CN107462977B

CN107462977B - Optical imaging lens

Info

Publication number: CN107462977B
Application number: CN201710857503.4A
Authority: CN
Inventors: 吕赛锋; 李明
Original assignee: Zhejiang Sunny Optics Co Ltd
Current assignee: Zhejiang Sunny Optics Co Ltd
Priority date: 2017-09-21
Filing date: 2017-09-21
Publication date: 2022-09-06
Anticipated expiration: 2037-09-21
Also published as: CN107462977A

Abstract

The application discloses optical imaging lens includes following preface from object side to image side along optical axis: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens having optical power. The first lens has positive focal power; the image side surface of the second lens and the image side surface of the seventh lens are convex surfaces; the effective focal length f of the optical imaging lens and the entrance pupil diameter EPD of the optical imaging lens meet the condition that f/EPD is less than or equal to 1.90.

Description

Optical imaging lens

Technical Field

The present application relates to an optical imaging lens, and more particularly, to a large aperture optical imaging lens including seven lenses.

Background

In recent years, with the rapid update of portable electronic products such as mobile phones and tablet computers, the requirements of the market for product-side imaging lenses are increasingly diversified. At present, in addition to the requirements of the imaging lens on high pixel, high resolution, high relative brightness and the like, higher requirements are provided for the aspects of large aperture, wide view field angle and the like of the lens so as to meet the imaging requirements of various fields.

Disclosure of Invention

The present application provides an optical imaging lens, such as a large aperture imaging lens, that may be applicable to portable electronic products and that may address at least one of the above-mentioned shortcomings in the prior art.

In one aspect, 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, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens having optical power. The first lens may have a positive optical power; the image side surface of the second lens and the image side surface of the seventh lens can both be convex surfaces; the total effective focal length f of the optical imaging lens and the entrance pupil diameter EPD of the optical imaging lens can satisfy f/EPD is less than or equal to 1.90.

In one embodiment, the object side surface of the seventh lens can be concave, and the curvature radius R13 of the object side surface and the total effective focal length f of the optical imaging lens can satisfy the condition that f/R13 is less than or equal to-1.5.

In one embodiment, the radius of curvature R1 of the object-side surface of the first lens and the radius of curvature R2 of the image-side surface of the first lens can satisfy-120 ≦ (R1+ R2)/(R1-R2) ≦ 0.

In one embodiment, the radius of curvature R1 of the object-side surface of the first lens and the radius of curvature R6 of the image-side surface of the third lens can satisfy-11 ≦ (R1+ R6)/(R1-R6) ≦ -2.5.

In one embodiment, the radius of curvature R9 of the object-side surface of the fifth lens element and the radius of curvature R10 of the image-side surface of the fifth lens element can satisfy | R9+ R10|/| R9-R10| ≦ 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 can satisfy 1 ≦ R11+ R12|/| R11-R12| ≦ 2.5.

In one embodiment, the fifth lens may have a negative power, and an effective focal length f5 thereof and an effective focal length f1 of the first lens may satisfy-2 ≦ f5/f1 ≦ 0.

In one embodiment, the effective focal length f3 of the third lens and the effective focal length f6 of the sixth lens can satisfy-2 ≦ f3/f6 ≦ -1.

In one embodiment, the total effective focal length f of the optical imaging lens and the combined focal length f67 of the sixth lens and the seventh lens can satisfy f/f67 ≦ 0.7.

In one embodiment, a combined focal length f67 of the sixth lens and the seventh lens and a combined focal length f123 of the first lens, the second lens, and the third lens may satisfy 1 ≦ f67/f123 ≦ 5.

In one embodiment, a separation distance T34 of the third lens and the fourth lens on the optical axis and a separation distance T12 of the first lens and the second lens on the optical axis may satisfy 1.5 ≦ T34/T12 ≦ 4.

In one embodiment, a separation distance T67 of the sixth lens and the seventh lens on the optical axis and a separation distance T56 of the fifth lens and the sixth lens on the optical axis may satisfy 3 ≦ T67/T56 ≦ 7.

In one embodiment, the Abbe number V2 of the second lens and the Abbe number V3 of the third lens can satisfy | V2-V3| ≦ 50.

In another aspect, the present application further provides an optical imaging lens, in order from an object side to an image side along an optical axis, comprising: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens having optical power. Wherein the fourth lens may have a negative power; the image side surface of the second lens can be convex; the image side surfaces of the fifth lens and the sixth lens can be both concave surfaces; the total effective focal length f of the optical imaging lens and the entrance pupil diameter EPD of the optical imaging lens can satisfy f/EPD is less than or equal to 1.70.

In one embodiment, the total effective focal length f of the optical imaging lens and the entrance pupil diameter EPD of the optical imaging lens further satisfy f/EPD ≦ 1.70.

In one embodiment, the first lens may have a positive optical power.

In one embodiment, the radius of curvature R1 for the object side surface and the radius of curvature R2 for the image side surface of the first lens element can satisfy-120 ≦ (R1+ R2)/(R1-R2) ≦ 0.

In one embodiment, the fifth lens may have a negative power, and its effective focal length f5 and the effective focal length f1 of the first lens may satisfy-2 ≦ f5/f1 ≦ 0.

In one embodiment, the third lens may have a negative optical power and the sixth lens may have a positive optical power.

In one embodiment, the radius of curvature R9 of the object-side surface of the fifth lens element and the radius of curvature R10 of the image-side surface of the fifth lens element satisfy R9+ R10/| R9-R10| ≦ 3.

In one embodiment, the combined focal power of the sixth lens and the seventh lens is positive focal power, and the combined focal length f67 and the total effective focal length f of the optical imaging lens can satisfy f/f67 ≦ 0.7.

In one embodiment, the object side surface of the seventh lens can be concave, and the curvature radius R13 of the object side surface and the effective focal length f of the optical imaging lens can satisfy the condition that f/R13 is less than or equal to-3 and less than or equal to-1.5.

In another aspect, the present application further provides an optical imaging lens, in order from an object side to an image side along an optical axis, comprising: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens having optical power. Wherein the fourth lens may have a negative optical power; the image side surface of the second lens can be a convex surface; the object side surface of the fifth lens can be a concave surface; the image side surface of the sixth lens can be a concave surface; the total effective focal length f of the optical imaging lens and the entrance pupil diameter EPD of the optical imaging lens can satisfy f/EPD is less than or equal to 1.50.

In another aspect, the present application further provides an optical imaging lens, in order from an object side to an image side along an optical axis, comprising: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens having optical power. Wherein the first lens may have a positive optical power; the image side surface of the second lens can be a convex surface; the object side surface of the seventh lens is a concave surface, and the curvature radius R13 of the object side surface and the total effective focal length f of the optical imaging lens can meet f/R13 which is more than or equal to-3 and less than or equal to-1.5.

In another aspect, the present application further provides an optical imaging lens, in order from an object side to an image side along an optical axis, comprising: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens having optical power. Wherein the first lens may have a positive optical power; the image side surface of the second lens can be convex; the curvature radius R11 of the object side surface of the sixth lens and the curvature radius R12 of the image side surface of the sixth lens can satisfy 1 ≦ R11+ R12|/| R11-R12| ≦ 2.5.

In another aspect, the present application further provides an optical imaging lens, in order from an object side to an image side along an optical axis, comprising: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens having optical power. Wherein the first lens may have a positive optical power; the image side surface of the second lens can be convex; the total effective focal length f of the optical imaging lens and the combined focal length f67 of the sixth lens and the seventh lens can meet the condition that f/f67 is less than or equal to 0.7.

In another aspect, the present application further provides an optical imaging lens, in order from an object side to an image side along an optical axis, comprising: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens having optical power. Wherein the first lens may have a positive optical power; the image side surface of the second lens can be convex; the combined focal length f67 of the sixth lens and the seventh lens and the combined focal length f123 of the first lens, the second lens and the third lens can satisfy 1 ≦ f67/f123 ≦ 5.

The optical imaging system has the advantages that seven lenses are adopted, the focal power and the surface type of each lens, the on-axis distance between the lenses and the like are reasonably distributed, so that the optical imaging system has the advantage of large aperture, the illumination of an imaging surface is enhanced, and the imaging effect under the condition of insufficient light is improved. Meanwhile, the optical imaging lens with the configuration has at least one of the advantages of being ultrathin, small in size, large in aperture, low in sensitivity, good in processability, high in imaging quality and the like.

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 axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a chromatic aberration of magnification curve of the optical imaging lens of embodiment 5, respectively;

fig. 11 is a schematic structural view showing an optical imaging lens according to embodiment 6 of the present application;

fig. 12A to 12D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of the optical imaging lens of embodiment 6;

fig. 13 is a schematic structural view showing an optical imaging lens according to embodiment 7 of the present application;

fig. 14A to 14D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of an optical imaging lens of embodiment 7;

fig. 15 is a schematic structural view showing an optical imaging lens according to embodiment 8 of the present application;

fig. 16A to 16D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of an optical imaging lens of embodiment 8;

fig. 17 is a schematic structural view showing an optical imaging lens according to embodiment 9 of the present application;

fig. 18A to 18D show an on-axis chromatic aberration curve, an astigmatic curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of an optical imaging lens of embodiment 9;

fig. 19 is a schematic structural view showing an optical imaging lens according to embodiment 10 of the present application;

fig. 20A to 20D show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a chromatic aberration of magnification curve of the optical imaging lens of embodiment 10, respectively;

fig. 21 is a schematic structural view showing an optical imaging lens according to embodiment 11 of the present application;

fig. 22A to 22D show an on-axis chromatic aberration curve, an astigmatic curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of an optical imaging lens of embodiment 11;

fig. 23 is a schematic structural view showing an optical imaging lens according to embodiment 12 of the present application;

fig. 24A to 24D show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a chromatic aberration of magnification curve of an optical imaging lens of example 12, respectively;

fig. 25 is a schematic structural view showing an optical imaging lens according to embodiment 13 of the present application;

fig. 26A to 26D show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of an optical imaging lens of embodiment 13;

fig. 27 is a schematic structural view showing an optical imaging lens according to embodiment 14 of the present application;

fig. 28A to 28D 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 example 14;

fig. 29 is a schematic structural view showing an optical imaging lens according to embodiment 15 of the present application;

fig. 30A to 30D 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 15.

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 only used 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, and the surface of each lens closest to the imaging surface is called the image-side surface.

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 examples or illustrations.

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 includes, for example, seven lenses having optical powers, i.e., a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. The seven lenses are arranged in order from the object side to the image side along the optical axis.

The lens has the beneficial effects of ultrathin, large aperture, high imaging quality and the like through reasonable configuration of parameters such as focal power, surface type, on-axis distance between lenses and the like of each lens in the imaging lens.

An effective focal length f5 of the fifth lens and an effective focal length f1 of the first lens may satisfy-2. ltoreq. f5/f 1. ltoreq.0, more specifically, f5 and f1 may further satisfy-1.71. ltoreq. f5/f 1. ltoreq. f-0.14. The reasonable arrangement of the focal power of the first lens and the fifth lens can effectively reduce the aberration of the whole optical system and reduce the sensitivity of the optical system. In an exemplary embodiment, the first lens may have a positive optical power, and the fifth lens may have a negative optical power.

An effective focal length f3 of the third lens and an effective focal length f6 of the sixth lens can satisfy-2 ≤ f3/f6 ≤ 1, and more specifically, f3 and f6 can further satisfy-1.93 ≤ f3/f6 ≤ 1.19. The focal power of the first lens and the focal power of the fifth lens are reasonably arranged, so that the chromatic aberration of the system can be corrected; meanwhile, the method is beneficial to ensuring the manufacturability and the assembling manufacturability of the lens. In an exemplary embodiment, the third lens may have a negative optical power, and the sixth lens may have a positive optical power.

