Abstract:
This paper presents a comparative study of the relative spectral radiance measurements of incandescent and LED light sources performed in two different setups with a rotating–mirror- goniophotometer. In one configuration the light is reflected by the goniophotometer´s mirror, while in the other the mirror is bypassed. This study permits to determine a spectral correction factor at each measured wavelength in order to obtain a more precise value for the Correlated Color Temperature (CCT) for any light sources with different spectral power distributions.
