1. Uniform Source System for radiometric calibrations, used to determine the limits of precision of a hyperspectral imager, calibrated by the National Institute of Standards and Technology. Includes the following components: 12-inch diameter integr ating spheres designed to provide uniform luminance over the full 4-inch diameter sphere exit port, luminance output from 2,300 to 9,000 foot-lamberts, calibrated to read luminance in foot-lamberts, outfitted with 4 internally mounted 30-watt halogen light sources and 4 lamp power supplies that provide regulated DC constant current control to the light sources. Each light source may be separately activated to achieve 4 adjustable output levels. 2. Spectralon Diffuse Reflectance Targets, 24 inches by 24 in ches, with back-light illuminators, environmental test targets, laser targets, optical reflectors.

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