Optical imaging lens

Abstract

The present application discloses an optical imaging lens, which includes, in order from the object side to the image side along the optical axis: a first lens with optical focal length; a second lens; a third lens, whose object side surface is concave and whose image side surface is convex; a fourth lens with negative optical focal length, whose object side surface is concave and whose image side surface is concave; a fifth lens with optical focal length; a sixth lens; and a seventh lens. The optical imaging lens satisfies: TTL / ImgH≤1.5; and FOV>100°, wherein TTL is the distance from the object side surface of the first lens to the imaging surface of the optical imaging lens along the optical axis, ImgH is half of the diagonal length of the effective pixel area on the imaging surface, and FOV is the maximum field of view of the optical imaging lens.

Description

Technical Field

[0001] The present application relates to an optical imaging lens, and more specifically, to an optical imaging lens including seven lenses. Background Art

[0002] With the rapid development of electronic products, the application of camera lenses for electronic products is becoming more and more widespread. In addition, as electronic products are gradually moving towards thinness and lightness, camera lenses for electronic products need to have a thin and light appearance while meeting good image quality, so as to effectively reduce product costs and make electronic products have a more user-friendly design.

[0003] Generally, the photosensitive device of a camera lens is either a charge coupled device (CCD) or a complementary metal oxide semiconductor (CMOS). Due to the advancement of semiconductor manufacturing process technology, the pixel size of photosensitive devices continues to shrink. In addition, as today's electronic products are developing in a trend of having good functions and a thin and small appearance, miniaturized camera lenses with good imaging quality are currently the focus of research and development.

[0004] In order to meet the requirements of high pixel and wide field of view, existing technologies often use large aperture configurations, which results in a relatively long lens size. It is known that existing optical lenses are difficult to simultaneously meet the requirements of large aperture and short total length, especially the peripheral image is more sensitive to the aperture size. In addition, in order to further increase the field of view, it often leads to increased distortion and too large an angle of the main light, resulting in insufficient resolution of the lens. Summary of the invention

[0005] On the one hand, the present application provides such an optical imaging lens, which may include, in order from the object side to the image side along the optical axis: a first lens with optical power; a second lens; a third lens, whose object side surface is concave and whose image side surface is convex; a fourth lens with negative optical power, whose object side surface is concave and whose image side surface is concave; a fifth lens with optical power; a sixth lens; and a seventh lens. The optical imaging lens may satisfy: TTL / ImgH≤1.5; and FOV>100°, wherein TTL is the distance from the object side surface of the first lens to the imaging surface of the optical imaging lens along the optical axis, ImgH is half of the diagonal length of the effective pixel area on the imaging surface, and FOV is the maximum field of view of the optical imaging lens.

[0006] In some embodiments, the optical imaging lens may satisfy: 0<(R9+R10) / f<2.0, where R9 is the radius of curvature of the object side surface of the fifth lens, R10 is the radius of curvature of the image side surface of the fifth lens, and f is the effective focal length of the optical imaging lens.

[0007] In some embodiments, the optical imaging lens may satisfy: 0.5<R10 / f<1.0, where R10 is the radius of curvature of the image-side surface of the fifth lens element, and f is the effective focal length of the optical imaging lens.

[0008] In some embodiments, the optical imaging lens may satisfy: 3.5<|f4×tan(FOV / 2)| / R9<5.5, where f4 is the effective focal length of the fourth lens, FOV is the maximum field of view of the optical imaging lens, and R9 is the radius of curvature of the object side of the fifth lens.

[0009] In some embodiments, the optical imaging lens may satisfy: 2.0≤f12 / f≤3.2, where f12 is the combined focal length of the first lens and the second lens, and f is the effective focal length of the optical imaging lens.

[0010] In some embodiments, the optical imaging lens may satisfy: 2.0≤(CT4+CT5) / T45≤4.5, wherein CT4 is the center thickness of the fourth lens along the optical axis, CT5 is the center thickness of the fifth lens along the optical axis, and T45 is the spacing distance between the fourth lens and the fifth lens along the optical axis.

[0011] In some embodiments, the optical imaging lens may satisfy: 3.4≤SAG62 / SAG61≤9.8, wherein SAG61 is the distance from the intersection of the object side surface of the sixth lens and the optical axis to the vertex of the effective radius of the object side surface of the sixth lens along the optical axis, and SAG62 is the distance from the intersection of the image side surface of the sixth lens and the optical axis to the vertex of the effective radius of the image side surface of the sixth lens along the optical axis.

[0012] In some embodiments, the optical imaging lens may satisfy: 3.0≤f2 / f123+f3 / f123≤4.5, where f2 is the effective focal length of the second lens, f3 is the effective focal length of the third lens, and f123 is the combined focal length of the first lens, the second lens, and the third lens.

[0013] In some embodiments, the optical imaging lens may satisfy: 0.5≤f2 / f3≤1.5, where f2 is the effective focal length of the second lens, and f3 is the effective focal length of the third lens.

[0014] In some embodiments, the optical imaging lens may satisfy: 1.0≤(CT1+CT2+CT3+CT4+CT5) / (CT6+CT7)≤1.5, wherein CT1 is the center thickness of the first lens along the optical axis, CT2 is the center thickness of the second lens along the optical axis, CT3 is the center thickness of the third lens along the optical axis, CT4 is the center thickness of the fourth lens along the optical axis, CT5 is the center thickness of the fifth lens along the optical axis, CT6 is the center thickness of the sixth lens along the optical axis, and CT7 is the center thickness of the seventh lens along the optical axis.

[0015] In some embodiments, the optical imaging lens may satisfy: -4.0≤(R5+R6) / f3≤-1.0, where R5 is the radius of curvature of the object side surface of the third lens, R6 is the radius of curvature of the image side surface of the third lens, and f3 is the effective focal length of the third lens.

[0016] In some embodiments, the optical imaging lens may satisfy: 1.5≤∑CT / ∑AT≤2.3, wherein ∑AT is the sum of the spacing distances between any two adjacent lenses from the first lens to the seventh lens along the optical axis, and ∑CT is the sum of the center distances of the first lens to the seventh lens along the optical axis.

[0017] On the other hand, the present application provides such an optical imaging lens, which may include, in order from the object side to the image side along the optical axis: a first lens having optical focal length; a second lens; a third lens, whose object side surface is concave and whose image side surface is convex; a fourth lens; a fifth lens having optical focal length; a sixth lens; and a seventh lens. The optical imaging lens satisfies: TTL / ImgH≤1.5; FOV>100°; and 0<(R9+R10) / f<2.0, wherein TTL is the distance from the object side surface of the first lens to the imaging surface of the optical imaging lens along the optical axis, ImgH is half of the diagonal length of the effective pixel area on the imaging surface, FOV is the maximum field of view angle of the optical imaging lens, R9 is the radius of curvature of the object side surface of the fifth lens, R10 is the radius of curvature of the image side surface of the fifth lens, and f is the effective focal length of the optical imaging lens.

