On-chip spectral filtering using CCD array for imaging and spectroscopy
US7280205B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2006 |
| Grant date | Oct 9, 2007 |
| Priority date | — |
| Expiry date | Oct 30, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J3/4406
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A spectral filtering apparatus and method is presented, which enables the functions of hyperspectral imaging to be performed with increased speed, simplicity, and performance that are required for commercial products. The apparatus includes a photosensitive array having a plurality of photosensitive elements such that different subsections of photosensitive elements of the array receive light of a different wavelength range of a characteristic spectrum of a target, and output electronics combines signals of at least two photosensitive elements in a subsection of the array and outputs the combined signal as a measure of the optical energy within a bandwidth of interest of the characteristic spectrum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.