公开(公告)号：US20150241619A1

公开(公告)日：2015-08-27

申请号：US14188411

申请日：2014-02-24

Applicant: Google Inc.

Inventor： Evan M. Richards ,  Anurag Gupta ,  Ozan Cakmakci

IPC: F21V8/00 ,  G02B27/01

CPC classification number: G02B6/0038 ,  B32B37/00 ,  B32B38/14 ,  G02B5/09 ,  G02B6/0015 ,  G02B6/0026 ,  G02B6/0035 ,  G02B6/0045 ,  G02B6/0065 ,  G02B27/0081 ,  G02B27/0172 ,  G02B27/1073 ,  G02B27/141 ,  G02B2027/0118 ,  Y10T29/49885

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.

Abstract translation: 一种光导组件，包括用于提供来自内部反射结构的光的耦合的结构。 在一个实施例中，光导组件包括形成彼此耦合的相应波纹的透光体。 光学涂层被各种布置在相应的波纹之间，其中光学涂层提供来自光导组件的光的重定向。 在另一个实施例中，光学涂层各自被施加到波纹的相应的一个备选面。 聚合物膜部分在应用于波纹期间为光学涂层提供机械支撑。

公开(公告)号：US08947783B2

公开(公告)日：2015-02-03

申请号：US13732688

申请日：2013-01-02

Applicant: Google Inc.

Inventor： Anurag Gupta ,  Chia-Jean Wang

IPC: G02B27/14 ,  G02B27/01

CPC classification number: G02B5/18 ,  G02B27/0172 ,  G02B27/1086 ,  G02B27/141 ,  G02B2027/0112 ,  G02B2027/0178

Abstract: An optical combiner includes a first, second, and third color combiner layer (“CCL”). The first CCL includes a first diffractive grating coated with a first filter configured to reflect a first color light and pass a second and a third color light. The second CCL includes a second diffractive grating coated with a second filter configured to reflect the second color light and pass the third color light. The third CCL includes a third diffractive grating coated with a third filter configured to partially reflect visible light. The diffractive gratings are each embedded in an index matched material and are angle-tuned diffractive gratings configured to receive image light at an angle and respectively reflect the first, second, and third color light in the image light at an order of diffraction that directs the light to an eye of a user.

Abstract translation: 光合并器包括第一，第二和第三颜色组合器层（“CCL”）。 第一CCL包括涂覆有第一滤光器的第一衍射光栅，第一滤光器被配置为反射第一颜色光并通过第二和第三颜色光。 第二CCL包括涂覆有第二滤光器的第二衍射光栅，第二滤光器被配置为反射第二色光并通过第三色光。 第三CCL包括涂覆有被部分地反射可见光的第三滤光器的第三衍射光栅。 衍射光栅各自嵌入索引匹配材料中，并且是角度调节的衍射光栅，被配置为以一定角度接收图像光，并以衍射级分别反射图像光中的第一，第二和第三色光， 照亮用户的眼睛。

公开(公告)号：US20140092461A1

公开(公告)日：2014-04-03

申请号：US13631034

申请日：2012-09-28

Applicant: Google Inc.

Inventor： Mark B. Spitzer ,  Anurag Gupta

IPC: G02B27/01 ,  B05D5/06 ,  B23P25/00 ,  G02F1/03

CPC classification number: G02F1/03 ,  G02B5/23 ,  G02B5/30 ,  G02B27/0101 ,  G02B27/0172 ,  G02B2027/0118 ,  G02B2027/0178 ,  Y10T29/49885

Abstract: A head mounted display (HMD) includes a display module for generating CGI light, an eyepiece, and a frame assembly to support the eyepiece in front of an eye of the user. The eyepiece includes a viewing region to emit the CGI light along an eye-ward direction, an input end peripherally located from the viewing region and optically coupled to receive the CGI light into the eyepiece from the display module, and light bending optics to redirect the CGI light. The eyepiece further includes an ambient scene side through which ambient scene light is received into the eyepiece and an eye-ward side opposite the ambient scene side out of which the ambient scene light and the CGI light are passed along the eye-ward direction. A photo-chromic coating is disposed on the ambient scene and eye-ward sides.

Abstract translation: 头戴式显示器（HMD）包括用于产生CGI灯的显示模块，目镜和框架组件，以在使用者的眼睛前面支撑目镜。 目镜包括一个观察区域，用于沿着视觉方向发射CGI光，外围位于观察区域的输入端，并且被光耦合以将CGI光从显示模块接收到目镜中;以及光弯曲光学器件，用于重定向 CGI灯。 目镜进一步包括环境场景侧，环境场景光通过该环境场景侧被接收到目镜中，并且与环境场景侧相对的视野侧，环境场景光和CGI光沿着眼睛方向通过。 在环境场景和眼睛两侧设置光致变色涂层。

公开(公告)号：US10054608B2

公开(公告)日：2018-08-21

申请号：US15158918

申请日：2016-05-19

Applicant: Google Inc.

