holographic protective element

摘要

The invention relates to the production of holograms and can be useful for development of the holographic protective elements on the base of new principles. A protective element is made in the form of a relief holographic structure applied on a substrate from a polymer film. The relief structure is filled with an electro-conductive varnish, which made the holographic image on the protective element invisible. Visualization of the holographic image is achieved by short-term induction heating. The solution provides for increase of protective properties of the holographic element, and complication of visualization of the key signs.