公开(公告)号：US09465215B2

公开(公告)日：2016-10-11

申请号：US14229169

申请日：2014-03-28

Applicant: Google Inc.

Inventor： Evan M. Richards ,  John D. Perreault

IPC: G02B27/01

CPC classification number: G02B27/0103 ,  G02B6/0015 ,  G02B6/005 ,  G02B27/0172 ,  G02B2027/0138 ,  G02B2027/0143 ,  G02B2027/0174 ,  G02B2027/0178

Abstract: An optical apparatus for a head wearable display includes a lightguide, in-coupling holograms, and an out-coupling optical element. The lightguide includes an in-coupling region for receiving display light into the lightguide, an out-coupling region for emitting the display light out of the lightguide, and a relay region for guiding a path of the display light from the in-coupling region to the out-coupling region. A first of the in-coupling holograms is disposed at the in-coupling region to redirect the path of the display light by a first angle. A second of the in-coupling holograms is disposed across from the first in-coupling hologram at the in-coupling region to redirect the path of the display light by a second angle such that the path of the display light enters a total internal reflection condition in the relay region after redirection by the first and second in-coupling holograms.

Abstract translation: 用于头戴式显示器的光学装置包括光导，耦合全息图和输出耦合光学元件。 光导包括用于将光显示入光导的入耦合区域，用于从光导中发射显示光的输出耦合区域，以及用于引导来自耦合区域的显示光的路径的中继区域 输出耦合区域。 耦合中的全息图中的第一个设置在耦合区域，以将显示光的路径重定向第一角度。 耦合在一起的全息图中的第二个被放置在耦合前的第一耦合全息图中，以使显示光的路径重定向第二角度，使得显示光的路径进入全内反射条件 在通过第一和第二插入耦合全息图重定向之后的继电器区域中。

公开(公告)号：US09423552B2

公开(公告)日：2016-08-23

申请号：US14188411

申请日：2014-02-24

Applicant: Google Inc.

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

IPC: F21V7/04 ,  F21V8/00 ,  G02B27/01 ,  G02B27/00 ,  G02B5/09 ,  G02B27/10 ,  G02B27/14

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：US20150277116A1

公开(公告)日：2015-10-01

申请号：US14229169

申请日：2014-03-28

Applicant: Google Inc.

Inventor： Evan M. Richards ,  John D. Perreault

IPC: G02B27/01

CPC classification number: G02B27/0103 ,  G02B6/0015 ,  G02B6/005 ,  G02B27/0172 ,  G02B2027/0138 ,  G02B2027/0143 ,  G02B2027/0174 ,  G02B2027/0178

Abstract: An optical apparatus for a head wearable display includes a lightguide, in-coupling holograms, and an out-coupling optical element. The lightguide includes an in-coupling region for receiving display light into the lightguide, an out-coupling region for emitting the display light out of the lightguide, and a relay region for guiding a path of the display light from the in-coupling region to the out-coupling region. A first of the in-coupling holograms is disposed at the in-coupling region to redirect the path of the display light by a first angle. A second of the in-coupling holograms is disposed across from the first in-coupling hologram at the in-coupling region to redirect the path of the display light by a second angle such that the path of the display light enters a total internal reflection condition in the relay region after redirection by the first and second in-coupling holograms.

Abstract translation: 用于头戴式显示器的光学装置包括光导，耦合全息图和输出耦合光学元件。 光导包括用于将光显示入光导的入耦合区域，用于从光导中发射显示光的输出耦合区域，以及用于引导来自耦合区域的显示光的路径的中继区域 输出耦合区域。 耦合中的全息图中的第一个设置在耦合区域，以将显示光的路径重定向第一角度。 耦合在一起的全息图中的第二个被放置在耦合前的第一耦合全息图中，以使显示光的路径重定向第二角度，使得显示光的路径进入全内反射条件 在通过第一和第二插入耦合全息图重定向之后的继电器区域中。

公开(公告)号：US20150268467A1

公开(公告)日：2015-09-24

申请号：US14219316

申请日：2014-03-19

Applicant: Google Inc.

Inventor： Ozan Cakmakci ,  Anurag Gupta ,  Mark B. Spitzer ,  Evan M. Richards

IPC: G02B27/01

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。

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。