Wide-Band Folded-Reflective Aerial Camera

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.