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公开(公告)号：US09395544B2
公开(公告)日：2016-07-19
申请号：US14209995
申请日：2014-03-13
Applicant: Google Inc.
Inventor： Amber M. Luttmann , Ozan Cakmakci , Anurag Gupta
CPC classification number: G02B27/0172 , G02B27/017 , G02B2027/014 , G02B2027/0194 , G02F1/13718
Abstract: An eyepiece for a head wearable display includes a light guide component for guiding display light received at a peripheral location offset from a viewing region and emitting the display light along an eye-ward direction in the viewing region. The light guide component includes an input surface to receive the display light into the light guide component, an eye-ward facing side, a world facing side, a total internal reflection (“TIR”) portion disposed proximal to the input surface to guide the display light received through the input surface using TIR, and a partially reflective portion including a partially reflective element disposed over the eye-ward facing side and a switchable reflector disposed over the world facing side. The partially reflective portion is disposed to receive the display light from the TIR portion and to guide the display light via reflections off of the partially reflective element and the switchable reflector.
Abstract translation: 用于头戴式显示器的目镜包括导光部件，用于引导从观察区域偏移的周边位置处接收的显示光，并且沿着观察区域的朝向方向发射显示光。 导光部件包括用于将显示光接收到导光部件的输入表面，面向眼睛的侧面，面向世界的侧面，设置在输入表面附近的全内反射（“TIR”）部分，以引导 使用TIR显示通过输入表面接收的光，以及部分反射部分，其包括设置在面向眼睛的侧面上的部分反射元件和设置在面向世界的侧面上的可切换反射器。 所述部分反射部分设置成从所述TIR部分接收所述显示光并通过所述部分反射元件和所述可切换反射器的反射来引导所述显示光。
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公开(公告)号：US20160062120A1
公开(公告)日：2016-03-03
申请号：US14473578
申请日：2014-08-29
Applicant: Google Inc.
Inventor： Anurag Gupta , Amber M. Luttmann
CPC classification number: G02B27/0172 , G02B27/0093 , G02B27/01 , G02B27/0101 , G02B27/017 , G02B27/0176 , G02B2027/011 , G02B2027/0123 , G02B2027/0178 , G02B2027/0187 , H04N13/279
Abstract: An eyepiece body of an eyepiece includes an input lens positioned to couple display light into the eyepiece body along a forward propagation path, a concave end reflector disposed at an opposite end of the eyepiece body from the input lens to reflect the display light back along a reverse propagation path, and a viewing region including a partially reflective surface that redirects at least a portion of the display light traveling along the reverse propagation path out of an eye-ward side of the eyepiece body along an emission path. The partially reflective surface is obliquely angled relative to the eye-ward side and the concave end reflector is titled relative to a top or bottom surface of the eyepiece body to collectively cause the emission path of the display light to be oblique to a normal vector of the eye-ward side in two orthogonal dimensions.
Abstract translation: 目镜的目镜体包括输入透镜，其被设置为沿着正向传播路径将显示光耦合到目镜主体中，凹端反射器设置在目镜主体的与输入透镜相对的一端，以将显示光沿着 反向传播路径，以及包括部分反射面的观察区域，其将沿着反向传播路径行进的显示光的至少一部分沿着发射路径重定向到目镜体的眼区侧。 部分反射表面相对于眼睛侧倾斜成角度，并且凹端反射体相对于目镜体的顶表面或底表面标称，以共同地使显示光的发射路径倾斜于法向矢量 在两个正交的维度上的视野侧。
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公开(公告)号：US09184198B1
公开(公告)日：2015-11-10
申请号：US13772131
申请日：2013-02-20
Applicant: Google Inc.
Inventor： Xiaoyu Miao , Anurag Gupta , Roman Lewkow
IPC: H01L27/00 , H01L27/146 , H01L31/18
CPC classification number: H01L27/14647 , H01L27/14621 , H01L27/14625 , H01L27/14634
Abstract: A color sensitive image sensor includes first, second, and third image sensor layers vertically aligned in an image sensor stack. Each of the image sensor layers includes a pixel array oriented to generate image data in response to light incident on the image sensor stack and readout circuitry coupled to the pixel array to readout the image data. A first optical filter layer is disposed between the first image sensor layer and the second image sensor layer and has a first edge pass filter characteristic with a first cutoff wavelength. A second optical filter layer is disposed between the second image sensor layer and the third image sensor layer and has a second edge pass filter characteristic with a second cutoff wavelength offset from the first cutoff wavelength.
