OPTICAL ASSEMBLY AND AR DEVICE

WIPO Patent Application WO/2022/142565

A1

The embodiments of the present application provide an optical assembly and an AR device. The optical assembly is applied to the AR device, and the optical assembly comprises: a display assembly; and an optical element based on a birefringence effect, wherein the optical element and the display assembly are arranged at intervals; at least part of light emitted by the display assembly is perpendicularly incident to an incident surface of the optical element, and the optical element converts at least part of the light from the display assembly into o light and e light and emits same; and the optical element and the display assembly can move relative to each other so as to expand an emission range of the e light. According to the technical solution of the present application, an optical element based on a birefringence effect is provided on an optical path emitted by a display assembly, the optical element converts at least part of light emitted by the display assembly into o light and e light, and the optical element and the display assembly move relative to each other so as to expand an emission range of the e light, thereby increasing the range of eyebox of the whole optical assembly, and thus improving the user experience as a whole.

ZHU RUI (CN)
HUI XIAOHUI (CN)
LI DEHUA (CN)

PCT/CN2021/122520

July 07, 2022

October 07, 2021

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GOERTEK INC (CN)

G02B27/01

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