FIELD: medicine.
SUBSTANCE: invention relates to medical equipment, in particular to field of biometric identification of individuals. Afocal system of skin pattern scanning contains multi-element source of irradiation 9, optic system, which includes sensor optic element 1 with angle of complete internal reflection, two positive lens component 2,4, which form afocal dually telecentric optic system, forming optic bundle, determining optic image of skin print, satisfying condition of angular connection of object planes and image and multi-element photoreceiver 6. Source of irradiation 9 and multi-element photoreceiver 6 are connected with controller 13. First lens component consists of plano-convex lens 2, facing with convexity image space, second component consists of plano-convex lens 4, facing with convexity image space.
EFFECT: system application will make it possible to obtain high-quality finger prints with small distortions and high resolution in accordance with modern requirements as to the quality of dactyloscopic information, as well as reduce device dimensions.
7 cl, 6 dwg
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