Imaging lens group

Abstract

The invention discloses an imaging lens group which includes from an object side to an image side: a diaphragm; a first lens which has positive refraction power; a second lens which has negative refraction power; a third lens which has refraction power; a fourth lens which has positive refraction power; a fifth lens which has negative refraction power, wherein the second lens, the third lens and the fourth lens have a synthesized focal length of f234, and the fifth lens has a focal length of f5, and the following conditions are met: -1.8<f234 / f5<-1.0. The imaging lens group has five lenses, which helps to reduce the generation of spherical aberration and astigmatism by scientific configuration of a certain refraction power.

Description

technical field

[0001] The invention relates to an imaging lens set, in particular to a miniaturized five-piece imaging lens set applied to electronic products. Background technique

[0002] High-quality small photographic lenses are standard equipment for various mobile devices, and with the progress of semiconductor manufacturing, the pixel area on the electronic photosensitive component is getting smaller and smaller, which in turn requires more fine-grained resolution of the camera lens power, so that more detailed picture quality can be presented.

[0003] It is known that the 3 to 4-element small lenses mounted on mobile devices, such as mobile phones, tablet computers, and other wearable electronic devices, such as US 7,564,635 and US 7,920,340, cannot present more detailed image quality; while five-element A small lens of the type may have a better image quality, but at a large aperture, such as US 8,605,368, US8,649,113, and TW application numbers 102137030 and 102...

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