CN211086744U - Optical imaging lens - Google Patents

Optical imaging lens Download PDF

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CN211086744U
CN211086744U CN201921312768.7U CN201921312768U CN211086744U CN 211086744 U CN211086744 U CN 211086744U CN 201921312768 U CN201921312768 U CN 201921312768U CN 211086744 U CN211086744 U CN 211086744U
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lens
optical imaging
image
optical
imaging lens
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陈晨
张凯元
徐标
戴付建
赵烈烽
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Zhejiang Sunny Optics Co Ltd
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Zhejiang Sunny Optics Co Ltd
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Abstract

The application discloses an optical imaging lens, which sequentially comprises a first lens with positive focal power, a second lens with negative focal power, a third lens with focal power, a fourth lens with focal power, a fifth lens with focal power, a sixth lens with positive focal power, a sixth lens with convex object-side surface and convex image-side surface and a seventh lens with negative focal power from an object side to an image plane of the optical imaging lens from the object side to the image plane, wherein the distance TT L between the object side of the first lens and the image plane of the optical imaging lens on the optical axis and the half ImgH of the diagonal line of an effective pixel area on the image plane of the optical imaging lens meet the requirement that ImgH/(TT L/ImgH) >5.0mm, so that the optical imaging lens has the characteristics of large image plane, large aperture, high-quality imaging and the like.

Description

Optical imaging lens
Technical Field
The present application relates to the field of optical elements, and in particular, to an optical imaging lens.
Background
In recent years, imaging lenses based on CMOS and CCD have been widely used in various fields. With the continuous improvement of the performance of photosensitive elements such as CMOS, CCD and the like and the gradual reduction of the pixel size, higher requirements are put forward on corresponding optical imaging lenses. Meanwhile, users have increasingly high imaging requirements for imaging lenses mounted on, for example, portable electronic products, and the imaging lenses are required to be capable of clearly imaging scenes in various shooting scenes. How to satisfy the miniaturization and satisfy the characteristics of large aperture, large image plane, high pixel and the like is a problem to be solved urgently at present.
SUMMERY OF THE UTILITY MODEL
The present application provides an optical imaging lens applicable to portable electronic products that may solve, at least, or in part, at least one of the above-mentioned disadvantages of the related art.
An aspect of the present application provides an optical imaging lens, in order from an object side to an image side along an optical axis, comprising: a first lens having a positive optical power; a second lens having a negative optical power; a third lens having optical power; a fourth lens having an optical power; a fifth lens having a refractive power, an object-side surface of which is convex; the sixth lens with positive focal power has a convex object-side surface and a convex image-side surface; and a seventh lens having a negative optical power.
In one embodiment, the distance TT L from the object side surface of the first lens to the imaging surface of the optical imaging lens on the optical axis and the half of the diagonal length ImgH of the effective pixel area on the imaging surface of the optical imaging lens can satisfy ImgH/(TT L/ImgH) >5.0 mm.
In one embodiment, the total effective focal length f of the optical imaging lens and the maximum half field angle Semi-FOV of the optical imaging lens can satisfy 6.0mm < f × tan (Semi-FOV) < 7.0 mm.
In one embodiment, the effective focal length f1 of the first lens, the radius of curvature R1 of the object-side surface of the first lens, and the radius of curvature R2 of the image-side surface of the first lens may satisfy: 0.3 < f1/(R1+ R2) < 1.1.
In one embodiment, the total effective focal length f of the optical imaging lens, the effective focal length f6 of the sixth lens and the effective focal length f7 of the seventh lens may satisfy: 0.2 < (f6+ f7)/f < 0.7.
In one embodiment, the radius of curvature R11 of the object-side surface of the sixth lens and the radius of curvature R10 of the image-side surface of the fifth lens may satisfy: 0.3 < R11/R10 < 1.0.
In one embodiment, the distance T56 between the fifth lens and the sixth lens on the optical axis, the central thickness CT6 of the sixth lens on the optical axis, the distance T67 between the sixth lens and the seventh lens on the optical axis, the central thickness CT7 of the seventh lens on the optical axis, and the distance TT L between the object side surface of the first lens and the imaging surface of the optical imaging lens on the optical axis can satisfy 1.7 < (T56+ CT6+ T67+ CT7)/TT L× 5 < 2.2.
In one embodiment, the maximum half field angle Semi-FOV of the optical imaging lens may satisfy: 40 < Semi-FOV < 45.
In one embodiment, the total effective focal length f of the optical imaging lens, the radius of curvature R3 of the object-side surface of the second lens, and the radius of curvature R4 of the image-side surface of the second lens may satisfy: f/(R3+ R4) < 1.0 < 0.3.
In one embodiment, the combined focal length f123 of the first lens, the second lens and the third lens and the total effective focal length f of the optical imaging lens may satisfy: f123/f is more than 0.8 and less than 1.3.
In one embodiment, an on-axis distance SAG72 from an intersection point of an image-side surface of the seventh lens and the optical axis to an effective radius vertex of the image-side surface of the seventh lens and an on-axis distance SAG62 from an intersection point of an image-side surface of the sixth lens and the optical axis to an effective radius vertex of the image-side surface of the sixth lens may satisfy: 0.8 < SAG72/SAG62 < 1.5.
In one embodiment, an on-axis distance SAG51 from an intersection point of an object-side surface of the fifth lens and the optical axis to an effective radius vertex of the object-side surface of the fifth lens, an on-axis distance SAG52 from an intersection point of an image-side surface of the fifth lens and the optical axis to an effective radius vertex of the image-side surface of the fifth lens, and a center thickness CT5 of the fifth lens on the optical axis may satisfy: 1.6 < | SAG51+ SAG52|/CT5 < 2.6.
In one embodiment, the maximum effective radius DT11 of the object-side surface of the first lens, the maximum effective radius DT21 of the object-side surface of the second lens, the maximum effective radius DT31 of the object-side surface of the third lens, the maximum effective radius DT41 of the object-side surface of the fourth lens, the maximum effective radius DT51 of the object-side surface of the fifth lens, the maximum effective radius DT61 of the object-side surface of the sixth lens, and the maximum effective radius DT71 of the object-side surface of the seventh lens may satisfy: 2.3 < (DT41+ DT51+ DT61+ DT71)/(DT11+ DT21+ DT31) < 2.8.
The optical imaging lens provided by the application adopts a plurality of lenses, such as the first lens to the seventh lens, and by reasonably controlling the relationship between the image height and the total optical length of the optical imaging lens and optimally setting the focal power and the surface type of each lens, the optical imaging lens can meet the requirements of miniaturization and realize the characteristics of large image surface, large aperture, 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 when taken in conjunction with the accompanying drawings. In the drawings:
fig. 1 shows a schematic structural view of an optical imaging lens according to embodiment 1 of the present application;
fig. 2A to 2D show an on-axis chromatic aberration curve, an astigmatic curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of the optical imaging lens of embodiment 1;
fig. 3 is a schematic structural view showing an optical imaging lens according to embodiment 2 of the present application;
fig. 4A to 4D show an on-axis chromatic aberration curve, an astigmatic curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of the optical imaging lens of embodiment 2;
fig. 5 is a schematic structural view showing an optical imaging lens according to embodiment 3 of the present application;
fig. 6A to 6D show an on-axis chromatic aberration curve, an astigmatic curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of the optical imaging lens of embodiment 3;
fig. 7 is a schematic structural view showing an optical imaging lens according to embodiment 4 of the present application;
fig. 8A to 8D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of the optical imaging lens of embodiment 4;
fig. 9 is a schematic structural view showing an optical imaging lens according to embodiment 5 of the present application;
fig. 10A to 10D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of the optical imaging lens of embodiment 5;
fig. 11 is a schematic structural view showing an optical imaging lens according to embodiment 6 of the present application;
fig. 12A to 12D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of the optical imaging lens of embodiment 6;
fig. 13 is a schematic structural view showing an optical imaging lens according to embodiment 7 of the present application;
fig. 14A to 14D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of an optical imaging lens of embodiment 7;
fig. 15 is a schematic structural view showing an optical imaging lens according to embodiment 8 of the present application;
fig. 16A to 16D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of an optical imaging lens of embodiment 8;
fig. 17 is a schematic structural view showing an optical imaging lens according to embodiment 9 of the present application;
fig. 18A to 18D show an on-axis chromatic aberration curve, an astigmatic curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of an optical imaging lens of embodiment 9;
fig. 19 is a schematic structural view showing an optical imaging lens according to embodiment 10 of the present application;
fig. 20A to 20D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of the optical imaging lens of embodiment 10.
