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Proceedings Paper

Volumetric technology: enabling near-work compatible AR displays
Author(s): R. Zabels; K. Osmanis; A. Ozols; M. Narels; U. Gertners; R. Smukulis; I. Osmanis
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Paper Abstract

In this work we investigate design parameters of a stereoscopic head-worn augmented reality display that would facilitate a wider uptake of technology by enterprise and professional users. The emphasis is put on mimicking a way of how naturally the ambient world is perceived by human visual system. To solve this, we propose a solid-state multi-focal display architecture, which is tailored for near-work oriented tasks. The core of the proposed technology is a solid-state multi-plane volumetric screen, with four physical image depth planes which form the secondary image source. The volumetric screen utilizes electrically controllable liquid-crystal based diffuser elements, which receive the image information from the primary source – a pico projection unit. The volumetric screen is coupled with a bird-bath type optical image combiner/eyepiece to yield a 40-degree horizontal field of view covering a representable depth space of 0.35m to infinity where no effects of vergence-accommodation conflict are experienced.

Paper Details

Date Published: 26 February 2020
PDF: 9 pages
Proc. SPIE 11304, Advances in Display Technologies X, 113040E (26 February 2020); doi: 10.1117/12.2544891
Show Author Affiliations
R. Zabels, Lightspace Technologies (Latvia)
K. Osmanis, Lightspace Technologies (Latvia)
A. Ozols, EuroLCDs (Latvia)
M. Narels, Lightspace Technologies (Latvia)
U. Gertners, LightSpace Technologies (Latvia)
R. Smukulis, Lightspace Technologies (Latvia)
I. Osmanis, Lightspace Technologies (Latvia)

Published in SPIE Proceedings Vol. 11304:
Advances in Display Technologies X
Jiun-Haw Lee; Qiong-Hua Wang; Tae-Hoon Yoon, Editor(s)

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