Camera optics

Abstract

The invention discloses an imaging optical lens, which sequentially comprises: a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens from the object side to the image side; wherein, the imaging optical lens The focal length of the lens is f, the focal length of the first lens is f1, the focal length of the second lens is f2, the central radius of curvature of the object side of the fourth lens is R7, the central radius of curvature of the image side of the fourth lens is R8, and the fifth lens The central radius of curvature of the object side is R9, the central radius of curvature of the image side of the fifth lens is R10, the axial distance from the image side of the fourth lens to the object side of the fifth lens is d8, and the image side of the fifth lens is to The on-axis distance of the object side of the sixth lens is d10, and satisfies the following relationship: ‑4.00≤f1 / f≤‑2.20; 1.50≤f2 / f≤3.50; 3.00≤R7 / R8≤8.00; 1.50≤(R9+ R10) / (R9‑R10)≤8.00; 1.50≤d8 / d10≤5.00. The imaging optical lens provided by the invention not only has good optical performance, but also meets the design requirements of 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 equipment such as smart phones and digital cameras, as well as 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 is increasing, and the photosensitive devices of general photographic lenses are nothing more than Charge Coupled Device (CCD) or Complementary Metal Oxide Semiconductor Device (Complementary Metal Semiconductor). -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 have a trend of good functions and light, thin and short appearances. Therefore, with Miniaturized camera lenses with good imaging quality have become the mainstream in the curr...

AI Technical Summary

Problems solved by technology

However, with the development of technology and the increase of diversified needs of users, the pixel area of ​​the photosensitive device is continuously reduced, and the requirements of the system for imaging quality are continuously improved. Although the common six-piece lens already has better optical performance, but its focal power, lens spacing and lens shape settings are still unreasonable to a certain extent, resulting in a lens structure that cannot meet the wide-angle and ultra-thin design requirements while having good optical performance

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