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 with a focal power, whose object side is concave; a second lens with a positive focal power; a third lens with a negative focal power, whose object side is convex; a fourth lens with a focal power; and a fifth lens with a focal power, whose object side is concave; half of the maximum field of view angle of the optical imaging lens, Semi-FOV, satisfies: Semi-FOV ≥ 60°; and half of the diagonal length of the effective pixel area on the imaging surface of the optical imaging lens, ImgH, the effective focal length f2 of the second lens, and the effective focal length f5 of the fifth lens satisfy: 0 < ImgH / (f2 + f5) < 5.0.

Description

Technical Field

[0001] This application relates to the field of optical elements, and specifically, to an optical imaging lens. Background Art

[0002] When many photography enthusiasts take pictures of large-area scenes, such as tall mountain views, wide buildings, large parades, and all indoor exhibits, they are often restricted by aspects such as the field of view angle of the lens, making it impossible for the camera lens to capture the entire large-area scene. The viewing angles of most camera lenses on the market are insufficient to meet the needs of photography enthusiasts for shooting large-area scenes.

[0003] Therefore, in order to meet the needs of more photography enthusiasts for shooting large-area scenes, there is an urgent need in the market for an optical imaging lens that can balance high imaging quality and a large field of view angle. Summary of the Invention

[0004] This application provides such an optical imaging lens on the one hand. The optical imaging lens sequentially includes, from the object side to the image side along the optical axis: a first lens with a focal power, whose object side is concave; a second lens with a positive focal power; a third lens with a negative focal power, whose object side is convex; a fourth lens with a focal power; and a fifth lens with a focal power, whose object side is concave. Half of the maximum field of view angle of the optical imaging lens, Semi-FOV, satisfies: Semi-FOV≥60°; and half of the diagonal length of the effective pixel area on the imaging surface of the optical imaging lens, ImgH, the effective focal length f2 of the second lens, and the effective focal length f5 of the fifth lens satisfy: 0<ImgH / (f2 + f5)<5.0.

[0005] In one embodiment, at least one of the object side of the first lens to the image side of the fifth lens is an aspherical mirror surface.

[0006] In one embodiment, the radius of curvature R9 of the object side of the fifth lens and the effective focal length f3 of the third lens satisfy: 3.5<R9 / f3<6.0.

[0007] In one embodiment, the central thickness CT5 of the fifth lens on the optical axis and the interval distance T45 between the fourth lens and the fifth lens on the optical axis satisfy: 1.0<CT5 / T45<3.5.

[0008] In one embodiment, the edge thickness ET4 of the fourth lens and the central thickness CT4 of the fourth lens on the optical axis satisfy: 0<ET4 / CT4<0.5.

[0009] In one embodiment, the radius of curvature R4 of the image side of the second lens and the radius of curvature R8 of the image side of the fourth lens satisfy: 1.0<R4 / R8<3.0.

[0010] In one embodiment, the radius of curvature R1 of the object side surface of the first lens and the combined focal length f12 of the first lens and the second lens may satisfy: -4.5 < R1 / f12 < -1.0.

[0011] In one embodiment, the combined focal length f123 of the first lens, the second lens and the third lens and the total effective focal length f of the optical imaging lens may satisfy: 1.5 < f123 / f < 3.0.

[0012] In one embodiment, the distance SAG32 on the optical axis from the intersection of the image side surface of the third lens and the optical axis to the vertex of the effective radius of the image side surface of the third lens and the distance SAG42 on the optical axis from the intersection of the image side surface of the fourth lens and the optical axis to the vertex of the effective radius of the image side surface of the fourth lens may satisfy: -9.5 < SAG42 / SAG32 < -3.5.

[0013] In one embodiment, the combined focal length f45 of the fourth lens and the fifth lens, the distance T34 on the optical axis between the third lens and the fourth lens, and the distance T45 on the optical axis between the fourth lens and the fifth lens may satisfy: 4.0 < f45 / (T34 + T45) < 7.5.

[0014] On the other hand, 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, whose object side surface is concave; a second lens with a positive focal power; a third lens with a negative focal power, whose object side surface is convex; a fourth lens with a focal power; and a fifth lens with a focal power, whose object side surface is concave. Half of the maximum field of view Semi-FOV of the optical imaging lens may satisfy: Semi-FOV ≥ 60°; and the combined focal length f45 of the fourth lens and the fifth lens, the distance T34 on the optical axis between the third lens and the fourth lens, and the distance T45 on the optical axis between the fourth lens and the fifth lens may satisfy: 4.0 < f45 / (T34 + T45) < 7.5.

[0015] By reasonably distributing the focal power and optimizing the optical parameters, the present application provides an optical imaging lens applicable to portable electronic products, having at least one of a large field of view, miniaturization, high resolution, and good imaging quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features, objects, and advantages of the present application will become more apparent by reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0017] Figure 1 FIG. shows a schematic structural diagram of an optical imaging lens according to Embodiment 1 of the present application;

[0018] 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 of Embodiment 1;

[0019] Figure 3 shows a schematic structural diagram of the optical imaging lens according to Embodiment 2 of the present application;

[0020] 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 of Embodiment 2;

[0021] Figure 5 shows a schematic structural diagram of the optical imaging lens according to Embodiment 3 of the present application;

[0022] 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 of Embodiment 3;

[0023] Figure 7 shows a schematic structural diagram of the optical imaging lens according to Embodiment 4 of the present application;

[0024] 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 of Embodiment 4;

[0025] Figure 9 shows a schematic structural diagram of the optical imaging lens according to Embodiment 5 of the present application;

[0026] 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 of Embodiment 5;

[0027] Figure 11 shows a schematic structural diagram of the optical imaging lens according to Embodiment 6 of the present application; and

[0028] 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 of Embodiment 6. Detailed Embodiments

[0029] 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.

[0030] It should be noted that in this specification, the expressions such as first, second, third, etc. are only used to distinguish one feature from another, 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.

[0031] In the drawings, for ease of illustration, the thickness, dimensions, 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 for illustrative purposes only and are not drawn to an exact scale.

