Optical imaging lens

Abstract

The present application discloses an optical imaging lens, which sequentially includes, from the object side to the image side along the optical axis: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, and a ninth lens, each having a focal power, and there is an air gap between any two adjacent lenses; the third lens has a positive focal power; the object side surface of the fourth lens is concave, and the image side surface of the fourth lens is concave; wherein, half of the diagonal length ImgH of the effective pixel area on the imaging surface and the distance T89 between the eighth lens and the ninth lens on the optical axis satisfy: 6.0 < ImgH / T89 < 7.0.

Description

Technical Field

[0001] The present application relates to the field of optical elements, and more particularly, to an optical imaging lens. Background Art

[0002] In recent years, with the rapid development of smart phones, the pixel count of the mobile phone cameras installed on them has been continuously upgraded. In particular, higher requirements are imposed on the rear main camera lens of mobile phones. Based on the high pixel requirements put forward by mobile phone suppliers, the pixel count of mobile phone cameras has rapidly increased from 110,000 in the past to tens of millions or even over 100 million pixels. In the future development of mobile phone cameras, the pixel count of mobile phone cameras will continue to increase, and the clarity of mobile phone cameras will also increase accordingly. That is to say, in the future field of mobile phone cameras, high pixels will become the main development trend of the industry.

[0003] In order to better meet the application requirements of the main camera on future high-end smart phones, it is desirable to provide an optical imaging lens with a large image plane. Summary of the Invention

[0004] The present application provides an optical imaging lens, which sequentially includes, from the object side to the image side along the optical axis: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, and a ninth lens, each having a focal power, and there is an air gap between any two adjacent lenses; the third lens has a positive focal power; the object side surface of the fourth lens is concave, and the image side surface of the fourth lens is concave; wherein, half of the diagonal length ImgH of the effective pixel region on the imaging surface and the distance T89 between the eighth lens and the ninth lens on the optical axis satisfy: 6.0 < ImgH / T89 < 7.0. By restricting the maximum image plane height of the optical imaging lens and the air gap between the eighth lens and the ninth lens on the optical axis, the optical imaging lens can have an imaging effect with a large image plane and at the same time have good processing technology.

[0005] In one embodiment, the effective focal length f2 of the second lens and the effective focal length f3 of the third lens satisfy: -3.0 < f3 / f2 < -2.0.

[0006] In one embodiment, the effective focal length f1 of the first lens and the effective focal length f5 of the fifth lens satisfy: 3.5 < f5 / f1 < 7.0.

[0007] In one embodiment, the effective focal length f of the optical imaging lens, the effective focal length f8 of the eighth lens, and the effective focal length f9 of the ninth lens satisfy: 1.0 < f / (f8 + f9) < 1.5.

[0008] In one embodiment, the on-axis distance TTL from the object side surface of the first lens to the imaging surface and the relative F-number, aperture number Fno of the optical imaging lens satisfy: 4.5 mm < TTL / Fno < 5.0 mm.

[0009] In one embodiment, the central thickness CT1 of the first lens on the optical axis and the central thickness CT8 of the eighth lens on the optical axis satisfy: 1.0 < CT8 / CT1 < 1.5.

[0010] In one embodiment, half of the maximum field of view Semi-FOV of the optical imaging lens and the central thickness CT9 of the ninth lens on the optical axis satisfy: 1.0 < Tan(Semi-FOV) / CT9 < 1.5.

[0011] In one embodiment, the air gap T12 between the first lens and the second lens on the optical axis, the air gap T23 between the second lens and the third lens on the optical axis, and the air gap T34 between the third lens and the fourth lens on the optical axis satisfy: (T12 + T23) < T34.

[0012] In one embodiment, the radius of curvature R1 of the object side surface of the first lens, the radius of curvature R2 of the image side surface of the first lens, and the refractive index N1 of the first lens satisfy: R1*N1 / R2 < 0.5.

[0013] In one embodiment, the radius of curvature R4 of the image side surface of the second lens and the refractive index N2 of the second lens satisfy: 2.5 < R4 / N2 < 3.5.

[0014] In one embodiment, the Abbe number V2 of the second lens and the radius of curvature R3 of the object side surface of the second lens satisfy: 2.0 < V2 / R3 < 2.5.

[0015] In one embodiment, the effective focal length f3 of the third lens and the radius of curvature R6 of the image side surface of the third lens satisfy: 2.5 < f3 / R6 < 4.0.

[0016] In one embodiment, the radius of curvature R14 of the image side surface of the seventh lens and the Abbe number V7 of the seventh lens satisfy: -2.5 < R14 / V7 < 0.

[0017] Another aspect of the present application provides an optical imaging lens, which sequentially includes, from the object side to the image side along the optical axis: a first lens with a focal power, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, and a ninth lens, with an air gap between any two adjacent lenses; the third lens has a positive focal power; the object side surface of the fourth lens is concave, and the image side surface of the fourth lens is concave; wherein, the effective focal length f2 of the second lens and the effective focal length f3 of the third lens can satisfy: -3.0 < f3 / f2 < -2.0. By reasonably controlling the ratio of the focal power of the third lens to the focal power of the second lens within this range, the optical sensitivity of the third lens and the optical sensitivity of the second lens can be effectively reduced, which is more conducive to realizing the mass production of the second lens and the third lens.

[0018] In one embodiment, the effective focal length f1 of the first lens and the effective focal length f5 of the fifth lens can satisfy: 3.5 < f5 / f1 < 7.0.

[0019] In one embodiment, half of the diagonal length of the effective pixel region on the imaging surface ImgH and the distance T89 between the eighth lens and the ninth lens on the optical axis can satisfy: 6.0 < ImgH / T89 < 7.0.

[0020] In one embodiment, the total effective focal length f of the optical imaging lens, the effective focal length f8 of the eighth lens, and the effective focal length f9 of the ninth lens can satisfy: 1.0 < f / (f8 + f9) < 1.5.

[0021] In one embodiment, the on-axis distance TTL from the object side surface of the first lens to the imaging surface and the f-number Fno of the optical imaging lens can satisfy: 4.5mm < TTL / Fno < 5.0mm.

[0022] In one embodiment, the central thickness CT1 of the first lens on the optical axis and the central thickness CT8 of the eighth lens on the optical axis can satisfy: 1.0 < CT8 / CT1 < 1.5.

[0023] In one embodiment, half of the maximum field of view angle Semi-FOV of the optical imaging lens and the central thickness CT9 of the ninth lens on the optical axis can satisfy: 1.0 < Tan(Semi-FOV) / CT9 < 1.5.

[0024] In one embodiment, the distance T12 between the first lens and the second lens on the optical axis, the distance T23 between the second lens and the third lens on the optical axis, and the distance T34 between the third lens and the fourth lens on the optical axis can satisfy: (T12 + T23) < T34.

[0025] In one embodiment, the radius of curvature R1 of the object side surface of the first lens, the radius of curvature R2 of the image side surface of the first lens, and the refractive index N1 of the first lens may satisfy: R1×N1 / R2 < 0.5.

[0026] In one embodiment, the radius of curvature R4 of the image side surface of the second lens and the refractive index N2 of the second lens may satisfy: 2.5 < R4 / N2 < 3.5.

[0027] In one embodiment, the Abbe number V2 of the second lens and the radius of curvature R3 of the object side surface of the second lens may satisfy: 2.0 < V2 / R3 < 2.5.

[0028] In one embodiment, the effective focal length f3 of the third lens and the radius of curvature R6 of the image side surface of the third lens may satisfy: 2.5 < f3 / R6 < 4.0.

[0029] In one embodiment, the radius of curvature R14 of the image side surface of the seventh lens and the Abbe number V7 of the seventh lens may satisfy: -2.5 < R14 / V7 < 0.

