Authentication device, which comprises a Safety Marking of circular polarization, a Light Source and Polarisation filters and visual and automated methods for authentication of the marked

摘要

The Invention discloses an Authentication Device for Visual Authentication of a document or item that includes a security Marking of circular polarization, Said Device comprises a light source for Lighting and Polarizing Filters or parallel Alternating Said Mark Or the document with circular Polarized Light levorotatory and dextrorotatory.Also disclosed are methods for Automated visual Authentication and marked.