CN214067482U - Optical imaging lens - Google Patents

Abstract

The application discloses optical imaging lens includes following preface from object side to image side along optical axis: a first lens having an optical power; a second lens with focal power, wherein the object side surface of the second lens is a convex surface, and the image side surface of the second lens is a convex surface; a third lens having optical power; a fourth lens having an optical power; a fifth lens having optical power; and a sixth lens having optical power. Half of the Semi-FOV of the maximum field angle of the optical imaging lens satisfies: 45 < Semi-FOV < 60. The f-number Fno of the optical imaging lens meets the following requirements: fno < 1.8. The distance TTL from the object side surface of the first lens to the imaging surface of the optical imaging lens along the optical axis and the half of the diagonal length ImgH of the effective pixel area on the imaging surface satisfy that: TTL/ImgH is less than 1.4. An on-axis distance SAG31 from an intersection point of an object-side surface of the third lens and the optical axis to an effective radius vertex of the object-side surface of the third lens and an on-axis distance SAG32 from an intersection point of an image-side surface of the third lens and the optical axis to an effective radius vertex of the image-side surface of the third lens satisfy: i SAG31/SAG32| < 1.8.

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

With the continuous development of portable electronic products such as smart phones, portable electronic devices with high imaging quality are becoming more and more popular. On the one hand, due to the miniaturization trend of portable electronic devices, increasingly higher demands are placed on the miniaturization of imaging lenses used in cooperation therewith. The total length of the imaging lens is limited, resulting in an increase in the difficulty of designing the imaging lens. On the other hand, with the performance improvement and the reduction of the pixel size of a photosensitive coupled device (CCD) or a Complementary Metal Oxide Semiconductor (CMOS), higher requirements are also put forward for a matched imaging lens.

Therefore, in order to further meet market demands and the trend of ultra-thinning of portable electronic products, it is desirable to provide an optical imaging lens having characteristics of miniaturization, large aperture, high imaging quality, and the like, which is applicable to portable electronic products.

SUMMERY OF THE UTILITY MODEL

The present application provides an optical imaging lens, sequentially comprising, from an object side to an image side along an optical axis: a first lens having an optical power; a second lens with focal power, wherein the object side surface of the second lens is a convex surface, and the image side surface of the second lens is a convex surface; a third lens having optical power; a fourth lens having an optical power; a fifth lens having optical power; and a sixth lens having optical power. Half of the Semi-FOV of the maximum field angle of the optical imaging lens may satisfy: 45 < Semi-FOV < 60. The f-number Fno of the optical imaging lens can satisfy the following conditions: fno < 1.8. The distance TTL from the object side surface of the first lens to the imaging surface of the optical imaging lens along the optical axis and the half ImgH of the diagonal length of the effective pixel area on the imaging surface can satisfy the following conditions: TTL/ImgH is less than 1.4. An on-axis distance SAG31 from an intersection point of an object-side surface of the third lens and the optical axis to an effective radius vertex of the object-side surface of the third lens and an on-axis distance SAG32 from an intersection point of an image-side surface of the third lens and the optical axis to an effective radius vertex of the image-side surface of the third lens may satisfy: i SAG31/SAG32| < 1.8.

In one embodiment, the effective focal length f2 of the second lens and the effective focal length f of the optical imaging lens satisfy: f2/f is more than 0.6 and less than 1.2.

In one embodiment, the effective focal length f3 of the third lens and the effective focal length f of the optical imaging lens satisfy: -3.2 < f3/f < -1.6.

In one embodiment, the effective focal length f5 of the fifth lens and the effective focal length f6 of the sixth lens satisfy: -1.5 < f5/f6 < -0.5.

In one embodiment, 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: -2.0 < R3/R4 < -0.5.

In one embodiment, the radius of curvature R6 of the image-side surface of the third lens and the effective focal length f of the optical imaging lens satisfy: r6/f is more than 0.4 and less than 1.4.

In one embodiment, the radius of curvature R7 of the object-side surface of the fourth lens and the radius of curvature R8 of the image-side surface of the fourth lens may satisfy: 3.0 < (R7+ R8)/(R7-R8) < 9.0.

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: 2.0 < R11/R12 < 6.0.

In one embodiment, the central thickness CT1 of the first lens on the optical axis, the central thickness CT3 of the third lens on the optical axis, and the central thickness CT2 of the second lens on the optical axis may satisfy: 0.6 < (CT1+ CT3)/CT2 < 1.2.