Detailed Description
For a better understanding of the present application, various aspects of the present application will be described in more detail with reference to the accompanying drawings. It should be understood that the detailed description is merely illustrative of exemplary embodiments of the present application and does not limit the scope of the present application in any way. Like reference numerals refer to like elements throughout the specification. The expression "and/or" includes any and all combinations of one or more of the associated listed items.
It should be noted that in this specification, the expressions first, second, third, etc. are used only to distinguish one feature from another, and do not represent any limitation on the features. Thus, the first lens discussed below may also be referred to as the second lens or the third lens without departing from the teachings of the present application.
In the drawings, the thickness, size, and shape of the lens have been slightly exaggerated for convenience of explanation. In particular, the shapes of the spherical or aspherical surfaces shown in the drawings are shown by way of example. That is, the shape of the spherical surface or the aspherical surface is not limited to the shape of the spherical surface or the aspherical surface shown in the drawings. The figures are purely diagrammatic and not drawn to scale.
Herein, the paraxial region refers to a region near the optical axis. If the lens surface is convex and the convex position is not defined, it means that the lens surface is convex at least in the paraxial region; if the lens surface is concave and the concave position is not defined, it means that the lens surface is concave at least in the paraxial region. The surface of each lens closest to the object is called the object side surface of the lens, and the surface of each lens closest to the imaging surface is called the image side surface of the lens.
It will be further understood that the terms "comprises," "comprising," "has," "having," "includes" and/or "including," when used in this specification, specify the presence of stated features, elements, and/or components, but do not preclude the presence or addition of one or more other features, elements, components, and/or groups thereof. Moreover, when a statement such as "at least one of" appears after a list of listed features, the entirety of the listed features is modified rather than modifying individual elements in the list. Furthermore, when describing embodiments of the present application, the use of "may" mean "one or more embodiments of the present application. Also, the term "exemplary" is intended to refer to an example or illustration.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
The features, principles, and other aspects of the present application are described in detail below.
An optical imaging lens according to an exemplary embodiment of the present application may include seven lenses having optical powers, i.e., a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. The seven lenses are arranged in sequence from the object side to the image side along the optical axis. In the first to seventh lenses, each of adjacent two lenses may have an air space therebetween.
In an exemplary embodiment, the first lens may have a positive optical power; the second lens may have a negative optical power; the third lens may have a positive optical power or a negative optical power; the fourth lens may have a positive power or a negative power; the fifth lens can have positive focal power or negative focal power, and the object side surface of the fifth lens is a convex surface; the sixth lens element has positive focal power, and has a convex object-side surface and a convex image-side surface; and the seventh lens may have a negative optical power. The optical focal power and the surface type of each lens in the optical system are reasonably matched, so that the low-order aberration of the optical system can be effectively balanced, and the tolerance sensitivity is reduced.
In an exemplary embodiment, the object-side surface of the first lens may be convex and the image-side surface may be concave.
In an exemplary embodiment, the object-side surface of the second lens element may be convex and the image-side surface may be concave.
In an exemplary embodiment, the object side surface of the third lens may be convex.
In an exemplary embodiment, a distance TT L on the optical axis from the object side surface of the first lens to the imaging surface of the optical imaging lens and ImgH which is half the length of the diagonal line of the effective pixel region on the imaging surface of the optical imaging lens may satisfy ImgH/(TT L/ImgH) >5.0mm, for example, 5.0mm < ImgH/(TT L/ImgH) < 6.0 mm.
In an exemplary embodiment, the total effective focal length f of the optical imaging lens and the maximum half field angle Semi-FOV of the optical imaging lens may satisfy 6.0mm < f × tan (Semi-FOV) < 7.0mm, for example, 6.0mm < f × tan (Semi-FOV) < 6.5 mm.
In an exemplary embodiment, the effective focal length f1 of the first lens, the radius of curvature R1 of the object-side surface of the first lens, and the radius of curvature R2 of the image-side surface of the first lens may satisfy: 0.3 < f1/(R1+ R2) < 1.1. The mutual relation among the effective focal length of the first lens, the curvature radius of the object side surface of the first lens and the curvature radius of the image side surface of the first lens is reasonably controlled, the diopter of incident light on the first lens can be effectively controlled, the contribution of the first lens to the fifth-order spherical aberration of the optical system can be balanced, and the imaging quality of the optical system can be improved.
In an exemplary embodiment, the total effective focal length f of the optical imaging lens, the effective focal length f6 of the sixth lens, and the effective focal length f7 of the seventh lens may satisfy: 0.2 < (f6+ f7)/f < 0.7, e.g., 0.30 < (f6+ f7)/f < 0.55. The mutual relation among the effective focal length of the sixth lens, the effective focal length of the seventh lens and the total effective focal length of the optical imaging lens is reasonably controlled, and the contribution amount of the sixth lens and the seventh lens to the aberration of the whole optical system can be effectively controlled. The aberration generated by the first lens to the fifth lens is compensated by the residual aberration after the balance of the sixth lens and the seventh lens, so that the imaging quality of the optical system is improved.
In an exemplary embodiment, a radius of curvature R11 of the object-side surface of the sixth lens and a radius of curvature R10 of the image-side surface of the fifth lens may satisfy: 0.3 < R11/R10 < 1.0. The ratio of the curvature radius of the object side surface of the sixth lens to the curvature radius of the image side surface of the fifth lens is controlled within a reasonable numerical range, so that the deflection angle of marginal rays of an optical system can be reasonably adjusted, and the sensitivity of the system is effectively reduced.
In an exemplary embodiment, the distance T56 between the fifth lens and the sixth lens on the optical axis, the central thickness CT6 of the sixth lens on the optical axis, the distance T67 between the sixth lens and the seventh lens on the optical axis, the central thickness CT7 of the seventh lens on the optical axis, and the distance TT L between the object-side surface of the first lens and the imaging surface of the optical imaging lens on the optical axis may satisfy 1.7 < (T56+ CT6+ T67+ CT7)/TT L× 5 < 2.2.
In an exemplary embodiment, the maximum half field angle Semi-FOV of the optical imaging lens may satisfy: 40 ° < Semi-FOV < 45 °, for example, 41 ° < Semi-FOV < 44 °. By reasonably setting the maximum half field angle of the optical system, the imaging range of the system can be effectively controlled.
In an exemplary embodiment, the total effective focal length f of the optical imaging lens, the radius of curvature R3 of the object-side surface of the second lens, and the radius of curvature R4 of the image-side surface of the second lens may satisfy: f/(R3+ R4) < 1.0 < 0.3. By reasonably controlling the mutual relation of the three components, the optical system can well realize light path deflection and balance the high-grade spherical aberration generated by the optical system.
In an exemplary embodiment, the combined focal length f123 of the first lens, the second lens and the third lens and the total effective focal length f of the optical imaging lens may satisfy: 0.8 < f123/f < 1.3, e.g., 0.9 < f123/f < 1.3. The proportional relation between the combined focal length of the first lens, the second lens and the third lens and the total effective focal length of the optical imaging lens is reasonably controlled, the distribution of the focal power of the first lens, the second lens and the third lens is facilitated, the off-axis aberration of the optical system is balanced, and the aberration correcting capability of the system is improved.
