CN114265179A

CN114265179A - Optical imaging lens and camera module

Info

Publication number: CN114265179A
Application number: CN202111630749.0A
Authority: CN
Inventors: 王�锋; 周明明; 马庆鸿; 万良伟
Original assignee: Huizhou Xingjuyu Optical Co ltd
Current assignee: Huizhou Xingjuyu Optical Co ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-04-01
Anticipated expiration: 2041-12-28
Also published as: CN114265179B

Abstract

The invention discloses an optical imaging lens and a camera module, belonging to the technical field of optical imaging, wherein the optical imaging lens comprises a first lens with positive focal power, and the object side surface of the first lens is a convex surface close to an optical axis; a second lens having a focal power, an image-side surface of which is concave near the optical axis; a third lens having optical power; a fourth lens having an optical power; a fifth lens element having a negative refractive power, an object-side surface of which is concave near the optical axis, and an image-side surface of which is concave near the optical axis; the optical imaging lens meets the following conditional expression: TTL/ImgH <1.55, -0.6< CT4/f5< -0.2, 0.75< SAG42/SAG51< 1.37. The optical imaging lens provided by the invention can meet the requirement of small TTL (transistor-transistor logic) and can obtain higher imaging performance.

Description

Optical imaging lens and camera module

Technical Field

The invention relates to the technical field of optical imaging, in particular to an optical imaging lens and a camera module.

Background

In recent years, with the rapid development of portable electronic devices such as smartphones and tablet computers, people have increasingly demanded the size of the head of a miniaturized camera while pursuing good performance of the portable electronic devices such as smartphones and tablet computers.

The height of an image of an existing miniaturized camera is generally small, the head of the existing miniaturized camera is large, and the requirement of a small head of a lens cannot be met while a large image plane is guaranteed. At present, a full screen gradually develops into one of mainstream screens of portable electronic devices such as smart phones and tablet computers circulating in the market. For functional reasons, a full-face screen usually only allows a small portion of the light to pass through the front camera, and therefore, more stringent requirements are placed on the size of the front camera head. How to reduce the size of the camera head on the basis of ensuring a large image surface and image quality is a development direction of the existing small head lens.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide an optical imaging lens and a camera module, which can enable the optical imaging lens to meet the requirement of small TTL and can obtain higher imaging performance.

In a first aspect, an optical imaging lens, in order from an object side to an image side along an optical axis, comprises:

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

a second lens having a focal power, an image-side surface of which is concave near the optical axis;

a third lens having optical power;

a fourth lens having an optical power;

a fifth lens element having a negative refractive power, an object-side surface of which is concave near the optical axis, and an image-side surface of which is concave near the optical axis;

the optical imaging lens meets the following conditional expression:

TTL/ImgH<1.55，-0.6<CT4/f5<-0.2，0.75<SAG42/SAG51<1.37；

wherein, TTL is the distance between the object side surface of the first lens and the imaging surface of the optical imaging lens on the optical axis; ImgH is the maximum image height of the optical imaging lens; CT4 is the center thickness of the fourth lens on the optical axis; f5 is the effective focal length of the fifth lens; SAG42 is the distance on the optical axis from the intersection point 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; SAG51 is the distance on the optical axis from the intersection point 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.

Optionally, the optical imaging lens satisfies the following conditional expression:

0.35<DT11/DT52<0.50；

DT11 is a maximum effective radius of an object-side surface of the first lens, and DT52 is a maximum effective radius of an image-side surface of the fifth lens.

Optionally, the optical imaging lens satisfies the following conditional expression: 1.45< ET5/ET4< 2.4;

wherein ET5 is the edge thickness of the fifth lens; ET4 is the rim thickness of the fourth lens.

-0.3<f123/f45<0.15；

wherein f123 is a combined focal length of the first lens, the second lens, and the third lens; f45 is the combined focal length of the fourth lens and the fifth lens.

0.9<CT4/T34<1.82；

wherein CT4 is the central thickness of the fourth lens on the optical axis; t34 is a distance between the third lens and the fourth lens on the optical axis.

Optionally, the optical imaging lens satisfies the following conditional expression: 1.7< CT4/CT5< 2.61;

wherein CT4 is the central thickness of the fourth lens on the optical axis; CT5 is the center thickness of the fifth lens on the optical axis.

Optionally, the optical imaging lens satisfies the following conditional expression: 1.7< f/EPD < 1.9;

wherein f is the total effective focal length of the optical imaging lens, and EPD is the entrance pupil diameter of the optical imaging lens.

0.55<EPD/ImgH<0.75；

the EPD is the diameter of the entrance pupil of the optical imaging lens, and the ImgH is the maximum image height of the optical imaging lens.

Alternatively, 1.1< TTL/f < 1.3;

wherein, TTL is the distance between the object side surface of the first lens and the imaging surface of the optical imaging lens on the optical axis; f is the total effective focal length of the optical imaging lens.

In a second aspect, a camera module is provided, which includes the optical imaging lens in any one of the possible implementations of the first aspect.

The invention has the beneficial effects that:

according to the given relational expression and range in the invention content, when the TTL/ImgH is less than 1.55 through the configuration mode of the lens and the combination of the lens with specific optical design, the miniaturization of the optical imaging lens is facilitated at a certain maximum image height; when the requirements of-0.6 < CT4/f5< -0.2 and 0.75< SAG42/SAG51<1.37 are met, the method is favorable for improving imaging aberration and distortion and obtaining higher imaging quality. Therefore, when TTL/ImgH is less than 1.55, 0.6< CT4/f5< -0.2 and 0.75< SAG42/SAG51<1.37 are simultaneously met, the optical imaging lens is favorable for meeting the requirement of small TTL, and higher imaging performance can be obtained.

Drawings

Fig. 1 is a schematic structural view of an optical imaging lens according to a first embodiment of the present application;

fig. 2 is a spherical aberration curve chart of the optical imaging lens according to the first embodiment of the present application;

fig. 3 is a graph of astigmatism of an optical imaging lens according to a first embodiment of the present application;

fig. 4 is a distortion diagram of an optical imaging lens according to the first embodiment of the present application;

fig. 5 is a graph of chromatic aberration of magnification of an optical imaging lens according to the first embodiment of the present application;

