Camera lens

Abstract

The present invention provides a camera lens. The camera lens sequentially includes, from the object side to the image side along the optical axis: a first lens with a positive optical power; a second lens with an optical power; a third lens with an optical power; a fourth lens with a positive optical power; and a fifth lens with a negative optical power. Among them, the F-number Fno of the camera lens, the on-axis distance TTL from the object side surface of the first lens to the imaging surface of the camera lens, and half of the diagonal length ImgH of the effective pixel region on the imaging surface satisfy: 2.3 < Fno * (TTL / ImgH) < 3.0; between the Abbe number V of at least one lens among the first lens to the fifth lens and the refractive index N of the lens, it satisfies: V / N < 12. The present invention solves the problem in the prior art that it is difficult to balance miniaturization and high image quality in a camera lens.

Description

Technical Field

[0001] The present invention relates to the technical field of optical imaging devices, and more particularly, to a camera lens. Background Art

[0002] With the popularization of mobile phones, users have higher and higher requirements for mobile phones, and the module technology is also constantly upgraded. Among them, the requirements for the imaging quality of mobile phone camera lenses are becoming increasingly high. In this situation, the number of lenses of camera lenses is increasing, and the price is also rising. For some manufacturers, they not only want to follow the mainstream trend to make large image height, large aperture, and ultra-thin mobile phone lenses, but also pursue higher cost performance. In recent years, the ultra-thinness of mobile phones has been a market trend, but it is difficult to balance the miniaturization and high image quality of existing camera lenses.

[0003] That is to say, there is a problem in the prior art that it is difficult to balance the miniaturization and high image quality of camera lenses. Summary of the Invention

[0004] The main object of the present invention is to provide a camera lens to solve the problem in the prior art that it is difficult to balance the miniaturization and high image quality of camera lenses.

[0005] To achieve the above object, according to one aspect of the present invention, there is provided a camera lens. The camera lens sequentially includes, from the object side to the image side along the optical axis: a first lens with a positive optical power; a second lens with an optical power; a third lens with an optical power; a fourth lens with a positive optical power; a fifth lens with a negative optical power. Among them, the F number Fno of the camera lens, the on-axis distance TTL from the object side surface of the first lens to the imaging surface of the camera lens, and half of the diagonal length ImgH of the effective pixel region on the imaging surface satisfy: 2.3 < Fno * (TTL / ImgH) < 3.0; between the Abbe number V of at least one lens among the first lens to the fifth lens and the refractive index N of the lens, it satisfies: V / N < 12.

[0006] Further, the on-axis distance TTL from the object side surface of the first lens to the imaging surface of the camera lens, half of the diagonal length ImgH of the effective pixel region on the imaging surface, and the effective focal length f of the camera lens satisfy: 2.5 mm < f / (TTL / ImgH) ≤ 4.5 mm.

[0007] Further, the on-axis distance TTL from the object side surface of the first lens to the imaging surface, the entrance pupil diameter EPD of the camera lens, and the maximum field of view FOV of the camera lens satisfy: 2.0 ≤ EPD / (TTL / tan(FOV)) < 9.5.

[0008] Further, between the Abbe number V1 of the first lens and the Abbe number V2 of the second lens, it satisfies: 1.5 < (V1 + V2) / (V1 - V2) < 2.0.

[0009] Further, the Abbe number V1 of the first lens, the Abbe number V4 of the fourth lens, and the Abbe number V5 of the fifth lens satisfy: 55<(V1+V4+V5) / 3<60.

[0010] Furthermore, the effective focal length f4 of the fourth lens, the air interval T34 between the third lens and the fourth lens on the optical axis, and the air interval T45 between the fourth lens and the fifth lens on the optical axis satisfy: 0.2 mm 2 ≤f4*(T34-T45)<1.0mm 2 .

[0011] Further, an air interval T23 between the second lens and the third lens on the optical axis, an air interval T34 between the third lens and the fourth lens on the optical axis, and an air interval T45 between the fourth lens and the fifth lens on the optical axis satisfy: 1.2≤(T23+T45) / T34≤1.8.

[0012] Furthermore, the effective focal length f of the camera lens, the effective focal length f1 of the first lens, and the effective focal length f2 of the second lens satisfy: -3.0≤(f1+f2) / f≤-1.2.

[0013] Furthermore, the effective focal length f of the camera lens, the center thickness CT1 of the first lens and the center thickness CT4 of the fourth lens satisfy: 2.9 <f / (CT1+CT4)<3.4。

[0014] Further, an air interval T12 between the first lens and the second lens on the optical axis, an air interval T23 between the second lens and the third lens on the optical axis, and an air interval T34 between the third lens and the fourth lens on the optical axis satisfy: 0<(T34-T23) / T12≤1.8.

[0015] Further, an air interval T12 between the first lens and the second lens on the optical axis, a center thickness CT1 of the first lens, and a center thickness CT2 of the second lens satisfy: 2.5<(CT1+T12) / CT2≤4.0.

[0016] Furthermore, the air interval T12 between the first lens and the second lens on the optical axis and the sag SAG12 of the image side surface of the first lens at the maximum effective radius satisfy: 0.2 <SAG12 / T12≤0.5。

[0017] Furthermore, the air interval T34 between the third lens and the fourth lens on the optical axis and the sag SAG41 of the object side surface of the fourth lens at the maximum effective radius satisfy: -1.0 <SAG41 / T34<-0.5。

[0018] Further, the sag SAG41 of the object side surface of the fourth lens at the maximum effective radius, the sag SAG42 of the image side surface of the fourth lens at the maximum effective radius and the center thickness CT4 of the fourth lens satisfy: 1.4≤CT4 / (SAG41-SAG42)<3.0.

[0019] Further, a center thickness CT4 of the fourth lens and an edge thickness ET4 of the fourth lens at a maximum effective radius satisfy: 1.5≤CT4 / ET4<3.5.

[0020] Furthermore, the effective focal length f of the camera lens and the effective focal length f4 of the fourth lens satisfy: 0.5 <f / f4<1.5。

[0021] Furthermore, the effective focal length f of the camera lens and the effective focal length f5 of the fifth lens satisfy: -2.0 <f / f5<-0.5。

[0022] Furthermore, an axial distance TTL from the object side surface of the first lens to the imaging surface of the camera lens and half of the diagonal length of the effective pixel area on the imaging surface ImgH satisfy the following relationship: TTL / ImgH<1.5.

[0023] According to another aspect of the present invention, a camera lens is provided, which includes, in sequence from the object side to the image side along the optical axis: a first lens with positive optical power; a second lens with optical power; a third lens with optical power; a fourth lens with positive optical power; and a fifth lens with negative optical power; wherein the sag SAG41 of the object side surface of the fourth lens at the maximum effective radius, the sag SAG42 of the image side surface of the fourth lens at the maximum effective radius and the center thickness CT4 of the fourth lens satisfy the following relationship: 1.4≤CT4 / (SAG41-SAG42)<3.0; and the Abbe number V of at least one lens from the first lens to the fifth lens and the refractive index N of the lens satisfy the following relationship: V / N<12.

[0024] Furthermore, the axial distance TTL from the object side surface of the first lens to the imaging surface, the entrance pupil diameter EPD of the camera lens and the maximum field of view FOV of the camera lens satisfy: 2.0≤EPD / (TTL / tan(FOV))<9.5.

[0025] Furthermore, the Abbe number V1 of the first lens element and the Abbe number V2 of the second lens element satisfy: 1.5<(V1+V2) / (V1-V2)<2.0.

[0026] Further, the Abbe number V1 of the first lens, the Abbe number V4 of the fourth lens, and the Abbe number V5 of the fifth lens satisfy: 55<(V1+V4+V5) / 3<60.

[0027] Furthermore, the effective focal length f4 of the fourth lens, the air interval T34 between the third lens and the fourth lens on the optical axis, and the air interval T45 between the fourth lens and the fifth lens on the optical axis satisfy: 0.2 mm 2 ≤f4*(T34-T45)<1.0mm2.

[0028] Further, an air interval T23 between the second lens and the third lens on the optical axis, an air interval T34 between the third lens and the fourth lens on the optical axis, and an air interval T45 between the fourth lens and the fifth lens on the optical axis satisfy: 1.2≤(T23+T45) / T34≤1.8.

[0029] Furthermore, the effective focal length f of the camera lens, the effective focal length f1 of the first lens, and the effective focal length f2 of the second lens satisfy: -3.0≤(f1+f2) / f≤-1.2.

[0030] Furthermore, the effective focal length f of the camera lens, the center thickness CT1 of the first lens and the center thickness CT4 of the fourth lens satisfy: 2.9 <f / (CT1+CT4)<3.4。

[0031] Further, an air interval T12 between the first lens and the second lens on the optical axis, an air interval T23 between the second lens and the third lens on the optical axis, and an air interval T34 between the third lens and the fourth lens on the optical axis satisfy: 0<(T34-T23) / T12≤1.8.

[0032] Further, an air interval T12 between the first lens and the second lens on the optical axis, a center thickness CT1 of the first lens, and a center thickness CT2 of the second lens satisfy: 2.5<(CT1+T12) / CT2≤4.0.

[0033] Furthermore, the air interval T12 between the first lens and the second lens on the optical axis and the sag SAG12 of the image side surface of the first lens at the maximum effective radius satisfy: 0.2 <SAG12 / T12≤0.5。

[0034] Furthermore, the air interval T34 between the third lens and the fourth lens on the optical axis and the sag SAG41 of the object side surface of the fourth lens at the maximum effective radius satisfy: -1.0 <SAG41 / T34<-0.5。

[0035] Furthermore, the axial distance TTL from the object side of the first lens to the imaging surface of the camera lens, the half of the diagonal length of the effective pixel area on the imaging surface ImgH and the effective focal length f of the camera lens satisfy: 2.5mm <f / (TTL / ImgH)≤4.5mm。

[0036] Furthermore, the following condition is satisfied between the central thickness CT4 of the fourth lens and the edge thickness ET4 of the fourth lens at the maximum effective radius: 1.5 ≤ CT4 / ET4 < 3.5.

