Abstract
A novel design methodology for LED-array-based projection displays has
been developed. By combining etendue limitation, system intensity, and efficiency
requirements, a novel parameter space is proposed. Using this parameter space,
LED lens-array and compound parabolic concentrator (CPC)-array illumination
systems have been designed. A 1000-lm LED light source is built. Based on
these lens-array and CPC-array illuminators, several LED-based liquid crystal
on silicon (LCOS) projection systems are suggested. Among them, a one-panel
LCOS projection system is proposed and tested. The method discussed here should
be useful in the design of LED-array illumination systems for projectors in
general.
© 2007 IEEE
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