Illumination characteristics of lighting array using 10 candela-class white LEDs under AC 100 V operation

被引：143

作者：

Tamura, T ^{[1
]}

Setomoto, T ^{[1
]}

Taguchi, T ^{[1
]}

机构：

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

来源：

JOURNAL OF LUMINESCENCE | 2000年 / 87-9卷

关键词：

light-emitting diodes; InGaN; white LED; lighting;

D O I：

10.1016/S0022-2313(99)00588-8

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We describe the basic illumination characteristics of lighting source using 10 cd-class InGaN-based white LED (an efficacy of 15 lm/W) under a driving condition of AC 100 V. 697 white LEDs with series connections were arrayed on a glass epoxy substrate and were driven by adjusting a current of less than 20 mA. The temperature dependence of both the emission spectrum and intensity was measured. The white LED array indicates two distinct electroluminescence peaks at 465 and 555 nm at room temperature, which are related to the radiative recombinations front the InGaN MQW blue LED and from the YAG:Ce phosphor. respectively. We have obtained a maximum luminous intensity of about 30 000 lx and a maximum luminance of 95 000 cd/m(2) from the LED array. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：1180 / 1182

页数：3

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