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Energy Express

Energy Express

  • Editor: Bernard Kippelen
  • Vol. 18, Iss. S2 — Jun. 21, 2010
  • pp: A221–A230

Integration of Non-Lambertian LED and Reflective Optical Element as Efficient Street Lamp

Jui-Wen Pan, Sheng-Han Tu, Wen-Shing Sun, Chih-Ming Wang, and Jenq-Yang Chang  »View Author Affiliations


Optics Express, Vol. 18, Issue S2, pp. A221-A230 (2010)
http://dx.doi.org/10.1364/OE.18.00A221


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Abstract

A cost effictive, high throughput, and high yield method for the increase of street lamp potency was proposed in this paper. We integrated the imprinting technology and the reflective optical element to obtain a street lamp with high illumination efficiency and without glare effect. The imprinting technique can increase the light extraction efficiency and modulate the intensity distribution in the chip level. The non-Lambertian light source was achieved by using imprinting technique. The compact reflective optical element was added to efficiently suppress the emitting light intensity with small emitting angle for the uniform of illumination intensity and excluded the light with high emitting angle for the prevention of glare. Compared to the conventional street lamp, the novel design has 40% enhancement in illumination intensity, the uniform illumination and the glare effect elimination.

© 2010 OSA

OCIS Codes
(220.4830) Optical design and fabrication : Systems design
(350.3950) Other areas of optics : Micro-optics

ToC Category:
Light-Emitting Diodes

History
Original Manuscript: April 2, 2010
Revised Manuscript: May 14, 2010
Manuscript Accepted: May 26, 2010
Published: June 9, 2010

Citation
Jui-Wen Pan, Sheng-Han Tu, Wen-Shing Sun, Chih-Ming Wang, and Jenq-Yang Chang, "Integration of Non-Lambertian LED and Reflective Optical Element as Efficient Street Lamp," Opt. Express 18, A221-A230 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-S2-A221


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