Method of marking a document or item; method and device for...

Details Method of marking a document or item; method and device for... Method of marking a document or item; method and device for...

G - Physics

07

D

G07D 7/12 (2006.01) G07D 7/20 (2006.01)

Patent

CA 2684789

Optical identification and/or authentication of a document or item with the help of a marking comprising a random distribution of circular polarized light reflecting particles, the marking being applied to the document or item through an ink, and the reading device exploiting circular polarization to discriminate the flakes from the background.

L'invention concerne une identification et/ou authentification optiques d'un document ou article avec l'aide d'un marquage comprenant une distribution aléatoire de particules réfléchissant la lumière polarisée circulairement, le marquage étant appliqué sur le document ou article par une encre, et le dispositif de lecture exploitant la polarisation circulaire pour distinguer les flocons de l'arrière-plan.

Affiliated with

Also associated with

Rating

Method of marking a document or item; method and device for... 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 of marking a document or item; method and device for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of marking a document or item; method and device for... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1778108