[0032] In this context, the paraxial region refers to the region near the optical axis. If the lens surface is convex and the position of the convex surface is not defined, it means that the lens surface is convex at least in the paraxial region; if the lens surface is concave and the position of the concave surface is not defined, it means that the lens surface is concave at least in the paraxial region. The surface of each lens closest to the object being 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.

[0033] It should also be understood that the terms "comprises", "comprising", "has", "including", and / or "including having", when used in this specification, indicate the presence of the stated features, elements, and / or components, but do not exclude 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 an individual element in the list. In addition, when describing the 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.

[0034] Unless otherwise defined, 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 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.

[0035] It should be noted that, without conflict, the embodiments and features in the embodiments of the present application may be combined with each other. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0036] The features, principles, and other aspects of the present application are described in detail below.

[0037] The optical imaging lens according to an exemplary embodiment of the present application may include five lenses with optical powers, namely a first lens, a second lens, a third lens, a fourth lens, and a fifth lens. These five lenses are arranged in sequence along the optical axis from the object side to the image side. There may be a spacing distance between any two adjacent lenses among the first lens to the fifth lens.

[0038] In the exemplary embodiment, the first lens may have a positive or negative optical power, and its object side surface may be concave; the second lens may have a positive optical power; the third lens may have a negative optical power, and its object side surface may be convex; the fourth lens may have a positive or negative optical power; and the fifth lens may have a positive or negative optical power, and its object side surface may be concave.

[0039] In the exemplary embodiment, the optical imaging lens according to the present application may satisfy: Semi-FOV≥60°, where Semi-FOV is half of the maximum field of view angle of the optical imaging lens. Satisfying Semi-FOV≥60° can provide a wide field of view, which is beneficial for achieving a large clear range.

[0040] In the exemplary embodiment, the optical imaging lens according to the present application may satisfy: 0<ImgH / (f2 + f5)<5.0, where ImgH is half of the diagonal length of the effective pixel region on the imaging surface of the optical imaging lens, f2 is the effective focal length of the second lens, and f5 is the effective focal length of the fifth lens. More specifically, ImgH, f2, and f5 may further satisfy: 0<ImgH / (f2 + f5)<4.8. Satisfying 0<ImgH / (f2 + f5)<5.0 can effectively improve the aberration of the system.

[0041] In the exemplary embodiment, the optical imaging lens according to the present application may satisfy: 3.5<R9 / f3<6.0, where R9 is the radius of curvature of the object side surface of the fifth lens, and f3 is the effective focal length of the third lens. More specifically, R9 and f3 may further satisfy: 3.9<R9 / f3<6.0. Satisfying 3.5<R9 / f3<6.0 can effectively improve the aberration of the system.

[0042] In the exemplary embodiment, the optical imaging lens according to the present application may satisfy: 1.0<CT5 / T45<3.5, where CT5 is the central thickness of the fifth lens on the optical axis, and T45 is the spacing distance between the fourth lens and the fifth lens on the optical axis. More specifically, CT5 and T45 may further satisfy: 1.2<CT5 / T45<3.5. Satisfying 1.0<CT5 / T45<3.5 can reduce the processing difficulty and enable the optical imaging lens to have a good ability to balance chromatic aberration and distortion.

[0043] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 0 < ET4 / CT4 < 0.5, where ET4 is the edge thickness of the fourth lens, and CT4 is the central thickness of the fourth lens on the optical axis. More specifically, ET4 and CT4 may further satisfy: 0.1 < ET4 / CT4 < 0.3. Satisfying 0 < ET4 / CT4 < 0.5 can reduce the processing difficulty and at the same time enable the assembly of the optical imaging lens to have higher stability.

[0044] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 1.0 < R4 / R8 < 3.0, where R4 is the radius of curvature of the image side of the second lens, and R8 is the radius of curvature of the image side of the fourth lens. More specifically, R4 and R8 may further satisfy: 1.2 < R4 / R8 < 2.8. Satisfying 1.0 < R4 / R8 < 3.0 can effectively balance the axial aberration generated by the optical imaging lens.

[0045] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: -4.5 < R1 / f12 < -1.0, where R1 is the radius of curvature of the object side of the first lens, and f12 is the combined focal length of the first lens and the second lens. More specifically, R1 and f12 may further satisfy: -4.4 < R1 / f12 < -1.1. Satisfying -4.5 < R1 / f12 < -1.0 is beneficial for the optical imaging lens to better balance aberrations and at the same time beneficial for improving the resolution of the system.

[0046] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 1.5 < f123 / f < 3.0, where f123 is the combined focal length of the first lens, the second lens, and the third lens, and f is the total effective focal length of the optical imaging lens. More specifically, f123 and f may further satisfy: 1.6 < f123 / f < 2.8. Satisfying 1.5 < f123 / f < 3.0 is beneficial for increasing the field of view angle of the optical imaging lens.

[0047] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: -9.5 < SAG42 / SAG32 < -3.5, where SAG32 is the distance from the intersection of the image side of the third lens and the optical axis to the vertex of the effective radius of the image side of the third lens on the optical axis, and SAG42 is the distance from the intersection of the image side of the fourth lens and the optical axis to the vertex of the effective radius of the image side of the fourth lens on the optical axis. More specifically, SAG42 and SAG32 may further satisfy: -9.5 < SAG42 / SAG32 < -3.8. Satisfying -9.5 < SAG42 / SAG32 < -3.5 can reasonably control the deflection angle of the chief ray, improve the matching degree with the chip, and is beneficial for adjusting the structure of the optical imaging lens.

[0048] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 4.0 < f45 / (T34 + T45) < 7.5, where f45 is the combined focal length of the fourth lens and the fifth lens, T34 is the axial distance between the third lens and the fourth lens, and T45 is the axial distance between the fourth lens and the fifth lens. More specifically, f45, T34, and T45 may further satisfy: 4.0 < f45 / (T34 + T45) < 7.3. Satisfying 4.0 < f45 / (T34 + T45) < 7.5 can ensure that the optical imaging lens has good processability characteristics.

