SYSTEM FOR ACQUIRING THREE-DIMENSIONAL FINGERPRINTS AND METHOD OF ACQUISITION
First Claim
1. System for acquiring relief prints, characterized in that it comprises:
- a support (1) intended to receive at least the object whose print is to be captured;
optical image recording means (2);
optical means (3) for imaging the face of the finger on the recording means.
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Accused Products
Abstract
The invention concerns a system for acquiring three-dimensional fingerprints, characterised in that it comprises: a medium (1) for receiving at least the object whose print is to be taken; optical image recording means (2); means for optical imaging (3) of the surface of the finger on the recording means. This system is applicable for acquiring fingerprints. It comprises various means for immobilising the hand.
Syst{acute over (e )}me d'"'"'acquisition d'"'"'empreintes en relief, caractérisé en ce qu'"'"'il comprend: un support (1) destiné à recevoir au moins l'"'"'objet dont on doit relever l'"'"'empreinte; des moyens d'"'"'enregistrement optique d'"'"'image (2); des moyens optiques d'"'"'magerie (3) de la face du doigt sur les moyens d'"'"'enregistrement Ce systéme est applicable à l'"'"'acquisition d'"'"'empreintes digitales. Il comporte différents moyens pour caler la main.
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Citations
31 Claims
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1. System for acquiring relief prints, characterized in that it comprises:
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a support (1) intended to receive at least the object whose print is to be captured;
optical image recording means (2);
optical means (3) for imaging the face of the finger on the recording means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 30, 31)
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29. Process for acquiring fingerprints characterized in that:
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a layer of a material containing metal is deposited on the surface of the finger whose print it is desired to capture;
the said surface is illuminated with a polarized illuminating light;
the said illuminated surface is imaged on the recording means by way of a polarization analyser whose direction of polarization is parallel or perpendicular to the direction of polarization of the illuminating light.
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Specification