CN109358411B - Image pickup lens - Google Patents

Image pickup lens Download PDF

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Publication number
CN109358411B
CN109358411B CN201811539568.5A CN201811539568A CN109358411B CN 109358411 B CN109358411 B CN 109358411B CN 201811539568 A CN201811539568 A CN 201811539568A CN 109358411 B CN109358411 B CN 109358411B
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lens
imaging
object side
present
optical axis
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CN109358411A (en
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唐梦娜
吕赛锋
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Zhejiang Sunny Optics Co Ltd
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Zhejiang Sunny Optics Co Ltd
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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
    • G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
    • G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)

Abstract

The present invention relates to an imaging lens including: a first lens (1), a diaphragm (S), a second lens (2), a third lens (3), a fourth lens (4) and a fifth lens (5) which are sequentially arranged from an object side to an image side along an optical axis, wherein the first lens (1) and the fourth lens (4) are negative focal power lenses, the object side surface of the second lens (2) is a concave surface, and the third lens (3) and the fifth lens (5) are positive focal power lenses; the maximum effective radius DT21 of the object side surface of the second lens element (2) and the maximum effective radius DT31 of the object side surface of the third lens element (3) satisfy the following relationship: 0.45 < DT21/DT31 < 1.0. The imaging lens is a miniaturized lens, has small volume, has a super-large field angle and can obtain good imaging effect.

Description

Image pickup lens
Technical Field
The invention relates to the field of optical imaging, in particular to an imaging lens.
Background
With the continuous development of the smart phone shooting technology, the shooting module is developed from single shooting, double shooting to three shooting, even four shooting. The mounting of at least one ultra-wide angle lens has become a mainstream trend, and thus, market demands for this type of lens have also increased. However, the existing camera lens of the smart phone has a large angle of view, but has a large volume, so that the thickness or volume of the smart phone becomes large after the smart phone is installed, and the smart phone becomes heavy, so that the operation and the carrying are more inconvenient.
Disclosure of Invention
An object of the present invention is to solve the above-described problems and to provide a miniaturized imaging lens having an ultra-large field angle.
In order to achieve the above object, the present invention provides an imaging lens comprising: the lens comprises a first lens, a second lens, a third lens, a fourth lens and a fifth lens which are sequentially arranged from an object side to an image side along an optical axis, wherein the first lens and the fourth lens are negative focal power lenses, the object side of the second lens is a concave surface, and the third lens and the fifth lens are positive focal power lenses; the maximum effective radius DT21 of the second lens object-side surface and the maximum effective radius DT31 of the third lens object-side surface satisfy the following relation: 0.45 < DT21/DT31 < 1.0.
According to one aspect of the present invention, the relation between the maximum effective radius DT11 of the object side surface of the first lens and half the diagonal length ImgH of the effective pixel region on the imaging surface of the lens satisfies: DT11/ImgH 0.45 < 0.70.
According to one aspect of the present invention, an on-axis distance SAG41 between an intersection point of the fourth lens object side surface and an optical axis of the lens barrel and an effective radius vertex of the fourth lens object side surface satisfies a relationship between a center thickness CT4 of the fourth lens on the optical axis of the lens barrel: -4.0 < SAG41/CT4 < -2.0.
According to one aspect of the present invention, a sum Σat of air intervals on the optical axis of the lens barrel of any adjacent two lenses having optical powers of the first lens to the fifth lens satisfies a relationship between an on-axis distance TD from the object side surface of the first lens to the image side surface of the fifth lens: sigma AT/TD is 0.21 < 0.50.
According to one aspect of the present invention, the air interval T12 of the first lens and the second lens on the optical axis of the lens and the center thickness CT3 of the third lens on the optical axis of the lens satisfy the relation: T12/CT3 is more than 0.30 and less than 0.70.
According to one aspect of the present invention, the third lens satisfies the relationship between a center thickness CT3 on the optical axis of the lens and half a diagonal length ImgH of an effective pixel region on an imaging surface of the lens: CT3/ImgH < 0.40.
According to one aspect of the present invention, the relationship between half of the diagonal length ImgH of the effective pixel region on the imaging surface of the lens and the on-axis distance TTL from the object side surface of the first lens to the imaging surface of the lens is satisfied: imgH/TTL is more than 0.50 and less than 1.0.
According to one aspect of the present invention, the relationship between the radius of curvature R8 of the image side surface of the fourth lens and the effective focal length f of the lens is satisfied: -0.55 < R8/f < -0.10.
According to one aspect of the present invention, an on-axis distance SAG11 between an intersection point of the optical axes of the first lens object side surface and the lens barrel and an effective radius vertex of the first lens object side surface satisfies a relationship between a maximum effective radius DT11 of the first lens object side surface: 0.10 < SAG11/DT11 < 0.50.
According to one aspect of the invention, half of the maximum field angle of the lens, semi-FOV, is greater than 55 °.
In order to achieve the above object, the present invention provides an imaging lens comprising: the lens system comprises a first lens, a diaphragm, a second lens, a third lens, a fourth lens and a fifth lens which are sequentially arranged from an object side to an image side along an optical axis, wherein the first lens and the fourth lens are negative focal power lenses, the object side of the second lens is a concave surface, and the third lens and the fifth lens are positive focal power lenses; the on-axis distance SAG41 between the intersection point of the fourth lens object side surface and the optical axis of the lens and the vertex of the effective radius of the fourth lens object side surface and the center thickness CT4 of the fourth lens on the optical axis of the lens satisfy the relationship: -4.0 < SAG41/CT4 < -2.0.
According to one aspect of the present invention, the relation between the maximum effective radius DT11 of the object side surface of the first lens and half the diagonal length ImgH of the effective pixel region on the imaging surface of the lens satisfies: DT11/ImgH 0.45 < 0.70.
According to one aspect of the present invention, the relation between the maximum effective radius DT21 of the second lens object-side surface and the maximum effective radius DT31 of the third lens object-side surface is satisfied: 0.45 < DT21/DT31 < 1.0.
According to one aspect of the present invention, a sum Σat of air intervals on the optical axis of the lens barrel of any adjacent two lenses having optical powers of the first lens to the fifth lens satisfies a relationship between an on-axis distance TD from the object side surface of the first lens to the image side surface of the fifth lens: sigma AT/TD is 0.21 < 0.50.
According to one aspect of the present invention, the air interval T12 of the first lens and the second lens on the optical axis of the lens and the center thickness CT3 of the third lens on the optical axis of the lens satisfy the relation: T12/CT3 is more than 0.30 and less than 0.70.
