CN114815169A - Imaging lens - Google Patents
Imaging lens Download PDFInfo
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- CN114815169A CN114815169A CN202210613175.4A CN202210613175A CN114815169A CN 114815169 A CN114815169 A CN 114815169A CN 202210613175 A CN202210613175 A CN 202210613175A CN 114815169 A CN114815169 A CN 114815169A
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- 238000003384 imaging method Methods 0.000 title claims abstract description 89
- 230000003287 optical effect Effects 0.000 claims abstract description 31
- 238000005286 illumination Methods 0.000 abstract description 16
- 238000010586 diagram Methods 0.000 description 7
- 230000014509 gene expression Effects 0.000 description 2
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
- G02B13/005—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having spherical lenses only
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0055—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element
- G02B13/006—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element at least one element being a compound optical element, e.g. cemented elements
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/008—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras designed for infrared light
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/14—Optical objectives specially designed for the purposes specified below for use with infrared or ultraviolet radiation
Abstract
The invention relates to an imaging lens, which sequentially comprises the following components in the direction from an object side to an image side along an optical axis: a first lens (L1) having positive power, a second lens (L2) having positive power, a third lens (L3), a fourth lens (L4), a fifth lens (L5), a sixth lens (L6) having negative power, a seventh lens (L7), an eighth lens (L8), and a ninth lens (L9), the fourth lens (L4) having negative power. By the optical framework, the imaging lens has the performance characteristics of small volume, high resolution, large aperture with FNO number less than or equal to 1.24, low distortion with distortion absolute value less than 2 percent and high illumination with relative illumination greater than 60 percent.
Description
Technical Field
The invention relates to the technical field of optical systems, in particular to an imaging lens.
Background
The existing sighting lens on the market is mainly used for imaging in middle and short infrared bands, the image contrast is low, the resolution detail capability of the lens is poor, the sighting lens cannot be used in the daytime and at night, the problems of large size, low reliability and the like exist simultaneously, and the requirement of user demands and the requirement of the market for higher performance of the lens are difficult to meet.
Disclosure of Invention
In order to solve the problems in the prior art, the invention aims to provide an imaging lens, which can realize day and night confocal, simultaneously meet the performance characteristics of small volume, high resolution, large aperture with FNO number less than or equal to 1.24, low distortion with distortion absolute value less than 2 percent and high illumination with relative illumination greater than 60 percent, and can perform whole-group focusing along with the change of object distance.
To achieve the above object, the present invention provides an imaging lens, sequentially including, in a direction from an object side to an image side along an optical axis: the zoom lens comprises a first lens with positive focal power, a second lens with positive focal power, a third lens, a fourth lens, a fifth lens, a sixth lens with negative focal power, a seventh lens, an eighth lens and a ninth lens, wherein the fourth lens has negative focal power.
According to an aspect of the present invention, the third lens and the seventh lens each have a negative power;
the fifth lens, the eighth lens, and the ninth lens have positive optical power.
According to an aspect of the present invention, the imaging lens further includes a diaphragm located between the third lens and the fourth lens.
According to an aspect of the present invention, in a direction from an object side to an image side along an optical axis,
the first lens, the second lens, the third lens and the ninth lens are all convex-concave lenses;
the fourth lens is a convex-concave lens, a concave-concave lens or a plano-concave lens;
the fifth lens and the eighth lens are both convex lenses;
the sixth lens is a concave-convex lens;
the seventh lens is a concave-concave type lens.
According to an aspect of the present invention, the second lens and the third lens are cemented to constitute a first cemented lens group.
According to an aspect of the present invention, a focal length F1 of the first cemented lens group and a total focal length F of the imaging lens satisfy the relation: F1/F is more than or equal to-0.99 and less than or equal to-0.89.
According to an aspect of the present invention, the fourth lens, the fifth lens, and the sixth lens are cemented to constitute a second cemented lens group.
According to an aspect of the present invention, a focal length F2 of the second cemented lens group and a total focal length F of the imaging lens satisfy the relation: F2/F is more than or equal to-1.18 and less than or equal to-1.06.
According to an aspect of the present invention, the seventh lens and the eighth lens are cemented to constitute a third cemented lens group.
According to an aspect of the present invention, a focal length F3 of the third cemented lens group and a total focal length F of the imaging lens satisfy the relation: F3/F is more than or equal to 0.86 and less than or equal to 0.95.
According to an aspect of the present invention, a focal length F9 of the ninth lens and a total focal length F of the imaging lens satisfy the relation: F9/F is more than or equal to 1.05 and less than or equal to 1.10.
