CN212341568U

CN212341568U - Optical imaging lens

Info

Publication number: CN212341568U
Application number: CN202020903398.0U
Authority: CN
Inventors: 吴旭炯; 戴付建; 赵烈烽
Original assignee: Zhejiang Sunny Optics Co Ltd
Current assignee: Zhejiang Sunny Optics Co Ltd
Priority date: 2020-05-26
Filing date: 2020-05-26
Publication date: 2021-01-12
Anticipated expiration: 2030-05-26

Abstract

The application discloses an optical imaging lens, it includes from the object side to the image side along the optical axis in proper order: a first lens; a second lens having a negative optical power; a third lens; a fourth lens having a negative optical power; a fifth lens; and a sixth lens; wherein ImgH is more than or equal to 5 mm; and TTL/ImgH is less than or equal to 1.28, wherein ImgH is half of the diagonal length of an effective pixel area on the imaging surface of the optical imaging lens, and 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.

Description

Optical imaging lens

Technical Field

The present application relates to the field of optical elements, and more particularly, to an optical imaging lens.

Background

Smart devices represented by smart phones generally have a photographing function. In order to attract customers, mobile phone manufacturers have achieved a whitish match in the aspect of the photographing performance of mobile phones. Furthermore, requirements of mobile phone manufacturers on optical imaging lenses are diversified, the size of the optical imaging lenses is reduced as much as possible, a high imaging effect is guaranteed, and then great challenges are brought to lens manufacturers.

A camera module is generally installed in a portable device such as a mobile phone, so that the mobile phone has a camera function. The camera module is generally provided with a Charge-coupled Device (CCD) type image sensor or a Complementary Metal Oxide Semiconductor (CMOS) type image sensor, and an optical imaging lens. The optical imaging lens can collect light rays on the object side, the imaging light rays travel along the light path of the optical imaging lens and irradiate the image sensor, and then the image sensor converts optical signals into electric signals to form image data. With the rapid development of the semiconductor industry, the performance of the image sensor is rapidly improved, for example, the pixel is higher and higher. This further poses challenges to the design of optical imaging lenses.

In order to meet the miniaturization requirement and meet the imaging requirement, an optical imaging lens which can meet the requirements of miniaturization, ultrathin, large image plane and large aperture is needed.

SUMMERY OF THE UTILITY MODEL

The present application provides an optical imaging lens applicable to portable electronic products that may solve, at least, or in part, at least one of the above-mentioned disadvantages of the related art.

The present application provides an optical imaging lens, sequentially from an object side to an image side along an optical axis, comprising: a first lens; a second lens having a negative optical power; a third lens; a fourth lens having a negative optical power; a fifth lens; and a sixth lens; wherein ImgH is more than or equal to 5 mm; and TTL/ImgH is less than or equal to 1.28, wherein ImgH is half of the diagonal length of the effective pixel area on the imaging surface of the optical imaging lens, and 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.

In one embodiment, the first lens has at least one aspherical mirror surface from the object-side surface to the image-side surface of the sixth lens.

In one embodiment, the effective focal length f4 of the fourth lens and the total effective focal length f of the optical imaging lens can satisfy-3.5 < f4/f < -1.0.

In one embodiment, the effective focal length f1 of the first lens and a half of the maximum field angle Semi-FOV of the optical imaging lens may satisfy 4mm < f1 xtan (Semi-FOV) < 6 mm.

In one embodiment, a radius of curvature R2 of the image-side surface of the first lens and a combined focal length f12 of the first lens and the second lens may satisfy 0.5 < R2/f12 < 1.5.

In one embodiment, a central thickness CT3 of the third lens on the optical axis and a separation distance T34 of the third lens and the fourth lens on the optical axis may satisfy 1.0 < CT3/T34 < 2.5.

In one embodiment, the effective focal length f5 of the fifth lens and the effective focal length f6 of the sixth lens may satisfy 0.5 < | f5/f6| < 2.0.

In one embodiment, the effective focal length f1 of the first lens, the effective focal length f4 of the fourth lens, and the effective focal length f5 of the fifth lens may satisfy-2 < (f4+ f5)/f1 < 0.

In one embodiment, an on-axis distance SAG31 between an intersection of an object-side surface of the third lens and the optical axis to a vertex of an effective radius of the object-side surface of the third lens and an on-axis distance SAG32 between an intersection of an image-side surface of the third lens and the optical axis to a vertex of an effective radius of the image-side surface of the third lens may satisfy 2 ≦ SAG32/SAG31 < 4.

In one embodiment, an on-axis distance SAG41 between an intersection of an object-side surface of the fourth lens and the optical axis to an effective radius vertex of the object-side surface of the fourth lens, an on-axis distance SAG42 between an intersection 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, and a center thickness CT4 of the fourth lens on the optical axis may satisfy 0.5 < | SAG41+ SAG42|/CT4 < 2.5.

In one embodiment, the edge thickness ET2 of the second lens, the edge thickness ET3 of the third lens, and the separation distance T23 between the second lens and the third lens on the optical axis may satisfy 1.0 < (ET2+ ET3)/T23 < 2.5.

In one embodiment, the combined focal length f345 of the third lens, the fourth lens and the fifth lens and the total effective focal length f of the optical imaging lens can satisfy 0.5 < f345/f < 1.5.

In one embodiment, the object-side surface of the third lens element can be convex, and the image-side surface of the third lens element can be convex.

In one embodiment, the image side surface of the fifth lens element can be convex.

Another aspect of the present application discloses an optical imaging lens, sequentially from an object side to an image side along an optical axis, comprising: a first lens; a second lens having a negative optical power; a third lens; a fourth lens having a negative optical power; a fifth lens; and a sixth lens; wherein, the half of the diagonal length ImgH of the effective pixel area on the imaging surface of the optical imaging lens and 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 can meet the condition that TTL/ImgH is less than or equal to 1.30; the effective focal length f1 of the first lens and a half of the maximum field angle Semi-FOV of the optical imaging lens may satisfy 4mm < f1 × tan (Semi-FOV) < 6 mm.

