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Optical imaging lens group

An optical imaging, lens group technology, applied in optics, optical components, instruments, etc., can solve problems such as color distortion of photo images

Pending Publication Date: 2021-02-12
ZHEJIANG SUNNY OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this technology can effectively suppress noise, the color distortion of the synthesized photos is obvious, especially when shooting with a wide-angle lens, the color distortion is more prominent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0094] Refer to the following Figure 1 to Figure 2C An optical imaging lens group according to Embodiment 1 of the present application is described. figure 1 A schematic structural diagram of an optical imaging lens group according to Embodiment 1 of the present application is shown.

[0095] Such as figure 1 As shown, the optical imaging lens group includes first lens E1, second lens E2, third lens E3, diaphragm STO, fourth lens E4, fifth lens E5, sixth lens E6, The seventh lens E7, the eighth lens E8, the filter E9 and the imaging surface S19.

[0096] The first lens E1 has negative refractive power, its object side S1 is convex, and its image side S2 is concave. The second lens E2 has positive refractive power, its object side S3 is convex, and its image side S4 is concave. The third lens E3 has positive refractive power, its object side S5 is concave, and its image side S6 is convex. The fourth lens E4 has positive refractive power, its object side S7 is convex, and ...

Embodiment 2

[0111] Refer to the following Figure 3 to Figure 4C An optical imaging lens group according to Embodiment 2 of the present application is described. In this embodiment and the following embodiments, for the sake of brevity, descriptions similar to those in Embodiment 1 will be omitted. image 3 A schematic structural diagram of an optical imaging lens group according to Embodiment 2 of the present application is shown.

[0112] Such as image 3 As shown, the optical imaging lens group includes first lens E1, second lens E2, third lens E3, diaphragm STO, fourth lens E4, fifth lens E5, sixth lens E6, The seventh lens E7, the eighth lens E8, the filter E9 and the imaging surface S19.

[0113] The first lens E1 has negative refractive power, its object side S1 is convex, and its image side S2 is concave. The second lens E2 has positive refractive power, its object side S3 is convex, and its image side S4 is concave. The third lens E3 has positive refractive power, its object...

Embodiment 3

[0126] Refer to the following Figure 5 to Figure 6C An optical imaging lens group according to Embodiment 3 of the present application is described. Figure 5 A schematic structural diagram of an optical imaging lens group according to Embodiment 3 of the present application is shown.

[0127] Such as Figure 5 As shown, the optical imaging lens group includes first lens E1, second lens E2, third lens E3, diaphragm STO, fourth lens E4, fifth lens E5, sixth lens E6, The seventh lens E7, the eighth lens E8, the filter E9 and the imaging surface S19.

[0128] The first lens E1 has negative refractive power, its object side S1 is convex, and its image side S2 is concave. The second lens E2 has negative refractive power, its object side S3 is convex, and its image side S4 is concave. The third lens E3 has positive refractive power, its object side S5 is concave, and its image side S6 is convex. The fourth lens E4 has positive refractive power, its object side S7 is convex, an...

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Abstract

The invention discloses an optical imaging lens group, which sequentially comprises,from an object side to an image side along an optical axis, a first lens having negative focal power; a second lenshaving focal power; a third lens having focal power, wherein the image side surface of the third lens is a convex surface; a fourth lens having positive focal power; a fifth lens having focal power; asixth lens having focal power; a seventh lens having focal power, wherein the image side surface of the seventh lens is a convex surface; and an eighth lens having negative focal power. The effectivefocal length f4 of the fourth lens and the total effective focal length f of the optical imaging lens group meet the condition that f4 / f is larger than 2 and smaller than 3.

Description

technical field [0001] The present application relates to the field of optical elements, in particular to an optical imaging lens group. Background technique [0002] With the development of optical technology, the market has put forward higher requirements for the imaging quality of optical imaging lens groups used in electronic products such as smartphones. At the same time, the imaging quality of the optical imaging lens group is getting higher and higher. Especially, in a well-lit environment, the imaging quality of the mobile phone lens is approaching reality. However, due to the limitation of lens size, its imaging quality in low-light environment is not very ideal. [0003] At present, in order to reduce the noise generated by the lens when shooting in low light, most lens designers usually take multiple photos with different exposure values ​​at the same time and synthesize a photo with accurate exposure of the entire frame through an algorithm. Although this techn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/06G02B13/18
CPCG02B13/0045G02B13/06G02B13/18
Inventor 闻人建科孔旭乐戴付建赵烈烽
Owner ZHEJIANG SUNNY OPTICAL CO LTD
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