In one embodiment, the central thickness CT6 of the sixth lens on the optical axis, the on-axis distance SAG62 from the intersection 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 to the on-axis distance SAG61 from the intersection of the object-side surface of the sixth lens and the optical axis to the effective radius vertex of the object-side surface of the sixth lens may satisfy: 0.2 < CT6/(SAG62-SAG61) < 1.2.

In one embodiment, the effective half aperture DT12 of the image-side surface of the first lens and the effective half aperture DT22 of the image-side surface of the second lens satisfy: 0.6 < DT12/DT22 < 1.4.

In one embodiment, the edge thickness ET2 of the second lens and the edge thickness ET1 of the first lens may satisfy: ET2/(ET1+ ET2) < 0.6.

The six-piece type lens framework is adopted, and the optical imaging lens can have at least one beneficial effect of miniaturization, large aperture, high imaging quality and the like through distribution of reasonable focal power and optimization selection of surface type and thickness.

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; and

fig. 12A to 12D 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 6.

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. In this document, the surface of each lens closest to the subject is referred to as the object-side surface of the lens, and the surface of each lens closest to the image plane is referred to as 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.

In an exemplary embodiment, each of the first to sixth lenses may have a positive power or a negative power.

In an exemplary embodiment, the object-side surface of the second lens may be convex and the image-side surface may be convex.

In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 45 ° < Semi-FOV < 60 °, wherein Semi-FOV is half of the maximum field angle of the optical imaging lens. By reasonably restricting the field angle of the system, half of the Semi-FOV of the maximum field angle of the optical imaging lens is ensured to meet the conditions that the Semi-FOV is more than 45 degrees and less than 60 degrees, and the large shooting field of view and the good field depth effect can be realized. More specifically, the Semi-FOV may satisfy 45 ° < Semi-FOV < 50 °.

In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression Fno < 1.8, where Fno is an f-number of the optical imaging lens. The diaphragm number of the optical imaging lens is controlled to meet the requirement that Fno is less than 1.8, so that the luminous flux of the system can be increased, and the imaging effect in a dark environment is enhanced. More specifically, Fno may satisfy Fno < 1.7.

In an exemplary embodiment, the optical imaging lens of the present application may satisfy a conditional expression TTL/ImgH < 1.4, where TTL is a distance along an optical axis from an object side surface of the first lens to an imaging surface of the optical imaging lens, and ImgH is a half of a diagonal length of an effective pixel area on the imaging surface. The ratio of the total optical length to the image height of the optical imaging lens is constrained to meet the TTL/ImgH smaller than 1.4, so that the system is compact, the requirement of miniaturization is met, and the system has the characteristics of high pixel, large aperture, ultrathin property and the like. More specifically, TTL and ImgH can satisfy 1.3 < TTL/ImgH < 1.4.

In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 0.6 < f2/f < 1.2, where f2 is an effective focal length of the second lens, and f is an effective focal length of the optical imaging lens. By reasonably restricting the ratio of f2 to f, the second lens can effectively compensate the residual spherical aberration generated by the rear lens, so that the axial aberration is small, and good imaging quality is obtained. More specifically, f2 and f can satisfy 0.8 < f2/f < 1.1.

In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression-3.2 < f3/f < -1.6, where f3 is an effective focal length of the third lens, and f is an effective focal length of the optical imaging lens. By restricting the ratio of the effective focal length of the third lens to the effective focal length of the optical imaging lens to be in this range, the third lens can be made to have reasonable positive astigmatism. The positive astigmatism generated by the third lens can be mutually offset with the negative astigmatism generated by the front system, so that the imaging lens obtains good imaging quality.

In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression-1.5 < f5/f6 < -0.5, where f5 is an effective focal length of the fifth lens and f6 is an effective focal length of the sixth lens. By restricting the ratio of the effective focal lengths of the fifth lens and the sixth lens within the range, the spherical aberration generated by the front four lenses can be balanced by utilizing the residual spherical aberration of the fifth lens and the sixth lens, so that the spherical aberration of the system is finely adjusted, and the aberration of the on-axis field of view is reduced. More specifically, f5 and f6 may satisfy-1.2 < f5/f6 < -0.7.

In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression-2.0 < R3/R4 < -0.5, where 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. By reasonably distributing the ratio of the curvature radius of the object side surface and the curvature radius of the image side surface of the second lens in the range, the deflection angle of light rays at the second lens can be reduced, and the system can better realize deflection of a light path. More specifically, R3 and R4 may satisfy-1.9 < R3/R4 < -0.6.

