СПОСОБ ЗАЩИТЫ ИЗДЕЛИЙ ИЗ БЛАГОРОДНЫХ МЕТАЛЛОВ ОТ ПОДДЕЛКИ (ВАРИАНТЫ)

摘要

The essence of the invention: hereinafter are described six variants of protection of articles made of precious metals from imitation by means of an informative mark applied to the article. In variants 1 and 2 the method of photolithography is used to apply a mark to the surface of an article with the image of the mark formed from a film of amorphous adamantine substance. Variant 3 suggests to apply the mark to the article surface as a combination of holographic microrelief and macrorelief. Variant 4 suggests to apply the mark to the surface as an encoded hologram while in variants 5 and 6 the mark microrelief is covered with amorphous adamantine substance.