Projection systems have found widespread use in conference rooms and other professional applications during the last decade and are now entering the home TV market at a considerable pace. Projectors as small as about one litre are able to deliver several thousand screen lumens and are, with a system efficacy of over 10 lm W−1, the most efficient display systems realized today. Short arc lamps are a key component for projection systems of the highest efficiency for small-size projection displays.
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Derra et al. (2005) studied this question.