In an exemplary embodiment, an on-axis distance SAG72 from an intersection point of an image-side surface of the seventh lens and the optical axis to an effective radius vertex of the image-side surface of the seventh lens and an on-axis distance SAG62 from an intersection point of an image-side surface of the sixth lens and the optical axis to an effective radius vertex of the image-side surface of the sixth lens may satisfy: 0.8 < SAG72/SAG62 < 1.5. The ratio of the image-side vector height of the seventh lens to the image-side vector height of the sixth lens is controlled within a reasonable numerical range, so that the shape, processing, forming and assembling of the two lenses with larger apertures of the sixth lens and the seventh lens are guaranteed to be at a better level, and the production yield of the whole optical system is improved.
In an exemplary embodiment, an on-axis distance SAG51 from an intersection point of an object-side surface of the fifth lens and the optical axis to an effective radius vertex of the object-side surface of the fifth lens, an on-axis distance SAG52 from an intersection point of an image-side surface of the fifth lens and the optical axis to an effective radius vertex of the image-side surface of the fifth lens, and a center thickness CT5 of the fifth lens on the optical axis may satisfy: 1.6 < | SAG51+ SAG52|/CT5 < 2.6. The ratio of the sum of the object-side vector height of the fifth lens and the image-side vector height of the fifth lens to the central thickness of the fifth lens on the optical axis is controlled within a reasonable numerical range, so that the processing and forming of the fifth lens are guaranteed, the sensitivity is reduced, and the imaging quality of the optical system is improved.
In an exemplary embodiment, the maximum effective radius DT11 of the object-side surface of the first lens, the maximum effective radius DT21 of the object-side surface of the second lens, the maximum effective radius DT31 of the object-side surface of the third lens, the maximum effective radius DT41 of the object-side surface of the fourth lens, the maximum effective radius DT51 of the object-side surface of the fifth lens, the maximum effective radius DT61 of the object-side surface of the sixth lens, and the maximum effective radius DT71 of the object-side surface of the seventh lens may satisfy: 2.3 < (DT41+ DT51+ DT61+ DT71)/(DT11+ DT21+ DT31) < 2.8. By controlling the ratio of the sum of the maximum effective radii of the fourth lens to the seventh lens to the sum of the maximum effective radii of the first lens to the third lens within a reasonable numerical range, the uniformity of the shape transition of each lens of the whole optical system can be effectively controlled, and the reliability of the assembly of the subsequent optical system can be ensured. Meanwhile, the range of incident light rays can be effectively limited, light rays with poor quality at the edge of the system are removed, off-axis aberration is reduced, and the resolution of the lens is effectively improved.
In an exemplary embodiment, the optical imaging lens may further include a diaphragm. The diaphragm may be disposed at an appropriate position as required. For example, a diaphragm may be disposed between the object side and the first lens. Optionally, the optical imaging lens may further include a filter for correcting color deviation and/or a protective glass for protecting a photosensitive element on the imaging surface.
The application provides an optical imaging lens with characteristics of large image plane, large aperture, ultra-thin and the like. The optical imaging lens according to the above-described embodiment of the present application may employ a plurality of lenses, for example, seven lenses as described above. By reasonably distributing the focal power and the surface shape of each lens, the central thickness of each lens, the on-axis distance between each lens and the like, incident light can be effectively converged, the optical total length of the imaging lens is reduced, the machinability of the imaging lens is improved, and the optical imaging lens is more beneficial to production and processing.
In an exemplary embodiment, at least one of the mirror surfaces of each lens is an aspheric mirror surface, i.e., at least one of the object side surface of the first lens to the image side surface of the seventh lens is an aspheric mirror surface. The aspheric lens is characterized in that: the curvature varies continuously from the center of the lens to the periphery of the lens. Unlike a spherical lens having a constant curvature from the center of the lens to the periphery of the lens, an aspherical lens has better curvature radius characteristics, and has advantages of improving distortion aberration and improving astigmatic aberration. After the aspheric lens is adopted, the aberration generated during imaging can be eliminated as much as possible, thereby improving the imaging quality. Optionally, at least one of an object-side surface and an image-side surface of each of the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens, and the seventh lens is an aspheric mirror surface. Optionally, each of the first, second, third, fourth, fifth, sixth, and seventh lenses has an object-side surface and an image-side surface that are aspheric mirror surfaces.
The present application also provides an imaging device whose electron photosensitive element may be a photo-coupled device (CCD) or a complementary metal oxide semiconductor device (CMOS). The imaging device may be a stand-alone imaging device such as a digital camera, or may be an imaging module integrated on a mobile electronic device such as a mobile phone. The imaging device is equipped with the optical imaging lens described above.
However, it will be appreciated by those skilled in the art that the number of lenses constituting an optical imaging lens may be varied to achieve the various results and advantages described in the present specification without departing from the claimed subject matter. For example, although seven lenses are exemplified in the embodiment, the optical imaging lens is not limited to include seven lenses. The optical imaging lens may also include other numbers of lenses, if desired.
Specific examples of an optical imaging lens applicable to the above-described embodiments are further described below with reference to the drawings.
Example 1
An optical imaging lens according to embodiment 1 of the present application is described below with reference to fig. 1 to 2D. Fig. 1 is a schematic view showing a structure of an optical imaging lens according to embodiment 1 of the present application.
As shown in fig. 1, the optical imaging lens, in order from an object side to an image side along an optical axis, comprises: a stop STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, a filter E8, and an image forming surface S17.
The first lens element E1 has positive power, and has a convex object-side surface S1 and a concave image-side surface S2. The second lens element E2 has negative power, and has a convex object-side surface S3 and a concave image-side surface S4. The third lens element E3 has positive power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has positive power, and has a concave object-side surface S7 and a convex image-side surface S8. The fifth lens element E5 has negative power, and has a convex object-side surface S9 and a concave image-side surface S10. The sixth lens element E6 has positive power, and has a convex object-side surface S11 and a convex image-side surface S12. The seventh lens element E7 has negative power, and has a concave object-side surface S13 and a concave image-side surface S14. Filter E8 has an object side S15 and an image side S16. The light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging surface S17.
Table 1 shows a basic parameter table of the optical imaging lens of embodiment 1, in which the units of the radius of curvature, the thickness, and the focal length are all millimeters (mm).
Figure BDA0002166083620000061
Figure BDA0002166083620000071
TABLE 1
In the present embodiment, the total effective focal length f of the optical imaging lens is 6.65mm, the distance TT L on the optical axis from the object-side surface S1 of the first lens E1 to the imaging surface S17 is 7.48mm, the half ImgH of the diagonal length of the effective pixel area on the imaging surface S17 is 6.48mm, and the maximum half field angle Semi-FOV of the optical imaging lens is 43.8 °.
