Ultra-wide-field low-distortion high-pixel optical system and lens used by the same
An optical system, ultra-wide-angle technology, applied in optics, optical components, instruments, etc., can solve the problems of large number of lenses and complex structure, and achieve the effect of few lenses, simple structure and good optical performance
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[0022] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0023] Such as figure 1 As shown, the ultra-wide-angle, low-distortion, and high-pixel optical system sequentially includes at least a first lens 1, a second lens 2, a third lens 3, a fourth lens 4, and a fifth lens 5 along the optical axis from the object plane to the image plane. The sixth lens 6 and the seventh lens 7 .
[0024] 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;
[0025] The object plane side of the second lens 2 is a plane, the image plane side is a convex surfa...
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