Infrared imaging device readily removing optical system contribu

Details Infrared imaging device readily removing optical system contribu Infrared imaging device readily removing optical system contribu

1994-09-20

1996-12-31

Tran, Thai Q.

Television

Responsive to nonvisible energy

Infrared

348241, 250332, H04N 5217, H01L 2500

Patent

active

055898769

ABSTRACT:
An infrared imaging device including infrared solid state image sensing device having an image area where first infrared detectors for detecting infrared image signals are arranged in a two-dimensional array form and infrared detector groups composed of at least two kinds of second infrared detectors having different sensitivity characteristics. A processing part calculates and processes infrared image signals output from the first infrared detectors on the basis of basic data which are previously prepared as characteristics of the output signals of the second infrared detectors to remove a optical system contributory component as a noise component radiated from the infrared imaging device itself or its optical system to obtain an infrared intensity distribution image or a true temperature distribution image of an object with high reliability.

REFERENCES:
patent: 4246480 (1981-01-01), Clark
patent: 4757200 (1988-07-01), Shepherd
patent: 5095211 (1992-03-01), Kimata
patent: 5444484 (1995-08-01), Yutani et al.

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