Secure photographic method and apparatus

G - Physics – 03 – C

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

G03C 1/035 (2006.01) G03C 1/76 (2006.01) G03C 7/00 (2006.01) G03C 5/08 (2006.01)

Patent

CA 2319354

The application of Lippmann photographs as a unique security device on security documents, such as, e.g. identity cards, passports, credit cards is presented. The recording of such photographs requires a special type of photosensitive film layer in contact with a reflecting layer. Panchromatic photopolymer materials can be used and, after being recorded and processed, laminated to security documents. Lippmann photographs are almost impossible to copy and, certainly, cannot be copied by conventional photography or color copying machines.

Cette invention porte sur l'application de la technique de Lippmann relative à la photographie interférentielle qu'on utilise en tant que dispositif de protection spécifique sur des documents de sécurité tels que des cartes d'identité, des passseports,des cartes de crédit. L'enregistrement de ces photographies nécessite la mise en contact d'une couche d'un type spécial de film photosensible avec une couche réfléchissante. Des matériaux photopolymères panchromatiques peuvent être utilisés et, après l'enregistrement et le traitement, être contrecollés sur des documents de sécurité. Les photographies de Lippmann sont pratiquement impossibles à copier, et de toutes manières elles ne peuvent certainement pas être copiées à l'aide de machines photographiques ou de copie en couleurs classiques.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Secure photographic method and apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Secure photographic method and apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Secure photographic method and apparatus will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1484578

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.