A "one channel" Spectral Colour Prediction Model for Transparent Fluorescent Inks on a Transparent Support

Classical colour prediction models do not take fluorescence into account, and their predictions fail if fluorescent substances are contained in the inks. This is due to the fact that the overall spectrum of fluorescent substances depends on the spectrum of the light source. Furthermore, fluorescence is a non linear phenomenon. This study aims at predicting the spectra and the colours of uniform samples produced with one fluorescent ink at different concentrations. The method is based on a “one channel” modelization of the phenomenon where only one direction of propagation is taken into account. This model is used to compute the transmittance spectra of uniform colour samples. The proposed prediction model requires measuring the transmittance spectra, the quantum yields, the absorption bands and the emission spectra of the fluorescent inks. In contrast to existing fluorescence prediction methods, 3,9,13