[0037] Furthermore, the following condition is satisfied between the effective focal length f of the camera lens and the effective focal length f4 of the fourth lens: 0.5 < f / f4 < 1.5.

[0038] Furthermore, the following condition is satisfied between the effective focal length f of the camera lens and the effective focal length f5 of the fifth lens: -2.0 < f / f5 < -0.5.

[0039] Furthermore, the following condition is satisfied between the on-axis distance TTL from the object side surface of the first lens to the imaging surface of the camera lens and half of the diagonal length ImgH of the effective pixel region on the imaging surface: TTL / ImgH < 1.5.

[0040] Applying the technical solution of the present invention, the camera lens sequentially includes, along the optical axis from the object side to the image side, a first lens with a positive optical power, a second lens with an optical power, a third lens with an optical power, a fourth lens with a positive optical power, and a fifth lens with a negative optical power; wherein, the following conditions are satisfied among the F-number Fno of the camera lens, the on-axis distance TTL from the object side surface of the first lens to the imaging surface of the camera lens, and half of the diagonal length ImgH of the effective pixel region on the imaging surface: 2.3 < Fno*(TTL / ImgH) < 3.0; the following condition is satisfied between the Abbe number V of at least one lens among the first lens to the fifth lens and the refractive index N of the lens: V / N < 12.

[0041] By reasonably designing the optical power of each lens, it is possible to ensure the performance of the camera lens while making the camera lens have the characteristics of high pixels, large aperture, and easy processing, effectively improving the imaging quality of the camera lens. By restricting Fno*(TTL / ImgH) within a reasonable range, it is beneficial for the camera lens to obtain a larger aperture, increase the light input, ensure good imaging quality of the camera lens in a dim environment, and at the same time is beneficial for compressing the total length of the camera lens to make the camera lens more easily miniaturized. By restricting V / N within a reasonable range, when V / N < 12 satisfies the above conditional formula, it is beneficial for the lens to obtain a higher refractive index, so as to better correct the aberration of the optical system and improve the imaging performance under a large aperture. Description of the Drawings

[0042] The specification drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0043] Figure 1 A schematic structural diagram of a camera lens according to Example 1 of the present invention is shown;

[0044] Figures 2 to 4 They are shown respectively Figure 1 The axial chromatic aberration curve, astigmatism curve and distortion curve of the camera lens in;

[0045] Figure 5 A schematic structural diagram of a camera lens according to Example 2 of the present invention is shown;

[0046] Figures 6 to 8 They are shown respectively Figure 5 The axial chromatic aberration curve, astigmatism curve and distortion curve of the camera lens in;

[0047] Fig. 9 A schematic structural diagram of a camera lens according to Example 3 of the present invention is shown;

[0048] Figures 10 to 12 They are shown respectively Fig. 9 The axial chromatic aberration curve, astigmatism curve and distortion curve of the camera lens in;

[0049] Fig.13 A schematic structural diagram of a camera lens according to Example 4 of the present invention is shown;

[0050] Figures 14 to 16 They are shown respectively Fig.13 The axial chromatic aberration curve, astigmatism curve and distortion curve of the camera lens in;

[0051] Fig.17 A schematic structural diagram of a camera lens according to Example 5 of the present invention is shown;

[0052] Figures 18 to 20 They are shown respectively Fig.17 The axial chromatic aberration curve, astigmatism curve and distortion curve of the camera lens in;

[0053] Fig.21 A schematic structural diagram of a camera lens according to Example 6 of the present invention is shown;

[0054] Figure 22 to Figure 24 They are shown respectively Fig.21 The axial chromatic aberration curve, astigmatism curve and distortion curve of the camera lens in;

[0055] Fig.25 A schematic structural diagram of a camera lens according to Example 7 of the present invention is shown;

[0056] Figure 26 to Figure 28 They are shown respectively Fig.25 The on-axis chromatic aberration curve, astigmatism curve and distortion curve of the camera lens in.

[0057] The above drawings include the following reference numerals:

[0058] STO, aperture; E1, first lens; S1, object-side surface of the first lens; S2, image-side surface of the first lens; E2, second lens; S3, object-side surface of the second lens; S4, image-side surface of the second lens; E3, third lens; S5, object-side surface of the third lens; S6, image-side surface of the third lens; E4, fourth lens; S7, object-side surface of the fourth lens; S8, image-side surface of the fourth lens; E5, fifth lens; S9, object-side surface of the fifth lens; S10, image-side surface of the fifth lens; E6, filter; S11, object-side surface of the filter; S12, image-side surface of the filter; S13, imaging surface. DETAILED DESCRIPTION

[0059] 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 invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0060] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0061] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directional words are not used to limit the present invention.

[0062] 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.

[0063] In the drawings, the thickness, size and shape of the lenses have been slightly exaggerated for ease of illustration. 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 for illustration only and are not drawn strictly to scale.

[0064] In this text, 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 closer to the object side is the object side surface of the lens, and the surface of each lens closer to the image side is called the image side surface of the lens. The judgment of the surface shape in the paraxial region can be based on the judgment method of those with ordinary knowledge in the field, and the concavity and convexity are judged by the positive and negative values of the R value (R refers to the radius of curvature in the paraxial region, usually the R value on the lens database (lens data) in optical software). For the object side surface, when the R value is positive, it is judged to be convex, and when the R value is negative, it is judged to be concave; for the image side surface, when the R value is positive, it is judged to be concave, and when the R value is negative, it is judged to be convex.

[0065] In order to solve the problem that it is difficult to balance miniaturization and high image quality in existing camera lenses, the present invention provides a camera lens.

[0066] In recent years, the ultra-thinning of mobile phones has been a market trend, and module technology has been continuously upgraded. Among them, the requirements for the imaging quality of mobile phone lenses have become increasingly high. In this situation, the number of lenses in mobile phone lenses is increasing, and the price is also rising. For some manufacturers, they not only want to follow the mainstream trend to make large image height, large aperture, and ultra-thin mobile phone lenses, but also pursue higher cost performance. Therefore, the present invention proposes a five-piece optical imaging system with good imaging quality, which has the characteristics of ultra-thin and large aperture and is suitable for portable electronic products. This application is the best choice. This application is a 5-piece ultra-thin large aperture rear camera lens with a large imaging surface, has extremely high cost performance, can provide a large aperture, so that it still has good imaging quality even in a dim environment, and becomes an alternative to 6-piece and 7-piece lenses.

[0067] Embodiment 1

[0068] As Figures 1 to 28 shown, the camera lens sequentially includes, from the object side to the image side along the optical axis: a first lens with positive optical power, a second lens with optical power, a third lens with optical power, a fourth lens with positive optical power, and a fifth lens with negative optical power; wherein, the F number Fno of the camera lens, the on-axis distance TTL from the object side surface of the first lens to the imaging surface of the camera lens, and half of the diagonal length ImgH of the effective pixel region on the imaging surface satisfy: 2.3 < Fno * (TTL / ImgH) < 3.0; between the Abbe number V of at least one lens among the first lens to the fifth lens and the refractive index N of the lens, it satisfies: V / N < 12.

[0069] By reasonably designing the optical power of each lens, while ensuring the performance of the camera lens, the camera lens has the characteristics of high pixels, large aperture, and easy processing, effectively improving the imaging quality of the camera lens. By restricting Fno*(TTL / ImgH) within a reasonable range, it is beneficial for the camera lens to obtain a larger aperture, increase the light input, ensure good imaging quality of the camera lens in a dim environment, and at the same time is conducive to compressing the total length of the camera lens to make the camera lens more easily miniaturized. By restricting V / N within a reasonable range, when V / N < 12 satisfies the above conditional formula, it is beneficial for the lens to obtain a higher refractive index, so as to better correct the aberration of the optical system and improve the imaging performance at a large aperture.

[0070] Preferably, the F-number Fno of the camera lens, the on-axis distance TTL from the object side of the first lens to the imaging surface of the camera lens, and half of the diagonal length ImgH of the effective pixel region on the imaging surface satisfy: 2.4 < Fno*(TTL / ImgH) < 2.8; the Abbe number V of at least one lens among the first lens to the fifth lens and the refractive index N of the lens satisfy: 8 < V / N < 11.

[0071] In this embodiment, the on-axis distance TTL from the object side of the first lens to the imaging surface of the camera lens, half of the diagonal length ImgH of the effective pixel region on the imaging surface, and the effective focal length f of the camera lens satisfy: 2.5mm < f / (TTL / ImgH) ≤ 4.5mm. By restricting f / (TTL / ImgH) within a certain range, it is beneficial for the camera lens to obtain a larger image height and at the same time is conducive to realizing the ultra-thinness of the camera lens. Preferably, 2.55mm < f / (TTL / ImgH) ≤ 4.48mm.

[0072] In this embodiment, the on-axis distance TTL from the object side of the first lens to the imaging surface, the entrance pupil diameter EPD of the camera lens, and the maximum field of view FOV of the camera lens satisfy: 2.0 ≤ EPD / (TTL / tan(FOV)) < 9.5. By restricting EPD / (TTL / tan(FOV)) within a reasonable range, it is beneficial for the camera lens to obtain a larger same-light aperture and a larger field of view angle, ensuring the imaging quality of the camera lens. Preferably, 2.01 ≤ EPD / (TTL / tan(FOV)) < 9.1.

[0073] In this embodiment, the Abbe number V1 of the first lens and the Abbe number V2 of the second lens satisfy: 1.5 < (V1 + V2) / (V1 - V2) < 2.0. By restricting (V1 + V2) / (V1 - V2) within a reasonable range, the chromatic aberration of the camera lens can be corrected so that the camera lens obtains better imaging quality. Preferably, 1.6 < (V1 + V2) / (V1 - V2) < 1.95.

