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Tag: OVD
Innovation drives hologram document protection
It might be more than 65 years since the invention of the hologram but today the technology remains a potent weapon in the ongoing...
Optical effect of novel structural colour OVD
Optically variable devices (OVDs) display special visual effects such as colour-shifting and image-shifting representation. OVDs which are composed of microscopic structures are quite different...
Innovations in Optically Variable Devices
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The increasing need for security is driving global adoption of advanced electronic ID documents as a primary means of confirming identity and right of...
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Emergency travel documents
As security features for travel documents, MRTDs and especially e‑Passports are nowadays much more difficult to counterfeit, fraudsters are increasingly seeking out weaker points...
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Domino
Perceptible relief (in the form of shapes or symbols) added for the benefit of the visually impaired. Domino has the appearance of a domino:...