[0049] In an exemplary embodiment, the optical imaging lens according to the present application further includes a diaphragm disposed between the first lens and the second lens. Optionally, the above optical 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. The present application proposes an optical imaging lens having characteristics such as miniaturization, ultra-wide angle, and high imaging quality. Optionally, the optical imaging lens proposed by the present application may be a wide-angle lens, whose focal length may be less than that of a standard lens and the viewing angle may be greater than that of a standard lens; and the focal length may be greater than that of a fish-eye lens and the viewing angle may be less than that of a fish-eye lens. The optical imaging lens according to the above embodiment of the present application may employ multiple lenses, such as the five lenses described above. By reasonably distributing the optical power, surface shape, central thickness of each lens, and the axial distance between each lens, etc., the incident light can be effectively converged, the optical total length of the imaging lens can be reduced, and the processability of the imaging lens can be improved, making the optical imaging lens more conducive to production and processing.

[0050] In an embodiment of the present application, at least one of the lens surfaces of each lens is an aspherical surface, that is, at least one of the object side surface of the first lens to the image side surface of the fifth lens is an aspherical surface. The characteristics of an aspherical lens are that the curvature changes continuously from the center of the lens to the periphery of the lens. Different from a spherical lens having a constant curvature from the center of the lens to the periphery of the lens, an aspherical lens has better curvature radius characteristics and has the advantages of improving distortion aberration and improving astigmatism aberration. After using an aspherical lens, it is possible to eliminate as much as possible the aberration that appears during imaging, thereby improving the imaging quality. Optionally, at least one of the object side surface and the image side surface of each of the first lens, the second lens, the third lens, the fourth lens, and the fifth lens is an aspherical surface. Optionally, both the object side surface and the image side surface of each of the first lens, the second lens, the third lens, the fourth lens, and the fifth lens are aspherical surfaces.

[0051] 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 five lenses are described as an example in the embodiments, the optical imaging lens is not limited to including five lenses. If necessary, the optical imaging lens may also include other numbers of lenses.

[0052] The following further describes specific embodiments of the optical imaging lens applicable to the above embodiments with reference to the drawings.

[0053] Example 1

[0054] 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.

[0055] As Figure 1 shown, the optical imaging lens sequentially includes, from the object side to the image side: a first lens E1, a stop STO, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a filter E6, and an imaging surface S13.

[0056] The first lens E1 has a negative optical power, its object surface S1 is concave, and its image surface S2 is concave. The second lens E2 has a positive optical power, its object surface S3 is convex, and its image surface S4 is convex. The third lens E3 has a negative optical power, its object surface S5 is convex, and its image surface S6 is concave. The fourth lens E4 has a positive optical power, its object surface S7 is concave, and its image surface S8 is convex. The fifth lens E5 has a negative optical power, its object surface S9 is concave, and its image surface S10 is concave. The filter E6 has an object surface S11 and an image surface S12. The light from the object sequentially passes through the surfaces S1 to S12 and finally forms an image on the imaging surface S13.

[0057] 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).

[0058]

[0059] Table 1

[0060] In this example, the total effective focal length f of the optical imaging lens is 2.12 mm, the total length TTL of the optical imaging lens (i.e., the distance on the optical axis from the object side S1 of the first lens E1 to the imaging surface S13 of the optical imaging lens) is 5.85 mm, half of the diagonal length ImgH of the effective pixel region on the imaging surface S13 of the optical imaging lens is 3.63 mm, half of the maximum field of view angle Semi-FOV of the optical imaging lens is 63.5°, and the aperture value Fno of the optical imaging lens is 2.27.

[0061] In Embodiment 1, the object side and the image side of any one of the first lens E1 to the fifth lens E5 are aspherical surfaces, and the surface profile x of each aspherical lens can be defined by, but not limited to, the following aspherical formula:

[0062]

[0063] 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 2-1 and 2-2 below give the higher-order term coefficients A4, A6, A8, A 10 、A 12 、A 14 、A 16 、A 18 、A 20 、A 22 、A 24 、A 26 、A 28 and A 30 .

[0064] Face number A4 A6 A8 A10 A12 A14 A16 S1 2.1730E-01 -3.2919E-01 6.5161E-01 -1.0543E+00 1.2562E+00 -1.0737E+00 6.5621E-01 S2 2.8465E-01 5.7454E-01 -1.2109E+01 9.9178E+01 -4.9748E+02 1.6776E+03 -3.9488E+03 S3 -5.1489E-02 1.7599E+00 -4.1215E+01 5.8026E+02 -5.6093E+03 3.8817E+04 -1.9551E+05 S4 -3.1623E-01 1.3505E+00 -4.1075E+00 -2.8169E+00 1.3423E+02 -8.8676E+02 3.3966E+03 S5 2.4741E-02 -8.7187E-01 4.1705E+00 -1.3832E+01 3.5169E+01 -6.8425E+01 1.0017E+02 S6 -1.7320E-01 4.0182E-01 -1.0411E+00 2.4075E+00 -4.0430E+00 4.7791E+00 -4.0359E+00 S7 -3.8732E-02 1.6912E-01 -4.3580E-01 8.3452E-01 -1.1690E+00 1.1912E+00 -8.8523E-01 S8 7.1021E-01 -1.8366E+00 3.1808E+00 -4.0293E+00 3.8728E+00 -2.8599E+00 1.6217E+00 S9 5.4391E-01 -1.3772E+00 1.6387E+00 -1.2163E+00 6.0038E-01 -2.0119E-01 4.5309E-02 S10 -1.1770E-01 -1.7760E-01 2.4616E-01 -1.5535E-01 6.0824E-02 -1.6121E-02 3.0059E-03

