CN212135053U - Optical imaging lens - Google Patents

Abstract

The application discloses an optical imaging lens, which sequentially comprises from an object side to an image side along an optical axis: a first lens having a positive optical power; a second lens having an optical power; a third lens having optical power; a fourth lens having a negative optical power; the fifth lens with positive focal power has a convex object-side surface and a convex image-side surface; and a sixth lens having a negative optical power. The effective half aperture DT22 of the image side surface of the second 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 the following conditions: DT22/TTL 10 is less than or equal to 1.75.

Description

Optical imaging lens

Technical Field

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

Background

In recent years, with the rapid development of smart terminals such as mobile phones and tablet computers, the photographing function of the smart terminals such as mobile phones and tablet computers is becoming a field in which manufacturers of smart terminals such as mobile phones and tablet computers of various brands strive for. Generally, the larger the pixel of the chip, the larger the image plane. At present, the main camera element of an optical imaging lens produced by intelligent terminal lead manufacturers such as mainstream mobile phones, tablet computers and the like basically reaches 4800 ten thousand pixels, and six or seven lenses are adopted.

Meanwhile, due to the requirement of the thickness design of the bodies of intelligent terminals such as mobile phones and tablet computers, the height of the optical imaging lens applied to the intelligent terminals such as the mobile phones and the tablet computers also has a corresponding requirement, and the optical imaging lens gradually tends to be ultra-thin, so that the optical imaging lens becomes the development trend of the intelligent terminals such as high-end mobile phones and the tablet computers.

How to realize the characteristics of an ultra-large image plane, ultra-thinness and the like is one of the problems to be solved in the field of lens design on the basis that the optical imaging lens can clearly image the scenery.

SUMMERY OF THE UTILITY MODEL

The present application provides an optical imaging lens, in order from an object side to an image side along an optical axis, comprising: a first lens having a positive optical power; a second lens having an optical power; a third lens having optical power; a fourth lens having a negative optical power; the fifth lens with positive focal power has a convex object-side surface and a convex image-side surface; and a sixth lens having a negative optical power; the effective half aperture DT22 of the image side surface of the second lens element and the distance TTL between the object side surface of the first lens element and the imaging surface of the optical imaging lens on the optical axis can satisfy the following conditions: DT22/TTL 10 is less than or equal to 1.75.

In one embodiment, the object-side surface of the first lens element and the image-side surface of the sixth lens element have at least one aspheric mirror surface.

In one embodiment, the effective half aperture DT22 of the image side surface of the second lens and the half ImgH of the diagonal length of the effective pixel area on the imaging surface of the optical imaging lens satisfy: 1.5 < DT22/ImgH × 10 < 2.2.

In one embodiment, a distance TTL from an object side surface of the first lens element to an imaging surface of the optical imaging lens on an optical axis and a half ImgH of a diagonal length of an effective pixel area on the imaging surface of the optical imaging lens may satisfy: TTL/ImgH is less than 1.3.

In one embodiment, the effective focal length f1 of the first lens and the effective focal length f5 of the fifth lens may satisfy: 1.1 < f1/f5 < 1.6.

In one embodiment, the effective focal length f2 of the second lens, the effective focal length f4 of the fourth lens, and the effective focal length f6 of the sixth lens may satisfy: 0.1 < f2/(f4+ f6) < 1.3.

In one embodiment, the radius of curvature R1 of the object-side surface of the first lens, the radius of curvature R2 of the image-side surface of the first lens, 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 may satisfy: 0.3 < (R1+ R2)/(R3+ R4) < 1.3.

In one embodiment, the radius of curvature R11 of the object-side surface of the sixth lens and the radius of curvature R12 of the image-side surface of the sixth lens may satisfy: 0.5 < (R11-R12)/(R11+ R12) < 1.0.

In one embodiment, the central thickness CT5 of the fifth lens on the optical axis, the separation distance T56 of the fifth lens and the sixth lens on the optical axis, and the central thickness CT6 of the sixth lens on the optical axis may satisfy: 0.7 < CT5/(T56+ CT6) < 1.3.

In one embodiment, the effective half aperture DT32 of the image-side surface of the third lens and the effective half aperture DT22 of the image-side surface of the second lens satisfy: 1.1 < DT32/DT22 < 1.4.

In one embodiment, the effective half aperture DT61 of the object side surface of the sixth lens, the effective half aperture DT62 of the image side surface of the sixth lens, and half ImgH of the diagonal length of the effective pixel region on the imaging surface of the optical imaging lens may satisfy: 1.3 < (DT61+ DT62)/ImgH < 1.7.

