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

Cheng-Chien Chen; Ching-Yi Chen; Wei-Ting Chien; Tsung-Hsun Yang; Ching-Cherng Sun

doi:10.1117/12.861036

19 August 2010 Optical performance as a function of phosphor particle number in white LED

Cheng-Chien Chen, Ching-Yi Chen, Wei-Ting Chien, Tsung-Hsun Yang, Ching-Cherng Sun

Proceedings Volume 7786, Current Developments in Lens Design and Optical Engineering XI; and Advances in Thin Film Coatings VI; 778606 (2010) https://doi.org/10.1117/12.861036
Event: SPIE Optical Engineering + Applications, 2010, San Diego, California, United States

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.

Citation Download Citation

Cheng-Chien Chen, Ching-Yi Chen, Wei-Ting Chien, Tsung-Hsun Yang, and Ching-Cherng Sun "Optical performance as a function of phosphor particle number in white LED", Proc. SPIE 7786, Current Developments in Lens Design and Optical Engineering XI; and Advances in Thin Film Coatings VI, 778606 (19 August 2010); https://doi.org/10.1117/12.861036

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