According to one aspect of the present invention, the third lens satisfies the relationship between a center thickness CT3 on the optical axis of the lens and half a diagonal length ImgH of an effective pixel region on an imaging surface of the lens: CT3/ImgH < 0.40.
According to one aspect of the present invention, the relationship between half of the diagonal length ImgH of the effective pixel region on the imaging surface of the lens and the on-axis distance TTL from the object side surface of the first lens to the imaging surface of the lens is satisfied: imgH/TTL is more than 0.50 and less than 1.0.
According to one aspect of the present invention, the relationship between the radius of curvature R8 of the image side surface of the fourth lens and the effective focal length f of the lens is satisfied: -0.55 < R8/f < -0.10.
According to one aspect of the present invention, an on-axis distance SAG11 between an intersection point of the optical axes of the first lens object side surface and the lens barrel and an effective radius vertex of the first lens object side surface satisfies a relationship between a maximum effective radius DT11 of the first lens object side surface: 0.10 < SAG11/DT11 < 0.50.
According to one aspect of the invention, half of the maximum field angle of the lens, semi-FOV, is greater than 55 °.
According to one scheme of the invention, the effective radiuses of the second lens and the third lens are reasonably controlled, so that the front end size of the lens is reduced, and the whole camera lens group is lighter and thinner; on the other hand, the range of the incident light is reasonably limited, light with poor edge quality is removed, off-axis aberration is reduced, and the resolution of the camera lens group is effectively improved.
According to one scheme of the invention, the ratio of the first lens to the maximum half image height is reasonably controlled, the size of the front end of the camera lens can be effectively reduced, the front end of the camera lens group is miniaturized, especially various comprehensive screens popular in the market at present are further required to be miniaturized, and the camera lens group can be better adapted to market demands.
According to one scheme of the invention, the ratio of the sagittal height of the object side surface of the fourth lens to the central thickness is reasonably controlled, so that the processing, forming and assembling of the fourth lens are guaranteed, and good imaging quality is obtained. The unreasonable ratio can cause difficult adjustment of molding surface type, easy deformation after assembly is obvious, and further the imaging quality can not be ensured.
According to the scheme of the invention, the air gap in the camera lens is reasonably distributed, so that the processing and assembling characteristics can be ensured, and the problems of front and rear lens interference and the like in the assembling process caused by too small gap are avoided. Meanwhile, the method is favorable for slowing down light deflection, adjusting the field curvature of the camera lens group, reducing the sensitivity degree and further obtaining better imaging quality.
According to one aspect of the present invention, the air gap between the first lens and the second lens and the intermediate thickness of the third lens are reasonably adjusted, so that the risk of the first and third ghost images can be effectively reduced, and the size compression of the imaging lens can be facilitated.
According to the scheme of the invention, the central thickness of the third lens is reasonably controlled, so that miniaturization of the imaging lens is guaranteed, astigmatism of the imaging lens can be effectively reduced by matching the first lens with the second lens, and difficulties in processing, forming stress, coating and the like caused by the fact that the third lens is too thick are avoided.
According to one aspect of the present invention, the relationship between half of the diagonal length ImgH of the effective pixel region on the imaging surface of the lens and the on-axis distance TTL from the object side surface of the first lens to the imaging surface of the lens is satisfied: imgH/TTL is more than 0.50 and less than 1.0. By the arrangement, the total size of the camera lens group can be effectively reduced, and the ultra-thin characteristic and miniaturization of the camera lens are realized, so that the camera lens can be better suitable for more and more ultra-thin electronic products in the market.
According to one aspect of the present invention, by controlling the curvature radius of the image side surface of the fourth lens element and the total effective focal length ratio in a reasonable range, the imaging lens assembly can have a high aberration correction capability while keeping a compact size, and can obtain a better manufacturability.
According to the scheme of the invention, the ratio of the sagittal height of the object side surface of the first lens to the effective radius of the first lens is reasonably controlled, so that the size of the front end of the lens is effectively reduced, and the processing and forming of the first lens are ensured, so that a good imaging effect is obtained.
According to one scheme of the invention, the semi-FOV is controlled to be more than 55 degrees, and the camera lens group can cover a large range of scenes in actual shooting, so that wide air potential of the scenes can be effectively represented. Compared with a conventional lens with a small view field, the lens has the advantages that the foreground can be emphasized, the far-near contrast is highlighted, and the space depth sense of a shot picture is increased.
Drawings
Fig. 1 schematically shows a structural arrangement diagram of an imaging lens according to embodiment 1 of the present invention;
fig. 2 to 5 schematically show a chromatic aberration diagram, an astigmatic diagram, a distortion diagram, and a magnification chromatic aberration diagram, respectively, on an imaging lens axis according to embodiment 1 of the present invention;
fig. 6 schematically shows a structural arrangement diagram of an imaging lens according to embodiment 2 of the present invention;
Fig. 7 to 10 schematically show a chromatic aberration diagram, an astigmatic diagram, a distortion diagram, and a magnification chromatic aberration diagram, respectively, on an imaging lens axis according to embodiment 2 of the present invention;
Fig. 11 schematically shows a structural arrangement diagram of an imaging lens according to embodiment 3 of the present invention;
Fig. 12 to 15 schematically show a chromatic aberration diagram, an astigmatic diagram, a distortion diagram, and a magnification chromatic aberration diagram, respectively, on an imaging lens axis according to embodiment 3 of the present invention;
Fig. 16 schematically shows a structural arrangement diagram of an imaging lens according to embodiment 4 of the present invention;
Fig. 17 to 20 schematically show a chromatic aberration diagram, an astigmatic diagram, a distortion diagram, and a magnification chromatic aberration diagram, respectively, on an imaging lens axis according to embodiment 4 of the present invention;
fig. 21 schematically shows a structural arrangement diagram of an imaging lens according to embodiment 5 of the present invention;
Fig. 22 to 25 schematically show a chromatic aberration diagram, an astigmatic diagram, a distortion diagram, and a magnification chromatic aberration diagram, respectively, on an imaging lens axis according to embodiment 5 of the present invention;
fig. 26 schematically shows a structural arrangement diagram of an imaging lens according to embodiment 6 of the present invention;
Fig. 27 to 30 schematically show a chromatic aberration diagram, an astigmatic diagram, a distortion diagram, and a magnification chromatic aberration diagram, respectively, on an imaging lens axis according to embodiment 6 of the present invention;
Fig. 31 schematically shows a structural arrangement diagram of an imaging lens according to embodiment 7 of the present invention;
fig. 32 to 35 schematically show a chromatic aberration diagram, an astigmatic diagram, a distortion diagram, and a magnification chromatic aberration diagram, respectively, on an imaging lens axis according to embodiment 7 of the present invention;
fig. 36 schematically shows a structural arrangement diagram of an imaging lens according to embodiment 8 of the present invention;
Fig. 37 to 40 schematically show a chromatic aberration diagram, an astigmatic diagram, a distortion diagram, and a magnification chromatic aberration diagram, respectively, on an imaging lens axis according to embodiment 8 of the present invention;
Fig. 41 schematically shows a structural arrangement diagram of an imaging lens according to embodiment 9 of the present invention;
fig. 42 to 45 schematically show a chromatic aberration diagram, an astigmatic diagram, a distortion diagram, and a magnification chromatic aberration diagram, respectively, on an imaging lens axis according to embodiment 9 of the present invention.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments will be briefly described below. It is apparent that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.
