CN107621681B

CN107621681B - Optical imaging lens

Info

Publication number: CN107621681B
Application number: CN201710834755.5A
Authority: CN
Inventors: 吕赛锋
Original assignee: Zhejiang Sunny Optics Co Ltd
Current assignee: Zhejiang Sunny Optics Co Ltd
Priority date: 2017-09-15
Filing date: 2017-09-15
Publication date: 2023-05-26
Anticipated expiration: 2037-09-15
Also published as: CN107621681A

Abstract

The application discloses optical imaging lens, this optical imaging lens includes in order from the object side to the image side along the optical axis: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens. The first lens, the second lens and the sixth lens all have positive focal power; the third lens and the seventh lens both have negative optical power; the fourth lens and the fifth lens have optical power; the object side surfaces of the first lens and the second lens are convex; the image side surface of the third lens is a concave surface; 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 meet the requirement that |f/R13| is not less than 2.5.

Description

Optical imaging lens

Technical Field

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

Background

Along with the rapid updating of portable electronic products, higher and higher requirements are put forward for the imaging lens used in a matched mode. The miniaturization trend of portable electronic products puts demands on ultra-thin miniaturization of imaging lenses. Meanwhile, with the popularization of applications of portable electronic products such as mobile phones and tablet computers, the imaging lens used in a matched manner is required to have good imaging quality under the condition of sufficient sunlight or light, and also required to have better imaging quality under the condition of insufficient light such as overcast days and dusk. The imaging lens has corresponding requirements on the aspects of high pixels, high resolution, brightness of an imaging surface, clear aperture and the like.

Disclosure of Invention

The present application provides an optical imaging lens, e.g., a large aperture imaging lens, applicable to portable electronic products that may at least address or partially address at least one of the above-mentioned shortcomings of the prior art.

In one aspect, the present application provides an optical imaging lens sequentially including, 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. The first lens, the second lens, and the sixth lens may each have positive optical power; the third lens and the seventh lens may each have negative optical power; the fourth lens and the fifth lens may each have optical power; the object side surfaces of the first lens and the second lens can be convex; the image side surface of the third lens can be a concave surface; 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 meet the requirement that |f/R13| is not less than 2.5.

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 may satisfy f/EPD.ltoreq.1.95.

In one embodiment, an on-axis distance TTL from an object side surface of the first lens to an imaging surface of the optical imaging lens and a half of a diagonal length ImgH of an effective pixel area on the imaging surface of the optical imaging lens can satisfy TTL/ImgH less than or equal to 1.6.

In one embodiment, the effective focal length f6 of the sixth lens and the total effective focal length f of the optical imaging lens may satisfy f/f6 > 0.6.

In one embodiment, the effective focal length f7 of the seventh lens and the total effective focal length f of the optical imaging lens may satisfy-2 < f/f7 < 0.

In one embodiment, the effective focal length f1 of the first lens, the effective focal length f2 of the second lens, and the effective focal length f3 of the third lens may satisfy-1.5 < f 3/(f1+f2) < 0.

In one embodiment, the effective focal length f1 of the first lens and the total effective focal length f of the optical imaging lens can satisfy 0 < f/f 1.ltoreq.1.2.

In one embodiment, the total effective focal length f of the optical imaging lens and the combined focal length f45 of the fourth lens and the fifth lens may satisfy |f/f45|+.0.5.

In one embodiment, the combined focal power of the second lens and the third lens is positive, and the sum Σat of the combined focal length f23 and the spacing distance between any two adjacent lenses of the first lens to the seventh lens on the optical axis can satisfy 3.5 < f23/Σat < 14.5.

In one embodiment, the sum Σat of the center thickness Σct of the first lens element to the seventh lens element on the optical axis and the distance between any two adjacent lens elements of the first lens element to the seventh lens element on the optical axis may satisfy 1 < Σct/Σat < 2.5.

In one embodiment, the spacing distance T34 of the third lens and the fourth lens on the optical axis and the spacing distance T67 of the sixth lens and the seventh lens on the optical axis can satisfy 0 < T34/T67.ltoreq.1.5.

In one embodiment, the radius of curvature R5 of the third lens object-side surface and the radius of curvature R6 of the third lens image-side surface may satisfy |R5+R6|/|R5-R6| < 3.

In one embodiment, the radius of curvature R6 of the image side of the third lens element and the radius of curvature R3 of the object side of the second lens element may satisfy 1 < R6/R3 < 3.

In one embodiment, the dispersion coefficient V4 of the fourth lens, the dispersion coefficient V5 of the fifth lens, and the dispersion coefficient V6 of the sixth lens may satisfy (V4+V5+V6)/4.ltoreq.45.

On the other hand, the present application also provides an optical imaging lens, which sequentially includes, from an object side to an image side along an optical axis: a first lens having optical power, the object-side surface of which may be convex; a second lens having positive optical power, the object-side surface of which may be convex; a third lens having negative optical power, the image-side surface of which may be concave; a fourth lens having optical power; a fifth lens having optical power; a sixth lens having positive optical power; a seventh lens having negative optical power. The total effective focal length f of the optical imaging lens and the combined focal length f45 of the fourth lens and the fifth lens can meet the requirement that the absolute value of f/f45 is less than or equal to 0.5.

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

On the other hand, the present application also provides an optical imaging lens, which sequentially includes, 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. The first lens may have positive optical power, and an object side surface thereof may be convex; the second lens may have positive optical power, and an object side surface thereof may be convex; the third lens may have negative optical power, and an image side surface thereof may be concave; at least one of the fourth lens and the fifth lens may have positive optical power; the sixth lens may have positive optical power; the seventh lens may have negative optical power; the total effective focal length f of the optical imaging lens and the curvature radius R9 of the object side surface of the fifth lens can meet the requirement that |f/R9| < 1.5.

In still another aspect, the present application further provides an optical imaging lens, including, in order 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. The first lens may have positive optical power, and an object side surface thereof may be convex; the second lens can have positive focal power, and the object side surface of the second lens is a convex surface; the third lens can have negative focal power, and the image side surface of the third lens is concave; the fourth lens has positive focal power or negative focal power; the fifth lens has positive optical power or negative optical power; the sixth lens may have positive optical power; the seventh lens may have negative optical power. The combined focal power of the second lens and the third lens is positive focal power, and the sum ΣAT of the combined focal length f23 and the interval distance between any two adjacent lenses in the first lens to the seventh lens on the optical axis can meet the conditions that f23/ΣAT is more than 3.5 and less than 14.5.

The optical imaging system has the advantages of large aperture, enhanced illumination of an imaging surface and improved imaging effect under the condition of insufficient light rays by reasonably distributing the focal power, the surface shape, the center thickness of each lens, the axial spacing between each lens and the like of a plurality of (e.g., seven) lenses. Meanwhile, the optical imaging lens with the configuration has at least one beneficial effect of ultra-thin, miniaturization, large aperture, low sensitivity, good processability, high 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, taken in conjunction with the accompanying drawings. In the drawings:

fig. 1 shows a schematic configuration diagram 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 astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the optical imaging lens of embodiment 1;

fig. 3 shows a schematic structural view of an optical imaging lens according to embodiment 2 of the present application;

fig. 4A to 4D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the optical imaging lens of embodiment 2;

Fig. 5 shows a schematic structural view of an optical imaging lens according to embodiment 3 of the present application;

fig. 6A to 6D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the optical imaging lens of embodiment 3;

fig. 7 shows a schematic structural diagram of 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 magnification chromatic aberration curve, respectively, of the optical imaging lens of embodiment 4;

fig. 9 shows a schematic structural view of an optical imaging lens according to embodiment 5 of the present application;

fig. 10A to 10D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the optical imaging lens of embodiment 5;

fig. 11 shows a schematic structural view of 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 magnification chromatic aberration curve, respectively, of the optical imaging lens of embodiment 6;

fig. 13 shows a schematic structural view of 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 magnification chromatic aberration curve, respectively, of the optical imaging lens of embodiment 7;

Fig. 15 shows a schematic structural view of 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 magnification chromatic aberration curve, respectively, of the optical imaging lens of embodiment 8;

fig. 17 shows a schematic structural diagram of an optical imaging lens according to embodiment 9 of the present application;

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

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

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

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

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

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

fig. 24A to 24D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the optical imaging lens of embodiment 12;

Fig. 25 shows a schematic structural view of an optical imaging lens according to embodiment 13 of the present application;

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

fig. 27 shows a schematic structural diagram of an optical imaging lens according to embodiment 14 of the present application;

fig. 28A to 28D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the optical imaging lens of embodiment 14.

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 these detailed description are merely illustrative of exemplary embodiments of the application and are not intended to limit the scope of the 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 the present specification, the expressions of first, second, third, etc. are only used to distinguish one feature from another feature, and do not represent any limitation on the feature. Accordingly, a first lens discussed below may also be referred to as a second lens or a third lens without departing from the teachings of the present application.

In the drawings, the thickness, size, and shape of the lenses have been slightly exaggerated for convenience of explanation. In particular, the spherical or aspherical shape shown in the drawings is shown by way of example. That is, the shape of the spherical or aspherical surface is not limited to the shape of the spherical or aspherical surface shown in the drawings. The figures are merely examples and are 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, then 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 referred to as the object side surface, and the surface of each lens closest to the imaging surface is referred to as the image side surface.

It will be further understood that the terms "comprises," "comprising," "includes," "including," "having," "containing," 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. Furthermore, when a statement such as "at least one of the following" appears after a list of features that are listed, the entire listed feature is modified instead of modifying a separate element in the list. Furthermore, when describing embodiments of the present application, use of "may" means "one or more embodiments of the present application. Also, the term "exemplary" is intended to refer to an example or illustration.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

The features, principles, and other aspects of the present application are described in detail below.

The optical imaging lens according to the exemplary embodiment of the present application includes, for example, seven lenses having optical power, 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 first lens has positive focal power or negative focal power, and the object side surface of the first lens can be a convex surface; the second lens may have positive optical power, and an object side surface thereof may be convex; the third lens may have negative optical power, and an image side surface thereof may be concave; the fourth lens, the fifth lens and the sixth lens all have positive focal power or negative focal power; the seventh lens has negative optical power.

In an exemplary embodiment, the first lens may have positive optical power, and an image side surface thereof may be concave.

In an exemplary embodiment, the image side of the second lens may be concave.

