DEVICE FOR RECORDING PAPILLARY PATTERN Russian patent published in 2002 - IPC

FIELD: medical engineering. SUBSTANCE: device has finger imprint reading surface, projective optical system, light source, deflecting optical system and system of photodetector members connected to each other and synchronously movable and unit for image processing electrically connected to photodetector member system The deflecting optical system is plunged into immersion fluid filling a cell unit one side of which is the finger imprint reading surface. Beside that, projective optical system, light source and system of photodetector members are placed in the same module with the deflecting optical system. The deflecting optical system is a prism having equilateral trapezoid cross-section. EFFECT: wide range of functional applications; small size and low cost. 3 cl, 2 dwg