SECURITY MEDIUM AND AUTHENTICITY DETERMINATION METHOD USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a security medium that determines authenticity by combination, and an authenticity determination method using the same.

SOLUTION: The security medium includes a three-dimensional microstructure array in which a plurality of three-dimensional microstructures are arranged at a first pitch. A determination sheet that has a micro lens array in which a plurality of micro lenses are arranged at a second pitch different from the first pitch is overlaid on the three-dimensional microstructure array. The three-dimensional microstructures are positioned substantially on the focal position of the micro lenses, thereby enabling the enlarged three-dimensional microstructures to be observed.

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