[0065] Table 2-1

[0066] Face number A18 A20 A22 A24 A26 A28 A30 S1 -2.8652E-01 8.8933E-02 -1.9375E-02 2.8871E-03 -2.7971E-04 1.5859E-05 -3.9909E-07 S2 6.5950E+03 -7.8236E+03 6.4993E+03 -3.6532E+03 1.2987E+03 -2.5443E+02 1.9331E+01 S3 7.1852E+05 -1.9140E+06 3.6380E+06 -4.7917E+06 4.1447E+06 -2.1137E+06 4.8085E+05 S4 -8.6839E+03 1.5411E+04 -1.9075E+04 1.6162E+04 -8.9346E+03 2.9021E+03 -4.1991E+02 S5 -1.0932E+02 8.8243E+01 -5.1907E+01 2.1605E+01 -6.0170E+00 1.0031E+00 -7.5448E-02 S6 2.4682E+00 -1.0967E+00 3.5076E-01 -7.8688E-02 1.1748E-02 -1.0478E-03 4.2211E-05 S7 4.8050E-01 -1.8963E-01 5.3645E-02 -1.0573E-02 1.3756E-03 -1.0603E-04 3.6608E-06 S8 -6.9999E-01 2.2650E-01 -5.3681E-02 8.9939E-03 -1.0047E-03 6.6950E-05 -2.0092E-06 S9 -6.4913E-03 4.7953E-04 8.0648E-06 -5.5321E-06 5.4015E-07 -2.4348E-08 4.4198E-10 S10 -4.0129E-04 3.8507E-05 -2.6323E-06 1.2501E-07 -3.9180E-09 7.2847E-11 -6.0844E-13

[0067] Table 2-2

[0068] Figure 2A shows the axial chromatic aberration curve of the optical imaging lens of Embodiment 1, which represents the deviation of the convergence points of light rays with different wavelengths after passing through the lens. Figure 2B shows the astigmatism curve of the optical imaging lens of Embodiment 1, which represents the meridional image plane curvature and the sagittal image plane curvature. Figure 2C shows the distortion curve of the optical imaging lens of Embodiment 1, which represents the distortion magnitude values corresponding to different image heights. Figure 2DThe chromatic aberration of magnification curve of the optical imaging lens according to 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 seen that the optical imaging lens given in Embodiment 1 can achieve good imaging quality.

[0069] Example 2

[0070] The following will refer 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.

[0071] As Figure 3 shown, the optical imaging lens sequentially includes from the object side to the image side: a first lens E1, a diaphragm STO, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a filter E6, and an imaging plane S13.

[0072] The first lens E1 has a positive optical power, its object side surface S1 is concave, and its image side surface S2 is convex. The second lens E2 has a positive optical power, its object side surface S3 is convex, and its image side surface S4 is convex. The third lens E3 has a negative optical power, its object side surface S5 is convex, and its image side surface S6 is concave. The fourth lens E4 has a positive optical power, its object side surface S7 is concave, and its image side surface S8 is convex. The fifth lens E5 has a negative optical power, its object side surface S9 is concave, and its image side surface S10 is concave. The filter E6 has an object side surface S11 and an image side surface S12. Light from the object sequentially passes through the surfaces S1 to S12 and finally forms an image on the imaging plane S13.

[0073] In this example, the total effective focal length f of the optical imaging lens is 2.15 mm, the total length TTL of the optical imaging lens is 5.30 mm, half of the diagonal length of the effective pixel region on the imaging plane S13 of the optical imaging lens is ImgH = 3.63 mm, half of the maximum field of view angle of the optical imaging lens is Semi - FOV = 61.1°, and the aperture value Fno of the optical imaging lens is 2.27.

[0074] Table 3 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 4 - 1 and 4 - 2 show the high - order term coefficients that can be used for each aspherical mirror surface in Embodiment 2, where each aspherical surface type can be defined by the formula (1) given in Embodiment 1 above.

[0075]

[0076] Table 3

[0077]

[0078]

[0079] Table 4-1

[0080] Face number A18 A20 A22 A24 A26 A28 A30 S1 1.4365E+00 -5.9615E-01 1.7689E-01 -3.6465E-02 4.9446E-03 -3.9515E-04 1.4041E-05 S2 -2.8117E+03 2.7414E+03 -1.9232E+03 9.4498E+02 -3.0846E+02 6.0046E+01 -5.2727E+00 S3 2.2466E+06 3.0600E+07 -2.0639E+08 6.5940E+08 -1.2120E+09 1.2319E+09 -5.3911E+08 S4 4.3285E+04 -6.2078E+04 6.5731E+04 -4.9729E+04 2.5371E+04 -7.8052E+03 1.0922E+03 S5 3.9803E+03 -3.5525E+03 2.2044E+03 -9.0287E+02 2.1899E+02 -2.3586E+01 -9.1380E-02 S6 5.0272E+01 -3.1877E+01 1.5031E+01 -5.1385E+00 1.2097E+00 -1.7605E-01 1.1960E-02 S7 -1.7211E+02 1.2018E+02 -6.0570E+01 2.1448E+01 -5.0573E+00 7.1229E-01 -4.5290E-02 S8 -3.0752E+01 2.1944E+01 -1.0576E+01 3.4140E+00 -7.0813E-01 8.5359E-02 -4.5471E-03 S9 -2.0874E+01 1.0158E+01 -3.4889E+00 8.2768E-01 -1.2906E-01 1.1901E-02 -4.9166E-04 S10 2.5365E-01 -5.6351E-02 9.1128E-03 -1.0426E-03 7.9938E-05 -3.6823E-06 7.6994E-08

[0081] Table 4-2

[0082] Figure 4A The axial chromatic aberration curve of the optical imaging lens of Embodiment 2 is shown, which represents the deviation of the focusing points of light rays with different wavelengths after passing through the lens. Figure 4B The astigmatism curve of the optical imaging lens of Embodiment 2 is shown, which represents the meridional image plane curvature and the sagittal image plane curvature. Figure 4C The distortion curve of the optical imaging lens of Embodiment 2 is shown, which represents the distortion magnitude values corresponding to different image heights. Figure 4D The lateral chromatic aberration curve of the optical imaging lens of Embodiment 2 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 4A to 4D It can be seen that the optical imaging lens given in Embodiment 2 can achieve good imaging quality.

