公开(公告)号：US09280005B2

公开(公告)日：2016-03-08

申请号：US14243799

申请日：2014-04-02

Applicant: Google Inc.

Inventor： Mark B. Spitzer ,  Anurag Gupta

IPC: G02F1/03 ,  G02B5/30 ,  G02B5/23 ,  G02B27/01

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

Abstract: An eyepiece includes a viewing region to emit display light out of the eyepiece along an eye-ward direction, an input end peripherally located from the viewing region and configured to receive the display light into the eyepiece, one or more optical elements positioned to direct the display light received into the eyepiece out of the viewing region along the eye-ward direction, a first side through which ambient scene light is received into the eyepiece, a second side out of which the ambient scene light and the display light are passed along the eye-ward direction, and a photo-chromic coating disposed on the first side and the second side, the photo-chromic coating to darken in the presence of UV light.

Abstract translation: 目镜包括：观察区域，用于沿着眼睛方向从目镜发射出显示光;输入端，其外围地位于观察区域，并被配置为将显示光接收到目镜中;一个或多个光学元件，定位成引导 将沿着眼睛方向的观察区域中接收到目镜中的光，将环境场景光接收到目镜中的第一侧，环境场景光和显示光沿着该第二侧通过的第二侧 眼睛方向，以及设置在第一侧和第二侧的光致变色涂层，光致变色涂层在有紫外光的情况下变暗。

公开(公告)号：US20150277095A1

公开(公告)日：2015-10-01

申请号：US14736053

申请日：2015-06-10

Applicant: Google Inc.

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

IPC: G02B25/00 ,  G02B27/01

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.

Abstract translation: 用于头戴式显示器（“HMD”）的目镜包括包括第一光学元件和第二光学元件的双透镜。 第一光学元件具有入口表面以从微显示器和第一耦合表面接收显示光。 第二光学元件具有与第一光学元件的第一耦合表面成对的出射表面和第二耦合表面。 双重透镜被配置为将显示光引导通过第一耦合表面，第二耦合表面，并且通过出射表面。

公开(公告)号：US20150234006A1

公开(公告)日：2015-08-20

申请号：US14181086

申请日：2014-02-14

Applicant: Google Inc.

Inventor： Evan M. Richards ,  Anurag Gupta

IPC: G01R31/308 ,  G02F1/13

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：US20150233824A1

公开(公告)日：2015-08-20

申请号：US14181083

申请日：2014-02-14

Applicant: Google Inc.

Inventor： Evan M. Richards ,  Anurag Gupta

IPC: G01N21/59 ,  G01N21/55 ,  G01N21/21

CPC classification number: G01N21/59

Abstract: An apparatus for testing transmittance includes a sample unit to position a material under test. The material under test is disposed between respective flat surfaces of a first mount and a second mount, which are positioned in the sample unit for a test round. The sample unit defines a first volume and a second volume, wherein arc shapes, variously formed by respective surfaces of the first and second volume, conform to an imaginary circle. During the test round, a rotation unit successively changes an angular position of the MUT relative to a light source. A light detector receives light from the light source which has been transmitted through the first volume, the MUT and the second volume. Based on the received light, a transmittance signature of the MUT is determined for a range of incidence angles.

Abstract translation: 用于测试透射率的装置包括用于定位被测材料的样品单元。 所测试的材料设置在第一安装件和第二安装件的相应的平坦表面之间，第一安装件和第二安装件位于样品单元中以进行测试。 样品单元限定第一体积和第二体积，其中由第一和第二体积的相应表面各种形成的弧形符合假想圆。 在测试周期中，旋转单元相继地改变MUT相对于光源的角位置。 光检测器接收来自已经透过第一卷，MUT和第二卷的光源的光。 基于所接收的光，对于入射角的范围确定MUT的透射特征。

公开(公告)号：US09086569B1

公开(公告)日：2015-07-21

申请号：US14173625

申请日：2014-02-05

Applicant: Google Inc.

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

IPC: G02B27/01

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, a second optical element, and a reflecting element. The first optical element has an entry surface to receive the display light from a micro display and a first coupling surface disposed opposite the entry surface. The first optical element has a first index of refraction and a first Abbe number. 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 second optical element has approximately the first index of refraction and a second Abbe number different from the first Abbe number. The doublet lens and the reflecting element are configured to direct the display light through the entry surface, the first coupling surface, the second coupling surface, off the reflecting element, and through the exit surface.

Abstract translation: 用于头戴式显示器（“HMD”）的目镜包括包括第一光学元件，第二光学元件和反射元件的双透镜。 第一光学元件具有入口表面以接收来自微显示器的显示光和与入口表面相对设置的第一耦合表面。 第一光学元件具有第一折射率和第一阿贝数。 第二光学元件具有与第一光学元件的第一耦合表面成对的出射表面和第二耦合表面。 第二光学元件具有大约第一折射率和与第一阿贝数不同的第二阿贝数。 双重透镜和反射元件构造成将显示光引导通过入射表面，第一耦合表面，第二耦合表面，离开反射元件，并通过出射表面。

公开(公告)号：US20150177519A1

公开(公告)日：2015-06-25

申请号：US14135284

申请日：2013-12-19

Applicant: Google Inc.

