WO2019100868A1 - Optical imaging lens - Google Patents

Abstract

An optical imaging lens, comprising a first lens (E1), a second lens (E2), a third lens (E3), a fourth lens (E4), a fifth lens (E5), a sixth lens (E6), a seventh lens (E7), and an eighth lens (E8) having focal powers and arranged in sequence from an object side to an image side along an optical axis, wherein the image side surface of the second lens is concave; the image-side surface of the fifth lens is convex; the object-side surface of the sixth lens is concave and the image-side surface thereof is convex; the object-side surface of the seventh lens is convex and the image-side surface thereof is concave; the eighth lens has a negative focal power. The optical imaging lens obtained in this way has at least one beneficial effects of ultra-thinness, a small size, a large aperture, high imaging quality, etc.

Description

Optical imaging lens

Cross-reference to related applications

This application claims the priority and interest of the Chinese invention patent application filed on November 22, 2017 in the China State Intellectual Property Office (CNIPA) with the application number 201711170666.1 and the invention name "optical imaging lens". The application is hereby incorporated by reference in its entirety.

Technical field

The present application relates to an optical imaging lens, and more particularly to an optical imaging lens including eight lenses.

Background technique

The photosensitive element of a conventional image forming apparatus is generally a CCD (Charge-Coupled Device) or a CMOS (Complementary Metal-Oxide Semiconductor). The improved performance and size reduction of CCD and COMS components provide favorable conditions for the development of optical imaging lenses. At the same time, the trend toward miniaturization of electronic devices equipped with imaging devices, such as smart phones, has placed higher demands on miniaturization and imaging quality of optical imaging lenses equipped with imaging devices.

Summary of the invention

The present application provides an optical imaging lens having eight lenses. The optical imaging lens includes, in order from the object side to the image side along the optical axis, a first lens having a power, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, and The eighth lens, wherein: the image side surface of the second lens is a concave surface; the image side surface of the fifth lens is a convex surface; the object side surface of the sixth lens is a concave surface and the image side surface is a convex surface; the object side surface of the seventh lens is a convex surface and the image side surface is a convex surface The concave surface; and the power of the eighth lens is a negative power.

In one embodiment, the object side of the first lens is convex and the image side is concave.

In one embodiment, the object side of the second lens is convex.

In one embodiment, the image side of the third lens is concave.

In one embodiment, the object side of the eighth lens is convex and the image side is concave.

In one embodiment, the image height of the image side of the eighth lens at the maximum effective aperture SAG82 and the center thickness CT8 of the eighth lens satisfy the following relationship: -3.0 <SAG82/CT8<-1.0.

In one embodiment, the center thickness CT3 of the third lens and the center thickness CT4 of the fourth lens satisfy the following relationship: 0.5 ≤ CT3 / CT4 ≤ 1.0.

In one embodiment, the axial distance TTL from the center of the object side of the first lens to the imaging surface of the optical imaging lens and the semi-diagonal length ImgH of the effective pixel area on the imaging surface satisfy the following relationship: TTL / ImgH ≤ 1.6.

In one embodiment, the effective focal length f8 of the eighth lens and the center thickness CT8 of the eighth lens satisfy the following relationship: 9.0 < | f8 / CT8 | < 13.0.

In one embodiment, the effective focal length f of the optical imaging lens and the entrance pupil diameter EPD of the optical imaging lens satisfy the following relationship: f/EPD ≤ 2.0.

In one embodiment, the effective focal length f of the optical imaging lens and the radius of curvature R1 of the object side of the first lens satisfy the following relationship: 2.0 < f / R1 < 2.5.

In one embodiment, the radius of curvature R15 of the object side surface of the eighth lens and the curvature radius R16 of the image side surface of the eighth lens satisfy the following relationship: 1.0 < (R15 + R16) / (R15 - R16) < 2.0.

In one embodiment, the effective focal length f8 of the eighth lens and the radius of curvature R16 of the image side of the eighth lens satisfy the following relationship: -3.0 < f8 / R16 < -2.0.

In one embodiment, the effective focal length f of the optical imaging lens is equal to the effective focal length f1 of the first lens and the effective focal length f2 of the second lens: 0.5<|f/f1|+|f/f2|<1.5.

In one embodiment, the effective focal length f of the optical imaging lens and the effective focal length f8 of the eighth lens satisfy the following relationship: 1.0 <|f/f8|<1.5.

In one embodiment, the air space T45 on the optical axis of the fourth lens and the fifth lens and the air space T67 on the optical axis of the sixth lens and the seventh lens satisfy the following relationship: 0.5 < T45 / T67 < 1.5.

In one embodiment, the effective focal length f of the optical imaging lens and the radius of curvature R16 of the image side of the eighth lens satisfy the following relationship: 2.0 < f / R16 < 3.0.

In one embodiment, the center thickness CT4 of the fourth lens and the air interval T45 of the fourth lens and the fifth lens on the optical axis satisfy the following relationship: 2.5<CT4/T45<5.5.

Another aspect of the present application provides an optical imaging lens having eight lenses. The optical imaging lens includes, in order from the object side to the image side along the optical axis, a first lens having a power, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, and The eighth lens, wherein: the power of the second lens is positive power, the image side is concave; the image side of the fifth lens is convex; the object side of the sixth lens is concave and the image side is convex; the seventh lens The side of the object is convex and the side of the image is concave; the power of the eighth lens is negative.

Another aspect of the present application provides an optical imaging lens having eight lenses. The optical imaging lens includes, in order from the object side to the image side along the optical axis, a first lens having a power, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, and The eighth lens, wherein: the power of the second lens is positive power, the image side is concave; the image side of the fifth lens is convex; the object side of the sixth lens is concave and the image side is convex; the seventh lens The object side is convex and the image side is concave; the eighth lens has a power of negative power, and the image height of the image side of the eighth lens at the maximum effective aperture SAG82 satisfies the following relationship with the center thickness CT8 of the eighth lens :-3.0<SAG82/CT8<-1.0.

Another aspect of the present application provides an optical imaging lens having eight lenses. The optical imaging lens includes, in order from the object side to the image side along the optical axis, a first lens having a power, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, and The eighth lens, wherein: the power of the second lens is positive power, the image side is concave; the image side of the fifth lens is convex; the object side of the sixth lens is concave and the image side is convex; the seventh lens The object side is convex and the image side is concave; the eighth lens has a power of negative power, and the center thickness CT3 of the third lens and the center thickness CT4 of the fourth lens satisfy the following relationship: 0.5≤CT3/CT4≤ 1.0.

Another aspect of the present application provides an optical imaging lens having eight lenses. The optical imaging lens includes, in order from the object side to the image side along the optical axis, a first lens having a power, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, and The eighth lens, wherein: the power of the second lens is positive power, the image side is concave; the image side of the fifth lens is convex; the object side of the sixth lens is concave and the image side is convex; the seventh lens The side of the object is convex and the side of the image is concave; the power of the eighth lens is negative, and the distance from the center of the object side of the first lens to the imaging surface of the optical imaging lens is TTL and effective on the imaging surface The half-diagonal length ImgH of the pixel region satisfies the following relationship: TTL/ImgH ≤ 1.6.

The present application employs an eight-piece lens, which makes the optical imaging lens ultra-thin, miniaturized, large-aperture, and high by rationally distributing the surface shape of each lens, the center thickness of each lens, and the on-axis spacing between the lenses. At least one beneficial effect such as imaging quality.

DRAWINGS

Other features, objects, and advantages of the present invention will become more apparent from the description of the appended claims. In the drawing:

1 is a schematic structural view of an optical imaging lens according to Embodiment 1 of the present application;

2A to 2D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Embodiment 1;

3 is a schematic structural view of an optical imaging lens according to Embodiment 2 of the present application;

4A to 4D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Embodiment 2.

FIG. 5 is a schematic structural view of an optical imaging lens according to Embodiment 3 of the present application;

6A to 6D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Embodiment 3.

FIG. 7 is a schematic structural view of an optical imaging lens according to Embodiment 4 of the present application;

8A to 8D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Example 4;

9 is a schematic structural view of an optical imaging lens according to Embodiment 5 of the present application;

10A to 10D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Example 5;

11 is a schematic structural view of an optical imaging lens according to Embodiment 6 of the present application;

12A to 12D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Example 6;

FIG. 13 is a schematic structural view of an optical imaging lens according to Embodiment 7 of the present application;

14A to 14D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Embodiment 7;

15 is a schematic structural view of an optical imaging lens according to Embodiment 8 of the present application;

16A to 16D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Embodiment 8;

17 is a schematic structural view of an optical imaging lens according to Embodiment 9 of the present application;

18A to 18D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Example 9;

19 is a schematic structural view of an optical imaging lens according to Embodiment 10 of the present application;

20A to 20D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Embodiment 10.

21 is a schematic structural view of an optical imaging lens according to Embodiment 11 of the present application;

22A to 22D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Example 11;

23 is a schematic structural view of an optical imaging lens according to Embodiment 12 of the present application;

24A to 24D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Embodiment 12.

25 is a schematic structural view of an optical imaging lens according to Embodiment 13 of the present application;

26A to 26D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Example 13;

FIG. 27 is a block diagram showing the structure of an optical imaging lens according to Embodiment 14 of the present application;

28A to 28D respectively show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of Example 14.

Detailed ways

For a better understanding of the present application, various aspects of the present application will be described in more detail with reference to the accompanying drawings. It should be understood that the detailed description is only illustrative of the exemplary embodiments of the present application, and is not intended to limit the scope of the application. Throughout the specification, the same drawing reference numerals refer to the same elements. The expression "and/or" includes any and all combinations of one or more of the associated listed items.

It should be noted that in the present specification, the expressions of the first, second, third, etc. are used to distinguish one feature from another, and do not represent any limitation of the feature. Thus, the first lens discussed below may also be referred to as a second lens or a third lens without departing from the teachings of the present application.

In the drawings, the thickness, size, and shape of the lens have been somewhat exaggerated for convenience of explanation. Specifically, the spherical or aspherical shape shown in the drawings is shown by way of example. That is, the shape of the spherical surface or the aspherical surface is not limited to the spherical or aspherical shape shown in the drawings. The drawings are only examples and are not to scale.

As used herein, a paraxial region refers to a region near the optical axis. If the surface of the lens is convex and the position of the convex surface is not defined, it indicates that the surface of the lens is convex at least in the paraxial region; if the surface of the lens is concave and the position of the concave surface is not defined, it indicates that the surface of the lens is at least in the paraxial region. Concave. The surface closest to the object in each lens is referred to as the object side, and the surface of each lens closest to the image plane is referred to as the image side.

It is also to be understood that the terms "comprising", "including", "having", "include","," However, it is not excluded that one or more other features, elements, components, and/or combinations thereof are present. Moreover, when an expression such as "at least one of" appears after the list of listed features, the entire listed features are modified instead of the individual elements in the list. Further, when describing an embodiment of the present application, "may" is used to mean "one or more embodiments of the present application." Also, the term "exemplary" is intended to mean an example or an illustration.

All terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. It should also be understood that terms (such as terms defined in commonly used dictionaries) should be interpreted as having meaning consistent with their meaning in the context of the related art, and will not be interpreted in an idealized or overly formal sense unless This is clearly defined in this article.

It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings.

The features, principles, and other aspects of the present application are described in detail below.

The optical imaging lens according to an exemplary embodiment of the present application may include, for example, eight lenses having powers, that is, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a Seven lenses and eighth lens. The eight lenses are sequentially arranged from the object side to the image side along the optical axis.

In an exemplary embodiment, the image side surface of the second lens is a concave surface; the image side surface of the fifth lens is a convex surface; the object side surface of the sixth lens is a concave surface and the image side surface is a convex surface; and the object side surface of the seventh lens is a convex surface and a side surface It is a concave surface; and the power of the eighth lens is a negative power.

In an exemplary embodiment, the shape of each lens may be further defined as follows: the object side of the first lens is convex and the image side is concave; the object side of the second lens is convex; the image side of the third lens is concave; / or the object side of the eighth lens is convex and the image side is concave.

In an exemplary embodiment, the image height of the image side of the eighth lens at the maximum effective aperture SAG82 and the center thickness CT8 of the eighth lens may satisfy the following relationship: -3.0<SAG82/CT8<-1.0, more specifically, -2.44 ≤SAG82/CT8≤-1.66. By adjusting the relationship between the vector height and the thickness of the lens, the chief ray angle of the optical imaging lens can be adjusted, thereby effectively improving the relative brightness of the optical imaging lens and improving the image surface sharpness.

In an exemplary embodiment, the center thickness CT3 of the third lens and the center thickness CT4 of the fourth lens may satisfy the following relationship: 0.5≤CT3/CT4≤1.0, more specifically, 0.68≤CT3/CT4≤1.0. By properly distributing the center thicknesses of the third lens and the fourth lens, the balance of the optical imaging lens against the coma can be improved.

In an exemplary embodiment, the on-axis distance TTL of the object side center of the first lens to the imaging surface of the optical imaging lens and the semi-diagonal length ImgH of the effective pixel area on the imaging surface may satisfy the following relationship: TTL/ImgH ≤ 1.6. By reasonably controlling the ratio of TTL and ImgH, the size of the optical imaging lens can be effectively compressed, thereby ensuring the ultra-thin characteristics of the lens, thereby meeting the demand for miniaturization of the imaging device.

In an exemplary embodiment, the effective focal length f8 of the eighth lens and the center thickness CT8 of the eighth lens may satisfy the following relationship: 9.0<|f8/CT8|<13.0, more specifically, 10.03≤|f8/CT8|≤12.10 . By reasonably selecting the ratio of the effective focal length of the eighth lens to the center thickness of the eighth lens, the size of the rear end of the optical imaging lens can be effectively compressed, thereby facilitating miniaturization.

In one embodiment, the effective focal length f of the optical imaging lens and the entrance pupil diameter EPD of the optical imaging lens may satisfy the following relationship: f/EPD ≤ 2.0, more specifically f/EPD ≤ 1.97. By configuring a smaller F number, the amount of light passing through can be increased, and the optical imaging lens has a large aperture advantage, thereby enhancing the imaging effect in a dark environment while reducing the aberration of the edge field of view.

In one embodiment, the effective focal length f of the optical imaging lens and the radius of curvature R1 of the object side of the first lens may satisfy the following relationship: 2.0 < f / R1 < 2.5, more specifically, 2.14 ≤ f / R1 ≤ 2.26. By properly setting the radius of curvature of the first lens, the aberration can be easily balanced and the imaging performance of the optical imaging lens can be improved.

In one embodiment, the radius of curvature R15 of the object side surface of the eighth lens and the curvature radius R16 of the image side surface of the eighth lens may satisfy the following relationship: 1.0<(R15+R16)/(R15-R16)<2.0, more specific Ground, 1.41 ≤ (R15 + R16) / (R15-R16) ≤ 1.46. By reasonably setting the radius of curvature of the side surface and the image side of the eighth lens, the optical imaging lens can better match the chief ray angle of the photosensitive chip located at the rear end of the optical imaging lens.

