optical lens

Abstract

The present application discloses an optical lens, which sequentially includes from the object side to the image side along the optical axis: a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens, which is characterized in that , the first lens is a meniscus lens with negative power, and its object side is convex, and the image side is concave; the second lens is a meniscus lens with negative power, and its object side is convex, and the image side is concave The third lens is a meniscus lens with positive refractive power, and its object side is concave, and its image side is convex; the fourth lens has positive refractive power, and its object side is convex, and its image side is convex. The optical lens of the present application has the characteristics of low cost, high pixel, preferably, the pixel can reach more than 2M, and good temperature performance.

Description

technical field [0001] The present application relates to an optical lens, and more particularly, the present application relates to an optical lens including six lenses. Background technique [0002] At present, in the field of automotive wide-angle lenses, on the premise of ensuring low cost and high performance, more and more attention is paid to the imaging performance of the lens at different temperatures, hoping that the lens imaging can still maintain high-definition in different temperature ranges. [0003] The wide-angle lens in the prior art is generally composed of 5 to 8 glass lenses. This kind of wide-angle lens has the following disadvantages, such as heavy weight, high cost, and distortion in the field of view exceeding 90°, and subsequent distortion will become more serious. Some wide-angle lenses in the prior art can be made up of 4 glass lenses and 2 plastic lenses, and the price of this lens is relatively high, which cannot meet the low price and high perf...

AI Technical Summary

Problems solved by technology

[0003] The wide-angle lens in the prior art is generally composed of 5 to 8 glass lenses. This kind of wide-angle lens has the following disadvantages, such as heavy weight, high cost, and distortion exceeding 90° in the field of view, and subsequent distortion will become more serious

Some wide-angle lenses in the prior art can be made up of 4 pieces of glass lenses and 2 pieces of plastic lenses, and the price of this lens is relatively high, which cannot meet the low price and high performance requirements of consumers for lenses.

Some lenses in the prior art can also be composed of 2 glass lenses and 3 plastic lenses. Since the deformation of the plastic lenses is serious when subjected to high and low temperatures, the back focus shift of the 3 plastic lenses at high and low temperatures is difficult to offset by itself, so that As the ambient temperature changes, the image quality of the lens will be seriously reduced

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