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    Polarization compensated stereoscopic projection
    1.
    发明申请
    Polarization compensated stereoscopic projection 有权
    极化补偿立体投影

    公开(公告)号：US20150153582A1

    公开(公告)日：2015-06-04

    申请号：US14508945

    申请日：2014-10-07

    Applicant: RealD Inc.

    Inventor： Gary D. Sharp ,  David A. Coleman ,  Jianmin Chen

    IPC: G02B27/26 ,  G02F1/1335 ,  G02F1/13363 ,  G03B21/14

    CPC classification number: G02B27/26 ,  G02B5/3083 ,  G02B27/288 ,  G02F1/133528 ,  G02F1/13363 ,  G02F2001/133638 ,  G02F2413/02 ,  G02F2413/07 ,  G03B21/14 ,  G03B21/206 ,  G03B21/2073 ,  G03B35/26 ,  H04N13/337

    Abstract: Disclosed embodiments include stereoscopic systems having at least one compensator operable to reduce the sensitivity of polarization control over incidence angle of image source optics and analyzer optics. In an exemplary embodiment, the disclosed compensator is operable to compensate polarization changes induced by optics at either or both the image source subsystem and the analyzer subsystem, in which the polarization changes would be operable to cause leakage at the analyzer subsystem if uncompensated. As such, the disclosed compensators and compensation techniques are operable to reduce leakage at the analyzer subsystem even if the disclosed compensator may be located at the analyzer subsystem.

    Abstract translation: 公开的实施例包括具有至少一个补偿器的立体系统，其可操作以降低偏振控制对图像源光学器件和分析器光学器件的入射角的灵敏度。 在示例性实施例中，所公开的补偿器可操作以补偿由图像源子系统和分析器子系统中的一个或两者由光学器件引起的偏振变化，其中如果未补偿，则极化改变将可操作以在分析器子系统处引起泄漏。 因此，所公开的补偿器和补偿技术可操作以减少分析器子系统的泄漏，即使所公开的补偿器可能位于分析器子系统。

    Field-of-view compensated polarization switch for short-throw 3D projection
    3.
    发明申请
    Field-of-view compensated polarization switch for short-throw 3D projection 有权
    用于短投三维投影的视场补偿偏振开关

    公开(公告)号：US20140232948A1

    公开(公告)日：2014-08-21

    申请号：US14166636

    申请日：2014-01-28

    Applicant: RealD Inc.

    Inventor： Gary D. Sharp ,  Jianmin Chen ,  Michael G. Robinson

    IPC: H04N13/04 ,  G02F1/1335

    CPC classification number: H04N13/337 ,  G02B27/26 ,  G02F1/133528 ,  G02F1/133634 ,  G02F1/13471 ,  G02F1/1395 ,  G02F2001/133531 ,  G02F2413/11 ,  H04N13/363

    Abstract: Generally, this disclosure concerns the angle sensitivity of polarization switch elements and the resulting impact of the ray direction on performance. More specifically, apparatus and techniques for compensating the angular sensitivity of liquid crystal (LC) polarization switches are described that enhance the performance of polarization switches. For example, a polarization switch is disclosed that transforms linearly polarized light of an initial polarization orientation that includes a first and second liquid crystal cell with a compensator located between the LC cells. The compensator layer is operable to enhance the field of view through the polarization switch. Such compensation techniques are particularly useful for short-throw projection environments.

    Abstract translation: 通常，本公开涉及偏振开关元件的角度灵敏度以及由此导致的射线方向对性能的影响。 更具体地，描述了用于补偿液晶（LC）偏振开关的角灵敏度的装置和技术，其提高了偏振开关的性能。 例如，公开了一种偏振开关，其通过位于LC单元之间的补偿器转换包括第一和第二液晶单元的初始偏振取向的线偏振光。 补偿器层可操作以通过偏振开关增强视场。 这种补偿技术对于短投投影环境特别有用。

    Field-of-view compensated polarization switch for short-throw 3D projection
    5.
    发明授权
    Field-of-view compensated polarization switch for short-throw 3D projection 有权
    用于短投三维投影的视场补偿偏振开关

    公开(公告)号：US09167236B2

    公开(公告)日：2015-10-20

    申请号：US14166636

    申请日：2014-01-28

    Applicant: RealD Inc.

    Inventor： Gary D. Sharp ,  Jianmin Chen ,  Michael G. Robinson

    IPC: G02F1/1335 ,  H04N13/04 ,  G02B27/26 ,  G02F1/13363 ,  G02F1/139 ,  G02F1/1347

    CPC classification number: H04N13/337 ,  G02B27/26 ,  G02F1/133528 ,  G02F1/133634 ,  G02F1/13471 ,  G02F1/1395 ,  G02F2001/133531 ,  G02F2413/11 ,  H04N13/363

    Abstract: Generally, this disclosure concerns the angle sensitivity of polarization switch elements and the resulting impact of the ray direction on performance. More specifically, apparatus and techniques for compensating the angular sensitivity of liquid crystal (LC) polarization switches are described that enhance the performance of polarization switches. For example, a polarization switch is disclosed that transforms linearly polarized light of an initial polarization orientation that includes a first and second liquid crystal cell with a compensator located between the LC cells. The compensator layer is operable to enhance the field of view through the polarization switch. Such compensation techniques are particularly useful for short-throw projection environments.

    Abstract translation: 通常，本公开涉及偏振开关元件的角度灵敏度以及由此导致的射线方向对性能的影响。 更具体地，描述了用于补偿液晶（LC）偏振开关的角灵敏度的装置和技术，其提高了偏振开关的性能。 例如，公开了一种偏振开关，其通过位于LC单元之间的补偿器转换包括第一和第二液晶单元的初始偏振取向的线偏振光。 补偿器层可操作以通过偏振开关增强视场。 这种补偿技术对于短投投影环境特别有用。

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