[0074] In this embodiment, the Abbe number V1 of the first lens, the Abbe number V4 of the fourth lens, and the Abbe number V5 of the fifth lens satisfy: 55 < (V1 + V4 + V5) / 3 < 60. By restricting (V1 + V4 + V5) / 3 within a reasonable range, it is beneficial to correct the spherical aberration and axial chromatic aberration of the camera lens, so as to improve the imaging quality of the camera lens. Preferably, 55.1 < (V1 + V4 + V5) / 3 < 52.

[0075] In this embodiment, the effective focal length f4 of the fourth lens, the air gap T34 between the third lens and the fourth lens on the optical axis, and the air gap T45 between the fourth lens and the fifth lens on the optical axis satisfy: 0.2mm 2 ≤ f4*(T34 - T45) < 1.0mm 2 。By restricting f4*(T34 - T45) within a reasonable range, it is beneficial to correct the on-axis spherical aberration, so as to improve the imaging quality of the camera lens. Preferably, 0.2mm 2 ≤ f4*(T34 - T45) < 0.8mm 2 。

[0076] In this embodiment, the air gap T23 between the second lens and the third lens on the optical axis, the air gap T34 between the third lens and the fourth lens on the optical axis, and the air gap T45 between the fourth lens and the fifth lens on the optical axis satisfy: 1.2 ≤ (T23 + T45) / T34 ≤ 1.8. By restricting (T23 + T45) / T34 within a reasonable range, the sensitivity of the lens intervals of the camera lens to aberration can be effectively reduced, which is beneficial to the assembly of the lenses and increases the assembly yield. Preferably, 1.22 ≤ (T23 + T45) / T34 ≤ 1.77.

[0077] In this embodiment, the effective focal length f of the camera lens, the effective focal length f1 of the first lens, and the effective focal length f2 of the second lens satisfy: -3.0 ≤ (f1 + f2) / f ≤ -1.2. By restricting (f1 + f2) / f within a reasonable range, the field curvature of the camera lens can be controlled within a certain range, ensuring the imaging quality of the camera lens. Preferably, -2.98 ≤ (f1 + f2) / f ≤ -1.21.

[0078] In this embodiment, the effective focal length f of the camera lens, the center thickness CT1 of the first lens, and the center thickness CT4 of the fourth lens satisfy: 2.9 < f / (CT1 + CT4) < 3.4. By restricting f / (CT1 + CT4) within a reasonable range, the center thicknesses of the lenses can be reasonably configured, and while ensuring the processability of the lenses, the field curvature of the camera lens can be effectively corrected. Preferably, 2.95 < f / (CT1 + CT4) < 3.3.

[0079] In this embodiment, the air gap T12 between the first lens and the second lens on the optical axis, the air gap T23 between the second lens and the third lens on the optical axis, and the air gap T34 between the third lens and the fourth lens on the optical axis satisfy: 0 < (T34 - T23) / T12 ≤ 1.8. By limiting (T34 - T23) / T12 within a reasonable range, it is beneficial to the compactness of the structure of the camera lens, and is beneficial to the miniaturization of the camera lens while ensuring the assembly between the lenses. Preferably, 0.2 < (T34 - T23) / T12 ≤ 1.8.

[0080] In this embodiment, the air gap T12 between the first lens and the second lens on the optical axis, the central thickness CT1 of the first lens and the central thickness CT2 of the second lens satisfy: 2.5 < (CT1 + T12) / CT2 ≤ 4.0. By limiting (CT1 + T12) / CT2 within a reasonable range, it is beneficial to the compactness of the structure of the camera lens, and at the same time reduces the sensitivity of the central thickness to field curvature, which is beneficial to improving the assembly yield of the lens. Preferably, 2.6 < (CT1 + T12) / CT2 ≤ 4.0.

[0081] In this embodiment, the air gap T12 between the first lens and the second lens on the optical axis, and the sag SAG12 of the image side of the first lens at the maximum effective radius satisfy: 0.2 < SAG12 / T12 ≤ 0.5. By limiting SAG12 / T12 within a reasonable range, it is beneficial to the smooth transition of the aspherical lens surface, which is beneficial to its forming, so as to meet the requirements of processability and manufacturability, and at the same time is beneficial to reducing the field curvature and peak sensitivity at the air gap position between the first lens and the second lens. Preferably, 0.21 < SAG12 / T12 ≤ 0.5.

[0082] In this embodiment, the air gap T34 between the third lens and the fourth lens on the optical axis, and the sag SAG41 of the object side of the fourth lens at the maximum effective radius satisfy: -1.0 < SAG41 / T34 < -0.5. By limiting SAG41 / T34 within a reasonable range, it is beneficial to the smooth transition of the aspherical lens surface, which is beneficial to its forming, so as to meet the requirements of processability and manufacturability. Preferably, -0.97 < SAG41 / T34 < -0.51.

[0083] In this embodiment, the sag SAG41 of the object side surface of the fourth lens at the maximum effective radius, the sag SAG42 of the image side surface of the fourth lens at the maximum effective radius, and the central thickness CT4 of the fourth lens satisfy: 1.4 ≤ CT4 / (SAG41 - SAG42) < 3.0. By limiting CT4 / (SAG41 - SAG42) within a reasonable range, it is beneficial to control the edge thickness of the lens, which is conducive to its molding, thereby meeting the requirements of processability and manufacturability. Preferably, 1.41 ≤ CT4 / (SAG41 - SAG42) < 2.9.

[0084] In this embodiment, the central thickness CT4 of the fourth lens and the edge thickness ET4 of the fourth lens at the maximum effective radius satisfy: 1.5 ≤ CT4 / ET4 < 3.5. By controlling the ratio of the central thickness to the edge thickness of the fourth lens within a reasonable range, it is beneficial to meet the requirements of processability and manufacturability of the lens. Preferably, 1.52 ≤ CT4 / ET4 < 3.4.

[0085] In this embodiment, the effective focal length f of the camera lens and the effective focal length f4 of the fourth lens satisfy: 0.5 < f / f4 < 1.5. By limiting the ratio of the effective focal length of the camera lens to the effective focal length of the fourth lens within a certain range, the field curvature of the camera lens can be reasonably controlled within a certain range, ensuring the imaging quality of the camera lens. Preferably, 0.55 < f / f4 < 1.47.

[0086] In this embodiment, the effective focal length f of the camera lens and the effective focal length f5 of the fifth lens satisfy: -2.0 < f / f5 < -0.5. By limiting the ratio of the effective focal length of the camera lens to the effective focal length of the fifth lens within a certain range, the field curvature of the camera lens can be reasonably controlled within a certain range, ensuring the imaging quality of the camera lens. Preferably, -1.9 < f / f5 < -0.55.

[0087] In this embodiment, the on-axis distance TTL from the object side surface of the first lens to the imaging surface of the camera lens and half of the diagonal length ImgH of the effective pixel region on the imaging surface satisfy: TTL / ImgH < 1.5. By restricting the ratio of the total length of the camera lens to the half image plane within a certain range, it is convenient for the miniaturization of the camera lens. Preferably, 1.0 < TTL / ImgH < 1.47.

[0088] Embodiment 2

[0089] As Figures 1 to 28As shown, the camera lens includes, from the object side to the image side along the optical axis, a first lens with positive optical power; a second lens with optical power; a third lens with optical power; a fourth lens with positive optical power; and a fifth lens with negative optical power; wherein the sag height SAG41 of the object side surface of the fourth lens at the maximum effective radius, the sag height SAG42 of the image side surface of the fourth lens at the maximum effective radius, and the center thickness CT4 of the fourth lens satisfy: 1.4≤CT4 / (SAG41-SAG42)<3.0. The Abbe number V of at least one lens from the first lens to the fifth lens and the refractive index N of the lens satisfy: V / N<12.

[0090] By rationally designing the focal length of each lens, the camera lens can be guaranteed to have high pixel, large aperture, and easy processing characteristics while ensuring its performance, effectively improving the imaging quality of the camera lens. By limiting CT4 / (SAG41-SAG42) within a reasonable range, it is beneficial to control the edge thickness of the lens and facilitate its molding, thereby meeting the requirements of machinability and processability. By limiting V / N within a reasonable range, when V / N<12 satisfies the above conditional formula, it is beneficial for the lens to obtain a higher refractive index, so as to better correct the aberrations of the optical system and improve the imaging performance under large aperture.

[0091] Preferably, the sag SAG41 of the object side surface of the fourth lens at the maximum effective radius, the sag SAG42 of the image side surface of the fourth lens at the maximum effective radius and the center thickness CT4 of the fourth lens satisfy: 1.41≤CT4 / (SAG41-SAG42)<2.9. The Abbe number V of at least one lens from the first lens to the fifth lens and the refractive index N of the lens satisfy: 8 <V / N<11。

[0092] In this embodiment, the axial distance TTL from the object side of the first lens to the imaging surface, the entrance pupil diameter EPD of the camera lens, and the maximum field of view FOV of the camera lens satisfy: 2.0≤EPD / (TTL / tan(FOV))<9.5. By limiting EPD / (TTL / tan(FOV)) within a reasonable range, it is beneficial for the camera lens to obtain a larger co-optical aperture and a larger field of view angle, thereby ensuring the imaging quality of the camera lens. Preferably, 2.01≤EPD / (TTL / tan(FOV))<9.1.

[0093] In this embodiment, the Abbe number V1 of the first lens and the Abbe number V2 of the second lens satisfy: 1.5<(V1+V2) / (V1-V2)<2.0. By limiting (V1+V2) / (V1-V2) within a reasonable range, the chromatic aberration of the camera lens can be corrected so that the camera lens can obtain better imaging quality. Preferably, 1.6<(V1+V2) / (V1-V2)<1.95.

[0094] In this embodiment, the Abbe number V1 of the first lens, the Abbe number V4 of the fourth lens, and the Abbe number V5 of the fifth lens satisfy: 55 < (V1 + V4 + V5) / 3 < 60. By restricting (V1 + V4 + V5) / 3 within a reasonable range, it is beneficial to correct the spherical aberration and axial chromatic aberration of the camera lens, so as to improve the imaging quality of the camera lens. Preferably, 55.1 < (V1 + V4 + V5) / 3 < 52.

