CN210136353U

CN210136353U - Optical imaging lens and electronic device

Info

Publication number: CN210136353U
Application number: CN201920884048.1U
Authority: CN
Inventors: 黄林; 戴付建; 赵烈烽
Original assignee: Zhejiang Sunny Optics Co Ltd
Current assignee: Zhejiang Sunny Optics Co Ltd
Priority date: 2019-06-13
Filing date: 2019-06-13
Publication date: 2020-03-10
Anticipated expiration: 2029-06-13

Abstract

The application provides an optical imaging lens and electronic equipment, wherein, the optical imaging lens includes a first lens with focal power, a second lens with focal power, a third lens with focal power and at least two subsequent lenses with focal power in order from an object side to an image side along an optical axis, a distance TTL between an object side surface of the first lens 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, and an optical portion of at least one lens in the lenses included in the optical imaging lens is trimmed on a Y axis, the maximum effective radius DY of the trimmed lens on the Y axis and the maximum effective radius DX on an X axis satisfy 0.5< DY/DX <1.0, and the X axis is perpendicular to the Y axis.

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 general, an ultra-long focal length optical imaging lens needs to obtain a sufficient light flux (i.e., a large aperture) because of its long focal length. Therefore, not only the TTL of the entire lens is increased, but also the entrance pupil diameter of the lens is increased. In this case, the height of the lens increases, and even if the height of the lens is reduced by turning the prism, the size of the lens in the Y-axis direction remains large, and it is difficult to satisfy the height restriction requirement of the lens module.

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 an optical power; a second lens having an optical power; a third lens having optical power; and at least two subsequent lenses with focal power, wherein the distance TTL between the object side surface of the first lens and the imaging surface of the optical imaging lens on the optical axis and the total effective focal length f of the optical imaging lens satisfy: TTL/f <1, and the optical part of at least one lens in the lenses contained in the optical imaging lens is trimmed on the Y axis, the maximum effective radius DY of the trimmed lens on the Y axis and the maximum effective radius DX on the X axis satisfy 0.5< DY/DX <1.0, and the X axis is perpendicular to the Y axis.

According to the embodiment of the present application, the optical portion of the first lens is edge-cut on the Y axis, and the maximum effective radius DT11Y of the object-side surface of the first lens on the Y axis and the maximum effective radius DT11X of the object-side surface of the first lens on the X axis satisfy: 0.5< DT11Y/DT11X < 1.0.

According to the embodiment of the application, the maximum effective radius DT12Y of the image side surface of the first lens on the Y axis and the maximum effective radius DT12X of the image side surface of the first lens on the X axis satisfy that: 0.5< DT12Y/DT12X < 1.0.

According to the embodiment of the application, the maximum effective radius DT21Y of the object side surface of the second lens on the Y axis and the maximum effective radius DT21X of the object side surface of the second lens on the X axis satisfy that: 0.5< DT21Y/DT21X is less than or equal to 1.0.

According to the embodiment of the application, the maximum effective radius DT22Y of the image side surface of the second lens on the Y axis and the maximum effective radius DT22X of the image side surface of the second lens on the X axis satisfy that: 0.5< DT22Y/DT22X is less than or equal to 1.0.

According to the embodiment of the application, the curvature radius R1 of the object side surface of the first lens and the effective focal length f1 of the first lens meet the following conditions: 0.2< R1/f1< 1.0.

According to the embodiment of the application, the curvature radius R5 of the object side surface of the third lens, the curvature radius R6 of the image side surface of the third lens and the total effective focal length f of the optical imaging lens satisfy: 0.3< (R5+ R6)/f < 0.8.

According to the embodiment of the application, the total effective focal length f of the optical imaging lens and the combined focal length f23 of the second lens and the third lens meet the following conditions: 0.5< f/f23< 1.5.

According to the embodiment of the present application, the radius of curvature R3 of the object-side surface of the second lens and the radius of curvature R4 of the image-side surface of the second lens satisfy: 0.2< (R3+ R4)/(R3-R4) < 1.3.

According to the embodiment of the present application, the at least two subsequent lenses include a fourth lens on the image side of the third lens and a fifth lens on the image side of the fourth lens, and an air space T12 on the optical axis of the first lens and the second lens, an air space T23 on the optical axis of the second lens and the third lens, an air space T34 on the optical axis of the third lens and the fourth lens, and an air space T45 on the optical axis of the fourth lens and the fifth lens satisfy: 0.1< (T12+ T23)/(T34+ T45) < 0.6.

