APPARATUS FOR DETECTING SECURITY FEATURES WHEN AUTHENTICATING SECURITY PAPERS AND DOCUMENTS Russian patent published in 2014 - IPC G07D7/12 

FIELD: physics.

SUBSTANCE: electromagnetic radiation generator is made in form of a linear array consisting of similar light-emitting diodes 19, having a length which is not shorter than the width of the detected area. A linear photodetector array also consists of similar photodiodes 20, each placed opposite the light-emitting diodes. Adjacent photodiodes 20 of the photodetector are switched in pairs with the possibility of detecting the analysed object simultaneously on all formed channels. Values of given characteristic parameters of the generated luminescence radiation, which corresponds to areas of the surface, i.e., response detected by the photodetector, are the damping characteristic of the generated luminescence radiation and the topology of arrangement of security marks.

EFFECT: high accuracy of authenticating and identifying security papers and documents, compact and simple device.

4 cl, 16 dwg