[0095] In this embodiment, the effective focal length f4 of the fourth lens, the air gap T34 between the third lens and the fourth lens on the optical axis, and the air gap T45 between the fourth lens and the fifth lens on the optical axis satisfy: 0.2mm 2 ≤ f4*(T34 - T45) < 1.0mm 2 。 By restricting f4*(T34 - T45) within a reasonable range, it is beneficial to correct the on-axis spherical aberration, so as to improve the imaging quality of the camera lens. Preferably, 0.2mm 2 ≤ f4*(T34 - T45) < 0.8mm 2 。

[0096] In this embodiment, the air gap T23 between the second lens and the third lens on the optical axis, the air gap T34 between the third lens and the fourth lens on the optical axis, and the air gap T45 between the fourth lens and the fifth lens on the optical axis satisfy: 1.2 ≤ (T23 + T45) / T34 ≤ 1.8. By restricting (T23 + T45) / T34 within a reasonable range, the sensitivity of the lens intervals of the camera lens to aberration can be effectively reduced, which is beneficial to the assembly of the lenses and increases the assembly yield. Preferably, 1.22 ≤ (T23 + T45) / T34 ≤ 1.77.

[0097] In this embodiment, the effective focal length f of the camera lens, the effective focal length f1 of the first lens, and the effective focal length f2 of the second lens satisfy: -3.0 ≤ (f1 + f2) / f ≤ -1.2. By restricting (f1 + f2) / f within a reasonable range, the field curvature of the camera lens can be controlled within a certain range, ensuring the imaging quality of the camera lens. Preferably, -2.98 ≤ (f1 + f2) / f ≤ -1.21.

[0098] In this embodiment, the effective focal length f of the camera lens, the central thickness CT1 of the first lens, and the central thickness CT4 of the fourth lens satisfy: 2.9 < f / (CT1 + CT4) < 3.4. By restricting f / (CT1 + CT4) within a reasonable range, the central thicknesses of the lenses can be reasonably configured, and while ensuring the processability of the lenses, the field curvature of the camera lens can be effectively corrected. Preferably, 2.95 < f / (CT1 + CT4) < 3.3.

[0099] In this embodiment, the air gap T12 between the first lens and the second lens on the optical axis, the air gap T23 between the second lens and the third lens on the optical axis, and the air gap T34 between the third lens and the fourth lens on the optical axis satisfy: 0 < (T34 - T23) / T12 ≤ 1.8. By limiting (T34 - T23) / T12 within a reasonable range, it is beneficial to the compactness of the structure of the camera lens, and is conducive to the miniaturization of the camera lens while ensuring the assembly between the lenses. Preferably, 0.2 < (T34 - T23) / T12 ≤ 1.8.

[0100] In this embodiment, the air gap T12 between the first lens and the second lens on the optical axis, the central thickness CT1 of the first lens and the central thickness CT2 of the second lens satisfy: 2.5 < (CT1 + T12) / CT2 ≤ 4.0. By limiting (CT1 + T12) / CT2 within a reasonable range, it is beneficial to the compactness of the structure of the camera lens, and at the same time reduces the sensitivity of the central thickness to field curvature, which is beneficial to improving the assembly yield of the lens. Preferably, 2.6 < (CT1 + T12) / CT2 ≤ 4.0.

[0101] In this embodiment, the air gap T12 between the first lens and the second lens on the optical axis, and the sag SAG12 of the image side of the first lens at the maximum effective radius satisfy: 0.2 < SAG12 / T12 ≤ 0.5. By limiting SAG12 / T12 within a reasonable range, it is beneficial to the smooth transition of the aspherical lens surface, which is conducive to its forming, so as to meet the requirements of processability and manufacturability, and at the same time is beneficial to reducing the field curvature and peak sensitivity at the air gap position between the first lens and the second lens. Preferably, 0.21 < SAG12 / T12 ≤ 0.5.

[0102] In this embodiment, the air gap T34 between the third lens and the fourth lens on the optical axis, and the sag SAG41 of the object side of the fourth lens at the maximum effective radius satisfy: -1.0 < SAG41 / T34 < -0.5. By limiting SAG41 / T34 within a reasonable range, it is beneficial to the smooth transition of the aspherical lens surface, which is conducive to its forming, so as to meet the requirements of processability and manufacturability. Preferably, -0.97 < SAG41 / T34 < -0.51.

[0103] In this embodiment, the on-axis distance TTL from the object side surface of the first lens to the imaging surface of the camera lens, half of the diagonal length ImgH of the effective pixel region on the imaging surface, and the effective focal length f of the camera lens satisfy: 2.5 mm < f / (TTL / ImgH) ≤ 4.5 mm. By restricting f / (TTL / ImgH) within a certain range, it is beneficial for the camera lens to obtain a larger image height and is also beneficial for realizing the ultra-thinning of the camera lens. Preferably, 2.55 mm < f / (TTL / ImgH) ≤ 4.48 mm.

[0104] In this embodiment, the center thickness CT4 of the fourth lens and the edge thickness ET4 of the fourth lens at the maximum effective radius satisfy: 1.5 ≤ CT4 / ET4 < 3.5. By controlling the ratio of the center thickness to the edge thickness of the fourth lens within a reasonable range, it is beneficial to meet the processability and manufacturability requirements of the lens. Preferably, 1.52 ≤ CT4 / ET4 < 3.4.

[0105] In this embodiment, the effective focal length f of the camera lens and the effective focal length f4 of the fourth lens satisfy: 0.5 < f / f4 < 1.5. By limiting the ratio of the effective focal length of the camera lens to the effective focal length of the fourth lens within a certain range, the field curvature of the camera lens can be reasonably controlled within a certain range, ensuring the imaging quality of the camera lens. Preferably, 0.55 < f / f4 < 1.47.

[0106] In this embodiment, the effective focal length f of the camera lens and the effective focal length f5 of the fifth lens satisfy: -2.0 < f / f5 < -0.5. By limiting the ratio of the effective focal length of the camera lens to the effective focal length of the fifth lens within a certain range, the field curvature of the camera lens can be reasonably controlled within a certain range, ensuring the imaging quality of the camera lens. Preferably, -1.9 < f / f5 < -0.55.

[0107] In this embodiment, the on-axis distance TTL from the object side surface of the first lens to the imaging surface of the camera lens and half of the diagonal length ImgH of the effective pixel region on the imaging surface satisfy: TTL / ImgH < 1.5. By restricting the ratio of the total length of the camera lens to the half image plane within a certain range, it is convenient for the miniaturization of the camera lens. Preferably, 1.0 < TTL / ImgH < 1.47.

[0108] Optionally, the above camera lens may further include a filter for correcting color deviation and / or a protective glass for protecting the photosensitive element located on the imaging surface.

[0109] The camera lens in the present application may use multiple lenses, such as the five lenses mentioned above. By reasonably allocating the focal length, surface shape, center thickness of each lens, and axial distance between each lens, etc., the aperture of the camera lens can be effectively increased, the sensitivity of the lens can be reduced, and the processability of the lens can be improved, making the camera lens more conducive to production and processing and applicable to portable electronic devices such as smart phones. The above-mentioned camera lens also has the advantages of large aperture and large field of view. It is ultra-thin and has good imaging quality, which can meet the needs of miniaturization of smart electronic products.

[0110] In the present application, at least one of the mirror surfaces of each lens is an aspherical mirror surface. The characteristic of an aspherical lens is that the curvature changes continuously from the center of the lens to the periphery of the lens. Unlike a spherical lens having a constant curvature from the center of the lens to the periphery of the lens, an aspherical lens has a better curvature radius characteristic, and has the advantages of improving distortion aberration and improving astigmatism aberration. After using an aspherical lens, the aberration occurring during imaging can be eliminated as much as possible, thereby improving the imaging quality.

[0111] 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 camera lens can be changed to obtain the various results and advantages described in this specification. For example, although five lenses are described as an example in the embodiment, the camera lens is not limited to including five lenses. If necessary, the camera lens may also include other numbers of lenses.

[0112] The following further describes examples of specific surface shapes and parameters of the optical lens assembly applicable to the above-mentioned embodiments with reference to the accompanying drawings.

[0113] It should be noted that any one of the following examples 1 to 7 is applicable to all embodiments of the present application.

[0114] Example 1

[0115] like Figures 1 to 4 As shown, the camera lens of Example 1 of the present application is described. Figure 1 A schematic diagram showing the structure of a camera lens of Example 1 is shown.

[0116] like Figure 1 As shown, the camera 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 filter E6 and an imaging surface S13.

[0117] The first lens E1 has positive focal power, the object side surface S1 of the first lens is convex, and the image side surface S2 of the first lens is concave. The second lens E2 has negative focal power, the object side surface S3 of the second lens is convex, and the image side surface S4 of the second lens is concave. The third lens E3 has positive focal power, the object side surface S5 of the third lens is convex, and the image side surface S6 of the third lens is concave. The fourth lens E4 has positive focal power, the object side surface S7 of the fourth lens is concave, and the image side surface S8 of the fourth lens is convex. The fifth lens E5 has negative focal power, the object side surface S9 of the fifth lens is convex, and the image side surface S10 of the fifth lens is concave. The filter E6 has an object side surface S11 of the filter and an image side surface S12 of the filter. The light from the object passes through each surface S1 to S12 in sequence and is finally imaged on the imaging surface S13.

[0118] In this example, the total effective focal length f of the camera lens is 4.18 mm, and the maximum field of view FOV of the camera lens is 82.3°.

[0119] Table 1 shows a basic structural parameter table of the camera lens of Example 1, wherein the units of the curvature radius, thickness / distance, focal length and effective radius are all millimeters (mm).

[0120]

[0121]

[0122] Table 1

[0123] In Example 1, the object side surface and the image side surface of any lens from the first lens E1 to the fifth lens E5 are both aspherical surfaces, and the surface shape of each aspherical lens can be defined by but not limited to the following aspherical surface formula:

[0124]

[0125] 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, A10, A12, A14, A16, A18, A20, A22, A24, A26, A28, A30 that can be used for each aspheric mirror surface S1-S10 in Example 1.

