Method and apparatus for cold shielding
US5994702A · kind A · utility
6Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 9, 1998 |
| Grant date | Nov 30, 1999 |
| Priority date | — |
| Expiry date | Feb 9, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J5/061
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of making and a bellows cold shield wherein only the focused IR energy from the optical system of an IR detector will reach the detector or focal plane array, FPA, and all other radiation will be redirected from reaching the FPA through the use of a bellows cold shield having a predetermined geometrical surface which reflects the undesired light energy away from the FPA, and a microrough interior surface of this geometrical shape which absorbs any of the undesired light energy which is not so reflected away.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.