According to one aspect of the invention, the edge thickness D of the lens at the maximum optical effective diameter of the first lens and the central thickness D of the first lens on the optical axis satisfy the relation: D/D is more than or equal to 0.28 and less than or equal to 0.38.
According to an aspect of the present invention, the total optical length TTL of the imaging lens and the total focal length F of the imaging lens satisfy the following relation: TTL/F is more than or equal to 1.6 and less than or equal to 1.7.
According to one scheme of the invention, nine lenses are adopted, the focal powers of the first to ninth lenses are sequentially set to be positive, negative, positive and positive, and the different shapes of the lenses are reasonably matched, so that the imaging lens realizes miniaturization and small volume, and the whole group of focusing can be carried out along with the change of the object distance. The infrared band imaging performance is good, the wavelength of the infrared band can reach 940nm, the day and night confocal characteristic can be realized, and meanwhile, the imaging lens is ensured to realize the large aperture characteristic that FNO is less than or equal to 1.24. The imaging lens also has the performance characteristics of low distortion with the distortion absolute value less than 2% and high illumination with the relative illumination greater than 60%, and realizes high-resolution imaging quality with visible light and infrared light wave bands both reaching more than 400 ten thousand pixels.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 schematically shows a configuration diagram of an imaging lens according to embodiment 1 of the present invention;
fig. 2 is a diagram schematically showing the relative illuminance of an imaging lens according to embodiment 1 of the present invention;
fig. 3 is a schematic diagram showing a distortion of an imaging lens according to embodiment 1 of the present invention;
fig. 4 is a schematic structural view showing an imaging lens according to embodiment 2 of the present invention;
fig. 5 is a diagram schematically showing the relative illuminance of an imaging lens according to embodiment 2 of the present invention;
fig. 6 is a diagram schematically showing distortion of an imaging lens of embodiment 2 of the present invention;
fig. 7 is a schematic view showing a configuration of an imaging lens according to embodiment 3 of the present invention;
fig. 8 is a diagram schematically showing the relative illuminance of an imaging lens according to embodiment 3 of the present invention;
fig. 9 schematically shows a distortion diagram of an imaging lens according to embodiment 3 of the present invention.
Detailed Description
The embodiments described in this specification are to be considered in all respects as illustrative and not restrictive, and the appended drawings are intended to be part of the entire specification. In the drawings, the shape or thickness of the embodiments may be exaggerated and simplified for convenience. Further, the components of the structures in the drawings are described separately, and it should be noted that the components not shown or described in the drawings are well known to those skilled in the art.
Any reference to directions and orientations to the description of the embodiments herein is merely for convenience of description and should not be construed as limiting the scope of the invention in any way. The following description of the preferred embodiments refers to combinations of features which may be present independently or in combination, and the present invention is not particularly limited to the preferred embodiments. The scope of the invention is defined by the claims.
Referring to fig. 1, an embodiment of the present invention provides an imaging lens, sequentially including, along an optical axis from an object side to an image side: a first lens L1 having positive power, a second lens L2 having positive power, a third lens L3 having negative power, a fourth lens L4 having negative power, a fifth lens L5 having positive power, a sixth lens L6 having negative power, a seventh lens L7 having negative power, an eighth lens L8 having positive power, a ninth lens L9 having positive power, and a parallel plate CG. The imaging lens further includes a stop S between the third lens L3 and the fourth lens L4.
In the embodiment of the invention, the object-side surfaces of the first lens element L1, the second lens element L2, the third lens element L3 and the ninth lens element L9 are all convex surfaces, and the image-side surfaces thereof are all concave surfaces. The object-side surface of the fourth lens element L4 is convex, concave or planar, and the image-side surface of the fourth lens element L4 is concave whether it is convex or concave or planar. The object-side surface and the image-side surface of the fifth lens L5 and the eighth lens L8 are convex. The object-side surface of the sixth lens element L6 is concave, and the image-side surface thereof is convex. The object-side surface and the image-side surface of the seventh lens L7 are both concave.
Therefore, the focal powers of the nine lenses are sequentially set to be positive, negative, positive and positive, and the shapes of the lenses are reasonably matched, so that the imaging lens is miniaturized and small in size, and the whole group of focusing can be performed along with the change of the object distance. The infrared band imaging performance is good, the wavelength of the infrared band can reach 940nm, the day and night confocal characteristic can be realized, and meanwhile, the imaging lens is ensured to realize the large aperture characteristic that FNO is less than or equal to 1.24.