In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 0.4 < R6/f < 1.4, where R6 is a radius of curvature of an image-side surface of the third lens, and f is an effective focal length of the optical imaging lens. By restricting the ratio of the curvature radius of the image side surface of the third lens to the effective focal length of the optical imaging lens in the range, the contribution of the third lens to the fifth-order spherical aberration of the system can be well controlled, and further the third-order spherical aberration generated by the lens is compensated, so that the system has good imaging quality on the axis.

In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 3.0 < (R7+ R8)/(R7-R8) < 9.0, where R7 is a radius of curvature of an object-side surface of the fourth lens and R8 is a radius of curvature of an image-side surface of the fourth lens. By reasonably restricting the ratio of the curvature radii of the object side surface and the image side surface of the fourth lens in the range, the refraction angle of the system light beam on the fourth lens can be effectively controlled, and the good processing characteristics of the system are realized. More specifically, R7 and R8 may satisfy 3 < (R7+ R8)/(R7-R8) < 8.5.

In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 2.0 < R11/R12 < 6.0, where 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. By controlling the ratio of the curvature radius of the object side surface and the curvature radius of the image side surface of the sixth lens in the range, the deflection angle of marginal rays of the system at the sixth lens can be reasonably controlled, and the sensitivity of the system can be effectively reduced. More specifically, R11 and R12 may satisfy 2 < R11/R12 < 5.7.

In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 0.6 < (CT1+ CT3)/CT2 < 1.2, where CT1 is a central thickness of the first lens on the optical axis, CT3 is a central thickness of the third lens on the optical axis, and CT2 is a central thickness of the second lens on the optical axis. By controlling the ratio of the sum of the central thicknesses of the first lens and the third lens to the central thickness of the second lens in the range, the distortion of each field of view of the system can be controlled to be at a reasonable level so as to improve the imaging quality.

In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 0.2 < CT6/(SAG62-SAG61) < 1.2, where CT6 is a central thickness of the sixth lens on the optical axis, SAG62 is an on-axis distance from an intersection point of an image-side surface of the sixth lens and the optical axis to an effective radius vertex of the image-side surface of the sixth lens, and SAG61 is an on-axis distance from an intersection point of an object-side surface of the sixth lens and the optical axis to an effective radius vertex of the object-side surface of the sixth lens. By restricting the ratio of the central thickness of the sixth lens and the rise difference between the image side surface and the object side surface of the sixth lens within the range, the incident angle of the chief ray incident on the object side surface of the sixth lens can be effectively reduced, and the matching degree of the lens and the chip can be improved.

In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 0.6 < DT12/DT22 < 1.4, where DT12 is an effective half aperture of an image side surface of the first lens and DT22 is an effective half aperture of an image side surface of the second lens. By reasonably controlling the ratio of the effective half calibers of the image side surfaces of the first lens and the second lens within the range, on one hand, the front end size of the lens can be favorably reduced, so that the whole optical imaging lens is thinner; on the other hand, the range of incident light rays can be reasonably limited, light rays with poor edge quality are eliminated, off-axis aberration is reduced, and the resolution of the optical imaging lens is effectively improved. More specifically, DT12 and DT22 may satisfy 0.7 < DT12/DT22 < 1.3.

In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression ET2/(ET1+ ET2) < 0.6, where ET2 is the edge thickness of the second lens and ET1 is the edge thickness of the first lens. By restricting the ratio of the edge thickness of the second lens to the sum of the edge thicknesses of the first lens and the second lens within the range, on one hand, the range of edge rays can be reasonably limited, and off-axis aberration can be reduced; on the other hand, it is advantageous to ensure the processing, molding, and assembling of the first lens and the second lens. More specifically, ET2 and ET1 may satisfy 0.15 < ET2/(ET1+ ET2) < 0.55.

In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression | SAG31/SAG32| < 1.8, where SAG31 is an on-axis distance from an intersection of an object-side surface of the third lens and the optical axis to an effective radius vertex of the object-side surface of the third lens, and SAG32 is an on-axis distance from an intersection of an image-side surface of the third lens and the optical axis to an effective radius vertex of the image-side surface of the third lens. By reasonably controlling the ratio of the object-side rise to the image-side rise of the third lens to be in this range, it is possible to advantageously ensure the processing, molding, and assembly of the third lens so as to obtain good imaging quality. An unreasonable ratio may cause difficulty in adjusting the molding surface shape, and the molding surface shape is easily deformed obviously after being assembled, so that the imaging quality cannot be ensured. More specifically, SAG31 and SAG32 can satisfy 0.15 < | SAG31/SAG32| < 1.7.

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. Through the reasonable distribution of the focal power and the surface type of each lens, the central thickness of each lens, the on-axis distance between each lens and the like, the optical imaging lens can effectively ensure the characteristics of miniaturization, large aperture, high imaging quality and the like, and can be better suitable for portable electronic products.

