道路照明水平下的人眼中间视觉

Mesopic Vision on Human Eye of Road Lighting Level

本文说明了目前各国道路照明标准规定的机动车道路面亮度范围是处于中间视觉靠近上限(明亮端)的区域内的事实,因此,针对目前不少学者在推广白光光源做道路照明灯具光源时,通过对白光/黄光(金卤灯、无极灯、LED灯、高压钠灯)的光源做了S/P(不同光源的光谱在暗视觉/明视觉的光通比)计算后得出白光胜于黄光的结论,并做了相应的数学计算。本文说明了S/P仅是表示光源的一个属性而已,这个属性带来的计算结果仅在周围环境的亮度处在暗视觉亮度时才会出现。至于用于道路照明的亮度范围,在数值上与此简单的比较相距甚远。因此用S/P计算得来的亮度来替代传统的亮度和选择光源是没有实用意义的。

This paper shows us the luminance rang on motor traffic roads are belong the upper side of mesopic rang of human eye.Some researcher recently they will progress white light sources said the S/P ratio (light source scotopic lumen/photopic lumen) is a calculation comparing factor of which light source is good for road lighting,then they get the result white light is better than HPS lamp.This paper described the S/P is only a inherent characteristic factor suitable luminance equal 0.001cd/m2 rang—very low luminance is,and no any practical value and significant for selecting road lighting lamp.