The Light-tube Method for Lighting Calculations in a Near Field
The new method for computing the illuminance in a near field of an axially symmetrical luminaire is presented. It is referred to as a light tube method. The method uses basic concepts of the light field theory: a light vector, a light line, and a light tube. The main advantage of the method is that input data are defined in a traditional way, like measuring luminous intensity of a luminaire. The difference is that the measurements are carried out for several distances in a near field. If the results of the measurements at the selected distance in a far field are added, one may obtain a unified table of luminous intensities both for near and far fields. The data can be presented in standard electronic formats and used in lighting computer programs.
near field photometry far field photometry law of inverse-square distances light vector light tube axially symmetrical luminaire.
Korobko Alexey
Scientific Production Enterprise of Lighting Engineering Svetoservis, Moscow, Russia
国际会议
26th Session of the CIE(国际照明委员会（CIE）第26届大会)
北京
英文
293-296
2007-07-04（万方平台首次上网日期，不代表论文的发表时间）