Curved wedges and shearing gratings for augmented reality

A. R. L. Travis; Jiaqi Chu; Andreas Georgiou

doi:10.1117/12.2303815

21 May 2018 Curved wedges and shearing gratings for augmented reality

A. R. L. Travis, Jiaqi Chu, Andreas Georgiou

Proceedings Volume 10676, Digital Optics for Immersive Displays; 106760D (2018) https://doi.org/10.1117/12.2303815
Event: SPIE Photonics Europe, 2018, Strasbourg, France

Abstract

Designer spectacles look great and we want the same for a virtual display. A curved wedge guide will be described that can transfer the virtual image from a projector near the ear round to the pupil of the eye. The eye-box is tiny but the plan is to steer it so as to follow the pupil of the eye and this will be done by shearing the holographic combiner. Ray-tracing predicts a field of view of 115° per eye and a resolution of 2000 pixels per radian at the fovea using pre-distortion in the projector. Guide tolerances are lax, image accommodation is variable and a few milliWatts suffice to steer the pupil.

Citation Download Citation

A. R. L. Travis, Jiaqi Chu, and Andreas Georgiou "Curved wedges and shearing gratings for augmented reality", Proc. SPIE 10676, Digital Optics for Immersive Displays, 106760D (21 May 2018); https://doi.org/10.1117/12.2303815

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