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 positive focal power; a second lens with negative focal power; a third lens with focal power; a fourth lens with focal power; a fifth lens with focal power; a sixth lens with positive focal power; and a seventh lens with negative focal power. The total effective focal length f of the optical imaging lens, the distance TTL from the object side of the first lens to the imaging surface of the optical imaging lens on the optical axis, and the half of the diagonal length of the effective pixel area on the imaging surface of the optical imaging lens ImgH satisfy: 9.0mm≤f×(TTL / ImgH)<10mm; and the total effective focal length f of the optical imaging lens, the effective focal length f3 of the third lens, the effective focal length f4 of the fourth lens, and the effective focal length f5 of the fifth lens satisfy: 0.8≤f / |f3|+f / |f4|+f / |f5|≤1.3.

Description

Technical Field

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

[0002] With the popularity of electronic products such as mobile phones and tablet computers, users have higher and higher requirements for the portability, lightness and thinness of mobile phones and tablet computers. At the same time, with the improvement of the performance and reduction of the size of charge-coupled device (CCD) and complementary metal-oxide semiconductor (CMOS) image sensors, the corresponding imaging lenses also need to meet the requirements of high imaging quality.

[0003] At present, in order to obtain better imaging quality, the lenses of electronic products such as mobile phones and tablets mostly use four-piece, five-piece and six-piece lens structures. However, as the pixel size of photosensitive elements continues to decrease and the requirements for imaging performance continue to increase, lens manufacturers have begun to design and manufacture seven-piece and eight-piece lens structures. Summary of the invention

[0004] The present application provides such an optical imaging lens, which includes, in order from the object side to the image side along the optical axis: a first lens with positive optical power; a second lens with negative optical power; a third lens with optical power; a fourth lens with optical power; a fifth lens with optical power; a sixth lens with positive optical power; and a seventh lens with negative optical power. The total effective focal length f of the optical imaging lens, the distance TTL from the object side of the first lens to the imaging plane of the optical imaging lens on the optical axis, and the half of the diagonal length of the effective pixel area on the imaging plane of the optical imaging lens ImgH can satisfy: 9.0mm≤f×(TTL / ImgH)<10mm; and the total effective focal length f of the optical imaging lens, the effective focal length f3 of the third lens, the effective focal length f4 of the fourth lens, and the effective focal length f5 of the fifth lens can satisfy: 0.8≤f / |f3|+f / |f4|+f / |f5|≤1.3.

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

[0006] In one embodiment, the total effective focal length f of the optical imaging lens and the maximum half field of view Semi-FOV of the optical imaging lens may satisfy: 5.0 mm<f×tan(Semi-FOV)<6.0 mm.

[0007] In one embodiment, the Abbe number V4 of the fourth lens and the Abbe number V6 of the sixth lens may satisfy: 0.5<10×|V4-V6| / V6<5.5.

[0008] In one embodiment, the Abbe number V3 of the third lens and the Abbe number V5 of the fifth lens may satisfy: |V3-V5|<20.

[0009] In one embodiment, the effective focal length f2 of the second lens and the effective focal length f6 of the sixth lens may satisfy: -2.5≤f2 / f6<-1.0.

[0010] In one embodiment, the effective focal length f1 of the first lens and the effective focal length f7 of the seventh lens may satisfy: -1.5≤f1 / f7≤-1.0.

[0011] In one embodiment, the effective focal length f6 of the sixth lens and the effective focal length f7 of the seventh lens may satisfy: -2.1≤f6 / f7≤-1.5.

[0012] In one embodiment, a curvature radius R3 of the object-side surface of the second lens and a curvature radius R4 of the image-side surface of the second lens may satisfy: 2<(R3+R4) / (R3-R4)<5.

[0013] In one embodiment, the total effective focal length f of the optical imaging lens and the curvature radius R8 of the image-side surface of the fourth lens element may satisfy: -2.0<f / R8≤-0.5.

[0014] In one embodiment, a curvature radius R9 of the object-side surface of the fifth lens and a curvature radius R10 of the image-side surface of the fifth lens may satisfy: 0<R10 / R9<3.0.

[0015] In one embodiment, the total effective focal length f of the optical imaging lens and the curvature radius R10 of the image-side surface of the fifth lens element may satisfy: 0.5<f / |R10|<2.0.

[0016] In one embodiment, a curvature radius R13 of the object-side surface of the seventh lens and a curvature radius R14 of the image-side surface of the seventh lens may satisfy: 0<R14 / R13<5.0.

[0017] In one embodiment, the sum ΣCT of the center thicknesses of the first to seventh lenses on the optical axis and the sum ΣAT of the spacing distances between any two adjacent lenses of the first to seventh lenses on the optical axis may satisfy: 1.0≤ΣCT / ΣAT<2.0.

[0018] In one embodiment, the distance TTL from the object side surface of the first lens to the imaging plane of the optical imaging lens on the optical axis and half the diagonal length of the effective pixel area on the imaging plane of the optical imaging lens ImgH may satisfy: TTL / ImgH<1.5.

