CODING SYSTEM FOR VALUABLE DOCUMENTS

摘要

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