Fourier transform spectroscope with quadrangular common path interferometer
US5495334A · kind A · utility
16Cited by
5References
3Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jul 25, 1991 |
| Grant date | Feb 27, 1996 |
| Priority date | — |
| Expiry date | Jul 25, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J2009/0223
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for effecting spatial Fourier transform spectroscopic detection of light from a surface luminescent object with high sensitivity by use of a quadrangular common path interferometer. The apparatus includes an improvement which consists of an additional imaging optical system which converges a light beam from the specimen so as to enter the beam splitter. The additional imaging optical system is disposed so that an image position is substantially coincident with the position of the second of three mirrors in the apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.