[0019] On the other hand, the present application provides an optical imaging lens, which includes, in order from the object side to the image side along the optical axis: a first lens with positive optical power; a second lens with negative optical power; a third lens with optical power; a fourth lens with optical power; a fifth lens with optical power; a sixth lens with positive optical power; and a seventh lens with negative optical power. The Abbe number V4 of the fourth lens and the Abbe number V6 of the sixth lens can satisfy: 0.5<10×|V4-V6| / V6<5.5; and the total effective focal length f of the optical imaging lens, the effective focal length f3 of the third lens, the effective focal length f4 of the fourth lens, and the effective focal length f5 of the fifth lens can satisfy: 0.8≤f / |f3|+f / |f4|+f / |f5|≤1.3.

[0020] The present application adopts seven lenses, and through the reasonable allocation of the optical focal length, surface shape, center thickness of each lens and axial spacing between each lens, the above-mentioned optical imaging lens has at least one beneficial effect of small aberration, miniaturization, good imaging quality, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0022] Figure 1 A schematic structural diagram of an optical imaging lens according to Embodiment 1 of the present application is shown;

[0023] FIG. 2A to FIG. 2D The axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the optical imaging lens of Example 1 are respectively shown;

[0024] Figure 3 A schematic structural diagram of an optical imaging lens according to Embodiment 2 of the present application is shown;

[0025] 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;

[0026] Figure 5 A schematic structural diagram of an optical imaging lens according to Embodiment 3 of the present application is shown;

[0027] FIG. 6A to FIG. 6DThe axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the optical imaging lens of Example 3 are respectively shown;

[0028] Figure 7 A schematic structural diagram of an optical imaging lens according to Embodiment 4 of the present application is shown;

[0029] 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;

[0030] Fig. 9 shows a schematic structural diagram of an optical imaging lens according to Embodiment 5 of the present application; and

[0031] 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. DETAILED DESCRIPTION

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] The features, principles and other aspects of the present application are described in detail below.

[0040] The optical imaging lens according to the exemplary embodiment of the present application may include seven lenses with optical power, namely, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens. The seven lenses are arranged in sequence from the object side to the image side along the optical axis. Any two adjacent lenses from the first lens to the seventh lens may have a spacing distance between them.

[0041] In an exemplary embodiment, the first lens may have positive optical power; the second lens may have negative optical power; the third lens may have positive optical power or negative optical power; the fourth lens may have positive optical power or negative optical power; the fifth lens may have positive optical power or negative optical power; the sixth lens may have positive optical power; and the seventh lens may have negative optical power.

[0042] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 9.0mm≤f×(TTL / ImgH)<10mm, wherein f is the total effective focal length of the optical imaging lens, TTL is the distance from the object side of the first lens to the imaging plane of the optical imaging lens on the optical axis, and ImgH is half the diagonal length of the effective pixel area on the imaging plane of the optical imaging lens. More specifically, f, TTL and ImgH may further satisfy: 9.0mm≤f×(TTL / ImgH)<9.7mm. Satisfying 9.0mm≤f×(TTL / ImgH)<10mm allows the system to have the characteristics of a large image plane and a small structural size while satisfying the main value parameters.

[0043] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 0.5<10×|V4-V6| / V6<5.5, wherein V4 is the Abbe number of the fourth lens, and V6 is the Abbe number of the sixth lens. More specifically, V4 and V6 may further satisfy: 0.5<10×|V4-V6| / V6<5.2. Satisfying 0.5<10×|V4-V6| / V6<5.5 can better correct the vertical axis chromatic aberration, axial chromatic aberration and spherical aberration of the system, thereby better ensuring the image quality of the system.

[0044] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 5.0mm<f×tan(Semi-FOV)<6.0mm, where f is the total effective focal length of the optical imaging lens, and Semi-FOV is the maximum half field of view angle of the optical imaging lens. More specifically, f and Semi-FOV may further satisfy: 5.2mm<f×tan(Semi-FOV)<5.7mm. Satisfying 5.0mm<f×tan(Semi-FOV)<6.0mm can effectively reduce the size of the system, making the light deflection angle small, which is conducive to achieving a large image surface and easy injection molding.

[0045] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 0.8≤f / |f3|+f / |f4|+f / |f5|≤1.3, where f is the total effective focal length of the optical imaging lens, f3 is the effective focal length of the third lens, f4 is the effective focal length of the fourth lens, and f5 is the effective focal length of the fifth lens. Satisfying 0.8≤f / |f3|+f / |f4|+f / |f5|≤1.3 can make the aberrations generated by the lenses of the system cancel each other, which is conducive to ensuring that the on-axis field of view and the nearby field of view of the system can obtain good imaging quality.

[0046] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: |V3-V5|<20, where V3 is the Abbe number of the third lens, and V5 is the Abbe number of the fifth lens. More specifically, V3 and V5 may further satisfy: |V3-V5|<16. Satisfying |V3-V5|<20 can better correct the vertical axis chromatic aberration, axial chromatic aberration, and spherical aberration of the system, thereby better ensuring the image quality of the system.

