Optical imaging lens

Abstract

The present application discloses an optical imaging lens, which includes, in order from the object side to the image side along the optical axis: a first lens with optical power; a second lens with optical power; a third lens with optical power, whose object side surface is convex and whose image side surface is concave; a fourth lens with optical power; and a fifth lens with optical power. Half of the diagonal length of the effective pixel area on the imaging surface of the optical imaging lens ImgH, half of the maximum field of view Semi-FOV of the optical imaging lens, and the distance TTL from the object side of the first lens to the imaging surface of the optical imaging lens on the optical axis meet the following conditional formulas: ImgH>3.5mm; 45°<Semi-FOV<60°; and TTL / ImgH<1.4.

Description

Technical Field

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

[0002] With the rapid development of portable electronic products such as smartphones, the multi-camera imaging technology of portable electronic products such as smartphones has also been improved. The market demand for optical imaging lenses with wide angle, good imaging quality and other characteristics is increasing.

[0003] On the one hand, with the continuous development of image sensor technologies such as CCD and CMOS, the number of pixels on the chip has increased and the size of a single pixel has decreased, and users have increasingly higher requirements for optical imaging lenses to meet high imaging performance. On the other hand, while ensuring that optical imaging lenses have high imaging performance, lens manufacturers are also pursuing how to reduce the number of optical imaging lens lenses to reduce costs. Therefore, how to improve the imaging quality of optical imaging lenses by designing the optical parameters, surface shape and optical focal length of optical imaging lenses is one of the problems that major lens manufacturers urgently need to solve. Summary of the invention

[0004] On one hand, the present application provides such an optical imaging lens, which includes, in order from the object side to the image side along the optical axis: a first lens with optical focal length; a second lens with optical focal length; a third lens with optical focal length, whose object side surface is convex and image side surface is concave; a fourth lens with optical focal length; and a fifth lens with optical focal length. Half of the diagonal length ImgH of the effective pixel area on the imaging surface of the optical imaging lens can satisfy: ImgH>3.5mm; half of the maximum field of view Semi-FOV of the optical imaging lens can satisfy: 45°<Semi-FOV<60°; and the distance TTL from the object side surface of the first lens to the imaging surface of the optical imaging lens on the optical axis and half of the diagonal length ImgH of the effective pixel area on the imaging surface of the optical imaging lens can satisfy: TTL / ImgH<1.4.

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

[0006] In one embodiment, the total effective focal length f of the optical imaging lens and the curvature radius R4 of the image-side surface of the second lens element may satisfy: -1<R4 / f<0.

[0007] In one embodiment, the second lens may have positive refractive power, and its image-side surface may be convex.

[0008] In one embodiment, the maximum effective radius DT12 of the image-side surface of the first lens and the maximum effective radius DT51 of the object-side surface of the fifth lens may satisfy: 0.2<DT12 / DT51<0.7.

[0009] In one embodiment, an edge thickness ET1 of the first lens and an edge thickness ET4 of the fourth lens may satisfy: 0.8<ET1 / ET4<1.3.

[0010] In one embodiment, the effective focal length f3 of the third lens and the combined focal length f45 of the fourth lens and the fifth lens may satisfy: -1.0<f3 / f45<-0.2.

[0011] In one embodiment, the effective focal length f2 of the second lens and the combined focal length f123 of the first lens, the second lens and the third lens may satisfy: 0.8<f2 / f123<1.3.

[0012] In one embodiment, a center thickness CT2 of the second lens on the optical axis and a maximum effective radius DT21 of the object-side surface of the second lens may satisfy: 0.3<CT2 / DT21<0.8.

[0013] In one embodiment, a distance SAG31 from an intersection of an edge thickness ET3 of the third lens and the object side surface of the third lens and the optical axis to a vertex of an effective radius of the object side surface of the third lens on the optical axis may satisfy: 0.2<ET3 / SAG31<0.7.

[0014] In one embodiment, the 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 on the optical axis and the distance SAG51 from the intersection of the object side surface of the fifth lens and the optical axis to the vertex of the effective radius of the object side surface of the fifth lens on the optical axis may satisfy: 0.3<SAG51 / SAG42<0.8.

[0015] In one implementation, a center thickness CT4 of the fourth lens on the optical axis and an effective focal length f4 of the fourth lens may satisfy: 0.2<CT4 / f4<0.7.

[0016] In one embodiment, a curvature radius R1 of the object-side surface of the first lens and a curvature radius R2 of the image-side surface of the first lens may satisfy: 0.5<R1 / R2<1.5.

[0017] In one embodiment, a curvature radius R5 of the object side surface of the third lens, a curvature radius R6 of the image side surface of the third lens, a curvature radius R7 of the object side surface of the fourth lens, and a curvature radius R8 of the image side surface of the fourth lens may satisfy: -1.5<(R7+R8) / (R5+R6)<0.5.

[0018] In one embodiment, a center thickness CT5 of the fifth lens on the optical axis and a curvature radius R10 of the image-side surface of the fifth lens may satisfy: 0.3<CT5 / R10<1.0.

[0019] In one embodiment, the center thickness CT1 of the first lens on the optical axis, the center thickness CT3 of the third lens on the optical axis, and the sum ΣAT of the spacing distances between any two adjacent lenses from the first lens to the fifth lens on the optical axis may satisfy: 0.2<(CT1+CT3) / ΣAT<0.7.

[0020] In one embodiment, the object-side surface of the first lens may be a convex surface, and the image-side surface may be a concave surface.

[0021] In one embodiment, the third lens may have negative optical power.

[0022] In one embodiment, the fourth lens may have positive refractive power, the object-side surface thereof may be concave, and the image-side surface thereof may be convex; and the fifth lens may have negative refractive power, and the image-side surface thereof may be concave.

[0023] On the other hand, the present application provides such an optical imaging lens, which includes, in order from the object side to the image side along the optical axis: a first lens with optical power, whose object side surface is convex and whose image side surface is concave; a second lens with optical power; a third lens with negative optical power; a fourth lens with positive optical power, whose object side surface is concave and whose image side surface is convex; and a fifth lens with negative optical power, whose image side surface is concave. Semi-FOV, half of the maximum field of view angle of the optical imaging lens, can satisfy: 45°<Semi-FOV<60°.

