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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 6 — Mar. 19, 2007
  • pp: 3607–3618

Color distribution from multicolor LED arrays

Ivan Moreno and Ulises Contreras  »View Author Affiliations


Optics Express, Vol. 15, Issue 6, pp. 3607-3618 (2007)
http://dx.doi.org/10.1364/OE.15.003607


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Abstract

We describe a fully-analytical, simple yet sufficiently accurate method to compute the color pattern of the light emitted from multicolor light-emitting diode (LED) assemblies. Spatial distributions for both color variation and correlated color temperature (CCT) as a function of typical parameters of influence, such as LED spectrum, spatial distribution of LED radiation, target distance, LED-to-LED spacing, and number of LEDs, are shown. To illustrate the method, we simulate and analyze the color patterns of linear, ring, and square RGB (red, green, and blue) arrays for Lambertian-type, batwing, and side emitting LEDs. Our theory may be useful to choose the optimal value for both the array configuration and the array-diffuser distance for lighting systems with color mixing devices.

© 2007 Optical Society of America

OCIS Codes
(220.4830) Optical design and fabrication : Systems design
(230.3670) Optical devices : Light-emitting diodes
(330.1690) Vision, color, and visual optics : Color

ToC Category:
Vision, Color, and Visual Optics

History
Original Manuscript: December 19, 2006
Revised Manuscript: February 27, 2007
Manuscript Accepted: February 28, 2007
Published: March 19, 2007

Virtual Issues
Vol. 2, Iss. 4 Virtual Journal for Biomedical Optics

Citation
Ivan Moreno and Ulises Contreras, "Color distribution from multicolor LED arrays," Opt. Express 15, 3607-3618 (2007)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-15-6-3607


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