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Proceedings Paper

Effects of image focal depth in geometrical lightguide head mounted displays
Author(s): Miaomiao Xu; Hong Hua
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Paper Abstract

Waveguide or lightguide has the advantages of light weight, small volume and relatively high efficiency and thus is considered as one of the promising solutions to the optical combiner required for optical see-through augmented reality displays. Although there exist a few commercial products utilizing lightguides as the optical combiners, few works discussed the potential image artifacts caused by the ray bundle collimation errors in lightguides. In this paper, we discussed three causes of collimation errors in the geometrical waveguide: lightguide manufacture tolerance, change of image focal depth, and curved lightguide substrate. Based on the simulation and experiment results of the first two causes, we demonstrated two different types of image artifacts in the geometrical-waveguide-based AR displays.

Paper Details

Date Published: 19 February 2020
PDF: 7 pages
Proc. SPIE 11310, Optical Architectures for Displays and Sensing in Augmented, Virtual, and Mixed Reality (AR, VR, MR), 113100N (19 February 2020); doi: 10.1117/12.2543264
Show Author Affiliations
Miaomiao Xu, James C. Wyant College of Optical Sciences, The Univ. of Arizona (United States)
Hong Hua, James C. Wyant College of Optical Sciences, The Univ. of Arizona (United States)


Published in SPIE Proceedings Vol. 11310:
Optical Architectures for Displays and Sensing in Augmented, Virtual, and Mixed Reality (AR, VR, MR)
Bernard C. Kress; Christophe Peroz, Editor(s)

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