Banknote validity testing device with which luminescent light generated from security markings is detected, whereby light source and detector are arranged opposite to each other and banknotes are passed between them

摘要

Device for checking the validity of documents (13), especially banknotes has a light source (20) that generates light of a first wavelength and a detector (45) that detects light of a second wavelength that is generated by interaction of light of the first wavelength with material incorporated in the document surface. The documents are passed between light source and detector, which are arranged opposite to each other.