[0126]

[0127]

[0128] Table 2

[0129] Figure 2 The axial chromatic aberration curve of the camera lens of Example 1 is shown, which indicates the deviation of the focusing point of light rays of different wavelengths passing through the camera lens. Figure 3 The astigmatism curve of the imaging lens of Example 1 is shown, which indicates the meridional field curvature and the sagittal field curvature. Figure 4 The distortion curve of the camera lens of Example 1 is shown, which represents the distortion magnitude values ​​corresponding to different field angles.

[0130] according to Figures 2 to 4 It can be seen that the camera lens given in Example 1 can achieve good imaging quality.

[0131] Example 2

[0132] like Figures 5 to 8 As shown, the camera lens of Example 2 of the present application is described. In this example and the following examples, for the sake of brevity, some descriptions similar to Example 1 will be omitted. Figure 5 A schematic diagram of the camera lens structure of Example 2 is shown.

[0133] like Figure 5 As shown, the camera 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 filter E7 and an imaging surface S15.

[0134] The first lens E1 has positive focal power, the object side surface S1 of the first lens is convex, and the image side surface S2 of the first lens is concave. The second lens E2 has negative focal power, the object side surface S3 of the second lens is concave, and the image side surface S4 of the second lens is concave. The third lens E3 has positive focal power, the object side surface S5 of the third lens is convex, and the image side surface S6 of the third lens is convex. The fourth lens E4 has positive focal power, the object side surface S7 of the fourth lens is concave, and the image side surface S8 of the fourth lens is convex. The fifth lens E5 has negative focal power, the object side surface S9 of the fifth lens is convex, and the image side surface S10 of the fifth lens is concave. The filter E6 has an object side surface S11 of the filter and an image side surface S12 of the filter. The light from the object passes through each surface S1 to S12 in sequence and is finally imaged on the imaging surface S13.

[0135] In this example, the total effective focal length f of the camera lens is 4.64 mm, and the maximum field of view FOV of the camera lens is 77.4°.

[0136] Table 3 shows a basic structural parameter table of the camera lens of Example 2, wherein the units of the curvature radius, thickness / distance, focal length and effective radius are all millimeters (mm).

[0137]

[0138]

[0139] Table 3

[0140] Table 4 shows the high-order coefficients of each aspherical mirror surface that can be used in Example 2, wherein each aspherical surface shape can be defined by formula (1) given in Example 1 above.

[0141] Face number A4 A6 A8 A10 A12 A14 A16 S1 -1.8731E-02 3.2476E-01 -3.0133E+00 1.7704E+01 -6.9697E+01 1.9098E+02 -3.7294E+02 S2 -4.1608E-02 1.0513E-02 1.0203E-01 -5.4696E-01 1.7680E+00 -3.7979E+00 5.4244E+00 S3 -5.7854E-02 9.8557E-02 -1.9958E-01 1.3438E+00 -6.1171E+00 1.7482E+01 -3.3161E+01 S4 -2.2185E-02 -2.4962E-03 1.3705E+00 -1.2929E+01 7.5137E+01 -2.8960E+02 7.6468E+02 S5 -9.9526E-02 1.1944E-01 -1.3422E+00 8.6779E+00 -3.7530E+01 1.1172E+02 -2.3394E+02 S6 -7.5010E-02 1.4828E-01 -1.3241E+00 6.4321E+00 -2.0296E+01 4.3474E+01 -6.4925E+01 S7 5.1022E-02 -6.7030E-01 3.0050E+00 -9.3660E+00 2.0356E+01 -3.1552E+01 3.5311E+01 S8 3.1650E-02 -3.9000E-01 1.4242E+00 -3.1610E+00 4.7317E+00 -4.9693E+00 3.7206E+00 S9 -5.4302E-01 4.5356E-01 -9.4386E-02 -2.5229E-01 3.4998E-01 -2.4174E-01 1.0735E-01 S10 -5.8930E-01 6.8330E-01 -6.3612E-01 4.5289E-01 -2.4348E-01 9.8504E-02 -2.9939E-02 Face number A18 A20 A22 A24 A26 A28 A30 S1 5.2550E+02 -5.3524E+02 3.9018E+02 -1.9839E+02 6.6796E+01 -1.3380E+01 1.2068E+00 S2 -5.1124E+00 3.0564E+00 -1.0484E+00 1.5676E-01 0.0000E+00 0.0000E+00 0.0000E+00 S3 4.2509E+01 -3.6436E+01 2.0022E+01 -6.3794E+00 8.9624E-01 0.0000E+00 0.0000E+00 S4 -1.4047E+03 1.7943E+03 -1.5634E+03 8.8623E+02 -2.9469E+02 4.3621E+01 0.0000E+00 S5 3.4636E+02 -3.5908E+02 2.5374E+02 -1.1578E+02 3.0545E+01 -3.5078E+00 0.0000E+00 S6 6.8358E+01 -5.0554E+01 2.5706E+01 -8.5599E+00 1.6809E+00 -1.4758E-01 0.0000E+00 S7 -2.8688E+01 1.6882E+01 -7.1066E+00 2.0819E+00 -4.0247E-01 4.6095E-02 -2.3666E-03 S8 -1.9968E+00 7.6752E-01 -2.0925E-01 3.9497E-02 -4.9089E-03 3.6146E-04 -1.1948E-05 S9 -3.2961E-02 7.1817E-03 -1.1128E-03 1.2028E-04 -8.6436E-06 3.7194E-07 -7.2642E-09 S10 6.8109E-03 -1.1497E-03 1.4159E-04 -1.2337E-05 7.1962E-07 -2.5180E-08 3.9925E-10

[0142] Table 4

[0143] Figure 6 The axial chromatic aberration curve of the camera lens of Example 2 is shown, which indicates the deviation of the focusing point of light of different wavelengths after passing through the camera lens. Figure 7 The astigmatism curve of the imaging lens of Example 2 is shown, which indicates the meridional image curvature and the sagittal image curvature. Figure 8 The distortion curve of the camera lens of Example 2 is shown, which represents the distortion magnitude values ​​corresponding to different field angles.

[0144] according to Figures 6 to 8 It can be seen that the camera lens provided in Example 2 can achieve good imaging quality.

[0145] Example 3

[0146] like Figures 9 to 12 As shown, the camera lens of Example 3 of the present application is described. Fig. 9 A schematic diagram of the camera lens structure of Example 3 is shown.

[0147] like Fig. 9 As shown, the camera 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 filter E7 and an imaging surface S15.

[0148] The first lens E1 has positive focal power, the object side surface S1 of the first lens is convex, and the image side surface S2 of the first lens is concave. The second lens E2 has negative focal power, the object side surface S3 of the second lens is convex, and the image side surface S4 of the second lens is concave. The third lens E3 has negative focal power, the object side surface S5 of the third lens is convex, and the image side surface S6 of the third lens is concave. The fourth lens E4 has positive focal power, the object side surface S7 of the fourth lens is convex, and the image side surface S8 of the fourth lens is convex. The fifth lens E5 has negative focal power, the object side surface S9 of the fifth lens is convex, and the image side surface S10 of the fifth lens is concave. The filter E6 has an object side surface S11 of the filter and an image side surface S12 of the filter. The light from the object passes through each surface S1 to S12 in sequence and is finally imaged on the imaging surface S13.

[0149] In this example, the total effective focal length f of the camera lens is 4.81 mm, and the maximum field of view FOV of the camera lens is 81.3°.

[0150] Table 5 shows a basic structural parameter table of the camera lens of Example 3, wherein the units of the curvature radius, thickness / distance, focal length and effective radius are all millimeters (mm).

[0151] Face number Surface type Radius of curvature thickness Material Cone coefficient OBJ Spherical endless endless Refractive Index Abbe number STO Spherical endless -0.5544 0.0000 S1 Aspheric 1.8335 0.7478 1.546 55.92 0.0092 S2 Aspheric 5.9814 0.2809 0.4416 S3 Aspheric 43.1189 0.3117 1.708 15.4 95.0000 S4 Aspheric 8.2420 0.3485 6.8357 S5 Aspheric 16.0239 0.3842 1.698 16.2 -15.1258 S6 Aspheric 14.1168 0.5978 15.7625 S7 Aspheric 82.3892 0.7453 1.546 55.92 -95.0000 S8 Aspheric -4.2946 0.5698 0.5159 S9 Aspheric 3.2303 0.7387 1.546 55.92 -0.0052 S10 Aspheric 1.3938 0.4665 -1.0102 S11 Spherical endless 0.2205 1.518 64.17 S12 Spherical endless 0.3616 S13 Spherical endless

[0152] Table 5

[0153] Table 6 shows the high-order coefficients that can be used for each aspherical mirror surface in Example 3, wherein each aspherical surface shape can be defined by formula (1) given in the above Example 1.

[0154]

[0155]

[0156] Table 6

[0157] Fig.10 The axial chromatic aberration curve of the camera lens of Example 3 is shown, which indicates the deviation of the focusing point of light of different wavelengths after passing through the camera lens. Fig.11 The astigmatism curve of the imaging lens of Example 3 is shown, which indicates the meridional image curvature and the sagittal image curvature. Fig.12 The distortion curve of the camera lens of Example 3 is shown, which represents the distortion magnitude values ​​corresponding to different field angles.

[0158] according to Figures 10 to 12 It can be seen that the camera lens given in Example 3 can achieve good imaging quality.

[0159] Example 4

[0160] like Figures 13 to 16 As shown, the camera lens of Example 4 of the present application is described. Fig.13 A schematic diagram showing the structure of a camera lens of Example 4 is shown.

[0161] like Fig.13 As shown, the camera 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 filter E7 and an imaging surface S15.