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

fig. 7 is a spherical aberration curve chart of an optical imaging lens according to a second embodiment of the present application;

fig. 8 is an astigmatism graph of an optical imaging lens according to a second embodiment of the present application;

fig. 9 is a distortion graph of an optical imaging lens according to a second embodiment of the present application;

fig. 10 is a graph of chromatic aberration of magnification of an optical imaging lens according to a second embodiment of the present application;

fig. 11 is a schematic configuration diagram of an optical imaging lens according to a third embodiment of the present application;

fig. 12 is a spherical aberration graph of an optical imaging lens according to a third embodiment of the present application;

fig. 13 is an astigmatism graph of an optical imaging lens according to a third embodiment of the present application;

fig. 14 is a distortion graph of an optical imaging lens according to a third embodiment of the present application;

fig. 15 is a graph of chromatic aberration of magnification of an optical imaging lens according to a third embodiment of the present application;

fig. 16 is a schematic configuration diagram of an optical imaging lens according to a fourth embodiment of the present application;

fig. 17 is a spherical aberration chart of an optical imaging lens according to a fourth embodiment of the present application;

fig. 18 is an astigmatism graph of an optical imaging lens according to a fourth embodiment of the present application;

fig. 19 is a distortion graph of an optical imaging lens according to a fourth embodiment of the present application;

fig. 20 is a graph of chromatic aberration of magnification of an optical imaging lens according to a fourth embodiment of the present application;

fig. 21 is a schematic configuration diagram of an optical imaging lens according to a fifth embodiment of the present application;

fig. 22 is a spherical aberration graph of an optical imaging lens according to a fifth embodiment of the present application;

fig. 23 is an astigmatism graph of an optical imaging lens according to fifth embodiment of the present application;

fig. 24 is a distortion graph of an optical imaging lens according to a fifth embodiment of the present application;

fig. 25 is a graph of chromatic aberration of magnification of an optical imaging lens according to a fifth embodiment of the present application;

fig. 26 is a schematic configuration diagram of an optical imaging lens according to a sixth embodiment of the present application;

fig. 27 is a spherical aberration chart of an optical imaging lens according to a sixth embodiment of the present application;

fig. 28 is an astigmatism graph of an optical imaging lens according to a sixth embodiment of the present application;

fig. 29 is a distortion graph of an optical imaging lens according to a sixth embodiment of the present application;

fig. 30 is a graph showing a chromatic aberration of magnification of an optical imaging lens according to a sixth embodiment of the present application;

fig. 31 is a schematic configuration diagram of an optical imaging lens according to a seventh embodiment of the present application;

fig. 32 is a spherical aberration chart of an optical imaging lens according to a seventh embodiment of the present application;

fig. 33 is an astigmatism graph of an optical imaging lens according to a seventh embodiment of the present application;

fig. 34 is a distortion graph of an optical imaging lens according to a seventh embodiment of the present application;

fig. 35 is a graph of chromatic aberration of magnification of an optical imaging lens according to a seventh embodiment of the present application;

fig. 36 is a schematic configuration diagram of an optical imaging lens according to an eighth embodiment of the present application;

fig. 37 is a spherical aberration curve chart of an optical imaging lens according to the eighth embodiment of the present application;

fig. 38 is an astigmatism graph of an optical imaging lens according to an eighth embodiment of the present application;

fig. 39 is a distortion graph of an optical imaging lens according to the eighth embodiment of the present application;

fig. 40 is a graph of chromatic aberration of magnification of an optical imaging lens according to the eighth embodiment of the present application;

fig. 41 is a schematic configuration diagram of an optical imaging lens according to a ninth embodiment of the present application;

fig. 42 is a spherical aberration chart of an optical imaging lens according to the ninth embodiment of the present application;

fig. 43 is an astigmatism graph of an optical imaging lens according to the ninth embodiment of the present application;

fig. 44 is a distortion graph of an optical imaging lens according to the ninth embodiment of the present application;

fig. 45 is a graph of chromatic aberration of magnification of an optical imaging lens according to the ninth embodiment of the present application;

fig. 46 is a schematic configuration diagram of an optical imaging lens according to a tenth embodiment of the present application;

fig. 47 is a spherical aberration chart of an optical imaging lens according to a tenth embodiment of the present application;

fig. 48 is an astigmatism graph of an optical imaging lens according to a tenth embodiment of the present application;

fig. 49 is a distortion graph of an optical imaging lens according to a tenth embodiment of the present application;

fig. 50 is a graph of chromatic aberration of magnification of an optical imaging lens according to a tenth embodiment of the present application;

fig. 51 is a schematic configuration diagram of an optical imaging lens according to eleventh embodiment of the present application;

fig. 52 is a spherical aberration curve chart of an optical imaging lens according to the eleventh embodiment of the present application;

fig. 53 is an astigmatism graph of an optical imaging lens according to an eleventh embodiment of the present application;

fig. 54 is a distortion graph of an optical imaging lens according to eleventh embodiment of the present application;

fig. 55 is a graph of chromatic aberration of magnification of an optical imaging lens according to eleventh embodiment of the present application.

In the figure:

100. an optical imaging lens; 101. a first lens; 102. a second lens; 103. a third lens; 104. a fourth lens; 105. a fifth lens; 106. an optical filter; 107. an image sensor.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

For convenience of understanding, technical terms related to the present application are explained and described below.

TTL is the distance from the object side surface of the first lens to the imaging surface of the optical imaging lens on the optical axis;

ImgH is the maximum image height of the optical imaging lens;

EPD is the entrance pupil diameter of the optical imaging lens;

f is the total effective focal length of the optical imaging lens;

f123 is a combined focal length of the first lens, the second lens, and the third lens;

f45 is the combined focal length of the fourth lens and the fifth lens;

f5 is the effective focal length of the fifth lens;

CT4 is the center thickness of the fourth lens on the optical axis;

CT5 is the central thickness of the fifth lens on the optical axis;

ET4 is the edge thickness of the fourth lens;

ET5 is the edge thickness of the fifth lens;

SAG42 is the distance on the optical axis from the intersection point 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;

SAG51 is the distance on the optical axis from the intersection point 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;

DT11 is the maximum effective radius of the object side of the first lens;

DT52 is the maximum effective radius of the image side surface of the fifth lens;

t34 is a distance between the third lens and the fourth lens on the optical axis.

As shown in fig. 1, an optical imaging lens 100 according to an embodiment of the present application includes 5 lenses. For convenience of description, the left side of the optical imaging lens 100 is defined as the object side (hereinafter also referred to as the object side), the surface of the lens facing the object side may be referred to as the object side surface, the surface of the lens facing the object side may also be referred to as the surface of the lens near the object side, the right side of the optical imaging lens 100 is defined as the image side (hereinafter also referred to as the image side), the surface of the lens facing the image side may also be referred to as the image side surface, and the image side surface may also be referred to as the surface of the lens near the image side. The optical imaging lens 100 according to the embodiment of the present application includes, in order from an object side to an image side: a first lens 101, a second lens 102, a third lens 103, a fourth lens 104, and a fifth lens 105; a stop may also be provided before the first lens 101. An image sensor 107, such as a CCD, CMOS, etc., may also be disposed after the fifth lens 105. A filter 106, such as a flat infrared cut filter or the like, may also be provided between the fifth lens 105 and the image sensor 107. The optical imaging lens 100 is described in detail below.