According to an embodiment of the present application, the at least two subsequent lenses include a fourth lens on an image side of the third lens and a fifth lens on an image side of the fourth lens, and a central thickness CT3 of the third lens on the optical axis, a central thickness CT4 of the fourth lens on the optical axis, and a central thickness CT5 of the fifth lens on the optical axis satisfy: 0.2< CT5/(CT3+ CT4) < 0.7.

According to the embodiment of the present application, a projection distance SAG31 on the optical axis between an intersection point of the object-side surface of the third lens and the optical axis and an effective radius vertex of the object-side surface of the third 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: 0.3< SAG32/SAG31< 0.8.

According to the embodiment of the application, the maximum half field angle of the optical imaging lens is smaller than 25 degrees.

According to an embodiment of the present application, the optical power of the first lens is positive optical power, and the object-side surface of the first lens is convex.

According to an embodiment of the present application, the optical power of the second lens is a negative optical power, and the image-side surface of the second lens is a concave surface.

According to an embodiment of the present application, an object-side surface of the third lens element is convex and an image-side surface of the third lens element is concave.

According to an embodiment of the present application, the optical power of the fourth lens is a positive optical power.

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

The application provides an optical imaging lens has adopted the optical part to an at least lens in the lens to carry out the epaxial side cut of Y and has handled to effectively reduce the whole height of lens in the Y axle, guarantee under the condition of big light ring, can also satisfy the module size that enough hangs down, make above-mentioned optical imaging lens have miniaturized characteristics.

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 is a schematic diagram illustrating an optical imaging lens of an embodiment of the present application performing a trimming process on a Y axis;

fig. 2 is a schematic structural view showing an optical imaging lens according to embodiment 1 of the present application;

fig. 3A to 3C are diagrams respectively showing an axial chromatic aberration curve, an astigmatism curve, and a distortion curve of the optical imaging lens of embodiment 1;

fig. 4 is a schematic structural view showing an optical imaging lens according to embodiment 2 of the present application;

fig. 5A to 5C are diagrams respectively showing an axial chromatic aberration curve, an astigmatism curve, and a distortion curve of the optical imaging lens of embodiment 2;

fig. 6 is a schematic structural view showing an optical imaging lens according to embodiment 3 of the present application;

fig. 7A to 7C are diagrams respectively showing an axial chromatic aberration curve, an astigmatism curve, and a distortion curve of the optical imaging lens of embodiment 3;

fig. 8 is a schematic structural view showing an optical imaging lens according to embodiment 4 of the present application;

fig. 9A to 9C are diagrams respectively showing an axial chromatic aberration curve, an astigmatism curve, and a distortion curve of the optical imaging lens of embodiment 4;

fig. 10 is a schematic structural view showing an optical imaging lens according to embodiment 5 of the present application; and

fig. 11A to 11C are graphs respectively showing axial chromatic aberration curves, astigmatism curves, and distortion curves of the optical imaging lens of embodiment 5.

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.

In order to reduce the height of lens module, this application has adopted the mode of camera lens side cut to reduce the height of camera lens Y axle direction, guarantees under the condition of big light ring, can also satisfy the module size of enough lowness. The lens barrel can be subjected to edge cutting according to needs, the lens flange can be subjected to edge cutting, and even the optical part of the lens can be subjected to edge cutting. This application is for reducing the height of camera lens module, adopts the optics part to some lenses to carry out the side cut and handle to obtain corresponding optical imaging camera lens.

In view of the above 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 with a focal power, a second lens with a focal power, a third lens with a focal power, and at least two subsequent lenses with a focal power, wherein a distance TTL between an object side surface of the first lens 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, and an optical portion of at least one lens in the lenses included in the optical imaging lens is trimmed on a Y axis, the maximum effective radius DY of the trimmed lens on the Y axis and the maximum effective radius DX on an X axis satisfy 0.5< DY/DX <1.0, and the X axis is perpendicular to the Y axis.

Specifically, the optical imaging lens provided by the application comprises at least 5 lenses, wherein the optical part of at least one lens is subjected to edge cutting processing on the Y axis. Fig. 1 is a schematic diagram illustrating an optical imaging lens according to an embodiment of the present application, which performs a trimming process on a Y axis, as shown in fig. 1. The dotted line represents the edge-cut portion, and the solid line represents the lens contour shape after the edge-cut processing. After the lens is subjected to the edging process on the Y axis, the ratio between the maximum effective radius DY on the Y axis and the maximum effective radius DX on the X axis of the edged lens obtained is between 0.5 and 1.0. The height of the optical imaging lens is reduced, and meanwhile, the diffraction limits in the X-axis direction and the Y-axis direction are ensured not to be too large, so that the image quality of a picture is not uniform.

