Imaging spectrometer utilizing immersed gratings with accessible entrance slit
US7016037B2 · kind B2 · utility
8Cited by
7References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2004 |
| Grant date | Mar 21, 2006 |
| Priority date | — |
| Expiry date | Jun 24, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J3/0297
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A compact imaging spectrometer comprises an entrance slit, a catadioptric lens with a mirrored surface, a grating, and a detector array. The entrance slit directs light to the mirrored surface of the catadioptric lens; the mirrored surface reflects the light back through the lens to the grating. The grating receives the light from the catadioptric lens and diffracts the light to the lens away from the mirrored surface. The lens transmits the light and focuses it onto the detector array.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.