公开(公告)号：US12008835B2

公开(公告)日：2024-06-11

申请号：US18028912

申请日：2021-09-29

Applicant: Fingerprint Cards Anacatum IP AB

Inventor： Johan Hammersberg ,  Pontus Jägemalm

IPC: G06K9/00 ,  G06V10/145 ,  G06V40/13

CPC classification number: G06V40/1318 ,  G06V10/145

Abstract: The present invention relates to a biometric imaging arrangement comprising: an image sensor comprising a detector pixel array configured to detect infrared radiation transmitted from an object for capturing an image, a waveguide structure arranged on the image sensor to cover the detector pixel array, the waveguide structure comprising optical decoupling areas configured to orthogonally redirect infrared light received from a side of the waveguide structure towards the object when being placed for imaging.