In an exemplary embodiment, the fourth lens may have positive optical power.

In an exemplary embodiment, the object side surface of the fifth lens may be concave.

In an exemplary embodiment, the sixth lens may have the entire power, and the object-side surface thereof may be convex.

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 less than or equal to 1.95, more specifically, f and EPD can further satisfy f/EPD less than or equal to 1.49 less than or equal to 1.90. 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 f-number FNO is reduced, so that the image surface brightness can be effectively improved, and the lens can better meet shooting requirements when light is insufficient, such as overcast days, dusk and the like. The lens is configured to meet the condition that f/EPD is less than or equal to 1.95, so that the lens has the advantage of a large aperture in the process of increasing the light quantity, the illumination of an imaging surface is enhanced, and the imaging effect of the lens in a dark environment is improved.

The dispersion coefficient V4 of the fourth lens, the dispersion coefficient V5 of the fifth lens, and the dispersion coefficient V6 of the sixth lens may satisfy (V4+V5+V6)/4.ltoreq.45, and more specifically, V4, V5, and V6 may further satisfy (V4+V5+V6)/4.ltoreq. 33.15. Through the reasonable selection of the materials of each lens, the purpose of correcting chromatic aberration of the lens is realized.

The first lens may have positive optical power. The total effective focal length f of the optical imaging lens and the effective focal length f1 of the first lens can satisfy 0 < f/f 1.ltoreq.1.2, more specifically, f and f1 can further satisfy 0.07.ltoreq.f/f 1.ltoreq.1.07. In an optical imaging system with a large aperture, adjusting the optical power of the first lens is beneficial to improving the deflection angle of incident light and reducing aberration, such as spherical aberration.

The effective focal length f1 of the first lens, the effective focal length f2 of the second lens and the effective focal length f3 of the third lens can satisfy-1.5 < f 3/(f1+f2) < 0, more specifically, f1, f2 and f3 can further satisfy-1.25 < f 3/(f1+f2) < 0.13. By reasonably distributing the focal power of each lens, the high-grade spherical aberration can be effectively reduced, the sensitivity of the central visual field can be reduced, and the chromatic aberration of the optical imaging system can be effectively corrected.

The total effective focal length f of the optical imaging lens and the combined focal length f45 of the fourth lens and the fifth lens may satisfy |f45|+.0.5, more specifically, f and f45 may further satisfy 0.07+.f/f45|+.0.41. Meets the condition that the f/f45 is less than or equal to 0.5, is favorable for slowing down the deflection angle of light, improving the high-grade astigmatism and reducing the sensitivity of the system.

The sixth lens may have positive optical power. The total effective focal length f of the optical imaging lens and the effective focal length f6 of the sixth lens can satisfy f/f6 > 0.6, and more specifically, f and f6 can further satisfy 0.69.ltoreq.f6.ltoreq.1.48. The focal power of the sixth lens is reasonably distributed, so that the imaging quality of the lens is improved.

The seventh lens may have negative optical power. The total effective focal length f of the optical imaging lens and the effective focal length f7 of the seventh lens can satisfy-2 < f/f7 < 0, more specifically, f and f7 can further satisfy-1.81.ltoreq.f/f 7.ltoreq.0.72. And the focal power of the seventh lens is reasonably distributed, so that astigmatism is corrected, distortion is improved, and the angle of the principal ray of the chip is matched.

The radius of curvature R6 of the image side surface of the third lens element and the radius of curvature R3 of the object side surface of the second lens element may satisfy 1 < R6/R3 < 3, and more particularly, R6 and R3 may further satisfy 1.14.ltoreq.R6/R3.ltoreq.2.58. The ratio of the curvature radius R6 of the image side surface of the third lens of the second lens to the curvature radius R3 of the object side surface of the second lens is reasonably controlled, so that the spherical aberration can be effectively improved; meanwhile, the shape of the object side surface of the second lens and the shape of the image side surface of the third lens are also beneficial to determining, and the processability of the lens is ensured.

The radius of curvature R5 of the object-side surface of the third lens element and the radius of curvature R6 of the image-side surface of the third lens element may satisfy |R5+R6|/|R5-R6| < 3, and more specifically, R5 and R6 may further satisfy 0.08. Ltoreq|R5+R6|/|R5-R6|. Ltoreq.2.64. Through reasonable control of the curvature radius of the object side surface and the image side surface of the third lens, the third lens can not only effectively improve the high-grade spherical aberration of the system, but also simultaneously take on the function of correcting chromatic aberration.

The total effective focal length f of the optical imaging lens and the curvature radius R9 of the object side surface of the fifth lens can satisfy |f/R9| < 1.5, more specifically, f and R9 can further satisfy 0.30|f/R9| < 1.03. Through reasonable control of the curvature radius R9 of the object side surface of the fifth lens, the trend of light rays on the fifth lens can be effectively improved, and the relative illuminance of the lens can be improved.

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 meet the requirement of |f/R13|more than or equal to 2.5, and more specifically, f and R13 can further meet the requirement of 2.55|f/R13|more than or equal to 3.11. Through reasonable control of the curvature radius R13 of the object side surface of the seventh lens, the trend of light rays on the seventh lens can be effectively improved, and the relative illuminance of the lens can be improved.

The spacing distance T34 between the third lens and the fourth lens on the optical axis and the spacing distance T67 between the sixth lens and the seventh lens on the optical axis can satisfy 0 < T34/T67.ltoreq.1.5, more specifically, T34 and T67 can further satisfy 0.25.ltoreq.T34/T67.ltoreq.1.50. The spacing distance between the lenses is reasonably adjusted, so that the light deflection angle is reduced; meanwhile, the lens assembly manufacturability is improved.

The sum of the center thicknesses ΣCT of the lenses with optical power on the optical axis and the sum of the spacing distances ΣAT of any adjacent two lenses in the lenses with optical power on the optical axis can satisfy 1 < ΣCT/ΣAT < 2.5, more specifically ΣCT and ΣAT can further satisfy 1.36 ΣCT/ΣAT < 2.39. The center thickness and the proportion of the interval distance of each lens in the optical imaging system are reasonably distributed, and the manufacturability in the aspects of lens forming, lens assembling and the like is improved. In addition, reasonable proportional distribution of the thickness and the spacing distance of the centers of the lenses is also beneficial to ensuring miniaturization of the lenses.

In an optical imaging system including seven lenses having optical power, Σct=ct1+ct2+ct3+ct4+ct5+ct6+ct7, wherein CT1 is a central thickness of the first lens on the optical axis, CT2 is a central thickness of the second lens on the optical axis, CT3 is a central thickness of the third lens on the optical axis, CT4 is a central thickness of the fourth lens on the optical axis, CT5 is a central thickness of the fifth lens on the optical axis, CT6 is a central thickness of the sixth lens on the optical axis, and CT7 is a central thickness of the seventh lens on the optical axis. Σat=t12+t23+t34+t45+t56+t67, where T12 is the distance between the first lens and the second lens on the optical axis, T23 is the distance between the second lens and the third lens on the optical axis, T34 is the distance between the third lens and the fourth lens on the optical axis, T45 is the distance between the fourth lens and the fifth lens on the optical axis, T56 is the distance between the fifth lens and the sixth lens on the optical axis, and T67 is the distance between the sixth lens and the seventh lens on the optical axis.

The combined focal length f23 of the second lens and the third lens and the sum Σat of the separation distances on the optical axis of any adjacent two lenses among the lenses having optical power may satisfy 3.5 < f23/Σat < 14.5, more specifically, f23 and Σat may further satisfy 3.82+.f23/Σat+.13.79. Satisfying the condition 3.5 < f23/ΣAT < 14.5 can ensure miniaturization of the lens. In addition, the deflection of the light rays tends to be relaxed by adjusting the distance between the lens shafts, so that the generation of corresponding aberration is reduced, and the sensitivity of the system is reduced.

The total optical length TTL of the optical imaging lens and half of the diagonal length ImgH of an effective pixel area on an imaging surface of the optical imaging lens can meet the condition that TTL/ImgH is less than or equal to 1.6, and more particularly, TTL and ImgH can further meet the condition that TTL/ImgH is less than or equal to 1.43 and less than or equal to 1.52. By controlling the total optical length and the image height ratio of the lens, the total size of the imaging lens can be effectively compressed to realize the ultra-thin characteristic and miniaturization of the optical imaging lens, so that the optical imaging lens can be well applied to systems with limited sizes, such as portable electronic products.

In an exemplary embodiment, the optical imaging lens may further be provided with at least one diaphragm to enhance the imaging quality of the lens. The diaphragm may be disposed at any position between the object side and the image side as needed.

Optionally, the optical imaging lens may further include a filter for correcting color deviation and/or a protective glass for protecting a photosensitive element located on the imaging surface.

The optical imaging lens according to the above-described embodiments of the present application may employ a plurality of lenses, such as seven lenses described above. By reasonably distributing the focal power, the surface shape, the center thickness of each lens, the axial spacing between each lens and the like of each lens, the optical imaging lens with large aperture and good imaging quality, which is applicable to portable electronic products, is provided.

In an embodiment of the present application, at least one of the mirrors of each lens is an aspherical mirror. The aspherical 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 radius of curvature characteristic, and has advantages of improving distortion aberration and improving astigmatic aberration. By adopting the aspherical lens, aberration occurring at the time of imaging can be eliminated as much as possible, thereby improving imaging quality.

However, it will be appreciated by those skilled in the art that the number of lenses making up the optical imaging lens may be varied to achieve the various results and advantages described in the specification without departing from the technical solutions claimed herein. For example, although seven lenses are described as an example 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 the optical imaging lens applicable to the above-described embodiments are further described below with reference to the accompanying 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 configuration 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 refractive power, wherein an object-side surface S1 thereof is convex, an image-side surface S2 thereof 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 refractive power, wherein an object-side surface S3 thereof is convex, an image-side surface S4 thereof is concave, 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 refractive power, wherein an object-side surface S5 thereof is convex, an image-side surface S6 thereof is concave, 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 refractive power, wherein an object-side surface S7 thereof is convex, an image-side surface S8 thereof is convex, 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 refractive power, wherein the object-side surface S9 thereof is concave, the image-side surface S10 thereof is concave, and both the object-side surface S9 and the image-side surface S10 of the fifth lens element E5 are aspheric.