F/f67 ≦ 0.7 may be satisfied between the total effective focal length f of the optical imaging lens and the combined focal length f67 of the sixth lens and the seventh lens, and more specifically, f and f67 may further satisfy 0.17 ≦ f/f67 ≦ 0.64. By controlling the combined focal length f67 of the sixth lens and the seventh lens within a reasonable range, the astigmatism contributions of the sixth lens and the seventh lens are within a reasonable range, so that the contribution of the system can be effectively balanced, and the system has better imaging quality. In an exemplary embodiment, the combined optical power of the sixth lens and the seventh lens may be a positive optical power. Alternatively, the sixth lens may have a positive optical power, and the seventh lens may have a negative optical power.

The combined focal length f67 of the sixth lens and the seventh lens and the combined focal length f123 of the first lens, the second lens, and the third lens may satisfy 1 ≦ f67/f123 ≦ 5, and more specifically, f67 and f123 may further satisfy 1.22 ≦ f67/f123 ≦ 4.66. F67 and f123 are reasonably arranged, so that the total optical length of the lens can be shortened, and the miniaturization characteristic of an imaging system can be realized; the field angle of the lens is enlarged, and the wide-angle characteristic of the imaging system is realized; various aberrations are corrected, and the imaging quality and definition of an imaging system are improved; and reducing the sensitivity of the lens. In an exemplary embodiment, the combined optical power of the sixth lens and the seventh lens and the combined optical power of the first lens, the second lens, and the third lens may each be a positive optical power. Alternatively, the first lens may have a positive optical power, the second lens may have a positive optical power, the third lens may have a negative optical power, the sixth lens may have a positive optical power, and the seventh lens may have a negative optical power.

In one embodiment, the first lens may have a positive optical power, the second lens may have a positive optical power, the third lens may have a negative optical power, the fourth lens may have a positive optical power, the fifth lens may have a negative optical power, the sixth lens may have a positive optical power, and the seventh lens may have a negative optical power.

In one embodiment, the first lens may have a positive optical power, the second lens may have a positive optical power, the third lens may have a negative optical power, the fourth lens may have a negative optical power, the fifth lens may have a negative optical power, the sixth lens may have a positive optical power, and the seventh lens may have a negative optical power.

The radius of curvature R1 of the object-side surface of the first lens and the radius of curvature R2 of the image-side surface of the first lens may satisfy-120 ≦ (R1+ R2)/(R1-R2) ≦ 0, and more specifically, R1 and R2 may further satisfy-115.10 ≦ (R1+ R2)/(R1-R2) ≦ -4.37. The curvature radius of the object side surface and the curvature radius of the image side surface of the first lens are controlled within a reasonable range, so that the processing characteristic of the first lens can be ensured, and the spherical aberration of the system can be effectively corrected. Alternatively, the object-side surface of the first lens element can be convex and the image-side surface can be concave.

In an exemplary embodiment, the second lens may be arranged as a double convex lens having positive optical power, and both the object-side surface and the image-side surface thereof may be convex.

The curvature radius R1 of the object side surface of the first lens and the curvature radius R6 of the image side surface of the third lens can satisfy-11 ≦ (R1+ R6)/(R1-R6) ≦ -2.5, and more specifically, R1 and R6 can further satisfy-10.37 ≦ (R1+ R6)/(R1-R6) ≦ -3.11. The reasonable arrangement of the curvature radius R1 of the object side surface of the first lens and the curvature radius R6 of the image side surface of the third lens can effectively balance the high-order spherical aberration of the system and reduce the field sensitivity of the central area of the system. Alternatively, the object-side surface of the first lens element can be convex and the image-side surface of the third lens element can be concave.

The radius of curvature R9 of the object-side surface of the fifth lens element and the radius of curvature R10 of the image-side surface of the fifth lens element can satisfy R9+ R10/| R9-R10| ≦ 3, and more specifically, R9 and R10 can further satisfy 0.06 ≦ R9+ R10|/| R9-R10| ≦ 2.58. The curvature radius of the object side surface and the curvature radius of the image side surface of the fifth lens are reasonably arranged, so that off-axis coma and astigmatism can be effectively corrected, the light deflection angle is reduced, and the relative brightness on an imaging surface is enhanced. Alternatively, at least one of the object-side surface and the image-side surface of the fifth lens element can be concave, e.g., the object-side surface of the fifth lens element can be convex and the image-side surface can be concave, e.g., both the object-side surface and the image-side surface of the fifth lens element can be concave.

The radius of curvature R11 of the object-side surface of the sixth lens element and the radius of curvature R12 of the image-side surface of the sixth lens element may satisfy 1 ≦ R11+ R12 ≦ R11-R12 ≦ 2.5, and more specifically, R11 and R12 may further satisfy 1.12 ≦ R11+ R12|/| R11-R12| ≦ 2.22. The reasonable arrangement of the curvature radii of the object side surface and the image side surface of the sixth lens can be beneficial to the correction of the astigmatism of the system and the matching of the chief ray incident angle CRA of the chip. Alternatively, the object-side surface of the sixth lens element can be convex and the image-side surface can be concave.

The total effective focal length f of the optical imaging lens and the curvature radius R13 of the object side surface of the seventh lens can satisfy-3 < f/R13 < 1.5, more specifically, f and R13 can further satisfy-2.73 < f/R13 < 1.77. The curvature radius R13 of the object side surface of the seventh lens is reasonably controlled, so that the trend of light rays on the seventh lens can be improved, and the relative illumination of the lens is improved; meanwhile, the astigmatism of the imaging system can be effectively corrected by reasonably arranging the object side surface of the seventh lens. In an exemplary embodiment, the object side surface of the seventh lens may be concave.

Between the Abbe number V2 of the second lens and the Abbe number V3 of the third lens, | V2-V3| ≦ 50, further, V2 and V3 may satisfy 20 ≦ | V2-V3| ≦ 40, further, V2 and V3 may satisfy 30 ≦ | V2-V3| ≦ 40, for example, V2 and V3 may satisfy | V2-V3| ≦ 35.70. And the dispersion coefficients of the second lens and the third lens are reasonably distributed, so that the chromatic aberration of the system can be corrected, the chromatic aberration of the system can be balanced, and the imaging quality of the lens can be improved.

A separation distance T34 between the third lens and the fourth lens on the optical axis and a separation distance T12 between the first lens and the second lens on the optical axis may satisfy 1.5 ≦ T34/T12 ≦ 4, and more specifically, T34 and T12 may further satisfy 1.67 ≦ T34/T12 ≦ 3.77. The first lens and the second lens, and the third lens and the fourth lens are reasonably arranged in the distance on the optical axis, so that the light deflection angle can be reduced and the sensitivity of an imaging system can be reduced on the premise of ensuring the imaging quality.

A separation distance T67 between the sixth lens and the seventh lens on the optical axis and a separation distance T56 between the fifth lens and the sixth lens on the optical axis may satisfy 3. ltoreq. T67/T56. ltoreq.7, more specifically, T67 and T56 may further satisfy 3.32. ltoreq. T67/T56. ltoreq.6.70. The spacing distances of the fifth lens, the sixth lens and the seventh lens on the optical axis are reasonably arranged, and the longitudinal size of the system can be effectively compressed, so that the ultrathin characteristic of the lens is realized, and the optical imaging lens can be better applied to portable electronic equipment with limited size.

The f/EPD between the total effective focal length f of the optical imaging lens and the entrance pupil diameter EPD of the optical imaging lens can satisfy f/EPD ≦ 1.90, further, f and EPD can satisfy f/EPD ≦ 1.70 and/or f/EPD ≦ 1.50, for example, f and EPD can satisfy 1.34 ≦ f/EPD ≦ 1.86. The smaller the f-number Fno of the optical imaging lens (i.e., the total effective focal length f of the lens/the entrance pupil diameter EPD of the lens), the larger the clear aperture of the lens, the more the amount of light entering in the same unit time. The reduction of f-number Fno can effectively improve the image surface brightness, so that the lens can better meet the shooting requirements of overcast and dusk and the like when the light is insufficient. The lens is configured to satisfy the conditional expression f/EPD less than or equal to 1.90, so that the lens has the advantage of a large aperture and the illumination of an imaging surface is enhanced in the process of increasing the light transmission quantity, and the imaging effect of the lens in a dark environment is improved.

The optical imaging lens can also comprise at least one diaphragm for improving the imaging quality of the lens. Alternatively, the optical imaging lens may include a diaphragm, for example, an aperture diaphragm, 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, seven 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 optical imaging lens which is suitable for portable electronic products and has the advantages of ultrathin thickness, large aperture, high imaging quality, low sensitivity and the like is provided.

In the embodiment of the present application, at least one of the mirror surfaces of each 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 a better curvature radius characteristic, and has advantages of improving distortion aberration and improving astigmatism aberration. After the aspheric lens is adopted, the aberration generated during imaging can be eliminated as much as possible, thereby improving the imaging quality.

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 seven lenses are exemplified in the embodiment, the optical imaging lens is not limited to include seven 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 imaging side along an optical axis, 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 seventh lens E7, and an imaging surface S17.

The first lens element E1 has positive power, the object-side surface S1 is convex, the image-side surface S2 is concave, and both the object-side surface S1 and the image-side surface S2 of the first lens element E1 are aspheric.

The second lens element E2 has positive power, the object-side surface S3 is convex, the image-side surface S4 is convex, and both the object-side surface S3 and the image-side surface S4 of the second lens element E2 are aspheric.

The third lens element E3 has negative power, and has a concave object-side surface S5 and a concave image-side surface S6, and both the object-side surface S5 and the image-side surface S6 of the third lens element E3 are aspheric.

The fourth lens element E4 has negative power, and has a concave object-side surface S7, a convex image-side surface S8, and both the object-side surface S7 and the image-side surface S8 of the fourth lens element E4 are aspheric.

The fifth lens element E5 has negative power, and has a concave object-side surface S9, a concave image-side surface S10, and aspheric object-side surface S9 and image-side surface S10 of the fifth lens element E5.

The sixth lens element E6 has positive power, and has a convex object-side surface S11 and a concave image-side surface S12, and both the object-side surface S11 and the image-side surface S12 of the sixth lens element E6 are aspheric.

The seventh lens element E7 has negative power, and has a concave object-side surface S13 and a convex image-side surface S14, and both the object-side surface S13 and the image-side surface S14 of the seventh lens element E7 are aspheric.

Optionally, the optical imaging lens may further include a filter E8 having an object side S15 and an image side S16. The light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging surface S17.

Optionally, the optical imaging lens may further include a stop STO disposed between the object side and the first lens E1 to improve the imaging quality of the lens.

Table 1 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens of the optical imaging lens of example 1, wherein the unit of the radius of curvature and the thickness are both millimeters (mm).

TABLE 1

As can be seen from table 1, the radius of curvature R1 of the object-side surface S1 of the first lens E1 and the radius of curvature R2 of the image-side surface S2 of the first lens E1 satisfy (R1+ R2)/(R1-R2) — 5.10; the radius of curvature R1 of the object-side surface S1 of the first lens E1 and the radius of curvature R6 of the image-side surface S6 of the third lens E3 satisfy (R1+ R6)/(R1-R6) — 3.12; the radius of curvature R9 of the object-side surface S9 of the fifth lens E5 and the radius of curvature R10 of the image-side surface S10 of the fifth lens E5 satisfy | R9+ R10|/| R9-R10|, 0.64; the radius of curvature R11 of the object-side surface S11 of the sixth lens E6 and the radius of curvature R12 of the image-side surface S12 of the sixth lens E6 satisfy | R11+ R12|/| R11-R12| ═ 1.82; the spacing distance T34 of the third lens E3 and the fourth lens E4 on the optical axis and the spacing distance T12 of the first lens E1 and the second lens E2 on the optical axis satisfy that T34/T12 is 1.88; the separation distance T67 of the sixth lens E6 and the seventh lens E7 on the optical axis and the separation distance T56 of the fifth lens E5 and the sixth lens E6 on the optical axis satisfy T67/T56-4.80; the abbe number V2 of the second lens E2 and the abbe number V3 of the third lens E3 satisfy | V2-V3| ═ 35.70.

