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Proceedings Paper

Light-emitting diode lamp design by Monte Carlo photon simulation
Author(s): Song Jae Lee
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Paper Abstract

In this presentation, basic elements of light-emitting diode (LED) lamp design are discussed. In practical applications of LED lamps, the far-field photon distribution pattern is one of the important considerations. Both the reflecting cup and lens surface profile employed in the design can be flexibly adjusted by a few parameters such that the far field photon distribution pattern is rather easily manipulated. For simulation of LED lamps, we have used Monte Carlo photon simulation method. Based on simulation results, we can verify or explain the effect of the various LED lamp design parameters on far-field patterns. Some of the important design examples are LED lamps with far-field patterns that are either tilted by certain angle in the vertical direction or double- lobed in the horizontal direction. LED lamps of this type of far-field patterns may find some application in some special outdoor displays, for instance, in a large stadium.

Paper Details

Date Published: 14 May 2001
PDF: 10 pages
Proc. SPIE 4278, Light-Emitting Diodes: Research, Manufacturing, and Applications V, (14 May 2001); doi: 10.1117/12.426838
Show Author Affiliations
Song Jae Lee, Chungnam National Univ. (South Korea)


Published in SPIE Proceedings Vol. 4278:
Light-Emitting Diodes: Research, Manufacturing, and Applications V
H. Walter Yao; E. Fred Schubert, Editor(s)

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