Chirped polarization volume grating for wide FOV and high‐efficiency waveguide‐based AR displays

Kun Yin, Hung‐Yuan Lin, Shin‐Tson Wu

Journal of the Society for Information Display · 2020 · 30 citations · 19 references

Concepts

Abstract

Abstract We demonstrate a reflective chirped polarization volume grating as a strong contender for wide field‐of‐view augmented reality display systems. By introducing gradient pitch along the beam propagation direction, the angular bandwidth extends dramatically from 18° to 54° while keeping over 80% average efficiency and 95% peak efficiency.

References

19