In one embodiment, the half of the diagonal length of the effective pixel area on the imaging surface of the optical imaging lens, ImgH, can satisfy ImgH ≧ 5 mm.

This application has adopted six lens, through the focal power of rational distribution each lens, face type, the center thickness of each lens and the epaxial interval between each lens etc for above-mentioned optical imaging lens has at least one beneficial effect such as miniaturization, ultra-thin, big image plane and large aperture.

Drawings

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

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

fig. 3 is a schematic structural view showing an optical imaging lens according to embodiment 2 of the present application; fig. 4A to 4D show an on-axis chromatic aberration curve, an astigmatic curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of the optical imaging lens of embodiment 2;

fig. 5 is a schematic structural view showing an optical imaging lens according to embodiment 3 of the present application; fig. 6A to 6D show an on-axis chromatic aberration curve, an astigmatic curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of the optical imaging lens of embodiment 3;

fig. 7 is a schematic structural view showing an optical imaging lens according to embodiment 4 of the present application; fig. 8A to 8D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of the optical imaging lens of embodiment 4;

fig. 9 is a schematic structural view showing an optical imaging lens according to embodiment 5 of the present application; fig. 10A to 10D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of the optical imaging lens of embodiment 5;

fig. 11 is a schematic structural view showing an optical imaging lens according to embodiment 6 of the present application; fig. 12A to 12D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of the optical imaging lens of embodiment 6;

fig. 13 is a schematic structural view showing an optical imaging lens according to embodiment 7 of the present application; fig. 14A to 14D show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of the optical imaging lens of embodiment 7.

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.

The optical imaging lens according to an exemplary embodiment of the present application may include, for example, six lenses having optical powers, i.e., a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. The six lenses are arranged in order from the object side to the image side along the optical axis. Any adjacent two lenses among the first to sixth lenses may have an air space therebetween.

In an exemplary embodiment, the first lens has a positive or negative power; the second lens may have a negative optical power; the third lens has positive focal power or negative focal power; the fourth lens may have a negative optical power; the fifth lens has positive focal power or negative focal power; and the sixth lens has positive power or negative power. The distribution of the focal power of each component of the lens is reasonably controlled, so that the imaging quality of the optical imaging lens can be improved.

In an exemplary embodiment, the object side surface of the third lens may be convex. Illustratively, the image-side surface of the third lens is convex. By controlling the two mirror surfaces of the third lens to be convex surfaces respectively, imaging light rays can be reasonably bent at the two mirror surfaces. And both the mirror surfaces of the third lens are convex surfaces, so that smaller third-order aberration and smaller high-order aberration can be contributed, and the imaging quality of the optical imaging lens is further improved.

In an exemplary embodiment, an image side surface of the fifth lens may be convex. The image side surface of the fifth lens is a convex surface, so that the shape of the fifth lens is reasonable, light can be converged on the image surface, and the imaging performance under the macro is improved. At the same time, the lens has better processing property, such as easy injection molding.

In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression ImgH ≧ 5mm, where ImgH is half the diagonal length of the effective pixel area on the imaging plane of the optical imaging lens. By controlling ImgH to be larger than or equal to 5mm, the optical imaging lens has the characteristic of large image surface. More specifically, the ImgH can satisfy ImgH ≧ 5.15 mm.

In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression TTL/ImgH ≦ 1.30, where ImgH is half the diagonal length of the effective pixel area on the imaging surface of the optical imaging lens, and TTL is the distance on the optical axis from the object-side surface of the first lens to the imaging surface of the optical imaging lens. By restricting the ratio of the total optical length to the image height of the optical imaging lens in the range, the optical imaging lens can realize the characteristic of ultra-thin. More specifically, ImgH and TTL can satisfy TTL/ImgH ≦ 1.28.

In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression-3.5 < f4/f < -1.0, where f4 is an effective focal length of the fourth lens, and f is a total effective focal length of the optical imaging lens. By controlling the ratio of the effective focal length of the fourth lens to the total effective focal length in this range, it is possible to contribute to rational control of the effective focal length of the fourth lens. The fourth lens can generate positive spherical aberration, and the positive spherical aberration is balanced with negative spherical aberration generated by other lenses, so that the imaging quality of the optical imaging lens on the axial view field is good. More specifically, f4 and f satisfy-3.25 < f4/f < -1.30.

In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 4mm < f1 × tan (Semi-FOV) < 6mm, where f1 is an effective focal length of the first lens and the Semi-FOV is half of a maximum field angle of the optical imaging lens. By controlling the length of 4mm < f1 Xtan (Semi-FOV) < 6mm, the optical imaging lens can realize the imaging effect of a large image plane. More specifically, f1 and the Semi-FOV may satisfy 4.00mm < f1 Xtan (Semi-FOV) < 5.60 mm.

In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 0.5 < R2/f12 < 1.5, where R2 is a radius of curvature of an image side surface of the first lens and f12 is a combined focal length of the first lens and the second lens. By controlling the ratio of the curvature radius of the image side surface of the first lens to the combined focal length of the first lens and the second lens in the range, the deflection angle of the marginal field of view at the first lens can be controlled, and the sensitivity of the optical imaging lens can be effectively reduced. More specifically, R2 and f12 may satisfy 0.8 < R2/f12 < 1.40.

In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 1.0 < CT3/T34 < 2.5, where CT3 is a center thickness of the third lens on the optical axis and T34 is a separation distance of the third lens and the fourth lens on the optical axis. By reasonably adjusting the ratio of the central thickness of the third lens to the air gap between the third lens and the fourth lens, the risk of generating ghost images at the third lens and the fourth lens can be effectively reduced, and the size of the optical imaging lens can be favorably compressed. More specifically, CT3 and T34 satisfy 1.15 < CT3/T34 < 2.25.

