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US 2007/0182962 A1Published application
Spatial image modulation to improve performance of computed tomography imaging spectrometer
AssigneeCalifornia Institute of Technology
InventorsGregory Bearman, Daniel Wilson, William Johnson
Life of this patent
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Abstract
Computed tomography imaging spectrometers (“CTIS”s) having patterns for imposing spatial structure are provided. The pattern may be imposed either directly on the object scene being imaged or at the field stop aperture. The use of the pattern improves the accuracy of the captured spatial and spectral information.
Claims21
An imaging spectrometer for capturing spatial and spectral information from an object scene comprising:
- a focal plane array detector;
- a primary imaging lens;
- a 2D grating disperser;
- a collimating lens;
- a field stop aperture;
- and
- a pattern for imposing spatial structure in the object scene.
4 more elements
An imaging spectrometer for capturing spatial and spectral information from an object scene comprising:
- a focal plane array detector;
- a 2D grating disperser;
- a primary mirror assembly comprising a first concave mirror and second concave mirror;
- a field stop aperture;
- and
- a pattern for imposing spatial structure in the object scene.
3 more elements
Dependencies are inferred from the claim text.