公开(公告)号：US20170053508A1

公开(公告)日：2017-02-23

申请号：US15336399

申请日：2016-10-27

Applicant: Google Inc.

Inventor： Carlos Urrutia ,  Adam Mittleman ,  Andrew Goldenson ,  Nicholas Webb ,  Mathias Schmidt ,  Anurag Gupta

IPC: G08B17/10

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。

公开(公告)号：US20160357018A1

公开(公告)日：2016-12-08

申请号：US15239617

申请日：2016-08-17

Applicant: Google Inc.

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

IPC: G02B27/01 ,  G02B1/18

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 and emitting the display light at a viewing region. The light guide component includes an eye-ward facing surface having a reflection portion and a viewing portion, a folding surface oriented to reflect the display light received into the light guide component 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 through viewing portion of the eye-ward facing surface.

Abstract translation: 用于头戴式显示器的目镜包括用于引导在周边位置处接收的显示光并在显示区域发射显示光的导光部件。 导光部件包括具有反射部分和观察部分的面向眼睛的表面，折射表面，其被定向成将接收到导光部件中的显示光反射到面向眼睛的表面的反射部分，第一 界面表面取向为接收从面向眼睛的表面的反射部分反射的显示光。 部分反射层设置在观察区域的第一界面上，以将显示光反射到面向眼睛的表面的观察部分。

公开(公告)号：US20160334562A1

公开(公告)日：2016-11-17

申请号：US15220178

申请日：2016-07-26

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.

公开(公告)号：US09389423B2

公开(公告)日：2016-07-12

申请号：US14204993

申请日：2014-03-11

Applicant: Google Inc.

Inventor： Ramesh C. Bhardwaj ,  Taisup Hwang ,  Anurag Gupta ,  Simon R. Prakash

IPC: G02B27/01 ,  G09G5/00

CPC classification number: G02B27/0172 ,  G02B27/017 ,  G02B2027/014 ,  G02B2027/0143

Abstract: An apparatus for providing adjustable transparency to an optical element of a head wearable display includes an electro-chromic film disposed across the optical element to adjust a transparency of the optical element to ambient light and a transparency controller coupled to control the electro-chromic film with a drive signal to decrease the transparency of the optical element as the brightness of the ambient light increases. The transparency controller includes a scaling circuit coupled to receive a power signal from a power source and coupled to output the driving signal to the electro-chromic film to control the transparency of the optical element. The scaling circuit scales the power signal to generate the driving signal. The transparency controller further includes a control circuit coupled to the scaling circuit to control the scaling applied by the scaling circuit.

Abstract translation: 用于向头戴式显示器的光学元件提供可调透明度的装置包括跨越光学元件设置的电铬，以调节光学元件对环境光的透明度，以及透明度控制器，其耦合以控制电致变色膜与 当环境光的亮度增加时降低光学元件的透明度的驱动信号。 透明度控制器包括缩放电路，其被耦合以从电源接收功率信号并被耦合以将驱动信号输出到电致变色膜以控制光学元件的透明度。 缩放电路缩放电源信号以产生驱动信号。 透明度控制器还包括耦合到缩放电路以控制由缩放电路施加的缩放的控制电路。

公开(公告)号：US09341850B1

公开(公告)日：2016-05-17

申请号：US13874191

申请日：2013-04-30

Applicant: Google Inc.

Inventor： Ozan Cakmakci ,  Anurag Gupta ,  Bernard C. Kress

IPC: G02B27/01 ,  G02B27/42

CPC classification number: G02B27/0172 ,  G02B27/0101 ,  G02B27/4211 ,  G02B27/4216 ,  G02B2027/011

Abstract: An optical apparatus for a see-through near-to-eye display includes a diffractive optical combiner, one or more refractive correction lenses, and a diffractive correction element. The diffractive optical combiner has an eye-ward side and an external scene side and includes a reflective diffraction grating that is at least partially reflective to image light incident through the eye-ward side and at least partially transmissive to external scene light incident through the external scene side. The one or more refractive correction lenses are disposed in an optical path of the image light to aid in pre-correcting aberrations induced in the image light after reflection off of the diffractive optical combiner. The diffractive correction element is disposed in the optical path of the image light to pre-compensate for lateral color aberrations induced in the image light after reflection off of the diffractive optical combiner.

