Imaging optical lens

Abstract

The invention relates to the field of optical lens and discloses an imaging optical lens. The imaging optical lens successively comprises a first lens with negative refractive power, a second lens with positive refractive power, a third lens with positive refractive power, a fourth lens with negative refractive power, a five lens with positive refractive power and a sixth lens with negative refractive power from an object side to an image side, wherein the focal length of the first lens is f1; the overall focal length of the imaging optical lens is f; the on-axis thickness of the first lens isd1; the on-axis thickness of the second lens is d3; the focal length of the sixth lens is f6; f1, f, d1, d3 and f6 meet the following relation expressions: a ratio of f1 to f is greater than or equalto -3.00 and is less than or equal to -1.20, d1 / d3 is greater than or equal to 1.00 and is less than or equal to 2.00, and f6 / f is greater than or equal to -10.00 and is less than or equal to -3.00.The imaging optical lens has good optical performance; meanwhile, the large-aperture, wide-angle and ultrathin design requirements are also met.

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, they have good Miniaturized camera lenses with image quality have become the mainstrea...

AI Technical Summary

Problems solved by technology

However, with the development of technology and the increase of diversified needs of users, as the pixel area of ​​the photosensitive device continues to shrink, and the system’s requirements for imaging quality continue to increase, the six-element lens structure gradually appears in the lens design. Common Although the six-piece lens already has good optical performance, its focal power, lens spacing and lens shape settings still have certain irrationality, resulting in a lens structure that cannot meet the requirements of large aperture, large aperture, and lens shape while having good optical performance. Ultra-thin, wide-angle design requirements

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