Optical imaging lens and electronic equipment

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, a sixth lens, a seventh lens and an eighth lens, wherein the first lens has positive refractive power, an imaging side surface of the first lens is a convex surface at a near optical axis, the second lens has negative refractive power, the third lens has refractive power, the fourth lens has refractive power, an object side surface of the fourth lens is a convex surface at an optical axis, an imaging side surface of the fourth lens is a concave surface at a near optical axis, the fifth lens has refractive power, the sixth lens has refractive power, an object side surface of the sixth lens is a convex surface at a near optical axis, an imaging side surface of the sixth lens is a concave surface at a near optical axis and is provided at least one inflexion point, the seventh lens has refractive power, the eighth lens has refractive power, and an imaging side surface of the eighth lens is provided with at least one inflexion point. The optical imaging lens is relatively short in lens length, has large optical aperture and excellentvisual field angle, favorable imaging quality can be achieved, and the application requirement can be met. The invention also provides electronic equipment.

Description

technical field [0001] The invention relates to the technical field of optical systems, in particular to an optical imaging lens. The invention also relates to an electronic device. Background technique [0002] With the rapid development of electronic technology, mobile and portable electronic devices have been rapidly popularized, such as smart phones, tablet computers, driving recorders and sports cameras, etc., which has also promoted the prosperity of related technologies of camera modules applied to electronic devices develop. The camera modules of existing electronic equipment will be used to shoot distant scenes, and some will also be used to shoot people, close-ups, etc., which puts forward higher requirements on the imaging performance of imaging lenses such as resolution, aperture, and field of view. In addition, with the improvement of semiconductor manufacturing process technology, the pixel size of the photosensitive device has been reduced. Correspondingly, ...

AI Technical Summary

Problems solved by technology

[0003] Traditional light and thin optical imaging lenses mostly use a lens structure with a small number of elements, but the lens structure with a small number of elements has limitations in terms of refractive power distribution, aberration and astigmatism correction, and sensitivity distribution, which cannot further meet higher specifications. imaging requirements

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