CN210015288U

CN210015288U - Optical imaging lens and electronic device

Info

Publication number: CN210015288U
Application number: CN201920961920.8U
Authority: CN
Inventors: 王新权; 戴付建; 赵烈烽
Original assignee: Zhejiang Sunny Optics Co Ltd
Current assignee: Zhejiang Sunny Optics Co Ltd
Priority date: 2019-06-25
Filing date: 2019-06-25
Publication date: 2020-02-04
Anticipated expiration: 2029-06-25

Abstract

The application provides an optical imaging lens and an electronic device, wherein the optical imaging lens sequentially comprises a first lens with positive focal power from an object side to an image side along an optical axis, and the object side surface of the first lens is a convex surface; a second lens having a negative optical power; a third lens having a negative optical power; a fourth lens having an optical power; and a fifth lens with a focal power, an image side surface of which is concave, wherein a maximum half field angle Semi-FOV of the optical imaging lens satisfies: the Semi-FOV is less than 15 degrees, so that the optical imaging lens has the characteristics of small caliber, high resolution and miniaturization, high-definition imaging is carried out on a far-end scene under the condition of ensuring the miniaturization of the system, and the requirements of high-quality telephoto imaging are met.

Description

Optical imaging lens and electronic device

Technical Field

The embodiment of the application relates to the field of optical elements, in particular to an optical imaging lens and electronic equipment.

Background

In recent years, the camera lens based on COMS and CCD has wide application in various fields, and particularly has more prominent popularization and application in the field of intelligent mobile equipment. In addition to serving as an image capturing device with a general viewing angle, a conventional camera lens is also extended to a high-pixel telephoto image capturing device for obtaining a high-quality telephoto image. The image capturing device based on the traditional optical imaging lens has a large visual angle and is difficult to meet the high-quality telephoto image capturing requirement.

SUMMERY OF THE UTILITY MODEL

To solve the technical problems in the prior art, the application provides an optical imaging lens and an electronic device.

An aspect of the present disclosure provides an optical imaging lens, in order from an object side to an image side along an optical axis, comprising: a first lens having a positive refractive power, an object-side surface of which is convex; a second lens having a negative optical power; a third lens having a negative optical power; a fourth lens having an optical power; and a fifth lens with a focal power, an image side surface of which is concave, wherein a maximum half field angle Semi-FOV of the optical imaging lens satisfies: Semi-FOV <15 deg..

According to the embodiment of the present application, a distance BFL between the image-side surface of the fifth lens element and the image plane of the optical imaging lens on the optical axis and a distance TTL between the object-side surface of the first lens element and the image plane of the optical imaging lens on the optical axis satisfy: BFL/TTL > 0.5.

According to the embodiment of the present application, a distance TTL between an object-side surface of the first lens element and an imaging surface of the optical imaging lens on the optical axis and a total effective focal length f of the optical imaging lens satisfy: TTL/f <1.

According to the embodiment of the application, the effective focal length f2 of the second lens and the total effective focal length f of the optical imaging lens satisfy that: -1.2< f2/f < -0.2.

According to the embodiment of the application, the effective focal length f1 of the first lens, the effective focal length f5 of the fifth lens and the total effective focal length f of the optical imaging lens satisfy that: 0.6< (f5-f1)/f < 1.6.

According to the embodiment of the present application, the radius of curvature R1 of the object-side surface of the first lens and the radius of curvature R2 of the image-side surface of the first lens satisfy: -1.2< R1/R2< -0.2.

According to the embodiment of the present application, the radius of curvature R2 of the image-side surface of the first lens and the radius of curvature R3 of the object-side surface of the second lens satisfy: 0.5< R2/R3< 1.5.

According to the embodiment of the application, the curvature radius R6 of the image side surface of the third lens and the effective focal length f3 of the third lens meet the following conditions: -1< R6/f3< 0.

According to the embodiment of the present application, a curvature radius R8 of an image side surface of the fourth lens and a curvature radius R9 of an object side surface of the fifth lens satisfy: 0< | (R8+ R9) |/(R9-R8) <1.

According to the embodiment of the present application, the central thickness CT1 of the first lens on the optical axis, the central thickness CT2 of the second lens on the optical axis, the central thickness CT3 of the third lens on the optical axis, the central thickness CT4 of the fourth lens on the optical axis, and the central thickness CT5 of the fifth lens on the optical axis satisfy: 0.5< (CT2+ CT3+ CT4+ CT5)/CT1< 1.

According to the embodiment of the present application, an air interval T12 of the first lens and the second lens on the optical axis, an air interval T23 of the second lens and the third lens on the optical axis, an air interval T34 of the third lens and the fourth lens on the optical axis, and an air interval T45 of the fourth lens and the fifth lens on the optical axis satisfy: 0.1< (T12+ T23)/(T34+ T45) < 0.8.

According to an embodiment of the present application, a center thickness CT2 of the second lens on the optical axis and an edge thickness ET2 of the second lens satisfy: 0.5< CT2/ET2< 1.

According to the embodiment of the present application, a projection distance SAG11 on the optical axis between an intersection point of the object-side surface of the first lens and the optical axis and an effective radius vertex of the object-side surface of the first lens, a projection distance SAG32 on the optical axis between an intersection point of the image-side surface of the third lens and the optical axis and an effective radius vertex of the image-side surface of the third lens satisfy: 0.1< SAG32/SAG11< 0.6.

According to an embodiment of the present application, the fifth lens has a positive optical power.

Another aspect of the present disclosure provides an optical imaging lens, in order from an object side to an image side along an optical axis, comprising: a first lens having a positive refractive power, an object-side surface of which is convex; a second lens having a negative optical power; a third lens having a negative optical power; a fourth lens having an optical power; and a fifth lens having a positive refractive power, an image-side surface of which is concave; the distance BFL from the image side surface of the fifth lens element to the imaging surface of the optical imaging lens on the optical axis and the distance TTL from the object side surface of the first lens element to the imaging surface of the optical imaging lens on the optical axis satisfy the following conditions: BFL/TTL > 0.5.

Yet another aspect of the present application provides an electronic apparatus including the above optical imaging lens.

The optical imaging lens provided by the application adopts five lenses, the focal power and the surface type of each lens are optimally set, the lenses are reasonably matched with each other, and a smaller maximum half field angle is set, so that the optical imaging lens performs high-definition imaging on a far-end scene under the condition of ensuring the miniaturization of a system, and the requirement of high-quality long-distance shooting and image taking is met.