In the embodiment of the present application, at least one of the mirror surfaces of each lens is an aspherical mirror, 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. 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 lens center to the lens periphery, an aspherical lens has a better curvature radius characteristic, and has an advantage of improving distortion aberration, that is, 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, 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 negative power, and has a convex object-side surface S1 and a concave image-side surface S2. The second lens element E2 has positive power, and has a convex object-side surface S3 and a convex image-side surface S4. The third lens element E3 has negative power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has negative power, and has a 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 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 basic parameters of the optical imaging lens of embodiment 1, in which the unit of the radius of curvature and the thickness/distance are both millimeters (mm).

TABLE 1

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 and Table 3 below show the coefficients A of the high-order terms that can be used for the aspherical mirror surfaces S1 to S12 in example 1₄、A₆、A₈、A₁₀、A₁₂、A₁₄、A₁₆、A₁₈、A₂₀、A₂₂、A₂₄、A₂₆、A₂₈And A₃₀。

TABLE 2

Flour mark

A18

A20

A22

A24

A26

A28

A30

S1

9.25E-06

8.86E-06

-2.08E-07

-3.32E-06

-8.60E-06

-3.17E-07

0.00E+00

S2

-2.36E-05

2.47E-05

-8.41E-06

7.99E-06

-8.77E-06

7.89E-06

-2.51E-06

S3

-1.01E-05

4.63E-06

-7.01E-07

2.15E-06

-3.32E-06

4.12E-06

-1.71E-06

S4

5.62E-05

-3.59E-05

8.42E-06

-7.67E-06

6.17E-06

9.55E-07

2.61E-06

S5

1.18E-04

-4.94E-05

2.14E-05

-1.63E-05

3.46E-06

-4.67E-06

3.70E-06

S6

4.26E-05

-4.33E-06

1.07E-06

-1.86E-06

-3.53E-06

-3.14E-06

-2.85E-06

S7

-8.38E-05

3.62E-06

7.07E-06

3.90E-06

6.21E-06

1.70E-06

1.54E-06

S8

-2.55E-04

-7.65E-05

-7.18E-05

-1.75E-05

-1.87E-05

-4.18E-06

-1.10E-05

S9

-6.32E-04

-3.57E-04

-1.56E-04

-1.28E-05

3.29E-05

4.09E-05

2.06E-05

S10

-1.89E-03

-3.44E-04

3.99E-04

1.80E-04

-4.65E-05

-4.53E-05

2.45E-05

S11

-3.89E-04

3.57E-04

-2.25E-04

3.08E-04

-1.83E-04

3.94E-06

2.77E-05

S12

6.88E-03

-3.62E-03

1.27E-03

-8.67E-04

2.84E-04

-1.20E-04

1.72E-04

TABLE 3

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 angles of view. 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 negative power, and has a convex object-side surface S1 and a concave image-side surface S2. The second lens element E2 has positive power, and has a convex object-side surface S3 and a convex image-side surface S4. The third lens element E3 has negative power, and has a concave object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has negative power, and has a 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 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 4 shows basic parameters of the optical imaging lens of embodiment 2, in which the unit of the radius of curvature and the thickness/distance are both millimeters (mm). Tables 5 and 6 show the 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 4