According to the embodiment of the present application, the optical portion of the first lens is cut on the Y axis, and the maximum effective radius DT11Y of the object-side surface of the first lens on the Y axis and the maximum effective radius DT11X of the object-side surface of the first lens on the X axis satisfy: 0.5< DT11Y/DT11X < 1.0. If the first lens influences the overall height of the optical imaging lens, the edge cutting processing on the Y axis can be carried out on the optical part of the first lens, and the proportion of the maximum effective radius of the object side surface of the first lens in the Y axis direction and the maximum effective radius of the object side surface of the first lens in the X axis direction is controlled within a reasonable range, so that the large aperture is realized, and the height of the first lens in the Y axis direction is reduced. In addition, the height of the optical imaging lens can be reduced, and the diffraction limits in the X-axis direction and the Y-axis direction are ensured not to be too large, so that the image quality of a picture is not uniform.

According to the embodiment of the application, the maximum effective radius DT12Y of the image side surface of the first lens on the Y axis and the maximum effective radius DT12X of the image side surface of the first lens on the X axis satisfy that: 0.5< DT12Y/DT12X < 1.0. As described above, this can ensure that the diffraction limits in both the X-axis and Y-axis directions are not too large to cause image quality unevenness of a screen while reducing the height of the optical imaging lens.

According to the embodiment of the application, the maximum effective radius DT21Y of the object side surface of the second lens on the Y axis and the maximum effective radius DT21X of the object side surface of the second lens on the X axis satisfy that: 0.5< DT21Y/DT21X is less than or equal to 1.0. If the second lens affects the overall height of the optical imaging lens, the edge cutting processing on the Y axis can be carried out on the optical part of the second lens, and the proportion of the maximum effective radius of the object side surface of the second lens in the Y axis direction and the maximum effective radius in the X axis direction is controlled within a reasonable range, so that the large aperture is realized, the height of the lens subjected to edge cutting in the Y axis direction is reduced, the optical imaging lens meets the requirement of the size height of a module, and the size space of a motor is increased. In addition, the height of the optical imaging lens can be reduced, and the diffraction limits in the X-axis direction and the Y-axis direction are ensured not to be too large, so that the image quality of a picture is not uniform.

According to the embodiment of the application, the maximum effective radius DT22Y of the image side surface of the second lens on the Y axis and the maximum effective radius DT22X of the image side surface of the second lens on the X axis satisfy that: 0.5< DT22Y/DT22X is less than or equal to 1.0. As described above, this helps to reduce the height of the trimmed lens in the Y-axis direction while achieving a large aperture, so that the optical imaging lens meets the size and height requirements of the module, and the motor size and space are increased. In addition, the height of the optical imaging lens can be reduced, and the diffraction limits in the X-axis direction and the Y-axis direction are ensured not to be too large, so that the image quality of a picture is not uniform.

According to the embodiment of the application, the curvature radius R1 of the object side surface of the first lens and the effective focal length f1 of the first lens meet the following conditions: 0.2< R1/f1<1.0, e.g. 0.47< R1/f1< 0.71. The proportional relation between the curvature radius of the object side surface of the first lens and the effective focal length of the first lens is reasonably controlled, the curvature of the object side surface of the first lens can be controlled, the optical sensitivity of the object side surface of the first lens is reduced, and therefore the system is better guaranteed to have a larger focal length.

According to the embodiment of the present application, the radius of curvature R5 of the object-side surface of the third lens, the radius of curvature R6 of the image-side surface of the third lens, and the total effective focal length f of the optical imaging lens satisfy: 0.3< (R5+ R6)/f <0.8, for example 0.47< (R5+ R6)/f < 0.73. The ratio of the sum of the curvature radii of the image side surface and the object side surface of the third lens to the total focal length of the system is reasonably controlled, so that the reasonable distribution of the focal power of the system is facilitated, and the high resolution performance of the system is improved.

According to the embodiment of the application, the total effective focal length f of the optical imaging lens and the combined focal length f23 of the second lens and the third lens meet the following conditions: 0.5< f/f23< 1.5. The ratio of the effective focal length of the optical imaging lens to the combined focal length of the second lens and the third lens is reasonably controlled, so that the excessive concentration of focal power can be effectively avoided, the aberration correction capability of the system is improved, and meanwhile, the high resolution performance of the system is improved through reasonable focal power distribution.

