Optical imaging lens

Abstract

The present invention discloses an optical imaging lens comprising five lenses, which are, from the object side to the image side, in order: a first lens with negative optical power, whose object side surface is concave and whose image side surface is concave; a second lens with optical power; a third lens with negative optical power; a fourth lens with optical power; and a fifth lens with optical power; wherein the effective focal length f1 of the first lens and half of the maximum field of view (Semi-FOV) of the optical imaging system satisfy the following conditions: the effective focal length f1 of the first lens and half of the maximum field of view (Semi-FOV) of the optical imaging system satisfy the following conditions: 9mm 2 <f1 2 ×tan(Semi‑FOV)<15mm 2 The present invention provides an optical imaging system with wide angle and small optical distortion by controlling relevant parameters of each lens.

Description

Technical Field

[0001] The present invention relates to an optical imaging lens, in particular to an optical imaging lens composed of five lenses. Background Art

[0002] In recent years, with the advancement of technology, portable electronic products have gradually become popular, especially those with camera functions. Major terminal manufacturers have put forward new requirements for lens specifications, which poses a greater challenge to the design of optical systems. The present invention provides an optical imaging system with wide angle and low optical distortion. Summary of the Invention

[0003] Based on the above problems, the present invention proposes an optical lens with five lenses, which is an optical imaging system with wide angle and small optical distortion.

[0004] The present invention discloses an optical imaging lens comprising five lenses, namely, a first lens, a second lens, a third lens, a fourth lens, and a fifth lens, each having optical power, arranged in order from the object side to the image side along the optical axis. The first lens may have negative optical power, and its object-side surface and image-side surface are both concave.

[0005] According to one embodiment of the present invention, the effective focal length f1 of the first lens and half of the maximum field angle Semi-FOV of the optical imaging system satisfy the following relationship: 9mm 2 <f1 2 *tan(Semi-FOV)<15mm 2 .

[0006] According to one embodiment of the present invention, the maximum field of view (FOV) of the optical imaging system satisfies: 110° <FOV<130°。

[0007] According to one embodiment of the present invention, the effective focal length f4 of the fourth lens and the effective focal length f5 of the fifth lens satisfy: |f5 / f4|<3.0.

[0008] According to one embodiment of the present invention, the half of the maximum field angle Semi-FOV of the optical imaging system and the maximum effective radius DT11 of the object side of the first lens satisfy the following conditions: 0.5 <tan(Semi-FOV) / DT11<1.0。

[0009] According to one embodiment of the present invention, the maximum effective radius DT42 of the image-side surface of the fourth lens and the on-axis distance SAG42 between the intersection of the image-side surface of the fourth lens and the optical axis and the vertex of the effective radius of the image-side surface of the fourth lens satisfy:

[0010] -2.5 <DT42 / SAG42<-1.0。

[0011] According to one embodiment of the present invention, the edge thickness ET5 of the fifth lens and the center thickness CT5 of the fifth lens on the optical axis satisfy the following conditions: 1.5 <ET5 / CT5<3.5。

[0012] According to one embodiment of the present invention, the on-axis distance SAG41 between the intersection of the objective side surface of the fourth lens and the optical axis to the effective radius vertex of the objective side surface of the fourth lens and the on-axis distance SAG42 between the intersection of the image side surface of the fourth lens and the optical axis to the effective radius vertex of the image side surface of the fourth lens satisfies: 2.0<|SAG42 / SAG41|<7.0.

[0013] According to one embodiment of the present invention, the on-axis distance TTL from the object side of the first lens to the imaging surface and the combined focal length f123 of the first lens, the second lens and the third lens satisfy the following conditions: 1.5 <TTL / f123<3.0。

[0014] According to one embodiment of the present invention, the distance BFL from the image side surface of the last lens of the optical imaging system to the imaging plane on the optical axis and the center thickness CT5 of the fifth lens on the optical axis meet the following conditions: 1.0 <BFL / CT5<5.0。

[0015] According to one embodiment of the present invention, the center thickness CT4 of the fourth lens on the optical axis and the center thickness CT5 of the fifth lens on the optical axis satisfy the following relationship: 0.2 <CT5 / CT4<0.7。

[0016] According to one embodiment of the present invention, 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 center thickness CT4 of the fourth lens on the optical axis satisfy the following relationship: (T23+T34)*2 <CT4。

[0017] According to one embodiment of the present invention, the curvature radius R3 of the object-side surface of the second lens and the curvature radius R4 of the image-side surface of the second lens satisfy the following relationship: 0<(R3+R4) / (R3-R4)<0.6.

[0018] According to one embodiment of the present invention, a center thickness CT4 of the fourth lens on the optical axis and an edge thickness ET4 of the fourth lens satisfy the following relationship: 3<CT4 / ET4<5.

[0019] One aspect of the present invention provides an optical imaging lens, wherein the effective focal length f1 of a first lens element, half of the maximum field of view (Semi-FOV) of the optical imaging system, the maximum field of view (FOV) of the optical imaging system, the effective focal length f4 of the fourth lens element, and the effective focal length f5 of the fifth lens element satisfy the following conditions:

[0020] 9mm2 <f1 2 *tan(Semi-FOV)<15mm 2 ;

[0021] 110° <FOV<130°;

[0022] |f5 / f4|<3.0.

[0023] According to one embodiment of the present invention, half of the maximum field of view (Semi-FOV) of the optical imaging system, the maximum effective radius DT11 of the object side surface of the first lens, the maximum effective radius DT42 of the image side surface of the fourth lens, and the on-axis distance SAG42 between the intersection of the image side surface of the fourth lens and the optical axis and the vertex of the effective radius of the image side surface of the fourth lens satisfy the following conditions:

[0024] 0.5 <tan(Semi-FOV) / DT11<1.0;

[0025] -2.5 <DT42 / SAG42<-1.0。

[0026] According to one embodiment of the present invention, the on-axis distance TTL from the object side of the first lens to the imaging plane, the combined focal length f123 of the first lens, the second lens, and the third lens, the distance BFL from the image side of the last lens of the optical imaging system to the imaging plane on the optical axis, and the center thickness CT5 of the fifth lens on the optical axis satisfy the following conditions:

[0027] 1.5 <TTL / f123<3.0;

[0028] 1.0 <BFL / CT5<5.0。

[0029] According to one embodiment of the present invention, the center thickness CT4 of the fourth lens on the optical axis, the center thickness CT5 of the fifth lens on the optical axis, 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 center thickness CT4 of the fourth lens on the optical axis satisfy the following conditions:

[0030] 0.2 <CT5 / CT4<0.7;

[0031] (T23+T34)*2 <CT4。

[0032] According to one embodiment of the present invention, the curvature radius R3 of the object side surface of the second lens, the curvature radius R4 of the image side surface of the second lens, the center thickness CT4 of the fourth lens on the optical axis, and the edge thickness ET4 of the fourth lens satisfy the following relationship:

[0033] 0<(R3+R4) / (R3-R4)<0.6;

[0034] 3﹤CT4 / ET4﹤5.

[0035] One aspect of the present invention provides an optical imaging lens, wherein the effective focal length f1 of a first lens, half the maximum field of view (Semi-FOV) of the optical imaging system, the edge thickness ET5 of a fifth lens and the center thickness CT5 of the fifth lens on the optical axis, the on-axis distance SAG41 between the intersection of the object side surface of the fourth lens and the optical axis and the vertex of the effective radius of the object side surface of the fourth lens, and the on-axis distance SAG42 between the intersection of the image side surface of the fourth lens and the optical axis and the vertex of the effective radius of the image side surface of the fourth lens satisfy the following conditions:

[0036] 9mm 2 <f1 2 *tan(Semi-FOV)<15mm 2 ;

[0037] 1.5 <ET5 / CT5<3.5;

[0038] 2.0<|SAG42 / SAG41|<7.0.

[0039] According to one embodiment of the present invention, for the maximum field of view FOV of the optical imaging system, the center thickness CT4 of the fourth lens on the optical axis and the edge thickness ET4 of the fourth lens satisfy the following:

[0040] 110° <FOV<130°;

[0041] 3﹤CT4 / ET4﹤5.

[0042] According to one embodiment of the present invention, the effective focal length f4 of the fourth lens, the effective focal length f5 of the fifth lens, the curvature radius R3 of the object side surface of the second lens, and the curvature radius R4 of the image side surface of the second lens satisfy the following relationship:

[0043] |f5 / f4|<3.0;

[0044] 0<(R3+R4) / (R3-R4)<0.6.

