Camera optical lens

Abstract

The invention discloses a camera optical lens. The camera optical lens comprises a first lens, a second lens, a third lens, a fourth lens and a fifth lens from the object side to the image side. The focal length of the camera optical lens is f. The focal length of the first lens is f1. The focal length of the third lens is f3. The focal length of the fourth lens is f4. The focal length of the fifth lens is f5. The radius of curvature of the object side of the fourth lens is R7. The radius of curvature of the image side of the fourth lens is R8. The on-axis thickness of the first lens is d1. The on-axis distance from the image side of the first lens to the object side of the second lens is d2. The on-axis thickness of the second lens is d3. The on-axis distance from the image side of the third lens to the object side of the fourth lens is d4. According to the camera optical lens, (f1+f3+f5) / f is between 8.50 and -6.50; (R7+R8) / (R7-R8) is between 0.00 and 1.00; d2 / d1 is between 1.20 and2.00; f4 / f is between 0.80 and 1.50; and d3 / d4 is between 3.20 and 5.00. The camera optical lens provided by the invention has good optical performances, and can meet the design requirements of largeaperture, wide angle and being 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 photosensitive coupling devices (Charge Coupled Deνice, 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 th...

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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