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Conference Paper
Optics for Solar Energy
Eindhoven Netherlands
November 11-14, 2012
ISBN: 978-1-55752-952-7
Joint Poster Session (JM5A)

Spectral analysis of angular color uniformity in a white LED based on a yellow phosphor

donghun Mun, Hyemin Park, Dae-Chan Kim, Beom-Hoan O, Se-Geun Park, El-Hang Lee, Seung Gol Lee, Seung-a Choi, and Seokchan Hong  »View Author Affiliations


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The color ring phenomenon observed at a white LED with a beam-spreading optics was numerically treated by angular spectrum analysis, and could be explained with the incoincidence of emission points of blue and yellow lights.

© 2012 OSA

OCIS Codes
(070.4790) Fourier optics and signal processing : Spectrum analysis
(230.3670) Optical devices : Light-emitting diodes
(330.1710) Vision, color, and visual optics : Color, measurement

d. Mun, H. Park, D. Kim, B. O, S. Park, E. Lee, S. G. Lee, S. Choi, and S. Hong, "Spectral analysis of angular color uniformity in a white LED based on a yellow phosphor," in Renewable Energy and the Environment Optics and Photonics Congress, OSA Technical Digest (online) (Optical Society of America, 2012), paper JM5A.25.

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