Inventor： Ozan Cakmakci ,  Anurag Gupta ,  Oscar A. Martinez

IPC: G02B27/01

CPC classification number: G02B27/0172 ,  G02B1/18 ,  G02B5/30 ,  G02B27/144 ,  G02B27/283 ,  G02B2027/0118 ,  G02B2027/0123

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 oriented to receive the display light into the light guide component, an eye-ward facing surface having a reflection portion and a viewing portion, a folding surface oriented to reflect the display light received through the input surface to the reflection portion of the eye-ward facing surface, and a first interface surface oriented to receive the display light reflected from the reflection portion of the eye-ward facing surface. A partially reflective layer is disposed on the first interface surface in the viewing region to reflect the display light along the eye-ward direction through viewing portion of the eye-ward facing surface.

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。 导光部件包括被定向以将显示光接收到导光部件中的输入面，具有反射部分和观察部分的面向眼睛的表面，被定向成反射通过输入表面接收的显示光的折叠表面 面向眼睛的表面的反射部分和被定向成接收从面向眼睛的表面的反射部分反射的显示光的第一界面。 部分反射层设置在观察区域的第一界面上，以便通过眼睛朝向表面的观察部分沿着眼睛方向反射显示光。

公开(公告)号：US20150002941A1

公开(公告)日：2015-01-01

申请号：US14485414

申请日：2014-09-12

Applicant: Google Inc.

Inventor： Anurag Gupta

IPC: G02B27/01 ,  G02B27/28 ,  G02B27/00

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.

Abstract translation: 目镜包括用于接收显示光的第一端，端部反射器和包括部分反射表面的观察区域，以将显示光的至少一部分沿着发射路径重新定向到目镜的眼睛侧。 部分反射表面倾斜成角度，以使得发射路径相对于眼睛侧的第一法线向量在第一维度上具有第一倾斜角。 端部反射器倾斜以使得发射路径相对于眼睛侧的第一法线向量在第二维度上具有第二倾斜角度。 第一和第二尺寸彼此正交。

公开(公告)号：US08867139B2

公开(公告)日：2014-10-21

申请号：US13714171

申请日：2012-12-13

Applicant: Google Inc.

Inventor： Anurag Gupta

IPC: G02B27/14 ,  G02B27/01 ,  G02B5/30

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 display module for providing display light, a concave 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 with an offset from 45 degrees relative to the eye-ward side to cause the emission path to have a first oblique angle in a horizontal dimension relative to a first normal vector of the eye-ward side. The concave end reflector is tilted such that a second normal vector from a center point of the concave end reflector is obliquely angled relative to a top or bottom surface of the eyepiece to cause the emission path to have a second oblique angle in a vertical dimension relative to the first normal vector of the eye-ward side.

Abstract translation: 目镜包括用于提供显示灯的显示模块，凹端反射器和包括部分反射表面的观察区域，以将显示光的至少一部分沿着发射路径重新定向到目镜的眼睛侧。 部分反射表面相对于眼区侧向偏斜45度倾斜成角度，以使得发射路径在相对于眼区侧的第一法线向量的水平方向上具有第一倾斜角。 凹端反射器倾斜使得来自凹端反射器的中心点的第二法向矢量相对于目镜的顶表面或底表面倾斜地倾斜，以使得发射路径在垂直方向上相对于第二倾斜角度 到眼病区的第一个法线矢量。

公开(公告)号：US20140153103A1

公开(公告)日：2014-06-05

申请号：US13714171

申请日：2012-12-13

Applicant: Google Inc.

Inventor： Anurag Gupta

IPC: G02B27/01

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 display module for providing display light, a concave 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 with an offset from 45 degrees relative to the eye-ward side to cause the emission path to have a first oblique angle in a horizontal dimension relative to a first normal vector of the eye-ward side. The concave end reflector is tilted such that a second normal vector from a center point of the concave end reflector is obliquely angled relative to a top or bottom surface of the eyepiece to cause the emission path to have a second oblique angle in a vertical dimension relative to the first normal vector of the eye-ward side.

Abstract translation: 目镜包括用于提供显示灯的显示模块，凹端反射器和包括部分反射表面的观察区域，以将显示光的至少一部分沿着发射路径重新定向到目镜的眼睛侧。 部分反射表面相对于眼区侧向偏斜45度倾斜成角度，以使得发射路径在相对于眼区侧的第一法线向量的水平方向上具有第一倾斜角。 凹端反射器倾斜使得来自凹端反射器的中心点的第二法向矢量相对于目镜的顶表面或底表面倾斜地倾斜，以使得发射路径在垂直方向上相对于第二倾斜角度 到眼病区的第一个法线矢量。

公开(公告)号：US08724206B2

公开(公告)日：2014-05-13

申请号：US13631034

申请日：2012-09-28

Applicant: Google Inc.

Inventor： Mark B. Spitzer ,  Anurag Gupta

IPC: 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。