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SWISS AUTHENTICATION RESEARCH AND DEVELOPMENT AG
Tagerwilen, DE
| SWISS AUTHENTICATION RESEARCH AND DEVELOPMENT AG Patent applications | ||
| Patent application number | Title | Published |
|---|---|---|
| 20100219377 | LUMINESCENT COMPOSITION - The invention relates to a luminescent composition which is based on yttrium oxide sulfide and other oxide sulfides and to which at least one doping agent is added. The inventive composition has a characteristic emission spectrum and can optionally be used along with a reading system that is adjusted to the emission spectrum in order to mark substances or *substance mixtures. | 09-02-2010 |