COLORING FORGERY PREVENTION STRUCTURE AND COLORING FORGERY PREVENTION MEDIUM

摘要

A forgery prevention structure configured by layering at least a relief forming layer, a first reflection layer, a functional thin film layer, and a second reflection layer, in this order, characterized in that: the relief forming layer has, on one side, a relief structure which has an effect of diffracting, scattering, absorbing, and polarizing/separating at least a part of a wave-length range of visible light; the first reflection layer and the functional thin film layer are provided along a whole surface of an uneven area of the relief structure; the second reflection layer is provided in an arbitrary area which covers a part of the uneven area of the relief structure.