Abstract: A spectral rejection device for forming an image on an optical sensor, including a system for forming a beam of light rays coming from an observed scene, a scanning system, a system for spectrally dispersing the beam in a direction, at least one mask disposed on the path of the dispersed rays to intercept a narrow band of wavelengths, and a system for combining the dispersed rays into a beam of parallel rays focused by a lens onto an optical sensor.
The invention applies in particular to the spectral analysis of a luminous flux coming from an observed scene.
Type:
Grant
Filed:
June 25, 2001
Date of Patent:
September 16, 2003
Assignee:
Architecture, Traitement D'Images et Simulation
Abstract: A spectral rejection device for forming an image on an optical sensor, including a system for forming a beam of light rays coming from an observed scene, a scanning system, a system for spectrally dispersing the beam in a direction, at least one mask disposed on the path of the dispersed rays to intercept a narrow band of wavelengths, and a system for combining the dispersed rays into a beam of parallel rays focused by a lens onto an optical sensor.
Type:
Application
Filed:
June 25, 2001
Publication date:
January 31, 2002
Applicant:
ARCHITECTURE, TRAITEMENT D'IMAGES ET SIMULATION