The sixth lens element E6 has positive refractive power, wherein an object-side surface S11 thereof is convex, an image-side surface S12 thereof is convex, 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 refractive power, wherein the object-side surface S13 is concave, the image-side surface S14 is concave, 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 surface S15 and an image side surface S16. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging surface S17.

Table 1 shows the surface types, the radii of curvature, the thicknesses, the materials, and the cone coefficients of the respective lenses of the optical imaging lens of example 1, in which the units of the radii of curvature and the thicknesses are millimeters (mm).

TABLE 1

As can be seen from table 1, the radius of curvature R5 of the object-side surface S5 of the third lens element E3 and the radius of curvature R6 of the image-side surface S6 of the third lens element E3 satisfy |r5+r6|/|r5-r6|=2 22. The radius of curvature R6 of the image side surface S6 of the third lens element E3 and the radius of curvature R3 of the object side surface S3 of the second lens element E2 satisfy r6/r3=1.39; a separation distance T34 of the third lens E3 and the fourth lens E4 on the optical axis and a separation distance T67 of the sixth lens E6 and the seventh lens E7 on the optical axis satisfy t34/t67=1.01; the sum Σct of the center thicknesses of the first lens element E1 to the seventh lens element E7 on the optical axis and the sum Σat of the spacing distances of any two adjacent lens elements of the first lens element E1 to the seventh lens element E7 on the optical axis satisfy Σct/Σat=2.16; the dispersion coefficient V4 of the fourth lens E4, the dispersion coefficient V5 of the fifth lens E5, and the dispersion coefficient V6 of the sixth lens E6 satisfy (v4+v5+v6)/4= 33.15.

In this embodiment, each lens may be an aspherical lens, and each aspherical surface type x is defined by the following formula:

wherein x is the distance vector height from the vertex of the aspheric surface when the aspheric surface is at the position with the height h along the optical axis direction; c is the paraxial curvature of the aspheric surface, c=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 aspherical i-th order. Table 2 below shows the higher order coefficients A that can be used for each of 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 。

Face number

A4

A6

A8

A10

A12

A14

A16

A18

A20

S1

1.7749E-02

-2.6940E-03

-1.9584E-02

3.2116E-02

-3.2410E-02

2.0402E-02

-8.5512E-03

2.8767E-03

-5.5298E-04

S2

3.6391E-03

-7.0184E-02

7.6346E-02

-1.0627E-01

2.1212E-01

-2.5649E-01

1.7166E-01

-5.8628E-02

7.9050E-03

S3

5.6938E-02

-9.6603E-02

9.5734E-02

-1.7536E-01

4.0484E-01

-5.1862E-01

3.6356E-01

-1.3252E-01

1.9592E-02

S4

-4.0895E-02

-5.2498E-02

-2.1895E-01

1.2216E+00

-2.4184E+00

2.5493E+00

-1.5097E+00

4.7318E-01

-6.1082E-02

S5

-6.6623E-02

-7.6874E-03

-5.9985E-02

6.9433E-01

-1.5205E+00

1.5099E+00

-7.0806E-01

1.1543E-01

7.0124E-03

S6

-1.6513E-02

-1.0080E-01

8.3575E-01

-2.7989E+00

5.9221E+00

-8.0264E+00

6.6640E+00

-3.0562E+00

5.9068E-01

S7

-4.6449E-02

-5.5553E-03

-4.3871E-01

1.6680E+00

-3.3224E+00

3.9891E+00

-2.9277E+00

1.2371E+00

-2.3241E-01

S8

2.6751E-02

-2.4337E-02

-4.1840E-01

9.9294E-01

-1.2553E+00

9.3715E-01

-3.9051E-01

8.3150E-02

-7.1586E-03

S9

-3.7179E-02

3.4474E-01

-1.1544E+00

2.0515E+00

-2.3530E+00

1.6997E+00

-7.2552E-01

1.6434E-01

-1.5005E-02

S10

-2.5608E-01

5.4270E-01

-9.4663E-01

1.1540E+00

-9.7467E-01

5.4496E-01

-1.8856E-01

3.6163E-02

-2.9236E-03

S11

-6.8813E-02

4.3271E-02

-4.5366E-02

1.1769E-02

3.2127E-03

-6.5825E-03

3.6253E-03

-8.1181E-04

6.3474E-05

S12

-6.8434E-02

1.1014E-01

-1.2686E-01

9.1266E-02

-5.0465E-02

1.9753E-02

-4.7013E-03

5.9563E-04

-3.0731E-05

S13

3.3172E-02

2.7923E-02

-5.6950E-02

4.5697E-02

-1.8195E-02

4.0898E-03

-5.3336E-04

3.7889E-05

-1.1394E-06

S14

2.5510E-02

-4.1925E-02

2.3043E-02

-7.4193E-03

1.4323E-03

-1.6938E-04

1.2250E-05

-4.9657E-07

8.1197E-09

TABLE 2

Table 3 gives the effective focal lengths f1 to f7 of the respective lenses in embodiment 1, the total effective focal length f of the optical imaging lens, the total optical length TTL of the optical imaging lens (i.e., the 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 half the diagonal length ImgH of the effective pixel region on the imaging surface S17 of the optical imaging lens.

Parameters (parameters)	f1(mm)	f2(mm)	f3(mm)	f4(mm)	f5(mm)
						Numerical value	9.63	4.89	-7.81	16.46	-9.29
Parameters (parameters)	f6(mm)	f7(mm)	f(mm)	TTL(mm)	ImgH(mm)
						Numerical value	2.97	-2.53	4.28	5.15	3.60

TABLE 3 Table 3

As can be taken from table 3, f/f1=0.44 is satisfied between the total effective focal length f of the optical imaging lens and the effective focal length f1 of the first lens E1; the effective focal length f1 of the first lens E1, the effective focal length f2 of the second lens E2 and the effective focal length f3 of the third lens E3 satisfy f3/(f1+f2) = -0.54; the total effective focal length f of the optical imaging lens and the effective focal length f6 of the sixth lens E6 satisfy f6=1.44; the total effective focal length f of the optical imaging lens and the effective focal length f7 of the seventh lens E7 meet f/f7= -1.69; the total optical length TTL of the optical imaging lens and half the diagonal length ImgH of the effective pixel region on the imaging surface S17 of the optical imaging lens satisfy TTL/imgh=1.43. As can be seen from table 1 and table 3, the total effective focal length f of the optical imaging lens and the radius of curvature R9 of the object-side surface S9 of the fifth lens element E5 satisfy |f/r9|=0.49; the total effective focal length f of the optical imaging lens and the radius of curvature R13 of the object side surface S13 of the seventh lens E7 satisfy |f/r13|=3.04.

In embodiment 1, |f/f45|=0.19 is satisfied between the total effective focal length f of the optical imaging lens and the combined focal length f45 of the fourth lens E4 and the fifth lens E5; the combined focal length f23 of the second lens E2 and the third lens E3 satisfies f23/Σat=7.97 between the sum Σat of the separation distances on the optical axis of any adjacent two lenses of the first lens E1 to the seventh lens E7; the total effective focal length f of the optical imaging lens and the entrance pupil diameter EPD of the optical imaging lens satisfy f/epd=1.68.

Fig. 2A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 1, which indicates the deviation of the converging focus after light rays of different wavelengths pass through the lens. Fig. 2B shows an astigmatism curve of the optical imaging lens of embodiment 1, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 2C shows a distortion curve of the optical imaging lens of embodiment 1, which represents distortion magnitude values at different angles of view. Fig. 2D shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 1, which represents the 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 provided in 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 portions similar to embodiment 1 will be omitted for brevity. Fig. 3 shows a schematic structural diagram of an optical imaging lens according to embodiment 2 of the present application.

As shown in fig. 3, the optical imaging lens includes, in order from an object side to an 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 S15.

The third lens element E3 has negative refractive power, wherein the object-side surface S5 thereof is concave, the image-side surface S6 thereof is concave, 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 refractive power, wherein the object-side surface S9 thereof is concave, the image-side surface S10 thereof is convex, and both the object-side surface S9 and the image-side surface S10 of the fifth lens element E5 are aspheric.

The sixth lens element E6 has positive refractive power, wherein an object-side surface S11 thereof is convex, an image-side surface S12 thereof is concave, 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 refractive power, wherein the object-side surface S13 is concave, the image-side surface S14 is convex, and both the object-side surface S13 and the image-side surface S14 of the seventh lens element E7 are aspheric.

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

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

Table 4 shows the surface types, the radii of curvature, the thicknesses, the materials, and the cone coefficients of the respective lenses of the optical imaging lens of example 2, in which the units of the radii of curvature and the thicknesses are millimeters (mm). Table 5 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 2, wherein each of the aspherical surface types can be defined by the formula (1) given in example 1 above. Table 6 shows effective focal lengths f1 to f7 of the respective lenses in embodiment 2, a total effective focal length f of the optical imaging lens, an optical total length TTL of the optical imaging lens, and half of the diagonal length ImgH of the effective pixel region on the imaging surface S15 of the optical imaging lens.

