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| Abstract: |
| With the increasing attention on circadian effects driven by light, lighting industry has inspired a revolution of photobiological lighting design. Due to diverse evaluation criteria for visual and non-visual systems, models that combine these evaluation parameters are indeed urgent. Thus, an integrated model for mesopic lighting evaluation of circadian effects was proposed. The circadian efficiency function adopted in this study was synthesized by CIE 1931 XYZ 2 deg color matching functions and standard scotopic sensitivity function. Then, the integrated model composed of International Commission on Illumination 1931 xy chromaticity coordinates, scotopic/photopic ratio, and illuminance could be obtained with synthesized circadian efficiency function. The model showed that for light sources with fixed chromaticity coordinates and fixed illuminance, enhancing the circadian effects is equivalent to increasing the scotopic/photopic ratio, which suggests a useful method for practitioners to explore the photobiologically reasonable spectrum for mesopic lighting. Light-emitting diodes spectra optimized by four-component color-mixing method were employed to figure out the property of the integrated model. |
| Key words: circadian effects mesopic lighting scotopic/photopic ratio |
| DOI：10.11916/j.issn.1005-9113.19021 |
| Clc Number:TU113 |
| Fund: |
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| Descriptions in Chinese: |
| 中间视觉光源生理节律效应的综合评价模型 曾伟森1，边宇2,* （1．华南理工大学 物理与光电学院，广州 51640； 2．华南理工大学 建筑学院//亚热带建筑科学国家重点实验室，广州 51640） 摘要：随着人们对光驱动的生理节律效应的日益关注，照明行业引发了光生物照明设计的热潮。由于视觉系统和非视觉系统的评价标准多种多样，将它们的评价参数结合起来的模型显得尤为迫切。本文提出一种用于评价中间视觉照明的生理节律效应的综合模型，采用CIE 1931 XYZ 2°视场颜色匹配函数和标准暗视觉灵敏度函数合成了生理节律效率函数。然后，利用合成的生理节律效率函数得到综合模型，该模型由国际照明委员会1931 xy色度坐标、S/P比值和照度组成。综合模型表明，对于具有固定色度坐标和固定照度的光源，增强生理节律效应等同于提高S/P比值。该模型为探索光生物友好型的中间视觉照明光谱提供一种有用的方法。采用四通道混色法对发光二极管光谱进行优化，进而得到综合模型的性质。 关键词：生理节律效应；中间视觉照明；S/P比值 |