Drawings

Other features, objects, and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments when taken in conjunction with the accompanying drawings. In the drawings:

fig. 1 shows a schematic structural view of an optical imaging lens according to embodiment 1 of the present application;

fig. 2A to 2D show an on-axis chromatic aberration curve, an astigmatic curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of the optical imaging lens of embodiment 1;

fig. 3 is a schematic structural view showing an optical imaging lens according to embodiment 2 of the present application;

fig. 4A to 4D show an on-axis chromatic aberration curve, an astigmatic curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of the optical imaging lens of embodiment 2;

fig. 5 is a schematic structural view showing an optical imaging lens according to embodiment 3 of the present application;

fig. 6A to 6D show an on-axis chromatic aberration curve, an astigmatic curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of the optical imaging lens of embodiment 3;

fig. 7 is a schematic structural view showing an optical imaging lens according to embodiment 4 of the present application;

fig. 8A to 8D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of the optical imaging lens of embodiment 4;

fig. 9 is a schematic structural view showing an optical imaging lens according to embodiment 5 of the present application;

fig. 10A to 10D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of the optical imaging lens of embodiment 5;

fig. 11 is a schematic structural view showing an optical imaging lens according to embodiment 6 of the present application;

fig. 12A to 12D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of the optical imaging lens of embodiment 6;

fig. 13 is a schematic structural view showing an optical imaging lens according to embodiment 7 of the present application;

fig. 14A to 14D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of an optical imaging lens of embodiment 7;

fig. 15 is a schematic structural view showing an optical imaging lens according to embodiment 8 of the present application;

fig. 16A to 16D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of the optical imaging lens of embodiment 8.

Detailed Description

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 the detailed description is merely illustrative of exemplary embodiments of the present application and does not limit the scope of the present application in any way. Like reference numerals refer to like elements throughout the specification. The expression "and/or" includes any and all combinations of one or more of the associated listed items.

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

In the drawings, the thickness, size, and shape of the lens have been slightly exaggerated for convenience of explanation. In particular, the shapes of the spherical or aspherical surfaces shown in the drawings are shown by way of example. That is, the shape of the spherical surface or the aspherical surface is not limited to the shape of the spherical surface or the aspherical surface shown in the drawings. The figures are purely diagrammatic and not drawn to scale.

Herein, the paraxial region refers to a region near the optical axis. If the lens surface is convex and the convex position 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 concave position 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 surface of the lens, and the surface of each lens closest to the imaging surface is called the image side surface of the lens.

It will be further understood that the terms "comprises," "comprising," "has," "having," "includes" and/or "including," when used in this specification, specify the presence of stated features, elements, and/or components, but do not preclude the presence or addition of one or more other features, elements, components, and/or groups thereof. Moreover, when a statement such as "at least one of" appears after a list of listed features, the entirety of the listed features is modified rather than modifying individual elements in the list. Furthermore, when describing embodiments of the present application, the use of "may" mean "one or more embodiments of the present application. Also, the term "exemplary" is intended to refer to an example or illustration.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

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

When the existing camera lens based on COMS and CCD is used as an image capturing device of intelligent mobile equipment, the visual angle is generally large, and the high-quality telephoto image capturing requirement is difficult to meet under the requirement of system miniaturization.

In view of the foregoing problems, the present application provides an optical imaging lens, which includes, in order from an object side to an image side along an optical axis, a first lens element with positive refractive power, wherein an object side surface of the first lens element is a convex surface; a second lens having a negative optical power; a third lens having a negative optical power; a fourth lens having an optical power; and a fifth lens with a focal power, an image side surface of which is concave, wherein a maximum half field angle Semi-FOV of the optical imaging lens satisfies: Semi-FOV <15 deg..

Specifically, the optical imaging lens provided by the application comprises a first lens, a second lens, a third lens, a fourth lens and a fifth lens, wherein the first lens has positive focal power, so that the total length of an optical system is favorably shortened, the miniaturization of a lens module is realized, the spherical aberration of the optical system is favorably reduced due to the fact that the object side surface of the lens module is a convex surface, and the imaging quality is improved; the second lens and the third lens have negative focal power, are matched with each other and are reasonably distributed, so that the telephoto ratio of the optical system is favorably improved, the tolerance sensitivity is reduced, and the miniaturization of the lens module is realized; the fourth lens and the fifth lens both have focal power, and the image side surface of the fifth lens is a concave surface, so that the optical effective diameter of the lenses is favorably reduced, the total length of an optical system is shortened, and the miniaturization of the lens module is realized; and the maximum half field angle of the optical imaging lens is less than 15 degrees, and the smaller field angle is beneficial to the optical system to carry out high-definition imaging on a far-end scene, so that the high-quality telephoto imaging requirement is met.

According to the embodiment of the present application, a distance BFL between the image-side surface of the fifth lens element and the image plane of the optical imaging lens on the optical axis and a distance TTL between the object-side surface of the first lens element and the image plane of the optical imaging lens on the optical axis satisfy: BFL/TTL is greater than 0.5, the ratio of the distance from the image side surface of the fifth lens element to the imaging surface of the optical imaging lens on the optical axis to the distance from the object side surface of the first lens element to the imaging surface of the optical imaging lens on the optical axis is greater than 0.5, and the method is favorable for obtaining better balance between obtaining high-quality telephoto images and miniaturizing the module by an optical system, and realizes high-quality telephoto imaging.

According to the embodiment of the present application, a distance TTL between an object-side surface of the first lens element and an imaging surface of the optical imaging lens on the optical axis and a total effective focal length f of the optical imaging lens satisfy: TTL/f <1. The object side surface of the first lens is reasonably arranged to the position where the imaging surface of the optical imaging lens is located, the proportional relation between the distance on the optical axis and the total effective focal length of the optical imaging lens can be improved, the compression ratio of an optical system can be improved, and the miniaturization of a lens module can be favorably realized.

According to the embodiment of the application, the effective focal length f2 of the second lens and the total effective focal length f of the optical imaging lens satisfy that: -1.2< f2/f < -0.2, for example, -0.9< f2/f < -0.2. The ratio of the effective focal length of the second lens to the total effective focal length of the optical imaging lens is controlled within a reasonable numerical range, the telephoto ratio of the optical system can be balanced, the reasonable distribution of the focal power is realized, the high-quality telephoto image can be obtained, and the system tolerance sensitivity during the processing and manufacturing of the lens can be reduced.