[0047] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: -2.5≤f2 / f6<-1.0, wherein f2 is the effective focal length of the second lens, and f6 is the effective focal length of the sixth lens. More specifically, f2 and f6 may further satisfy: -2.5≤f2 / f6<-1.2. Satisfying -2.5≤f2 / f6<-1.0 can constrain the spherical aberration generated by the system within a reasonable range, and can quickly offset and balance the spherical aberration generated by the second lens and the sixth lens, so that the on-axis field of view and the nearby field of view can obtain good imaging quality.

[0048] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: -1.5≤f1 / f7≤-1.0, where f1 is the effective focal length of the first lens and f7 is the effective focal length of the seventh lens. When -1.5≤f1 / f7≤-1.0 is satisfied, the contribution range of the optical power of the first lens and the seventh lens can be reasonably controlled, and the contribution rate of the negative spherical aberration of the first lens and the seventh lens can be reasonably controlled, which is conducive to reasonably balancing the positive optical power generated by the lens.

[0049] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: -2.1≤f6 / f7≤-1.5, where f6 is the effective focal length of the sixth lens, and f7 is the effective focal length of the seventh lens. When -2.1≤f6 / f7≤-1.5 is satisfied, the residual after the positive and negative spherical aberrations generated by the sixth lens and the seventh lens are balanced can be controlled within a small reasonable range, which is beneficial for the front lens to balance the remaining spherical aberration with a smaller burden, thereby making it easier for the optical system to ensure the image quality of the on-axis field of view.

[0050] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 2<(R3+R4) / (R3-R4)<5, wherein R3 is the radius of curvature of the object side surface of the second lens, and R4 is the radius of curvature of the image side surface of the second lens. More specifically, R3 and R4 may further satisfy: 2.4<(R3+R4) / (R3-R4)<4.1. Satisfying 2<(R3+R4) / (R3-R4)<5 can effectively control the contribution of the astigmatism on the object side surface and the image side surface of the second lens, thereby effectively and reasonably controlling the image quality of the intermediate field of view and aperture zone.

[0051] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: -2.0<f / R8≤-0.5, where f is the total effective focal length of the optical imaging lens, and R8 is the radius of curvature of the image side of the fourth lens. More specifically, f and R8 may further satisfy: -1.5<f / R8≤-0.5. Satisfying -2.0<f / R8≤-0.5 can well control the contribution of the fourth lens to the fifth-order spherical aberration of the system, thereby compensating for the third-order spherical aberration generated by the lens, so that the system has good imaging quality on the axis.

[0052] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 0<R10 / R9<3.0, wherein R9 is the radius of curvature of the object side of the fifth lens, and R10 is the radius of curvature of the image side of the fifth lens. More specifically, R10 and R9 may further satisfy: 0.6<R10 / R9<2.4. Satisfying 0<R10 / R9<3.0 can control the coma contribution rate of the fifth lens within a reasonable range, thereby being able to well balance the coma generated by the system components and obtain good imaging quality.

[0053] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 0.5<f / |R10|<2.0, where f is the total effective focal length of the optical imaging lens, and R10 is the radius of curvature of the image side surface of the fifth lens. More specifically, f and R10 may further satisfy: 0.5<f / |R10|<1.5. Satisfying 0.5<f / |R10|<2.0 can effectively correct the amount of astigmatism of the system, thereby ensuring the image quality of the edge field of view.

[0054] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 0<R14 / R13<5.0, wherein R13 is the radius of curvature of the object side surface of the seventh lens, and R14 is the radius of curvature of the image side surface of the seventh lens. More specifically, R14 and R13 may further satisfy: 0<R14 / R13<3.5. Satisfying 0<R14 / R13<5.0 can reasonably control the deflection angle of the light at the edge of the system, and effectively reduce the sensitivity of the system.

[0055] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 1.0≤∑CT / ∑AT<2.0, wherein ∑CT is the sum of the center thicknesses of the first lens to the seventh lens on the optical axis, and ∑AT is the sum of the spacing distances between any two adjacent lenses of the first lens to the seventh lens on the optical axis. More specifically, ∑CT and ∑AT may further satisfy: 1.0≤∑CT / ∑AT<1.9. Satisfying 1.0≤∑CT / ∑AT<2.0 can reasonably control the distortion of the system, so that the system has good distortion performance.

[0056] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: TTL / ImgH<1.5, wherein TTL is the distance from the object side of the first lens to the imaging surface of the optical imaging lens on the optical axis, and ImgH is half the diagonal length of the effective pixel area on the imaging surface of the optical imaging lens. When TTL / ImgH<1.5 is satisfied, the ultra-thin feature of the system can be achieved.

[0057] In an exemplary embodiment, the optical imaging lens according to the present application further includes an aperture provided between the first lens and the second lens or between the object side and the first lens. Optionally, the optical imaging lens may further include a filter for correcting color deviation and / or a protective glass for protecting a photosensitive element located on the imaging surface.