[0030] This application uses nine lenses. By reasonably distributing the optical power, surface shape, central thickness of each lens, and the axial spacing between each lens, etc., the imaging effect of a large image plane of the optical imaging lens is achieved. At the same time, it has a good processing technology. While obtaining higher imaging quality, it is conducive to realizing mass production and helps to ensure the stability of processing and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In combination with the accompanying drawings, through the following detailed description of non-limiting embodiments, other features, objectives, and advantages of this application will become more obvious. In the drawings:

[0032] Figure 1 Shows a schematic structural diagram of an optical imaging lens group according to Embodiment 1 of this application; Figures 2A to 2D Respectively show the axial chromatic aberration curve, astigmatism curve, distortion curve, and lateral chromatic aberration curve of the optical imaging lens group of Embodiment 1;

[0033] Figure 3 Shows a schematic structural diagram of an optical imaging lens group according to Embodiment 2 of this application; Figures 4A to 4D Respectively show the axial chromatic aberration curve, astigmatism curve, distortion curve, and lateral chromatic aberration curve of the optical imaging lens group of Embodiment 2;

[0034] Figure 5 Shows a schematic structural diagram of an optical imaging lens group according to Embodiment 3 of this application; Figures 6A to 6D Respectively show the axial chromatic aberration curve, astigmatism curve, distortion curve, and lateral chromatic aberration curve of the optical imaging lens group of Embodiment 3;

[0035] Figure 7 Shows a schematic structural diagram of an optical imaging lens group according to Embodiment 4 of the present application; Figures 8A to 8D Respectively show the axial chromatic aberration curve, astigmatism curve, distortion curve, and lateral chromatic aberration curve of the optical imaging lens group of Embodiment 4;

[0036] Figure 9 Shows a schematic structural diagram of an optical imaging lens group according to Embodiment 5 of the present application; Figures 10A to 10D Respectively show the axial chromatic aberration curve, astigmatism curve, distortion curve, and lateral chromatic aberration curve of the optical imaging lens group of Embodiment 5;

[0037] Figure 11 Shows a schematic structural diagram of an optical imaging lens group according to Embodiment 6 of the present application; Figures 12A to 12D Respectively show the axial chromatic aberration curve, astigmatism curve, distortion curve, and lateral chromatic aberration curve of the optical imaging lens group of Embodiment 6. Detailed implementation manners

[0038] To better understand the present application, more detailed descriptions of various aspects of the present application will be made with reference to the accompanying drawings. It should be understood that these detailed descriptions are only descriptions of exemplary embodiments of the present application and do not limit the scope of the present application in any way. Throughout the specification, the same 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.

[0039] It should be noted that in this specification, the expressions such as first, second, and third are only used to distinguish one feature from another feature and do not represent any limitation on the features. Therefore, without departing from the teachings of the present application, the first lens discussed below may also be referred to as the second lens or the third lens.

[0040] In the drawings, for the sake of clarity, the thickness, size, and shape of the lenses have been slightly exaggerated. Specifically, the spherical or aspherical shapes shown in the drawings are shown by way of example. That is, the spherical or aspherical shapes are not limited to the spherical or aspherical shapes shown in the drawings. The drawings are only examples and are not drawn strictly to scale.

[0041] In this document, the surface of each lens closest to the object to be photographed is called the object side surface of the lens, and the surface of each lens closest to the imaging surface is called the image side surface of the lens.

[0042] It should also be understood that the terms "comprise", "comprising", "have", "including" and / or "containing", when used in this specification, denote the presence of the stated features, elements and / or components, but do not preclude the presence or addition of one or more other features, elements, components and / or combinations thereof. In addition, when an expression such as "at least one of..." appears after a list of listed features, it modifies the entire list of listed features rather than individual elements in the list. In addition, when describing embodiments of the present application, the use of "may" means "one or more embodiments of the present application". And the term "exemplary" is intended to refer to an example or illustration.

[0043] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It should also be understood that terms (such as those defined in a common dictionary) should be interpreted as having a meaning consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0044] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0045] The features, principles and other aspects of the present application will be described in detail below.

[0046] The optical imaging lens according to an exemplary embodiment of the present application may include, for example, nine lenses having optical power, namely, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens and a ninth lens. These nine lenses are arranged in order from the object side to the image side along the optical axis.

[0047] Exemplarily, each lens is non-bonded, that is, there is an air gap between any two adjacent lenses.

[0048] In an exemplary embodiment, the first lens has positive or negative optical power; the second lens has positive or negative optical power; the third lens may have positive optical power; the fourth lens has positive or negative optical power; the fifth lens has positive or negative optical power; the sixth lens has positive or negative optical power; the seventh lens has positive or negative optical power; the eighth lens has positive or negative optical power; the ninth lens has positive or negative optical power. By reasonably controlling the optical power, the curvature of the lens surface of each component of the lens and the air gap between different lenses, the imaging quality of the optical imaging lens can be effectively improved.

[0049] In an exemplary embodiment, the optical imaging lens of the present application can satisfy the conditional formula 6.0 < ImgH / T89 < 7.0, where ImgH is half of the diagonal length of the effective pixel region on the imaging surface, and T89 is the air gap between the eighth lens and the ninth lens on the optical axis. When the optical imaging lens satisfies 6.0 < ImgH / T89 < 7.0, an imaging effect with a large image surface can be achieved, and at the same time, it has a good processing technology. More specifically, ImgH and T89 can satisfy 6.10 < ImgH / T89 < 6.55.

[0050] In an exemplary embodiment, the optical imaging lens of the present application can satisfy the conditional formula -3.0 < f3 / f2 < -2.0, where f2 is the effective focal length of the second lens, and f3 is the effective focal length of the third lens. By reasonably controlling the ratio of the optical power of the third lens to the optical power of the second lens within this range, the optical sensitivity of the third lens and the optical sensitivity of the second lens can be effectively reduced, which is more conducive to the mass production of the second lens and the third lens. More specifically, f3 and f2 can satisfy -2.60 < f3 / f2 < -2.15.

[0051] In an exemplary embodiment, the optical imaging lens of the present application can satisfy the conditional formula 3.5 < f5 / f1 < 7.0, where f1 is the effective focal length of the first lens, and f5 is the effective focal length of the fifth lens. By constraining the ratio of the focal length of the fifth lens to the focal length of the first lens within this range, the aberration can be better balanced. More specifically, f5 and f1 can satisfy 3.65 < f5 / f1 < 6.87.

[0052] In an exemplary embodiment, the optical imaging lens of the present application can satisfy the conditional formula 1.0 < f / (f8 + f9) < 1.5, where f is the total effective focal length of the optical imaging lens, f8 is the effective focal length of the eighth lens, and f9 is the effective focal length of the ninth lens. By constraining the ratio of the total effective focal length of the optical imaging lens to the sum of the effective focal lengths of the eighth lens and the ninth lens within this range, it is beneficial to obtain good imaging quality and achieve the effect of high resolution.

[0053] In an exemplary embodiment, the optical imaging lens of the present application can satisfy the conditional formula 4.5mm < TTL / Fno < 5.0mm, where TTL is the on-axis distance from the object side of the first lens to the imaging surface, and Fno is the aperture number of the optical imaging lens. By reasonably controlling the ratio of the on-axis distance from the object side of the first lens to the imaging surface to the aperture number of the optical imaging lens within this range, the lens can be made thinner and lighter while ensuring the light transmission of the optical imaging lens. More specifically, TTL and Fno can satisfy 4.65 < TTL / Fno < 4.85.

[0054] In an exemplary embodiment, the optical imaging lens of the present application can satisfy the conditional formula 1.0 < CT8 / CT1 < 1.5, where CT1 is the central thickness of the first lens on the optical axis, and CT8 is the central thickness of the eighth lens on the optical axis. By controlling the ratio of the central thickness of the first lens on the optical axis to the central thickness of the eighth lens on the optical axis within this range, it is beneficial to reduce the aberration of the entire optical imaging lens and shorten the total length of the entire optical imaging lens. More specifically, CT8 and CT1 can satisfy 1.20 < CT8 / CT1 < 1.30.

[0055] In an exemplary embodiment, the optical imaging lens of the present application can satisfy the conditional formula 1.0 < Tan(Semi-FOV) / CT9 < 1.5, where Semi-FOV is half of the maximum field of view angle of the optical imaging lens, and CT9 is the central thickness of the ninth lens on the optical axis. By controlling the ratio of half of the maximum field of view angle of the optical imaging lens to the central thickness of the ninth lens on the optical axis within this range, it is beneficial to improve the imaging quality of the large image plane of the optical imaging lens and improve the processing stability at the same time. More specifically, Semi-FOV and CT9 can satisfy 1.20 < Tan(Semi-FOV) / CT9 < 1.35.

[0056] In an exemplary embodiment, the optical imaging lens of the present application can satisfy the conditional formula (T12 + T23) < T34, where T12 is the spacing distance between the first lens and the second lens on the optical axis, T23 is the air spacing distance between the second lens and the third lens on the optical axis, and T34 is the spacing distance between the third lens and the fourth lens on the optical axis. By reasonably controlling the air spacing between the first lens and the second lens on the optical axis, the air spacing between the second lens and the third lens on the optical axis, and the air spacing between the third lens and the fourth lens on the optical axis to satisfy (T12 + T23) < T34, it helps to achieve a uniform distribution of lens sizes and ensure assembly stability.

[0057] In an exemplary embodiment, the optical imaging lens of the present application can satisfy the conditional formula R1×N1 / R2 < 0.5, where R1 is the curvature radius of the object side surface of the first lens, R2 is the curvature radius of the image side surface of the first lens, and N1 is the refractive index of the first lens. By reasonably controlling the curvature radius of the object side surface of the first lens, the curvature radius of the image side surface of the first lens, and the refractive index of the first lens to satisfy R1×N1 / R2 < 0.5, it is beneficial for the optical system to have a larger aperture and improve the overall brightness of imaging. More specifically, R1, R2, and N1 can satisfy R1×N1 / R2 < 0.45.

