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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 9 — May. 6, 2013
  • pp: 10612–10621

High-performance LED street lighting using microlens arrays

Xuan-Hao Lee, Ivan Moreno, and Ching-Cherng Sun  »View Author Affiliations

Optics Express, Vol. 21, Issue 9, pp. 10612-10621 (2013)

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An efficient LED lamp that illuminates the street with high quality is presented. The luminaire shows high optical efficiency, high optical utilization factor, low glare, and illuminates the street with high uniformity. The concept is simple but effective: a cluster of LEDs with TIR lenses are put inside a reflective box, which is covered with a microlens sheet; the reflective cavity improves efficiency by light recycling; each TIR lens collimates the LED light for the microlens array; and the microlens sheet uniformly distributes light only into the street. We verify its feasibility by Monte Carlo ray-tracing for the main types of road lighting arrangements: central, zigzag, and single-side pole positions.

© 2013 OSA

OCIS Codes
(150.2950) Machine vision : Illumination
(220.0220) Optical design and fabrication : Optical design and fabrication
(230.3670) Optical devices : Light-emitting diodes
(150.2945) Machine vision : Illumination design
(080.4295) Geometric optics : Nonimaging optical systems

ToC Category:
Optical Devices

Original Manuscript: December 11, 2012
Manuscript Accepted: March 7, 2013
Published: April 24, 2013

Xuan-Hao Lee, Ivan Moreno, and Ching-Cherng Sun, "High-performance LED street lighting using microlens arrays," Opt. Express 21, 10612-10621 (2013)

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