[0083] Example 3

[0084] The following is referred to Figures 5 to 6D The optical imaging lens according to Embodiment 3 of the present application is described. Figure 5 The structural schematic diagram of the optical imaging lens according to Embodiment 3 of the present application is shown.

[0085] As Figure 5 shown, the optical imaging lens sequentially includes, from the object side to the image side: a first lens E1, a stop STO, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a filter E6, and an imaging surface S13.

[0086] The first lens E1 has a negative optical power, its object side surface S1 is concave, and its image side surface S2 is concave. The second lens E2 has a positive optical power, its object side surface S3 is convex, and its image side surface S4 is convex. The third lens E3 has a negative optical power, its object side surface S5 is convex, and its image side surface S6 is concave. The fourth lens E4 has a positive optical power, its object side surface S7 is concave, and its image side surface S8 is convex. 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 filter E6 has an object side surface S11 and an image side surface S12. The light from the object sequentially passes through the surfaces S1 to S12 and finally forms an image on the imaging surface S13.

[0087] In this example, the total effective focal length f of the optical imaging lens is 1.84 mm, the total length TTL of the optical imaging lens is 5.85 mm, half of the diagonal length of the effective pixel area on the imaging surface S13 of the optical imaging lens is ImgH = 3.63 mm, half of the maximum field of view angle of the optical imaging lens is Semi - FOV = 62.2°, and the aperture value Fno of the optical imaging lens is 2.28.

[0088] Table 5 shows the basic parameter table of the optical imaging lens of Embodiment 3. Among them, the units of the radius of curvature, thickness / distance, and focal length are all millimeters (mm). Tables 6 - 1 and 6 - 2 show the high - order term coefficients of each aspherical mirror surface that can be used in Embodiment 3. Among them, each aspherical surface type can be defined by the formula (1) given in Embodiment 1 above.

[0089]

[0090] Table 5

[0091]

[0092]

[0093] Table 6 - 1

[0094] Face number A18 A20 A22 A24 A26 A28 A30 S1 -5.7329E-01 2.2941E-01 -6.2128E-02 1.1236E-02 -1.3001E-03 8.7067E-05 -2.5676E-06 S2 -2.6854E+04 2.6048E+04 -1.4591E+04 2.1053E+03 2.8255E+03 -1.8442E+03 3.6346E+02 S3 1.8091E+07 -6.0971E+07 1.4680E+08 -2.4615E+08 2.7290E+08 -1.7965E+08 5.3119E+07 S4 -1.1402E+04 1.3812E+04 -1.2013E+04 7.3067E+03 -2.9518E+03 7.1247E+02 -7.7937E+01 S5 -5.3495E+02 4.0340E+02 -2.1551E+02 7.9351E+01 -1.9106E+01 2.7023E+00 -1.6989E-01 S6 -2.2045E+01 1.1680E+01 -4.4225E+00 1.1627E+00 -2.0116E-01 2.0565E-02 -9.4018E-04 S7 -6.8249E-01 2.1121E-01 -4.7427E-02 7.4404E-03 -7.6080E-04 4.4407E-05 -1.0708E-06 S8 -1.0834E-01 8.9388E-02 -3.2143E-02 6.8069E-03 -8.7456E-04 6.3360E-05 -1.9936E-06 S9 -1.3727E-02 2.1314E-03 -2.3457E-04 1.7863E-05 -8.9492E-07 2.6533E-08 -3.5269E-10 S10 -1.4473E-04 1.0896E-05 -5.8669E-07 2.2007E-08 -5.4591E-10 8.0462E-12 -5.3339E-14

[0095] Table 6 - 2

[0096] Figure 6A Shows the axial chromatic aberration curve of the optical imaging lens of Embodiment 3, which represents the deviation of the convergence 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 meridional image plane curvature and the sagittal image plane curvature. Figure 6C Shows the distortion curve of the optical imaging lens of Embodiment 3, which represents the distortion magnitude values corresponding to different image heights. Figure 6D Shows the lateral chromatic aberration curve of the optical imaging lens of Embodiment 3, which represents the deviation of different image heights of light rays on the imaging surface after passing 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.

[0097] Example 4

[0098] 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.

[0099] As Figure 7As shown, the optical imaging lens sequentially includes, from the object side to the image side: a first lens E1, a stop STO, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a filter E6, and an imaging surface S13.

[0100] The first lens E1 has a negative optical power, its object surface S1 is concave, and its image surface S2 is convex. The second lens E2 has a positive optical power, its object surface S3 is convex, and its image surface S4 is convex. The third lens E3 has a negative optical power, its object surface S5 is convex, and its image surface S6 is concave. The fourth lens E4 has a positive optical power, its object surface S7 is concave, and its image surface S8 is convex. The fifth lens E5 has a negative optical power, its object surface S9 is concave, and its image surface S10 is concave. The filter E6 has an object surface S11 and an image surface S12. Light from the object sequentially passes through the surfaces S1 to S12 and finally forms an image on the imaging surface S13.

[0101] In this example, the total effective focal length f of the optical imaging lens is 2.02 mm, the total length TTL of the optical imaging lens is 5.69 mm, half of the diagonal length of the effective pixel region on the imaging surface S13 of the optical imaging lens is ImgH = 3.63 mm, half of the maximum field of view angle of the optical imaging lens is Semi - FOV = 64.6°, and the f - number of the optical imaging lens is Fno = 2.27.

[0102] Table 7 shows the basic parameter table of the optical imaging lens of Example 4, where the units of the radius of curvature, thickness / distance, and focal length are all millimeters (mm). Tables 8 - 1 and 8 - 2 show the higher - order term coefficients that can be used for each aspherical mirror surface in Example 4, where each aspherical surface type can be defined by the formula (1) given in the above Example 1.