TABLE 4 Table 4

Face number

A4

A6

A8

A10

A12

A14

A16

A18

A20

S1

1.6171E-02

-1.6516E-02

9.7386E-02

-3.0951E-01

5.8799E-01

-6.8597E-01

4.8276E-01

-1.8714E-01

3.0431E-02

S2

-2.4955E-02

4.1652E-04

1.1503E-01

-4.0337E-01

8.6546E-01

-1.1057E+00

8.4493E-01

-3.5512E-01

6.2481E-02

S3

1.4898E-02

-2.9773E-02

8.3903E-02

-2.0365E-01

4.3372E-01

-5.6903E-01

4.4205E-01

-1.8703E-01

3.2814E-02

S4

-6.8165E-02

-1.1503E-02

1.4964E-01

-4.9827E-01

9.6961E-01

-1.1665E+00

8.4891E-01

-3.4076E-01

5.7584E-02

S5

-7.3430E-02

1.1073E-01

-1.7769E-01

3.2652E-01

-6.0803E-01

7.2248E-01

-4.6678E-01

1.4920E-01

-1.7753E-02

S6

-1.0704E-02

-6.9385E-02

5.3081E-01

-1.4162E+00

2.1544E+00

-2.0879E+00

1.2795E+00

-4.4832E-01

6.7924E-02

S7

7.7172E-02

-4.2102E-01

8.2545E-01

-9.5853E-01

6.6184E-01

-2.1908E-01

-3.4441E-03

2.3290E-02

-5.0018E-03

S8

1.5955E-01

-4.3057E-01

3.5134E-01

2.3878E-01

-8.8722E-01

9.9881E-01

-5.7333E-01

1.6575E-01

-1.9047E-02

S9

8.5935E-02

-1.1269E-01

-1.8828E-01

6.8684E-01

-9.9233E-01

8.3275E-01

-4.1140E-01

1.1059E-01

-1.2531E-02

S10

-1.1726E-01

1.1264E-01

-2.0484E-01

2.6826E-01

-2.2917E-01

1.2649E-01

-4.2417E-02

7.7567E-03

-5.9233E-04

S11

5.6032E-02

-1.1503E-01

9.0292E-02

-5.8183E-02

2.7343E-02

-8.4822E-03

1.6174E-03

-1.6978E-04

7.4572E-06

S12

1.2185E-02

-2.0564E-02

-1.8626E-02

2.4704E-02

-1.1741E-02

3.0077E-03

-4.3968E-04

3.4530E-05

-1.1311E-06

S13

6.6277E-02

-7.3903E-02

7.0801E-02

-3.3146E-02

9.1292E-03

-1.5567E-03

1.6198E-04

-9.4365E-06

2.3612E-07

S14

2.8567E-02

-5.1091E-02

4.1135E-02

-1.7722E-02

4.5205E-03

-7.1307E-04

6.8443E-05

-3.6543E-06

8.2911E-08

TABLE 5

Parameters (parameters)	f1(mm)	f2(mm)	f3(mm)	f4(mm)	f5(mm)
						Numerical value	9.34	5.59	-6.22	11.04	-13.03
Parameters (parameters)	f6(mm)	f7(mm)	f(mm)	TTL(mm)	ImgH(mm)
						Numerical value	4.03	-3.03	4.22	5.15	3.50

TABLE 6

Fig. 4A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 2, which indicates the deviation of the converging focus after light rays of different wavelengths pass through the lens. Fig. 4B shows an astigmatism curve of the optical imaging lens of embodiment 2, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 4C shows a distortion curve of the optical imaging lens of embodiment 2, which represents distortion magnitude values at different angles of view. Fig. 4D shows a magnification chromatic aberration 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 provided in embodiment 2 can achieve good imaging quality.

Example 3

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

As shown in fig. 5, the optical imaging lens includes, in order from an object side to an 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.

Table 7 shows the surface types, the radii of curvature, the thicknesses, the materials, and the cone coefficients of the respective lenses of the optical imaging lens of example 3, in which the units of the radii of curvature and the thicknesses are millimeters (mm). Table 8 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 3, wherein each of the aspherical surface types can be defined by the formula (1) given in example 1 above. Table 9 shows effective focal lengths f1 to f7 of the respective lenses in embodiment 3, a total effective focal length f of the optical imaging lens, an optical total length TTL of the optical imaging lens, and half of the diagonal length ImgH of the effective pixel region on the imaging surface S17 of the optical imaging lens.

TABLE 7

Face number

A4

A6

A8

A10

A12

A14

A16

A18

A20

S1

1.2073E-02

-1.9351E-02

3.7343E-02

-7.7892E-02

1.0588E-01

-9.4942E-02

5.4139E-02

-1.7068E-02

2.2121E-03

S2

3.3235E-02

-1.5417E-01

2.1092E-01

-2.2566E-01

1.9521E-01

-9.7115E-02

1.6777E-02

5.4321E-03

-2.1484E-03

S3

8.5667E-02

-1.6785E-01

2.3040E-01

-3.2084E-01

3.8027E-01

-2.8334E-01

1.2556E-01

-3.1723E-02

3.6867E-03

S4

-5.2823E-02

7.6796E-03

-1.7010E-01

6.0811E-01

-1.0815E+00

1.1550E+00

-7.4782E-01

2.6901E-01

-4.1001E-02

S5

-9.4588E-02

1.2556E-01

-3.9701E-01

1.3197E+00

-2.5585E+00

2.9389E+00

-2.0070E+00

7.5457E-01

-1.2002E-01

S6

-3.6807E-02

6.0165E-02

2.8487E-02

-9.4307E-02

1.7023E-01

-3.0989E-01

3.5668E-01

-2.0513E-01

4.6127E-02

S7

-2.5178E-02

-6.6618E-02

-1.4457E-01

8.8118E-01

-1.8710E+00

2.1829E+00

-1.4571E+00

5.3114E-01

-8.3844E-02

S8

8.0704E-02

-2.8658E-01

4.5709E-01

-8.2027E-01

1.1850E+00

-1.1503E+00

6.9775E-01

-2.3261E-01

3.1940E-02

S9

3.3781E-02

1.1343E-01

-5.7640E-01

1.1086E+00

-1.3088E+00

9.5615E-01

-4.1143E-01

9.4836E-02

-9.0042E-03

S10

-2.2975E-01

4.6141E-01

-8.2723E-01

1.0489E+00

-9.0917E-01

5.1467E-01

-1.7905E-01

3.4450E-02

-2.7938E-03

S11

-2.7549E-02

-2.3671E-03

-4.9872E-02

6.9358E-02

-5.6886E-02

2.7503E-02

-7.7820E-03

1.2291E-03

-8.4550E-05

S12

-3.1045E-02

6.9656E-02

-1.1833E-01

9.9107E-02

-5.2983E-02

1.8356E-02

-3.8520E-03

4.3815E-04

-2.0621E-05

S13

4.7411E-02

1.3926E-02

-4.9251E-02

4.2511E-02

-1.7313E-02

3.9418E-03

-5.1974E-04

3.7348E-05

-1.1376E-06

S14

3.6032E-02

-4.3828E-02

2.3214E-02

-7.8324E-03

1.7279E-03

-2.5283E-04

2.3811E-05

-1.2851E-06

2.9294E-08

TABLE 8

Parameters (parameters)	f1(mm)	f2(mm)	f3(mm)	f4(mm)	f5(mm)
						Numerical value	60.04	3.61	-8.28	14.06	-8.72
Parameters (parameters)	f6(mm)	f7(mm)	f(mm)	TTL(mm)	ImgH(mm)
						Numerical value	3.04	-2.80	4.22	5.15	3.52

TABLE 9

Fig. 6A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 3, which indicates a convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 6B shows an astigmatism curve of the optical imaging lens of embodiment 3, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 6C shows a distortion curve of the optical imaging lens of embodiment 3, which represents distortion magnitude values at different angles of view. Fig. 6D shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 3, which represents the 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 provided in embodiment 3 can achieve good imaging quality.

Example 4

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

As shown in fig. 7, the optical imaging lens includes, in order from an object side to an 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.

Table 10 shows the surface types, the radii of curvature, the thicknesses, the materials, and the cone coefficients of the respective lenses of the optical imaging lens of example 4, in which the units of the radii of curvature and the thicknesses are millimeters (mm). Table 11 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 4, wherein each of the aspherical surface types can be defined by the formula (1) given in example 1 above. Table 12 shows effective focal lengths f1 to f7 of the respective lenses in embodiment 4, a total effective focal length f of the optical imaging lens, an optical total length TTL of the optical imaging lens, and half of the diagonal length ImgH of the effective pixel region on the imaging surface S17 of the optical imaging lens.

Table 10

TABLE 11

Parameters (parameters)	f1(mm)	f2(mm)	f3(mm)	f4(mm)	f5(mm)
						Numerical value	9.63	5.20	-8.64	17.70	-9.52
Parameters (parameters)	f6(mm)	f7(mm)	f(mm)	TTL(mm)	ImgH(mm)
						Numerical value	2.99	-2.53	4.27	5.15	3.57

Table 12

Fig. 8A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 4, which indicates a convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 8B shows an astigmatism curve of the optical imaging lens of embodiment 4, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 8C shows a distortion curve of the optical imaging lens of embodiment 4, which represents distortion magnitude values at different angles of view. Fig. 8D shows a magnification chromatic aberration 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 provided in embodiment 4 can achieve good imaging quality.

Example 5

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

As shown in fig. 9, the optical imaging lens includes, in order from an object side to an 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.

Table 13 shows the surface types, the radii of curvature, the thicknesses, the materials, and the cone coefficients of the respective lenses of the optical imaging lens of example 5, in which the units of the radii of curvature and the thicknesses are millimeters (mm). Table 14 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 5, wherein each of the aspherical surface types can be defined by the formula (1) given in example 1 above. Table 15 shows effective focal lengths f1 to f7 of the respective lenses in embodiment 5, a total effective focal length f of the optical imaging lens, an optical total length TTL of the optical imaging lens, and half of the diagonal length ImgH of the effective pixel region on the imaging surface S17 of the optical imaging lens.

