Near-eye display with stacked lightguides

    公开(公告)号:US10302945B2

    公开(公告)日:2019-05-28

    申请号:US14824445

    申请日:2015-08-12

    Applicant: Google Inc.

    Abstract: Embodiments are described of an apparatus including an eyepiece having a front surface, a back surface spaced apart from the front surface, and an edge forming a perimeter of the eyepiece. The eyepiece includes an angled surface to direct light eye-measurement light reflected from an eye into the eyepiece and to direct display light out of the eyepiece to the eye. A first waveguide is formed in the eyepiece and extending from the angled surface to the edge, the first waveguide being optically coupled to a first portion of the angled surface having a first surface treatment. And a second waveguide is formed in the eyepiece and extending from the angled surface to the edge, the second waveguide being optically coupled to a second portion of the angled surface having a second surface treatment.

    Eyepiece with switchable reflector for head wearable display
    3.
    发明授权
    Eyepiece with switchable reflector for head wearable display 有权
    带可切换反射镜的目镜,用于头戴式显示屏

    公开(公告)号:US09395544B2

    公开(公告)日:2016-07-19

    申请号:US14209995

    申请日:2014-03-13

    Applicant: Google Inc.

    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 to receive the display light into the light guide component, an eye-ward facing side, a world facing side, a total internal reflection (“TIR”) portion disposed proximal to the input surface to guide the display light received through the input surface using TIR, and a partially reflective portion including a partially reflective element disposed over the eye-ward facing side and a switchable reflector disposed over the world facing side. The partially reflective portion is disposed to receive the display light from the TIR portion and to guide the display light via reflections off of the partially reflective element and the switchable reflector.

    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。 导光部件包括用于将显示光接收到导光部件的输入表面,面向眼睛的侧面,面向世界的侧面,设置在输入表面附近的全内反射(“TIR”)部分,以引导 使用TIR显示通过输入表面接收的光,以及部分反射部分,其包括设置在面向眼睛的侧面上的部分反射元件和设置在面向世界的侧面上的可切换反射器。 所述部分反射部分设置成从所述TIR部分接收所述显示光并通过所述部分反射元件和所述可切换反射器的反射来引导所述显示光。

    Thin curved eyepiece for see-through head wearable display
    4.
    发明授权
    Thin curved eyepiece for see-through head wearable display 有权
    薄型弯曲目镜,用于透视头戴式显示屏

    公开(公告)号:US09366869B2

    公开(公告)日:2016-06-14

    申请号:US14537780

    申请日:2014-11-10

    Applicant: Google Inc.

    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 eye-ward facing surface, a world facing surface, and a recess disposed in the world facing surface in the viewing region. The recess has a recessed surface that is discontinuous with the world facing surface. An add-on component is disposed in the recess and has a first surface mated to the recessed surface and a second surface that forms a continuous outer surface with the world facing surface. A partially reflective layer is disposed along an interface between the recessed surface and the first surface of the add-on component.

    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。 导光部件包括面向视力的表面,面向世界的表面和设置在观察区域中的面向世界的表面上的凹部。 凹槽具有与面向世界的表面不连续的凹陷表面。 附加部件设置在凹部中并且具有与凹入表面配合的第一表面和与世界面对表面形成连续外表面的第二表面。 部分反射层沿着凹入表面和附加部件的第一表面之间的界面设置。

    EYEPIECE WITH SWITCHABLE REFLECTOR FOR HEAD WEARABLE DISPLAY
    5.
    发明申请
    EYEPIECE WITH SWITCHABLE REFLECTOR FOR HEAD WEARABLE DISPLAY 有权
    EYEPIECE带可切换反射器,用于头戴式显示屏

    公开(公告)号:US20150260992A1

    公开(公告)日:2015-09-17

    申请号:US14209995

    申请日:2014-03-13

    Applicant: Google Inc.

    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 to receive the display light into the light guide component, an eye-ward facing side, a world facing side, a total internal reflection (“TIR”) portion disposed proximal to the input surface to guide the display light received through the input surface using TIR, and a partially reflective portion including a partially reflective element disposed over the eye-ward facing side and a switchable reflector disposed over the world facing side. The partially reflective portion is disposed to receive the display light from the TIR portion and to guide the display light via reflections off of the partially reflective element and the switchable reflector.

    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。 导光部件包括用于将显示光接收到导光部件的输入表面,面向眼睛的侧面,面向世界的侧面,设置在输入表面附近的全内反射(“TIR”)部分,以引导 使用TIR显示通过输入表面接收的光,以及部分反射部分,其包括设置在面向眼睛的侧面上的部分反射元件和设置在面向世界的侧面上的可切换反射器。 所述部分反射部分设置成从所述TIR部分接收所述显示光并通过所述部分反射元件和所述可切换反射器的反射来引导所述显示光。

    Lightguide device with outcoupling structures

    公开(公告)号:US10126482B2

    公开(公告)日:2018-11-13

    申请号:US15220178

    申请日:2016-07-26

    Applicant: Google Inc.

    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.

    Imaging lightguide with holographic boundaries
    7.
    发明授权
    Imaging lightguide with holographic boundaries 有权
    具有全息边界的成像光导

    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.

    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。

    See-through eyepiece for head wearable display

    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.

    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.

    ADDING PRESCRIPTIVE CORRECTION TO EYEPIECES FOR SEE-THROUGH HEAD WEARABLE DISPLAYS
    10.
    发明申请
    ADDING PRESCRIPTIVE CORRECTION TO EYEPIECES FOR SEE-THROUGH HEAD WEARABLE DISPLAYS 审中-公开
    添加对眼睛可见头戴式耳机显示器的预期校正

    公开(公告)号:US20170010465A1

    公开(公告)日:2017-01-12

    申请号:US14792084

    申请日:2015-07-06

    Applicant: Google Inc.

    Abstract: An eyepiece for a head wearable display includes a curved lightguide component, a curved see-through component, an output coupler, and a prescription layer. The curved lightguide component guides display light received at an input region and releases the display light along an eye-ward direction in a viewing region. The output coupler is disposed at the viewing region to redirect the display light towards the eye-ward direction for output from the curved lightguide component. The output coupler is at least partially transmissive to ambient light incident through a world-facing side such that the viewing region is see-through. The curved see-through component is mated to the world-facing side of the curved lightguide component. The prescription layer has a first side mated to an eye-facing side of the curved lightguide component and a second side having a curvature that introduces prescriptive lensing to both the ambient light and the display light.

    Abstract translation: 用于头戴式显示器的目镜包括弯曲的光导部件,弯曲的透视部件,输出耦合器和处方层。 弯曲的光导分量引导器显示在输入区域接收的光并且在观察区域中沿着眼睛方向释放显示光。 输出耦合器设置在观看区域,以将显示光线朝向眼睛方向重定向,以便从弯曲的光导部件输出。 输出耦合器至少部分地透射通过面向世界的一侧入射的环境光,使得观看区域是透视的。 弯曲的透视部件与弯曲的光导部件的面向世界的一侧配合。 处方层具有与弯曲光导部件的眼睛侧相配合的第一面和具有向环境光和显示光两者引入规定透镜的曲率的第二侧。

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