In describing embodiments of the present invention, the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in terms of orientation or positional relationship shown in the drawings for convenience of description and simplicity of description only, and do not denote or imply that the devices or elements in question must have a particular orientation, be constructed and operated in a particular orientation, so that the above terms are not to be construed as limiting the invention.
The present invention will be described in detail below with reference to the drawings and the specific embodiments, which are not described in detail herein, but the embodiments of the present invention are not limited to the following embodiments.
The invention provides an imaging lens, which comprises a first lens 1, a second lens 2, a third lens 3, a fourth lens 4 and a fifth lens 5 which are sequentially arranged from an object side to an image side along an optical axis, wherein the first lens 1 and the fourth lens 4 are negative focal power lenses, the object side of the second lens 2 is a concave surface, and the third lens 3 and the fifth lens 5 are positive focal power lenses.
In the present invention, the relation between the maximum effective radius DT21 of the object side surface of the second lens element 2 and the maximum effective radius DT31 of the object side surface of the third lens element 3 is satisfied: 0.45 < DT21/DT31 < 1.0.
According to the arrangement, the effective radiuses of the second lens 2 and the third lens 3 are reasonably controlled, so that the front end size of the lens is reduced, and the whole camera lens group is lighter and thinner; on the other hand, the range of the incident light is reasonably limited, light with poor edge quality is removed, off-axis aberration is reduced, and the resolution of the camera lens group is effectively improved.
In the present invention, the relation between the maximum effective radius DT11 of the object side surface of the first lens 1 and half the diagonal length ImgH of the effective pixel region on the imaging surface of the lens satisfies: DT11/ImgH 0.45 < 0.70. So set up, the ratio of rational control first lens 1 and the biggest half height can reduce camera lens front end size effectively, realizes that camera lens group front end is miniaturized, especially various comprehensive screens of current market popularity, further requires the camera lens front end to be miniaturized, ensures that this camera lens group can adapt to market demand better.
In the present invention, the on-axis distance SAG41 between the intersection point of the object side surface of the fourth lens 4 and the optical axis of the lens and the vertex of the effective radius of the object side surface of the fourth lens 4 satisfies the relationship between the center thickness CT4 of the fourth lens 4 on the optical axis of the lens: -4.0 < SAG41/CT4 < -2.0. By reasonably controlling the ratio of the sagittal height and the central thickness of the object side surface of the fourth lens 4, the arrangement is beneficial to ensuring the processing, forming and assembling of the fourth lens 4 so as to obtain good imaging quality. The unreasonable ratio can cause difficult adjustment of molding surface type, easy deformation after assembly is obvious, and further the imaging quality can not be ensured.
In the present invention, the sum Σat of the air intervals on the optical axis of the lens element of any adjacent two lenses having optical power of the first lens element 1 to the fifth lens element 5 satisfies the relationship between the on-axis distance TD from the object side surface of the first lens element 1 to the image side surface of the fifth lens element 5: sigma AT/TD is 0.21 < 0.50. By means of the arrangement, the air gaps in the camera lens are reasonably distributed, machining and assembling characteristics can be guaranteed, and the problems that the gaps are too small to cause interference of front and rear lenses in the assembling process are avoided. Meanwhile, the method is favorable for slowing down light deflection, adjusting the field curvature of the camera lens group, reducing the sensitivity degree and further obtaining better imaging quality.
In the present invention, the air interval T12 of the first lens 1 and the second lens 2 on the optical axis of the lens and the center thickness CT3 of the third lens 3 on the optical axis of the lens satisfy the relation: T12/CT3 is more than 0.30 and less than 0.70. By doing so, the air gap between the first lens 1 and the second lens 2 and the intermediate thickness of the third lens 3 are reasonably adjusted, the risk of the first and third ghost images can be effectively reduced, and the size compression of the imaging lens will be facilitated.
In the present invention, the third lens 3 satisfies the relationship between the center thickness CT3 on the optical axis of the lens and half the diagonal length ImgH of the effective pixel region on the imaging surface of the lens: CT3/ImgH < 0.40. The arrangement, the central thickness of the third lens 3 is reasonably controlled, miniaturization of the camera lens is guaranteed, astigmatism of the camera lens can be effectively reduced by matching the first lens 1 and the second lens 2, and difficulties in processing, forming stress, coating and the like caused by the fact that the third lens 3 is too thick are avoided.
In the invention, the relationship between half of the diagonal length ImgH of the effective pixel area on the imaging surface of the lens and the axial distance TTL from the object side surface of the first lens 1 to the imaging surface of the lens is satisfied: imgH/TTL is more than 0.50 and less than 1.0. By the arrangement, the total size of the camera lens group can be effectively reduced, and the ultra-thin characteristic and miniaturization of the camera lens are realized, so that the camera lens can be better suitable for more and more ultra-thin electronic products in the market.
In the present invention, the relationship between the radius of curvature R8 of the image-side surface of the fourth lens element 4 and the effective focal length f of the lens element is: -0.55 < R8/f < -0.10. By controlling the curvature radius of the image side surface of the fourth lens element 4 and the total effective focal length ratio in a reasonable range, the imaging lens assembly can be miniaturized, has high aberration correction capability, and can achieve better manufacturability.
In the present invention, the on-axis distance SAG11 between the intersection point of the first lens 1 object side surface and the optical axis of the lens and the vertex of the effective radius of the first lens 1 object side surface satisfies the relationship between the maximum effective radius DT11 of the first lens 1 object side surface: 0.10 < SAG11/DT11 < 0.50. The device is arranged in such a way, the ratio of the sagittal height of the object side surface of the first lens 1 to the effective radius of the first lens 1 is reasonably controlled, on one hand, the size of the front end of the lens is effectively reduced, and on the other hand, the processing and the forming of the first lens 1 are favorably ensured, so that a good imaging effect is obtained.
