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。

公开(公告)号：US08760760B2

公开(公告)日：2014-06-24

申请号：US13250638

申请日：2011-09-30

Applicant: David A. Coleman ,  Gary D. Sharp

Inventor： David A. Coleman ,  Gary D. Sharp

IPC: G03B21/60 ,  G03B21/56

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。

公开(公告)号：US08749615B2

公开(公告)日：2014-06-10

申请号：US12286449

申请日：2008-09-29

Applicant: Lenny Lipton ,  Robert Akka ,  Matt Cowan ,  Josh Greer

Inventor： Lenny Lipton ,  Robert Akka ,  Matt Cowan ,  Josh Greer

IPC: H04N13/00 ,  H04N15/00

CPC classification number: H04N13/161 ,  H04N13/194 ,  H04N19/597

Abstract: A method for demultiplexing frames of compressed image data is provided. The image data includes a series of left compressed images and a series of right compressed images, the right compressed images and left compressed images compressed using a compression function. The method includes receiving the frames of compressed image data via a medium configured to transmit images in single frame format, and performing an expansion function on frames of compressed image data, the expansion function configured to select pixels from the series of left compressed images and series of right compressed images to produce replacement pixels to form a substantially decompressed set of stereo image pairs. Additionally, a system for receiving stereo pairs, multiplexing the stereo pairs for transmission across a medium including single frame formatting, and demultiplexing received data into altered stereo pairs is provided.

Abstract translation: 提供了一种解压缩图像数据帧的方法。 图像数据包括一系列左压缩图像和一系列右压缩图像，使用压缩函数压缩的右压缩图像和左压缩图像。 该方法包括经由被配置为以单帧格式发送图像的介质接收压缩图像数据的帧，并且对压缩图像数据的帧执行扩展功能，该扩展功能被配置为从一系列左压缩图像和系列中选择像素 的右压缩图像以产生替换像素以形成基本上解压缩的一组立体图像对。 另外，提供了一种用于接收立体声对的系统，将包括单帧格式的介质的立体声对多路传输，并将接收的数据解复用为改变的立体声对。

公开(公告)号：US08711477B2

公开(公告)日：2014-04-29

申请号：US13290978

申请日：2011-11-07

Applicant: David A. Coleman ,  Gary D. Sharp

Inventor： David A. Coleman ,  Gary D. Sharp

IPC: G03B21/60

CPC classification number: G03B21/60 ,  F16H21/14 ,  G02B27/26 ,  G03B35/16 ,  G03B35/26 ,  Y10T74/18232 ,  Y10T428/24802

Abstract: Polarization preserving front projection screens and diffusers provide optimum polarization preservation for stereoscopic 3D viewing, as well as improved light control for enhanced brightness, uniformity, and contrast for both 2D and 3D systems. Generally, the disclosed screens direct light from a projector toward viewers within a diffusion locus, while maintaining optimum gain characteristics. More specifically, light incident on a region of the front projection screen from a predetermined projection direction is reflected by an engineered surface to a predetermined diffusion locus after undergoing substantially single reflections. The engineered surface, comprised of generating kernels, is used to optimally diffuse illumination light into a range of viewing angles, within the diffusion locus, with suitable gain profile, while optimally preserving polarization for 3D applications. Such a screen, when combined with matched polarization analyzing eyewear, provides extremely low cross-talk from any observation point.

Abstract translation: 极化保护前投影屏幕和扩散器为立体3D观看提供了最佳的极化保存，以及改进的光控制，以提高2D和3D系统的亮度，均匀性和对比度。 通常，所公开的屏幕将光从投影仪引导到扩散轨迹内的观看者，同时保持最佳增益特性。 更具体地说，从预定投影方向入射到前投影屏幕的区域的光在进行基本上单次反射之后被工程化表面反射到预定的扩散轨迹。 包括生成内核的工程表面用于将照明光最优化地扩散到扩散轨迹内的视角范围内，并具有适当的增益分布，同时最佳地保持3D应用的极化。 当与匹配的偏振分析眼镜组合时，这样的屏幕提供了来自任何观察点的极低的串扰。