[0024] The present application adopts multiple (for example, five) lenses, and through the reasonable allocation of the optical focal length, surface shape, center thickness of each lens, and axial spacing between each lens, the above-mentioned optical imaging lens has at least one beneficial effect of ultra-thinness, wide angle, good imaging quality, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0026] Figure 1 A schematic structural diagram of an optical imaging lens according to Embodiment 1 of the present application is shown;

[0027] FIG. 2A to FIG. 2D The axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the optical imaging lens of Example 1 are respectively shown;

[0028] Figure 3A schematic structural diagram of an optical imaging lens according to Embodiment 2 of the present application is shown;

[0029] FIG. 4A to FIG. 4D The axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the optical imaging lens of Example 2 are respectively shown;

[0030] Figure 5 A schematic structural diagram of an optical imaging lens according to Embodiment 3 of the present application is shown;

[0031] FIG. 6A to FIG. 6D The axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the optical imaging lens of Example 3 are respectively shown;

[0032] Figure 7 A schematic structural diagram of an optical imaging lens according to Embodiment 4 of the present application is shown;

[0033] FIG. 8A to FIG. 8D The axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the optical imaging lens of Example 4 are respectively shown;

[0034] Fig. 9 A schematic structural diagram of an optical imaging lens according to Embodiment 5 of the present application is shown;

[0035] FIG. 10A to FIG. 10D The axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the optical imaging lens of Example 5 are respectively shown;

[0036] Fig.11 A schematic structural diagram of an optical imaging lens according to Embodiment 6 of the present application is shown; and

[0037] FIG. 12A to FIG. 12D The axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the optical imaging lens of Example 6 are respectively shown. DETAILED DESCRIPTION

[0038] In order to better understand the present application, a more detailed description will be made of various aspects of the present application with reference to the accompanying drawings. It should be understood that these detailed descriptions are only descriptions of exemplary embodiments of the present application, and are not intended to limit the scope of the present application in any way. Throughout the specification, the same reference numerals refer to the same elements. The expression "and / or" includes any and all combinations of one or more of the associated listed items.

[0039] 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.

[0040] In the drawings, the thickness, size and shape of the lenses have been slightly exaggerated for ease of explanation. Specifically, the shapes of the spherical or aspherical surfaces shown in the drawings are shown by way of example. That is, the shapes of the spherical or aspherical surfaces are not limited to the shapes of the spherical or aspherical surfaces shown in the drawings. The drawings are only examples and are not drawn strictly to scale.

[0041] In this article, the paraxial region refers to the region near the optical axis. If the lens surface is convex and the position of the convex surface is not defined, it means that the lens surface is convex at least in the paraxial region; if the lens surface is concave and the position of the concave surface is not defined, it means that the lens surface is concave at least in the paraxial region. The surface of each lens closest to the object is called the object side of the lens, and the surface of each lens closest to the imaging plane is called the image side of the lens.

[0042] It should also be understood that the terms "comprises", "including", "having", "includes" and / or "comprising", when used in this specification, indicate the presence of the stated features, elements and / or components, but do not exclude the presence or addition of one or more other features, elements, components and / or combinations thereof. In addition, when expressions such as "at least one of..." appear after a list of listed features, they modify the entire listed features rather than modifying the individual elements in the list. In addition, when describing embodiments of the present application, "may" is used to mean "one or more embodiments of the present application". And, the term "exemplary" is intended to refer to an example or illustration.

[0043] Unless otherwise defined, all terms (including technical terms and scientific terms) used in this article have the same meaning as commonly understood by ordinary technicians in the field to which this application belongs. It should also be understood that terms (such as terms defined in commonly used dictionaries) should be interpreted as having the same meaning as their meaning in the context of the relevant technology, and will not be interpreted in an idealized or overly formal sense unless explicitly defined in this article.

[0044] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0045] The features, principles and other aspects of the present application are described in detail below.

[0046] The optical imaging lens according to the exemplary embodiment of the present application may include five lenses with optical power, namely a first lens, a second lens, a third lens, a fourth lens and a fifth lens. The five lenses are arranged in sequence from the object side to the image side along the optical axis. Any two adjacent lenses from the first lens to the fifth lens may have a spacing distance between them.

[0047] In an exemplary embodiment, the first lens may have positive or negative optical power; the second lens may have positive or negative optical power; the third lens may have positive or negative optical power, and its object side surface may be convex and its image side surface may be concave; the fourth lens may have positive or negative optical power; and the fifth lens may have positive or negative optical power.

[0048] The convex-concave surface design of the third lens is conducive to ensuring that the main light of the imaging system has a smaller incident angle when it is incident on the imaging surface, thereby improving the relative illumination of the imaging surface.

[0049] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: ImgH>3.5mm, where ImgH is half of the diagonal length of the effective pixel area on the imaging plane of the optical imaging lens. More specifically, ImgH may further satisfy: ImgH>3.8mm. Satisfying ImgH>3.5mm is conducive to achieving the characteristics of a large image plane.

[0050] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 45°<Semi-FOV<60°, where Semi-FOV is half of the maximum field of view of the optical imaging lens. More specifically, Semi-FOV may further satisfy: 54°<Semi-FOV<55°. Satisfying 45°<Semi-FOV<60° is conducive to achieving wide-angle characteristics.

[0051] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: TTL / ImgH<1.4, wherein TTL is the distance from the object side of the first lens to the imaging plane of the optical imaging lens on the optical axis, and ImgH is half the diagonal length of the effective pixel area on the imaging plane of the optical imaging lens. Satisfying TTL / ImgH<1.4 is conducive to achieving ultra-thin characteristics.

[0052] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: -1<R4 / f<0, where f is the total effective focal length of the optical imaging lens, and R4 is the radius of curvature of the image side surface of the second lens. More specifically, R4 and f may further satisfy: -0.7<R4 / f<-0.5. When -1<R4 / f<0 is satisfied, the off-axis aberration of the optical lens may be corrected by the fourth lens to improve the imaging quality.

[0053] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 0.2<DT12 / DT51<0.7, wherein DT12 is the maximum effective radius of the image side of the first lens, and DT51 is the maximum effective radius of the object side of the fifth lens. More specifically, DT12 and DT51 may further satisfy: 0.3<DT12 / DT51<0.5. Satisfying 0.2<DT12 / DT51<0.7 is conducive to improving the stability of lens assembly and ensuring that the optical imaging lens has a higher production yield.

[0054] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 0.8<ET1 / ET4<1.3, wherein ET1 is the edge thickness of the first lens, and ET4 is the edge thickness of the fourth lens. More specifically, ET1 and ET4 may further satisfy: 0.9<ET1 / ET4<1.1. Satisfying 0.8<ET1 / ET4<1.3 is conducive to ensuring the molding processability of the lens and avoiding deformation of the lens during the molding process.

[0055] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: -1.0<f3 / f45<-0.2, where f3 is the effective focal length of the third lens, and f45 is the combined focal length of the fourth lens and the fifth lens. More specifically, f3 and f45 may further satisfy: -0.9<f3 / f45<-0.4. Satisfying -1.0<f3 / f45<-0.2 can effectively reduce the optical sensitivity of the third lens, the fourth lens, and the fifth lens, which is conducive to mass production.

