Imaging optics lens group

Abstract

The invention discloses an imaging optics lens group which sequentially comprises a first lens with positive refractive power, a second lens with negative refractive power, a third lens with positive refractive power, a fourth lens with negative refractive power and a fifth lens from an object side to an image side, wherein the object side surface of the first lens is a convex surface; the objectside surface of the second lens is a convex surface, and the image side surface of the second lens is a concave surface; the object side surface of the third lens is a concave surface, and the image side surface of the third lens is a convex surface; the image side surface of the fourth lens is a concave surface, and the object side surface and the image side surface of the fourth lens are both aspheric surfaces; and the image side surface of the fifth lens is a concave surface, and the object side surface and the image side surface of the fifth lens are both aspheric surfaces. The imaging optics lens group is additionally provided with an aperture and an electronic photosensing unit for imaging a shot object, wherein the aperture is arranged between the shot object and the second lens, and the electronic photosensing unit is arranged at an imaging surface. Through the arrangement way of the lens group in the invention, the volume of the lens group can be effectively reduced, the sensitiveness of an optics system can be lowered, and higher resolution can be obtained.

Description

technical field [0001] The invention relates to an imaging optical lens set, in particular to a miniaturized imaging optical lens set applied to portable electronic products. Background technique [0002] In recent years, with the rise of portable electronic products with photographic functions, the demand for miniaturized photographic lenses has increased day by day. The photosensitive element of a general photographic lens is nothing more than a photosensitive coupling device (Charge Coupled Device, CCD) or a complementary metal-oxide semiconductor device (Complementary Metal-Oxide Semiconductor Sensor, CMOS Sensor). Moreover, due to improvements in manufacturing technology, the pixel size of the photosensitive element is reduced, and the miniaturized photographic lens is gradually developing into the high-pixel field. Therefore, the requirements for imaging quality are also increasing. [0003] Traditional miniaturized photographic lenses mounted on portable electronic p...

AI Technical Summary

Problems solved by technology

[0004] However, due to the prevalence of high-standard mobile devices such as smart phones (Smart Phone) and PDA (Personal Digital Assistant), the miniaturized photographic lens has rapidly increased in terms of pixels and image quality, and the existing four-element lens group will not be able to To satisfy higher-end photographic lens modules, coupled with the continuous development of high-performance and thinner electronic products, miniaturized photographic lenses with high pixels and high performance have become an important target for the development of high-end electronic products.

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