道路照明光源选择依据的探讨  

Discussion on Criteria of Light Source Selection for Road Lighting

作　　者：陈文成[1] 林燕丹[1] 邵红[1] 周卫忠[1] 陈大华[1] 

机构地区：[1]复旦大学电光源研究所,上海200433

出　　处：《复旦学报（自然科学版）》2003年第6期950-955,960,共7页Journal of Fudan University：Natural Science

基　　金：上海市科技发展基金资助项目(005907023)

摘　　要：采用10度视场条件下,与不同亮度水平相对应的8个光谱光视效率函数,计算了金属卤化物灯(MH)、高压钠灯(HPS)和高压汞灯(HPM)三种高强度气体放电光源(HID),在暗视觉到明视觉(10-5～102cd·m-2)亮度范围内对应不同亮度水平时的有效光效,并提出了有效光效系数LEC(luminousefficacycoefficient)来剖析和评价不同光源在道路照明中不同应用条件下的适宜性.LEC值可为道路照明设计时选择适宜的光源提供有益的参考.实验结果证实在道路照明条件下,LEC值大的光源更有利于周边探测.A new parameter -LEC (luminous efficiency coefficient) is introduced to evaluate the relative superiority among MH (metal halide lamp),HPS (high pressure sodium lamp) and HPM (high pressure mercury lamp) on road lighting. The values of LEC is calculated by using some data regarding V~*_((λ)) from direct heterochromatic brightness comparison method in different luminance levels (from 10^(-5) to 10^(2) cd·m^(-2); 10 degree visual angle). The use of LEC can be a reference to help designers to select light sources for road lighting. The experimental results show MH is more effective than HPS on peripheral detection according with the theoretical computation of LEC.

关 键 词：道路照明 中间视觉 光谱灵敏度 有效光效系数 光源 金属卤化物灯 高压钠灯 高压汞灯 

分 类 号：TU113.666[建筑科学—建筑理论]