白光LED荧光粉层的光学设计及研究

车振; 张军; 余新宇; 陈哲

doi:10.3788/fgxb20153610.1220

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白光LED荧光粉层的光学设计及研究

发光学应用及交叉前沿 | 更新时间：2020-08-12

- 白光LED荧光粉层的光学设计及研究
- Optical Design and Research on Phosphors for White LED
- 发光学报 2015年36卷第10期页码：1220-1226
- 作者机构：
  
  1. 暨南大学光电工程系, 广东广州 510632
  2. 暨南大学光电信息与传感技术广东普通高校重点实验室, 广东广州 510632
- 作者简介：
- 基金信息：
  
  国家自然科学基金(61177075,61275046,61475066,61405075)();广东省战略性新兴产业核心技术攻关项目 (2012A032300016,2
- DOI：10.3788/fgxb20153610.1220
  中图分类号： O482.31
- 纸质出版日期：2015-10-10，
  
  收稿日期：2015-6-21，
  
  修回日期：2015-7-25，
扫描看全文
车振, 张军, 余新宇等. 白光LED荧光粉层的光学设计及研究[J]. 发光学报, 2015,36(10): 1220-1226

CHE Zhen, ZHANG Jun, YU Xin-yu etc. Optical Design and Research on Phosphors for White LED[J]. Chinese Journal of Luminescence, 2015,36(10): 1220-1226
车振, 张军, 余新宇等. 白光LED荧光粉层的光学设计及研究[J]. 发光学报, 2015,36(10): 1220-1226 DOI： 10.3788/fgxb20153610.1220.

CHE Zhen, ZHANG Jun, YU Xin-yu etc. Optical Design and Research on Phosphors for White LED[J]. Chinese Journal of Luminescence, 2015,36(10): 1220-1226 DOI： 10.3788/fgxb20153610.1220.

摘要

荧光粉粒子浓度的优化设计是改善白光LED颜色品质和流明效率的重要手段。通过光学仿真方法可以分析荧光粉层不同粒子浓度对LED光强分布和色度均匀性的影响。仿真结果表明

随着荧光粉粒子浓度的增加

荧光粉层对蓝光的散射和吸收增强

LED的流明效率增大

光强分布逐渐变均匀

光斑的色度由蓝光逐渐向白光转变。当荧光粉的粒子浓度为10

/mm

时

LED的光强分布最均匀

接近朗伯余弦分布。此时

LED光斑的色度坐标接近等能白光源

色度均匀性的空间分布较好。

Abstract

The optimal design of the particle number concentration of phosphor is an important way to improve the color quality and lumen efficiency of white LED. Through the method of optical simulation

the optical properties were analyzed under the influence of different particle number concentrations. According to the simulation results

with the increasing of the particle number concentration of phosphor

the absorption and scattering of blue light are strengthened. It is helpful to get the higher luminous efficiency

the better white light spot and uniform chrominance. When the particle number concentration of phosphor is at level of 10

/mm

the LED light spot has the most uniform light intensity distribution and chrominance

and approximates the standard white light source.

关键词

LED光学仿真荧光粉粒子浓度流明效率

Keywords

LEDoptical simulationphosphorsparticle number concentrationluminous efficiency

references

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Li L, Jin S Z, Cen S Y, et al. Influence of phosphor concentration and current intensity on phosphor-based white LED characteristics [J]. Laser Optoelectron. Prog.(激光与光电子学进展), 2012, 49(3):032301-1-6 (in Chinese).

Sommer C, Hartmann P, Pachler P, et al. A detailed study on the requirements for angular homogeneity of phosphor converted high power white LED light sources [J]. Opt. Mater., 2009, 31(6):837-848.

Sommer C, Krenn J R, Hartmann P, et al. The effect of the phosphor particle sizes on the angular homogeneity of phosphor-converted high-power white LED light sources [J]. IEEE J. Sel. Top. Quant. Electron., 2009, 15(4):1181-1188.

Sommer C, Wenzl F P, Hartmann P, et al. Tailoring of the color conversion elements in phosphor-converted high-power LEDs by optical simulations [J]. IEEE Photon. Technol. Lett., 2008, 20(9):739-741.

Xu G F, Rao H B, Yu X M, et al. Improvement of optical uniformity of white LEDs [J]. Chin. J. Lumin.(发光学报), 2008, 29(4):707-712 (in Chinese).

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