In the present embodiment, each lens may be an aspheric lens, and each aspheric surface type x is defined by the following 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 the conic coefficient (given in table 1); ai is the correction coefficient of the i-th order of the aspherical surface. Table 2 below gives the coefficients A of the higher-order terms that can be used for the aspherical mirrors S1-S14 in example 1 ₄ 、A ₆ 、A ₈ 、A ₁₀ 、A ₁₂ 、A ₁₄ 、A ₁₆ 、A ₁₈ And A ₂₀ 。

Flour mark

A4

A6

A8

A10

A12

A14

A16

A18

A20

S1

2.5972E-02

-8.0753E-03

2.7260E-03

-2.8982E-02

6.3894E-02

-8.4020E-02

6.4279E-02

-2.7086E-02

4.8515E-03

S2

5.6390E-03

-4.6467E-02

1.1725E-01

-3.5723E-01

6.9989E-01

-8.3899E-01

6.0455E-01

-2.4098E-01

4.0829E-02

S3

3.3995E-02

-6.8515E-02

3.2601E-02

5.7953E-02

-1.7212E-01

2.6049E-01

-2.1817E-01

9.4616E-02

-1.6724E-02

S4

-2.2098E-02

-1.9298E-01

6.4919E-01

-1.4119E+00

2.1070E+00

-2.0496E+00

1.2217E+00

-4.0221E-01

5.5806E-02

S5

4.3040E-02

-2.3904E-01

6.9281E-01

-1.4927E+00

2.2302E+00

-2.1963E+00

1.3307E+00

-4.4298E-01

6.1653E-02

S6

5.2024E-02

-1.2516E-01

3.2868E-01

-7.3821E-01

1.1260E+00

-1.1175E+00

6.9112E-01

-2.4037E-01

3.6113E-02

S7

-3.0016E-02

-3.4909E-02

-2.4316E-01

1.0040E+00

-1.8029E+00

1.8792E+00

-1.1448E+00

3.7694E-01

-5.2149E-02

S8

5.3739E-02

-1.3483E-01

-3.3676E-01

1.2208E+00

-1.8034E+00

1.5333E+00

-7.5202E-01

1.9575E-01

-2.0912E-02

S9

1.0254E-01

-1.5798E-01

1.5362E-03

2.0670E-01

-3.3454E-01

2.8807E-01

-1.3945E-01

3.5541E-02

-3.7331E-03

S10

-1.3746E-01

7.2725E-02

2.0299E-02

-9.3877E-02

8.6951E-02

-4.2102E-02

1.1824E-02

-1.8452E-03

1.2463E-04

S11

8.1115E-02

-1.7867E-01

1.4400E-01

-7.7858E-02

3.0502E-02

-8.9876E-03

1.8222E-03

-2.1241E-04

1.0379E-05

S12

1.0374E-01

-1.7007E-01

8.9959E-02

-1.9136E-02

-1.9298E-03

1.9738E-03

-4.4224E-04

4.4872E-05

-1.7808E-06

S13

1.8414E-01

-3.5799E-01

2.9280E-01

-1.2737E-01

3.3650E-02

-5.6081E-03

5.7864E-04

-3.3839E-05

8.5856E-07

S14

1.6736E-01

-2.6622E-01

1.7253E-01

-6.2432E-02

1.3886E-02

-1.9483E-03

1.6809E-04

-8.1187E-06

1.6723E-07

TABLE 2

Table 3 gives effective focal lengths f1 to f7 of the respective lenses, a total effective focal length f of the optical imaging lens, an optical total length TTL (i.e., a distance on the optical axis from the center of the object side surface S1 of the first lens E1 to the imaging surface S17), and a half ImgH of the diagonal length of the effective pixel region on the imaging surface S17 in embodiment 1.

Parameter(s)	f1(mm)	f2(mm)	f3(mm)	f4(mm)	f5(mm)
						Numerical value	9.24	3.96	-5.49	-588.79	-10.92
Parameter(s)	f6(mm)	f7(mm)	f(mm)	TTL(mm)	ImgH(mm)
						Numerical value	3.92	-3.70	4.22	5.15	3.48

TABLE 3

As can be seen from tables 1 and 3, the effective focal length f5 of the fifth lens E5 and the effective focal length f1 of the first lens E1 satisfy f5/f1 ═ 1.18; the effective focal length f3 of the third lens E3 and the effective focal length f6 of the sixth lens E6 satisfy f3/f6 ═ 1.40; the total effective focal length f of the optical imaging lens and the radius of curvature R13 of the object side S13 of the seventh lens E7 satisfy f/R13 ═ 2.65.

f/EPD (1.86) is satisfied between the total effective focal length f of the optical imaging lens and the entrance pupil diameter EPD of the optical imaging lens; the total effective focal length f of the optical imaging lens and the combined focal length f67 of the sixth lens E6 and the seventh lens E7 satisfy f/f 67-0.32; the combined focal length f67 of the sixth lens E6 and the seventh lens E7 and the combined focal length f123 of the first lens E1, the second lens E2, and the third lens E3 satisfy f67/f123 ═ 2.61.

Fig. 2A shows on-axis chromatic aberration curves of the optical imaging lens of embodiment 1, which represent 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 the distortion magnitude values in the case of 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 includes, in order from the object side to the imaging side along the optical axis, 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 seventh lens E7, and an imaging surface S17.

The third lens element E3 has negative power, and has a convex object-side surface S5 and a concave image-side surface S6, and both the object-side surface S5 and the image-side surface S6 of the third lens element E3 are aspheric.

The fourth lens element E4 has positive power, and has a convex object-side surface S7 and a convex image-side surface S8, and both the object-side surface S7 and the image-side surface S8 of the fourth lens element E4 are aspheric.

The fifth lens element E5 has negative power, and has a concave object-side surface S9, a concave image-side surface S10, and both the object-side surface S9 and the image-side surface S10 of the fifth lens element E5 are aspheric.

The seventh lens element E7 has negative power, and has a concave object-side surface S13, a convex image-side surface S14, and both the object-side surface S13 and the image-side surface S14 of the seventh lens element E7 are aspheric.

Table 4 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens of the optical imaging lens of example 2, wherein the unit of the radius of curvature and the thickness are both millimeters (mm). Table 5 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 6 shows the effective focal lengths f1 to f7 of the respective lenses, the total effective focal length f of the optical imaging lens, the total optical length TTL, and half ImgH of the diagonal length of the effective pixel area on the imaging surface S17 in embodiment 2.

TABLE 4

Flour mark

A4

A6

A8

A10

A12

A14

A16

A18

A20

S1

2.1155E-02

-2.7388E-02

7.3883E-02

-1.7283E-01

2.5289E-01

-2.3458E-01

1.3278E-01

-4.1400E-02

5.4093E-03

S2

1.3575E-02

-6.2913E-02

8.4195E-02

-1.4347E-01

2.1693E-01

-2.1273E-01

1.3048E-01

-4.4902E-02

6.4723E-03

S3

4.8922E-02

-8.8806E-02

6.8220E-02

-2.9795E-02

-5.0883E-03

3.9661E-02

-3.5608E-02

1.2888E-02

-1.7881E-03

S4

-2.6034E-03

-1.3439E-01

2.4650E-01

-2.6663E-01

1.7982E-01

-6.5913E-02

6.6621E-03

2.9159E-03

-7.3521E-04

S5

2.8645E-03

-1.2840E-01

2.3724E-01

-1.5127E-01

-1.2370E-01

2.9154E-01

-2.1705E-01

7.6293E-02

-1.0609E-02

S6

1.7102E-02

-7.3939E-02

2.0710E-01

-3.5169E-01

4.2357E-01

-3.8854E-01

2.5377E-01

-9.8209E-02

1.6436E-02

S7

4.3221E-02

-1.4969E-01

-1.0150E-01

8.1039E-01

-1.5026E+00

1.4786E+00

-8.2137E-01

2.4364E-01

-3.0301E-02

S8

1.7227E-01

-3.2683E-01

-1.3590E-02

7.2573E-01

-1.2313E+00

1.0578E+00

-4.9783E-01

1.2103E-01

-1.1896E-02

S9

1.3580E-01

-2.2586E-01

1.2184E-01

1.2055E-01

-3.6558E-01

3.7213E-01

-1.8969E-01

4.8594E-02

-5.0078E-03

S10

-1.4237E-01

6.7453E-02

1.8220E-02

-6.2614E-02

2.6461E-02

9.0866E-03

-9.8481E-03

2.7044E-03

-2.5493E-04

S11

1.1758E-01

-2.4410E-01

2.2754E-01

-1.5244E-01

7.1464E-02

-2.3074E-02

4.8017E-03

-5.6378E-04

2.7874E-05

S12

1.4115E-01

-2.4732E-01

1.7599E-01

-8.0860E-02

2.4936E-02

-5.0734E-03

6.5304E-04

-4.8398E-05

1.5809E-06

S13

1.7135E-01

-3.0656E-01

2.3236E-01

-9.2172E-02

2.2048E-02

-3.3183E-03

3.0904E-04

-1.6321E-05

3.7418E-07

S14

1.6093E-01

-2.4213E-01

1.5145E-01

-5.3364E-02

1.1637E-02

-1.6152E-03

1.3946E-04

-6.8220E-06

1.4380E-07

TABLE 5

Parameter(s)	f1(mm)	f2(mm)	f3(mm)	f4(mm)	f5(mm)
						Numerical value	14.86	4.04	-6.21	14.01	-8.30
Parameter(s)	f6(mm)	f7(mm)	f(mm)	TTL(mm)	ImgH(mm)
						Numerical value	4.12	-3.74	4.21	5.15	3.47

TABLE 6

Fig. 4A shows on-axis chromatic aberration curves of the optical imaging lens of embodiment 2, which represent 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 the distortion magnitude values in the case of 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 includes, in order from the object side to the imaging side along the optical axis, 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 seventh lens E7, and an imaging surface S17.

The second lens element E2 has positive power, and has a convex object-side surface S3 and a convex image-side surface S4, and both the object-side surface S3 and the image-side surface S4 of the second lens element E2 are aspheric.

Table 7 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens of the optical imaging lens of example 3, wherein the unit of the radius of curvature and the thickness are both millimeters (mm). Table 8 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 9 shows the effective focal lengths f1 to f7 of the respective lenses, the total effective focal length f of the optical imaging lens, the total optical length TTL, and half ImgH of the diagonal length of the effective pixel area on the imaging surface S17 in embodiment 3.

TABLE 7

TABLE 8

Parameter(s)	f1(mm)	f2(mm)	f3(mm)	f4(mm)	f5(mm)
						Numerical value	15.00	4.05	-6.27	13.76	-8.18
Parameter(s)	f6(mm)	f7(mm)	f(mm)	TTL(mm)	ImgH(mm)
						Numerical value	4.07	-3.77	4.18	5.15	3.50

TABLE 9

Fig. 6A shows on-axis chromatic aberration curves of the optical imaging lens of embodiment 3, which represent 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 the distortion magnitude values in the case of 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 includes, in order from the object side to the imaging side along the optical axis, 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 seventh lens E7, and an imaging surface S17.

