Optical Anti-Counterfeiting Element, Optical Anti-Counterfeiting Product and Manufacturing Method

Abstract

The disclosure provides an optical anti-counterfeiting element, an optical anti-counterfeiting product and a manufacturing method. The optical anti-counterfeiting element includes: a substrate; a micro-structure forming layer, wherein the micro-structure forming layer is arranged on a side surface of the substrate, the micro-structure forming layer has micro-structures, and a longitudinal section of each of the micro-structures has a preset shape; and a coating layer, wherein the coating layer is arranged on the micro-structure forming layer, the micro-structures are coated with the coating layer to form a coated micro-structure, and a height of each of the coated micro-structures continuously changes; wherein when shapes of the micro-structures have an abrupt-change, the coating layer has a demetallized region, and when a height of each of the micro-structures changes continuously, the coating layer has no demetallized region. The disclosure solves the problem in the related art that an optical effect actually generated by the optical anti-counterfeiting element has large deviation from an expected optical effect.

Dependencies are inferred from the claim text.