TABLE 13

Face number

A4

A6

A8

A10

A12

A14

A16

A18

A20

S1

1.7800E-02

-9.2600E-03

-1.5400E-02

3.6000E-02

-4.7600E-02

3.6400E-02

-1.5300E-02

3.5800E-03

-3.9900E-04

S2

8.9700E-03

-9.5400E-02

1.2200E-01

-1.3500E-01

1.5000E-01

-1.1200E-01

4.8700E-02

-1.0100E-02

5.1700E-04

S3

5.4500E-02

-9.7500E-02

9.6300E-02

-6.8700E-02

4.7500E-02

5.2100E-03

-3.7800E-02

2.4500E-02

-5.2900E-03

S4

-3.3000E-02

-1.2300E-01

3.6800E-01

-7.7800E-01

1.1700E+00

-1.1400E+00

6.8800E-01

-2.3100E-01

3.2700E-02

S5

-7.3800E-02

-7.9000E-02

5.8300E-01

-1.4800E+00

2.3400E+00

-2.3700E+00

1.5000E+00

-5.3500E-01

8.1600E-02

S6

-3.2400E-02

-2.5800E-02

4.7200E-01

-1.3700E+00

2.3000E+00

-2.4500E+00

1.6200E+00

-5.9800E-01

9.3500E-02

S7

-5.5700E-02

-6.4900E-02

7.0600E-02

1.8500E-01

-9.7100E-01

1.8200E+00

-1.8100E+00

9.4500E-01

-2.0200E-01

S8

-2.5600E-03

-1.6500E-01

2.8800E-01

-4.5400E-01

4.0900E-01

-1.3900E-01

-6.0100E-02

6.8600E-02

-1.6900E-02

S9

5.1200E-03

6.0700E-02

-4.3800E-01

9.7200E-01

-1.3800E+00

1.2200E+00

-6.2500E-01

1.7200E-01

-1.9900E-02

S10

-1.3500E-01

2.0500E-01

-3.4000E-01

4.1900E-01

-3.9700E-01

2.6200E-01

-1.0600E-01

2.3300E-02

-2.1200E-03

S11

-1.4100E-01

1.7800E-01

-2.6000E-01

2.8500E-01

-2.3000E-01

1.1700E-01

-3.5800E-02

5.9700E-03

-4.2300E-04

S12

-6.2300E-02

9.2900E-02

-9.5500E-02

7.2400E-02

-4.7000E-02

2.0500E-02

-5.1200E-03

6.6100E-04

-3.4400E-05

S13

2.5200E-02

1.8100E-02

-3.4200E-02

2.8400E-02

-1.1500E-02

2.5800E-03

-3.3600E-04

2.3800E-05

-7.1500E-07

S14

1.4600E-02

-3.1200E-02

1.5600E-02

-4.1200E-03

5.5900E-04

-2.3900E-05

-3.3100E-06

4.8700E-07

-1.9400E-08

TABLE 14

Parameters (parameters)	f1(mm)	f2(mm)	f3(mm)	f4(mm)	f5(mm)
						Numerical value	9.63	5.29	-8.82	17.60	-9.44
Parameters (parameters)	f6(mm)	f7(mm)	f(mm)	TTL(mm)	ImgH(mm)
						Numerical value	2.98	-2.54	4.26	5.17	3.60

TABLE 15

Fig. 10A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 5, which indicates a convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 10B shows an astigmatism curve of the optical imaging lens of embodiment 5, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 10C shows a distortion curve of the optical imaging lens of embodiment 5, which represents distortion magnitude values at different angles of view. Fig. 10D shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 5, which represents the deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 10A to 10D, the optical imaging lens provided in 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 diagram of an optical imaging lens according to embodiment 6 of the present application.

As shown in fig. 11, the optical imaging lens includes, in order from an object side to an 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.

Table 16 shows the surface types, the radii of curvature, the thicknesses, the materials, and the cone coefficients of the respective lenses of the optical imaging lens of example 6, in which the units of the radii of curvature and the thicknesses are millimeters (mm). Table 17 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 6, wherein each of the aspherical surface types can be defined by the formula (1) given in example 1 above. Table 18 shows effective focal lengths f1 to f7 of the respective lenses in embodiment 6, a total effective focal length f of the optical imaging lens, an optical total length TTL of the optical imaging lens, and half of the diagonal length ImgH of the effective pixel region on the imaging surface S17 of the optical imaging lens.

Table 16

Face number

A4

A6

A8

A10

A12

A14

A16

A18

A20

S1

1.4200E-02

9.5900E-03

-6.4300E-02

1.1200E-01

-1.2300E-01

8.5200E-02

-3.5000E-02

8.0100E-03

-8.1200E-04

S2

-3.5200E-03

-3.7300E-02

-1.3200E-02

7.0100E-02

-5.2500E-02

1.1000E-02

8.1100E-03

-5.2900E-03

9.0400E-04

S3

4.4200E-02

-5.8600E-02

3.6000E-02

-5.5600E-02

1.6300E-01

-2.0600E-01

1.3700E-01

-4.8500E-02

7.2700E-03

S4

-5.4800E-02

1.6500E-01

-9.2800E-01

2.3100E+00

-3.2400E+00

2.7800E+00

-1.4300E+00

4.0600E-01

-4.8000E-02

S5

-1.0300E-01

2.4500E-01

-8.3800E-01

1.8700E+00

-2.3900E+00

1.7100E+00

-5.9600E-01

3.8100E-02

2.0600E-02

S6

-4.6900E-02

9.5200E-02

-3.2100E-03

-3.1800E-01

9.5300E-01

-1.4800E+00

1.3000E+00

-6.0000E-01

1.1600E-01

S7

-7.3700E-02

3.5700E-02

-3.0600E-01

1.1300E+00

-2.6200E+00

3.7500E+00

-3.2200E+00

1.5200E+00

-2.9800E-01

S8

-3.6800E-02

-7.8300E-03

-2.3500E-01

7.3500E-01

-1.3400E+00

1.5300E+00

-1.0500E+00

3.9900E-01

-6.3800E-02

S9

5.2500E-03

1.1300E-01

-7.0200E-01

1.5900E+00

-2.2400E+00

1.9700E+00

-1.0400E+00

2.9900E-01

-3.6500E-02

S10

-1.3400E-01

2.5800E-01

-5.3100E-01

7.1700E-01

-6.6600E-01

4.1000E-01

-1.5600E-01

3.2500E-02

-2.8500E-03

S11

-1.2500E-01

1.9700E-01

-3.3100E-01

3.5300E-01

-2.6300E-01

1.2700E-01

-3.7200E-02

6.0600E-03

-4.2000E-04

S12

-8.6600E-02

1.6600E-01

-1.9300E-01

1.3800E-01

-7.1600E-02

2.5600E-02

-5.6400E-03

6.7400E-04

-3.3300E-05

S13

1.5000E-02

3.9100E-02

-5.1800E-02

3.6600E-02

-1.3800E-02

3.0500E-03

-3.9500E-04

2.8300E-05

-8.6600E-07

S14

1.1900E-02

-3.6000E-02

2.3800E-02

-9.3300E-03

2.2800E-03

-3.5100E-04

3.2800E-05

-1.6800E-06

3.5100E-08

TABLE 17

Parameters (parameters)	f1(mm)	f2(mm)	f3(mm)	f4(mm)	f5(mm)
						Numerical value	9.63	5.18	-8.53	17.79	-187.21
Parameters (parameters)	f6(mm)	f7(mm)	f(mm)	TTL(mm)	ImgH(mm)
						Numerical value	4.38	-2.59	4.38	5.24	3.52

TABLE 18

Fig. 12A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 6, which indicates a convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 12B shows an astigmatism curve of the optical imaging lens of embodiment 6, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 12C shows a distortion curve of the optical imaging lens of embodiment 6, which represents distortion magnitude values at different angles of view. Fig. 12D shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 6, which represents the deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 12A to 12D, the optical imaging lens provided in 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 shows a schematic structural diagram 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 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 fifth lens element E5 has positive refractive power, wherein the object-side surface S9 thereof is concave, the image-side surface S10 thereof is convex, and both the object-side surface S9 and the image-side surface S10 of the fifth lens element E5 are aspheric.

Table 19 shows the surface types, the radii of curvature, the thicknesses, the materials, and the cone coefficients of the respective lenses of the optical imaging lens of example 7, in which the units of the radii of curvature and the thicknesses are millimeters (mm). Table 20 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 7, wherein each of the aspherical surface types can be defined by the formula (1) given in example 1 above. Table 21 shows effective focal lengths f1 to f7 of the respective lenses in embodiment 7, a total effective focal length f of the optical imaging lens, an optical total length TTL of the optical imaging lens, and half of the diagonal length ImgH of the effective pixel region on the imaging surface S17 of the optical imaging lens.

TABLE 19

Table 20

Parameters (parameters)	f1(mm)	f2(mm)	f3(mm)	f4(mm)	f5(mm)
						Numerical value	7.63	5.54	-6.95	15.64	30.25
Parameters (parameters)	f6(mm)	f7(mm)	f(mm)	TTL(mm)	ImgH(mm)
						Numerical value	5.31	-2.55	4.48	5.30	3.52

Table 21

Fig. 14A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 7, which indicates a convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 14B shows an astigmatism curve of the optical imaging lens of embodiment 7, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 14C shows a distortion curve of the optical imaging lens of embodiment 7, which represents distortion magnitude values in the case of different angles of view. Fig. 14D shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 7, which represents the deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 14A to 14D, the optical imaging lens provided in 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 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.

Table 22 shows the surface types, the radii of curvature, the thicknesses, the materials, and the cone coefficients of the respective lenses of the optical imaging lens of example 8, in which the units of the radii of curvature and the thicknesses are millimeters (mm). Table 23 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 8, wherein each of the aspherical surface types can be defined by the formula (1) given in example 1 above. Table 24 shows effective focal lengths f1 to f7 of the respective lenses in embodiment 8, a total effective focal length f of the optical imaging lens, an optical total length TTL of the optical imaging lens, and half of the diagonal length ImgH of the effective pixel region on the imaging surface S17 of the optical imaging lens.

Table 22

Face number

A4

A6

A8

A10

A12

A14

A16

A18

A20

S1

1.6200E-02

5.0700E-03

-6.4300E-02

1.3400E-01

-1.7100E-01

1.3500E-01

-6.3800E-02

1.6700E-02

-1.9100E-03

S2

1.1500E-02

-1.0100E-01

1.1700E-01

-1.1700E-01

1.3800E-01

-1.1100E-01

5.0300E-02

-1.0300E-02

4.2400E-04

S3

5.5900E-02

-8.1800E-02

-2.7800E-02

2.7700E-01

-4.9900E-01

5.4600E-01

-3.6700E-01

1.3600E-01

-2.1200E-02

S4

-1.9700E-02

-1.6000E-01

2.4300E-01

-1.3300E-01

2.2900E-02

-6.3900E-02

1.0500E-01

-5.7900E-02

1.0600E-02

S5

-6.0200E-02

-1.1900E-01

5.0100E-01

-9.5700E-01

1.4100E+00

-1.5600E+00

1.1200E+00

-4.4300E-01

7.2500E-02

S6

-2.9500E-02

-4.9700E-02

5.4300E-01

-1.5000E+00

2.5300E+00

-2.7200E+00

1.7700E+00

-6.1500E-01

8.5100E-02

S7

-6.0800E-02

4.2000E-02

-6.2900E-01

2.3800E+00

-5.1200E+00

6.7100E+00

-5.3400E+00

2.3700E+00

-4.4800E-01

S8

1.8000E-03

-4.8200E-02

-9.9900E-02

1.1500E-01

-3.5000E-02

-3.9000E-03

-4.0400E-03

1.2900E-02

-4.6700E-03

S9

-5.6400E-02

3.3100E-01

-9.3300E-01

1.4900E+00

-1.6900E+00

1.2900E+00

-5.9600E-01

1.5000E-01

-1.5800E-02

S10

-2.5900E-01

5.0200E-01

-7.5600E-01

7.8600E-01

-6.0000E-01

3.2300E-01

-1.1100E-01

2.1500E-02

-1.7500E-03

S11

-1.4500E-01

1.9500E-01

-2.5300E-01

2.3200E-01

-1.6200E-01

7.3200E-02

-1.9900E-02

2.9800E-03

-1.9200E-04

S12

-3.6500E-02

3.4200E-02

-3.1900E-02

2.7800E-02

-2.5600E-02

1.3600E-02

-3.7300E-03

5.0400E-04

-2.6800E-05

S13

2.8400E-02

1.1400E-02

-2.5400E-02

2.2600E-02

-9.2300E-03

2.0600E-03

-2.6300E-04

1.8100E-05

-5.2800E-07

S14

6.1200E-03

-1.7600E-02

7.2600E-03

-1.0200E-03

-2.4600E-04

1.1800E-04

-1.8800E-05

1.4200E-06

-4.2600E-08

Table 23

Parameters (parameters)	f1(mm)	f2(mm)	f3(mm)	f4(mm)	f5(mm)
						Numerical value	9.38	4.93	-7.66	18.98	-9.79
Parameters (parameters)	f6(mm)	f7(mm)	f(mm)	TTL(mm)	ImgH(mm)
						Numerical value	3.01	-2.45	4.44	5.31	3.52