In one embodiment, the combined focal length f12 of the first and second lenses, the central thickness CT1 of the first lens on the optical axis, and the central thickness CT2 of the second lens on the optical axis may satisfy: 5.2 < f12/(CT1+ CT2) < 7.0.

In one embodiment, the central thickness CT5 of the fifth lens on the optical axis and the edge thickness ET5 of the fifth lens may satisfy: 2.0 < CT5/ET5 < 5.4.

In one embodiment, a distance SAG41 on the optical axis from the intersection point of the object-side surface of the fourth lens and the optical axis to the effective radius vertex of the object-side surface of the fourth lens, a distance SAG42 on the optical axis from the intersection point of the image-side surface of the fourth lens and the optical axis to the effective radius vertex of the image-side surface of the fourth lens, and a distance SAG62 on the optical axis from the intersection point of the image-side surface of the sixth lens and the optical axis to the effective radius vertex of the image-side surface of the sixth lens may satisfy: 0.7 < (SAG41+ SAG42)/SAG62 < 1.2.

Another aspect of the present application provides an optical imaging lens, in order from an object side to an image side along an optical axis, comprising: a first lens having a positive optical power; a second lens having an optical power; a third lens having optical power; a fourth lens having a negative optical power; the fifth lens with positive focal power has a convex object-side surface and a convex image-side surface; and a sixth lens having a negative optical power. The effective half aperture DT22 of the image side surface of the second lens and the half of the diagonal length ImgH of the effective pixel area on the imaging surface of the optical imaging lens can satisfy the following conditions: 1.5 < DT22/ImgH × 10 < 2.2.

The optical imaging lens has the beneficial effects of super-large image surface, ultra-thin property, high imaging quality and the like 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 of each lens.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

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; and

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.

An optical imaging lens according to an exemplary embodiment of the present application may include six lenses having optical powers, which are a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens, respectively. The six lenses are arranged along the optical axis in sequence from the object side to the image side. Any adjacent two lenses of the first lens to the sixth lens can have a spacing distance therebetween.

In an exemplary embodiment, the first lens may have a positive optical power; the second lens may have a positive or negative optical power; the third lens may have a positive optical power or a negative optical power; the fourth lens may have a negative optical power; the fifth lens element has positive focal power, and has a convex object-side surface and a convex image-side surface; and the sixth lens may have a negative optical power.

In an exemplary embodiment, an optical imaging lens according to the present application may satisfy: DT22/TTL 10 is less than or equal to 1.75, wherein DT22 is the effective half aperture of the image side surface of the second lens, and TTL is the distance between the object side surface of the first lens and the imaging surface of the optical imaging lens on the optical axis. The requirement that DT22/TTL is multiplied by 10 is less than or equal to 1.75 is met, the system yield is favorably improved, under the conditions that the system Fno is not influenced and the relative illumination at the maximum image plane of the system is met, the effective half aperture of the image side surface of the second lens is reduced as far as possible, a part of vignetting can be effectively controlled, the incident light of the redundant part is blocked, and therefore the tolerance sensitivity of the system is reduced.

The second lens has negative focal power, and is favorable for realizing the astigmatism effect. By reasonably selecting the focal power of the second lens and properly reducing the effective caliber of the second lens, the primary aberration of the optical system can be better corrected, so that the system has good imaging quality and lower tolerance sensitivity, and the yield of the system is favorably improved.

In an exemplary embodiment, an optical imaging lens according to the present application may satisfy: TTL/ImgH < 1.3, wherein, TTL is the distance between the object side surface of the first lens and the imaging surface of the optical imaging lens on the optical axis, and ImgH is half of the diagonal length of the effective pixel area on the imaging surface of the optical imaging lens. More specifically, TTL and ImgH may further satisfy: TTL/ImgH is less than 1.24. The TTL/ImgH is less than 1.3, the super-large image plane and the ultra-thinness of the lens structure are facilitated to be realized, and the total length of the system can be shortened to realize the ultra-thin structure of the lens while the lens has the super-large image plane.