[0018] In some embodiments, the optical imaging lens may satisfy: 0.5<R10 / f<1.0, where R10 is the radius of curvature of the image-side surface of the fifth lens element, and f is the effective focal length of the optical imaging lens.

[0019] In some embodiments, the optical imaging lens may satisfy: 3.5<|f4×tan(FOV / 2)| / R9<5.5, where f4 is the effective focal length of the fourth lens, FOV is the maximum field of view of the optical imaging lens, and R9 is the radius of curvature of the object side of the fifth lens.

[0020] In some embodiments, the optical imaging lens may satisfy: 2.0≤f12 / f≤3.2, where f12 is the combined focal length of the first lens and the second lens, and f is the effective focal length of the optical imaging lens.

[0021] In some embodiments, the optical imaging lens may satisfy: 2.0≤(CT4+CT5) / T45≤4.5, wherein CT4 is the center thickness of the fourth lens along the optical axis, CT5 is the center thickness of the fifth lens along the optical axis, and T45 is the spacing distance between the fourth lens and the fifth lens along the optical axis.

[0022] In some embodiments, the optical imaging lens may satisfy: 3.4≤SAG62 / SAG61≤9.8, wherein SAG61 is the distance from the intersection of the object side surface of the sixth lens and the optical axis to the vertex of the effective radius of the object side surface of the sixth lens along the optical axis, and SAG62 is the distance from the intersection of the image side surface of the sixth lens and the optical axis to the vertex of the effective radius of the image side surface of the sixth lens along the optical axis.

[0023] In some embodiments, the optical imaging lens may satisfy: 3.0≤f2 / f123+f3 / f123≤4.5, where f2 is the effective focal length of the second lens, f3 is the effective focal length of the third lens, and f123 is the combined focal length of the first lens, the second lens, and the third lens.

[0024] In some embodiments, the optical imaging lens may satisfy: 0.5≤f2 / f3≤1.5, where f2 is the effective focal length of the second lens, and f3 is the effective focal length of the third lens.

[0025] In some embodiments, the optical imaging lens may satisfy: 1.0≤(CT1+CT2+CT3+CT4+CT5) / (CT6+CT7)≤1.5, wherein CT1 is the center thickness of the first lens along the optical axis, CT2 is the center thickness of the second lens along the optical axis, CT3 is the center thickness of the third lens along the optical axis, CT4 is the center thickness of the fourth lens along the optical axis, CT5 is the center thickness of the fifth lens along the optical axis, CT6 is the center thickness of the sixth lens along the optical axis, and CT7 is the center thickness of the seventh lens along the optical axis.

[0026] In some embodiments, the optical imaging lens may satisfy: -4.0≤(R5+R6) / f3≤-1.0, where R5 is the radius of curvature of the object side surface of the third lens, R6 is the radius of curvature of the image side surface of the third lens, and f3 is the effective focal length of the third lens.

[0027] In some embodiments, the optical imaging lens may satisfy: 1.5≤∑CT / ∑AT≤2.3, wherein ∑AT is the sum of the spacing distances between any two adjacent lenses from the first lens to the seventh lens along the optical axis, and ∑CT is the sum of the center distances of the first lens to the seventh lens along the optical axis. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Other features, purposes and advantages of the present application will become more apparent through the following detailed description of non-limiting embodiments in conjunction with the accompanying drawings. In the accompanying drawings:

[0029] Figure 1 A schematic structural diagram of an optical imaging lens according to Embodiment 1 of the present application is shown;

[0030] FIG. 2A to FIG. 2DThe axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the optical imaging lens of Example 1 are respectively shown;

[0031] Figure 3 A schematic structural diagram of an optical imaging lens according to Embodiment 2 of the present application is shown;

[0032] FIG. 4A to FIG. 4D The axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the optical imaging lens of Example 2 are respectively shown;

[0033] Figure 5 A schematic structural diagram of an optical imaging lens according to Embodiment 3 of the present application is shown;

[0034] FIG. 6A to FIG. 6D The axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the optical imaging lens of Example 3 are respectively shown;

[0035] Figure 7 A schematic structural diagram of an optical imaging lens according to Embodiment 4 of the present application is shown;

[0036] FIG. 8A to FIG. 8D The axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the optical imaging lens of Example 4 are respectively shown;

[0037] Fig. 9 A schematic structural diagram of an optical imaging lens according to Embodiment 5 of the present application is shown;

[0038] FIG. 10A to FIG. 10D The axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the optical imaging lens of Example 5 are respectively shown;

[0039] Fig.11 A schematic structural diagram of an optical imaging lens according to Embodiment 6 of the present application is shown; and

[0040] FIG. 12A to FIG. 12D The axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the optical imaging lens of Example 6 are respectively shown. DETAILED DESCRIPTION

[0041] In order to better understand the present application, a more detailed description will be made of various aspects of the present application 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 are not intended to 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.

[0042] It should be noted that in this specification, the expressions of first, second, third, etc. are only used to distinguish one feature from another feature, and do not represent any limitation on the features. Therefore, without departing from the teaching of the present application, the first lens discussed below may also be referred to as the second lens or the third lens.

[0043] In the drawings, the thickness, size and shape of the lenses have been slightly exaggerated for ease of explanation. Specifically, the shapes of the spherical or aspherical surfaces shown in the drawings are shown by way of example. That is, the shapes of the spherical or aspherical surfaces are not limited to the shapes of the spherical or aspherical surfaces shown in the drawings. The drawings are only examples and are not drawn strictly to scale.

[0044] In this article, 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 is called the object side of the lens, and the surface of each lens closest to the imaging plane is called the image side of the lens.

[0045] It should also be understood that the terms "comprises", "including", "having", "includes" and / or "comprising", 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 expressions such as "at least one of..." appear after a list of listed features, they modify the entire listed features rather than modifying the individual elements in the list. In addition, when describing embodiments of the present application, "may" is used to mean "one or more embodiments of the present application". And, the term "exemplary" is intended to refer to an example or illustration.

[0046] Unless otherwise defined, all terms (including technical terms and scientific terms) used in this article have the same meaning as commonly understood by ordinary technicians in the field to which this application belongs. It should also be understood that terms (such as terms defined in commonly used dictionaries) should be interpreted as having the same meaning as their meaning in the context of the relevant technology, and will not be interpreted in an idealized or overly formal sense unless explicitly defined in this article.

[0047] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0048] The features, principles and other aspects of the present application are described in detail below.

[0049] The optical imaging lens according to the exemplary embodiment of the present application includes, for example, seven lenses with optical power, for example, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. The first lens to the seventh lens can be arranged in sequence from the object side to the image side along the optical axis. Among the first lens to the seventh lens, any two adjacent lenses can have an air gap between them.

[0050] In an exemplary embodiment, the first lens has positive power or negative power. At least one of the object-side surface and the image-side surface of the first lens may be a concave surface.