Table 24

Fig. 16A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 8, which indicates a convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 16B shows an astigmatism curve of the optical imaging lens of embodiment 8, which represents meridional image plane curvature and sagittal image plane curvature. 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 magnification chromatic aberration curve of the optical imaging lens of embodiment 8, which represents the deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 16A to 16D, the optical imaging lens provided in 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 shows a schematic configuration diagram of 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 fourth lens element E4 has positive refractive power, wherein an object-side surface S7 thereof is planar, an image-side surface S8 thereof is convex, and both the object-side surface S7 and the image-side surface S8 of the fourth lens element E4 are aspheric.

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

Table 25 shows the surface types, the radii of curvature, the thicknesses, the materials, and the cone coefficients of the respective lenses of the optical imaging lens of example 9, in which the units of the radii of curvature and the thicknesses are millimeters (mm). Table 26 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 9, wherein each of the aspherical surface types can be defined by the formula (1) given in example 1 above. Table 27 shows effective focal lengths f1 to f7 of the respective lenses in embodiment 9, a total effective focal length f of the optical imaging lens, an optical total length TTL of the optical imaging lens, and half of the diagonal length ImgH of the effective pixel region on the imaging surface S17 of the optical imaging lens.

Table 25

Face number

A4

A6

A8

A10

A12

A14

A16

A18

A20

S1

1.6900E-02

-1.0500E-02

1.1300E-02

-2.9100E-02

4.3200E-02

-4.4600E-02

2.9200E-02

-1.0100E-02

1.3700E-03

S2

3.0500E-02

-1.4600E-01

2.2600E-01

-3.7100E-01

5.3600E-01

-5.0400E-01

2.8900E-01

-9.2100E-02

1.2500E-02

S3

6.3800E-02

-1.4300E-01

1.9700E-01

-3.3400E-01

5.0300E-01

-4.4100E-01

2.1500E-01

-5.4700E-02

5.5900E-03

S4

-6.0700E-02

-4.4700E-02

2.8100E-01

-7.4700E-01

1.3100E+00

-1.4900E+00

1.0200E+00

-3.7700E-01

5.7700E-02

S5

-8.0100E-02

-8.4000E-03

3.9400E-01

-1.1200E+00

1.8900E+00

-2.0700E+00

1.4100E+00

-5.2100E-01

7.9100E-02

S6

-2.1500E-02

7.6000E-03

1.8200E-01

-5.1500E-01

7.3000E-01

-5.7900E-01

2.1700E-01

8.4700E-03

-2.3400E-02

S7

-6.5300E-02

3.2100E-02

-3.6300E-01

1.2000E+00

-2.4400E+00

3.1400E+00

-2.4800E+00

1.1200E+00

-2.2000E-01

S8

-4.2200E-02

-1.5000E-02

1.6100E-02

-2.5400E-01

5.9100E-01

-6.8900E-01

4.6000E-01

-1.6100E-01

2.2500E-02

S9

-5.7900E-02

1.5200E-01

-3.0500E-01

3.9400E-01

-4.1300E-01

2.7900E-01

-9.8800E-02

1.4300E-02

-1.8200E-04

S10

-1.3200E-01

1.3000E-01

-1.4400E-01

1.7700E-01

-1.9900E-01

1.4000E-01

-5.5500E-02

1.1300E-02

-9.4000E-04

S11

-8.1400E-03

-1.2500E-01

1.6800E-01

-1.6500E-01

1.1200E-01

-5.0500E-02

1.4300E-02

-2.2400E-03

1.4600E-04

S12

1.1500E-01

-1.3600E-01

8.4000E-02

-4.1600E-02

1.6000E-02

-4.3300E-03

7.6000E-04

-7.5500E-05

3.1900E-06

S13

-3.8500E-01

3.0600E-01

-1.8200E-01

7.7200E-02

-2.1800E-02

3.9800E-03

-4.5000E-04

2.8600E-05

-7.8600E-07

S14

-1.9300E-01

1.3700E-01

-7.2400E-02

2.6500E-02

-6.5300E-03

1.0600E-03

-1.0900E-04

6.3600E-06

-1.6200E-07

Table 26

Parameters (parameters)	f1(mm)	f2(mm)	f3(mm)	f4(mm)	f5(mm)
						Numerical value	16.95	4.26	-9.05	29.72	-15.43
Parameters (parameters)	f6(mm)	f7(mm)	f(mm)	TTL(mm)	ImgH(mm)
						Numerical value	5.90	-4.77	4.48	5.35	3.52

Table 27

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

Table 28 shows the surface types, radii of curvature, thicknesses, materials, and cone coefficients of the respective lenses of the optical imaging lens of example 10, wherein the radii of curvature and thicknesses are each in millimeters (mm). Table 29 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 10, where each of the aspherical surface types can be defined by the formula (1) given in example 1 above. Table 30 shows effective focal lengths f1 to f7 of the respective lenses in embodiment 10, a total effective focal length f of the optical imaging lens, an optical total length TTL of the optical imaging lens, and half of the diagonal length ImgH of the effective pixel region on the imaging surface S17 of the optical imaging lens.

Table 28

Table 29

Parameters (parameters)	f1(mm)	f2(mm)	f3(mm)	f4(mm)	f5(mm)
						Numerical value	17.77	4.31	-9.28	27.89	-16.50
Parameters (parameters)	f6(mm)	f7(mm)	f(mm)	TTL(mm)	ImgH(mm)
						Numerical value	6.38	-5.04	4.46	5.35	3.52

Table 30

Fig. 20A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 10, which indicates the deviation of the converging focus after light rays of different wavelengths pass through the lens. Fig. 20B shows an astigmatism curve of the optical imaging lens of embodiment 10, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 20C shows a distortion curve of the optical imaging lens of embodiment 10, which represents distortion magnitude values in the case of different angles of view. Fig. 20D shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 10, which represents the deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 20A to 20D, the optical imaging lens provided in 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 shows a schematic structural diagram of 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 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.

Table 31 shows the surface types, the radii of curvature, the thicknesses, the materials, and the cone coefficients of the respective lenses of the optical imaging lens of example 11, in which the units of the radii of curvature and the thicknesses are millimeters (mm). Table 32 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 11, where each of the aspherical surface types can be defined by the formula (1) given in example 1 above. Table 33 shows effective focal lengths f1 to f7 of the respective lenses in embodiment 11, a total effective focal length f of the optical imaging lens, an optical total length TTL of the optical imaging lens, and half of the diagonal length ImgH of the effective pixel region on the imaging surface S17 of the optical imaging lens.

Table 31

Face number

A4

A6

A8

A10

A12

A14

A16

A18

A20

S1

1.6200E-02

-1.3100E-02

2.3400E-02

-5.7400E-02

7.9100E-02

-6.9000E-02

3.7100E-02

-1.0700E-02

1.2500E-03

S2

3.5300E-02

-1.6200E-01

2.5100E-01

-3.8800E-01

5.2100E-01

-4.5000E-01

2.3000E-01

-6.2600E-02

6.8000E-03

S3

6.2000E-02

-1.3000E-01

1.1200E-01

-4.4900E-02

-4.0100E-02

1.6800E-01

-1.9700E-01

1.0000E-01

-1.9600E-02

S4

-6.0500E-02

-4.6400E-02

2.8800E-01

-7.4300E-01

1.2800E+00

-1.4300E+00

9.8200E-01

-3.6700E-01

5.6600E-02

S5

-8.0100E-02

-7.5300E-03

3.6800E-01

-1.0200E+00

1.7200E+00

-1.9300E+00

1.3600E+00

-5.3700E-01

8.8700E-02

S6

-2.1900E-02

1.1200E-02

1.6500E-01

-4.6600E-01

6.8500E-01

-6.3100E-01

3.7000E-01

-1.1800E-01

1.3600E-02

S7

-6.3700E-02

-1.1300E-02

-5.8200E-02

1.9000E-01

-4.6900E-01

7.2200E-01

-6.5200E-01

3.3200E-01

-7.3000E-02

S8

-3.7800E-02

-1.2800E-01

5.1700E-01

-1.4100E+00

2.2200E+00

-2.1500E+00

1.2600E+00

-4.0400E-01

5.4300E-02

S9

-3.5200E-02

-4.1100E-02

2.2500E-01

-4.3400E-01

4.0600E-01

-2.2900E-01

8.5800E-02

-1.9900E-02

2.0100E-03

S10

-7.4300E-02

-1.3100E-01

4.1300E-01

-5.4300E-01

4.0300E-01

-1.8400E-01

5.2100E-02

-8.5000E-03

6.0700E-04

S11

3.3600E-02

-2.4200E-01

3.4700E-01

-3.2500E-01

2.0000E-01

-8.0200E-02

2.0100E-02

-2.8200E-03

1.6700E-04

S12

9.7800E-02

-1.0900E-01

6.1700E-02

-2.8500E-02

1.0200E-02

-2.5800E-03

4.1800E-04

-3.8400E-05

1.4900E-06

S13

-4.6200E-01

4.1400E-01

-2.7100E-01

1.2200E-01

-3.5600E-02

6.6800E-03

-7.7300E-04

5.0400E-05

-1.4200E-06

S14

-2.1900E-01

1.6400E-01

-9.0200E-02

3.3200E-02

-8.0300E-03

1.2600E-03

-1.2500E-04

7.0600E-06

-1.7500E-07

Table 32

Parameters (parameters)	f1(mm)	f2(mm)	f3(mm)	f4(mm)	f5(mm)
						Numerical value	20.67	4.26	-9.49	26.72	-15.86
Parameters (parameters)	f6(mm)	f7(mm)	f(mm)	TTL(mm)	ImgH(mm)
						Numerical value	6.39	-5.36	4.41	5.35	3.52

Table 33

Fig. 22A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 11, which indicates a convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 22B shows an astigmatism curve of the optical imaging lens of embodiment 11, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 22C shows a distortion curve of the optical imaging lens of embodiment 11, which represents distortion magnitude values in the case of different angles of view. Fig. 22D shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 11, which represents the deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 22A to 22D, the optical imaging lens provided in 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 shows a schematic configuration diagram of 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 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.

