Optical camera lens group, image pickup device and electronic device

Abstract

The invention discloses an optical camera lens group, an image pickup device and an electronic device. The optical camera lens group comprises a first lens, a second lens, a third lens, a fourth lens and a fifth lens sequentially from an object side to an image side, wherein the first lens has positive refractive power, the object side surface, near the optical axis, is a convex surface, and the image side surface, near the optical axis, is a concave surface; the second lens has negative refractive power, and the image side surface, near the optical axis, is a concave surface; the object side surface and the image side surface of the third lens are both aspheric surfaces; the fourth lens has negative refractive power, the image side surface, near the optical axis, is a concave surface, and the object side surface and the image side surface are both aspheric surfaces; the image side surface, near the optical axis, of the fifth lens is a convex surface, and the object side surface and the image side surface are both aspheric surfaces. When specific conditions are met, the optical camera lens group can provide a telescoping function. The invention also discloses an image pickup device provided with the above optical camera lens group and an electronic device.

Description

technical field [0001] The present invention relates to an optical camera lens group and an image pickup device, and in particular to a miniaturized optical camera lens group and an image pickup device applied to an electronic device. Background technique [0002] In recent years, with the rise of electronic products with photographic functions, the demand for optical systems has increased day by day. The photosensitive element of the general optical system is nothing more than two types of photosensitive coupling device (Charge Coupled Device, CCD) or complementary metal oxide semiconductor device (Complementary Metal-Oxide Semiconductor Sensor, CMOS Sensor), and with the improvement of semiconductor process technology, making The pixel size of the photosensitive element is shrinking, and the optical system is gradually developing into the high-pixel field, so the requirements for image quality are also increasing. [0003] At present, most of the lenses equipped with port...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the lenses equipped with portable electronic products on the market pursue the effect of close-object distance and wide-angle shooting, but the optical design of this lens cannot meet the needs of shooting subtle images in the distance.

The traditional telephoto optical system mostly adopts a multi-piece structure and is equipped with a spherical glass lens. This configuration not only makes the lens too bulky to carry, but also makes the product too expensive to discourage consumers. The well-known optical system can no longer meet the general consumers' photography needs in pursuit of convenience and versatility

Images