The fourth lens element E4 has positive power, and has a convex object-side surface S7, a convex image-side surface S8, and both the object-side surface S7 and the image-side surface S8 of the fourth lens element E4 are aspheric.

Table 10 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens of the optical imaging lens of example 4, wherein the unit of the radius of curvature and the thickness are both millimeters (mm). Table 11 shows high-order term coefficients that can be used for each aspherical mirror surface in embodiment 4, wherein each aspherical mirror surface type can be defined by the formula (1) given in embodiment 1 above. Table 12 shows the effective focal lengths f1 to f7 of the respective lenses, the total effective focal length f of the optical imaging lens, the total optical length TTL, and half ImgH of the diagonal length of the effective pixel area on the imaging surface S17 in embodiment 4.

Watch 10

Flour mark

A4

A6

A8

A10

A12

A14

A16

A18

A20

S1

1.8456E-02

-1.9502E-02

3.5955E-02

-7.1652E-02

9.0832E-02

-7.4007E-02

3.6922E-02

-1.0018E-02

1.1190E-03

S2

1.9932E-02

-9.2695E-02

1.7439E-01

-3.2421E-01

4.3559E-01

-3.6884E-01

1.8970E-01

-5.3865E-02

6.4331E-03

S3

5.5011E-02

-1.0273E-01

1.2249E-01

-1.7859E-01

2.2952E-01

-1.8453E-01

8.9589E-02

-2.4411E-02

2.8141E-03

S4

1.0768E-02

-1.8017E-01

3.2623E-01

-3.3889E-01

2.1759E-01

-8.4793E-02

1.9023E-02

-2.4525E-03

1.8666E-04

S5

1.2450E-02

-1.7957E-01

3.8768E-01

-4.5898E-01

3.4103E-01

-1.8354E-01

7.9990E-02

-2.4967E-02

3.7431E-03

S6

2.1019E-02

-9.1022E-02

2.6909E-01

-4.7179E-01

5.7465E-01

-5.0978E-01

3.0870E-01

-1.0953E-01

1.6887E-02

S7

3.4598E-02

-8.8962E-02

-3.4339E-01

1.3824E+00

-2.3244E+00

2.2104E+00

-1.2183E+00

3.6397E-01

-4.5921E-02

S8

1.8834E-01

-3.8942E-01

1.7624E-01

3.6141E-01

-8.1439E-01

7.6835E-01

-3.7860E-01

9.4463E-02

-9.4587E-03

S9

1.4103E-01

-2.9070E-01

3.2948E-01

-2.1883E-01

-5.7838E-02

2.1237E-01

-1.4340E-01

4.1934E-02

-4.6814E-03

S10

-1.4255E-01

3.0547E-02

1.5350E-01

-2.7163E-01

2.0566E-01

-8.2999E-02

1.8538E-02

-2.1607E-03

1.0251E-04

S11

1.0135E-01

-2.4567E-01

2.5964E-01

-1.8970E-01

9.3266E-02

-3.1062E-02

6.6641E-03

-8.1108E-04

4.1804E-05

S12

1.3306E-01

-2.5156E-01

1.9951E-01

-1.0354E-01

3.5504E-02

-7.8436E-03

1.0696E-03

-8.1913E-05

2.6988E-06

S13

1.7409E-01

-3.2261E-01

2.4878E-01

-9.9912E-02

2.4096E-02

-3.6425E-03

3.3978E-04

-1.7946E-05

4.1131E-07

S14

1.6621E-01

-2.5444E-01

1.6358E-01

-5.9407E-02

1.3405E-02

-1.9369E-03

1.7538E-04

-9.0693E-06

2.0385E-07

TABLE 11

Parameter(s)	f1(mm)	f2(mm)	f3(mm)	f4(mm)	f5(mm)
						Numerical value	15.64	4.12	-6.80	13.29	-7.81
Parameter(s)	f6(mm)	f7(mm)	f(mm)	TTL(mm)	ImgH(mm)
						Numerical value	4.01	-3.82	4.14	5.15	3.50

TABLE 12

Fig. 8A shows on-axis chromatic aberration curves of the optical imaging lens of embodiment 4, which represent 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 the distortion magnitude values in the case of 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 system 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 the object side to the imaging side along the optical axis, 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 seventh lens E7, and an imaging surface S17.

Optionally, the optical imaging lens may further include a filter E8 having an object-side surface S15 and an image-side surface S16. The light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging surface S17.

Table 13 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens of the optical imaging lens of example 5, wherein the unit of the radius of curvature and the thickness are both millimeters (mm). Table 14 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 15 shows effective focal lengths f1 to f7 of the respective lenses, a total effective focal length f of the optical imaging lens, an optical total length TTL, and a half ImgH of a diagonal length of an effective pixel area on the imaging surface S17 in example 5.

Watch 13

Flour mark

A4

A6

A8

A10

A12

A14

A16

A18

A20

S1

1.0381E-02

-2.7286E-02

5.2890E-02

-1.0545E-01

1.4076E-01

-1.2020E-01

6.3105E-02

-1.8303E-02

2.2327E-03

S2

1.5597E-02

-1.0054E-01

1.6545E-01

-2.5292E-01

3.1395E-01

-2.6183E-01

1.3652E-01

-3.9973E-02

5.0039E-03

S3

7.2765E-02

-1.2903E-01

1.8786E-01

-3.0401E-01

3.8903E-01

-3.2208E-01

1.6385E-01

-4.6964E-02

5.7925E-03

S4

4.8833E-02

-3.4451E-01

7.1477E-01

-9.8032E-01

9.3288E-01

-6.0397E-01

2.5213E-01

-6.1119E-02

6.5385E-03

S5

4.6744E-02

-3.4605E-01

7.8803E-01

-1.0568E+00

9.3318E-01

-5.5893E-01

2.1957E-01

-5.0950E-02

5.3122E-03

S6

2.8288E-02

-1.4361E-01

4.0729E-01

-6.3878E-01

6.7701E-01

-5.1540E-01

2.6972E-01

-8.4766E-02

1.1835E-02

S7

2.9776E-02

-1.1354E-01

-1.1092E-01

6.7206E-01

-1.1696E+00

1.1043E+00

-5.9256E-01

1.7064E-01

-2.0727E-02

S8

1.7548E-01

-4.1018E-01

5.0338E-01

-5.6819E-01

5.2624E-01

-3.6660E-01

1.8500E-01

-5.6323E-02

7.2552E-03

S9

1.1665E-01

-2.0446E-01

1.3955E-01

1.0562E-01

-4.2975E-01

4.6871E-01

-2.4562E-01

6.3875E-02

-6.6582E-03

S10

-1.5125E-01

3.6547E-02

1.0978E-01

-1.7086E-01

9.1282E-02

-1.0992E-02

-7.3678E-03

2.8735E-03

-3.0909E-04

S11

4.3321E-02

-1.2750E-01

1.1347E-01

-7.0245E-02

3.1239E-02

-1.0638E-02

2.5199E-03

-3.3956E-04

1.8883E-05

S12

1.1392E-01

-1.5709E-01

6.5439E-02

6.4079E-04

-1.1641E-02

4.8812E-03

-9.4562E-04

9.0667E-05

-3.4642E-06

S13

2.0284E-01

-4.0797E-01

3.4458E-01

-1.5685E-01

4.3776E-02

-7.7358E-03

8.4601E-04

-5.2315E-05

1.3994E-06

S14

1.7808E-01

-2.8564E-01

1.9526E-01

-7.5445E-02

1.8035E-02

-2.7335E-03

2.5612E-04

-1.3519E-05

3.0684E-07

TABLE 14

Watch 15

Fig. 10A shows on-axis chromatic aberration curves of the optical imaging lens of embodiment 5, which represent deviation of convergence focuses 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 the distortion magnitude values in the case of 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 includes, in order from the object side to the imaging side along the optical axis, 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 seventh lens E7, and an imaging surface S17.

The third lens element E3 has negative power, and has a convex object-side surface S5, a concave image-side surface S6, and both the object-side surface S5 and the image-side surface S6 of the third lens element E3 are aspheric.

Table 16 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens of the optical imaging lens of example 6, wherein the unit of the radius of curvature and the thickness are both millimeters (mm). Table 17 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 18 shows effective focal lengths f1 to f7 of the respective lenses, a total effective focal length f of the optical imaging lens, an optical total length TTL, and a half ImgH of a diagonal length of an effective pixel area on the imaging surface S17 in example 6.

TABLE 16

Flour mark

A4

A6

A8

A10

A12

A14

A16

A18

A20

S1

7.0370E-03

-2.7256E-02

5.5003E-02

-1.0324E-01

1.2786E-01

-1.0132E-01

4.9805E-02

-1.3644E-02

1.5817E-03

S2

1.6356E-02

-1.1219E-01

1.9068E-01

-2.8082E-01

3.2594E-01

-2.5424E-01

1.2444E-01

-3.4348E-02

4.0751E-03

S3

7.3929E-02

-1.3057E-01

1.9189E-01

-3.0197E-01

3.6825E-01

-2.8932E-01

1.3910E-01

-3.7614E-02

4.3903E-03

S4

5.8065E-02

-3.9079E-01

8.2996E-01

-1.1685E+00

1.1375E+00

-7.4786E-01

3.1396E-01

-7.5654E-02

7.9506E-03

S5

5.1991E-02

-3.7647E-01

8.8052E-01

-1.2409E+00

1.1716E+00

-7.5203E-01

3.1267E-01

-7.5137E-02

7.8817E-03

S6

2.4229E-02

-1.3000E-01

3.8912E-01

-6.2311E-01

6.6037E-01

-4.8818E-01

2.4137E-01

-7.0624E-02

9.1628E-03

S7

1.8520E-02

-7.7938E-02

-1.7223E-01

7.3752E-01

-1.1950E+00

1.0829E+00

-5.6282E-01

1.5713E-01

-1.8417E-02

S8

1.7249E-01

-3.7511E-01

3.7115E-01

-2.7361E-01

1.1737E-01

-1.5393E-02

3.9212E-03

-5.1929E-03

1.2135E-03

S9

1.2458E-01

-2.3366E-01

2.0112E-01

3.5412E-02

-3.8996E-01

4.6267E-01

-2.5018E-01

6.6192E-02

-6.9787E-03

S10

-1.5447E-01

1.8071E-02

1.6201E-01

-2.3529E-01

1.3635E-01

-2.9517E-02

-3.1818E-03

2.4555E-03

-3.0308E-04

S11

4.2174E-02

-1.2816E-01

1.1253E-01

-6.8272E-02

3.0794E-02

-1.1133E-02

2.8146E-03

-3.9759E-04

2.2819E-05

S12

1.1617E-01

-1.5244E-01

5.0841E-02

1.7736E-02

-2.1890E-02

8.3273E-03

-1.6029E-03

1.5711E-04

-6.2296E-06

S13

1.9341E-01

-3.9385E-01

3.3821E-01

-1.5743E-01

4.5187E-02

-8.2411E-03

9.3152E-04

-5.9541E-05

1.6450E-06

S14

1.7088E-01

-2.7821E-01

1.9443E-01

-7.7115E-02

1.8956E-02

-2.9557E-03

2.8477E-04

-1.5444E-05

3.5972E-07

TABLE 17

Parameter(s)	f1(mm)	f2(mm)	f3(mm)	f4(mm)	f5(mm)
						Numerical value	44.52	3.55	-6.29	9.57	-6.29
Parameter(s)	f6(mm)	f7(mm)	f(mm)	TTL(mm)	ImgH(mm)
						Numerical value	3.27	-3.36	3.86	5.15	3.30

Watch 18

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 the distortion magnitude values in the case of 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.

