Thermal imager

Details Thermal imager Thermal imager

1988-04-26

1989-09-19

Hannaher, Constantine

Radiant energy

Infrared-to-visible imaging

Including detector array

250334, 358113, H01L 2714

Patent

active

048683892

ABSTRACT:
A thermal imager is provided with a signal processing circuit which compensates for differences in the sensitivities of the thermal detectors. The compensating circuit produces a signal dependent on the mean output of each detector over a predetermined period, stores the signal in a storage device at a frequency of not more than once each field and applies a correction signal derived from the storage device to the detector.

REFERENCES:
patent: 4217608 (1980-08-01), MacGregor et al.
patent: 4298887 (1981-11-01), Rode
patent: 4771175 (1988-09-01), Sirieix et al.

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