公开(公告)号：WO2021076114A1

公开(公告)日：2021-04-22

申请号：PCT/US2019/056402

申请日：2019-10-15

Applicant: LEIA INC.

Inventor： FATTAL, David, A.

IPC: F21V8/00 ,  G02F1/1335 ,  G02B5/20

Abstract: A privacy-mode backlight includes a light guide configured to guide light having a predetermined collimation factor orthogonal to a length of the light guide and a plurality of scattering line elements arranged along the light guide length. Scattering line elements of the scattering line element plurality are configured to scatter out through an emission surface of the light guide a portion of the guided light as emitted light having an illumination beamwidth in the orthogonal direction determined by the collimation factor. The privacy-mode backlight further includes a directional optical diffuser configured to provide directional diffusion of the emitted light in a direction corresponding to the light guide length. The directional diffusion may provide uniform illumination in the light guide length direction. A privacy display further includes an array of light valves configured to modulate the emitted light to provide a private image.

公开(公告)号：WO2017132579A1

公开(公告)日：2017-08-03

申请号：PCT/US2017/015454

申请日：2017-01-27

Applicant: LEIA INC.

Inventor： FATTAL, David, A.

IPC: G02B6/35 ,  F21V8/00

CPC classification number: G02B6/0035 ,  G02B6/0036 ,  G02B6/0038

Abstract: A multiview backlight and a multiview display employ multibeam elements configured to provide a tilted plurality of light beams having different principal angular directions corresponding to different view directions of a plurality of views of the multiview display. Further, the tilted plurality of light beams has a tilt toward a center of a view zone of the multiview display to provide converging views. The multiview backlight includes a light guide and an array of the multibeam elements. The multiview display further includes multiview pixels that include view pixels to modulate the tilted plurality of light beams having the tilt and the different principal angular directions.

Abstract translation: 多视图背光和多视图显示器采用多束元件，所述多束元件被配置为提供具有与多视图显示器的多个视图中的不同视图方向相对应的具有不同主角方向的倾斜多个光束。 此外，倾斜的多个光束具有朝向多视图显示器的视区的中心的倾斜，以提供会聚视图。 多视图背光包括光导和多束元件的阵列。 多视图显示器还包括多视点像素，其包括视点像素以调制具有倾斜和不同主角方向的倾斜多个光束。

公开(公告)号：WO2022146445A1

公开(公告)日：2022-07-07

申请号：PCT/US2020/067749

申请日：2020-12-31

Applicant: LEIA INC.

Inventor： FATTAL, David, A. ,  LOWNEY, Joseph, D.

IPC: F21V8/00

Abstract: Examples disclosed herein include a plate light guide configured to guide light along a length of a light guide. The light guided along the length of the light guide propagates in at least two directional modes: a first directional mode and a second directional mode. Light guided in a first directional mode has one or both of a transverse component that is greater than and a vertical component that is less than respective transverse and vertical components of light guided in the second directional mode. Also included is a global mode mixer. The global mode mixer extends along the length of the light guide length and is configured to convert a portion of the light guided in a first directional mode into a second directional mode. A scattering element preferentially scatters light in the second directional mode out of the light guide.

公开(公告)号：WO2016111707A1

公开(公告)日：2016-07-14

申请号：PCT/US2015/010933

申请日：2015-01-10

Applicant: LEIA INC.

Inventor： FATTAL, David, A.

IPC: G02B6/124

CPC classification number: G02B6/0016 ,  G02B6/0036 ,  G02B6/34 ,  G06F3/0421 ,  G06F3/0428 ,  G06F2203/04109 ,  H04N13/305 ,  H04N2213/001

Abstract: A grating-coupled light guide includes a plate light guide and a grating coupler at an input to the plate light guide. The grating coupler is to receive light from a light source and to diffractively redirect the light into the plate light guide at a non-zero propagation angle as guided light. Characteristics of the grating coupler determine a spread angle of the diffractively redirected guided light.

