Patent · US Active

Fingerprint acquisition device

US11854295B2 · kind B2 · utility

0Cited by

0References

8Claims

0Family size

Assignee

IDEMIA IDENTITY & SECURITY FRANCE · FR

Inventors

Denis Dumont · Courbevoie, FR
Sylvain Maillard · Issy-les-Moulineaux, FR

Key dates

Filing date	Apr 29, 2022
Grant date	Dec 26, 2023
Priority date	—
Expiry date	Apr 29, 2042

Classification

Technology area (CPC G)Physics
CPC primaryG06V40/1394
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A fingerprint acquisition device comprising, a space for receiving a finger of a user, a light source configured to emit a illumination light illuminating the space, a camera configured to acquire an image of a fingerprint of the finger, when the finger is received in the space, and, a polarization system configured to polarize the illumination light before the illumination light reaches the space and after the illumination light has passed through the space, and to polarize an ambient light emanating from outside the device and propagating towards the camera, before the ambient light reaches the space, and to polarize the ambient light after the ambient light has passed through the space.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.