[0058] The optical imaging lens according to the above-mentioned embodiment of the present application may use multiple lenses, such as the seven lenses described above. By reasonably allocating the focal length, surface shape, center thickness of each lens, and axial spacing between each lens, etc., the incident light can be effectively converged, the total optical length of the optical imaging lens can be reduced, and the processability of the optical imaging lens can be improved, so that the optical imaging lens is more conducive to production and processing and can be applied to portable electronic devices. The optical imaging lens with the above-mentioned configuration can have characteristics such as ultra-large image surface, ultra-thin, large aperture, and good imaging quality.

[0059] In the embodiment of the present application, at least one of the mirror surfaces of each lens is an aspherical mirror surface, 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 mirror surface. 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 occurring 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.

[0060] 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.

[0061] Specific embodiments of the optical imaging lens applicable to the above-mentioned embodiments are further described below with reference to the accompanying drawings.

[0062] Example 1

[0063] 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.

[0064] like Figure 1 As shown, the optical imaging lens includes, from the object side to the image side, a first lens E1, an aperture STO, a second lens E2, 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.

[0065] The first lens E1 has positive power, and its object side surface S1 is convex, and its image side surface S2 is concave. The second lens E2 has negative power, and its object side surface S3 is convex, and its image side surface S4 is concave. The third lens E3 has negative power, and its object side surface S5 is concave, and its image side surface S6 is convex. The fourth lens E4 has positive power, and its object side surface S7 is concave, and its image side surface S8 is convex. The fifth lens E5 has negative power, and its object side surface S9 is concave, and its image side surface S10 is convex. 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 convex. 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.

[0066] 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).

[0067]

[0068] Table 1

[0069] In this example, the total effective focal length f of the optical imaging lens is 6.74 mm, the total length TTL of the optical imaging lens (i.e., the distance from the object-side surface S1 of the first lens E1 to the imaging surface S17 of the optical imaging lens on the optical axis) is 7.50 mm, and the maximum field of view FOV of the optical imaging lens is 78.5°.

[0070] 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:

[0071]

[0072] 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. The following Table 2 gives the high-order coefficients A of the aspheric mirror surfaces S1-S14 that can be used in Example 1 4 , A 6 , A 8 , A 10 , A 12 , A 14 , A 16 , A 18 and A 20 .

[0073] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 2.0761E-01 -9.4749E-02 4.3416E-02 -1.5477E-02 4.2923E-03 -6.3381E-04 -2.1216E-04 1.8726E-04 -6.4392E-05 S2 1.0400E-01 -3.6445E-02 1.5937E-02 -4.2819E-03 1.2140E-03 -4.8862E-04 3.0755E-04 -2.1966E-04 8.8925E-05 S3 -1.6897E-01 4.5725E-02 -1.3489E-02 5.4904E-03 -2.3057E-03 9.3088E-04 -3.1960E-04 3.7909E-05 3.7602E-05 S4 -6.4380E-02 1.1923E-02 -2.5967E-03 5.1517E-04 -6.6628E-05 -7.2356E-06 1.6516E-07 1.8019E-05 5.9345E-06 S5 8.3022E-02 -1.2133E-03 3.2020E-03 -2.5725E-03 9.5868E-04 -3.6947E-04 2.2382E-04 -1.1213E-04 3.0959E-05 S6 -8.0385E-02 3.9884E-02 1.3757E-02 -6.2728E-03 -1.8310E-03 1.4586E-03 4.3900E-05 -1.5055E-04 6.8058E-05 S7 -5.4728E-02 4.4179E-02 1.9992E-02 -1.1061E-02 5.1906E-04 2.3753E-04 7.4813E-04 -3.0327E-04 8.9373E-05 S8 4.7482E-04 9.6062E-02 -1.5340E-02 -1.3618E-02 1.6061E-02 -9.9411E-03 4.8351E-03 -1.5771E-03 3.1555E-04 S9 6.8008E-02 2.2651E-01 5.7999E-02 -2.5354E-02 -2.4552E-03 5.4734E-05 1.2139E-02 -6.5705E-03 1.6680E-03 S10 1.3861E-01 3.1299E-01 4.6777E-02 -1.0497E-02 -3.4978E-02 5.0041E-02 -1.9337E-02 4.2972E-03 3.6668E-04 S11 2.4598E-01 4.1655E-01 8.9784E-02 -1.1255E-01 3.7549E-02 1.0882E-02 -2.1234E-02 1.1511E-02 -2.5634E-03 S12 -6.0000E-01 -1.1751E-02 3.5989E-01 2.1226E-03 -2.1916E-02 -4.1099E-02 5.3490E-03 1.3477E-02 -5.6069E-03 S13 -1.8688E+00 -5.7276E-01 1.1865E-01 7.0992E-02 3.3649E-02 8.0532E-04 2.1715E-02 2.0085E-02 2.8098E-03 S14 5.9061E-02 2.1115E-01 -9.6230E-02 -7.9673E-02 1.1798E-01 -1.7274E-02 4.5571E-02 8.0050E-03 6.1170E-03

[0074] Table 2

[0075] 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.

[0076] Example 2

[0077] 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.

