РУАЭСТ (RUAEST)
EVALUATING THE UNCERTAINTY OF THE SPECTRORADIOMETRIC APPROACH FOR THE CALCULATION OF SSL LUMINAIRES CHROMATICITY COORDINATES
The accuracy of chromaticity coordinates measurements, which are effective values, connected with the CIE tabulated functions and with a specific colour space, depends on the measuring devices used and on the spectral distribution of the energy characteristics of the radiators. These devices can be both integral, and spectral. In this paper, limit evaluations of colour coordinates х and у determination error are considered for lighting devices with light emitting diodes under laboratory test conditions. The evaluations are based on measurements of irradiance spectral distribution created by an LED luminaire, taking into account the uncertainty of the spectral characteristics of a standard source, which is used for spectrometer calibration. The research was performed by analysing linear errors and using the stochastic simulation method.