Walger, ThomasHersch, Roger DBrugger, Jürgen2022-04-042022-04-042022-04-042022https://infoscience.epfl.ch/handle/20.500.14299/186861The present invention proposes a method for producing an authenticable moiré shape that simultaneously moves and shows a beating effect. The method relies on a combination of the 1D or the 2D moiré and the level line moiré. When tilting a compound showing such a moiré, the moiré 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.patentUS11351810US202207289280470448