[0078] like Figure 3 As shown, the optical imaging lens includes, from the object side to the image side, an aperture STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, a filter E8 and an imaging surface S17.

[0079] The first lens E1 has positive power, and its object side surface S1 is convex, and its image side surface S2 is concave. The second lens E2 has negative 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 convex, 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 convex. The fifth lens E5 has negative power, and its object side surface S9 is concave, and its image side surface S10 is convex. The sixth lens E6 has positive power, and its object side surface S11 is convex, and its image side surface S12 is concave. 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.

[0080] In this example, the total effective focal length f of the optical imaging lens is 6.50 mm, the total length TTL of the optical imaging lens is 7.40 mm, and the maximum field of view FOV of the optical imaging lens is 77.6°.

[0081] 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 in millimeters (mm). Table 4 shows the high-order coefficients of each aspherical mirror surface that can be used in Example 2, wherein the surface type of each aspherical surface can be defined by the formula (1) given in the above Example 1.

[0082]

[0083] Table 3

[0084]

[0085]

[0086] Table 4

[0087] 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.

[0088] Example 3

[0089] 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.

[0090] like Figure 5 As shown, the optical imaging lens includes, from the object side to the image side, a first lens E1, an aperture STO, a second lens E2, 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.

[0091] The first lens E1 has positive power, and its object side surface S1 is convex, and its image side surface S2 is concave. The second lens E2 has negative power, and its object side surface S3 is convex, and its image side surface S4 is concave. The third lens E3 has negative power, and its object side surface S5 is concave, and its image side surface S6 is concave. The fourth lens E4 has positive power, and its object side surface S7 is convex, and its image side surface S8 is convex. 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 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 convex. 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.

[0092] In this example, the total effective focal length f of the optical imaging lens is 6.65 mm, the total length TTL of the optical imaging lens is 8.00 mm, and the maximum field of view FOV of the optical imaging lens is 80.7°.

[0093] 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 in millimeters (mm). Table 6 shows the high-order coefficients of each aspherical mirror surface that can be used in Example 3, wherein the surface type of each aspherical surface can be defined by the formula (1) given in the above Example 1.

[0094]

[0095] Table 5

[0096] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 -4.8450E-02 -1.4674E-02 -3.8353E-03 -7.1654E-04 -6.5855E-05 2.3068E-05 1.8948E-05 8.0098E-06 1.7064E-06 S2 -3.6456E-02 4.1449E-03 -2.6695E-03 6.2395E-04 -1.6097E-04 5.0934E-05 -9.0685E-06 2.7154E-06 -1.1373E-06 S3 -2.0489E-02 1.9234E-02 -4.7983E-05 1.2113E-03 6.6156E-05 8.6209E-05 1.1935E-05 5.0652E-06 -2.9485E-07 S4 -3.0631E-02 2.7296E-03 -9.6331E-04 1.3238E-04 1.9683E-05 3.1142E-05 1.7425E-05 9.4002E-06 3.7683E-06 S5 -9.1044E-02 -2.9892E-03 -1.3621E-04 5.1066E-05 1.5027E-05 1.8067E-05 9.2463E-06 1.9910E-06 2.2285E-06 S6 -1.1294E-01 2.0470E-02 3.9015E-04 1.2147E-03 -2.6477E-04 1.8002E-04 -9.3408E-05 -8.2677E-06 4.3085E-06 S7 -1.0040E-01 2.4167E-02 -7.0310E-04 4.0614E-03 3.0848E-04 4.7643E-04 -2.8356E-04 -6.1154E-06 -1.0887E-05 S8 -3.6087E-01 2.1596E-02 5.3321E-03 8.6244E-03 4.0061E-03 2.5295E-03 9.1522E-04 3.0707E-04 4.5767E-05 S9 -1.0790E+00 8.1918E-02 -1.0352E-03 2.9916E-03 -3.8237E-03 1.6915E-03 7.6587E-04 2.2563E-04 -7.1114E-05 S10 -1.3816E+00 2.6733E-01 -7.3896E-03 -9.0924E-03 -9.8681E-03 4.2683E-03 9.9941E-04 3.2343E-04 -9.1916E-05 S11 -9.0375E-01 3.3276E-02 -9.9147E-03 1.5487E-02 5.2938E-03 1.3302E-03 -3.2631E-03 -1.5685E-03 3.3400E-04 S12 -4.6908E-01 1.6247E-01 -9.4056E-02 2.5129E-02 -6.7177E-03 -3.6275E-05 -3.5124E-03 3.5203E-03 -3.3650E-03 S13 1.4038E-01 3.3445E-01 -1.7800E-01 2.1179E-02 3.5797E-02 -2.3251E-02 3.9370E-06 9.0937E-03 -6.0674E-03 S14 1.6597E+00 -5.9683E-01 3.1799E-01 -1.1397E-01 5.7561E-02 -3.1535E-02 1.0753E-02 -4.0166E-03 3.2865E-03

[0097] Table 6

[0098] Fig. 6AThe axial chromatic aberration curve of the optical imaging lens of Example 3 is shown, which indicates the deviation of light of different wavelengths from the focal point behind the lens. Figure 6B The 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.

