期刊
OPTICS EXPRESS
卷 24, 期 14, 页码 A1069-A1074出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.24.0A1069
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The concept of a high-luminance light source based on luminescent conversion of LED light and optical concentration in a transparent phosphor is explained. Experiments on a realized light source show that a luminous flux of 8500 lm and a luminance of 500 cd/mm(2) can be attained using 56 pump LEDs at 330 W electrical input power. The measurement results are compared to optical simulations, showing that the experimental optical efficiency is slightly lower than expected. The present status enables applications like mid-segment digital projection using LED technology, whereas the concept is scalable to higher fluxes. (C) 2016 Optical Society of America
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