29 January 2008 Increased collection efficiency of LIFI high intensity electrodeless light source
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Abstract
Recently, RF driven electrodeless high intensity light sources have been implemented successfully in the projection display systems for HDTV and videowall applications. This paper presents advances made in the RF waveguide and electric field concentrator structures with the purpose of reducing effective arc size and increasing light collection. In addition, new optical designs are described that further improve system efficiency. The results of this work demonstrate that projection system light throughput is increased relative to previous implementations and performance is optimized for home theater and other front projector applications that maintain multi-year lifetime without re-lamping, complete spectral range, fast start times and high levels of dynamic contrast due to dimming flexibility in the light source system.
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Abdeslam Hafidi, Marc DeVincentis, Markus Duelli, Richard Gilliard, "Increased collection efficiency of LIFI high intensity electrodeless light source", Proc. SPIE 6911, Emerging Liquid Crystal Technologies III, 69110S (29 January 2008); doi: 10.1117/12.763977; https://doi.org/10.1117/12.763977
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