Abstract translation: 用于透视近眼睛显示器的光学装置包括衍射光学合成器，一个或多个折射校正透镜和衍射校正元件。 衍射光学合成器具有眼睛侧和外部场景侧，并且包括反射衍射光栅，该反射衍射光栅至少部分地反射入射穿过眼睛侧的图像光，并且至少部分透射通过外部入射的外部场景光 场景侧。 一个或多个折射矫正透镜设置在图像光的光路中，以有助于在衍射光学合成器反射之后在图像光中感应的像差的预校正。 衍射校正元件设置在图像光的光路中，以预先补偿在衍射光学合成器反射之后在图像光中感应的横向色像差。

公开(公告)号：US09335548B1

公开(公告)日：2016-05-10

申请号：US13972782

申请日：2013-08-21

Applicant: Google Inc.

Inventor： Ozan Cakmakci ,  Anurag Gupta

IPC: G02B27/01 ,  G02B26/00 ,  G02B27/00 ,  G02F1/29 ,  G06F3/01

CPC classification number: G02B27/0172 ,  G02B26/005 ,  G02B27/0093 ,  G06F3/013 ,  G06F3/017

Abstract: A head-wearable display includes a collimated light source, a beam steering mechanism, and a synchronization controller. The collimated light source selectively emits collimated light. The beam steering mechanism is optically coupled to receive the collimated light and angularly scans the collimated light between beam steering states that each redirect the collimate light to a different angular direction along at least one angular dimension. The beam steering mechanism is coupled to scan the collimated light across an eyebox. The synchronization controller is coupled to the collimated light source and the beam steering mechanism to synchronize selective emission of the collimated light from the collimated light source with the beam steering states of the beam steering mechanism to repetitiously draw an image in the eyebox.

Abstract translation: 头戴式显示器包括准直光源，光束转向机构和同步控制器。 准直光源选择性地发射准直光。 光束转向机构被光学耦合以接收准直光并且角度地扫描光束操纵状态之间的准直光，每个光束转向状态将准直光沿着至少一个角度尺寸重定向到不同的角度方向。 光束转向机构被耦合以扫描穿过眼框的准直光。 同步控制器耦合到准直光源和光束转向机构以使来自准直光源的准直光的选择性发射与光束转向机构的光束操纵状态同步，以重复地在眼箱中绘制图像。

公开(公告)号：US09258314B1

公开(公告)日：2016-02-09

申请号：US13842511

申请日：2013-03-15

Applicant: Google Inc.

Inventor： Fei Xiao ,  Ioan Marius Pungaru ,  Bill Davis ,  Michael McNally ,  Vinay Somasundara Rao ,  Anurag Gupta

IPC: G06F11/00 ,  G06Q40/00 ,  H04L29/06

CPC classification number: H04L63/14 ,  H04L63/1433

Abstract: This specification describes technologies relating to detecting anomalous user accounts. A computer implemented method is disclosed which evaluates an unknown status user account. The method described compares features associated with a plurality of known anomalous user accounts stored in a database to features present in the unknown account. A correlation value corresponding to the probability of a specific feature occurring in a particular anomalous user account is calculated and a dependence value corresponding to the degree of dependence between the given feature and at least one other feature is also calculated. A subset of features in the unknown account is generated comprising those features that possess a correlation value less than a threshold value and a dependence value below a maximum correlation value. A risk score for the unknown account is calculated by selecting those features from the subset that maximizes the correlation value. The unknown account is then reviewed by an account reviewer if the risk score exceeds a threshold value.

Abstract translation: 本规范描述了检测异常用户帐户的技术。 公开了一种评估未知状态用户帐户的计算机实现方法。 所描述的方法将存储在数据库中的多个已知异常用户帐户相关联的特征与存在于未知帐户中的特征进行比较。 计算对应于在特定异常用户帐户中出现的特定特征的概率的相关值，并且还计算与给定特征与至少一个其他特征之间的依赖程度相对应的依赖值。 产生未知帐户中的特征的子集，其包括具有小于阈值的相关值和低于最大相关值的相关值的特征。 通过从子集中选择最大化相关值的特征来计算未知账户的风险评分。 如果风险分数超过阈值，则帐户审核人员将审查未知帐户。

公开(公告)号：US09057826B2

公开(公告)日：2015-06-16

申请号：US13756249

申请日：2013-01-31

Applicant: Google Inc.