In the invention, half of the maximum field angle of the lens, semi-FOV, is greater than 55 °. In the invention, the semi-FOV is controlled to be more than 55 degrees, and the camera lens group can cover a large range of scenes in actual shooting, so that wide air potential of the large scene can be effectively shown. Compared with a conventional lens with a small view field, the lens has the advantages that the foreground can be emphasized, the far-near contrast is highlighted, and the space depth sense of a shot picture is increased.
The following sets of 8 embodiments are given to specifically explain the imaging lens according to the present invention according to the above-described arrangement of the present invention. Since the imaging lens according to the present invention has five lenses in total, the five lenses have 10 faces in total. The 10 faces are arranged in order according to the structural order of the present invention, and for convenience of description, the 10 faces are numbered S1 to S10. The surface of the diaphragm in the imaging lens is denoted by STO, the two surfaces of the filter are denoted by S11 and S12, the imaging surface is denoted by S13, and the object surface is denoted by OBJ.
The 9 sets of embodiment data are as set forth in tables 1 and 2 below:
Parameter/embodiment 1 2 3 4 5 6 7 8 9
TTL(mm) 4.83 4.86 4.87 4.88 4.90 4.97 5.00 4.87 4.78
semi-FOV(°) 62.83 56.10 58.00 59.00 57.19 58.13 55.01 58.05 67.27
Fno 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40
f(mm) 1.87 1.62 1.72 1.61 1.64 1.61 1.55 1.78 1.58
f1(mm) -8.12 -6.87 -6.05 -8.49 -12.52 -9.05 -9.28 -5.50 -4.32
f2(mm) 8.37 3.86 3.83 3.72 2.93 -219.71 -5.30 4.81 4.19
f3(mm) 1.47 1.55 1.59 1.74 2.04 1.29 1.09 1.45 1.45
f4(mm) -1.64 -1.00 -1.15 -1.04 -0.93 -1.13 -1.04 -1.18 -1.01
f5(mm) 2.98 1.41 1.52 1.33 1.18 1.60 1.51 1.62 1.46
TABLE 1
Conditional\embodiment 1 2 3 4 5 6 7 8 9
semi-FOV(°) 62.83 56.10 58.00 59.00 57.19 58.13 55.01 58.05 67.27
DT11/Imgh 0.49 0.57 0.48 0.61 0.56 0.59 0.61 0.46 0.49
SAG41/CT4 -2.78 -2.92 -3.38 -3.53 -3.34 -3.25 -2.98 -2.08 -2.86
SAG11/DT11 0.23 0.23 0.34 0.20 0.13 0.23 0.16 0.28 0.16
DT21/DT31 0.47 0.51 0.44 0.50 0.48 0.46 0.48 0.65 0.45
DT11/TTL 0.30 0.32 0.27 0.34 0.33 0.32 0.31 0.28 0.29
T12/CT3 0.45 0.60 0.45 0.65 0.62 0.52 0.57 0.32 0.49
CT3/ImgH 0.37 0.33 0.34 0.33 0.31 0.38 0.39 0.33 0.35
ImgH/TTL 1.19 1.82 1.32 1.95 2.02 1.36 1.46 0.98 1.41
R8/f -0.40 -0.41 -0.33 -0.31 -0.39 -0.46 -0.52 -0.41 -0.46
TABLE 2
Embodiment 1:
fig. 1 schematically shows a structural arrangement diagram of an imaging lens according to embodiment 1 of the present invention.
Table 3 below lists relevant parameters of each lens of the present embodiment, including surface type, radius of curvature, thickness, refractive index of material, and abbe number and cone coefficient:
TABLE 3 Table 3
In this embodiment, data of each lens surface is shown in table 4 below:
Surface of the body A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 1.9565E-01 -1.6660E-01 1.5875E-01 -1.0647E-01 4.8292E-02 -1.2398E-02 1.4269E-03 0.0000E+00 0.0000E+00
S2 5.6209E-01 -1.2231E+00 3.4011E+00 -6.7084E+00 8.4874E+00 -5.8076E+00 1.5873E+00 0.0000E+00 0.0000E+00
S3 -1.9438E-01 8.3804E-01 -1.7018E+01 1.7477E+02 -9.4173E+02 2.6020E+03 -3.0299E+03 0.0000E+00 0.0000E+00
S4 -1.0278E+00 4.5932E+00 -2.2472E+01 7.7940E+01 -1.7847E+02 2.3965E+02 -1.4758E+02 0.0000E+00 0.0000E+00
S5 -1.4495E-01 5.8894E-01 -1.4060E+00 2.3809E+00 -2.3996E+00 1.2943E+00 -2.8894E-01 0.0000E+00 0.0000E+00
S6 5.9126E-04 5.8039E-01 -2.8856E+00 5.1374E+00 -4.5120E+00 2.0170E+00 -3.6891E-01 0.0000E+00 0.0000E+00
S7 -1.6830E-01 1.4085E+00 -4.7546E+00 8.2179E+00 -7.6230E+00 3.6650E+00 -7.3456E-01 0.0000E+00 0.0000E+00
S8 -7.9634E-02 4.2788E-01 -5.8624E-01 5.5226E-01 -3.1188E-01 9.0929E-02 -1.0560E-02 0.0000E+00 0.0000E+00
S9 8.9666E-02 -1.4999E-01 4.8174E-02 -1.8444E-02 1.2166E-02 -4.5224E-03 8.5467E-04 -8.0477E-05 3.0233E-06
S10 1.2585E-01 -2.7353E-01 1.7931E-01 -6.7041E-02 1.5171E-02 -1.9696E-03 1.1239E-04 1.8961E-06 -3.7550E-07
TABLE 4 Table 4
Fig. 2 to 5 schematically show an on-axis chromatic aberration curve, an astigmatic curve, a distortion curve, and a chromatic aberration curve, respectively, of the imaging lens in the present embodiment.
As shown in fig. 2 to 5, the imaging lens according to embodiment 1 of the present invention also has a good imaging effect on the basis of ensuring miniaturization.
Embodiment 2:
Fig. 6 schematically shows a structural arrangement diagram of an imaging lens according to embodiment 2 of the present invention.
