FIELD: physics; alarm and protection.
SUBSTANCE: invention relates a system of coding valuable documents. The system includes main luminescent substance and at least one additional luminescent substance, where code combinations possible in the coding system are formed by presence or absence of the additional luminescent substance and/or type of additional luminescent substances and/or amount of additional luminescent substances.
EFFECT: increased level of protection from counterfeiting.
20 cl
| Title | Year | Author | Number |
|---|---|---|---|
| VALUABLE DOCUMENTS CODING SYSTEM | 2004 |
|
RU2344050C2 |
| VALUABLE DOCUMENT | 2004 |
|
RU2368013C2 |
| SIGN OF AUTHENTICITY IN FORM OF LUMINOPHORS | 2010 |
|
RU2546465C2 |
| AUTHENTICITY FEATURES IN THE FORM OF LUMINOPHORS | 2007 |
|
RU2442696C2 |
| SELF-SCAN PROOF AUTHENTIFIED SECURITY ISSUE | 2004 |
|
RU2345419C2 |
| IMPORTANT DOCUMENT | 2004 |
|
RU2365511C2 |
| PRINTED DOCUMENT WITH LUMINESCENT AUTHENTICITY SIGNS MADE WITH USE OR CRYSTAL LATTICE OF BASE | 1999 |
|
RU2189908C2 |
| PRINTED IMPORTANT DOCUMENT WITH LUMINESCENT AUTHENTICITY INDICATION | 1999 |
|
RU2191119C2 |
| IMPORTANT DOCUMENT | 2002 |
|
RU2286885C2 |
| IMPORTANT DOCUMENT | 2004 |
|
RU2361744C2 |