Inventor： Andrew Goldenson ,  Anurag Gupta

IPC: G01P13/00 ,  G01V8/10

CPC classification number: G01P13/00 ,  G01V8/10

Abstract: Methods and apparatus relating to a photodiode-augmented infrared (IR) motion sensor are provided. The IR motion sensor can be used to sense mid-IR range radiation emitting from a person. Within the IR motion sensor, incident mid-IR range radiation impinges on an IR sensing element situated behind a Fresnel lens. Thus, when the person crosses a particular region in the range of the IR motion sensor, the IR sensing element detects a change in radiation signature, and can subsequently notify another system, such as a security system, of the change. The IR motion sensor also includes an ambient light-sensing element configured to provide information used to perform a quality check, such as to rule out “false positive” outputs, on information output from the IR sensing element.

公开(公告)号：US09903814B2

公开(公告)日：2018-02-27

申请号：US14986452

申请日：2015-12-31

Applicant: Google Inc.

Inventor： Daniel Adam Warren ,  Ian C. Smith ,  Morakinyo John Aina ,  Andrew W. Goldenson ,  Dietrich Ho ,  Anurag Gupta

IPC: G08B21/00 ,  G01N21/53 ,  G01K7/00 ,  G08B17/107

CPC classification number: G01N21/53 ,  G01K7/00 ,  G01K7/01 ,  G01K2217/00 ,  G01N2201/062 ,  G01N2201/1211 ,  G08B17/107

Abstract: Apparatus, systems, methods, and related computer program products for handling temperature variation with optoelectronic components of a hazard detection system are described herein. A power characteristic of an optoelectronic component of the hazard detection system may be used to determine a temperature of an environment of the hazard detection system. A power characteristic of an optoelectronic component of the hazard detection system may be used to determine a smoke condition of an environment of the hazard detection system. Optoelectronic components of the hazard detection system may be optically coupled to determine a smoke condition of an environment of the hazard detection system. Multiple optoelectronics of the hazard detection system may be operative to detect forward scatter and back scatter of one or more types of light to determine a characteristic of a hazard particle.

公开(公告)号：US09709797B2

公开(公告)日：2017-07-18

申请号：US14736053

申请日：2015-06-10

Applicant: Google Inc.

Inventor： Ozan Cakmakci ,  Amber M. Luttmann ,  Anurag Gupta

IPC: G02B27/14 ,  G02B25/00 ,  G02B27/01 ,  G02B27/00 ,  G02B9/02

CPC classification number: G02B25/001 ,  G02B9/02 ,  G02B27/0025 ,  G02B27/0101 ,  G02B27/017 ,  G02B27/0172 ,  G02B2027/0132

Abstract: An eyepiece for a head mounted display (“HMD”) includes a doublet lens that includes a first optical element and a second optical element. The first optical element has an entry surface to receive the display light from a micro display and a first coupling surface. The second optical element has an exit surface and a second coupling surface paired to the first coupling surface of the first optical element. The doublet lens is configured to direct the display light through the first coupling surface, the second coupling surface, and through the exit surface.

公开(公告)号：US09500517B2

公开(公告)日：2016-11-22

申请号：US14586326

申请日：2014-12-30

Applicant: Google Inc.

Inventor： Anurag Gupta ,  Aveek Ravishekhar Purohit

IPC: G01J1/04 ,  G02B3/08 ,  G02B3/00 ,  G01J1/44 ,  G01J1/02

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.

Abstract translation: 一种被动红外运动检测传感器，其包括菲涅尔聚焦装置，其产生至少第一红外感测区域，第二红外感测区域和第三红外感测区域，其中一个或多个红外感测区域中的目标检测被加权为 与剩余的红外感测区域中的目标检测区分开。 菲涅尔聚焦装置使用透镜区域，光学不透明区域和延伸穿过小透镜区域和光学不透明区域的一部分的多个挤出的圆柱形小透镜来产生加权的红外感测区域。 在至少第二加权红外感测区域中的信号检测，例如6至10英尺之间的红外感测范围被加权，以便容易地区分第二红外线感测范围内的宠物和任何红外线感测范围内的人。

公开(公告)号：US09429756B1

公开(公告)日：2016-08-30

申请号：US13928725

申请日：2013-06-27

Applicant: Google Inc.