In embodiment 1, the object-side surface and the image-side surface of any one of the first lens E1 through the seventh lens E7 are aspheric surfaces, and the surface shape x of each aspheric lens can be defined by, but is not limited to, the following aspheric surface formula:
Figure BDA0002166083620000072
wherein x is the rise of the distance from the aspheric surface vertex to the aspheric surface vertex when the aspheric surface is at the position with the height of h along the optical axis direction; c is the paraxial curvature of the aspheric surface, c being 1/R (i.e., paraxial curvature c is the inverse of radius of curvature R in table 1 above); k is a conic coefficient; ai is the correction coefficient of the i-th order of the aspherical surface. Table 2 below shows the high-order coefficient A of each of the aspherical mirror surfaces S1 to S14 used in example 14、A6、A8、A10、A12、A14、A16、A18And A20。
Flour mark A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -2.1900E-03 6.5250E-03 -1.5430E-02 2.1193E-02 -1.8010E-02 9.4810E-03 -3.0200E-03 5.3000E-04 -4.0000E-05
S2 -1.5060E-02 1.3442E-02 -2.5050E-02 3.3774E-02 -3.4430E-02 2.3416E-02 -9.8400E-03 2.3010E-03 -2.3000E-04
S3 -2.3150E-02 1.8774E-02 -2.5290E-02 3.0707E-02 -2.9380E-02 1.9654E-02 -8.2300E-03 1.9260E-03 -1.9000E-04
S4 -1.2060E-02 1.5283E-02 -1.6650E-02 1.7959E-02 -1.5900E-02 1.0621E-02 -4.6700E-03 1.1840E-03 -1.3000E-04
S5 7.3440E-03 -3.6000E-03 2.7397E-02 -5.1490E-02 5.5861E-02 -3.6780E-02 1.4590E-02 -3.2000E-03 2.9800E-04
S6 2.9440E-03 -1.1330E-02 4.6430E-02 -9.4420E-02 1.1681E-01 -8.9080E-02 4.1013E-02 -1.0450E-02 1.1350E-03
S7 -2.9100E-02 1.8896E-02 -5.7250E-02 9.6130E-02 -1.0881E-01 7.8614E-02 -3.4840E-02 8.5880E-03 -9.0000E-04
S8 -3.6810E-02 3.2739E-02 -6.0580E-02 7.0497E-02 -5.4470E-02 2.7082E-02 -8.3000E-03 1.4260E-03 -1.0000E-04
S9 -4.4060E-02 2.1033E-02 -1.4910E-02 9.3250E-03 -4.6700E-03 1.5570E-03 -3.2000E-04 3.6400E-05 -1.7000E-06
S10 -1.3340E-02 -6.0600E-03 7.0130E-03 -3.5100E-03 1.0100E-03 -1.8000E-04 1.9500E-05 -1.2000E-06 3.1300E-08
S11 1.2614E-02 -1.3080E-02 4.5310E-03 -1.2500E-03 2.3800E-04 -3.0000E-05 2.3600E-06 -1.1000E-07 2.0800E-09
S12 2.0711E-02 -9.6100E-03 1.9360E-03 -2.8000E-04 2.7700E-05 -1.2000E-06 -2.2000E-08 4.0900E-09 -1.1000E-10
S13 -6.8500E-03 1.3300E-04 5.8600E-04 -1.1000E-04 9.8900E-06 -5.1000E-07 1.5900E-08 -2.7000E-10 2.0200E-12
S14 -1.7520E-02 3.4460E-03 -4.9000E-04 5.2600E-05 -4.4000E-06 2.5700E-07 -9.4000E-09 1.9000E-10 -1.7000E-12
TABLE 2
Fig. 2A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 1, which represents the deviation of the convergent focal points of light rays of different wavelengths after passing through the lens. Fig. 2B shows an astigmatism curve representing a meridional field curvature and a sagittal field curvature of the optical imaging lens of embodiment 1. Fig. 2C shows a distortion curve of the optical imaging lens of embodiment 1, which represents distortion magnitude values corresponding to different image heights. Fig. 2D shows a chromatic aberration of magnification curve of the optical imaging lens of embodiment 1, which represents a deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 2A to 2D, the optical imaging lens according to embodiment 1 can achieve good imaging quality.
Example 2
An optical imaging lens according to embodiment 2 of the present application is described below with reference to fig. 3 to 4D. Fig. 3 shows a schematic structural diagram of an optical imaging lens according to embodiment 2 of the present application.
As shown in fig. 3, the optical imaging lens, in order from an object side to an image side along an optical axis, comprises: a stop STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, a filter E8, and an image forming surface S17.
The first lens element E1 has positive power, and has a convex object-side surface S1 and a concave image-side surface S2. The second lens element E2 has negative power, and has a convex object-side surface S3 and a concave image-side surface S4. The third lens element E3 has positive power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has negative power, and has a concave object-side surface S7 and a convex image-side surface S8. The fifth lens element E5 has negative power, and has a convex object-side surface S9 and a concave image-side surface S10. The sixth lens element E6 has positive power, and has a convex object-side surface S11 and a convex image-side surface S12. The seventh lens element E7 has negative power, and has a concave object-side surface S13 and a concave image-side surface S14. Filter E8 has an object side S15 and an image side S16. The light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging surface S17.
In the present embodiment, the total effective focal length f of the optical imaging lens is 6.65mm, the distance TT L on the optical axis from the object-side surface S1 of the first lens E1 to the imaging surface S17 is 7.48mm, the half ImgH of the diagonal length of the effective pixel area on the imaging surface S17 is 6.40mm, and the maximum half field angle Semi-FOV of the optical imaging lens is 43.5 °.
Table 3 shows a basic parameter table of the optical imaging lens of embodiment 2, in which the units of the radius of curvature, the thickness, and the focal length are all millimeters (mm).
Figure BDA0002166083620000081
TABLE 3
In embodiment 2, both the object-side surface and the image-side surface of any one of the first lens E1 through the seventh lens E7 are aspheric. Table 4 below shows the high-order coefficient A of each of the aspherical mirror surfaces S1-S14 used in example 24、A6、A8、A10、A12、A14、A16、A18And A20。
Flour mark A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -2.0300E-03 4.5120E-03 -9.4100E-03 1.1638E-02 -9.2700E-03 4.6830E-03 -1.4600E-03 2.5700E-04 -2.0000E-05
S2 -1.6810E-02 3.5239E-02 -4.9980E-02 4.3145E-02 -2.3190E-02 6.9870E-03 -7.7000E-04 -1.0000E-04 2.3000E-05
S3 -3.2380E-02 3.9293E-02 -5.7750E-02 5.6097E-02 -3.6430E-02 1.5440E-02 -3.9700E-03 5.5200E-04 -3.2000E-05
S4 -1.2220E-02 2.3641E-02 -4.3160E-02 5.8018E-02 -5.0390E-02 2.7831E-02 -9.2300E-03 1.6460E-03 -1.2000E-04
S5 7.9570E-03 1.0870E-03 1.9230E-02 -4.7900E-02 6.2967E-02 -4.8280E-02 2.1893E-02 -5.4300E-03 5.6700E-04
S6 -7.1000E-04 8.2010E-03 -1.4960E-02 1.8937E-02 -1.1170E-02 4.7500E-04 3.3040E-03 -1.7100E-03 2.8300E-04
S7 -2.9630E-02 3.0730E-02 -9.5360E-02 1.6783E-01 -1.9224E-01 1.3924E-01 -6.1670E-02 1.5205E-02 -1.6000E-03
S8 -3.6120E-02 3.5166E-02 -6.8050E-02 8.2663E-02 -6.6490E-02 3.4159E-02 -1.0770E-02 1.8950E-03 -1.4000E-04
S9 -5.0630E-02 1.8556E-02 -1.3180E-02 9.6270E-03 -5.9100E-03 2.3820E-03 -5.9000E-04 8.2500E-05 -4.8000E-06
S10 -4.3840E-02 1.1733E-02 -3.2000E-03 1.0230E-03 -3.4000E-04 7.7300E-05 -1.0000E-05 6.7800E-07 -1.8000E-08
S11 4.4100E-04 -3.5600E-03 2.3800E-04 4.9100E-05 -9.5000E-06 7.7300E-07 -3.6000E-08 9.5900E-10 -1.1000E-11
S12 1.4382E-02 -4.3200E-03 5.2800E-04 -2.4000E-05 -1.7000E-06 3.1100E-07 -2.0000E-08 6.1900E-10 -8.0000E-12
S13 -3.3950E-02 1.2173E-02 -1.9000E-03 1.8000E-04 -1.1000E-05 4.5700E-07 -1.2000E-08 1.8200E-10 -1.2000E-12
S14 -2.4520E-02 5.5230E-03 -7.7000E-04 6.5800E-05 -3.7000E-06 1.3200E-07 -2.8000E-09 2.9800E-11 -9.6000E-14
TABLE 4
Fig. 4A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 2, which represents the deviation of the convergent focal points of light rays of different wavelengths after passing through the lens. Fig. 4B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging lens of embodiment 2. Fig. 4C shows a distortion curve of the optical imaging lens of embodiment 2, which represents distortion magnitude values corresponding to different image heights. Fig. 4D shows a chromatic aberration of magnification curve of the optical imaging lens of embodiment 2, which represents the deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 4A to 4D, the optical imaging lens according to embodiment 2 can achieve good imaging quality.