According to the embodiment of the present application, the radius of curvature R3 of the object-side surface of the second lens and the radius of curvature R4 of the image-side surface of the second lens satisfy: 0.2< (R3+ R4)/(R3-R4) < 1.3. The ratio of the sum and difference of the curvature radius R3 of the object side surface of the second lens and the curvature radius R4 of the image side surface of the second lens is controlled within a reasonable range, so that the sensitivity of a system is favorably reduced, and the processing manufacturability of the lens is improved.

According to the embodiment, the at least two subsequent lenses include a fourth lens on the image side of the third lens and a fifth lens on the image side of the fourth lens, and 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) <0.6, for example 0.18< (T12+ T23)/(T34+ T45) < 0.50. Through controlling the mutual relation of the air intervals between the two adjacent lenses of the first lens, the second lens, the third lens and the fourth lens in a reasonable range, the reasonable size layout of an optical imaging system is facilitated, the aperture size is reduced, and the system resolution performance is improved.

According to the embodiment, the at least two subsequent lenses include a fourth lens on the image side of the third lens and a fifth lens on the image side of the fourth lens, and a central thickness CT3 of the third lens on the optical axis, a central thickness CT4 of the fourth lens on the optical axis, and a central thickness CT5 of the fifth lens on the optical axis satisfy: 0.2< CT5/(CT3+ CT4) < 0.7. The ratio of the center thickness of the fifth lens on the optical axis to the sum of the center thicknesses of the third lens and the fourth lens on the optical axis is controlled within a reasonable range, so that the size of a system is favorably reduced, the processing manufacturability of the lenses is ensured, and the performance of the resolving power of the system is improved.

According to the embodiment of the present application, a projection distance SAG31 on the optical axis between an intersection point of the object-side surface of the third lens and the optical axis and an effective radius vertex of the object-side surface of the third 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: 0.3< SAG32/SAG31< 0.8. The ratio of the projection distance SAG32 of the distance between two points between the intersection point of the object side surface of the third lens and the optical axis and the effective radius vertex of the object side surface of the third lens on the optical axis to the projection distance SAG31 of the distance between two points between the intersection point of the image side surface of the third lens and the optical axis and the effective radius vertex of the image side surface of the third lens on the optical axis is controlled within a reasonable range, so that the optical imaging system has better aberration correction capability, and the processing difficulty of the lens is reduced.

According to the embodiment of the present application, the maximum half field angle of the optical imaging lens is less than 25 °. By controlling the maximum half field angle of the optical imaging lens within a reasonable range, the system has larger relative brightness, the system is ensured to have good long-focus performance, and the imaging quality of the system is improved.

According to an embodiment of the present application, the optical power of the first lens may be positive optical power, and the object-side surface of the first lens may be convex. Further, the optical power of the second lens may be a negative optical power, and the image-side surface of the second lens may be a concave surface. The object-side surface of the third lens element can be convex and the image-side surface of the third lens element can be concave. The optical power of the fourth lens may be a positive optical power. Through the configuration, light can be better converged to an imaging surface, the aberration of the system is balanced, and the imaging quality of the system is improved.

An aspect of the present application provides an electronic apparatus including the above optical imaging lens. The electronic equipment who this application provided in fact installs 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 and six lenses are exemplified in the embodiments, the optical imaging lens is not limited to include five lenses or six 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. 2 to 3C. Fig. 2 is a schematic view showing a structure of an optical imaging lens according to embodiment 1 of the present application.

As shown in fig. 2, the optical imaging lens, in order from an object side to an image side along an optical axis, comprises: the lens system comprises a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a filter E6 and an imaging surface S13.

The first lens element E1 has positive power, and has a convex object-side surface S1 and a concave 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 positive 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 negative 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、A₁₀、A₁₂、A₁₄、A₁₆、A₁₈And A₂₀。

TABLE 2

Fig. 3A 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. 3B shows an astigmatism curve representing a meridional field curvature and a sagittal field curvature of the optical imaging lens of embodiment 1. Fig. 3C shows a distortion curve of the optical imaging lens of embodiment 1, which represents distortion magnitude values corresponding to different image heights. As can be seen from fig. 3A to 3C, 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. 4 to 5C. Fig. 4 shows a schematic structural diagram of an optical imaging lens according to embodiment 2 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: the lens system comprises a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7 and an imaging surface S15.

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 positive 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 concave image-side surface S8. The fifth lens element E5 has positive power, and has a concave object-side surface S9 and a convex image-side surface S10, and the sixth lens element E6 has negative power, and has a concave object-side surface S11 and a convex image-side surface S12. Filter E7 has an object side S13 and an image side S14. The light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging surface S15.