In one embodiment, the effective focal length f8 of the eighth lens and the radius of curvature R16 of the image side of the eighth lens may satisfy the following relationship: -3.0 < f8 / R16 < -2.0, more specifically, -2.33 ≤ f8 / R16 ≤ -2.27. By properly setting the radius of curvature of the eighth lens, the optical imaging lens can have a better balance of astigmatism.

In one embodiment, the effective focal length f of the optical imaging lens and the effective focal length f1 of the first lens and the effective focal length f2 of the second lens may satisfy the following relationship: 0.5<|f/f1|+|f/f2|<1.5, More specifically, 0.84 ≤ |f / f1 | + | f / f2 | ≤ 1.39. By properly distributing the effective focal lengths of the first lens and the second lens, the deflection angle of the light can be reduced, thereby reducing the sensitivity of the optical imaging lens.

In one embodiment, the effective focal length f of the optical imaging lens and the effective focal length f8 of the eighth lens may satisfy the following relationship: 1.0<|f/f8|<1.5, more specifically, 1.05≤|f/f8|≤1.19. By reasonably selecting the effective focal length of the eighth lens, the optical imaging lens can have a better ability to balance field curvature.

In one embodiment, the air spacing T45 of the fourth lens and the fifth lens on the optical axis and the air spacing T67 of the sixth lens and the seventh lens on the optical axis may satisfy the following relationship: 0.5<T45/T67<1.5, More specifically, 0.79 ≤ T45 / T67 ≤ 1.35. By properly controlling the ratio of the air spacing of the fourth lens and the fifth lens on the optical axis to the air spacing of the sixth lens and the seventh lens on the optical axis, the optical imaging lens can have better balanced dispersion and distortion. Ability.

In one embodiment, the effective focal length f of the optical imaging lens and the radius of curvature R16 of the image side of the eighth lens may satisfy the following relationship: 2.0 < f / R16 < 3.0, more specifically, 2.45 ≤ f / R16 ≤ 2.72. By properly setting the relationship between the optical imaging lens and the radius of curvature of the image side of the eighth lens, the optical imaging lens can be easily matched with the commonly used photosensitive chip.

In one embodiment, the center thickness CT4 of the fourth lens and the air spacing T45 of the fourth lens and the fifth lens on the optical axis may satisfy the following relationship: 2.5<CT4/T45<5.5, more specifically, 2.96≤CT4/ T45 ≤ 5.22. By reasonably controlling the ratio between the center thickness of the fourth lens and the air spacing of the fourth lens and the fifth lens on the optical axis, the optical imaging lens can have a better ability to balance field curvature and dispersion.

In an exemplary embodiment, the optical imaging lens may further include at least one aperture to enhance the imaging quality of the lens. For example, the diaphragm can be disposed at the first lens.

Alternatively, the above optical imaging lens may further include a filter for correcting the color deviation and/or a cover glass for protecting the photosensitive element on the imaging surface.

The optical imaging lens according to the above embodiment of the present application may employ a plurality of lenses, such as the eight sheets described above. By properly distributing the power of each lens, the surface shape, the center thickness of each lens, and the on-axis spacing between the lenses, the volume of the lens can be effectively reduced, the sensitivity of the lens can be reduced, and the processability of the lens can be improved. The optical imaging lens is made more advantageous for production processing and can be applied to portable electronic products. At the same time, the optical imaging lens of the above configuration has advantages such as ultra-thinness, miniaturization, large aperture, and high image quality.

In an embodiment of the present application, at least one of the mirror faces of each lens is an aspherical mirror. The aspherical lens is characterized by a continuous change in curvature from the center of the lens to the periphery of the lens. Unlike a spherical lens having a constant curvature from the center of the lens to the periphery of the lens, the aspherical lens has better curvature radius characteristics, and has the advantages of improving distortion and improving astigmatic aberration. With an aspherical lens, the aberrations that occur during imaging can be eliminated as much as possible, improving image quality.

However, those skilled in the art will appreciate that the various results and advantages described in this specification can be obtained without varying the number of lenses that make up the optical imaging lens without departing from the technical solutions claimed herein. For example, although eight lenses have been described as an example in the embodiment, the optical imaging lens is not limited to including eight lenses. The optical imaging lens can also include other numbers of lenses if desired.

A specific embodiment of an optical imaging lens applicable to the above embodiment will be further described below with reference to the accompanying drawings.

Example 1

An optical imaging lens according to Embodiment 1 of the present application will be described below with reference to FIGS. 1 through 2D. FIG. 1 is a block diagram showing the structure of an optical imaging lens according to Embodiment 1 of the present application.

As shown in FIG. 1, an optical imaging lens according to an exemplary embodiment of the present application sequentially includes an aperture STO, a first lens E1, a second lens E2, and a third lens E3, along the optical axis from the object side to the image side. Four lenses E4, fifth lens E5, sixth lens E6, seventh lens E7, eighth lens E8, filter E9, and imaging surface S19.

The first lens E1 has a positive refractive power, and the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface. The second lens E2 has a positive refractive power, the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface. The third lens E3 has a negative refractive power, the object side surface S5 is a convex surface, and the image side surface S6 is a concave surface. The fourth lens E4 has a negative refractive power, the object side surface S7 is a convex surface, and the image side surface S8 is a concave surface. The fifth lens E5 has a positive refractive power, and the object side surface S9 is a convex surface, and the image side surface S10 is a convex surface. The sixth lens E6 has a negative refractive power, the object side surface S11 is a concave surface, and the image side surface S12 is a convex surface. The seventh lens E7 has a positive refractive power, and the object side surface S13 is a convex surface, and the image side surface S14 is a concave surface. The eighth lens E8 has a negative refractive power, the object side surface S15 is a convex surface, and the image side surface S16 is a concave surface. The filter E9 has an object side surface S17 and an image side surface S18. Light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging plane S19.

Table 1 shows the surface type, radius of curvature, thickness, material, and conical coefficient of each lens of the optical imaging lens of Example 1, in which the unit of curvature radius and thickness are all millimeters (mm).

Table 1

As is clear from Table 1, the object side surface and the image side surface of any one of the first lens E1 to the eighth lens E8 are aspherical. In this embodiment, the face shape x of each aspherical lens can be defined by using, but not limited to, the following aspherical formula:

Where x is the distance of the aspherical surface at height h from the optical axis, and the distance from the aspherical vertex is high; c is the abaxial curvature of the aspherical surface, c=1/R (ie, the paraxial curvature c is the above table) 1 is the reciprocal of the radius of curvature R; k is the conic coefficient (given in Table 1); Ai is the correction coefficient of the a-th order of the aspherical surface. Table 2 below gives the higher order coefficient A ₄ , A ₆ , A ₈ , A ₁₀ , A ₁₂ , A ₁₄ , A ₁₆ , A ₁₈ and A _{20 which} can be used for each aspherical mirror surface S1-S16 in the embodiment 1. .

Face number	A4	A6	A8	A10	A12	A14	A16	A18	A20
S1	2.8080E-02	1.7538E-01	-8.9201E-01	2.6736E+00	-4.9491E+00	5.6958E+00	-3.9499E+00	1.5078E+00	-2.4424E-01
S2	-5.1100E-03	4.0171E-01	-2.2500E+00	8.0926E+00	-1.8187E+01	2.5532E+01	-2.1632E+01	1.0130E+01	-2.0302E+00
S3	3.4400E-04	5.6989E-01	-3.6040E+00	1.4163E+01	-3.4544E+01	5.2492E+01	-4.8340E+01	2.4768E+01	-5.4465E+00
S4	-2.2235E-01	6.8737E-01	-2.0866E+00	4.9727E+00	-8.5351E+00	9.4490E+00	-5.7924E+00	1.4444E+00	0.0000E+00
S5	-2.2282E-01	7.9459E-01	-2.0260E+00	3.9877E+00	-5.2209E+00	3.4181E+00	7.6302E-01	-2.6398E+00	1.1256E+00

S6	3.0429E-02	2.9897E-02	8.9154E-01	-5.0119E+00	1.4563E+01	-2.5435E+01	2.7134E+01	-1.6263E+01	4.1713E+00
S7	-1.5898E-01	6.2990E-01	-3.4397E+00	1.0720E+01	-2.1079E+01	2.4607E+01	-1.5455E+01	4.2388E+00	-2.0739E-01
S8	-1.0621E-01	-2.4317E-01	2.4996E+00	-1.3041E+01	3.8159E+01	-6.7086E+01	6.9311E+01	-3.8211E+01	8.5769E+00
S9	-1.6076E-01	1.9863E-02	2.2050E-01	-3.2692E+00	1.4139E+01	-2.9966E+01	3.3916E+01	-1.9396E+01	4.3528E+00
S10	-1.0078E-01	-1.4140E-02	4.0773E-01	-3.2781E+00	9.5209E+00	-1.3937E+01	1.1185E+01	-4.7180E+00	8.2141E-01
S11	-6.4190E-02	7.5966E-01	-3.2225E+00	6.5255E+00	-7.0077E+00	3.7672E+00	-5.4509E-01	-3.2782E-01	1.0926E-01
S12	-5.2703E-01	1.7306E+00	-4.7684E+00	8.8735E+00	-1.0522E+01	7.8655E+00	-3.5755E+00	8.9902E-01	-9.5640E-02
S13	-4.4540E-02	-2.3088E-01	2.3905E-01	-2.5250E-02	-1.8428E-01	1.8671E-01	-8.6970E-02	2.1227E-02	-2.2000E-03
S14	1.3734E-01	-3.8735E-01	4.2772E-01	-2.9641E-01	1.3463E-01	-4.0040E-02	7.5200E-03	-8.1000E-04	3.7600E-05
S15	-3.3792E-01	1.7051E-01	-1.2000E-02	-2.4710E-02	1.3280E-02	-3.3900E-03	4.8600E-04	-3.8000E-05	1.2200E-06
S16	-2.1093E-01	1.4997E-01	-7.3260E-02	2.3726E-02	-5.1000E-03	7.0100E-04	-5.8000E-05	2.5100E-06	-4.2000E-08

Table 2

Table 3 gives the effective focal lengths f1 to f8 of the lenses in Embodiment 1, the total effective focal length f of the optical imaging lens, and the optical total length TTL of the optical imaging lens (i.e., from the center of the object side S1 of the first lens E1 to imaging) The distance of the face S19 on the optical axis) and the half-diagonal length ImgH of the effective pixel area on the imaging surface S19 of the optical imaging lens.

F1 (mm)	7.94	f(mm)	3.72
F2 (mm)	5.14	TTL (mm)	4.67
F3 (mm)	-8.83	ImgH(mm)	2.93
F4(mm)	-376.06
F5 (mm)	10.28
F6(mm)	-14.91
F7 (mm)	5.35
F8(mm)	-3.55

table 3

In Embodiment 1, the optical imaging lens has the following parameter configuration.

The relationship between the image height of the image side of the eighth lens at the maximum effective aperture and the center thickness CT8 of the eighth lens is: SAG82/CT8=-1.87;

The relationship between the center thickness CT3 of the third lens and the center thickness CT4 of the fourth lens is: CT3/CT4=1.0;

The relationship between the axial distance TTL of the object side surface of the first lens to the imaging surface of the optical imaging lens and the semi-diagonal length ImgH of the effective pixel area on the imaging surface is: TTL/ImgH=1.59;

The relationship between the effective focal length f8 of the eighth lens and the center thickness CT8 of the eighth lens is: |f8/CT8|=10.03;

The relationship between the effective focal length f of the optical imaging lens and the entrance pupil diameter EPD of the optical imaging lens is: f/EPD=1.75;

The relationship between the effective focal length f of the optical imaging lens and the radius of curvature R1 of the object side of the first lens is: f / R1 = 2.14;

The relationship between the radius of curvature R15 of the object side of the eighth lens and the radius of curvature R16 of the image side of the eighth lens is: (R15 + R16) / (R15 - R16) = 1.46;

The relationship between the effective focal length f8 of the eighth lens and the radius of curvature R16 of the image side of the eighth lens is: f8/R16=-2.33;

The relationship between the effective focal length f of the optical imaging lens and the effective focal length f1 of the first lens and the effective focal length f2 of the second lens is: |f/f1|+|f/f2|=1.19;

The relationship between the effective focal length f of the optical imaging lens and the effective focal length f8 of the eighth lens is: |f/f8|=1.05;

The relationship between the air spacing T45 of the fourth lens and the fifth lens on the optical axis and the air spacing T67 of the sixth lens and the seventh lens on the optical axis is: T45/T67=1.03;

The relationship between the effective focal length f of the optical imaging lens and the radius of curvature R16 of the image side of the eighth lens is: f/R16 = 2.45;

The relationship between the center thickness CT4 of the fourth lens and the air interval T45 of the fourth lens and the fifth lens on the optical axis is: CT4/T45=3.88.

In addition, FIG. 2A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 1, which indicates that light of different wavelengths is deviated from a focus point after the lens. 2B shows an astigmatism curve of the optical imaging lens of Embodiment 1, which shows meridional field curvature and sagittal image plane curvature. 2C shows a distortion curve of the optical imaging lens of Embodiment 1, which shows distortion magnitude values in the case of different viewing angles. 2D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 1, which indicates a deviation of different image heights on the imaging plane after the light passes through the lens. 2A to 2D, the optical imaging lens given in Embodiment 1 can achieve good imaging quality.

Example 2

An optical imaging lens according to Embodiment 2 of the present application will be described below with reference to FIGS. 3 to 4D. In the present embodiment and the following embodiments, a description similar to Embodiment 1 will be omitted for the sake of brevity. FIG. 3 is a block diagram showing the structure of an optical imaging lens according to Embodiment 2 of the present application.

As shown in FIG. 3, an optical imaging lens according to an exemplary embodiment of the present application sequentially includes an aperture STO, a first lens E1, a second lens E2, and a third lens E3, along the optical axis from the object side to the image side. Four lenses E4, fifth lens E5, sixth lens E6, seventh lens E7, eighth lens E8, filter E9, and imaging surface S19.

The first lens E1 has a positive refractive power, and the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface. The second lens E2 has a positive refractive power, the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface. The third lens E3 has a negative refractive power, the object side surface S5 is a convex surface, and the image side surface S6 is a concave surface. The fourth lens E4 has a positive refractive power, the object side surface S7 is a concave surface, and the image side surface S8 is a convex surface. The fifth lens E5 has a positive refractive power, and the object side surface S9 is a concave surface, and the image side surface S10 is a convex surface. The sixth lens E6 has a negative refractive power, the object side surface S11 is a concave surface, and the image side surface S12 is a convex surface. The seventh lens E7 has a positive refractive power, and the object side surface S13 is a convex surface, and the image side surface S14 is a concave surface. The eighth lens E8 has a negative refractive power, the object side surface S15 is a convex surface, and the image side surface S16 is a concave surface. The filter E9 has an object side surface S17 and an image side surface S18. Light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging plane S19.

