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1. 发明授权

US08885997B2 NED polarization system for wavelength pass-through 有权
标题翻译：用于波长通过的NED偏振系统
公开(公告)号：US08885997B2
公开(公告)日：2014-11-11
申请号：US13601727
申请日：2012-08-31
申请人： Ian A. Nguyen , Tapani Levola , David D. Bohn
发明人： Ian A. Nguyen , Tapani Levola , David D. Bohn
IPC分类号： G02B6/34 , G02B5/18 , G02B27/00
CPC分类号： G02B5/1814 , G02B6/0076 , G02B27/0081 , G02B27/0172 , G02B2027/0112
摘要： A system and method are disclosed for providing uniform color distribution of light emitted from a light source to an eye box in a near eye display (NED). An example of the system and method uses an optical element including two or more waveguides optimized to different colors of the visible light spectrum. The optical element further includes one or more polarization state generators for controlling the polarization of light incident on the waveguides to facilitate coupling of light into a matched waveguide, and to impede coupling of light into unmatched waveguides.
摘要翻译：公开了一种用于将从光源发射的光均匀分布到近眼显示器（NED）中的眼箱的系统和方法。该系统和方法的示例使用包括针对可见光光谱的不同颜色优化的两个或更多个波导的光学元件。光学元件还包括一个或多个偏振状态发生器，用于控制入射在波导上的光的偏振，以便于将光耦合到匹配的波导中，并阻止光耦合到不匹配的波导中。

2. 发明申请

US20140168260A1 WAVEGUIDE SPACERS WITHIN AN NED DEVICE 审中-公开
标题翻译：在NED设备中的波形间隔
公开(公告)号：US20140168260A1
公开(公告)日：2014-06-19
申请号：US13713508
申请日：2012-12-13
申请人： Paul M. O'Brien , Ian A. Nguyen
发明人： Paul M. O'Brien , Ian A. Nguyen
IPC分类号： G02B6/00 , G09G5/377
CPC分类号： G09G5/377 , G02B6/00 , G02B6/0016 , G02B6/0035 , G02B6/0076 , G02B27/0172 , G02B27/4205 , G02B2027/0125 , G02B2027/0178 , G02C7/086 , G02C2202/16
摘要： A system is disclosed for maintaining the spacing between waveguides in an optical element of a near eye display. Spacing is maintained with spacer elements mounted between adjacent waveguides in the optical element.
摘要翻译：公开了一种用于维持近眼显示器的光学元件中的波导之间的间隔的系统。通过将间隔元件安装在光学元件中的相邻波导之间来保持间隔。

3. 发明申请

US20150125109A1 GRATING CONFIGURATIONS FOR A TILED WAVEGUIDE DISPLAY 有权
标题翻译：用于倾斜波形显示器的磨砂配置
公开(公告)号：US20150125109A1
公开(公告)日：2015-05-07
申请号：US14073746
申请日：2013-11-06
申请人： Steve J. Robbins , Ian A. Nguyen
发明人： Steve J. Robbins , Ian A. Nguyen
IPC分类号： G02B27/42
CPC分类号： G02B27/4205 , G02B5/1828 , G02B27/01 , G02B27/0172 , G02B2027/0123
摘要： Grating configurations are described for creating time sequenced field of view (FOV) tiles for a waveguide display. Pairings of non-output diffraction gratings and output diffraction gratings are activated to create a number of FOV tiles in a time sequence, for example in a frame update period for the image. Examples of a non-output grating are an input grating and a fold grating. For a set of at least three gratings used to make the pairings, each non-output grating is paired with each output grating. The number of pairings, and so the number of FOV tiles, is equal to a product of the total number of non-output gratings and the total number of output gratings. At least one diffraction grating in the pairing is an active pairing. Also described is a multiplexed diffraction grating including multiplexed K-vectors which increases the overall angular bandwidth for both incidence and diffraction.
摘要翻译：描述光栅配置用于为波导显示器创建时间序列视场（FOV）平铺。非输出衍射光栅和输出衍射光栅的配对被激活以在时间序列中创建多个FOV瓦片，例如在图像的帧更新周期中。非输出光栅的示例是输入光栅和折叠光栅。对于一组用于进行配对的至少三个光栅，每个非输出光栅与每个输出光栅配对。配对的数量以及FOV瓦片的数量等于非输出光栅总数和输出光栅总数的乘积。配对中的至少一个衍射光栅是有源配对。还描述了包括多路复用K向量的复用衍射光栅，其增加了入射和衍射两者的总角带宽。

