Double pass monochromator
US6166805A · kind A · utility
18Cited by
2References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 9, 1999 |
| Grant date | Dec 26, 2000 |
| Priority date | — |
| Expiry date | Jul 9, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J3/1804
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to a double pass monochromator that improves wavelength resolution and reduces the actual length thereof. A return reflection means 7 that reverses the direction of dispersion of the wavelength of the second pass light 1c, 1f emitted and incident on a diffraction grating 4 during the reflection. In addition, the angles of the incident and emitted light during separation of spectral components by the diffraction grating are identical during the first and second diffraction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.