摘要
在目前低碳化照明备受关注的情况下,科学进行探照灯的布置与使用具有重要意义。夜天空发亮是城市光污染的主要表现形式之一。本文将正交设计试验的方法运用到城市光环境污染的研究中,定量地分析探照灯的设置因素(出射角度、光束截面、光源亮度)对天空辉光的影响以及这种影响随因素水平的变化。实验结果表明各因素对天空发亮影响次序:出射角度>光束截面积>光源亮度。随着出射角度、光源亮度和光束截面积的增加,天顶亮度也相应提高。随出射角度的增大,天顶亮度提高的幅度最大;随光源亮度增加,天顶亮度提高的幅度最小。天顶亮度的最大值与光源亮度成正比变化。
Scientific design of powerful searchlights has a very important significance for low-carbon city.Sky glow is one of main lig t pollutions in urban night environment.The orthogonal design method was applied to study of light pollution and its advantage is to significantly reduce test times.Influences of setting factors of searchlights,including angle of light,sectional area of beam of light and brightness of light,on sky glow and the changes with every factor level were quantitatively analyzed.The results indicated that the impact order of various factors on sky glow is angle of illuminant,sectional area of beam of illuminant and brightness of illuminant with an increase of the three factors,zenith brightness has a corresponding increase.The influence of angle of illuminant is the most significant whereas that of brightness of illuminant is smallest.The maximum zenith brightness is proportional to the brightness of illuminant.
出处
《照明工程学报》
北大核心
2011年第2期7-11,共5页
China Illuminating Engineering Journal
基金
中国博士后科学基金项目(20090450764)
国家自然科学基金(51008043)
中央高校基本科研业务费专项资金(DUT10RW421)
辽宁省教育厅项目(2009B043)
大连市社科院项目(10DLSK129)
关键词
光污染
正交设计
城市夜间环境
天顶亮度
光源
light pollution
orthogonal design
urban night environment
zenith brightness
illuminant
