Biometric imaging arrangement for infrared imaging comprising a waveguide formed on an image sensor
US12008835B2 · kind B2 · utility
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17Claims
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Assignee
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Key dates
| Filing date | Sep 29, 2021 |
| Grant date | Jun 11, 2024 |
| Priority date | — |
| Expiry date | Sep 29, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/29
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.