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Elimination of flux loss by optimizing the groove angle in modified Fresnel lens to increase illuminance uniformity, color uniformity and flux efficiency in LED illumination
Kim, Byungwook, Choi, Minseok, Kim, Hokwan, Lim, Jiseok, Kang, ShinillVolume:
17
Year:
2009
Language:
english
Journal:
oe/17/20/oe-17-20-17916.pdf
DOI:
10.1364/OE.17.017916
File:
PDF, 1.04 MB
english, 2009