To achieve all-weather observations in the 15000 m stratosphere and meet the ground resolution of 470-1500 nm,a long-forward charge-coupled device(CCD)aerial camera was proposed.By correcting the secondary spectra generated by the long focal length and large aperture using H-ZK 7 with ZF6,the rate color difference control meets the design requirements.The temperature curve of the system at different heights was analyzed via thermal analysis of the optical system.The detector adopted a full-frame CCD detector with a single image element of 8 μm and a target surface size of 48 mm×36 mm;the system reached the diffraction limit at 100 lp/mm,fulfilling the imaging requirements of the system.
optical system designCCD high resolutionsecondary spectrumfolded-reflective structurewide band
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