Abstract translation: 色感图像传感器包括在图像传感器堆叠中垂直对准的第一，第二和第三图像传感器层。 每个图像传感器层包括一个像素阵列，其被定向成响应于入射到图像传感器堆叠上的光而产生图像数据，读出电路耦合到像素阵列以读出图像数据。 第一光学滤光层设置在第一图像传感器层和第二图像传感器层之间，并且具有第一截止波长的第一边缘滤波器特性。 第二滤光器层设置在第二图像传感器层和第三图像传感器层之间，并且具有第二边缘滤波器特征，其具有偏离第一截止波长的第二截止波长。
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公开(公告)号：US20150260992A1
公开(公告)日：2015-09-17
申请号：US14209995
申请日：2014-03-13
Applicant: Google Inc.
Inventor： Amber M. Luttmann , Ozan Cakmakci , Anurag Gupta
IPC: G02B27/01
CPC classification number: G02B27/0172 , G02B27/017 , G02B2027/014 , G02B2027/0194 , G02F1/13718
Abstract: An eyepiece for a head wearable display includes a light guide component for guiding display light received at a peripheral location offset from a viewing region and emitting the display light along an eye-ward direction in the viewing region. The light guide component includes an input surface to receive the display light into the light guide component, an eye-ward facing side, a world facing side, a total internal reflection (“TIR”) portion disposed proximal to the input surface to guide the display light received through the input surface using TIR, and a partially reflective portion including a partially reflective element disposed over the eye-ward facing side and a switchable reflector disposed over the world facing side. The partially reflective portion is disposed to receive the display light from the TIR portion and to guide the display light via reflections off of the partially reflective element and the switchable reflector.
Abstract translation: 用于头戴式显示器的目镜包括导光部件，用于引导从观察区域偏移的周边位置处接收的显示光，并且沿着观察区域的朝向方向发射显示光。 导光部件包括用于将显示光接收到导光部件的输入表面，面向眼睛的侧面，面向世界的侧面，设置在输入表面附近的全内反射（“TIR”）部分，以引导 使用TIR显示通过输入表面接收的光，以及部分反射部分，其包括设置在面向眼睛的侧面上的部分反射元件和设置在面向世界的侧面上的可切换反射器。 所述部分反射部分设置成从所述TIR部分接收所述显示光并通过所述部分反射元件和所述可切换反射器的反射来引导所述显示光。
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公开(公告)号：US09036153B1
公开(公告)日：2015-05-19
申请号：US14015569
申请日：2013-08-30
Applicant: Google Inc.
Inventor： Anurag Gupta , Amber M. Luttmann , Michael R. Sears , Evan M. Richards
CPC classification number: G01N21/55
Abstract: An apparatus for testing the reflectivity of a material under test includes a rotating carriage, a light source, and a light detector. At least two sample units are mountable to the rotating carriage. Each sample unit includes a planar surface disposed under a portion of a hemispherical surface. The light source is mounted on a pivoting boom and generates light. The light detector is mounted to measure optical power of the light emitted from the light source and reflected from a selected one of the at least two sample units. The pivoting boom and the rotating carriage rotate through different angular positions to obtain reflectance signatures as a function of incident angles for the at least two sample units.
Abstract translation: 用于测试被测材料的反射率的装置包括旋转托架，光源和光检测器。 至少两个样品单元可安装到旋转的托架上。 每个样品单元包括设置在半球形表面的一部分下面的平面。 光源安装在枢转吊臂上并产生光。 安装光检测器以测量从光源发射并从所述至少两个采样单元中的所选一个反射的光的光功率。 枢转起重臂和旋转托架通过不同的角位置旋转，以获得作为至少两个采样单元的入射角的函数的反射特征。
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Patent Agency Ranking
公开(公告)号：US10126482B2
公开(公告)日：2018-11-13
申请号：US15220178
申请日：2016-07-26
Applicant: Google Inc.
Inventor： Evan M. Richards , Anurag Gupta , Ozan Cakmakci
IPC: F21V8/00 , G02B21/00 , G02B27/01 , G02B27/00 , G02B5/09 , G02B27/10 , G02B27/14 , B32B37/00 , B32B38/14
Abstract: A lightguide assembly including structures to provide for outcoupling of light from an internal reflection structure. In an embodiment, a lightguide assembly includes light transmissive bodies forming respective corrugations which are coupled to one another. Optical coatings are variously disposed between the respective corrugations, wherein the optical coatings provide for redirection of light from the lightguide assembly. In another embodiment, optical coatings are each applied to a respective one of alternate facets of a corrugation. Polymer film portions provide mechanical support for the optical coatings during application to the corrugation.