In an exemplary embodiment, an optical imaging lens according to the present application may satisfy: 1.5 < DT22/ImgH × 10 < 2.2, wherein DT22 is the effective half aperture of the image side surface of the second lens, and ImgH is half the length of the diagonal line of the effective pixel area on the imaging surface of the optical imaging lens. More specifically, DT22 and ImgH further satisfy: 2.0 < DT22/ImgH × 10 < 2.2. The requirement that DT22/ImgH is more than 1.5 and less than 2.2 is met, and tolerance sensitivity of the system is favorably reduced.

In an exemplary embodiment, an optical imaging lens according to the present application may satisfy: 1.1 < f1/f5 < 1.6, wherein f1 is the effective focal length of the first lens and f5 is the effective focal length of the fifth lens. More specifically, f1 and f5 may further satisfy: 1.1 < f1/f5 < 1.3. Satisfying 1.1 < f1/f5 < 1.6, being beneficial to the reasonable configuration of focal power and reducing aberration.

In an exemplary embodiment, an optical imaging lens according to the present application may satisfy: 0.1 < f2/(f4+ f6) < 1.3, where f2 is the effective focal length of the second lens, f4 is the effective focal length of the fourth lens, and f6 is the effective focal length of the sixth lens. The optical power distribution of each lens in space is favorably reasonable, and the aberration of the photographic lens is favorably reduced, wherein f2/(f4+ f6) < 1.3 and is more favorable than 0.1.

In an exemplary embodiment, an optical imaging lens according to the present application may satisfy: 0.3 < (R1+ R2)/(R3+ R4) < 1.3, wherein R1 is a radius of curvature of an object-side surface of the first lens, R2 is a radius of curvature of an image-side surface of the first lens, R3 is a radius of curvature of an object-side surface of the second lens, and R4 is a radius of curvature of an image-side surface of the second lens. Satisfies 0.3 < (R1+ R2)/(R3+ R4) < 1.3, the astigmatism contributions of the first lens and the second lens can be effectively controlled, and the image quality of the middle field and the aperture band can be effectively and reasonably controlled.

In an exemplary embodiment, an optical imaging lens according to the present application may satisfy: 0.5 < (R11-R12)/(R11+ R12) < 1.0, wherein R11 is a radius of curvature of an object-side surface of the sixth lens, and R12 is a radius of curvature of an image-side surface of the sixth lens. More specifically, R11 and R12 may further satisfy: 0.6 < (R11-R12)/(R11+ R12) < 0.8. Satisfies the following conditions: 0.5 < (R11-R12)/(R11+ R12) < 1.0, the astigmatism contributions of the object side and the image side of the sixth lens can be effectively controlled, and the image quality of the middle field and the aperture band can be effectively and reasonably controlled.

In an exemplary embodiment, an optical imaging lens according to the present application may satisfy: 0.7 < CT5/(T56+ CT6) < 1.3, where CT5 is the center thickness of the fifth lens on the optical axis, T56 is the separation distance between the fifth lens and the sixth lens on the optical axis, and CT6 is the center thickness of the sixth lens on the optical axis. The requirements of 0.7 < CT5/(T56+ CT6) < 1.3 are met, the influence on the space distribution of the lens caused by the overlarge thickness of the lens is favorably avoided, and the assembly of the photographic lens is convenient.

In an exemplary embodiment, an optical imaging lens according to the present application may satisfy: 1.1 < DT32/DT22 < 1.4, wherein DT32 is the effective half aperture of the image side surface of the third lens and DT22 is the effective half aperture of the image side surface of the second lens. The optical imaging lens meets the requirement that DT32/DT22 is more than 1.1 and less than 1.4, and is favorable for enabling the spatial distribution of the optical imaging lens to be more reasonable on the basis of realizing large image plane characteristics.

In an exemplary embodiment, an optical imaging lens according to the present application may satisfy: 1.3 < (DT61+ DT62)/ImgH < 1.7, wherein DT61 is the effective half aperture of the object side surface of the sixth lens, DT62 is the effective half aperture of the image side surface of the sixth lens, and ImgH is half the diagonal length of the effective pixel region on the imaging surface of the optical imaging lens. More specifically, DT61, DT62 and ImgH may further satisfy: 1.4 < (DT61+ DT62)/ImgH < 1.6. The optical imaging lens meets the requirement that (DT61+ DT62)/ImgH is less than 1.3, so that light can be smoothly transmitted in the optical imaging lens, and system aberration can be reduced.

In an exemplary embodiment, an optical imaging lens according to the present application may satisfy: 5.2 < f12/(CT1+ CT2) < 7.0, where f12 is the combined focal length of the first lens and the second lens, CT1 is the central thickness of the first lens on the optical axis, and CT2 is the central thickness of the second lens on the optical axis. Satisfies f12/(CT1+ CT2) < 7.0 < 5.2, and is beneficial to reducing aberration.

