TagsOptical coherence tomography

Tag: optical coherence tomography

Authentication technique composite substrates

Composite substrates that contain paper and polymer layers with the same thickness as traditional security paper are novel options for security documents, and unique...

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Infrared ink

When checking a document with the use of infrared light, text and/or images in or on the substrate become either visible or invisible, depending...

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Keesing Journal 13

General interest: Passports: a world tour A new symbol for instant recognition Optical Document Security, Third Edition Cases analysed: RFID Privacy in ID and travel...

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