Intrusive light quantification methodology in photometries obtained in a goniophotometer

Abstract

In the present work a methodology has been developed for the evaluation of intrusive light in photometries obtained in
goniofotómetros. This methodology can serve the operational laboratories to quantify this parameter and improve the calculation of
the combined uncertainty of the measurement. A percentage intrusion light calculation program was performed from the equation
defining the luminous intensity, then measurements were taken over a year. Finally, after adjusting for a Gaussian curve, a mean value
was established with a standard uncertainty.