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    3D projection system
    1.
    发明授权
    3D projection system 有权

    公开(公告)号：US10739611B2

    公开(公告)日：2020-08-11

    申请号：US16221107

    申请日：2018-12-14

    Applicant: RealD Inc.

    Inventor： Miller H. Schuck ,  Michael G. Robinson ,  Gary D. Sharp

    IPC: G02B30/35 ,  G02B30/25 ,  H04N13/337 ,  H04N13/341 ,  G02B30/24 ,  G02B26/00 ,  G02B13/00

    Abstract: A polarization conversion system separates light from an unpolarized image source into a first state of polarization (SOP) and an orthogonal second SOP, and directs the polarized light on first and second light paths. The SOP of light on only one of the light paths is transformed to an orthogonal state such that both light paths have the same SOP. A polarization modulator temporally modulates the light on the first and second light paths to first and second output states of polarization. First and second projection lenses direct light on the first and second light paths toward a projection screen to form substantially overlapping polarization encoded images. The polarization modulator may be located before or after the projection lenses. The polarization-encoded images may be viewed using eyewear with appropriate polarization filters.

    Polarization conversion systems for stereoscopic projection
    2.
    发明申请
    Polarization conversion systems for stereoscopic projection 审中-公开

    公开(公告)号：US20190011825A1

    公开(公告)日：2019-01-10

    申请号：US15933639

    申请日：2018-03-23

    Applicant: RealD Inc.

    Inventor： Miller H. Schuck ,  Michael G. Robinson ,  Gary D. Sharp

    IPC: G03B35/26 ,  G03B35/22 ,  G03B21/28 ,  G02B27/22 ,  H04N13/341 ,  G02B27/28 ,  G02B27/26 ,  G03B21/14

    Abstract: A polarization conversion system (PCS) is located in the output light path of a projector. The PCS may include a polarizing beam splitter, a polarization rotating element, a reflecting element, and a polarization switch. Typically, a projector outputs randomly-polarized light. This light is input to the PCS, in which the PCS separates p-polarized light and s-polarized light at the polarizing beam splitter. P-polarized light is directed toward the polarization switch on a first path. The s-polarized light is passed on a second path through the polarization rotating element (e.g., a half-wave plate), thereby transforming it to p-polarized light. A reflecting element directs the transformed polarized light (now p-polarized) along the second path toward the polarization switch. The first and second light paths are ultimately directed toward a projection screen to collectively form a brighter screen image in cinematic applications utilizing polarized light for three-dimensional viewing.

    Segmented directional backlight and related methods of backlight illumination
    6.
    发明申请
    Segmented directional backlight and related methods of backlight illumination 审中-公开

    公开(公告)号：US20160223824A1

    公开(公告)日：2016-08-04

    申请号：US15012758

    申请日：2016-02-01

    Applicant: RealD Inc.

    Inventor： Michael G. Robinson

    IPC: G02B27/22

    CPC classification number: G02B27/225 ,  G02B6/0048

    Abstract: Backlit display systems, such as those employed with LED backlit displays, including those configured for autostereoscopic operation, may employ synchronization between the backlight and the presentation of sequential left and right eye images at a frame rate exceeding approximately 100 Hz. To successfully directionally illuminate isolated frames, the disclosed principles provide for segmenting the directional illumination and introducing a phase shifted, synchronized, pulsed drive scheme for the illumination segments. Accordingly, the principles disclosed herein are directed to segmented directional illumination systems and related techniques for segmented directional backlight illumination.

    Wide field-of-view stereoscopic projection system
    7.
    发明申请
    Wide field-of-view stereoscopic projection system 有权
    宽视场立体投影系统

    公开(公告)号：US20160100157A1

    公开(公告)日：2016-04-07

    申请号：US14965382

    申请日：2015-12-10

    Applicant: RealD Inc.