[0058] In an exemplary embodiment, the optical imaging lens of the present application can satisfy the conditional formula 2.5 < R4 / N2 < 3.5, where R4 is the radius of curvature of the image side of the second lens, and N2 is the refractive index of the second lens. By controlling the ratio of the radius of curvature of the image side of the second lens to the refractive index of the second lens within this range, it is beneficial to improve axial chromatic aberration. More specifically, 2.80 < R4 / N2 < 3.30.

[0059] In an exemplary embodiment, the optical imaging lens of the present application can satisfy the conditional formula 2.0 < V2 / R3 < 2.5, where V2 is the Abbe number of the second lens, and R3 is the radius of curvature of the object side of the second lens. By controlling the ratio of the Abbe number of the second lens to the radius of curvature of the object side of the second lens within this range, it is beneficial to improve magnification chromatic aberration. More specifically, 2.10 < V2 / R3 < 2.35.

[0060] In an exemplary embodiment, the optical imaging lens of the present application can satisfy the conditional formula 2.5 < f3 / R6 < 4.0, where f3 is the effective focal length of the third lens, and R6 is the radius of curvature of the image side of the third lens. By reasonably controlling the ratio of the effective focal length of the third lens to the radius of curvature of the image side of the third lens within this range, it is beneficial to reduce the sensitivity of the third lens. More specifically, f3 and R6 can satisfy 2.52 < f3 / R6 < 3.66.

[0061] In an exemplary embodiment, the optical imaging lens of the present application can satisfy the conditional formula -2.5 < R14 / V7 < 0, where R14 is the radius of curvature of the image side of the seventh lens, and V7 is the Abbe number of the seventh lens. By reasonably controlling the ratio of the radius of curvature of the image side of the seventh lens to the Abbe number of the seventh lens within this range, it is possible to achieve favorable improvement of magnification chromatic aberration while avoiding excessive bending of the seventh lens. More specifically, R14 and V7 can satisfy -2.35 < R14 / V7 < -0.44.

[0062] In an exemplary embodiment, the above-mentioned imaging lens may further include at least one aperture stop. The aperture stop can be set at an appropriate position as needed. For example, it is set between the object side and the first lens. For example, it is set between the second lens and the third lens. Optionally, the above-mentioned imaging lens may further include a filter for correcting color deviation and / or a protective glass for protecting the photosensitive element located on the imaging surface.

[0063] The imaging lens according to the above-mentioned embodiment of the present application can adopt multiple lenses, such as the nine lenses described above. By reasonably distributing the optical power, surface shape, central thickness of each lens, and the on-axis spacing between each lens, etc., it is possible to effectively improve the imaging quality of the large image plane of the lens, reduce the sensitivity of the optical imaging lens, and improve the processability of the optical imaging lens, making the optical imaging lens more conducive to production and processing and applicable to portable electronic products.

[0064] However, those skilled in the art should understand that, without departing from the technical solutions claimed in this application, the number of lenses constituting the optical imaging lens can be changed to obtain the various results and advantages described in this specification. For example, although nine lenses are described as an example in the embodiments, the imaging lens is not limited to including nine lenses. If necessary, the optical imaging lens may further include other numbers of lenses.

[0065] The following further describes specific embodiments of the imaging lens applicable to the above embodiments with reference to the accompanying drawings.

[0066] Example 1

[0067] The following refers to Figures 1 to 2D Describe the optical imaging lens according to Embodiment 1 of this application. Figure 1 The structural schematic diagram of the optical imaging lens according to Embodiment 1 of this application is shown.

[0068] As Figure 1 shown, the optical imaging lens sequentially includes, from the object side to the image side along the optical axis: a diaphragm STO, 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, an eighth lens E8, a ninth lens E9, and a filter E10.

[0069] The first lens E1 has a positive optical power, its object side surface S1 is convex, and its image side surface S2 is concave. The second lens E2 has a negative optical power, its object side surface S3 is convex, and its image side surface S4 is concave. The third lens E3 has a positive optical power, its object side surface S5 is convex, and its image side surface S6 is concave. The fourth lens E4 has a negative optical power, its object side surface S7 is concave, and its image side surface S8 is concave. The fifth lens E5 has a positive optical power, its object side surface S9 is concave, and its image side surface S10 is convex. The sixth lens E6 has a negative optical power, its object side surface S11 is convex, and its image side surface S12 is concave. The seventh lens E7 has a positive optical power, its object side surface S13 is convex, and its image side surface S14 is convex. The eighth lens E8 has a positive optical power, its object side surface S15 is convex, and its image side surface S16 is concave. The ninth lens E9 has a negative optical power, its object side surface S17 is concave, and its image side surface S18 is concave. The filter E10 has an object side surface S19 and an image side surface S20. The imaging lens has an imaging surface S21, and light from an object sequentially passes through the surfaces S1 to S20 and finally forms an image on the imaging surface S21.

[0070] Table 1 shows the basic parameter table of the optical imaging lens of Embodiment 1, where the units of the radius of curvature, thickness / distance, and focal length are all millimeters (mm).

[0071]

[0072] Table 1

[0073] In Example 1, the value of the total effective focal length f of the optical imaging lens is 7.97 mm, the value of the f-number Fno of the optical imaging lens is 1.99, the value of the on-axis distance TTL from the object side S1 of the first lens E1 to the imaging surface S21 is 9.46 mm, the value of half of the diagonal length of the effective pixel region on the imaging surface S21, ImgH, is 8.00 mm, and the value of half of the maximum field of view, Semi-FOV, is 44.2°.

[0074] In Example 1, the object side and the image side of any one of the first lens E1 to the ninth lens E9 are aspherical surfaces, and the surface shape x of each aspherical lens can be defined by, but not limited to, the following aspherical formula:

[0075]

[0076] where x is the sagitta, the distance from the vertex of the aspherical surface at a position with a height of h along the optical axis; c is the paraxial curvature of the aspherical surface, c = 1 / R (i.e., the paraxial curvature c is the reciprocal of the radius of curvature R in Table 1 above); k is the conic coefficient; Ai is the correction coefficient of the i-th order of the aspherical surface. Tables 2 and 3 below give the higher-order coefficients A 4 、A 6 、A 8 、A 10 、A 12 、A 14 、A 16 、A 18 、A 20 、A 22 、A 24 、A 26 、A 28 and A 30 .

[0077] Surface number A4 A6 A8 A10 A12 A14 A16 S1 -1.5140E-02 -9.5510E-03 -3.2974E-03 -8.2146E-04 -2.5955E-04 -3.8320E-05 -3.7964E-05 S2 -1.6870E-02 -2.2185E-03 -2.1846E-03 -3.5235E-04 -1.8741E-04 -6.9288E-05 -4.2553E-05 S3 6.4905E-02 9.7944E-03 -1.6272E-03 -5.2081E-05 -1.7790E-04 -1.1583E-04 -1.1982E-04 S4 9.6242E-02 1.1495E-02 -1.4110E-03 -8.7248E-04 -5.0311E-04 -1.8664E-04 -1.0199E-04 S5 -2.0393E-03 2.7581E-02 6.5278E-03 6.3145E-04 -2.4861E-04 -1.2638E-04 -5.7110E-05 S6 3.8109E-03 2.0269E-02 6.8956E-03 1.4978E-03 3.0929E-04 3.4207E-05 3.0566E-05 S7 -2.3262E-01 -2.4611E-02 -4.7327E-03 -1.9518E-03 -6.4341E-04 -4.1578E-04 -6.1143E-05 S8 -3.3758E-01 -3.1992E-02 1.9442E-03 9.8833E-04 1.6823E-03 4.7782E-04 6.1473E-04 S9 -3.3619E-01 -2.5882E-02 2.3985E-02 6.0365E-03 3.9066E-03 5.3649E-04 2.4160E-04 S10 -3.7826E-01 -4.0580E-02 1.7171E-02 1.1842E-03 3.7850E-03 8.0672E-04 1.0615E-03 S11 -4.8805E-01 -1.2817E-02 -2.4547E-02 -6.3374E-03 -1.5572E-03 -1.0471E-03 4.5198E-04 S12 -6.9622E-01 5.2697E-02 -2.1723E-02 6.9221E-03 1.7976E-03 1.0069E-03 7.2939E-04 S13 -8.5088E-01 5.9185E-01 3.2407E-01 -5.7758E-02 -1.7234E-01 -1.3727E-01 -6.6304E-02 S14 -6.9842E-01 1.1939E-01 2.0149E-02 -1.0081E-02 -4.3250E-03 3.6580E-03 2.3446E-04 S15 -3.8808E+00 1.6735E+00 5.7923E-01 4.0624E-01 3.4079E-01 2.0969E-01 1.1163E-01 S16 -2.0140E+00 1.9703E-01 4.5693E-02 -4.5366E-02 3.1109E-02 -3.3999E-03 9.0962E-04 S17 2.6645E+00 6.3992E-02 -2.3188E-01 1.2181E-01 -3.7527E-02 -1.1093E-02 1.8638E-02 S18 -4.5717E+00 5.8410E-01 -1.2779E-01 1.0207E-01 -5.6576E-02 -4.6362E-03 -3.0704E-03

