AUTHENTICITY MARK IN THE FORM OF LUMINESCENT SUBSTANCES

摘要

The invention relates to a printed valuable document comprising an authenticity mark in the form of at least two luminescent substances on the basis of host lattices that are doped with one or more ions. A targeted adjustment of the luminescent properties of luminescent substances can be achieved by the systematic modification of the host lattices and/or ions of the (nd)³ electron configuration. The combination of said luminescent substances permits a plurality of complex, novel authenticity marks.