Inventor： Anurag Gupta ,  Greg E. Priest-Dorman ,  Bernard C. Kress

IPC: G02C1/00 ,  G02B3/12 ,  G02C11/00 ,  G02B5/18 ,  G02B27/01

CPC classification number: G02B3/12 ,  G02B5/18 ,  G02B5/1842 ,  G02B5/1861 ,  G02B27/0101 ,  G02B27/0172 ,  G02B2027/011 ,  G02B2027/013 ,  G02B2027/0178 ,  G02C7/086 ,  G02C11/10

Abstract: An optical apparatus includes an optical combiner, an image lens, and an external scene lens. The optical combiner has an eye-ward side and an external scene side and includes a partially reflective diffraction grating that is at least partially reflective to image light incident through the eye-ward side and at least partially transmissive to external scene light incident through the external scene side. A first mount is positioned to hold the image lens in an optical path of the image light to apply a first corrective prescription to the image light. A second mount is positioned to hold an external scene lens over the external scene side of the optical combiner to apply a second corrective prescription to the external scene light. The optical combiner combines the image light with the scene light to form a combined image that is corrected according to the first and second corrective prescriptions.

Abstract translation: 光学装置包括光学组合器，图像透镜和外部场景透镜。 该光学组合器具有侧视侧和外部场景侧，并且包括部分反射衍射光栅，该部分反射衍射光栅至少部分地反射入射穿过眼睛侧的图像光，并且至少部分透射通过外部入射的外部场景光 场景侧。 第一安装件定位成将图像透镜保持在图像光的光路中，以对图像光施加第一校正处方。 第二安装座定位成将外部场景镜头保持在光学组合器的外部场景侧上，以对外部场景光应用第二校正处方。 光学合成器将图像光与场景光组合以形成根据第一和第二校正处方校正的组合图像。

公开(公告)号：US20140211290A1

公开(公告)日：2014-07-31

申请号：US14243799

申请日：2014-04-02

Applicant: Google Inc.

Inventor： Mark B. Spitzer ,  Anurag Gupta

IPC: G02F1/03 ,  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：US20140211146A1

公开(公告)日：2014-07-31

申请号：US13756249

申请日：2013-01-31

Applicant: Google Inc.

Inventor： Anurag Gupta ,  Greg E. Priest-Dorman ,  Bernard C. Kress

IPC: G02B27/01

CPC classification number: G02B3/12 ,  G02B5/18 ,  G02B5/1842 ,  G02B5/1861 ,  G02B27/0101 ,  G02B27/0172 ,  G02B2027/011 ,  G02B2027/013 ,  G02B2027/0178 ,  G02C7/086 ,  G02C11/10

Abstract: An optical apparatus includes an optical combiner, an image lens, and an external scene lens. The optical combiner has an eye-ward side and an external scene side and includes a partially reflective diffraction grating that is at least partially reflective to image light incident through the eye-ward side and at least partially transmissive to external scene light incident through the external scene side. A first mount is positioned to hold the image lens in an optical path of the image light to apply a first corrective prescription to the image light. A second mount is positioned to hold an external scene lens over the external scene side of the optical combiner to apply a second corrective prescription to the external scene light. The optical combiner combines the image light with the scene light to form a combined image that is corrected according to the first and second corrective prescriptions.

Abstract translation: 光学装置包括光学组合器，图像透镜和外部场景透镜。 该光学组合器具有侧视侧和外部场景侧，并且包括部分反射衍射光栅，该部分反射衍射光栅至少部分地反射入射穿过眼睛侧的图像光，并且至少部分透射通过外部入射的外部场景光 场景侧。 第一安装件定位成将图像透镜保持在图像光的光路中，以对图像光施加第一校正处方。 第二安装座定位成将外部场景镜头保持在光学组合器的外部场景侧上，以对外部场景光应用第二校正处方。 光学合成器将图像光与场景光组合以形成根据第一和第二校正处方校正的组合图像。