公开(公告)号：US20240201456A1

公开(公告)日：2024-06-20

申请号：US18556856

申请日：2022-04-28

Applicant: Magic Leap, Inc.

Inventor： Vikramjit SINGH ,  Jason Allen SHULTZ ,  Frank Y. XU ,  Robert D. TEKOLSTE

IPC: G02B6/42 ,  G02B27/01

CPC classification number: G02B6/4206 ,  G02B27/0172 ,  G02B2027/0178

Abstract: Disclosed herein are systems and methods for displays, such as for a head wearable device. An example display can include an infrared illumination layer, the infrared illumination layer including a waveguide having a first face and a second face, the first face disposed opposite the second face. The illumination layer may also include an in-coupling grating disposed on the first face, the in-coupling grating configured to couple light into the waveguide to generate internally reflected light propagating in a first direction. The illumination layer may also include a plurality of out-coupling gratings disposed on at least one of the first face and the second face, the plurality of out-coupling gratings configured to receive the internally reflected light and couple the internally reflected light out of the waveguide.