Security feature comprising a perforation pattern

Details Security feature comprising a perforation pattern Security feature comprising a perforation pattern

B - Operations, Transporting

42

D

B42D 15/00 (2006.01) G06K 19/06 (2006.01)

Patent

CA 2271049

The invention relates to a document to be protected against forgery, comprising a security feature in the form of a perforation pattern, wherein the perforation pattern extends over a surface of the document and represents an image comprising brightness tones. The perforation pattern is herein formed such that, for instance when the thus treated document is held up to the light or placed on a light box, an image becomes visible at the location of the perforation pattern. It will be apparent that arrangement of such an image representing brightness tones requires extremely advanced technologies. Such technologies are not easily accessible to potential forgers, so that documents thus provided with such a perforation pattern are very difficult to forge. The perforation pattern is preferably applied by means of laser light.

L'invention se rapporte à un document à protéger contre les falsifications qui comprend un dispositif de sécurité sous la forme d'un motif perforé. Ce motif perforé, qui occupe une surface du document, représente une image faite de tons de luminosité. Le motif perforé est formé de telle manière que, lorsque l'on regarde à contre-jour le document traité avec ce procédé ou que l'on le place sur une table lumineuse, on peut distinguer une image à l'endroit du motif perforé. La création de cette image faite de tons de luminosité, nécessite des techniques très avancées. Ces techniques sont difficilement accessibles aux éventuels falsificateurs, ce qui rend les documents pourvus de ce motif perforé extrêmement difficiles à falsifier. Le motif perforé est, de préférence, réalisé au moyen d'une lumière laser.

Affiliated with

Also associated with

Rating

Security feature comprising a perforation pattern does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Security feature comprising a perforation pattern, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Security feature comprising a perforation pattern will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1508653