Table 5 below lists relevant parameters of each lens of the present embodiment, including surface type, radius of curvature, thickness, refractive index of material, and abbe number and cone coefficient:
TABLE 5
In this embodiment, each lens surface data is shown in table 6 below:
Surface of the body A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 1.2915E-01 -8.0619E-02 5.8970E-02 -3.0984E-02 1.1927E-02 -2.8567E-03 3.4057E-04 0.0000E+00 0.0000E+00
S2 3.3097E-01 -2.5244E-01 -3.0837E-02 1.7008E+00 -4.0405E+00 4.3393E+00 -1.7914E+00 0.0000E+00 0.0000E+00
S3 -3.8298E-01 6.1878E-01 -2.7916E+01 3.7008E+02 -2.8232E+03 1.1053E+04 -1.7688E+04 0.0000E+00 0.0000E+00
S4 -6.9407E-01 1.5587E+00 -9.1432E+00 4.0497E+01 -1.1642E+02 1.7520E+02 -1.0682E+02 0.0000E+00 0.0000E+00
S5 -1.5717E-01 -6.8678E-02 5.9803E-01 -1.2244E-01 -8.6814E-01 8.5949E-01 -2.0456E-01 0.0000E+00 0.0000E+00
S6 3.1301E-02 4.6892E-01 -2.1896E+00 3.4160E+00 -2.5764E+00 6.6157E-01 1.2739E-01 0.0000E+00 0.0000E+00
S7 -7.7008E-03 1.4112E+00 -4.8379E+00 8.0890E+00 -7.6230E+00 3.6650E+00 -7.3456E-01 0.0000E+00 0.0000E+00
S8 -3.4290E-02 4.3214E-01 -5.9515E-01 5.5023E-01 -3.1188E-01 9.0929E-02 -1.0560E-02 0.0000E+00 0.0000E+00
S9 1.4109E-01 -2.9895E-01 2.9420E-01 -2.6159E-01 1.2652E-01 -1.9698E-02 -5.0519E-03 2.1553E-03 -2.1163E-04
S10 3.1634E-01 -3.5874E-01 1.5675E-01 -2.2170E-02 -9.6863E-03 5.7402E-03 -1.3311E-03 1.5559E-04 -7.5457E-06
TABLE 6
Fig. 7 to 10 schematically show an on-axis chromatic aberration curve, an astigmatic curve, a distortion curve, and a chromatic aberration curve, respectively, of the imaging lens in the present embodiment.
As shown in fig. 7 to 10, the imaging lens according to embodiment 2 of the present invention also has a good imaging effect on the basis of ensuring miniaturization.
Embodiment 3:
fig. 11 schematically shows a structural arrangement diagram of an imaging lens according to embodiment 3 of the present invention.
Table 7 below lists relevant parameters of each lens of the present embodiment, including surface type, radius of curvature, thickness, refractive index of material, and abbe number and cone coefficient:
TABLE 7
In this embodiment, each lens surface data is shown in table 8 below:
Surface of the body A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 1.4231E-01 -7.3199E-02 7.1901E-02 -6.3202E-02 4.8838E-02 -2.2611E-02 4.8411E-03 0.0000E+00 0.0000E+00
S2 4.7931E-01 1.6630E-01 -4.5455E+00 2.6601E+01 -7.5623E+01 1.1091E+02 -6.5280E+01 0.0000E+00 0.0000E+00
S3 -2.6092E-01 -7.6088E-01 1.3997E+01 -2.7103E+02 2.5612E+03 -1.2026E+04 2.2188E+04 0.0000E+00 0.0000E+00
S4 -5.6989E-01 5.8711E-01 -2.6121E+00 5.0406E+00 2.7661E+00 -3.3844E+01 4.5458E+01 0.0000E+00 0.0000E+00
S5 -2.7288E-01 3.4685E-01 -1.2380E+00 3.0553E+00 -3.4976E+00 2.1582E+00 -5.9608E-01 0.0000E+00 0.0000E+00
S6 -1.5268E-01 8.8370E-01 -2.0527E+00 1.4514E+00 1.2247E+00 -2.5890E+00 1.1654E+00 0.0000E+00 0.0000E+00
S7 2.6202E-03 1.4258E+00 -4.8157E+00 8.1366E+00 -7.6230E+00 3.6650E+00 -7.3456E-01 0.0000E+00 0.0000E+00
S8 -9.2371E-02 4.2626E-01 -5.9083E-01 5.5394E-01 -3.1188E-01 9.0929E-02 -1.0560E-02 0.0000E+00 0.0000E+00
S9 9.6468E-02 -1.0031E-01 -4.8480E-02 1.2333E-01 -1.3922E-01 8.6688E-02 -2.8833E-02 4.8542E-03 -3.2741E-04
S10 4.0091E-01 -3.7729E-01 1.3829E-01 -4.0189E-03 -1.6899E-02 7.1486E-03 -1.4172E-03 1.4327E-04 -5.9251E-06
TABLE 8
Fig. 12 to 15 schematically show an on-axis chromatic aberration curve, an astigmatic curve, a distortion curve, and a chromatic aberration curve, respectively, of the imaging lens in the present embodiment.
As shown in fig. 12 to 15, the imaging lens according to embodiment 3 of the present invention also has a good imaging effect on the basis of ensuring miniaturization.
Embodiment 4:
Fig. 16 schematically shows a structural arrangement diagram of an imaging lens according to embodiment 4 of the present invention.
Table 9 below lists relevant parameters of each lens of the present embodiment, including surface type, radius of curvature, thickness, refractive index of material, and abbe number and cone coefficient:
TABLE 9
In this embodiment, each lens surface data is shown in table 10 below:
Surface of the body A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 1.0468E-01 -5.2821E-02 2.9210E-02 -1.0213E-02 2.1888E-03 -2.0254E-04 6.9092E-06 0.0000E+00 0.0000E+00
S2 2.7294E-01 -1.9246E-01 6.0825E-02 5.9401E-01 -1.3014E+00 1.2280E+00 -4.3657E-01 0.0000E+00 0.0000E+00
S3 -3.2184E-01 1.0352E-01 -1.4252E+01 1.6500E+02 -1.0273E+03 2.8658E+03 -2.6575E+03 0.0000E+00 0.0000E+00
S4 -6.1690E-01 7.0773E-01 -1.6439E+00 -8.8018E+00 7.0072E+01 -1.9010E+02 1.7965E+02 0.0000E+00 0.0000E+00
S5 -2.3766E-01 -1.1949E-02 3.3924E-01 -1.5468E+00 5.1377E+00 -7.3339E+00 3.6691E+00 0.0000E+00 0.0000E+00
S6 -2.0406E-01 1.1633E+00 -3.3685E+00 4.7560E+00 -3.6634E+00 1.3802E+00 -1.8984E-01 0.0000E+00 0.0000E+00
S7 1.7796E-02 1.3884E+00 -4.8326E+00 8.1570E+00 -7.6230E+00 3.6650E+00 -7.3456E-01 0.0000E+00 0.0000E+00
S8 -7.7540E-02 4.3429E-01 -5.9245E-01 5.5315E-01 -3.1188E-01 9.0929E-02 -1.0560E-02 0.0000E+00 0.0000E+00
S9 1.9210E-02 1.0877E-01 -4.2542E-01 5.4880E-01 -4.7601E-01 2.6331E-01 -8.4613E-02 1.4328E-02 -9.9063E-04
S10 3.9347E-01 -2.3556E-01 -1.0543E-01 2.0563E-01 -1.2420E-01 4.1173E-02 -7.9788E-03 8.4813E-04 -3.8245E-05
Table 10
Fig. 17 to 20 schematically show an on-axis chromatic aberration curve, an astigmatic curve, a distortion curve, and a chromatic aberration curve, respectively, of the imaging lens in the present embodiment.
