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    Polarization conversion system and method for projecting polarization encoded imagery
    1.
    发明申请
    Polarization conversion system and method for projecting polarization encoded imagery 审中-公开

    公开(公告)号：US20190196214A1

    公开(公告)日：2019-06-27

    申请号：US16221107

    申请日：2018-12-14

    Applicant: RealD Inc.

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

    IPC: G02B27/26 ,  G02B27/22 ,  G02B26/00 ,  H04N13/341 ,  H04N13/337

    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.

    Wide angle imaging directional backlights
    4.
    发明申请
    Wide angle imaging directional backlights 有权
    广角成像定向背光

    公开(公告)号：US20130307831A1

    公开(公告)日：2013-11-21

    申请号：US13839552

    申请日：2013-03-15

    Applicant: REALD INC.

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

    IPC: F21V8/00 ,  G09G5/14 ,  G02B27/22

    CPC classification number: G02B6/0068 ,  G02B6/0038 ,  G02B6/0043 ,  G02B6/0048 ,  G02B6/0055 ,  G02B6/0076 ,  G02B27/2264 ,  G09G3/003 ,  G09G3/342 ,  G09G5/14 ,  G09G2354/00 ,  H04N13/312 ,  H04N13/32 ,  H04N13/366 ,  H04N13/368 ,  H04N13/376 ,  H04N2013/403 ,  H04N2013/405

    Abstract: 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.

    Abstract translation: 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在导向光中隐藏的提取特征，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。 观察窗通过成像各个光源形成，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，未校正的系统产生非照明的空隙部分，防止均匀的广角2D照明模式。 可以通过从系统的物体平面，附加的成像表面和/或通过改变光线路径引入额外的源来广角地消除这种不均匀性的系统。

    Beam scanned display apparatus and method thereof
    5.
    发明申请
    Beam scanned display apparatus and method thereof 审中-公开
    光束扫描显示装置及其方法

    公开(公告)号：US20130176407A1

    公开(公告)日：2013-07-11

    申请号：US13734519

    申请日：2013-01-04

    Applicant: RealD Inc.

    Inventor： Kevin R. Curtis ,  Gary D. Sharp ,  Miller H. Schuck

    IPC: H04N13/04

    CPC classification number: H04N13/324 ,  G02B26/101 ,  G02B27/104 ,  G02B27/2214 ,  H04N9/3129 ,  H04N13/363

    Abstract: Generally, display systems may be employed in cinema and exhibition applications. Laser scanned display systems may be enabled such that the display systems may display three dimensional (“3D”) content. One example of a display system may include a diffusive screen which may be a transmissive diffuser and at least a light engine or an array of light engines, in which the light engine or array of light engines may include at least a light source, beam combining optics which may combine colors into at least one of a single beam or closely spaced beams, and at least a scanning system which may steer the beam to a desired location on the diffusive screen.

    Abstract translation: 通常，显示系统可以用于电影和展览应用。 可以启用激光扫描显示系统，使得显示系统可以显示三维（“3D”）内容。 显示系统的一个示例可以包括扩散屏幕，其可以是透射扩散器和至少一个光引擎或光引擎阵列，其中光引擎或光引擎阵列可以包括至少一个光源，光束组合 光学元件可以将颜色组合成单个光束或紧密间隔的光束中的至少一个，以及至少一个扫描系统，其可以将光束转向漫射屏幕上的期望位置。

    Multi-primary backlight for multi-functional active-matrix liquid crystal displays
    6.
    发明申请
    Multi-primary backlight for multi-functional active-matrix liquid crystal displays 审中-公开

    公开(公告)号：US20190051259A1

    公开(公告)日：2019-02-14

    申请号：US16044813

    申请日：2018-07-25

    Applicant: RealD Inc.

    Inventor： Miller H. Schuck ,  Gary D. Sharp ,  Douglas J. McKnight ,  Terry Norton

    IPC: G09G3/36 ,  G02F1/1335 ,  G09G3/00 ,  G09G3/34 ,  H04N13/334

    Abstract: A direct view display provides a light modulating panel and a backlight including first and second sets of spectral emitters. Several modes of operation may be provided including an advanced 2D mode, and an enhanced color gamut mode employing simultaneous illumination of the first and second set of spectral emitters. Another embodiment may be an optical structure for a multi-functional LCD display with wide color gamut and high stereo contrast. The optical structure may also be used to produce more saturated colors for a wider display color gamut and also may be used to produce a brighter backlight structure through light recycling of the wider bandwidth light back into the optical structure.

    Polarization conversion system and method for projecting polarization encoded imagery
    7.
    发明授权
    Polarization conversion system and method for projecting polarization encoded imagery 有权

    公开(公告)号：US10203511B2

    公开(公告)日：2019-02-12

    申请号：US15655693

    申请日：2017-07-20

    Applicant: RealD Inc.

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

    IPC: G02B27/26 ,  G02B27/22 ,  H04N9/31 ,  H04N13/337 ,  H04N13/341 ,  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 from 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
    10.
    发明申请
    Polarization conversion systems for stereoscopic projection 有权
    用于立体投影的极化转换系统

    公开(公告)号：US20160041460A1

    公开(公告)日：2016-02-11

    申请号：US14621836

    申请日：2015-02-13

    Applicant: RealD Inc.

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

    IPC: G03B35/26 ,  G02B27/28 ,  G02B27/22 ,  G03B21/28 ,  G03B35/22

    CPC classification number: G03B35/26 ,  G02B27/2264 ,  G02B27/26 ,  G02B27/283 ,  G03B21/142 ,  G03B21/28 ,  G03B35/22 ,  H04N13/341

    Abstract: 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.

    Abstract translation: PCS可以包括偏振分束器，偏振旋转元件，反射元件和偏振开关。 通常，投影仪输出随机偏振光。 该光被输入到PCS，其中PCS在偏振分束器处分离p偏振光和s偏振光。 P偏振光在第一路径上被引向偏振开关。 s偏振光在穿过偏振旋转元件（例如半波片）的第二路径上通过，从而将其变换为p偏振光。 反射元件将沿着第二路径的变换的偏振光（现在p偏振光）引向偏振开关。 第一和第二光路最终定向到投影屏幕，以在使用偏振光进行三维观看的电影应用中共同形成更亮的屏幕图像。

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