Method and apparatus for authenticity testing a security...

Details Method and apparatus for authenticity testing a security... Method and apparatus for authenticity testing a security...

B - Operations, Transporting

42

D

B42D 15/00 (2006.01) G07D 7/12 (2006.01)

Patent

CA 2493211

The invention relates to a method whereby a difference image is generated from two images taken of a security element, using right- and left-circular polarising filters and which is used to check the authenticity of the security element and a device for carrying out the above method.

L'invention concerne un procédé consistant à obtenir une image d'une différence, produite à partir de deux images d'un élément de sécurité au moyen de filtres à polarisation circulaire droite et gauche, utilisée afin d'évaluer l'authenticité de l'élément de sécurité. L'invention concerne aussi un dispositif de mise en oeuvre de ce procédé.

Affiliated with

Also associated with

Rating

Method and apparatus for authenticity testing a security... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for authenticity testing a security..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for authenticity testing a security... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1555748