[0103]

[0104] Table 7

[0105] Face number A4 A6 A8 A10 A12 A14 A16 S1 2.0562E-01 -4.3280E-01 1.3580E+00 -3.4303E+00 6.3751E+00 -8.6544E+00 8.6289E+00 S2 4.4676E-01 -9.7775E-01 2.3448E+00 7.5544E+00 -1.1143E+02 5.8595E+02 -1.8887E+03 S3 -2.7899E-02 7.6012E-01 -2.0745E+01 3.6356E+02 -4.8613E+03 4.8062E+04 -3.4250E+05 S4 -2.7840E-01 -1.4085E-01 1.7899E+01 -1.9862E+02 1.3009E+03 -5.7458E+03 1.7879E+04 S5 3.7883E-02 -1.2627E+00 8.7025E+00 -4.4048E+01 1.6737E+02 -4.6854E+02 9.6189E+02 S6 -1.8821E-01 5.8434E-01 -1.9348E+00 5.1004E+00 -9.4052E+00 1.2004E+01 -1.0552E+01 S7 -1.0991E-01 4.5366E-01 -1.2089E+00 2.4124E+00 -3.5297E+00 3.7500E+00 -2.9072E+00 S8 7.2741E-01 -2.0892E+00 4.0546E+00 -5.7648E+00 6.1627E+00 -4.9388E+00 2.9436E+00 S9 5.4114E-01 -1.4278E+00 1.6789E+00 -1.2307E+00 6.6014E-01 -3.1281E-01 1.4628E-01 S10 -3.5352E-02 -3.6863E-01 4.4381E-01 -2.5209E-01 6.3960E-02 9.2147E-03 -1.3978E-02

[0106] Table 8 - 1

[0107]

[0108]

[0109] Table 8 - 2

[0110] Figure 8A Shows the axial chromatic aberration curve of the optical imaging lens of Example 4, which represents the deviation of the convergence points of light rays of different wavelengths after passing through the lens. Figure 8B Shows the astigmatism curve of the optical imaging lens of Example 4, which represents the meridional image plane curvature and the sagittal image plane curvature.Figure 8C The distortion curve of the optical imaging lens of Embodiment 4 is shown, which represents the distortion magnitude values corresponding to different image heights. Figure 8D The longitudinal chromatic aberration curve of the optical imaging lens of Embodiment 4 is shown, which represents the deviation of different image heights on the imaging plane after light passes through the lens. According to Figures 8A to 8D it can be known that the optical imaging lens given in Embodiment 4 can achieve good imaging quality.

[0111] Example 5

[0112] The following refers to Figures 9 to 10D to describe the optical imaging lens according to Embodiment 5 of the present application. Figure 9 The structural schematic diagram of the optical imaging lens according to Embodiment 5 of the present application is shown.

[0113] As Figure 9 shown, the optical imaging lens sequentially includes, from the object side to the image side: a first lens E1, a stop STO, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a filter E6, and an imaging surface S13.

[0114] The first lens E1 has a negative optical power, its object side surface S1 is concave, and its image side surface S2 is concave. The second lens E2 has a positive optical power, its object side surface S3 is concave, and its image side surface S4 is convex. The third lens E3 has a negative optical power, its object side surface S5 is convex, and its image side surface S6 is concave. The fourth lens E4 has a positive optical power, its object side surface S7 is concave, and its image side surface S8 is convex. The fifth lens E5 has a negative optical power, its object side surface S9 is concave, and its image side surface S10 is concave. The filter E6 has an object side surface S11 and an image side surface S12. Light from the object sequentially passes through the surfaces S1 to S12 and finally forms an image on the imaging surface S13.

[0115] In this example, the total effective focal length f of the optical imaging lens is 1.87 mm, the total length TTL of the optical imaging lens is 5.60 mm, half of the diagonal length of the effective pixel area on the imaging surface S13 of the optical imaging lens is ImgH = 3.63 mm, half of the maximum field of view angle of the optical imaging lens is Semi - FOV = 63.9°, and the aperture value Fno of the optical imaging lens is 2.27.

[0116] Table 9 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 10 - 1 and 10 - 2 show the high - order term coefficients available 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.

[0117]

[0118]

[0119] Table 9

[0120] Face number A4 A6 A8 A10 A12 A14 A16 S1 3.9750E-01 -1.7838E+00 7.7353E+00 -2.3894E+01 5.2114E+01 -8.1552E+01 9.2875E+01 S2 4.1688E-01 -5.3279E-01 -6.2108E+00 9.1732E+01 -6.4223E+02 2.9233E+03 -9.2934E+03 S3 7.2585E-02 -1.4454E+01 5.5128E+02 -1.2598E+04 1.7690E+05 -1.4720E+06 5.3945E+06 S4 2.1256E-01 -1.0690E+01 1.9499E+02 -2.2589E+03 1.7544E+04 -9.4504E+04 3.6195E+05 S5 -7.5634E-02 -1.3290E+00 1.6318E+01 -1.3671E+02 7.5947E+02 -2.8207E+03 7.2437E+03 S6 -5.3349E-02 6.5078E-01 -4.3393E+00 1.3379E+01 -2.1941E+01 1.5214E+01 1.2712E+01 S7 -2.0146E-01 1.1038E+00 -3.1863E+00 6.6629E+00 -1.0712E+01 1.3043E+01 -1.1811E+01 S8 8.9402E-01 -4.5752E+00 1.6824E+01 -4.1409E+01 6.9674E+01 -8.2402E+01 6.9886E+01 S9 5.3916E-01 -1.8536E+00 4.8149E+00 -9.4664E+00 1.2715E+01 -1.1561E+01 7.1855E+00 S10 5.4658E-02 -3.3123E-01 2.0427E-01 5.0261E-02 -1.4677E-01 1.0260E-01 -4.1388E-02