[0056] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 0.8<f2 / f123<1.3, wherein f2 is the effective focal length of the second lens, and f123 is the combined focal length of the first lens, the second lens, and the third lens. More specifically, f2 and f123 may further satisfy: 0.8<f2 / f123<1.0. Satisfying 0.8<f2 / f123<1.3 is conducive to controlling the aberration of the lens, especially the astigmatism when the field of view angle increases.

[0057] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 0.3<CT2 / DT21<0.8, wherein CT2 is the center thickness of the second lens on the optical axis, and DT21 is the maximum effective radius of the object side of the second lens. More specifically, CT2 and DT21 may further satisfy: 0.4<CT2 / DT21<0.6. Satisfying 0.3<CT2 / DT21<0.8 is conducive to reducing the thickness sensitivity of the second lens, improving imaging performance, and reducing axial aberrations.

[0058] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 0.2<ET3 / SAG31<0.7, where ET3 is the edge thickness of the third lens, and SAG31 is the distance from the intersection of the object side surface of the third lens and the optical axis to the vertex of the effective radius of the object side surface of the third lens on the optical axis. Satisfying 0.2<ET3 / SAG31<0.7 can make the third lens easy to injection mold, improve the processability of the imaging system, and at the same time ensure that the optical imaging lens has good imaging quality.

[0059] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 0.3<SAG51 / SAG42<0.8, wherein SAG42 is the distance from 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 on the optical axis, and SAG51 is the distance from the intersection of the object side surface of the fifth lens and the optical axis to the effective radius vertex of the object side surface of the fifth lens on the optical axis. More specifically, SAG51 and SAG42 may further satisfy: 0.4<SAG51 / SAG42<0.7. Satisfying 0.3<SAG51 / SAG42<0.8 is conducive to controlling the incident angle of light of the fourth lens and the fifth lens, and improving the matching degree between the lens and the imaging chip.

[0060] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 0.2<CT4 / f4<0.7, wherein CT4 is the center thickness of the fourth lens on the optical axis, and f4 is the effective focal length of the fourth lens. More specifically, CT4 and f4 may further satisfy: 0.3<CT4 / f4<0.6. Satisfying 0.2<CT4 / f4<0.7 is conducive to reducing the difficulty of lens processing, and at the same time can reduce the angle between the main light and the optical axis when it is incident on the imaging surface, thereby improving the relative illumination of the imaging surface.

[0061] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 0.5<R1 / R2<1.5, wherein R1 is the radius of curvature of the object side surface of the first lens, and R2 is the radius of curvature of the image side surface of the first lens. More specifically, R1 and R2 may further satisfy: 0.6<R1 / R2<1.1. Satisfying 0.5<R1 / R2<1.5 is conducive to improving the object side incident angle of the molding lens and achieving wide-angle characteristics.

[0062] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: -1.5<(R7+R8) / (R5+R6)<0.5, wherein R5 is the radius of curvature of the object side surface of the third lens, R6 is the radius of curvature of the image side surface of the third lens, R7 is the radius of curvature of the object side surface of the fourth lens, and R8 is the radius of curvature of the image side surface of the fourth lens. More specifically, R7, R8, R5, and R6 may further satisfy: -1.2<(R7+R8) / (R5+R6)<-0.8. Satisfying -1.5<(R7+R8) / (R5+R6)<0.5 is conducive to dispersing the light collected by the optical imaging lens, balancing the system spherical aberration, and constraining the balancing ability of the third lens and the fourth lens in the entire optical system.

[0063] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 0.3<CT5 / R10<1.0, wherein CT5 is the center thickness of the fifth lens on the optical axis, and R10 is the radius of curvature of the image side surface of the fifth lens. More specifically, CT5 and R10 may further satisfy: 0.5<CT5 / R10<0.8. Satisfying 0.3<CT5 / R10<1.0 can reduce the optical sensitivity of the fifth lens and improve the imaging clarity.

[0064] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 0.2<(CT1+CT3) / ΣAT<0.7, wherein CT1 is the center thickness of the first lens on the optical axis, CT3 is the center thickness of the third lens on the optical axis, and ΣAT is the sum of the spacing distances between any two adjacent lenses from the first lens to the fifth lens on the optical axis. More specifically, CT1, CT3 and ΣAT may further satisfy: 0.3<(CT1+CT3) / ΣAT<0.7. Satisfying 0.2<(CT1+CT3) / ΣAT<0.7 is conducive to balancing the on-axis spacing distances between the lenses, effectively reducing the thickness sensitivity of the lens, correcting the field curvature, and ensuring the yield rate of the lens assembly.

[0065] In an exemplary embodiment, the object side surface of the first lens may be a convex surface, and the image side surface may be a concave surface. This convex-concave surface design of the first lens is conducive to expanding the angle of obtaining object side information and improving the incident angle.

[0066] In an exemplary embodiment, the third lens may have negative power. Controlling the power of the third lens to be negative is conducive to reasonably allocating the power of the system so that the positive and negative spherical aberrations of the front lens group and the rear lens group offset each other.

[0067] In an exemplary embodiment, the fourth lens may have positive power, and its object side surface may be concave, and its image side surface may be convex; meanwhile, the fifth lens may have negative power, and its image side surface may be concave. By controlling the power of the fourth lens to be positive, the object side surface to be concave, and the image side surface to be convex, and controlling the power of the fifth lens to be negative, and the image side surface to be concave, the effect of smoothing the power, spherical aberration, chromatic aberration, and dispersion of the entire lens group can be achieved, and the angle between the main light and the optical axis when the main light is incident on the imaging surface can be reduced, thereby improving the illumination of the imaging surface.

[0068] In an exemplary embodiment, the first lens may have positive optical power or negative optical power; the second lens may have positive optical power and its image side surface may be convex; the third lens may have positive optical power or negative optical power, its object side surface may be convex and its image side surface may be concave; the fourth lens may have positive optical power or negative optical power; and the fifth lens may have positive optical power or negative optical power.

[0069] Controlling the optical focal length of the second lens to be positive while ensuring that its image side surface is convex is beneficial to balancing the high-order aberrations produced by the lens, so that each field of view of the system has a smaller aberration; setting the object side surface of the third lens to be convex and the image side surface to be concave is beneficial to ensuring that the main light of the imaging system has a smaller incident angle when it is incident on the imaging surface, thereby improving the relative illumination on the imaging surface.

[0070] In an exemplary embodiment, the optical imaging lens according to the present application further includes an aperture provided between the object side and the first lens. Optionally, the optical imaging lens may further include a filter for correcting color deviation and / or a protective glass for protecting a photosensitive element located on the imaging surface.

