LED城市道路照明灯具二次光学系统的光效分析  

Optical Efficiency Analysis of LED Road Lighting Luminaive

作　　者：钱可元[1] 罗毅[1,2] 

机构地区：[1]清华大学深圳研究生院半导体照明实验室,深圳518055 [2]清华大学电子工程系集成光电子学国家重点实验室,北京100084

出　　处：《照明工程学报》2009年第S1期21-25,共5页China Illuminating Engineering Journal

摘　　要：由于白光LED具有很多显著的优点,将其用作城市公共照明设施的替代光源有着许多的优点。然而要真正充分发挥半导体光源的长处,二次光学系统的设计至关重要。本文从系统光效和光场照度分布的角度出发,对各种光学系统的性能特点进行了分析,指出了二次配光设计时应考虑的问题和设计原则。介绍了一种独特的适用于城市道路照明二次光学系统,他能较好的满足城市道路照明的相关标准,并可以灵活地适用于不同的道路情况。Due to the white LED's many advantages,its application is a good substitute to other light sources.However to fully exert the advantages of the semiconductor lighting source,the secondary optics design is very important.From the perspective of the system efficiency and the illumination distribution,this paper focuses on the analyses of the optical characteristics of the system,and points out the problems and design principles that should be considered when designing the secondary light distribution design.We also introduced a kind of unique suitable for road lighting second optical systems,which can better satisfy the related standards and be flexibly applied to different road conditions.

关 键 词：半导体照明 功率型LED 二次光学设计 

分 类 号：TM923.5[电气工程—电力电子与电力传动]