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Proceedings Paper

Optical performance as a function of phosphor particle number in white LED
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Paper Abstract

In this paper, we demonstrate a method to calculate the phosphor particle numbers and study the relationship among phosphor particle numbers, light output and correlated color temperature (CCT) of LEDs under remote package type and dispensing package type. We also discuss the influence of the thickness and concentration of phosphors on the performance of LEDs. We compare the various thicknesses and concentrations to check the resultant CCT and the output flux, where we can see that the lumen output is almost equal as the phosphor particle numbers is similar with the CCT at 6500±200 and 5000±100 K under the remote package type.

Paper Details

Date Published: 20 August 2010
PDF: 5 pages
Proc. SPIE 7786, Current Developments in Lens Design and Optical Engineering XI; and Advances in Thin Film Coatings VI, 778606 (20 August 2010); doi: 10.1117/12.861036
Show Author Affiliations
Cheng-Chien Chen, National Central Univ. (Taiwan)
Ching-Yi Chen, National Central Univ. (Taiwan)
Wei-Ting Chien, National Central Univ. (Taiwan)
Tsung-Hsun Yang, National Central Univ. (Taiwan)
Ching-Cherng Sun, National Central Univ. (Taiwan)


Published in SPIE Proceedings Vol. 7786:
Current Developments in Lens Design and Optical Engineering XI; and Advances in Thin Film Coatings VI
R. Barry Johnson; Virendra N. Mahajan; Simon Thibault, Editor(s)

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