    Inventor： Miller H. Schuck ,  Michael G. Robinson ,  Gary D. Sharp

    IPC: H04N13/04 ,  G02B15/177 ,  G02B15/16

    CPC classification number: H04N13/363 ,  G02B15/161 ,  G02B15/177 ,  G02B27/22 ,  G02B27/26 ,  G03B21/14 ,  G03B35/20 ,  G03B35/26 ,  H04N13/334 ,  H04N13/337

    Abstract: Disclosed embodiments relate to a stereoscopic projection system and methods. An exemplary disclosed projection system includes an optical component disposed between the lenses of a lens arrangement. An exemplary lens arrangement includes a first power group, a second power group, and an aperture stop. In an embodiment, the optical component is disposed between the first power group and the aperture stop. In an exemplary embodiment, the optical component is proximate to the aperture stop. By disposing the optical component closer to or proximate to the aperture stop in the lens arrangement, various benefits may be realized, including improved contrast uniformity.

    Abstract translation: 公开的实施例涉及立体投影系统和方法。 一种示例性的公开的投影系统包括设置在透镜装置的透镜之间的光学部件。 示例性透镜装置包括第一电源组，第二电源组和孔径光阑。 在一个实施例中，光学部件设置在第一电源组和孔径光阑之间。 在示例性实施例中，光学部件靠近孔径光阑。 通过将光学部件设置在透镜装置中更接近或靠近孔径光阑，可以实现各种益处，包括改进的对比度均匀性。

    Directional backlight
    8.
    发明授权
    Directional backlight 有权
    定向背光

    公开(公告)号：US09188731B2

    公开(公告)日：2015-11-17

    申请号：US13838936

    申请日：2013-03-15

    Applicant: REALD INC.

    Inventor： Graham John Woodgate ,  Michael G. Robinson ,  Jonathan Harrold ,  Miller H. Schuck

    IPC: G02B6/43 ,  G02F1/13357 ,  F21V8/00 ,  G02F1/1335

    CPC classification number: G02B6/0078 ,  G02B6/0048 ,  G02B6/0055 ,  G02B6/0061 ,  G02B6/0068 ,  G02B6/0073 ,  G02B6/0076 ,  G02F1/133524 ,  G02F2001/133567

    Abstract: Disclosed is a light guiding valve apparatus including at least one transparent stepped waveguide optical valve for providing large area collimated illumination from localized light sources, and at least one further illumination source. A stepped waveguide may be a stepped structure, where the steps include extraction features 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. Such controlled illumination may provide for efficient, multi-user autostereoscopic displays as well as improved 2D display functionality. Light from a separate illumination source may pass through the transparent stepped waveguide optical valve to provide at least one further additional illumination function.

    Abstract translation: 公开了一种导光阀装置，其包括至少一个用于从局部光源提供大面积准直照明的透明阶梯式波导光阀，以及至少一个另外的照明源。 阶梯式波导可以是阶梯式结构，其中步骤包括对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，以提供从波导的顶表面离开的离散照明光束。 这种受控照明可以提供有效的多用户自动立体显示器以及改进的2D显示功能。 来自单独的照明源的光可以通过透明的阶梯式波导光阀，以提供至少一个另外的照明功能。

    Electronic display numerical aberration correction
    10.
    发明申请
    Electronic display numerical aberration correction 审中-公开
    电子显示数字像差校正

    公开(公告)号：US20150035953A1

    公开(公告)日：2015-02-05

    申请号：US14448098

    申请日：2014-07-31

    Applicant: RealD Inc.

    Inventor： Leo Bredehoft ,  Michael G. Robinson

    IPC: H04N13/04

    CPC classification number: H04N13/133 ,  H04N13/122 ,  H04N13/327 ,  H04N13/376

    Abstract: Disclosed is a method for stereoscopic numerical aberration compensation. One embodiment of this may be implemented as a software module which may be invoked after the display content has been copied, as in the case of prepared content such as a movie, or rendered, as in the case of dynamically-generated content, such as a game or design visualization application. This scheme windows the image in the frame buffer in-place, as a final processing step prior to transmission to the display. A less-tightly-integrated embodiment modifies the data during transmission, with minimal additional buffering.

    Abstract translation: 公开了一种用于立体数字像差补偿的方法。 一个实施例可以实现为可以在复制显示内容之后调用的软件模块，如在诸如电影或已渲染的准备的内容的情况下，如在动态生成的内容的情况下，例如 游戏或设计可视化应用程序。 该方案将帧缓冲器中的图像初始化，作为在传输到显示器之前的最后处理步骤。 较不紧密集成的实施例在传输期间以最少的额外缓冲来修改数据。

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