NON-FALSIFIABLE INFORMATION CARRIER MATERIAL, INFORMATION CARRIER PRODUCED THEREFROM AND TEST DEVICE THEREFOR

摘要

In order to protect against falsification, an information carrier is doped with a photochromic substance. The location of the points (2), wherein the photochromic substance is embedded, is stored in readable form. For authentication purposes, the location of said points (2) is read out optically and compared with the stored information (fig 1), whereby a suitable initialization device is used.