Table 4 shows the surface type, the radius of curvature, the thickness, the material, and the conical coefficient of each lens of the optical imaging lens of Example 2, wherein the units of the radius of curvature and the thickness are each mm (mm).

Table 4

Table 5 shows the high order coefficient which can be used for each aspherical mirror in Embodiment 2, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1.

Face number	A4	A6	A8	A10	A12	A14	A16	A18	A20
S1	4.3534E-02	4.2277E-02	-2.2690E-01	6.7125E-01	-1.1159E+00	1.0085E+00	-3.7757E-01	-5.2710E-02	5.5807E-02
S2	-2.2000E-04	1.3229E-01	-4.0208E-01	1.3328E+00	-2.7988E+00	3.5092E+00	-2.3764E+00	6.9967E-01	-4.2700E-02
S3	1.1288E-02	2.0563E-01	-9.6058E-01	3.8897E+00	-1.0103E+01	1.6389E+01	-1.6149E+01	8.9294E+00	-2.1541E+00
S4	-2.3015E-01	6.4445E-01	-1.5805E+00	3.0774E+00	-4.8829E+00	5.5910E+00	-3.6694E+00	9.6267E-01	0.0000E+00
S5	-2.2370E-01	7.2399E-01	-1.4552E+00	2.0052E+00	-1.7753E+00	6.6389E-01	1.0966E+00	-1.8420E+00	7.8655E-01
S6	2.8435E-02	1.2358E-01	2.1104E-01	-2.2323E+00	7.4181E+00	-1.3869E+01	1.5915E+01	-1.0348E+01	2.8688E+00
S7	-1.1138E-01	1.7692E-01	-8.7802E-01	1.5693E+00	-3.8020E-02	-6.7081E+00	1.3906E+01	-1.1513E+01	3.4473E+00
S8	-1.0310E-01	-2.5883E-01	2.5084E+00	-1.3049E+01	3.8497E+01	-6.8482E+01	7.1774E+01	-4.0245E+01	9.2233E+00
S9	-1.6255E-01	8.3330E-03	3.1663E-01	-3.6673E+00	1.5008E+01	-3.1053E+01	3.4744E+01	-1.9822E+01	4.4816E+00
S10	-1.1131E-01	1.3004E-01	-5.2292E-01	7.1665E-02	2.3910E+00	-4.7103E+00	4.0956E+00	-1.7591E+00	3.0668E-01
S11	-4.6920E-02	5.5989E-01	-2.2326E+00	3.9962E+00	-3.5484E+00	1.2529E+00	3.1269E-01	-3.8991E-01	8.8487E-02
S12	-5.3115E-01	1.6881E+00	-4.3243E+00	7.5353E+00	-8.5451E+00	6.2246E+00	-2.7936E+00	6.9902E-01	-7.4340E-02
S13	-9.6740E-02	-1.6380E-02	-2.1876E-01	5.8922E-01	-7.2918E-01	5.0549E-01	-2.0560E-01	4.6658E-02	-4.5800E-03
S14	1.4519E-01	-4.1039E-01	4.6031E-01	-3.2310E-01	1.4810E-01	-4.4310E-02	8.3590E-03	-9.0000E-04	4.2100E-05
S15	-3.4510E-01	1.7643E-01	-1.3290E-02	-2.5440E-02	1.3892E-02	-3.5900E-03	5.2100E-04	-4.1000E-05	1.3400E-06
S16	-2.2402E-01	1.6222E-01	-7.9580E-02	2.5391E-02	-5.1500E-03	6.0900E-04	-3.1000E-05	-5.3000E-07	9.0600E-08

table 5

Table 6 gives the effective focal lengths f1 to f8 of the lenses in Embodiment 2, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the semi-diagonal angle of the effective pixel area on the imaging surface S19 of the optical imaging lens. Line length ImgH.

F1 (mm)	8.15	f(mm)	3.84
F2 (mm)	4.79	TTL (mm)	4.66
F3 (mm)	-8.20	ImgH(mm)	2.93
F4(mm)	2042.32
F5 (mm)	11.47

F6(mm)	-14.28
F7 (mm)	5.28
F8(mm)	-3.42

Table 6

4A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 2, which shows that light of different wavelengths is deviated from a focus point after the lens. 4B shows an astigmatism curve of the optical imaging lens of Embodiment 2, which shows meridional field curvature and sagittal image plane curvature. 4C shows a distortion curve of the optical imaging lens of Embodiment 2, which shows distortion magnitude values in the case of different viewing angles. 4D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 2, which shows deviations of different image heights on the imaging plane after the light passes through the lens. 4A to 4D, the optical imaging lens given in Embodiment 2 can achieve good imaging quality.

Example 3

An optical imaging lens according to Embodiment 3 of the present application is described below with reference to FIGS. 5 to 6D. FIG. 5 is a block diagram showing the structure of an optical imaging lens according to Embodiment 3 of the present application.

As shown in FIG. 5, an optical imaging lens according to an exemplary embodiment of the present application sequentially includes an aperture STO, a first lens E1, a second lens E2, and a third lens E3, along the optical axis from the object side to the image side. Four lenses E4, fifth lens E5, sixth lens E6, seventh lens E7, eighth lens E8, filter E9, and imaging surface S19.

The first lens E1 has a positive refractive power, and the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface. The second lens E2 has a positive refractive power, the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface. The third lens E3 has a negative refractive power, the object side surface S5 is a convex surface, and the image side surface S6 is a concave surface. The fourth lens E4 has a positive refractive power, the object side surface S7 is a convex surface, and the image side surface S8 is a convex surface. The fifth lens E5 has a positive refractive power, and the object side surface S9 is a concave surface, and the image side surface S10 is a convex surface. The sixth lens E6 has a negative refractive power, the object side surface S11 is a concave surface, and the image side surface S12 is a convex surface. The seventh lens E7 has a positive refractive power, and the object side surface S13 is a convex surface, and the image side surface S14 is a concave surface. The eighth lens E8 has a negative refractive power, the object side surface S15 is a convex surface, and the image side surface S16 is a concave surface. The filter E9 has an object side surface S17 and an image side surface S18. Light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging plane S19.

Table 7 shows the surface type, radius of curvature, thickness, material, and conical coefficient of each lens of the optical imaging lens of Example 3, wherein the units of the radius of curvature and the thickness are all in millimeters (mm).

Table 7

Table 8 shows the high order term coefficients which can be used for the respective aspherical mirrors in Embodiment 3, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1.

Face number	A4	A6	A8	A10	A12	A14	A16	A18	A20
S1	4.1297E-02	5.2990E-02	-2.9216E-01	8.7069E-01	-1.5024E+00	1.5000E+00	-7.8340E-01	1.5028E-01	9.2560E-03
S2	3.4950E-03	1.4122E-01	-6.3099E-01	2.3022E+00	-5.1062E+00	6.9146E+00	-5.4426E+00	2.2573E+00	-3.8669E-01
S3	1.5037E-02	2.4388E-01	-1.4458E+00	6.0225E+00	-1.5475E+01	2.4640E+01	-2.3713E+01	1.2717E+01	-2.9456E+00
S4	-2.2826E-01	6.8205E-01	-1.9699E+00	4.6002E+00	-8.0114E+00	9.1618E+00	-5.8146E+00	1.4951E+00	0.0000E+00
S5	-2.1947E-01	7.0488E-01	-1.4723E+00	2.1422E+00	-1.5744E+00	-1.0267E+00	4.1438E+00	-4.1735E+00	1.4541E+00
S6	2.8114E-02	1.2854E-01	9.9380E-02	-1.6343E+00	5.8950E+00	-1.1769E+01	1.4229E+01	-9.5790E+00	2.7120E+00
S7	-1.1766E-01	3.0316E-01	-1.7333E+00	5.3310E+00	-1.0519E+01	1.2095E+01	-7.0188E+00	1.4153E+00	1.0839E-01
S8	-9.3060E-02	-2.4411E-01	2.3025E+00	-1.1730E+01	3.3826E+01	-5.8778E+01	6.0204E+01	-3.3037E+01	7.4321E+00
S9	-1.5886E-01	1.0815E-02	2.9882E-01	-3.4525E+00	1.4017E+01	-2.8755E+01	3.1915E+01	-1.8094E+01	4.0830E+00
S10	-1.1881E-01	1.5737E-01	-4.7580E-01	-4.7828E-01	3.9156E+00	-6.8673E+00	5.7987E+00	-2.4675E+00	4.2634E-01
S11	-5.2340E-02	6.4651E-01	-2.5722E+00	4.5986E+00	-4.0472E+00	1.3257E+00	4.8986E-01	-5.0804E-01	1.1098E-01
S12	-5.4259E-01	1.7828E+00	-4.6677E+00	8.2204E+00	-9.3549E+00	6.8050E+00	-3.0405E+00	7.5623E-01	-7.9890E-02

S13	-8.3680E-02	-6.2420E-02	-1.2095E-01	4.5680E-01	-6.1281E-01	4.4103E-01	-1.8412E-01	4.2734E-02	-4.2800E-03
S14	1.3876E-01	-3.8347E-01	4.1914E-01	-2.8637E-01	1.2767E-01	-3.7140E-02	6.8130E-03	-7.1000E-04	3.2500E-05
S15	-3.3966E-01	1.7358E-01	-1.5510E-02	-2.2280E-02	1.2265E-02	-3.1400E-03	4.4800E-04	-3.5000E-05	1.1200E-06
S16	-2.1433E-01	1.4573E-01	-6.3780E-02	1.5888E-02	-1.5000E-03	-2.8000E-04	1.0100E-04	-1.2000E-05	4.8200E-07

Table 8

Table 9 gives the effective focal lengths f1 to f8 of the lenses in Embodiment 3, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the semi-diagonal angle of the effective pixel area on the imaging surface S19 of the optical imaging lens. Line length ImgH.

F1 (mm)	7.95	f(mm)	3.82
F2 (mm)	4.96	TTL (mm)	4.67
F3 (mm)	-8.15	ImgH(mm)	2.93
F4(mm)	51.92
F5 (mm)	14.51
F6(mm)	-16.25
F7 (mm)	5.37
F8(mm)	-3.45

Table 9

Fig. 6A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 3, which shows that light of different wavelengths is deviated from a focus point after the lens. Fig. 6B shows an astigmatism curve of the optical imaging lens of Embodiment 3, which shows meridional field curvature and sagittal image plane curvature. Fig. 6C shows a distortion curve of the optical imaging lens of Embodiment 3, which shows distortion magnitude values in the case of different viewing angles. Fig. 6D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 3, which shows deviations of different image heights on the imaging plane after the light passes through the lens. 6A to 6D, the optical imaging lens given in Embodiment 3 can achieve good imaging quality.

Example 4

An optical imaging lens according to Embodiment 4 of the present application is described below with reference to FIGS. 7 to 8D. FIG. 7 is a block diagram showing the structure of an optical imaging lens according to Embodiment 4 of the present application.

As shown in FIG. 7 , an optical imaging lens according to an exemplary embodiment of the present application sequentially includes an aperture STO, a first lens E1, a second lens E2, and a third lens E3, along the optical axis from the object side to the image side. Four lenses E4, fifth lens E5, sixth lens E6, seventh lens E7, eighth lens E8, filter E9, and imaging surface S19.

The first lens E1 has a negative refractive power, the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface. The second lens E2 has a positive refractive power, the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface. The third lens E3 has a negative refractive power, the object side surface S5 is a convex surface, and the image side surface S6 is a concave surface. The fourth lens E4 has a negative refractive power, the object side surface S7 is a convex surface, and the image side surface S8 is a concave surface. The fifth lens E5 has a positive refractive power, and the object side surface S9 is a concave surface, and the image side surface S10 is a convex surface. The sixth lens E6 has a negative refractive power, the object side surface S11 is a concave surface, and the image side surface S12 is a convex surface. The seventh lens E7 has a positive refractive power, and the object side surface S13 is a convex surface, and the image side surface S14 is a concave surface. The eighth lens E8 has a negative refractive power, the object side surface S15 is a convex surface, and the image side surface S16 is a concave surface. The filter E9 has an object side surface S17 and an image side surface S18. Light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging plane S19.

Table 10 shows the surface type, radius of curvature, thickness, material, and conical coefficient of each lens of the optical imaging lens of Example 4, in which the unit of curvature radius and thickness are both millimeters (mm).

Table 10

Table 11 shows the high order coefficient which can be used for each aspherical mirror in Embodiment 4, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1.

Face number	A4	A6	A8	A10	A12	A14	A16	A18	A20
S1	2.7724E-02	1.0818E-01	-4.7639E-01	1.3869E+00	-2.4533E+00	2.6549E+00	-1.6765E+00	5.4708E-01	-6.8360E-02
S2	-4.0170E-02	3.3741E-01	-1.4994E+00	5.0622E+00	-1.0834E+01	1.4637E+01	-1.2075E+01	5.5685E+00	-1.1125E+00
S3	-1.1450E-02	3.1519E-01	-1.6058E+00	5.9578E+00	-1.4004E+01	2.0750E+01	-1.8867E+01	9.6619E+00	-2.1434E+00
S4	-2.0737E-01	5.3065E-01	-1.1589E+00	2.0096E+00	-2.7707E+00	2.6107E+00	-1.3082E+00	2.2274E-01	0.0000E+00
S5	-2.0161E-01	5.4451E-01	-6.9391E-01	6.1656E-02	1.7152E+00	-3.8417E+00	4.6689E+00	-3.1252E+00	8.5136E-01
S6	4.4025E-02	-1.2000E-04	6.4519E-01	-3.1330E+00	8.6059E+00	-1.4899E+01	1.6249E+01	-1.0002E+01	2.5912E+00
S7	-9.7160E-02	2.9038E-02	-1.6464E-01	-8.1182E-01	4.9623E+00	-1.2814E+01	1.7375E+01	-1.1607E+01	2.9716E+00
S8	-9.6940E-02	-3.0616E-01	2.5645E+00	-1.2957E+01	3.7908E+01	-6.7175E+01	7.0132E+01	-3.9109E+01	8.8876E+00
S9	-1.7932E-01	3.7019E-02	3.0717E-01	-3.8761E+00	1.5798E+01	-3.2519E+01	3.6344E+01	-2.0781E+01	4.7136E+00
S10	-1.1549E-01	6.3795E-02	-1.0341E-01	-1.4017E+00	5.3525E+00	-8.3864E+00	6.9306E+00	-3.0050E+00	5.4278E-01
S11	1.1785E-02	2.0083E-01	-1.0658E+00	1.4547E+00	1.0699E-01	-2.1213E+00	2.2304E+00	-1.0006E+00	1.7171E-01
S12	-4.8928E-01	1.4960E+00	-3.6878E+00	6.2310E+00	-6.8722E+00	4.8886E+00	-2.1516E+00	5.2966E-01	-5.5510E-02
S13	-1.3840E-01	1.2479E-01	-3.9158E-01	7.2070E-01	-8.1046E-01	5.5293E-01	-2.2631E-01	5.1479E-02	-4.9900E-03
S14	1.1369E-01	-3.0636E-01	3.3745E-01	-2.3638E-01	1.0713E-01	-3.1190E-02	5.6410E-03	-5.8000E-04	2.5300E-05
S15	-3.2640E-01	1.6337E-01	-1.5730E-02	-1.8270E-02	9.8580E-03	-2.4400E-03	3.3600E-04	-2.5000E-05	7.8500E-07
S16	-2.1435E-01	1.4374E-01	-6.4060E-02	1.6323E-02	-1.2800E-03	-4.9000E-04	1.5600E-04	-1.8000E-05	7.6600E-07

Table 11

Table 12 gives the effective focal lengths f1 to f8 of the lenses in Embodiment 4, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the semi-diagonal angle of the effective pixel area on the imaging surface S19 of the optical imaging lens. Line length ImgH.

