MLI/CLI (multiple and changeable laser image)

Combination of a lens structure integrated to the surface of the document with elements engraved or printed into a bottom layer. Multiple images can be observed depending on the viewing angle. MLI effects tilt top to bottom with horizontal lenses. CLI effects tilt side to side with vertical prism lenses.

Below photo illustrates the MLI/CLI effect – a flip image. The small photo in the middle of the card changes to a numeral depending on the angle viewed.