[0051] In an exemplary embodiment, the second lens may have positive optical power. At least one of the object-side surface and the image-side surface of the second lens may be a convex surface. Alternatively, the object-side surface of the second lens may be a convex surface.

[0052] In an exemplary embodiment, the third lens may have positive refractive power, and its object-side surface may be concave and its image-side surface may be convex.

[0053] In example embodiments, the fourth lens may have negative power, an object-side surface thereof may be a concave surface, and an image-side surface thereof may be a concave surface.

[0054] In an exemplary embodiment, the fifth lens has positive power or negative power.The object-side surface of the fifth lens may be a convex surface, and the image-side surface may be a concave surface.

[0055] In an exemplary embodiment, the sixth lens may have positive power. At least one of the object-side surface and the image-side surface of the sixth lens may be a convex surface. Alternatively, the image-side surface of the sixth lens may be a convex surface.

[0056] In an exemplary embodiment, the seventh lens may have negative optical power. At least one of the object-side surface and the image-side surface of the seventh lens may be a concave surface. Optionally, the image-side surface of the seventh lens may be a concave surface.

[0057] In an exemplary embodiment, the distance TTL from the object side of the first lens to the imaging surface of the optical imaging lens along the optical axis and half the diagonal length of the effective pixel area on the imaging surface of the optical imaging lens ImgH may satisfy TTL / ImgH≤1.5. When TTL and ImgH satisfy TTL / ImgH≤1.5, it is beneficial to ultra-thinness and miniaturization of the system.

[0058] In an exemplary embodiment, the maximum field of view FOV of the optical imaging lens may satisfy FOV>100°. When the FOV satisfies the above conditions, it is beneficial to obtain a larger field of view and improve the system's ability to collect object information. For example, the FOV may satisfy FOV>105°.

[0059] In an exemplary embodiment, the radius of curvature R9 of the object side surface of the fifth lens, the radius of curvature R10 of the image side surface of the fifth lens, and the effective focal length f of the optical imaging lens may satisfy 0<(R9+R10) / f<2.0. For example, R9, R10, and f may satisfy 1.2<(R9+R10) / f<2.0. When (R9+R10) / f satisfies the above conditions, it is beneficial to reduce the distortion value of the lens, thereby obtaining an optical lens with a large field of view and small distortion characteristics.

[0060] In an exemplary embodiment, the curvature radius R10 of the image side surface of the fifth lens and the effective focal length f of the optical imaging lens may satisfy 0.5<R10 / f<1.0. Reasonable configuration of the optical power of the fifth lens is conducive to correcting the chromatic aberration of the optical lens and ensuring the compactness of the structure of the optical lens.

[0061] In an exemplary embodiment, the effective focal length f4 of the fourth lens, the maximum field of view FOV of the optical imaging lens, and the curvature radius R9 of the object side surface of the fifth lens may satisfy 3.5<|f4×tan(FOV / 2)| / R9<5.5. Reasonable configuration of the above conditional expressions is conducive to obtaining a larger field of view angle while ensuring the compactness of the optical lens.

[0062] In an exemplary embodiment, the combined focal length f12 of the first lens and the second lens and the effective focal length f of the optical imaging lens may satisfy 2.0≤f12 / f≤3.2. By properly allocating the focal length of the lens, it is beneficial to correct the off-axis field of view, chromatic aberration and field curvature, thereby improving the clarity of the imaging.

[0063] In an exemplary embodiment, the center thickness CT4 of the fourth lens along the optical axis, the center thickness CT5 of the fifth lens along the optical axis, and the spacing distance T45 between the fourth lens and the fifth lens along the optical axis may satisfy 2.0≤(CT4+CT5) / T45≤4.5. By controlling the center thickness of the lens and the spacing distance on the axis, it is helpful to ensure the compactness of the structure of the optical lens, while reducing the sensitivity of the spacing thickness to the field curvature, which is helpful to improve the assembly yield of the lens.

[0064] In an exemplary embodiment, the distance SAG61 from the intersection of the object side surface of the sixth lens and the optical axis to the effective radius vertex of the object side surface of the sixth lens along the optical axis and the distance SAG62 from the intersection of the image side surface of the sixth lens and the optical axis to the effective radius vertex of the image side surface of the sixth lens along the optical axis may satisfy 3.4≤SAG62 / SAG61≤9.8. By constraining the ratio of the sag heights of the object side surface and the image side surface of the sixth lens at the effective radius vertex, it is helpful to control the image side surface of the sixth lens from being excessively curved, so that it meets the requirements of machinability and processability. At the same time, it is helpful to correct the external field of view distortion of the lens.

[0065] In an exemplary embodiment, the center thickness CT6 of the sixth lens along the optical axis and the edge thickness ET6 of the sixth lens may satisfy 3.0≤CT6 / ET6≤4.0. By constraining the thickness ratio within the effective diameter range of the sixth lens, the processability and manufacturability requirements of the sixth lens are met.

[0066] In an exemplary embodiment, the effective focal length f2 of the second lens, the effective focal length f3 of the third lens, and the combined focal length f123 of the first lens, the second lens, and the third lens may satisfy 3.0≤f2 / f123+f3 / f123≤4.5. Reasonable configuration of the effective focal lengths of the second and third lenses is conducive to correcting the spherical aberration and axial chromatic aberration of the optical lens and improving the imaging quality of the lens. At the same time, it is conducive to achieving the characteristics of large aperture and large field of view of the lens.

[0067] In an exemplary embodiment, the effective focal length f2 of the second lens and the effective focal length f3 of the third lens may satisfy 0.5≤f2 / f3≤1.5. Reasonable control of the ratio of the second lens to the third lens is conducive to correcting the off-axis field curvature of the optical lens and improving the imaging quality.

[0068] In an exemplary embodiment, the center thickness CT1 of the first lens along the optical axis, the center thickness CT2 of the second lens along the optical axis, the center thickness CT3 of the third lens along the optical axis, the center thickness CT4 of the fourth lens along the optical axis, the center thickness CT5 of the fifth lens along the optical axis, the center thickness CT6 of the sixth lens along the optical axis, and the center thickness CT7 of the seventh lens along the optical axis may satisfy 1.0≤(CT1+CT2+CT3+CT4+CT5) / (CT6+CT7)≤1.5. Reasonable configuration of the center thickness of each lens is conducive to ensuring the compactness of the structure of the optical lens, and is conducive to meeting the machinability and processability requirements of the lens.

[0069] In an exemplary embodiment, the radius of curvature R5 of the object side surface of the third lens, the radius of curvature R6 of the image side surface of the third lens, and the effective focal length f3 of the third lens may satisfy -4.0≤(R5+R6) / f3≤-1.0. Reasonable configuration of the ratio of the radius of curvature and the focal length of the third lens is conducive to reducing the incident angle of the light beam on the lens, and further conducive to the correction of off-axis aberrations by subsequent lenses.