[0121] Table 10-1

[0122] Face number A18 A20 A22 A24 A26 A28 A30 S1 -7.7521E+01 4.7350E+01 -2.0906E+01 6.4913E+00 -1.3438E+00 1.6641E-01 -9.3203E-03 S2 2.1089E+04 -3.4166E+04 3.8915E+04 -3.0153E+04 1.4957E+04 -4.2139E+03 4.9990E+02 S3 2.2670E+07 -4.1026E+08 2.5164E+09 -8.8563E+09 1.8822E+10 -2.2547E+10 1.1739E+10 S4 -9.9920E+05 1.9926E+06 -2.8414E+06 2.8217E+06 -1.8509E+06 7.1960E+05 -1.2531E+05 S5 -1.3177E+04 1.7143E+04 -1.5866E+04 1.0208E+04 -4.3424E+03 1.0986E+03 -1.2522E+02 S6 -4.3684E+01 5.2889E+01 -3.8114E+01 1.7556E+01 -5.0746E+00 8.3890E-01 -6.0415E-02 S7 7.8772E+00 -3.8366E+00 1.3449E+00 -3.2988E-01 5.3677E-02 -5.2003E-03 2.2684E-04 S8 -4.2960E+01 1.9157E+01 -6.1306E+00 1.3713E+00 -2.0342E-01 1.7967E-02 -7.1479E-04 S9 -3.0513E+00 8.6424E-01 -1.5140E-01 1.2469E-02 5.0128E-04 -1.9282E-04 1.1719E-05 S10 1.1019E-02 -2.0218E-03 2.5783E-04 -2.2489E-05 1.2811E-06 -4.2964E-08 6.4361E-10

[0123] Table 10-2

[0124] Figure 10A The axial chromatic aberration curve of the optical imaging lens of Example 5 is shown, which represents the deviation of the convergence points of light rays with different wavelengths after passing through the lens. Figure 10B The astigmatism curve of the optical imaging lens of Example 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 Example 5 is shown, which represents the distortion magnitude values corresponding to different image heights. Figure 10D The lateral chromatic aberration curve of the optical imaging lens of Example 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 seen that the optical imaging lens given in Example 5 can achieve good imaging quality.

[0125] Example 6

[0126] The following refers to Figures 11 to 12D to describe the optical imaging lens according to Embodiment 6 of the present application. Figure 11 The structural schematic diagram of the optical imaging lens according to Embodiment 6 of the present application is shown.

[0127] As Figure 11 shown, the optical imaging lens sequentially includes, from the object side to the image side: a first lens E1, a stop STO, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a filter E6, and an imaging surface S13.

[0128] The first lens E1 has a negative optical power, its object surface S1 is concave, and its image surface S2 is concave. The second lens E2 has a positive optical power, its object surface S3 is convex, and its image surface S4 is convex. The third lens E3 has a negative optical power, its object surface S5 is convex, and its image surface S6 is concave. The fourth lens E4 has a positive optical power, its object surface S7 is convex, and its image surface S8 is convex. The fifth lens E5 has a negative optical power, its object surface S9 is concave, and its image surface S10 is concave. The filter E6 has an object surface S11 and an image surface S12. Light from the object sequentially passes through the surfaces S1 to S12 and finally forms an image on the imaging surface S13.

[0129] In this example, the total effective focal length f of the optical imaging lens is 2.07 mm, the total length TTL of the optical imaging lens is 5.91 mm, half of the diagonal length of the effective pixel region on the imaging surface S13 of the optical imaging lens, ImgH, is 3.63 mm, half of the maximum field of view angle of the optical imaging lens, Semi-FOV, is 64.1°, and the aperture value Fno of the optical imaging lens is 2.27.

[0130] Table 11 shows the basic parameter table of the optical imaging lens of Example 6, where the units of the radius of curvature, thickness / distance, and focal length are all millimeters (mm). Tables 12-1 and 12-2 show the high-order term coefficients of the aspherical mirror surfaces that can be used in Example 6, where each aspherical surface type can be defined by formula (1) given in Example 1 above.

[0131]

[0132]

[0133] Table 11

[0134] Face number A4 A6 A8 A10 A12 A14 A16 S1 2.4160E-01 -4.8599E-01 1.3536E+00 -3.1616E+00 5.5908E+00 -7.3315E+00 7.1204E+00 S2 3.5389E-01 -8.1089E-01 5.0072E+00 -3.3406E+01 1.8611E+02 -7.6436E+02 2.2615E+03 S3 -4.2528E-02 1.5152E+00 -4.0131E+01 6.4513E+02 -7.2278E+03 5.7921E+04 -3.3472E+05 S4 -3.6894E-01 1.5954E+00 -2.1653E+00 -4.0181E+01 4.1835E+02 -2.2272E+03 7.7302E+03 S5 -1.0664E-02 -7.4396E-01 4.5186E+00 -1.8328E+01 5.4563E+01 -1.1913E+02 1.8949E+02 S6 -2.2577E-01 6.5653E-01 -1.7973E+00 4.0764E+00 -6.8087E+00 8.1788E+00 -7.1265E+00 S7 -6.1798E-02 1.6398E-01 -3.5156E-01 6.2871E-01 -8.2603E-01 7.6473E-01 -5.0142E-01 S8 7.2356E-01 -1.9595E+00 3.5377E+00 -4.6388E+00 4.5668E+00 -3.3841E+00 1.8772E+00 S9 5.5037E-01 -1.4180E+00 1.5964E+00 -1.0310E+00 3.8610E-01 -6.4764E-02 -1.0501E-02 S10 -8.3214E-02 -2.7710E-01 3.5589E-01 -2.2434E-01 8.9134E-02 -2.4202E-02 4.6592E-03