In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 0.5 < | f5/f6| < 2.0, where f5 is an effective focal length of the fifth lens and f6 is an effective focal length of the sixth lens. Through reasonably combining focal powers of the fifth lens and the sixth lens and adjusting the ratio of the two focal powers within a certain range, the off-axis aberration balance of the optical imaging lens is facilitated. More specifically, f5 and f6 satisfy 0.9 < | f5/f6| < 1.9.

In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression-2 < (f4+ f5)/f1 < 0, where f1 is an effective focal length of the first lens, f4 is an effective focal length of the fourth lens, and f5 is an effective focal length of the fifth lens. Satisfy-2 < (f4+ f5)/f1 < 0, be favorable to making the distortion generated by the fourth lens and the fifth lens balanced, and make the third order astigmatism generated by the fourth lens and the fifth lens balanced, and then make the final distortion and astigmatism of the optical imaging lens controlled in a reasonable range, in order to improve the imaging quality. More specifically, f1, f4, and f5 may satisfy-2.0 < (f4+ f5)/f1 < -0.60.

In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 2 ≦ SAG32/SAG31 < 4, where SAG31 is an on-axis distance between an intersection 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 SAG32 is an on-axis distance between an intersection 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. The ratio of the rise of the mirror surfaces at the two sides of the third lens is reasonably controlled, so that the processing, forming and assembling of the third lens are favorably ensured, and good imaging quality is obtained. An unreasonable ratio may cause problems such as difficulty in adjusting the molding surface shape, significant deformation after assembly, and the like, and further, the imaging quality cannot be ensured. More specifically, SAG31 and SAG32 may satisfy 2.0 ≦ SAG32/SAG31 < 3.7.

In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 0.5 < | SAG41+ SAG42|/CT4 < 2.5, where SAG41 is an on-axis distance between an intersection of an object-side surface of the fourth lens and the optical axis to an effective radius vertex of the object-side surface of the fourth lens, SAG42 is an on-axis distance between an intersection 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, and CT4 is a center thickness of the fourth lens on the optical axis. Satisfying 0.5 < | SAG41+ SAG42|/CT4 < 2.5, the incident angle of the principal ray on the object side surface of the fourth lens can be effectively reduced. And further the matching degree of the optical imaging lens and the chip to be matched can be improved. More specifically, SAG41, SAG42 and CT4 may satisfy 0.8 < | SAG41+ SAG42|/CT4 < 2.4.

In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 1.0 < (ET2+ ET3)/T23 < 2.5, where ET2 is an edge thickness of the second lens, ET3 is an edge thickness of the third lens, and T23 is a separation distance of the second lens and the third lens on an optical axis. By controlling the ratio of the sum of the edge thicknesses of the second lens and the third lens to the air gap therebetween within this range, it is possible to contribute to better processability and assemblability of the lenses. More specifically, ET2, ET3 and T23 may satisfy 1.30 < (ET2+ ET3)/T23 < 2.20.

In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 0.5 < f345/f < 1.5, where f345 is a combined focal length of the third lens, the fourth lens, and the fifth lens, and f is a total effective focal length of the optical imaging lens. By satisfying the conditional expression that f345/f is greater than 0.5 and less than 1.5, the combined focal length of the third lens, the fourth lens and the fifth lens after combination is controlled within a certain range, and further the contribution of the aberration of the three lenses can be controlled, so that the aberration of the optical imaging lens is in a reasonable horizontal state. More specifically, f345 and f may satisfy 0.70 < f345/f < 1.25.

In an exemplary embodiment, the optical imaging lens may further include at least one diaphragm. The stop may be disposed at an appropriate position as needed, for example, between the object side and the first lens. Optionally, the optical imaging lens may further include a filter for correcting color deviation and/or a protective glass for protecting a photosensitive element on the imaging surface.

The optical imaging lens according to the above-described embodiment of the present application may employ a plurality of lenses, for example, six lenses as described above. By reasonably distributing the focal power, the surface type, the central thickness of each lens, the on-axis distance between each lens and the like, the volume of the optical imaging lens can be effectively reduced, the structural length of the optical imaging lens can be reduced, the sensitivity of the imaging lens can be reduced, and the machinability of the imaging lens can be improved, so that the optical imaging lens is more beneficial to production and processing and can be suitable for portable electronic products. Meanwhile, the optical imaging lens further has excellent optical properties such as a large image surface, a large aperture, weak ghost image strength and good imaging quality.

In the embodiment of the present application, at least one of the mirror surfaces of each lens is an aspherical mirror surface, that is, at least one of the object-side surface of the first lens to the image-side surface of the sixth lens is an aspherical mirror surface. The aspheric lens is characterized in that: the curvature varies continuously from the center of the lens to the periphery of the lens. Unlike a spherical lens having a constant curvature from the center of the lens to the periphery of the lens, an aspherical lens has better curvature radius characteristics, and has advantages of improving distortion aberration and improving astigmatic aberration. After the aspheric lens is adopted, the aberration generated during imaging can be eliminated as much as possible, thereby improving the imaging quality. Optionally, at least one of an object-side surface and an image-side surface of each of the first lens, the second lens, the third lens, the fourth lens, the fifth lens, and the sixth lens is an aspheric mirror surface. Optionally, each of the first, second, third, fourth, fifth, and sixth lenses has an object-side surface and an image-side surface that are aspheric mirror surfaces.

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 six lenses are exemplified in the embodiment, the optical imaging lens is not limited to including 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. 1 to 2D. Fig. 1 shows a schematic structural diagram of an optical imaging lens according to embodiment 1 of the present application.

As shown in fig. 1, the optical imaging lens, in order from an object side to an image side along an optical axis, comprises: a stop STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, and a filter E7.

