Low-distortion fisheye lens
A fisheye lens and lens technology, applied in optical components, optics, instruments, etc., can solve the problems of large distortion of fisheye lens properties, image deformation, short focal length, etc., and achieve smooth light trend, reduced distortion, and good aberration correction. Effect
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[0037] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only parts related to the present invention are shown in the drawings but not all content.
[0038] As shown in Figure 1, the present invention provides a low-distortion fisheye lens, comprising a first lens with convex-concave negative refractive power arranged in sequence from the incident direction of light, a second lens with convex-concave negative refractive power, and a double-concave negative optical power lens. Power third lens, biconvex plus fourth lens, biconvex plus fifth lens, biconvex plus sixth lens, concave-convex minus seventh lens, biconvex plus focal powe...
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