Flour mark

A4

A6

A8

A10

A12

A14

A16

S1

-1.14E-01

1.34E-03

-5.48E-05

-9.77E-05

-2.47E-04

1.89E-05

-9.54E-05

S2

-1.05E-01

1.02E-02

1.11E-03

-3.67E-04

-8.31E-05

5.51E-05

-5.47E-05

S3

-4.37E-02

6.84E-03

3.07E-04

-5.20E-04

3.29E-05

2.27E-05

-7.99E-05

S4

-3.40E-02

-6.42E-03

4.76E-03

-2.47E-03

1.46E-03

-7.74E-04

3.58E-04

S5

-1.39E-01

1.79E-02

6.13E-03

-5.16E-03

1.71E-03

-1.18E-03

5.43E-04

S6

-1.72E-01

1.93E-02

-1.20E-03

-4.95E-03

1.18E-04

-4.92E-04

2.24E-04

S7

-2.17E-01

1.39E-02

3.67E-03

4.01E-03

-5.88E-04

-6.11E-05

-1.81E-04

S8

-4.80E-01

2.95E-02

1.07E-03

6.73E-03

1.94E-04

3.03E-04

-1.23E-04

S9

-2.15E-01

-1.07E-01

-1.69E-02

-9.41E-03

-2.68E-03

6.38E-04

3.33E-03

S10

8.30E-01

-1.75E-01

8.55E-02

3.68E-03

5.09E-03

-3.63E-03

2.59E-03

S11

-1.52E+00

2.31E-01

-1.91E-02

2.26E-02

1.01E-03

-3.29E-03

9.66E-05

S12

-6.40E+00

1.35E+00

-5.05E-01

1.87E-01

-9.37E-02

3.98E-02

-2.22E-02

TABLE 5

Flour mark

A18

A20

A22

A24

A26

A28

A30

S1

-8.13E-07

-6.57E-05

-2.11E-05

-4.10E-05

-1.00E-05

-2.17E-05

-1.39E-06

S2

1.97E-05

-1.08E-05

7.84E-06

-5.48E-06

3.57E-06

-6.41E-07

-3.44E-07

S3

2.77E-05

-7.85E-06

7.52E-06

-6.89E-06

-2.83E-07

-8.99E-07

1.95E-06

S4

-2.04E-04

1.06E-04

-5.44E-05

2.78E-05

-1.48E-05

5.40E-06

-7.90E-07

S5

-2.17E-04

1.51E-04

-8.00E-05

4.47E-05

-2.44E-05

8.21E-06

-5.35E-06

S6

-6.27E-05

-5.55E-05

-6.29E-05

-2.06E-05

-1.19E-05

-7.81E-07

2.32E-06

S7

2.13E-05

-1.34E-05

2.59E-05

-7.83E-06

8.47E-06

-7.10E-06

1.47E-06

S8

-1.42E-05

-3.47E-05

1.45E-05

-3.45E-06

7.56E-06

-1.51E-06

-1.95E-06

S9

3.38E-03

2.62E-03

1.73E-03

1.00E-03

4.97E-04

1.94E-04

5.30E-05

S10

-6.83E-04

-3.57E-04

-4.64E-04

-5.73E-05

-9.87E-05

3.74E-05

1.27E-05

S11

-9.79E-04

-6.75E-05

-2.38E-04

2.94E-04

-7.85E-06

-7.20E-05

-5.85E-06

S12

9.16E-03

-4.87E-03

2.64E-03

-1.53E-03

5.02E-04

-2.97E-04

-1.18E-04

TABLE 6

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 angles of view. 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 negative power, and has a convex object-side surface S1 and a concave image-side surface S2. The second lens element E2 has positive power, and has a convex object-side surface S3 and a convex image-side surface S4. The third lens element E3 has negative power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has negative power, and has a convex object-side surface S7 and a concave image-side surface S8. The fifth lens element E5 has positive power, and has a concave object-side surface S9 and a convex image-side surface S10. 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 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 7 shows basic parameters of the optical imaging lens of embodiment 3, in which the unit of the radius of curvature and the thickness/distance are both millimeters (mm). Tables 8 and 9 show high-order term coefficients that can be used for each aspherical mirror surface in embodiment 3, wherein each aspherical mirror surface type can be defined by the formula (1) given in embodiment 1 above.

TABLE 7

TABLE 8

Flour mark

A18

A20

A22

A24

A26

A28

A30

S1

-1.04E-05

-1.34E-05

-2.25E-05

-1.94E-05

-1.79E-05

-3.83E-06

0.00E+00

S2

-2.57E-05

2.51E-05

-5.47E-06

9.96E-06

-7.19E-06

7.36E-06

-3.29E-06

S3

4.93E-07

1.56E-05

1.68E-06

5.00E-08

-5.47E-06

2.11E-06

-4.47E-06

S4

1.32E-04

-4.64E-05

4.06E-05

6.16E-06

1.58E-05

2.61E-06

-1.98E-06

S5

1.49E-04

-9.09E-05

3.34E-05

-1.46E-05

1.13E-05

1.34E-06

1.53E-06

S6

-5.43E-05

-1.46E-05

2.28E-05

3.11E-05

1.84E-05

1.01E-05

-8.42E-08

S7

3.29E-05

7.88E-05

2.75E-05

-1.75E-05

-1.02E-05

-6.26E-06

6.35E-06

S8

-2.89E-04

1.39E-04

1.01E-04

8.30E-05

7.87E-06

-8.86E-06

-2.37E-05

S9

2.08E-03

7.67E-04

9.70E-06

2.35E-04

3.03E-04

1.95E-04

3.88E-05

S10

3.81E-04

-2.95E-04

-1.71E-04

1.74E-04

1.88E-04

-1.01E-06

-5.06E-05

S11

1.44E-03

-1.26E-04

-2.24E-04

1.34E-04

-6.26E-05

7.20E-05

-2.34E-05

S12

8.38E-03

-4.99E-03

2.16E-03

-1.16E-03

5.33E-04

-1.89E-04

1.63E-04

TABLE 9

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 angles of view. 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.

