Compact catadioptric imaging spectrometer utilizing reflective grating
US6980295B2 · kind B2 · utility
25Cited by
11References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 6, 2003 |
| Grant date | Dec 27, 2005 |
| Priority date | — |
| Expiry date | Mar 1, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J3/0297
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An imaging spectrometer apparatus comprising an entrance slit for directing light, a light means for receiving the light and directing the light, a grating that receives the light from the light means and defracts the light back onto the light means which focuses the light, and a detector that receives the focused light. In one embodiment the light means is a rotationally symmetric ZNSE aspheric lens. In another embodiment the light means comprises two ZNSE aspheric lenses that are coaxial. In another embodiment the light means comprises an aspheric mirror and a ZNSE aspheric lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.