[0071] The optical imaging lens according to the above-mentioned embodiment of the present application may use multiple lenses, such as the five lenses described above. By reasonably allocating the focal length, surface shape, center thickness of each lens, and axial spacing between each lens, etc., the incident light can be effectively converged, the total length of the optical imaging lens can be reduced, and the processability of the optical imaging lens can be improved, so that the structure of each lens is more compact, the optical imaging lens is more conducive to production and processing, and has higher practicality. Through the above configuration, the optical imaging lens according to the exemplary embodiment of the present application can have characteristics such as large image surface, wide angle, ultra-thin, and good imaging quality.

[0072] In the embodiment of the present application, at least one of the mirror surfaces of each lens is an aspherical mirror surface, that is, at least one of the mirror surfaces from the object side of the first lens to the image side of the fifth lens is an aspherical mirror surface. The characteristic of the aspherical lens is that the curvature changes continuously from the center of the lens to the periphery of the lens. Unlike a spherical lens with a constant curvature from the center of the lens to the periphery of the lens, an aspherical lens has a better curvature radius characteristic, and has the advantages of improving distortion aberration and improving astigmatism aberration. After adopting an aspherical lens, the aberration occurring during imaging can be eliminated as much as possible, thereby improving the imaging quality. Optionally, at least one of the object side and image side of each lens in the first lens, the second lens, the third lens, the fourth lens and the fifth lens is an aspherical mirror surface. Optionally, the object side and image side of each lens in the first lens, the second lens, the third lens, the fourth lens and the fifth lens are all aspherical mirror surfaces.

[0073] However, those skilled in the art should understand that, without departing from the technical solution claimed in the present application, the number of lenses constituting the optical imaging lens can be changed to obtain the various results and advantages described in this specification. For example, although five lenses are described as an example in the embodiments, the optical imaging lens is not limited to including five lenses. If necessary, the optical imaging lens may also include other numbers of lenses.

[0074] Specific embodiments of the optical imaging lens applicable to the above-mentioned embodiments are further described below with reference to the accompanying drawings.

[0075] Example 1

[0076] The following reference Figures 1 to 2D An optical imaging lens according to Embodiment 1 of the present application is described. Figure 1 A schematic structural diagram of an optical imaging lens according to Embodiment 1 of the present application is shown.

[0077] like Figure 1 As shown, the optical imaging lens includes, from the object side to the image side, an aperture STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a filter E6 and an imaging surface S13.

[0078] The first lens E1 has positive focal power, its object side surface S1 is convex, and the image side surface S2 is concave. The second lens E2 has positive focal power, its object side surface S3 is convex, and the image side surface S4 is convex. The third lens E3 has negative focal power, its object side surface S5 is convex, and the image side surface S6 is concave. The fourth lens E4 has positive focal power, its object side surface S7 is concave, and the image side surface S8 is convex. The fifth lens E5 has negative focal power, its object side surface S9 is convex, and the image side surface S10 is concave. The filter E6 has an object side surface S11 and an image side surface S12. The light from the object passes through each surface S1 to S12 in sequence and is finally imaged on the imaging surface S13.

[0079] Table 1 shows the basic parameters of the optical imaging lens of Example 1, wherein the units of the radius of curvature, thickness / distance and focal length are all millimeters (mm).

[0080]

[0081] Table 1

[0082] In this example, the total effective focal length f of the optical imaging lens is 3.28 mm, the total length TTL of the optical imaging lens (i.e., the distance from the object-side surface S1 of the first lens E1 to the imaging surface S13 of the optical imaging lens on the optical axis) is 5.15 mm, half of the diagonal length ImgH of the effective pixel area on the imaging surface S13 of the optical imaging lens is 3.86 mm, half of the maximum field of view Semi-FOV of the optical imaging lens is 54.6°, and the ratio f / EPD of the total effective focal length f of the optical imaging lens to the entrance pupil diameter EPD of the optical imaging lens is 2.22.

[0083] In Example 1, 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, and the surface shape x of each aspherical lens can be defined by but not limited to the following aspherical surface formula:

[0084]

[0085] Wherein, x is the distance vector height from the vertex of the aspheric surface when the aspheric surface is at a height of h along the optical axis; c is the paraxial curvature of the aspheric surface, c=1 / R (i.e., the paraxial curvature c is the reciprocal of the curvature radius R in Table 1 above); k is the cone coefficient; Ai is the correction coefficient of the i-th order of the aspheric surface. Table 2 below gives the high-order coefficients A4, A6, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19, A20, A21, A22, A23, A24, A25, A26, A27, A28, A29, A30, A31, A32, A33, A34, A35, A36, A37, A38, A39, 10 , A 12 , A 14 , A 16 , A 18 and A 20 .

[0086] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 -3.2118E-02 -1.6676E-01 1.8895E-01 -6.5825E-01 3.3649E+00 -1.2820E+01 2.8857E+01 -3.4053E+01 1.6276E+01 S2 -1.5835E-01 -1.6882E-01 -5.3242E-03 8.0857E-01 -3.2567E+00 6.8973E+00 -7.4627E+00 3.6611E+00 -5.5871E-01 S3 -1.0671E-02 -1.6205E-01 -3.8634E-02 8.1883E-01 -2.8413E+00 6.0860E+00 -6.9391E+00 3.8625E+00 -8.3411E-01 S4 -1.6886E-02 -8.1834E-02 -2.1641E-02 5.1582E-01 -1.3699E+00 2.1050E+00 -1.8260E+00 8.0543E-01 -1.4182E-01 S5 9.1109E-03 -1.0844E-01 1.3864E-01 -1.8577E-01 2.9021E-01 -3.0322E-01 1.7859E-01 -5.5316E-02 7.0605E-03 S6 -5.7269E-02 8.7034E-02 -1.9038E-01 2.5397E-01 -1.9546E-01 8.8811E-02 -2.3434E-02 3.2388E-03 -1.6816E-04 S7 1.2953E-02 -2.1215E-02 8.2905E-03 7.5801E-02 -1.2841E-01 1.0209E-01 -4.4663E-02 1.0300E-02 -9.8274E-04 S8 8.9607E-02 -1.5785E-01 2.1450E-01 -2.4223E-01 1.9976E-01 -1.0849E-01 3.6283E-02 -6.6701E-03 5.0981E-04 S9 -8.8815E-02 1.7022E-02 2.1575E-03 -4.2228E-03 1.9057E-03 -5.1265E-04 9.0416E-05 -9.2842E-06 4.0577E-07 S10 -4.4973E-02 1.6613E-02 -5.0245E-03 1.0996E-03 -1.7236E-04 1.8507E-05 -1.2819E-06 5.1554E-08 -9.1688E-10

[0087] Table 2

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

[0089] Example 2

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

[0091] like Figure 3 As shown, the optical imaging lens includes, 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.