[0078] Table 2

[0079]

[0080]

[0081] Table 3

[0082] Figure 2A Shows the axial chromatic aberration curve of the optical imaging lens of Example 1, which represents the deviation of the converging focal points of light rays with different wavelengths after passing through the lens. Figure 2BThe astigmatism curve of the optical imaging lens of Embodiment 1 is shown, which represents the curvature of the meridional image plane and the curvature of the sagittal image plane. Figure 2C The distortion curve of the optical imaging lens of Embodiment 1 is shown, which represents the distortion magnitude values corresponding to different field angles of view. Figure 2D The longitudinal chromatic aberration curve of the optical imaging lens of Embodiment 1 is shown, which represents the deviation of different image heights on the imaging plane after light passes through the lens. According to Figures 2A to 2D it can be known that the optical imaging lens given in Embodiment 1 can achieve good imaging quality.

[0083] Example 2

[0084] The following refers to Figures 3 to 4D Describe the optical imaging lens according to Embodiment 2 of the present application. In this embodiment and the following embodiments, for the sake of simplicity, some descriptions similar to those in Embodiment 1 will be omitted. Figure 3 The structural schematic diagram of the optical imaging lens according to Embodiment 2 of the present application is shown.

[0085] As Figure 3 shown, the optical imaging lens sequentially includes, from the object side to the image side along the optical axis: a stop STO, 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, an eighth lens E8, a ninth lens E9, and a filter E10.

[0086] The first lens E1 has a positive optical power, its object side surface S1 is a convex surface, and its image side surface S2 is a concave surface. The second lens E2 has a negative optical power, its object side surface S3 is a convex surface, and its image side surface S4 is a concave surface. The third lens E3 has a positive optical power, its object side surface S5 is a convex surface, and its image side surface S6 is a concave surface. The fourth lens E4 has a negative optical power, its object side surface S7 is a concave surface, and its image side surface S8 is a concave surface. The fifth lens E5 has a positive optical power, its object side surface S9 is a concave surface, and its image side surface S10 is a convex surface. The sixth lens E6 has a negative optical power, its object side surface S11 is a concave surface, and its image side surface S12 is a convex surface. The seventh lens E7 has a negative optical power, its object side surface S13 is a concave surface, and its image side surface S14 is a convex surface. The eighth lens E8 has a positive optical power, its object side surface S15 is a convex surface, and its image side surface S16 is a concave surface. The ninth lens E9 has a negative optical power, its object side surface S17 is a concave surface, and its image side surface S18 is a concave surface. The filter E10 has an object side surface S19 and an image side surface S20. The optical imaging lens has an imaging surface S21, and light from an object sequentially passes through each surface S1 to S20 and finally forms an image on the imaging surface S21.

[0087] In Embodiment 2, the value of the total effective focal length f of the optical imaging lens is 7.84 mm, the value of the f-number Fno of the optical imaging lens is 1.98, the value of the on-axis distance TTL from the object side surface S1 of the first lens E1 to the imaging surface S21 is 9.34 mm, the value of half of the diagonal length of the effective pixel region on the imaging surface S21, ImgH, is 8.00 mm, and the value of half of the maximum field of view, Semi-FOV, is 44.8°.

[0088] Table 4 shows the basic parameter table of the optical imaging lens of Embodiment 2, where the units of the radius of curvature, thickness / distance, and focal length are all millimeters (mm). Tables 5 and 6 show the high-order term coefficients of the aspherical mirror surfaces that can be used in Embodiment 2, where each aspherical surface type can be defined by the formula (1) given in Embodiment 1 above.

[0089]

[0090]

[0091] Table 4

[0092] Surface number A4 A6 A8 A10 A12 A14 A16 S1 -1.7345E-02 -9.3330E-03 -3.3281E-03 -8.0442E-04 -3.3015E-04 -4.0626E-05 -3.5718E-05 S2 -1.6542E-02 -3.2992E-03 -1.8776E-03 -4.9367E-04 -1.8209E-04 1.4889E-05 2.5263E-05 S3 6.0170E-02 7.7815E-03 -1.1403E-03 -3.3925E-04 2.1569E-05 8.1780E-05 1.5870E-05 S4 9.1104E-02 1.1832E-02 -5.3400E-04 -8.7941E-04 -4.0287E-04 1.6246E-05 5.9180E-05 S5 -5.6120E-03 2.8625E-02 7.6257E-03 6.9165E-04 -4.1238E-04 -1.0009E-04 1.4123E-05 S6 -2.0756E-04 2.0651E-02 7.9745E-03 1.6261E-03 2.6394E-04 -2.9161E-05 3.5345E-05 S7 -2.5407E-01 -2.1448E-02 -4.2035E-03 -2.0732E-03 -7.1476E-04 -3.6981E-04 -1.5642E-05 S8 -3.5738E-01 -3.0641E-02 1.8213E-03 -8.8316E-04 6.6356E-04 9.4392E-05 5.4940E-04 S9 -3.3487E-01 -2.7285E-02 2.4712E-02 6.7743E-03 4.4346E-03 1.0346E-03 8.5598E-04 S10 -3.8739E-01 -3.0437E-02 1.5817E-02 4.1705E-03 4.9832E-03 1.4807E-03 1.6027E-03 S11 -5.1113E-01 -8.3501E-03 -2.4238E-02 -8.5498E-03 -1.8793E-03 -8.3953E-04 1.1374E-03 S12 -6.8331E-01 3.3781E-02 -2.1851E-02 7.1671E-03 6.0587E-03 1.3165E-03 -5.5169E-04 S13 -7.7101E-01 -9.8063E-02 3.5266E-02 8.6072E-03 6.5635E-03 4.6485E-03 1.6373E-03 S14 -7.3488E-01 9.1395E-02 1.6586E-02 -8.6430E-03 -2.8799E-03 2.8085E-03 -1.0541E-04 S15 -2.9832E+00 3.4844E-01 4.3201E-02 -1.5028E-02 -3.9951E-04 2.8300E-03 -2.6527E-04 S16 -1.9966E+00 1.6909E-01 6.3330E-02 -4.0865E-02 3.9289E-02 -4.2453E-03 -2.0628E-03 S17 2.7889E+00 4.0820E-02 -2.3235E-01 1.2309E-01 -4.2118E-02 -8.0646E-03 1.6106E-02 S18 -4.5536E+00 5.7799E-01 -9.4599E-02 1.0086E-01 -6.3579E-02 -6.2288E-03 2.9048E-03

[0093] Table 5

[0094]

[0095]

[0096] Table 6

[0097] Figure 4A shows the axial chromatic aberration curve of the optical imaging lens of Embodiment 2, which represents the deviation of the convergence focal points of light rays of different wavelengths after passing through the lens. Figure 4B shows the astigmatism curve of the optical imaging lens of Embodiment 2, which represents the meridional image plane curvature and the sagittal image plane curvature. Figure 4C shows the distortion curve of the optical imaging lens of Embodiment 2, which represents the distortion magnitude values corresponding to different field of view angles. Figure 4D shows the lateral chromatic aberration curve of the optical imaging lens of Embodiment 2, which represents the deviation of different image heights of light rays on the imaging surface after passing through the lens. According to Figures 4A to 4D it can be seen that the optical imaging lens given in Embodiment 2 can achieve good imaging quality.

[0098] Example 3

[0099] The following refers to Figures 5 to 6D to describe the optical imaging lens according to Embodiment 3 of the present application. Figure 5 shows a schematic structural diagram of the optical imaging lens according to Embodiment 3 of the present application.

[0100] As shown Figure 5 in FIG. 1, the optical imaging lens sequentially includes, from the object side to the image side along the optical axis: a stop STO, 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, an eighth lens E8, a ninth lens E9, and a filter E10.

[0101] The first lens E1 has a positive optical power, its object side surface S1 is convex, and its image side surface S2 is concave. The second lens E2 has a negative optical power, its object side surface S3 is convex, and its image side surface S4 is concave. The third lens E3 has a positive optical power, its object side surface S5 is convex, and its image side surface S6 is concave. The fourth lens E4 has a negative optical power, its object side surface S7 is concave, and its image side surface S8 is concave. The fifth lens E5 has a positive optical power, its object side surface S9 is concave, and its image side surface S10 is convex. The sixth lens E6 has a positive optical power, its object side surface S11 is concave, and its image side surface S12 is convex. The seventh lens E7 has a negative optical power, its object side surface S13 is concave, and its image side surface S14 is convex. The eighth lens E8 has a positive optical power, its object side surface S15 is convex, and its image side surface S16 is concave. The ninth lens E9 has a negative optical power, its object side surface S17 is concave, and its image side surface S18 is concave. The filter E10 has an object side surface S19 and an image side surface S20. The optical imaging lens has an imaging surface S21, and light from an object sequentially passes through the surfaces S1 to S20 and finally forms an image on the imaging surface S21.