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 convex 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 convex image-side surface S6. The fourth lens element E4 has negative power, and has a concave object-side surface S7 and a concave image-side surface S8. The fifth lens element E5 has positive power, and has a convex object-side surface S9 and a convex image-side surface S10. The sixth lens element E6 has positive power, and has a convex object-side surface S11 and a concave image-side surface S12. Filter E7 has an object side S13 and an image side S14. The optical imaging lens has an imaging surface S15, and light from the object passes through the respective surfaces S1 to S14 in order and is finally imaged on the imaging surface S15.

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/distance, and the focal length are all millimeters (mm).

TABLE 1

In embodiment 1, the value of the total effective focal length f of the optical imaging lens is 5.51mm, the value of the f-number Fno of the optical imaging lens is 1.97, the value of the on-axis distance TTL from the object side surface S1 to the imaging plane S15 of the first lens E1 is 6.52mm, the value of the half ImgH of the diagonal length of the effective pixel region on the imaging plane S15 is 5.16mm, and the value of the half semifov of the maximum angle of view-FOV is 42.62 °.

In embodiment 1, the object-side surface and the image-side surface of any one of the first lens E1 through the sixth lens E6 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 term coefficients A that can be used for the aspherical mirror surfaces S1 to S12 in example 1₄、A₆、A₈、A₁₀、A₁₂、A₁₄、A₁₆、A₁₈And A₂₀。

Flour mark

A4

A6

A8

A10

A12

A14

A16

A18

A20

S1

1.1716E-04

-1.1959E-02

1.6138E-01

-8.9128E-01

2.8980E+00

-6.1966E+00

9.1799E+00

-9.6691E+00

7.3036E+00

S2

-4.4549E-02

4.0310E-02

-1.6844E-01

6.7217E-01

-1.6124E+00

2.1526E+00

-8.4571E-01

-2.2477E+00

4.6964E+00

S3

-5.1335E-02

7.5041E-02

-4.6163E-01

3.3624E+00

-1.5052E+01

4.4185E+01

-8.9063E+01

1.2627E+02

-1.2704E+02

S4

-1.8322E-02

1.2719E-02

5.6536E-01

-5.3966E+00

2.8894E+01

-9.9105E+01

2.3046E+02

-3.7423E+02

4.2933E+02

S5

-5.2993E-02

4.5473E-02

-2.2123E-01

4.9777E-01

9.6763E-02

-4.8134E+00

1.7119E+01

-3.3949E+01

4.3845E+01

S6

-4.8871E-02

-1.4918E-01

1.2527E+00

-5.7277E+00

1.7035E+01

-3.5141E+01

5.1693E+01

-5.4937E+01

4.2258E+01

S7

-1.2486E-01

-5.7079E-02

5.6405E-01

-1.4873E+00

2.2654E+00

-1.9719E+00

5.4839E-01

8.4839E-01

-1.2393E+00

S8

-1.5347E-01

-6.1380E-03

2.5541E-01

-5.6904E-01

7.9004E-01

-7.6913E-01

5.4118E-01

-2.7793E-01

1.0420E-01

S9

-4.0244E-02

-5.8629E-02

1.0569E-01

-1.1538E-01

9.3919E-02

-5.6703E-02

2.4906E-02

-7.9374E-03

1.8322E-03

S10

1.1691E-03

-2.9041E-02

4.1902E-02

-4.1892E-02

3.3609E-02

-1.8769E-02

7.0482E-03

-1.8095E-03

3.2299E-04

S11

-2.2124E-01

7.7702E-02

-6.3450E-04

-8.8371E-03

3.6896E-03

-8.4509E-04

1.2759E-04

-1.3394E-05

9.9033E-07

S12

-2.3497E-01

1.3692E-01

-6.4309E-02

2.3608E-02

-6.6003E-03

1.3839E-03

-2.1628E-04

2.5090E-05

-2.1436E-06

TABLE 2

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

Example 2

An optical imaging lens according to embodiment 2 of the present application is described below with reference to fig. 3 to 4D. In this embodiment and the following embodiments, descriptions of parts similar to those of embodiment 1 will be omitted for the sake of brevity. Fig. 3 shows a schematic structural diagram of an optical imaging lens according to embodiment 2 of the present application.

As shown in fig. 3, the optical imaging lens, in order from an object side to an image side along an optical axis, comprises: a stop STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, and a filter E7.

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 convex image-side surface S6. The fourth lens element E4 has negative power, and has a concave object-side surface S7 and a concave image-side surface S8. The fifth lens element E5 has positive power, and has a convex object-side surface S9 and a convex image-side surface S10. The sixth lens element E6 has positive power, and has a convex object-side surface S11 and a concave image-side surface S12. Filter E7 has an object side S13 and an image side S14. The optical imaging lens has an imaging surface S15, and light from the object passes through the respective surfaces S1 to S14 in order and is finally imaged on the imaging surface S15.

In embodiment 2, the value of the total effective focal length f of the optical imaging lens is 5.40mm, the value of the f-number Fno of the optical imaging lens is 1.97, the value of the on-axis distance TTL from the object side surface S1 to the imaging plane S15 of the first lens E1 is 6.45mm, the value of the half ImgH of the diagonal length of the effective pixel region on the imaging plane S15 is 5.16mm, and the value of the half Semi-FOV of the maximum angle of view is 40.8 °.

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/distance, and the focal length are all millimeters (mm). Table 4 shows high-order term coefficients that can be used for each aspherical mirror surface in example 2, wherein each aspherical mirror surface type can be defined by formula (1) given in example 1 above.

TABLE 3

TABLE 4

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

Example 3

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

As shown in fig. 5, the optical imaging lens, in order from an object side to an image side along an optical axis, comprises: a stop STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, and a filter E7.

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 convex 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 convex image-side surface S6. The fourth lens element E4 has negative power, and has a concave object-side surface S7 and a concave image-side surface S8. The fifth lens element E5 has positive power, and has a convex object-side surface S9 and a convex image-side surface S10. The sixth lens element E6 has positive power, and has a concave object-side surface S11 and a concave image-side surface S12. Filter E7 has an object side S13 and an image side S14. The optical imaging lens has an imaging surface S15, and light from the object passes through the respective surfaces S1 to S14 in order and is finally imaged on the imaging surface S15.

