Patent · US Active

Hyperspectral filter structure and method of manufacture

US12426391B2 · kind B2 · utility

0Cited by

0References

21Claims

0Family size

Assignee

Spectricity · BE

Inventors

Jonathan Borremans · Lier, BE
Ruben Lieten · Heverlee, BE
Maarten De Bock · Wondelgem, BE
Ward Van Der Tempel · Bonheiden, BE

Key dates

Filing date	Apr 4, 2022
Grant date	Sep 23, 2025
Priority date	—
Expiry date	Dec 9, 2043

Classification

Technology area (CPC H)Electricity
CPC primaryH10F39/806
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A sensor system includes a plurality of optical sensors implemented in a pixel layer of an integrated circuit and a plurality of sets of optical filters implemented proximal to the pixel layer in a plurality of alternating filter layers. An optical filter of a set of optical filters includes a plurality of filter components implemented in a stack and is configured to pass a respective target wavelength range of light to one or more optical sensors of the plurality of optical sensors. One or more filter components of the plurality of filter components in a filter layer of the plurality of filter layers is common to a plurality of optical filters of a set of optical filters.

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