Effect of Scattering Medium on Total Luminous Energy Transfer of Different Types of Sources

Abstract

The scattering co-efficient strongly depends on the wavelength of light, specially when particle size of the scattering medium is of the order of wavelength. So, for equal energy sources having different spectral distribution, the total luminous energy transfer through turbid medium will be different. Using semi-emperical expression the toial luminous energy transfer of different black-body radiators and other sources, such as, sunlight, meicury lamp, carbon arc-lamp, xenon lamp and daylight fluorescent Iamps are considered here. For this study the scattering media are assumed to consist of water-droplets of 0.3 (01) 0.6 micron in radius with concentration of 108 particles per c.c. In essence the effect of scattering medium on total energy transfer has been described here in terms of the efficiency of the medium.