According to the embodiment of the application, the effective focal length f1 of the first lens, the effective focal length f5 of the fifth lens and the total effective focal length f of the optical imaging lens satisfy that: 0.6< (f5-f1)/f < 1.6. The mutual relation among the three is reasonably set, so that the reasonable distribution of focal power is facilitated, and the relative balance between high telephoto ratio and system aberration reduction in the optical system is realized.

According to the embodiment of the present application, the radius of curvature R1 of the object-side surface of the first lens and the radius of curvature R2 of the image-side surface of the first lens satisfy: -1.2< R1/R2< -0.2, for example, -0.85< R1/R2< -0.4. The proportional relation between the curvature radius of the object side surface of the first lens and the curvature radius of the image side surface of the first lens is reasonably controlled, so that the spherical aberration of the first lens is favorably reduced, and the optical system is ensured to have better tolerance sensitivity.

According to the embodiment of the present application, the radius of curvature R2 of the image-side surface of the first lens and the radius of curvature R3 of the object-side surface of the second lens satisfy: 0.5< R2/R3<1.5, e.g., 0.5< R2/R3< 1.3. The proportional relation between the curvature radius of the image side surface of the first lens and the curvature radius of the object side surface of the second lens is reasonably controlled, so that the assembly tolerance sensitivity of the first lens and the second lens is favorably reduced, and the product yield of production and manufacturing is improved.

According to the embodiment of the application, the curvature radius R6 of the image side surface of the third lens and the effective focal length f3 of the third lens meet the following conditions: -1< R6/f3<0, e.g., -0.65< R6/f3< 0. The proportional relation between the curvature radius of the image side surface of the third lens and the effective focal length of the third lens is reasonably controlled, so that the reasonable adjustment of the optical path change is facilitated, the focal power is prevented from being excessively concentrated on the surface of one lens, and the processing manufacturability of the lens is improved.

According to the embodiment of the present application, a curvature radius R8 of an image side surface of the fourth lens and a curvature radius R9 of an object side surface of the fifth lens satisfy: 0< | (R8+ R9) |/(R9-R8) <1. The mutual relation between the curvature radius of the image side surface of the fourth lens and the curvature radius of the object side surface of the fifth lens is reasonably set, so that reasonable adjustment of light path change is facilitated, and the imaging quality of the optical system is improved.

According to the embodiment of the present application, the central thickness CT1 of the first lens on the optical axis, the central thickness CT2 of the second lens on the optical axis, the central thickness CT3 of the third lens on the optical axis, the central thickness CT4 of the fourth lens on the optical axis, and the central thickness CT5 of the fifth lens on the optical axis satisfy: 0.5< (CT2+ CT3+ CT4+ CT5)/CT1<1, for example, 0.6< (CT2+ CT3+ CT4+ CT5)/CT1< 0.85. The mutual relation among the central thicknesses of all the lenses in the optical imaging lens is reasonably set, so that the on-axis space of all the lenses is favorably and reasonably distributed, the optical system simultaneously takes high telephoto ratio and short overall length of the system into consideration, and the requirement of miniaturization of the optical imaging lens is met.

According to the embodiment of the present application, an air interval T12 of the first lens and the second lens on the optical axis, an air interval T23 of the second lens and the third lens on the optical axis, an air interval T34 of the third lens and the fourth lens on the optical axis, and an air interval T45 of the fourth lens and the fifth lens on the optical axis satisfy: 0.1< (T12+ T23)/(T34+ T45) < 0.8. The mutual relation of the air intervals between every two adjacent lenses is reasonably set, so that the reasonable adjustment of the light path is facilitated, the excessive bending of light on the surfaces of the lenses is avoided, the sensitivity of processing and manufacturing errors of an optical system is reduced, and the production yield of products is improved.

According to an embodiment of the present application, a center thickness CT2 of the second lens on the optical axis and an edge thickness ET2 of the second lens satisfy: 0.5< CT2/ET2< 1. The proportional relation between the central thickness of the second lens on the optical axis and the edge thickness of the second lens is reasonably controlled, so that the second lens has better processing and forming manufacturability, and the manufacturing difficulty and the processing cost of the lens are reduced.

According to the embodiment of the present application, a projection distance SAG11 on the optical axis between an intersection point of the object-side surface of the first lens and the optical axis and an effective radius vertex of the object-side surface of the first lens, a projection distance SAG32 on the optical axis between an intersection point of the image-side surface of the third lens and the optical axis and an effective radius vertex of the image-side surface of the third lens satisfy: 0.1< SAG32/SAG11< 0.6. The proportional relation between the two is reasonably controlled, so that the reasonable adjustment of the light path is facilitated, the increase of tolerance sensitivity caused by excessive bending of light rays on the surface of the lens is avoided, and the imaging quality of the optical system is improved.

According to the embodiment of the application, the fifth lens has positive focal power, so that the total length of an optical system is favorably shortened, and the miniaturization of a lens module is realized.

An aspect of the present application provides an electronic apparatus including the above optical imaging lens. The electronic equipment who provides promptly of this application is installed above-mentioned optical imaging lens to acquire high definition and shoot the image.

However, it will be appreciated by those skilled in the art that the number of lenses constituting an optical imaging lens may be varied to achieve the various results and advantages described in the present specification without departing from the claimed subject matter. For example, although five lenses are exemplified in the embodiment, the optical imaging lens is not limited to include five lenses. The optical imaging lens may also include other numbers of lenses, if desired.

Specific examples of an optical imaging lens applicable to the above-described embodiments are further described below with reference to the drawings.

Example 1

An optical imaging lens according to embodiment 1 of the present application is described below with reference to fig. 1 to 2D. Fig. 1 is a schematic view showing a structure of an optical imaging lens according to embodiment 1 of the present application.

As shown in fig. 1, the optical imaging lens, in order from an object side to an image side along an optical axis, comprises: a stop 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 image forming surface S13.

The first lens element E1 has positive power, and has a convex object-side surface S1 and a convex image-side surface S2. The second lens element E2 has negative power, and has a concave object-side surface S3 and a concave image-side surface S4. The third lens element E3 has negative power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has positive power, and has a concave object-side surface S7 and a convex image-side surface S8. The fifth lens element E5 has positive power, and has a convex object-side surface S9 and a concave image-side surface S10. Filter E6 has an object side S11 and an image side S12. The light from the object sequentially passes through the respective surfaces S1 to S12 and is finally imaged on the imaging surface S13.

Table 1 shows a basic parameter table of the optical imaging lens of embodiment 1, in which the units of the radius of curvature, the thickness, and the focal length are all millimeters (mm).

