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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 26 — Dec. 22, 2008
  • pp: 21641–21646

An analytical model for the illuminance distribution of a power LED

Hongming Yang, JanW. M. Bergmans, Tim C. W. Schenk, Jean-Paul M. G. Linnartz, and Ronald Rietman  »View Author Affiliations

Optics Express, Vol. 16, Issue 26, pp. 21641-21646 (2008)

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Light-emitting diodes (LEDs) will play a major role in future indoor illumination systems. In general, the generalized Lambertian pattern is widely used as the radiation pattern of a single LED. In this letter, we show that the illuminance distribution due to this Lambertian pattern, when projected onto a horizontal surface such as a floor, can be well approximated by a Gaussian function.

© 2008 Optical Society of America

OCIS Codes
(150.2950) Machine vision : Illumination
(230.3670) Optical devices : Light-emitting diodes

ToC Category:
Optical Devices

Original Manuscript: July 30, 2008
Revised Manuscript: November 28, 2008
Manuscript Accepted: December 4, 2008
Published: December 16, 2008

Hongming Yang, Jan W. M. Bergmans, Tim C. W. Schenk, Jean-Paul M. G. Linnartz, and Ronald Rietman, "An analytical model for the illuminance distribution of a power LED," Opt. Express 16, 21641-21646 (2008)

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Fig. 1. Fig. 2. Fig. 3.

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