Systems for the visualization of exposure to ultraviolet radiation and for the utilization of ultraviolet radiation to effect color changes.

A PHOTOCHEMICAL SYSTEM IS PRESENTED FOR THE VISUALIZATION OF THE ULTRAVIOLET RADIATION EXPOSURE AND FOR THE USE OF ULTRAVIOLET RADIATION TO PERFORM VISIBLE COLOR CHANGES REFERRING TO A PROCESS THAT RESPONSES TO THE ULTRAVIOLET RADIATION IN WHICH IT IS FORCED A COMPOSITE PROGENITOR PHOTOACED WITH ULTRAVIOLET LIGHT AND IN WHICH THE TRANSFER OF PROTONS TO A DYING SUBSTANCE CAUSES THAT THE DYING SUBSTANCE SUFFERS A COLOR CHANGE VISIBLE. IF THE SYSTEM IS WISHED IT SUFFERS SUCH COLOR CHANGES UP TO A DIRECTLY PROPORTIONAL EXTENSION TO THE ACCUMULATIVE AMOUNT OF ULTRAVIOLET INCIDENCE ON THE SAME. EXAMPLES OF MATERIALS CAN BE GIVEN THAT CAN BE MANUFACTURED IN FILMS, FIBERS, FORMED IN OBJECTS OR FORMULATED AS INKS, PAINTS AND SIMILAR.