Characteristics of high-efficient InGaN-based white LED lighting

被引：14

作者：

Uchida, Y ^{[1
]}

Setomoto, T ^{[1
]}

Taguchi, T ^{[1
]}

Nakagawa, Y ^{[1
]}

Miyazaki, K ^{[1
]}

机构：

[1] Yamaguchi Univ, Fac Engn, Dept Elect & Elect Engn, Yamaguchi 7558611, Japan

来源：

DISPLAY TECHNOLOGIES III | 2000年 / 4079卷

关键词：

InGaN; white LED lighting; YAG phosphor; luminous efficacy; LED lighting theory;

D O I：

10.1117/12.389397

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The basic illumination characteristics of an efficient white LEDs lighting source, which is composed of cannon-ball type 10 ed-class InGaN-based white LEDs, are described. It is noted that the temperature and forward-bias current dependence under full wave rectification of AC 100 V gives a significant effect to both electroluminescence properties and luminous efficacy. We have obtained a maximum luminous intensity of 95000 cd/m(2) and a luminous efficacy of about 27 1m/W at an electric power of 20 W (at a constant current of 10 mi.). The developed white LEDs lighting source indicates two injection electroluminescence peaks at 465 and 555 nm, which are originated from a blue LED and a YAG:Ce3+ phosphor, respectively. The illuminance distribution of the LED lighting source was analyzed using our "multi sources of LED light" theory. We have performed the design of a street lighting as the practical application using the 700 LEDs array lighting source.

引用

页码：120 / 126

页数：7