SECURITY ELEMENT, PRINTED MATTER COMPRISING SAID SECURITY ELEMENT AND METHOD TO INSPECT AUTHENTICITY OF SAID PRINTED MATTER

摘要

The invention relates to a security element applied on a printing substrate (banknotes, securities, product packagings, identity cards/labels or other similar documents) as a print by printing, comprising a graphic code carrying primary information and detectable to the naked eye and a graphic code combined therewith carrying secondary information and undetectable in the naked eye. The largest dimension of the code carrying secondary information is 2 to 40 microns and is chosed such that due to printing uncertainties arising when printing on a substrate the code carrying secondary information is distorted making the code carrying secondary information non-reconstructable from the print and thereby attributing the security element with a statistically analyzable feature.