TABLE 1

In embodiment 1, the object-side surface and the image-side surface of any one of the first lens E1 to the fifth lens E5 are aspheric surfaces, and the surface shape x of each aspheric lens can be defined by, but is not limited to, the following aspheric surface formula:

wherein x is the rise of the distance from the aspheric surface vertex to the aspheric surface vertex when the aspheric surface is at the position with the height of h along the optical axis direction; c is the paraxial curvature of the aspheric surface, c being 1/R (i.e., paraxial curvature c is the inverse of radius of curvature R in table 1 above); k is a conic coefficient; ai is the correction coefficient of the i-th order of the aspherical surface. Table 2 below shows the high-order coefficient A of each of the aspherical mirror surfaces S1 to S10 used in example 1₄、A₆、A₈、A₁₀And A₁₂。

Flour mark	A4	A6	A8	A10	A12
						S1	-2.2137E-05	-1.2071E-06	-3.0016E-08	1.0488E-08	0.0000E+00
S2	1.4226E-03	6.1229E-05	-4.9705E-06	-2.4430E-07	0.0000E+00
						S3	5.9189E-03	-2.1155E-04	-1.7878E-06	-1.1455E-07	6.4508E-09
S4	1.7790E-03	5.5892E-04	-1.0348E-04	4.1546E-06	0.0000E+00
						S5	-5.8465E-03	7.0064E-04	2.4091E-05	-4.0876E-06	0.0000E+00
S6	-1.1376E-02	4.3686E-04	1.8096E-05	0.0000E+00	0.0000E+00
						S7	1.1247E-02	-8.2780E-04	-4.1177E-05	-1.2878E-06	5.9386E-07
S8	1.0247E-02	-3.7206E-04	-1.5868E-04	1.2605E-05	0.0000E+00
						S9	1.6558E-03	4.8094E-04	-1.0363E-04	8.4141E-06	0.0000E+00
S10	-8.6449E-03	1.5749E-03	-1.8350E-04	1.0762E-05	0.0000E+00

TABLE 2

Fig. 2A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 1, which represents the deviation of the convergent focal points of light rays of different wavelengths after passing through the lens. Fig. 2B shows an astigmatism curve representing a meridional field curvature and a sagittal field curvature of the optical imaging lens of embodiment 1. Fig. 2C shows a distortion curve of the optical imaging lens of embodiment 1, which represents distortion magnitude values corresponding to different image heights. Fig. 2D shows a chromatic aberration of magnification curve of the optical imaging lens of embodiment 1, which represents a deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 2A to 2D, the optical imaging lens according to embodiment 1 can achieve good imaging quality.

Example 2

An optical imaging lens according to embodiment 2 of the present application is described below with reference to fig. 3 to 4D. Fig. 3 shows a schematic structural diagram of an optical imaging lens according to embodiment 2 of the present application.

As shown in fig. 3, the optical imaging lens, in order from an object side to an image side along an optical axis, comprises: a first lens E1, a second lens E2, a third lens E3, a stop STO, a fourth lens E4, a fifth lens E5, a filter E6, and an image forming surface S13.

The first lens element E1 has positive power, and has a convex object-side surface S1 and a convex image-side surface S2. The second lens element E2 has negative power, and has a concave object-side surface S3 and a convex image-side surface S4. The third lens element E3 has negative power, and has a concave object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has negative power, and has a concave object-side surface S7 and a convex image-side surface S8. The fifth lens element E5 has positive power, and has a convex object-side surface S9 and a concave image-side surface S10. Filter E6 has an object side S11 and an image side S12. The light from the object sequentially passes through the respective surfaces S1 to S12 and is finally imaged on the imaging surface S13.

Table 3 shows a basic parameter table of the optical imaging lens of embodiment 2, in which the units of the radius of curvature, the thickness, and the focal length are all millimeters (mm).

TABLE 3

In embodiment 2, the image-side surface of the first lens E1 and any one of the second lens E2 to the fifth lens E5 have aspherical surfaces on both the object-side and image-side surfaces. Table 4 below shows the high-order coefficient A of each of the aspherical mirror surfaces S1-S10 used in example 2₄、A₆、A₈、A₁₀And A₁₂。

Flour mark	A4	A6	A8	A10	A12
						S1	-6.5977E-05	0.0000E+00	0.0000E+00	0.0000E+00	0.0000E+00
S2	1.7604E-04	9.8786E-05	-7.8982E-06	0.0000E+00	0.0000E+00
						S3	-7.1915E-05	7.0455E-05	-7.2061E-06	0.0000E+00	0.0000E+00
S4	1.5149E-03	-8.7086E-05	-1.3221E-05	0.0000E+00	0.0000E+00
						S5	-2.8785E-03	6.0952E-04	-5.6284E-05	2.2378E-06	-2.0788E-07
S6	-3.2482E-03	3.0925E-04	2.6201E-05	0.0000E+00	0.0000E+00
						S7	4.4482E-03	-6.0184E-04	5.5113E-05	-1.4476E-06	0.0000E+00
S8	4.0425E-03	-3.5250E-04	0.0000E+00	0.0000E+00	0.0000E+00
						S9	6.3684E-04	-5.2231E-05	-3.4723E-05	1.6499E-06	0.0000E+00
S10	-2.3524E-03	3.8957E-04	-7.0136E-05	3.1381E-06	0.0000E+00

TABLE 4

Fig. 4A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 2, which represents the deviation of the convergent focal points of light rays of different wavelengths after passing through the lens. Fig. 4B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging lens of embodiment 2. Fig. 4C shows a distortion curve of the optical imaging lens of embodiment 2, which represents distortion magnitude values corresponding to different image heights. Fig. 4D shows a chromatic aberration of magnification curve of the optical imaging lens of embodiment 2, which represents the deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 4A to 4D, the optical imaging lens according to embodiment 2 can achieve good imaging quality.

Example 3

An optical imaging lens according to embodiment 3 of the present application is described below with reference to fig. 5 to 6D. Fig. 5 shows a schematic structural diagram of an optical imaging lens according to embodiment 3 of the present application.

As shown in fig. 5, the optical imaging lens, in order from an object side to an image side along an optical axis, comprises: a first lens E1, a second lens E2, a third lens E3, a stop STO, a fourth lens E4, a fifth lens E5, a filter E6, and an image forming surface S13.