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 view showing a configuration of 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 the object side to the imaging side along the optical axis, 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 seventh lens E7, and an imaging surface S17.

The fourth lens element E4 has negative power, and has a convex object-side surface S7 and a concave image-side surface S8, and the object-side surface S7 and the image-side surface S8 of the fourth lens element E4 are aspheric.

Table 19 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens of the optical imaging lens of example 7, wherein the unit of the radius of curvature and the thickness are both millimeters (mm). Table 20 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. Table 21 shows effective focal lengths f1 to f7 of the respective lenses, a total effective focal length f of the optical imaging lens, an optical total length TTL, and a half ImgH of a diagonal length of an effective pixel area on the imaging surface S17 in example 7.

Watch 19

Flour mark

A4

A6

A8

A10

A12

A14

A16

A18

A20

S1

2.3841E-02

-1.3902E-02

1.2640E-02

-2.8926E-02

3.2595E-02

-2.3655E-02

9.7262E-03

-1.5038E-03

-8.9828E-05

S2

-2.4104E-03

-6.1721E-02

1.5336E-01

-3.9192E-01

6.7313E-01

-7.0730E-01

4.4544E-01

-1.5394E-01

2.2310E-02

S3

3.9210E-02

-1.2259E-01

1.5571E-01

-1.7588E-01

1.9436E-01

-1.3508E-01

5.1322E-02

-8.8588E-03

1.7008E-04

S4

-2.6721E-02

-1.6891E-01

5.4893E-01

-1.0318E+00

1.2793E+00

-1.0369E+00

5.2552E-01

-1.5036E-01

1.8378E-02

S5

4.4600E-02

-1.7060E-01

4.2939E-01

-7.2907E-01

7.8056E-01

-5.4279E-01

2.4291E-01

-6.3141E-02

7.1843E-03

S6

4.5407E-02

-9.3421E-02

2.4870E-01

-5.8523E-01

9.0719E-01

-9.2718E-01

6.0509E-01

-2.2511E-01

3.6115E-02

S7

-6.5039E-03

-2.0025E-01

5.3626E-02

8.8506E-01

-2.1688E+00

2.5371E+00

-1.6374E+00

5.5981E-01

-7.9738E-02

S8

1.2293E-01

-4.9301E-01

5.0231E-01

2.7572E-02

-6.9979E-01

8.6061E-01

-4.9024E-01

1.3675E-01

-1.5059E-02

S9

1.5748E-01

-3.1695E-01

2.9567E-01

-1.0408E-01

-1.6284E-01

2.5580E-01

-1.5198E-01

4.2809E-02

-4.7668E-03

S10

-1.6426E-01

1.0828E-01

1.4520E-02

-1.1288E-01

1.0040E-01

-4.3707E-02

1.0509E-02

-1.3537E-03

7.3724E-05

S11

4.4661E-02

-1.6138E-01

1.3355E-01

-6.6192E-02

2.0927E-02

-4.6915E-03

7.7708E-04

-8.0850E-05

3.6025E-06

S12

1.1496E-01

-2.4441E-01

1.8031E-01

-7.9371E-02

2.2650E-02

-4.2953E-03

5.2790E-04

-3.8111E-05

1.2218E-06

S13

1.8659E-01

-3.5293E-01

2.8348E-01

-1.2125E-01

3.1221E-02

-5.0149E-03

4.9339E-04

-2.7260E-05

6.4837E-07

S14

1.6782E-01

-2.7153E-01

1.7585E-01

-6.3169E-02

1.3804E-02

-1.8795E-03

1.5528E-04

-7.0677E-06

1.3412E-07

Watch 20

Parameter(s)	f1(mm)	f2(mm)	f3(mm)	f4(mm)	f5(mm)
						Numerical value	9.32	4.02	-5.62	-1001.98	-9.82
Parameter(s)	f6(mm)	f7(mm)	f(mm)	TTL(mm)	ImgH(mm)
						Numerical value	3.91	-3.99	4.22	5.15	3.50

TABLE 21

Fig. 14A shows on-axis chromatic aberration curves of the optical imaging lens of embodiment 7, which represent deviation of convergence focuses 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 the distortion magnitude values in the case of different angles of view. 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.

Example 8

An optical imaging lens according to embodiment 8 of the present application is described below with reference to fig. 15 to 16D. Fig. 15 shows a schematic structural diagram of an optical imaging lens according to embodiment 8 of the present application.

As shown in fig. 15, the optical imaging lens includes, in order from the object side to the image side along the optical axis, 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 seventh lens E7, and an imaging surface S17.

Table 22 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens of the optical imaging lens of example 8, wherein the unit of the radius of curvature and the thickness are both millimeters (mm). Table 23 shows high-order term coefficients that can be used for each aspherical mirror surface in example 8, wherein each aspherical mirror surface type can be defined by formula (1) given in example 1 above. Table 24 shows the effective focal lengths f1 to f7 of the respective lenses, the total effective focal length f of the optical imaging lens, the total optical length TTL, and half the diagonal length ImgH of the effective pixel area on the imaging surface S17 in example 8.

TABLE 22

TABLE 23

Parameter(s)	f1(mm)	f2(mm)	f3(mm)	f4(mm)	f5(mm)
						Numerical value	34.51	2.94	-5.19	-1001.84	-8.13
Parameter(s)	f6(mm)	f7(mm)	f(mm)	TTL(mm)	ImgH(mm)
						Numerical value	3.39	-4.16	4.01	5.12	3.33

Watch 24

Fig. 16A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 8, which represents the deviation of the convergent focal points of light rays of different wavelengths after passing through the lens. Fig. 16B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging lens of embodiment 8. Fig. 16C shows a distortion curve of the optical imaging lens of embodiment 8, which represents distortion magnitude values in the case of different angles of view. Fig. 16D shows a chromatic aberration of magnification curve of the optical imaging lens of embodiment 8, which represents a deviation of different image heights on the imaging surface after light passes through the lens. As can be seen from fig. 16A to 16D, the optical imaging lens according to embodiment 8 can achieve good imaging quality.

Example 9

An optical imaging lens according to embodiment 9 of the present application is described below with reference to fig. 17 to 18D. Fig. 17 is a schematic structural view showing an optical imaging lens according to embodiment 9 of the present application.

As shown in fig. 17, the optical imaging lens includes, in order from the object side to the imaging side along the optical axis, 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 seventh lens E7, and an imaging surface S17.

The first lens element E1 has positive power, and has a convex object-side surface S1, a concave image-side surface S2, and both the object-side surface S1 and the image-side surface S2 of the first lens element E1 are aspheric.

Table 25 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens of the optical imaging lens of example 9, wherein the unit of the radius of curvature and the thickness are both millimeters (mm). Table 26 shows high-order term coefficients that can be used for each aspherical mirror surface in example 9, wherein each aspherical mirror surface type can be defined by formula (1) given in example 1 above. Table 27 shows the effective focal lengths f1 to f7 of the respective lenses, the total effective focal length f of the optical imaging lens, the total optical length TTL, and half the diagonal length ImgH of the effective pixel area on the imaging surface S17 in example 9.

TABLE 25

Flour mark

A4

A6

A8

A10

A12

A14

A16

A18

A20

S1

1.7246E-02

-2.2418E-02

-8.7158E-03

3.0621E-02

-5.2124E-02

4.5927E-02

-2.0997E-02

4.8256E-03

-4.5037E-04

S2

3.1821E-02

-2.2589E-01

3.2306E-01

-3.4873E-01

3.0625E-01

-1.9057E-01

7.6111E-02

-1.7503E-02

1.7489E-03

S3

7.9722E-02

-2.1344E-01

2.7035E-01

-2.8660E-01

2.9099E-01

-1.9844E-01

7.4556E-02

-1.2716E-02

4.0597E-04

S4

-1.2487E-02

-7.7743E-02

7.5481E-02

7.3116E-02

-2.3548E-01

2.4334E-01

-1.3091E-01

3.6507E-02

-4.1963E-03

S5

3.8262E-02

-3.0032E-02

-6.4340E-02

3.5806E-01

-6.9849E-01

7.0561E-01

-3.9528E-01

1.1708E-01

-1.4271E-02

S6

3.9929E-03

3.0499E-02

5.0638E-02

-3.0296E-01

6.1147E-01

-7.4266E-01

5.5187E-01

-2.2606E-01

3.8901E-02

S7

-5.7892E-02

-1.2325E-01

-1.0432E-02

8.2647E-01

-1.8035E+00

1.9447E+00

-1.1745E+00

3.8050E-01

-5.1914E-02

S8

8.5337E-02

-5.3807E-01

9.4555E-01

-1.1786E+00

1.1250E+00

-7.8835E-01

3.7839E-01

-1.0757E-01

1.3213E-02

S9

2.1278E-01

-3.9779E-01

5.1343E-01

-5.2291E-01

3.4388E-01

-1.2801E-01

1.8594E-02

2.6726E-03

-9.3628E-04

S10

-1.7226E-01

1.3552E-01

2.7769E-02

-1.6462E-01

1.5064E-01

-7.1663E-02

1.9717E-02

-2.9835E-03

1.9250E-04

S11

-5.1307E-02

-1.8635E-02

-1.7794E-03

2.8870E-02

-2.7624E-02

1.2066E-02

-2.7703E-03

3.2586E-04

-1.5549E-05

S12

1.6212E-01

-3.1044E-01

2.4513E-01

-1.2418E-01

4.3291E-02

-1.0300E-02

1.5716E-03

-1.3641E-04

5.0701E-06

S13

2.0755E-01

-3.6471E-01

2.6433E-01

-9.6597E-02

1.9022E-02

-1.8202E-03

2.4863E-05

9.2497E-06

-5.3395E-07

S14

1.7094E-01

-2.8247E-01

1.8554E-01

-6.7939E-02

1.5272E-02

-2.1609E-03

1.8783E-04

-9.1476E-06

1.9042E-07

Watch 26

Parameter(s)	f1(mm)	f2(mm)	f3(mm)	f4(mm)	f5(mm)
						Numerical value	39.51	2.85	-4.96	-1001.36	-7.33
Parameter(s)	f6(mm)	f7(mm)	f(mm)	TTL(mm)	ImgH(mm)
						Numerical value	3.19	-4.17	3.93	5.12	3.25

Watch 27

Fig. 18A shows an on-axis chromatic aberration curve of an optical imaging lens of embodiment 9, which represents the deviation of the convergent focal points of light rays of different wavelengths after passing through the lens. Fig. 18B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging lens of embodiment 9. Fig. 18C shows a distortion curve of the optical imaging lens of embodiment 9, which represents the distortion magnitude values in the case of different angles of view. Fig. 18D shows a chromatic aberration of magnification curve of the optical imaging lens of embodiment 9, which represents a deviation of different image heights on the imaging surface after light passes through the lens. As can be seen from fig. 18A to 18D, the optical imaging lens according to embodiment 9 can achieve good imaging quality.

Example 10

An optical imaging lens according to embodiment 10 of the present application is described below with reference to fig. 19 to 20D. Fig. 19 shows a schematic structural diagram of an optical imaging lens according to embodiment 10 of the present application.

As shown in fig. 19, the optical imaging lens includes, in order from the object side to the imaging side along the optical axis, 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 seventh lens E7, and an imaging surface S17.

The seventh lens element E7 has negative power, and has a concave object-side surface S13 and a concave image-side surface S14, and both the object-side surface S13 and the image-side surface S14 of the seventh lens element E7 are aspheric.

Table 28 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens of the optical imaging lens of example 10, wherein the unit of the radius of curvature and the thickness are both millimeters (mm). Table 29 shows high-order term coefficients that can be used for each aspherical mirror surface in example 10, wherein each aspherical mirror surface type can be defined by formula (1) given in example 1 above. Table 30 shows the effective focal lengths f1 to f7 of the respective lenses, the total effective focal length f of the optical imaging lens, the total optical length TTL, and half ImgH of the diagonal length of the effective pixel area on the imaging surface S17 in example 10.

