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11 条记录 (耗时 0.016 秒)

    POLARIZATION RECOVERY IN A DIRECTIONAL DISPLAY DEVICE
    1.
    发明公开
    POLARIZATION RECOVERY IN A DIRECTIONAL DISPLAY DEVICE 审中-公开
    极化恢复在某种意义上相关的显示设备

    公开(公告)号：EP2850483A2

    公开(公告)日：2015-03-25

    申请号：EP13790274.8

    申请日：2013-05-15

    申请人： RealD Inc.

    发明人： ROBINSON, Michael, G. ,  SHARP, Gary, D. ,  WOODGATE, Graham, J. ,  HARROLD, Jonathan ,  SCHUCK, Miller, H.

    IPC分类号： G02B27/26 ,  G02B27/22 ,  G02F1/1335

    CPC分类号： G02B6/0048 ,  F21V13/12 ,  G02B6/0056 ,  G02B27/225 ,  G02B27/2264

    摘要： Disclosed is an imaging directional backlight polarization recovery apparatus including an imaging directional backlight with at least a polarization sensitive reflection component with optional polarization transformation and redirection elements. Viewing windows may be formed through imaging individual light sources and hence defines the relative positions of system elements and ray paths. The base imaging directional backlight systems provide substantially unpolarized light primarily for the illumination of liquid crystal displays (LCDs) resulting in at least 50% loss in light output when using a conventional sheet polarizer as input to the display. The invention herein introduces a polarization sensitive reflecting element to separate desired and undesired polarization states for the purposes of transformation and redirection of the reflected light for usable illumination. Polarization transformation and redirection can be provided by additional components such as retarder films and specular mirror surfaces.

    WIDE ANGLE IMAGING DIRECTIONAL BACKLIGHTS
    2.
    发明公开
    WIDE ANGLE IMAGING DIRECTIONAL BACKLIGHTS 审中-公开
    威士忌黛薇薇

    公开(公告)号：EP2850472A1

    公开(公告)日：2015-03-25

    申请号：EP13790809.1

    申请日：2013-05-15

    申请人： RealD Inc.

    发明人： ROBINSON, Michael, G. ,  WOODGATE, Graham, J. ,  HARROLD, Jonathan ,  SCHUCK, Miller, H.

    IPC分类号： G02B6/10 ,  G02F1/13357

    摘要： An imaging directional backlight apparatus including a waveguide, a light source array, for providing large area directed illumination from localized light sources. The waveguide may include a stepped structure, in which the steps may further include extraction features optically hidden to guided light, propagating in a first forward direction. Returning light propagating in a second backward direction may be refracted, diffracted, or reflected by the features to provide discrete illumination beams exiting from the top surface of the waveguide. Viewing windows are formed through imaging individual light sources and hence defines the relative positions of system elements and ray paths. The uncorrected system creates non-illuminated void portions when viewed off-axis preventing uniform wide angle 2D illumination modes. The system may be corrected to remove this non uniformity at wide angles through the introduction of additional sources away from the system's object plane, additional imaging surfaces, and/or by altering ray paths.

    摘要翻译： 一种成像方向性背光装置，包括用于从局部光源提供大面积定向照明的波导，光源阵列。 波导可以包括阶梯式结构，其中步骤还可以包括光引导光隐藏的提取特征，在第一向前方向上传播。 在第二反向传播的返回光可以由特征折射，衍射或反射，以提供离开波导的顶表面离散的照明光束。 通过成像各个光源形成观察窗，因此定义了系统元件和射线路径的相对位置。 当从偏轴观察时，未校正的系统产生未被照明的空隙部分，防止均匀的广角2D照明模式。 可以通过引入远离系统的物体平面，附加成像表面和/或改变射线路径的附加源来广角地消除该不均匀性的系统。

    DIRECTIONALLY ILLUMINATED WAVEGUIDE ARRANGEMENT
    3.
    发明公开
    DIRECTIONALLY ILLUMINATED WAVEGUIDE ARRANGEMENT 审中-公开
    有向照明波导安排

    公开(公告)号：EP2850471A1

    公开(公告)日：2015-03-25

    申请号：EP13790195.5

    申请日：2013-05-17

    申请人： RealD Inc.

    发明人： WOODGATE, Graham, J. ,  ROBINSON, Michael, G. ,  HARROLD, Jonathan ,  SCHUCK, Miller, H.

    IPC分类号： G02B6/10 ,  G02B27/22

    摘要： Disclosed is a light guiding valve apparatus comprising an optical valve, a two dimensional light source array and a focusing optic for providing large area collimated illumination from localized light sources. A stepped waveguide may be a stepped structure, in which the steps may be extraction features optically hidden to guided light, propagating in a first forward direction. Returning light propagating in a second backward direction may be refracted, diffracted, or reflected by the features to provide discrete illumination beams exiting from the top surface of the waveguide. A two dimensional array of viewing windows may be produced. Such controlled illumination may provide for efficient, multi-user autostereoscopic displays with wide viewing freedom and low cross talk and near-eye displays that are substantially transparent.

