The Impact of LED Light Color on the Dark Adaptation of Human Vision in Tunnel Entrances
The Impact of LED Light Color on the Dark Adaptation of Human Vision in Tunnel Entrances
复制标题
隧道入口LED光色对人类视觉暗适应的影响
DOI：
10.1109/jphot.2018.2868829
复制
发表时间：
2018-09-01
影响因子：
2.4
通讯作者：
Xu, Wenhai
中科院分区：
文献类型：
--
作者：
Dong, Lili;Shang, Xiongfei;Xu, Wenhai
在隧道入口段暗适应研究中，由于该段亮度在明视范围内，视杆细胞色素和亮度的影响可以忽略不计。相反，可以考虑浅色特性。本文主要研究了隧道入口处光线颜色（包括相关色温、显色性和光谱）对暗适应的影响。基于7种不同CCT（3000-6500 K）的大功率LED进行了实验。实验结果表明，LED的光色特性显著影响暗适应。具体地说，显色性越好，蓝光的缺乏程度越低，暗适应时间就越短。在具有不同CCT的各种LED中，4000 K-4500 K LED具有更好的光色特性，并且可以缩短暗适应时间。因此，具有4000 K-4500 K CCT的LED优选用于照明隧道入口。
For the study of dark adaptation at the entrance section of a tunnel, the effects of photopigments in rod cells and luminance can be disregarded because the luminance of this section is in the range of photopic vision. Instead, light color characteristics can be considered. This paper focused on the impact of light color, including correlated color temperature (CCT), color rendering, and spectrum, on dark adaptation at the entrance section of a tunnel. An experiment was performed based on seven kinds of high-power LEDs with different CCTs (3000-6500 K). The experimental results showed that the light color characteristics of LEDs significantly affected dark adaptation. Specifically, the better the color rendering and the lower the absence of blue light, the shorter the dark adaptation time. Among various LEDs with different CCTs, the 4000 K-4500 K LEDs have better light color characteristics and can shorten dark adaptation times. Therefore, LEDs with CCTs of 4000 K-4500 K are preferable for lighting tunnel entrances.