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Proceedings Paper

Performance of white PC LEDs based on violet chips
Author(s): Emil Radkov; Zena Brown; Ilona Hausmann; James Reginelli
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Paper Abstract

The performance of white pc LEDs based on violet chips is analyzed in terms of several metrics (lm/W, mW/lm, and package efficiency). A calculation is developed to evaluate package efficiency using spectroradiometric measurements and accounting for extraneous factors (Stokes' loss, luminous efficacy of the phosphor and bleed). The method is demonstrated on a state of the art "warm white" power LED, and performance entitlement is also discussed.

Paper Details

Date Published: 12 September 2006
PDF: 4 pages
Proc. SPIE 6337, Sixth International Conference on Solid State Lighting, 63370K (12 September 2006); doi: 10.1117/12.679482
Show Author Affiliations
Emil Radkov, GELcore, LLC (United States)
Zena Brown, GELcore, LLC (United States)
Ilona Hausmann, GELcore, LLC (United States)
James Reginelli, GELcore, LLC (United States)


Published in SPIE Proceedings Vol. 6337:
Sixth International Conference on Solid State Lighting
Ian T. Ferguson; Nadarajah Narendran; Tsunemasa Taguchi; Ian E. Ashdown, Editor(s)

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