[0045] According to one embodiment of the present invention, half of the maximum field of view (Semi-FOV) of the optical imaging system, the maximum effective radius DT11 of the object side of the first lens, 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 center thickness CT4 of the fourth lens on the optical axis satisfy the following conditions:

[0046] 0.5 <tan(Semi-FOV) / DT11<1.0;

[0047] (T23+T34)*2 <CT4。

[0048] According to one embodiment of the present invention, the maximum effective radius DT42 of the image-side surface of the fourth lens, the on-axis distance SAG42 between the intersection of the image-side surface of the fourth lens and the optical axis and the vertex of the effective radius of the image-side surface of the fourth lens, the center thickness CT4 of the fourth lens on the optical axis, and the center thickness CT5 of the fifth lens on the optical axis satisfy the following conditions:

[0049] -2.5 <DT42 / SAG42<-1.0;

[0050] 0.2 <CT5 / CT4<0.7。

[0051] According to one embodiment of the present invention, the on-axis distance TTL from the object side of the first lens to the imaging plane, the combined focal length f123 of the first lens, the second lens, and the third lens, the distance BFL from the image side of the last lens of the optical imaging system to the imaging plane on the optical axis, and the center thickness CT5 of the fifth lens on the optical axis satisfy the following conditions:

[0052] 1.5 <TTL / f123<3.0;

[0053] 1.0 <BFL / CT5<5.0。

[0054] Positive effects of the present invention: Using the technical solution provided by the present invention, the size of the camera lens of the optical system is getting smaller and smaller, which is conducive to miniaturization. An optical imaging system with wide angle and small optical distortion is provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0056] Figure 1 FIG2 is a schematic structural diagram of an optical imaging lens according to a first embodiment of the present invention;

[0057] Figure 2-Figure 5 1. The figure shows the axial chromatic aberration curve, astigmatism curve, distortion curve, and lateral chromatic aberration curve of the optical imaging lens according to the first embodiment of the present invention;

[0058] Figure 6 FIG2 is a schematic structural diagram of an optical imaging lens according to a second embodiment of the present invention;

[0059] Figure 7-10 1. The figure shows the axial chromatic aberration curve, astigmatism curve, distortion curve, and lateral chromatic aberration curve of the optical imaging lens according to the second embodiment of the present invention;

[0060] Figure 11 FIG2 is a schematic structural diagram of an optical imaging lens according to a third embodiment of the present invention;

[0061] Figure 12-15 FIG2 shows an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a lateral chromatic aberration curve of the optical imaging lens according to the third embodiment of the present invention;

[0062] Figure 16 FIG2 is a schematic structural diagram of an optical imaging lens according to a fourth embodiment of the present invention;

[0063] Figures 17-20 FIG2 shows an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a lateral chromatic aberration curve of the optical imaging lens according to a fourth embodiment of the present invention;

[0064] Figure 21 FIG2 is a schematic structural diagram of an optical imaging lens according to a fifth embodiment of the present invention;

[0065] Figure 22-Figure 25 1. The figure shows the axial chromatic aberration curve, astigmatism curve, distortion curve, and lateral chromatic aberration curve of the optical imaging lens according to the fifth embodiment of the present invention;

[0066] Figure 26 FIG2 is a schematic structural diagram of an optical imaging lens according to a sixth embodiment of the present invention;

[0067] Figures 27-30 FIG2 shows an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a lateral chromatic aberration curve of the optical imaging lens according to a sixth embodiment of the present invention;

[0068] Figure 31 FIG2 is a schematic structural diagram of an optical imaging lens according to a seventh embodiment of the present invention;

[0069] Figure 32-Figure 35 FIG2 shows an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a lateral chromatic aberration curve of the optical imaging lens according to the seventh embodiment of the present invention;

[0070] Figure 36 FIG2 is a schematic structural diagram of an optical imaging lens according to an eighth embodiment of the present invention;

[0071] Figures 37-40 FIG2 shows an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a lateral chromatic aberration curve of the optical imaging lens according to the eighth embodiment of the present invention. DETAILED DESCRIPTION

[0072] For a better understanding of the present application, various aspects of the present application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are merely 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.

[0073] It should be noted that in this specification, the terms "first," "second," "third," etc., are used solely to distinguish one feature from another and do not limit the features. Thus, the first lens discussed below could also be referred to as the second lens or the third lens without departing from the teachings of this application.

[0074] In the drawings, the thickness, size, and shape of the lenses are slightly exaggerated for ease of illustration. Specifically, the shapes of the spherical and aspherical surfaces shown in the drawings are provided by way of example. That is, the shapes of the spherical and aspherical surfaces are not limited to those shown in the drawings. The drawings are for illustration only and are not drawn strictly to scale.

[0075] In this article, the paraxial region refers to the area near the optical axis. If a lens surface is convex and the location of the convex surface is undefined, it means that the lens surface is convex at least in the paraxial region. If a lens surface is concave and the location of the concave surface is undefined, it means that the lens surface is concave at least in the paraxial region. The surface of each lens closest to the subject is called the object-side surface of the lens, and the surface of each lens closest to the imaging plane is called the image-side surface of the lens.

[0076] 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 preclude 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 list of 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.

[0077] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by those skilled in the art to which this application belongs. It should also be understood that terms (such as those defined in commonly used dictionaries) should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology and will not be interpreted in an idealized or overly formal manner unless expressly defined as such herein.

[0078] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this 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.

[0079] The features, principles and other aspects of the present application are described in detail below.

[0080] The optical imaging lens according to an exemplary embodiment of the present application may include five lenses, which are, in order from the object side to the image side: a first lens, a second lens, a third lens, a fourth lens, and a fifth lens.

[0081] In an embodiment of the present application, by reasonably controlling the optical power of each optical component of the system, the low-order aberrations of the control system are effectively balanced. The first lens has a negative optical power, its object side is concave, and its image side is concave; the second lens has a positive optical power or a negative optical power; the third lens has a negative optical power; the fourth lens has a positive optical power or a negative optical power; the fifth lens has a positive optical power or a negative optical power; the optical imaging lens of the present application can satisfy 9mm 2 <f1 2 *tan(Semi-FOV) < 15mm 2 The condition; where f1 is the effective focal length of the first lens, and Semi-FOV is half of the maximum field angle of the optical imaging system. By adjusting the ratio of the focal length and the field angle of L1, it can be ensured that the effective diameter of L1 is as small as possible at a certain field angle. More specifically, between f1 and Semi-FOV, it can satisfy: 9.28 ≤ f1 2 *tan(Semi-FOV) ≤ 14.94.

[0082] In an embodiment of the present application, the optical imaging lens according to the present application can satisfy the condition of 110° < FOV < 130°; where FOV is the maximum field angle of the optical imaging system. By controlling the maximum field angle, the imaging range of the system can be effectively controlled. More specifically, FOV can satisfy: 116.08° ≤ FOV ≤ 117.34°

[0083] In an embodiment of the present application, the optical imaging lens according to the present application can satisfy the condition of |f5 / f4| < 3.0; where f4 is the effective focal length of the fourth lens, and f5 is the effective focal length of the fifth lens. By controlling the effective focal lengths of the fourth lens and the fifth lens, the contribution amount of their aberrations to the entire optical system can be controlled, and the off-axis aberrations of the system can be balanced, thereby improving the imaging quality of the system. More specifically, between f5 and f4, it can satisfy: 0.4 ≤ |f5 / f4| ≤ 2.45.

[0084] In an embodiment of the present application, the optical imaging lens according to the present application can satisfy the condition of 0.5 < tan(Semi-FOV) / DT11 < 1.0; where Semi-FOV is half of the maximum field angle of the optical imaging system, and DT11 is the maximum effective radius of the object side of the first lens. By adjusting the ratio of the effective diameter and the field angle of L1, it can be ensured that the effective diameter of L1 is as small as possible at a certain field angle. More specifically, between tan(Semi-FOV) and DT11, it can satisfy: 0.71 ≤ tan(Semi-FOV) / DT11 ≤ 0.90.

[0085] In the embodiments of the present application, the optical imaging lens according to the present application can meet the condition of -2.5 < DT42 / SAG42 < -1.0; where DT42 is the maximum effective radius of the image side surface of the fourth lens. By controlling the ratio of the sagittal height to the effective diameter of the fourth lens, the lens diameter can be minimized while ensuring the resolving power. More specifically, the relationship between DT42 and SAG42 can satisfy:

[0086] -2.39 ≤ DT42 / SAG42 ≤ -1.39.

