公开(公告)号：US20220179222A1

公开(公告)日：2022-06-09

申请号：US17682159

申请日：2022-02-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Rui GUO ,  Gen LI ,  Shujie LI ,  Dongyu GENG ,  Minhai TU

IPC: G02B27/01 ,  G02B1/00

Abstract: This application provides an optical combiner and a related device for augmented reality. The optical combiner includes a transparent substrate and a metasurface layer. The metasurface layer is disposed on a surface of the transparent substrate. The metasurface layer includes a plurality of metasurface units arranged two-dimensionally. A spacing between two adjacent metasurface units in the plurality of metasurface units gradually changes along one or two dimensions, and a relative angle between any two adjacent metasurface units is not zero. The optical combiner can increase an ambient light transmittance and increase uniformity and a field of view of an image.