The first lens element E1 has positive power, and has a convex object-side surface S1 and a convex image-side surface S2. The second lens element E2 has negative power, and has a concave object-side surface S3 and a convex image-side surface S4. The third lens element E3 has negative power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has negative power, and has a concave object-side surface S7 and a convex image-side surface S8. The fifth lens element E5 has positive power, and has a convex object-side surface S9 and a concave image-side surface S10. Filter E6 has an object side S11 and an image side S12. The light from the object sequentially passes through the respective surfaces S1 to S12 and is finally imaged on the imaging surface S13.

Table 5 shows a basic parameter table of the optical imaging lens of embodiment 3, in which the units of the radius of curvature, the thickness, and the focal length are all millimeters (mm).

TABLE 5

In embodiment 3, the image-side surface of the first lens E1 and any one of the second lens E2 to the fifth lens E5 have aspherical surfaces on both the object-side and image-side surfaces. Table 6 below shows the high-order coefficient A of each of the aspherical mirror surfaces S1-S10 used in example 3₄、A₆、A₈、A₁₀And A₁₂。

TABLE 6

Fig. 6A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 3, which represents the deviation of the convergent focal points of light rays of different wavelengths after passing through the lens. Fig. 6B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging lens of embodiment 3. Fig. 6C shows a distortion curve of the optical imaging lens of embodiment 3, which represents distortion magnitude values corresponding to different image heights. Fig. 6D shows a chromatic aberration of magnification curve of the optical imaging lens of embodiment 3, which represents a deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 6A to 6D, the optical imaging lens according to embodiment 3 can achieve good imaging quality.

Example 4

An optical imaging lens according to embodiment 4 of the present application is described below with reference to fig. 7 to 8D. Fig. 7 shows a schematic structural diagram of an optical imaging lens according to embodiment 4 of the present application.

As shown in fig. 4, the optical imaging lens, in order from an object side to an image side along an optical axis, comprises: a first lens E1, a second lens E2, a third lens E3, a stop STO, a fourth lens E4, a fifth lens E5, a filter E6, and an image forming surface S13.

Table 7 shows a basic parameter table of the optical imaging lens of embodiment 4, in which the units of the radius of curvature, the thickness, and the focal length are all millimeters (mm).

TABLE 7

In embodiment 4, the image-side surface of the first lens E1 and any one of the second lens E2 to the fifth lens E5 has both aspheric object-side and image-side surfaces. Table 8 below shows the high-order coefficient A of each of the aspherical mirror surfaces S1-S10 used in example 4₄、A₆、A₈And A₁₀。

Flour mark	A4	A6	A8	A10
					S1	-4.7290E-05	0.0000E+00	0.0000E+00	0.0000E+00
S2	1.2546E-03	-1.4755E-05	-2.5788E-06	0.0000E+00
					S3	2.6007E-05	4.3267E-05	-3.4043E-06	0.0000E+00
S4	8.0045E-04	-1.2947E-04	2.8527E-05	0.0000E+00
					S5	-2.3764E-03	2.3393E-04	1.4891E-05	4.9916E-07
S6	-1.7146E-03	4.8878E-05	1.8090E-05	0.0000E+00
					S7	5.0389E-03	-7.7304E-04	4.1820E-05	-1.6616E-06
S8	5.8184E-03	-3.9606E-04	0.0000E+00	0.0000E+00
					S9	1.7712E-03	-4.1549E-06	-1.7366E-05	1.5927E-07
S10	-3.5672E-03	4.6242E-04	-4.9700E-05	1.4624E-06

TABLE 8

Fig. 8A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 4, which represents the deviation of the convergent focal points of light rays of different wavelengths after passing through the lens. Fig. 8B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging lens of embodiment 4. Fig. 8C shows a distortion curve of the optical imaging lens of embodiment 4, which represents distortion magnitude values corresponding to different image heights. Fig. 8D shows a chromatic aberration of magnification curve of the optical imaging lens of embodiment 4, which represents the deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 8A to 8D, the optical imaging lens according to embodiment 4 can achieve good imaging quality.

Example 5

An optical imaging lens according to embodiment 5 of the present application is described below with reference to fig. 9 to 10D. Fig. 9 shows a schematic structural diagram of an optical imaging lens according to embodiment 5 of the present application.

As shown in fig. 9, the optical imaging lens, in order from an object side to an image side along an optical axis, comprises: a first lens E1, a second lens E2, a third lens E3, a stop STO, a fourth lens E4, a fifth lens E5, a filter E6, and an image forming surface S13.

Table 9 shows a basic parameter table of the optical imaging lens of embodiment 5, in which the units of the radius of curvature, the thickness, and the focal length are all millimeters (mm).

TABLE 9

In embodiment 5, the image-side surface of the first lens E1 and any one of the second lens E2 to the fifth lens E5 has both aspheric object-side and image-side surfaces. Table 10 below shows the high-order coefficient A of each of the aspherical mirror surfaces S1-S10 used in example 5₄、A₆、A₈And A₁₀。

Flour mark	A4	A6	A8	A10
					S1	1.2500E-04	6.8058E-05	-3.3369E-06	0.0000E+00
S2	-2.8795E-04	6.8100E-05	-3.0192E-06	0.0000E+00
					S3	1.1319E-03	7.0711E-05	-2.5939E-05	0.0000E+00
S4	-3.1133E-03	7.1891E-04	-6.0220E-05	-8.1698E-07
					S5	-3.4172E-03	3.8185E-04	6.1368E-06	0.0000E+00
S6	4.8011E-03	-6.0495E-04	4.0342E-05	2.0044E-07
					S7	4.1758E-03	-3.4565E-04	0.0000E+00	0.0000E+00
S8	1.8004E-03	-3.6872E-04	-5.6236E-07	-1.3407E-06
					S9	-2.8351E-03	2.3193E-04	-4.8238E-05	1.3069E-06
S10	0.0000E+00	0.0000E+00	0.0000E+00	0.0000E+00

Watch 10

Fig. 10A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 5, which represents the deviation of the convergent focal points of light rays of different wavelengths after passing through the lens. Fig. 10B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging lens of embodiment 5. Fig. 10C shows a distortion curve of the optical imaging lens of embodiment 5, which represents distortion magnitude values corresponding to different image heights. Fig. 10D shows a chromatic aberration of magnification curve of the optical imaging lens of embodiment 5, which represents a deviation of different image heights on the imaging surface after light passes through the lens. As can be seen from fig. 10A to 10D, the optical imaging lens according to embodiment 5 can achieve good imaging quality.

Example 6

An optical imaging lens according to embodiment 6 of the present application is described below with reference to fig. 11 to 12D. Fig. 11 shows a schematic structural view of an optical imaging lens according to embodiment 6 of the present application.