Table 34 shows the surface types, the radii of curvature, the thicknesses, the materials, and the cone coefficients of the respective lenses of the optical imaging lens of example 12, in which the units of the radii of curvature and the thicknesses are millimeters (mm). Table 35 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 12, wherein each of the aspherical surface types can be defined by the formula (1) given in example 1 above.

Table 36 shows effective focal lengths f1 to f7 of the respective lenses in embodiment 12, a total effective focal length f of the optical imaging lens, an optical total length TTL of the optical imaging lens, and half of the diagonal length ImgH of the effective pixel region on the imaging surface S17 of the optical imaging lens.

Watch 34

Face number

A4

A6

A8

A10

A12

A14

A16

A18

A20

S1

1.5000E-02

-1.1900E-02

2.0900E-02

-5.3200E-02

7.2700E-02

-6.2300E-02

3.2800E-02

-9.3400E-03

1.0600E-03

S2

3.7100E-02

-1.7000E-01

2.6800E-01

-4.1900E-01

5.6400E-01

-4.9000E-01

2.5400E-01

-7.0600E-02

7.9600E-03

S3

6.2300E-02

-1.3100E-01

1.1200E-01

-4.1900E-02

-4.1800E-02

1.6100E-01

-1.8500E-01

9.3700E-02

-1.8100E-02

S4

-6.0700E-02

-4.4300E-02

2.8000E-01

-7.1600E-01

1.2200E+00

-1.3600E+00

9.2700E-01

-3.4500E-01

5.3000E-02

S5

-7.9900E-02

-7.4700E-03

3.6600E-01

-1.0100E+00

1.7000E+00

-1.8900E+00

1.3300E+00

-5.2100E-01

8.5600E-02

S6

-2.1800E-02

9.9600E-03

1.6800E-01

-4.6500E-01

6.8800E-01

-6.5500E-01

4.0500E-01

-1.4000E-01

1.8700E-02

S7

-6.4200E-02

5.6600E-04

-1.1200E-01

3.3300E-01

-6.8700E-01

9.1700E-01

-7.4700E-01

3.5000E-01

-7.2200E-02

S8

-3.5700E-02

-1.3700E-01

5.2600E-01

-1.4000E+00

2.1800E+00

-2.0800E+00

1.2100E+00

-3.8400E-01

5.1000E-02

S9

-2.8800E-02

-6.7100E-02

2.5900E-01

-4.4900E-01

3.9500E-01

-2.0400E-01

6.6900E-02

-1.3100E-02

1.0700E-03

S10

-6.5500E-02

-1.6000E-01

4.5200E-01

-5.7800E-01

4.2600E-01

-1.9400E-01

5.4700E-02

-8.8100E-03

6.1800E-04

S11

3.6300E-02

-2.4800E-01

3.5400E-01

-3.3100E-01

2.0200E-01

-8.0200E-02

1.9900E-02

-2.7600E-03

1.6200E-04

S12

9.1100E-02

-9.7600E-02

5.2600E-02

-2.4100E-02

8.7400E-03

-2.2200E-03

3.6300E-04

-3.3300E-05

1.2900E-06

S13

-4.6600E-01

4.1900E-01

-2.7500E-01

1.2300E-01

-3.6000E-02

6.7400E-03

-7.7700E-04

5.0500E-05

-1.4100E-06

S14

-2.2500E-01

1.7200E-01

-9.6400E-02

3.6000E-02

-8.7800E-03

1.3800E-03

-1.3700E-04

7.7500E-06

-1.9100E-07

Table 35

Parameters (parameters)	f1(mm)	f2(mm)	f3(mm)	f4(mm)	f5(mm)
						Numerical value	24.74	4.19	-9.67	25.42	-16.04
Parameters (parameters)	f6(mm)	f7(mm)	f(mm)	TTL(mm)	ImgH(mm)
						Numerical value	6.36	-5.45	4.37	5.34	3.52

Table 36

Fig. 24A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 12, which indicates the deviation of the converging focus after light rays of different wavelengths pass through the lens. Fig. 24B shows an astigmatism curve of the optical imaging lens of embodiment 12, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 24C shows a distortion curve of the optical imaging lens of embodiment 12, which represents distortion magnitude values in the case of different angles of view. Fig. 24D shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 12, which represents the deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 24A to 24D, the optical imaging lens provided in 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 fourth lens element E4 has positive refractive power, wherein an object-side surface S7 thereof is convex, an image-side surface S8 thereof is concave, and both the object-side surface S7 and the image-side surface S8 of the fourth lens element E4 are aspheric.

Table 37 shows the surface types, the radii of curvature, the thicknesses, the materials, and the cone coefficients of the respective lenses of the optical imaging lens of example 13, in which the units of the radii of curvature and the thicknesses are millimeters (mm). Table 38 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 13, where each of the aspherical surface types 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 in embodiment 13, a total effective focal length f of the optical imaging lens, an optical total length TTL of the optical imaging lens, and half of the diagonal length ImgH of the effective pixel region on the imaging surface S17 of the optical imaging lens.

Table 37

Face number

A4

A6

A8

A10

A12

A14

A16

A18

A20

S1

1.1200E-02

-8.1600E-03

3.6500E-04

-4.6000E-04

-1.8200E-03

7.5200E-04

1.4300E-03

-9.2200E-04

1.4200E-04

S2

5.4700E-02

-2.2400E-01

3.2900E-01

-3.9200E-01

3.9100E-01

-2.7300E-01

1.2000E-01

-2.9700E-02

3.0700E-03

S3

7.2500E-02

-1.6100E-01

1.7800E-01

-1.6200E-01

1.4400E-01

-6.6000E-02

-4.3100E-03

1.4800E-02

-3.9100E-03

S4

-6.8000E-02

8.6500E-02

-4.3000E-01

1.2100E+00

-1.8200E+00

1.6000E+00

-8.1800E-01

2.2600E-01

-2.6000E-02

S5

-9.5000E-02

1.6800E-01

-5.4000E-01

1.5000E+00

-2.4200E+00

2.2800E+00

-1.2400E+00

3.6100E-01

-4.3300E-02

S6

-2.6700E-02

3.4200E-02

9.5600E-02

-3.5800E-01

7.0200E-01

-9.0300E-01

7.2200E-01

-3.1400E-01

5.6300E-02

S7

-5.4400E-02

-3.1300E-02

-1.0300E-02

4.6300E-02

-5.4500E-02

1.2400E-02

3.0100E-02

-1.7300E-02

1.3000E-03

S8

-1.7000E-02

-1.9500E-01

6.1100E-01

-1.4800E+00

2.2300E+00

-2.1200E+00

1.2300E+00

-3.9800E-01

5.4100E-02

S9

-1.2500E-02

-1.2400E-01

3.3100E-01

-5.1500E-01

4.4300E-01

-2.2000E-01

6.3900E-02

-9.7900E-03

4.7200E-04

S10

-5.7500E-02

-1.6200E-01

4.0800E-01

-5.0500E-01

3.7200E-01

-1.6800E-01

4.6000E-02

-6.9700E-03

4.4300E-04

S11

3.0800E-02

-2.2300E-01

3.3400E-01

-3.4500E-01

2.3300E-01

-1.0000E-01

2.6500E-02

-3.8400E-03

2.3300E-04

S12

6.0000E-02

-3.2400E-02

-1.2600E-02

1.2600E-02

-3.9900E-03

5.1600E-04

1.3000E-05

-9.6600E-06

6.6200E-07

S13

-4.7800E-01

4.3600E-01

-2.9100E-01

1.3200E-01

-3.9000E-02

7.3200E-03

-8.4800E-04

5.5100E-05

-1.5400E-06

S14

-2.4500E-01

1.9800E-01

-1.1800E-01

4.6600E-02

-1.1900E-02

1.9500E-03

-1.9800E-04

1.1300E-05

-2.8100E-07

Table 38

Parameters (parameters)	f1(mm)	f2(mm)	f3(mm)	f4(mm)	f5(mm)
						Numerical value	57.08	3.90	-9.68	21.32	-15.55
Parameters (parameters)	f6(mm)	f7(mm)	f(mm)	TTL(mm)	ImgH(mm)
						Numerical value	6.24	-5.62	4.30	5.35	3.62

Table 39

Fig. 26A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 13, which indicates a convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 26B shows an astigmatism curve of the optical imaging lens of embodiment 13, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 26C shows a distortion curve of the optical imaging lens of embodiment 13, which represents distortion magnitude values in the case of different angles of view. Fig. 26D shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 13, which represents the deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 26A to 26D, the optical imaging lens provided in 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 shows a schematic structural diagram of 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.

Table 40 shows the surface types, radii of curvature, thicknesses, materials, and cone coefficients of the respective lenses of the optical imaging lens of example 14, wherein the radii of curvature and thicknesses are each in millimeters (mm). Table 41 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 14, wherein each of the aspherical surface types can be defined by the formula (1) given in example 1 above. Table 42 shows effective focal lengths f1 to f7 of the respective lenses in embodiment 14, a total effective focal length f of the optical imaging lens, an optical total length TTL of the optical imaging lens, and half of the diagonal length ImgH of the effective pixel region on the imaging surface S17 of the optical imaging lens.