F1 (mm)	-500.04	f(mm)	3.76
F2 (mm)	3.07	TTL (mm)	4.68
F3 (mm)	-8.22	ImgH(mm)	2.93
F4(mm)	-573.64
F5 (mm)	10.19
F6(mm)	-9.78
F7 (mm)	4.34
F8(mm)	-3.46

Table 12

Fig. 8A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 4, which shows that light of different wavelengths is deviated from the focus point after the lens. Fig. 8B shows an astigmatism curve of the optical imaging lens of Embodiment 4, which shows meridional field curvature and sagittal image plane curvature. Fig. 8C shows a distortion curve of the optical imaging lens of Embodiment 4, which shows distortion magnitude values in the case of different viewing angles. Fig. 8D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 4, which shows deviations of different image heights on the imaging plane after the light passes through the lens. 8A to 8D, the optical imaging lens given in Embodiment 4 can achieve good imaging quality.

Example 5

An optical imaging lens according to Embodiment 5 of the present application is described below with reference to FIGS. 9 to 10D. FIG. 9 is a block diagram showing the structure of an optical imaging lens according to Embodiment 5 of the present application.

As shown in FIG. 9, an optical imaging lens according to an exemplary embodiment of the present application includes, in order from an object side to an image side along an optical axis, a stop STO, a first lens E1, a second lens E2, and a third lens E3, Four lenses E4, fifth lens E5, sixth lens E6, seventh lens E7, eighth lens E8, filter E9, and imaging surface S19.

The first lens E1 has a positive refractive power, and the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface. The second lens E2 has a negative refractive power, the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface. The third lens E3 has a negative refractive power, the object side surface S5 is a convex surface, and the image side surface S6 is a concave surface. The fourth lens E4 has a negative refractive power, the object side surface S7 is a convex surface, and the image side surface S8 is a concave surface. The fifth lens E5 has a positive refractive power, and the object side surface S9 is a convex surface, and the image side surface S10 is a convex surface. The sixth lens E6 has a negative refractive power, the object side surface S11 is a concave surface, and the image side surface S12 is a convex surface. The seventh lens E7 has a positive refractive power, and the object side surface S13 is a convex surface, and the image side surface S14 is a concave surface. The eighth lens E8 has a negative refractive power, the object side surface S15 is a convex surface, and the image side surface S16 is a concave surface. The filter E9 has an object side surface S17 and an image side surface S18. Light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging plane S19.

Table 13 shows the surface type, the radius of curvature, the thickness, the material, and the conical coefficient of each lens of the optical imaging lens of Example 5, wherein the units of the radius of curvature and the thickness are all in millimeters (mm).

Table 13

Table 14 shows the high order coefficient which can be used for each aspherical mirror surface in Embodiment 5, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1.

Face number	A4	A6	A8	A10	A12	A14	A16	A18	A20
S1	5.1052E-02	9.8360E-03	-1.4115E-01	5.8677E-01	-1.4400E+00	2.1114E+00	-1.8280E+00	8.7407E-01	-1.8016E-01
S2	3.3773E-02	1.1213E-01	-4.4248E-01	8.9239E-01	-1.4626E+00	2.5628E+00	-3.3520E+00	2.4490E+00	-7.3906E-01
S3	3.5967E-02	3.0498E-01	-1.3091E+00	3.4194E+00	-7.2239E+00	1.2496E+01	-1.4825E+01	1.0034E+01	-2.8729E+00
S4	-2.5524E-01	1.0335E+00	-3.2216E+00	6.0715E+00	-6.5275E+00	3.1596E+00	2.5029E-01	-5.9031E-01	0.0000E+00
S5	-1.8303E-01	6.3890E-01	-1.5449E+00	1.5802E+00	3.0395E+00	-1.2559E+01	1.8001E+01	-1.2272E+01	3.2928E+00
S6	7.2787E-02	-7.1770E-02	6.9181E-01	-3.6649E+00	1.1745E+01	-2.2512E+01	2.5358E+01	-1.5190E+01	3.6812E+00
S7	-9.4520E-02	2.2701E-01	-2.1164E+00	9.0613E+00	-2.5622E+01	4.6321E+01	-5.2422E+01	3.4422E+01	-9.9852E+00
S8	-1.0558E-01	-1.1882E-01	1.2338E+00	-7.4482E+00	2.3760E+01	-4.4327E+01	4.7564E+01	-2.6700E+01	5.9978E+00
S9	-1.7506E-01	-2.1940E-02	6.4012E-01	-4.8478E+00	1.7449E+01	-3.4286E+01	3.7638E+01	-2.1486E+01	4.9364E+00
S10	-1.0530E-01	-4.9010E-02	3.2375E-01	-2.0705E+00	5.8847E+00	-8.7674E+00	7.3635E+00	-3.3288E+00	6.3206E-01
S11	1.2747E-02	9.7299E-02	-6.8703E-01	1.1716E+00	-5.5192E-01	-5.8566E-01	9.0330E-01	-4.5259E-01	8.1757E-02
S12	-4.9254E-01	1.4196E+00	-3.2782E+00	5.2931E+00	-5.6156E+00	3.8295E+00	-1.6060E+00	3.7452E-01	-3.6990E-02
S13	-1.5029E-01	1.6411E-01	-4.6601E-01	8.0789E-01	-8.6366E-01	5.6376E-01	-2.2162E-01	4.8367E-02	-4.4700E-03
S14	1.2704E-01	-3.4806E-01	3.8531E-01	-2.6691E-01	1.1946E-01	-3.4570E-02	6.2760E-03	-6.5000E-04	2.9500E-05
S15	-3.0804E-01	1.4843E-01	-1.0150E-02	-1.9470E-02	1.0046E-02	-2.4700E-03	3.4300E-04	-2.6000E-05	8.1900E-07
S16	-2.1240E-01	1.4404E-01	-6.5430E-02	1.7503E-02	-1.9000E-03	-2.8000E-04	1.1300E-04	-1.3000E-05	5.4300E-07

Table 14

Table 15 gives the effective focal lengths f1 to f8 of the lenses in Embodiment 5, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the semi-diagonal angle of the effective pixel area on the imaging surface S19 of the optical imaging lens. Line length ImgH.

F1 (mm)	3.26	f(mm)	3.82
F2 (mm)	-1077.03	TTL (mm)	4.67
F3 (mm)	-8.26	ImgH(mm)	2.93
F4(mm)	-28.02
F5 (mm)	7.93
F6(mm)	-11.06
F7 (mm)	4.57
F8(mm)	-3.44

Table 15

Fig. 10A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 5, which shows that light of different wavelengths is deviated from a focus point after passing through the lens. Fig. 10B shows an astigmatism curve of the optical imaging lens of Embodiment 5, which shows meridional field curvature and sagittal image plane curvature. Fig. 10C shows a distortion curve of the optical imaging lens of Embodiment 5, which shows the distortion magnitude value in the case of different viewing angles. Fig. 10D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 5, which shows deviations of different image heights on the imaging plane after the light passes through the lens. 10A to 10D, the optical imaging lens given in Embodiment 5 can achieve good imaging quality.

Example 6

An optical imaging lens according to Embodiment 6 of the present application is described below with reference to FIGS. 11 to 12D. Fig. 11 is a view showing the configuration of an optical imaging lens according to Embodiment 6 of the present application.

As shown in FIG. 11 , an optical imaging lens according to an exemplary embodiment of the present application sequentially includes an aperture STO, a first lens E1, a second lens E2, and a third lens E3, along the optical axis from the object side to the image side. Four lenses E4, fifth lens E5, sixth lens E6, seventh lens E7, eighth lens E8, filter E9, and imaging surface S19.

The first lens E1 has a positive refractive power, the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface. The second lens E2 has a positive refractive power, the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface. The third lens E3 has a positive refractive power, and the object side surface S5 is a convex surface, and the image side surface S6 is a concave surface. The fourth lens E4 has a negative refractive power, the object side surface S7 is a concave surface, and the image side surface S8 is a concave surface. The fifth lens E5 has a positive refractive power, and the object side surface S9 is a concave surface, and the image side surface S10 is a convex surface. The sixth lens E6 has a negative refractive power, the object side surface S11 is a concave surface, and the image side surface S12 is a convex surface. The seventh lens E7 has a positive refractive power, and the object side surface S13 is a convex surface, and the image side surface S14 is a concave surface. The eighth lens E8 has a negative refractive power, the object side surface S15 is a convex surface, and the image side surface S16 is a concave surface. The filter E9 has an object side surface S17 and an image side surface S18. Light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging plane S19.

Table 16 shows the surface type, radius of curvature, thickness, material, and conical coefficient of each lens of the optical imaging lens of Example 6, wherein the units of the radius of curvature and the thickness are each mm (mm).

Table 16

Table 17 shows the high order coefficient which can be used for each aspherical mirror surface in Embodiment 6, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1.

Face number	A4	A6	A8	A10	A12	A14	A1	A18	A20
S1	4.0020E-02	8.6649E-02	-5.4595E-01	2.0328E+00	-4.6761E+00	6.6849E+00	-5.7522E+00	2.7232E+00	-5.4602E-01
S2	-3.9100E-02	3.0768E-01	-4.8864E-01	-1.8479E-01	2.7541E+00	-5.7390E+00	5.8518E+00	-3.0308E+00	6.2296E-01
S3	-3.3160E-02	3.3352E-01	-5.5666E-01	4.4390E-01	-1.8191E-01	1.1877E+00	-3.1499E+00	3.1342E+00	-1.1177E+00
S4	-2.1318E-01	3.5130E-01	-4.8778E-01	7.6680E-01	-1.5870E+00	2.2535E+00	-1.5197E+00	3.3521E-01	0.0000E+00
S5	-5.9120E-02	-5.3178E-01	3.4304E+00	-1.0653E+01	2.1712E+01	-3.0529E+01	2.8885E+01	-1.6354E+01	4.0784E+00
S6	3.2972E-02	7.0560E-03	5.3008E-01	-2.1158E+00	5.5536E+00	-1.0562E+01	1.3447E+01	-9.5749E+00	2.8006E+00
S7	-1.0660E-01	1.8921E-01	-4.8617E-01	-1.2693E+00	9.6837E+00	-2.5528E+01	3.4301E+01	-2.2993E+01	6.0706E+00
S8	-1.0436E-01	-2.4479E-01	2.4574E+00	-1.2953E+01	3.8744E+01	-6.9481E+01	7.2857E+01	-4.0659E+01	9.2493E+00
S9	-1.6119E-01	7.7640E-03	3.3316E-01	-3.7233E+00	1.5045E+01	-3.1035E+01	3.4824E+01	-1.9999E+01	4.5643E+00
S10	-1.2321E-01	1.1452E-01	1.1579E-01	-2.9933E+00	9.3870E+00	-1.3951E+01	1.1371E+01	-4.9358E+00	8.9832E-01
S11	-4.3910E-02	4.0787E-01	-1.3705E+00	1.3511E+00	1.2811E+00	-4.1702E+00	3.9840E+00	-1.7646E+00	3.0630E-01
S12	-4.5111E-01	1.2421E+00	-2.8827E+00	4.7740E+00	-5.2404E+00	3.7260E+00	-1.6379E+00	4.0167E-01	-4.1820E-02
S13	-7.7240E-02	-1.6201E-01	2.2436E-01	-1.5889E-01	3.3475E-02	2.3612E-02	-1.9420E-02	6.1670E-03	-7.8000E-04
S14	1.4819E-01	-4.3903E-01	5.2277E-01	-3.9266E-01	1.9262E-01	-6.1430E-02	1.2267E-02	-1.3900E-03	6.7800E-05
S15	-3.9361E-01	2.2717E-01	-3.8140E-02	-1.9050E-02	1.3376E-02	-3.7500E-03	5.7300E-04	-4.7000E-05	1.5900E-06
S16	-2.3305E-01	1.7919E-01	-9.0970E-02	2.9472E-02	-5.7700E-03	5.5600E-04	2.5800E-06	-5.2000E-06	3.1400E-07

Table 17

Table 18 gives the effective focal lengths f1 to f8 of the lenses in Embodiment 6, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the semi-diagonal angle of the effective pixel area on the imaging surface S19 of the optical imaging lens. Line length ImgH.

F1 (mm)	6.95	f(mm)	3.77
F2 (mm)	11.44	TTL (mm)	4.63
F3 (mm)	501.52	ImgH(mm)	2.93
F4(mm)	-96.36
F5 (mm)	6.92
F6(mm)	-7.26
F7 (mm)	4.79
F8(mm)	-3.33

Table 18

Fig. 12A shows an axial chromatic aberration curve of the optical imaging lens of Example 6, which shows that light of different wavelengths is deviated from the focus point after the lens. Fig. 12B shows an astigmatism curve of the optical imaging lens of Example 6, which shows meridional field curvature and sagittal image plane curvature. Fig. 12C shows a distortion curve of the optical imaging lens of Embodiment 6, which shows the distortion magnitude value in the case of different viewing angles. Fig. 12D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 6, which shows the deviation of different image heights on the imaging plane after the light passes through the lens. 12A to 12D, the optical imaging lens given in Embodiment 6 can achieve good imaging quality.

Example 7

An optical imaging lens according to Embodiment 7 of the present application is described below with reference to FIGS. 13 to 14D. Fig. 13 is a view showing the configuration of an optical imaging lens according to Embodiment 7 of the present application.

As shown in FIG. 13 , an optical imaging lens according to an exemplary embodiment of the present application sequentially includes an aperture STO, a first lens E1, a second lens E2, and a third lens E3, along the optical axis from the object side to the image side. Four lenses E4, fifth lens E5, sixth lens E6, seventh lens E7, eighth lens E8, filter E9, and imaging surface S19.

