| 摘要 |
The invention concerns a device with spectral rejection for forming an image on an optical sensor, comprising means (10) forming a beam of light rays (14) derived from an observed scene, scanning means (16), means (24) for spectral dispersion of the beam in one direction, at least a mask (26) interposed on the path of the dispersed rays to intercept a narrow wavelength band, and means (28) for recombining the dispersed rays into a beam of parallel rays focused by a lens (18) on the optical sensor (20). The invention is applicable in particular to spectral analysis of a light flux derived from an observed scene.
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