[0087] In the embodiments of the present application, the optical imaging lens according to the present application can meet the condition of 1.5 < ET5 / CT5 < 3.5; where ET5 is the edge thickness of the fifth lens and CT5 is the central thickness of the fifth lens on the optical axis. By controlling the ratio of the edge thickness to the central thickness of the fifth lens, the manufacturability of the lens can be ensured. More specifically, the relationship between ET5 and CT5 can satisfy: 1.71 ≤ ET5 / CT5 ≤ 3.36.

[0088] In the embodiments of the present application, the optical imaging lens according to the present application can meet the condition of 2.0 < |SAG42 / SAG41| < 7.0; where SAG41 is the axial distance between the intersection of the object side surface of the fourth lens and the optical axis and the vertex of the effective radius of the object side surface of the fourth lens, and SAG42 is the axial distance between the intersection of the image side surface of the fourth lens and the optical axis and the vertex of the effective radius of the image side surface of the fourth lens. By controlling the ratio of the sagittal height of the object surface to the image surface of the fourth lens, the deflection of the marginal rays can be effectively controlled, and the high-order spherical aberration generated by the imaging system can be balanced. More specifically, the relationship between SAG42 and SAG41 can satisfy:

[0089] 2.27 ≤ |SAG42 / SAG41| ≤ 6.83.

[0090] In the embodiments of the present application, the optical imaging lens according to the present application can meet the condition of 1.5 < TTL / f123 < 3.0; where TTL is the axial distance from the object side surface of the first lens to the imaging surface, and f123 is the combined focal length of the first lens, the second lens, and the third lens. By controlling the combined focal length of the first lens, the second lens, and the third lens and the lens length, the lens focal length can be controlled within a range where TTL is minimized, thereby controlling the lens distortion. More specifically, the relationship between TTL and f123 satisfies:

[0091] 1.94 ≤ TTL / f123 ≤ 2.85.

[0092] In the embodiments of the present application, the optical imaging lens according to the present application can meet the condition of 1.0 < BFL / CT5 < 5.0; where BFL is the distance from the image side surface of the last lens of the optical imaging system to the imaging surface on the optical axis, and CT5 is the central thickness of the fifth lens on the optical axis. The field curvature of the lens can be balanced by controlling the ratio of the central thickness of the fifth lens to the distance from the last lens to the imaging surface, effectively improving the resolution. More specifically, 1.45 ≤ BFL / CT5 ≤ 4.65.

[0093] In the embodiments of the present application, the optical imaging lens according to the present application can meet the condition of 0.2 < CT5 / CT4 < 0.7; where CT4 is the central thickness of the fourth lens on the optical axis, and CT5 is the central thickness of the fifth lens on the optical axis. By restricting the ratio of the central thicknesses of the fourth lens and the fifth lens, the field curvature contribution of each field of the system can be controlled within a reasonable range, balancing the field curvature generated by other lenses, and effectively improving the lens resolution. More specifically, CT5 and CT4 satisfy: 0.22 ≤ CT5 / CT4 ≤ 0.67.

[0094] In the embodiments of the present application, the optical imaging lens according to the present application can meet the condition of 0 < (R3 + R4) / (R3 - R4) < 0.6; where R3 is the curvature radius of the object side surface of the second lens, and R4 is the curvature radius of the image side surface of the second lens. By controlling the curvature radii of the object and image side surfaces of the first lens, the optical path can be deflected well, balancing the high-order spherical aberration generated by the imaging system. More specifically, R3 and R4 satisfy: 0.35 ≤ (R3 + R4) / (R3 - R4) ≤ 0.54.

[0095] In the embodiments of the present application, the optical imaging lens according to the present application can meet the condition of 3 < CT4 / ET4 < 5; where CT4 is the central thickness of the fourth lens on the optical axis, and ET4 is the edge thickness of the fourth lens. By controlling the ratio of the edge thickness to the central thickness of the fourth lens, the manufacturability of the lens can be ensured. More specifically, CT4 and ET4 satisfy:

[0096] 3.28 ≤ CT4 / ET4 ≤ 4.38.

[0097] Each technical feature in the above-mentioned inventive optical imaging lens can be combined and configured to achieve the corresponding effects.

[0098] The optical imaging lens according to the above embodiments of the present application can adopt multiple lenses, such as the five lenses described above. By reasonably controlling the optical power of each optical element of the system, the low-order aberrations of the control system can be effectively balanced. By adjusting the ratio of the focal length of L1 to the field angle and by adjusting the ratio of the effective diameter of L1 to the field angle, it is ensured that the effective diameter of L1 is as small as possible at a certain field angle, making the imaging system have the characteristics of wide angle and small optical distortion.

[0099] Specific embodiments of the optical imaging lens applicable to the above embodiments will be further described below with reference to the accompanying drawings.

[0100] Example 1

[0101] Figure 1 FIG. 1 is a schematic structural diagram of the optical imaging lens according to the first embodiment of the present application. Figure 1 As shown, the camera lens assembly 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.

[0102] The first lens E1 has negative power, with its object-side surface S1 being concave and its image-side surface S2 being concave. The second lens E2 has positive power, with its object-side surface S3 being convex and its image-side surface S4 being convex. The third lens E3 has negative power, with its object-side surface S5 being convex and its image-side surface S6 being concave. The fourth lens E4 has positive power, with its object-side surface S7 being concave and its image-side surface S8 being convex. The fifth lens E5 has negative power, with its object-side surface S9 being convex and its image-side surface S10 being concave. Light from an object sequentially passes through surfaces S1 to S12 and is ultimately imaged on imaging surface S13.

[0103] Table 1 shows the basic parameters of the optical imaging lens of the first embodiment, where the curvature radius, thickness, and focal length are in millimeters.

[0104] Face number Surface type Radius of curvature thickness focal length Refractive index dispersion coefficient Cone coefficient OB spherical surface endless endless S1 Aspheric -3.4079 0.9300 0.6567 S2 Aspheric 2.5421 0.5231 -2.53 1.49 70.4 -3.1367 STO spherical surface 0.0931 S3 Aspheric 2.6375 0.9020 1.21 1.60 61.4 2.5198 S4 Aspheric -0.7783 0.0672 -0.9401 S5 Aspheric 5.4038 0.2086 -2.63 1.76 27.6 4.0607 S6 Aspheric 1.3201 0.107 -22.1463 S7 Aspheric -3.6472 0.9448 2.20 1.61 60.4 -0.9014 S8 Aspheric -0.9854 0.0432 -1.8059 S9 Aspheric 0.8399 0.3239 -5.38 1.75 27.7 -1.0474 S10 Aspheric 0.5755 0.4727 -3.5835 S11 spherical surface endless 0.2100 1.51 64.2 S12 spherical surface endless 0.2468 S13 spherical surface endless

[0105] Table 1

[0106] In this first embodiment, the effective focal length f of the optical imaging system is 1.24 mm, the on-axis distance TTL from the object side to the image side of the first lens in the direction from the object side to the image side among the nine lenses is 5.08 mm, the maximum half image height ImgH is 2.00 mm, half of the maximum field of view angle of the optical imaging system Semi-FOV is 58.67 mm, and the aperture number Fno of the optical imaging system is 2.25.

[0107] In the first embodiment, the effective focal length f1 of the first lens and half of the maximum field of view of the optical imaging system Semi-FOV, f1 2 *tan(Semi-FOV)=10.50, satisfying the relationship: 9mm 2 <f1 2 *tan(Semi-FOV)<15mm 2 .

[0108] In the first embodiment, the maximum field of view FOV of the optical imaging system is FOV = 117.34°, which satisfies the relationship: 110° <FOV<130°。

[0109] In the first embodiment, the effective focal length f4 of the fourth lens and the effective focal length f5 of the fifth lens, |f5 / f4|=2.45, satisfying the relationship: |f5 / f4|<3.0.