It should be noted that, for convenience of understanding and description, the embodiment of the present application defines a representation form of relevant parameters of the optical imaging lens, for example, TTL represents a distance from an object side surface of the first lens element to an imaging surface of the optical imaging lens on an optical axis; ImgH represents the maximum image height of the optical imaging lens, and the letter representation of similar definition is only schematic, but may be represented in other forms, and the application is not limited in any way.

It should also be noted that the units of the parameters related to the ratio in the following relations are kept consistent, for example, the units of numerator are millimeters (mm), and the units of denominator are also millimeters.

The positive and negative of the curvature radius indicate that the optical surface is convex toward the object side or convex toward the image side, and when the optical surface (including the object side surface or the image side surface) is convex toward the object side, the curvature radius of the optical surface is a positive value; when the optical surface (including the object side surface or the image side surface) is convex toward the image side, the optical surface is concave toward the object side, and the radius of curvature of the optical surface is negative.

It should be noted that the shape of the lens, and the degree of the concave-convex of the object side surface and the image side surface in the drawings are only schematic, and do not limit the embodiments of the present application. In this application, the material of the lens may be resin (resin), plastic (plastic), or glass (glass). The lens comprises a spherical lens and an aspherical lens. The lens can be a fixed focal length lens or a zoom lens, and can also be a standard lens, a short-focus lens or a long-focus lens.

Referring to fig. 1, a dotted line in fig. 1 is used to indicate an optical axis of the lens.

The optical imaging lens 100 of the present embodiment includes, in order from an object side to an image side:

a first lens 101, a second lens 102, a third lens 103, a fourth lens 104, and a fifth lens 105.

It should be understood that the above-mentioned "respective lenses of the optical imaging lens" refer to lenses constituting the optical imaging lens, and in the embodiment of the present application, the first lens, the second lens, the third lens, the fourth lens, and the fifth lens.

Alternatively, in the embodiments of the present application,

the first lens 101 may have positive optical power, the object side surface of the first lens 101 being convex near the optical axis; the image side surface of the first lens 101 is concave near the optical axis;

the second lens 102 can have a negative optical power, the object side surface of the second lens 102 being concave near the optical axis, the image side surface of the second lens 102 being concave near the optical axis;

the third lens 103 may have positive optical power, an object-side surface of the third lens 103 being convex near the optical axis, an image-side surface of the third lens 103 being convex near the optical axis;

the fourth lens 104 may have positive optical power, an object-side surface of the fourth lens 104 being concave near the optical axis, and an image-side surface of the fourth lens 104 being convex near the optical axis;

the fifth lens 105 may have a negative optical power, an object-side surface of the fifth lens 105 being concave near the optical axis, and an image-side surface of the fifth lens 105 being concave near the optical axis.

The optical imaging lens 100 satisfies the following relation:

TTL/ImgH<1.55，-0.6<CT4/f5<-0.2，0.75<SAG42/SAG51<1.37。

the above relation specifies TTL/ImgH <1.55, preferably TTL/ImgH < 1.43. Under the condition that the size of the image sensor 107 is fixed, the optical total length can be shortened, the overall thickness of the optical imaging lens 100 can be reduced, and the occupied space of the optical imaging lens 100 can be reduced.

The above relation defines-0.6 < CT4/f5< -0.2, preferably-0.49 < CT4/f5< -0.31, which can effectively control the distortion of the optical imaging lens 100 and make the imaging of the optical imaging lens 100 clearer.

The above relation specifies 0.75< SAG42/SAG51<1.37, preferably 0.91< SAG42/SAG51<1.25, which is advantageous for securing the workability of the fourth lens and the fifth lens, facilitating the molding and assembling thereof, and obtaining good image quality. If the ratio of SAG42 to SAG51 is not reasonable, the surface shapes of the fourth lens and the fifth lens are difficult to adjust, and in addition, obvious deformation occurs after assembly, and the imaging quality of an optical imaging lens applying the lenses is difficult to ensure.

In certain implementations of the first aspect, the optical imaging lens satisfies: 0.35< DT11/DT52<0.50, preferably 0.35< DT11/DT52< 0.42; by limiting DT11/DT52 within a reasonable range, the vignetting value of the optical imaging lens can be effectively controlled, part of light rays with poor optical imaging quality can be intercepted, the imaging quality of the optical imaging lens is improved, the aperture of the first lens 101 is large, and the optical imaging lens can be ensured to absorb sufficient luminous flux, so that the resolving power and the relative illumination of the whole optical imaging lens can be improved; meanwhile, the problem of large section difference caused by overlarge caliber difference between the first lens 101 and the fifth lens 105 can be avoided, the whole structure of the optical imaging lens is more symmetrical and balanced, and the stability of assembly is ensured.

In certain implementations of the first aspect, the optical imaging lens satisfies: 1.45< ET5/ET4<2.4, preferably 1.70< ET5/ET4< 2.3; the reasonable control of the edge thickness of the fourth lens 104 and the fifth lens 105 can make the lenses easy to be injection molded, improve the processability of the imaging system and ensure better imaging quality.

In certain implementations of the first aspect, the optical imaging lens satisfies: -0.3< f123/f45<0.15, preferably

-0.19< f123/f45< 0; the tolerance sensitivity of each lens is balanced, and the total length of the optical imaging lens is reduced.

In certain implementations of the first aspect, the optical imaging lens satisfies: 0.9< CT4/T34<1.82, preferably 1.0< CT4/T34< 1.80; the optical imaging lens system can be beneficial to reasonably distributing the on-axis space of the optical imaging lens and enables the structure of the optical imaging lens to be more compact.

In certain implementations of the first aspect, the optical imaging lens satisfies: 1.7< CT4/CT5<2.61, preferably 1.8< CT4/CT5< 2.60; the central thicknesses of the fourth lens and the fifth lens are reasonably configured, so that the thickness sensitivity of the lens can be effectively reduced, and the lens system can meet the requirement of processability.

In certain implementations of the first aspect, the optical imaging lens satisfies: 1.7< f/EPD <1.9, preferably 1.80< f/EPD < 1.86; the system has the advantage of large aperture in the process of increasing the light flux, so that the imaging effect in a dark environment is enhanced while the aberration of the marginal field of view is reduced.

In certain implementations of the first aspect, the optical imaging lens satisfies: 0.55< EPD/ImgH <0.75, preferably 0.63< EPD/ImgH < 0.72; the ratio of the diameter of the entrance pupil of the optical imaging system to the image height is controlled, so that the relative aperture of the optical imaging lens is favorably improved, the light transmission amount of the optical imaging lens is further increased, and the illumination of the optical imaging lens is favorably improved.

