| 摘要 |
FIELD: technologies for validating documents, etc. ^ SUBSTANCE: device has detector with electrodes, detector and signals processing device, during check an alternating electric field is formed, which excites electro-luminescent radiation. One detector detects electro-luminescent signal of validity mark and transforms it to electrical signal, one electrode is made flat or in form of electro-conductive covering of pressing roller, another - in form of electro-conductive film of pressing roller, or one electrode is made plated of transparent electro-conductive material or in form of round electrode in form of one or several wires, and other one - in form of electrode head. ^ EFFECT: higher efficiency. ^ 3 cl, 12 dwg |
