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Wedge guides and pupil steering for mixed reality
Author(s) -
Travis Adrian R.L.,
Chen Liying,
Georgiou Andreas,
Chu Jiaqi,
Kollin Joel
Publication year - 2018
Publication title -
journal of the society for information display
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 52
eISSN - 1938-3657
pISSN - 1071-0922
DOI - 10.1002/jsid.629
Subject(s) - pupil , projector , optics , exit pupil , holography , computer science , wedge (geometry) , gaze , entrance pupil , shearing (physics) , computer vision , physics , artificial intelligence , thermodynamics
We suggest folding the optics of a classic‐mixed reality display into a slim wedge light guide with holographic combiner so that the pupil of a projector near the ear is imaged onto the pupil of the eye. Such folding makes the pupil of the virtual image small, so when gaze wanders, the image pupil should be switched between appropriate positions by shearing the combiner. Modeling indicates that if a phase plate corrects distortion for the ray to the fovea center, the rest of the image can be scanned at adequate resolution provided that a cylindrical mirror varies focal power in the horizontal.