In certain implementations of the first aspect, the optical imaging lens satisfies: 1.1< TTL/f <1.3, preferably 1.21< TTL/f < 1.29; the miniaturization characteristic of the lens can be embodied. In addition, by controlling the total effective focal length of the lens within a reasonable range, the field angle of the lens can be further controlled.

In a second aspect, a camera module is provided, which includes the optical imaging lens in any one of the possible implementation manners of the first aspect, and may further include an image sensor, an analog-to-digital converter, an image processor, a memory, and the like, to implement a camera function of the optical imaging lens.

Some specific, but non-limiting examples of embodiments of the present application will be described in more detail below in conjunction with fig. 2-34.

In the embodiment of the present application, the material of each lens of the optical imaging lens 100 is not particularly limited.

Example one

The optical imaging lens 100 of an embodiment of the present application, in order from an object side to an image side, includes: a first lens 101, a second lens 102, a third lens 103, a fourth lens 104, and a fifth lens 105, as shown in fig. 1.

For convenience of description, in the following embodiments, STO denotes a surface of a diaphragm, S1 denotes an object-side surface of the first lens 101, S2 denotes an image-side surface of the first lens 101, S3 denotes an object-side surface of the second lens 102, S4 denotes an image-side surface of the second lens 102, S5 denotes an object-side surface of the third lens 103, S6 denotes an image-side surface of the third lens 103, S7 denotes an object-side surface of the fourth lens 104, S8 denotes an image-side surface of the fourth lens 104, S9 denotes an object-side surface of the fifth lens 105, S10 denotes an image-side surface of the fifth lens 105, S11 denotes an object-side surface of an infrared filter, S12 denotes an image-side surface of the infrared filter, and S13 denotes an image-forming surface. The total optical length of the optical imaging lens 100 is represented by TTL, the maximum image height of the optical imaging lens 100 is represented by ImgH, and the effective focal length of the optical imaging lens 100 is represented by EFL. The ith-order aspheric coefficients are represented by α i, i is 4, 6, 8, 10, 12, 14, 16, 18, 20, and the cone coefficients are represented by K.

In light of the above relations, table 1 shows the effective focal length EFL, the full field angle FOV, the total optical length TTL, the aperture Fno, the surface type, the curvature radius, the thickness, the refractive index of the material, and the conic coefficient of the optical imaging lens 100 in the first embodiment, where the curvature radius and the thickness are both in millimeters (mm), as shown in table 1:

TABLE 1

Table 2 shows aspheric coefficients of the optical imaging lens 100 according to the first embodiment of the present application, as shown in table 2:

TABLE 2

Wherein the non-curved surface of each lens of the image pickup optical lens 100 satisfies:

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 the conic constant (given in table 1 above); ai is a correction coefficient of the i-n th order of the aspherical surface, and the coefficients of the high-order terms a4, a6, A8, a10, a12, a14, a16, a18, and a20 of the respective lens surfaces S1-S10 are shown in table 2.

It should be understood that the aspheric surfaces of the lenses in the optical imaging lens 100 may use the aspheric surface shown in the above aspheric surface formula, and may also use other aspheric surface formulas, which are not limited in this application.

Given the design data of the optical imaging lens 100 according to the first embodiment of the present application, the effective focal length EFL is 4.109mm, the full field angle FOV is 77 degrees, the total optical length TTL is 4.896mm, and the F-stop value Fno is 1.841.

In one embodiment provided by the present application, a ratio of the total optical length TTL to the maximum image height ImgH of the optical imaging lens satisfies: TTL/ImgH is 1.498.

In one embodiment provided by the present application, a ratio of a center thickness of the fourth lens on the optical axis to an effective focal length of the fifth lens satisfies: CT4/f5 ═ 0.495.

In one embodiment provided by the present application, a ratio of a distance on the optical axis from an intersection point of an image-side surface of the fourth lens and the optical axis to an effective radius vertex of the image-side surface of the fourth lens to a distance on the optical axis from an intersection point of an object-side surface of the fifth lens and the optical axis to an effective radius vertex of an object-side surface of the fifth lens satisfies: SAG42/SAG51 is 1.25.

In one embodiment provided herein, DT11/DT52 is 0.404.

In one embodiment provided herein, ET5/ET4 is 2.239.

In one embodiment provided herein, f123/f45 is-0.166.

In one embodiment provided herein, CT4/T34 is 1.632.

In one embodiment provided herein, CT4/CT5 is 2.006.

In one embodiment provided herein, f/EPD is 1.841.

In one embodiment provided herein, EPD/ImgH is 0.683.

In one embodiment provided herein, TTL/f is 1.191.

Fig. 2 to 5 illustrate the optical performance of the optical imaging lens 100 designed in such a lens combination according to the embodiment.

In the first embodiment, the optical imaging lens meets the requirement of small TTL, and can obtain higher imaging performance.

Example two

The optical imaging lens 100 of an embodiment of the present application, in order from an object side to an image side, includes: first lens 101, second lens 102, third lens 103, fourth lens 104, and fifth lens 105, as shown in fig. 6.

In light of the above relations, table 3 shows the effective focal length EFL, the full field angle FOV, the total optical length TTL, the aperture Fno, the surface type, the curvature radius, the thickness, the refractive index of the material, and the conic coefficient of the optical imaging lens 100 in the second embodiment, where the curvature radius and the thickness are both in millimeters (mm), as shown in table 3:

TABLE 3

Table 4 shows aspheric coefficients of the optical imaging lens 100 according to the second embodiment of the present application, as shown in table 4:

TABLE 4

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 3 above); k is the conic constant (given in table 3 above); ai is a correction coefficient of the i-n th order of the aspherical surface, and the coefficients of the high-order terms a4, a6, A8, a10, a12, a14, a16, a18, and a20 of the respective lens surfaces S1 through S10 are shown in table 4.

Given the design data of the optical imaging lens 100 according to the second embodiment of the present application, the effective focal length EFL is 3.956mm, the full field angle FOV is 79 degrees, the total optical length TTL is 4.823mm, and the F-stop Fno is 1.859.

In one embodiment provided by the present application, a ratio of the total optical length TTL to the maximum image height ImgH of the optical imaging lens satisfies: TTL/ImgH is 1.437.

In one embodiment provided by the present application, a ratio of a center thickness of the fourth lens on the optical axis to an effective focal length of the fifth lens satisfies: CT4/f5 ═ 0.597.

In one embodiment provided by the present application, a ratio of a distance on the optical axis from an intersection point of an image-side surface of the fourth lens and the optical axis to an effective radius vertex of the image-side surface of the fourth lens to a distance on the optical axis from an intersection point of an object-side surface of the fifth lens and the optical axis to an effective radius vertex of an object-side surface of the fifth lens satisfies: SAG42/SAG51 is 1.265.

In one embodiment provided herein, DT11/DT52 is 0.388.