Example 3
An optical imaging lens according to embodiment 3 of the present application is described below with reference to fig. 5 to 6D. Fig. 5 shows a schematic structural diagram of an optical imaging lens according to embodiment 3 of the present application.
As shown in fig. 5, the optical imaging lens, in order from an object side to an image side along an optical axis, comprises: a stop STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, a filter E8, and an image forming surface S17.
The first lens element E1 has positive power, and has a convex object-side surface S1 and a concave image-side surface S2. The second lens element E2 has negative power, and has a convex object-side surface S3 and a concave image-side surface S4. The third lens element E3 has negative power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has positive power, and has a convex object-side surface S7 and a convex image-side surface S8. The fifth lens element E5 has negative power, and has a convex object-side surface S9 and a concave image-side surface S10. The sixth lens element E6 has positive power, and has a convex object-side surface S11 and a convex image-side surface S12. The seventh lens element E7 has negative power, and has a concave object-side surface S13 and a concave image-side surface S14. Filter E8 has an object side S15 and an image side S16. The light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging surface S17.
In the present embodiment, the total effective focal length f of the optical imaging lens is 6.63mm, the distance TT L on the optical axis from the object-side surface S1 of the first lens E1 to the imaging surface S17 is 7.50mm, the half ImgH of the diagonal length of the effective pixel area on the imaging surface S17 is 6.35mm, and the maximum half field angle Semi-FOV of the optical imaging lens is 43.3 °.
Table 5 shows a basic parameter table of the optical imaging lens of embodiment 3, in which the units of the radius of curvature, the thickness, and the focal length are all millimeters (mm).
Figure BDA0002166083620000091
Figure BDA0002166083620000101
TABLE 5
In embodiment 3, both the object-side surface and the image-side surface of any one of the first lens E1 through the seventh lens E7 are aspheric. Table 6 below shows the high-order coefficient A of each of the aspherical mirror surfaces S1-S14 used in example 34、A6、A8、A10、A12、A14、A16、A18And A20。
Flour mark A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -8.5000E-04 5.8190E-03 -1.0970E-02 1.3712E-02 -1.0980E-02 5.6460E-03 -1.8100E-03 3.2900E-04 -2.6142E-05
S2 -6.7000E-03 5.4700E-05 2.0437E-02 -3.5360E-02 3.1864E-02 -1.7290E-02 5.6720E-03 -1.0300E-03 7.9843E-05
S3 -8.7500E-03 3.9390E-03 1.1375E-02 -1.9410E-02 1.4815E-02 -5.8500E-03 1.0960E-03 -3.1000E-05 -1.2422E-05
S4 3.1300E-04 -6.3000E-03 3.4322E-02 -7.7510E-02 1.0425E-01 -8.6500E-02 4.3629E-02 -1.2230E-02 1.4678E-03
S5 -1.3640E-02 -7.0000E-04 1.7200E-03 -1.0510E-02 2.1633E-02 -2.3130E-02 1.4065E-02 -4.5600E-03 6.1403E-04
S6 -1.3890E-02 5.8910E-03 -6.6700E-03 6.9000E-03 -2.1200E-03 -1.2600E-03 1.7210E-03 -6.9000E-04 9.6779E-05
S7 -2.5420E-02 6.1750E-03 -6.8500E-03 4.8900E-04 5.9670E-03 -6.2000E-03 3.0030E-03 -7.1000E-04 6.5751E-05
S8 -2.8100E-02 9.7430E-03 -1.3510E-02 1.1947E-02 -8.2600E-03 4.0400E-03 -1.2700E-03 2.2700E-04 -1.7256E-05
S9 -4.6770E-02 9.6670E-03 1.4960E-03 -3.8700E-03 1.5330E-03 -1.9000E-04 -3.4000E-05 1.2500E-05 -9.9500E-07
S10 -5.1580E-02 8.2060E-03 1.3620E-03 -1.6300E-03 4.6000E-04 -4.8000E-05 -5.1000E-07 4.1200E-07 -2.0283E-08
S11 -1.0510E-02 -7.4600E-03 2.3090E-03 -5.6000E-04 9.3700E-05 -9.3000E-06 5.2000E-07 -1.5000E-08 1.7775E-10
S12 2.4527E-02 -1.0810E-02 1.5690E-03 -4.0000E-05 -2.2000E-05 3.8300E-06 -3.0000E-07 1.2000E-08 -1.9255E-10
S13 -2.3140E-02 2.7430E-03 4.9700E-04 -1.3000E-04 1.2200E-05 -6.4000E-07 1.9600E-08 -3.3000E-10 2.3178E-12
S14 -1.8020E-02 1.2050E-03 2.2100E-04 -6.0000E-05 6.2000E-06 -3.5000E-07 1.1500E-08 -2.0000E-10 1.5334E-12
TABLE 6
Fig. 6A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 3, which represents the deviation of the convergent focal points of light rays of different wavelengths after passing through the lens. Fig. 6B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging lens of embodiment 3. Fig. 6C shows a distortion curve of the optical imaging lens of embodiment 3, which represents distortion magnitude values corresponding to different image heights. Fig. 6D shows a chromatic aberration of magnification curve of the optical imaging lens of embodiment 3, which represents a deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 6A to 6D, the optical imaging lens according to embodiment 3 can achieve good imaging quality.
Example 4
An optical imaging lens according to embodiment 4 of the present application is described below with reference to fig. 7 to 8D. Fig. 7 shows a schematic structural diagram of an optical imaging lens according to embodiment 4 of the present application.
As shown in fig. 7, the optical imaging lens, in order from an object side to an image side along an optical axis, comprises: a stop STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, a filter E8, and an image forming surface S17.
The first lens element E1 has positive power, and has a convex object-side surface S1 and a concave image-side surface S2. The second lens element E2 has negative power, and has a convex object-side surface S3 and a concave image-side surface S4. The third lens element E3 has negative power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has positive power, and has a convex object-side surface S7 and a concave image-side surface S8. The fifth lens element E5 has negative power, and has a convex object-side surface S9 and a concave image-side surface S10. The sixth lens element E6 has positive power, and has a convex object-side surface S11 and a convex image-side surface S12. The seventh lens element E7 has negative power, and has a concave object-side surface S13 and a concave image-side surface S14. Filter E8 has an object side S15 and an image side S16. The light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging surface S17.
In the present embodiment, the total effective focal length f of the optical imaging lens is 6.65mm, the distance TT L on the optical axis from the object-side surface S1 of the first lens E1 to the imaging surface S17 is 7.48mm, the half ImgH of the diagonal length of the effective pixel area on the imaging surface S17 is 6.38mm, and the maximum half field angle Semi-FOV of the optical imaging lens is 43.4 °.
Table 7 shows a basic parameter table of the optical imaging lens of embodiment 4, in which the units of the radius of curvature, the thickness, and the focal length are all millimeters (mm).
