FIELD: chemistry.
SUBSTANCE: disclosed inventions concern a topographic element and method for its making. A holographic element contains a base comprising a polymeric plated film. This base contains an unplated segment with a distant metal layer and a plated hologram segment shaped as a topographic microrelief formed by ridges and groove on a metal surface of said base. The unplated segment is optically transparent, while the hologram segment is optically opaque. The interface of the unplated and hologram segments matches to that of the topographic relief.
EFFECT: disclosed invention ensures making the topographic element with improved forgery-proof properties.
2 cl, 4 dwg, 1 ex
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