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 positive power, and has a convex object-side surface S3 and a convex image-side surface S4. The third lens element E3 has negative power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has negative power, and has a convex object-side surface S7 and a concave image-side surface S8. The fifth lens element E5 has positive power, and has a concave object-side surface S9 and a convex image-side surface S10. 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 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 10 shows basic parameters of the optical imaging lens of embodiment 4, in which the unit of the radius of curvature and the thickness/distance are both millimeters (mm). Tables 11 and 12 show the 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 the formula (1) given in example 1 above.

Watch 10

Flour mark

A4

A6

A8

A10

A12

A14

A16

S1

-9.56E-02

-5.70E-03

-4.03E-04

-2.64E-05

-1.61E-05

6.04E-06

4.49E-06

S2

-9.55E-02

-3.53E-04

3.65E-04

-4.13E-04

-8.02E-05

2.57E-05

5.94E-05

S3

-1.80E-02

3.81E-03

7.98E-04

-2.29E-04

-1.35E-04

-1.75E-05

5.71E-06

S4

-7.42E-02

6.57E-03

-2.83E-03

4.64E-04

-7.84E-04

2.98E-04

-1.08E-04

S5

-1.26E-01

6.33E-03

-5.36E-03

1.68E-03

-1.84E-04

6.81E-04

-3.25E-04

S6

-1.63E-01

-2.83E-03

-6.74E-03

-9.17E-04

-1.02E-03

-1.14E-04

-2.48E-04

S7

-2.14E-01

2.50E-02

-2.61E-04

3.40E-03

-2.35E-04

-3.97E-04

-3.52E-04

S8

-4.47E-01

1.71E-02

3.04E-03

1.21E-02

4.39E-03

8.83E-04

-1.81E-04

S9

-1.93E-01

-2.85E-02

1.44E-02

6.60E-03

-2.89E-04

-2.85E-03

3.57E-04

S10

3.71E-01

5.57E-02

-1.12E-02

-1.22E-02

1.10E-03

1.63E-03

-1.61E-04

S11

-2.40E+00

6.87E-01

-1.74E-01

4.14E-02

-1.08E-02

4.61E-03

-3.78E-03

S12

-5.74E+00

1.09E+00

-3.68E-01

1.41E-01

-5.75E-02

2.94E-02

-1.20E-02

TABLE 11

TABLE 12

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 angles of view. 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.

The first lens element E1 has positive power, and has a convex object-side surface S1 and a convex image-side surface S2. The second lens element E2 has positive power, and has a convex object-side surface S3 and a convex image-side surface S4. The third lens element E3 has negative power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has negative power, and has a 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 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 13 shows basic parameters of the optical imaging lens of embodiment 5, in which the unit of the radius of curvature and the thickness/distance are both millimeters (mm). Tables 14 and 15 show the 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 the formula (1) given in example 1 above.

Watch 13

TABLE 14

Flour mark

A18

A20

A22

A24

A26

A28

A30

S1

-1.89E-04

-1.05E-04

-4.59E-05

-1.29E-05

-2.79E-06

5.64E-07

0.00E+00

S2

-2.31E-04

5.14E-05

1.93E-04

1.60E-04

9.37E-05

3.35E-05

1.01E-05

S3

9.76E-07

5.52E-07

2.64E-06

2.20E-07

-2.90E-06

1.70E-06

-3.02E-07

S4

3.33E-05

-1.26E-05

8.08E-06

4.51E-07

-2.62E-06

2.29E-06

-1.47E-06

S5

4.65E-05

-1.99E-05

9.28E-06

-2.11E-06

-1.00E-07

5.84E-08

-2.45E-08

S6

1.85E-05

-4.58E-06

1.61E-06

2.50E-07

-5.46E-07

-1.33E-07

6.30E-08

S7

-5.85E-06

1.54E-05

-1.11E-05

2.24E-06

-1.88E-06

7.66E-08

2.92E-07

S8

7.38E-05

1.23E-04

9.51E-06

2.61E-05

-2.65E-06

5.42E-06

-2.53E-06

S9

-3.68E-04

-9.18E-05

-1.26E-04

-6.73E-06

-2.44E-05

8.23E-06

-2.01E-06

S10

-1.06E-03

1.98E-04

2.47E-04

5.09E-05

-7.25E-05

-1.17E-05

8.92E-06

S11

2.58E-03

6.38E-04

-8.07E-05

1.56E-03

1.32E-03

7.47E-04

3.16E-04

S12

2.52E-03

-5.54E-03

-1.95E-03

-1.81E-03

-1.08E-03

-4.68E-04

-3.01E-04

Watch 15

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 angles of view. Fig. 10D shows a chromatic aberration of magnification curve of the optical imaging lens of embodiment 5, which represents a deviation of different image heights on the imaging surface after light passes through the lens. As can be seen from fig. 10A to 10D, the optical imaging lens according to embodiment 5 can achieve good imaging quality.

