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公开(公告)号：US09494485B2
公开(公告)日：2016-11-15
申请号：US14200718
申请日：2014-03-07
Applicant: Google Inc.
Inventor： Evan M. Richards , Anurag Gupta
Abstract: A system for measuring transparent optical elements includes a beam generator, optomechanics, an imaging module, and a logic unit. The beam generator is driven to emit a beam directed at a transparent optical element that is aligned by optomechanics. An image is captured of the beam after the beam reflects off of surfaces of the transparent optical element. The image is analyzed to measure tolerances of the transparent optical element.
Abstract translation: 用于测量透明光学元件的系统包括光束发生器，光学机构，成像模块和逻辑单元。 光束发生器被驱动以发射指向通过光学机构对准的透明光学元件的光束。 在光束从透明光学元件的表面反射之后，捕获光束的图像。 分析图像以测量透明光学元件的公差。
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公开(公告)号：US09335549B2
公开(公告)日：2016-05-10
申请号：US14219316
申请日：2014-03-19
Applicant: Google Inc.
Inventor： Ozan Cakmakci , Anurag Gupta , Mark B. Spitzer , Evan M. Richards
CPC classification number: G02B27/0172 , G02B5/0252 , G02B27/01 , G02B27/0103 , G02B2027/0174 , G02B2027/0178 , G02B2027/0196 , G03H1/0248 , G03H1/26 , G03H2001/2226 , G03H2001/2615
Abstract: An optical element for a Head Mounted Display (“HMD”) includes a lightguide. The lightguide is embedded in the optical element and optically coupled to receive display light and direct the display light in an eyeward direction. The lightguide includes an eyeward hologram, a scene-side hologram, and a propagation region disposed between the eyeward hologram and the scene-side hologram. The eyeward hologram is configured to reflect a wavelength range of the display light that is incident upon the eyeward hologram at a specific angle. The scene-side hologram is configured to reflect the wavelength range of the display light that is incident upon the scene-side hologram at the specific angle.
Abstract translation: 用于头戴式显示器（“HMD”）的光学元件包括光导。 光导被嵌入在光学元件中并被光学耦合以接收显示光并将显示光引导到目视方向。 光导包括眼睛全息图，场景侧全息图以及设置在目视全息图和场景侧全息图之间的传播区域。 眼镜全息图被配置为以特定角度反射入射在目镜全息图上的显示光的波长范围。 场景侧全息图被配置为以特定角度反射入射到场景侧全息图的显示光的波长范围。
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公开(公告)号：US09285591B1
公开(公告)日：2016-03-15
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：US20150260991A1
公开(公告)日：2015-09-17
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
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。
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公开(公告)号：US20150253185A1
公开(公告)日：2015-09-10
申请号：US14200718
申请日：2014-03-07
Applicant: Google Inc.
Inventor： Evan M. Richards , Anurag Gupta
Abstract: A system for measuring transparent optical elements includes a beam generator, optomechanics, an imaging module, and a logic unit. The beam generator is driven to emit a beam directed at a transparent optical element that is aligned by optomechanics. An image is captured of the beam after the beam reflects off of surfaces of the transparent optical element. The image is analyzed to measure tolerances of the transparent optical element.
Abstract translation: 用于测量透明光学元件的系统包括光束发生器，光学机构，成像模块和逻辑单元。 光束发生器被驱动以发射指向通过光学机构对准的透明光学元件的光束。 在光束从透明光学元件的表面反射之后，捕获光束的图像。 分析图像以测量透明光学元件的公差。
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Patent Agency Ranking
公开(公告)号：US09069115B2
公开(公告)日：2015-06-30
申请号：US13870813
申请日：2013-04-25
Applicant: Google Inc.
Inventor： Anurag Gupta , Steven Vincent James , Amber Marie Luttmann
CPC classification number: G02B5/02 , G02B5/22 , G02B27/0172 , G02B2027/0121
Abstract: An eyepiece for a head mounted display (“HMD”) includes a first end for receiving computer generated image (“CGI”) light and a second end disposed opposite the first end. The eyepiece also includes an image directing element to direct the CGI light out of the eyepiece in an eye-ward direction. The image directing element is disposed between the first end and the second end. At least one edge running between the first end and the second end is configured to reduce reflection of the CGI light back into the eyepiece.
Abstract translation: 用于头戴式显示器（“HMD”）的目镜包括用于接收计算机生成的图像（“CGI”）光的第一端和与第一端相对设置的第二端。 目镜还包括图像引导元件，以将CGI光引导到目镜方向上。 图像引导元件设置在第一端和第二端之间。 在第一端和第二端之间延伸的至少一个边缘被配置为减少CGI光反射回目镜的反射。
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公开(公告)号：US20140320971A1
公开(公告)日：2014-10-30
申请号：US13870813
申请日：2013-04-25
Applicant: Google Inc.
Inventor： Anurag Gupta , Steven Vincent James , Amber Marie Luttmann
IPC: G02B27/01
CPC classification number: G02B5/02 , G02B5/22 , G02B27/0172 , G02B2027/0121
Abstract: An eyepiece for a head mounted display (“HMD”) includes a first end for receiving computer generated image (“CGI”) light and a second end disposed opposite the first end. The eyepiece also includes an image directing element to direct the CGI light out of the eyepiece in an eye-ward direction. The image directing element is disposed between the first end and the second end. At least one edge running between the first end and the second end is configured to reduce reflection of the CGI light back into the eyepiece.
Abstract translation: 用于头戴式显示器（“HMD”）的目镜包括用于接收计算机生成的图像（“CGI”）光的第一端和与第一端相对设置的第二端。 目镜还包括图像引导元件，以将CGI光引导到目镜方向上。 图像引导元件设置在第一端和第二端之间。 在第一端和第二端之间延伸的至少一个边缘被配置为减少CGI光反射回目镜的反射。
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公开(公告)号：US20140185142A1
公开(公告)日：2014-07-03
申请号：US13732688
申请日：2013-01-02
Applicant: Google Inc.
Inventor： Anurag Gupta , Chia-Jean Wang
IPC: 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。
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公开(公告)号：US09671614B2
公开(公告)日：2017-06-06
申请号：US15239617
申请日：2016-08-17
Applicant: Google Inc.
Inventor： Ozan Cakmakci , Anurag Gupta , Oscar A. Martinez
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.
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公开(公告)号：US20170059396A1
公开(公告)日：2017-03-02
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.
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。
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