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Proceedings Paper

Uniform high-efficiency condenser for projection systems
Author(s): Vladimir Medvedev; William A. Parkyn; David G. Pelka
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Paper Abstract

We present a novel condenser system based on a nonimaging TIR lens and an associated apodizing aspheric lens. This system provides uniform collimated illumination of the image plane of a projector such as an overhead viewgraph or LCD projector. The TIR lens enables the system to be very compact. The aspheric lens lies between the light source and the TIR lens, so that the TIR lens output illumination is spatially uniform.

Paper Details

Date Published: 3 October 1997
PDF: 13 pages
Proc. SPIE 3139, Nonimaging Optics: Maximum Efficiency Light Transfer IV, (3 October 1997); doi: 10.1117/12.290216
Show Author Affiliations
Vladimir Medvedev, Teledyne Lighting and Display Products (United States)
William A. Parkyn, Teledyne Lighting and Display Products (United States)
David G. Pelka, Teledyne Lighting and Display Products (United States)


Published in SPIE Proceedings Vol. 3139:
Nonimaging Optics: Maximum Efficiency Light Transfer IV
Roland Winston, Editor(s)

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