In embodiment 3, the value of the total effective focal length f of the optical imaging lens is 5.40mm, the value of the f-number Fno of the optical imaging lens is 1.97, the value of the on-axis distance TTL from the object side surface S1 to the imaging plane S15 of the first lens E1 is 6.38mm, the value of the half ImgH of the diagonal length of the effective pixel region on the imaging plane S15 is 5.16mm, and the value of the half semifov of the maximum angle of view-FOV is 41.01 °.

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/distance, and the focal length are all millimeters (mm). Table 6 shows high-order term coefficients that can be used for each aspherical mirror surface in example 3, wherein each aspherical mirror surface type can be defined by formula (1) given in example 1 above.

TABLE 5

Flour mark

A4

A6

A8

A10

A12

A14

A16

A18

A20

S1

5.2414E-03

-5.5157E-02

4.8176E-01

-2.4542E+00

8.0839E+00

-1.8144E+01

2.8630E+01

-3.2294E+01

2.6152E+01

S2

-4.6468E-02

8.7449E-02

-6.6811E-01

3.7152E+00

-1.3494E+01

3.3600E+01

-5.9101E+01

7.4513E+01

-6.7514E+01

S3

-4.3478E-02

8.2316E-04

2.3361E-01

-1.0745E+00

3.5393E+00

-9.1423E+00

1.8708E+01

-2.9625E+01

3.5047E+01

S4

-1.5618E-02

9.4961E-02

-5.6511E-01

2.5189E+00

-6.2720E+00

6.0007E+00

1.2388E+01

-5.5252E+01

9.9760E+01

S5

-4.3443E-02

-7.2876E-03

-1.3985E-01

1.5891E+00

-9.9533E+00

3.8348E+01

-9.7852E+01

1.7153E+02

-2.0980E+02

S6

-5.9159E-02

3.9736E-02

4.9465E-02

-1.1174E+00

5.0521E+00

-1.3346E+01

2.3587E+01

-2.9186E+01

2.5664E+01

S7

-1.3698E-01

2.4819E-01

-6.9601E-01

1.8154E+00

-3.7577E+00

5.7793E+00

-6.4937E+00

5.3131E+00

-3.1489E+00

S8

-2.1999E-01

2.9695E-01

-5.4606E-01

9.0255E-01

-1.1507E+00

1.0779E+00

-7.3329E-01

3.6101E-01

-1.2764E-01

S9

-1.2271E-01

9.8124E-02

-1.2814E-01

1.4552E-01

-1.1790E-01

6.1743E-02

-1.8917E-02

2.0475E-03

7.7308E-04

S10

0.0000E+00

S11

-1.5101E-01

4.2991E-02

2.6641E-02

-3.1949E-02

1.5330E-02

-4.4216E-03

8.4403E-04

-1.1104E-04

1.0237E-05

S12

-2.0237E-01

1.1694E-01

-5.1099E-02

1.6560E-02

-4.0111E-03

7.3087E-04

-1.0035E-04

1.0346E-05

-7.9294E-07

TABLE 6

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

Example 4

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

As shown in fig. 7, the optical imaging lens, in order from an object side to an image side along an optical axis, comprises: a stop STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, and a filter E7.

In embodiment 4, the value of the total effective focal length f of the optical imaging lens is 5.40mm, the value of the f-number Fno of the optical imaging lens is 1.97, the value of the on-axis distance TTL from the object side surface S1 to the imaging plane S15 of the first lens E1 is 6.50mm, the value of the half ImgH of the diagonal length of the effective pixel region on the imaging plane S15 is 5.16mm, and the value of the half semifov of the maximum angle of view-FOV is 42.62 °.

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/distance, and the focal length are all millimeters (mm). Table 8 shows high-order term coefficients that can be used for each aspherical mirror surface in example 4, wherein each aspherical mirror surface type can be defined by formula (1) given in example 1 above.

TABLE 7

Flour mark

A4

A6

A8

A10

A12

A14

A16

A18

A20

S1

3.4127E-03

-2.1854E-02

1.8233E-01

-9.1759E-01

3.0396E+00

-6.9220E+00

1.1125E+01

-1.2797E+01

1.0566E+01

S2

-3.9751E-02

2.0417E-02

4.7262E-02

-4.5425E-01

2.1701E+00

-6.5583E+00

1.3294E+01

-1.8698E+01

1.8521E+01

S3

-4.4713E-02

9.9945E-04

3.8021E-01

-2.3983E+00

9.8460E+00

-2.8011E+01

5.6528E+01

-8.1992E+01

8.5701E+01

S4

-1.3095E-02

9.4099E-02

-8.4283E-01

6.3737E+00

-3.1794E+01

1.0910E+02

-2.6492E+02

4.6197E+02

-5.8020E+02

S5

-4.3106E-02

-1.5799E-02

2.4512E-01

-1.9690E+00

9.0006E+00

-2.7328E+01

5.7833E+01

-8.7191E+01

9.4218E+01

S6

-6.8658E-02

7.3120E-02

-2.9866E-01

1.0078E+00

-2.7670E+00

5.7090E+00

-8.7060E+00

9.7690E+00

-8.0167E+00

S7

-1.4240E-01

1.5949E-01

-3.7223E-01

9.5198E-01

-1.9844E+00

3.0743E+00

-3.4925E+00

2.9107E+00

-1.7742E+00

S8

-1.6278E-01

1.4756E-01

-2.1319E-01

3.3074E-01

-4.1887E-01

3.9615E-01

-2.7382E-01

1.3739E-01

-4.9596E-02

S9

-6.5353E-02

2.3947E-02

-2.7641E-02

3.5445E-02

-3.1164E-02

1.8505E-02

-7.5857E-03

2.1347E-03

-4.0430E-04

S10

-4.0200E-03

2.7604E-03

-1.0986E-02

1.7456E-02

-1.4837E-02

8.3641E-03

-3.2894E-03

9.0938E-04

-1.7659E-04

S11

-1.7929E-01

7.4507E-02

-1.4801E-02

-1.7041E-04

1.0657E-03

-3.5252E-04

6.6630E-05

-8.4329E-06

7.4664E-07

S12

-1.9312E-01

1.0531E-01

-4.6354E-02

1.5727E-02

-4.0109E-03

7.6047E-04

-1.0692E-04

1.1126E-05

-8.5104E-07

TABLE 8

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

Example 5

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

As shown in fig. 9, the optical imaging lens, in order from an object side to an image side along an optical axis, comprises: a stop STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, and a filter E7.

