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Energy Express

Energy Express

  • Editor: Christian Seassal
  • Vol. 20, Iss. S6 — Nov. 5, 2012
  • pp: A843–A855

Designing LED array for uniform illumination distribution by simulated annealing algorithm

Zhouping Su, Donglin Xue, and Zhicheng Ji  »View Author Affiliations

Optics Express, Vol. 20, Issue S6, pp. A843-A855 (2012)

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We propose a numerical optimization method designing LED array for achieving a good uniform illumination distribution on target plane. Simulated annealing algorithm is employed to optimize LED array arrangement. Using the method, we optimized three LED arrays with various luminous intensity profiles. In order to exhibit the design freedom of the method, we use some LEDs with different intensity value in the first and third array, respectively. By optimizing, the three arrays all produced highly uniform illumination distribution with the uniformity of 0.12, 0.23 and 0.13, respectively. It indicates our method can design various luminous intensity distribution LED arrays and design array consisting of LEDs with different intensity value. In addition, the method is simple and can optimize the LED array automatically by computer program. To the best of our knowledge, it is first time to use numerical optimization method to design the optimal LED array arrangement for uniform irradiance.

© 2012 OSA

OCIS Codes
(230.3670) Optical devices : Light-emitting diodes
(080.1753) Geometric optics : Computation methods
(220.2945) Optical design and fabrication : Illumination design
(220.4298) Optical design and fabrication : Nonimaging optics

ToC Category:
Illumination Design

Original Manuscript: July 9, 2012
Revised Manuscript: September 1, 2012
Manuscript Accepted: September 19, 2012
Published: September 28, 2012

Zhouping Su, Donglin Xue, and Zhicheng Ji, "Designing LED array for uniform illumination distribution by simulated annealing algorithm," Opt. Express 20, A843-A855 (2012)

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