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

[0093] In this example, the total effective focal length f of the optical imaging lens is 3.27 mm, the total length TTL of the optical imaging lens is 5.14 mm, half of the diagonal length ImgH of the effective pixel area on the imaging surface S13 of the optical imaging lens is 3.86 mm, half of the maximum field of view Semi-FOV of the optical imaging lens is 54.7°, and the ratio f / EPD of the total effective focal length f of the optical imaging lens to the entrance pupil diameter EPD of the optical imaging lens is 2.22.

[0094] Table 3 shows the basic parameters of the optical imaging lens of Example 2, wherein the units of the radius of curvature, thickness / distance and focal length are all in millimeters (mm). Table 4 shows the high-order coefficients of each aspherical mirror surface that can be used in Example 2, wherein the surface type of each aspherical surface can be defined by the formula (1) given in the above Example 1.

[0095]

[0096] Table 3

[0097] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 -3.1051E-02 -1.6984E-01 7.4438E-03 5.1736E-01 -2.0808E-01 -7.6753E+00 2.7287E+01 -3.8035E+01 1.9574E+01 S2 -1.5852E-01 -2.0846E-01 6.4218E-01 -3.3060E+00 1.1745E+01 -2.6175E+01 3.5919E+01 -2.7459E+01 8.8451E+00 S3 -1.9808E-02 -1.5523E-01 -9.9084E-03 6.1914E-01 -2.1666E+00 4.4903E+00 -4.7579E+00 2.3759E+00 -4.4417E-01 S4 -1.5929E-02 -4.8536E-02 -2.6065E-01 1.1769E+00 -2.4762E+00 3.1948E+00 -2.4185E+00 9.6788E-01 -1.6001E-01 S5 1.0125E-02 -8.3496E-02 3.7702E-02 2.0677E-02 1.5956E-02 -6.1821E-02 4.6284E-02 -1.4755E-02 1.7635E-03 S6 -6.1743E-02 1.1045E-01 -2.4109E-01 3.1944E-01 -2.5097E-01 1.2115E-01 -3.5814E-02 6.0066E-03 -4.3938E-04 S7 1.3741E-02 -3.1121E-02 3.1528E-02 2.7675E-02 -6.3830E-02 5.1231E-02 -2.1731E-02 4.8033E-03 -4.3732E-04 S8 1.0198E-01 -1.7545E-01 2.2187E-01 -2.2582E-01 1.6815E-01 -8.3679E-02 2.6006E-02 -4.4888E-03 3.2403E-04 S9 -8.4814E-02 1.2444E-03 1.9193E-02 -1.5350E-02 6.5105E-03 -1.7158E-03 2.7980E-04 -2.5596E-05 9.9578E-07 S10 -4.4935E-02 1.5271E-02 -3.9665E-03 6.8187E-04 -7.4327E-05 4.4096E-06 -6.7770E-08 -5.9986E-09 2.3811E-10

[0098] Table 4

[0099] Figure 4A The axial chromatic aberration curve of the optical imaging lens of Example 2 is shown, which indicates that light of different wavelengths deviates from the focal point behind the lens. Figure 4B The astigmatism curve of the optical imaging lens of Example 2 is shown, which represents the meridional image curvature and the sagittal image curvature. Figure 4C The distortion curve of the optical imaging lens of Example 2 is shown, which represents the distortion magnitude values ​​corresponding to different field angles. Figure 4D The magnification chromatic aberration curve of the optical imaging lens of Example 2 is shown, which represents the deviation of different image heights on the imaging surface after the light passes through the lens. FIG. 4A to FIG. 4D It can be seen that the optical imaging lens provided in Example 2 can achieve good imaging quality.

[0100] Example 3

[0101] The following reference Figures 5 to 6D An optical imaging lens according to Embodiment 3 of the present application is described. Figure 5 A schematic structural diagram of an optical imaging lens according to Embodiment 3 of the present application is shown.

[0102] like Figure 5 As shown, the optical imaging lens includes, from the object side to the image side, an aperture STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a filter E6 and an imaging surface S13.

[0103] The first lens E1 has negative optical power, and its object side surface S1 is convex, and its image side surface S2 is concave. The second lens E2 has positive optical power, and its object side surface S3 is concave, and its image side surface S4 is convex. The third lens E3 has negative optical power, and its object side surface S5 is convex, and its image side surface S6 is concave. The fourth lens E4 has positive optical power, and its object side surface S7 is concave, and its image side surface S8 is convex. The fifth lens E5 has negative optical power, and its object side surface S9 is convex, and its image side surface S10 is concave. The filter E6 has an object side surface S11 and an image side surface S12. The light from the object passes through each surface S1 to S12 in sequence and is finally imaged on the imaging surface S13.

[0104] In this example, the total effective focal length f of the optical imaging lens is 3.29 mm, the total length TTL of the optical imaging lens is 5.15 mm, half of the diagonal length ImgH of the effective pixel area on the imaging surface S13 of the optical imaging lens is 3.86 mm, half of the maximum field of view Semi-FOV of the optical imaging lens is 54.5°, and the ratio f / EPD of the total effective focal length f of the optical imaging lens to the entrance pupil diameter EPD of the optical imaging lens is 2.22.

[0105] Table 5 shows the basic parameters of the optical imaging lens of Example 3, wherein the units of the radius of curvature, thickness / distance and focal length are all in millimeters (mm). Table 6 shows the high-order coefficients of each aspherical mirror surface that can be used in Example 3, wherein the surface type of each aspherical surface can be defined by the formula (1) given in the above Example 1.

[0106]

[0107] Table 5

[0108]

[0109]

[0110] Table 6

[0111] Fig. 6A The axial chromatic aberration curve of the optical imaging lens of Example 3 is shown, which indicates the deviation of light of different wavelengths from the focal point behind the lens. Figure 6B The astigmatism curve of the optical imaging lens of Example 3 is shown, which represents the meridional image curvature and the sagittal image curvature. Figure 6C The distortion curve of the optical imaging lens of Example 3 is shown, which represents the distortion magnitude values ​​corresponding to different field angles. Fig.6D The magnification chromatic aberration curve of the optical imaging lens of Example 3 is shown, which represents the deviation of different image heights on the imaging surface after the light passes through the lens. FIG. 6A to FIG. 6D It can be seen that the optical imaging lens provided in Example 3 can achieve good imaging quality.

[0112] Example 4

[0113] The following reference Figures 7 to 8D An optical imaging lens according to Embodiment 4 of the present application is described. Figure 7 A schematic structural diagram of an optical imaging lens according to Embodiment 4 of the present application is shown.

