Optically blocked reference pixels for focal plane arrays
US7262412B2 · kind B2 · utility
5Cited by
8References
48Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 31, 2005 |
| Grant date | Aug 28, 2007 |
| Priority date | — |
| Expiry date | May 31, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/809
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods for making optically blind reference pixels and systems employing the same. The reference pixels may be configured to be identical to, or substantially identical to, the active detector elements of a focal plane array assembly. The reference pixels may be configured to use the same relatively longer thermal isolation legs as the active detector pixels of the focal plane, thus eliminating joule heating differences. An optically blocking structure may be placed in close proximity directly over the reference pixels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.