In one embodiment provided herein, ET5/ET4 is 2.308.

In one embodiment provided herein, f123/f45 is-0.144.

In one embodiment provided herein, CT4/T34 is 1.804.

In one embodiment provided herein, CT4/CT5 is 2.598.

In one embodiment provided herein, f/EPD is 1.859.

In one embodiment provided herein, EPD/ImgH is 0.641.

In one embodiment provided herein, TTL/f is 1.219.

Fig. 7 to 10 illustrate the optical performance of the optical imaging lens 100 designed in such a manner as to combine two lenses according to the embodiment.

In the second embodiment, the optical imaging lens meets the requirement of small TTL, and can obtain higher imaging performance.

EXAMPLE III

The optical imaging lens 100 of an embodiment of the present application, in order from an object side to an image side, includes: first lens 101, second lens 102, third lens 103, fourth lens 104, and fifth lens 105, as shown in fig. 11.

In light of the above relations, table 5 shows the effective focal length EFL, the full field angle FOV, the total optical length TTL, the aperture Fno, the surface type, the curvature radius, the thickness, the material refractive index, and the conic coefficient of the optical imaging lens 100 in the third embodiment, where the unit of the curvature radius and the thickness is millimeters (mm), as shown in table 5:

TABLE 5

Table 6 shows aspheric coefficients of the optical imaging lens 100 according to the third embodiment of the present application, as shown in table 6:

TABLE 6

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 5 above); k is the conic constant (given in table 5 above); ai is a correction coefficient of the i-n th order of the aspherical surface, and the coefficients of the high-order terms a4, a6, A8, a10, a12, a14, a16, a18, and a20 of the respective lens surfaces S1 through S10 are shown in table 6.

Given the design data of the optical imaging lens 100 according to the third embodiment of the present application, the effective focal length EFL is 4.112mm, the full field angle FOV is 76.967 degrees, the total optical length TTL is 4.723mm, and the F-stop value Fno is 1.831.

In one embodiment provided by the present application, a ratio of the total optical length TTL to the maximum image height ImgH of the optical imaging lens satisfies: TTL/ImgH is 1.430.

In one embodiment provided by the present application, a ratio of a center thickness of the fourth lens on the optical axis to an effective focal length of the fifth lens satisfies: CT4/f5 is-0.202.

In one embodiment provided by the present application, a ratio of a distance on the optical axis from an intersection point of an image-side surface of the fourth lens and the optical axis to an effective radius vertex of the image-side surface of the fourth lens to a distance on the optical axis from an intersection point of an object-side surface of the fifth lens and the optical axis to an effective radius vertex of an object-side surface of the fifth lens satisfies: SAG42/SAG51 equals 0.85.

In one embodiment provided herein, DT11/DT52 is 0.422.

In one embodiment provided herein, ET5/ET4 is 2.303.

In one embodiment provided herein, f123/f45 is-0.195.

In one embodiment provided herein, CT4/T34 is 0.952.

In one embodiment provided herein, CT4/CT5 is 1.801.

In one embodiment provided herein, f/EPD is 1.831.

In one embodiment provided herein, EPD/ImgH is 0.676.

In one embodiment provided herein, TTL/f is 1.149.

Fig. 12 to 15 illustrate the optical performance of the optical imaging lens 100 designed in such a lens combination as the third embodiment.

In the third embodiment, the optical imaging lens meets the requirement of small TTL, and can obtain higher imaging performance.

Example four

The optical imaging lens 100 of an embodiment of the present application, in order from an object side to an image side, includes: first lens 101, second lens 102, third lens 103, fourth lens 104, and fifth lens 105, as shown in fig. 16.

In light of the above relations, table 7 shows the effective focal length EFL, the full field angle FOV, the total optical length TTL, the aperture Fno, the surface type, the curvature radius, the thickness, the material refractive index, and the conic coefficient of the optical imaging lens 100 in the fourth embodiment, where the unit of the curvature radius and the thickness is millimeters (mm), as shown in table 7:

TABLE 7

Table 8 shows aspheric coefficients of the optical imaging lens 100 according to the fourth embodiment of the present application, as shown in table 8:

TABLE 8

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 7 above); k is the conic constant (given in table 7 above); ai is a correction coefficient of the i-n th order of the aspherical surface, and the coefficients of the high-order terms a4, a6, A8, a10, a12, a14, a16, a18, and a20 of the respective lens surfaces S1 through S10 are shown in table 8.

Given the design data of the optical imaging lens 100 according to the fourth embodiment of the present application, the effective focal length EFL is 4.105mm, the full field angle FOV is 77.068 degrees, the total optical length TTL is 4.881mm, and the F-stop value Fno is 1.844.

In one embodiment provided by the present application, a ratio of the total optical length TTL to the maximum image height ImgH of the optical imaging lens satisfies: TTL/ImgH is 1.467.

In one embodiment provided by the present application, a ratio of a center thickness of the fourth lens on the optical axis to an effective focal length of the fifth lens satisfies: CT4/f5 is-0.475.

In one embodiment provided by the present application, a ratio of a distance on the optical axis from an intersection point of an image-side surface of the fourth lens and the optical axis to an effective radius vertex of the image-side surface of the fourth lens to a distance on the optical axis from an intersection point of an object-side surface of the fifth lens and the optical axis to an effective radius vertex of an object-side surface of the fifth lens satisfies: SAG42/SAG51 is 0.756.

In one embodiment provided herein, DT11/DT52 is 0.421.

In one embodiment provided herein, ET5/ET4 is 1.702.

In one embodiment provided herein, f123/f45 is-0.247.

In one embodiment provided herein, CT4/T34 is 1.612.

In one embodiment provided herein, CT4/CT5 is 1.729.

In one embodiment provided herein, f/EPD is 1.844.

In one embodiment provided herein, EPD/ImgH is 0.671.

In one embodiment provided herein, TTL/f is 1.189.

Fig. 17 to 20 illustrate the optical performance of the optical imaging lens 100 designed in the four lens combinations of the embodiment.

In the fourth embodiment, the optical imaging lens meets the requirement of small TTL, and can also obtain higher imaging performance.

EXAMPLE five

The optical imaging lens 100 of an embodiment of the present application, in order from an object side to an image side, includes: first lens 101, second lens 102, third lens 103, fourth lens 104, and fifth lens 105, as shown in fig. 21.

In light of the above relations, table 9 shows the effective focal length EFL, the full field angle FOV, the total optical length TTL, the aperture Fno, the surface type, the curvature radius, the thickness, the material refractive index, and the conic coefficient of the optical imaging lens 100 in the fifth embodiment, where the unit of the curvature radius and the thickness is millimeters (mm), as shown in table 9:

TABLE 9

Table 10 shows aspheric coefficients of the optical imaging lens 100 according to the fifth embodiment of the present application, as shown in table 10:

watch 10

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 9 above); k is the conic constant (given in table 9 above); ai is a correction coefficient of the i-n th order of the aspherical surface, and the coefficients of the high-order terms a4, a6, A8, a10, a12, a14, a16, a18, and a20 of the respective lens surfaces S1 through S10 are shown in table 10.