Watch 28

Watch 29

Parameter(s)	f1(mm)	f2(mm)	f3(mm)	f4(mm)	f5(mm)
						Numerical value	26.47	2.93	-4.78	-1001.23	-7.42
Parameter(s)	f6(mm)	f7(mm)	f(mm)	TTL(mm)	ImgH(mm)
						Numerical value	3.17	-4.04	3.93	5.12	3.25

Watch 30

Fig. 20A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 10, which represents the deviation of the convergent focal points of light rays of different wavelengths after passing through the lens. Fig. 20B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging lens of embodiment 10. Fig. 20C shows a distortion curve of the optical imaging lens of embodiment 10, which represents the distortion magnitude values in the case of different angles of view. Fig. 20D shows a chromatic aberration of magnification curve of the optical imaging lens of embodiment 10, which represents a deviation of different image heights on the imaging surface after light passes through the lens. As can be seen from fig. 20A to 20D, the optical imaging lens according to embodiment 10 can achieve good imaging quality.

Example 11

An optical imaging lens according to embodiment 11 of the present application is described below with reference to fig. 21 to 22D. Fig. 21 is a schematic structural view showing an optical imaging lens according to embodiment 11 of the present application.

As shown in fig. 21, the optical imaging lens includes, in order from the object side to the imaging side along the optical axis, 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 seventh lens E7, and an imaging surface S17.

The fourth lens element E4 has negative power, and has a convex object-side surface S7, a concave image-side surface S8, and both the object-side surface S7 and the image-side surface S8 of the fourth lens element E4 are aspheric.

The sixth lens element E6 has positive power, and has a convex object-side surface S11, a concave image-side surface S12, and both the object-side surface S11 and the image-side surface S12 of the sixth lens element E6 are aspheric.

Table 31 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens of the optical imaging lens of example 11, wherein the unit of the radius of curvature and the thickness are both millimeters (mm). Table 32 shows high-order term coefficients that can be used for each aspherical mirror surface in example 11, wherein each aspherical mirror surface type can be defined by formula (1) given in example 1 above. Table 33 shows the effective focal lengths f1 to f7 of the respective lenses, the total effective focal length f of the optical imaging lens, the total optical length TTL, and half ImgH of the diagonal length of the effective pixel area on the imaging surface S17 in example 11.

Watch 31

Flour mark

A4

A6

A8

A10

A12

A14

A16

A18

A20

S1

2.3420E-02

-1.9337E-02

1.1335E-02

-2.4667E-02

2.7801E-02

-2.1480E-02

1.0210E-02

-2.5180E-03

2.4608E-04

S2

-7.6394E-03

-7.6898E-02

9.0698E-02

-1.1691E-01

1.3632E-01

-1.0421E-01

4.7566E-02

-1.1774E-02

1.2189E-03

S3

5.1105E-02

-1.3954E-01

1.8880E-01

-2.4326E-01

2.8004E-01

-2.0824E-01

9.1023E-02

-2.1586E-02

2.1548E-03

S4

7.7309E-02

-4.7988E-01

1.0306E+00

-1.3950E+00

1.2657E+00

-7.6893E-01

2.9996E-01

-6.7718E-02

6.6993E-03

S5

1.2278E-01

-4.9181E-01

1.0555E+00

-1.4720E+00

1.3673E+00

-8.6360E-01

3.6567E-01

-9.3776E-02

1.0872E-02

S6

5.6246E-02

-1.3944E-01

3.1386E-01

-4.9789E-01

5.2584E-01

-3.7871E-01

1.8394E-01

-5.2779E-02

6.7256E-03

S7

-6.0889E-03

-8.1793E-02

-1.3736E-01

7.6367E-01

-1.3818E+00

1.3794E+00

-7.9378E-01

2.4717E-01

-3.2550E-02

S8

-3.8964E-03

4.9287E-02

-6.7793E-01

1.6939E+00

-2.3613E+00

2.0189E+00

-1.0176E+00

2.7543E-01

-3.0914E-02

S9

-6.4193E-02

1.7703E-01

-5.0072E-01

8.4319E-01

-1.0404E+00

8.6070E-01

-4.2553E-01

1.1270E-01

-1.2345E-02

S10

-2.4605E-01

2.3970E-01

-1.6234E-01

3.3714E-02

1.8473E-02

-1.2135E-02

3.2583E-03

-6.3507E-04

7.0842E-05

S11

2.6642E-02

-1.4934E-01

1.6884E-01

-1.3270E-01

6.8066E-02

-2.4192E-02

5.7831E-03

-7.9844E-04

4.6424E-05

S12

1.1950E-01

-2.6056E-01

2.2644E-01

-1.3043E-01

4.8327E-02

-1.0972E-02

1.4244E-03

-9.0793E-05

1.8034E-06

S13

1.7144E-01

-3.6330E-01

2.8808E-01

-1.1611E-01

2.7373E-02

-3.9117E-03

3.2986E-04

-1.4748E-05

2.5552E-07

S14

1.3684E-01

-2.2932E-01

1.3967E-01

-4.5043E-02

8.3927E-03

-8.9240E-04

4.6630E-05

-4.0966E-07

-4.0855E-08

Watch 32

Parameter(s)	f1(mm)	f2(mm)	f3(mm)	f4(mm)	f5(mm)
						Numerical value	9.08	4.14	-5.44	-1000.98	-15.49
Parameter(s)	f6(mm)	f7(mm)	f(mm)	TTL(mm)	ImgH(mm)
						Numerical value	4.17	-3.67	4.22	5.15	3.50

Watch 33

Fig. 22A shows on-axis chromatic aberration curves of an optical imaging lens of embodiment 11, which represent deviation of convergence focuses of light rays of different wavelengths after passing through the lens. Fig. 22B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging lens of example 11. Fig. 22C shows a distortion curve of the optical imaging lens of embodiment 11, which represents the distortion magnitude values in the case of different angles of view. Fig. 22D shows a chromatic aberration of magnification curve of the optical imaging lens of example 11, which represents a deviation of different image heights on the imaging surface after light passes through the lens. As can be seen from fig. 22A to 22D, the optical imaging lens according to embodiment 11 can achieve good imaging quality.

Example 12

An optical imaging lens according to embodiment 12 of the present application is described below with reference to fig. 23 to 24D. Fig. 23 is a schematic structural view showing an optical imaging lens according to embodiment 12 of the present application.

As shown in fig. 23, the optical imaging lens includes, in order from the object side to the imaging side along the optical axis, 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 seventh lens E7, and an imaging surface S17.

Table 34 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens of the optical imaging lens of example 12, wherein the unit of the radius of curvature and the thickness are both millimeters (mm). Table 35 shows the high-order term coefficients that can be used for each aspherical mirror surface in example 12, wherein each aspherical mirror surface type can be defined by formula (1) given in example 1 above. Table 36 shows the effective focal lengths f1 to f7 of the respective lenses, the total effective focal length f of the optical imaging lens, the total optical length TTL, and half ImgH of the diagonal length of the effective pixel area on the imaging surface S17 in example 12.

Watch 34

Flour mark

A4

A6

A8

A10

A12

A14

A16

A18

A20

S1

2.0549E-02

-1.9054E-02

4.2786E-03

-9.8036E-03

1.0267E-02

-8.6407E-03

4.8546E-03

-1.3769E-03

1.5008E-04

S2

2.0594E-02

-1.4103E-01

1.7657E-01

-1.9668E-01

1.7934E-01

-1.1173E-01

4.3437E-02

-9.4637E-03

8.8177E-04

S3

7.4423E-02

-1.5927E-01

1.9637E-01

-2.4166E-01

2.5592E-01

-1.7217E-01

6.7587E-02

-1.4339E-02

1.2684E-03

S4

8.4722E-02

-3.5773E-01

5.7619E-01

-5.9654E-01

4.3026E-01

-2.1885E-01

7.4924E-02

-1.5365E-02

1.4064E-03

S5

1.0720E-01

-3.1982E-01

5.1780E-01

-5.3956E-01

3.8241E-01

-2.0518E-01

8.6690E-02

-2.4230E-02

3.0709E-03

S6

2.5070E-02

-5.9618E-02

1.9156E-01

-4.0246E-01

5.6033E-01

-5.2876E-01

3.2045E-01

-1.1002E-01

1.6249E-02

S7

-9.0556E-02

2.7173E-01

-1.1562E+00

2.7213E+00

-3.8443E+00

3.4035E+00

-1.8354E+00

5.5017E-01

-7.0499E-02

S8

-1.8224E-01

7.5528E-01

-2.3068E+00

3.9768E+00

-4.3480E+00

3.0883E+00

-1.3557E+00

3.3022E-01

-3.4004E-02

S9

-1.8039E-01

6.7875E-01

-1.5029E+00

1.9862E+00

-1.7780E+00

1.0909E+00

-4.3132E-01

9.7682E-02

-9.5947E-03

S10

-3.2712E-01

5.1535E-01

-5.9398E-01

4.4413E-01

-2.2909E-01

8.0691E-02

-1.7325E-02

1.7905E-03

-4.3112E-05

S11

-3.6673E-02

-2.6895E-02

1.4055E-02

3.4805E-03

-1.4176E-02

8.1271E-03

-1.9399E-03

2.1300E-04

-9.1930E-06

S12

6.9139E-02

-2.0888E-01

1.8428E-01

-1.0430E-01

3.5470E-02

-6.4148E-03

3.9485E-04

3.8548E-05

-4.9999E-06

S13

1.7122E-01

-3.7564E-01

3.0124E-01

-1.2646E-01

3.1827E-02

-4.9712E-03

4.7154E-04

-2.4794E-05

5.5048E-07

S14

1.4131E-01

-2.3983E-01

1.4938E-01

-4.9516E-02

9.6657E-03

-1.1330E-03

7.6221E-05

-2.5256E-06

2.4688E-08

Watch 35

Parameter(s)	f1(mm)	f2(mm)	f3(mm)	f4(mm)	f5(mm)
						Numerical value	15.01	3.31	-4.84	-1000.98	-15.84
Parameter(s)	f6(mm)	f7(mm)	f(mm)	TTL(mm)	ImgH(mm)
						Numerical value	4.07	-4.11	4.02	5.15	3.33

Watch 36

Fig. 24A shows on-axis chromatic aberration curves of an optical imaging lens of embodiment 12, which represent deviation of convergence focuses of light rays of different wavelengths after passing through the lens. Fig. 24B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging lens of embodiment 12. Fig. 24C shows a distortion curve of the optical imaging lens of embodiment 12, which represents the distortion magnitude values in the case of different angles of view. Fig. 24D shows a chromatic aberration of magnification curve of the optical imaging lens of example 12, which represents the deviation of different image heights on the imaging surface after light passes through the lens. As can be seen from fig. 24A to 24D, the optical imaging lens according to embodiment 12 can achieve good imaging quality.

Example 13

An optical imaging lens according to embodiment 13 of the present application is described below with reference to fig. 25 to 26D. Fig. 25 shows a schematic structural diagram of an optical imaging lens according to embodiment 13 of the present application.

As shown in fig. 25, the optical imaging lens includes, in order from the object side to the imaging side along the optical axis, 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 seventh lens E7, and an imaging surface S17.

The third lens element E3 has negative power, and has a concave object-side surface S5, a concave image-side surface S6, and both the object-side surface S5 and the image-side surface S6 of the third lens element E3 are aspheric.

