Multi-band Common Aperture Infrared Imaging Search and Track Device

Abstract

The invention discloses a multi-band common aperture infrared imaging search and tracking device, wherein the imaging system is arranged on the search and track turntable, rotates with the rotation of the search and track turntable, and receives multi-band light through an optical window arranged on the search and track turntable; Multi-band light, after passing through the off-axis three-mirror afocal lens group, enters the beam splitter, and the beam splitter separates the long-band light and the middle-band light. The wave-band light passes through the medium-wave reflector and is imaged on the medium-wave infrared detector; during the rotation of the search-and-track turntable, the long-wave reflector and the medium-wave reflector counteract the forward rotation of the search-track turntable through reverse rotation. By adopting the above technical solution, the miniaturization and light weight of the tracking device are realized, and the imaging effect is improved.

Description

technical field [0001] The invention relates to the technical field of light detection equipment, in particular to a multi-band common aperture infrared imaging search and tracking device. Background technique [0002] With the increase of ultra-low-altitude flying targets, it is necessary to accurately detect and track ultra-low-altitude targets. The ultra-low-altitude application scenarios are very complex, which puts forward higher requirements for optoelectronic equipment. Single-band infrared imaging can only adapt to some scenes, so it needs multiple bands for long-distance imaging detection, and provides target information in multiple bands. While providing target multi-band information, the miniaturization and weight of the system should also be considered. [0003] In the prior art, the multi-band imaging search and tracking equipment for ultra-low-altitude flying targets usually uses a multi-aperture structure, and each aperture corresponds to a wavelength band. H...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, multi-band imaging search and tracking equipment for ultra-low-altitude flying targets usually use a multi-aperture structure, and each aperture corresponds to a band. However, equipment using a multi-aperture structure requires a large space for each aperture. , so it is difficult to realize the miniaturization and light weight of the equipment. At the same time, the imaging of the flying target requires multi-aperture image fusion, and there are easy differences and noises between the images of each aperture, so the final imaging effect is not ideal.

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