[0099] Example 4

[0100] 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.

[0101] like Figure 7 As shown, the optical imaging lens includes, from the object side to the image side, a first lens E1, an aperture STO, a second lens E2, 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.

[0102] The first lens E1 has positive power, and its object side surface S1 is convex, and its image side surface S2 is convex. The second lens E2 has negative power, and its object side surface S3 is convex, and its image side surface S4 is concave. The third lens E3 has negative power, and its object side surface S5 is concave, and its image side surface S6 is concave. The fourth lens E4 has positive power, and its object side surface S7 is convex, and its image side surface S8 is convex. 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 convex. 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.

[0103] In this example, the total effective focal length f of the optical imaging lens is 6.58 mm, the total length TTL of the optical imaging lens is 8.11 mm, and the maximum field of view FOV of the optical imaging lens is 81.5°.

[0104] Table 7 shows the basic parameters of the optical imaging lens of Example 4, wherein the units of the radius of curvature, thickness / distance and focal length are all in millimeters (mm). Table 8 shows the high-order coefficients of each aspherical mirror surface that can be used in Example 4, wherein the surface type of each aspherical surface can be defined by the formula (1) given in the above Example 1.

[0105]

[0106]

[0107] Table 7

[0108] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 -2.1713E-02 -9.8792E-03 -5.8870E-03 -2.8606E-03 -1.2163E-03 -4.7862E-04 -1.7377E-04 -5.3251E-05 -1.1284E-05 S2 2.4287E-02 -1.0671E-03 -5.2940E-03 -6.2074E-04 -1.0721E-03 -2.8195E-04 -2.0302E-04 -4.7443E-05 -1.9219E-05 S3 -2.4814E-02 1.2300E-02 -6.4259E-04 9.0020E-04 -4.4983E-05 4.3759E-05 -1.4810E-05 -7.7522E-07 -2.5492E-06 S4 -3.2792E-02 1.7811E-03 -4.8304E-04 7.2846E-05 8.6833E-07 4.2774E-06 -3.4612E-07 4.0854E-07 7.3776E-07 S5 -9.6223E-02 -3.0180E-04 -5.7086E-05 5.3098E-05 3.5740E-06 8.3644E-07 3.0859E-06 -1.1224E-07 5.1388E-09 S6 -1.2577E-01 1.6412E-02 -8.0659E-05 8.0254E-04 -1.7313E-04 5.9224E-05 -2.5569E-05 -7.4269E-06 -1.2436E-07 S7 -1.0037E-01 1.3740E-02 1.0093E-03 3.9560E-03 4.1381E-04 2.6880E-04 -1.7768E-04 -2.7836E-05 -1.4647E-05 S8 -3.2633E-01 1.2205E-02 5.3750E-03 6.2326E-03 3.4571E-03 1.8722E-03 7.2258E-04 2.4690E-04 4.9338E-05 S9 -1.0375E+00 7.1421E-02 -4.9996E-04 -4.5905E-04 -5.1587E-03 -3.3688E-04 -3.1588E-04 -1.5833E-05 -3.2657E-05 S10 -1.3852E+00 2.6329E-01 -1.4888E-03 -2.0603E-03 -1.0516E-02 1.2702E-03 1.8894E-04 7.7124E-04 1.1413E-04 S11 -8.8760E-01 -4.2933E-03 -1.8842E-02 1.9313E-02 8.6045E-03 3.2962E-03 -6.6123E-04 -8.4231E-04 -3.6115E-04 S12 -4.9431E-01 1.8124E-01 -8.9776E-02 2.6731E-02 -7.0584E-04 -2.4065E-03 -2.1214E-03 2.8290E-03 -1.0816E-03 S13 3.8621E-01 3.4110E-01 -2.4109E-01 6.1074E-02 1.9118E-02 -3.4326E-02 1.3552E-02 4.7867E-03 -9.0131E-03 S14 1.7917E+00 -7.1469E-01 3.1505E-01 -1.1069E-01 6.2177E-02 -3.1811E-02 1.0184E-02 -6.0034E-03 2.3614E-03

[0109] Table 8

[0110] 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.

[0111] Example 5

[0112] 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.

[0113] like Fig. 9 As shown, the optical imaging lens includes, from the object side to the image side, a first lens E1, an aperture STO, a second lens E2, 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.

[0114] The first lens E1 has positive power, and its object side surface S1 is convex, and its image side surface S2 is convex. The second lens E2 has negative power, and its object side surface S3 is convex, and its image side surface S4 is concave. The third lens E3 has negative power, and its object side surface S5 is concave, and its image side surface S6 is convex. The fourth lens E4 has positive power, and its object side surface S7 is convex, and its image side surface S8 is convex. 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 convex. 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.

[0115] In this example, the total effective focal length f of the optical imaging lens is 6.70 mm, the total length TTL of the optical imaging lens is 8.26 mm, and the maximum field of view FOV of the optical imaging lens is 80.4°.