In embodiment 5, the value of the total effective focal length f of the optical imaging lens is 5.47mm, the value of the f-number Fno of the optical imaging lens is 1.97, the value of the on-axis distance TTL from the object side surface S1 to the imaging plane S15 of the first lens E1 is 6.50mm, the value of the half ImgH of the diagonal length of the effective pixel region on the imaging plane S15 is 5.16mm, and the value of the half Semi-FOV of the maximum angle of view is 42.49 °.

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/distance, and the focal length are all millimeters (mm). Table 10 shows high-order term coefficients that can be used for each aspherical mirror surface in example 5, wherein each aspherical mirror surface type can be defined by formula (1) given in example 1 above.

TABLE 9

Watch 10

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

Examples6

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

As shown in fig. 11, the optical imaging lens, in order from an object side to an image side along an optical axis, comprises: a stop STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, and a filter E7.

In embodiment 6, the value of the total effective focal length f of the optical imaging lens is 5.50mm, the value of the f-number Fno of the optical imaging lens is 1.97, the value of the on-axis distance TTL from the object side surface S1 to the imaging plane S15 of the first lens E1 is 6.50mm, the value of half ImgH of the diagonal length of the effective pixel region on the imaging plane S15 is 5.29mm, and the value of half Semi-FOV of the maximum angle of view is 42.73 °.

Table 11 shows a basic parameter table of the optical imaging lens of embodiment 6, in which the units of the radius of curvature, the thickness/distance, and the focal length are all millimeters (mm). Table 12 shows high-order term coefficients that can be used for each aspherical mirror surface in example 6, wherein each aspherical mirror surface type can be defined by formula (1) given in example 1 above.

TABLE 11

Flour mark

A4

A6

A8

A10

A12

A14

A16

A18

A20

S1

-8.7997E-04

1.6523E-02

-3.2627E-02

-1.6104E-01

1.2834E+00

-4.1376E+00

8.0536E+00

-1.0430E+01

9.3031E+00

S2

-3.2593E-02

6.1505E-02

-3.6837E-01

1.6374E+00

-4.8391E+00

9.9250E+00

-1.4547E+01

1.5450E+01

-1.1913E+01

S3

-4.2068E-02

7.6623E-03

1.7094E-01

-7.1810E-01

1.8163E+00

-2.8867E+00

2.6469E+00

-7.7104E-01

-1.2071E+00

S4

-2.6649E-02

1.1247E-01

-7.6720E-01

4.2260E+00

-1.5549E+01

3.9550E+01

-7.1244E+01

9.1888E+01

-8.4825E+01

S5

-3.3801E-02

-9.2638E-02

9.2247E-01

-5.8303E+00

2.3751E+01

-6.5915E+01

1.2842E+02

-1.7852E+02

1.7780E+02

S6

-3.6149E-02

-1.4994E-02

3.1343E-02

-5.6959E-02

6.4928E-02

-1.3023E-01

3.1902E-01

-5.0924E-01

5.1021E-01

S7

-5.9400E-02

-6.2435E-02

2.8213E-01

-6.6816E-01

1.1428E+00

-1.4534E+00

1.3610E+00

-9.3120E-01

4.6237E-01

S8

-7.4593E-02

-6.8221E-02

1.7311E-01

-2.0312E-01

1.7212E-01

-1.1522E-01

6.0242E-02

-2.3641E-02

6.7440E-03

S9

-5.0334E-03

-9.8428E-02

9.5472E-02

-5.5413E-02

3.0766E-02

-1.8107E-02

8.5495E-03

-2.8142E-03

6.3124E-04

S10

4.8142E-02

-5.4788E-02

1.9888E-02

3.9581E-03

-1.1310E-03

-3.4351E-03

2.6095E-03

-9.1722E-04

1.9437E-04

S11

-1.7418E-01

7.3926E-02

5.4544E-03

-1.6624E-02

7.2182E-03

-1.7285E-03

2.6977E-04

-2.9122E-05

2.2235E-06

S12

-2.1467E-01

1.2120E-01

-4.5214E-02

1.1757E-02

-2.2163E-03

3.0780E-04

-3.1608E-05

2.3899E-06

-1.3152E-07

TABLE 12

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

Example 7

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

As shown in fig. 13, the optical imaging lens, in order from an object side to an image side along an optical axis, comprises: a stop STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, and a filter E7.

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 convex 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 convex image-side surface S6. The fourth lens element E4 has negative power, and has a concave object-side surface S7 and a convex image-side surface S8. The fifth lens element E5 has positive power, and has a concave object-side surface S9 and a convex image-side surface S10. The sixth lens element E6 has positive power, and has a convex object-side surface S11 and a concave image-side surface S12. Filter E7 has an object side S13 and an image side S14. The optical imaging lens has an imaging surface S15, and light from the object passes through the respective surfaces S1 to S14 in order and is finally imaged on the imaging surface S15.

In embodiment 7, the value of the total effective focal length f of the optical imaging lens is 5.40mm, the value of the f-number Fno of the optical imaging lens is 1.97, the value of the on-axis distance TTL from the object side surface S1 to the imaging plane S15 of the first lens E1 is 6.45mm, the value of half ImgH of the diagonal length of the effective pixel region on the imaging plane S15 is 5.29mm, and the value of half Semi-FOV of the maximum angle of view is 43.23 °.

