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Proceedings Paper

LED based full color stereoscopic projection system
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Paper Abstract

We present a compact light emitting diode (LED) based projection system with potential for stereoscopic viewing. The optical core consists of four polarizing beam splitters (PBS), positioned in a cross configuration, with wavelength selective half wave plates placed between them. Four liquid crystal on silicon (LCoS) panels are located at the exterior facets of two PBSs in opposite corners of the cuboid. The illumination system combines individual LED sources and ensures telecentric illumination through the optical core. This architecture gives rise to two light paths that independently generate two linear polarized images with orthogonal polarization direction. When the observer wears polarization sensitive eyeglasses and a polarization maintaining screen is used, each eye will see a different projected image such that three-dimensional (3-D) viewing can be perceived. On the other hand, 2-D vision is possible by projecting two identical images.

Paper Details

Date Published: 6 February 2007
PDF: 9 pages
Proc. SPIE 6489, Projection Displays XII, 64890E (6 February 2007); doi: 10.1117/12.699466
Show Author Affiliations
Lawrence Bogaert, Vrije Univ. Brussel (Belgium)
Youri Meuret, Vrije Univ. Brussel (Belgium)
Bart Van Giel, Vrije Univ. Brussel (Belgium)
Hugo Thienpont, Vrije Univ. Brussel (Belgium)

Published in SPIE Proceedings Vol. 6489:
Projection Displays XII
Ming H. Wu; Hoang Y. Lin, Editor(s)

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