Large-view-field low-distortion lens
A large field of view and lens technology, applied in the field of fixed-focus lenses, can solve the problems of large distortion and stray halo of large field of view lenses, achieve large field of view and low distortion imaging, eliminate the influence of vacuum environment, and prevent the influence of stray light. Effect
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[0044] The present invention will be further described below in conjunction with accompanying drawing.
[0045] Such as figure 1 As shown, it is a schematic structural diagram of the large-field-of-view low-distortion lens of the present invention. The lens includes 11 lenses, 3 aspherical lenses in the 11 lenses, and two cemented lens groups, and adopts anti-telephoto matching improved double Gauss structure. Specifically, it includes a first negative lens 1, a second negative lens 2, a third negative lens 3, a fourth negative lens 4, a fifth positive lens 5, a sixth positive lens 6, The seventh doubled lens group 7, the eighth positive lens 8, and the ninth doubled lens group 9, wherein the first negative lens 1, the second negative lens 2 and the third negative lens 3 constitute the reverse telephoto lens group, the fourth negative lens 4 and the fifth positive lens 5 constitute the first half of the improved double Gauss mirror group, the sixth positive lens 6 and the se...
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