VALUABLE DOCUMENT WITH COUNTERFEIT PROTECTION, METHOD FOR VERIFICATION OF VALUABLE DOCUMENT AUTHENTICITY AND DEVICE FOR VERIFICATION OF COUNTERFEIT-PROTECTED VALUABLE DOCUMENT AUTHENTICITY Russian patent published in 2010 - IPC B42D15/00 G07D7/00 

FIELD: printing industry.

SUBSTANCE: valuable document with counterfeit protection contains within and/or its surface protective marking, which includes composition of luminescent compounds, which comprises at least one inorganic photo-stimulating luminescent compound brought into excited condition under action of radiation of UV or visible range of spectrum and having luminescence in visible range of spectrum under effect of infrared radiation, and inorganic anti-stokes luminescent compound, having luminescence in visible range of spectrum under action of infrared radiation, and in case of serial or simultaneous action of radiations, it provides for generation of registered dynamic effect, which consists in change of colour, flashing, recession of brightness waves or pulsation of protective marking image. Method for verification of authenticity suggests serial radiation of valuable document by radiation and visual registration of dynamic effect. Device for verification of authenticity comprises source of photo-excitation radiation, source of photo-stimulating radiation, diaphragm for generation of directivity pattern of specified radiations and control unit, at the same time optical axes of both sources of radiation cross in plane of valuable document protective marking location.

EFFECT: improved protection of document.

27 cl, 4 dwg