[0102] In Embodiment 3, the value of the total effective focal length f of the camera lens is 7.83 mm, the value of the f-number Fno of the camera lens is 1.98, the value of the on-axis distance TTL from the object side surface S1 of the first lens E1 to the imaging surface S21 is 9.31 mm, the value of half of the diagonal length of the effective pixel region on the imaging surface S21, ImgH, is 8.00 mm, and the value of half of the maximum field of view, Semi-FOV, is 44.8°.

[0103] Table 7 shows the basic parameter table of the optical imaging lens of Embodiment 3, where the units of the radius of curvature, thickness / distance, and focal length are all millimeters (mm). Tables 8 and 9 show the higher-order term coefficients that can be used for each aspherical mirror surface in Embodiment 3, where each aspherical surface type can be defined by the formula (1) given in Embodiment 1 above.

[0104]

[0105] Table 7

[0106] Surface number A4 A6 A8 A10 A12 A14 A16 S1 -1.6629E-02 -9.2474E-03 -3.3569E-03 -7.9573E-04 -3.1077E-04 -4.1736E-05 -3.5885E-05 S2 -1.6201E-02 -3.4860E-03 -1.8443E-03 -3.3239E-04 -1.8488E-04 7.5460E-05 2.7527E-05 S3 6.0433E-02 7.6909E-03 -8.5588E-04 -7.5627E-05 2.8721E-05 1.2955E-04 -3.4345E-05 S4 9.0732E-02 1.1786E-02 -4.0807E-04 -7.6549E-04 -3.6387E-04 2.9094E-05 8.6741E-06 S5 -5.0584E-03 2.8631E-02 7.7190E-03 7.1388E-04 -3.0251E-04 -4.4778E-05 5.0091E-05 S6 2.9132E-04 2.0694E-02 7.9298E-03 1.5960E-03 3.0826E-04 3.7766E-06 6.3783E-05 S7 -2.4968E-01 -2.1970E-02 -4.6894E-03 -2.2083E-03 -6.5559E-04 -3.3562E-04 6.2592E-05 S8 -3.5498E-01 -3.1162E-02 2.0313E-03 -8.0904E-04 9.3874E-04 6.7752E-05 6.7174E-04 S9 -3.3512E-01 -2.8767E-02 2.5044E-02 6.4617E-03 4.5130E-03 7.4619E-04 8.0923E-04 S10 -3.9215E-01 -2.9554E-02 1.5796E-02 3.9317E-03 4.9604E-03 1.2312E-03 1.4323E-03 S11 -5.1975E-01 -7.4270E-03 -2.4209E-02 -8.0287E-03 -1.7964E-03 -9.6428E-04 9.4852E-04 S12 -6.8047E-01 3.3579E-02 -2.0157E-02 6.7802E-03 5.2523E-03 1.6393E-03 1.3483E-04 S13 -7.7506E-01 -8.9733E-02 4.1544E-02 9.8865E-03 4.4017E-03 3.0179E-03 1.5602E-03 S14 -7.3894E-01 9.1438E-02 1.6755E-02 -8.4223E-03 -2.7443E-03 2.9507E-03 -1.4935E-04 S15 -2.9804E+00 3.4817E-01 4.4737E-02 -1.5001E-02 -2.6140E-04 2.8272E-03 -2.7198E-04 S16 -2.0012E+00 1.7721E-01 6.4229E-02 -3.9873E-02 3.6851E-02 -4.1694E-03 -1.6658E-03 S17 2.7883E+00 4.0521E-02 -2.3159E-01 1.2471E-01 -4.1514E-02 -8.1806E-03 1.6737E-02 S18 -4.5782E+00 5.7875E-01 -9.2966E-02 9.9188E-02 -6.3078E-02 -5.8491E-03 1.6052E-03

[0107] Table 8

[0108] Surface number A18 A20 A22 A24 A26 A28 A30 S1 -4.5293E-06 -4.0582E-05 -2.5231E-05 -2.7050E-05 -8.5342E-06 -4.7494E-06 3.5246E-07 S2 2.0970E-05 -2.3355E-05 -9.5004E-06 -7.1764E-06 2.4992E-05 1.4825E-05 1.2971E-05 S3 -1.0821E-04 -1.2499E-04 -1.1196E-04 -8.6487E-05 -5.4516E-05 -3.3603E-05 -2.2356E-05 S4 -5.2299E-05 -7.0442E-05 -5.8984E-05 -3.7411E-05 -1.5620E-05 -9.3477E-06 9.3292E-07 S5 2.5771E-05 -5.1331E-06 -1.0474E-05 -6.0463E-06 -4.9822E-06 -3.4513E-06 -4.4790E-06 S6 -2.0551E-06 2.4247E-05 -6.6154E-06 9.4704E-06 -8.3100E-06 -2.3840E-06 -6.8676E-06 S7 -9.3984E-06 2.5966E-05 -2.9060E-05 -1.8185E-05 -2.4189E-05 -1.3179E-05 -4.7976E-06 S8 1.7597E-04 1.8842E-04 -2.8879E-05 3.6420E-06 -1.2836E-05 -3.2105E-06 -6.6205E-06 S9 -1.5115E-04 -1.0842E-04 -2.5624E-04 -6.3423E-05 1.0729E-05 1.6259E-05 1.0687E-05 S10 1.0854E-04 2.9829E-04 -9.4633E-05 6.5653E-05 2.5447E-05 2.7270E-05 -2.2192E-07 S11 -5.9464E-06 3.5823E-04 -1.7683E-04 1.1257E-04 2.3913E-05 1.8917E-05 1.4102E-05 S12 -6.0803E-04 6.4306E-04 4.6917E-05 -1.6034E-04 -6.3776E-04 -1.6496E-04 -6.6427E-05 S13 3.1984E-04 4.4515E-04 3.0456E-04 5.7328E-04 7.3323E-05 -2.4668E-05 -6.9039E-05 S14 -3.3651E-04 1.4075E-04 7.1936E-05 8.3301E-05 -1.4802E-04 2.0421E-05 1.5126E-05 S15 -1.0918E-03 3.2725E-04 1.5214E-04 -5.4840E-05 -2.5283E-05 5.6722E-06 4.0533E-07 S16 -2.6708E-03 3.9108E-04 -4.7723E-04 -1.3435E-05 1.3981E-04 -1.4006E-04 -1.7442E-04 S17 -1.2996E-02 3.5913E-03 -4.9650E-04 -2.4442E-04 -6.0347E-04 3.0227E-04 -1.6548E-04 S18 -5.5451E-04 3.4189E-03 -8.6453E-04 -1.6917E-03 -2.3525E-03 2.3887E-04 5.5120E-04

[0109] Table 9

[0110] Figure 6A shows the axial chromatic aberration curve of the optical imaging lens of Embodiment 3, which represents the deviation of the converging focal points of light rays of different wavelengths after passing through the lens. Figure 6B shows the astigmatism curve of the optical imaging lens of Embodiment 3, which represents the curvature of the meridional image plane and the curvature of the sagittal image plane. Figure 6C shows the distortion curve of the optical imaging lens of Embodiment 3, which represents the distortion magnitude values corresponding to different field angles. Figure 6D shows the lateral chromatic aberration curve of the optical imaging lens of Embodiment 3, which represents the deviation of different image heights on the imaging plane after the light rays pass through the lens. According to Figures 6A to 6D it can be seen that the optical imaging lens given in Embodiment 3 can achieve good imaging quality.

[0111] Example 4

[0112] The following refers to Figures 7 to 8D describes the optical imaging lens according to Embodiment 4 of the present application. Figure 7 shows a schematic structural diagram of the optical imaging lens according to Embodiment 4 of the present application.

[0113] As Figure 7 shown, the optical imaging lens sequentially includes, from the object side to the image side along the optical axis: a diaphragm STO, 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, an eighth lens E8, a ninth lens E9, and a filter E10.

