FIELD: physics.
SUBSTANCE: security marking is made using inorganic luminescent compounds based on rare earth and alkali metals containing substituent elements. The protective marking, based on these compounds, has a Stokes and / or anti-Stokes luminescence in the wavelength range of 400-2500 nm, which arises under the influence of the exciting radiation lying in the spectral range of 700-1000 nm. Marking luminescence has the property to change its intensity without changing its spectral composition under the influence of the stimulating radiation in the spectral range of 300-700 nm. The protective marking is entered into the basis of the value document, or applied to its surface by printing.
EFFECT: high level of the product protection against counterfeit.
9 cl, 11 ex, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| DETERMINATION OF LAMINAR ARTICLE AUTHENTICATION | 2014 |
|
RU2567068C1 |
| METHOD OF MARKING ANTI-COUNTERFEIT OBJECT, METHOD OF IDENTIFYING MARKING AND MARKING IDENTIFICATION DEVICE | 2019 |
|
RU2720464C1 |
| INORGANIC LUMINESCENT COMPOUND, MARKING USING INORGANIC LUMINESCENT COMPOUND AND INFORMATION MEDIUM USING INORGANIC LUMINESCENT COMPOUND | 2019 |
|
RU2730491C1 |
| VALUABLE DOCUMENT WITH COUNTERFEIT PROTECTION AND METHOD FOR DETECTION OF ITS AUTHENTICITY | 2008 |
|
RU2379195C1 |
| PRODUCT CONTAINING PAPER OR POLYMER CARRIER WITH PROTECTING MARKING, AND METHOD OF DETERMINING AUTHENTICITY OF PRODUCT | 2013 |
|
RU2536748C1 |
| COMPOSITE MATERIAL FOR MARKING A MATERIAL OBJECT | 2019 |
|
RU2725599C1 |
| FORGERY-PROTECTED DATA CARRIER | 2022 |
|
RU2799307C1 |
| COUNTERFEIT-PROOF VALUABLE DOCUMENT AND METHOD FOR DETERMINING ITS AUTHENTICITY | 2012 |
|
RU2526211C2 |
| METHOD OF PRODUCING INORGANIC LUMINESCENT COMPOUND WITH GIVEN FRACTIONAL COMPOSITION | 2020 |
|
RU2743423C1 |
| ARTICLE HAVING CARRIER WITH PROTECTIVE LABELLING AND METHOD OF AUTHENTICATING ARTICLE | 2014 |
|
RU2561073C1 |