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公开(公告)号：US09933296B2
公开(公告)日：2018-04-03
申请号：US15352317
申请日：2016-11-15
Applicant: Google Inc.
Inventor： Anurag Gupta , Aveek Ravishekhar Purohit
CPC classification number: G01J1/0411 , G01J1/0266 , G01J1/44 , G02B3/0006 , G02B3/08 , G08B13/193
Abstract: A passive infrared motion detection sensor that includes a Fresnel focusing arrangement that creates at least a first infrared sensing region, a second infrared sensing region, and a third infrared sensing region, in which target detection in one or more infrared sensing regions is weighted to be distinguishable from target detection in remaining infrared sensing regions. The Fresnel focusing arrangement creates the weighted infrared sensing regions using a lenslet region, an optically opaque region and a plurality of extruded cylindrical lenslets that extend across a portion of both the lenslet region and the optically opaque region. The signal detection in at least the second weighted infrared sensing region, for example, an infrared sensing range between 6 and 10 feet, is weighted to easily distinguish between a pet within the second infrared sensing range and a person at any infrared sensing range.
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公开(公告)号：US09733477B2
公开(公告)日：2017-08-15
申请号：US14485414
申请日：2014-09-12
Applicant: Google Inc.
Inventor： Anurag Gupta
CPC classification number: G02B27/0172 , G02B5/30 , G02B27/0018 , G02B27/0101 , G02B27/017 , G02B27/283 , G02B2027/0121 , G02B2027/0123 , G02B2027/0178
Abstract: An eyepiece includes a first end for receiving display light, an end reflector, and a viewing region including a partially reflective surface to redirect at least a portion of the display light out of an eye-ward side of the eyepiece along an emission path. The partially reflective surface is obliquely angled to cause the emission path to have a first oblique angle in a first dimension relative to a first normal vector of the eye-ward side. The end reflector is tilted to cause the emission path to have a second oblique angle in a second dimension relative to the first normal vector of the eye-ward side. The first and second dimensions are orthogonal to each other.
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公开(公告)号：US09523853B1
公开(公告)日：2016-12-20
申请号：US14184915
申请日：2014-02-20
Applicant: Google Inc.
Inventor： Eliezer Peli , Anurag Gupta
CPC classification number: G02B27/017 , G02B27/0093 , G02B2027/0178 , G02B2027/0187
Abstract: A head mounted display (“HMD”) includes a display module that displays a primary viewing image at a focus distance. The display module also displays a focusing cue image at the focus distance to aid a user of the HMD in focusing on the primary viewing image at the focus distance.
Abstract translation: 头戴式显示器（“HMD”）包括在焦距处显示主要观看图像的显示模块。 显示模块还在聚焦距离处显示聚焦提示图像，以帮助HMD的用户聚焦在聚焦距离处的主观看图像。
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20.发明授权Smoke detector chamber architecture and related methods using two different wavelengths of light 有权烟雾探测器室结构和相关方法使用两种不同波长的光公开(公告)号：US09514623B1
公开(公告)日：2016-12-06
申请号：US14713975
申请日：2015-05-15
Applicant: Google Inc.
Inventor： Carlos Urrutia , Adam Mittleman , Andrew Goldenson , Nicholas Webb , Mathias Schmidt , Anurag Gupta
CPC classification number: G08B17/10 , G08B17/107
Abstract: Various arrangements for using multiple wavelengths of electromagnetic radiation to detect smoke by a smoke detector are present. Multiple modes of the smoke detector may be used in which a first wavelength of electromagnetic radiation is emitted into a smoke chamber while a second electromagnetic radiation emitter is disabled, a period of time is waited, and a second wavelength of electromagnetic radiation is emitted into the smoke chamber while the first emitter is disabled. Depending on the mode of the smoke detector, the period of wait time may be varied.
Abstract translation: 存在使用多个波长的电磁辐射来检测烟雾的各种布置。 可以使用烟雾探测器的多种模式，其中电磁辐射的第一波长被发射到烟雾室中，而第二电磁辐射发射器被禁用，等待一段时间，并且第二波长的电磁辐射被发射到 烟雾室，而第一个发射器被禁用。 根据烟雾探测器的模式，等待时间可能会有所不同。
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