Table 13 shows a basic parameter table of the optical imaging lens of embodiment 7, in which the units of the radius of curvature, the thickness/distance, and the focal length are all millimeters (mm). Table 14 shows high-order term coefficients that can be used for each aspherical mirror surface in example 7, wherein each aspherical mirror surface type can be defined by formula (1) given in example 1 above.

Watch 13

Flour mark

A4

A6

A8

A10

A12

A14

A16

A18

A20

S1

4.9808E-03

-4.7854E-02

3.9341E-01

-2.0193E+00

6.9185E+00

-1.6404E+01

2.7537E+01

-3.3134E+01

2.8633E+01

S2

-3.4233E-02

-6.0384E-02

8.0530E-01

-4.9525E+00

1.9501E+01

-5.1946E+01

9.6651E+01

-1.2793E+02

1.2119E+02

S3

-6.0870E-02

7.6815E-02

-1.8524E-01

5.6420E-01

-1.4605E-02

-6.2050E+00

2.3800E+01

-4.8842E+01

6.4032E+01

S4

-3.7487E-02

2.1015E-01

-2.1058E+00

1.6100E+01

-8.0811E+01

2.7821E+02

-6.7575E+02

1.1751E+03

-1.4676E+03

S5

-5.1412E-02

6.5262E-02

-4.3190E-01

7.3539E-01

5.2163E+00

-3.9287E+01

1.3056E+02

-2.6720E+02

3.6513E+02

S6

-7.0521E-02

9.1187E-02

-4.4509E-01

7.0801E-01

1.5346E+00

-1.0986E+01

2.8570E+01

-4.4774E+01

4.6602E+01

S7

-1.1577E-01

4.4037E-01

-2.8070E+00

1.1165E+01

-3.0250E+01

5.8128E+01

-8.0908E+01

8.2312E+01

-6.1116E+01

S8

-9.8665E-02

6.0037E-02

-2.5477E-01

7.0392E-01

-1.0730E+00

1.0538E+00

-7.1810E-01

3.5090E-01

-1.2393E-01

S9

-6.5893E-02

-6.6597E-02

2.2723E-01

-5.3308E-01

1.0729E+00

-1.5315E+00

1.5024E+00

-1.0326E+00

5.0393E-01

S10

-3.0339E-02

3.9347E-02

-6.1379E-02

7.4245E-02

-5.4918E-02

2.6999E-02

-9.3969E-03

2.3796E-03

-4.3988E-04

S11

-1.6688E-01

5.1706E-02

-1.2996E-03

-4.4763E-03

1.7934E-03

-3.8382E-04

5.3299E-05

-5.0874E-06

3.4004E-07

S12

-1.6344E-01

7.5628E-02

-2.9648E-02

9.6536E-03

-2.5848E-03

5.5308E-04

-9.1676E-05

1.1477E-05

-1.0627E-06

TABLE 14

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

In summary, examples 1 to 7 each satisfy the relationship shown in table 15.

Conditional expression (A) example	1	2	3	4	5	6	7
								TTL/ImgH	1.26	1.25	1.24	1.26	1.26	1.23	1.22
f4/f	-1.80	-1.63	-1.31	-2.04	-1.53	-1.93	-3.11
								f1×tan(Semi-FOV)(mm)	4.67	4.08	4.23	4.52	5.59	4.94	4.52
R2/f12	1.10	1.36	1.37	1.10	0.87	1.20	1.27
								CT3/T34	1.41	1.47	1.28	1.18	2.21	1.40	1.51
\|f5/f6\|	1.06	0.97	1.01	1.24	1.21	1.41	1.84
								(f4+f5)/f1	-1.17	-1.02	-0.83	-1.39	-0.66	-1.22	-1.97
SAG32/SAG31	2.16	2.00	2.31	2.32	2.77	3.40	3.62
								\|SAG41+SAG42\|/CT4	2.20	1.54	1.29	1.85	0.87	2.34	2.09
(ET2+ET3)/T23	1.74	2.04	2.18	1.38	1.31	2.02	2.04
								f345/f	0.94	1.02	0.72	0.96	1.10	0.83	1.21

Watch 15

The present application also provides an imaging Device, which is provided with an electron sensing element to form an image, wherein the electron sensing element may be a Charge Coupled Device (CCD) or a Complementary Metal Oxide Semiconductor (CMOS). The imaging device may be a stand-alone imaging device such as a digital camera, or may be an imaging module integrated on a mobile electronic device such as a mobile phone. The imaging device is equipped with the optical imaging lens described above.

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 protection covered by the present application is not limited to the embodiments with a specific combination of the features described above, but also covers other embodiments with any combination of the features described above or their equivalents without departing from the scope of the present application. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims

1. The optical imaging lens assembly, in order from an object side to an image side along an optical axis, comprises:

a first lens;

a second lens having a negative optical power;

a third lens;

a fourth lens having a negative optical power;

a fifth lens; and

a sixth lens;

wherein ImgH is more than or equal to 5 mm; and

TTL/ImgH≤1.28，

wherein ImgH is a half of a diagonal length of an effective pixel area on an imaging surface of the optical imaging lens, and TTL is a distance on the optical axis from an object side surface of the first lens element to the imaging surface of the optical imaging lens.

2. The optical imaging lens of claim 1, wherein the effective focal length f4 of the fourth lens and the total effective focal length f of the optical imaging lens satisfy-3.5 < f4/f < -1.0.

3. The optical imaging lens of claim 1, wherein an effective focal length f1 of the first lens and a half Semi-FOV of a maximum field angle of the optical imaging lens satisfy 4mm < f1 xtan (Semi-FOV) < 6 mm.