As shown in fig. 17 to 20, the imaging lens according to embodiment 4 of the present invention also has a good imaging effect on the basis of ensuring miniaturization.
Embodiment 5:
Fig. 21 schematically shows a structural arrangement diagram of an imaging lens according to embodiment 5 of the present invention.
Table 11 below lists relevant parameters of each lens of the present embodiment, including surface type, radius of curvature, thickness, refractive index of material, and abbe number and cone coefficient:
/>
TABLE 11
In this embodiment, each lens surface data is shown in table 12 below:
Surface of the body A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 9.4002E-02 -5.8150E-02 4.6068E-02 -2.5091E-02 8.9880E-03 -1.8256E-03 1.6409E-04 0.0000E+00 0.0000E+00
S2 3.1854E-01 -4.4389E-01 8.7116E-01 -1.1572E+00 9.9257E-01 -4.6758E-01 9.0312E-02 0.0000E+00 0.0000E+00
S3 -2.5484E-01 -8.9710E-01 1.9870E+01 -3.0863E+02 2.4679E+03 -1.0549E+04 1.8636E+04 0.0000E+00 0.0000E+00
S4 -2.8598E-01 -1.5381E-01 9.9791E-01 -6.7041E+00 2.5684E+01 -8.3789E+01 9.3144E+01 0.0000E+00 0.0000E+00
S5 -1.4034E-01 8.6110E-02 8.5006E-03 1.3453E+00 -3.4322E+00 3.2050E+00 -1.0735E+00 0.0000E+00 0.0000E+00
S6 5.6503E-02 -2.9505E-01 1.4968E+00 -4.4047E+00 6.2596E+00 -4.3607E+00 1.1939E+00 0.0000E+00 0.0000E+00
S7 -2.0959E-01 1.6307E+00 -2.8306E+00 1.7432E+00 4.4776E-01 -1.1652E+00 4.0664E-01 0.0000E+00 0.0000E+00
S8 -1.7948E-01 4.3966E-01 2.3518E-02 -5.0256E-01 4.3515E-01 -1.5643E-01 2.1202E-02 0.0000E+00 0.0000E+00
S9 1.7358E-01 -2.7811E-01 2.2048E-01 -1.6641E-01 8.7333E-02 -2.7239E-02 4.8778E-03 -4.6645E-04 1.8521E-05
S10 5.8805E-01 -6.1503E-01 3.4395E-01 -1.2329E-01 2.9124E-02 -4.4672E-03 4.1861E-04 -2.0823E-05 3.7681E-07
Table 12
Fig. 22 to 25 schematically show an on-axis chromatic aberration curve, an astigmatic curve, a distortion curve, and a chromatic aberration curve of the imaging lens in the present embodiment, respectively.
As shown in fig. 22 to 25, the imaging lens according to embodiment 5 of the present invention also has a good imaging effect on the basis of ensuring miniaturization.
Embodiment 6:
Fig. 26 schematically shows a structural arrangement diagram of an imaging lens according to embodiment 6 of the present invention.
Table 13 below lists relevant parameters of each lens of the present embodiment, including surface type, radius of curvature, thickness, refractive index of material, and abbe number and cone coefficient:
TABLE 13
In this embodiment, each lens surface data is shown in table 14 below:
Surface of the body A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 1.6170E-01 -1.3551E-01 1.1487E-01 -6.6461E-02 2.5130E-02 -5.4717E-03 5.4391E-04 0.0000E+00 0.0000E+00
S2 4.1569E-01 -7.1182E-01 1.3589E+00 -1.7720E+00 1.4574E+00 -6.6569E-01 1.2799E-01 0.0000E+00 0.0000E+00
S3 -1.2378E-01 -3.2890E-01 4.2055E+00 -1.2170E+01 -1.0952E+02 1.0883E+03 -3.0542E+03 0.0000E+00 0.0000E+00
S4 -1.6439E+00 9.0092E+00 -5.0613E+01 2.0978E+02 -5.4840E+02 7.9538E+02 -4.8847E+02 0.0000E+00 0.0000E+00
S5 -1.8371E-01 2.4604E-02 1.5358E+00 -3.7078E+00 4.1598E+00 -2.3661E+00 5.4631E-01 0.0000E+00 0.0000E+00
S6 1.5101E-01 -2.5269E-01 -7.2720E-01 2.7373E+00 -3.8638E+00 2.6022E+00 -6.7640E-01 0.0000E+00 0.0000E+00
S7 -2.9149E-01 1.5447E+00 -3.2024E+00 4.3447E+00 -4.2660E+00 2.4817E+00 -6.0326E-01 0.0000E+00 0.0000E+00
S8 -1.4916E-01 3.5577E-01 3.3246E-01 -1.0996E+00 9.7341E-01 -3.8123E-01 5.6684E-02 0.0000E+00 0.0000E+00
S9 1.3625E-01 -1.9766E-01 1.2938E-01 -7.9348E-02 3.2281E-02 -6.8814E-03 6.2245E-04 1.7495E-07 -2.3434E-06
S10 2.3707E-01 -2.8965E-01 1.5341E-01 -5.1007E-02 1.1000E-02 -1.3969E-03 5.6790E-05 8.2272E-06 -8.3970E-07
TABLE 14
Fig. 27 to 30 schematically show an on-axis chromatic aberration curve, an astigmatic curve, a distortion curve, and a chromatic aberration curve, respectively, of the imaging lens in the present embodiment.
As shown in fig. 27 to 30, the imaging lens according to embodiment 6 of the present invention also has a good imaging effect on the basis of ensuring miniaturization.
Embodiment 7:
fig. 31 schematically shows a structural arrangement diagram of an imaging lens according to embodiment 7 of the present invention.