[0162] The first lens E1 has positive focal power, the object side surface S1 of the first lens is convex, and the image side surface S2 of the first lens is concave. The second lens E2 has negative focal power, the object side surface S3 of the second lens is convex, and the image side surface S4 of the second lens is concave. The third lens E3 has negative focal power, the object side surface S5 of the third lens is concave, and the image side surface S6 of the third lens is concave. The fourth lens E4 has positive focal power, the object side surface S7 of the fourth lens is convex, and the image side surface S8 of the fourth lens is convex. The fifth lens E5 has negative focal power, the object side surface S9 of the fifth lens is convex, and the image side surface S10 of the fifth lens is concave. The filter E6 has an object side surface S11 of the filter and an image side surface S12 of the filter. The light from the object passes through each surface S1 to S12 in sequence and is finally imaged on the imaging surface S13.

[0163] In this example, the total effective focal length f of the camera lens is 4.45 mm, and the maximum field of view FOV of the camera lens is 85.7°.

[0164] Table 7 shows a basic structural parameter table of the camera lens of Example 4, wherein the units of the curvature radius, thickness / distance, focal length and effective radius are all millimeters (mm).

[0165]

[0166]

[0167] Table 7

[0168] Table 8 shows the high-order coefficients that can be used for each aspheric mirror surface in Example 4, where each aspheric surface shape can be defined by formula (1) given in the above Example 1.

[0169] Face number A4 A6 A8 A10 A12 A14 A16 S1 -4.2985E-03 7.0534E-02 -4.7486E-01 2.2072E+00 -7.0450E+00 1.5559E+01 -2.3612E+01 S2 -7.3089E-03 5.8961E-03 -1.1164E-02 -3.5227E-02 3.9098E-01 -1.3554E+00 2.5566E+00 S3 -1.9779E-02 2.2202E-01 -1.8110E+00 1.0445E+01 -3.9847E+01 1.0412E+02 -1.8941E+02 S4 3.6867E-03 -1.4712E-01 2.3815E+00 -1.7742E+01 8.4874E+01 -2.7482E+02 6.1989E+02 S5 -4.0856E-02 -5.5264E-01 4.4349E+00 -2.4401E+01 9.5639E+01 -2.7269E+02 5.7293E+02 S6 -2.6320E-02 -4.0966E-01 2.4155E+00 -9.3022E+00 2.4733E+01 -4.6759E+01 6.4069E+01 S7 -1.4406E-02 9.2218E-03 -1.0161E-01 3.1056E-01 -5.6173E-01 6.6065E-01 -5.2950E-01 S8 -8.3249E-02 1.7141E-02 9.6365E-02 -2.2553E-01 2.9627E-01 -2.6805E-01 1.7505E-01 S9 -1.9421E-01 1.9083E-02 5.0998E-02 -5.3491E-02 3.1402E-02 -1.2188E-02 3.2941E-03 S10 -1.3992E-01 3.1385E-02 9.8753E-03 -1.4015E-02 7.2710E-03 -2.3587E-03 5.2745E-04 Face number A18 A20 A22 A24 A26 A28 A30 S1 2.3948E+01 -1.4942E+01 4.0527E+00 1.3454E+00 -1.5532E+00 5.1715E-01 -6.3502E-02 S2 -2.8843E+00 1.9418E+00 -7.2006E-01 1.1316E-01 0.0000E+00 0.0000E+00 0.0000E+00 S3 2.3960E+02 -2.0662E+02 1.1580E+02 -3.8017E+01 5.5461E+00 0.0000E+00 0.0000E+00 S4 -9.8456E+02 1.0955E+03 -8.3417E+02 4.1312E+02 -1.1953E+02 1.5275E+01 0.0000E+00 S5 -8.9125E+02 1.0224E+03 -8.5218E+02 5.0112E+02 -1.9675E+02 4.6217E+01 -4.9057E+00 S6 -6.4214E+01 4.7054E+01 -2.4910E+01 9.2696E+00 -2.2989E+00 3.4095E-01 -2.2864E-02 S7 2.9659E-01 -1.1718E-01 3.2490E-02 -6.1816E-03 7.6807E-04 -5.6094E-05 1.8248E-06 S8 -8.3420E-02 2.8921E-02 -7.1902E-03 1.2449E-03 -1.4214E-04 9.5991E-06 -2.8993E-07 S9 -6.3764E-04 8.9431E-05 -9.0476E-06 6.4510E-07 -3.0801E-08 8.8468E-10 -1.1564E-11 S10 -8.3980E-05 9.5999E-06 -7.8169E-07 4.4202E-08 -1.6473E-09 3.6330E-11 -3.5860E-13

[0170] Table 8

[0171] Fig.14 The axial chromatic aberration curve of the camera lens of Example 4 is shown, which indicates the deviation of the focusing point of light of different wavelengths after passing through the camera lens. Fig.15 The astigmatism curve of the imaging lens of Example 4 is shown, which indicates the meridional field curvature and the sagittal field curvature. Fig.16 The distortion curve of the camera lens of Example 4 is shown, which represents the distortion magnitude values ​​corresponding to different field angles.

[0172] according to Figures 14 to 16 It can be seen that the camera lens given in Example 4 can achieve good imaging quality.

[0173] Example 5

[0174] like Figures 17 to 20As shown, the camera lens of Example 5 of the present application is described. Fig.17 A schematic diagram showing the structure of a camera lens of Example 5 is shown.

[0175] like Fig.17 As shown, the camera 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 filter E7 and an imaging surface S15.

[0176] The first lens E1 has positive focal power, the object side surface S1 of the first lens is convex, and the image side surface S2 of the first lens is concave. The second lens E2 has negative focal power, the object side surface S3 of the second lens is convex, and the image side surface S4 of the second lens is concave. The third lens E3 has positive focal power, the object side surface S5 of the third lens is convex, and the image side surface S6 of the third lens is convex. The fourth lens E4 has positive focal power, the object side surface S7 of the fourth lens is concave, and the image side surface S8 of the fourth lens is convex. The fifth lens E5 has negative focal power, the object side surface S9 of the fifth lens is convex, and the image side surface S10 of the fifth lens is concave. The filter E6 has an object side surface S11 of the filter and an image side surface S12 of the filter. The light from the object passes through each surface S1 to S12 in sequence and is finally imaged on the imaging surface S13.

[0177] In this example, the total effective focal length f of the camera lens is 3.44 mm, and the maximum field of view FOV of the camera lens is 86.4°.

[0178] Table 9 shows a basic structural parameter table of the camera lens of Example 5, wherein the units of the curvature radius, thickness / distance, focal length and effective radius are all millimeters (mm).

[0179]

[0180] Table 9

[0181] Table 10 shows the high-order coefficients that can be used for each aspheric mirror surface in Example 5, where each aspheric surface shape can be defined by formula (1) given in the above Example 1.

[0182]

[0183]

[0184] Table 10

[0185] Fig.18 The axial chromatic aberration curve of the camera lens of Example 5 is shown, which indicates the deviation of the focusing point of light of different wavelengths after passing through the camera lens. Fig.19 The astigmatism curve of the imaging lens of Example 5 is shown, which indicates the meridional field curvature and the sagittal field curvature. Fig. 20 The distortion curve of the camera lens of Example 5 is shown, which represents the distortion magnitude values ​​corresponding to different field angles.

[0186] according to Figures 18 to 20 It can be seen that the camera lens given in Example 5 can achieve good imaging quality.

[0187] Example 6

[0188] like Figure 21 to Figure 24 As shown, the camera lens of Example 6 of the present application is described. Fig.21 A schematic diagram showing the structure of a camera lens of Example 6 is shown.

[0189] like Fig.21 As shown, the camera 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 filter E7 and an imaging surface S15.

[0190] The first lens E1 has positive focal power, the object side surface S1 of the first lens is convex, and the image side surface S2 of the first lens is concave. The second lens E2 has negative focal power, the object side surface S3 of the second lens is convex, and the image side surface S4 of the second lens is concave. The third lens E3 has negative focal power, the object side surface S5 of the third lens is convex, and the image side surface S6 of the third lens is concave. The fourth lens E4 has positive focal power, the object side surface S7 of the fourth lens is convex, and the image side surface S8 of the fourth lens is convex. The fifth lens E5 has negative focal power, the object side surface S9 of the fifth lens is convex, and the image side surface S10 of the fifth lens is concave. The filter E6 has an object side surface S11 of the filter and an image side surface S12 of the filter. The light from the object passes through each surface S1 to S12 in sequence and is finally imaged on the imaging surface S13.

[0191] In this example, the total effective focal length f of the camera lens is 6.22 mm, and the maximum field of view FOV of the camera lens is 80.8°.

[0192] Table 11 shows a basic structural parameter table of the camera lens of Example 6, wherein the units of curvature radius, thickness / distance, focal length and effective radius are all millimeters (mm).

[0193]

[0194] Table 11

[0195] Table 12 shows the high-order coefficients that can be used for each aspheric mirror surface in Example 6, where each aspheric surface shape can be defined by formula (1) given in the above Example 1.

