Camera lens group, image capture device and electronic device

Abstract

The invention provides a camera lens group, an image capture device and an electronic device. The camera lens group comprises a first lens, a second lens, a third lens, a fourth lens and a fifth lens in sequence from an object side to an image side. The first lens has positive refractive power, and the object-side surface is convex near the optical axis; the second lens has negative refractive power; the third lens has refractive power; the fourth lens has refractive power, and both the object-side surface and the image-side surface are aspheric surfaces; and the fifth lens has refractive power, the object-side surface is convex near the optical axis, both the object-side surface and the image-side surface are aspheric surfaces, and at least one surface of the object-side surface and the image-side surface is provided with at least one point of inflection. The camera lens group further comprises an aperture, and there is no lens with refractive power between the aperture and the first lens. Under the structural configuration, the beam convergence ability is enhanced, the overall length of the system is controlled effectively, and the configuration of the first lens and the second lens is adjusted to achieve higher resolution in the local scope. The camera lens group, the image capture device and the electronic device of the invention have the beneficial effects of small size and high imaging quality.

Description

technical field [0001] The invention relates to a photographic lens group and an image capturing device, in particular to a photographic lens group and an image capturing device applicable to electronic devices. Background technique [0002] With the gradual thinning of personal electronic products, the internal components of electronic products are required to have a smaller size. Under the market trend, the size of the photographic lens set must be miniaturized. In addition to the requirement of miniaturization, because of the advancement of semiconductor manufacturing process technology, the pixel area of ​​the photosensitive element is reduced, and the photographic lens is gradually developing towards the field of high pixel. At the same time, the rise of electronic devices such as smart phones and tablet computers has also increased the demand for high-quality miniature camera lens sets. [0003] The traditional telephoto optical system mostly adopts a multi-chip stru...

AI Technical Summary

Problems solved by technology

[0003] The traditional telephoto optical system mostly adopts a multi-chip structure and is equipped with a spherical glass lens. This configuration not only makes the lens too bulky to carry, but also its refractive power design easily leads to poor beam convergence, aberration and Chromatic aberration etc.

In addition, the poor configuration of the lens pitch and lens thickness will easily lead to insufficient space for the light beam to travel, and aberrations and higher-order aberrations will occur due to insufficient space

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