Secure holographic images on paper
Secure optical identification means and method with enhanced var
Secure optical identification method and means
Secure optical identification method and means
Secured document, system for manufacturing same and system...
Secured document, system for manufacturing same and system...
Security device
Security device
Security device
Security device based on customized microprism film
Security device using parallax movement to view front and...
Security device with metameric features using diffractive...
Security document with an optical security area
Security element
Security hologram with covert messaging
Security system, particularly for valuable documents
Security system, particularly for valuable documents
Semi-transparent reflective layer for a phase hologram
Semi-transparent reflective layer for a phase hologram
System and method for encoding and decoding an image or...