The first lens E1 has a positive refractive power, and the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface. The second lens E2 has a positive refractive power, the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface. The third lens E3 has a negative refractive power, the object side surface S5 is a convex surface, and the image side surface S6 is a concave surface. The fourth lens E4 has a positive refractive power, the object side surface S7 is a convex surface, and the image side surface S8 is a concave surface. The fifth lens E5 has a positive refractive power, and the object side surface S9 is a concave surface, and the image side surface S10 is a convex surface. The sixth lens E6 has a negative refractive power, the object side surface S11 is a concave surface, and the image side surface S12 is a convex surface. The seventh lens E7 has a positive refractive power, and the object side surface S13 is a convex surface, and the image side surface S14 is a concave surface. The eighth lens E8 has a negative refractive power, the object side surface S15 is a convex surface, and the image side surface S16 is a concave surface. The filter E9 has an object side surface S17 and an image side surface S18. Light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging plane S19.

Table 13 shows the surface type, radius of curvature, thickness, material, and conical coefficient of each lens of the optical imaging lens of Example 7, in which the unit of curvature radius and thickness are both millimeters (mm).

Table 19

Table 20 shows the high order term coefficients which can be used for the respective aspherical mirrors in Embodiment 7, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1.

Face number	A4	A6	A8	A10	A12	A14	A16	A18	A20
S1	4.5118E-02	2.3362E-02	-1.1335E-01	2.9744E-01	-3.6218E-01	5.5780E-02	3.6469E-01	-3.8127E-01	1.1945E-01
S2	7.7700E-04	1.2126E-01	-3.4222E-01	1.0813E+00	-2.2040E+00	2.7423E+00	-1.8478E+00	5.2772E-01	-2.6010E-02
S3	1.4957E-02	1.7922E-01	-8.3498E-01	3.4306E+00	-9.0899E+00	1.5116E+01	-1.5287E+01	8.6675E+00	-2.1382E+00
S4	-2.2675E-01	6.1216E-01	-1.4475E+00	2.7197E+00	-4.1875E+00	4.6918E+00	-3.0077E+00	7.5824E-01	0.0000E+00
S5	-2.2088E-01	6.5793E-01	-1.0472E+00	5.6517E-01	1.5541E+00	-4.3868E+00	5.8392E+00	-4.3085E+00	1.3256E+00
S6	2.9141E-02	1.3291E-01	1.1009E-01	-1.6047E+00	5.3617E+00	-9.9723E+00	1.1527E+01	-7.6085E+00	2.1406E+00
S7	-1.0993E-01	1.9496E-01	-1.1244E+00	3.1423E+00	-5.5099E+00	4.6115E+00	1.5892E-01	-2.5571E+00	1.0482E+00
S8	-9.8100E-02	-2.5788E-01	2.4212E+00	-1.2400E+01	3.6165E+01	-6.3712E+01	6.6229E+01	-3.6890E+01	8.4157E+00
S9	-1.6230E-01	8.7800E-03	3.3008E-01	-3.7683E+00	1.5344E+01	-3.1697E+01	3.5484E+01	-2.0299E+01	4.6174E+00
S10	-1.2679E-01	2.6043E-01	-1.1811E+00	1.9810E+00	-9.1186E-01	-1.2739E+00	2.0152E+00	-1.0929E+00	2.2057E-01
S11	-4.9690E-02	6.4686E-01	-2.7476E+00	5.4909E+00	-6.0709E+00	3.8321E+00	-1.2595E+00	1.3647E-01	1.3757E-02
S12	-5.3781E-01	1.7616E+00	-4.6008E+00	8.0905E+00	-9.2180E+00	6.7287E+00	-3.0215E+00	7.5587E-01	-8.0350E-02
S13	-1.0696E-01	2.2639E-02	-3.2673E-01	7.7675E-01	-9.3713E-01	6.5270E-01	-2.7009E-01	6.2541E-02	-6.2500E-03
S14	1.4480E-01	-4.0781E-01	4.5626E-01	-3.1955E-01	1.4625E-01	-4.3740E-02	8.2570E-03	-8.9000E-04	4.1800E-05
S15	-3.4488E-01	1.7636E-01	-1.3550E-02	-2.5230E-02	1.3831E-02	-3.5900E-03	5.2200E-04	-4.1000E-05	1.3600E-06
S16	-2.2168E-01	1.5606E-01	-7.2870E-02	2.1225E-02	-3.5300E-03	2.0700E-04	2.9500E-05	-5.7000E-06	2.8000E-07

Table 20

Table 21 gives the effective focal lengths f1 to f8 of the lenses in Embodiment 7, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the half diagonal of the effective pixel area on the imaging surface S19 of the optical imaging lens. Line length ImgH.

F1 (mm)

9.45

f(mm)

3.86

F2 (mm)	4.39	TTL (mm)	4.67
F3 (mm)	-7.82	ImgH(mm)	2.93
F4(mm)	499.98
F5 (mm)	11.16
F6(mm)	-14.24
F7 (mm)	5.32
F8(mm)	-3.41

Table 21

Fig. 14A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 7, which indicates that light of different wavelengths is deviated from a focus point after the lens. Fig. 14B shows an astigmatism curve of the optical imaging lens of Embodiment 7, which shows meridional field curvature and sagittal image plane curvature. Fig. 14C shows a distortion curve of the optical imaging lens of Embodiment 7, which shows the distortion magnitude value in the case of different viewing angles. Fig. 14D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 7, which shows the deviation of the different image heights on the imaging plane after the light passes through the lens. 14A to 14D, the optical imaging lens given in Embodiment 7 can achieve good imaging quality.

Example 8

An optical imaging lens according to Embodiment 8 of the present application is described below with reference to FIGS. 15 to 16D. Fig. 15 is a view showing the configuration of an optical imaging lens according to Embodiment 8 of the present application.

As shown in FIG. 15, an optical imaging lens according to an exemplary embodiment of the present application sequentially includes an aperture STO, a first lens E1, a second lens E2, and a third lens E3, along the optical axis from the object side to the image side. Four lenses E4, fifth lens E5, sixth lens E6, seventh lens E7, eighth lens E8, filter E9, and imaging surface S19.

The first lens E1 has a positive refractive power, and the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface. The second lens E2 has a positive refractive power, the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface. The third lens E3 has a negative refractive power, the object side surface S5 is a convex surface, and the image side surface S6 is a concave surface. The fourth lens E4 has a positive refractive power, the object side surface S7 is a concave surface, and the image side surface S8 is a convex surface. The fifth lens E5 has a negative refractive power, the object side surface S9 is a concave surface, and the image side surface S10 is a convex surface. The sixth lens E6 has a negative refractive power, the object side surface S11 is a concave surface, and the image side surface S12 is a convex surface. The seventh lens E7 has a positive refractive power, and the object side surface S13 is a convex surface, and the image side surface S14 is a concave surface. The eighth lens E8 has a negative refractive power, the object side surface S15 is a convex surface, and the image side surface S16 is a concave surface. The filter E9 has an object side surface S17 and an image side surface S18. Light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging plane S19.

Table 15 shows the surface type, radius of curvature, thickness, material, and conical coefficient of each lens of the optical imaging lens of Example 8, wherein the units of the radius of curvature and the thickness are each mm (mm).

Table 22

Table 23 shows the high order term coefficients which can be used for the respective aspherical mirrors in Embodiment 8, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1.

Face number	A4	A6	A8	A10	A12	A14	A16	A18	A20
S1	4.6546E-02	-1.4800E-03	1.6106E-02	-1.5425E-01	6.5726E-01	-1.3994E+00	1.6252E+00	-9.8493E-01	2.4203E-01
S2	1.2167E-02	3.7445E-02	7.2940E-03	-2.4600E-02	3.9255E-01	-1.3853E+00	2.2119E+00	-1.6740E+00	4.7510E-01
S3	2.8847E-02	8.1177E-02	-3.4899E-01	1.6259E+00	-4.4351E+00	7.3453E+00	-7.4065E+00	4.2775E+00	-1.1101E+00
S4	-2.3882E-01	6.8447E-01	-1.6645E+00	3.2602E+00	-5.2752E+00	6.0624E+00	-3.9237E+00	1.0077E+00	0.0000E+00
S5	-2.3101E-01	7.1156E-01	-1.1552E+00	6.8760E-01	1.5025E+00	-4.8161E+00	7.0796E+00	-5.5812E+00	1.7838E+00
S6	3.3983E-02	5.4383E-02	7.5281E-01	-4.6136E+00	1.3964E+01	-2.5522E+01	2.8775E+01	-1.8231E+01	4.9045E+00

S7	-9.6820E-02	5.4185E-02	-3.4001E-01	3.4286E-01	8.8920E-01	-4.5117E+00	7.5976E+00	-5.4012E+00	1.3217E+00
S8	-9.9100E-02	-2.5972E-01	2.4671E+00	-1.2536E+01	3.6206E+01	-6.3206E+01	6.5147E+01	-3.6007E+01	8.1645E+00
S9	-1.4584E-01	1.2652E-02	2.7422E-01	-3.3121E+00	1.3410E+01	-2.7329E+01	3.0162E+01	-1.7043E+01	3.8436E+00
S10	-1.7192E-01	5.3743E-01	-2.5426E+00	6.3603E+00	-9.9069E+00	1.0344E+01	-7.0632E+00	2.8052E+00	-4.8090E-01
S11	-4.8460E-02	6.0365E-01	-2.5582E+00	5.2661E+00	-6.4090E+00	5.0260E+00	-2.5449E+00	7.5647E-01	-9.9410E-02
S12	-4.7962E-01	1.2929E+00	-2.9581E+00	4.8568E+00	-5.3629E+00	3.9029E+00	-1.7794E+00	4.5567E-01	-4.9650E-02
S13	-9.8740E-02	-5.3020E-02	-4.1510E-02	2.8379E-01	-4.7025E-01	3.9842E-01	-1.9180E-01	5.0005E-02	-5.4400E-03
S14	1.4527E-01	-4.1279E-01	4.7416E-01	-3.4481E-01	1.6503E-01	-5.1770E-02	1.0245E-02	-1.1600E-03	5.6500E-05
S15	-3.4878E-01	1.7672E-01	-8.7100E-03	-3.0170E-02	1.6209E-02	-4.2400E-03	6.2700E-04	-5.0000E-05	1.7000E-06
S16	-2.3018E-01	1.6696E-01	-8.0260E-02	2.4256E-02	-4.2500E-03	2.8300E-04	3.2100E-05	-7.0000E-06	3.6400E-07

Table 23

Table 24 gives the effective focal lengths f1 to f8 of the lenses in Embodiment 8, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the semi-diagonal angle of the effective pixel area on the imaging surface S19 of the optical imaging lens. Line length ImgH.

F1 (mm)	9.19	f(mm)	3.82
F2 (mm)	4.40	TTL (mm)	4.64
F3 (mm)	-7.79	ImgH(mm)	2.93
F4(mm)	12.94
F5 (mm)	-499.99
F6(mm)	-13.44
F7 (mm)	4.84
F8(mm)	-3.46

Table 24

Fig. 16A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 8, which indicates that light of different wavelengths is deviated from a focus point after the lens. Fig. 16B shows an astigmatism curve of the optical imaging lens of Embodiment 8, which shows meridional field curvature and sagittal image plane curvature. Fig. 16C shows a distortion curve of the optical imaging lens of Embodiment 8, which shows distortion magnitude values in the case of different viewing angles. Fig. 16D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 8, which shows the deviation of the different image heights on the imaging plane after the light passes through the lens. 16A to 16D, the optical imaging lens given in Embodiment 8 can achieve good imaging quality.

Example 9

An optical imaging lens according to Embodiment 9 of the present application is described below with reference to FIGS. 17 to 18D. Fig. 17 is a view showing the configuration of an optical imaging lens according to Embodiment 9 of the present application.

As shown in FIG. 17, an optical imaging lens according to an exemplary embodiment of the present application sequentially includes an aperture STO, a first lens E1, a second lens E2, and a third lens E3, along the optical axis from the object side to the image side. Four lenses E4, fifth lens E5, sixth lens E6, seventh lens E7, eighth lens E8, filter E9, and imaging surface S19.

The first lens E1 has a positive refractive power, and the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface. The second lens E2 has a positive refractive power, the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface. The third lens E3 has a negative refractive power, the object side surface S5 is a convex surface, and the image side surface S6 is a concave surface. The fourth lens E4 has a negative refractive power, the object side surface S7 is a convex surface, and the image side surface S8 is a concave surface. The fifth lens E5 has a positive refractive power, and the object side surface S9 is a convex surface, and the image side surface S10 is a convex surface. The sixth lens E6 has a positive refractive power, and the object side surface S11 is a concave surface, and the image side surface S12 is a convex surface. The seventh lens E7 has a positive refractive power, and the object side surface S13 is a convex surface, and the image side surface S14 is a concave surface. The eighth lens E8 has a negative refractive power, the object side surface S15 is a convex surface, and the image side surface S16 is a concave surface. The filter E9 has an object side surface S17 and an image side surface S18. Light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging plane S19.

Table 25 shows the surface type, radius of curvature, thickness, material, and conical coefficient of each lens of the optical imaging lens of Example 9, in which the unit of curvature radius and thickness are both millimeters (mm).

Table 25

Table 26 shows the high order coefficient which can be used for each aspherical mirror surface in Embodiment 9, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1.

Face number	A4	A6	A8	A10	A12	A14	A16	A18	A20
S1	4.7739E-02	-2.1950E-02	1.9785E-01	-9.4627E-01	2.6600E+00	-4.4573E+00	4.4008E+00	-2.3632E+00	5.3015E-01
S2	3.8100E-03	9.7332E-02	-1.8387E-01	3.3514E-01	1.3617E-01	-1.8095E+00	3.3704E+00	-2.6784E+00	7.8338E-01
S3	2.0672E-02	9.5111E-02	-1.8243E-01	3.2726E-01	-5.0630E-02	-1.0510E+00	1.9682E+00	-1.3737E+00	3.0407E-01
S4	-2.3320E-01	6.5832E-01	-1.6073E+00	3.2369E+00	-5.5463E+00	6.8430E+00	-4.7519E+00	1.3148E+00	0.0000E+00
S5	-2.3309E-01	7.4468E-01	-1.4345E+00	2.0647E+00	-2.6876E+00	3.0212E+00	-1.4925E+00	-6.2980E-01	6.2999E-01
S6	2.8969E-02	1.4946E-01	-5.6400E-03	-1.1701E+00	4.2480E+00	-8.4715E+00	1.0823E+01	-7.9253E+00	2.4444E+00
S7	-9.8320E-02	3.5722E-02	3.3657E-02	-1.9000E+00	7.8111E+00	-1.7145E+01	2.1134E+01	-1.3130E+01	3.1093E+00
S8	-1.0377E-01	-2.2581E-01	2.2360E+00	-1.1851E+01	3.5212E+01	-6.2990E+01	6.6282E+01	-3.7210E+01	8.5136E+00
S9	-1.6177E-01	-9.6000E-03	4.4933E-01	-4.0740E+00	1.5754E+01	-3.1920E+01	3.5467E+01	-2.0298E+01	4.6498E+00
S10	-1.2393E-01	1.4167E-01	-3.9015E-01	-6.2852E-01	3.9613E+00	-6.7096E+00	5.6404E+00	-2.4450E+00	4.4140E-01
S11	-6.0740E-02	5.1046E-01	-1.4423E+00	8.5312E-01	2.6174E+00	-5.5938E+00	4.7181E+00	-1.9309E+00	3.1685E-01
S12	-5.3654E-01	1.7264E+00	-4.1783E+00	6.6200E+00	-6.7325E+00	4.3962E+00	-1.7778E+00	4.0253E-01	-3.8720E-02
S13	-5.8420E-02	-6.8110E-02	-1.5905E-01	4.6721E-01	-5.4200E-01	3.4850E-01	-1.3339E-01	2.9150E-02	-2.8000E-03
S14	1.2735E-01	-3.4123E-01	3.3930E-01	-2.0505E-01	7.9269E-02	-1.9840E-02	3.1650E-03	-3.0000E-04	1.2600E-05
S15	-3.1909E-01	1.4840E-01	1.6330E-03	-3.0210E-02	1.4821E-02	-3.6900E-03	5.2600E-04	-4.1000E-05	1.3400E-06
S16	-2.1171E-01	1.3448E-01	-4.6350E-02	2.5530E-03	4.3720E-03	-1.8300E-03	3.4100E-04	-3.2000E-05	1.2000E-06

Table 26

Table 27 gives the effective focal lengths f1 to f8 of the lenses in Embodiment 9, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the semi-diagonal angle of the effective pixel area on the imaging surface S19 of the optical imaging lens. Line length ImgH.

