三基色白光LED的司辰节律因子研究

采用司辰节律因子模型, 通过计算三基色白光LED光源在不同工作电流下的司辰节律因子, 对可调色温的三基色白光LED光源进行非视觉效应研究。为了获取与自然光非视觉效应类似的LED白光, 建立了司辰节律因子和相关色温分别相对于工作电流的关系模型, 从而已知自然光的司辰节律因子和相关色温, 就可以确定三基色LED的工作电流。通过测试一天内不同时刻的自然光光谱, 根据上述模型推算出了三基色LED的工作电流。在所推算的三基色电流下, 测试了白光LED光谱参数并计算了相应的司辰节律因子。与自然光司辰节律因子的对比结果表明, 理论值和实验值的误差在1.1%以内, 证实该方法具有可行性。本文所呈现的方法对于利用三基色白光LED模拟自然光具有一定的指导意义。

Abstract

The circadian action factor (CAF) model was adopted to study the non-visual biological effects for the three-primary color-tunable white LEDs by calculating CAFs at various driving currents. In order to obtain the white light similar to the natural light according to non-visual biological effects, the models of CAF versus current and CCT versus current were generated. Therefore, the driving currents of three-primary LEDs could be determined after the CAF and the CCT of the natural light were known. Based on aforementioned models, and after the natural light at different times in a day was tested, the driving currents of three-primary LEDs were deduced. Then, driven by these currents, white LEDs were tested and their CAFs were calculated. A comparison between calculated values and experimental counterparts shows that the difference lies within 1.1%, suggesting the feasibility of this approach. This work appears meaningful for mimicking the natural light by using three-primary white LEDs.

参考文献

[1] 甘汝婷,郭震宁,林介本,等. 遗传算法在LED光源光谱匹配技术中的应用［J］. 光子学报, 2014, 43(7):0730003.

GAN R T, GUO Z N, LIN J B, et al.. The genetic algorithm in the application of the LED light source spectral matching technology ［J］. Acta Photon. Sinica, 2014, 43(7):0730003. (in Chinese)

[2] GUO Z Q, SHIH T, GAO Y L, et al.. Optimization studies of two-phosphor-coated white light-emitting diodes ［J］. IEEE Photonics J., 2013, 5(2):8200112.

[3] 朱钧,张鹤,金国藩. 一种基于RGB三基色LED的白光光源［J］. 光学技术, 2007, 33(6):929-931.

ZHU J, ZHANG H, JIN G F. A novel white light source based on RGB LED ［J］. Opt. Tech., 2007, 33(6):929-931. (in Chinese)

[4] 宋鹏程,文尚胜,尚俊,等. 基于PWM的三基色LED的调光调色方法［J］. 光学学报, 2015, 35(2):223001-1-8.

SONG P C, WEN S S, SHANG J, et al.. A dimming method for RGB LED based on three channels PWM ［J］. Acta Opt. Sinica, 2015, 35(2):223001-1-8. (in Chinese)

[5] 姚其,居家奇,程雯婷,等. 不同光源的人体视觉及非视觉生物效应的探讨［J］. 照明工程学报, 2008, 19(2):14-19.

YAQ Q, JU J Q, CHENG W T, et al.. Discussion on the visual and non-visual biological effect of different light sources ［J］. China Illumin. Eng. J., 2008, 19(2):14-19. (in Chinese)

[6] BERSON D M, DUNN F A, TAKAO M. Phototransduction by retinal ganglion cells that set the circadian clock ［J］. Science, 2002, 295(5557):1070-1073.

[7] BERMAN S M. A new retinal photoreceptor should affect lighting practice ［J］. Lighting Res. Technol., 2008, 40(4):373-376.

[8] BELLIA L, BISEGNA F, SPADA G. Lighting in indoor environments: visual and non-visual effects of light sources with different spectral power distributions ［J］. Build. Environ., 2011, 46(10):1984-1992.

[9] 宋丽妍,李俊凯,牟同升. 以发光二极管为背光源的平板显示对人体非视觉的影响［J］. 光子学报, 2013, 42(7): 768-771.

SONG L Y, LI J K, MOU T S. Non-visual effects of flat panel display with light emitting diode backlight on human ［J］. Acta Photon. Sinica, 2013, 42(7):768-771. (in Chinese)

[10] 鲁玉红,王毓蓉,金尚忠,等. 不同波长蓝光LED对人体光生物节律效应的影响［J］. 发光学报, 2013, 34(8):1061-1065.

LU Y H, WANG Y R, JIN S Z, et al.. Influence of different wavelength blue LED on human optical biorhythm effect ［J］. Chin. J. Lumin., 2013, 34(8):1061-1065. (in Chinese)

[11] OH J H, YOO H, PARK H K, et al.. Analysis of circadian properties and healthy levels of blue light from smartphones at night ［J］. Sci. Rep., 2015, 5:11325.

[12] UKAUSKAS A, VAICEKAUSKAS R. Tunability of the circadian action of tetrachromatic solid-state light sources ［J］. Appl. Phys. Lett., 2015, 106(4):041107.

[13] 林岳,叶烈武,刘文杰,等. 二分法优化计算LED光源相关色温［J］. 光学学报, 2009, 29(10):2791-2794.

LIN Y, YE L W, LIU W J, et al.. Optimization algorithm of correlated color temperature for LED light sources by dichotomy ［J］. Acta Opt. Sinica, 2009, 29(10):2791-2794. (in Chinese)

[14] GALL D. The measurement of circadian radiation quantities ［C］. Proceedings of The Licht and Gesundheit, Berlin, 2004.

郑莉莉, 郭自泉, 严威, 吴挺竹, 吕毅军, 高玉琳, 史园, 陈忠. 三基色白光LED的司辰节律因子研究[J]. 发光学报, 2016, 37(11): 1384. ZHENG Li-li, GUO Zi-quan, YAN Wei, WU Ting-zhu, LYU Yi-jun, GAO Yu-lin, SHI Yuan, CHEN Zhong. Investigation on The Circadian Action Factor of RGB White LEDs[J]. Chinese Journal of Luminescence, 2016, 37(11): 1384.

三基色白光LED的司辰节律因子研究

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