Camera Optical Lens

Abstract

The invention relates to the field of optical lenses, and discloses a camera optical lens, which comprises seven lenses in total, and the seven lenses are sequentially arranged from the object side to the image side: the first lens with positive refractive power, the first lens with negative refractive power The second lens, the third lens with positive refractive power, the fourth lens with negative refractive power, the fifth lens with refractive power, the sixth lens with positive refractive power, and the seventh lens with negative refractive power; imaging optics The focal length of the lens is f, the focal length of the third lens is f3, the Abbe number of the first lens is v1, the Abbe number of the second lens is v2, the curvature radius of the object side of the fourth lens is R7, and the image side of the fourth lens is The radius of curvature of the first lens is R8, the on-axis thickness of the first lens is d1, and the on-axis distance from the image side of the first lens to the object side of the second lens is d2, satisfying the relationship: 2.90≤v1 / v2≤4.50; 4.00≤ f3 / f≤10.00; 1.50≤d1 / d2≤4.00; 3.00≤R7 / R8. The imaging optical lens provided by the invention has good optical performance and at the same time satisfies the design requirements of large aperture, wide angle and ultrathinness.

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 -Oxide Semiconductor 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 Miniaturized camera lenses with good imaging quality have become the ma...

AI Technical Summary

Problems solved by technology

Moreover, with the development of technology and the increase in the diversified needs of users, the pixel area of ​​the photosensitive device is continuously shrinking, and the system's requirements for imaging quality are continuously improving. Five-piece, six-piece, and seven-piece lens structures It gradually appears in lens design. Although the common seven-element lens has good optical performance, its focal power, lens spacing and lens shape settings still have certain irrationality, resulting in a lens structure with good optical performance. At the same time, it cannot meet the design requirements of large aperture, ultra-thin, wide-angle

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