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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 53, Iss. 20 — Jul. 10, 2014
  • pp: 4420–4430

Modeling LED street lighting

Ivan Moreno, Maximino Avendaño-Alejo, Tonatiuh Saucedo-A, and Alejandra Bugarin  »View Author Affiliations

Applied Optics, Vol. 53, Issue 20, pp. 4420-4430 (2014)

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LED luminaires may deliver precise illumination patterns to control light pollution, comfort, visibility, and light utilization efficiency. Here, we provide simple equations to determine how the light distributes in the streets. In particular, we model the illuminance spatial distribution as a function of Cartesian coordinates on a floor, road, or street. The equations show explicit dependence on the luminary position (pole height and arm length), luminary angle (fixture tilt), and the angular intensity profile (radiation pattern) of the LED luminary. To achieve this, we propose two mathematical representations to model the sophisticated intensity profiles of LED luminaries. Furthermore, we model the light utilization efficiency, illumination uniformity, and veiling luminance of glare due to one or several LED streetlamps.

© 2014 Optical Society of America

OCIS Codes
(080.1510) Geometric optics : Propagation methods
(120.5240) Instrumentation, measurement, and metrology : Photometry
(150.2950) Machine vision : Illumination
(230.3670) Optical devices : Light-emitting diodes
(150.2945) Machine vision : Illumination design

ToC Category:
Optical Devices

Original Manuscript: March 17, 2014
Manuscript Accepted: May 7, 2014
Published: July 3, 2014

Ivan Moreno, Maximino Avendaño-Alejo, Tonatiuh Saucedo-A, and Alejandra Bugarin, "Modeling LED street lighting," Appl. Opt. 53, 4420-4430 (2014)

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