IDENTIFICATION METHOD FOR VALUABLE ITEM WITH PROTECTION ELEMENT OF LUMINESCENT TYPE, PROTECTION ELEMENT, OPTIC ELECTRONICAL UNIT FOR PROTECTION ELEMENT IDENTIFICATION, COUNTERFEIT-PROTECTED MATERIAL AND COUNTERFEIT-PROTECTED VALUABLE DOCUMENT Russian patent published in 2009 - IPC B41M3/14 

FIELD: technological processes.

SUBSTANCE: invention concerns methods and means of counterfeit protection of valuables, and detection means for such elements. Method of identification of valuable article with protection element of luminescent type includes luminophor layer with actuator in the form of admixture, discrete physical structures of which function as luminescence centres by excitation of alternate electric field of specified frequency in protection element zone. This field actuates electric luminescence of prebreakdown type in the luminophor layer, then specified electric luminescence irradiation parametres are registered for further article authenticity identification. Composition with electric luminescence centres of at least two energy levels in exclusion luminophor band are used as luminophor, and integral luminescence colour is defined by level position in the exclusion zone and by frequency of actuating electric field. Actuation of electric luminescnence centres in different zones of protection element position is performed by electric field of different frequency. In the process of irradiation parametre registration integral luminescence colour of excited electric luminescence centres is registered in at least two zones positioned at distance from each other on the protection element plane. Protection element of luminescent type for identification of valuable articles includes luminophor layer with actuator. Optic electronic unit for luminescent-type protection element identification includes alternate electric field generator with electrode system, and parametre registration device for irradiation excited in luminophor layer with actuator. Invention also claims counterfeit-protected material and counterfeit-protected valuable document.

EFFECT: enhanced protection grade of articles.

10 cl, 5 dwg