Pick-up optical lens

Abstract

The invention relates to the field of optical lens and discloses a pick-up optical lens. The pick-up optical lens includes a first lens, a second lens, a third lens, a fourth lens and a fifth lens arranged from an object side to an image side in sequence. Following relations are met: 1<f1 / f<1.55;1<f2 / f<1.55;1<(r3+r4) / (r3-r4)<4;1.75<n2<2.2;35<v2<45;0.05<d3 / ttl<0.1;0.05<d2 / ttl<0.1;0.005<d4 / ttl<0.01.The pick-up optical lens can acquire wide angles as well as high imaging performance.

Description

technical field [0001] The invention relates to the field of optical lenses, in particular to an imaging optical lens suitable for portable terminal devices such as smart phones and digital cameras, and imaging devices such as monitors and PC lenses. Background technique [0002] In recent years, with the rise of smart phones, the demand for miniaturized photographic lenses has been increasing, and the photosensitive devices of general photographic lenses are nothing more than photocoupled devices (Charge Coupled Device, CCD) or complementary metal oxide semiconductor devices (Complementary Metal -OxideSemiconductor Sensor, CMOS Sensor), and due to the improvement of semiconductor manufacturing process technology, the pixel size of photosensitive devices has been reduced, and today's electronic products are developing with good functions and thin, light and small appearance. Therefore, it has good Miniaturized imaging optical lenses with high imaging quality have become the ...

AI Technical Summary

Problems solved by technology

[0003] However, regardless of whether it is a three-piece, four-piece, five-piece, or six-piece imaging optical lens, in the prior art, it is impossible to obtain high imaging performance while taking into account the wide-angle of the imaging optical lens.

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