Metal-based digital coins with a protruding identification pattern ensuring high recognition rate

摘要

The electronic metal coin and the electronic metal token according to an embodiment of the present invention are a unique identification pattern formed in at least one microstructure on at least one surface of the metal coin and formed on at least one surface of the metal coin, A protrusion for reflecting at least a portion of the incident light in a direction different from the direction reflected from the surface of the metal coin is included, and the unique identification pattern is characterized in that the shape of the pattern is changed according to the unique identification information.