Optical imaging lens

Abstract

The invention provides an optical imaging lens, which comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens sequentially from the object side to the image side and satisfies the following relational expressions: 1<=EFL/TTL and TTL<=18mm. By controlling the arrangement of the concave and convex surfaces of the lenses and using at least one relational expression to control relevant parameters, the length of the optical imaging lens is shortened under the condition of maintaining good optical performance. The optical imaging lens of the invention is used in optical imaging.

Description

technical field [0001] The present invention is related to an optical imaging lens, and especially relates to an optical imaging lens using six-lens lenses. 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 co...

AI Technical Summary

Problems solved by technology

In terms of a six-element lens structure, in previous inventions, the distance between the first lens object side and 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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