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P‐47: A Geometric Waveguide with Two‐Dimensional Pupil Expansion for Near‐Eye Displays
Author(s) -
Chien Hung-Ta,
Wei Shih-Chih,
Chang Chuan-Chung,
Chuang Fu-Ming
Publication year - 2021
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/sdtp.14924
Subject(s) - diagonal , optics , luminance , projector , pupil , waveguide , exit pupil , process (computing) , computer science , mathematics , physics , materials science , geometry , operating system
We have designed and simulated a geometric waveguide for near‐eye displays. The image source is a DLP projector with a 4mm pupil. The waveguide consists of two pupil expanders for the horizontal and vertical directions. Simple optical coating and inject molding process could reduce the cost. A near‐eye display with field‐of‐view 40 degrees in diagonal is achieved. The luminance efficiency is 0.5% and the total weight is only 6.1g.