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Eyepieces for augmented reality display system
专利权人:
Inc.;Magic Leap
发明人:
BHARGAVA, Samarth,LIU, Victor Kai,MESSER, Kevin
申请号:
AU2018386296
公开号:
AU2018386296A1
申请日:
2018.12.14
申请国别(地区):
AU
年份:
2020
代理人:
摘要:
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.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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