Optical lens group, camera module and terminal

Abstract

The invention discloses an optical lens group, a camera module and a terminal. The optical lens group comprises a first lens, a second lens, a third lens, a fourth lens and a fifth lens which are sequentially arranged from an object plane to an image plane along an optical axis, the first lens has positive meandering force. The image side surface of the second lens at the optical axis is a concave surface; the image side surface of the fourth lens at the optical axis is a convex surface; the image side surface of the fifth lens at the optical axis is a concave surface; the vector height of the object side surface of the first lens is SAGF11; the vector height of the image side surface of the first lens is SAGF12, the air interval between the first lens and the second lens at the maximum effective diameter is ET12, and SAGF11, SAGF12 and ET12 satisfy the following conditional expression: 0 < = (| SAGF11 | + | SAGF12 |) / ET12 < = 5. Through the arrangement, the injection molding yield ofthe lens can be improved, and the influence of quality fluctuation caused by the molding tolerance of the lens and the lens cone and the assembly process on the imaging performance is reduced, so that the production stability and the comprehensive yield are improved on the premise of ensuring the imaging quality, and the product profit is improved.

Description

technical field [0001] The present application relates to the technical field of optical imaging, in particular to an optical lens group, a camera module and a terminal. Background technique [0002] At present, based on the three-element and four-element camera lens, it can no longer meet the higher-level imaging quality requirements, and the lens of the camera lens has begun to develop in the direction of more lenses. Among them, the overall length of the comprehensive camera lens, manufacturing process , production cost and overall yield rate and other factors have an impact on the camera lens, the camera device will be better than choosing a camera lens composed of five optical elements. [0003] With the gradual increase in the number of optical lenses in the camera lens, it is difficult to grasp the size of the edge area of ​​each lens, and there will be a problem that the air gap between two adjacent lenses cannot be accurately controlled, which will lead to the poor ...

AI Technical Summary

Problems solved by technology

[0002] At present, based on the three-element and four-element camera lens, it can no longer meet the higher-level imaging quality requirements, and the lens of the camera lens has begun to develop in the direction of more lenses. Among them, the overall length of the comprehensive camera lens, manufacturing process , production cost and overall yield and other factors have an impact on the camera lens, the camera device will be better than the camera lens with five optical elements

[0003] With the gradual increase in the number of optical lenses in the camera lens, it is difficult to grasp the size of the edge area of ​​each lens, and there will be a problem that the air gap between two adjacent lenses cannot be accurately controlled, which will lead to the poor imaging quality of the entire camera lens. Not high, and it will increase the defect rate of the lens during the lens production process

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