second beam having a second polarization and a second phase, and for outputting the first beam and the second beam; and a beam synthesizer including a prism structure formed of an optical anisotropic material having a first refractive index with respect to the first beam having the first polarization and having a second refractive index, different form the first refractive index, with respect to the second beam having the second polarization, where the beam synthesizer combines the first beam and the second beam.

    摘要翻译： 复杂的空间光调制器包括：偏振相位调制器，用于将入射光束分离成具有第一偏振光和第一相位的第一光束;以及具有第二偏振光和第二相位的第二光束，并且用于输出第一光束和 第二束 以及光束合成器，其包括由相对于具有第一偏振的第一光束具有第一折射率的光学各向异性材料形成的棱镜结构，并且具有与第一折射率不同的第二折射率相对于具有第一折射率的第二光束， 第二极化，其中光束合成器组合第一光束和第二光束。

    Holographic projection device for the enlargement of a reconstruction volume
    8.
    发明授权
    Holographic projection device for the enlargement of a reconstruction volume 有权
    全息投影装置用于扩大重建体积

    公开(公告)号：US08335028B2

    公开(公告)日：2012-12-18

    申请号：US12161587

    申请日：2007-01-15

    申请人： Philippe Renaud-Goud

    发明人： Philippe Renaud-Goud

    IPC分类号： G03H1/08 ,  G03H1/22

    CPC分类号： G03H1/2205 ,  G02B27/0093 ,  G03H1/02 ,  G03H1/2294 ,  G03H2001/0224 ,  G03H2001/221 ,  G03H2001/2218 ,  G03H2001/2239 ,  G03H2001/2242 ,  G03H2001/2271 ,  G03H2001/2292 ,  G03H2210/20 ,  G03H2210/30 ,  G03H2222/22 ,  G03H2222/24 ,  G03H2225/11 ,  G03H2225/24 ,  G03H2225/33 ,  G03H2226/05

    摘要： This invention relates to a holographic projection device with an array of mirror elements in the form of micro-mirrors. The holographic projection device comprises at least one light modulator device, which contains the array of mirror elements, for an enlargement of a reconstruction space for a reconstructed scene. Each mirror element is coupled with at least one actuator. The actuators tilt the corresponding mirror elements and/or displace them axially in at least one direction. Thereby, a wave front for the representation of a reconstructed scene is directly modulated. The holographic projection device comprises an optical system for the projection of the modulated wave front into at least one observer window in an observer plane.

    摘要翻译： 本发明涉及具有微镜形式的镜元件阵列的全息投影装置。 全息投影装置包括至少一个光调制器装置，其包含反射镜元件阵列，用于放大重建场景的重建空间。 每个镜元件与至少一个致动器相连。 致动器倾斜相应的镜元件和/或在至少一个方向轴向移动它们。 由此，直接调制用于表示重构场景的波前。 全息投影装置包括用于将调制波前投影到观察平面中的至少一个观察窗中的光学系统。

    LIGHTING DEVICE FOR A DIRECT VIEWING DISPLAY
    9.
    发明申请
    LIGHTING DEVICE FOR A DIRECT VIEWING DISPLAY 有权
    用于直接观看显示的照明设备

    公开(公告)号：US20120092750A1

    公开(公告)日：2012-04-19

    申请号：US13380169

    申请日：2010-06-18

    申请人： Bo Kroll ,  Gerald Futterer ,  Ralf Haussler ,  Norbert Leister ,  Steffen Buschbeck

    发明人： Bo Kroll ,  Gerald Futterer ,  Ralf Haussler ,  Norbert Leister ,  Steffen Buschbeck

    IPC分类号： G02B26/00 ,  F21V9/14 ,  G02B6/00

    CPC分类号： G02B6/0046 ,  G02B6/0036 ,  G02B6/0056 ,  G02B26/005 ,  G03H1/02 ,  G03H1/2286 ,  G03H1/2294 ,  G03H2001/0224 ,  G03H2001/0858 ,  G03H2223/16 ,  G03H2225/22 ,  G03H2225/24 ,  G03H2225/33

    摘要： The present invention relates to a lighting device having a planer optical fiber and at least one light source device for illuminating a controllable spatial light modulator, wherein the optical fiber comprises a light-conducting core and a cover coating, and the light modulator comprises a pixel matrix, the light source device is disposed on the side of the optical fiber, and the light emitted by at least one light source of the light source device propagates laminarly in the optical fiber. The lighting unit according to the invention is characterized in that the planar optical fiber comprises a deflecting coating having a selective polarization function for laminarly decoupling and deflecting the evanescent wave field of the light propagating in the optical fiber, wherein the thickness of the cover coating reduces in the direction of light propagation.

    摘要翻译： 本发明涉及具有平面光纤的照明装置和用于照亮可控空间光调制器的至少一个光源装置，其中光纤包括导光芯和覆盖层，并且光调制器包括像素 矩阵，光源装置设置在光纤的一侧，由光源装置的至少一个光源发射的光在光纤中层叠地传播。 根据本发明的照明单元的特征在于，平面光纤包括具有选择性偏振功能的偏转涂层，用于层叠地去耦和偏转在光纤中传播的光的ev逝波场，其中覆盖层的厚度减小 在光传播的方向。

    Hologram recording/reproducing apparatus
    10.
    发明授权
    Hologram recording/reproducing apparatus 有权
    全息记录/再现装置

    公开(公告)号：US08064115B2

    公开(公告)日：2011-11-22

    申请号：US12049844

    申请日：2008-03-17

    申请人： Kenichi Kasazumi ,  Tomoya Sugita

    发明人： Kenichi Kasazumi ,  Tomoya Sugita

    IPC分类号： G03H1/16

    CPC分类号： G03H1/12 ,  G03H2223/13 ,  G03H2223/19 ,  G03H2225/33 ,  G03H2225/55 ,  G03H2240/61 ,  G11B7/0065 ,  G11B7/128 ,  G11B7/1369

    摘要： A hologram recording/reproducing apparatus includes: a coherent light source; a spatial light modulator which spatially modulates light from the coherent light source; a Fourier transform lens which concentrates light modulated by the spatial light modulator upon a hologram medium; and a two-dimensional light-receiving element array which receives light from the hologram medium. The spatial light modulator is divided into a reference light area and a signal light area, and the divergence angle of reference light emitted from the reference light area is wider than the divergence angle of signal light emitted from the signal light area.

    摘要翻译： 全息记录/重放装置包括：相干光源; 空间光调制器，空间调制来自相干光源的光; 将由空间光调制器调制的光聚集在全息图介质上的傅里叶变换透镜; 以及从全息图介质接收光的二维光接收元件阵列。 空间光调制器被分为参考光区域和信号光区域，从参考光区域发射的参考光的发散角比从信号光区域发射的信号光的发散角宽。