[0070] In an exemplary embodiment, the sum of the spacing distances ∑AT between any two adjacent lenses from the first lens to the seventh lens along the optical axis and the sum of the center distances ∑CT between the first lens to the seventh lens along the optical axis respectively may satisfy 1.5≤∑CT / ∑AT≤2.3. Reasonable configuration of the center thickness and the on-axis spacing distance of each lens group is conducive to ensuring the compactness of the optical lens structure and meeting the ultra-thin requirements.

[0071] In the embodiment of the present application, at least one of the mirror surfaces of each lens is an aspherical lens, that is, at least one of the mirror surfaces from the object side of the first lens to the image side of the seventh lens is an aspherical lens. The characteristic of the aspherical lens is that the curvature changes continuously from the center of the lens to the periphery of the lens. Unlike a spherical lens with a constant curvature from the center of the lens to the periphery of the lens, an aspherical lens has a better curvature radius characteristic, and has the advantages of improving distortion aberration and improving astigmatism aberration. After adopting an aspherical lens, the aberration that occurs during imaging can be eliminated as much as possible, thereby improving the imaging quality. Optionally, at least one of the object side and image side of each lens in the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens and the seventh lens is an aspherical mirror surface. Optionally, the object side and image side of each lens in the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens and the seventh lens are all aspherical mirror surfaces.

[0072] However, those skilled in the art should understand that, without departing from the technical solution claimed in the present 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 seven lenses are described as an example in the embodiments, the optical imaging lens is not limited to including seven lenses. If necessary, the optical imaging lens may also include other numbers of lenses.

[0073] Specific embodiments of the optical imaging lens applicable to the above-mentioned embodiments are further described below with reference to the accompanying drawings.

[0074] Example 1

[0075] The following reference Figures 1 to 2D An optical imaging lens according to Embodiment 1 of the present application is described. Figure 1 A schematic structural diagram of an optical imaging lens according to Embodiment 1 of the present application is shown.

[0076] like Figure 1 As shown, the optical imaging lens includes, in order from the object side to the image side along the optical axis: a first lens E1, a second lens E2, an aperture STO, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, a filter E8 and an imaging surface S17.

[0077] The first lens E1 has negative power, and its object side surface S1 is concave, and its image side surface S2 is concave. The second lens E2 has positive power, and its object side surface S3 is convex, and its image side surface S4 is concave. The third lens E3 has positive power, and its object side surface S5 is concave, and its image side surface S6 is convex. The fourth lens E4 has negative power, and its object side surface S7 is concave, and its image side surface S8 is concave. The fifth lens E5 has negative power, and its object side surface S9 is convex, and its image side surface S10 is concave. The sixth lens E6 has positive power, and its object side surface S11 is concave, and its image side surface S12 is convex. The seventh lens E7 has negative power, and its object side surface S13 is concave, and its image side surface S14 is concave. The filter E8 has an object side surface S15 and an image side surface S16. The light from the object passes through each surface S1 to S16 in sequence and is finally imaged on the imaging surface S17.

[0078] Table 1 shows the basic parameters of the optical imaging lens of Example 1, wherein the units of the radius of curvature, thickness / distance and focal length are all millimeters (mm).

[0079]

[0080]

[0081] Table 1

[0082] In Example 1, the effective focal length of the optical imaging lens is f=3.56 mm, the distance TTL on the optical axis from the object-side surface S1 of the first lens E1 to the imaging surface S17 is 6.53 mm, half of the diagonal length of the effective pixel area on the imaging surface S17 is ImgH=4.80 mm, the maximum half field of view Semi-FOV of the optical imaging lens is 53.39°, and the aperture value Fno is 1.95.

[0083] In Example 1, the object side surface and the image side surface of any lens among the first lens E1 to the seventh lens E7 are both aspherical surfaces, and the surface shape x of each aspherical lens can be defined by but not limited to the following aspherical surface formula:

[0084]

[0085] Wherein, x is the distance vector height from the vertex of the aspheric surface when the aspheric surface is at a height of h along the optical axis; c is the paraxial curvature of the aspheric surface, c=1 / R (i.e., the paraxial curvature c is the reciprocal of the curvature radius R in Table 1 above); k is the cone coefficient; Ai is the correction coefficient of the i-th order of the aspheric surface. Table 2 below gives the high-order coefficients A4, A6, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19, A20, A21, A22, A23, A24, A25, A26, A27, A28, A29, A30, A31, A32, A33, A34, A35, A36, A37, A38, A39, 10 , A 12 , A 14 , A 16 , A18 and A 20 .

[0086] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 1.4120E-01 -9.5589E-02 8.3229E-02 -6.0545E-02 3.1427E-02 -1.0926E-02 2.3867E-03 -2.9622E-04 1.5973E-05 S2 1.9357E-01 -1.5737E-01 2.4247E-01 -2.9350E-01 2.5072E-01 -1.4377E-01 5.3623E-02 -1.2224E-02 1.2956E-03 S3 3.6047E-02 -7.1842E-02 2.3443E-01 -5.4655E-01 8.3727E-01 -8.3625E-01 5.2043E-01 -1.8647E-01 2.9602E-02 S4 -4.2704E-03 -6.0721E-02 3.0449E-01 -9.5610E-01 1.7931E+00 -2.0905E+00 1.4706E+00 -5.6862E-01 9.3224E-02 S5 -3.5217E-02 -4.4074E-02 1.7046E-01 -8.1362E-01 2.2584E+00 -3.8034E+00 3.7096E+00 -1.9199E+00 4.0482E-01 S6 -8.3425E-03 -2.0858E-01 -1.8535E-01 2.1152E+00 -5.5274E+00 7.6859E+00 -6.1919E+00 2.7313E+00 -5.1224E-01 S7 -1.5361E-02 -7.0410E-02 -7.3613E-01 3.1206E+00 -6.4903E+00 7.9838E+00 -5.9204E+00 2.4519E+00 -4.3574E-01 S8 -5.6961E-02 1.0522E-01 -3.7789E-01 6.7955E-01 -7.6058E-01 5.3611E-01 -2.3221E-01 5.6443E-02 -5.7849E-03 S9 -1.6698E-01 1.8173E-01 -2.1384E-01 1.5150E-01 -4.8573E-02 -4.7331E-03 8.8953E-03 -2.6794E-03 2.8064E-04 S10 -1.6434E-01 1.9305E-01 -2.1816E-01 1.6325E-01 -8.0525E-02 2.6157E-02 -5.3685E-03 6.2789E-04 -3.1805E-05 S11 -9.1617E-02 1.4596E-01 -1.5652E-01 1.2243E-01 -6.7380E-02 2.3995E-02 -5.1423E-03 5.9986E-04 -2.9264E-05 S12 8.8278E-02 -4.3645E-02 2.4446E-02 -1.6394E-02 1.0412E-02 -3.8938E-03 7.8819E-04 -8.1391E-05 3.3799E-06 S13 3.4465E-02 -5.1590E-02 2.0220E-02 -4.0901E-03 5.0404E-04 -3.9580E-05 1.9440E-06 -5.4575E-08 6.6891E-10 S14 -1.1834E-01 3.4841E-02 -8.8122E-03 1.6238E-03 -2.0478E-04 1.6929E-05 -8.6650E-07 2.4702E-08 -2.9822E-10

