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低蓝光危害的白光LED光源的光谱设计与优化

Spectral Design and Optimization of White LED Light Sources with Low Blue Light Hazard

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摘要

通过测试15个白光LED球泡灯的光谱分布及蓝光危害值、色温、功率、光效等参数,研究了灯源的蓝光危害值与光谱结构的关系,计算了叠加单色光光谱后新光谱结构的蓝光危害值。结果表明在长波段和短波段同时叠加两个不同幅值的单色光光谱时,可以得到色温基本保持不变、蓝光危害值降低的光谱结构光源,其显色指数得以提高,但光效变化略有降低,实现了通过优化光谱来降低白光LED球泡灯蓝光危害值、提高光源显色指数的目的。

Abstract

We study the relationship between the blue light hazard value and spectral structure of a light source by measuring the spectral distributions of 15 white LED bulbs and various parameters such as the blue hazard value, color temperature, power, and luminous efficiency. A numerical method is employed to calculate the blue light hazard value of the new spectral structure which is formed by superimposing a monochromatic light spectrum on the spectrum of the original sources. The results demonstrate that the color temperature of the light source remains effectively unchanged when two monochromatic light spectra with different amplitudes are superimposed on both long- and short-wavelength bands; however, the blue light hazard value is reduced, and the color rendering index is increased; further, the luminous efficiency of the light source is slightly reduced. Subsequently, the reduction of the blue light hazard value can be realized using the spectral superposition method, which can simultaneously improve the color rendering index of the light source.

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DOI:10.3788/LOP56.182302

所属栏目:光学器件

基金项目:福建省光电技术与器件重点实验室开放课题、华侨大学研究生科研创新能力培育项目;

收稿日期:2019-03-04

修改稿日期:2019-04-17

网络出版日期:2019-09-01

作者单位    点击查看

周孟欣:华侨大学信息科学与工程学院, 福建省光传输与变换重点实验室, 福建 厦门 361021
朱大庆:华侨大学信息科学与工程学院, 福建省光传输与变换重点实验室, 福建 厦门 361021
廖欣怡:华侨大学信息科学与工程学院, 福建省光传输与变换重点实验室, 福建 厦门 361021

联系人作者:朱大庆(zhudaqing@huq.edu.cn)

备注:福建省光电技术与器件重点实验室开放课题、华侨大学研究生科研创新能力培育项目;

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引用该论文

Mengxin Zhou,Daqing Zhu,Xinyi Liao. Spectral Design and Optimization of White LED Light Sources with Low Blue Light Hazard[J]. Laser & Optoelectronics Progress, 2019, 56(18): 182302

周孟欣,朱大庆,廖欣怡. 低蓝光危害的白光LED光源的光谱设计与优化[J]. 激光与光电子学进展, 2019, 56(18): 182302

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