PAPILLARY PATTERN RECORDING DEVICE Russian patent published in 2004 - IPC

Abstract RU 2231119 C2

FIELD: optical pattern shapers including fingerprinting devices.

SUBSTANCE: fingerprinting device has output surface of its prism turned relative to line of its intersection by plane formed by input beam and that reflected from pick-up surface, angle of turn being 1 to 45 deg.

EFFECT: enhanced quality of pattern, reduced size of device.

1 cl, 3 dwg

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RU 2 231 119 C2

Authors

Trusov A.A.

Dates

2004-06-20—Published

2002-08-30—Filed