[0087] Table 2

[0088] Figure 2A The axial chromatic aberration curve of the optical imaging lens of Example 1 is shown, which indicates the deviation of light of different wavelengths from the focal point behind the lens. Figure 2B The astigmatism curve of the optical imaging lens of Example 1 is shown, which represents the meridional image curvature and the sagittal image curvature. Figure 2C The distortion curve of the optical imaging lens of Example 1 is shown, which represents the distortion magnitude values ​​corresponding to different image heights. Figure 2D The magnification chromatic aberration curve of the optical imaging lens of Example 1 is shown, which represents the deviation of different image heights on the imaging surface after the light passes through the lens. FIG. 2A to FIG. 2D It can be seen that the optical imaging lens provided in Example 1 can achieve good imaging quality.

[0089] Example 2

[0090] The following reference Figures 3 to 4D The optical imaging lens according to Embodiment 2 of the present application is described. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to Embodiment 1 will be omitted. Figure 3 A schematic structural diagram of an optical imaging lens according to Embodiment 2 of the present application is shown.

[0091] like Figure 3 As shown, the optical imaging lens includes, in order from the object side to the image side along the optical axis: a first lens E1, a second lens E2, an aperture STO, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, a filter E8 and an imaging surface S17.

[0092] The first lens E1 has negative power, and its object side surface S1 is concave, and its image side surface S2 is concave. The second lens E2 has positive power, and its object side surface S3 is convex, and its image side surface S4 is convex. The third lens E3 has positive power, and its object side surface S5 is concave, and its image side surface S6 is convex. The fourth lens E4 has negative power, and its object side surface S7 is concave, and its image side surface S8 is concave. The fifth lens E5 has negative power, and its object side surface S9 is convex, and its image side surface S10 is concave. The sixth lens E6 has positive power, and its object side surface S11 is concave, and its image side surface S12 is convex. The seventh lens E7 has negative power, and its object side surface S13 is concave, and its image side surface S14 is concave. The filter E8 has an object side surface S15 and an image side surface S16. The light from the object passes through each surface S1 to S16 in sequence and is finally imaged on the imaging surface S17.

[0093] Table 3 shows the basic parameters of the optical imaging lens of Example 2, wherein the units of the radius of curvature, thickness / distance and focal length are all millimeters (mm).

[0094]

[0095] Table 3

[0096] In Example 2, the effective focal length of the optical imaging lens is f=3.55 mm, the distance TTL on the optical axis from the object-side surface S1 of the first lens E1 to the imaging surface S17 is 7.03 mm, half the diagonal length of the effective pixel area on the imaging surface S17 is ImgH=4.80 mm, the maximum half field of view Semi-FOV of the optical imaging lens is 53.42°, and the aperture value Fno is 1.95.

[0097] Table 4 shows the high-order coefficients that can be used for each aspherical mirror surface in Example 2, wherein the surface type of each aspherical surface in Example 2 can be defined by the formula (1) given in Example 1 above.

[0098]

[0099]

[0100] Table 4

[0101] Figure 4A The axial chromatic aberration curve of the optical imaging lens of Example 2 is shown, which indicates that light of different wavelengths deviates from the focal point behind the lens. Figure 4B The astigmatism curve of the optical imaging lens of Example 2 is shown, which represents the meridional image curvature and the sagittal image curvature. Figure 4C The distortion curve of the optical imaging lens of Example 2 is shown, which represents the distortion magnitude values ​​corresponding to different image heights. Figure 4D The magnification chromatic aberration curve of the optical imaging lens of Example 2 is shown, which represents the deviation of different image heights on the imaging surface after the light passes through the lens. FIG. 4A to FIG. 4D It can be seen that the optical imaging lens provided in Example 2 can achieve good imaging quality.

[0102] Example 3

[0103] The following reference Figures 5 to 6D An optical imaging lens according to Embodiment 3 of the present application is described. Figure 5 A schematic structural diagram of an optical imaging lens according to Embodiment 3 of the present application is shown.

[0104] like Figure 5As shown, the optical imaging lens includes, in order from the object side to the image side along the optical axis: a first lens E1, a second lens E2, an aperture STO, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, a filter E8 and an imaging surface S17.

[0105] The first lens E1 has negative power, and its object side surface S1 is convex, and its image side surface S2 is concave. The second lens E2 has positive power, and its object side surface S3 is convex, and its image side surface S4 is concave. The third lens E3 has positive power, and its object side surface S5 is concave, and its image side surface S6 is convex. The fourth lens E4 has negative power, and its object side surface S7 is concave, and its image side surface S8 is concave. The fifth lens E5 has negative power, and its object side surface S9 is convex, and its image side surface S10 is concave. The sixth lens E6 has positive power, and its object side surface S11 is concave, and its image side surface S12 is convex. The seventh lens E7 has negative power, and its object side surface S13 is concave, and its image side surface S14 is concave. The filter E8 has an object side surface S15 and an image side surface S16. The light from the object passes through each surface S1 to S16 in sequence and is finally imaged on the imaging surface S17.

[0106] Table 5 shows the basic parameters of the optical imaging lens of Example 3, wherein the units of the radius of curvature, thickness / distance and focal length are all millimeters (mm).

[0107]

[0108]

[0109] Table 5

[0110] The effective focal length of the optical imaging lens is f=3.55 mm, the distance TTL from the object side surface S1 of the first lens E1 to the imaging surface S17 on the optical axis is 6.82 mm, half of the diagonal length of the effective pixel area on the imaging surface S17 of the optical imaging lens is ImgH=4.80 mm, the maximum half field of view angle Semi-FOV of the optical imaging lens is 53.41°, and the aperture value Fno is 1.95.

[0111] Table 6 shows the high-order coefficients that can be used for each aspherical mirror surface in Example 3, wherein the surface type of each aspherical surface in Example 3 can be defined by the formula (1) given in the above-mentioned Example 1.

