| 摘要 |
generation of hidden images and labels on holograms. SUBSTANCE: method involves application of at least one label onto hologram surface or inserting at least one label into its material. Label has given shape and size and is made from anti- Stokes luminescent compound or includes anti-Stokes luminescent compound, which is designed as crystalline structure, which gird contains atoms of simultaneously several rare-earth elements. Label is detected by means of exposition of hologram or given piece of hologram to infrared light. EFFECT: increased protection of image against faking. 11 cl
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