Double monochromator
US4453826A · kind A · utility
4Cited by
3References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 8, 1982 |
| Grant date | Jun 12, 1984 |
| Priority date | — |
| Expiry date | Feb 8, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J3/18
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pre-monochromator having a grating monochromator includes an unsymmetrically ruled concave diffraction grating, by means of which a light source is directly imaged upon an exit slit. The diffraction grating is unsymmetrical with respect to the distribution of the grating constants such that the image distance remains substantially constant during the rotation of the diffraction grating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.