[0110] In the first embodiment, half of the maximum field of view angle Semi-FOV of the optical imaging system and the maximum effective radius DT11 of the object side of the first lens, tan(Semi-FOV) / DT11=0.88, satisfy the relationship: 0.5 <tan(Semi-FOV) / DT11<1.0。

[0111] In the first embodiment, the maximum effective radius DT42 of the image side surface of the fourth lens and the on-axis distance SAG42 from the intersection of the image side surface of the fourth lens and the optical axis to the vertex of the effective radius of the image side surface of the fourth lens, DT42 / SAG42=-2.21, satisfy the relationship: -2.5 <DT42 / SAG42<-1.0。

[0112] In the first embodiment, the edge thickness ET5 of the fifth lens and the center thickness CT5 of the fifth lens on the optical axis, ET5 / CT5=1.93, satisfy the relationship: 1.5 <ET5 / CT5<3.5。

[0113] In this first embodiment, the on-axis distance SAG41 between the intersection of the objective side surface of the fourth lens and the optical axis to the effective radius vertex of the objective side surface of the fourth lens, and the on-axis distance SAG42 between the intersection of the image side surface of the fourth lens and the optical axis to the effective radius vertex of the image side surface of the fourth lens, |SAG42 / SAG41|=3.61, satisfying the relationship: 2.0<|SAG42 / SAG41|<7.0.

[0114] In the first embodiment, the axial distance TTL from the object side of the first lens to the imaging surface and the combined focal length f123 of the first lens, the second lens and the third lens, TTL / f123=2.09, satisfy the relationship: 1.5 <TTL / f123<3.0。

[0115] In the first embodiment, the distance BFL from the image side surface of the last lens of the optical imaging system to the imaging plane on the optical axis and the center thickness CT5 of the fifth lens on the optical axis, BFL / CT5=2.87, satisfy the relationship: 1.0 <BFL / CT5<5.0。

[0116] In the first embodiment, the center thickness CT4 of the fourth lens on the optical axis and the center thickness CT5 of the fifth lens on the optical axis are CT5 / CT4=0.34, which satisfies the relationship: 0.2 <CT5 / CT4<0.7。

[0117] In the first 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 center thickness CT4 of the fourth lens on the optical axis satisfy the following relationship: (T23+T34)*2 <CT4。

[0118] In the first embodiment, the curvature radius R3 of the object side surface of the second lens and the curvature radius R4 of the image side surface of the second lens, (R3+R4) / (R3-R4)=0.54, satisfying: 0<(R3+R4) / (R3-R4)<0.6.

[0119] In the first embodiment, the center thickness CT4 of the fourth lens on the optical axis and the edge thickness ET4 of the fourth lens are CT4 / ET4=4.18, which satisfies the relationship: 3<CT4 / ET4<5.

[0120] In the first embodiment, the object-side surface and the image-side surface of any lens among the first lens E1 to the fifth lens E5 are both aspherical surfaces. The surface shape x of each aspherical lens can be defined by, but is not limited to, the following aspherical surface formula:

[0121]

[0122] 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 conic coefficient (given in Table 1); Ai is the correction coefficient of the i-th order aspheric surface.

[0123] Table 2 below lists the high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18 and A20 of the aspheric surfaces S1-S20 that can be used for the aspheric lenses in the first embodiment of the present application.

[0124] Face number A A6 A8 A10 A12 A14 A16 A18 A20 S1 2.1937E-01 -1.6976E-01 1.2890E-01 -7.4025E-02 3.0162E-02 -8.1635E-03 1.3612E-03 -1.2237E-04 4.3398E-06 S2 5.4190E-01 -3.4207E-01 5.3369E+00 -6.4046E+01 4.6233E+02 -1.9200E+03 4.6711E+03 -6.1752E+03 3.4474E+03 S3 -3.8158E-02 6.0690E-01 -3.0840E+01 5.6358E+02 -5.8585E+03 3.5989E+04 -1.2936E+05 2.5030E+05 -2.0058E+05 S4 -1.9482E-01 5.8501E+00 -4.6010E+01 2.0251E+02 -5.4627E+02 8.6074E+02 -6.8395E+02 1.2440E+02 9.9838E+01 S5 -1.4353E+00 9.0332E+00 -5.7151E+01 2.5861E+02 -7.9242E+02 1.6037E+03 -2.0706E+03 1.5525E+03 -5.1774E+02 S6 3.2881E-01 -2.6333E+00 8.6367E+00 -1.6432E+01 2.0279E+01 -1.7286E+01 1.0242E+01 -3.8446E+00 6.6903E-01 S7 1.2484E+00 -4.4000E+00 9.6464E+00 -1.2528E+01 8.9761E+00 -2.3147E+00 -1.2079E+00 1.0267E+00 -2.1631E-01 S8 -2.3262E-01 1.7020E+00 -7.6012E+00 1.9527E+01 -3.0550E+01 2.9825E+01 -1.7770E+01 5.9189E+00 -8.4453E-01 S9 -1.0031E+00 2.4415E+00 -9.1569E+00 2.1600E+01 -3.0403E+01 2.6236E+01 -1.3694E+01 3.9818E+00 -4.9657E-01 S10 1.5475E-01 -1.5380E+00 3.2584E+00 -3.7669E+00 2.6804E+00 -1.2013E+00 3.3011E-01 -5.0746E-02 3.3375E-03

[0125] Table 2

[0126] Figure 2 FIG. 1 shows an on-axis chromatic aberration curve of the optical imaging lens in the first embodiment of the present invention, which indicates the deviation of the convergent focus of light of different wavelengths passing through the lens. Figure 3 FIG. 1 shows the astigmatism curve of the optical imaging lens in the first embodiment, which represents the meridional image curvature and the sagittal image curvature. Figure 4FIG. 1 shows the distortion curve of the optical imaging lens in the first embodiment, which indicates the distortion values ​​corresponding to different image heights. Figure 5 The figure shows the magnification chromatic aberration curve of the optical imaging lens in the first embodiment, which represents the deviation of different image heights on the imaging surface after the light passes through the lens. Figures 2 to 5 It can be seen that the optical imaging lens provided in the first embodiment can achieve good imaging quality.

[0127] Example 2

[0128] Figure 6 FIG. 1 is a schematic structural diagram of an optical imaging lens according to a second embodiment of the present application. Figure 6 As shown, the camera lens assembly 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.

[0129] The first lens E1 has negative power, with its object-side surface S1 being concave and its image-side surface S2 being concave. The second lens E2 has positive power, with its object-side surface S3 being convex and its image-side surface S4 being convex. The third lens E3 has negative power, with its object-side surface S5 being convex and its image-side surface S6 being concave. The fourth lens E4 has positive power, with its object-side surface S7 being concave and its image-side surface S8 being convex. The fifth lens E5 has negative power, with its object-side surface S9 being convex and its image-side surface S10 being concave. Light from an object sequentially passes through surfaces S1 to S12 and is ultimately imaged on imaging surface S13.

[0130] In the second embodiment of the present application, the parameters of each relational expression are the same as those explained in the first embodiment, and the values ​​of each relational expression are listed in Table 3 below.

[0131]

[0132] Table 3

[0133] Table 4 shows the basic parameters of the optical imaging lens of Example 2 of the present application, wherein the curvature radius, thickness, and focal length are all in millimeters.

[0134] Face number Surface type Radius of curvature thickness focal length Refractive index dispersion coefficient Cone coefficient OBJ spherical surface endless endless S1 Aspheric -3.6855 0.8614 0.6567 S2 Aspheric 2.3913 0.6157 -2.53 1.55 56.1 -3.1367 STO spherical surface 0.0871 S3 Aspheric 2.3007 0.9347 1.14 1.68 56.1 2.5198 S4 Aspheric -0.7281 0.0418 -0.9401 S5 Aspheric 21.6749 0.2364 -2.01 1.67 20.4 4.0607 S6 Aspheric 1.2557 0.0978 -22.1463 S7 Aspheric -4.4773 0.9209 2.15 1.55 56.1 -0.9014 S8 Aspheric -0.9975 0.0685 -1.8059 S9 Aspheric 0.8055 0.3016 -5.00 1.54 56.1 -10474 S10 Aspheric 0.5397 0.5053 -3.5835 S11 spherical surface endless 0.2100 1.51 64.2 S12 spherical surface endless 0.2794 S13 spherical surface endless

[0135] Table 4

[0136] Table 5 below lists the higher-order coefficients A4, A6, A8, A10, A12, A14, A16, A18, and A20 of the aspheric surfaces S1-S20 that can be used for the aspheric lenses in the second embodiment of the present application. The surface shape of each aspheric surface can be defined by formula (1) given in the above embodiment 1.

