Dot matrix Hologram

Dot-matrix holograms consist of millions of tiny diffraction gratings, or “holopixels”, oriented at different angles and arranged in a two-dimensional array. These holograms have a maximum resolution of 10 micrometres per optical element and are produced on specialized machines making forgery difficult and expensive. To design optical elements, several algorithms are used to shape scattered radiation patterns. This hologram is viewable from every angle.