Example 6

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

As shown in fig. 11, the optical imaging lens, in order from an object side to an image side along an optical axis, comprises: a 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 concave object-side surface S1 and a convex image-side surface S2. The second lens element E2 has positive power, and has a convex object-side surface S3 and a convex image-side surface S4. The third lens element E3 has negative power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has negative power, and has a 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 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 16 shows basic parameters of the optical imaging lens of example 6, in which the unit of the radius of curvature and the thickness/distance are both millimeters (mm). Tables 17 and 18 show the 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 the formula (1) given in example 1 above.

TABLE 16

Flour mark

A4

A6

A8

A10

A12

A14

A16

S1

-1.05E-01

6.18E-03

-1.64E-03

-1.11E-03

-5.85E-04

-4.24E-04

-2.89E-04

S2

-7.34E-02

3.00E-02

-6.30E-03

4.75E-04

-8.56E-04

-7.57E-04

-6.57E-04

S3

-1.06E-02

6.67E-03

-2.68E-03

7.17E-04

-9.81E-05

1.65E-05

-4.92E-06

S4

-1.42E-02

2.46E-04

8.55E-04

4.26E-04

-1.35E-04

1.55E-04

-7.55E-05

S5

-1.52E-01

1.85E-02

-1.62E-03

7.23E-04

-3.54E-04

1.57E-04

-8.71E-05

S6

-2.25E-01

1.89E-02

-4.10E-03

8.82E-04

-3.41E-04

9.83E-05

-4.18E-05

S7

-1.98E-01

2.85E-02

-6.30E-03

1.44E-03

2.03E-04

2.18E-04

9.60E-05

S8

-4.85E-01

9.17E-03

-8.70E-03

7.37E-04

1.79E-04

2.75E-04

3.98E-04

S9

-3.05E-01

-5.67E-02

-7.52E-03

-7.30E-03

-1.20E-03

-6.03E-04

2.95E-04

S10

6.69E-01

-2.14E-02

1.18E-02

-1.17E-02

1.85E-03

-5.31E-04

2.54E-04

S11

-2.71E+00

6.84E-01

-7.02E-02

-3.35E-03

-2.79E-02

3.19E-03

1.02E-02

S12

-6.05E+00

1.01E+00

-4.22E-01

1.34E-01

-7.09E-02

2.12E-02

-1.35E-02

TABLE 17

Watch 18

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 angles of view. 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.

Further, in embodiments 1 to 6, an on-axis distance TTL from the object-side surface of the first lens of the optical imaging lens to the imaging surface of the optical imaging lens, a half ImgH of the diagonal length of the effective pixel area on the imaging surface of the optical imaging lens, a half Semi-FOV of the maximum angle of view of the optical imaging lens, an f-number Fno of the optical imaging lens, an effective focal length f of the optical imaging lens, and focal length values f1 to f6 of the respective lenses are as shown in table 19.

Parameters/embodiments	1	2	3	4	5	6
							TTL(mm)	4.62	4.71	4.69	4.70	4.70	4.70
ImgH(mm)	3.38	3.38	3.38	3.38	3.38	3.38
							Semi-FOV(°)	45.9	46.9	45.9	46.3	45.8	45.5
Fno	1.67	1.67	1.69	1.67	1.67	1.67
							f(mm)	3.18	3.12	3.18	3.13	3.11	3.08
f1(mm)	-89.63	-379.58	-71.54	7273.60	44.34	47.28
							f2(mm)	2.93	2.65	3.36	3.32	2.94	2.93
f3(mm)	-7.33	-5.74	-9.96	-7.49	-5.09	-5.08
							f4(mm)	-14.32	-19.31	-16.41	-23.82	-11.17	-11.16
f5(mm)	2.22	2.09	2.56	2.75	2.27	2.26
							f6(mm)	-2.47	-1.81	-3.23	-3.60	-2.61	-2.66

Watch 19

The conditional expressions in examples 1 to 6 satisfy the conditions shown in table 20, respectively.

