OPTICAL IN-DISPLAY FINGERPRINT SENSOR WITH CODED APERTURE MASK

The invention relates to an optical biometric imaging device configured to capture an image of an object in contact with an outer surface of the biometric imaging device, the biometric imaging device comprising: an image sensor comprising a photodetector pixel array; a transparent substrate arranged...

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Bibliographic Details
Main Authors MARTINSSON, Hans, NILSSON, René
Format Patent
LanguageEnglish
French
German
Published 27.10.2021
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Summary:The invention relates to an optical biometric imaging device configured to capture an image of an object in contact with an outer surface of the biometric imaging device, the biometric imaging device comprising: an image sensor comprising a photodetector pixel array; a transparent substrate arranged to cover the image sensor; a transmission mask arranged to cover the transparent substrate, wherein the transmission mask comprises a plurality of openings, the openings forming a coded aperture configured to project a coded image of an object in contact with the outer surface of the imaging device onto the image sensor; and image sensor circuitry configured to capture an image corresponding to the coded image projected onto the image sensor.
Bibliography:Application Number: EP20190854845