In the embodiment of the present invention, the second lens L2 and the third lens L3 are cemented to constitute the first cemented lens group. The fourth lens L4, the fifth lens L5, and the sixth lens L6 are cemented to constitute a second cemented lens group. The seventh lens L7 and the eighth lens L8 are cemented to constitute a third cemented lens group. Through the arrangement of three cemented lens groups, wherein the first cemented lens group and the third cemented lens group can be called as double cemented lenses, and the second cemented lens group can be called as triple cemented lenses, system aberration can be corrected, tolerance sensitivity between lenses in the optical system can be avoided, and the imaging lens can realize high imaging performance characteristics that the visible light and infrared light wave bands can reach more than 400 ten thousand pixels.
In the embodiment of the present invention, the focal length F1 of the first cemented lens group, the focal length F2 of the second cemented lens group, and the focal length F3 of the third cemented lens group, and the total focal length F of the imaging lens satisfy the following relations, respectively: F1/F is more than or equal to minus 0.99 and less than or equal to minus 0.89; F2/F is more than or equal to-1.18 and less than or equal to-1.06; and F3/F is more than or equal to 0.86 and less than or equal to 0.95. Under the relation, the absolute value of the distortion of the imaging lens is smaller than 3%, namely, the low distortion of the lens imaging is ensured, and meanwhile, the integral tolerance sensitivity of the imaging lens is reduced, so that the imaging lens has higher imaging quality and performance.
In the embodiment of the present invention, the focal length F9 of the ninth lens element L9 and the total focal length F of the imaging lens satisfy the following relation: F9/F is more than or equal to 1.05 and less than or equal to 1.10. Under the relational expression, the relative illumination of the imaging lens is more than 60%, namely the imaging lens is ensured to have high-illumination performance.
In the embodiment of the present invention, the edge thickness D of the lens at the maximum optical effective diameter of the first lens L1 and the central thickness D of the first lens L1 on the optical axis satisfy the following relation: D/D is more than or equal to 0.28 and less than or equal to 0.38. Under the relation, the possibility that the lens is fragile due to collision can be reduced.
In the embodiment of the invention, the total optical length TTL of the imaging lens and the total focal length F of the imaging lens satisfy the relation: TTL/F is more than or equal to 1.6 and less than or equal to 1.7, so that the imaging lens is smaller in size and miniaturized.
The imaging lens of the present invention is specifically described below in 3 embodiments with reference to the drawings and tables. In the following embodiments, the present invention will be described with the stop S as one surface, the image plane IMA as one surface, and the parallel plates CG as two surfaces.
The parameters of each example specifically satisfying the above conditional expressions are shown in table 1 below:
| conditional formula (II) | Example 1 | Example 2 | Example 3 |
| -0.99≤F1/F≤-0.89 | -0.910 | -0.970 | -0.913 |
| -1.18≤F2/F≤-1.06 | -1.090 | -1.131 | -1.156 |
| 0.86≤F3/F≤0.95 | 0.883 | 0.926 | 0.891 |
| 1.05≤F9/F≤1.10 | 1.060 | 1.077 | 1.085 |
| 0.28≤d/D≤0.38 | 0.307 | 0.360 | 0.356 |
| 1.6≤TTL/F≤1.7 | 1.623 | 1.623 | 1.623 |
TABLE 1
Example 1
Referring to fig. 1, the parameters of the imaging lens of the present embodiment are as follows:
FNO: 1.23; total optical length TTL: 49.999 mm; focal length F: 30.8 mm.
The fourth lens L4 is a concave-concave lens (concave on both the object-side surface and the image-side surface).
Table 2 lists relevant parameters of each lens in the imaging lens of the present embodiment, including: surface type, radius of curvature R value, thickness, refractive index of the material, and abbe number.
