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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
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。
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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
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。
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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。
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Patent Agency Ranking
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
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。
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公开(公告)号：US09436015B2
公开(公告)日：2016-09-06
申请号：US14137569
申请日：2013-12-20
Applicant: RealD Inc.
Inventor： Graham J. Woodgate , Jonathan Harrold , Michael G. Robinson
CPC classification number: G02B27/2214 , G02B6/002 , G02B6/0038 , G02B6/0048 , G02B6/0053 , G02B6/0068 , H04N13/305 , H04N13/32 , H04N13/356 , H04N13/366 , H04N13/398 , H04N2013/403
Abstract: Disclosed is an imaging directional backlight apparatus comprising a waveguide, a light source array, and a further optical element for providing large area directed illumination from localized light sources. The imaging directional backlight may comprise a stepped waveguide that 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. The further optical element may comprise a superlens comprising first and second aligned lens arrays that may be arranged to modify the output viewing windows to achieve enhanced window imaging from the directional backlight.
Abstract translation: 公开了一种成像方向性背光装置，其包括波导，光源阵列和用于从局部光源提供大面积定向照明的另外的光学元件。 成像定向背光可以包括可以包括阶梯式结构的阶梯式波导，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。 通过成像各个光源形成观察窗。 另外的光学元件可以包括包括第一和第二对准的透镜阵列的超滤镜，其可被布置成修改输出观察窗口，以实现来自定向背光源的增强的窗口成像。
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公开(公告)号：US20160131823A1
公开(公告)日：2016-05-12
申请号：US14821515
申请日：2015-08-07
Applicant: RealD Inc.
Inventor： Graham J. Woodgate , Michael G. Robinson , Jonathan Harrold , Miller H. Schuck
IPC: F21V8/00
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。
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公开(公告)号：US20130335821A1
公开(公告)日：2013-12-19
申请号：US13897102
申请日：2013-05-17
Applicant: REALD INC.
Inventor： Michael G. Robinson , Graham J. Woodgate , Jonathan Harrold , Miller H. Schuck
CPC classification number: G02B6/0023 , G02B6/0016 , G02B6/0028 , G02B6/003 , G02B6/0031 , G02B6/0048 , G02B6/0068 , G02B27/22
Abstract: Disclosed is an imaging directional backlight apparatus for providing large area uniform directed illumination from localized light sources. Within an exemplary optical valve system, a waveguide comprises a stepped structure, where the steps 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. Such controlled illumination may provide for efficient, multi-user autostereoscopic displays as well as improved 2D display functionality. Illumination uniformity is provided by the positioning, packaging, and optically modifying of individual input sources. The latter employs non-imaging and refractive optics.
Abstract translation: 公开了一种用于从局部光源提供大面积均匀定向照明的成像定向背光装置。 在示例性的光阀系统内，波导包括阶梯结构，其中步骤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。 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。 通过对各个输入源的定位，封装和光学修改来提供照明均匀性。 后者采用非成像和折射光学。
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公开(公告)号：US20130308185A1
公开(公告)日：2013-11-21
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
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.
Abstract translation: 公开了一种成像方向性背光偏振恢复装置，其包括成像方向性背光源，其至少具有可选择的偏振变换和重定向元件的偏振敏感反射分量。 可以通过对各个光源进行成像而形成观察窗，并因此定义系统元件和射线路径的相对位置。 基本成像定向背光系统主要为液晶显示器（LCD）的照明提供基本上非偏振的光，当使用传统的片状偏光器作为显示器的输入时，导致光输出的至少50％的损失。 本发明引入偏振敏感反射元件以分离期望和不期望的偏振状态，以便为了可用照明的反射光的变换和重定向。 极化转换和重定向可以通过附加组件如延迟片和镜面反射镜来提供。
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