Near-ultraviolet LED of the external quantum efficiency over 45% and its application to high-color rendering phosphor conversation white LEDs

被引：0

作者：

Sakuta, Hiroaki ^{[1
]}

Fukui, Takeshi ^{[1
]}

Miyachi, Tsutomu ^{[1
]}

Kamon, Kunihito ^{[2
]}

Hayashi, Hideki ^{[2
]}

Nakamura, Nobutaka ^{[3
]}

Uchida, Yuji ^{[2
]}

Kurai, Satoshi ^{[1
]}

Taguchi, Tsunemasa ^{[1
]}

机构：

[1] Graduate School of Science and Engineering, Yamaguchi University, Yamaguchi, Japan

[2] Faculty of Engineering, Yamaguchi University, Yamaguchi, Japan

[3] Choshu Industry CO., LTD, Japan

来源：

Journal of Light and Visual Environment | 2008年 / 32卷 / 01期

关键词：

Quantum efficiency - Light emission - Light emitting diodes - Color;

D O I：

10.2150/jlve.32.39

中图分类号：

学科分类号：

摘要：

Highly luminous efficiency and color rendering index (CRI) of 70 lm/W and 95 under low correlated color temperature (CCT) of 3177 K has been obtained by phosphor conversion (PC) white light-emitting diodes (LEDs) using near-ultra violet (n-UV) LEDs with the external quantum efficiency (EQE) of 46.7%. The homogenous spatial color uniformity on chromaticity of PC white LEDs excited by n-UV LEDs are particularly adequate to the general lighting applications.

引用

页码：39 / 42

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