[0114] like Figure 7 As shown, the optical imaging lens includes, from the object side to the image side, an aperture STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a filter E6 and an imaging surface S13.

[0115] The first lens E1 has negative optical power, and its object side surface S1 is convex, and its image side surface S2 is concave. The second lens E2 has positive optical power, and its object side surface S3 is convex, and its image side surface S4 is convex. The third lens E3 has negative optical power, and its object side surface S5 is convex, and its image side surface S6 is concave. The fourth lens E4 has positive optical power, and its object side surface S7 is concave, and its image side surface S8 is convex. The fifth lens E5 has negative optical power, and its object side surface S9 is convex, and its image side surface S10 is concave. The filter E6 has an object side surface S11 and an image side surface S12. The light from the object passes through each surface S1 to S12 in sequence and is finally imaged on the imaging surface S13.

[0116] In this example, the total effective focal length f of the optical imaging lens is 3.31 mm, the total length TTL of the optical imaging lens is 5.14 mm, half of the diagonal length ImgH of the effective pixel area on the imaging surface S13 of the optical imaging lens is 3.86 mm, half of the maximum field of view Semi-FOV of the optical imaging lens is 54.3°, and the ratio f / EPD of the total effective focal length f of the optical imaging lens to the entrance pupil diameter EPD of the optical imaging lens is 2.22.

[0117] Table 7 shows the basic parameters of the optical imaging lens of Example 4, wherein the units of the radius of curvature, thickness / distance and focal length are all in millimeters (mm). Table 8 shows the high-order coefficients of each aspherical mirror surface that can be used in Example 4, wherein the surface type of each aspherical surface can be defined by the formula (1) given in the above Example 1.

[0118]

[0119]

[0120] Table 7

[0121] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 -4.0114E-02 -8.6876E-02 -5.5325E-01 1.1500E+00 9.9341E+00 -6.1901E+01 1.4861E+02 -1.6935E+02 7.5897E+01 S2 -1.4184E-01 -4.3075E-01 2.2937E+00 -1.0401E+01 3.0163E+01 -5.5018E+01 6.1508E+01 -3.8294E+01 9.9730E+00 S3 -1.4796E-02 6.2392E-02 -1.2241E+00 4.9990E+00 -1.1892E+01 1.7442E+01 -1.4889E+01 6.6803E+00 -1.2062E+00 S4 -4.3855E-02 -1.9658E-03 1.0175E-01 -8.1024E-01 2.3283E+00 -3.5380E+00 3.0868E+00 -1.4450E+00 2.7761E-01 S5 1.7396E-02 -3.8921E-02 -1.1284E-01 2.8508E-01 -2.9163E-01 1.7272E-01 -6.2376E-02 1.2799E-02 -1.1576E-03 S6 -3.4670E-02 6.4052E-02 -1.9396E-01 2.9704E-01 -2.5856E-01 1.3835E-01 -4.5350E-02 8.3542E-03 -6.6129E-04 S7 1.5323E-02 6.9485E-03 -5.1947E-02 1.1287E-01 -1.2035E-01 7.6304E-02 -2.8801E-02 5.9535E-03 -5.2049E-04 S8 9.4241E-02 -1.3601E-01 1.7650E-01 -2.0451E-01 1.6953E-01 -9.0312E-02 2.9140E-02 -5.1176E-03 3.7177E-04 S9 -1.1109E-01 4.1947E-02 -3.4016E-02 2.2602E-02 -9.4516E-03 2.3656E-03 -3.4100E-04 2.5994E-05 -8.0967E-07 S10 -4.1082E-02 9.2634E-03 -1.5939E-03 2.2443E-04 -3.6491E-05 5.1723E-06 -4.6627E-07 2.3507E-08 -5.1780E-10

[0122] Table 8

[0123] Fig. 8A The axial chromatic aberration curve of the optical imaging lens of Example 4 is shown, which indicates the deviation of light of different wavelengths from the focal point behind the lens. Figure 8B The astigmatism curve of the optical imaging lens of Example 4 is shown, which represents the meridional image curvature and the sagittal image curvature. Figure 8C The distortion curve of the optical imaging lens of Example 4 is shown, which represents the distortion magnitude values ​​corresponding to different field angles. Fig.8D The magnification chromatic aberration curve of the optical imaging lens of Example 4 is shown, which represents the deviation of different image heights on the imaging surface after the light passes through the lens. FIG. 8A to FIG. 8D It can be seen that the optical imaging lens provided in Example 4 can achieve good imaging quality.

[0124] Example 5

[0125] The following reference Figures 9 to 10D An optical imaging lens according to Embodiment 5 of the present application is described. Fig. 9 A schematic structural diagram of an optical imaging lens according to Embodiment 5 of the present application is shown.

[0126] like Fig. 9 As shown, the optical imaging lens includes, from the object side to the image side, an aperture STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a filter E6 and an imaging surface S13.

[0127] The first lens E1 has positive focal power, and its object side surface S1 is convex, and its image side surface S2 is concave. The second lens E2 has positive focal power, and its object side surface S3 is convex, and its image side surface S4 is convex. The third lens E3 has negative focal power, and its object side surface S5 is convex, and its image side surface S6 is concave. The fourth lens E4 has positive focal power, and its object side surface S7 is concave, and its image side surface S8 is convex. The fifth lens E5 has negative focal power, and its object side surface S9 is concave, and its image side surface S10 is concave. The filter E6 has an object side surface S11 and an image side surface S12. The light from the object passes through each surface S1 to S12 in sequence and is finally imaged on the imaging surface S13.

[0128] In this example, the total effective focal length f of the optical imaging lens is 3.29 mm, the total length TTL of the optical imaging lens is 5.15 mm, half of the diagonal length ImgH of the effective pixel area on the imaging surface S13 of the optical imaging lens is 3.86 mm, half of the maximum field of view Semi-FOV of the optical imaging lens is 54.4°, and the ratio f / EPD of the total effective focal length f of the optical imaging lens to the entrance pupil diameter EPD of the optical imaging lens is 2.22.

[0129] Table 9 shows the basic parameters of the optical imaging lens of Example 5, wherein the units of the radius of curvature, thickness / distance and focal length are all in millimeters (mm). Table 10 shows the high-order coefficients of each aspherical mirror surface that can be used in Example 5, wherein the surface type of each aspherical surface can be defined by the formula (1) given in the above Example 1.