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, both the object-side surface and the image-side surface of any one of the first lens E1 through the sixth lens E6 are aspheric. Table 4 below shows the high-order coefficient A of each of the aspherical mirror surfaces S1-S12 used in example 2₄、A₆、A₈、 A₁₀、A₁₂、A₁₄、A₁₆、A₁₈And A₂₀。

Flour mark

A4

A6

A8

A10

A12

A14

A16

A18

A20

S1

3.8195E-05

8.9268E-07

-3.0919E-07

-1.7955E-08

9.2195E-09

-1.0457E-09

5.7892E-11

-1.6057E-12

1.7730E-14

S2

3.2729E-03

-5.6731E-04

-7.9190E-05

6.6662E-05

-1.8017E-05

2.8251E-06

-2.6910E-07

1.4444E-08

-3.3546E-10

S3

1.9215E-02

-1.0156E-02

2.3970E-03

-1.4606E-04

-8.7718E-05

3.0815E-05

-4.8313E-06

3.9127E-07

-1.3219E-08

S4

2.2626E-02

-5.0885E-03

-9.6609E-03

1.0578E-02

-5.5700E-03

1.7279E-03

-3.1824E-04

3.2106E-05

-1.3661E-06

S5

-1.7161E-03

6.0474E-03

-9.2524E-03

8.4523E-03

-4.5266E-03

1.4460E-03

-2.7130E-04

2.7586E-05

-1.1722E-06

S6

-4.7452E-03

2.7844E-04

3.5978E-03

-3.0869E-03

1.4456E-03

-4.2686E-04

7.9078E-05

-8.3731E-06

3.8656E-07

S7

1.8587E-03

-1.7638E-03

2.3204E-03

-1.5692E-03

6.5375E-04

-1.7472E-04

2.9187E-05

-2.7831E-06

1.1507E-07

S8

1.0482E-03

-1.7047E-03

2.4322E-03

-1.6712E-03

7.0587E-04

-1.9149E-04

3.2507E-05

-3.1609E-06

1.3392E-07

S9

-1.4867E-03

-2.9839E-03

2.9293E-03

-8.2030E-04

1.3818E-06

5.6063E-05

-1.3635E-05

1.3266E-06

-4.7121E-08

S10

-9.4592E-04

-6.0574E-03

5.2360E-03

-1.6774E-03

2.0053E-04

1.7706E-05

-6.8226E-06

5.5091E-07

-1.1978E-08

S11

-1.7544E-02

-4.5913E-03

4.1492E-03

-1.0160E-03

-1.6536E-04

1.4747E-04

-3.4579E-05

3.7861E-06

-1.6769E-07

S12

-1.2620E-02

-2.0658E-03

2.1470E-03

-8.1316E-04

1.4331E-04

-5.8268E-06

-1.9716E-06

3.1116E-07

-1.4133E-08

TABLE 4

Fig. 5A 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. 5B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging lens of embodiment 2. Fig. 5C shows a distortion curve of the optical imaging lens of embodiment 2, which represents distortion magnitude values corresponding to different image heights. As can be seen from fig. 5A to 5C, 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. 6 to 7C. Fig. 6 shows a schematic structural diagram of an optical imaging lens according to embodiment 3 of the present application.

As shown in fig. 6, the optical imaging lens, in order from an object side to an image side along an optical axis, comprises: the lens system comprises a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7 and an imaging surface S15.

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 convex 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 concave image-side surface S8. The fifth lens element E5 has positive power, and has a concave object-side surface S9 and a convex image-side surface S10, and the sixth lens element E6 has negative power, and has a concave object-side surface S11 and a convex image-side surface S12. Filter E7 has an object side S13 and an image side S14. The light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging surface S15.

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, both the object-side surface and the image-side surface of any one of the first lens E1 through the sixth lens E6 are aspheric. Table 6 below shows the high-order coefficient A of each of the aspherical mirror surfaces S1-S12 used in example 3₄、A₆、A₈、 A₁₀And A₁₂。

