LED based full color stereoscopic projection system

Lawrence Bogaert; Youri Meuret; Bart Van Giel; Hugo Thienpont

doi:10.1117/12.699466

6 February 2007 LED based full color stereoscopic projection system

Lawrence Bogaert, Youri Meuret, Bart Van Giel, Hugo Thienpont

Proceedings Volume 6489, Projection Displays XII; 64890E (2007) https://doi.org/10.1117/12.699466
Event: Integrated Optoelectronic Devices 2007, 2007, San Jose, California, United States

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.

Citation Download Citation

Lawrence Bogaert, Youri Meuret, Bart Van Giel, and Hugo Thienpont "LED based full color stereoscopic projection system", Proc. SPIE 6489, Projection Displays XII, 64890E (6 February 2007); https://doi.org/10.1117/12.699466

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