Prediction of LED luminaire spectral power distribution using a mathematical model developed based on interpolation method

Roman Sikora, Przemysław Markiewicz, Andrzej Pawlak

Abstract
LED luminaires with controllable luminous flux are increasingly used, mainly due to the need to reduce electricity consumption, which is the equivalent of improving the energy efficiency of a lighting installation. Changing the dimming level changes the spectral power distribution of the luminaire or light source. Knowledge of dimming characteristics including spectral power distribution relationships provides the opportunity to optimize control algorithms and predict the impact of lighting parameters on the work surface. The paper presents a mathematical model to calculate the spectral power distribution of an LED luminaire for any level of dimming. Two interpolation methods were used to develop the model, fitted by polynomial functions and spline functions. Validation of the model was performed for two values of control voltage-dimming levels.

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References

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Keywords

LED Luminaires, interpolation, spectral power distribution

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Photonics Letters of Poland - A Publication of the Photonics Society of Poland
Published in cooperation with SPIE

ISSN: 2080-2242