Flour mark	A4	A6	A8	A10	A12
						S1	-8.0905E+02	-1.0869E+01	3.4964E+02	-2.9534E+02	0.0000E+00
S2	1.5276E-01	-1.4502E-03	-5.2272E-04	-2.8999E-04	0.0000E+00
						S3	7.7036E-02	5.9912E-03	-5.1896E-03	-1.5158E-03	0.0000E+00
S4	1.7513E-01	1.1844E-02	1.2943E-03	-4.1316E-05	0.0000E+00
						S5	6.9974E-02	-2.9816E-02	-4.2156E-03	-7.8060E-04	0.0000E+00
S6	-1.0105E-01	-3.7388E-02	-5.2685E-03	-6.4143E-04	0.0000E+00
						S7	3.5026E+03	9.5986E+01	4.5647E+02	3.7152E+01	0.0000E+00
S8	5.6228E+01	-2.6219E+01	5.4994E+00	2.8380E+00	0.0000E+00
						S9	-1.4147E-01	-4.6945E-03	-3.3261E-04	3.6875E-06	0.0000E+00
S10	-1.1406E+00	1.6115E-01	1.0266E-01	1.9893E-02	0.0000E+00
						S11	-5.8440E+01	4.5286E+00	2.5205E+00	2.0321E+00	-2.1490E+00
S12	-1.7805E-01	-7.0192E-03	-9.0894E-04	-1.4224E-04	7.8886E-07

TABLE 6

Fig. 7A shows an on-axis chromatic aberration curve of the optical imaging lens of the embodiment, which represents the convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 7B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging lens of embodiment 3. Fig. 7C shows a distortion curve of the optical imaging lens of embodiment 3, which represents distortion magnitude values corresponding to different image heights. As can be seen from fig. 7A to 7C, 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. 8 to 9C. Fig. 8 is a schematic view showing a structure of an optical imaging lens according to embodiment 4 of the present application.

As shown in fig. 8, the optical imaging lens, in order from an object side to an image side along an optical axis, comprises: the lens system comprises a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a filter E6 and an imaging surface S13.

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, both the object-side surface and the image-side surface of any one of the first lens E1 through the fifth lens E5 are aspheric. Table 8 below shows the high-order coefficient A of each of the aspherical mirror surfaces S1-S10 used in example 4₄、A₆、A₈、 A₁₀、A₁₂、A₁₄、A₁₆、A₁₈And A₂₀。

Flour mark

A4

A6

A8

A10

A12

A14

A16

A18

A20

S1

3.0222E-02

5.9454E-03

1.2314E-03

1.9076E-04

5.6295E-05

3.7163E-06

1.8131E-06

-2.4412E-06

6.5466E-07

S2

5.6453E-02

-2.1239E-03

1.9432E-03

-1.1668E-04

9.7219E-05

-1.3509E-05

2.2477E-06

-1.8587E-06

-1.7784E-07

S3

4.3545E-02

-4.8402E-02

1.8639E-02

-1.0213E-02

-9.9886E-06

-1.8155E-03

-8.5460E-05

-1.8072E-04

-6.6102E-07

S4

-2.3208E-03

-5.3623E-02

9.0171E-03

-3.3628E-03

7.8130E-04

-3.0603E-04

-5.9536E-05

1.4926E-05

-3.4584E-05

S5

1.0693E-02

2.0045E-03

2.8363E-03

-5.2665E-05

3.0629E-04

-1.0411E-04

-1.0082E-04

1.0638E-05

-4.0933E-05

S6

1.0629E-02

1.8540E-02

-1.9517E-03

-1.8503E-03

-2.3308E-03

-1.5707E-03

-8.7967E-04

-2.9678E-04

-5.3251E-05

S7

-1.3282E-01

-6.5555E-03

-4.8477E-03

9.3860E-04

-1.1531E-04

2.0115E-04

1.0128E-05

2.5978E-06

-1.2035E-05

S8

-5.3621E-02

-3.1816E-02

-5.8246E-03

1.3219E-03

-9.2080E-04

-6.9003E-04

-7.7481E-04

-3.3781E-04

-1.0015E-04

S9

-4.0342E-01

2.4584E-02

-3.6835E-03

5.8263E-04

-1.1296E-04

2.3396E-05

-6.2558E-06

1.6672E-06

-1.2794E-07

S10

-3.3950E-01

2.5117E-02

-3.6569E-03

6.1428E-04

-1.2200E-04

2.6551E-05

-6.4354E-06

1.3663E-06

-1.3428E-07

TABLE 8

Fig. 9A 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. 9B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging lens of embodiment 4. Fig. 9C shows a distortion curve of the optical imaging lens of embodiment 4, which represents distortion magnitude values corresponding to different image heights. As can be seen from fig. 9A to 9C, 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. 10 to 11C. Fig. 10 shows a schematic structural diagram of an optical imaging lens according to embodiment 5 of the present application.

As shown in fig. 10, the optical imaging lens, in order from an object side to an image side along an optical axis, comprises: the lens system comprises a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a filter E6 and an imaging surface S13.

