Optical imaging lens

Abstract

The invention discloses an optical imaging lens. The optical imaging lens comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens, wherein the first lens, the second lens, the third lens, the fourth lens, the fifth lens and the sixth lens are sequentially arranged from an object side to an image side. The above six lenses satisfy the following conditional expression: TTL / AAG < = 4.1; 1.2 < = (T1 + T6) / (T2 + T3 + T4). According to the technical scheme of the invention, through controlling the arrangement of the concavo-convex surfaces of all the above lenses and controlling related parameters according to at least two conditions, the good optical performance is maintained and the effective focal length of the system is increased. Meanwhile, the field angle of the lens is reduced and the length of the lens is shortened.

Description

technical field [0001] The present invention is related to an optical imaging lens, and especially an optical imaging lens using a six-piece lens. Background technique [0002] The specifications of consumer electronic products are changing with each passing day, and the pace of pursuit of lightness, thinness and compactness has not slowed down, and the demand for telephoto features has even begun to be added. Therefore, the specifications of key components of electronic products such as optical lenses must continue to improve in order to meet the needs of consumer electronics. needs of the reader. The most important characteristics of optical lenses are nothing more than image quality and volume. Among them, in terms of imaging quality, with the advancement of image sensing technology, consumers' requirements for imaging quality will also increase. Therefore, in the field of optical lens design, in addition to pursuing thinner lenses, lens imaging must also be considered. ...

AI Technical Summary

Problems solved by technology

In terms of a six-element lens structure, in previous inventions, the distance from the object side of the first lens to the imaging surface on the optical axis is large, which is not conducive to the thinning of mobile phones and digital cameras

[0003] However, optical lens design does not simply reduce the proportion of a lens with good imaging quality to produce an optical lens with both image quality and miniaturization. The design process not only involves material characteristics, but also production and assembly yields. practical problems

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