Spatial light beam compression multichannel imaging optical system with large field of view
A technology of imaging optics and large space, applied in optics, optical components, instruments, etc., can solve problems such as the inability to achieve a large field of view, and achieve the effects of good imaging quality, reduced number, and reduced aperture
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[0026] Such as figure 1 As shown, the optical system of the present invention consists of an off-axis three-reflection compressed beam afocal telephoto system (composed of a primary mirror 1, a secondary mirror 2, a first folding mirror 3, and a third mirror 4), a second folding mirror 5, and visible light near infrared / Infrared spectrum dichroic plate 6, medium wave / long wave spectrum color separation plate 7, visible light and near infrared relay lens group 8, visible light and near infrared focal plane device 9, medium wave infrared relay lens group 10, medium wave The focal plane device 11, the long-wave infrared relay lens group 12, and the long-wave focal plane device 13 are composed. The focal length of the front objective lens (primary lens 1 and secondary lens 2) of the afocal telephoto system is f1, the focal length of the rear objective lens (three lens 4) is f2, and the focal lengths of the three relay lens groups are all f3; then the focal length of the afocal tele...
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