As shown in fig. 11, the optical imaging lens, in order from an object side to an image side along an optical axis, comprises: a first lens E1, a second lens E2, a third lens E3, a stop STO, a fourth lens E4, a fifth lens E5, a filter E6, and an image forming surface S13.

The first lens element E1 has positive power, and has a convex object-side surface S1 and a convex image-side surface S2. The second lens element E2 has negative power, and has a concave object-side surface S3 and a concave image-side surface S4. The third lens element E3 has negative power, and has a concave object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has positive power, and has a concave object-side surface S7 and a convex image-side surface S8. The fifth lens element E5 has positive power, and has a convex object-side surface S9 and a concave image-side surface S10. Filter E6 has an object side S11 and an image side S12. The light from the object sequentially passes through the respective surfaces S1 to S12 and is finally imaged on the imaging surface S13.

Table 11 shows a basic parameter table of the optical imaging lens of embodiment 6, in which the units of the radius of curvature, the thickness, and the focal length are all millimeters (mm).

TABLE 11

In embodiment 6, the image-side surface of the first lens E1 and any one of the second lens E2 to the fifth lens E5 has both aspheric object-side and image-side surfaces. Table 12 below shows the high-order coefficient A of each of the aspherical mirror surfaces S1-S10 used in example 6₄、A₆、A₈、A₁₀、A₁₂And A₁₄。

Flour mark

A4

A6

A8

A10

A12

A14

S1

-4.2666E-05

0.0000E+00

S2

1.3358E-04

8.7973E-05

-1.8862E-06

0.0000E+00

S3

-1.4129E-03

2.0328E-04

-1.4367E-06

0.0000E+00

S4

2.5180E-03

-2.2194E-04

8.7670E-06

0.0000E+00

S5

-8.7793E-04

-3.6054E-04

6.2694E-06

-2.2275E-07

0.0000E+00

S6

-2.0732E-03

7.8309E-05

-1.2425E-05

0.0000E+00

S7

4.4448E-03

-1.9336E-04

-4.2271E-05

1.2046E-06

0.0000E+00

S8

3.0851E-03

-3.9325E-04

0.0000E+00

S9

8.2471E-04

-3.9736E-04

3.3675E-05

-5.2012E-06

1.9266E-07

-1.2251E-08

S10

-3.4574E-03

2.1180E-04

-2.8840E-05

-2.9021E-07

0.0000E+00

TABLE 12

Fig. 12A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 6, which represents the deviation of the convergent focal points of light rays of different wavelengths after passing through the lens. Fig. 12B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging lens of embodiment 6. Fig. 12C shows a distortion curve of the optical imaging lens of embodiment 6, which represents distortion magnitude values corresponding to different image heights. Fig. 12D shows a chromatic aberration of magnification curve of the optical imaging lens of embodiment 6, which represents a deviation of different image heights on the imaging surface after light passes through the lens. As can be seen from fig. 12A to 12D, the optical imaging lens according to embodiment 6 can achieve good imaging quality.

Example 7

An optical imaging lens according to embodiment 7 of the present application is described below with reference to fig. 13 to 14D. Fig. 13 is a schematic structural view showing an optical imaging lens according to embodiment 7 of the present application.

As shown in fig. 13, the optical imaging lens, in order from an object side to an image side along an optical axis, comprises: a first lens E1, a second lens E2, a third lens E3, a stop STO, a fourth lens E4, a fifth lens E5, a filter E6, and an image forming surface S13.

The first lens element E1 has positive power, and has a convex object-side surface S1 and a convex image-side surface S2. The second lens element E2 has negative power, and has a concave object-side surface S3 and a concave image-side surface S4. The third lens element E3 has negative power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has positive power, and has a convex object-side surface S7 and a convex image-side surface S8. The fifth lens element E5 has positive power, and has a convex object-side surface S9 and a concave image-side surface S10. Filter E6 has an object side S11 and an image side S12. The light from the object sequentially passes through the respective surfaces S1 to S12 and is finally imaged on the imaging surface S13.

Table 13 shows a basic parameter table of the optical imaging lens of embodiment 7, in which the units of the radius of curvature, the thickness, and the focal length are all millimeters (mm).

Watch 13

In embodiment 7, the image-side surface of the first lens E1 and any one of the second lens E2 to the fifth lens E5 has both aspheric object-side and image-side surfaces. Table 14 below shows the high-order coefficient A of each of the aspherical mirror surfaces S1-S10 used in example 7₄、A₆、A₈And A₁₀。

Flour mark	A4	A6	A8	A10
					S1	6.0125E-06	0.0000E+00	0.0000E+00	0.0000E+00
S2	9.4550E-06	8.6999E-05	-1.6121E-06	0.0000E+00
					S3	-1.5021E-03	2.9579E-04	-7.1912E-06	0.0000E+00
S4	1.8509E-03	-2.3625E-04	3.1203E-05	0.0000E+00
					S5	-2.4261E-03	1.2947E-04	-8.1107E-06	0.0000E+00
S6	-4.2877E-03	9.1868E-04	-4.1585E-05	0.0000E+00
					S7	3.0983E-03	-4.3338E-04	7.2031E-05	-2.5516E-06
S8	2.0321E-03	-2.4382E-04	6.8994E-06	-3.5086E-07
					S9	-1.0198E-03	-2.8819E-04	1.4404E-06	-2.2303E-06
S10	-1.7608E-03	-3.4673E-05	-6.1785E-06	2.7572E-07

TABLE 14

Fig. 14A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 7, which represents the deviation of the convergent focal points of light rays of different wavelengths after passing through the lens. Fig. 14B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging lens of embodiment 7. Fig. 14C shows a distortion curve of the optical imaging lens of embodiment 7, which represents distortion magnitude values corresponding to different image heights. Fig. 14D shows a chromatic aberration of magnification curve of the optical imaging lens of embodiment 7, which represents a deviation of different image heights on the imaging surface after light passes through the lens. As can be seen from fig. 14A to 14D, the optical imaging lens according to embodiment 7 can achieve good imaging quality.

Example 8

An optical imaging lens according to embodiment 8 of the present application is described below with reference to fig. 15 to 16D. Fig. 15 shows a schematic structural diagram of an optical imaging lens according to embodiment 8 of the present application.

As shown in fig. 15, the optical imaging lens, in order from an object side to an image side along an optical axis, comprises: a first lens E1, a second lens E2, a third lens E3, a stop STO, a fourth lens E4, a fifth lens E5, a filter E6, and an image forming surface S13.