Figure BDA0002166083620000111
TABLE 7
In embodiment 4, both the object-side surface and the image-side surface of any one of the first lens E1 through the seventh lens E7 are aspheric. Table 8 below shows the high-order coefficient A of each of the aspherical mirror surfaces S1-S14 used in example 44、A6、A8、A10、A12、A14、A16、A18And A20。
Flour mark A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 2.1700E-04 3.6630E-03 -5.5000E-03 5.7180E-03 -3.7488E-03 1.5320E-03 -3.8000E-04 5.1600E-05 -3.1531E-06
S2 -1.1670E-02 5.2930E-03 8.1540E-03 -1.6640E-02 1.5401E-02 -8.7000E-03 3.0000E-03 -5.7000E-04 4.6068E-05
S3 -1.6340E-02 1.8639E-02 -6.1400E-03 6.8600E-04 -8.5322E-04 1.5260E-03 -8.6000E-04 2.2400E-04 -2.2691E-05
S4 -1.8800E-03 1.2876E-02 -5.1000E-04 -1.1010E-02 1.6850E-02 -1.3900E-02 7.0590E-03 -2.0000E-03 2.4541E-04
S5 -2.0680E-02 6.4270E-03 -1.7900E-03 -1.6690E-02 3.4031E-02 -3.3040E-02 1.7728E-02 -5.0000E-03 5.7795E-04
S6 -2.6960E-02 1.6263E-02 -1.3170E-02 2.1390E-03 1.0387E-02 -1.2570E-02 6.9230E-03 -1.8800E-03 2.0141E-04
S7 -3.4690E-02 6.0700E-03 1.0120E-02 -3.1720E-02 3.8220E-02 -2.5380E-02 9.7160E-03 -1.9800E-03 1.6494E-04
S8 -3.0660E-02 1.1282E-02 -1.7740E-02 1.9210E-02 -1.4952E-02 7.6700E-03 -2.4300E-03 4.2800E-04 -3.1736E-05
S9 -3.7630E-02 2.3740E-03 4.8910E-03 -4.4700E-03 1.2266E-03 4.0800E-05 -9.6000E-05 1.9900E-05 -1.3309E-06
S10 -4.8120E-02 3.6340E-03 4.8910E-03 -3.4400E-03 1.0410E-03 -1.6000E-04 1.1800E-05 -3.3000E-07 -1.7683E-09
S11 -1.3580E-02 -1.1790E-02 5.5400E-03 -1.7000E-03 3.1843E-04 -3.5000E-05 2.1700E-06 -7.3000E-08 1.0091E-09
S12 1.9937E-02 -1.7030E-02 5.1130E-03 -1.0600E-03 1.5601E-04 -1.5000E-05 8.6700E-07 -2.8000E-08 3.7167E-10
S13 -1.8390E-02 -1.0000E-03 1.6910E-03 -3.2000E-04 3.0785E-05 -1.7000E-06 5.8300E-08 -1.1000E-09 8.8962E-12
S14 -2.6640E-02 3.8980E-03 -1.2000E-04 -4.1000E-05 6.3909E-06 -4.5000E-07 1.7800E-08 -3.7000E-10 3.2448E-12
TABLE 8
Fig. 8A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 4, which represents the deviation of the convergent focal points of light rays of different wavelengths after passing through the lens. Fig. 8B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging lens of embodiment 4. Fig. 8C shows a distortion curve of the optical imaging lens of embodiment 4, which represents distortion magnitude values corresponding to different image heights. Fig. 8D shows a chromatic aberration of magnification curve of the optical imaging lens of embodiment 4, which represents the deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 8A to 8D, the optical imaging lens according to embodiment 4 can achieve good imaging quality.
Example 5
An optical imaging lens according to embodiment 5 of the present application is described below with reference to fig. 9 to 10D. Fig. 9 shows a schematic structural diagram of an optical imaging lens according to embodiment 5 of the present application.
As shown in fig. 9, the optical imaging lens, in order from an object side to an image side along an optical axis, comprises: a stop STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, a filter E8, and an image forming surface S17.
The first lens element E1 has positive power, and has a convex object-side surface S1 and a concave image-side surface S2. The second lens element E2 has negative power, and has a convex object-side surface S3 and a concave image-side surface S4. The third lens element E3 has positive power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has positive power, and has a convex object-side surface S7 and a convex image-side surface S8. The fifth lens element E5 has negative power, and has a convex object-side surface S9 and a concave image-side surface S10. The sixth lens element E6 has positive power, and has a convex object-side surface S11 and a convex image-side surface S12. The seventh lens element E7 has negative power, and has a concave object-side surface S13 and a concave image-side surface S14. Filter E8 has an object side S15 and an image side S16. The light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging surface S17.
In the present embodiment, the total effective focal length f of the optical imaging lens is 6.62mm, the distance TT L on the optical axis from the object-side surface S1 of the first lens E1 to the imaging surface S17 is 7.61mm, the half ImgH of the diagonal length of the effective pixel area on the imaging surface S17 is 6.25mm, and the maximum half field angle Semi-FOV of the optical imaging lens is 42.8 °.
Table 9 shows a basic parameter table of the optical imaging lens of embodiment 5, in which the units of the radius of curvature, the thickness, and the focal length are all millimeters (mm).
Figure BDA0002166083620000121
Figure BDA0002166083620000131
TABLE 9
In embodiment 5, both the object-side surface and the image-side surface of any one of the first lens E1 through the seventh lens E7 are aspheric. Table 10 below shows the high-order coefficient A of each of the aspherical mirror surfaces S1-S14 used in example 54、A6、A8、A10、A12、A14、A16、A18And A20。
Flour mark A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -1.2400E-03 7.3050E-03 -1.3670E-02 1.6459E-02 -1.2810E-02 6.4080E-03 -1.9900E-03 3.5100E-04 -2.7000E-05
S2 -3.0600E-03 -1.7000E-04 2.3119E-02 -4.9250E-02 5.2100E-02 -3.2200E-02 1.1754E-02 -2.3500E-03 1.9800E-04
S3 -1.2930E-02 9.4700E-04 3.0118E-02 -6.6130E-02 7.3832E-02 -4.8470E-02 1.8875E-02 -4.0300E-03 3.6400E-04
S4 -8.4200E-03 -1.7400E-03 3.3134E-02 -8.7210E-02 1.3230E-01 -1.2132E-01 6.6837E-02 -2.0310E-02 2.6310E-03
S5 -1.5330E-02 5.7230E-03 -3.1590E-02 7.1237E-02 -9.2540E-02 7.1662E-02 -3.2300E-02 7.7710E-03 -7.7000E-04
S6 -1.1270E-02 -1.1080E-02 3.8446E-02 -8.3730E-02 1.1228E-01 -9.1440E-02 4.4544E-02 -1.1810E-02 1.3010E-03
S7 -1.8910E-02 -2.3320E-02 5.9638E-02 -1.0934E-01 1.2169E-01 -8.3010E-02 3.3995E-02 -7.5600E-03 6.9400E-04
S8 -2.3030E-02 -1.4800E-03 4.7330E-03 -1.0280E-02 8.5400E-03 -3.7600E-03 9.1000E-04 -1.0000E-04 2.9300E-06
S9 -5.1040E-02 1.9679E-02 -1.0460E-02 3.5980E-03 -1.0100E-03 1.9400E-04 -1.3000E-05 -1.1000E-06 1.3400E-07
S10 -6.0070E-02 2.2206E-02 -7.8300E-03 1.9910E-03 -3.9000E-04 6.6300E-05 -8.3000E-06 5.9700E-07 -1.8000E-08
S11 -2.6150E-02 -5.9000E-04 1.7110E-03 -8.0000E-04 1.9900E-04 -3.0000E-05 2.6800E-06 -1.3000E-07 2.8400E-09
S12 -9.1000E-04 -5.9400E-03 1.7180E-03 -2.7000E-04 2.6000E-05 -1.2000E-06 -1.3000E-08 3.5100E-09 -9.5000E-11
S13 -2.3440E-02 2.5710E-03 6.2900E-04 -1.5000E-04 1.5000E-05 -8.2000E-07 2.6400E-08 -4.7000E-10 3.5800E-12
S14 -2.2130E-02 3.6690E-03 -3.0000E-04 5.4900E-06 1.0800E-06 -1.1000E-07 4.5500E-09 -9.6000E-11 8.1100E-13
Watch 10
Fig. 10A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 5, which represents the deviation of the convergent focal points of light rays of different wavelengths after passing through the lens. Fig. 10B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging lens of embodiment 5. Fig. 10C shows a distortion curve of the optical imaging lens of embodiment 5, which represents distortion magnitude values corresponding to different image heights. Fig. 10D shows a chromatic aberration of magnification curve of the optical imaging lens of embodiment 5, which represents a deviation of different image heights on the imaging surface after light passes through the lens. As can be seen from fig. 10A to 10D, the optical imaging lens according to embodiment 5 can achieve good imaging quality.