Given the design data of the optical imaging lens 100 according to the fifth embodiment of the present application, the effective focal length EFL is 4.010mm, the full field angle FOV is 78.375 degrees, the total optical length TTL is 5.196mm, and the F-stop value Fno is 1.854.

In one embodiment provided by the present application, a ratio of the total optical length TTL to the maximum image height ImgH of the optical imaging lens satisfies: TTL/ImgH is 1.543.

In one embodiment provided by the present application, a ratio of a center thickness of the fourth lens on the optical axis to an effective focal length of the fifth lens satisfies: CT4/f5 ═ 0.598.

In one embodiment provided by the present application, a ratio of a distance on the optical axis from an intersection point of an image-side surface of the fourth lens and the optical axis to an effective radius vertex of the image-side surface of the fourth lens to a distance on the optical axis from an intersection point of an object-side surface of the fifth lens and the optical axis to an effective radius vertex of an object-side surface of the fifth lens satisfies: SAG42/SAG51 is 1.298.

In one embodiment provided herein, DT11/DT52 is 0.374.

In one embodiment provided herein, ET5/ET4 is 1.799.

In one embodiment provided herein, f123/f45 is 0.144.

In one embodiment provided herein, CT4/T34 is 1.803.

In one embodiment provided herein, CT4/CT5 is 1.802.

In one embodiment provided herein, f/EPD is 1.854.

In one embodiment provided herein, EPD/ImgH is 0.647.

In one embodiment provided herein, TTL/f is 1.296.

Fig. 22 to 25 illustrate the optical performance of the optical imaging lens 100 designed in such a lens combination as described in example five.

In the fifth embodiment, the optical imaging lens meets the requirement of small TTL, and can also obtain higher imaging performance.

EXAMPLE six

The optical imaging lens 100 of an embodiment of the present application, in order from an object side to an image side, includes: first lens 101, second lens 102, third lens 103, fourth lens 104, and fifth lens 105, as shown in fig. 26.

In light of the above relations, table 11 shows the effective focal length EFL, the full field angle FOV, the total optical length TTL, the aperture Fno, the surface type, the curvature radius, the thickness, the material refractive index, and the conic coefficient of the optical imaging lens 100 in the sixth embodiment, where the curvature radius and the thickness are both in millimeters (mm), as shown in table 11:

TABLE 11

Table 12 shows aspheric coefficients of the optical imaging lens 100 according to the sixth embodiment of the present application, as shown in table 12:

TABLE 12

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 11 above); k is the conic constant (given in table 11 above); ai is a correction coefficient of the i-n th order of the aspherical surface, and the coefficients of the high-order terms a4, a6, A8, a10, a12, a14, a16, a18, and a20 of the respective lens surfaces S1 through S10 are shown in table 12.

Given the design data of the optical imaging lens 100 according to the sixth embodiment of the present application, the effective focal length EFL is 4.413mm, the full field angle FOV is 73.051 degrees, the total optical length TTL is 4.954mm, and the F-stop value Fno is 1.823.

In one embodiment provided by the present application, a ratio of a center thickness of the fourth lens on the optical axis to an effective focal length of the fifth lens satisfies: CT4/f 5-0.375.

In one embodiment provided by the present application, a ratio of a distance on the optical axis from an intersection point of an image-side surface of the fourth lens and the optical axis to an effective radius vertex of the image-side surface of the fourth lens to a distance on the optical axis from an intersection point of an object-side surface of the fifth lens and the optical axis to an effective radius vertex of an object-side surface of the fifth lens satisfies: SAG42/SAG 51-0.831.

In one embodiment provided herein, DT11/DT52 is 0.498.

In one embodiment provided herein, ET5/ET4 is 1.479.

In one embodiment provided herein, f123/f45 is-0.191.

In one embodiment provided herein, CT4/T34 is 1.113.

In one embodiment provided herein, CT4/CT5 is 2.593.

In one embodiment provided herein, f/EPD is 1.823.

In one embodiment provided herein, EPD/ImgH is 0.725.

In one embodiment provided herein, TTL/f is 1.123.

Fig. 27 to 30 illustrate the optical performance of the optical imaging lens 100 designed in such a lens combination as six embodiments.

In the sixth embodiment, the optical imaging lens meets the requirement of small TTL, and can also obtain higher imaging performance.

EXAMPLE seven

The optical imaging lens 100 of an embodiment of the present application, in order from an object side to an image side, includes: first lens 101, second lens 102, third lens 103, fourth lens 104, and fifth lens 105, as shown in fig. 31.

In light of the above relations, table 13 shows the effective focal length EFL, the full field angle FOV, the total optical length TTL, the aperture Fno, the surface type, the radius of curvature, the thickness, the refractive index of the material, and the conic coefficient of the optical imaging lens 100 in the seventh embodiment, where the radius of curvature and the thickness are both in millimeters (mm), as shown in table 13:

watch 13

Table 14 shows aspheric coefficients of the optical imaging lens 100 according to the seventh embodiment of the present application, as shown in table 14:

TABLE 14

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 13 above); k is the conic constant (given in table 13 above); ai is a correction coefficient of the i-n th order of the aspherical surface, and the coefficients of the high-order terms a4, a6, A8, a10, a12, a14, a16, a18, and a20 of the respective lens surfaces S1 through S10 are shown in table 14.

Given the design data of the optical imaging lens 100 according to the seventh embodiment of the present application, the effective focal length EFL is 3.904mm, the full field angle FOV is 79.881 degrees, the total optical length TTL is 4.737mm, and the F-stop value Fno is 1.858.

In one embodiment provided by the present application, a ratio of the total optical length TTL to the maximum image height ImgH of the optical imaging lens satisfies: TTL/ImgH is 1.407.

In one embodiment provided by the present application, a ratio of a center thickness of the fourth lens on the optical axis to an effective focal length of the fifth lens satisfies: CT4/f5 is-0.542.

In one embodiment provided by the present application, a ratio of a distance on the optical axis from an intersection point of an image-side surface of the fourth lens and the optical axis to an effective radius vertex of the image-side surface of the fourth lens to a distance on the optical axis from an intersection point of an object-side surface of the fifth lens and the optical axis to an effective radius vertex of an object-side surface of the fifth lens satisfies: SAG42/SAG51 is 1.348.

In one embodiment provided herein, DT11/DT52 is 0.351.

In one embodiment provided herein, ET5/ET4 is 1.727.

