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Optical imaging lens group

An optical imaging and lens group technology, applied in optics, optical components, instruments, etc., can solve the problems of inability to correct off-axis aberrations, limit the improvement of image quality, etc., and achieve the effect of small distortion, high resolution, and large space

Active Publication Date: 2021-10-15
ZHEJIANG SUNNY OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such a mirror has a high degree of freedom in the meridian plane, and can correct axial aberrations, but cannot correct off-axis aberrations, thus limiting the further improvement of image quality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] Refer to the following Figure 1 to Figure 2 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.

[0082] Such as figure 1 As shown, the optical imaging lens group includes in sequence from the object side to the image side: the first lens E1, the second lens E2, the diaphragm STO, the third lens E3, the fourth lens E4, the fifth lens E5, and the sixth lens E6 , the seventh lens E7, the filter E8 and the imaging surface S17.

[0083] The first lens E1 has negative refractive power, its object side S1 is convex, and its image side S2 is convex. 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 convex, and its image side S6 is convex. The fourth lens E4 has...

Embodiment 2

[0104] Refer to the following Figure 3 to Figure 4 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.

[0105] Such as image 3 As shown, the optical imaging lens group includes in sequence from the object side to the image side: the first lens E1, the second lens E2, the diaphragm STO, the third lens E3, the fourth lens E4, the fifth lens E5, and the sixth lens E6 , the seventh lens E7, the filter E8 and the imaging surface S17.

[0106] The first lens E1 has negative refractive power, its object side S1 is convex, and its image side S2 is convex. The second lens E2 has positive refractive power, its object side S3 is convex, and its image side S4 is concav...

Embodiment 3

[0124] Refer to the following Figure 5 to Figure 6 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.

[0125] Such as Figure 5 As shown, the optical imaging lens group includes in sequence from the object side to the image side: the first lens E1, the second lens E2, the diaphragm STO, the third lens E3, the fourth lens E4, the fifth lens E5, and the sixth lens E6 , the seventh lens E7, the filter E8 and the imaging surface S17.

[0126] The first lens E1 has negative refractive power, its object side S1 is convex, and its image side S2 is convex. 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 convex, and its image side S6 is convex. The fourth lens E4 h...

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Abstract

The present application discloses an optical imaging lens group, which sequentially includes: a first lens with refractive power, a second lens, a third lens, a fourth lens, and a fifth lens from the object side to the image side along the optical axis . The sixth lens and the seventh lens, wherein: at least one mirror surface from the object side of the first lens to the image side of the seventh lens is a non-rotationally symmetrical aspheric surface; the optical imaging lens group is perpendicular to the The plane of the optical axis has a first direction and a second direction perpendicular to each other, a part of the optical parameters in the first direction is different from the part of the optical parameters in the second direction; and in the first direction In terms of direction, the half ImgH of the diagonal length of the effective pixel area on the imaging surface of the optical imaging lens group satisfies: ImgH>5mm.

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] The imaging quality and image size of the lens of portable electronic products such as mobile phones are important indicators to measure the performance of portable electronic products such as mobile phones. [0003] The rear cameras of many current mobile phones are usually configured with three cameras: main camera lens, wide-angle lens and telephoto lens. With the combined use of these three cameras, combined with post-processing image processing algorithms, the ultra-clear shooting function can be realized. However, due to the large field of view of the wide-angle lens, the distortion of the outer field of view of the general wide-angle lens is usually large, and the marginal field of view usually reaches about 25%, which makes it difficult for the later algorithm correction. In fact, not only wide-angle ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/00G02B13/18
CPCG02B13/0045G02B13/18
Inventor 周楹刘子维陈念徐武超张凯元戴付建赵烈烽
Owner ZHEJIANG SUNNY OPTICAL CO LTD
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