摘要
为了定量分析LED照明非视觉生物效应随色温的变化规律,选择8种大色温范围(2678~7258K)的LED照明光源,特别是超低色温LED,采集380~800nm可见光波段光谱分布数据。分别计算8种LED照明光源的1931CIE-XYZ标准色度系统色坐标Z值、415~508nm波段蓝光占比RC和节律因子KC,并采用最小二乘法进行线性拟合。研究结果表明:当色温在2678~7258K之间时,LED照明光源非视觉生物效应随色温的增大而增强;1931CIE-XYZ标准色度系统色坐标Z值和415~508nm波段蓝光占比可定量表征非视觉生物效应强弱;色坐标Z值、415~508nm波段蓝光占比RC和节律因子KC随色温变化的函数表达式分别为Z=0.01499+5.24009×10^-5×TC,RC=1.41985+0.00508×TC,KC=0.11895+6.06953×10^-4×TC,相关系数平方R2分别为0.94427,0.93589,0.9598。色坐标Z值与节律因子KC、415~508nm蓝光占比RC与节律因子KC的函数表达式分别为KC=11.40331×Z-0.01209,KC=0.11698×RC+0.00618,相关系数平方R2分别为0.97991和0.97644。以上结论可为LED照明光源非视觉生物效应的定量分析以及高品质健康LED照明产品的开发提供参考。
In this study,eight LED lighting sources with a large color-temperature range(2678-7258K),especially the ultralow-color-temperature LED,are selected to quantitatively analyze the variation in the non-visual biological effect of LED lighting with the color temperature.The spectral distribution data for the visible band at 380-800nm are collected.The color-coordinate Z value of the 1931CIE-XYZ standard chromaticity system,the blue-light proportion RCof the 415-508-nm band,and the rhythm factor KCdenote that the non-visual biological effect of the LED light source increases along with an increase in the color temperature from 2678Kto 7258K.Furthermore,the color-coordinate Zvalue of the 1931CIE-XYZstandard colorimetric system and the blue-light proportion at 415-508nm can be used for quantitatively characterizing the strength of the non-visual biological effect.The functional expressions with respect to the changes in the color-coordinate Zvalue,the blue-light proportion RCin 415-508nm,and the rhythm factor KC with the color temperature are Z=0.01499+5.24009×10^-5×TC,RC=1.41985+0.00508×TC,and KC=0.11895+6.06953×10^-4×TC,respectively.Further,the corresponding squares of the correlation coefficient R2 are 0.94427,0.93589,and 0.9598.The functional expressions of the color-coordinate Z value and the blue-light proportion RC at 415-508nm with respect to the rhythm factor KC are KC=11.40331×Z-0.01209and KC=0.11698×RC+0.00618,respectively;the squares of the correlation coefficient R2 are 0.97991and 0.97644,respectively.These observations can be used for the quantitative analysis of the non-visual biological effect of the LED lighting sources and provide guidance for the development of high-quality-health LED illumination products.
作者
杨超普
方文卿
韩昌万
阳帆
刘明宝
Yang Chaopu;Fang Wenqing;Han Changwan;Yang Fan;Liu Mingbao(College of Chemical Engineering and Modern Materials,Shangluo University,Shangluo,Shaanxi 726000,China;School of Materials Science and Engineering,Nanchang University,Nanchang,Jiangxi 330031,China;National Engineering Technology Research Center for LED on Silicon Substrate,Nanchang University,Nanchang,Jiangxi 330047,China;Shaanxi Key Laboratory of Comprehensive Utilization of Tailings Resources,Shangluo University,Shangluo,Shaanxi 726000,China)
出处
《激光与光电子学进展》
CSCD
北大核心
2019年第24期251-257,共7页
Laser & Optoelectronics Progress
基金
国家重点研发计划“战略性先进电子材料”重点专项（2017YFB0403700）
陕西省教育厅专项科研计划（16JK1241）
商洛市科技计划（SK2015-29）
关键词
视觉光学
LED
色温
非视觉生物效应
visual optics
LED
color temperature
non-visual biological effect
