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

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

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.

Original languageEnglish
Title of host publicationCurrent Developments in Lens Design and Optical Engineering XI; and Advances in Thin Film Coatings VI
DOIs
StatePublished - 2010
EventCurrent Developments in Lens Design and Optical Engineering XI; and Advances in Thin Film Coatings VI - San Diego, CA, United States
Duration: 1 Aug 20103 Aug 2010

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7786
ISSN (Print)0277-786X

Conference

ConferenceCurrent Developments in Lens Design and Optical Engineering XI; and Advances in Thin Film Coatings VI
Country/TerritoryUnited States
CitySan Diego, CA
Period1/08/103/08/10

Keywords

  • CCT
  • Particle number
  • Phosphor

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