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Optical Engineering

Modification to a single Gauss simulation of a phosphor coated light-emitting diode
Author(s): Jin Huaizhou; Shangzhong Jin; Kun Yuan; Songyuan Cen
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Paper Abstract

When designing a light-emitting diode (LED), to avoid the material and time cost in packaging and testing, a Gauss function is usually used to simulate its performance. However, for YAG:Ce phosphor coated LEDs (PC-LEDs), such a simulation is often inaccurate. The Gauss-simulated spectra are compared to spectra measured from respective LEDs, and the method of moving the YAG:Ce peak to the right in Gauss simulation is proposed. The amount depends on the kind of YAG:Ce phospher and the kind of blue light. Then PC-LEDs are designed using the modified Gauss simulation under specific performance requirements, and the packaged LEDs have performance that is acceptable for these requirements. Designing with modified Gauss simulation is particularly effective for pure white LEDs.

Paper Details

Date Published: 1 August 2013
PDF: 10 pages
Opt. Eng. 52(8) 087102 doi: 10.1117/1.OE.52.8.087102
Published in: Optical Engineering Volume 52, Issue 8
Show Author Affiliations
Jin Huaizhou, China Jiliang Univ. (China)
Shangzhong Jin, China Jiliang Univ. (China)
Kun Yuan, China Jiliang Univ. (China)
Songyuan Cen, China Jiliang Univ. (China)


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