Focus test method for staring and undersampled sensors

Details Focus test method for staring and undersampled sensors Focus test method for staring and undersampled sensors

1995-03-14

1996-10-08

Fields, Carolyn E.

Radiant energy

Infrared-to-visible imaging

Including detector array

2502014, 2502081, G03B 300

Patent

active

055634133

ABSTRACT:
A system (10) for focusing an array (12) of detectors. The invention (10) includes a target (16) disposed in the line-of-sight of the array (12). In accordance with the invention, the target (16) has a plurality of elongate apertures therein. The target (16) is mounted about the line-of-sight of the array relative to an axis extending through the plane of the input aperture of the array and transverse to the line of sight. The array (12) is sampled to provide a plurality of output signals. The output signals have amplitude minima and maxima corresponding to the detection of the apertures by individual detectors in the array (12). The maxima of the output signals are used to focus the array (12).

REFERENCES:
patent: 3986384 (1976-10-01), Giorgi
patent: 4009386 (1977-02-01), Deml et al.
patent: 4701605 (1987-10-01), Ida
patent: 5265958 (1993-11-01), Ludlow
patent: 5404013 (1995-04-01), Tajima

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