The first lens element E1 has positive power, and has a convex object-side surface S1 and a convex image-side surface S2. The second lens element E2 has negative power, and has a concave object-side surface S3 and a convex image-side surface S4. The third lens element E3 has negative power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has positive power, and has a concave object-side surface S7 and a convex image-side surface S8. The fifth lens element E5 has positive power, and has a convex object-side surface S9 and a concave image-side surface S10. Filter E6 has an object side S11 and an image side S12. The light from the object sequentially passes through the respective surfaces S1 to S12 and is finally imaged on the imaging surface S13.

Table 15 shows a basic parameter table of the optical imaging lens of embodiment 8, in which the units of the radius of curvature, the thickness, and the focal length are all millimeters (mm).

Watch 15

In embodiment 8, the image-side surface of the first lens E1 and any one of the second lens E2 to the fifth lens E5 has both aspheric object-side and image-side surfaces. Table 16 below shows the high-order coefficient A of each of the aspherical mirror surfaces S1-S10 used in example 8₄、A₆、A₈And A₁₀。

Flour mark	A4	A6	A8	A10
					S1	-2.4006E-05	0.0000E+00	0.0000E+00	0.0000E+00
S2	1.3250E-03	-6.3286E-05	1.9103E-06	0.0000E+00
					S3	5.9795E-04	-5.9960E-05	3.3706E-06	0.0000E+00
S4	1.4607E-03	-1.1137E-04	4.7445E-06	0.0000E+00
					S5	-3.8495E-03	7.5021E-04	-3.4228E-05	0.0000E+00
S6	-3.1295E-03	4.7728E-04	3.3824E-05	0.0000E+00
					S7	3.8843E-03	-9.0717E-04	1.0067E-04	-4.2520E-06
S8	5.9419E-03	-5.8805E-04	0.0000E+00	0.0000E+00
					S9	-1.3038E-03	4.1530E-04	-9.0554E-05	4.9091E-06
S10	-5.1763E-03	1.0875E-03	-1.4826E-04	7.2644E-06

TABLE 16

Fig. 16A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 8, which represents the deviation of the convergent focal points of light rays of different wavelengths after passing through the lens. Fig. 16B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging lens of embodiment 8. Fig. 16C shows a distortion curve of the optical imaging lens of embodiment 8, which represents distortion magnitude values corresponding to different image heights. Fig. 16D shows a chromatic aberration of magnification curve of the optical imaging lens of embodiment 8, which represents a deviation of different image heights on the imaging surface after light passes through the lens. As can be seen from fig. 16A to 16D, the optical imaging lens according to embodiment 8 can achieve good imaging quality.

The following table 17 shows the effective focal lengths f1-f5 of the respective lenses of the optical imaging lenses described in the above embodiments 1-8, the total effective focal length f of the optical imaging lenses, the total length TTL of the optical imaging lenses, the half diagonal length ImgH of the effective pixel area on the imaging plane, the maximum half field angle Semi-FOV of the optical imaging lenses, and the aperture value f/EPD of the optical imaging lenses.

Basic data/embodiment	1	2	3	4	5	6	7	8
									f1(mm)	7.40	6.85	6.85	8.05	6.83	7.50	7.19	7.13
f2(mm)	-6.79	-12.41	-10.69	-20.03	-12.29	-15.39	-11.92	-11.88
									f3(mm)	-29.63	-9.96	-9.96	-8.34	-9.68	-6.91	-6.04	-8.45
f4(mm)	106.38	-460.82	-16345.71	115.42	-271.46	25.73	13.81	32.90
									f5(mm)	26.27	33.35	24.61	27.58	30.73	36.62	41.82	34.80
f(mm)	22.98	23.49	23.49	23.49	23.50	23.50	23.49	23.50
									TTL(mm)	22.30	22.98	22.74	22.52	22.87	23.02	22.74	23.00
ImgH(mm)	4.25	4.18	4.18	4.18	4.18	4.18	4.17	4.18
									f/EPD	3.24	3.40	3.99	3.99	3.40	3.99	4.00	3.99
Semi-FOV(°)	10.3	10.0	10.0	10.0	10.0	10.0	10.0	10.0

TABLE 17

Table 18 below lists the relevant parameters of the optical imaging lens according to the embodiments of the present application.

Conditions/examples	1	2	3	4	5	6	7	8
									BFL/TTL	0.58	0.58	0.59	0.58	0.58	0.61	0.59	0.61
TTL/f	0.97	0.98	0.97	0.96	0.97	0.98	0.97	0.98
									f2/f	-0.30	-0.53	-0.46	-0.85	-0.52	-0.65	-0.51	-0.51
(f5-f1)/f	0.82	1.13	0.76	0.83	1.02	1.24	1.47	1.18
									R1/R2	-0.84	-0.76	-0.77	-0.43	-0.72	-0.50	-0.56	-0.72
R2/R3	1.22	1.09	1.11	0.61	1.05	0.63	0.75	1.05
									R6/f3	-0.11	-0.63	-0.47	-0.50	-0.63	-0.63	-0.58	-0.45
\|(R8+R9)\|/(R9-R8)	0.64	0.21	0.28	0.36	0.38	0.58	0.69	0.28
									(CT2+CT3+CT4+CT5)/CT1	0.62	0.76	0.77	0.84	0.73	0.65	0.67	0.81
(T12+T23)/(T34+T45)	0.91	0.30	0.19	0.15	0.29	0.38	0.57	0.16
									CT2/ET2	0.54	0.70	0.63	0.76	0.69	0.71	0.59	0.67
SAG32/SAG11	0.35	0.21	0.33	0.34	0.21	0.31	0.34	0.42

Watch 18

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims

1. An optical imaging lens, in order from an object side to an image side along an optical axis, comprising:

a first lens having a positive refractive power, an object-side surface of which is convex;

a second lens having a negative optical power;

a third lens having a negative optical power;

a fourth lens having an optical power; and

a fifth lens having a refractive power, an image-side surface of which is concave, wherein,

the maximum half field angle Semi-FOV of the optical imaging lens meets the following requirements: Semi-FOV <15 deg..

2. The optical imaging lens of claim 1, wherein a distance BFL on the optical axis from the image side surface of the fifth lens element to the imaging surface of the optical imaging lens and a distance TTL on the optical axis from the object side surface of the first lens element to the imaging surface of the optical imaging lens satisfy: BFL/TTL > 0.5.

