公开(公告)号：US09442291B1

公开(公告)日：2016-09-13

申请号：US13930845

申请日：2013-06-28

申请人： Google Inc.

发明人： Marc Andrew Martinez ,  Ehsan Saeedi ,  Bernard C. Kress

IPC分类号： G02B27/01 ,  G02B5/18

CPC分类号： G02B27/0172 ,  G02B5/1819 ,  G02B27/4216 ,  G02B2027/0118

摘要： An optical combiner for a head-wearable display includes an eyepiece body and a plurality of diffractive optical element (“DOE”) segments. The eyepiece body has an eye-ward side and an external scene side. The DOE segments are disposed within the eyepiece body and are at least partially reflective to image light incident through the eye-ward side of the eyepiece body and at least partially transmissive to external scene light incident through the external scene side of the eyepiece body. The DOE segments are disjoint from each other and each is disposed along a different disjoint surface within the eyepiece body that is oriented at a different angle relative to the other DOE segments. The plurality of DOE segments operate to magnify and reflect the image light incident from an off-axis position to an eyebox sized area.

摘要翻译： 用于头戴式显示器的光学组合器包括目镜主体和多个衍射光学元件（“DOE”）段。 目镜主体有一个侧面和一个外部场景。 DOE段设置在目镜体内，并且至少部分地反射入射到目镜体的眼区侧的图像光，并且至少部分透射通过目镜体的外部场景侧入射的外部场景光。 DOE段彼此不相交，并且每个沿着目镜体内相对于其它DOE段以不同角度取向的不同的不相交表面设置。 多个DOE段操作以将从偏轴位置入射的图像光放大并反射至眼框大小的区域。