公开(公告)号：US20230045672A1

公开(公告)日：2023-02-09

申请号：US17395858

申请日：2021-08-06

申请人： Hong Kong Applied Science and Technology Research Institute Company Limited

发明人： Kin Lung Chan ,  Ying WANG ,  Zhuanyun ZHANG

IPC分类号： G02B27/01 ,  G02B6/04

摘要： An apparatus installed in a head-mounted display (HMD) has a coupling prism formed by packing diagonally-reflective (DR) prisms together. Each DR prism has an internal diagonal plane that is at least partially reflective. A captured image of eye or environmental scene received by a DR prism is reflected to an image-leaving end surface thereof. Image-leaving end surfaces of all DR prisms are oriented along a same direction to optically multiplex the captured images to create a multi-channel image. An imaging sensor on the coupling prism images the multi-channel image, avoiding inter-channel interference caused by spillover of captured-image signals while allowing one imaging sensor instead of multiple ones to image the captured images. A micro display displays a visible image to one DR prism, whose internal diagonal plane reflects the visible image along a direction towards an eye. Hence, the apparatus also enables image displaying to a HMD wearer.