公开(公告)号：US08659828B2

公开(公告)日：2014-02-25

申请号：US13488081

申请日：2012-06-04

Applicant: Gary D. Sharp ,  David A. Coleman ,  Joel Petersen ,  Chris Rich ,  Ray Lewandowski

Inventor： Gary D. Sharp ,  David A. Coleman ,  Joel Petersen ,  Chris Rich ,  Ray Lewandowski

IPC: G03B21/60

CPC classification number: G03B21/604 ,  B29D11/0074

Abstract: Polarization preserving projection screens provide optimum polarization preservation for 3D viewing. The projection screens additionally provide improved light control for enhanced brightness, uniformity, and contrast for both 2D and 3D systems. Generally, the disclosed method for providing a projection screen comprises embossing at least a first side of a first substrate to produce an optically functional material and then cutting the optically functional material into pieces to produce a plurality of engineered particles. The plurality of engineered particles may then be deposited on a second substrate to produce a substantially homogeneous optical appearance of the projection screen.

Abstract translation: 极化保护投影屏为3D观看提供最佳的极化保存。 投影屏幕另外提供改进的光控制，以提高2D和3D系统的亮度，均匀性和对比度。 通常，所提供的用于提供投影屏幕的方法包括压印第一基板的至少第一侧以产生光学功能材料，然后将光学功能材料切割成片以产生多个工程化颗粒。 然后可以将多个工程化颗粒沉积在第二基底上以产生投影屏幕的基本均匀的光学外观。

公开(公告)号：US08651726B2

公开(公告)日：2014-02-18

申请号：US13470291

申请日：2012-05-12

Applicant: Michael G. Robinson

Inventor： Michael G. Robinson

IPC: F21V7/04

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

Abstract: By introducing a stack of alternating high and low index dichroic material layers on the exit surface of a waveguide for a wedge type directional backlight, natural reflectivity differences between polarized components can be increased, effectively reflecting the vast proportion of S-polarized light rays, while at the same time transmitting the P-polarized light rays, of light impacting the exit surface of the waveguide at an angle sufficient to exit the waveguide. This recovers polarization in wedge type backlight systems, increasing illumination exiting the waveguide. Also, on the back reflecting surface of the waveguide, a birefringent material can be added to efficiently transform S-polarized reflected light from the dichroic stack, into returning P-polarized light. Because returning rays that are now P-polarized by the birefringent material have already achieved the critical angle for exiting the waveguide, the rays transformed to P-polarization can now also exit the waveguide, increasing waveguide illumination.

Abstract translation: 通过在波导的出口表面上引入一叠交替的高折射率和低折射率的二向色性材料层用于楔形方向性背光源，可以增加极化分量之间的自然反射率差异，有效地反映大量的S偏振光线，同时 同时透射P偏振光，其以足以离开波导的角度冲击波导的出射表面。 这恢复了楔形背光系统中的极化，增加了离开波导的照明。 此外，在波导的背反射面上，可以添加双折射材料，以有效地将来自二向色层的S偏振反射光变换为返回的P偏振光。 因为现在由双折射材料P偏振的返回光线已经达到了用于离开波导的临界角，所以变换为P偏振的光线现在也可以离开波导，增加波导照明。

公开(公告)号：US20140009508A1

公开(公告)日：2014-01-09

申请号：US13896870

申请日：2013-05-17

Applicant: RealD Inc.

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

IPC: G09G5/10 ,  F21V8/00

CPC classification number: G09G5/10 ,  B60K35/00 ,  G02B6/0011 ,  G02B6/003 ,  G02B6/0048 ,  G02B6/0066 ,  G02B6/0068 ,  G02B27/225 ,  H04N13/32 ,  H04N13/356 ,  H04N2013/403 ,  H04N2213/001

Abstract: Disclosed is an imaging directional backlight including an array of light sources, and a control system arranged to provide variable distribution of luminous fluxes, scaled inversely by the width associated with the respective light sources in the lateral direction, across the array of light sources. The luminous intensity distribution of output optical windows may be controlled to provide desirable luminance distributions in the window plane of an autostereoscopic display, a directional display operating in wide angle 2D mode, privacy mode and low power consumption mode. Image quality may be improved and power consumption reduced.