Abstract translation: 光栅耦合光导包括平板光导和平板光导的输入处的光栅耦合器。 光栅耦合器用于接收来自光源的光，并以非零传播角度将光衍射地引导到板光导中作为导光。 光栅耦合器的特性决定了衍射导向光的扩展角。

公开(公告)号：WO2016138507A1

公开(公告)日：2016-09-01

申请号：PCT/US2016/019989

申请日：2016-02-27

Applicant: LEIA INC.

Inventor： FATTAL, David, A.

IPC: H04N5/232 ,  H04N5/225 ,  H04N13/02 ,  H04N13/04

CPC classification number: H04N13/128 ,  H04N5/247 ,  H04N13/106 ,  H04N13/111 ,  H04N13/243 ,  H04N13/282 ,  H04N13/296 ,  H04N13/302 ,  H04N13/351

Abstract: A multiview camera and multiview imaging system provide a plurality of different cropped images corresponding to a virtual screen located in a scene. The multiview camera includes a plurality of cameras configured to capture different images of a scene that have an overlapping portion in common. The multiview camera further includes an image processor configured to provide cropped images from the captured images according to a cropping window defined within the overlapping portion. The cropping window corresponds to a virtual screen located within the scene. An arrangement of the cameras corresponds to an arrangement of views of a multiview display configured to display the cropped images. The multiview imaging system further includes the multiview display.

Abstract translation: 多视点相机和多视角成像系统提供与位于场景中的虚拟屏幕相对应的多个不同的裁剪图像。 多视点摄像机包括配置成捕获具有共同重叠部分的场景的不同图像的多个照相机。 多视点摄像机还包括图像处理器，其被配置为根据在重叠部分内限定的裁剪窗口从捕获的图像提供裁剪图像。 裁剪窗口对应于位于场景内的虚拟屏幕。 相机的布置对应于被配置为显示裁剪的图像的多视图显示器的视图的布置。 多视点成像系统还包括多视图显示。

公开(公告)号：WO2022098550A1

公开(公告)日：2022-05-12

申请号：PCT/US2021/056901

申请日：2021-10-27

Applicant: LEIA INC.

Inventor： FATTAL, David, A. ,  HOEKMAN, Thomas ,  MA, Ming

IPC: G02B6/00 ,  G02B30/33 ,  H04N13/32

Abstract: A multiview backlight, multiview display, and method employ arrays of active emitters and a diffuser to provide an effective active emitter from emitted light from each active emitter. The multiview backlight includes an array of active emitters and a diffuser configured to provide effective active emitters having a predetermined size that is between one quarter and two times a size of a light valve of the multiview display. The multiview display includes an array of effective active emitters including active emitters and a diffuser configured to provide output emitted light. The multiview display further includes an array of light valves configured to modulate output emitted light to provide a displayed image. A spacing between effective active emitters is an integer multiple of a spacing between light valves of the multiview display.

公开(公告)号：WO2016182549A1

公开(公告)日：2016-11-17

申请号：PCT/US2015/030051

申请日：2015-05-09

Applicant: LEIA INC.

Inventor： BALDWIN, James, A. ,  FATTAL, David, A.

IPC: G02F1/13357

CPC classification number: G02B6/0068 ,  G02B5/1866 ,  G02B6/0036 ,  G02B6/0038 ,  G02B6/0073 ,  G02F2001/133622 ,  G02F2201/305 ,  H05B33/086

Abstract: Color-scanning grating-based backlighting includes a color scanning protocol to provide different colors of light in different regions of a plate light guide with an intervening dark region. A color-scanning grating-based backlight includes the plate light guide and a diffraction grating configured to diffractively couple out a portion of a guided light beam as a coupled-out light beam directed away from a plate light guide surface at a predetermined principal angular direction. The backlight further includes a multicolor light source configured to provide the different colors of light to the plate light guide as the guided light beam according to the color scanning protocol. Provided light of a first color in a first region is separated from provided light of a second color in a second region one or both by the intervening dark region and by a light-confining wall of the plate light guide.