[0137]

[0138]

[0139] Table 5

[0140] Figure 7 FIG. 1 shows an axial chromatic aberration curve of the optical imaging lens in the second embodiment of the present application, which indicates the deviation of the convergent focus of light of different wavelengths passing through the lens. Figure 8 FIG. 4 shows the astigmatism curve of the optical imaging lens in the second embodiment of the present application, which represents the meridional image curvature and the sagittal image curvature. Figure 9 FIG. 1 shows the distortion curve of the optical imaging lens in the second embodiment of the present application, which indicates the distortion values ​​corresponding to different image heights. Figure 10 The figure shows the magnification chromatic aberration curve of the optical imaging lens in the second embodiment of the present application, which represents the deviation of different image heights on the imaging surface after the light passes through the lens. Figures 7 to 10 It can be seen that the optical imaging lens provided in the second embodiment of the present application can achieve good imaging quality.

[0141] Example 3

[0142] Figure 11 FIG. 1 is a schematic structural diagram of an optical imaging lens according to a third embodiment of the present application. Figure 11 As shown, the camera lens assembly 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.

[0143] The first lens E1 has negative power, with its object-side surface S1 being concave and its image-side surface S2 being concave. The second lens E2 has positive power, with its object-side surface S3 being convex and its image-side surface S4 being convex. The third lens E3 has negative power, with its object-side surface S5 being convex and its image-side surface S6 being concave. The fourth lens E4 has positive power, with its object-side surface S7 being concave and its image-side surface S8 being convex. The fifth lens E5 has negative power, with its object-side surface S9 being convex and its image-side surface S10 being concave. Light from an object sequentially passes through surfaces S1 to S12 and is ultimately imaged on imaging surface S13.

[0144] In the third embodiment of the present application, the parameters of each relational expression are the same as those explained in the first embodiment, and the values ​​of each relational expression are listed in Table 6 below.

[0145]

[0146]

[0147] Table 6

[0148] Table 7 shows the basic parameters of the optical imaging lens of the third embodiment of the present application, where the curvature radius, thickness, and focal length are all in millimeters.

[0149] Face number Surface type Radius of curvature thickness focal length Refractive index dispersion coefficient Cone coefficient OBJ spherical surface endless endless S1 Aspheric -3.4466 1.0481 1.2064 S2 Aspheric 2.5263 0.5852 -2.51 1.55 56.1 -2.1422 STO spherical surface 0.1467 S3 Aspheric 2.3832 0.8902 1.22 1.55 56.1 3.9348 S4 Aspheric -0.8055 0.0300 -0.9069 S5 Aspheric 4.1119 0.2426 -3.26 1.68 19.2 -18.7462 S6 Aspheric 1.4018 0.2109 -24.1836 S7 Aspheric -2.2150 0.8829 1.30 1.55 56.1 2.9403 S8 Aspheric -0.6122 0.0328 -1.7925 S9 Aspheric 3.6005 0.4478 -1.49 1.67 20.4 2.6201 S10 Aspheric 0.7395 0.4451 -6.9740 S11 spherical surface endless 0.2100 1.51 64.2 S12 spherical surface endless 0.2192 S13 spherical surface endless

[0150] Table 7

[0151] Table 8 below lists the high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18, and A20 of the aspheric surfaces S1-S20 that can be used for the aspheric lenses in the third embodiment of the present application. The surface shape of each aspheric surface can be defined by formula (1) given in the above embodiment 1.

[0152] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 1.9983E-01 -1.4678E-01 1.0480E-01 -5.6302E-02 2.1519E-02 -5.5505E-03 9.1019E-04 -8.5002E-05 3.4306E-06 S2 5.1626E-01 -3.6123E-01 3.7658E+00 -4.2167E+01 2.9904E+02 -1.1963E+03 2.7569E+03 -3.4130E+03 1.7736E+03 S3 -1.7834E-02 -1.0450E+00 2.2430E+01 -2.9607E+02 2.2287E+03 -1.0064E+04 2.6847E+04 -3.9039E+04 2.3813E+04 S4 -1.2051E-01 7.0733E-01 4.9058E+00 -4.7216E+01 1.7107E+02 -3.6125E+02 4.5783E+02 -3.2126E+02 9.4237E+01 S5 -8.9413E-01 1.2225E+00 -3.8873E+00 3.8010E+01 -1.9109E+02 4.8622E+02 -6.6927E+02 4.6215E+02 -1.1903E+02 S6 5.4339E-01 -5.5397E+00 2.3202E+01 -5.8990E+01 9.5622E+01 -9.8155E+01 6.0773E+01 -2.0226E+01 2.6473E+00 S7 8.0079E-01 -1.3271E+00 -3.7278E+00 2.7538E+01 -7.5550E+01 1.1677E+02 -1.0527E+02 5.1534E+01 -1.0592E+01 S8 2.9478E-01 -1.4244E+00 4.2040E+00 -9.7429E+00 1.6537E+01 -1.9229E+01 1.4161E+01 -5.8995E+00 1.0577E+00 S9 -7.2853E-01 1.0819E+00 -1.7320E+00 3.0614E+00 -4.2667E+00 3.8495E+00 -2.0968E+00 6.3040E-01 -8.0542E-02 S10 -4.7125E-01 8.5612E-01 -1.1060E+00 1.1085E+00 -8.3281E-01 4.3399E-01 -1.4463E-01 2.7462E-02 -2.2501E-03

[0153] Table 8

[0154] Figure 12 FIG. 1 shows an axial chromatic aberration curve of the optical imaging lens in the third embodiment of the present application, which indicates the deviation of the convergent focus of light of different wavelengths passing through the lens. Figure 13 FIG. 4 shows the astigmatism curve of the optical imaging lens in the third embodiment of the present application, which represents the meridional image curvature and the sagittal image curvature. Figure 14 FIG. 1 shows the distortion curve of the optical imaging lens in the third embodiment of the present application, which indicates the distortion values ​​corresponding to different image heights. Figure 15 The figure shows the magnification chromatic aberration curve of the optical imaging lens in the third embodiment of the present application, which represents the deviation of different image heights on the imaging surface after the light passes through the lens. Figures 12 to 15 It can be seen that the optical imaging lens provided in the third embodiment of the present application can achieve good imaging quality.

[0155] Example 4

[0156] Figure 16 FIG. 1 is a schematic structural diagram of an optical imaging lens according to a fourth embodiment of the present application. Figure 16 As shown, the camera lens assembly 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.

[0157] The first lens E1 has negative power, with its object-side surface S1 and image-side surface S2 being concave. The second lens E2 has positive power, with its object-side surface S3 and image-side surface S4 being convex. The third lens E3 has negative power, with its object-side surface S5 and image-side surface S6 being convex. The fourth lens E4 has positive power, with its object-side surface S7 and image-side surface S8 being concave. The fifth lens E5 has negative power, with its object-side surface S9 and image-side surface S10 being concave. Light from the object sequentially passes through surfaces S1 to S12 and is ultimately imaged on imaging surface S13.

[0158] In the fourth embodiment of the present application, the parameters of each relational expression are the same as those explained in the first embodiment, and the values ​​of each relational expression are listed in Table 9 below.

[0159]

[0160] Table 9

[0161] Table 10 shows the basic parameters of the optical imaging lens of the fourth embodiment of the present application, where the curvature radius, thickness, and focal length are all in millimeters.

[0162]

[0163]

[0164] Table 10

[0165] Table 11 below lists the high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18, and A20 of the aspheric surfaces S1-S20 that can be used for the aspheric lenses in the fourth embodiment of the present application. The surface shape of each aspheric surface can be defined by formula (1) given in the above embodiment 1.