[0114] The first lens E1 has a positive optical power, its object side surface S1 is a convex surface, and its image side surface S2 is a concave surface. The second lens E2 has a negative optical power, its object side surface S3 is a convex surface, and its image side surface S4 is a concave surface. The third lens E3 has a positive optical power, its object side surface S5 is a convex surface, and its image side surface S6 is a concave surface. The fourth lens E4 has a negative optical power, its object side surface S7 is a concave surface, and its image side surface S8 is a concave surface. The fifth lens E5 has a positive optical power, its object side surface S9 is a concave surface, and its image side surface S10 is a convex surface. The sixth lens E6 has a negative optical power, its object side surface S11 is a concave surface, and its image side surface S12 is a concave surface. The seventh lens E7 has a positive optical power, its object side surface S13 is a convex surface, and its image side surface S14 is a convex surface. The eighth lens E8 has a positive optical power, its object side surface S15 is a convex surface, and its image side surface S16 is a concave surface. The ninth lens E9 has a negative optical power, its object side surface S17 is a concave surface, and its image side surface S18 is a concave surface. The filter E10 has an object side surface S19 and an image side surface S20. The optical imaging lens has an imaging surface S21, and light from an object sequentially passes through each surface S1 to S20 and finally forms an image on the imaging surface S21.

[0115] In Embodiment 4, the value of the total effective focal length f of the optical imaging lens is 7.90 mm, the value of the f-number Fno of the optical imaging lens is 1.98, the value of the on-axis distance TTL from the object side surface S1 of the first lens E1 to the imaging surface S21 is 9.44 mm, the value of half of the diagonal length of the effective pixel region on the imaging surface S21, ImgH, is 8.00 mm, and the value of half of the maximum field of view, Semi-FOV, is 44.4°.

[0116] Table 10 shows the basic parameter table of the optical imaging lens of Embodiment 4, where the units of the radius of curvature, thickness / distance, and focal length are all millimeters (mm). Tables 11 and 12 show the higher-order term coefficients available for each aspherical mirror surface in Embodiment 4, where each aspherical surface type can be defined by the formula (1) given in Embodiment 1 above.

[0117]

[0118] Table 10

[0119]

[0120]

[0121] Table 11

[0122] Surface number A18 A20 A22 A24 A26 A28 A30 S1 1.5898E-06 -2.8149E-05 -1.0204E-05 -1.5014E-05 -3.5580E-06 -3.9782E-06 1.6735E-06 S2 1.5201E-05 -2.1151E-05 -1.9876E-05 -2.2943E-05 6.8106E-06 5.8788E-06 7.5814E-06 S3 7.2743E-06 5.7022E-06 -1.0841E-06 -8.3318E-06 -4.1331E-06 8.0545E-07 -5.9766E-06 S4 -1.2473E-05 -1.2810E-05 -1.2960E-05 -5.1977E-06 -1.7014E-06 -4.7535E-06 -2.0408E-06 S5 -3.0794E-06 -1.1668E-05 -8.4795E-06 -8.3750E-06 -7.5140E-06 -5.3349E-06 -3.4243E-06 S6 9.7065E-07 8.6182E-06 -5.6059E-06 5.2028E-06 -5.6545E-06 -2.3715E-06 -5.3476E-06 S7 1.7469E-05 6.3434E-05 7.0084E-06 4.1884E-06 -1.1263E-05 -5.4764E-06 -2.8091E-06 S8 6.5515E-04 4.1164E-04 9.6076E-05 3.7941E-05 -1.5243E-05 -3.4520E-06 -4.7204E-06 S9 -3.1619E-04 -2.1319E-04 -2.4397E-04 -8.3230E-05 -3.5496E-05 -5.2445E-07 6.4722E-06 S10 1.1562E-04 2.9925E-04 -9.8851E-06 1.5306E-04 4.7850E-05 4.3740E-05 9.0525E-06 S11 -1.5203E-04 2.7599E-04 -2.0687E-05 1.8604E-04 3.7055E-05 4.6625E-05 1.0529E-05 S12 -1.2525E-04 2.1179E-04 -1.5421E-05 1.0371E-04 -1.0638E-04 -2.2900E-05 -3.3975E-05 S13 -5.9835E-04 -1.0841E-04 -2.8826E-04 2.5714E-05 1.5065E-05 2.6143E-05 -2.7343E-06 S14 -5.0247E-04 1.5306E-04 -2.0139E-04 8.0796E-05 4.4283E-05 4.6494E-05 1.2538E-05 S15 -1.1422E-03 4.8422E-04 2.0392E-04 -5.2699E-05 -2.0899E-05 1.1314E-05 -6.4980E-06 S16 -2.6020E-03 5.2091E-04 5.8239E-04 2.6140E-04 1.8333E-04 -4.1922E-06 -6.3593E-05 S17 -1.2663E-02 4.2192E-03 -8.0305E-04 8.4366E-05 3.6483E-04 -5.3815E-04 2.3911E-04 S18 -2.3410E-04 2.3851E-03 -7.9620E-04 -2.2083E-03 -1.1692E-03 6.4196E-05 8.0236E-04

[0123] Table 12

[0124] Figure 8A Shows the axial chromatic aberration curve of the optical imaging lens of Embodiment 4, which represents the deviation of the converging focal points of light rays of different wavelengths after passing through the lens. Figure 8B Shows the astigmatism curve of the optical imaging lens of Embodiment 4, which represents the meridional image plane curvature and the sagittal image plane curvature. Figure 8C Shows the distortion curve of the optical imaging lens of Embodiment 4, which represents the distortion magnitude values corresponding to different field of view angles. Figure 8D Shows the lateral chromatic aberration curve of the optical imaging lens of Embodiment 4, which represents the deviation of different image heights on the imaging surface after the light rays pass through the lens. According to Figures 8A to 8D It can be seen that the optical imaging lens given in Embodiment 4 can achieve good imaging quality.

[0125] Example 5

[0126] The following refers to Figures 9 to 10D describes the optical imaging lens according to Embodiment 5 of the present application. Figure 9 Shows a schematic structural diagram of the optical imaging lens according to Embodiment 5 of the present application.

[0127] As shown Figure 9 in FIG. 1, the optical imaging lens sequentially includes, from the object side to the image side along the optical axis: a stop STO, 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, an eighth lens E8, a ninth lens E9, and a filter E10.

[0128] The first lens E1 has a positive optical power, its object side surface S1 is convex, and its image side surface S2 is concave. The second lens E2 has a negative optical power, its object side surface S3 is convex, and its image side surface S4 is concave. The third lens E3 has a positive optical power, its object side surface S5 is convex, and its image side surface S6 is concave. The fourth lens E4 has a negative optical power, its object side surface S7 is concave, and its image side surface S8 is concave. The fifth lens E5 has a positive optical power, its object side surface S9 is concave, and its image side surface S10 is convex. The sixth lens E6 has a negative optical power, its object side surface S11 is convex, and its image side surface S12 is concave. The seventh lens E7 has a positive optical power, its object side surface S13 is concave, and its image side surface S14 is convex. The eighth lens E8 has a positive optical power, its object side surface S15 is convex, and its image side surface S16 is concave. The ninth lens E9 has a negative optical power, its object side surface S17 is concave, and its image side surface S18 is concave. The filter E10 has an object side surface S19 and an image side surface S20. The optical imaging lens has an imaging surface S21, and light from an object sequentially passes through the surfaces S1 to S20 and finally forms an image on the imaging surface S21.

[0129] In Embodiment 5, the value of the total effective focal length f of the optical imaging lens is 7.95 mm, the value of the f-number Fno of the optical imaging lens is 1.98, the on-axis distance TTL from the object side surface S1 of the first lens E1 to the imaging surface S21 is 9.50 mm, the value of half of the diagonal length of the effective pixel region on the imaging surface S21, ImgH, is 8.00 mm, and the value of half of the maximum field of view, Semi-FOV, is 44.2°.

[0130] Table 13 shows the basic parameter table of the optical imaging lens of Embodiment 5, where the units of the radius of curvature, thickness / distance, and focal length are all millimeters (mm). Tables 14 and 15 show the high-order term coefficients that can be used for each aspherical mirror surface in Embodiment 5, where each aspherical surface type can be defined by the formula (1) given in Embodiment 1 above.

