配光曲线在照明计算中的应用

目的研究配光曲线在照明计算中的应用,设计出高质、高效的建筑光环境.方法从配光曲线基本概念出发,剖析了它的物理涵义及数学表达式,提出了通过配光曲线进行灯具效率和照度的计算方法,避开配光曲线作为实验曲线难以写出函数形式的困难,严谨的公式推导,对公式计算精度定量讨论,并通过工程实例进行分析和验证.结果推导出利用配光曲线计算灯具效率和工作面照度的近似公式.结论灯具的配光曲线能够反映出灯具的许多重要特性,配光曲线在照明计算中提供又一便捷工具,正确利用灯具的配光曲线,对建筑照明设计具有重要的指导作用.

How to Use Luminous Intensity Distribution Curve in Lighting Calculation

Luminous intensity distribution curve is an important concept in lighting design,which contains a lot of main characteristics of luminaire.In this paper,by the introduction of the concept and meaning of luminous intensity distribution curve,the authors improve the lighting calculation formula so that lighting designers are imparted further cognition to luminous intensity distribution curve and will attach importance to its application.By deducing the calculation formula of luminaire efficiency and illuminance on working face,and analyzing a case of lighting,the paper can help lighting designers design efficient and excellent lumination by aptly using luminous intensity distribution curve.