Compact catadioptric imaging spectrometer utilizing...

Details Compact catadioptric imaging spectrometer utilizing... Compact catadioptric imaging spectrometer utilizing...

2005-12-27

2005-12-27

Evans, F. L. (Department: 2877)

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

C250S339070

Reexamination Certificate

active

06980295

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.

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