Abstract
The moiré effect in multi-layered cylindrical objects was studied theoretically and experimentally. In theory, the central projection of double-layered convex and concave half-cylinders was considered. Based on the projected period expressed analytically in terms of the incidence angles, the period of the moiré patterns on the axis was obtained as the closed-form expression; the off-axis effect was analyzed qualitatively. The distance was discovered, where the period as the function of the angle is nearly constant. The experiments performed with two cylindrical devices confirm the theory. The results can be applied to nanoparticles and curved/flexible displays.
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