Title:
EYEPIECES FOR AUGMENTED REALITY DISPLAY SYSTEM
Document Type and Number:
Japanese Patent JP2023165792
Kind Code:
A
Abstract:
To provide eyepiece waveguides for an augmented reality display system.SOLUTION: An eyepiece waveguide for an augmented reality display system may include an optically transmissive substrate, an input coupling grating (ICG) region, a multi-directional pupil expander (MPE) region, and an exit pupil expander (EPE) region. The ICG region may receive an input beam of light and couple the input beam into the substrate as a guided beam. The MPE region may include a plurality of diffractive features which exhibit periodicity along at least a first axis of periodicity and a second axis of periodicity. The MPE region may be positioned to receive the guided beam from the ICG region and to diffract it in a plurality of directions to create a plurality of diffracted beams. The EPE region may be positioned to receive one or more of the diffracted beams from the MPE region and to out-couple them from the optically transmissive substrate as output beams.SELECTED DRAWING: Figure 2
Inventors:
SAMARTH BHARGAVA
VICTOR KAI LIU
KEVIN MESSER
VICTOR KAI LIU
KEVIN MESSER
Application Number:
JP2023151104A
Publication Date:
November 17, 2023
Filing Date:
September 19, 2023
Export Citation:
Assignee:
MAGIC LEAP INC
International Classes:
G02B27/02; G02B25/00; G02C11/00
Attorney, Agent or Firm:
Shusaku Yamamoto
Natsuki Morishita
Takatoshi Iida
Daisuke Ishikawa
Kensaku Yamamoto
Natsuki Morishita
Takatoshi Iida
Daisuke Ishikawa
Kensaku Yamamoto
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