High-efficiency micro-optical color filter for liquid-crystal projection system applications

High-efficiency color filters composed of a microprism array, optical interference color filters, and a microlens array light compressor were developed to increase the optical throughput of liquid-crystal projection systems. The new devices utilize the energy of whole spectra by taking full advantag...

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Bibliographic Details
Published in:Applied optics (2004) 2000-03, Vol.39 (7), p.1159-1163
Main Authors: Ko, F J, Shieh, H P
Format: Article
Language:English
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Summary:High-efficiency color filters composed of a microprism array, optical interference color filters, and a microlens array light compressor were developed to increase the optical throughput of liquid-crystal projection systems. The new devices utilize the energy of whole spectra by taking full advantage of a light compressor and interference dichroic filters to distribute the energy of spectra to the respective color pixel area. Thus high-efficiency micro-optical color filters allow efficient utilization of the energy of incident light and maximize the optical throughput of the projection system.
ISSN:1559-128X
DOI:10.1364/ao.39.001159