Super wide-angle spherical fisheye optical system
An optical system and ultra-wide-angle technology, applied in the field of optical systems, can solve problems such as aspheric surfaces, complex structures, and a large number of lenses, and achieve the effect of fewer lenses, small volume, and simple structure
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[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.
[0024] like figure 1 As shown, the super wide-angle spherical fisheye optical system is sequentially arranged along the optical axis from the object plane to the image plane: a first lens 1, a second lens 2, a third lens 3, a fourth lens 4, a fifth lens 5 and The sixth lens 6 .
[0025] The object plane side of the first lens 1 is a convex surface, the image plane side is a concave surface, and its focal power is negative;
[0026] The object plane side of the second lens 2 is a convex surface, and the image plane side is a concave surface, and its focal power is negative;
[0027] The object plane side of the third lens 3 is a convex surface, and the image plane side is a concave surface, and its focal power is negative;
[0028] The object plane side of the fourth lens 4 is a convex surface, the image plane side is a convex surface, and i...
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