The fifth lens element E5 has negative power, and has a convex object-side surface S9, a concave image-side surface S10, and both the object-side surface S9 and the image-side surface S10 of the fifth lens element E5 are aspheric.

Table 37 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens of the optical imaging lens of example 13, wherein the units of the radius of curvature and the thickness are millimeters (mm). Table 38 shows the high-order term coefficients that can be used for each aspherical mirror surface in example 13, wherein each aspherical mirror surface type can be defined by the formula (1) given in example 1 above. Table 39 shows effective focal lengths f1 to f7 of the respective lenses, a total effective focal length f of the optical imaging lens, an optical total length TTL, and a half ImgH of a diagonal length of an effective pixel area on the imaging surface S17 in example 13.

Watch 37

Flour mark

A4

A6

A8

A10

A12

A14

A16

A18

A20

S1

1.4564E-02

-2.7031E-02

-1.5070E-02

5.9387E-02

-1.0092E-01

9.6721E-02

-5.1566E-02

1.4482E-02

-1.6948E-03

S2

1.9481E-03

-1.3622E-01

1.9596E-01

-2.3579E-01

2.4832E-01

-1.8376E-01

8.6385E-02

-2.3246E-02

2.7074E-03

S3

6.6151E-02

-1.5438E-01

2.0215E-01

-2.4907E-01

2.8234E-01

-2.0529E-01

8.3034E-02

-1.6346E-02

9.8826E-04

S4

2.8238E-02

-3.4850E-01

8.3475E-01

-1.2456E+00

1.2590E+00

-8.5286E-01

3.6772E-01

-9.0829E-02

9.7241E-03

S5

1.4296E-01

-5.4172E-01

1.2751E+00

-1.9659E+00

2.0654E+00

-1.4870E+00

6.9849E-01

-1.9096E-01

2.2957E-02

S6

4.9651E-02

-1.8507E-01

5.0569E-01

-8.8251E-01

1.0649E+00

-9.1080E-01

5.2350E-01

-1.7805E-01

2.6708E-02

S7

-3.9605E-02

-6.8749E-02

-7.5634E-02

6.8518E-01

-1.4374E+00

1.6552E+00

-1.0929E+00

3.8729E-01

-5.7728E-02

S8

2.7179E-02

-3.2705E-01

6.4079E-01

-1.0984E+00

1.4433E+00

-1.2530E+00

6.8707E-01

-2.1392E-01

2.8321E-02

S9

5.5931E-03

-1.0853E-01

1.5175E-01

-1.8744E-01

7.3278E-02

8.4564E-02

-1.0548E-01

4.3908E-02

-6.6391E-03

S10

-2.0146E-01

8.5603E-02

7.6981E-02

-2.0923E-01

1.8789E-01

-8.9660E-02

2.3597E-02

-3.0437E-03

1.2547E-04

S11

4.6247E-02

-1.5928E-01

1.5912E-01

-1.1328E-01

6.0517E-02

-2.3524E-02

5.8682E-03

-8.0199E-04

4.4954E-05

S12

1.5339E-01

-2.2412E-01

1.2110E-01

-2.4458E-02

-4.8180E-03

3.6954E-03

-8.2668E-04

8.6828E-05

-3.6619E-06

S13

2.2145E-01

-4.6091E-01

3.9214E-01

-1.7867E-01

4.9373E-02

-8.5697E-03

9.1690E-04

-5.5441E-05

1.4526E-06

S14

1.7721E-01

-3.0212E-01

2.0758E-01

-7.9895E-02

1.8872E-02

-2.7992E-03

2.5432E-04

-1.2924E-05

2.8087E-07

Watch 38

Parameter(s)	f1(mm)	f2(mm)	f3(mm)	f4(mm)	f5(mm)
						Numerical value	34.23	2.83	-4.45	-1000.98	-12.48
Parameter(s)	f6(mm)	f7(mm)	f(mm)	TTL(mm)	ImgH(mm)
						Numerical value	3.42	-3.39	3.95	5.15	3.26

Watch 39

Fig. 26A shows on-axis chromatic aberration curves of an optical imaging lens of embodiment 13, which represent deviation of convergence focuses of light rays of different wavelengths after passing through the lens. Fig. 26B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging lens of example 13. Fig. 26C shows a distortion curve of the optical imaging lens of embodiment 13, which represents the distortion magnitude values in the case of different angles of view. Fig. 26D shows a chromatic aberration of magnification curve of the optical imaging lens of example 13, which represents a deviation of different image heights on the imaging surface after light passes through the lens. As can be seen from fig. 26A to 26D, the optical imaging lens according to embodiment 13 can achieve good imaging quality.

Example 14

An optical imaging lens according to embodiment 14 of the present application is described below with reference to fig. 27 to 28D. Fig. 27 is a schematic structural view showing an optical imaging lens according to embodiment 14 of the present application.

As shown in fig. 27, the optical imaging lens includes, in order from the object side to the imaging side along the optical axis, 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 seventh lens E7, and an imaging surface S17.

The fifth lens element E5 has negative power, and has a convex object-side surface S9 and a concave image-side surface S10, and the object-side surface S9 and the image-side surface S10 of the fifth lens element E5 are aspheric.

The seventh lens element E7 has negative power, and has a concave object-side surface S13, a concave image-side surface S14, and both the object-side surface S13 and the image-side surface S14 of the seventh lens element E7 are aspheric.

Table 40 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens of the optical imaging lens of example 14, wherein the unit of the radius of curvature and the thickness are both millimeters (mm). Table 41 shows high-order term coefficients that can be used for each aspherical mirror surface in example 14, wherein each aspherical mirror surface type can be defined by formula (1) given in example 1 above. Table 42 shows the effective focal lengths f1 to f7 of the respective lenses, the total effective focal length f of the optical imaging lens, the total optical length TTL, and half ImgH of the diagonal length of the effective pixel area on the imaging surface S17 in example 14.

Watch 40

Flour mark

A4

A6

A8

A10

A12

A14

A16

A18

A20

S1

1.3859E-02

-3.2042E-02

-3.3835E-03

3.2495E-02

-5.9820E-02

5.8141E-02

-2.9968E-02

7.8865E-03

-8.4772E-04

S2

1.9809E-03

-1.5364E-01

2.3023E-01

-2.8186E-01

2.9178E-01

-2.1132E-01

9.7146E-02

-2.5451E-02

2.8794E-03

S3

6.6840E-02

-1.5340E-01

2.0422E-01

-2.5703E-01

2.9292E-01

-2.1651E-01

9.1810E-02

-2.0214E-02

1.7087E-03

S4

2.9128E-02

-3.3196E-01

7.7041E-01

-1.1103E+00

1.0765E+00

-6.9541E-01

2.8468E-01

-6.6551E-02

6.7313E-03

S5

1.5497E-01

-5.7363E-01

1.3348E+00

-2.0436E+00

2.1299E+00

-1.5124E+00

6.9579E-01

-1.8514E-01

2.1544E-02

S6

4.6171E-02

-1.8874E-01

5.3140E-01

-9.2731E-01

1.1088E+00

-9.3085E-01

5.2164E-01

-1.7251E-01

2.5193E-02

S7

-4.1615E-02

-7.4281E-02

-9.2457E-03

4.6326E-01

-1.0236E+00

1.1838E+00

-7.7023E-01

2.6582E-01

-3.8336E-02

S8

2.0552E-02

-3.1383E-01

6.2390E-01

-1.0620E+00

1.3672E+00

-1.1605E+00

6.2261E-01

-1.8988E-01

2.4651E-02

S9

4.1290E-03

-1.2574E-01

2.2620E-01

-3.3512E-01

2.6591E-01

-8.1888E-02

-1.5836E-02

1.6986E-02

-3.2221E-03

S10

-1.9582E-01

3.8377E-02

1.7617E-01

-3.2930E-01

2.8488E-01

-1.4287E-01

4.2463E-02

-6.8818E-03

4.6007E-04

S11

5.2425E-02

-1.7899E-01

1.8677E-01

-1.3993E-01

7.8801E-02

-3.1893E-02

8.1849E-03

-1.1455E-03

6.5731E-05

S12

1.7225E-01

-2.3270E-01

1.1075E-01

-6.8321E-03

-1.6048E-02

7.5021E-03

-1.5526E-03

1.6081E-04

-6.8193E-06

S13

2.1281E-01

-4.6415E-01

4.0475E-01

-1.8932E-01

5.3890E-02

-9.6621E-03

1.0700E-03

-6.7069E-05

1.8238E-06

S14

1.6286E-01

-2.9755E-01

2.1273E-01

-8.5043E-02

2.0865E-02

-3.2152E-03

3.0363E-04

-1.6054E-05

3.6369E-07

Table 41

Watch 42

Fig. 28A shows an on-axis chromatic aberration curve of the optical imaging lens of example 14, which represents the deviation of the convergent focal points of light rays of different wavelengths after passing through the lens. Fig. 28B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging lens of example 14. Fig. 28C shows a distortion curve of the optical imaging lens of example 14, which represents the distortion magnitude values in the case of different angles of view. Fig. 28D shows a chromatic aberration of magnification curve of the optical imaging lens of example 14, which represents the deviation of different image heights on the imaging surface after light passes through the lens. As can be seen from fig. 28A to 28D, the optical imaging lens according to embodiment 14 can achieve good imaging quality.

Example 15

An optical imaging lens according to embodiment 15 of the present application is described below with reference to fig. 29 to 30D. Fig. 29 is a schematic structural view showing an optical imaging lens according to embodiment 15 of the present application.

As shown in fig. 29, the optical imaging lens includes, in order from the object side to the imaging side along the optical axis, 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 seventh lens E7, and an imaging surface S17.

Table 43 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens of the optical imaging lens of example 15, where the units of the radius of curvature and the thickness are both millimeters (mm). Table 44 shows high-order term coefficients that can be used for each aspherical mirror surface in example 15, wherein each aspherical mirror surface type can be defined by formula (1) given in example 1 above. Table 45 shows effective focal lengths f1 to f7 of the respective lenses, a total effective focal length f of the optical imaging lens, an optical total length TTL, and a half ImgH of a diagonal length of an effective pixel area on the imaging surface S17 in example 15.