    DIRECTIONAL BACKLIGHT
    4.
    发明公开
    DIRECTIONAL BACKLIGHT 审中-公开
    定向背光

    公开(公告)号：EP2850488A1

    公开(公告)日：2015-03-25

    申请号：EP13791332.3

    申请日：2013-05-17

    申请人： RealD Inc.

    发明人： HARROLD, Jonathan ,  WOODGATE, Graham, J. ,  ROBINSON, Michael, G. ,  SCHUCK, Miller, H.

    IPC分类号： G02F1/13357 ,  F21S2/00 ,  F21V8/00

    CPC分类号： G02B6/0028 ,  G02B6/0048 ,  G02B27/22 ,  G02B27/2242 ,  G02B27/225 ,  G02B27/2264

    摘要： Disclosed is an optical inline light guiding apparatus which may include a substantially parallel planar light expansion section and a light extraction section comprising a stepped structure, in which the steps may be extraction features and guiding features. Such controlled illumination may provide for efficient, multi-user autostereoscopic displays with wide viewing freedom, high efficiency and low cross talk and other directional display uses.

    摘要翻译： 公开了一种光学直列式光导设备，其可以包括基本平行的平面光扩展部分和包括阶梯结构的光提取部分，其中阶梯可以是提取特征和引导特征。 这种受控照明可提供具有宽视角自由度，高效率和低串扰以及其他定向显示用途的高效率，多用户自动立体显示器。

    OBSERVER TRACKING AUTOSTEREOSCOPIC DISPLAY
    8.
    发明公开
    OBSERVER TRACKING AUTOSTEREOSCOPIC DISPLAY 审中-公开
    裸眼立体显示器观察员CHASE

    公开(公告)号：EP2875638A1

    公开(公告)日：2015-05-27

    申请号：EP13822472.0

    申请日：2013-07-10

    申请人： RealD Inc.

    发明人： WOODGATE, Graham, J. ,  ROBINSON, Michael, G. ,  HARROLD, Jonathan

    IPC分类号： H04N13/00

    CPC分类号： G02B27/2214 ,  G02B27/0093 ,  G02F1/01 ,  G02F1/13 ,  G02F1/29

    摘要： A spatially multiplexed autostereoscopic display is arranged to provide landscape and portrait operation. Multiple optical windows may be provided by spatial and temporal multiplexing techniques. A fast response lens array pair is aligned with a fast response spatial light modulator, and synchronized to provide first and second sets of images with first and second respective directionalities to provide first and second sets of respective optical windows. The first and second sets of optical windows may each comprise two or more optical windows in each viewing lobe. The optical windows may be arranged with an inclination to the vertical of 25 degrees to 65 degrees. An observer tracking system may be arranged to direct left and right eye image data to the left and right eyes of an observer, respectively, for landscape and portrait orientations of the display.

    CROSSTALK SUPPRESSION IN A DIRECTIONAL BACKLIGHT
    9.
    发明公开
    CROSSTALK SUPPRESSION IN A DIRECTIONAL BACKLIGHT 有权
    关于管辖权还原在某种意义上依赖背光照明

    公开(公告)号：EP2850487A1

    公开(公告)日：2015-03-25

    申请号：EP13790267.2

    申请日：2013-05-15

    申请人： RealD Inc.

    发明人： ROBINSON, Michael, G. ,  WOODGATE, Graham, J. ,  HARROLD, Jonathan ,  SHARP, Gary, D. ,  SCHUCK, Miller, H.

    IPC分类号： G02F1/13357 ,  F21S2/00 ,  F21V8/00

    CPC分类号： H04N13/315 ,  G02B6/0048 ,  G02B6/0051 ,  G02B6/0055 ,  G02B6/0068 ,  G02B27/22 ,  H04N13/32

    摘要： A directional backlight for a transmissive spatial light modulator comprises a waveguide having an input end, first and second, opposed guide surfaces for guiding light along the waveguide, and a reflective end facing the input end for reflecting light from the input light back through the waveguide. An array of light sources that output light predominantly in an emission band and in a conversion band are disposed across the input end of the waveguide and light is directed into respective optical windows in output directions distributed in the lateral direction in dependence on the input positions. To achieve crosstalk suppression, disposed between the input end and the light sources is a reflection reduction element that comprises a filter arranged to absorb light in the conversion band preferentially over light in the emission band, thereby reducing reflections of light incident on the input end after reflection from the reflective end.