Abstract translation: 基于彩色扫描光栅的背光包括彩色扫描协议，以在具有中间黑暗区域的平板光导的不同区域中提供不同颜色的光。 基于彩色扫描光栅的背光源包括平板光导和衍射光栅，该衍射光栅被配置为将导向光束的一部分衍射耦合出来，作为在预定主角方向上远离板导光表面的耦合光束 。 背光源还包括多色光源，其被配置为根据彩色扫描协议向作为引导光束的平板光导提供不同颜色的光。 由第一区域中的第一颜色的光与第二区域中的第二区域的所提供的光通过中间的暗区域和平板光导的光限制壁与一个或两个的第二区域分开。

公开(公告)号：WO2016118107A1

公开(公告)日：2016-07-28

申请号：PCT/US2015/011930

申请日：2015-01-19

Applicant: LEIA INC.

Inventor： FATTAL, David, A.

IPC: G02F1/13357

CPC classification number: G02B6/0038 ,  G02B6/00 ,  G02B6/0035 ,  G02B27/425 ,  G02F1/133606

Abstract: Unidirectional grating-based backlighting includes a light guide and a diffraction grating at a surface of the light guide. The light guide is to guide a light beam and the diffraction grating is configured to couple out a portion of the guided light beam using diffractive coupling and to direct the coupled-out portion away from the light guide surface as a primary light beam at a principal angular direction. The unidirectional grating-based backlighting further includes a reflective island in the light guide between the light guide surface and an opposite surface of the light guide to reflectively redirect a diffractively produced, secondary light beam out of the light guide in a direction of the primary light beam.

Abstract translation: 单向光栅背光包括在导光体的表面处的光导和衍射光栅。 光导引导光束，并且衍射光栅被配置为使用衍射耦合来耦合导出的光束的一部分，并且将耦合出的部分远离光导表面引导为主体处的主光束 角度方向。 单向光栅背光还包括导光表面和光导的相反表面之间的光导中的反射岛，以将衍射产生的二次光束在原始光的方向上反射地重新引导出导光体 光束。

公开(公告)号：WO2016111706A1

公开(公告)日：2016-07-14

申请号：PCT/US2015/010932

申请日：2015-01-10

Applicant: LEIA INC.

Inventor： FATTAL, David, A.

IPC: G02B6/42 ,  G02B6/00 ,  G02F1/13357

CPC classification number: G02B6/0056 ,  G02B6/0035 ,  G02B6/005 ,  G02B6/0055 ,  G02B6/42 ,  G02F1/133504 ,  G02F1/13362 ,  G02F1/292

Abstract: A polarization-mixing light guide includes a plate light guide and a polarization retarder within the plate light guide. The light guide is to guide a beam of light at a non-zero propagation angle. The light beam includes a first polarization component and a second polarization component. The polarization retarder is to redistribute the first and second polarization components of the guided light beam into predetermined combinations of the polarization components. The light guide is to preferentially scatter out a portion of the guided light beam having the first polarization component. A three-dimensional (3-D) electronic display includes an array of multibeam diffraction gratings at a surface of the plate light guide to preferentially couple out the first polarization component of the guided light beam as a plurality of light beams having different principal angular directions.

Abstract translation: 偏振混合光导包括平板光导和平板光导内的极化延迟器。 光导是以非零传播角度引导光束。 光束包括第一偏振分量和第二偏振分量。 偏振光延迟器将引导光束的第一和第二偏振分量重新分配成偏振分量的预定组合。 导光体优先散射出具有第一偏振分量的被引导光束的一部分。 三维（3-D）电子显示器包括在平板光导的表面处的多波束衍射光栅阵列，以优先耦合作为具有不同主角方向的多个光束的被引导光束的第一偏振分量 。

公开(公告)号：EP4241121A1

公开(公告)日：2023-09-13

申请号：EP21889856.7

申请日：2021-10-27

Applicant: LEIA Inc.

Inventor： FATTAL, David, A. ,  HOEKMAN, Thomas ,  MA, Ming

IPC: G02B6/00 ,  G02B30/33 ,  H04N13/32