[0166] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 1.5881E-01 -1.0797E-01 7.2389E-02 -3.7280E-02 1.3805E-02 -3.4782E-03 5.6031E-04 -5.1570E-05 2.0457E-06 S2 4.2972E-01 -8.6037E-02 1.3134E-01 -3.9297E+00 4.4778E+01 -1.9346E+02 4.3699E+02 -5.0955E+02 2.4682E+02 S3 -5.8929E-02 -3.9282E-01 6.9888E+00 -9.1468E+01 6.4031E+02 -2.6116E+03 6.1731E+03 -7.8491E+03 4.1335E+03 S4 -7.6096E-02 5.5003E-02 6.7714E+00 -4.4889E+01 1.4238E+02 -2.7653E+02 3.3233E+02 -2.2579E+02 6.5126E+01 S5 -7.6165E-01 5.9055E-01 -7.3070E+00 6.6095E+01 -2.7453E+02 6.2392E+02 -8.1393E+02 5.6225E+02 -1.5467E+02 S6 5.6572E-01 -5.4957E+00 2.1692E+01 -5.3737E+01 8.8130E+01 -9.5278E+01 6.4703E+01 -2.4700E+01 3.9671E+00 S7 3.8472E-01 1.3549E+00 -1.0240E+01 3.0993E+01 -6.0744E+01 8.1200E+01 -7.0017E+01 3.4609E+01 -7.3921E+00 S8 5.1865E-01 -2.5506E+00 7.6862E+00 -1.6477E+01 2.3765E+01 -2.2972E+01 1.4400E+01 -5.3494E+00 9.0811E-01 S9 4.2868E-01 -2.1683E+00 5.4859E+00 -9.8521E+00 1.1837E+01 -9.1595E+00 4.3813E+00 -1.1791E+00 1.3631E-01 S10 -9.3084E-02 7.1497E-02 -1.5886E-01 2.1655E-01 -1.7232E-01 8.5374E-02 -2.6233E-02 4.6011E-03 -3.5269E-04

[0167] Table 11

[0168] Figure 17 FIG. 1 shows an axial chromatic aberration curve of the optical imaging lens in the fourth embodiment of the present application, which indicates the deviation of the convergent focus of light of different wavelengths passing through the lens. Figure 18 FIG. 4 shows the astigmatism curve of the optical imaging lens in the fourth embodiment of the present application, which represents the meridional image curvature and the sagittal image curvature. Figure 19 FIG. 1 shows the distortion curve of the optical imaging lens in the fourth embodiment of the present application, which indicates the distortion values ​​corresponding to different image heights. Figure 20 The figure shows the magnification chromatic aberration curve of the optical imaging lens in the fourth embodiment of the present application, which represents the deviation of different image heights on the imaging surface after the light passes through the lens. Figures 17 to 20It can be seen that the optical imaging lens provided in the fourth embodiment of the present application can achieve good imaging quality.

[0169] Example 5

[0170] Figure 21 FIG. 1 is a schematic structural diagram of an optical imaging lens according to a fifth embodiment of the present application. Figure 21 As shown, the camera lens assembly 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.

[0171] The first lens E1 has negative power, with its object-side surface S1 being concave and its image-side surface S2 being concave. The second lens E2 has positive power, with its object-side surface S3 being convex and its image-side surface S4 being convex. The third lens E3 has negative power, with its object-side surface S5 being convex and its image-side surface S6 being concave. The fourth lens E4 has positive power, with its object-side surface S7 being concave and its image-side surface S8 being convex. The fifth lens E5 has negative power, with its object-side surface S9 being concave and its image-side surface S10 being convex. Light from the object sequentially passes through surfaces S1 to S12 and is ultimately imaged on imaging surface S13.

[0172] In the fifth embodiment of the present application, the parameters of each relational expression are the same as those explained in the first embodiment, and the values ​​of each relational expression are listed in Table 12 below.

[0173]

[0174] Table 12

[0175] Table 13 shows the basic parameters of the camera lens assembly of the fifth embodiment of the present application, wherein the curvature radius, thickness, and focal length are all in millimeters.

[0176]

[0177]

[0178] Table 13

[0179] Table 14 below lists the high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18, and A20 of the aspheric surfaces S1-S20 that can be used for the aspheric lenses in the fifth embodiment of the present application. The surface shape of each aspheric surface can be defined by formula (1) given in the above embodiment 1.

[0180] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 1.8052E-01 -1.3230E-01 9.5861E-02 -5.3218E-02 2.1167E-02 -5.7283E-03 9.9466E-04 -9.9343E-05 4.3189E-06 S2 4.0504E-01 1.8229E-01 -3.6770E+00 2.3774E+01 -7.9635E+01 1.5636E+02 -1.6886E+02 8.1921E+01 -3.9719E+00 S3 -7.3997E-02 -2.3267E-02 1.0261E+00 -3.1514E+01 2.6275E+02 -1.1259E+03 2.6611E+03 -3.3082E+03 1.6823E+03 S4 4.3008E-02 -1.7623E+00 2.0210E+01 -9.8999E+01 2.7111E+02 -4.6169E+02 4.9017E+02 -2.9904E+02 7.9813E+01 S5 -7.2447E-01 -1.5154E-01 -5.1198E+00 7.1480E+01 -3.2006E+02 7.3597E+02 -9.5387E+02 6.5647E+02 -1.8348E+02 S6 5.5874E-01 -5.3523E+00 1.9921E+01 -4.4600E+01 6.3283E+01 -5.6352E+01 2.9489E+01 -7.6737E+00 5.7819E-01 S7 8.3152E-02 3.5466E+00 -1.8517E+01 4.8695E+01 -8.2688E+01 9.5733E+01 -7.2821E+01 3.2430E+01 -6.3332E+00 S8 9.7997E-02 -6.5846E-02 -3.3273E-02 -4.6051E-01 8.3872E-01 -8.0471E-01 6.5758E-01 -4.1642E-01 1.2626E-01 S9 1.1711E+00 -3.2274E+00 4.5002E+00 -3.5622E+00 4.0356E-01 2.2176E+00 -2.1944E+00 8.8790E-01 -1.3700E-01 S10 1.1632E+00 -3.0819E+00 4.4729E+00 -4.2763E+00 2.7530E+00 -1.1709E+00 3.1331E-01 -4.7548E-02 3.1083E-03

[0181] Table 14

[0182] Figure 22FIG. 1 shows an axial chromatic aberration curve of the optical imaging lens in the fifth embodiment of the present application, which indicates the deviation of the convergent focus of light of different wavelengths passing through the lens. Figure 23 FIG. 4 shows the astigmatism curve of the optical imaging lens in the fifth embodiment of the present application, which represents the meridional image curvature and the sagittal image curvature. Figure 24 FIG. 1 shows a distortion curve of the optical imaging lens in the fifth embodiment of the present application, which indicates the distortion values ​​corresponding to different image heights. Figure 25 The figure shows the magnification chromatic aberration curve of the optical imaging lens in the fifth embodiment of the present application, which represents the deviation of different image heights on the imaging surface after the light passes through the lens. Figures 22 to 25 It can be seen that the optical imaging lens provided in the fifth embodiment of the present application can achieve good imaging quality.

[0183] Example 6

[0184] Figure 26 FIG. 1 is a schematic structural diagram of an optical imaging lens according to a sixth embodiment of the present application. Figure 26 As shown, the camera lens assembly 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.

[0185] The first lens E1 has negative power, with its object-side surface S1 being concave and its image-side surface S2 being concave. The second lens E2 has positive power, with its object-side surface S3 being convex and its image-side surface S4 being convex. The third lens E3 has negative power, with its object-side surface S5 being convex and its image-side surface S6 being concave. The fourth lens E4 has positive power, with its object-side surface S7 being convex and its image-side surface S8 being convex. The fifth lens E5 has negative power, with its object-side surface S9 being convex and its image-side surface S10 being concave. Light from the object sequentially passes through surfaces S1 to S12 and is ultimately imaged on imaging surface S13.

[0186] In the sixth embodiment of the present application, the parameters of each relational expression are the same as those explained in the first embodiment, and the values ​​of each relational expression are listed in Table 15 below.

[0187]

[0188] Table 15

[0189] Table 16 shows the basic parameters of the optical imaging lens of the sixth embodiment of the present application, where the curvature radius, thickness, and focal length are all in millimeters.

[0190] Face number Surface type Radius of curvature thickness focal length Refractive index dispersion coefficient Cone coefficient OBJ spherical surface endless endless S1 Aspheric -3.3676 0.9850 0.9167 S2 Aspheric 2.7501 0.5584 -2.62 1.55 56.1 -4.0044 STO spherical surface 0.1386 S3 Aspheric 2.6526 0.9073 1.33 1.55 56.1 2.3465 S4 Aspheric -0.8811 0.0479 -0.9157 S5 Aspheric 3.4733 0.1500 -2.99 1.68 19.2 -0.4903 S6 Aspheric 1.2565 0.0792 -20.5896 S7 Aspheric 2612.0334 1.1047 1.77 1.55 56.1 -90.0000 S8 Aspheric -0.9687 0.1055 -2.4091 S9 Aspheric 0.8432 0.2726 -2.70 1.67 20.4 -1.1732 S10 Aspheric 0.4999 0.4537 -2.9462 S11 spherical surface endless 0.2100 1.51 64.2 S12 spherical surface endless 0.2279 S13 spherical surface endless

[0191] Table 16

[0192] Table 17 below lists the high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18, and A20 of the aspheric surfaces S1-S20 that can be used for the aspheric lenses in the sixth embodiment of the present application. The surface shape of each aspheric surface can be defined by formula (1) given in the above embodiment 1.

