Abstract

Fluorescent lamp phosphors activated by complex ions(WO₄^2- etc.), s² configuration ions, Mn²⁺ or Eu²⁺ show broad band emissions. The spectral energy distribution(SED) shape for some selected phosphors has been discussed^(1,2). We report a more generalized observation on these phosphors to deduce the SED features inherent in each of the activators. Every observed SED was plotted in terms of $\sqrt{-\log \left({\text{I/I}}_0\right)}$ vs. wavenumber to compare it with the Gauss error function(I:Energy,I₀:Maximum energy of SED).

© 1984 Optical Society of America