Interferometric device having a controllable Fabry-Perot
US5059026A · kind A · utility
9Cited by
1References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 12, 1990 |
| Grant date | Oct 22, 1991 |
| Priority date | — |
| Expiry date | Jul 12, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/067
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An interferometric device for the detection of substances having a periodic or quasiperiodic absorption structure of their absorption spectrum includes a source of radiation, a chamber containing the material to be investigated and a downstream detector, a thermo-optically effective and temperature controlled interference filter means is interposed, its thickness determines the spacing of interference transmission lines and temperature control shifts these lines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.