[0193] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 2.0255E-01 -1.4851E-01 1.0626E-01 -5.7055E-02 2.1775E-02 -5.6030E-03 9.1750E-04 -8.5910E-05 3.5170E-06 S2 4.7275E-01 7.1775E-03 -5.3401E-01 -1.0461E+01 1.3358E+02 -6.1884E+02 1.4837E+03 -1.8288E+03 9.2604E+02 S3 -2.9611E-02 -4.1636E-01 7.3542E+00 -1.1558E+02 9.5428E+02 -4.6220E+03 1.3098E+04 -2.0274E+04 1.3284E+04 S4 8.5425E-02 1.8158E+00 -1.6587E+01 7.0036E+01 -1.7935E+02 2.7020E+02 -2.2280E+02 8.0556E+01 -4.0031E+00 S5 -1.3264E+00 6.7768E+00 -3.6775E+01 1.4742E+02 -4.0087E+02 7.0821E+02 -7.7958E+02 4.7925E+02 -1.2246E+02 S6 1.6841E-01 -1.1755E+00 2.9681E+00 -4.0546E+00 3.6590E+00 -3.4694E+00 3.4414E+00 -2.1197E+00 5.3305E-01 S7 8.3144E-01 -2.2838E+00 3.5966E+00 -3.0626E+00 9.1394E-01 7.1483E-01 -8.2350E-01 3.2150E-01 -4.7004E-02 S8 -1.4435E-01 1.0661E+00 -4.1711E+00 9.5590E+00 -1.3394E+01 1.1460E+01 -5.8076E+00 1.6026E+00 -1.8621E-01 S9 -1.2661E+00 2.6269E+00 -7.0170E+00 1.3997E+01 -1.7903E+01 1.4195E+01 -6.7577E+00 1.7734E+00 -1.9844E-01 S10 -3.0274E-01 -8.1268E-02 7.0222E-01 -9.8021E-01 7.2138E-01 -3.1743E-01 8.4038E-02 -1.2408E-02 7.8786E-04

[0194] Table 17

[0195] Figure 27 FIG. 1 shows an axial chromatic aberration curve of the optical imaging lens in the sixth embodiment of the present application, which indicates the deviation of the convergent focus of light of different wavelengths passing through the lens. Figure 28 FIG. 4 shows the astigmatism curve of the optical imaging lens in the sixth embodiment of the present application, which represents the meridional image curvature and the sagittal image curvature. Figure 29 FIG. 1 shows the distortion curve of the optical imaging lens in the sixth embodiment of the present application, which indicates the distortion values ​​corresponding to different image heights. Figure 30 The figure shows the magnification chromatic aberration curve of the optical imaging lens in the sixth embodiment of the present application, which represents the deviation of different image heights on the imaging surface after the light passes through the lens. Figures 27 to 30 It can be seen that the optical imaging lens provided in the sixth embodiment of the present application can achieve good imaging quality.

[0196] Example 7

[0197] Figure 31 FIG. 1 is a schematic structural diagram of an optical imaging lens according to a seventh embodiment of the present application. Figure 31 As shown, the camera lens assembly 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.

[0198] The first lens E1 has negative power, with its object-side surface S1 being concave and its image-side surface S2 being concave. The second lens E2 has positive power, with its object-side surface S3 being convex and its image-side surface S4 being convex. The third lens E3 has negative power, with its object-side surface S5 being convex and its image-side surface S6 being concave. The fourth lens E4 has positive power, with its object-side surface S7 being concave and its image-side surface S8 being convex. The fifth lens E5 has positive power, with its object-side surface S9 being convex and its image-side surface S10 being concave. Light from the object sequentially passes through surfaces S1 to S12 and is ultimately imaged on imaging surface S13.

[0199] In the seventh embodiment of the present application, the parameters of each relational expression are the same as those explained in the first embodiment, and the values ​​of each relational expression are listed in Table 18 below.

[0200]

[0201]

[0202] Table 18

[0203] Table 19 shows the basic parameters of the optical imaging lens of the third embodiment of the present application, where the curvature radius, thickness, and focal length are all in millimeters.

[0204] Face number Surface type Radius of curvature thickness focal length Refractive index dispersion coefficient Cone coefficient OBJ spherical surface endless endless S1 Aspheric -2.3159 1.0959 -0.0583 S2 Aspheric 3.3696 0.9537 -2.40 1.53 66.0 1.6654 STO spherical surface -0.0052 S3 Aspheric 1.9894 1.0158 1.16 1.57 63.3 1.5773 S4 Aspheric -0.8116 0.0300 -0.8255 S5 Aspheric 5.7205 0.1500 -1.87 1.76 27.6 -78.8139 S6 Aspheric 1.1260 0.1195 -13.6136 S7 Aspheric -9.9105 0.6501 8.52 1.49 70.4 89.0439 S8 Aspheric -2.9959 0.3488 -2.3466 S9 Aspheric 0.5692 0.2309 5.01 1.75 29.0 -1.3900 S10 Aspheric 0.5523 0.6888 -1.3699 S11 spherical surface endless 0.2100 1.51 64.2 S12 spherical surface endless 0.1742 S13 spherical surface endless

[0205] Table 19

[0206] Table 20 below lists the high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18, and A20 of the aspheric surfaces S1-S20 that can be used for the aspheric lenses in the seventh embodiment of the present application. The surface shape of each aspheric surface can be defined by formula (1) given in the above-mentioned embodiment 1.

[0207]

[0208]

[0209] Table 20

[0210] Figure 32 FIG. 1 shows an axial chromatic aberration curve of the optical imaging lens in the third embodiment of the present application, which indicates the deviation of the convergent focus of light of different wavelengths passing through the lens. Figure 33 FIG. 4 shows the astigmatism curve of the optical imaging lens in the third embodiment of the present application, which represents the meridional image curvature and the sagittal image curvature. Figure 34 FIG. 1 shows the distortion curve of the optical imaging lens in the third embodiment of the present application, which indicates the distortion values ​​corresponding to different image heights. Figure 35 The figure shows the magnification chromatic aberration curve of the optical imaging lens in the third embodiment of the present application, which represents the deviation of different image heights on the imaging surface after the light passes through the lens. Figures 32 to 35 It can be seen that the optical imaging lens provided in the third embodiment of the present application can achieve good imaging quality.

[0211] Example 8

[0212] Figure 36 FIG. 1 is a schematic structural diagram of an optical imaging lens according to a fourth embodiment of the present application. Figure 36 As shown, the camera lens assembly 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.

[0213] The first lens E1 has negative power, with its object-side surface S1 being concave and its image-side surface S2 being concave. The second lens E2 has positive power, with its object-side surface S3 being convex and its image-side surface S4 being convex. The third lens E3 has negative power, with its object-side surface S5 being convex and its image-side surface S6 being concave. The fourth lens E4 has negative power, with its object-side surface S7 being concave and its image-side surface S8 being concave. The fifth lens E5 has positive power, with its object-side surface S9 being convex and its image-side surface S10 being concave. Light from the object sequentially passes through surfaces S1 to S12 and is ultimately imaged on imaging surface S13.

[0214] In the eighth embodiment of the present application, the parameters of each relational expression are the same as those explained in the first embodiment, and the values ​​of each relational expression are listed in Table 21 below.

[0215]

[0216] Table 21

[0217] Table 22 shows the basic parameters of the optical imaging lens of the fourth embodiment of the present application, where the curvature radius, thickness, and focal length are all in millimeters.