Watch 43

Flour mark

A4

A6

A8

A10

A12

A14

A16

A18

A20

S1

1.3664E-02

-2.7524E-02

-1.2444E-02

5.1285E-02

-8.6195E-02

7.9607E-02

-4.0288E-02

1.0650E-02

-1.1655E-03

S2

-9.1177E-04

-1.4615E-01

2.1417E-01

-2.6084E-01

2.7304E-01

-2.0093E-01

9.3633E-02

-2.4737E-02

2.8077E-03

S3

6.7556E-02

-1.6496E-01

2.2645E-01

-2.9476E-01

3.4146E-01

-2.5616E-01

1.1133E-01

-2.5566E-02

2.3431E-03

S4

3.3019E-02

-3.3989E-01

7.8711E-01

-1.1238E+00

1.0714E+00

-6.7703E-01

2.7026E-01

-6.1482E-02

6.0440E-03

S5

1.5748E-01

-5.8295E-01

1.3731E+00

-2.1401E+00

2.2640E+00

-1.6253E+00

7.5263E-01

-2.0062E-01

2.3254E-02

S6

4.6126E-02

-1.9764E-01

5.8036E-01

-1.0575E+00

1.2869E+00

-1.0653E+00

5.7321E-01

-1.7900E-01

2.4470E-02

S7

-4.5348E-02

-8.1668E-02

6.4515E-03

4.4949E-01

-1.0251E+00

1.1975E+00

-7.7909E-01

2.6667E-01

-3.7817E-02

S8

1.3462E-02

-3.0043E-01

5.6376E-01

-9.1354E-01

1.1428E+00

-9.4791E-01

5.0253E-01

-1.5323E-01

2.0002E-02

S9

6.0298E-03

-1.5264E-01

3.1180E-01

-4.5922E-01

3.6312E-01

-1.1817E-01

-1.5560E-02

2.0968E-02

-4.0754E-03

S10

-1.9153E-01

4.3178E-04

2.6276E-01

-4.2507E-01

3.3852E-01

-1.5392E-01

3.9272E-02

-4.8048E-03

1.5752E-04

S11

5.8702E-02

-2.0385E-01

2.3032E-01

-1.7990E-01

1.0084E-01

-3.9700E-02

9.8899E-03

-1.3458E-03

7.4919E-05

S12

1.7742E-01

-2.4110E-01

1.2220E-01

-1.2477E-02

-1.5626E-02

8.0310E-03

-1.7478E-03

1.8857E-04

-8.3031E-06

S13

2.0068E-01

-4.5812E-01

4.1061E-01

-1.9740E-01

5.7817E-02

-1.0667E-02

1.2149E-03

-7.8216E-05

2.1813E-06

S14

1.5228E-01

-2.9429E-01

2.1874E-01

-9.0754E-02

2.3067E-02

-3.6749E-03

3.5806E-04

-1.9491E-05

4.5351E-07

Watch 44

Parameter(s)	f1(mm)	f2(mm)	f3(mm)	f4(mm)	f5(mm)
						Numerical value	49.51	2.72	-4.29	-930.34	-12.54
Parameter(s)	f6(mm)	f7(mm)	f(mm)	TTL(mm)	ImgH(mm)
						Numerical value	3.19	-3.31	3.82	5.09	3.16

TABLE 45

Fig. 30A shows an on-axis chromatic aberration curve of the optical imaging lens of example 15, which represents the deviation of the convergent focal points of light rays of different wavelengths after passing through the lens. Fig. 30B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging lens of example 15. Fig. 30C shows a distortion curve of the optical imaging lens of embodiment 15, which represents the distortion magnitude values in the case of different angles of view. Fig. 30D shows a chromatic aberration of magnification curve of the optical imaging lens of example 15, which represents a deviation of different image heights on the imaging surface after light passes through the lens. As can be seen from fig. 30A to 30D, the optical imaging lens according to embodiment 15 can achieve good imaging quality.

In summary, examples 1 to 15 each satisfy the relationship shown in table 46.

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 apparatus such as a digital camera, or may be an imaging module integrated on a mobile electronic apparatus such as a mobile phone. The imaging device is equipped with the optical imaging lens described above.

The foregoing description is only exemplary of the preferred embodiments of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims

1. The optical imaging lens sequentially comprises from an object side to an image side along an optical axis: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens having optical power,

the first lens, the second lens and the sixth lens each have positive optical power;

the third lens, the fifth lens and the seventh lens each have a negative optical power;

the image side surface of the second lens and the image side surface of the seventh lens are convex surfaces;

the total effective focal length f of the optical imaging lens and the entrance pupil diameter EPD of the optical imaging lens meet the condition that f/EPD is less than or equal to 1.90;

a separation distance T67 of the sixth lens and the seventh lens on the optical axis and a separation distance T56 of the fifth lens and the sixth lens on the optical axis satisfy 3 ≦ T67/T56 ≦ 7; and

the number of lenses having power in the optical imaging lens is seven.

2. The optical imaging lens of claim 1, wherein the object side surface of the seventh lens is concave, and the radius of curvature R13 of the object side surface and the total effective focal length f of the optical imaging lens satisfy-3 ≦ f/R13 ≦ -1.5.

3. The optical imaging lens of claim 1, wherein the radius of curvature R1 of the object-side surface of the first lens and the radius of curvature R2 of the image-side surface of the first lens satisfy-120 ≦ (R1+ R2)/(R1-R2) ≦ 0.

4. The optical imaging lens of claim 3, wherein the radius of curvature R1 of the object-side surface of the first lens and the radius of curvature R6 of the image-side surface of the third lens satisfy-11 ≦ (R1+ R6)/(R1-R6) ≦ -2.5.

5. The optical imaging lens of claim 1, characterized in that the radius of curvature R9 of the object-side surface of the fifth lens and the radius of curvature R10 of the image-side surface of the fifth lens satisfy | R9+ R10|/| R9-R10| ≦ 3.

6. The optical imaging lens of claim 1, characterized in that 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 1 ≦ R11+ R12|/| R11-R12| ≦ 2.5.

7. The optical imaging lens of claim 1, characterized in that the effective focal length f5 of the fifth lens and the effective focal length f1 of the first lens satisfy-2 ≦ f5/f1 ≦ 0.

8. The optical imaging lens according to claim 1, characterized in that an effective focal length f3 of the third lens and an effective focal length f6 of the sixth lens satisfy-2 ≦ f3/f6 ≦ -1.

9. The optical imaging lens of claim 1, wherein the total effective focal length f of the optical imaging lens and the combined focal length f67 of the sixth lens and the seventh lens satisfy f/f67 ≦ 0.7.

10. The optical imaging lens according to claim 1, characterized in that a combined focal length f67 of the sixth lens and the seventh lens and a combined focal length f123 of the first lens, the second lens and the third lens satisfy 1 ≦ f67/f123 ≦ 5.

11. The optical imaging lens according to any one of claims 1 to 10, characterized in that a separation distance T34 of the third lens and the fourth lens on the optical axis satisfies 1.5 ≦ T34/T12 ≦ 4 with a separation distance T12 of the first lens and the second lens on the optical axis.

12. The optical imaging lens according to any one of claims 1 to 10, wherein the abbe number V2 of the second lens and the abbe number V3 of the third lens satisfy | V2-V3| ≦ 50.

13. The optical imaging lens sequentially comprises from an object side to an image side along an optical axis: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens having optical power,

the first lens, the second lens and the sixth lens each have a positive optical power;

the third lens, the fourth lens, the fifth lens, and the seventh lens each have a negative optical power;

the image side surface of the second lens is a convex surface;

the image side surfaces of the fifth lens and the sixth lens are both concave surfaces;

the total effective focal length f of the optical imaging lens and the entrance pupil diameter EPD of the optical imaging lens meet the condition that f/EPD is less than or equal to 1.70;

the number of lenses having power in the optical imaging lens is seven.

14. The optical imaging lens of claim 13, wherein f/EPD ≦ 1.50 is satisfied.

15. The optical imaging lens of claim 13, wherein the radius of curvature R1 of the object-side surface of the first lens and the radius of curvature R2 of the image-side surface of the first lens satisfy-120 ≦ (R1+ R2)/(R1-R2) ≦ 0.

16. The optical imaging lens according to claim 13, wherein an effective focal length f5 of the fifth lens and an effective focal length f1 of the first lens satisfy-2 ≦ f5/f1 ≦ 0.

17. The optical imaging lens of claim 13, characterized in that an effective focal length f3 of the third lens and an effective focal length f6 of the sixth lens satisfy-2 ≦ f3/f6 ≦ -1.

18. The optical imaging lens of claim 13, wherein the radius of curvature R1 of the object-side surface of the first lens and the radius of curvature R6 of the image-side surface of the third lens satisfy-11 ≦ (R1+ R6)/(R1-R6) ≦ -2.5.

19. The optical imaging lens of claim 13, wherein a radius of curvature R11 of the object-side surface of the sixth lens and a radius of curvature R12 of the image-side surface of the sixth lens satisfy 1 ≦ R11+ R12|/| R11-R12| ≦ 2.5.

20. An optical imaging lens according to claim 13 or 14, characterized in that the radius of curvature R9 of the object-side surface of the fifth lens and the radius of curvature R10 of the image-side surface of the fifth lens satisfy | R9+ R10|/| R9-R10| ≦ 3.

21. The optical imaging lens of claim 13, wherein the combined focal power of the sixth lens and the seventh lens is positive focal power, and the combined focal length f67 and the total effective focal length f of the optical imaging lens satisfy f/f67 ≦ 0.7.

22. The optical imaging lens according to claim 13 or 21, characterized in that a combined focal length f67 of the sixth lens and the seventh lens and a combined focal length f123 of the first lens, the second lens and the third lens satisfy 1 ≦ f67/f123 ≦ 5.

23. The optical imaging lens according to claim 13, wherein a separation distance T34 on the optical axis between the third lens and the fourth lens and a separation distance T12 on the optical axis between the first lens and the second lens satisfy 1.5 ≦ T34/T12 ≦ 4.

24. The optical imaging lens of claim 13, wherein the abbe number V2 of the second lens and the abbe number V3 of the third lens satisfy | V2-V3| ≦ 50.

25. The optical imaging lens system of claim 13 or 14, wherein the seventh lens element has a concave object-side surface, and a radius of curvature R13 of the object-side surface thereof and a total effective focal length f of the optical imaging lens system satisfy-3 ≦ f/R13 ≦ -1.5.

26. The optical imaging lens sequentially comprises from an object side to an image side along an optical axis: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens having optical power,

the third lens, the fourth lens, the fifth lens and the seventh lens each have a negative power;

the image side surface of the second lens is a convex surface;

the object side surface of the fifth lens is a concave surface;

the image side surface of the sixth lens is a concave surface;

the total effective focal length f of the optical imaging lens and the entrance pupil diameter EPD of the optical imaging lens meet the condition that f/EPD is less than or equal to 1.50;

the number of lenses having power in the optical imaging lens is seven.

27. The optical imaging lens of claim 26, wherein an effective focal length f5 of the fifth lens and an effective focal length f1 of the first lens satisfy-2 ≦ f5/f1 ≦ 0.

28. The optical imaging lens according to claim 26 or 27, characterized in that the effective focal length f3 of the third lens and the effective focal length f6 of the sixth lens satisfy-2 ≦ f3/f6 ≦ -1.

29. The optical imaging lens of claim 26, wherein a combined focal length f67 of the sixth lens and the seventh lens and a total effective focal length f of the optical imaging lens satisfy f/f67 ≦ 0.7.

30. The optical imaging lens according to claim 26 or 29, characterized in that a combined focal length f67 of the sixth lens and the seventh lens and a combined focal length f123 of the first lens, the second lens and the third lens satisfy 1 ≦ f67/f123 ≦ 5.

31. The optical imaging lens of claim 26, wherein a separation distance T34 on the optical axis between the third lens and the fourth lens and a separation distance T12 on the optical axis between the first lens and the second lens satisfy 1.5 ≦ T34/T12 ≦ 4.

32. The optical imaging lens of claim 26, wherein the abbe number V2 of the second lens and the abbe number V3 of the third lens satisfy | V2-V3| ≦ 50.

33. The optical imaging lens of claim 26, wherein the radius of curvature R1 of the object-side surface of the first lens and the radius of curvature R2 of the image-side surface of the first lens satisfy-120 ≦ (R1+ R2)/(R1-R2) ≦ 0.

34. An optical imaging lens as claimed in claim 33, wherein the radius of curvature R1 of the object-side surface of the first lens and the radius of curvature R6 of the image-side surface of the third lens satisfy-11 ≦ (R1+ R6)/(R1-R6) ≦ -2.5.

35. The optical imaging lens of claim 34, wherein the radius of curvature R9 of the object-side surface of the fifth lens and the radius of curvature R10 of the image-side surface of the fifth lens satisfy | R9+ R10|/| R9-R10| ≦ 3.

36. The optical imaging lens of claim 35, 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 1 ≦ R11+ R12|/| R11-R12| ≦ 2.5.

37. The optical imaging lens of claim 36, wherein the seventh lens element has a concave object-side surface, and a radius of curvature R13 of the object-side surface and a total effective focal length f of the optical imaging lens satisfy-3 ≦ f/R13 ≦ -1.5.