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 negative power, and has a concave object-side surface S9 and a convex 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 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, both the object-side surface and the image-side surface of any one of the first lens E1 through the fifth lens E5 are aspheric. Table 10 below shows the high-order coefficient A of each of the aspherical mirror surfaces S1-S10 used in example 5₄、A₆、A₈、A₁₀、A₁₂、A₁₄、A₁₆、A₁₈And A₂₀。

Flour mark

A4

A6

A8

A10

A12

A14

A16

A18

A20

S1

-2.0888E-02

-1.0023E-03

-2.2341E-04

9.4146E-06

6.3870E-05

3.8702E-05

1.7802E-05

1.8172E-06

7.8349E-07

S2

5.0300E-03

2.6984E-03

-3.2546E-04

5.6920E-04

-1.9491E-04

-1.2414E-04

-2.1714E-04

1.4920E-05

5.9840E-05

S3

3.4522E-02

-2.8404E-03

-2.3263E-04

4.6872E-05

-2.1674E-04

7.6204E-05

-7.1254E-05

-2.9637E-05

9.7356E-06

S4

5.2197E-02

-4.9921E-03

-9.8472E-04

-5.8263E-04

-5.3584E-04

6.5583E-05

3.7810E-05

2.0992E-05

-4.2705E-07

S5

-4.8572E-02

5.8706E-03

-8.9067E-04

5.3201E-05

-4.6412E-04

1.6029E-04

8.9633E-05

3.5582E-05

2.8682E-06

S6

-3.9286E-02

9.2962E-04

-4.9212E-05

3.0904E-04

-1.0230E-04

2.1376E-05

1.5700E-05

7.9932E-06

5.1194E-07

S7

-6.6526E-02

-9.1109E-03

5.1231E-04

5.7761E-04

1.7732E-04

8.1956E-05

2.6925E-05

5.0480E-06

9.9514E-07

S8

-6.1502E-02

-1.0137E-02

1.2319E-03

6.2194E-04

1.6138E-04

8.2925E-05

2.6264E-05

5.5674E-06

1.7975E-06

S9

-2.8164E-01

1.1686E-02

-3.8012E-03

1.8774E-03

-2.7125E-04

1.9021E-04

-6.3927E-05

-3.3809E-06

-2.1023E-05

S10

-1.4392E-01

2.1207E-03

7.4000E-04

2.1686E-04

-3.5293E-05

-3.5788E-05

-5.5638E-05

-3.4440E-05

-1.7884E-05

Watch 10

Fig. 11A 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. 11B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging lens of embodiment 5. Fig. 11C shows a distortion curve of the optical imaging lens of embodiment 5, which represents distortion magnitude values corresponding to different image heights. As can be seen from fig. 11A to 11C, the optical imaging lens according to embodiment 5 can achieve good imaging quality.

The following table 11 shows the effective focal lengths f1-f6 of the respective lenses of the optical imaging lenses described in the above embodiments 1-5, 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 aperture value f/EPD of the optical imaging lenses, and the maximum half field angle Semi-FOV of the optical imaging lenses.

Basic data/embodiment	1	2	3	4	5
						f1(mm)	11.68	10.16	8.35	12.42	6.02
f2(mm)	-6.63	-5.49	-8.49	-7.03	-10.74
						f3(mm)	15.62	18.41	-172.07	15.50	-155.17
f4(mm)	19.35	22.53	200.04	20.21	34.43
						f5(mm)	-32.41	28.74	22.00	-33.64	-11.1046303
f6(mm)	/	-20.82	-19.95	/	/
						f(mm)	23.99	24.00	24.00	24.00	14.45
TTL(mm)	22.00	22.00	21.00	22.00	12.68
						ImgH(mm)	4.25	4.25	4.25	4.25	2.70
f/EPD	3.12	3.12	3.12	3.12	3.47
						SmeiFOV(°)	10.0	10.0	10.0	10.0	10.4

TABLE 11

Table 12 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
						TTL/f	0.92	0.92	0.88	0.92	0.88
DT11Y/DT11X	0.65	0.83	0.67	0.71	0.80
						DT12Y/DT12X	0.65	0.83	0.67	0.83	0.81
DT21Y/DT21X	1.00	1.00	0.93	1.00	0.86
						DT22Y/DT22X	1.00	1.00	0.93	1.00	0.98
R1/f1	0.50	0.63	0.71	0.47	0.60
						(R5+R6)/f	0.56	0.47	0.69	0.52	0.73
f/f23	0.64	0.73	1.07	0.61	1.13
						(R3+R4)/(R3-R4)	0.70	0.50	1.21	0.79	0.29
(T12+T23)/(T34+T45)	0.50	0.24	0.22	0.36	0.18
						CT5/(CT3+CT4)	0.24	0.38	0.62	0.24	0.27
SAG32/SAG31	0.37	0.53	0.78	0.45	0.78

