TY - JOUR
AU1 - de Boer, Dick K. G.
AU2 - Bruls, Dominique
AU3 - Hoelen, Christoph
AU4 - Jagt, Henri
AB - The concept of an LED-based source with high lumen density is described. It contains a luminescent rod in which LED light is converted to light with a longer wavelength that is extracted from a small face of the rod. The fundamental limitations and possibilities are discussed, as well as the constituents needed. Results are shown for two realized high lumen density sources. A source with YAG:Ce as phosphor is extensively characterized and the results are compared to modeling results. A source with an optimized green emitting phosphor is used for projection. With 64 pump LEDs at 490 W peak electrical input and 50% duty cycle, a peak luminous flux of 18000 lm and a peak luminance of over 1000 cd/mm2 is obtained, with an efficacy of 37 peak lm/W.
TI - LED-based projection source based on luminescent concentration
JF - Proceedings of SPIE
DO - 10.1117/12.2225614
DA - 2016-04-29
UR - https://www.deepdyve.com/lp/spie/led-based-projection-source-based-on-luminescent-concentration-TWJZdbUAk5
SP - 989606
EP - 989606-6
VL - 9896
IS - 
DP - DeepDyve
ER -