Spectrum-forming device on an optical sensor with spatial rejection
US8026484B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2007 |
| Grant date | Sep 27, 2011 |
| Priority date | — |
| Expiry date | Nov 23, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J3/2823
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Optical device comprising: a spatial filter means for eliminating, from the light rays emanating from an observed scene those coming from a direction or restricted range of directions in space, while letting through most of the light rays coming from said scene; means for varying the direction or the restricted range of directions in space in correspondence with which the spatial filter means eliminates said light rays; a spectral dispersion means for imparting to the light rays coming from said spatial filter means a deviation that is dependent on their wavelength; and an image detector for recording the light rays dispersed by said spectral dispersion means, each point on said image detector receiving light rays coming from said scene and having a different wavelength depending on the direction in space from which they come.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.