4. 发明申请

US20160085300A1 WAVEGUIDE EYE TRACKING EMPLOYING SWITCHABLE DIFFRACTION GRATINGS 有权
标题翻译：波导眼睛跟踪使用可切换衍射光栅
公开(公告)号：US20160085300A1
公开(公告)日：2016-03-24
申请号：US14495273
申请日：2014-09-24
申请人： Steven Robbins , Ian A. Nguyen
发明人： Steven Robbins , Ian A. Nguyen
IPC分类号： G06F3/01 , G02B27/01 , G06T19/00 , H04N5/33 , H04N5/232 , G02B27/00 , G02F1/29
CPC分类号： G02B27/0172 , A61B3/005 , A61B3/113 , G02B13/14 , G02B27/0093 , G02B27/0101 , G02B2027/0138 , G02B2027/014 , G02B2027/0178 , G02F1/292 , G06F3/013 , G06T19/006 , H04N5/23212 , H04N5/33
摘要： A transparent waveguide, for use in tracking an eye illuminated by infrared light, includes an input-coupler and an output-coupler. The input-coupler includes a stack of electronically switchable diffractive gratings arranged parallel to one another, each of which has a respective lens power that causes each of the gratings in the stack to have a different focal length. Each grating, when turned on, couples received infrared light into the waveguide. A sensor images an eye in dependence on infrared light beams that exit the waveguide at the output-coupler. Images of an eye, obtained using the sensor, are analyzed to determine which one of the electronically switchable diffractive gratings, when turned on, provides a best focused image of the eye or portion thereof. The one of the electronically switchable diffractive gratings, which provides the best focused image of the eye, is used for imaging the eye during eye tracking.
摘要翻译：用于跟踪由红外光照射的眼睛的透明波导包括输入耦合器和输出耦合器。输入耦合器包括彼此平行布置的电子可切换衍射光栅的堆叠，每个衍射光栅具有相应的透镜功率，其使堆叠中的每个光栅具有不同的焦距。每个光栅在接通时将接收到的红外光耦合到波导中。传感器根据在输出耦合器处离开波导的红外光束对眼睛进行成像。分析使用传感器获得的眼睛的图像，以确定何时电子可切换衍射光栅在打开时提供眼睛或其部分的最佳聚焦图像。提供眼睛最佳聚焦图像的电子可切换衍射光栅之一被用于眼睛跟踪期间的眼睛成像。

5. 发明申请

US20160041384A1 WAVEGUIDE EYE TRACKING EMPLOYING VOLUME BRAGG GRATING 有权
标题翻译：波形眼睛跟踪使用体积BRAGG GRATING
公开(公告)号：US20160041384A1
公开(公告)日：2016-02-11
申请号：US14456512
申请日：2014-08-11
申请人： Steven Robbins , Ian A. Nguyen , Xinye Lou
发明人： Steven Robbins , Ian A. Nguyen , Xinye Lou
IPC分类号： G02B27/00 , G06F3/01 , G02B27/01
CPC分类号： G02B27/0093 , G02B5/18 , G02B27/017 , G02B27/0172 , G06F3/013
摘要： A transparent waveguide, which is for use in tracking an eye that is illuminated by infrared light having an infrared wavelength, includes a volume Bragg grating type of input-coupler adapted to receive infrared light having the infrared wavelength and couple the received infrared light into the waveguide. The volume Bragg grating includes a lower boundary and an upper boundary that is closer to the output-coupler than the lower boundary. A k-vector angle of the volume Bragg grating at the lower boundary is greater than a k-vector angle at the upper boundary, with k-vector angles of the volume Bragg grating between the lower and upper boundaries gradually decreasing as distances decrease between grating planes of the volume Bragg grating and the upper boundary. Additionally, the volume Bragg grating preferably has an angular bandwidth that is no greater than 5 degrees.
摘要翻译：用于跟踪由具有红外波长的红外光照射的眼睛的透明波导包括体积布拉格光栅类型的输入耦合器，其适于接收具有红外波长的红外光并将接收到的红外光耦合到波导。体积布拉格光栅包括比下边界更靠近输出耦合器的下边界和上边界。下边界体积布拉格光栅的k向量角大于上边界的k向量角，下边界和上边界之间的体积布拉格光栅的k向量角随着光栅间距的减小而逐渐减小体积布拉格光栅的平面和上边界。另外，体积布拉格光栅优选具有不大于5度的角带宽。

6. 发明申请

US20140064655A1 NED POLARIZATION SYSTEM FOR WAVELENGTH PASS-THROUGH 有权
标题翻译：用于波长通过的NED极化系统
公开(公告)号：US20140064655A1
公开(公告)日：2014-03-06
申请号：US13601727
申请日：2012-08-31
申请人： Ian A. Nguyen , Tapani Levola , David D. Bohn
发明人： Ian A. Nguyen , Tapani Levola , David D. Bohn
IPC分类号： G02B6/26
CPC分类号： G02B5/1814 , G02B6/0076 , G02B27/0081 , G02B27/0172 , G02B2027/0112
摘要： A system and method are disclosed for providing uniform color distribution of light emitted from a light source to an eye box in a near eye display (NED). An example of the system and method uses an optical element including two or more waveguides optimized to different colors of the visible light spectrum. The optical element further includes one or more polarization state generators for controlling the polarization of light incident on the waveguides to facilitate coupling of light into a matched waveguide, and to impede coupling of light into unmatched waveguides.
摘要翻译：公开了一种用于将从光源发射的光均匀分布到近眼显示器（NED）中的眼箱的系统和方法。该系统和方法的示例使用包括针对可见光光谱的不同颜色优化的两个或更多个波导的光学元件。光学元件还包括一个或多个偏振状态发生器，用于控制入射在波导上的光的偏振，以便于将光耦合到匹配的波导中，并阻止光耦合到不匹配的波导中。

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