Abstract: Under the attack of counterfeit goods, we are always seeking new anti-counterfeiting technology .For its superior advantages, the moiré pattern came into our views and became the focus of the public. Firstly a deep analysis and research of the moiré pattern through Geometric analysis was provided in this article, in conjunction with the mechanism of its production as well as its equations in printing. After that , through integrating with the practice, the main factors that affects the moiré pattern was discovered, such as the fit angles , frequency, shape and microstructure of the original pictures. Finally, this article discussed the design principle of the moiré security pattern, and the different patterns about it were concluded with impression drawings. Such patterns for security mainly included zoom behavior, composing and coding.
Keywords: moiré；anti-counterfeiting；superimposed；source pattern；optical
