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    Polarization conversion systems for stereoscopic projection
    52.
    发明授权
    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：US09594298B2

    公开(公告)日：2017-03-14

    申请号：US14485256

    申请日：2014-09-12

    Applicant: RealD Inc.

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

    IPC: G02B27/00 ,  G03B35/26 ,  G02B27/26 ,  G02B27/28 ,  H04N13/04 ,  G03B21/14 ,  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: 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.

    Abstract translation: 偏振转换系统（PCS）位于投影仪的输出光路中。 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。

    Stereoscopic eyewear with stray light management
    54.
    发明授权
    Stereoscopic eyewear with stray light management 有权
    立体眼镜带杂散光管理

    公开(公告)号：US09383590B2

    公开(公告)日：2016-07-05

    申请号：US14301129

    申请日：2014-06-10

    Applicant: RealD Inc.

    Inventor： Gary D. Sharp ,  David A. Coleman

    IPC: G02C7/12 ,  G02B27/26 ,  G02C7/16 ,  G02B1/11 ,  G02C13/00

    CPC classification number: G02B27/26 ,  G02B1/11 ,  G02C7/16 ,  G02C13/001 ,  Y10T29/31

    Abstract: Disclosed embodiments relate to eyewear configured to reduce stray light. An exemplary embodiment of the eyewear accounts for various design factors, including the cross sectional profile of the rim, the micro topography of the rim surface, the reflectivity, the theater or room geometry, proximity of the eye to the lens, lens size, and the screen gain. An exemplary eyewear includes lenses connected to the rims of a frame, and a path may be defined through a maximum height of the outer flange portion of a rim and a maximum height of the inner flange portion of the rim section. The path may be inclined at an angle relative to an angle α relative to a longitudinal axis defined by the lenses.

    Abstract translation: 公开的实施例涉及配置为减少杂散光的眼镜。 眼镜的示例性实施例涉及各种设计因素，包括边缘的横截面轮廓，轮缘表面的微观形貌，反射率，剧院或房间几何形状，眼睛与镜片的接近度，镜片尺寸和 屏幕增益。 示例性的眼镜包括连接到框架的边缘的透镜，并且可以通过边缘的外凸缘部分的最大高度和边缘部分的内凸缘部分的最大高度限定路径。 路径可以相对于由透镜限定的纵向轴线相对于角度α成一定角度倾斜。

    Speckle reduction using screen vibration techniques and apparatus
    55.
    发明申请
    Speckle reduction using screen vibration techniques and apparatus 审中-公开

    公开(公告)号：US20160187667A1

    公开(公告)日：2016-06-30

    申请号：US14803859

    申请日：2015-07-20

    Applicant: RealD Inc.

    Inventor： Kevin Curtis ,  David A. Coleman ,  Gary D. Sharp

    IPC: G02B27/48 ,  G03B31/00 ,  G03B21/56

    CPC classification number: G02B27/48 ,  G03B21/56 ,  G03B21/562 ,  G03B31/00

    Abstract: Disclosed herein are systems and related methods for reducing speckle on display screen. More specifically, screen vibration is used to reduce speckle, and in accordance with the disclosed principles, the vibration may be achieved by using wave-based actuation (e.g., acoustic or electromagnetic waves) to vibrate the screen. In an exemplary embodiment, a speckle reducing system may comprise at least one actuating element located proximate to, but not in physical contact with, a display screen. In addition, the at least one actuating element may be configured to generate waves directed towards the display screen. When the waves impact the display screen, the waves impart vibration to the display screen.

    System for balancing the brightness of 2D and 3D cinema presentation
    57.
    发明申请
    System for balancing the brightness of 2D and 3D cinema presentation 审中-公开
    用于平衡2D和3D电影演示的亮度的系统

    公开(公告)号：US20160094820A1

    公开(公告)日：2016-03-31

    申请号：US14891247

    申请日：2014-05-14

    Applicant: Gary D. SHARP ,  David A. COLEMAN ,  RealD Inc.

    Inventor： Gary D. Sharp ,  David A. Coleman

    IPC: H04N9/31 ,  H04N13/04

    CPC classification number: H04N9/3182 ,  H04N13/122 ,  H04N13/341 ,  H04N13/356 ,  H04N13/363

    Abstract: Disclosed is a system for balancing brightness in cinema presentation. The brightness between 2D and 3D mode in cinema presentation may be substantially maintained without a substantial change in projector lamp current when switching between the two presentation modes. A dimmer can be engaged which allows the light in at least one path to be attenuated during 2D operation. The dimmer can be activated in any number of ways, including, but not limited to, mechanically, electromechanically, or electro-optically, any combination thereof, and so forth. The dimmer may be inserted in one light path and may be physically removed from the light path during 3D operation in order to maximize 3D efficiency.

    Abstract translation: 公开了一种用于平衡电影呈现中的亮度的系统。 在两种呈现模式之间切换时，电影呈现中的2D和3D模式之间的亮度可以被基本上保持而投影灯的电流没有显着变化。 可以接合调光器，其允许至少一条路径中的光在2D操作期间被衰减。 调光器可以以任何数量的方式被激活，包括但不限于机械的，机电的或电光学上的任何组合，等等。 调光器可以插入一个光路中，并且可以在3D操作期间物理地从光路中移除，以便最大化3D效率。

    Polarization recovery in a directional display device
    58.
    发明授权
    Polarization recovery in a directional display device 有权

    公开(公告)号：US09235057B2

    公开(公告)日：2016-01-12

    申请号：US13837466

    申请日：2013-03-15

    Applicant: REALD INC.

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

    IPC: G02B27/26 ,  G02B5/30 ,  G02B27/28 ,  G02B27/22 ,  F21V13/12 ,  F21V8/00

    CPC classification number: G02B6/0048 ,  F21V13/12 ,  G02B6/0056 ,  G02B27/225 ,  G02B27/2264

    Abstract: 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.

    Field-of-view compensated polarization switch for short-throw 3D projection
    59.
    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。

    Cleanable coating for projection screens
    60.
    发明授权
    Cleanable coating for projection screens 有权
    投影屏幕可清洁涂层

    公开(公告)号：US09146454B2

    公开(公告)日：2015-09-29

    申请号：US14313364

    申请日：2014-06-24

    Applicant: RealD Inc.

    Inventor： David A. Coleman ,  Gary D. Sharp

    IPC: G03B21/60 ,  G03B21/604 ,  G03B21/625 ,  G03B21/56 ,  G03B21/602

    CPC classification number: G03B21/60 ,  G03B21/56 ,  G03B21/602 ,  G03B21/604 ,  G03B21/625 ,  Y10T428/24355

    Abstract: A method for providing a projection screen for receiving stereoscopic images may include providing a substrate with a contoured, reflective surface, wherein light reflected from the substrate substantially may undergo no more than a single reflection and may also include coating a first layer on the substrate with a contoured, reflective surface. The first layer may substantially maintain the same optical properties as the substrate without the first layer. The first layer may be substantially conformal to the surface of the substrate and also may be a self assembled monolayer coating which may include at least a functional group that is hydrophobic.

    Abstract translation: 用于提供用于接收立体图像的投影屏幕的方法可以包括向基板提供具有轮廓的反射表面，其中从基板反射的光基本上可以经历不超过单个反射，并且还可以包括在基板上涂覆第一层， 一个轮廓，反光的表面。 第一层可以基本上保持与没有第一层的衬底相同的光学性质。 第一层可以基本上与衬底的表面共形，并且还可以是自组装的单层涂层，其可以包括至少一个疏水性的官能团。

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