Pick-up lens

Abstract

The invention provides a pick-up lens. The pick-up lens comprises a first lens set and a second lens set, wherein the first lens set and the second lens set are arranged in sequence from an object side to an image side; the first lens set comprises a first lens, a second lens and a third lens in sequence from the object side to the image side, the first lens has positive focal power and the object side surface of the first lens is a convex surface, and the second lens has negative focal power and the object side surface of the second lens is a convex surface; the second lens set comprises a fourth lens, a fifth lens and a sixth lens in sequence from the object side to the image side, the fifth lens has negative focal power and the image side surface of the fifth lens is a convex surface, and the sixth lens has negative focal power and the object side surface of the sixth lens is a concave surface. According to the pick-up lens, the six plastic aspherical lenses are adopted, and the defects in the prior art are overcome through distribution of different kinds of focal power. The pick-up lens has the advantages that the resolution is high, the imaging quality is high, the overall length of the pick-up lens is quite small, the pick-up lens is convenient to carry, and a novel solution is provided to meet current specification requirements and performance requirements.

Description

technical field [0001] The invention relates to an imaging optical system of a lens, in particular to a camera lens composed of six groups of lenses. Background technique [0002] In recent years, with the development of chip technology such as CCD or CMOS, the pixel size of the chip is getting smaller and smaller, and the imaging quality requirements of the matching optical system are also getting higher and higher. The size of the optical lens is getting smaller and smaller, making the camera lens to be miniaturized and the high-pixel field is developing rapidly. At present, the general high-pixel thin-type lens mainly adopts a five-piece lens structure, as shown in the U.S. Patent No. "US8369027". The quality requirements are further improved, and the known optical systems will not be able to meet the higher photography needs. Contents of the invention [0003] The invention provides a camera lens, which solves the disadvantages of high pixel and good imaging quality ...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a camera lens, which solves the disadvantages of high pixel and good imaging quality...

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