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1. 苏州科技大学 电子与信息工程学院, 江苏 苏州 215009
2. 苏州市虚拟现实智能交互及应用技术重点实验室, 江苏 苏州 215009
纸质出版日期:2018-5-5,
网络出版日期:2017-11-7,
收稿日期:2017-8-18,
修回日期:2017-10-17,
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夏振平, 付保川, 程成. 基于冷暖白光LED的线性调光混合照明[J]. 发光学报, 2018,39(5): 730-736
XIA Zhen-ping, FU Bao-chuan, CHENG Cheng. Mixed Lighting Based on Linear Dimming of Cold and Warm White LEDs[J]. Chinese Journal of Luminescence, 2018,39(5): 730-736
夏振平, 付保川, 程成. 基于冷暖白光LED的线性调光混合照明[J]. 发光学报, 2018,39(5): 730-736 DOI: 10.3788/fgxb20183905.0730.
XIA Zhen-ping, FU Bao-chuan, CHENG Cheng. Mixed Lighting Based on Linear Dimming of Cold and Warm White LEDs[J]. Chinese Journal of Luminescence, 2018,39(5): 730-736 DOI: 10.3788/fgxb20183905.0730.
为了提供高品质、更安全和智能的照明光源,基于冷暖白光LED建立了线性调光混合照明系统及其优化调光调色方法。混合照明光源以色温和明度等级分别设定光色度和光强度,更加符合人性化需求。在系统智能优化配光过程中,设定色温转换为CIE
u'v'
均匀色品坐标,明度转换为亮度,使优化计算更加精确。系统采用的线性调光避免了闪烁潜在的安全风险,同时配合优化算法解决了线性调光色度漂移大的问题。实验结果表明,系统混合光的色度稳定性可以保持在1阶CIE
u'v'
圆内,相应色度设定下的整个光强度调节范围内无可察觉的色差。理论研究和实验结果表明该混光照明系统简单可行,具有较高的实用价值。
To provide high quality
more safe and intelligent lighting source
the linear dimming mixed lighting system and its dimming and color modulation method were established based on the cold and warm white LEDs. The mixed lighting source set the light color and intensity using color temperature and lightness
which was more accord with humanized requirements. In the procedure of system intelligent light distribution optimization
the color temperature was converted to chromaticity coordinate on the CIE
u'v'
diagram and the lightness was converted to luminance
which made the optimizing computation more precise. The system adopted linear dimming method to avoid safety risk induced by flicker
and the adopted optimization algorithm solved the big color shift problem of linear dimming. The experiment results show that the chromaticity stability of the mixed lighting system can keep within 1-step CIE
u'v'
circle
which means with specific chromaticity setting
there is no perceivable chromatic aberration. The theoretical research and experiment results show that the mixed lighting system is simple
practicable and with high practical value.
白光LED混合照明线性调光色差CIE u'v'圆
white LEDmixed lightinglinear dimmingchromatic aberrationCIE u'v' circle
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周晓明, 罗达, 张惠平. 不同调光方式LED照射下的人体非视觉效应[J]. 发光学报, 2016, 37(7):892-898. ZHOU X M, LUO D, ZHANG H P. Human non-visual effects under LED light with different dimming methods[J]. Chin. J. Lumin., 2016, 37(7):892-898. (in Chinese)
栾新源, 刘廷章, 周壮丽. 基于改进人工鱼群算法的LED混光方法[J]. 发光学报, 2015, 36(1):113-120. LUAN X Y, LIU T Z, ZHOU Z L. LED color mixing design based on improved artificial fish swarm algorithm[J]. Chin. J. Lumin., 2015, 36(1):113-120. (in Chinese)
宋鹏程, 文尚胜. 基于三通道脉冲宽度调制的LED调光调色[J]. 光电子激光, 2015, 26(5):839-846. SONG P C, WEN S S. A dimming method for LEDs based on three-channel pulse width modulation[J]. J. OptoelectronLaser, 2015, 26(5):839-846. (in Chinese)
熊晨雨, 吴玉香, 李杨, 等. RGBW四色LED混光优化在日光模拟中的应用[J]. 光子学报, 2017, 46(8):0823006. XIONG C Y, WU Y X, LI Y, et al.. Application of mixed light optimization of RGBW-LEDs in solar simulation[J]. Acta Photon. Sinica, 2017, 46(8):0823006. (in Chinese)
陈盛雄, 朱大庆, 廖欣怡. 一种预测白光LED相关色温的新方法[J]. 发光学报, 2017, 38(6):820-827. CHEN S X, ZHU D Q, LIAO X Y. A new method for predicting correlated color temperature of white LEDs[J]. Chin. J. Lumin., 2017, 38(6):820-827. (in Chinese)
DYBLE M, NARENDRAN N, BIERMAN A, et al.. Impact of dimming white LEDs:chromaticity shifts due to different dimming methods[J]. SPIE, 2005, 59411:59411H.
胡奕彬, 刘士伟, 刘思远, 等. 双通道PWM的冷暖白光LED混色模型研究[J]. 光电子激光, 2015, 26(11):2089-2095. HU Y B, LIU S W, LIU S Y, et al.. A study on colour mixture model for cold and warm white LEDs based on two-channel PWM[J]. J. Optoelectron.Laser, 2015, 26(11):2089-2095. (in Chinese)
LI C J, CUI G H, MELGOSA M, et al.. Accurate method for computing correlated color temperature[J]. Opt. Express, 2016, 24(13):14066-14078.
GRAVESEN J. The metric of clour space[J]. Graph. Models, 2015, 82:77-86.
黄艳, 任胜东, 陈聪, 等. CIE关于光源色差的最新技术注解解读[J]. 照明工程学报, 2013, 24(6):42-44. HUANG Y, REN S D, CHEN C, et al.. Explanation of CIE new technical note on the colour difference of light sources[J]. J. Lighting Eng., 2013, 24(6):42-44. (in Chinese)
GILCHRIST A. Mapping luminance onto lightness in vision and art[J]. SPIE, 2013, 8651:865105-1.
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