In one embodiment provided herein, f123/f45 is-0.164.

In one embodiment provided herein, CT4/T34 is 1.816.

In one embodiment provided herein, CT4/CT5 is 2.590.

In one embodiment provided herein, f/EPD is 1.858.

In one embodiment provided herein, EPD/ImgH is 0.630.

In one embodiment provided herein, TTL/f is 1.213.

Fig. 32 to 35 illustrate the optical performance of the optical imaging lens 100 designed in such a lens combination as described in embodiment seven.

In the seventh embodiment, the optical imaging lens meets the requirement of small TTL, and can also obtain higher imaging performance.

Example eight

The optical imaging lens 100 of an embodiment of the present application, in order from an object side to an image side, includes: first lens 101, second lens 102, third lens 103, fourth lens 104, and fifth lens 105, as shown in fig. 36.

In light of the above relations, table 15 shows the effective focal length EFL, the full field angle FOV, the total optical length TTL, the aperture Fno, the surface type, the radius of curvature, the thickness, the refractive index of the material, and the conic coefficient of the optical imaging lens 100 in the eighth embodiment, where the radius of curvature and the thickness are both in millimeters (mm), as shown in table 15:

watch 15

Table 16 shows aspheric coefficients of the optical imaging lens 100 according to the eighth embodiment of the present application, as shown in table 16:

TABLE 16

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 15 above); k is the conic constant (given in table 15 above); ai is a correction coefficient of the i-n th order of the aspherical surface, and the coefficients of the high-order terms a4, a6, A8, a10, a12, a14, a16, a18, and a20 of the respective lens surfaces S1 through S10 are shown in table 16.

Given the design data of the optical imaging lens 100 according to the eighth embodiment of the present application, the effective focal length EFL is 4.120mm, the full field angle FOV is 76.856 degrees, the total optical length TTL is 4.999mm, and the F-stop value Fno is 1.720.

In one embodiment provided by the present application, a ratio of the total optical length TTL to the maximum image height ImgH of the optical imaging lens satisfies: TTL/ImgH is 1.492.

In one embodiment provided by the present application, a ratio of a center thickness of the fourth lens on the optical axis to an effective focal length of the fifth lens satisfies: CT4/f5 ═ 0.435.

In one embodiment provided by the present application, a ratio of a distance on the optical axis from an intersection point of an image-side surface of the fourth lens and the optical axis to an effective radius vertex of the image-side surface of the fourth lens to a distance on the optical axis from an intersection point of an object-side surface of the fifth lens and the optical axis to an effective radius vertex of an object-side surface of the fifth lens satisfies: SAG42/SAG51 is 1.362.

In one embodiment provided herein, DT11/DT52 is 0.412.

In one embodiment provided herein, ET5/ET4 is 2.254.

In one embodiment provided herein, f123/f45 is-0.034.

In one embodiment provided herein, CT4/T34 is 1.775.

In one embodiment provided herein, CT4/CT5 is 2.600.

In one embodiment provided herein, f/EPD is 1.708.

In one embodiment provided herein, EPD/ImgH is 0.720.

In one embodiment provided herein, TTL/f is 1.213.

Fig. 37 to 40 illustrate optical performance of the optical imaging lens 100 designed in such a lens combination as the eighth embodiment.

In the eighth embodiment, the optical imaging lens meets the requirement of small TTL, and can also obtain higher imaging performance.

Example nine

The optical imaging lens 100 of an embodiment of the present application, in order from an object side to an image side, includes: first lens 101, second lens 102, third lens 103, fourth lens 104, and fifth lens 105, as shown in fig. 41.

In light of the above relations, table 17 shows the effective focal length EFL, the full field angle FOV, the total optical length TTL, the aperture Fno, the surface type, the radius of curvature, the thickness, the refractive index of the material, and the conic coefficient of the optical imaging lens 100 in the ninth embodiment, where the radius of curvature and the thickness are both in millimeters (mm), as shown in table 17:

TABLE 17

Table 18 shows aspheric coefficients of the optical imaging lens 100 according to the ninth embodiment of the present application, as shown in table 18:

watch 18

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 17 above); k is the conic constant (given in table 17 above); ai is a correction coefficient of the i-n th order of the aspherical surface, and the coefficients of the high-order terms a4, a6, A8, a10, a12, a14, a16, a18, and a20 of the respective lens surfaces S1 through S10 are shown in table 18.

Given the design data of the optical imaging lens 100 according to the ninth embodiment of the present application, the effective focal length EFL is 3.391mm, the full field angle FOV is 87.897 degrees, the total optical length TTL is 4.129mm, and the F-stop value Fno is 1.868.

In one embodiment provided by the present application, a ratio of the total optical length TTL to the maximum image height ImgH of the optical imaging lens satisfies: TTL/ImgH is 1.237.

In one embodiment provided by the present application, a ratio of a center thickness of the fourth lens on the optical axis to an effective focal length of the fifth lens satisfies: CT4/f5 is-0.311.

In one embodiment provided by the present application, a ratio of a distance on the optical axis from an intersection point of an image-side surface of the fourth lens and the optical axis to an effective radius vertex of the image-side surface of the fourth lens to a distance on the optical axis from an intersection point of an object-side surface of the fifth lens and the optical axis to an effective radius vertex of an object-side surface of the fifth lens satisfies: SAG42/SAG51 is 0.91.

In one embodiment provided herein, DT11/DT52 is 0.355.

In one embodiment provided herein, ET5/ET4 is 1.829.

In one embodiment provided herein, f123/f45 ═ 0.009.

In one embodiment provided herein, CT4/T34 is 1.061.

In one embodiment provided herein, CT4/CT5 is 2.595.

In one embodiment provided herein, f/EPD is 1.868.

In one embodiment provided herein, EPD/ImgH is 0.552.

In one embodiment provided herein, TTL/f is 1.218.

Fig. 42 to 45 illustrate the optical performance of the optical imaging lens 100 designed in the lens combination of the ninth embodiment.

In the ninth embodiment, the optical imaging lens meets the requirement of small TTL, and can also obtain higher imaging performance.

Example ten

The optical imaging lens 100 of an embodiment of the present application, in order from an object side to an image side, includes: first lens 101, second lens 102, third lens 103, fourth lens 104, and fifth lens 105, as shown in fig. 46.

In light of the above relationship, table 19 shows the effective focal length EFL, the full field angle FOV, the total optical length TTL, the aperture Fno, the surface type, the radius of curvature, the thickness, the refractive index of the material, and the conic coefficient of the optical imaging lens 100 in the tenth embodiment, where the radius of curvature and the thickness are both in millimeters (mm), as shown in table 19:

watch 19

Table 20 shows aspheric coefficients of the optical imaging lens 100 according to the tenth embodiment of the present application, as shown in table 20:

watch 20

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 19 above); k is the conic constant (given in table 19 above); ai is a correction coefficient of the i-n th order of the aspherical surface, and the coefficients of the high-order terms a4, a6, A8, a10, a12, a14, a16, a18, and a20 of the respective lens surfaces S1 through S10 are shown in table 20.

