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Proceedings Paper

Passive method of eliminating accommodation/convergence disparity in stereoscopic head-mounted displays
Author(s): Jesse B. Eichenlaub
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Paper Abstract

The difference in accommodation and convergence distance experienced when viewing stereoscopic displays has long been recognized as a source of visual discomfort. It is especially problematic in head mounted virtual reality and enhanced reality displays, where images must often be displayed across a large depth range or superimposed on real objects. DTI has demonstrated a novel method of creating stereoscopic images in which the focus and fixation distances are closely matched for all parts of the scene from close distances to infinity. The method is passive in the sense that it does not rely on eye tracking, moving parts, variable focus optics, vibrating optics, or feedback loops. The method uses a rapidly changing illumination pattern in combination with a high speed microdisplay to create cones of light that converge at different distances to form the voxels of a high resolution space filling image. A bench model display was built and a series of visual tests were performed in order to demonstrate the concept and investigate both its capabilities and limitations. Results proved conclusively that real optical images were being formed and that observers had to change their focus to read text or see objects at different distances

Paper Details

Date Published: 22 March 2005
PDF: 13 pages
Proc. SPIE 5664, Stereoscopic Displays and Virtual Reality Systems XII, (22 March 2005); doi: 10.1117/12.587689
Show Author Affiliations
Jesse B. Eichenlaub, Dimension Technologies Inc. (United States)


Published in SPIE Proceedings Vol. 5664:
Stereoscopic Displays and Virtual Reality Systems XII
Andrew J. Woods; John O. Merritt; Mark T. Bolas; Ian E. McDowall, Editor(s)

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