[0112] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 9.8447E-02 -4.8437E-02 4.2278E-02 -3.0225E-02 1.5420E-02 -5.3243E-03 1.1819E-03 -1.6115E-04 1.0727E-05 S2 1.5478E-01 -1.2218E-01 2.3920E-01 -3.3464E-01 3.2591E-01 -2.1076E-01 8.8388E-02 -2.2533E-02 2.5807E-03 S3 4.0098E-02 -1.0414E-01 4.0885E-01 -1.0850E+00 1.8119E+00 -1.9211E+00 1.2427E+00 -4.4858E-01 6.9423E-02 S4 -6.5022E-03 -5.0937E-02 2.1934E-01 -7.3173E-01 1.4869E+00 -1.9184E+00 1.5336E+00 -6.9070E-01 1.3369E-01 S5 -3.8080E-02 2.5807E-02 -2.5039E-01 7.7138E-01 -1.4107E+00 1.4276E+00 -7.4014E-01 1.4615E-01 8.0230E-04 S6 3.8583E-02 -7.5471E-01 2.6596E+00 -6.1240E+00 9.1105E+00 -8.7303E+00 5.1873E+00 -1.7317E+00 2.4633E-01 S7 4.1061E-02 -7.1273E-01 2.2319E+00 -4.7903E+00 6.7725E+00 -6.2766E+00 3.6672E+00 -1.2248E+00 1.7875E-01 S8 -9.3729E-03 -1.4976E-01 3.8106E-01 -6.7374E-01 7.6771E-01 -5.6430E-01 2.5798E-01 -6.6708E-02 7.4922E-03 S9 -1.2925E-01 7.2018E-02 -3.1054E-02 -1.5467E-02 3.6170E-02 -2.5221E-02 8.9756E-03 -1.6581E-03 1.2616E-04 S10 -1.4157E-01 1.1302E-01 -9.9658E-02 6.3854E-02 -2.8636E-02 9.0193E-03 -1.8872E-03 2.3054E-04 -1.2270E-05 S11 -6.3715E-02 8.4587E-02 -8.9665E-02 7.0914E-02 -3.8650E-02 1.3440E-02 -2.7962E-03 3.1605E-04 -1.4935E-05 S12 9.3781E-02 -5.6721E-02 3.1658E-02 -1.6228E-02 7.5387E-03 -2.2521E-03 3.7551E-04 -3.1704E-05 1.0428E-06 S13 4.2840E-02 -6.3533E-02 2.9701E-02 -7.8162E-03 1.3014E-03 -1.3860E-04 9.1031E-06 -3.3459E-07 5.2539E-09 S14 -1.0489E-01 2.6828E-02 -5.6025E-03 8.5140E-04 -8.7292E-05 5.6025E-06 -2.0147E-07 3.1257E-09 -2.5246E-12

[0113] Table 6

[0114] Fig. 6A The axial chromatic aberration curve of the optical imaging lens of Example 3 is shown, which indicates that light of different wavelengths deviates from the focal point behind the lens. Figure 6BThe astigmatism curve of the optical imaging lens of Example 3 is shown, which represents the meridional image curvature and the sagittal image curvature. Figure 6C The distortion curve of the optical imaging lens of Example 3 is shown, which represents the distortion magnitude values ​​corresponding to different image heights. Fig.6D The magnification chromatic aberration curve of the optical imaging lens of Example 3 is shown, which represents the deviation of different image heights on the imaging surface after the light passes through the lens. FIG. 6A to FIG. 6D It can be seen that the optical imaging lens provided in Example 3 can achieve good imaging quality.

[0115] Example 4

[0116] The following reference Figures 7 to 8D An optical imaging lens according to Embodiment 4 of the present application is described. Figure 7 A schematic structural diagram of an optical imaging lens according to Embodiment 4 of the present application is shown.

[0117] like Figure 7 As shown, the optical imaging lens includes, in order from the object side to the image side along the optical axis: a first lens E1, a second lens E2, an aperture STO, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, a filter E8 and an imaging surface S17.

[0118] The first lens E1 has negative power, and its object side surface S1 is concave, and its image side surface S2 is concave. The second lens E2 has positive power, and its object side surface S3 is convex, and its image side surface S4 is concave. The third lens E3 has positive power, and its object side surface S5 is concave, and its image side surface S6 is convex. The fourth lens E4 has negative power, and its object side surface S7 is concave, and its image side surface S8 is concave. The fifth lens E5 has negative power, and its object side surface S9 is convex, and its image side surface S10 is concave. The sixth lens E6 has positive power, and its object side surface S11 is convex, and its image side surface S12 is convex. The seventh lens E7 has negative power, and its object side surface S13 is concave, and its image side surface S14 is concave. The filter E8 has an object side surface S15 and an image side surface S16. The light from the object passes through each surface S1 to S16 in sequence and is finally imaged on the imaging surface S17.

[0119] Table 7 shows a basic parameter table of the imaging lens of Example 4, wherein the units of the curvature radius, thickness / distance and focal length are all millimeters (mm).

[0120]

[0121] Table 7

[0122] The effective focal length of the optical imaging lens is f=3.56 mm, the distance from the object side surface S1 of the first lens E1 to the imaging surface S17 on the optical axis is TTL=6.94 mm, half of the diagonal length of the effective pixel area on the imaging surface S17 is ImgH=4.80 mm, the maximum half field of view angle Semi-FOV of the optical imaging lens is Semi-FOV=53.46°, and the aperture value Fno=1.96.

[0123] Table 8 shows the high-order coefficients that can be used for each aspherical mirror surface in Example 4, wherein the surface type of each aspherical surface in Example 4 can be defined by the formula (1) given in the above-mentioned Example 1.

[0124]

[0125]

[0126] Table 8

[0127] Fig. 8A The axial chromatic aberration curve of the optical imaging lens of Example 4 is shown, which indicates the deviation of light of different wavelengths from the focal point behind the lens. Figure 8B The astigmatism curve of the optical imaging lens of Example 4 is shown, which represents the meridional image curvature and the sagittal image curvature. Figure 8C The distortion curve of the optical imaging lens of Example 4 is shown, which represents the distortion magnitude values ​​corresponding to different image heights. Fig.8D The magnification chromatic aberration curve of the optical imaging lens of Example 4 is shown, which represents the deviation of different image heights on the imaging surface after the light passes through the lens. FIG. 8A to FIG. 8D It can be seen that the optical imaging lens provided in Example 4 can achieve good imaging quality.

[0128] Example 5

[0129] The following reference Figures 9 to 10D An optical imaging lens according to Embodiment 5 of the present application is described. Fig. 9 A schematic structural diagram of an optical imaging lens according to Embodiment 5 of the present application is shown.

[0130] like Fig. 9 As shown, the optical imaging lens includes, in order from the object side to the image side along the optical axis: a first lens E1, a second lens E2, an aperture STO, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, a filter E8 and an imaging surface S17.

[0131] The first lens E1 has negative power, and its object side surface S1 is concave, and its image side surface S2 is concave. The second lens E2 has positive power, and its object side surface S3 is convex, and its image side surface S4 is concave. The third lens E3 has positive power, and its object side surface S5 is concave, and its image side surface S6 is convex. The fourth lens E4 has negative power, and its object side surface S7 is concave, and its image side surface S8 is concave. The fifth lens E5 has positive power, and its object side surface S9 is convex, and its image side surface S10 is concave. The sixth lens E6 has positive power, and its object side surface S11 is concave, and its image side surface S12 is convex. The seventh lens E7 has negative power, and its object side surface S13 is concave, and its image side surface S14 is concave. The filter E8 has an object side surface S15 and an image side surface S16. The light from the object passes through each surface S1 to S16 in sequence and is finally imaged on the imaging surface S17.

