標題: Light-emitting diodes on curved ceramic substrate with primary optics for modification of luminous intensity
作者: Wei, An-Chi
Sze, Jyh-Rou
Chern, Jyh-Long
光電工程學系
Department of Photonics
關鍵字: light-emitting diode lighting;curved substrate;ceramic substrate;light-emitting diodes;primary optics
公開日期: 20-四月-2012
摘要: Unlike the conventional light-emitting diode (LED) luminaire with a planar substrate and only the forward emission, the proposed LED luminaire with a curved ceramic substrate can perform both the forward and the backward emissions and inherits the merits of good heat-dissipation and low cost from the ceramic substrate. Assembled with the proper primary optics, an illustrated LED bulb has been designed, fabricated and measured. The measured luminous intensity of the LED bulb has shown the backward emission and designed distribution with the beam-angle of 133 deg. To broaden the application areas, such a LED bulb on a curved substrate has been modularized as a streetlight. The measured results of the proposed streetlight have shown that the beam angle of the luminous intensity and the luminaire efficiency are 132 deg and 86%, respectively. Meanwhile, its luminous characteristics also fit the Chinese standard for lighting design of urban roads. (c) 2012 Society of Photo-Optical Instrumentation Engineers (SPIE). [DOI: 10.1117/1.JPE.2.026501]
URI: http://dx.doi.org/10.1117/1.JPE.2.026501
http://hdl.handle.net/11536/16997
ISSN: 1947-7988
DOI: 10.1117/1.JPE.2.026501
期刊: JOURNAL OF PHOTONICS FOR ENERGY
Volume: 2
Issue: 
結束頁: 
顯示於類別:期刊論文


文件中的檔案:

  1. 000309175400001.pdf