In an exemplary embodiment, an optical imaging lens according to the present application may satisfy: 2.0 < CT5/ET5 < 5.4, where CT5 is the central thickness of the fifth lens on the optical axis and ET5 is the edge thickness of the fifth lens. The requirement of 2.0 < CT5/ET5 < 5.4 is met, and the processing and molding of the fifth lens are facilitated.

In an exemplary embodiment, an optical imaging lens according to the present application may satisfy: 0.7 < (SAG41+ SAG42)/SAG62 < 1.2, wherein SAG41 is a distance on an optical axis from 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, SAG42 is a distance on the optical axis from an intersection point of an image side surface of the fourth lens and the optical axis to an effective radius vertex of an image side surface of the fourth lens, and SAG62 is a distance on the optical axis from an intersection point of an image side surface of the sixth lens and the optical axis to an effective radius vertex of an image side surface of the sixth lens. The requirement of 0.7 < (SAG41+ SAG42)/SAG62 < 1.2 is met, the bending degree of the fourth lens and the sixth lens is favorably limited, and the processing and forming difficulty of the lenses is reduced.

In an exemplary embodiment, an optical imaging lens according to the present application further includes a stop disposed 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 processability of the optical imaging lens can be improved, and the optical imaging lens is more favorable for production and processing and can be suitable for portable electronic products. The optical imaging lens with the configuration has the characteristics of ultrathin thickness, large aperture, large image plane, good imaging quality and the like.

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 in imaging can be eliminated as much as possible, and the imaging quality is further improved. 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 includes, in order from an object side to an image side: 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, a filter E7, and an image forming surface S15.

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 negative 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 light from the object sequentially passes through the respective surfaces S1 to S14 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 this example, the total effective focal length f of the optical imaging lens is 5.51mm, the total length TTL of the optical imaging lens (i.e., the distance on the optical axis from the object side surface S1 of the first lens E1 to the imaging surface S15 of the optical imaging lens) is 6.52mm, the half ImgH of the diagonal length of the effective pixel region on the imaging surface S15 of the optical imaging lens is 5.29mm, and the effective half aperture DT22 of the image side surface of the second lens is 1.13 mm.

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 coefficient A of each of the aspherical mirror surfaces S1 to S12 used 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 deviation of the convergent focal points of light rays of different wavelengths after passing through the lens. Fig. 2B shows an astigmatism curve representing a meridional field curvature and a sagittal field curvature of the optical imaging lens of embodiment 1. Fig. 2C shows a distortion curve of the optical imaging lens of embodiment 1, which represents distortion magnitude values corresponding to different image heights. Fig. 2D shows a chromatic aberration of magnification curve of the optical imaging lens of embodiment 1, which represents a deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 2A to 2D, the optical imaging lens according to embodiment 1 can achieve good imaging quality.

Example 2

An optical imaging lens according to embodiment 2 of the present application is described below with reference to fig. 3 to 4D. 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 includes, in order from an object side to an image side: 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, a filter E7, and an image forming surface S15.

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 concave 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 negative 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 light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging surface S15.

In this example, the total effective focal length f of the optical imaging lens is 5.46mm, the total length TTL of the optical imaging lens is 6.51mm, the half ImgH of the diagonal length of the effective pixel area on the imaging surface S15 of the optical imaging lens is 5.29mm, and the effective half aperture DT22 of the image side surface of the second lens is 1.14 mm.

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

Example 3

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

As shown in fig. 5, the optical imaging lens includes, in order from an object side to an image side: 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, a filter E7, and an image forming surface S15.

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 concave image-side surface S6. The fourth lens element E4 has negative 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 convex object-side surface S9 and a convex image-side surface S10. The sixth lens element E6 has negative 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 light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging surface S15.

In this example, the total effective focal length f of the optical imaging lens is 5.46mm, the total length TTL of the optical imaging lens is 6.51mm, the half ImgH of the diagonal length of the effective pixel area on the imaging surface S15 of the optical imaging lens is 5.29mm, and the effective half aperture DT22 of the image side surface of the second lens is 1.10 mm.

