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Optical characterization of photochromic effect |
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| Authors: | Myriam Zerrad Carole Deumié Eugénie Degbé |
| Institution: | a Institut Fresnel, UMR CNRSTIC 6133, Ecole Centrale Marseille, Université Paul Cézanne Aix-Marseille III, Université de Provence Aix-Marseille I, Domaine Universitaire de St Jérôme, 13397 Marseille Cedex 20, France b Marion Technologies, Cap Delta - Parc Technologique Delta Sud, 09120 VARILHES, France |
| Abstract: | Photochromic powders are powders whose color is sensitive to UV irradiation. When such a powder is exposed to the sunlight or any other UV rays, it becomes darker and then looks back progressively to its initial color. An optical method has been set up in order to quantify these colors variations. We can then quantify the variations in the colorimetric space, and the time response of the coming back phenomenon. |
| Keywords: | Light scattering Optical characterization Color characterization |
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