[0116] Table 9 shows the basic parameters of the optical imaging lens of Example 5, wherein the units of the radius of curvature, thickness / distance and focal length are all in millimeters (mm). Table 10 shows the high-order coefficients of each aspherical mirror surface that can be used in Example 5, wherein the surface type of each aspherical surface can be defined by the formula (1) given in the above Example 1.

[0117]

[0118] Table 9

[0119]

[0120]

[0121] Table 10

[0122] 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. 10D The 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.

[0123] In summary, Examples 1 to 5 respectively satisfy the relationships shown in Table 11.

[0124] Conditional / Example 1 2 3 4 5 f×(TTL / ImgH)(mm) 9.01 9.04 9.25 9.28 9.62 10×|V4-V6| / V6 5.03 5.16 0.61 0.84 0.97 f×tan(Semi-FOV)(mm) 5.50 5.23 5.65 5.66 5.66 f / |f3|+f / |f4|+f / f5| 0.91 0.97 1.03 1.25 0.83 |V3-V5| 3.09 1.20 15.72 7.07 3.08 f2 / f6 -1.45 -1.25 -2.44 -1.51 -1.41 f1 / f7 -1.20 -1.00 -1.45 -1.44 -1.45 f6 / f7 -1.81 -1.88 -1.58 -2.05 -1.97 (R3+R4) / (R3-R4) 3.53 3.25 4.02 2.79 2.45 f / R8 -1.43 -0.52 -0.52 -0.81 -0.90 R10 / R9 0.77 2.35 1.15 0.88 0.68 f / |R10| 0.78 0.61 1.35 1.29 1.40 R14 / R13 1.24 0.13 3.23 3.37 3.37 ∑CT / ∑AT 1.02 1.84 1.74 1.68 1.64 TTL / ImgH 1.34 1.39 1.39 1.41 1.44

[0125] Table 11

[0126] 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.

[0127] 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. Optical imaging lens, It is characterized in that Along the optical axis from the object side to the image side, they include: A first lens having positive optical power, whose object side surface is convex; The second lens has a negative optical power, and its object side surface is convex and its image side surface is concave; a third lens having optical power; a fourth lens having optical power and having an image side surface which is convex; a fifth lens having optical power; a sixth lens having positive refractive power; and a seventh lens having negative optical power; Wherein, the number of lenses having optical power in the optical imaging lens is seven; The optical power of the third lens is negative, the optical power of the fourth lens is positive, and the optical power of the fifth lens is negative; or, the optical power of the third lens is positive, the optical power of the fourth lens is negative, and the optical power of the fifth lens is negative; or, the optical power of the third lens is negative, the optical power of the fourth lens is positive, and the optical power of the fifth lens is positive; The total effective focal length f of the optical imaging lens, the distance TTL from the object side of the first lens to the imaging plane of the optical imaging lens on the optical axis, and half of the diagonal length of the effective pixel area on the imaging plane of the optical imaging lens ImgH satisfy: 9.0 mm≤f×(TTL / ImgH)≤9.62 mm; The effective focal length f2 of the second lens and the effective focal length f6 of the sixth lens satisfy: -2.44≤f2 / f6≤-1.25; The effective focal length f6 of the sixth lens and the effective focal length f7 of the seventh lens satisfy: -2.05≤f6 / f7≤-1.58; A curvature radius R13 of the object-side surface of the seventh lens and a curvature radius R14 of the image-side surface of the seventh lens satisfy: 0.13≤R14 / R13≤3.37; and The total effective focal length f of the optical imaging lens, the effective focal length f3 of the third lens, the effective focal length f4 of the fourth lens and the effective focal length f5 of the fifth lens satisfy: 0.83≤f / f3 +f / f4 +f / f5 ≤1.

25.

2. The optical imaging lens according to claim 1, It is characterized in that The total effective focal length f of the optical imaging lens and the maximum half field of view Semi-FOV of the optical imaging lens satisfy: 5.2 mm<f×tan(Semi-FOV)<5.7 mm.

3. The optical imaging lens according to claim 1, It is characterized in that The Abbe number V4 of the fourth lens and the Abbe number V6 of the sixth lens satisfy: 0.61≤10× V4-V6 / V6<5.

2.

4. The optical imaging lens according to claim 1, It is characterized in that The Abbe number V3 of the third lens and the Abbe number V5 of the fifth lens satisfy: 1.20≤ V3-V5 ≤15.

72.

5. The optical imaging lens according to claim 1, It is characterized in that The effective focal length f1 of the first lens and the effective focal length f7 of the seventh lens satisfy: -1.45≤f1 / f7≤-1.

0.

6. The optical imaging lens according to claim 1, It is characterized in that A curvature radius R3 of the object-side surface of the second lens and a curvature radius R4 of the image-side surface of the second lens satisfy: 2.45≤(R3+R4) / (R3-R4)≤4.

02.

7. The optical imaging lens according to claim 1, It is characterized in that The total effective focal length f of the optical imaging lens and the curvature radius R8 of the image side surface of the fourth lens satisfy: -1.43≤f / R8≤-0.

