光源色温对隧道及道路照明视觉功效影响的研究

Study on the Influence of Lighting Source Color Temperature on Visual Performance in Tunnel and Road Lighting

根据国外相关研究成果和中间视觉理论,采用自行研制的反应时间测量系统和PR-650光谱扫描仪,分别对同类型不同色温的光源进行了反应时间和光谱能量分布测试。获得了在中间视觉条件下反应时间与背景亮度之间的函数表达式,以及反应时间随背景亮度、视标对比度和视标偏心角改变的变化规律。结果表明,在所研究的背景亮度范围内,用高色温的紧凑型荧光灯照明能缩短反应时间,从而增快对瞬态事件的反应速度;反之,用低色温的紧凑型荧光灯照明则会延长反应时间,导致大脑反应迟钝。本研究成果提供了光源色温影响视觉功效的实验依据,为制定更加科学和合理的隧道及道路照明设计标准打下了基础。

Based on the foreign similar research results and mesopic theory, reaction time and spectral power distribution of same type with different color temperature lighting source was measured, by a reaction time measure system developed ourselves and PR-650 spectral scanner. Functions of reaction time and background luminance and the dependence of reaction time with background luminance, target contrast, and eccentricity were acquired. The results indicated that the reaction time is shorter under high color temperature compact fluorescent lamp than under low color temperature compact fluorescent lamp in the researched background luminance range. The research results provide evidence of reaction time influenced by lighting source color temperature, and form the basis of establishing tunnel lighting design standard and road lighting design standard.