SECURITY CARD HAVING 3-DIMENSIONAL MICRO-STRUCTURE AND RECOGNIZING METHOD OF IT

摘要

PURPOSE: A security card equipped with a 3D structure and a recognizing method for the security card are provided to prevent a credit card/security card which is required for the security from being stolen and copied. CONSTITUTION: The security card(10) includes the 3D stereographic structure(11) of which the light penetration is possible. The 3D structure is the size of hundreds micrometer and is manufactured with nano or micro stereographic lithography process. When the light is penetrated, the pattern of the 3D structure is generated due to the refraction difference between the 3D structure and a card plate.