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The
RS-12 is a versatile NIST-traceable calibration light source. Use it as a
white-light standard of spectral radiance or luminance. Or, employ its filter/aperture
assembly for an NVIS display simulation source approximating a green cockpit
display with optimal near-infrared output against which a spectroradiometer
or radiometer can be calibrated.
Lower near-infrared output from the tungsten-halogen
lamp reduces the effects of stray light within the monochromator portion
of a spectroradiometer. The RS-12 has a three-inch exit diameter with uniformity of ±3%.
Three calibrations and certificates are supplied. First, a white-light
source calibration is performed from 380 to 1100 nm. Nominal luminance
output is 700
footlamberts and correlated color temperature is set at 2856 K ± 25 K.
The second calibration is with the filter inserted with nominal luminance
output
of 45 footlamberts. The third calibration is with the filter and aperture.
Nominal output is 1 footlambert and 10-10 AR (Anvis Radiance).
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