Camera Optical Lens

Abstract

The invention relates to the field of optical lenses, and discloses a photographic optical lens. The photographic optical lens comprises six lenses in total, and the six lenses are in sequence from the object side to the image side: a first lens with positive refractive power and a negative refractive power The second lens, the third lens with negative refractive power, the fourth lens with negative refractive power, the fifth lens with positive refractive power, and the sixth lens with negative refractive power; the focal length of the imaging optical lens is f, the second lens The focal length of the lens is f2, the radius of curvature of the center of the object side of the third lens is R5, the radius of curvature of the center of the image side of the third lens is R6, the radius of curvature of the center of the object side of the fifth lens is R9, and the radius of curvature of the center of the image side of the fifth lens is R10. The axial thickness of the three lenses is d5, the axial distance from the image side of the third lens to the object side of the fourth lens is d6, and the following relationship is satisfied: ‑2.50≤f2 / f≤‑1.20; 3.50≤(R5+R6) / ( R5‑R6)≤12.00; 4.00≤R10 / R9; 0.50≤d5 / d6≤1.20. The camera optical lens has the characteristics of ultra-thin, wide-angle and large aperture.

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 photosensitive coupling 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 ma...

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-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 ultra-thin requirements while having good optical performance. , wide-angle, large aperture design requirements

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