[0132] Table 9 shows a basic parameter table of the optical imaging lens of Example 5, wherein the units of the radius of curvature, thickness / distance and focal length are all millimeters (mm).

[0133]

[0134]

[0135] Table 9

[0136] The effective focal length of the optical imaging lens is f=3.51 mm, the distance from the object side surface S1 of the first lens E1 to the imaging surface S17 on the optical axis is TTL=6.93 mm, half of the diagonal length of the effective pixel area on the imaging surface S17 is ImgH=4.80 mm, the maximum half field of view angle Semi-FOV of the optical imaging lens is Semi-FOV=53.82°, and the aperture value Fno=1.88.

[0137] Table 10 shows the high-order coefficients that can be used for each aspherical mirror surface in Example 5, wherein the surface type of each aspherical surface in Example 5 can be defined by the formula (1) given in the above-mentioned Example 1.

[0138] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 1.1727E-01 -6.4281E-02 4.4194E-02 -2.5232E-02 1.0343E-02 -2.8448E-03 4.7819E-04 -4.3488E-05 1.6185E-06 S2 1.5493E-01 -8.3308E-02 8.2657E-02 -5.4490E-02 1.8015E-02 2.7181E-03 -4.2593E-03 1.0028E-03 -4.4097E-05 S3 2.6119E-02 -5.5197E-02 1.8544E-01 -4.0334E-01 5.4557E-01 -4.6599E-01 2.4111E-01 -6.9836E-02 8.8148E-03 S4 -9.5298E-03 -3.3281E-02 1.4627E-01 -4.3594E-01 7.9869E-01 -9.3897E-01 6.8546E-01 -2.8121E-01 4.9333E-02 S5 -4.2942E-02 4.1584E-02 -3.5856E-01 1.2006E+00 -2.4629E+00 3.1057E+00 -2.3926E+00 1.0416E+00 -1.9942E-01 S6 5.0161E-02 -7.3074E-01 2.2640E+00 -4.7266E+00 6.5004E+00 -5.8042E+00 3.2194E+00 -1.0013E+00 1.3192E-01 S7 3.6370E-02 -5.5734E-01 1.4999E+00 -2.8940E+00 3.7275E+00 -3.1605E+00 1.6835E+00 -5.0696E-01 6.5666E-02 S8 -4.8753E-02 3.2337E-03 2.5463E-02 -1.2171E-01 1.9305E-01 -1.6985E-01 8.6888E-02 -2.4173E-02 2.8692E-03 S9 -1.5536E-01 1.2212E-01 -9.8940E-02 3.0766E-02 2.7167E-02 -3.2783E-02 1.4500E-02 -3.0929E-03 2.6381E-04 S10 -1.3874E-01 1.2941E-01 -1.3206E-01 9.1643E-02 -4.2377E-02 1.3316E-02 -2.7470E-03 3.3217E-04 -1.7652E-05 S11 -7.2739E-02 1.0629E-01 -1.1617E-01 9.5883E-02 -5.5342E-02 2.0387E-02 -4.4771E-03 5.3227E-04 -2.6380E-05 S12 8.7444E-02 -4.7290E-02 2.3223E-02 -1.0894E-02 5.8387E-03 -2.0809E-03 4.0667E-04 -4.0287E-05 1.5922E-06 S13 2.9972E-02 -5.0023E-02 2.1998E-02 -5.2106E-03 7.7544E-04 -7.4619E-05 4.4991E-06 -1.5416E-07 2.2865E-09 S14 -1.0743E-01 2.9911E-02 -7.0710E-03 1.2149E-03 -1.4127E-04 1.0608E-05 -4.8524E-07 1.2104E-08 -1.2377E-10

[0139] Table 10

[0140] Fig. 10A The axial chromatic aberration curve of the optical imaging lens of Example 5 is shown, which indicates the deviation of light of different wavelengths from the focal point behind the lens. Fig. 10B The astigmatism curve of the optical imaging lens of Example 5 is shown, which represents the meridional image curvature and the sagittal image curvature. Fig. 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. Fig. 10DThe magnification chromatic aberration curve of the optical imaging lens of Example 5 is shown, which represents the deviation of different image heights on the imaging surface after the light passes through the lens. FIG. 10A to FIG. 10D It can be seen that the optical imaging lens provided in Example 5 can achieve good imaging quality.

[0141] Example 6

[0142] The following reference Figures 11 to 12D An optical imaging lens according to Embodiment 6 of the present application is described. Fig.11 A schematic structural diagram of an optical imaging lens according to Example 6 of the present application is shown.

[0143] like Fig.11 As shown, the optical imaging lens includes, in order from the object side to the image side along the optical axis: a first lens E1, a second lens E2, an aperture STO, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, a filter E8 and an imaging surface S17.

[0144] The first lens E1 has positive power, and its object side surface S1 is concave, and its image side surface S2 is convex. The second lens E2 has positive power, and its object side surface S3 is convex, and its image side surface S4 is concave. The third lens E3 has positive power, and its object side surface S5 is concave, and its image side surface S6 is convex. The fourth lens E4 has negative power, and its object side surface S7 is concave, and its image side surface S8 is concave. The fifth lens E5 has positive power, and its object side surface S9 is convex, and its image side surface S10 is concave. The sixth lens E6 has positive power, and its object side surface S11 is concave, and its image side surface S12 is convex. The seventh lens E7 has negative power, and its object side surface S13 is convex, and its image side surface S14 is concave. The filter E8 has an object side surface S15 and an image side surface S16. The light from the object passes through each surface S1 to S16 in sequence and is finally imaged on the imaging surface S17.

[0145] Table 11 shows a basic parameter table of the optical imaging lens of Example 6, wherein the units of the radius of curvature, thickness / distance and focal length are all millimeters (mm).

[0146]

[0147] Table 11

[0148] The effective focal length of the optical imaging lens is f=3.48 mm, the distance from the object side surface S1 of the first lens E1 to the imaging surface S17 on the optical axis is TTL=6.77 mm, half of the diagonal length of the effective pixel area on the imaging surface S17 is ImgH=4.75 mm, the maximum half field of view angle Semi-FOV of the optical imaging lens is Semi-FOV=53.97°, and the aperture value Fno=1.85.

[0149] Tables 12-1 and 12-2 show the high-order coefficients that can be used for each aspherical mirror surface in Example 6, wherein the surface type of each aspherical surface in Example 6 can be defined by the formula (1) given in the above-mentioned Example 1.