Table 15 below lists relevant parameters of each lens of the present embodiment, including surface type, radius of curvature, thickness, refractive index of material, and abbe number and cone coefficient:
TABLE 15
In this embodiment, each lens surface data is shown in table 16 below:
Surface of the body A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 1.4692E-01 -1.1470E-01 9.5972E-02 -5.7344E-02 2.2334E-02 -4.8832E-03 4.6070E-04 0.0000E+00 0.0000E+00
S2 3.9300E-01 -6.7369E-01 1.3602E+00 -1.9674E+00 1.7986E+00 -9.0405E-01 1.8870E-01 0.0000E+00 0.0000E+00
S3 -8.4852E-02 -1.7956E+00 3.0679E+01 -2.6178E+02 1.1998E+03 -2.4721E+03 7.5218E+02 0.0000E+00 0.0000E+00
S4 -2.8707E+00 1.7992E+01 -1.0050E+02 4.0099E+02 -1.0144E+03 1.4523E+03 -8.9506E+02 0.0000E+00 0.0000E+00
S5 -4.7709E-01 1.5313E+00 -3.6390E+00 7.6052E+00 -1.0544E+01 7.9572E+00 -2.4644E+00 0.0000E+00 0.0000E+00
S6 2.3669E-01 -6.0463E-01 5.1307E-01 3.6468E-02 -7.8359E-01 8.7242E-01 -2.9314E-01 0.0000E+00 0.0000E+00
S7 -5.7682E-01 3.0438E+00 -6.2655E+00 7.3474E+00 -5.5190E+00 2.4789E+00 -4.9785E-01 0.0000E+00 0.0000E+00
S8 -3.5011E-01 1.1413E+00 -9.4910E-01 3.2545E-02 4.0637E-01 -2.2970E-01 3.9943E-02 0.0000E+00 0.0000E+00
S9 1.1085E-02 4.3377E-02 -1.1588E-01 9.6256E-02 -5.6014E-02 2.1677E-02 -4.8860E-03 5.7251E-04 -2.6934E-05
S10 1.4525E-01 -4.6956E-02 -7.6336E-02 7.7923E-02 -3.5933E-02 9.7409E-03 -1.5921E-03 1.4486E-04 -5.6155E-06
Table 16
Fig. 32 to 35 schematically show an on-axis chromatic aberration curve, an astigmatic curve, a distortion curve, and a chromatic aberration curve, respectively, of the imaging lens in the present embodiment.
As shown in fig. 32 to 35, the imaging lens according to embodiment 7 of the present invention also has a good imaging effect on the basis of ensuring miniaturization.
Embodiment 8:
fig. 36 schematically shows a structural arrangement diagram of an imaging lens according to embodiment 8 of the present invention.
Table 17 below lists relevant parameters of each lens of the present embodiment, including surface type, radius of curvature, thickness, refractive index of material, and abbe number and conic coefficient:
Surface of the body Surface type Radius of curvature Thickness of (L) Refractive index/Abbe number of the material Coefficient of taper
OBJ Spherical surface Infinity is provided Infinity is provided
S1 Aspherical surface 9.8413 0.5662 1.54/55.9 50.6187
S2 Aspherical surface 2.2341 0.3085 -21.4888
S3 Aspherical surface -9.0267 0.3500 1.55/56.1 99.0000
S4(STO) Aspherical surface -2.0714 0.3603 1.4692
S5 Aspherical surface 2.5978 0.9607 1.55/56.1 -9.3054
S6 Aspherical surface -0.9975 0.2129 -0.7304
S7 Aspherical surface -0.3152 0.3091 1.67/20.4 -2.0361
S8 Aspherical surface -0.7267 0.0300 -3.0515
S9 Aspherical surface 0.7186 0.6679 1.55/56.1 -5.2897
S10 Aspherical surface 2.5259 0.5481 -9.1081
S11 Spherical surface Infinity is provided 0.1100 1.52/64.2
S12 Spherical surface Infinity is provided 0.4463
S13 Spherical surface Infinity is provided
TABLE 17
In this embodiment, each lens surface data is shown in table 18 below:
Face number A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 1.0103E-01 -1.0264E-01 1.4491E-01 -1.6061E-01 1.1390E-01 -4.4172E-02 7.4757E-03 0.0000E+00 0.0000E+00
S2 5.2063E-01 -1.7107E+00 1.1467E+01 -5.3245E+01 1.4975E+02 -2.2672E+02 1.4517E+02 0.0000E+00 0.0000E+00
S3 -2.1054E-01 -9.1287E-01 7.0056E+00 -4.2485E+01 1.5350E+02 -3.0615E+02 2.5354E+02 0.0000E+00 0.0000E+00
S4 -3.0568E-01 -1.4869E-01 2.2144E+00 -1.9770E+01 8.1795E+01 -1.4374E+02 8.7505E+01 0.0000E+00 0.0000E+00
S5 -5.0066E-02 6.4674E-02 -1.4102E-01 1.8245E-01 -1.7669E-01 8.6151E-02 -1.2226E-02 0.0000E+00 0.0000E+00
S6 1.8988E-02 4.4061E-01 -1.1074E+00 9.4102E-01 -1.6819E-01 -2.4538E-01 1.1386E-01 0.0000E+00 0.0000E+00
S7 2.3793E-02 6.7010E-01 -1.7703E+00 2.2255E+00 -1.5622E+00 5.6300E-01 -8.4586E-02 0.0000E+00 0.0000E+00
S8 -4.7022E-02 2.3049E-01 -2.1667E-01 1.4590E-01 -6.3913E-02 1.3968E-02 -1.2160E-03 0.0000E+00 0.0000E+00
S9 2.1486E-01 -5.0647E-01 6.9960E-01 -8.1309E-01 6.2295E-01 -2.9860E-01 8.3300E-02 -1.2210E-02 7.2488E-04
S10 3.7877E-01 -4.7939E-01 3.0117E-01 -1.2024E-01 3.2173E-02 -5.8517E-03 7.0670E-04 -5.2037E-05 1.7686E-06
TABLE 18
Fig. 37 to 40 schematically show an on-axis chromatic aberration curve, an astigmatic curve, a distortion curve, and a chromatic aberration curve, respectively, of the imaging lens in the present embodiment.
As shown in fig. 37 to 40, the imaging lens according to embodiment 8 of the present invention also has a good imaging effect on the basis of ensuring miniaturization.
Embodiment 9:
Fig. 41 schematically shows a structural arrangement diagram of an imaging lens according to embodiment 9 of the present invention.