[0196] Face number A4 A6 A8 A10 A12 A14 A16 S1 -1.8814E-02 1.3008E-01 -5.1304E-01 1.3118E+00 -2.2985E+00 2.8556E+00 -2.5656E+00 S2 -4.8709E-03 1.7175E-02 -5.5959E-02 1.1312E-01 -1.4703E-01 1.2653E-01 -7.2725E-02 S3 -1.5835E-03 1.2947E-04 1.0295E-02 -9.2713E-03 -7.8011E-03 3.0543E-02 -3.8766E-02 S4 2.3508E-04 2.8040E-03 7.0613E-02 -3.5256E-01 9.7540E-01 -1.7238E+00 2.0675E+00 S5 -1.2409E-02 -1.6555E-01 8.2581E-01 -2.6131E+00 5.6222E+00 -8.5462E+00 9.3763E+00 S6 -2.8909E-02 2.5141E-02 -8.3643E-02 1.8409E-01 -2.7244E-01 2.7992E-01 -2.0473E-01 S7 8.7854E-04 -4.1482E-02 8.5622E-02 -1.0565E-01 8.5032E-02 -4.7281E-02 1.8736E-02 S8 -4.1422E-02 3.7357E-02 -4.5889E-02 4.8087E-02 -3.5929E-02 1.8707E-02 -6.8723E-03 S9 -1.1075E-01 2.9208E-02 -6.6261E-03 1.5194E-03 -3.9020E-04 1.0058E-04 -2.0452E-05 S10 -1.0350E-01 3.5627E-02 -1.0575E-02 2.4741E-03 -4.4211E-04 5.9710E-05 -6.0813E-06 Face number A18 A20 A22 A24 A26 A28 A30 S1 1.6817E+00 -8.0354E-01 2.7650E-01 -6.6672E-02 1.0682E-02 -1.0208E-03 4.4000E-05 S2 2.7462E-02 -6.4569E-03 8.2119E-04 -3.2095E-05 -2.1888E-06 0.0000E+00 0.0000E+00 S3 2.8247E-02 -1.2827E-02 3.5907E-03 -5.6830E-04 3.8958E-05 0.0000E+00 0.0000E+00 S4 -1.7265E+00 1.0071E+00 -4.0308E-01 1.0561E-01 -1.6324E-02 1.1292E-03 0.0000E+00 S5 -7.4981E+00 4.3689E+00 -1.8333E+00 5.3917E-01 -1.0540E-01 1.2296E-02 -6.4742E-04 S6 1.0811E-01 -4.1354E-02 1.1353E-02 -2.1812E-03 2.7851E-04 -2.1234E-05 7.3166E-07 S7 -5.3752E-03 1.1205E-03 -1.6820E-04 1.7723E-05 -1.2444E-06 5.2294E-08 -9.9491E-10 S8 1.8019E-03 -3.3804E-04 4.4981E-05 -4.1428E-06 2.5106E-07 -9.0055E-09 1.4487E-10 S9 2.9531E-06 -2.9684E-07 2.0663E-08 -9.7902E-10 3.0192E-11 -5.4742E-13 4.4331E-15 S10 4.6645E-07 -2.6806E-08 1.1390E-09 -3.4819E-11 7.2658E-13 -9.2890E-15 5.4973E-17

[0197] Table 12

[0198] Fig. 22 The axial chromatic aberration curve of the camera lens of Example 6 is shown, which indicates the deviation of the focusing point of light of different wavelengths after passing through the camera lens. Fig.23 The astigmatism curve of the imaging lens of Example 6 is shown, which indicates the meridional field curvature and the sagittal field curvature. Fig.24 The distortion curve of the camera lens of Example 6 is shown, which represents the distortion magnitude values ​​corresponding to different field angles.

[0199] according to Figure 22 to Figure 24 It can be seen that the camera lens given in Example 6 can achieve good imaging quality.

[0200] Example 7

[0201] like Figure 25 to Figure 28 As shown, the camera lens of Example 7 of the present application is described. Fig.25 A schematic diagram showing the structure of a camera lens of Example 7 is shown.

[0202] like Fig.25 As shown, the camera 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 filter E7 and an imaging surface S15.

[0203] The first lens E1 has positive focal power, the object side surface S1 of the first lens is convex, and the image side surface S2 of the first lens is concave. The second lens E2 has negative focal power, the object side surface S3 of the second lens is concave, and the image side surface S4 of the second lens is concave. The third lens E3 has negative focal power, the object side surface S5 of the third lens is concave, and the image side surface S6 of the third lens is convex. The fourth lens E4 has positive focal power, the object side surface S7 of the fourth lens is concave, and the image side surface S8 of the fourth lens is convex. The fifth lens E5 has negative focal power, the object side surface S9 of the fifth lens is concave, and the image side surface S10 of the fifth lens is concave. The filter E6 has an object side surface S11 of the filter and an image side surface S12 of the filter. The light from the object passes through each surface S1 to S12 in sequence and is finally imaged on the imaging surface S13.

[0204] In this example, the total effective focal length f of the camera lens is 3.07 mm, and the maximum field of view FOV of the camera lens is 87.6°.

[0205] Table 13 shows a basic structural parameter table of the camera lens of Example 7, wherein the units of the curvature radius, thickness / distance, focal length and effective radius are all millimeters (mm).

[0206]

[0207] Table 13

[0208] Table 14 shows the high-order coefficients that can be used for each aspheric mirror surface in Example 7, where each aspheric surface shape can be defined by formula (1) given in the above Example 1.

[0209] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 -1.7913E-02 1.0302E+00 -1.1891E+01 8.6162E+01 -3.9101E+02 1.1215E+03 -1.9724E+03 1.9421E+03 -8.2207E+02 S2 2.7664E-02 1.9404E-01 -5.9271E+00 6.0354E+01 -3.6670E+02 1.3644E+03 -3.0381E+03 3.6775E+03 -1.8573E+03 S3 -5.0906E-02 1.5509E-02 2.2346E+00 -1.2763E+01 4.9957E+01 -1.3766E+02 2.5508E+02 -3.2295E+02 2.1411E+02 S4 6.9374E-02 -3.3490E-01 1.4066E+01 -1.5276E+02 1.0621E+03 -4.5920E+03 1.2001E+04 -1.7347E+04 1.0680E+04 S5 -3.4214E-01 8.6820E-01 -1.1403E+01 1.0061E+02 -5.6716E+02 2.0148E+03 -4.3709E+03 5.2954E+03 -2.7670E+03 S6 -2.5424E-01 4.2849E-01 -2.1480E+00 8.1503E+00 -2.0173E+01 3.2484E+01 -3.1775E+01 1.6816E+01 -3.6812E+00 S7 -9.3499E-02 5.8366E-02 -6.2326E-02 -6.9440E-03 4.5213E-02 -1.3748E-02 -6.7001E-03 4.0959E-03 -5.7484E-04 S8 -1.2518E-01 6.0207E-02 4.5420E-02 5.2597E-02 -1.3059E-01 8.6643E-02 -2.7576E-02 4.3934E-03 -2.8282E-04 S9 -2.8806E-01 1.7729E-01 1.0967E-01 -1.6308E-01 8.1991E-02 -2.2511E-02 3.5985E-03 -3.1593E-04 1.1826E-05 S10 -1.8752E-01 1.5228E-01 -8.8041E-02 3.4031E-02 -8.6630E-03 1.2626E-03 -6.4037E-05 -5.3181E-06 5.6294E-07

[0210] Table 14

[0211] Fig.26 The axial chromatic aberration curve of the camera lens of Example 7 is shown, which indicates the deviation of the focusing point of light of different wavelengths after passing through the camera lens. Fig. 27 The astigmatism curve of the imaging lens of Example 7 is shown, which indicates the meridional field curvature and the sagittal field curvature. Fig.28 The distortion curve of the camera lens of Example 7 is shown, which represents the distortion magnitude values ​​corresponding to different field angles.

[0212] according to Figure 26 to Figure 28 It can be seen that the camera lens given in Example 7 can achieve good imaging quality.

[0213] In summary, Embodiments 1 to 7 respectively satisfy the relationships shown in Table 15.

[0214] Conditional / Example 1 2 3 4 5 6 7 Fno*(TTL / ImgH) 2.44 2.74 2.54 2.68 2.76 2.51 2.64 V / N 9.02 9.54 9.02 9.54 10.43 9.02 9.54 f / (TTL / ImgH) 3.20 3.21 3.48 3.33 2.64 4.46 2.61 EPD / (TTL / tan(FOV)) 3.36 2.02 2.97 5.33 6.04 2.84 9.03 (V1+V2) / (V1-V2) 1.76 1.82 1.76 1.82 1.92 1.76 1.82 (V1+V4+V5) / 3 55.92 55.92 55.92 55.92 55.92 55.92 55.81 f4*(T34-T45) 0.74 0.58 0.21 0.27 0.38 0.38 0.20 (T23+T45) / T34 1.25 1.42 1.54 1.73 1.35 1.56 1.33 (f1+f2) / f -1.45 -1.23 -2.05 -2.56 -1.34 -2.06 -2.95 f / (CT1+CT4) 3.28 3.07 3.22 3.07 3.15 3.21 2.97 (T34-T23) / T12 1.41 1.34 0.89 0.34 1.79 0.82 1.44 (CT1+T12) / CT2 3.36 3.58 3.30 3.99 2.74 3.22 2.65 SAG12 / T12 0.37 0.30 0.39 0.37 0.22 0.39 0.50 SAG41 / T34 -0.62 -0.91 -0.60 -0.53 -0.84 -0.58 -0.62 CT4 / (SAG41-SAG42) 1.66 2.85 1.50 1.43 2.40 1.46 1.72 CT4 / ET4 2.52 1.54 2.98 3.34 1.72 3.17 2.40 f / f4 0.65 1.16 0.64 0.61 1.05 0.63 1.44 f / f5 -0.99 -1.68 -0.92 -0.62 -1.44 -0.87 -1.87 TTL / ImgH 1.31 1.44 1.39 1.34 1.30 1.39 1.17

[0215] Table 15 and Table 16 show the effective focal length f of the camera lenses of Examples 1 to 7, and the effective focal length f1 to f5 of each lens.