[0131]

[0132] Table 13

[0133]

[0134]

[0135] Table 14

[0136] Surface number A18 A20 A22 A24 A26 A28 A30 S1 -1.5103E-05 -4.4137E-05 -1.7768E-05 -1.8766E-05 -8.8460E-06 -9.1395E-06 -2.9480E-06 S2 -5.0389E-05 -2.4980E-05 -2.8689E-05 1.0813E-07 1.6928E-05 2.2282E-05 9.4021E-06 S3 -5.8728E-05 -3.4958E-05 -4.1672E-05 -3.1541E-05 -2.1313E-05 -8.0211E-06 -6.3920E-06 S4 -6.6515E-05 -2.4369E-05 -3.3778E-05 -8.4082E-06 -1.0292E-05 -9.8556E-07 -4.1769E-06 S5 -1.6403E-05 -2.8737E-05 -1.7682E-05 -1.9227E-05 -1.0849E-05 -8.9598E-06 -3.7097E-06 S6 -2.4879E-06 1.1228E-05 -3.1921E-06 6.3274E-06 -4.3981E-06 -2.3173E-06 -6.6731E-06 S7 8.5674E-06 5.4881E-05 1.3476E-05 9.6661E-06 -5.3869E-06 -5.6128E-06 -4.2517E-06 S8 2.9220E-04 2.3195E-04 4.7711E-05 2.6624E-05 -5.6179E-06 -1.1134E-06 -4.7598E-06 S9 -2.2304E-04 -8.5372E-05 -1.1832E-04 -3.1259E-05 3.0501E-06 1.4975E-05 7.4529E-06 S10 -1.4869E-04 3.5675E-05 -1.4845E-04 -1.3696E-05 -1.2837E-05 1.2414E-05 5.2289E-06 S11 -2.4393E-04 1.3784E-04 -5.6863E-05 6.9952E-05 1.3788E-05 2.2371E-05 5.3271E-06 S12 -4.5019E-05 2.0663E-04 7.8833E-05 1.0503E-04 2.2118E-07 3.5511E-06 -5.0251E-06 S13 -1.9353E-02 -2.5953E-03 -4.5780E-05 3.1486E-06 -1.1346E-04 3.7162E-05 2.3831E-05 S14 -4.6956E-04 -1.9152E-05 -7.7357E-05 1.0347E-04 8.2156E-05 4.5363E-05 1.4584E-05 S15 5.1625E-02 1.3475E-02 -3.3084E-04 -1.6302E-04 1.9377E-04 -1.2679E-04 -8.3000E-05 S16 -1.4358E-03 1.2038E-03 3.2330E-04 -5.1249E-05 -7.7304E-05 -6.9466E-05 -2.4233E-05 S17 -1.1263E-02 2.8425E-03 -1.9263E-04 -3.7537E-05 8.5168E-05 -1.0591E-04 2.6925E-05 S18 -2.2306E-03 1.5145E-03 7.2810E-04 -7.6806E-04 -6.8416E-04 -3.7162E-04 3.0650E-04

[0137] Table 15

[0138] Figure 10A The axial chromatic aberration curve of the optical imaging lens of Embodiment 5 is shown, which represents the deviation of the converging focal points of light rays with different wavelengths after passing through the lens. Figure 10B The astigmatism curve of the optical imaging lens of Embodiment 5 is shown, which represents the meridional image plane curvature and the sagittal image plane curvature. Figure 10C The distortion curve of the optical imaging lens of Embodiment 5 is shown, which represents the distortion magnitude values corresponding to different field angles. Figure 10D The lateral chromatic aberration curve of the optical imaging lens of Embodiment 5 is shown, which represents the deviation of different image heights on the imaging plane after the light rays pass through the lens. According to Figures 10A to 10D it can be known that the optical imaging lens given in Embodiment 5 can achieve good imaging quality.

[0139] Example 6

[0140] The following refers to Figures 11 to 12D The optical imaging lens according to Embodiment 6 of the present application is described. Figure 11 The structural schematic diagram of the optical imaging lens according to Embodiment 6 of the present application is shown.

[0141] As Figure 11 shown, the optical imaging lens sequentially includes, along the optical axis from the object side to the image side: a stop STO, 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, an eighth lens E8, a ninth lens E9, and a filter E10.

[0142] The first lens E1 has a positive optical power, with its object side S1 being convex and its image side S2 being concave. The second lens E2 has a negative optical power, with its object side S3 being convex and its image side S4 being concave. The third lens E3 has a positive optical power, with its object side S5 being convex and its image side S6 being concave. The fourth lens E4 has a negative optical power, with its object side S7 being concave and its image side S8 being concave. The fifth lens E5 has a positive optical power, with its object side S9 being concave and its image side S10 being convex. The sixth lens E6 has a negative optical power, with its object side S11 being concave and its image side S12 being convex. The seventh lens E7 has a negative optical power, with its object side S13 being concave and its image side S14 being convex. The eighth lens E8 has a positive optical power, with its object side S15 being convex and its image side S16 being convex. The ninth lens E9 has a negative optical power, with its object side S17 being concave and its image side S18 being concave. The filter E10 has an object side S19 and an image side S20. The optical imaging lens has an imaging surface S21, and light from an object sequentially passes through the surfaces S1 to S20 and finally forms an image on the imaging surface S21.

[0143] In Embodiment 6, the value of the total effective focal length f of the optical imaging lens is 7.85 mm, the value of the f-number Fno of the optical imaging lens is 1.98, the value of the on-axis distance TTL from the object side S1 of the first lens E1 to the imaging surface S21 is 9.35 mm, the value of half of the diagonal length of the effective pixel region on the imaging surface S21, ImgH, is 8.00 mm, and the value of half of the maximum field of view, Semi-FOV, is 44.7°.

[0144] Table 16 shows the basic parameter table of the optical imaging lens of Embodiment 6, where the units of the radius of curvature, thickness / distance, and focal length are all millimeters (mm). Tables 17 and 18 show the higher-order term coefficients that can be used for each aspherical mirror surface in Embodiment 6, where each aspherical surface type can be defined by the formula (1) given in Embodiment 1 above.

[0145]

[0146]

[0147] Table 16

[0148] Surface number A4 A6 A8 A10 A12 A14 A16 S1 -1.7332E-02 -9.3280E-03 -3.3353E-03 -7.9467E-04 -3.3012E-04 -4.0785E-05 -3.4873E-05 S2 -1.6560E-02 -3.2856E-03 -1.8716E-03 -4.9223E-04 -1.8612E-04 1.0336E-05 2.6747E-05 S3 6.0168E-02 7.7758E-03 -1.1379E-03 -3.4214E-04 2.3227E-05 8.7001E-05 2.1298E-05 S4 9.1126E-02 1.1832E-02 -5.4374E-04 -8.8172E-04 -4.0767E-04 1.9226E-05 5.7439E-05 S5 -5.6167E-03 2.8623E-02 7.6358E-03 6.9720E-04 -4.0819E-04 -9.1441E-05 1.8805E-05 S6 -2.1583E-04 2.0648E-02 7.9921E-03 1.6226E-03 2.6937E-04 -2.8441E-05 4.1154E-05 S7 -2.5411E-01 -2.1402E-02 -4.2067E-03 -2.0895E-03 -7.1227E-04 -3.8405E-04 -1.0570E-05 S8 -3.5740E-01 -3.0650E-02 1.8103E-03 -8.8276E-04 6.7331E-04 8.5410E-05 5.5174E-04 S9 -3.3482E-01 -2.7274E-02 2.4724E-02 6.7779E-03 4.4282E-03 1.0399E-03 8.5395E-04 S10 -3.8750E-01 -3.0441E-02 1.5808E-02 4.1374E-03 4.9799E-03 1.4581E-03 1.6056E-03 S11 -5.1109E-01 -8.3821E-03 -2.4267E-02 -8.5042E-03 -1.8414E-03 -8.3373E-04 1.1475E-03 S12 -6.8375E-01 3.3668E-02 -2.1820E-02 7.1039E-03 6.0944E-03 1.3652E-03 -5.9881E-04 S13 -7.7296E-01 -9.7656E-02 3.5810E-02 8.3113E-03 6.5554E-03 4.6461E-03 1.6663E-03 S14 -7.3580E-01 9.1158E-02 1.6580E-02 -8.5480E-03 -2.8569E-03 2.8131E-03 -1.0386E-04 S15 -2.9819E+00 3.4902E-01 4.3500E-02 -1.5102E-02 -3.8654E-04 2.8810E-03 -2.2132E-04 S16 -1.9906E+00 1.6308E-01 6.1413E-02 -3.8507E-02 4.0598E-02 -5.9234E-03 -2.9280E-03 S17 2.7882E+00 4.1648E-02 -2.3302E-01 1.2307E-01 -4.1843E-02 -7.8946E-03 1.5919E-02 S18 -4.5532E+00 5.5996E-01 -9.2475E-02 1.0099E-01 -6.2816E-02 -6.3958E-03 2.6408E-03