F1 (mm)	9.42	f(mm)	3.86
F2 (mm)	4.37	TTL (mm)	4.66
F3 (mm)	-7.46	ImgH(mm)	2.93
F4(mm)	-433.24
F5 (mm)	12.32
F6(mm)	509.60
F7 (mm)	7.26

F8(mm)

-3.41

Table 27

Fig. 18A shows an axial chromatic aberration curve of the optical imaging lens of Example 9, which shows that light of different wavelengths is deviated from the focus point after the lens. Fig. 18B shows an astigmatism curve of the optical imaging lens of Example 9, which shows meridional field curvature and sagittal image plane curvature. Fig. 18C shows a distortion curve of the optical imaging lens of Embodiment 9, which shows the distortion magnitude value in the case of different viewing angles. Fig. 18D shows a magnification chromatic aberration curve of the optical imaging lens of Example 9, which shows the deviation of the different image heights on the imaging plane after the light passes through the lens. 18A to 18D, the optical imaging lens given in Embodiment 9 can achieve good imaging quality.

Example 10

An optical imaging lens according to Embodiment 10 of the present application is described below with reference to FIGS. 19 to 20D. Fig. 19 is a view showing the configuration of an optical imaging lens according to Embodiment 10 of the present application.

As shown in FIG. 19, an optical imaging lens according to an exemplary embodiment of the present application sequentially includes an aperture STO, a first lens E1, a second lens E2, and a third lens E3, along the optical axis from the object side to the image side. Four lenses E4, fifth lens E5, sixth lens E6, seventh lens E7, eighth lens E8, filter E9, and imaging surface S19.

The first lens E1 has a positive refractive power, and the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface. The second lens E2 has a positive refractive power, the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface. The third lens E3 has a negative refractive power, the object side surface S5 is a convex surface, and the image side surface S6 is a concave surface. The fourth lens E4 has a negative refractive power, the object side surface S7 is a convex surface, and the image side surface S8 is a concave surface. The fifth lens E5 has a positive refractive power, and the object side surface S9 is a concave surface, and the image side surface S10 is a convex surface. The sixth lens E6 has a positive refractive power, and the object side surface S11 is a concave surface, and the image side surface S12 is a convex surface. The seventh lens E7 has a negative refractive power, the object side surface S13 is a convex surface, and the image side surface S14 is a concave surface. The eighth lens E8 has a negative refractive power, the object side surface S15 is a convex surface, and the image side surface S16 is a concave surface. The filter E9 has an object side surface S17 and an image side surface S18. Light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging plane S19.

Table 28 shows the surface type, the curvature radius, the thickness, the material, and the conical coefficient of each lens of the optical imaging lens of Example 10, wherein the units of the radius of curvature and the thickness are each mm (mm).

Table 28

Table 29 shows the high order coefficient which can be used for each aspherical mirror surface in Embodiment 10, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1.

Face number	A4	A6	A8	A10	A12	A14	A16	A18	A20
S1	4.0678E-02	5.5241E-02	-2.7549E-01	8.5937E-01	-1.7399E+00	2.2634E+00	-1.7740E+00	7.4451E-01	-1.2674E-01
S2	3.5480E-03	8.7812E-02	9.9795E-02	-1.2599E+00	4.0337E+00	-6.6530E+00	6.3567E+00	-3.3516E+00	7.3935E-01
S3	9.9810E-03	2.8415E-01	-1.2608E+00	4.1794E+00	-9.5869E+00	1.4753E+01	-1.4332E+01	7.9662E+00	-1.9545E+00
S4	-2.1838E-01	6.2450E-01	-1.5249E+00	2.4338E+00	-2.6986E+00	2.2702E+00	-1.2290E+00	2.4916E-01	0.0000E+00
S5	-2.2046E-01	7.6977E-01	-1.7990E+00	2.3659E+00	2.4505E-01	-6.7340E+00	1.1930E+01	-9.5525E+00	2.9754E+00
S6	3.9617E-02	-4.2440E-02	1.6676E+00	-9.7401E+00	3.0521E+01	-5.6781E+01	6.3008E+01	-3.8324E+01	9.7598E+00
S7	-1.2780E-01	5.1086E-01	-4.0565E+00	1.8239E+01	-5.2277E+01	9.3755E+01	-1.0231E+02	6.2629E+01	-1.6556E+01
S8	-1.1192E-01	-2.5494E-01	2.5382E+00	-1.3367E+01	3.9885E+01	-7.1779E+01	7.6093E+01	-4.3156E+01	1.0012E+01
S9	-1.5415E-01	9.9780E-03	3.2978E-01	-3.6801E+00	1.4870E+01	-3.0565E+01	3.4014E+01	-1.9274E+01	4.3104E+00
S10	-6.2690E-02	-2.8179E-01	1.2578E+00	-4.6397E+00	1.0106E+01	-1.2445E+01	8.6336E+00	-3.1539E+00	4.7285E-01
S11	-1.9500E-03	4.9969E-02	-5.5660E-02	-1.2197E+00	3.9891E+00	-5.3841E+00	3.7677E+00	-1.3584E+00	2.0008E-01
S12	-5.6255E-01	1.8083E+00	-4.3496E+00	7.1018E+00	-7.6421E+00	5.3603E+00	-2.3470E+00	5.7858E-01	-6.1030E-02
S13	1.2694E-01	-6.8221E-01	1.1126E+00	-1.3336E+00	1.1997E+00	-7.9161E-01	3.4217E-01	-8.2570E-02	8.2910E-03
S14	1.4499E-01	-4.2896E-01	4.9070E-01	-3.5090E-01	1.6395E-01	-4.9990E-02	9.5920E-03	-1.0500E-03	4.9500E-05

S15	-2.9364E-01	1.2948E-01	5.5930E-03	-2.8720E-02	1.3618E-02	-3.3400E-03	4.6900E-04	-3.6000E-05	1.1600E-06
S16	-2.1813E-01	1.5839E-01	-8.4880E-02	3.2810E-02	-9.1300E-03	1.7730E-03	-2.3000E-04	1.7100E-05	-5.7000E-07

Table 29

Table 30 gives the effective focal lengths f1 to f8 of the lenses in Embodiment 10, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the semi-diagonal angle of the effective pixel area on the imaging surface S19 of the optical imaging lens. Line length ImgH.

F1 (mm)	11.06	f(mm)	3.75
F2 (mm)	4.11	TTL (mm)	4.59
F3 (mm)	-8.10	ImgH(mm)	2.93
F4(mm)	-172.99
F5(m)	8.54
F6(mm)	7.89
F7 (mm)	-750.73
F8(mm)	-3.14

Table 30

Fig. 20A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 10, which shows that light of different wavelengths is deviated from the focus point after the lens. Fig. 20B shows an astigmatism curve of the optical imaging lens of Embodiment 10, which shows meridional field curvature and sagittal image plane curvature. Fig. 20C shows a distortion curve of the optical imaging lens of Embodiment 10, which shows the distortion magnitude value in the case of different viewing angles. Fig. 20D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 10, which shows deviations of different image heights on the imaging plane after the light passes through the lens. 20A to 20D, the optical imaging lens given in Embodiment 10 can achieve good imaging quality.

Example 11

An optical imaging lens according to Embodiment 11 of the present application is described below with reference to FIGS. 21 to 22D. Fig. 21 is a view showing the configuration of an optical imaging lens according to Embodiment 11 of the present application.

As shown in FIG. 21, an optical imaging lens according to an exemplary embodiment of the present application sequentially includes an aperture STO, a first lens E1, a second lens E2, and a third lens E3, along the optical axis from the object side to the image side. Four lenses E4, fifth lens E5, sixth lens E6, seventh lens E7, eighth lens E8, filter E9, and imaging surface S19.

The first lens E1 has a positive refractive power, and the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface. The second lens E2 has a positive refractive power, the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface. The third lens E3 has a negative refractive power, the object side surface S5 is a concave surface, and the image side surface S6 is a concave surface. The fourth lens E4 has a positive refractive power, the object side surface S7 is a convex surface, and the image side surface S8 is a concave surface. The fifth lens E5 has a positive refractive power, and the object side surface S9 is a convex surface, and the image side surface S10 is a convex surface. The sixth lens E6 has a negative refractive power, the object side surface S11 is a concave surface, and the image side surface S12 is a convex surface. The seventh lens E7 has a positive refractive power, and the object side surface S13 is a convex surface, and the image side surface S14 is a concave surface. The eighth lens E8 has a negative refractive power, the object side surface S15 is a convex surface, and the image side surface S16 is a concave surface. The filter E9 has an object side surface S17 and an image side surface S18. Light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging plane S19.

Table 31 shows the surface type, the radius of curvature, the thickness, the material, and the conical coefficient of each lens of the optical imaging lens of Example 11, wherein the units of the radius of curvature and the thickness are each mm (mm).

Table 31

Table 32 shows the high order coefficient which can be used for each aspherical mirror surface in Embodiment 11, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1.

Face number	A4	A6	A8	A10	A12	A14	A16	A18	A20
S1	4.3196E-02	5.5280E-03	8.3946E-02	-7.3144E-01	2.5509E+00	-4.7381E+00	4.9426E+00	-2.7320E+00	6.2012E-01
S2	9.2860E-03	3.5971E-02	1.2516E-01	-7.0225E-01	2.6252E+00	-5.8954E+00	7.6220E+00	-5.1493E+00	1.3841E+00
S3	1.6565E-02	1.3623E-01	-6.7378E-01	2.9309E+00	-7.5893E+00	1.1836E+01	-1.1027E+01	5.7857E+00	-1.3574E+00
S4	-1.8875E-01	4.5096E-01	-1.1621E+00	2.6776E+00	-5.3808E+00	7.4334E+00	-5.4980E+00	1.5829E+00	0.0000E+00
S5	-2.2382E-01	8.5192E-01	-2.1750E+00	4.5534E+00	-8.2149E+00	1.1279E+01	-9.2201E+00	3.4055E+00	-2.6896E-01
S6	-1.8490E-02	3.5618E-01	-6.4067E-01	7.0733E-01	-1.1119E+00	2.4266E+00	-2.5322E+00	8.2792E-01	8.2475E-02
S7	-1.3780E-01	4.0996E-01	-2.3597E+00	7.5312E+00	-1.4781E+01	1.5340E+01	-5.4280E+00	-2.4672E+00	1.7501E+00
S8	-1.0110E-01	-2.4523E-01	2.4395E+00	-1.2663E+01	3.7214E+01	-6.6106E+01	6.9288E+01	-3.8901E+01	8.9450E+00
S9	-1.6299E-01	2.3800E-04	3.2267E-01	-3.5907E+00	1.4571E+01	-2.9879E+01	3.3120E+01	-1.8730E+01	4.2004E+00
S10	-9.0850E-02	-1.3928E-01	8.4498E-01	-3.7744E+00	8.9219E+00	-1.1525E+01	8.3671E+00	-3.2375E+00	5.2442E-01
S11	-8.3800E-03	1.0027E-01	1.5377E-01	-2.6161E+00	7.2763E+00	-9.5618E+00	6.8049E+00	-2.5480E+00	3.9498E-01
S12	-5.3721E-01	1.6421E+00	-3.9959E+00	6.5701E+00	-7.0752E+00	4.9539E+00	-2.1582E+00	5.2623E-01	-5.4440E-02
S13	-1.2089E-01	1.3070E-01	-6.4799E-01	1.2884E+00	-1.4308E+00	9.4518E-01	-3.7202E-01	8.1269E-02	-7.6000E-03
S14	1.4082E-01	-3.8790E-01	4.2341E-01	-2.8798E-01	1.2750E-01	-3.6780E-02	6.6880E-03	-7.0000E-04	3.1300E-05
S15	-3.5037E-01	1.7934E-01	-1.1920E-02	-2.7890E-02	1.5228E-02	-3.9800E-03	5.8500E-04	-4.6000E-05	1.5500E-06
S16	-2.1550E-01	1.4815E-01	-6.6080E-02	1.7406E-02	-2.1900E-03	-7.3000E-05	6.4000E-05	-8.0000E-06	3.4800E-07

Table 32

Table 33 gives the effective focal lengths f1 to f8 of the lenses in Embodiment 11, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the semi-diagonal angle of the effective pixel area on the imaging surface S19 of the optical imaging lens. Line length ImgH.

F1 (mm)	7.07	f(mm)	3.87
F2 (mm)	4.57	TTL (mm)	4.68
F3 (mm)	-6.25	ImgH(mm)	2.93
F4(mm)	336.03
F5 (mm)	13.40
F6(mm)	-19.35
F7 (mm)	5.57
F8(mm)	-3.38

Table 33

Fig. 22A shows an axial chromatic aberration curve of the optical imaging lens of Example 11, which shows that the light of different wavelengths is deviated from the focus point after passing through the lens. Fig. 22B shows an astigmatism curve of the optical imaging lens of Example 11, which shows meridional field curvature and sagittal image plane curvature. Fig. 22C shows a distortion curve of the optical imaging lens of Embodiment 11, which shows distortion magnitude values in the case of different viewing angles. Fig. 22D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 11, which shows the deviation of the different image heights on the imaging plane after the light passes through the lens. 22A to 22D, the optical imaging lens given in Embodiment 11 can achieve good imaging quality.

