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Proceedings Paper

Stereoscopic large-screen displays using liquid-crystal light-valve projectors
Author(s): Joe M. Haggerty; Stephen J. Reinsch; William P. Bleha Jr.; Rodney D. Sterling
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Paper Abstract

A stereoscopic projection system for displaying 3-D video information has been constructed using Liquid Crystal Light Valves (LCLV5) . Presently most stereoscopic displays of video imagery use a single CRT with a liquid crystal or PLZT shutter1'2 or use two CRT5 with orthogonally polarized outputs3. The advantage of the first method is only one CRT is needed and image convergence is not a problem. However, whether passive or active glasses are used for the field-sequential viewing, ghost images are formed due to the finite phosphor decay time1. A dual CRT projector 3-D display has the advantage that passive glasses can be easily employed with virtually no ghost images. The luminous output of the projector, though, is reduced by half during the initial polarization process. In a Liquid Crystal Light Valve projector the output light is linearly polarized in normal operation. Therefore a two-projector 3-D stereoscopic system using LCLVs can be realized which has very low intensity ghost images, high luminous output, and can be viewed with passive glasses. This paper discusses some potential configurations of such a projector and how a newly developed LCLV with improved time response makes real-time 3-D imaging using this technology possible.

Paper Details

Date Published: 1 August 1990
PDF: 9 pages
Proc. SPIE 1255, Large-Screen and Projection Displays II, (1 August 1990); doi: 10.1117/12.19878
Show Author Affiliations
Joe M. Haggerty, Hughes Aircraft Co. (United States)
Stephen J. Reinsch, Hughes Aircraft Co. (United States)
William P. Bleha Jr., Hughes Aircraft Co. (United States)
Rodney D. Sterling, Hughes Aircraft Co. (United States)

Published in SPIE Proceedings Vol. 1255:
Large-Screen and Projection Displays II

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