[0149] Table 17

[0150] Surface number A18 A20 A22 A24 A26 A28 A30 S1 7.8919E-06 -3.6906E-05 -2.0148E-05 -2.1765E-05 -3.0605E-06 -4.8457E-06 -4.6909E-07 S2 -6.1763E-07 -2.5922E-05 -2.8503E-05 -1.9825E-05 1.0633E-05 4.5086E-06 5.6172E-06 S3 -7.9461E-05 -7.0624E-05 -8.2444E-05 -5.2539E-05 -3.2877E-05 -1.9326E-05 -2.1573E-05 S4 -3.6830E-06 -2.6876E-05 -3.1318E-05 -1.9111E-05 -5.7193E-06 -8.7802E-06 5.4476E-08 S5 2.4527E-05 -1.7679E-05 -6.4038E-06 -3.7501E-06 -2.8981E-06 -2.0201E-06 4.9887E-07 S6 -1.2947E-06 2.2381E-05 -6.3630E-06 8.6777E-06 -8.4997E-06 -2.8980E-06 -1.1377E-05 S7 -3.1045E-05 1.8541E-05 -2.4247E-05 -1.5552E-05 -2.3238E-05 -1.4881E-05 -9.0251E-06 S8 1.6981E-04 1.7706E-04 -9.4731E-06 1.3117E-05 -6.9610E-06 8.8451E-07 -4.1487E-06 S9 -6.7348E-05 -6.5783E-05 -2.2297E-04 -5.8145E-05 2.7673E-06 1.2304E-05 5.0549E-06 S10 2.0689E-04 3.5482E-04 -4.2276E-05 9.0524E-05 3.7940E-05 4.1647E-05 1.0574E-05 S11 -7.2348E-05 3.4244E-04 -1.4380E-04 1.1583E-04 1.5870E-05 2.3267E-05 1.6179E-05 S12 -8.0035E-04 1.2111E-03 7.1104E-04 4.0731E-04 -2.2959E-04 -3.1882E-05 -4.3284E-05 S13 -5.1079E-04 -1.7577E-04 1.5609E-04 6.1009E-04 1.8150E-04 2.6459E-05 -4.2512E-05 S14 -4.1565E-04 1.1651E-04 1.0173E-04 9.7139E-05 -1.3237E-04 1.5012E-06 2.0107E-05 S15 -1.0581E-03 3.5412E-04 1.7195E-04 -4.5662E-05 -2.4098E-05 3.1108E-06 -2.5581E-06 S16 -2.8036E-03 3.9003E-04 -8.7211E-04 -1.6396E-04 9.0139E-05 -7.4800E-05 -1.0908E-04 S17 -1.3204E-02 3.5774E-03 -8.0791E-04 -4.1931E-04 -4.9313E-04 2.9711E-04 -5.0414E-04 S18 -1.7512E-03 1.9491E-03 -1.7732E-03 -3.8856E-04 -1.6185E-03 3.6767E-04 -4.2249E-05

[0151] Table 18

[0152] Figure 12AThe axial chromatic aberration curve of the optical imaging lens according to Embodiment 6 is shown, which represents the deviation of the convergence focal points of light rays with different wavelengths after passing through the lens. Figure 12B The astigmatism curve of the optical imaging lens according to Embodiment 6 is shown, which represents the meridional image plane curvature and the sagittal image plane curvature. Figure 12C The distortion curve of the optical imaging lens according to Embodiment 6 is shown, which represents the distortion magnitude values corresponding to different field angles of view. Figure 12D The longitudinal chromatic aberration curve of the optical imaging lens according to Embodiment 6 is shown, which represents the deviation of different image heights on the imaging plane after the light rays pass through the lens. According to Figures 12A to 12D it can be known that the optical imaging lens given in Embodiment 6 can achieve good imaging quality.

[0153] In summary, Embodiments 1 to 6 respectively satisfy the relationships shown in Table 19.

[0154] Conditional / Example 1 2 3 4 5 6 ImgH / T89 6.18 6.50 6.53 6.12 6.20 6.50 f3 / f2 -2.58 -2.37 -2.18 -2.44 -2.53 -2.38 f5 / f1 6.85 3.69 4.00 6.15 6.62 3.68 f / (f8 + f9) 1.17 1.44 1.36 1.18 1.10 1.49 TTL / Fno 4.76 4.72 4.70 4.77 4.80 4.72 CT8 / CT1 1.22 1.26 1.24 1.21 1.22 1.28 Tan(HFOV) / CT9 1.29 1.23 1.25 1.27 1.26 1.22 R1×N1 / R2 0.42 0.40 0.40 0.42 0.42 0.40 R4 / N2 3.06 2.99 3.06 3.05 3.04 2.98 V2 / R3 2.27 2.27 2.16 2.29 2.31 2.27 f3 / R6 3.64 2.94 2.54 3.42 3.58 2.94 R14 / V7 -0.52 -2.33 -1.71 -0.52 -0.46 -2.11

[0155] Table 19

[0156] The present application also provides an imaging device, which is provided with an electronic photosensitive element for imaging. The electronic photosensitive element can be a charge coupled device (CCD) or a complementary metal oxide semiconductor element (CMOS). The imaging device can be an independent 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.

[0157] The above description is only the preferred embodiments of the present application and the description of the applied technical principles. Those skilled in the art should understand that the protection scope involved in the present application is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the present application. For example, the technical solutions formed by mutually replacing the above features with the technical features (but not limited to) having similar functions disclosed in the present application.

Claims

1. Optical imaging lens, Characterized in that, along the optical axis from the object side to the image side, it sequentially includes: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, and a ninth lens with optical power, and there is an air gap between any two adjacent lenses; the first lens has positive optical power; the second lens has negative optical power; the third lens has positive optical power; the fourth lens has negative optical power; the fifth lens has positive optical power; the eighth lens has positive optical power; the ninth lens has negative optical power; the object side surface of the first lens is convex, and the image side surface is concave; the object side surface of the second lens is convex, and the image side surface is concave; the object side surface of the third lens is convex, and the image side surface is concave; the object side surface of the fourth lens is concave, and the image side surface of the fourth lens is concave; the object side surface of the fifth lens is concave, and the image side surface is convex; the image side surface of the seventh lens is convex; the object side surface of the eighth lens is convex; the object side surface of the ninth lens is concave, and the image side surface is concave; the number of lenses with optical power in the optical imaging lens is nine; wherein, half of the diagonal length ImgH of the effective pixel area on the imaging surface of the optical imaging lens and the distance T89 between the eighth lens and the ninth lens on the optical axis satisfy: 6.10 < ImgH / T89 < 6.

55.

2. The optical imaging lens according to claim 1, Characterized in that, the effective focal length f2 of the second lens and the effective focal length f3 of the third lens satisfy: -2.60 < f3 / f2 < -2.

15.

3. The optical imaging lens according to claim 1, Characterized in that, the effective focal length f1 of the first lens and the effective focal length f5 of the fifth lens satisfy: 3.65 < f5 / f1 < 6.

87.

4. The optical imaging lens according to claim 1, Characterized in that, the total effective focal length f of the optical imaging lens, the effective focal length f8 of the eighth lens, and the effective focal length f9 of the ninth lens satisfy: 1.10 ≤ f / (f8 + f9) < 1.

5.

5. The optical imaging lens according to claim 1, Characterized in that, the on-axis distance TTL from the object side surface of the first lens to the imaging surface and the aperture number Fno of the optical imaging lens satisfy: 4.70mm ≤ TTL / Fno ≤ 4.80mm.

6. The optical imaging lens according to claim 1, Characterized in that, the central thickness CT1 of the first lens on the optical axis and the central thickness CT8 of the eighth lens on the optical axis satisfy: 1.20 < CT8 / CT1 < 1.

30.

7. The optical imaging lens according to claim 1, Characterized in that, half of the maximum field of view Semi-FOV of the optical imaging lens and the central thickness CT9 of the ninth lens on the optical axis satisfy: 1.20mm -1 <Tan(Semi - FOV) / CT9 ≤ 1.29mm -1 。 8. The optical imaging lens according to claim 1, Characterized in that, The spacing distance T12 between the first lens and the second lens on the optical axis, the spacing distance T23 between the second lens and the third lens on the optical axis, and the spacing distance T34 between the third lens and the fourth lens on the optical axis satisfy: (T12 + T23) < T34.

9. The optical imaging lens according to any one of claims 1 to 8, characterized in that the curvature radius R1 of the object side surface of the first lens, the curvature radius R2 of the image side surface of the first lens, and the refractive index N1 of the first lens satisfy: 0.40 ≤ R1 × N1 / R2 < 0.

45.

10. The optical imaging lens according to any one of claims 1 to 8, characterized in that the curvature radius R4 of the image side surface of the second lens and the refractive index N2 of the second lens satisfy: 2.98 ≤ R4 / N2 ≤ 3.

06.

11. The optical imaging lens according to any one of claims 1 to 8, characterized in that the Abbe number V2 of the second lens and the curvature radius R3 of the object side surface of the second lens satisfy: 2.16 ≤ V2 / R3 < 2.

35.

12. The optical imaging lens according to any one of claims 1 to 8, characterized in that the effective focal length f3 of the third lens and the curvature radius R6 of the image side surface of the third lens satisfy: 2.52 < f3 / R6 < 3.

66.

13. The optical imaging lens according to any one of claims 1 to 8, characterized in that the curvature radius R14 of the image side surface of the seventh lens and the Abbe number V7 of the seventh lens satisfy: -2.35 < R14 / V7 < -0.44.

Images