High-pixel ultra-wide-angle optical system and its application camera module
An optical system and ultra-wide-angle technology, applied in the lens field, can solve the problems of high cost and large number of lenses, and achieve the effect of large viewing angle, small size and simple structure
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[0021] 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.
[0022] Such as figure 1 As shown, the high-pixel ultra-wide-angle optical system of this embodiment is sequentially provided with along the optical axis from the object plane to the image plane 7: a first lens 1, a second lens 2, a third lens 3, a fourth lens 4, and a first lens 4. Five lenses5.
[0023] 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;
[0024] The object plane side of the second lens 2 is a convex surface, and the image plane side is a concave surface, and its fo...
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