Imaging spectroradiometer

Details Imaging spectroradiometer Imaging spectroradiometer

1993-04-19

1995-06-13

Hannaher, Constantine

Radiant energy

Infrared-to-visible imaging

250332, 348271, 348278, 356418, 356419, G01J 328

Patent

active

054245435

ABSTRACT:
A spectroradiometer images a scene as a repeating sequence of spectral images, each of which spectral images depicts the scene at a preselected wavelength. In a preferred embodiment, the image is of size 256 by 192 pixels, and the sequence repetition rate is about 20-30 cycles per second. Full spectral analysis on the resulting sequences is performed substantially in real time. The spectroradiometer includes a light collector with a lens, a circularly variable spectral filter, and an optical gate which gates the output of the filter to a detector array which outputs the sequence of electronic spectral images. These images are corrected for systematic errors and calibrated, and correlated with a preselected spectral response function. The image may be further post-processed and displayed in video format or used otherwise.

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EG&G, "Model 880 Automatic Spectroradiometer" 4 page product brochure (undated).
Mark Dombrowski, "Development and operation of a real-time imaging spectroradiometer," 11 page preprint (undated, but presented Jun. 1992).

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