Example 6
An optical imaging lens according to embodiment 6 of the present application is described below with reference to fig. 11 to 12D. Fig. 11 shows a schematic structural view of an optical imaging lens according to embodiment 6 of the present application.
As shown in fig. 11, the optical imaging lens, in order from an object side to an image side along an optical axis, comprises: a stop STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, a filter E8, and an image forming surface S17.
The first lens element E1 has positive power, and has a convex object-side surface S1 and a concave image-side surface S2. The second lens element E2 has negative power, and has a convex object-side surface S3 and a concave image-side surface S4. The third lens element E3 has negative power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has negative power, and has a convex object-side surface S7 and a concave image-side surface S8. The fifth lens element E5 has negative power, and has a convex object-side surface S9 and a concave image-side surface S10. The sixth lens element E6 has positive power, and has a convex object-side surface S11 and a convex image-side surface S12. The seventh lens element E7 has negative power, and has a concave object-side surface S13 and a concave image-side surface S14. Filter E8 has an object side S15 and an image side S16. The light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging surface S17.
In the present embodiment, the total effective focal length f of the optical imaging lens is 6.85mm, the distance TT L on the optical axis from the object-side surface S1 of the first lens E1 to the imaging surface S17 is 7.80mm, the half ImgH of the diagonal length of the effective pixel area on the imaging surface S17 is 6.45mm, and the maximum half field angle Semi-FOV of the optical imaging lens is 42.7 °.
Table 11 shows a basic parameter table of the optical imaging lens of embodiment 6, in which the units of the radius of curvature, the thickness, and the focal length are all millimeters (mm).
Figure BDA0002166083620000141
TABLE 11
In embodiment 6, both the object-side surface and the image-side surface of any one of the first lens E1 through the seventh lens E7 are aspheric. Table 12 below shows the results that can be used in the practiceThe high-order coefficient A of each aspherical mirror surface S1-S14 in example 64、A6、A8、A10、A12、A14、A16、A18And A20。
Figure BDA0002166083620000142
Figure BDA0002166083620000151
TABLE 12
Fig. 12A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 6, which represents the deviation of the convergent focal points of light rays of different wavelengths after passing through the lens. Fig. 12B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging lens of embodiment 6. Fig. 12C shows a distortion curve of the optical imaging lens of embodiment 6, which represents distortion magnitude values corresponding to different image heights. Fig. 12D shows a chromatic aberration of magnification curve of the optical imaging lens of embodiment 6, which represents a deviation of different image heights on the imaging surface after light passes through the lens. As can be seen from fig. 12A to 12D, the optical imaging lens according to embodiment 6 can achieve good imaging quality.
Example 7
An optical imaging lens according to embodiment 7 of the present application is described below with reference to fig. 13 to 14D. Fig. 13 is a schematic structural view showing an optical imaging lens according to embodiment 7 of the present application.
As shown in fig. 13, the optical imaging lens, in order from an object side to an image side along an optical axis, comprises: a stop STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, a filter E8, and an image forming surface S17.
The first lens element E1 has positive power, and has a convex object-side surface S1 and a concave image-side surface S2. The second lens element E2 has negative power, and has a convex object-side surface S3 and a concave image-side surface S4. The third lens element E3 has positive power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has negative power, and has a concave object-side surface S7 and a convex image-side surface S8. The fifth lens element E5 has positive power, and has a convex object-side surface S9 and a concave image-side surface S10. The sixth lens element E6 has positive power, and has a convex object-side surface S11 and a convex image-side surface S12. The seventh lens element E7 has negative power, and has a concave object-side surface S13 and a concave image-side surface S14. Filter E8 has an object side S15 and an image side S16. The light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging surface S17.
In the present embodiment, the total effective focal length f of the optical imaging lens is 6.75mm, the distance TT L on the optical axis from the object-side surface S1 of the first lens E1 to the imaging surface S17 is 7.90mm, the half ImgH of the diagonal length of the effective pixel area on the imaging surface S17 is 6.48mm, and the maximum half field angle Semi-FOV of the optical imaging lens is 43.2 °.
Table 13 shows a basic parameter table of the optical imaging lens of embodiment 7, in which the units of the radius of curvature, the thickness, and the focal length are all millimeters (mm).
Figure BDA0002166083620000152
Figure BDA0002166083620000161
Watch 13
In embodiment 7, both the object-side surface and the image-side surface of any one of the first lens E1 through the seventh lens E7 are aspheric. Table 14 below shows the high-order coefficient A of each of the aspherical mirror surfaces S1-S14 used in example 74、A6、A8、A10、A12、A14、A16、A18And A20。
Flour mark A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 4.3800E-04 2.4190E-03 -4.8500E-03 6.2580E-03 -4.9400E-03 2.4250E-03 -7.2000E-04 1.2100E-04 -8.7000E-06
S2 -5.0300E-03 1.4999E-02 -1.6340E-02 9.3050E-03 -1.8400E-03 -8.6000E-04 6.3600E-04 -1.5000E-04 1.3100E-05
S3 -1.9170E-02 1.9753E-02 -2.0580E-02 1.4465E-02 -6.2000E-03 1.5850E-03 -2.0000E-04 2.9100E-06 1.0700E-06
S4 -1.7150E-02 1.5291E-02 -2.1200E-02 2.1613E-02 -1.3840E-02 5.6190E-03 -1.3800E-03 1.8300E-04 -1.0000E-05
S5 8.0380E-03 2.4730E-03 8.9500E-04 -2.6800E-03 3.3860E-03 -2.3000E-03 9.4400E-04 -2.2000E-04 2.1800E-05
S6 1.4600E-05 1.3310E-03 2.8870E-03 -1.0830E-02 1.6996E-02 -1.4390E-02 6.9570E-03 -1.8000E-03 1.9600E-04
S7 -2.8330E-02 1.4076E-02 -3.8310E-02 5.6792E-02 -5.6750E-02 3.6327E-02 -1.4360E-02 3.1830E-03 -3.0000E-04
S8 -3.3120E-02 1.7313E-02 -2.3000E-02 2.1127E-02 -1.3930E-02 6.1120E-03 -1.6800E-03 2.6100E-04 -1.7000E-05
S9 -4.2640E-02 1.3966E-02 -5.0200E-03 1.4560E-03 -5.5000E-04 1.8400E-04 -4.1000E-05 5.1500E-06 -2.6000E-07
S10 -3.6130E-02 9.3520E-03 -1.3400E-03 -2.3000E-04 1.4800E-04 -3.4000E-05 4.2700E-06 -2.9000E-07 8.2500E-09
S11 -1.0600E-03 -2.5100E-03 8.3900E-04 -2.0000E-04 2.6800E-05 -2.0000E-06 7.9200E-08 -1.5000E-09 1.0100E-11
S12 1.2618E-02 -5.6100E-03 1.5890E-03 -3.1000E-04 3.6900E-05 -2.7000E-06 1.1900E-07 -2.9000E-09 2.9500E-11
S13 -1.8980E-02 4.3080E-03 -3.1000E-04 3.8700E-06 8.9900E-07 -6.9000E-08 2.3300E-09 -4.0000E-11 2.7500E-13
S14 -1.5360E-02 3.0670E-03 -4.3000E-04 4.0100E-05 -2.5000E-06 1.0500E-07 -2.7000E-09 3.9100E-11 -2.4000E-13
TABLE 14
Fig. 14A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 7, which represents the deviation of the convergent focal points of light rays of different wavelengths after passing through the lens. Fig. 14B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging lens of embodiment 7. Fig. 14C shows a distortion curve of the optical imaging lens of embodiment 7, which represents distortion magnitude values corresponding to different image heights. Fig. 14D shows a chromatic aberration of magnification curve of the optical imaging lens of embodiment 7, which represents a deviation of different image heights on the imaging surface after light passes through the lens. As can be seen from fig. 14A to 14D, the optical imaging lens according to embodiment 7 can achieve good imaging quality.
