Patent ID: 8736836
Filing Date: 2014-05-27
Classification: G01J

Abstract:
1. A cryogenically cooled imaging spectrometer apparatus, comprising: a spectrometer housing having a first side and a second side opposite said first side, an entrance slit on said first side of said spectrometer housing for directing light, a cross-disperser grating, a echelle immersions grating, a catadioptric lens, and a cryogenically cooled detector on said second side of said spectrometer housing, wherein said light from said entrance slit is directed to said cross-disperser grating, wherein said light is directed from said cross-disperser grating to said echelle immersions grating, and wherein said light is directed from said echelle immersions grating through said catadioptric lens to said cryogenically cooled detector on said second side of said spectrometer housing.