Security document

Details Security document Security document

B - Operations, Transporting

42

D

B42D 15/00 (2006.01) B42D 15/10 (2006.01) G02B 1/00 (2006.01)

Patent

CA 2758376

A security document (100) has a security device comprising a region of piezochromic material (110) attached to a first part of the document. A contact structure (105) is attached to a second part of the document, different from the first part. The contact structure exhibits relief. When the security device is pressed against the contact structure an optical effect is generated within the piezochromic material which represents the contact structure.

L'invention concerne un document de sécurité disposant d'un dispositif de sécurité comprenant une zone en matière piézochromique fixée sur une première partie du document. Une structure de contact est fixée à une seconde partie du document, qui diffère de la première partie. La structure de contact présente un relief. Lorsque le dispositif de sécurité est appuyé sur la structure de contact, un effet optique est généré dans la matière piézochromique qui représente la structure de contact.

Affiliated with

Also associated with

Rating

Security document 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 document, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Security document will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1417441