[0135] Table 12-1

[0136] Face number A18 A20 A22 A24 A26 A28 A30 S1 -5.1185E+00 2.7077E+00 -1.0387E+00 2.8065E-01 -5.0600E-02 5.4604E-03 -2.6660E-04 S2 -4.8192E+03 7.3912E+03 -8.0771E+03 6.1304E+03 -3.0679E+03 9.0912E+02 -1.2067E+02 S3 1.3957E+06 -4.1776E+06 8.8573E+06 -1.2947E+07 1.2386E+07 -6.9704E+06 1.7477E+06 S4 -1.8651E+04 3.1905E+04 -3.8591E+04 3.2263E+04 -1.7725E+04 5.7531E+03 -8.3524E+02 S5 -2.1939E+02 1.8432E+02 -1.1104E+02 4.6689E+01 -1.2994E+01 2.1476E+00 -1.5936E-01 S6 4.5447E+00 -2.1217E+00 7.1677E-01 -1.7041E-01 2.7011E-02 -2.5588E-03 1.0945E-04 S7 2.3548E-01 -7.9496E-02 1.9129E-02 -3.2001E-03 3.5345E-04 -2.3157E-05 6.8109E-07 S8 -7.7457E-01 2.3557E-01 -5.1939E-02 8.0569E-03 -8.3245E-04 5.1370E-05 -1.4311E-06 S9 9.0664E-03 -2.5406E-03 4.1636E-04 -4.3213E-05 2.8028E-06 -1.0400E-07 1.6891E-09 S10 -6.4666E-04 6.4894E-05 -4.6616E-06 2.3352E-07 -7.7412E-09 1.5254E-10 -1.3518E-12

[0137] Table 12-2

[0138] Figure 12A Shows the axial chromatic aberration curve of the optical imaging lens of Example 6, which represents the deviation of the convergence points of light rays of different wavelengths after passing through the lens. Figure 12B Shows the astigmatism curve of the optical imaging lens of Example 6, which represents the meridional image plane curvature and the sagittal image plane curvature. Figure 12C Shows the distortion curve of the optical imaging lens of Example 6, which represents the distortion magnitude values corresponding to different image heights. Figure 12D Shows the lateral chromatic aberration curve of the optical imaging lens of Example 6, which represents the deviation of different image heights on the imaging surface after the light rays pass through the lens. According to Figures 12A to 12D It can be seen that the optical imaging lens given in Example 6 can achieve good imaging quality.

[0139] In summary, Examples 1 to 6 respectively satisfy the relationships shown in Table 13.

[0140] Conditional / Example 1 2 3 4 5 6 ImgH / (f2 + f5) 3.71 2.64 0.07 4.03 4.76 3.83 R9 / f3 3.97 5.97 4.58 4.04 3.97 4.22 CT5 / T45 2.57 1.23 3.17 3.21 3.41 2.33 ET4 / CT4 0.16 0.25 0.23 0.17 0.17 0.15 R4 / R8 2.40 2.75 1.27 2.45 1.91 2.34 R1 / f12 -2.51 -4.35 -2.49 -1.21 -2.04 -3.13 f123 / f 1.97 1.62 2.72 1.85 2.24 2.02 SAG42 / SAG32 -4.14 -9.17 -4.17 -3.83 -9.43 -3.94 f45 / (T34 + T45) 5.70 7.24 4.05 5.85 5.10 5.23

[0141] Table 13

[0142] The present application also provides an imaging device, the electronic photosensitive element of which may be a charge-coupled device (CCD) or a complementary metal-oxide-semiconductor device (CMOS). The imaging device may be an independent imaging device such as a digital camera, or an imaging module integrated in a mobile electronic device such as a mobile phone. The imaging device is equipped with the optical imaging lens described above.

[0143] The above description is only a preferred embodiment of the present application and an explanation of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution 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 inventive concept. For example, the technical solution 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. An optical imaging lens, characterized in that, In order from the object side to the image side along the optical axis, it includes: A first lens with a focal power, whose object side is concave; A second lens with a positive focal power, whose image side is convex; A third lens with a negative focal power, whose object side is convex and image side is concave; A fourth lens with a positive focal power, whose image side is convex; and A fifth lens with a focal power, whose object side is concave; The arrangement of the focal powers of the first lens and the fifth lens includes positive-negative, negative-negative, and negative-positive; The number of lenses with focal power in the optical imaging lens is five; Half of the maximum field of view angle Semi-FOV of the optical imaging lens satisfies: 61.1° ≤ Semi-FOV ≤ 64.6°; Half of the diagonal length ImgH of the effective pixel area on the imaging surface of the optical imaging lens, the effective focal length f2 of the second lens, and the effective focal length f5 of the fifth lens satisfy: 0.07 ≤ ImgH / (f2 + f5) ≤ 4.76; and The combined focal length f45 of the fourth lens and the fifth lens, the interval distance T34 between the third lens and the fourth lens on the optical axis, and the interval distance T45 between the fourth lens and the fifth lens on the optical axis satisfy: 4.05 ≤ f45 / (T34 + T45) ≤ 7.24; The radius of curvature R9 of the object side of the fifth lens and the effective focal length f3 of the third lens satisfy: 3.97 ≤ R9 / f3 < 6.0; 2. The optical imaging lens according to claim 1, characterized in that, The central thickness CT5 of the fifth lens on the optical axis and the interval distance T45 between the fourth lens and the fifth lens on the optical axis satisfy: 1.23 ≤ CT5 / T45 ≤ 3.41; 3. The optical imaging lens according to claim 1, wherein, The edge thickness ET4 of the fourth lens and the central thickness CT4 of the fourth lens on the optical axis satisfy: 0.15 ≤ ET4 / CT4 ≤ 0.25; 4. The optical imaging lens according to claim 1, wherein, The radius of curvature R4 of the image side of the second lens and the radius of curvature R8 of the image side of the fourth lens satisfy: 1.27 ≤ R4 / R8 ≤ 2.75; 5. The optical imaging lens according to claim 1, characterized in that, The radius of curvature R1 of the object side of the first lens and the combined focal length f12 of the first lens and the second lens satisfy: -4.35 ≤ R1 / f12 ≤ -1.21; 6. The optical imaging lens according to claim 1, wherein, The combined focal length f123 of the first lens, the second lens, and the third lens and the total effective focal length f of the optical imaging lens satisfy: 1.62 ≤ f123 / f ≤ 2.72; 7. The optical imaging lens according to claim 1, wherein The distance SAG32 on the optical axis from the intersection of the image side of the third lens and the optical axis to the vertex of the effective radius of the image side of the third lens and the distance SAG42 on the optical axis from the intersection of the image side of the fourth lens and the optical axis to the vertex of the effective radius of the image side of the fourth lens satisfy: -9.43 ≤ SAG42 / SAG32 ≤ -3.83;

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