Patent · US Active

Biometric imaging device

US11398110B2 · kind B2 · utility

0Cited by

0References

19Claims

0Family size

Assignee

FINGERPRINT CARDS ANACATUM IP AB · SE

Inventors

René Nilsson · Eslöv, SE
Jun Liu · South San Francisco, US
Ehsan Hashemi · Waterloo, CA

Key dates

Filing date	Sep 17, 2018
Grant date	Jul 26, 2022
Priority date	—
Expiry date	Sep 17, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG06V40/107
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A biometric imaging device configured to be arranged under an at least partially transparent display panel and configured to capture an image of an object located on an opposite side of the transparent display panel. The biometric imaging device comprises an image sensor comprising a photodetector pixel array; a transparent substrate covering the photodetector pixel array; a first set of microlenses configured to redirect light through the transparent substrate and onto a subarray of pixels in the photodetector pixel array. The lenses in the first set have a first focal length. A second set of microlenses configured to redirect light through the transparent substrate and onto a subarray of pixels in the photodetector pixel array. The lenses in the second set of microlenses have a second focal length which is different from the first focal length.

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