DEVICE FOR RECORDING RIDGE PATTERN Russian patent published in 2010 - IPC A61B5/117 G06K9/20 

FIELD: medicine.

SUBSTANCE: invention relates to devices for ridge pattern recording and can be used in access limitation systems. The device comprises a base with a main rule of temperature-sensitive elements mounted on it, located across the direction of motion of a finger and electrically connected to the block of image processing. On the base two additional rules of temperature-sensitive elements are placed, connected to the block of image processing, which longitudinal axes lie in the same plane perpendicular to the direction of motion of a finger at scanning, and shifted relative to the base rule of temperature-sensitive elements along the direction of movement of a finger. At projection of rules of temperature-sensitive elements to the plane perpendicular to the direction of the finger motion, each of the additional rules of temperature-sensitive elements intersect with one its end with the end of the main rule of temperature-sensitive elements, forming in the projection three sides of isosceles trapezoid, with the part of the projection of the main rule of temperature-sensitive elements between the points of intersection is a smaller base of the trapezoid and the sections of the projections of additional rules of temperature-sensitive elements are the lateral sides. Parts of the rules from the points of intersection of the projections to their nearest ends are not less than 0.5 mm.

EFFECT: use of the invention provides a more complete picture of a finger pattern.

4 cl, 2 dwg