Inventor： Ozan Cakmakci ,  Anurag Gupta

IPC: G02B27/14 ,  G09G5/00 ,  G02B27/01

CPC classification number: G02B27/0172 ,  G02B17/06 ,  G02B2027/0147 ,  G02B2027/0196

Abstract: An optical apparatus includes a transparent microdisplay and a curved mirror. The transparent microdisplay has an array of self-illuminating emitters configured to emit image light propagating in an external direction. The curved mirror is positioned to reflect the image light toward an eye-ward side of the optical apparatus. A first curvature of the curved mirror has an optical power configured to focus the image light reflected by the curved mirror within an eyebox sized area. The transparent microdisplay is disposed between the curved mirror and the eyebox sized area.

Abstract translation: 光学装置包括透明微显示器和曲面镜。 透明微显示器具有配置成发射沿外部方向传播的图像光的自发光发射器的阵列。 弯曲的镜子被定位成将图像光朝向光学设备的眼睛侧反射。 曲面镜的第一曲率具有配置成将由曲面镜反射的图像光聚焦在眼框尺寸区域内的光焦度。 透明微显示器设置在弯曲镜和眼框尺寸区域之间。

公开(公告)号：US09411013B2

公开(公告)日：2016-08-09

申请号：US14181086

申请日：2014-02-14

Applicant: Google Inc.

Inventor： Evan M. Richards ,  Anurag Gupta

IPC: G01N21/88 ,  G01R31/308 ,  G02F1/13 ,  G01N21/95

CPC classification number: G01R31/308 ,  G01N2021/9513 ,  G02F1/1309

Abstract: A test apparatus includes a display sled having a mount for holding a display under test (“DUT”). The display sled is supported by a frame and moves between a test position and a load position. A lamp source is supported by the frame and positioned to illuminate the DUT when the display sled is in the test position. A measurement camera is supported by the frame and positioned to capture one or more test images output by the DUT when the DUT is illuminated by the lamp source. Driver circuitry generates the one or more test images to drive the DUT. An electrical interconnect establishes an electrical connection between the driver circuitry and the DUT when the display sled is in the test position. An actuator is coupled to physically manipulate the electrical interconnect to engage or disengage the electrical connection between the driver circuitry and the DUT.

Abstract translation: 测试装置包括具有用于保持被测显示器（“DUT”）的安装座的显示器滑板。 显示屏雪橇由框架支撑，并在测试位置和加载位置之间移动。 灯源由框架支撑并定位成当显示器滑轨处于测试位置时照亮DUT。 测量相机由框架支撑并且被定位成当DUT被灯源点亮时捕获由DUT输出的一个或多个测试图像。 驱动器电路产生一个或多个测试图像来驱动DUT。 当显示器滑轨处于测试位置时，电气互连在驱动器电路和DUT之间建立电连接。 致动器被耦合以物理地操纵电互连以接合或分离驱动器电路和DUT之间的电连接。

公开(公告)号：US09389422B1

公开(公告)日：2016-07-12

申请号：US14139277

申请日：2013-12-23

Applicant: Google Inc.

Inventor： Ozan Cakmakci ,  Anurag Gupta

IPC: G02B27/14 ,  G02B27/01

CPC classification number: G02B27/0172 ,  G02B1/18 ,  G02B2027/0174 ,  G02B2027/0178

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 in the viewing region. The light guide component includes an input surface oriented to receive the display light into the light guide component, an eye-ward facing side having a first curvature, a world facing side having a second curvature, a total internal reflection (“TIR”) portion disposed proximal to the input surface to guide the display light using TIR, and a partially reflective portion disposed distal to the input surface to receive the display light from the TIR portion and guide the display light to the viewing region using partial reflections. The first and second curvatures of the eye-ward and world facing sides together operate to adjust the vergence of the display light to virtually displace an image.

Abstract translation: 用于头戴式显示器的目镜包括导光部件，用于引导在观察区域偏移的周边位置处接收的显示光并将观察区域发射出来。 导光部件包括被定向以将显示光接收到导光部件中的输入表面，具有第一曲率的面向眼的侧面，具有第二曲率的面向世界的侧面，全内反射（“TIR”）部分 设置在输入表面附近以引导使用TIR的显示光，以及设置在输入表面的远侧的部分反射部分，以接收来自TIR部分的显示光，并使用部分反射将显示光引导到观看区域。 眼睛和世界面对的第一和第二曲率一起操作以调节显示光的聚光度以实际上使图像移位。