Dynamic hidden antifalse pattern and its manufacturing method

An anti-forge hidden dynamic pattern for printed matter, coin, seal, etc features that a hidden pattern is prepared on the basic layer of pattern, the uniformly parallel lines are used to form the minimal shape of hidden pattern, the minimal shape is extended outward by the uniformly parallel lines to form the maximal shape of the hidden pattern, and two kinds of parallel lines has an included angle of 45-90 deg. Its preparing process is also disclosed.