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Application filed by Науково-Виробнича Фірма "Метросервіс", Научно-производственная фирма "Метросервис"filedCriticalНауково-Виробнича Фірма "Метросервіс"
Priority to UA96093620ApriorityCriticalpatent/UA28044C2/en
Publication of UA28044C2publicationCriticalpatent/UA28044C2/en
Investigating Or Analysing Materials By The Use Of Chemical Reactions
(AREA)
Abstract
A token is made on the basis of a polymer material and contains coding elements. It contains a diffuser and also a luminescent substance and/or an absorber as the coding elements. Additional marks are put on flat surfaces thereof with the luminescent substance having a spectral luminescence range of 400-900 nm, a spectral absorbance range of the absorber is of 600-1500 nm, and the polymer material and absorber are optically transparent in the spectral range of 400-900 nm.