Example 12

An optical imaging lens according to Embodiment 12 of the present application is described below with reference to FIGS. 23 to 24D. Fig. 23 is a view showing the configuration of an optical imaging lens according to Embodiment 12 of the present application.

As shown in FIG. 23, an optical imaging lens according to an exemplary embodiment of the present application sequentially includes an aperture STO, a first lens E1, a second lens E2, and a third lens E3, along the optical axis from the object side to the image side. Four lenses E4, fifth lens E5, sixth lens E6, seventh lens E7, eighth lens E8, filter E9, and imaging surface S19.

The first lens E1 has a positive refractive power, and the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface. The second lens E2 has a positive refractive power, the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface. The third lens E3 has a negative refractive power, the object side surface S5 is a convex surface, and the image side surface S6 is a concave surface. The fourth lens E4 has a negative refractive power, the object side surface S7 is a concave surface, and the image side surface S8 is a concave surface. The fifth lens E5 has a positive refractive power, and the object side surface S9 is a convex surface, and the image side surface S10 is a convex surface. The sixth lens E6 has a negative refractive power, the object side surface S11 is a concave surface, and the image side surface S12 is a convex surface. The seventh lens E7 has a positive refractive power, and the object side surface S13 is a convex surface, and the image side surface S14 is a concave surface. The eighth lens E8 has a negative refractive power, the object side surface S15 is a convex surface, and the image side surface S16 is a concave surface. The filter E9 has an object side surface S17 and an image side surface S18. Light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging plane S19.

Table 34 shows the surface type, radius of curvature, thickness, material, and conical coefficient of each lens of the optical imaging lens of Example 12, in which the unit of the radius of curvature and the thickness are each mm (mm).

Table 34

Table 35 shows the high order coefficient which can be used for each aspherical mirror surface in Embodiment 12, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1.

Face number	A4	A6	A8	A10	A12	A14	A16	A18	A20
S1	3.9117E-02	3.3057E-02	-1.7707E-01	5.4419E-01	-9.7140E-01	1.0178E+00	-5.6720E-01	1.2385E-01	2.5930E-03
S2	-1.9520E-02	1.8931E-01	-5.8731E-01	1.8641E+00	-4.0068E+00	5.5059E+00	-4.5061E+00	1.9754E+00	-3.6353E-01
S3	-2.7000E-03	2.4925E-01	-1.0673E+00	4.0999E+00	-1.0431E+01	1.6817E+01	-1.6539E+01	9.1106E+00	-2.1773E+00
S4	-2.3519E-01	6.7766E-01	-1.7265E+00	3.4413E+00	-5.2967E+00	5.6856E+00	-3.5019E+00	8.7092E-01	0.0000E+00
S5	-2.0818E-01	6.3630E-01	-1.1572E+00	1.1196E+00	3.7283E-01	-2.9006E+00	4.6128E+00	-3.6526E+00	1.1555E+00
S6	3.9391E-02	9.2684E-02	1.4547E-01	-1.5593E+00	5.2605E+00	-1.0004E+01	1.1699E+01	-7.7100E+00	2.1456E+00
S7	-9.6210E-02	1.2780E-01	-7.4156E-01	1.4903E+00	-1.1350E+00	-2.6303E+00	7.2033E+00	-6.0157E+00	1.6361E+00
S8	-1.0012E-01	-2.6487E-01	2.4770E+00	-1.2983E+01	3.8559E+01	-6.8968E+01	7.2562E+01	-4.0762E+01	9.3375E+00
S9	-1.7178E-01	1.6330E-03	3.5525E-01	-3.7545E+00	1.5070E+01	-3.0854E+01	3.4284E+01	-1.9476E+01	4.3929E+00
S10	-1.1664E-01	1.3568E-01	-6.2384E-01	6.1130E-01	1.0263E+00	-2.8130E+00	2.6144E+00	-1.1526E+00	2.0570E-01
S11	-2.6510E-02	4.0774E-01	-1.6095E+00	2.5300E+00	-1.5777E+00	-2.4963E-01	9.2453E-01	-4.9648E-01	9.0130E-02
S12	-5.3960E-01	1.7259E+00	-4.2910E+00	7.1822E+00	-7.8664E+00	5.5872E+00	-2.4650E+00	6.0952E-01	-6.4240E-02
S13	-1.2278E-01	1.0199E-01	-4.7096E-01	9.3055E-01	-1.0436E+00	7.0267E-01	-2.8552E-01	6.5256E-02	-6.4400E-03
S14	1.3774E-01	-3.7618E-01	4.1252E-01	-2.8351E-01	1.2704E-01	-3.7060E-02	6.7970E-03	-7.1000E-04	3.2200E-05
S15	-3.4230E-01	1.7563E-01	-1.5920E-02	-2.2500E-02	1.2432E-02	-3.1800E-03	4.5600E-04	-3.5000E-05	1.1400E-06
S16	-2.2136E-01	1.4740E-01	-6.1010E-02	1.2297E-02	5.2600E-04	-9.2000E-04	2.1800E-04	-2.3000E-05	9.4700E-07

Table 35

Table 36 gives the effective focal lengths f1 to f8 of the lenses in Embodiment 12, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the semi-diagonal angle of the effective pixel area on the imaging surface S19 of the optical imaging lens. Line length ImgH.

F1 (mm)	8.13	f(mm)	3.85
F2 (mm)	4.88	TTL (mm)	4.66
F3 (mm)	-7.95	ImgH(mm)	2.93
F4(mm)	-460.26
F5 (mm)	10.99
F6(mm)	-15.80
F7 (mm)	5.24
F8(mm)	-3.37

Table 36

Fig. 24A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 12, which shows that light of different wavelengths is deviated from a focus point after the lens. Fig. 24B shows an astigmatism curve of the optical imaging lens of Example 12, which shows meridional field curvature and sagittal image plane curvature. Fig. 24C shows a distortion curve of the optical imaging lens of Embodiment 12, which shows distortion magnitude values in the case of different viewing angles. Fig. 24D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 12, which shows deviations of different image heights on the imaging plane after the light passes through the lens. According to FIGS. 24A to 24D, the optical imaging lens given in Embodiment 12 can achieve good imaging quality.

Example 13

An optical imaging lens according to Embodiment 13 of the present application is described below with reference to FIGS. 25 to 26D. Fig. 25 is a view showing the configuration of an optical imaging lens according to Embodiment 13 of the present application.

As shown in FIG. 25, an optical imaging lens according to an exemplary embodiment of the present application sequentially includes an aperture STO, a first lens E1, a second lens E2, a third lens E3, and an image along the optical axis from the object side to the image side. Four lenses E4, fifth lens E5, sixth lens E6, seventh lens E7, eighth lens E8, filter E9, and imaging surface S19.

The first lens E1 has a positive refractive power, and the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface. The second lens E2 has a positive refractive power, the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface. The third lens E3 has a negative refractive power, the object side surface S5 is a convex surface, and the image side surface S6 is a concave surface. The fourth lens E4 has a negative refractive power, the object side surface S7 is a convex surface, and the image side surface S8 is a concave surface. The fifth lens E5 has a positive refractive power, and the object side surface S9 is a concave surface, and the image side surface S10 is a convex surface. The sixth lens E6 has a negative refractive power, the object side surface S11 is a concave surface, and the image side surface S12 is a convex surface. The seventh lens E7 has a positive refractive power, and the object side surface S13 is a convex surface, and the image side surface S14 is a concave surface. The eighth lens E8 has a negative refractive power, the object side surface S15 is a convex surface, and the image side surface S16 is a concave surface. The filter E9 has an object side surface S17 and an image side surface S18. Light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging plane S19.

Table 37 shows the surface type, the radius of curvature, the thickness, the material, and the conical coefficient of each lens of the optical imaging lens of Example 13, wherein the units of the radius of curvature and the thickness are each mm (mm).

Table 37

Table 38 shows the high order term coefficients which can be used for the respective aspherical mirrors in Embodiment 13, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1.

Face number	A4	A6	A8	A10	A12	A14	A16	A18	A20
S1	4.2883E-02	1.7988E-02	-8.5000E-02	2.2188E-01	-2.6607E-01	3.7865E-02	2.6785E-01	-2.7462E-01	8.4110E-02
S2	-9.1900E-03	1.5844E-01	-4.8011E-01	1.5721E+00	-3.4683E+00	4.8309E+00	-3.9434E+00	1.6942E+00	-3.0144E-01
S3	6.1280E-03	2.0962E-01	-9.1246E-01	3.6108E+00	-9.3867E+00	1.5353E+01	-1.5248E+01	8.4701E+00	-2.0430E+00
S4	-2.3256E-01	6.6355E-01	-1.6736E+00	3.3458E+00	-5.2738E+00	5.8454E+00	-3.7087E+00	9.4888E-01	0.0000E+00
S5	-2.1675E-01	6.6132E-01	-1.1131E+00	7.2664E-01	1.4643E+00	-4.6627E+00	6.3999E+00	-4.7144E+00	1.4347E+00
S6	3.2562E-02	1.2197E-01	9.2025E-02	-1.5145E+00	5.2542E+00	-1.0056E+01	1.1836E+01	-7.8726E+00	2.2170E+00
S7	-1.0897E-01	1.6356E-01	-8.6945E-01	1.8465E+00	-1.5672E+00	-2.8487E+00	8.4602E+00	-7.4123E+00	2.1781E+00
S8	-1.0185E-01	-2.5953E-01	2.4400E+00	-1.2651E+01	3.7357E+01	-6.6600E+01	6.9919E+01	-3.9218E+01	8.9748E+00
S9	-1.6724E-01	1.5800E-03	3.5136E-01	-3.7812E+00	1.5193E+01	-3.1076E+01	3.4460E+01	-1.9504E+01	4.3711E+00
S10	-1.2171E-01	1.7315E-01	-6.9537E-01	5.1399E-01	1.6543E+00	-3.9621E+00	3.6876E+00	-1.6695E+00	3.0706E-01
S11	-3.7110E-02	4.9917E-01	-1.9832E+00	3.3618E+00	-2.6159E+00	4.7143E-01	6.7002E-01	-4.6606E-01	9.2614E-02
S12	-5.3443E-01	1.7139E+00	-4.3351E+00	7.3765E+00	-8.1642E+00	5.8224E+00	-2.5674E+00	6.3296E-01	-6.6450E-02
S13	-1.0752E-01	3.1139E-02	-3.2135E-01	7.2383E-01	-8.4524E-01	5.7342E-01	-2.3173E-01	5.2531E-02	-5.1600E-03
S14	1.3888E-01	-3.8427E-01	4.2141E-01	-2.8922E-01	1.2956E-01	-3.7880E-02	6.9850E-03	-7.4000E-04	3.3700E-05
S15	-3.3764E-01	1.7132E-01	-1.4090E-02	-2.2950E-02	1.2503E-02	-3.2000E-03	4.5800E-04	-3.5000E-05	1.1500E-06
S16	-2.1538E-01	1.4573E-01	-6.3490E-02	1.5651E-02	-1.3500E-03	-3.3000E-04	1.1200E-04	-1.3000E-05	5.3100E-07

Table 38

Table 39 gives the effective focal lengths f1 to f8 of the lenses in Embodiment 13, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the semi-diagonal angle of the effective pixel area on the imaging surface S19 of the optical imaging lens. Line length ImgH.

F1 (mm)	8.72	f(mm)	3.85
F2 (mm)	4.66	TTL (mm)	4.67
F3 (mm)	-7.94	ImgH(mm)	2.93
F4(mm)	-914.37
F5 (mm)	10.55
F6(mm)	-14.17
F7(m)	5.28
F8(mm)	-3.42

Table 39

Fig. 26A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 13, which indicates that light of different wavelengths is deviated from a focus point after the lens. Fig. 26B shows an astigmatism curve of the optical imaging lens of Example 13, which shows the meridional field curvature and the sagittal image plane curvature. Fig. 26C shows a distortion curve of the optical imaging lens of Embodiment 13, which shows the distortion magnitude value in the case of different viewing angles. Fig. 26D shows a magnification chromatic aberration curve of the optical imaging lens of Embodiment 13, which shows the deviation of the different image heights on the imaging plane after the light passes through the lens. 26A to 26D, the optical imaging lens given in Embodiment 13 can achieve good imaging quality.

Example 14

An optical imaging lens according to Embodiment 14 of the present application is described below with reference to FIGS. 27 to 28D. FIG. 27 is a view showing the configuration of an optical imaging lens according to Embodiment 14 of the present application.

As shown in FIG. 27, an optical imaging lens according to an exemplary embodiment of the present application includes, in order from the object side to the image side along the optical axis, a pupil STO, a first lens E1, a second lens E2, and a third lens E3, Four lenses E4, fifth lens E5, sixth lens E6, seventh lens E7, eighth lens E8, filter E9, and imaging surface S19.

The first lens E1 has a positive refractive power, and the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface. The second lens E2 has a positive refractive power, the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface. The third lens E3 has a positive refractive power, and the object side surface S5 is a convex surface, and the image side surface S6 is a concave surface. The fourth lens E4 has a positive refractive power, the object side surface S7 is a convex surface, and the image side surface S8 is a concave surface. The fifth lens E5 has a positive refractive power, and the object side surface S9 is a concave surface, and the image side surface S10 is a convex surface. The sixth lens E6 has a negative refractive power, the object side surface S11 is a concave surface, and the image side surface S12 is a convex surface. The seventh lens E7 has a positive refractive power, and the object side surface S13 is a convex surface, and the image side surface S14 is a concave surface. The eighth lens E8 has a negative refractive power, the object side surface S15 is a convex surface, and the image side surface S16 is a concave surface. The filter E9 has an object side surface S17 and an image side surface S18. Light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging plane S19.

Table 40 shows the surface type, radius of curvature, thickness, material, and conical coefficient of each lens of the optical imaging lens of Example 14, in which the unit of curvature radius and thickness are both millimeters (mm).

Table 40

Table 41 shows the high order term coefficients which can be used for the respective aspherical mirrors in Embodiment 14, wherein each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1.