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

-1.9217E-03

4.9043E-02

-2.9937E-01

1.1851E+00

-3.1425E+00

5.7997E+00

-7.6293E+00

7.2479E+00

-4.9884E+00

S2

-2.7831E-02

-3.7722E-02

4.6593E-01

-2.2925E+00

7.1769E+00

-1.5304E+01

2.2938E+01

-2.4551E+01

1.8825E+01

S3

-5.4109E-02

1.8926E-01

-1.3804E+00

7.5970E+00

-2.7704E+01

6.9552E+01

-1.2351E+02

1.5730E+02

-1.4400E+02

S4

-6.6236E-03

-1.0792E-01

1.5213E+00

-1.0476E+01

4.8360E+01

-1.5574E+02

3.5759E+02

-5.9179E+02

7.0671E+02

S5

-6.5173E-02

1.8045E-01

-1.3702E+00

6.8436E+00

-2.3709E+01

5.7839E+01

-1.0101E+02

1.2728E+02

-1.1552E+02

S6

-8.0000E-02

8.3792E-02

-3.0374E-01

9.3418E-01

-2.3988E+00

4.7055E+00

-6.8748E+00

7.4101E+00

-5.8316E+00

S7

-1.2292E-01

9.1101E-02

-2.1919E-01

6.2760E-01

-1.3715E+00

2.1020E+00

-2.2821E+00

1.7766E+00

-9.9207E-01

S8

-1.1591E-01

5.5849E-02

-6.2266E-02

1.2520E-01

-2.0449E-01

2.2859E-01

-1.7734E-01

9.7284E-02

-3.7831E-02

S9

-2.7263E-02

-6.9320E-03

-1.5849E-02

4.3489E-02

-4.4016E-02

2.6773E-02

-1.0944E-02

3.1044E-03

-6.1533E-04

S10

-3.0452E-02

3.1322E-02

-4.3629E-02

4.9603E-02

-3.6551E-02

1.8987E-02

-7.1499E-03

1.9399E-03

-3.7473E-04

S11

-2.6524E-01

1.1456E-01

-1.2566E-02

-1.0507E-02

6.2894E-03

-1.8158E-03

3.3560E-04

-4.2822E-05

3.8708E-06

S12

-2.8274E-01

1.7748E-01

-8.7923E-02

3.3149E-02

-9.3778E-03

1.9753E-03

-3.0887E-04

3.5738E-05

-3.0359E-06

TABLE 6

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

Example 4

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

As shown in fig. 7, the optical imaging lens includes, in order from an object side to an image side: 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, a filter E7, and an image forming surface S15.

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 concave 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 negative 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 light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging surface S15.

In this example, the total effective focal length f of the optical imaging lens is 5.46mm, the total length TTL of the optical imaging lens is 6.51mm, the half ImgH of the diagonal length of the effective pixel area on the imaging surface S15 of the optical imaging lens is 5.29mm, and the effective half aperture DT22 of the image side surface of the second lens is 1.11 mm.

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

TABLE 8

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

Example 5

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

As shown in fig. 9, the optical imaging lens includes, in order from an object side to an image side: 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, a filter E7, and an image forming surface S15.

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 negative power, and has a concave object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has negative power, and has a convex 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 negative 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 light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging surface S15.

In this example, the total effective focal length f of the optical imaging lens is 5.46mm, the total length TTL of the optical imaging lens is 6.51mm, the half ImgH of the diagonal length of the effective pixel area on the imaging surface S15 of the optical imaging lens is 5.29mm, and the effective half aperture DT22 of the image side surface of the second lens is 1.12 mm.

