摘要
因为道路照明亮度水平一般在中间视觉范围内,所以目前依据明视觉光谱光视效率函数确定光源在道路照明条件下光效的方法是不合适的.为了得到道路照明常用光源在中间视觉条件下的光效,正确选择道路照明光源和使道路照明设计达到节能要求,采用中间视觉的实用模型和国内外利用多种方法得到的实验数据,研究高压钠灯和金属卤化物灯(镝灯)这2种道路照明常用光源在中间视觉条件下的光学特性,计算出了这2种光源在中间视觉条件下的光效,分析了在中间视觉条件下的光效随适应亮度水平变化而变化的规律,并提出应根据道路照明所需要的亮度水平选择合适的照明光源.
It is inappropriate to define the luminous efficiencies of light sources based on the photopic luminous efficiency function V（λ ） in road lighting application, because road lighting is under mesopic level. In order to define the luminous efficiencies in mesopic level of common light sources of road lighting, and provide advices for designers to choose lighting sources properly, and for road lighting design to save energy, this paper studies light characteristics of two common light sources of road lighting, high pressure sodium lamp and metal halide lamp （ dysprosium lamp）, calculates the luminous efficiencies of these two light sources under mesopic level, analyzes luminous efficiencies＇ changing rules with the change of background lighting level of these two light sources under mesopic level. The conclusion is that light level of road lighting should be considered when choosing light sources.
出处
《重庆大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2007年第1期139-141,146,共4页
Journal of Chongqing University
基金
国家自然科学基金资助项目(50378093)
教育部博士学科点科研基金资助项目(20050611007)
关键词
中间视觉
道路照明
高压钠灯
金属卤化物灯
发光效率
mesopic vision
road lighting
high pressure sodium lamp
metal halide lamp
luminous efficiency
