Abstract
Hyper spectral imaging technology is widely applied in military scout and target recognition with imaging and spectral integration. To acquire different size image and field of view, a kind of zoom hyper spectral optical system is designed in this paper. The working spectrum is from 400nm to 1000nm. The detector size is 6.4mm×4.8mm. F# is from 3.5 to 5.6, and the focal length is from 28mm to 80mm. With consideration of the reasonable MTF requirement of back relay system and the visibility threshold of human eyes, which is the final receiver, the design requirements are analyzed. The initial structure is acquired by zoom method. After optimization, the image quality of every focal length and every spectrum meets the analyzed requirements. At last, to ensure the stable image during zoom process, the cam curve is calculated with image stable theory of dynamic optics.
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