FIELD: criminalistics. SUBSTANCE: device has prism which operates at critical angle for total reflection, correcting prism and image forming optical system. Image forming optical system has two positive components which have focuses to be coincided and aperture diaphragm disposed in point of focus coincidence. Device has non-distorted image of print of finger on its array photodetector. EFFECT: improved precision. 1 dwg
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Authors
Dates
1994-11-15—Published
1992-05-28—Filed