[0218] Face number Surface type Radius of curvature thickness focal length Refractive index dispersion coefficient Cone coefficient OBJ spherical surface endless endless S1 Aspheric -2.3241 0.9126 -0.0698 S2 Aspheric 4.7475 1.0030 -3.05 1.49 70.4 -3.1590 STO spherical surface 0.0126 S3 Aspheric 1.9547 0.9842 1.12 1.60 61.4 1.3086 S4 Aspheric -0.8361 0.0302 -0.8385 S5 Aspheric 4.1611 0.1500 -1.99 1.76 27.6 -52.2433 S6 Aspheric 1.0925 0.1246 -12.0812 S7 Aspheric -8.9752 0.7861 -7.49 1.61 60.4 81.4578 S8 Aspheric 9.6406 0.1308 80.5017 S9 Aspheric 0.7762 0.5290 3.00 1.75 27.7 -2.6422 S10 Aspheric 0.8316 0.5221 -1.3595 S11 spherical surface endless 0.2100 1.51 64.2 S12 spherical surface endless 0.0330 S13 spherical surface endless

[0219] Table 22

[0220] Table 23 below lists the high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18, and A20 of the aspheric surfaces S1-S20 that can be used for the aspheric lenses in the fourth embodiment of the present application. The surface shape of each aspheric surface can be defined by formula (1) given in the above embodiment 1.

[0221] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 2.1248E-01 -1.4486E-01 9.1946E-02 -4.3881E-02 1.4983E-02 -3.4942E-03 5.2622E-04 -4.5994E-05 1.7744E-06 S2 2.7551E-01 4.2281E-01 -3.6696E+00 1.4746E+01 -3.5429E+01 5.3498E+01 -4.9303E+01 2.5298E+01 -5.4942E+00 S3 -4.8539E-02 -3.5196E+00 9.2639E+01 -1.4587E+03 1.3912E+04 -8.2180E+04 2.9328E+05 -5.7933E+05 4.8603E+05 S4 4.2913E-01 -2.3751E+00 1.4946E+01 -8.5376E+01 3.4200E+02 -9.2574E+02 1.5760E+03 -1.5075E+03 6.1478E+02 S5 -6.9185E-01 -7.3520E-01 2.1427E+00 4.5392E+01 -3.3031E+02 1.0392E+03 -1.7906E+03 1.6337E+03 -6.1214E+02 S6 4.6655E-01 -4.8267E+00 2.1965E+01 -5.9668E+01 1.0399E+02 -1.1717E+02 8.1871E+01 -3.1661E+01 4.9813E+00 S7 7.8170E-01 -8.4428E-01 -5.8426E+00 3.1625E+01 -7.7904E+01 1.1193E+02 -9.5185E+01 4.4402E+01 -8.7794E+00 S8 -2.5899E+00 1.1475E+01 -3.9326E+01 9.7495E+01 -1.6975E+02 1.9979E+02 -1.5081E+02 6.5761E+01 -1.2570E+01 S9 -1.8412E+00 5.3903E+00 -1.5367E+01 3.4222E+01 -5.7445E+01 6.9467E+01 -5.6779E+01 2.7753E+01 -6.0347E+00 S10 -9.0634E-01 1.4502E+00 -1.9045E+00 1.8699E+00 -1.2998E+00 6.1149E-01 -1.8407E-01 3.1992E-02 -2.4484E-03

[0222] Table 23

[0223] Figure 37 FIG. 1 shows an axial chromatic aberration curve of the optical imaging lens in the fourth embodiment of the present application, which indicates the deviation of the convergent focus of light of different wavelengths passing through the lens. Figure 38 FIG. 4 shows the astigmatism curve of the optical imaging lens in the fourth embodiment of the present application, which represents the meridional image curvature and the sagittal image curvature. Figure 39 FIG. 1 shows the distortion curve of the optical imaging lens in the fourth embodiment of the present application, which indicates the distortion values ​​corresponding to different image heights. Figure 40 The figure shows the magnification chromatic aberration curve of the optical imaging lens in the fourth embodiment of the present application, which represents the deviation of different image heights on the imaging surface after the light passes through the lens. Figures 37 to 40 It can be seen that the optical imaging lens provided in the fourth embodiment of the present application can achieve good imaging quality.

[0224] In summary, in Examples 1-8 of the present application, the optical parameters are as shown in Table 24 below:

[0225] Example parameters 1 2 3 4 5 6 7 8 f 1.24 1.31 1.30 1.32 1.30 1.26 1.24 1.29 f1 -2.53 -2.53 -2.51 -2.54 -2.61 -2.62 -2.40 -3.05 f2 1.21 1.14 1.22 1.29 1.28 1.33 1.16 1.12 f3 -2.63 -2.01 -3.26 -3.99 -3.41 -2.99 -1.87 -1.99 f4 2.20 2.15 1.30 1.22 1.38 1.77 8.52 -7.49 f5 -5.38 -5.00 -1.49 -1.29 -1.54 -2.70 5.01 3.00 TTL 5.08 5.16 5.39 5.36 5.31 7.24 5.66 5.43 IhD 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 Semi-FOV 58.67 58.07 58.09 58.12 58.12 58.14 58.10 58.04 Fno 2.25 2.25 2.25 2.25 2.25 2.25 2.25 2.25

[0226] Table 24

[0227] In Examples 1-8 of the present application, each conditional formula satisfies the conditions of Table 25 below:

[0228]

[0229] Table 25

[0230] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the invention herein is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the inventive concept. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features having similar functions disclosed in this application.

Claims

1. An optical imaging lens, characterized in that: The optical imaging lens has five lenses with optical power, and the optical imaging lens has the following order from the object side to the image side: a first lens having negative optical power, wherein the object-side surface and the image-side surface are concave; a second lens having positive refractive power, its object-side surface being convex and its image-side surface being convex; The third lens has a negative optical power, with a convex object-side surface and a concave image-side surface; a fourth lens having optical power; a fifth lens having optical power; The fourth lens has positive refractive power and the fifth lens has negative refractive power, or the fourth lens has positive refractive power and the fifth lens has positive refractive power, or the fourth lens has negative refractive power and the fifth lens has positive refractive power; The effective focal length f1 of the first lens and half of the maximum field of view Semi-FOV of the optical imaging lens satisfy the following conditions: 9.25mm 2 ≤f1 2 *tan(Semi-FOV)≤14.94mm 2 ; The center thickness CT4 of the fourth lens on the optical axis and the edge thickness ET4 of the fourth lens satisfy the following: 3.28≤CT4 / ET4≤4.38; 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 center thickness CT4 of the fourth lens on the optical axis satisfy: (T23+T34)*2 <CT4; The on-axis distance TTL from the object side surface of the first lens to the imaging surface and the combined focal length f123 of the first lens, the second lens and the third lens satisfy the following: 2.12≤TTL / f123≤2.

85.

2. The optical imaging lens according to claim 1, wherein: The maximum field of view (FOV) of the optical imaging lens satisfies the following conditions: 116.08°≤FOV≤117.34°.

3. The optical imaging lens according to claim 1, wherein: The effective focal length f4 of the fourth lens and the effective focal length f5 of the fifth lens satisfy the following: 0.4≤|f5 / f4|≤1.

52.

4. The optical imaging lens according to claim 1, wherein: The relationship between half of the maximum field of view Semi-FOV of the optical imaging lens and the maximum effective radius DT11 of the object side of the first lens satisfies the following: 0.71≤tan(Semi-FOV) / DT11≤0.

81.

5. The optical imaging lens according to claim 1, wherein: The maximum effective radius DT42 of the fourth lens image side surface and the on-axis distance SAG42 between the intersection of the fourth lens image side surface and the optical axis and the effective radius vertex of the fourth lens image side surface satisfy: -2.39≤DT42 / SAG42≤-1.

39.

6. The optical imaging lens according to claim 1, wherein: The edge thickness ET5 of the fifth lens and the center thickness CT5 of the fifth lens on the optical axis satisfy the following: 1.71≤ET5 / CT5≤3.

36.

7. The optical imaging lens according to claim 1, wherein: The on-axis distance SAG41 between the intersection of the objective side of the fourth lens and the optical axis to the effective radius vertex of the objective side of the fourth lens and the on-axis distance SAG42 between the intersection of the image side of the fourth lens and the optical axis to the effective radius vertex of the image side of the fourth lens satisfy: 2.27≤|SAG42 / SAG41|≤6.

83.

8. The optical imaging lens according to claim 1, wherein: The distance BFL from the image side surface of the last lens element of the optical imaging lens to the imaging plane on the optical axis and the center thickness CT5 of the fifth lens element on the optical axis satisfy the following ratio: 1.45≤BFL / CT5≤4.

65.

9. The optical imaging lens according to claim 1, wherein: The center thickness CT4 of the fourth lens on the optical axis and the center thickness CT5 of the fifth lens on the optical axis satisfy: 0.2 <CT5 / CT4<0.7。 10. The optical imaging lens according to claim 1, wherein: 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 the following relationship: 0.35≤(R3+R4) / (R3-R4)≤0.54.

Images