Irradiated images described by electrical contact

G - Physics – 06 – K

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

G06K 9/00 (2006.01)

Patent

CA 2334620

A device generating images described by contact, in which the contact itself closes an open circuit to generate radiation in a pattern corresponding to the contact. The resulting irradiated image corresponds directly to the contact pattern energizing the radiation. In a preferred embodiment enabled by an electroluminescent system without a back electrode, a fingerprint is disposed to close the open circuit by making contact and thereby serving as a "temporary" back electrode. The electroluminescent then energizes in a pattern corresponding to the contact (i.e. the fingerprint) to emit a high-resolution image of visible light with high fidelity to the contact. This visible light image may then be directed on to a photosensitive array standard in the art suitable for pixelation and conversion into an electrical signal representative of the image. This signal is available for computerized storage, analysis, processing and comparison.

La présente invention concerne un générateur d'images contact (101 de la Figure 1). Le contact ferme lui-même un circuit ouvert de façon à générer un rayonnement dans le dessin touchant le contact. L'image de rayonnement obtenue correspond directement au dessin touchant le contact excitant le rayonnement. Selon une réalisation préférée mettant en oeuvre un système à électroluminescence (100 de la Figure 1) sans contre-électrode, la surface du doigt est présentée en contact de façon à fermer le circuit ouvert. Elle sert donc de contre-électrode "temporaire". Le système d'électroluminescence excite alors la surface du doigt touchant le contact (Figure 1), c'est-à-dire les reliefs de l'empreinte digitale, de façon à émettre vers le contact (Figures 5a, 5b) une image haute résolution fidèle en lumière visible. Cette image en lumière visible peut ensuite être dirigée sur une matrice photosensible standard de pixélisation pour être convertie en un signal électrique représentatif de l'image. Ce signal convient à la mémorisation, l'analyse, le traitement et la comparaison par ordinateur.

LandOfFree

Say what you really think

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

Rating

Irradiated images described by electrical contact does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Irradiated images described by electrical contact, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Irradiated images described by electrical contact will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1604161

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