Near-/Mid-Field Effect of Color Mixing for Single Phosphor-Converted Light-Emitting Diode Package

被引：17

作者：

Hu, Run ^{[1
]}

Yu, Shan ^{[2
]}

Zou, Yong ^{[1
]}

Zheng, Huai ^{[1
]}

Wang, Fei ^{[2
]}

Liu, Sheng ^{[2
,3
]}

Luo, Xiaobing ^{[1
,2
]}

机构：

[1] Huazhong Univ Sci & Technol, Sch Energy & Power Engn, Wuhan 430074, Peoples R China

[2] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Peoples R China

[3] Huazhong Univ Sci & Technol, Sch Mech Sci & Engn, Wuhan 430074, Peoples R China

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2013年 / 25卷 / 03期

关键词：

Color mixing; light-emitting diode (LED); near-/mid-field effect; phosphor; SCATTERING;

D O I：

10.1109/LPT.2012.2230618

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：

In this letter, it is found through both experiments and Monte Carlo ray-tracing simulations that the working distances would influence the correlated color temperature (CCT) and the angular color uniformity (ACU) of single phosphor-converted light-emitting diode (pc-LED) package. When the working distance decreases, the CCT decreases and the ACU deteriorates. The deterioration caused by short distance is regarded as the near-/mid-field effect of color mixing of pc-LED. This discovery of the near-/mid-field effect may help to find some specific packaging methods to control color mixing and improve white light quality for some applications where the working distance was short.

引用

页码：246 / 249

页数：4

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