TABLE 12

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 an optical power;

a second lens having an optical power;

a third lens having optical power; and

at least two subsequent lenses having optical power, wherein,

the distance TTL between the object side surface of the first lens and the imaging surface of the optical imaging lens on the optical axis and the total effective focal length f of the optical imaging lens meet the following requirements: TTL/f <1, and

the optical imaging lens comprises a lens, the optical part of at least one lens in the lens is trimmed on the Y axis, the maximum effective radius DY of the trimmed lens on the Y axis and the maximum effective radius DX on the X axis satisfy 0.5< DY/DX <1.0, and the X axis is perpendicular to the Y axis.

2. The optical imaging lens of claim 1, characterized in that the optical portion of the first lens is edged on the Y-axis, and a maximum effective radius DT11Y of the object-side surface of the first lens on the Y-axis and a maximum effective radius DT11X of the object-side surface of the first lens on the X-axis satisfy:

0.5<DT11Y/DT11X<1.0。

3. the optical imaging lens of claim 2, wherein the maximum effective radius DT12Y of the image side surface of the first lens on the Y axis and the maximum effective radius DT12X of the image side surface of the first lens on the X axis satisfy:

0.5<DT12Y/DT12X<1.0。

4. the optical imaging lens of claim 1, wherein a maximum effective radius DT21Y of the object-side surface of the second lens in the Y axis and a maximum effective radius DT21X of the object-side surface of the second lens in the X axis satisfy:

0.5<DT21Y/DT21X≤1.0。

5. the optical imaging lens of claim 4, wherein the maximum effective radius DT22Y of the image side surface of the second lens on the Y axis and the maximum effective radius DT22X of the image side surface of the second lens on the X axis satisfy:

0.5<DT22Y/DT22X≤1.0。

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 effective focal length f1 of the first lens satisfy:

0.2<R1/f1<1.0。

7. the optical imaging lens of claim 6, wherein the radius of curvature of the object-side surface of the third lens, R5, the radius of curvature of the image-side surface of the third lens, R6, and the total effective focal length f of the optical imaging lens satisfy:

0.3<(R5+R6)/f<0.8。

8. the optical imaging lens of claim 1, wherein the total effective focal length f of the optical imaging lens and the combined focal length f23 of the second lens and the third lens satisfy:

0.5<f/f23<1.5。

9. the optical imaging lens of claim 1, wherein the radius of curvature R3 of the object-side surface of the second lens and the radius of curvature R4 of the image-side surface of the second lens satisfy:

0.2<(R3+R4)/(R3-R4)<1.3。

10. the optical imaging lens of claim 1, wherein the at least two subsequent lenses include a fourth lens on an image side of the third lens and a fifth lens on an image side of the fourth lens, and an air interval T12 on the optical axis of the first and second lenses, an air interval T23 on the optical axis of the second and third lenses, an air interval T34 on the optical axis of the third and fourth lenses, and an air interval T45 on the optical axis of the fourth and fifth lenses satisfy:

0.1<(T12+T23)/(T34+T45)<0.6。

11. the optical imaging lens of claim 1, wherein the at least two subsequent lenses include a fourth lens located on an image side of the third lens and a fifth lens located on an image side of the fourth lens, and a central thickness CT3 of the third lens on the optical axis, a central thickness CT4 of the fourth lens on the optical axis, and a central thickness CT5 of the fifth lens on the optical axis satisfy: 0.2< CT5/(CT3+ CT4) < 0.7.

12. The optical imaging lens of claim 1, wherein a projection distance SAG32 on the optical axis between an intersection point of an object-side surface of the third lens and the optical axis and an effective radius vertex of the object-side surface of the third lens and an intersection point of an 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 satisfies: 0.3< SAG32/SAG31< 0.8.

13. The optical imaging lens of claim 1, wherein the maximum half field angle of the optical imaging lens is less than 25 °.

14. The optical imaging lens of claim 1, wherein the optical power of the first lens is positive optical power, and the object side surface of the first lens is convex.

15. The optical imaging lens of claim 1, wherein the optical power of the second lens is a negative optical power, and the image side surface of the second lens is a concave surface.

16. The optical imaging lens of claim 1, wherein the object side surface of the third lens is convex and the image side surface of the third lens is concave.

17. The optical imaging lens of claim 10, wherein the optical power of the fourth lens is a positive optical power.

18. An electronic device, characterized in that the electronic device comprises an optical imaging lens according to any one of claims 1-17.