[0216] Example parameters 1 2 3 4 5 6 7 f1(mm) 3.83 3.82 4.56 4.39 3.17 5.96 2.60 f2(mm) -9.89 -9.52 -14.44 -15.81 -7.78 -18.74 -11.64 f3(mm) 43.96 36.65 -185.38 -36.11 20.78 -276.08 -21.15 f4(mm) 6.44 4.01 7.50 7.31 3.27 9.89 2.12 f5(mm) -4.21 -2.77 -5.24 -7.15 -2.39 -7.12 -1.64 f(mm) 4.18 4.64 4.81 4.45 3.44 6.22 3.07 FOV(°) 82.3 77.4 81.3 85.7 86.4 80.8 87.6

[0217] Table 16

[0218] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0219] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0220] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0221] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A camera lens, characterized in that: The camera lens has only five lenses, and the camera lens includes the following lenses in order from the object side to the image side along the optical axis: a first lens having positive refractive power, wherein the object-side surface of the first lens is convex, and the image-side surface of the first lens is concave; a second lens having negative optical power, wherein the image side surface of the second lens is a concave surface; a third lens having optical power; a fourth lens having positive refractive power, wherein the image side surface of the fourth lens is a convex surface; a fifth lens having negative optical power, wherein the image side surface of the fifth lens is a concave surface; The F number Fno of the camera lens, the axial distance TTL from the object side of the first lens to the imaging surface of the camera lens, and half the diagonal length of the effective pixel area on the imaging surface ImgH satisfy the following conditions: 2.44≤ Fno*(TTL / ImgH)≤2.68; The Abbe number V of at least one lens among the first lens to the fifth lens and the refractive index N of the lens satisfy: 9.02≤V / N≤9.54; The air interval T12 between the first lens and the second lens on the optical axis, the air interval T23 between the second lens and the third lens on the optical axis, and the air interval T34 between the third lens and the fourth lens on the optical axis satisfy the following: 0.34≤(T34-T23) / T12≤1.44; The effective focal length f of the camera lens, the effective focal length f1 of the first lens and the effective focal length f2 of the second lens satisfy the following: -2.95≤(f1+f2) / f≤-1.

45.

2. The imaging lens according to claim 1, wherein: The axial distance TTL from the object side of the first lens to the imaging surface of the camera lens, half of the diagonal length of the effective pixel area on the imaging surface ImgH and the effective focal length f of the camera lens satisfy the following: 2.61mm≤f / (TTL / ImgH)≤4.46mm.

3. The imaging lens according to claim 1, wherein: The on-axis distance TTL from the object side surface of the first lens to the imaging surface, the entrance pupil diameter EPD of the camera lens and the maximum field of view FOV of the camera lens satisfy the following: 2.84≤EPD / (TTL / tan(FOV))≤9.

03.

4. The imaging lens according to claim 1, wherein: The Abbe number V1 of the first lens and the Abbe number V2 of the second lens satisfy the following: 1.76≤(V1+V2) / (V1-V2)≤1.

82.

5. The imaging lens according to claim 1, wherein: The Abbe number V1 of the first lens, the Abbe number V4 of the fourth lens, and the Abbe number V5 of the fifth lens satisfy the following: 55.81≤(V1+V4+V5) / 3≤55.

92.

6. The imaging lens according to claim 1, wherein: The effective focal length f4 of the fourth lens, the air interval T34 between the third lens and the fourth lens on the optical axis, and the air interval T45 between the fourth lens and the fifth lens on the optical axis satisfy: 0.20 mm 2 ≤f4*(T34-T45)≤0.74mm 2 .

7. The imaging lens according to claim 1, wherein: An air interval T23 between the second lens and the third lens on the optical axis, an air interval T34 between the third lens and the fourth lens on the optical axis, and an air interval T45 between the fourth lens and the fifth lens on the optical axis satisfy the following: 1.25≤(T23+T45) / T34≤1.

73.

8. The imaging lens according to claim 1, wherein: The effective focal length f of the camera lens, the center thickness CT1 of the first lens, and the center thickness CT4 of the fourth lens satisfy the following: 2.97≤f / (CT1+CT4)≤3.

28.

9. The imaging lens according to claim 1, wherein: An air interval T12 between the first lens and the second lens on the optical axis, a center thickness CT1 of the first lens, and a center thickness CT2 of the second lens satisfy the following: 2.65≤(CT1+T12) / CT2≤3.

99.

10. The imaging lens according to claim 1, wherein: An air interval T12 between the first lens and the second lens on the optical axis and a sag height SAG12 of the image side surface of the first lens at the maximum effective radius satisfy the following: 0.37≤SAG12 / T12≤0.

50.

11. The imaging lens according to claim 1, wherein: The air gap T34 between the third lens and the fourth lens on the optical axis and the sag SAG41 of the object side surface of the fourth lens at the maximum effective radius satisfy: -0.62≤SAG41 / T34≤-0.

53.

12. The imaging lens according to claim 1, wherein: The sag SAG41 of the object side surface of the fourth lens at the maximum effective radius, the sag SAG42 of the image side surface of the fourth lens at the maximum effective radius and the center thickness CT4 of the fourth lens satisfy: 1.43≤CT4 / (SAG41-SAG42)≤1.

72.

13. The imaging lens according to claim 1, wherein: A center thickness CT4 of the fourth lens and an edge thickness ET4 of the fourth lens at a maximum effective radius satisfy the following: 2.40≤CT4 / ET4≤3.

34.

14. The imaging lens according to claim 1, wherein: The effective focal length f of the camera lens and the effective focal length f4 of the fourth lens satisfy the following: 0.61≤f / f4≤1.

44.

15. The imaging lens according to claim 1, wherein: The effective focal length f of the camera lens and the effective focal length f5 of the fifth lens satisfy the following: -1.87≤f / f5≤-0.

62.

16. The imaging lens according to claim 1, wherein: The on-axis distance TTL from the object side surface of the first lens to the imaging surface of the camera lens and half of the diagonal length of the effective pixel area on the imaging surface ImgH satisfy the following: 1.17≤TTL / ImgH≤1.

39.

17. A camera lens, characterized in that: The camera lens has only five lenses, and the camera lens includes the following in order from the object side to the image side along the optical axis: a first lens having positive refractive power, wherein the object-side surface of the first lens is convex, and the image-side surface of the first lens is concave; a second lens having negative optical power, wherein the image side surface of the second lens is a concave surface; a third lens having optical power; a fourth lens having positive refractive power, wherein the image side surface of the fourth lens is a convex surface; a fifth lens having negative optical power, wherein the image side surface of the fifth lens is a concave surface; The sag height SAG41 of the object side surface of the fourth lens at the maximum effective radius, the sag height SAG42 of the image side surface of the fourth lens at the maximum effective radius and the center thickness CT4 of the fourth lens satisfy: 1.43≤ CT4 / (SAG41-SAG42)≤1.72; The Abbe number V of at least one lens among the first lens to the fifth lens and the refractive index N of the lens satisfy: 9.02≤V / N≤9.54; The air interval T12 between the first lens and the second lens on the optical axis, the air interval T23 between the second lens and the third lens on the optical axis, and the air interval T34 between the third lens and the fourth lens on the optical axis satisfy the following: 0.34≤(T34-T23) / T12≤1.44; The effective focal length f of the camera lens, the effective focal length f1 of the first lens and the effective focal length f2 of the second lens satisfy the following: -2.95≤(f1+f2) / f≤-1.

45.

18. The imaging lens according to claim 17, wherein: The on-axis distance TTL from the object side surface of the first lens to the imaging surface, the entrance pupil diameter EPD of the camera lens and the maximum field of view FOV of the camera lens satisfy the following: 2.84≤EPD / (TTL / tan(FOV))≤9.

03.

19. The imaging lens according to claim 17, wherein: The Abbe number V1 of the first lens and the Abbe number V2 of the second lens satisfy the following: 1.76≤(V1+V2) / (V1-V2)≤1.

82.

20. The imaging lens according to claim 17, wherein: The Abbe number V1 of the first lens, the Abbe number V4 of the fourth lens, and the Abbe number V5 of the fifth lens satisfy the following: 55.81≤(V1+V4+V5) / 3≤55.

92.

21. The imaging lens according to claim 17, wherein: The effective focal length f4 of the fourth lens, the air interval T34 between the third lens and the fourth lens on the optical axis, and the air interval T45 between the fourth lens and the fifth lens on the optical axis satisfy: 0.20 mm 2 ≤f4*(T34-T45)≤0.74mm 2 .

22. The imaging lens according to claim 17, wherein: An air interval T23 between the second lens and the third lens on the optical axis, an air interval T34 between the third lens and the fourth lens on the optical axis, and an air interval T45 between the fourth lens and the fifth lens on the optical axis satisfy the following: 1.25≤(T23+T45) / T34≤1.

73.

23. The imaging lens according to claim 17, wherein: The effective focal length f of the camera lens, the center thickness CT1 of the first lens, and the center thickness CT4 of the fourth lens satisfy the following: 2.97≤f / (CT1+CT4)≤3.

28.

24. The imaging lens according to claim 17, wherein: An air interval T12 between the first lens and the second lens on the optical axis, a center thickness CT1 of the first lens, and a center thickness CT2 of the second lens satisfy the following: 2.65≤(CT1+T12) / CT2≤3.

99.

25. The imaging lens according to claim 17, wherein: An air interval T12 between the first lens and the second lens on the optical axis and a sag height SAG12 of the image side surface of the first lens at the maximum effective radius satisfy the following: 0.37≤SAG12 / T12≤0.

50.

26. The imaging lens according to claim 17, wherein: The air gap T34 between the third lens and the fourth lens on the optical axis and the sag SAG41 of the object side surface of the fourth lens at the maximum effective radius satisfy: -0.62≤SAG41 / T34≤-0.

53.

27. The imaging lens according to claim 17, wherein: The axial distance TTL from the object side of the first lens to the imaging surface of the camera lens, half of the diagonal length of the effective pixel area on the imaging surface ImgH and the effective focal length f of the camera lens satisfy the following: 2.61mm≤f / (TTL / ImgH)≤4.46mm.

28. The imaging lens according to claim 17, wherein: A center thickness CT4 of the fourth lens and an edge thickness ET4 of the fourth lens at a maximum effective radius satisfy the following: 2.40≤CT4 / ET4≤3.

34.

29. The imaging lens according to claim 17, wherein: The effective focal length f of the camera lens and the effective focal length f4 of the fourth lens satisfy the following: 0.61≤f / f4≤1.

44.

30. The imaging lens according to claim 17, wherein: The effective focal length f of the camera lens and the effective focal length f5 of the fifth lens satisfy the following: -1.87≤f / f5≤-0.

62.

31. The imaging lens according to claim 17, wherein: The on-axis distance TTL from the object side surface of the first lens to the imaging surface of the camera lens and half of the diagonal length of the effective pixel area on the imaging surface ImgH satisfy the following: 1.17≤TTL / ImgH≤1.39.

Images