Dynamic effect in the moiré magnifier by using the weak domain transformation

The design of an image with dynamic effect usually adopts an interlacing strategy, but it suffers from the crosstalk between the neighboring images. Here, by introduction of the weak domain transformation to the micro pattern array (MPA), striking motion effects are realized with no crosstalk. A complete theoretical model based on both the moiré and fix point theorem is developed for interpretation of the kinetics. A microlens array-based moiré magnifier is fabricated to demonstrate the visually striking motion effect. The moiré magnifier is of primary interest for a wide variety of applications in appealing decoration, information encryption, and displacement measurement, etc.