Face number	A4	A6	A8	A10	A12	A14	A16	A18	A20
S1	3.9391E-02	5.0770E-02	-2.9663E-01	1.0310E+00	-2.2353E+00	3.0705E+00	-2.5768E+00	1.2034E+00	-2.4079E-01
S2	-5.3730E-02	3.3578E-01	-6.3095E-01	6.5872E-01	3.2498E-01	-1.8705E+00	2.2633E+00	-1.1798E+00	2.0746E-01
S3	-5.4600E-02	4.6634E-01	-1.3508E+00	3.7633E+00	-8.4362E+00	1.3469E+01	-1.3951E+01	8.3154E+00	-2.1611E+00
S4	-2.1991E-01	3.3746E-01	-1.8786E-01	-4.3675E-01	7.9901E-01	-4.1174E-01	8.7438E-02	-6.7440E-02	0.0000E+00
S5	-2.2760E-02	-9.1843E-01	5.5364E+00	-1.7552E+01	3.5615E+01	-4.7747E+01	4.1380E+01	-2.1012E+01	4.7006E+00
S6	4.5053E-02	-1.1456E-01	1.1824E+00	-4.2583E+00	9.4151E+00	-1.3736E+01	1.3151E+01	-7.3460E+00	1.7724E+00
S7	-9.2200E-02	2.9133E-01	-1.7840E+00	5.9061E+00	-1.2563E+01	1.5926E+01	-1.1538E+01	4.4564E+00	-7.2208E-01
S8	-9.6240E-02	-2.3488E-01	2.2843E+00	-1.1960E+01	3.5543E+01	-6.3285E+01	6.5903E+01	-3.6594E+01	8.3147E+00
S9	-1.6825E-01	4.6960E-03	3.8754E-01	-4.0708E+00	1.6241E+01	-3.3388E+01	3.7530E+01	-2.1706E+01	5.0243E+00
S10	-1.2119E-01	1.0685E-01	-9.0190E-02	-1.8843E+00	6.7386E+00	-1.0378E+01	8.5720E+00	-3.7523E+00	6.8938E-01
S11	-1.1420E-02	2.6467E-01	-1.1500E+00	1.4064E+00	5.0216E-01	-2.8405E+00	2.8762E+00	-1.2947E+00	2.2576E-01
S12	-4.2923E-01	1.1644E+00	-2.7279E+00	4.5567E+00	-5.0260E+00	3.5797E+00	-1.5726E+00	3.8487E-01	-3.9970E-02
S13	-9.0630E-02	-1.0225E-01	7.9972E-02	5.1983E-02	-1.6186E-01	1.3876E-01	-6.1320E-02	1.4772E-02	-1.5400E-03
S14	1.4160E-01	-4.0810E-01	4.6948E-01	-3.4074E-01	1.6155E-01	-4.9880E-02	9.6810E-03	-1.0700E-03	5.1400E-05
S15	-3.9683E-01	2.2994E-01	-3.8750E-02	-1.9460E-02	1.3724E-02	-3.8700E-03	5.9500E-04	-4.9000E-05	1.6800E-06
S16	-2.3393E-01	1.7127E-01	-7.9600E-02	2.1607E-02	-2.5600E-03	-2.5000E-04	1.2400E-04	-1.5000E-05	6.7200E-07

Table 41

Table 42 gives the effective focal lengths f1 to f8 of the lenses in Embodiment 14, the total effective focal length f of the optical imaging lens, the optical total length TTL of the optical imaging lens, and the semi-diagonal angle of the effective pixel area on the imaging surface S19 of the optical imaging lens. Line length ImgH.

F1 (mm)	6.32	f(mm)	3.76
F2 (mm)	15.18	TTL (mm)	4.63
F3 (mm)	501.57	ImgH(mm)	2.93
F4(mm)	799.98
F5 (mm)	7.24
F6(mm)	-7.69
F7 (mm)	4.88
F8(mm)	-3.28

Table 42

Fig. 28A shows an axial chromatic aberration curve of the optical imaging lens of Example 14, which shows that light of different wavelengths is deviated from the focus point after the lens. Fig. 28B shows an astigmatism curve of the optical imaging lens of Example 14, which shows meridional field curvature and sagittal image plane curvature. Fig. 28C shows a distortion curve of the optical imaging lens of Embodiment 14, which shows distortion magnitude values in the case of different viewing angles. Fig. 28D shows a magnification chromatic aberration curve of the optical imaging lens of Example 14, which shows the deviation of the different image heights on the imaging plane after the light passes through the lens. 28A to 28D, the optical imaging lens given in Embodiment 14 can achieve good imaging quality.

In summary, Embodiments 1 to 14 satisfy the relationships shown in Tables 43 and 44, respectively.

Conditional / Example	1	2	3	4	5	6	7
|f8/CT8|	10.03	10.84	11.29	12.10	11.65	10.55	11.19
f/EPD	1.75	1.92	1.87	1.85	1.93	1.89	1.95
TTL/ImgH	1.59	1.59	1.59	1.60	1.59	1.58	1.59
f/R1	2.14	2.24	2.20	2.20	2.26	2.20	2.25
SAG82/CT8	-1.87	-2.03	-2.16	-2.39	-2.06	-1.66	-2.03
(R15+R16)/(R15-R16)	1.46	1.44	1.44	1.41	1.45	1.44	1.45
F8/R16	-2.33	-2.31	-2.31	-2.27	-2.32	-2.31	-2.32
|f/f1|+|f/f2|	1.19	1.27	1.25	1.23	1.17	0.87	1.29
|f/f8|	1.05	1.12	1.11	1.09	1.11	1.13	1.13
CT3/CT4	1.00	0.84	0.77	1.00	0.98	0.92	0.80
T45/T67	1.03	0.98	1.14	1.30	1.34	1.00	1.25
f/R16	2.45	2.59	2.56	2.47	2.57	2.61	2.62
CT4/T45	3.88	4.77	4.54	3.08	3.07	3.87	3.93

Table 43

Conditional / Example	8	9	10	11	12	13	14
|f8/CT8|	11.31	12.06	11.56	11.69	12.05	11.31	11.25
f/EPD	1.94	1.97	1.97	1.92	1.92	1.92	1.89
TTL/ImgH	1.58	1.59	1.57	1.60	1.59	1.59	1.58
f/R1	2.21	2.23	2.21	2.23	2.18	2.21	2.18
SAG82/CT8	-1.96	-1.99	-2.06	-2.14	-2.44	-2.12	-1.78
(R15+R16)/(R15-R16)	1.45	1.45	1.41	1.43	1.42	1.44	1.42
F8/R16	-2.32	-2.32	-2.28	-2.30	-2.28	-2.31	-2.29
|f/f1|+|f/f2|	1.28	1.29	1.25	1.39	1.26	1.27	0.84
|f/f8|	1.11	1.13	1.19	1.15	1.14	1.13	1.15
CT3/CT4	0.68	1.00	0.98	0.85	1.00	1.00	0.80
T45/T67	0.92	0.79	1.01	1.23	1.02	1.35	1.27
f/R16	2.57	2.62	2.72	2.63	2.61	2.60	2.62
CT4/T45	5.22	3.21	3.73	3.84	3.93	2.96	3.93

Table 44

The present application also provides an image forming apparatus whose electronic photosensitive element may be a photosensitive coupling element (CCD) or a complementary metal oxide semiconductor element (CMOS). The imaging device may be a stand-alone imaging device such as a digital camera, or an imaging module integrated on a mobile electronic device such as a mobile phone. The imaging device is equipped with the optical imaging lens described above.

The above description is only a preferred embodiment of the present application and a description of the principles of the applied technology. It should be understood by those skilled in the art that the scope of the invention referred to in the present application is not limited to the specific combination of the above technical features, and should also be covered by the above technical features without departing from the inventive concept. Other technical solutions formed by any combination of their equivalent features. For example, the above features are combined with the technical features disclosed in the present application, but are not limited to the technical features having similar functions.

Claims (36)

1. An optical imaging lens including a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens having powers in order from an object side to an image side along an optical axis a seventh lens and an eighth lens, characterized by:

   The image side of the second lens is a concave surface;

   The image side of the fifth lens is a convex surface;

   The object side surface of the sixth lens is a concave surface and the image side surface is a convex surface;

   The object side of the seventh lens is convex and the image side is concave;

   The power of the eighth lens is a negative power.
2. The optical imaging lens according to claim 1, wherein the object side surface of the first lens is convex and the image side surface is concave.
3. The optical imaging lens according to claim 1, wherein the object side surface of the second lens is a convex surface.
4. The optical imaging lens according to claim 1, wherein the image side surface of the third lens is a concave surface.
5. The optical imaging lens according to claim 1, wherein the object side surface of the eighth lens is convex and the image side surface is concave.
6. The optical imaging lens according to claim 1, wherein the image height of the image side of the eighth lens at the maximum effective aperture SAG82 and the center thickness CT8 of the eighth lens satisfy the following relationship: -3.0 <SAG82/ CT8<-1.0.
7. The optical imaging lens according to claim 1, wherein a center thickness CT3 of the third lens and a center thickness CT4 of the fourth lens satisfy a relationship of 0.5 ≤ CT3 / CT4 ≤ 1.0.
8. The optical imaging lens according to claim 1, wherein an axial distance TTL from an object side center of the first lens to an imaging surface of the optical imaging lens and a half of an effective pixel area on the imaging surface The diagonal length ImgH satisfies the following relationship: TTL/ImgH ≤ 1.6.
9. The optical imaging lens according to any one of claims 1 to 8, characterized in that the effective focal length f8 of the eighth lens and the center thickness CT8 of the eighth lens satisfy the following relationship: 9.0 <|f8/CT8 |<13.0.
10. The optical imaging lens according to any one of claims 1 to 8, wherein an effective focal length f of the optical imaging lens and an entrance pupil diameter EPD of the optical imaging lens satisfy the following relationship: f/EPD ≤ 2.0 .
11. The optical imaging lens according to any one of claims 1 to 8, characterized in that the effective focal length f of the optical imaging lens and the radius of curvature R1 of the object side surface of the first lens satisfy the following relationship: 2.0 < f /R1<2.5.
12. The optical imaging lens according to any one of claims 1 to 8, characterized in that the radius of curvature R15 of the object side surface of the eighth lens and the curvature radius R16 of the image side surface of the eighth lens satisfy the following relationship: 1.0 < (R15 + R16) / (R15 - R16) < 2.0.
13. The optical imaging lens according to any one of claims 1 to 8, characterized in that the effective focal length f8 of the eighth lens and the radius of curvature R16 of the image side of the eighth lens satisfy the following relationship: -3.0< F8/R16<-2.0.
14. The optical imaging lens according to any one of claims 1 to 8, wherein an effective focal length f of the optical imaging lens and an effective focal length f1 of the first lens and an effective focal length f2 of the second lens The following relationship is satisfied: 0.5 <|f/f1|+|f/f2|<1.5.
15. The optical imaging lens according to any one of claims 1 to 8, characterized in that the effective focal length f of the optical imaging lens and the effective focal length f8 of the eighth lens satisfy the following relationship: 1.0 <|f/f8 |<1.5.
16. The optical imaging lens according to any one of claims 1 to 8, wherein an air gap T45 and a sixth lens and a space of the fourth lens and the fifth lens on the optical axis The air gap T67 of the seventh lens on the optical axis satisfies the following relationship: 0.5 < T45 / T67 < 1.5.
17. The optical imaging lens according to any one of claims 1 to 8, characterized in that the effective focal length f of the optical imaging lens and the curvature radius R16 of the image side of the eighth lens satisfy the following relationship: 2.0 < f /R16<3.0.
18. The optical imaging lens according to any one of claims 1 to 8, wherein a center thickness CT4 of the fourth lens and an air of the fourth lens and the fifth lens on the optical axis The interval T45 satisfies the following relationship: 2.5 < CT4 / T45 < 5.5.
19. An optical imaging lens including a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens having powers in order from an object side to an image side along an optical axis a seventh lens and an eighth lens, characterized by:

    The power of the second lens is positive power, and the image side is concave;

    The image side of the fifth lens is a convex surface;

    The object side surface of the sixth lens is a concave surface and the image side surface is a convex surface;

    The object side surface of the seventh lens is convex and the image side surface is concave;

    The power of the eighth lens is a negative power.
20. The optical imaging lens according to claim 19, wherein the object side surface of the first lens is convex and the image side surface is concave.
21. The optical imaging lens according to claim 19, wherein the object side surface of the second lens is a convex surface.
22. The optical imaging lens according to claim 19, wherein the image side surface of the third lens is a concave surface.
23. The optical imaging lens according to claim 19, wherein the object side surface of the eighth lens is convex and the image side surface is concave.
24. The optical imaging lens according to claim 19, wherein the image height of the image side of the eighth lens at the maximum effective aperture SAG82 and the center thickness CT8 of the eighth lens satisfy the following relationship: -3.0 <SAG82/ CT8<-1.0.
25. The optical imaging lens according to claim 19, wherein the center thickness CT3 of the third lens and the center thickness CT4 of the fourth lens satisfy the following relationship: 0.5 ≤ CT3 / CT4 ≤ 1.0.
26. The optical imaging lens according to claim 19, wherein an axial distance TTL from an object side center of the first lens to an imaging surface of the optical imaging lens and a half of an effective pixel area on the imaging surface The diagonal length ImgH satisfies the following relationship: TTL/ImgH ≤ 1.6.
27. The optical imaging lens according to any one of claims 19 to 26, wherein an effective focal length f8 of the eighth lens and a center thickness CT8 of the eighth lens satisfy the following relationship: 9.0 <|f8/CT8 |<13.0.
28. The optical imaging lens according to any one of claims 19 to 26, wherein an effective focal length f of the optical imaging lens and an entrance pupil diameter EPD of the optical imaging lens satisfy the following relationship: f/EPD ≤ 2.0 .
29. The optical imaging lens according to any one of claims 19 to 26, wherein an effective focal length f of the optical imaging lens and a radius of curvature R1 of an object side surface of the first lens satisfy the following relationship: 2.0 < f /R1<2.5.
30. The optical imaging lens according to any one of claims 19 to 26, wherein a radius of curvature R15 of the object side surface of the eighth lens and a curvature radius R16 of the image side surface of the eighth lens satisfy the following relationship: 1.0 < (R15 + R16) / (R15 - R16) < 2.0.
31. The optical imaging lens according to any one of claims 19 to 26, characterized in that the effective focal length f8 of the eighth lens and the curvature radius R16 of the image side of the eighth lens satisfy the following relationship: -3.0< F8/R16<-2.0.
32. The optical imaging lens according to any one of claims 19 to 26, wherein an effective focal length f of the optical imaging lens is an effective focal length f1 of the first lens and an effective focal length f2 of the second lens The following relationship is satisfied: 0.5 <|f/f1|+|f/f2|<1.5.
33. The optical imaging lens according to any one of claims 19 to 26, wherein an effective focal length f of the optical imaging lens and an effective focal length f8 of the eighth lens satisfy the following relationship: 1.0 <|f/f8 |<1.5.
34. The optical imaging lens according to any one of claims 19 to 26, wherein an air gap T45 and a sixth lens and a space of the fourth lens and the fifth lens on the optical axis The air gap T67 of the seventh lens on the optical axis satisfies the following relationship: 0.5 < T45 / T67 < 1.5.
35. The optical imaging lens according to any one of claims 19 to 26, wherein an effective focal length f of the optical imaging lens and a curvature radius R16 of an image side surface of the eighth lens satisfy the following relationship: 2.0 < f /R16<3.0.
36. The optical imaging lens according to any one of claims 19 to 26, wherein a center thickness CT4 of the fourth lens and an air of the fourth lens and the fifth lens on the optical axis The interval T45 satisfies the following relationship: 2.5 < CT4 / T45 < 5.5.

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