| 摘要 |
<p>The invention relates to a method of checking the documents provided with security elements, the structure of the security elements being so selected and the elements so placed as to make difficult, if not impossible to draw conclusions with regard to the security elements to be checked., thereby preventing the forgerer from making fake documents so similar to the original ones as not to allow their detection by means of the checking apparatus. The structure of the security elements to be checked provides for a new design which is not obvious upon visual inspection, said functional design consisting of a combination of conductive and insulating structures of identical or different sizes, in identical or different planes with identical or different electrical conductivities, being made up from metalized structures and electrically conductive inks or printing paints, the checking method being oriented according to the structure of the security elements to be checked.</p> |
