WIDE FIELD OF VIEW INFRARED CAMERA WITH MULTI-COMBINED IMAGE INCLUDING THE FUNCTION OF NON-UNIFORMITY CORRECTION

摘要

A multi-section view image acquisition type infrared wide-angle camera with a function of non-uniformity correction according to the present invention includes: a scanning mirror (70) which acquires a field of view more than an angle of 95 degrees by forming an image of each frame with six scanning images (a-1, a-2, a-3, a-4, a-5, a-6) through rotation divided into six stages; a re-imaging optical system which allows the scanning mirror (70) and a cold stop (11) to make an image to enable the effective blocking of adjacent column spill light and the optimization of the size of the scanning mirror; a field stop (60) which is provided on an infrared path to enable the blocking of spill light and the adjustment of transmittance; and a black body corrector which allows the scanning mirror to face the reference plane of a black body (85) while the scanning mirror returns to a starting point after a front image is acquired by rotating the scanning mirror (70). Thus, a clear image to which non-uniformity correction on a detector is applied can be obtained without securing a separate optical path for non-uniformity correction or applying an optical/mechanical mechanism. In particular, an optical system with a long focal distance can be realized while providing a wide-angle field of view to eliminate the disadvantages of a fish-eye type wide-angle optical system, thereby easily detecting and identifying a target.