Wide-angle camera lens

Abstract

The invention provides a wide-angle camera lens which has easy processing, simple structure, stable focusing characteristic and thermal compensation characteristic, effectively controls stray light and ghosting, is suitable for the field of camera systems, and improves the comprehensive performance of the camera lens. The wide-angle camera lens sequentially comprises a first lens, a second lens, athird lens, a fourth lens, a fifth lens and a sixth lens from an object side surface to an image side surface along an optical axis, and is characterized in that the first lens has negative focal power, the object side surface of the first lens is a convex surface, and the image side surface of the first lens is a concave surface; the second lens has negative focal power, the object side surfaceof the second lens is a convex surface, and the image side surface of the second lens is a concave surface; the third lens has positive focal power, the object side surface of the third lens is a convex surface, and the image side surface of the third lens is a convex surface; the fourth lens has positive focal power, the object side surface of the fourth lens is a convex surface, and the image side surface of the fourth lens is a convex surface; the fifth lens has negative focal power, the object side surface of the fifth lens is a concave surface, and the image side surface of the fifth lensis a concave surface; and the sixth lens has positive focal power, the object side surface of the sixth lens is a convex surface, and the image side surface of the sixth lens is a convex surface.

Description

technical field [0001] The invention relates to the technical field of lens structures, in particular to a wide-angle lens. Background technique [0002] The camera lens is mainly an ordinary wide-angle lens, which generally adopts an all-glass structure, and its distortion is too large, or only the first glass lens is used, and the rest are all made of plastic materials, and its temperature compensation performance is not good, which cannot meet the high-end automotive market applications. There are many defects in the existing surround view lens, such as insufficient field of view, excessive distortion, high production cost, poor imaging quality, poor temperature compensation characteristics, complex structure, long optical length and a series of problems. Therefore, there is an urgent need for a wide-angle lens with stable performance and short total optical length. [0003] The present invention adopts fewer lenses (6 pieces), realizes ultra-wide angle, full field of vi...

AI Technical Summary

Problems solved by technology

[0002] The camera lens is mainly an ordinary wide-angle lens, which generally adopts an all-glass structure, and its distortion is too large, or only the first glass lens is used, and the rest are all made of plastic materials, and its temperature compensation performance is not good, which cannot meet the high-end automotive market applications.

There are many defects in the existing surround view lens, such as insufficient field of view, excessive distortion, high production cost, poor imaging quality, poor temperature compensation characteristics, complex structure, long optical length, etc.

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