COUNTERFEIT-PROOF VALUABLE DOCUMENT AND METHOD FOR DETERMINING ITS AUTHENTICITY Russian patent published in 2014 - IPC B42D25/391 G07D7/12 B41M3/14 

Abstract RU 2526211 C2

FIELD: printing industry.

SUBSTANCE: invention relates to the field of protection of valuable documents against forgery and is designed for the instrument determining the authenticity of the protected printing products, such as all kinds of valuable documents. The valuable document has a marking comprising at least one inorganic compound with a crystal structure, doped with ions of rare earth elements, having the property of selective interaction with the radiation in the optical spectral range, characterised in that when exposed to radiation on it in a predetermined band of the optical spectrum the radiation of the compound only in this band of the spectrum has an excess over the temperature radiation with the final duration of 10-10 seconds and more.

EFFECT: improving the level of protection of the valuable document.

10 cl, 2 ex

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RU 2 526 211 C2

Authors

Kurjatnikov Andrej Borisovich

Pisarev Aleksandr Georgievich

Mochalov Aleksandr Igorevich

Pavlov Igor' Vasil'Evich

Kornilov Georgij Valentinovich

Fedorova Elena Mikhajlovna

Shirimov Aleksandr Mikhajlovich

Baranova Galina Sergeevna

Torgashova Aleksandra Aleksandrovna

Ostrerov Mikhail Anatol'Evich

Tikhonov Aleksandr Valer'Evich

Kuznetsov Vladimir Anatol'Evich

Salunin Aleksej Vital'Evich

Vorob'Ev Viktor Andreevich

Manashirov Oshir Jaizgilovich

Dates

2014-08-20Published

2012-10-03Filed