Camera Optical Lens

Abstract

The present invention provides a kind of photographing optical lens, comprises in order from object side to image side: first lens, second lens, third lens, fourth lens and fifth lens; Wherein, the object side of described fifth lens The radius of curvature is R9, the radius of curvature of the image side of the fifth lens is R10, the overall focal length of the imaging optical lens is f, the focal length of the second lens is f2, and the focal length of the fifth lens is f5, The focal length of the fourth lens is f4, the radius of curvature of the object side of the first lens is R1, the radius of curvature of the image side of the first lens is R2, and the radius of curvature of the object side of the third lens is R5, the radius of curvature of the image side of the third lens is R6, and satisfies the following relationship: 0.20≤(R9+R10) / (R9-R10)≤1.00; -3.20≤(f2+f5) / f≤- 2.00; 0.88≤f4 / f≤1.20; ‑2.50≤(R1+R2) / (R1‑R2)≤‑1.00; ‑1.90≤R5 / R6≤‑0.80. The camera optical lens not only has good optical performance, but also meets the design requirements of large aperture, wide angle and ultra-thin.

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 appearances. Therefore, they have good Miniaturized camera lenses with image quality have become the mainstre...

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 five-element lens structure gradually appears in the lens design. Common Although the five-element 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 needs of large aperture, large aperture, and lens shape while having good optical performance. Ultra-thin, wide-angle design requirements

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