NO933552L - PROCEDURE FOR THE AA TEST The authenticity of a document - Google Patents

PROCEDURE FOR THE AA TEST The authenticity of a document

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Publication number
NO933552L
NO933552L NO93933552A NO933552A NO933552L NO 933552 L NO933552 L NO 933552L NO 93933552 A NO93933552 A NO 93933552A NO 933552 A NO933552 A NO 933552A NO 933552 L NO933552 L NO 933552L
Authority
NO
Norway
Prior art keywords
document
authenticity
test
signal
relief
Prior art date
Application number
NO93933552A
Other languages
Norwegian (no)
Other versions
NO933552D0 (en
Inventor
Christoph Heckenkamp
Original Assignee
Gao Ges Automation Org
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19873741179 external-priority patent/DE3741179A1/en
Publication of NO933552L publication Critical patent/NO933552L/en
Application filed by Gao Ges Automation Org filed Critical Gao Ges Automation Org
Priority to NO933552A priority Critical patent/NO933552D0/en
Publication of NO933552D0 publication Critical patent/NO933552D0/en

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  • Inspection Of Paper Currency And Valuable Securities (AREA)

Abstract

Det er vist en framgangsmåte for å prøve ektheten av et dokument (1) med et overflaterelieff som foreligger på dokumentoverflata i form av forhøyde og/eller forsenkete områder (18, 20), framstilt som lokale formendringer i dokumentmaterialet, slik at den egentlige tykkelsen av dokumentet (1) er overskridet og/eller underskride! i disse områdene. Dokumentet er minst i et delområde av dette 5 overflaterelieffet delvis utstyrt med et sikkerhetsmønster, idet sikkerhetsmemsteret omfatter minst et luminescerende stoff. Dokumentet belyses med en lyskilde for å oppfatte den dermed synlige luminescerende strukturen med en dertil egnet detektor, som så omvandler dette til et signal. Dette signalet sammenliknes med et lagret referansesignal for å prøve den spesifikke overflatestrukturen på relieffet og al denne 10 er uskadet.There is shown a method for testing the authenticity of a document (1) with a surface relief present on the document surface in the form of elevated and / or recessed areas (18, 20), produced as local shape changes in the document material, so that the actual thickness of the document (1) has been exceeded and / or underwritten! in these areas. The document is at least in a partial region of this surface relief partially provided with a security pattern, the security pattern comprising at least one luminescent substance. The document is illuminated with a light source to perceive the thus visible luminescent structure with a suitable detector, which then converts this into a signal. This signal is compared to a stored reference signal to test the specific surface structure of the relief and all of this is undamaged.

NO933552A 1987-12-04 1993-10-05 PROCEDURE FOR THE AA TEST The authenticity of a document NO933552D0 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NO933552A NO933552D0 (en) 1987-12-04 1993-10-05 PROCEDURE FOR THE AA TEST The authenticity of a document

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19873741179 DE3741179A1 (en) 1987-12-04 1987-12-04 DOCUMENT WITH FALSE-PROOF SURFACE RELIEF AND METHOD FOR PRODUCING THE SAME
NO885010A NO174999C (en) 1987-12-04 1988-11-10 Document with counterfeit-proof surface relief and method of making it
NO933552A NO933552D0 (en) 1987-12-04 1993-10-05 PROCEDURE FOR THE AA TEST The authenticity of a document

Publications (2)

Publication Number Publication Date
NO933552L true NO933552L (en) 1989-06-05
NO933552D0 NO933552D0 (en) 1993-10-05

Family

ID=27196871

Family Applications (1)

Application Number Title Priority Date Filing Date
NO933552A NO933552D0 (en) 1987-12-04 1993-10-05 PROCEDURE FOR THE AA TEST The authenticity of a document

Country Status (1)

Country Link
NO (1) NO933552D0 (en)

Also Published As

Publication number Publication date
NO933552D0 (en) 1993-10-05

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