| Number of noodles | Surface type | R value | Thickness of | Refractive index | Abbe number |
| S1 | Spherical surface | 22.018 | 4.635 | 1.92 | 20.9 |
| S2 | Spherical surface | 80.115 | 0.1 | ||
| S3 | Spherical surface | 13.198 | 5.404 | 1.59 | 68.6 |
| S4 | Spherical surface | 117.316 | 1.85 | 1.81 | 22.7 |
| S5 | Spherical surface | 7.929 | 3.695 | ||
| S6(S) | Spherical surface | Infinity | 0.3 | ||
| S7 | Spherical surface | -507.631 | 0.8 | 1.63 | 35.7 |
| S8 | Spherical surface | 7.87 | 6.623 | 1.59 | 68.6 |
| S9 | Spherical surface | -7.87 | 0.8 | 1.81 | 22.7 |
| S10 | Spherical surface | -178.259 | 1.55 | ||
| S11 | Spherical surface | -13.573 | 0.8 | 1.53 | 48.9 |
| S12 | Spherical surface | 42.042 | 4.076 | 1.83 | 37.2 |
| S13 | Spherical surface | -13.33 | 2.51 | ||
| S14 | Spherical surface | 20.67 | 5.405 | 1.96 | 17.5 |
| S15 | Spherical surface | 51.645 | 5.451 | ||
| S16 | Spherical surface | Infinity | 1.5 | 1.52 | 64.2 |
| S17 | Spherical surface | Infinity | 4.5 | ||
| S18(IMA) | Spherical surface | Infinity | - | - | - |
TABLE 2
As shown in fig. 1 to 3 and tables 1 to 2, the imaging lens of the present embodiment has the following high performance characteristics: the optical lens meets the performance characteristics of small volume, high resolution, large aperture with FNO number of 1.23, low distortion with distortion absolute value less than 2 percent and high illumination with relative illumination greater than 60 percent, and can carry out whole-group focusing along with the change of object distance. The infrared band has good performance, the wavelength of the infrared band can reach 940nm, and day and night confocal can be realized. The imaging lens also realizes high-quality imaging with visible light and infrared light wave bands of more than 400 ten thousand pixels. Fig. 2 and 3 show the imaging performance of the imaging lens of the present embodiment with high illumination and low distortion, respectively.
Example 2
Referring to fig. 4, the parameters of the imaging lens of the present embodiment are as follows:
FNO: 1.23; total optical length TTL: 50.11 mm; focal length F: 30.88 mm.
The fourth lens element L4 is a plano-concave lens element (the object-side surface is flat and the image-side surface is concave).
Table 3 lists relevant parameters of each lens in the imaging lens of the present embodiment, including: surface type, radius of curvature R value, thickness, refractive index of the material, and abbe number.
| Number of noodles | Surface type | R value | Thickness of | Refractive index | Abbe number |
| S1 | Spherical surface | 22.16 | 4.57 | 1.92 | 20.9 |
| S2 | Spherical surface | 76.325 | 0.101 | ||
| S3 | Spherical surface | 13.053 | 5.35 | 1.59 | 68.6 |
| S4 | Spherical surface | 81.287 | 1.72 | 1.81 | 22.7 |
| S5 | Spherical surface | 8.055 | 3.913 | ||
| S6(S) | Spherical surface | Infinity | 0.3 | ||
| S7 | Spherical surface | Infinity | 0.8 | 1.63 | 35.7 |
| S8 | Spherical surface | 8.06 | 6.56 | 1.59 | 68.6 |
| S9 | Spherical surface | -8.06 | 0.8 | 1.81 | 22.7 |
| S10 | Spherical surface | -227.154 | 1.624 | ||
| S11 | Spherical surface | -13.197 | 0.8 | 1.53 | 48.9 |
| S12 | Spherical surface | 45.746 | 4.01 | 1.83 | 37.2 |
| S13 | Spherical surface | -13.384 | 1.784 | ||
| S14 | Spherical surface | 22.049 | 6.3 | 1.96 | 17.5 |
| S15 | Spherical surface | 59.607 | 5.378 | ||
| S16 | Spherical surface | Infinity | 1.5 | 1.52 | 64.2 |
| S17 | Spherical surface | Infinity | 4.600 | ||
| S18(IMA) | Spherical surface | Infinity | - | - | - |
TABLE 3
As shown in fig. 4 to 6 and tables 1 and 3, the imaging lens of the present embodiment has the following high performance characteristics: the optical lens meets the performance characteristics of small volume, high resolution, large aperture with FNO number of 1.23, low distortion with distortion absolute value less than 2 percent and high illumination with relative illumination greater than 60 percent, and can carry out whole-group focusing along with the change of object distance. The infrared band has good performance, the wavelength of the infrared band can reach 940nm, and day and night confocal can be realized. The imaging lens also realizes high-quality imaging with visible light and infrared light wave bands of more than 400 ten thousand pixels. Fig. 5 and 6 show the imaging performance of the imaging lens of the present embodiment with high illumination and low distortion, respectively.
Example 3
Referring to fig. 7, the parameters of the imaging lens of the present embodiment are as follows:
FNO: 1.23; total optical length TTL: 49.999 mm; focal length F: 30.8 mm.
The fourth lens L4 is a concave-convex lens (convex object-side surface and concave image-side surface).
Table 4 lists relevant parameters of each lens in the imaging lens of the present embodiment, including: surface type, radius of curvature R value, thickness, refractive index of the material, and abbe number.
