Fingerprinting arrangement
First Claim
1. Apparatus for optically obtaining and recording skin ridge patterns comprising:
- an arcuate transparent, finger receiving member having an arcuate bore adapted to have a finger having skin ridge patterns thereon inserted therein;
a light source positioned to transmit a beam of light to said finger receiving member and to be reflected therefrom from the interior surface thereon;
a light sensitive film plate positioned in a plane to have the reflected beam of light impinged thereon; and
motion producing means for producing first relative angular motion and second relative motion between said finger receiving member and said sensitive film plate.
5 Assignments
0 Petitions
Accused Products
Abstract
Skin ridge pattern recording apparatus for obtaining and recording skin ridge patterns. A cylindrical transparent element is provided with a central cylindrical bore which, reflects internally. The finger is placed in the bore for producing the skin ridge patterns. The cylindrical element is mounted on a vertical column or post upstanding from a platform which carries a light source projecting a beam of light to the cylindrical element. The light source and a sensitive camera film are carried on a platform which is rotatable with respect to the cylindrical element in which the finger is inserted. The film plane of the camera remains in a fixed relationship with respect to the reflected light from the light source, the angle of incidence being determined by the position of the light source relative to the cylindrical element. The platform is motor driven so that the light source and the film plane of the camera rotate around the cylindrical element to produce the recordation of the skin ridge pattern.
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Citations
10 Claims
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1. Apparatus for optically obtaining and recording skin ridge patterns comprising:
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an arcuate transparent, finger receiving member having an arcuate bore adapted to have a finger having skin ridge patterns thereon inserted therein; a light source positioned to transmit a beam of light to said finger receiving member and to be reflected therefrom from the interior surface thereon; a light sensitive film plate positioned in a plane to have the reflected beam of light impinged thereon; and motion producing means for producing first relative angular motion and second relative motion between said finger receiving member and said sensitive film plate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification