Ecole Polytechnique Federale De Lausanne

Jürgen Brugger

Roger David Hersch

Thomas Walger

The present invention proposes a method for producing an authenticable moir&#xe9; shape that simultaneously moves and shows a beating effect. The method relies on a combination of the 1D or the 2D moir&#xe9; and the level line moir&#xe9;. When tilting a compound showing such a moir&#xe9;, the moir&#xe9; shape moves, its intensity levels change significantly but its shape remains the same and is recognizable. Embodiments comprise a base layer made of patterned metallic tiny shapes and a revealing layer made of a 1D array of cylindrical lenslets or of a 2D array of spherical or aspherical lenslets.

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Vufflens-la-Ville, Switzerland

Jürgen Brugger