3. The optical imaging lens of claim 1, wherein a distance TTL between an object side surface of the first lens element and an imaging surface of the optical imaging lens on the optical axis and a total effective focal length f of the optical imaging lens satisfy:

TTL/f<1。

4. the optical imaging lens of claim 1, wherein the effective focal length f2 of the second lens and the total effective focal length f of the optical imaging lens satisfy:

-1.2<f2/f<-0.2。

5. the optical imaging lens of claim 1, wherein the effective focal length f1 of the first lens, the effective focal length f5 of the fifth lens and the total effective focal length f of the optical imaging lens satisfy:

0.6<(f5-f1)/f<1.6。

6. the optical imaging lens of claim 1, wherein the radius of curvature R1 of the object-side surface of the first lens and the radius of curvature R2 of the image-side surface of the first lens satisfy:

-1.2<R1/R2<-0.2。

7. the optical imaging lens of claim 1, wherein the radius of curvature R2 of the image side surface of the first lens and the radius of curvature R3 of the object side surface of the second lens satisfy:

0.5<R2/R3<1.5。

8. the optical imaging lens of claim 1, wherein the radius of curvature R6 of the image side surface of the third lens and the effective focal length f3 of the third lens satisfy:

-1<R6/f3<0。

9. the optical imaging lens of claim 1, wherein the radius of curvature R8 of the image side surface of the fourth lens and the radius of curvature R9 of the object side surface of the fifth lens satisfy:

0<|(R8+R9)|/(R9-R8)<1。

10. the optical imaging lens according to claim 1, wherein a center thickness CT1 of the first lens on the optical axis, a center thickness CT2 of the second lens on the optical axis, a center thickness CT3 of the third lens on the optical axis, a center thickness CT4 of the fourth lens on the optical axis, and a center thickness CT5 of the fifth lens on the optical axis satisfy:

0.5<(CT2+CT3+CT4+CT5)/CT1<1。

11. the optical imaging lens according to claim 1, wherein an air interval T12 on the optical axis of the first lens and the second lens, an air interval T23 on the optical axis of the second lens and the third lens, an air interval T34 on the optical axis of the third lens and the fourth lens, and an air interval T45 on the optical axis of the fourth lens and the fifth lens satisfy:

0.1<(T12+T23)/(T34+T45)<0.8。

12. the optical imaging lens of claim 1, wherein a center thickness CT2 of the second lens on the optical axis and an edge thickness ET2 of the second lens satisfy:

0.5<CT2/ET2<1。

13. the optical imaging lens according to claim 1, wherein a projection distance SAG11 on the optical axis between an intersection point of the object-side surface of the first lens and the optical axis and an effective radius vertex of the object-side surface of the first lens, and a projection distance SAG32 on the optical axis between an intersection point of the image-side surface of the third lens and the optical axis and an effective radius vertex of the image-side surface of the third lens satisfy: 0.1< SAG32/SAG11< 0.6.

14. The optical imaging lens of claim 1, wherein the fifth lens has a positive optical power.

15. An optical imaging lens, in order from an object side to an image side along an optical axis, comprising:

a second lens having a negative optical power;

a third lens having a negative optical power;

a fourth lens having an optical power; and

a fifth lens element having a positive refractive power and a concave image-side surface, wherein,

the distance BFL from the image side surface of the fifth lens element to the imaging surface of the optical imaging lens on the optical axis and the distance TTL from the object side surface of the first lens element to the imaging surface of the optical imaging lens on the optical axis satisfy the following conditions: BFL/TTL > 0.5.

16. The optical imaging lens of claim 15, wherein a distance TTL between an object side surface of the first lens element and an imaging surface of the optical imaging lens on the optical axis and a total effective focal length f of the optical imaging lens satisfy:

TTL/f<1。

17. the optical imaging lens of claim 15, wherein the effective focal length f2 of the second lens and the total effective focal length f of the optical imaging lens satisfy:

-1.2<f2/f<-0.2。

18. the optical imaging lens of claim 15, wherein the effective focal length f1 of the first lens, the effective focal length f5 of the fifth lens and the total effective focal length f of the optical imaging lens satisfy:

0.6<(f5-f1)/f<1.6。

19. the optical imaging lens of claim 15, wherein the radius of curvature R1 of the object-side surface of the first lens and the radius of curvature R2 of the image-side surface of the first lens satisfy:

-1.2<R1/R2<-0.2。

20. the optical imaging lens of claim 15, wherein the radius of curvature R2 of the image side surface of the first lens and the radius of curvature R3 of the object side surface of the second lens satisfy:

0.5<R2/R3<1.5。

21. the optical imaging lens of claim 15, wherein the radius of curvature R6 of the image side surface of the third lens and the effective focal length f3 of the third lens satisfy:

-1<R6/f3<0。

22. the optical imaging lens of claim 15, wherein the radius of curvature R8 of the image side surface of the fourth lens and the radius of curvature R9 of the object side surface of the fifth lens satisfy:

0<|(R8+R9)|/(R9-R8)<1。

23. the optical imaging lens of claim 15, wherein a center thickness CT1 of the first lens on the optical axis, a center thickness CT2 of the second lens on the optical axis, a center thickness CT3 of the third lens on the optical axis, a center thickness CT4 of the fourth lens on the optical axis, and a center thickness CT5 of the fifth lens on the optical axis satisfy:

0.5<(CT2+CT3+CT4+CT5)/CT1<1。

24. the optical imaging lens of claim 15, wherein an air interval T12 on the optical axis of the first lens and the second lens, an air interval T23 on the optical axis of the second lens and the third lens, an air interval T34 on the optical axis of the third lens and the fourth lens, and an air interval T45 on the optical axis of the fourth lens and the fifth lens satisfy:

0.1<(T12+T23)/(T34+T45)<0.8。

25. the optical imaging lens of claim 15, wherein a center thickness CT2 of the second lens on the optical axis and an edge thickness ET2 of the second lens satisfy:

0.5<CT2/ET2<1。

26. the optical imaging lens of claim 15, wherein a projection distance SAG11 on the optical axis between an intersection point of the object-side surface of the first lens and the optical axis and an effective radius vertex of the object-side surface of the first lens, and a projection distance SAG32 on the optical axis between an intersection point of the image-side surface of the third lens and the optical axis and an effective radius vertex of the image-side surface of the third lens satisfy: 0.1< SAG32/SAG11< 0.6.

27. An electronic device, characterized in that the electronic device comprises an optical imaging lens according to any one of claims 1-26.