FIELD: printing.
SUBSTANCE: security element for the security document comprises the first, the second, the third and the fourth linear grid, which contrast with the substrate surface, wherein each said grid is associated with a pattern comprising an embossed substrate structure. The first, the second, the third and the fourth pattern corners differ from each other. The first security information element is encoded in the form of the first localized distribution of the first and the second patterns, the second security information element is encoded in the form of the localized distribution of the third and the fourth patterns. The first and the second security information elements are superimposed on each other. Certain intensity distributions appear in different directions of viewing the security document, by arranging the first and the second patterns in the first grid cells, and the third and the fourth patterns in the second grid cells, and by locating the cells of the first and the second grids alternately, wherein the intensity distribution is used for checking the document authentication.
EFFECT: increasing the information content.
19 cl, 15 dwg