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

Flour mark

A4

A6

A8

A10

A12

A14

A16

A18

A20

S1

-5.0654E-04

2.8906E-02

-1.5072E-01

5.5776E-01

-1.4388E+00

2.6495E+00

-3.5533E+00

3.5168E+00

-2.5782E+00

S2

-2.6874E-02

-4.2989E-03

3.3755E-01

-1.8494E+00

6.0117E+00

-1.3058E+01

1.9689E+01

-2.0935E+01

1.5714E+01

S3

-6.4929E-02

3.2879E-01

-2.5001E+00

1.4165E+01

-5.3640E+01

1.3993E+02

-2.5799E+02

3.4091E+02

-3.2376E+02

S4

-6.3849E-03

-2.6931E-01

3.5721E+00

-2.4592E+01

1.1058E+02

-3.4244E+02

7.5124E+02

-1.1845E+03

1.3463E+03

S5

-4.9976E-02

4.5563E-02

-1.2001E-01

-3.4701E-01

4.0588E+00

-1.6751E+01

4.1812E+01

-7.0051E+01

8.1516E+01

S6

-7.9779E-02

9.5747E-02

-3.2181E-01

1.0251E+00

-2.5805E+00

4.7108E+00

-6.1648E+00

5.8064E+00

-3.9349E+00

S7

-1.2888E-01

4.8591E-02

5.8037E-02

-2.2402E-01

3.4373E-01

-3.2874E-01

2.0612E-01

-8.0754E-02

1.6187E-02

S8

-1.1822E-01

2.6880E-02

7.6893E-02

-1.7650E-01

2.0975E-01

-1.6567E-01

9.1522E-02

-3.5740E-02

9.8677E-03

S9

-3.0588E-02

-1.2693E-02

7.6154E-03

1.1632E-02

-1.7744E-02

1.2087E-02

-5.2073E-03

1.5261E-03

-3.0969E-04

S10

-8.4647E-03

-1.9555E-03

-1.0024E-02

2.4485E-02

-2.2149E-02

1.2234E-02

-4.6003E-03

1.2110E-03

-2.2412E-04

S11

-2.6398E-01

1.0894E-01

-2.7709E-03

-1.7278E-02

8.7935E-03

-2.3824E-03

4.1919E-04

-5.1044E-05

4.4026E-06

S12

-3.0029E-01

1.9100E-01

-9.3672E-02

3.4764E-02

-9.6954E-03

2.0175E-03

-3.1197E-04

3.5700E-05

-2.9979E-06

Watch 10

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

Example 6

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

As shown in fig. 11, the optical imaging lens includes, in order from an object side to an image side: 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, a filter E7, and an image forming surface S15.

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 negative power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has negative power, and has a convex 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 negative 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 light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging surface S15.

In this example, the total effective focal length f of the optical imaging lens is 5.46mm, the total length TTL of the optical imaging lens is 6.51mm, the half ImgH of the diagonal length of the effective pixel area on the imaging surface S15 of the optical imaging lens is 5.29mm, and the effective half aperture DT22 of the image side surface of the second lens is 1.08 mm.

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

TABLE 12

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

Example 7

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

As shown in fig. 13, the optical imaging lens includes, in order from an object side to an image side: 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, a filter E7, and an image forming surface S15.

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 negative power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has negative power, and has a concave object-side surface S7 and a 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 negative 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 light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging surface S15.

In this example, the total effective focal length f of the optical imaging lens is 5.47mm, the total length TTL of the optical imaging lens is 6.51mm, the half ImgH of the diagonal length of the effective pixel area on the imaging surface S15 of the optical imaging lens is 5.29mm, and the effective half aperture DT22 of the image side surface of the second lens is 1.09 mm.

