Anti-counterfeit security and methods for its production and...
Apparatus for recording optical information
Apparatus for recording optical information
Authenticity indicator
Bar code incorporated into holographic display
Bi-directional informational article within an optical...
Coated paper sheet embossed with a diffraction or holographic pa
Compact zoom lens
Computer generated holographic microtags
Covert security coating
Data carrier having an optically variable element and methods fo
Data carrier having an optically variable element and...
Data carrier having an optically variable element and...
Data carrier with an optically variable element
Device with anti-counterfeiting diffractive structure
Diffractive safety element
Diffractive security device on compact discs
Dot matrix hologram for hiding a moire pattern
Double hologram
Embedded information carrier for optical data