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

共 16 条

[11] A detailed study on the requirements for angular homogeneity of phosphor converted high power white LED light sources [J].

Sommer, Christian ;

Hartmann, Paul ;

Pachler, Peter ;

Schweighart, Marko ;

Tasch, Stefan ;

Leising, Guenther ;

Wenzl, Franz P. .

OPTICAL MATERIALS, 2009, 31 (06) :837-848

[12] Precise optical modeling for LED lighting verified by cross correlation in the midfield region [J].

Sun, Ching-Cherng ;

Lee, Tsung-Xian ;

Ma, Shih-Hsin ;

Lee, Ya-Luan ;

Huang, Shih-Ming .

OPTICS LETTERS, 2006, 31 (14) :2193-2195

[13] High uniformity in angular correlated-color-temperature distribution of white LEDs from 2800K to 6500K [J].

Sun, Ching-Cherng ;

Chen, Ching-Yi ;

Chen, Cheng-Chien ;

Chiu, Chih-Yu ;

Peng, Yi-Ning ;

Wang, Yu-Huan ;

Yang, Tsung-Hsun ;

Chung, Te-Yuan ;

Chung, Cheng-Yang .

OPTICS EXPRESS, 2012, 20 (06) :6622-6630

[14] Analysis of the far-field region of LEDs [J].

Sun, Ching-Cherng ;

Chien, Wei-Ting ;

Moreno, Ivan ;

Hsieh, Chih-Ching ;

Lo, Yi-Chien .

OPTICS EXPRESS, 2009, 17 (16) :13918-13927

[15]

Tu Yan, 2007, P SOC PHOTO-OPT INS, V6828

[16] Angular CCT Uniformity of Phosphor Converted White LEDs: Effects of Phosphor Materials and Packaging Structures [J].

Yun Shuai ;

He, Yongzhi ;

Tran, Nguyen T. ;

Shi, Frank G. .

IEEE PHOTONICS TECHNOLOGY LETTERS, 2011, 23 (03) :137-139

← 1 2 →