Optical lens and imaging equipment

Abstract

The invention discloses an optical lens and an imaging device. The optical lens comprises in sequence from the object side to the imaging surface along the optical axis: a first lens with optical power, the object side is concave or convex at the near optical axis, and The image side is convex; the stop; the second lens with positive power, its object side is concave or convex at the near optical axis, and its image side is convex; the third lens with negative power, its object side is Concave, its image side is convex; a fourth lens with positive power, its object side is convex at the near optical axis and has at least one inflection point, its image side is concave at the near optical axis and has at least one inflection curved point; among them, the four lenses are all plastic aspherical lenses. The optical lens can realize the miniaturization of the wide-angle lens and the balance of high pixels, and improve the user's camera experience.

Description

technical field [0001] The present invention relates to the technical field of imaging lenses, in particular to an optical lens and an imaging device. Background technique [0002] The optical lens is an important part of the optical imaging system, and it is one of the standard configurations of mobile phones, tablets, security monitoring equipment, driving recorders and other terminals. In recent years, with the continuous development of mobile information technology, the demand for terminals has continued to increase, and the number of lenses mounted on terminals has also increased. [0003] With the enthusiasm of users for thin and light terminals, and in pursuit of better imaging effects, optical lenses are required to meet both miniaturization and wide viewing angles. However, in the prior art, the optical lenses currently on the market cannot A better balance between miniaturization and wide viewing angle leads to the sacrifice of viewing angle when miniaturizing the...

AI Technical Summary

Problems solved by technology

[0003] With users' enthusiasm for thinner and lighter terminals, and in pursuit of better imaging effects, this requires optical lenses to meet both miniaturization and wide viewing angles. However, among the existing technologies, none of the optical lenses currently on the market can A good balance between miniaturization and wide viewing angle, resulting in the sacrifice of viewing angle when realizing the miniaturization of the lens, or the defect of large size when realizing the wide viewing angle of the lens

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