High uniformity in angular correlated-color-temperature distribution of white LEDs from 2800K to 6500K

Opt Express. 2012 Mar 12;20(6):6622-30. doi: 10.1364/OE.20.006622.

Abstract

In this paper, to our best knowledge, it is the first time to present a precise simulation and detailed design of angular correlated color temperature (CCT) distribution of white LEDs covering a range of CCT from 2800K to 6500K. An optimized design of packaging structure with a silicone lens covering a phosphor dome performed an extreme small angular CCT deviation of 105K in the simulation and 182K in a corresponding real sample for a white LED with the CCT near 6500K.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Color
  • Computer Simulation
  • Computer-Aided Design*
  • Equipment Design
  • Equipment Failure Analysis
  • Lighting / instrumentation*
  • Models, Theoretical*
  • Semiconductors*
  • Temperature