A Unique Device for Measurement of Photochromic Textiles

In this article, a unique concept for a device that conducts photochromic measurement in the reflectance mode together with the methodology described has been patented in the Czech Republic in the author's name. This unique device allows measurements of colorimetric and spectral characteristics of photochromic textiles as photochromic sensors and also as a fatigue tester for the control of color change stability. The measurement of colorimetric and spectral parameters in comparison together with the intensity of UV irradiation allows the dependence of color change on intensity of irradiation to determined, and a scale for individual visual observation to be developed, as well as the risks of UV irradiation to be evaluated.