CAJ | 학술논문

将GaN基蓝光激发YAG荧光粉的成白光发光二极管(W-LED)优选后,以串联形式集成为 W-LED 发光模块.分别测试了 W-LED 集成光源模块的光电特性、发光效率以及不同电流驱动下的光源衰减率,并与白炽灯和荧光灯等传统照明光源进行了比较.实验表明:当驱动电流为 14～18 mA时,W-LED 集成光源模块的发光效率可达到 64.46 lm/W,而功耗仅为2.4 W,发挥出了 W-LED 作为照明光源的节能、高可靠和稳定性等优势.经 10 kh 老化测得电流下降较常用灯＜10%.
장GaN기람광격발YAG형광분적성백광발광이겁관(W-LED)우선후,이천련형식집성위 W-LED 발광모괴.분별측시료 W-LED 집성광원모괴적광전특성、발광효솔이급불동전류구동하적광원쇠감솔,병여백치등화형광등등전통조명광원진행료비교.실험표명:당구동전류위 14～18 mA시,W-LED 집성광원모괴적발광효솔가체도 64.46 lm/W,이공모부위2.4 W,발휘출료 W-LED 작위조명광원적절능、고가고화은정성등우세.경 10 kh 노화측득전류하강교상용등＜10%.
The current illumination characteristic of the white light emitting diodes (W-LEDs), the power and effi-ciency of the W-LED illumination module integrated by W-LEDs in series connection were studied and discussed.The optimized current range of the integrated illumination module is from 14 to 18mA. The experiment result shows that the W-LEDs integrated light module processes much lower power consumption (2. 4W), higher lumi-nescence efficiency (64. 461m/W) and longer lifetime, current degradation is ＜10% after 10 kh testing, comparing with that of the traditional lamps, such as tungsten lamp and fluorescent lamp.