MLI (Multiple Laser Image) and CLI (Changeable Laser Image) are advanced security features used in polycarbonate ID cards.
These technologies use laser engraving at different angles or depths to create images that change when viewed from different perspectives. This makes duplication extremely difficult and enhances anti-counterfeiting protection.
PIOTEC laser-based personalization systems support MLI/CLI implementation, widely used in national ID and driver's license projects.