Table 40

Face number

A4

A6

A8

A10

A12

A14

A16

A18

A20

S1

1.0600E-02

-9.4400E-03

2.4400E-03

-9.8400E-04

-3.9300E-03

4.0600E-03

-8.2400E-04

-1.9200E-04

5.1400E-05

S2

5.5700E-02

-2.2600E-01

3.3700E-01

-3.9800E-01

3.8600E-01

-2.6100E-01

1.1200E-01

-2.7300E-02

2.8000E-03

S3

7.2500E-02

-1.6300E-01

1.9600E-01

-2.0900E-01

2.0800E-01

-1.2200E-01

2.7700E-02

4.0200E-03

-2.2900E-03

S4

-6.4100E-02

5.9100E-02

-3.1700E-01

9.3000E-01

-1.4200E+00

1.2400E+00

-6.3300E-01

1.7300E-01

-1.9700E-02

S5

-9.4500E-02

1.6700E-01

-5.3500E-01

1.4800E+00

-2.3900E+00

2.2400E+00

-1.2200E+00

3.5700E-01

-4.3100E-02

S6

-2.8400E-02

3.8100E-02

9.4900E-02

-3.7200E-01

7.3800E-01

-9.4200E-01

7.3900E-01

-3.1500E-01

5.5200E-02

S7

-5.4900E-02

-2.9900E-02

4.0400E-05

-8.6600E-03

7.7200E-02

-1.6200E-01

1.6300E-01

-7.2000E-02

1.0900E-02

S8

-1.5300E-02

-2.0500E-01

6.5400E-01

-1.5800E+00

2.3600E+00

-2.2000E+00

1.2500E+00

-3.9800E-01

5.3300E-02

S9

-1.1400E-02

-1.3300E-01

3.8000E-01

-6.1900E-01

5.5700E-01

-2.9000E-01

8.8400E-02

-1.4700E-02

9.3200E-04

S10

-5.8100E-02

-1.7100E-01

4.4000E-01

-5.5400E-01

4.1200E-01

-1.8700E-01

5.0600E-02

-7.4400E-03

4.4800E-04

S11

3.2200E-02

-2.2900E-01

3.4200E-01

-3.5200E-01

2.3500E-01

-1.0100E-01

2.6500E-02

-3.8300E-03

2.3200E-04

S12

5.8200E-02

-2.5200E-02

-2.1000E-02

1.8000E-02

-6.1900E-03

1.0900E-03

-7.6400E-05

-2.0700E-06

3.9300E-07

S13

-4.5700E-01

4.0900E-01

-2.7100E-01

1.2300E-01

-3.6500E-02

6.8900E-03

-8.0300E-04

5.2500E-05

-1.4800E-06

S14

-2.3700E-01

1.8900E-01

-1.1200E-01

4.4900E-02

-1.1500E-02

1.8900E-03

-1.9200E-04

1.1000E-05

-2.7200E-07

Table 41

Parameters (parameters)	f1(mm)	f2(mm)	f3(mm)	f4(mm)	f5(mm)
						Numerical value	3.95	3.90	-9.79	21.05	-14.82
Parameters (parameters)	f6(mm)	f7(mm)	f(mm)	TTL(mm)	ImgH(mm)
						Numerical value	6.10	-5.91	4.24	5.34	3.52

Table 42

Fig. 28A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 14, which indicates the deviation of the converging focus after light rays of different wavelengths pass through the lens. Fig. 28B shows an astigmatism curve of the optical imaging lens of embodiment 14, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 28C shows a distortion curve of the optical imaging lens of embodiment 14, which represents distortion magnitude values in the case of different angles of view. Fig. 28D shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 14, which represents the deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 28A to 28D, the optical imaging lens provided in embodiment 14 can achieve good imaging quality.

In summary, examples 1 to 14 each satisfy the relationship shown in table 43 below.

Condition/example	1	2	3	4	5	6	7	8	9	10	11	12	13	14
															f/EPD	1.68	1.76	1.68	1.60	1.58	1.65	1.83	1.90	1.85	1.75	1.68	1.64	1.53	1.49
TTL/ImgH	1.43	1.47	1.46	1.44	1.44	1.49	1.51	1.51	1.52	1.52	1.52	1.52	1.48	1.52
															f/f6	1.44	1.04	1.39	1.43	1.43	1.00	0.84	1.48	0.76	0.70	0.69	0.69	0.69	0.70
\|f/R13\|	3.04	3.11	2.87	2.98	2.97	2.98	3.02	3.09	2.55	2.85	3.05	3.05	3.05	3.05
															f/f7	-1.69	-1.39	-1.51	-1.69	-1.68	-1.69	-1.76	-1.81	-0.94	-0.89	-0.82	-0.80	-0.77	-0.72
f3/(f1+f2)	-0.54	-0.42	-0.13	-0.58	-0.59	-0.58	-0.53	-0.54	-0.43	-0.42	-0.38	-0.33	-0.16	-1.25
															f/f1	0.44	0.45	0.07	0.44	0.44	0.45	0.59	0.47	0.26	0.25	0.21	0.18	0.08	1.07
\|R5+R6\|/\|R5-R6\|	2.22	0.08	2.20	2.61	2.64	2.47	1.92	2.23	2.24	2.28	2.38	2.48	2.54	2.57
															\|f/f45\|	0.19	0.07	0.17	0.20	0.21	0.41	0.22	0.21	0.14	0.11	0.11	0.10	0.07	0.08
T34/T67	1.01	0.25	0.88	0.97	0.98	1.04	1.10	1.09	1.50	1.42	1.44	1.44	1.38	1.43
															∑CT/∑AT	2.16	1.36	1.89	2.09	2.12	2.02	1.96	2.07	1.99	2.02	2.13	2.18	2.29	2.39
R6/R3	1.39	2.58	1.95	1.31	1.32	1.33	1.14	1.31	1.82	1.83	1.84	1.85	1.92	1.92
															f23/∑AT	7.97	13.79	3.82	7.89	7.94	12.97	7.48	7.65	5.12	5.13	5.11	4.98	4.54	4.65
(V4+V5+V6)/4	33.15	33.15	33.15	32.98	33.15	33.15	33.15	33.15	33.15	33.15	33.15	33.15	33.15	33.15
															\|f/R9\|	0.49	0.50	0.44	0.57	0.57	0.90	1.03	0.70	0.64	0.57	0.51	0.42	0.32	0.30

Table 43

The present application also provides an imaging device, the electron-sensitive element of which may be a photosensitive coupling element (CCD) or a complementary metal oxide semiconductor element (CMOS). The imaging device may be a stand-alone image capturing apparatus such as a digital camera, or may be an imaging module integrated on a mobile electronic device such as a cellular phone. The imaging device is equipped with the optical imaging lens described above.

The foregoing description is only of the preferred embodiments of the present application and is presented as a description of the principles of the technology being utilized. It will be appreciated by persons skilled in the art that the scope of the invention referred to in this application is not limited to the specific combinations of features described above, but it is intended to cover other embodiments in which any combination of features described above or equivalents thereof is possible without departing from the spirit of the invention. Such as the above-described features and technical features having similar functions (but not limited to) disclosed in the present application are replaced with each other.

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, characterized in that,

the first lens has positive focal power, and the object side surface of the first lens is a convex surface;

the second lens has positive focal power, and the object side surface of the second lens is a convex surface;

the third lens has negative focal power, and the image side surface of the third lens is a concave surface;

the fourth lens has positive focal power;

the fifth lens has optical power;

the sixth lens has positive optical power;

the seventh lens has negative focal power;

The total effective focal length f of the optical imaging lens and the curvature radius R9 of the object side surface of the fifth lens meet the requirement that |f/R9| < 1.5;

the total effective focal length f of the optical imaging lens and the entrance pupil diameter EPD of the optical imaging lens meet the f/EPD of less than or equal to 1.95; and

the total effective focal length f of the optical imaging lens and the effective focal length f6 of the sixth lens meet the requirement that f/f6 is more than 0.6;

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

2. The optical imaging lens as claimed in claim 1, wherein an on-axis distance TTL from an object side surface of the first lens to an imaging surface of the optical imaging lens is equal to or less than 1.6 as compared with a half ImgH of a diagonal length of an effective pixel region on the imaging surface of the optical imaging lens.

3. The optical imaging lens as claimed in claim 2, wherein an effective focal length f1 of the first lens and a total effective focal length f of the optical imaging lens satisfy 0 < f/f 1.ltoreq.1.2.

4. The optical imaging lens according to claim 2, wherein an effective focal length f1 of the first lens, an effective focal length f2 of the second lens, and an effective focal length f3 of the third lens satisfy-1.5 < f 3/(f1+f2) < 0.

5. The optical imaging lens of claim 2, wherein an effective focal length f7 of the seventh lens and a total effective focal length f of the optical imaging lens satisfy-2 < f/f7 < 0.

6. The optical imaging lens as claimed in claim 2, wherein a radius of curvature R6 of the image side of the third lens element and a radius of curvature R3 of the object side of the second lens element satisfy 1 < R6/R3 < 3.

7. The optical imaging lens as claimed in claim 2, wherein a radius of curvature R5 of the third lens object-side surface and a radius of curvature R6 of the third lens image-side surface satisfy |r5+r6|/|r5-r6| < 3.

8. The optical imaging lens as claimed in claim 2, wherein a sum Σat of a center thickness Σct of the first lens to the seventh lens on the optical axis and a distance between any adjacent two lenses of the first lens to the seventh lens on the optical axis satisfies 1 < Σct/Σat < 2.5, respectively.

9. The optical imaging lens according to claim 2, wherein a separation distance T34 of the third lens and the fourth lens on the optical axis and a separation distance T67 of the sixth lens and the seventh lens on the optical axis satisfy 0 < T34/T67.ltoreq.1.5.

10. The optical imaging lens according to claim 2, wherein a combined focal length f23 of the second lens and the third lens and a sum Σat of a distance between any adjacent two lenses of the first lens to the seventh lens on the optical axis satisfy 3.5 < f23/Σat < 14.5.

11. The optical imaging lens according to claim 2, wherein an abbe number V4 of the fourth lens, an abbe number V5 of the fifth lens, and an abbe number V6 of the sixth lens satisfy (v4+v5+v6)/4.ltoreq.45.