[0150]

[0151]

[0152] Table 12-1

[0153] Face number A18 A20 A22 A24 S1 -1.6850E-03 1.9486E-04 -9.6110E-06 0.0000E+00 S2 -1.8056E-01 5.0009E-02 -8.8601E-03 9.0731E-04 S3 -2.3339E-02 2.3036E-03 0.0000E+00 0.0000E+00 S4 -3.9478E-02 5.6450E-03 0.0000E+00 0.0000E+00 S5 1.8857E+01 -4.6793E+00 0.0000E+00 0.0000E+00 S6 2.6579E+00 -4.8969E-01 0.0000E+00 0.0000E+00 S7 1.2591E-01 -1.8360E-02 0.0000E+00 0.0000E+00 S8 -9.9184E-03 1.3960E-03 0.0000E+00 0.0000E+00 S9 -3.7628E-03 2.9080E-04 0.0000E+00 0.0000E+00 S10 -3.6636E-04 1.7157E-05 0.0000E+00 0.0000E+00 S11 3.7357E-03 -3.6038E-04 1.4743E-05 0.0000E+00 S12 -3.1308E-04 2.1825E-05 -6.5919E-07 0.0000E+00 S13 -1.8757E-05 9.2257E-07 -2.6311E-08 3.3140E-10 S14 1.0097E-07 -2.3124E-09 2.3196E-11 0.0000E+00

[0154] Table 12-2

[0155] Fig. 12A The axial chromatic aberration curve of the optical imaging lens of Example 6 is shown, which indicates the deviation of light of different wavelengths from the focal point behind the lens. Fig. 12B The astigmatism curve of the optical imaging lens of Example 6 is shown, which represents the meridional image curvature and the sagittal image curvature. Fig. 12C The distortion curve of the optical imaging lens of Example 6 is shown, which represents the distortion magnitude values ​​corresponding to different image heights. Fig.12D The magnification chromatic aberration curve of the optical imaging lens of Example 6 is shown, which represents the deviation of different image heights on the imaging surface after the light passes through the lens. FIG. 12A to FIG. 12D It can be seen that the optical imaging lens provided in Example 6 can achieve good imaging quality.

[0156] In summary, the parameters of the optical imaging lenses in Examples 1 to 6 respectively satisfy the relationships shown in Table 13.

[0157]

[0158] Table 13

[0159] The present application also provides an imaging device, whose electronic photosensitive element can be a photosensitive 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 in a mobile electronic device such as a mobile phone. The imaging device is equipped with the optical imaging lens described above.

[0160] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. 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 a specific combination of the above technical features, but 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 above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. An optical imaging lens, characterized in that: Along the optical axis from the object side to the image side, they include: a first lens having optical power; a second lens having positive optical power and a convex object-side surface; The third lens has positive power, its object side surface is concave and its image side surface is convex; a fourth lens element having negative optical power, whose object-side surface is concave and whose image-side surface is concave; a fifth lens having optical power, wherein the object side surface is convex and the image side surface is concave; a sixth lens element having positive refractive power and a convex image-side surface; and The seventh lens has negative power and its image side is concave. The number of lenses having optical power in the optical imaging lens is seven; The first lens has negative optical power, and the fifth lens has positive optical power or negative optical power, or the first lens has positive optical power, and the fifth lens has positive optical power; The optical imaging lens meets the following requirements: 1.36≤TTL / ImgH≤1.5; and 106.78°≤FOV≤107.94°, 2.06≤f12 / f≤3.08, Wherein, TTL is the distance from the object side of the first lens to the imaging surface of the optical imaging lens along the optical axis, ImgH is half of the diagonal length of the effective pixel area on the imaging surface, FOV is the maximum field of view of the optical imaging lens, f12 is the combined focal length of the first lens and the second lens, and f is the effective focal length of the optical imaging lens.

2. The optical imaging lens according to claim 1, wherein: 1.49≤(R9+R10) / f≤1.86, Wherein, R9 is the curvature radius of the object side surface of the fifth lens, R10 is the curvature radius of the image side surface of the fifth lens, and f is the effective focal length of the optical imaging lens.

3. The optical imaging lens according to claim 1, wherein: 0.70≤R10 / f<1.0, Wherein, R10 is the curvature radius of the image side surface of the fifth lens, and f is the effective focal length of the optical imaging lens.

4. The optical imaging lens according to claim 1, wherein: 3.5<|f4×tan(FOV / 2)| / R9<5.5, Among them, f4 is the effective focal length of the fourth lens, FOV is the maximum field of view angle of the optical imaging lens, and R9 is the curvature radius of the object side of the fifth lens.

5. The optical imaging lens according to claim 1, wherein: 2.11≤(CT4+CT5) / T45≤4.32, Wherein, CT4 is the center thickness of the fourth lens along the optical axis, CT5 is the center thickness of the fifth lens along the optical axis, and T45 is the spacing distance between the fourth lens and the fifth lens along the optical axis.

6. The optical imaging lens according to claim 1, wherein: 3.4≤SAG62 / SAG61≤9.72, Among them, SAG61 is the distance from the intersection of the object side surface of the sixth lens and the optical axis to the vertex of the effective radius of the object side surface of the sixth lens along the optical axis, and SAG62 is the distance from the intersection of the image side surface of the sixth lens and the optical axis to the vertex of the effective radius of the image side surface of the sixth lens along the optical axis.

7. The optical imaging lens according to claim 1, wherein: 3.0≤f2 / f123+f3 / f123≤4.12, Wherein, f2 is the effective focal length of the second lens, f3 is the effective focal length of the third lens, and f123 is the combined focal length of the first lens, the second lens and the third lens.

8. The optical imaging lens according to claim 1, wherein: 0.5≤f2 / f3≤1.5, Wherein, f2 is the effective focal length of the second lens, and f3 is the effective focal length of the third lens.

9. The optical imaging lens according to claim 1, wherein: 1.11≤(CT1+CT2+CT3+CT4+CT5) / (CT6+CT7)≤1.5, Among them, CT1 is the center thickness of the first lens along the optical axis, CT2 is the center thickness of the second lens along the optical axis, CT3 is the center thickness of the third lens along the optical axis, CT4 is the center thickness of the fourth lens along the optical axis, CT5 is the center thickness of the fifth lens along the optical axis, CT6 is the center thickness of the sixth lens along the optical axis, and CT7 is the center thickness of the seventh lens along the optical axis.

10. The optical imaging lens according to claim 1, wherein: -3.72≤(R5+R6) / f3≤-1.24, Among them, R5 is the curvature radius of the object side surface of the third lens, R6 is the curvature radius of the image side surface of the third lens, and f3 is the effective focal length of the third lens.

11. The optical imaging lens according to any one of claims 1 to 10, characterized in that: 1.62≤∑CT / ∑AT≤2.10, Wherein, ∑AT is the sum of the spacing distances between any two adjacent lenses from the first lens to the seventh lens along the optical axis, and ∑CT is the sum of the center distances between the first lens to the seventh lens along the optical axis.

Images