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

-5.0494E-04

3.5604E-02

-2.0912E-01

8.2048E-01

-2.1577E+00

3.9357E+00

-5.0915E+00

4.7334E+00

-3.1761E+00

S2

-3.2680E-02

-3.5237E-02

4.9383E-01

-2.5332E+00

8.2616E+00

-1.8376E+01

2.8790E+01

-3.2300E+01

2.6051E+01

S3

-5.4568E-02

1.4230E-01

-9.0695E-01

5.1162E+00

-1.9150E+01

4.8975E+01

-8.7942E+01

1.1247E+02

-1.0276E+02

S4

-7.9730E-03

-9.6038E-02

1.5240E+00

-1.0942E+01

5.1902E+01

-1.6986E+02

3.9296E+02

-6.5129E+02

7.7565E+02

S5

-5.4922E-02

1.4334E-02

-7.1000E-02

4.9161E-01

-3.5529E+00

1.5929E+01

-4.5799E+01

8.8451E+01

-1.1754E+02

S6

-9.7322E-02

2.2574E-01

-1.1601E+00

4.2783E+00

-1.1105E+01

2.0389E+01

-2.6866E+01

2.5632E+01

-1.7700E+01

S7

-1.3569E-01

1.0658E-01

-1.6167E-01

1.4835E-01

1.4548E-01

-7.5468E-01

1.2904E+00

-1.3258E+00

9.1189E-01

S8

-1.1846E-01

6.0483E-02

-7.8502E-02

1.6239E-01

-2.6228E-01

2.9494E-01

-2.3388E-01

1.3261E-01

-5.3746E-02

S9

-2.6698E-02

-7.6329E-03

-1.2635E-02

3.6890E-02

-3.6276E-02

2.1095E-02

-8.2019E-03

2.2064E-03

-4.1303E-04

S10

-2.6155E-02

2.0286E-02

-2.2724E-02

2.3339E-02

-1.4953E-02

7.1373E-03

-2.7095E-03

7.8269E-04

-1.6327E-04

S11

-2.7314E-01

1.1713E-01

-1.2270E-02

-1.0857E-02

6.3830E-03

-1.8269E-03

3.3529E-04

-4.2467E-05

3.8060E-06

S12

-2.9068E-01

1.8207E-01

-8.9522E-02

3.3457E-02

-9.3804E-03

1.9586E-03

-3.0371E-04

3.4867E-05

-2.9410E-06

TABLE 14

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

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

Watch 15

The present application also provides an imaging device whose electron photosensitive element may be a photo-coupled device (CCD) or a complementary metal oxide semiconductor device (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 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 (26)

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

a first lens having a positive optical power;

a second lens having an optical power;

a third lens having optical power;

a fourth lens having a negative optical power;

the fifth lens with positive focal power has a convex object-side surface and a convex image-side surface; and

a sixth lens having a negative optical power;

an effective semi-aperture DT22 of an image side surface of the second lens element and a distance TTL between an object side surface of the first lens element and an imaging surface of the optical imaging lens on the optical axis satisfy: DT22/TTL 10 is less than or equal to 1.75.

2. The optical imaging lens of claim 1, wherein a distance TTL between an object side surface of the first lens element and an imaging surface of the optical imaging lens on the optical axis and a half ImgH of a diagonal length of an effective pixel area on the imaging surface of the optical imaging lens satisfy: TTL/ImgH is less than 1.3.

3. The optical imaging lens of claim 1, wherein the effective focal length f1 of the first lens and the effective focal length f5 of the fifth lens satisfy: 1.1 < f1/f5 < 1.6.

4. The optical imaging lens of claim 1, wherein the effective focal length f2 of the second lens, the effective focal length f4 of the fourth lens, and the effective focal length f6 of the sixth lens satisfy: 0.1 < f2/(f4+ f6) < 1.3.

5. The optical imaging lens of claim 1, wherein the radius of curvature R1 of the object-side surface of the first lens, the radius of curvature R2 of the image-side surface of the first lens, 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: 0.3 < (R1+ R2)/(R3+ R4) < 1.3.

6. The optical imaging lens of claim 1, wherein the radius of curvature R11 of the object-side surface of the sixth lens and the radius of curvature R12 of the image-side surface of the sixth lens satisfy: 0.5 < (R11-R12)/(R11+ R12) < 1.0.

7. The optical imaging lens according to claim 1, wherein a center thickness CT5 of the fifth lens on the optical axis, a separation distance T56 of the fifth lens and the sixth lens on the optical axis, and a center thickness CT6 of the sixth lens on the optical axis satisfy: 0.7 < CT5/(T56+ CT6) < 1.3.

8. The optical imaging lens of claim 1, wherein the effective half aperture DT32 of the image side surface of the third lens and the effective half aperture DT22 of the image side surface of the second lens satisfy: 1.1 < DT32/DT22 < 1.4.

9. The optical imaging lens according to claim 1, wherein an effective half aperture DT61 of an object side surface of the sixth lens, an effective half aperture DT62 of an image side surface of the sixth lens, and a half ImgH of a diagonal length of an effective pixel region on an imaging surface of the optical imaging lens satisfy: 1.3 < (DT61+ DT62)/ImgH < 1.7.

10. The optical imaging lens according to claim 1, wherein a combined focal length f12 of the first lens and the second lens, a center thickness CT1 of the first lens on the optical axis, and a center thickness CT2 of the second lens on the optical axis satisfy: 5.2 < f12/(CT1+ CT2) < 7.0.

11. The optical imaging lens of claim 1, wherein a center thickness CT5 of the fifth lens on the optical axis and an edge thickness ET5 of the fifth lens satisfy: 2.0 < CT5/ET5 < 5.4.

12. The optical imaging lens of claim 1, wherein a distance SAG41 on the optical axis from an intersection point of an object-side surface of the fourth lens and the optical axis to an effective radius vertex of an object-side surface of the fourth lens, a distance SAG42 on the optical axis from an intersection point of an image-side surface of the fourth lens and the optical axis to an effective radius vertex of an image-side surface of the fourth lens, and a distance SAG62 on the optical axis from an intersection point of an image-side surface of the sixth lens and the optical axis to an effective radius vertex of an image-side surface of the sixth lens satisfy: 0.7 < (SAG41+ SAG42)/SAG62 < 1.2.