[0130]

[0131] Table 9

[0132] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 -3.1283E-02 -1.3128E-01 -4.8472E-01 4.1786E+00 -1.6631E+01 3.7434E+01 -4.7041E+01 2.9423E+01 -6.3527E+00 S2 -1.4952E-01 -2.3962E-01 3.5517E-01 -9.5915E-01 2.5704E+00 -5.6054E+00 9.3358E+00 -8.9156E+00 3.4159E+00 S3 -1.4161E-02 -5.8187E-02 -8.6041E-01 3.9106E+00 -1.0186E+01 1.6897E+01 -1.6212E+01 8.0403E+00 -1.5840E+00 S4 -1.0968E-02 -1.8447E-01 5.9070E-01 -1.5244E+00 2.6418E+00 -2.8032E+00 1.8594E+00 -7.4480E-01 1.3687E-01 S5 2.1194E-02 -1.4597E-01 2.5325E-01 -4.6947E-01 7.1806E-01 -6.8569E-01 3.7943E-01 -1.1291E-01 1.4066E-02 S6 -4.5641E-02 5.4110E-02 -1.2573E-01 1.4285E-01 -6.2327E-02 -1.0089E-02 2.0061E-02 -7.1644E-03 8.7668E-04 S7 -2.1088E-02 1.1874E-01 -2.7963E-01 4.6762E-01 -4.8337E-01 3.0981E-01 -1.1963E-01 2.5461E-02 -2.2983E-03 S8 2.3598E-01 -4.6606E-01 6.3991E-01 -6.6408E-01 4.9017E-01 -2.4121E-01 7.4169E-02 -1.2732E-02 9.2292E-04 S9 5.6112E-02 -1.2429E-01 1.0397E-01 -5.8085E-02 2.2303E-02 -5.8678E-03 1.0053E-03 -9.9197E-05 4.2115E-06 S10 -1.5065E-02 -5.2994E-03 4.6713E-03 -1.7236E-03 3.7475E-04 -5.1194E-05 4.3119E-06 -2.0450E-07 4.1765E-09

[0133] Table 10

[0134] Fig. 10A The axial chromatic aberration curve of the optical imaging lens of Example 5 is shown, which indicates the deviation of light of different wavelengths from the focal point behind the lens. Fig. 10B The astigmatism curve of the optical imaging lens of Example 5 is shown, which represents the meridional image curvature and the sagittal image curvature. Fig. 10C The distortion curve of the optical imaging lens of Example 5 is shown, which represents the distortion magnitude values ​​corresponding to different field angles. Fig. 10D The magnification chromatic aberration curve of the optical imaging lens of Example 5 is shown, which represents the deviation of different image heights on the imaging surface after the light passes through the lens. FIG. 10A to FIG. 10D It can be seen that the optical imaging lens provided in Example 5 can achieve good imaging quality.

[0135] Example 6

[0136] The following reference Figures 11 to 12D An optical imaging lens according to Embodiment 6 of the present application is described. Fig.11 A schematic structural diagram of an optical imaging lens according to Example 6 of the present application is shown.

[0137] like Fig.11 As shown, the optical imaging lens includes, from the object side to the image side, an aperture STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a filter E6 and an imaging surface S13.

[0138] The first lens E1 has positive focal power, its object side surface S1 is convex, and the image side surface S2 is concave. The second lens E2 has positive focal power, its object side surface S3 is concave, and the image side surface S4 is convex. The third lens E3 has negative focal power, its object side surface S5 is convex, and the image side surface S6 is concave. The fourth lens E4 has positive focal power, its object side surface S7 is concave, and the image side surface S8 is convex. The fifth lens E5 has negative focal power, its object side surface S9 is concave, and the image side surface S10 is concave. The filter E6 has an object side surface S11 and an image side surface S12. The light from the object passes through each surface S1 to S12 in sequence and is finally imaged on the imaging surface S13.

[0139] In this example, the total effective focal length f of the optical imaging lens is 3.29 mm, the total length TTL of the optical imaging lens is 5.14 mm, half of the diagonal length ImgH of the effective pixel area on the imaging surface S13 of the optical imaging lens is 3.86 mm, half of the maximum field of view Semi-FOV of the optical imaging lens is 54.5°, and the ratio f / EPD of the total effective focal length f of the optical imaging lens to the entrance pupil diameter EPD of the optical imaging lens is 2.22.

[0140] Table 11 shows the basic parameters of the optical imaging lens of Example 6, wherein the units of the radius of curvature, thickness / distance and focal length are all in millimeters (mm). Table 12 shows the high-order coefficients of each aspherical mirror surface that can be used in Example 6, wherein the surface type of each aspherical surface can be defined by the formula (1) given in the above Example 1.

[0141]

[0142]

[0143] Table 11

[0144] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 -2.6713E-02 -1.6033E-01 1.5307E-01 -1.1112E+00 7.8080E+00 -3.0031E+01 6.3488E+01 -6.9776E+01 3.1223E+01 S2 -1.4507E-01 -2.4866E-01 7.1053E-01 -3.0595E+00 9.4651E+00 -1.9192E+01 2.5121E+01 -1.8929E+01 6.1113E+00 S3 -9.6341E-03 -1.1523E-01 -3.9708E-01 2.2622E+00 -6.4672E+00 1.1463E+01 -1.1427E+01 5.7872E+00 -1.1559E+00 S4 -1.7175E-02 -1.0262E-01 7.6278E-02 2.6310E-01 -9.6251E-01 1.5854E+00 -1.3312E+00 5.3373E-01 -8.0833E-02 S5 2.4268E-02 -1.6289E-01 2.5802E-01 -3.8537E-01 5.1618E-01 -4.6655E-01 2.5161E-01 -7.3925E-02 9.1455E-03 S6 -3.9044E-02 3.4105E-02 -1.0896E-01 1.6286E-01 -1.2251E-01 4.9841E-02 -1.0401E-02 7.6502E-04 3.6466E-05 S7 -2.8956E-02 1.5253E-01 -3.2800E-01 4.8663E-01 -4.5879E-01 2.7519E-01 -1.0134E-01 2.0822E-02 -1.8288E-03 S8 2.4504E-01 -4.7106E-01 6.2933E-01 -6.4011E-01 4.6482E-01 -2.2575E-01 6.8798E-02 -1.1751E-02 8.5005E-04 S9 6.1012E-02 -1.1993E-01 9.0421E-02 -4.6140E-02 1.6572E-02 -4.1838E-03 7.0450E-04 -6.9537E-05 2.9850E-06 S10 -1.0045E-02 -7.8642E-03 5.1182E-03 -1.6567E-03 3.2809E-04 -4.1536E-05 3.2783E-06 -1.4677E-07 2.8426E-09

[0145] Table 12

[0146] Fig. 12A The axial chromatic aberration curve of the optical imaging lens of Example 6 is shown, which indicates the deviation of light of different wavelengths from the focal point behind the lens. Fig. 12B The astigmatism curve of the optical imaging lens of Example 6 is shown, which represents the meridional image curvature and the sagittal image curvature. Fig. 12C The distortion curve of the optical imaging lens of Example 6 is shown, which represents the distortion magnitude values ​​corresponding to different field angles. Fig.12D The magnification chromatic aberration curve of the optical imaging lens of Example 6 is shown, which represents the deviation of different image heights on the imaging surface after the light passes through the lens. FIG. 12A to FIG. 12D It can be seen that the optical imaging lens provided in Example 6 can achieve good imaging quality.

