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

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/50987

Title:	Integration of Non-Lambertian LED and Reflective Optical Element as Efficient Street Lamp
Authors:	Pan,JW;Tu,SH;Sun,WS;Wang,CM;Chang,JY
Contributors:	光電科學與工程學系
Keywords:	LIGHT-EMITTING DIODE;EXTRACTION-EFFICIENCY
Date:	2010
Issue Date:	2012-03-27 18:14:44 (UTC+8)
Publisher:	國立中央大學
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. (C) 2010 Optical Society of America
Relation:	OPTICS EXPRESS
Appears in Collections:	[Department of Optics and Photonics] journal & Dissertation

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