High-resolution camera lens

Abstract

A high-resolution camera lens comprises a first lens body with positive refraction power, a second lens body with negative refraction power, a third lens body with refraction power, a fourth lens body with positive refraction power and a fifth lens body with negative refraction power sequentially from the object side to the image side, wherein the object side face of the first lens body is a convex surface; the image side face of the second lens body is a concave surface; the object side face of the fourth lens body is a concave surface, and the image side face of the fourth lens body is a convex surface; the object side face of the fifth lens body is a concave surface and is provided with a point of inflexion, and the image side face of the fifth lens body is a convex surface. The lens meets the relational expressions of -1.5<f4 / f5<-0.5, -0.65<=(R9-R10) / (R9+R10)<0 and 0.5<R1 / R4<1.5, wherein f4 and f5 are the focal lengths of the fourth lens body and the fifth lens body respectively, R9 and R10 are the radius of curvature of the object side face and the radius of curvature of the image side face of the fifth lens body respectively, R1 is the radius of curvature of the object side face of the first lens body, and R4 is the radius of curvature of the image side face of the second lens body.

Description

technical field [0001] The invention relates to a high-pixel camera lens, in particular to a high-pixel thin camera lens composed of five lenses and applied to miniaturized electronic products. Background technique [0002] In recent years, with the development of science and technology, portable electronic products have gradually emerged, especially portable electronic products with camera functions have been more favored by people. The photosensitive element of the general optical system is nothing more than a photosensitive coupling device (CCD) or complementary There are two kinds of permanent oxide metal semiconductor elements (COMS). With the improvement of semiconductor process technology, the pixel size of the photosensitive element is reduced, and the optical system tends to have higher pixels. The pixel size of the chip is getting smaller and smaller. Imaging quality requirements are getting higher and higher. [0003] At present, the mainstream camera lens is gen...

AI Technical Summary

Problems solved by technology

Although this system effectively improves the imaging quality while maintaining the characteristics of miniaturization, the lens cannot effectively suppress ghost images and correct distortion while ensuring a large field of view, and the incident angle of light on the imaging surface (ie, CRA ) have not been effectively controlled

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