Given the design data of the optical imaging lens 100 according to the tenth embodiment of the present application, the effective focal length EFL is 4.254mm, the full field angle FOV is 75.084 degrees, the total optical length TTL is 4.703mm, and the F-stop value Fno is 1.806.

In one embodiment provided by the present application, a ratio of the total optical length TTL to the maximum image height ImgH of the optical imaging lens satisfies: TTL/ImgH is 1.427.

In one embodiment provided by the present application, a ratio of a center thickness of the fourth lens on the optical axis to an effective focal length of the fifth lens satisfies: CT4/f5 is-0.291.

In one embodiment provided by the present application, a ratio of a distance on the optical axis from an intersection point of an image-side surface of the fourth lens and the optical axis to an effective radius vertex of the image-side surface of the fourth lens to a distance on the optical axis from an intersection point of an object-side surface of the fifth lens and the optical axis to an effective radius vertex of an object-side surface of the fifth lens satisfies: SAG42/SAG51 is 0.912.

In one embodiment provided herein, DT11/DT52 is 0.468.

In one embodiment provided herein, ET5/ET4 is 1.702.

In one embodiment provided herein, f123/f45 is-0.297.

In one embodiment provided herein, CT4/T34 is 0.901.

In one embodiment provided herein, CT4/CT5 is 1.934.

In one embodiment provided herein, f/EPD is 1.806.

In one embodiment provided herein, EPD/ImgH is 0.701.

In one embodiment provided herein, TTL/f is 1.106.

Fig. 47 to 50 illustrate the optical performance of the optical imaging lens 100 designed in such a lens combination as the example ten.

In the tenth embodiment, the optical imaging lens meets the requirement of small TTL, and can also obtain higher imaging performance.

EXAMPLE eleven

The optical imaging lens 100 of an embodiment of the present application, in order from an object side to an image side, includes: first lens 101, second lens 102, third lens 103, fourth lens 104, and fifth lens 105, as shown in fig. 51.

In light of the above relations, table 21 shows the effective focal length EFL, the full field angle FOV, the total optical length TTL, the aperture Fno, the surface type, the radius of curvature, the thickness, the refractive index of the material, and the conic coefficient of the optical imaging lens 100 in the eleventh embodiment, where the radius of curvature and the thickness are both in millimeters (mm), as shown in table 21:

TABLE 21

Table 22 shows aspheric coefficients of the optical imaging lens 100 according to the eleventh embodiment of the present application, as shown in table 22:

TABLE 22

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 21 above); k is the conic constant (given in table 21 above); ai is a correction coefficient of the i-n th order of the aspherical surface, and the coefficients of the high-order terms a4, a6, A8, a10, a12, a14, a16, a18, and a20 of the respective lens surfaces S1 through S10 are shown in table 22.

Given the design data of the optical imaging lens 100 according to the eleventh embodiment of the present application, the effective focal length EFL is 4.044mm, the full field angle FOV is 77.001 degrees, the total optical length TTL is 4.760mm, and the F-stop value Fno is 1.848.

In one embodiment provided by the present application, a ratio of the total optical length TTL to the maximum image height ImgH of the optical imaging lens satisfies: TTL/ImgH is 1.456.

In one embodiment provided by the present application, a ratio of a center thickness of the fourth lens on the optical axis to an effective focal length of the fifth lens satisfies: CT4/f5 is-0.433.

In one embodiment provided by the present application, a ratio of a distance on the optical axis from an intersection point of an image-side surface of the fourth lens and the optical axis to an effective radius vertex of the image-side surface of the fourth lens to a distance on the optical axis from an intersection point of an object-side surface of the fifth lens and the optical axis to an effective radius vertex of an object-side surface of the fifth lens satisfies: SAG42/SAG51 equals 0.970.

In one embodiment provided herein, DT11/DT52 is 0.421.

In one embodiment provided herein, ET5/ET4 is 2.022.

In one embodiment provided herein, f123/f45 is-0.175.

In one embodiment provided herein, CT4/T34 is 1.373.

In one embodiment provided herein, CT4/CT5 is 2.269.

In one embodiment provided herein, f/EPD is 1.848.

In one embodiment provided herein, EPD/ImgH is 0.672.

In one embodiment provided herein, TTL/f is 1.177.

Fig. 52 to 55 illustrate the optical performance of the optical imaging lens 100 designed in such a lens combination as embodiment eleven.

In the eleventh embodiment, the optical imaging lens meets the requirement of small TTL, and can also obtain higher imaging performance.

In addition, TTL/ImgH ratio, CT4/f5 ratio, SAG42/SAG51 ratio, DT11/DT52 ratio, ET5/ET4 ratio, f123/f45 ratio, CT4/T34 ratio, CT4/CT5 ratio, f/EPD ratio, EPD/ImgH ratio, and TTL/f ratio corresponding to example one are shown in table 23:

TABLE 23

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The invention is not to be limited to the specific embodiments disclosed herein, but to other embodiments falling within the scope of the claims of 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 third lens having optical power;

a fourth lens having an optical power;

the optical imaging lens meets the following conditional expression:

TTL/ImgH<1.55，-0.6<CT4/f5<-0.2，0.75<SAG42/SAG51<1.37；

2. The optical imaging lens according to claim 1, wherein the optical imaging lens satisfies the following conditional expression:

0.35<DT11/DT52<0.50；

3. The optical imaging lens according to claim 1 or 2, characterized in that the optical imaging lens satisfies the following conditional expressions: 1.45< ET5/ET4< 2.4;

4. The optical imaging lens according to claim 3, wherein the optical imaging lens satisfies the following conditional expression:

-0.3<f123/f45<0.15；

5. The optical imaging lens according to claim 4, wherein the optical imaging lens satisfies the following conditional expression:

0.9<CT4/T34<1.82；

6. The optical imaging lens according to claim 4 or 5, characterized in that the optical imaging lens satisfies the following conditional expression: 1.7< CT4/CT5< 2.61;

7. The optical imaging lens according to claim 6, wherein the optical imaging lens satisfies the following conditional expression: 1.7< f/EPD < 1.9;

8. The optical imaging lens according to any one of claims 1 to 7, characterized in that the optical imaging lens satisfies the following conditional expressions:

0.55<EPD/ImgH<0.75；

9. The optical imaging lens according to claim 8, wherein the optical imaging lens satisfies the following conditional expression:

1.1<TTL/f<1.3；

10. A camera module, characterized in that it comprises an optical imaging lens according to any one of claims 1 to 9.