Figure 6
From: High-resolution 1D moirés as counterfeit security features
Counterfeiting robustness of high-resolution moirés. Top: optical images of the rectilinear 1D moiré for scaling factors ranging from 96% to 104% of the base layer period. Bottom: graphical representation of both the calculated and experimental height (cm) of the ‘123’ moiré and of the inverted ‘ABC’ moiré as a function of the base layer scaling factor (%).
