Sensing photon energies of optical signals
US7420677B2 · kind B2 · utility
34Cited by
61References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2005 |
| Grant date | Sep 2, 2008 |
| Priority date | — |
| Expiry date | Oct 27, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/6482
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An integrated circuit includes a photosensor array with subrange cells that photosense within respective subranges of an energy range. An optical signal and the array move relative to each other, and, for segments of their relative movement, sets of subrange cells photosense within subranges that are different. For example, a scanning device can cause relative scanning movement. The optical signal can be produced by illuminating a two-dimensional object. The photosensed quantities for a part of the optical signal can be used to produce spectral information for the part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.