Abstract translation: 公开了一种包括光源阵列的成像定向背光，以及控制系统，被布置成提供横跨光源阵列的与横向方向上的各个光源相关联的宽度相反缩放的光束的可变分布。 可以控制输出光学窗口的发光强度分布，以提供在自动立体显示器的窗平面中所需的亮度分布，以广角2D模式操作的定向显示，隐私模式和低功耗模式。 可以提高图像质量并降低功耗。

公开(公告)号：US20130328866A1

公开(公告)日：2013-12-12

申请号：US13897150

申请日：2013-05-17

Applicant: REALD INC.

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

IPC: F21V8/00 ,  G02B27/22

CPC classification number: G02B6/005 ,  G02B6/0028 ,  G02B6/003 ,  G02B6/0048 ,  G02B27/225

Abstract: Disclosed is an imaging directional backlight that cooperates with a spatial light modulator to direct light into a first viewing window for one set of image pixels and into a second viewing window for a second set of image pixels. The waveguide may comprise a stepped structure, where the steps further comprise 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. Viewing windows are formed through imaging individual light sources and hence defines the relative positions of system elements and ray paths. Such an apparatus may be used to achieve an autostereoscopic display with a flat structure, not requiring fast response speed spatial light modulators.

Abstract translation: 公开了一种成像定向背光，其与空间光调制器配合以将光引导到用于一组图像像素的第一观看窗口并进入第二组图像像素的第二观看窗口。 波导可以包括阶梯式结构，其中步骤还包括隐藏于引导光的提取特征，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。 这种装置可以用于实现具有平坦结构的自动立体显示器，不需要快速响应速度的空间光调制器。

公开(公告)号：US20130321406A1

公开(公告)日：2013-12-05

申请号：US13897191

申请日：2013-05-17

Applicant: Reald Inc.

Inventor： Jonathan Harrold ,  Graham J. Woodgate ,  Michael G. Robinson ,  Roger Landowski

IPC: G02B27/22

CPC classification number: G02B27/225 ,  G02B6/0011 ,  G02B6/002 ,  G02B6/0038 ,  G02B6/0048 ,  G02B6/0055 ,  G02B6/0068 ,  G02B27/22 ,  H04N13/32 ,  H04N13/356 ,  H04N13/368 ,  H04N13/371 ,  H04N13/373 ,  H04N13/376 ,  H04N13/378 ,  H04N13/38 ,  H04N2013/403

Abstract: Disclosed is an autostereoscopic display apparatus comprising a light guiding valve apparatus including an imaging directional backlight, an illuminator array and an observer tracking system arranged to achieve control of an array of illuminators which may provide a directional display to an observer over a wide lateral and longitudinal viewing range with low flicker.

Abstract translation: 公开了一种自动立体显示装置，其包括导光阀装置，该导光阀装置包括成像方向性背光源，照明器阵列和观察器跟踪系统，其被布置为实现照明器阵列的控制，所述照明器阵列可以在广泛的横向和纵向上向观察者提供定向显示 观看范围低闪烁。

公开(公告)号：US20130286015A1

公开(公告)日：2013-10-31

申请号：US13845876

申请日：2013-03-18

Applicant: REALD INC.

Inventor： Michael G. Robinson

IPC: G06T7/00 ,  G06T15/20

CPC classification number: H04N13/122 ,  G06T7/579 ,  G06T7/593 ,  G06T15/20 ,  G09G3/003 ,  G09G5/393 ,  G09G5/397 ,  H04N13/239 ,  H04N13/275 ,  H04N2013/0081 ,  H04N2013/0085

Abstract: A method for providing optimal correction to depth mapping between captured and displayed stereoscopic content. The solution is derived in a continuous form that can be implemented through CGI scaling techniques compatible with image rendering techniques. Similar correction can be implemented with variable depth-dependent camera separation and disparity re-mapping. The latter is applicable to correcting existing stereoscopic content.