Table 19 below lists relevant parameters of each lens of the present embodiment, including surface type, radius of curvature, thickness, material refractive index and abbe number and cone coefficient:
Surface of the body Surface type Radius of curvature Thickness of (L) Refractive index/Abbe number of the material Coefficient of taper
OBJ Spherical surface Infinity is provided Infinity is provided
S1 Aspherical surface -2.5068 0.3835 1.54/55.9 -29.3111
S2 Aspherical surface 32.5735 0.3917 99.0000
STO Spherical surface Infinity is provided 0.0866
S3 Aspherical surface -3.8041 0.4072 1.55/56.1 41.0660
S4 Aspherical surface -1.4814 0.1556 2.1897
S5 Aspherical surface 2.5065 0.9823 1.55/56.1 -53.3020
S6 Aspherical surface -0.9921 0.2427 -0.9067
S7 Aspherical surface -0.2971 0.2643 1.67/20.4 -2.1259
S8 Aspherical surface -0.7205 0.1135 -4.1509
S9 Aspherical surface 0.6999 0.7215 1.55/56.1 -4.9114
S10 Aspherical surface 3.7148 0.5118 -0.5581
S11 Spherical surface Infinity is provided 0.1100 1.52/64.2
S12 Spherical surface Infinity is provided 0.4058
S13 Spherical surface Infinity is provided
TABLE 19
In this embodiment, each lens surface data is shown in table 20 below:
Surface of the body A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 2.6202E-01 -2.9019E-01 3.0056E-01 -2.1627E-01 1.0124E-01 -2.6903E-02 3.1283E-03 0.0000E+00 0.0000E+00
S2 6.5945E-01 -7.9386E-01 -1.2503E-02 7.6628E+00 -2.3588E+01 3.2125E+01 -1.6269E+01 0.0000E+00 0.0000E+00
S3 -3.0745E-01 1.1749E+00 -4.2275E+01 6.0997E+02 -4.8656E+03 1.9783E+04 -3.2763E+04 0.0000E+00 0.0000E+00
S4 -6.7257E-01 1.9838E+00 -1.2172E+01 5.5199E+01 -1.7223E+02 3.1084E+02 -2.6134E+02 0.0000E+00 0.0000E+00
S5 -3.9699E-02 -1.0124E-01 4.4777E-01 -4.3754E-01 9.8930E-02 1.2315E-01 -7.1966E-02 0.0000E+00 0.0000E+00
S6 7.1770E-02 4.0085E-01 -3.9168E+00 1.0010E+01 -1.2399E+01 7.6952E+00 -1.9040E+00 0.0000E+00 0.0000E+00
S7 -3.4686E-02 4.6692E-01 -2.4558E+00 6.4356E+00 -8.6238E+00 5.6347E+00 -1.4407E+00 0.0000E+00 0.0000E+00
S8 -4.6857E-02 7.8697E-02 3.5729E-01 -6.1313E-01 4.1879E-01 -1.3720E-01 1.7791E-02 0.0000E+00 0.0000E+00
S9 -6.4301E-03 5.0684E-02 -6.9247E-02 1.6442E-02 4.3805E-03 -2.6068E-03 4.4809E-04 -3.1043E-05 5.8532E-07
S10 3.3956E-02 1.2220E-01 -2.1298E-01 1.4307E-01 -5.4418E-02 1.2686E-02 -1.7999E-03 1.4284E-04 -4.8582E-06
Table 20
Fig. 42 to 45 schematically show an on-axis chromatic aberration curve, an astigmatic curve, a distortion curve, and a chromatic aberration curve of the imaging lens in the present embodiment, respectively.
As shown in fig. 42 to 45, the imaging lens according to embodiment 9 of the present invention also has a good imaging effect on the basis of ensuring miniaturization.
The above description is only one embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. An imaging lens comprising: a first lens (1), a diaphragm (S), a second lens (2), a third lens (3), a fourth lens (4) and a fifth lens (5) which are sequentially arranged from an object side to an image side along an optical axis, wherein the total of five lenses is five, the first lens (1) and the fourth lens (4) are negative focal power lenses, the object side surface of the second lens (2) is a concave surface, and the third lens (3) and the fifth lens (5) are positive focal power lenses; the lens system is characterized in that the maximum effective radius DT21 of the object side surface of the second lens (2) and the maximum effective radius DT31 of the object side surface of the third lens (3) satisfy the following relation: 0.45 < DT21/DT31 < 1.0;
The third lens (3) is a biconvex lens, the fourth lens (4) is a concave-convex lens, and the object side surface of the fifth lens (5) is a convex surface;
An on-axis distance SAG41 between an intersection point of the object side surface of the fourth lens (4) and the optical axis of the lens and an effective radius vertex of the object side surface of the fourth lens (4) and a center thickness CT4 of the fourth lens (4) on the optical axis of the lens satisfy the following relation: -4.0 < SAG41/CT4 < -2.0.
2. The imaging lens according to claim 1, wherein a relation between a maximum effective radius DT11 of an object side surface of the first lens (1) and half a diagonal length ImgH of an effective pixel region on an imaging surface of the lens is satisfied: DT11/ImgH 0.45 < 0.70.
3. The imaging lens according to claim 1, wherein a sum Σat of air intervals on an optical axis of the lens of any adjacent two lenses having optical powers of the first lens (1) to the fifth lens (5) and an on-axis distance TD from an object side surface of the first lens (1) to an image side surface of the fifth lens (5) satisfy a relation: sigma AT/TD is 0.21 < 0.50.
4. The imaging lens according to claim 1, wherein an air interval T12 of the first lens (1) and the second lens (2) on an optical axis of the lens and a center thickness CT3 of the third lens (3) on the optical axis of the lens satisfy a relation: T12/CT3 is more than 0.30 and less than 0.70.
5. The imaging lens according to claim 1, wherein a center thickness CT3 of the third lens (3) on an optical axis of the lens and a half of a diagonal length ImgH of an effective pixel region on an imaging surface of the lens satisfy a relation: CT3/ImgH < 0.40.
6. The imaging lens according to claim 1, wherein a relationship between half of a diagonal length ImgH of an effective pixel region on an imaging surface of the lens and an on-axis distance TTL from an object side surface of the first lens (1) to the imaging surface of the lens is satisfied: imgH/TTL is more than 0.50 and less than 1.0.
7. The imaging lens according to claim 1, wherein a radius of curvature R8 of an image side surface of the fourth lens (4) and an effective focal length f of the lens satisfy the relation: -0.55 < R8/f < -0.10.
8. The imaging lens according to claim 1, wherein an on-axis distance SAG11 between an intersection point of the object side surface of the first lens (1) and an optical axis of the lens and an effective radius vertex of the object side surface of the first lens (1) satisfies a relationship between a maximum effective radius DT11 of the object side surface of the first lens (1): 0.10 < SAG11/DT11 < 0.50.
9. The imaging lens according to any one of claims 1 to 8, wherein half of the maximum field angle Semi-FOV of the lens is greater than 55 °.
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