4. The optical imaging lens of claim 1, wherein a radius of curvature R2 of an image side surface of the first lens and a combined focal length f12 of the first lens and the second lens satisfy 0.5 < R2/f12 < 1.5.

5. The optical imaging lens of claim 1, wherein a center thickness CT3 of the third lens on the optical axis and a separation distance T34 of the third lens and the fourth lens on the optical axis satisfy 1.0 < CT3/T34 < 2.5.

6. The optical imaging lens of claim 1, characterized in that the effective focal length f5 of the fifth lens and the effective focal length f6 of the sixth lens satisfy 0.5 < | f5/f6| < 2.0.

7. The optical imaging lens of claim 1, characterized in that the effective focal length f1 of the first lens, the effective focal length f4 of the fourth lens and the effective focal length f5 of the fifth lens satisfy-2 < (f4+ f5)/f1 < 0.

8. The optical imaging lens of claim 1, wherein an on-axis distance SAG31 between an intersection point of an object-side surface of the third lens and the optical axis to a vertex of an effective radius of the object-side surface of the third lens and an on-axis distance SAG32 between an intersection point of an image-side surface of the third lens and the optical axis to a vertex of an effective radius of the image-side surface of the third lens satisfy 2 ≦ SAG32/SAG31 < 4.

9. The optical imaging lens of claim 1, wherein an on-axis distance SAG41 between an intersection point of an object-side surface of the fourth lens and the optical axis to an effective radius vertex of the object-side surface of the fourth lens, an on-axis distance SAG42 between an intersection point of an image-side surface of the fourth lens and the optical axis to an effective radius vertex of an image-side surface of the fourth lens, and a center thickness CT4 of the fourth lens on the optical axis satisfy 0.5 < | SAG41+ SAG42|/CT4 < 2.5.

10. The optical imaging lens of claim 1, wherein the edge thickness ET2 of the second lens, the edge thickness ET3 of the third lens, and the separation distance T23 between the second lens and the third lens on the optical axis satisfy 1.0 < (ET2+ ET3)/T23 < 2.5.

11. The optical imaging lens of claim 1, wherein a combined focal length f345 of the third lens, the fourth lens and the fifth lens and a total effective focal length f of the optical imaging lens satisfy 0.5 < f345/f < 1.5.

12. The optical imaging lens according to any one of claims 1 to 11, wherein the object-side surface of the third lens is convex and the image-side surface of the third lens is convex.

13. The optical imaging lens according to any one of claims 1 to 11, wherein the image side surface of the fifth lens is convex.

14. The optical imaging lens assembly, in order from an object side to an image side along an optical axis, comprises:

a first lens;

a second lens having a negative optical power;

a third lens;

a fourth lens having a negative optical power;

a fifth lens; and

a sixth lens;

wherein, the half of the diagonal length ImgH of the effective pixel area on the imaging surface of the optical imaging lens and 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 satisfy TTL/ImgH is less than or equal to 1.30;

an effective focal length f1 of the first lens and a half of a Semi-FOV of a maximum field angle of the optical imaging lens satisfy 4mm < f1 × tan (Semi-FOV) < 6 mm.

15. The optical imaging lens of claim 14, wherein the effective focal length f4 of the fourth lens and the total effective focal length f of the optical imaging lens satisfy-3.5 < f4/f < -1.0.

16. The optical imaging lens of claim 15, wherein ImgH, which is half of the diagonal length of the effective pixel area on the imaging surface of the optical imaging lens, satisfies ImgH ≥ 5 mm.

17. The optical imaging lens of claim 14, wherein a radius of curvature R2 of an image side surface of the first lens and a combined focal length f12 of the first lens and the second lens satisfy 0.5 < R2/f12 < 1.5.

18. The optical imaging lens of claim 14, wherein a center thickness CT3 of the third lens on the optical axis and a separation distance T34 of the third lens and the fourth lens on the optical axis satisfy 1.0 < CT3/T34 < 2.5.

19. The optical imaging lens of claim 14, wherein the effective focal length f5 of the fifth lens and the effective focal length f6 of the sixth lens satisfy 0.5 < | f5/f6| < 2.0.

20. The optical imaging lens of claim 14, wherein the effective focal length f1 of the first lens, the effective focal length f4 of the fourth lens, and the effective focal length f5 of the fifth lens satisfy-2 < (f4+ f5)/f1 < 0.

21. The optical imaging lens of claim 14, wherein an on-axis distance SAG31 between an intersection point of an object-side surface of the third lens and the optical axis to a vertex of an effective radius of the object-side surface of the third lens and an on-axis distance SAG32 between an intersection point of an image-side surface of the third lens and the optical axis to a vertex of an effective radius of the image-side surface of the third lens satisfy 2 ≦ SAG32/SAG31 < 4.

22. The optical imaging lens of claim 14, wherein an on-axis distance SAG41 between an intersection point of an object-side surface of the fourth lens and the optical axis to an effective radius vertex of the object-side surface of the fourth lens, an on-axis distance SAG42 between an intersection point of an image-side surface of the fourth lens and the optical axis to an effective radius vertex of an image-side surface of the fourth lens, and a center thickness CT4 of the fourth lens on the optical axis satisfy 0.5 < | SAG41+ SAG42|/CT4 < 2.5.

23. The optical imaging lens of claim 14, wherein the edge thickness ET2 of the second lens, the edge thickness ET3 of the third lens, and the separation distance T23 between the second lens and the third lens on the optical axis satisfy 1.0 < (ET2+ ET3)/T23 < 2.5.

24. The optical imaging lens of claim 14, wherein a combined focal length f345 of the third lens, the fourth lens and the fifth lens and a total effective focal length f of the optical imaging lens satisfy 0.5 < f345/f < 1.5.

25. The optical imaging lens of any one of claims 14 to 24, wherein an object side surface of the third lens is convex and an image side surface of the third lens is convex.

26. The optical imaging lens of any one of claims 14 to 24, wherein the image side surface of the fifth lens is convex.