[0147] In summary, Examples 1 to 6 respectively satisfy the relationships shown in Table 13.

[0148] Conditional / Example 1 2 3 4 5 6 TTL / ImgH 1.33 1.33 1.33 1.33 1.33 1.33 R4 / f -0.64 -0.63 -0.56 -0.62 -0.62 -0.65 DT12 / DT51 0.37 0.37 0.36 0.37 0.41 0.40 ET1 / ET4 0.95 0.97 1.04 1.04 0.92 0.91 f3 / f45 -0.83 -0.85 -0.81 -0.80 -0.43 -0.65 f2 / f123 0.90 0.90 0.82 0.82 0.93 0.96 CT2 / DT21 0.49 0.50 0.57 0.56 0.51 0.50 ET3 / SAG31 0.32 0.37 0.62 0.57 0.37 0.34 SAG51 / SAG42 0.47 0.46 0.53 0.57 0.60 0.55 CT4 / f4 0.36 0.36 0.33 0.33 0.51 0.52 R1 / R2 0.71 0.69 1.07 1.05 0.77 0.71 (R7+R8) / (R5+R6) -0.86 -0.88 -1.05 -1.11 -0.85 -0.82 CT5 / R10 0.70 0.70 0.54 0.57 0.74 0.75 (CT1+CT3) / ΣAT 0.56 0.48 0.37 0.39 0.61 0.61

[0149] Table 13

[0150] The present application also provides an imaging device, whose electronic photosensitive element can be a photosensitive coupled device (CCD) or a complementary metal oxide semiconductor element (CMOS). The imaging device can be an independent imaging device such as a digital camera, or an imaging module integrated in a mobile electronic device such as a mobile phone. The imaging device is equipped with the optical imaging lens described above.

[0151] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. An optical imaging lens, characterized in that: Along the optical axis from the object side to the image side, they include: A first lens having optical power, wherein the object side surface is convex and the image side surface is concave; A second lens having positive refractive power and a convex image-side surface; The third lens has a negative optical power, and its object side surface is convex and its image side surface is concave; a fourth lens element having positive refractive power, whose object-side surface is concave and whose image-side surface is convex; and a fifth lens element having negative optical power, whose image side surface is concave; The number of lenses having optical power in the optical imaging lens is five; Half of the maximum field of view angle Semi-FOV of the optical imaging lens satisfies: 54°<Semi-FOV<55°; The effective focal length f3 of the third lens and the combined focal length f45 of the fourth lens and the fifth lens satisfy: -0.85≤f3 / f45<-0.

4.

2. The optical imaging lens according to claim 1, wherein: Half of the diagonal length ImgH of the effective pixel area on the imaging surface of the optical imaging lens satisfies: 3.8mm<ImgH≤3.86mm.

3. The optical imaging lens according to claim 1, wherein: Half of the diagonal length ImgH of the effective pixel area on the imaging plane of the optical imaging lens and the distance TTL from the object side of the first lens to the imaging plane of the optical imaging lens on the optical axis satisfy: 1.33≤TTL / ImgH<1.

4.

4. The optical imaging lens according to claim 1, wherein: The total effective focal length f of the optical imaging lens and the curvature radius R4 of the image side surface of the second lens satisfy: -0.65≤R4 / f≤-0.

56.

5. The optical imaging lens according to claim 1, wherein: The maximum effective radius DT12 of the image-side surface of the first lens and the maximum effective radius DT51 of the object-side surface of the fifth lens satisfy: 0.36≤DT12 / DT51≤0.

41.

6. The optical imaging lens according to claim 1, wherein: The edge thickness ET1 of the first lens and the edge thickness ET4 of the fourth lens satisfy: 0.9<ET1 / ET4≤1.

04.

7. The optical imaging lens according to claim 1, wherein: The effective focal length f2 of the second lens and the combined focal length f123 of the first lens, the second lens and the third lens satisfy the following: 0.8<f2 / f123<1.

0.

8. The optical imaging lens according to claim 1, wherein: A central thickness CT2 of the second lens on the optical axis and a maximum effective radius DT21 of the object-side surface of the second lens satisfy: 0.49≤CT2 / DT21<0.

6.

9. The optical imaging lens according to claim 1, wherein: The edge thickness ET3 of the third lens and the distance SAG31 from the intersection of the object side surface of the third lens and the optical axis to the vertex of the effective radius of the object side surface of the third lens on the optical axis satisfy: 0.32≤ET3 / SAG31≤0.

62.

10. The optical imaging lens according to claim 1, wherein: The 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 on the optical axis and the distance SAG51 from the intersection of the object side surface of the fifth lens and the optical axis to the vertex of the effective radius of the object side surface of the fifth lens on the optical axis satisfy: 0.46≤SAG51 / SAG42≤0.

60.

11. The optical imaging lens according to claim 1, wherein: A center thickness CT4 of the fourth lens on the optical axis and an effective focal length f4 of the fourth lens satisfy: 0.3<CT4 / f4≤0.

52.

12. The optical imaging lens according to claim 1, wherein: A curvature radius R1 of the object-side surface of the first lens and a curvature radius R2 of the image-side surface of the first lens satisfy: 0.69≤R1 / R2<1.

1.

13. The optical imaging lens according to claim 1, wherein: A curvature radius R5 of the object side surface of the third lens, a curvature radius R6 of the image side surface of the third lens, a curvature radius R7 of the object side surface of the fourth lens, and a curvature radius R8 of the image side surface of the fourth lens satisfy: -1.11≤(R7+R8) / (R5+R6)<-0.

8.

14. The optical imaging lens according to claim 1, wherein: A central thickness CT5 of the fifth lens on the optical axis and a curvature radius R10 of an image-side surface of the fifth lens satisfy the following relationship: 0.5<CT5 / R10≤0.

75.

15. The optical imaging lens according to claim 1, wherein: A center thickness CT1 of the first lens on the optical axis, a center thickness CT3 of the third lens on the optical axis, and a sum ΣAT of the spacing distances between any two adjacent lenses from the first lens to the fifth lens on the optical axis satisfy: 0.37≤(CT1+CT3) / ΣAT≤0.61.

Images