13. The optical imaging lens of claim 1, wherein the effective half aperture DT22 of the image side surface of the second lens and the half ImgH of the diagonal length of the effective pixel area on the imaging surface of the optical imaging lens satisfy: 1.5 < DT22/ImgH × 10 < 2.2.

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

a first lens having a positive optical power;

a second lens having an optical power;

a third lens having optical power;

a fourth lens having a negative optical power;

the fifth lens with positive focal power has a convex object-side surface and a convex image-side surface; and

a sixth lens having a negative optical power;

the effective half aperture DT22 of the image side surface of the second lens and the half of the diagonal length ImgH of the effective pixel area on the imaging surface of the optical imaging lens satisfy that: 1.5 < DT22/ImgH × 10 < 2.2.

15. The optical imaging lens of claim 14, wherein the distance SAG41 on the optical axis from the intersection point of the object-side surface of the fourth lens and the optical axis to the effective radius vertex of the object-side surface of the fourth lens, the distance SAG42 on the optical axis from the intersection point of the image-side surface of the fourth lens and the optical axis to the effective radius vertex of the image-side surface of the fourth lens, and the distance SAG62 on the optical axis from the intersection point of the image-side surface of the sixth lens and the optical axis to the effective radius vertex of the image-side surface of the sixth lens satisfy: 0.7 < (SAG41+ SAG42)/SAG62 < 1.2.

16. The optical imaging lens of claim 14, wherein a distance TTL between an object side surface of the first lens element and an imaging surface of the optical imaging lens on the optical axis and a half ImgH of a diagonal length of an effective pixel area on the imaging surface of the optical imaging lens satisfy: TTL/ImgH is less than 1.3.

17. The optical imaging lens of claim 14, wherein the effective focal length f1 of the first lens and the effective focal length f5 of the fifth lens satisfy: 1.1 < f1/f5 < 1.6.

18. The optical imaging lens of claim 14, wherein the effective focal length f2 of the second lens, the effective focal length f4 of the fourth lens, and the effective focal length f6 of the sixth lens satisfy: 0.1 < f2/(f4+ f6) < 1.3.

19. The optical imaging lens of claim 14, wherein the radius of curvature R1 of the object-side surface of the first lens, the radius of curvature R2 of the image-side surface of the first lens, 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: 0.3 < (R1+ R2)/(R3+ R4) < 1.3.

20. The optical imaging lens of claim 14, wherein the radius of curvature R11 of the object-side surface of the sixth lens and the radius of curvature R12 of the image-side surface of the sixth lens satisfy: 0.5 < (R11-R12)/(R11+ R12) < 1.0.

21. The optical imaging lens according to claim 14, wherein a center thickness CT5 of the fifth lens on the optical axis, a separation distance T56 of the fifth lens and the sixth lens on the optical axis, and a center thickness CT6 of the sixth lens on the optical axis satisfy: 0.7 < CT5/(T56+ CT6) < 1.3.

22. The optical imaging lens of claim 14, wherein the effective half aperture DT32 of the image side surface of the third lens and the effective half aperture DT22 of the image side surface of the second lens satisfy: 1.1 < DT32/DT22 < 1.4.

23. The optical imaging lens according to claim 14, wherein the effective half aperture DT61 of the object side surface of the sixth lens, the effective half aperture DT62 of the image side surface of the sixth lens, and half ImgH of the diagonal length of the effective pixel region on the imaging surface of the optical imaging lens satisfy: 1.3 < (DT61+ DT62)/ImgH < 1.7.

24. The optical imaging lens of claim 14, wherein a combined focal length f12 of the first lens and the second lens, a center thickness CT1 of the first lens on the optical axis, and a center thickness CT2 of the second lens on the optical axis satisfy: 5.2 < f12/(CT1+ CT2) < 7.0.

25. The optical imaging lens of claim 14, wherein a center thickness CT5 of the fifth lens on the optical axis and an edge thickness ET5 of the fifth lens satisfy: 2.0 < CT5/ET5 < 5.4.

26. The optical imaging lens of claim 25, wherein the effective semi-aperture DT22 of the image side surface of the second lens element and the distance TTL between the object side surface of the first lens element and the image plane of the optical imaging lens on the optical axis satisfy: DT22/TTL 10 is less than or equal to 1.75.

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