On the thickness of phosphor coating in fluorescent lamps and its impact on selected light parameters

This article presents the results of research carried out on the formation of light parameters of the phosphor coatings and surfaces of fluorescent lamps. Particular attention has been paid to those parameters which influence the formation of light parameters such as light efficacy and ripple. The results of the measurements of light efficacy and light ripple are given in terms of the thickness of coatings and some of the physical parameters of phosphors used in AC powered mains frequency fluorescent lamps. On the basis of attained results the conclusions are given concerning the efficacy of light and the depth of light ripple in the function of the thickness of phosphor coating.