Abstract
In the field of airborne photoelectric detection, medium wave imaging lenses with large field of view are mainly used for assistant navigation. A new type of optical system of wide field of view is introduced in this paper. It has compact structure, and could match cooling medium wave IR detector with different F numbers. It is proved that the system could realize the large field of view, image illumination uniformity, low distortion, the same resolution in the whole field of view. The structure of the imaging system introduced in this paper provides a reference for the design of medium wave detection system of large field of view of Variable F number.
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