TABLE 4
As shown in fig. 7 to 9 and tables 1 and 4, the imaging lens of the present embodiment has the following high performance characteristics: the optical lens meets the performance characteristics of small volume, high resolution, large aperture with FNO number of 1.23, low distortion with distortion absolute value less than 2 percent and high illumination with relative illumination greater than 60 percent, and can carry out whole-group focusing along with the change of object distance. The infrared band has good performance, the wavelength of the infrared band can reach 940nm, and day and night confocal can be realized. The imaging lens also realizes high-quality imaging with visible light and infrared light wave bands of more than 400 ten thousand pixels. Fig. 8 and 9 show the imaging performance of the imaging lens of the present embodiment with high illuminance and low distortion, respectively.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (13)
1. An imaging lens, comprising in order along an optical axis from an object side to an image side: -a first lens (L1) having a positive optical power, -a second lens (L2) having a positive optical power, -a third lens (L3), -a fourth lens (L4), -a fifth lens (L5), -a sixth lens (L6) having a negative optical power, -a seventh lens (L7), -an eighth lens (L8) and-a ninth lens (L9), characterized in that said fourth lens (L4) has a negative optical power.
2. Imaging lens according to claim 1, characterized in that the third lens (L3) and the seventh lens (L7) each have a negative optical power;
the fifth lens (L5), the eighth lens (L8), and the ninth lens (L9) each have positive optical power.
3. Imaging lens according to claim 1, characterized in that it further comprises a diaphragm (S) located between the third lens (L3) and the fourth lens (L4).
4. The imaging lens according to claim 1, wherein in a direction from an object side to an image side along an optical axis,
the first lens (L1), the second lens (L2), the third lens (L3), and the ninth lens (L9) are each convex-concave lenses;
the fourth lens (L4) is a concave-convex lens, a concave-concave lens or a plano-concave lens;
the fifth lens (L5) and the eighth lens (L8) are both convex-convex lenses;
the sixth lens (L6) is a concave-convex lens;
the seventh lens (L7) is a concave-concave type lens.
5. The imaging lens according to claim 1, characterized in that the second lens (L2) and the third lens (L3) are cemented to constitute a first cemented lens group.
6. The imaging lens according to claim 5, wherein a focal length F1 of the first cemented lens group and a total focal length F of the imaging lens satisfy the relation: F1/F is more than or equal to-0.99 and less than or equal to-0.89.
7. The imaging lens according to claim 1, characterized in that the fourth lens (L4), the fifth lens (L5), and the sixth lens (L6) are cemented to constitute a second cemented lens group.
8. The imaging lens according to claim 7, wherein a focal length F2 of the second cemented lens group and a total focal length F of the imaging lens satisfy the relation: F2/F is more than or equal to-1.18 and less than or equal to-1.06.
9. The imaging lens according to claim 1, characterized in that the seventh lens (L7) and the eighth lens (L8) are cemented to constitute a third cemented lens group.
10. The imaging lens according to claim 9, wherein a focal length F3 of the third cemented lens group and a total focal length F of the imaging lens satisfy the relation: F3/F is more than or equal to 0.86 and less than or equal to 0.95.
11. An imaging lens according to any one of claims 1 to 10, characterized in that the focal length F9 of the ninth lens (L9) and the total focal length F of the imaging lens satisfy the relation: F9/F is more than or equal to 1.05 and less than or equal to 1.10.
12. An imaging lens according to any one of claims 1 to 10, characterized in that the edge thickness D of the optic at the maximum optical effective diameter of the first lens (L1) and the central thickness D of the first lens (L1) on the optical axis satisfy the relation: D/D is more than or equal to 0.28 and less than or equal to 0.38.
13. An imaging lens according to any one of claims 1 to 10, wherein the total optical length TTL of the imaging lens and the total focal length F of the imaging lens satisfy the relation: TTL/F is more than or equal to 1.6 and less than or equal to 1.7.
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| JP2018155833A (en) * | 2017-03-16 | 2018-10-04 | 富士フイルム株式会社 | Imaging lens and imaging apparatus |
| CN209690600U (en) * | 2019-04-12 | 2019-11-26 | 奥普特视觉科技(苏州)有限公司 | A kind of low high-resolution linear array camera lens of distortion |
| CN212364690U (en) * | 2020-05-26 | 2021-01-15 | 浙江舜宇光学有限公司 | Optical imaging lens group |
| WO2022032920A1 (en) * | 2020-08-11 | 2022-02-17 | 苏州中科全象智能科技有限公司 | Projection lens |
| CN114167579A (en) * | 2021-11-08 | 2022-03-11 | 浙江大华技术股份有限公司 | Lens |
| CN217767011U (en) * | 2022-05-31 | 2022-11-08 | 舜宇光学(中山)有限公司 | Imaging lens |
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