摘要
在用分布式光度计测得灯具或光源的光强分布后,通常通过球带法来求出总光通量和/或局部光通量值,其本质是对定积分由求和来进行估算。由于球面坐标的特殊性,这种方法与在平面坐标系中的方法是有差别的。本文将分析这种差别,对此种计算方法的误差进行分析,并提出减少误差的改进方法。
After getting the luminous intensity distributions of a lighting source by a goniophotometer system, the total and/or partial luminous flux are usually calculated by sphere-band method. Because of the particularity of spherical coordinate, this method is different from that of plane-coordinate system. The difference and calculation error of this method is analyzed and an improved method is proposed in this paper.
出处
《照明工程学报》
2014年第3期16-20,共5页
China Illuminating Engineering Journal
关键词
分布光度计
球带法
计算
光通量
误差分析
goniophotometer
sphere-band method
calculation
luminous flux
error analysis