5.

8. The optical imaging lens according to claim 1, It is characterized in that A curvature radius R9 of the object-side surface of the fifth lens and a curvature radius R10 of the image-side surface of the fifth lens satisfy: 0.68≤R10 / R9<2.

4.

9. The optical imaging lens according to claim 1, It is characterized in that The total effective focal length f of the optical imaging lens and the curvature radius R10 of the image side surface of the fifth lens satisfy: 0.61≤f / R10 ≤1.

40.

10. The optical imaging lens according to claim 1, It is characterized in that A sum ΣCT of the center thicknesses of the first lens to the seventh lens on the optical axis and a sum ΣAT of the spacing distances between any two adjacent lenses of the first lens to the seventh lens on the optical axis satisfy: 1.0≤ΣCT / ΣAT≤1.

84.

11. The optical imaging lens according to claim 1, It is characterized in that The distance TTL from the object side surface of the first lens to the imaging surface of the optical imaging lens on the optical axis and half the diagonal length of the effective pixel area on the imaging surface of the optical imaging lens ImgH satisfy: 1.34≤TTL / ImgH≤1.

44.

12. Optical imaging lens, It is characterized in that Along the optical axis from the object side to the image side, they include: A first lens having positive optical power, whose object side surface is convex; The second lens has a negative optical power, and its object side surface is convex and its image side surface is concave; a third lens having optical power; a fourth lens having optical power and having an image side surface which is convex; a fifth lens having optical power; a sixth lens having positive refractive power; and a seventh lens having negative optical power; Wherein, the number of lenses having optical power in the optical imaging lens is seven; The optical power of the third lens is negative, the optical power of the fourth lens is positive, and the optical power of the fifth lens is negative; or, the optical power of the third lens is positive, the optical power of the fourth lens is negative, and the optical power of the fifth lens is negative; or, the optical power of the third lens is negative, the optical power of the fourth lens is positive, and the optical power of the fifth lens is positive; The Abbe number V4 of the fourth lens and the Abbe number V6 of the sixth lens satisfy: 0.61≤10× V4-V6 / V6<5.2; The effective focal length f2 of the second lens and the effective focal length f6 of the sixth lens satisfy: -2.44≤f2 / f6≤-1.25; The effective focal length f6 of the sixth lens and the effective focal length f7 of the seventh lens satisfy: -2.05≤f6 / f7≤-1.58; A curvature radius R13 of the object-side surface of the seventh lens and a curvature radius R14 of the image-side surface of the seventh lens satisfy: 0.13≤R14 / R13≤3.37; and The total effective focal length f of the optical imaging lens, the effective focal length f3 of the third lens, the effective focal length f4 of the fourth lens and the effective focal length f5 of the fifth lens satisfy: 0.83≤f / f3 +f / f4 +f / f5 ≤1.

25.

13. The optical imaging lens according to claim 12, It is characterized in that The total effective focal length f of the optical imaging lens and the maximum half field of view Semi-FOV of the optical imaging lens satisfy: 5.2 mm<f×tan(Semi-FOV)<5.7 mm.

14. The optical imaging lens according to claim 12, It is characterized in that The Abbe number V3 of the third lens and the Abbe number V5 of the fifth lens satisfy: 1.20≤ V3-V5 ≤15.

72.

15. The optical imaging lens according to claim 12, It is characterized in that The effective focal length f1 of the first lens and the effective focal length f7 of the seventh lens satisfy: -1.45≤f1 / f7≤-1.

0.

16. The optical imaging lens according to claim 12, It is characterized in that A curvature radius R3 of the object-side surface of the second lens and a curvature radius R4 of the image-side surface of the second lens satisfy: 2.45≤(R3+R4) / (R3-R4)≤4.

02.

17. The optical imaging lens according to claim 12, It is characterized in that The total effective focal length f of the optical imaging lens and the curvature radius R8 of the image side surface of the fourth lens satisfy: -1.43≤<f / R8≤-0.

5.

18. The optical imaging lens according to claim 12, It is characterized in that A curvature radius R9 of the object-side surface of the fifth lens and a curvature radius R10 of the image-side surface of the fifth lens satisfy: 0.68≤R10 / R9<2.

4.

19. The optical imaging lens according to claim 12, It is characterized in that The total effective focal length f of the optical imaging lens and the curvature radius R10 of the image side surface of the fifth lens satisfy: 0.61≤f / R10 ≤1.

40.

20. The optical imaging lens according to claim 12, It is characterized in that A sum ΣCT of the center thicknesses of the first lens to the seventh lens on the optical axis and a sum ΣAT of the spacing distances between any two adjacent lenses of the first lens to the seventh lens on the optical axis satisfy: 1.0≤ΣCT / ΣAT≤1.

84.

21. The optical imaging lens according to claim 12, It is characterized in that The distance TTL from the object side surface of the first lens to the imaging surface of the optical imaging lens on the optical axis and half the diagonal length of the effective pixel area on the imaging surface of the optical imaging lens ImgH satisfy: 1.34≤TTL / ImgH≤1.44.

Images