FIELD: medical engineering.
SUBSTANCE: device has radiation source, prism having input, output and fingerprint-perceiving surfaces, a set of photoreceiver units electrically connected to image processing unit and hollow cushion manufactured from flexible optically transparent material filled with immersion liquid and glued to the fingerprint-perceiving surface with optically transparent glue.
EFFECT: high quality of fingerprint images.
1 dwg
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Authors
Dates
2007-09-20—Published
2006-02-20—Filed