摘要
作为照明光源的小功率LED阵列,虽然解决了散热问题,但LED数量多、光衰强、安装成本高,采用大功率LED已经是城市照明LED路灯发展的趋势。如何解决大功率LED路灯产品的散热、LED的散光,聚光控制问题,路灯在路面照射面的照度范围、型态和照度的均衡问题和光电转换效率太低,每瓦只有几个流明等问题是本文研究的关键。
Modern lighting in the area as a source of low-power LED array, Thermal issue is resolved,LED used to be a lot of volume, low-power LED light failure strong, and the installation of high cost;Urban Lighting LED lights use high-power LED is the trend of development, with a small number of high-power LED to LED lights in the products because no good solution to achieve a certain amount of power, LED the heat; LED astigmatism and the condenser control;Street lamps in the road surface of the illumination of the exposure, type and intensity of the balance;Photoelectric conversion efficiency is too low, only a few lumens per watt, and other issues.
出处
《电气技术》
2008年第7期95-98,共4页
Electrical Engineering
关键词
大功率LED
散热
道路照明
性能对比
high-power LED
thermal
road Lighting
comparative performance
