Camera lens group, image capture device and electronic device

A technology of photographic lenses and lenses, applied in optical elements, optics, instruments, etc., can solve the problems of not easy to carry, insufficient space for beam travel, and large lens size.

Active Publication Date: 2016-10-05
LARGAN PRECISION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 convergenc

Method used

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  • Camera lens group, image capture device and electronic device
  • Camera lens group, image capture device and electronic device
  • Camera lens group, image capture device and electronic device

Examples

Experimental program
Comparison scheme
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no. 1 example 》

[0135] Please refer to the first embodiment of the present invention Figure 1A , for the aberration curve of the first embodiment, please refer to Figure 1B . The imaging device of the first embodiment includes a photographic lens group (not otherwise labeled) and an electronic photosensitive element 180, and the photographic lens group is mainly composed of five first lenses 110, second lenses 120, and third lenses with refractive power. 130, the fourth lens 140 and the fifth lens 150, which sequentially include from the object side to the image side:

[0136] A first lens 110 with positive refractive power is made of plastic, its object side 111 is convex at the near optical axis, its image side 112 is convex at the near optical axis, and its object side 111 and image side 112 are both is aspheric;

[0137] A second lens 120 with negative refractive power is made of plastic, its object side 121 is concave at the near optical axis, its image side 122 is concave at the nea...

no. 2 example 》

[0170] Please refer to the second embodiment of the present invention Figure 2A , for the aberration curve of the second embodiment, please refer to Figure 2B . The imaging device of the second embodiment includes a photographic lens group (not otherwise labeled) and an electronic photosensitive element 280. The photographic lens group is mainly composed of five first lenses 210, second lenses 220, and third lenses with refractive power. 230, the fourth lens 240 and the fifth lens 250, which sequentially include from the object side to the image side:

[0171] A first lens 210 with positive refractive power is made of plastic, its object side 211 is convex at the near optical axis, its image side 212 is concave at the near optical axis, and its object side 211 and image side 212 are both is aspheric;

[0172] A second lens 220 with negative refractive power is made of plastic, its object side 221 is convex at the near optical axis, its image side 222 is concave at the nea...

no. 3 example 》

[0184] Please refer to the third embodiment of the present invention Figure 3A , for the aberration curve of the third embodiment, please refer to Figure 3B . The imaging device of the third embodiment includes a photographic lens group (not otherwise labeled) and an electronic photosensitive element 380. The photographic lens group is mainly composed of five first lenses 310, second lenses 320, and third lenses with refractive power. 330, the fourth lens 340 and the fifth lens 350, which sequentially include from the object side to the image side:

[0185] A first lens 310 with positive refractive power is made of plastic, its object side 311 is convex at the near optical axis, its image side 312 is concave at the near optical axis, and its object side 311 and image side 312 are both is aspheric;

[0186] A second lens 320 with negative refractive power is made of plastic, its object side 321 is convex at the near optical axis, its image side 322 is concave at the near o...

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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...

Claims

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Application Information

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IPC IPC(8): G02B13/00G02B13/18
Inventor 谢东益黄歆璇
Owner LARGAN PRECISION
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