Conditions/examples	1	2	3	4	5	6
							TTL/ImgH	1.37	1.39	1.39	1.39	1.39	1.39
f2/f	0.92	0.85	1.06	1.06	0.95	0.95
							f3/f	-2.31	-1.84	-3.13	-2.39	-1.64	-1.65
f5/f6	-0.90	-1.16	-0.79	-0.76	-0.87	-0.85
							R3/R4	-1.11	-1.80	-0.67	-1.15	-1.55	-1.50
R6/f	0.49	1.29	0.62	0.71	0.53	0.53
							(R7+R8)/(R7-R8)	4.13	4.73	5.64	8.33	3.08	3.20
R11/R12	3.28	5.65	2.13	2.05	3.01	2.97
							(CT1+CT3)/CT2	0.74	0.62	0.87	1.02	1.01	1.11
CT6/(SAG62-SAG61)	1.03	0.26	1.00	1.03	0.55	0.48
							DT12/DT22	0.91	1.21	0.93	0.92	0.84	0.88
ET2/(ET1+ET2)	0.47	0.51	0.49	0.48	0.34	0.19
							|SAG31/SAG32|	0.45	1.62	0.35	0.25	0.19	0.20

Watch 20

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 (12)

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 an optical power;

a second lens with focal power, wherein the object side surface of the second lens is a convex surface, and the image side surface of the second lens is a convex surface;

a third lens having optical power;

a fourth lens having an optical power;

a fifth lens having optical power; and

a sixth lens having an optical power,

wherein, the optical imaging lens satisfies:

45°＜Semi-FOV＜60°；

Fno＜1.8；

TTL/ImgH is less than 1.4; and

|SAG31/SAG32|＜1.8，

wherein Semi-FOV is half of the maximum field angle of the optical imaging lens, Fno is the f-number of the optical imaging lens, TTL is the distance along the optical axis from the object-side surface of the first lens to the imaging surface of the optical imaging lens, ImgH is half of the diagonal length of the effective pixel area on the imaging surface, SAG31 is the on-axis distance from the intersection of the object-side surface and the optical axis of the third lens to the effective radius vertex of the object-side surface of the third lens, and SAG32 is the on-axis distance from the intersection of the image-side surface and the optical axis of the third lens to the effective radius vertex of the image-side surface of the third lens.

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

0.6＜f2/f＜1.2。

3. the optical imaging lens of claim 1, wherein the effective focal length f3 of the third lens and the effective focal length f of the optical imaging lens satisfy:

-3.2＜f3/f＜-1.6。

4. the optical imaging lens of claim 1, wherein the effective focal length f5 of the fifth lens and the effective focal length f6 of the sixth lens satisfy:

-1.5＜f5/f6＜-0.5。

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

-2.0＜R3/R4＜-0.5。

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

0.4＜R6/f＜1.4。

7. the optical imaging lens of claim 1, wherein the radius of curvature R7 of the object-side surface of the fourth lens and the radius of curvature R8 of the image-side surface of the fourth lens satisfy:

3.0＜(R7+R8)/(R7-R8)＜9.0。

8. the optical imaging lens according to any one of claims 1 to 7, wherein a radius of curvature R11 of an object-side surface of the sixth lens and a radius of curvature R12 of an image-side surface of the sixth lens satisfy:

2.0＜R11/R12＜6.0。

9. the optical imaging lens according to any one of claims 1 to 7, wherein a central thickness CT1 of the first lens on an optical axis, a central thickness CT3 of the third lens on the optical axis, and a central thickness CT2 of the second lens on the optical axis satisfy:

0.6＜(CT1+CT3)/CT2＜1.2。

10. the optical imaging lens according to any one of claims 1 to 7, wherein a central thickness CT6 of the sixth lens on an optical axis, an on-axis distance SAG62 from an intersection point of an image side surface and an optical axis of the sixth lens to an effective radius vertex of the image side surface of the sixth lens to an on-axis distance SAG61 from an intersection point of an object side surface and an optical axis of the sixth lens to an effective radius vertex of the object side surface of the sixth lens satisfy:

0.2＜CT6/(SAG62-SAG61)＜1.2。

11. the optical imaging lens according to any one of claims 1 to 7, wherein an effective semi-aperture diameter DT12 of the image side surface of the first lens and an effective semi-aperture diameter DT22 of the image side surface of the second lens satisfy:

0.6＜DT12/DT22＜1.4。

12. the optical imaging lens according to any one of claims 1 to 7, characterized in that the edge thickness ET2 of the second lens and the edge thickness ET1 of the first lens satisfy:

ET2/(ET1+ET2)＜0.6。

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