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, in order from an object side to an image side along an optical axis, comprises: a stop STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, a filter E8, and an image forming surface S17.
The first lens element E1 has positive power, and has a convex object-side surface S1 and a concave image-side surface S2. The second lens element E2 has negative power, and has a convex object-side surface S3 and a concave image-side surface S4. The third lens element E3 has positive power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has negative power, and has a concave object-side surface S7 and a convex image-side surface S8. The fifth lens element E5 has positive power, and has a convex object-side surface S9 and a concave image-side surface S10. The sixth lens element E6 has positive power, and has a convex object-side surface S11 and a convex image-side surface S12. The seventh lens element E7 has negative power, and has a concave object-side surface S13 and a convex image-side surface S14. Filter E8 has an object side S15 and an image side S16. The light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging surface S17.
In the present embodiment, the total effective focal length f of the optical imaging lens is 6.83mm, the distance TT L on the optical axis from the object-side surface S1 of the first lens E1 to the imaging surface S17 is 7.90mm, the half ImgH of the diagonal length of the effective pixel area on the imaging surface S17 is 6.38mm, and the maximum half field angle Semi-FOV of the optical imaging lens is 42.5 °.
Table 15 shows a basic parameter table of the optical imaging lens of embodiment 8, in which the units of the radius of curvature, the thickness, and the focal length are all millimeters (mm).
Figure BDA0002166083620000171
Watch 15
In embodiment 8, both the object-side surface and the image-side surface of any one of the first lens E1 through the seventh lens E7 are aspheric. Table 16 below shows the high-order coefficient A of each of the aspherical mirror surfaces S1-S14 used in example 84、A6、A8、A10、A12、A14、A16、A18And A20。
Figure BDA0002166083620000172
Figure BDA0002166083620000181
TABLE 16
Fig. 16A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 8, which represents the deviation of the convergent focal points of light rays of different wavelengths after passing through the lens. Fig. 16B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging lens of embodiment 8. Fig. 16C shows a distortion curve of the optical imaging lens of embodiment 8, which represents distortion magnitude values corresponding to different image heights. Fig. 16D shows a chromatic aberration of magnification curve of the optical imaging lens of embodiment 8, which represents a deviation of different image heights on the imaging surface after light passes through the lens. As can be seen from fig. 16A to 16D, the optical imaging lens according to embodiment 8 can achieve good imaging quality.
Example 9
An optical imaging lens according to embodiment 9 of the present application is described below with reference to fig. 17 to 18D. Fig. 17 is a schematic structural view showing an optical imaging lens according to embodiment 9 of the present application.
As shown in fig. 17, the optical imaging lens, in order from an object side to an image side along an optical axis, comprises: a stop STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, a filter E8, and an image forming surface S17.
The first lens element E1 has positive power, and has a convex object-side surface S1 and a concave image-side surface S2. The second lens element E2 has negative power, and has a convex object-side surface S3 and a concave image-side surface S4. The third lens element E3 has positive power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has negative power, and has a concave object-side surface S7 and a concave image-side surface S8. The fifth lens element E5 has positive power, and has a convex object-side surface S9 and a concave image-side surface S10. The sixth lens element E6 has positive power, and has a convex object-side surface S11 and a convex image-side surface S12. The seventh lens element E7 has negative power, and has a concave object-side surface S13 and a concave image-side surface S14. Filter E8 has an object side S15 and an image side S16. The light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging surface S17.
In the present embodiment, the total effective focal length f of the optical imaging lens is 6.78mm, the distance TT L on the optical axis from the object-side surface S1 of the first lens E1 to the imaging surface S17 is 7.90mm, the half ImgH of the diagonal length of the effective pixel area on the imaging surface S17 is 6.42mm, and the maximum half field angle Semi-FOV of the optical imaging lens is 42.9 °.
Table 17 shows a basic parameter table of the optical imaging lens of example 9, in which the units of the radius of curvature, the thickness, and the focal length are all millimeters (mm).
Figure BDA0002166083620000182
Figure BDA0002166083620000191
TABLE 17
In embodiment 9, both the object-side surface and the image-side surface of any one of the first lens E1 through the seventh lens E7 are aspheric. Table 18 below shows the coefficients A of the high-order terms which can be used for the aspherical mirror surfaces S1-S14 in example 94、A6、A8、A10、A12、A14、A16、A18And A20。
Flour mark A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 6.4900E-04 2.2220E-03 -4.6100E-03 6.1720E-03 -4.9900E-03 2.4860E-03 -7.5000E-04 1.2600E-04 -9.1000E-06
S2 -5.9300E-03 1.7211E-02 -1.9610E-02 1.2657E-02 -4.2600E-03 2.5200E-04 3.3700E-04 -1.1000E-04 1.0600E-05
S3 -2.5010E-02 1.9994E-02 -2.3200E-02 1.7497E-02 -8.7600E-03 2.8870E-03 -5.8000E-04 6.2100E-05 -2.7000E-06
S4 -1.5920E-02 1.4373E-02 -1.9650E-02 1.9139E-02 -1.1720E-02 4.5610E-03 -1.0700E-03 1.3600E-04 -7.1000E-06
S5 8.2530E-03 9.6800E-04 4.9970E-03 -8.8500E-03 9.2600E-03 -5.8700E-03 2.2760E-03 -4.9000E-04 4.6000E-05
S6 -2.3000E-04 2.9790E-03 -6.7000E-04 -5.6000E-03 1.2064E-02 -1.1270E-02 5.6640E-03 -1.4900E-03 1.6200E-04
S7 -2.9860E-02 1.9746E-02 -4.7490E-02 6.6908E-02 -6.3530E-02 3.8834E-02 -1.4700E-02 3.1250E-03 -2.9000E-04
S8 -3.6230E-02 2.3247E-02 -2.8910E-02 2.5007E-02 -1.5430E-02 6.3490E-03 -1.6400E-03 2.4100E-04 -1.5000E-05
S9 -4.8790E-02 1.8791E-02 -8.1400E-03 3.1560E-03 -1.2400E-03 3.7600E-04 -7.6000E-05 8.8200E-06 -4.3000E-07
S10 -4.0490E-02 1.2189E-02 -2.9600E-03 4.8100E-04 -5.7000E-05 3.2800E-06 2.6700E-07 -5.4000E-08 2.3100E-09
S11 -2.4000E-04 -3.0200E-03 9.7200E-04 -2.3000E-04 3.3100E-05 -2.7000E-06 1.2400E-07 -3.0000E-09 3.0800E-11
S12 1.3107E-02 -5.6000E-03 1.5160E-03 -2.9000E-04 3.6100E-05 -2.7000E-06 1.2500E-07 -3.1000E-09 3.3000E-11
S13 -1.9570E-02 4.2550E-03 -3.0000E-04 1.7900E-06 1.0800E-06 -8.1000E-08 2.7900E-09 -4.9000E-11 3.5800E-13
S14 -1.6920E-02 3.5120E-03 -5.2000E-04 5.3800E-05 -3.8000E-06 1.7300E-07 -5.0000E-09 8.0500E-11 -5.6000E-13
Watch 18
Fig. 18A shows an on-axis chromatic aberration curve of an optical imaging lens of embodiment 9, which represents the deviation of the convergent focal points of light rays of different wavelengths after passing through the lens. Fig. 18B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging lens of embodiment 9. Fig. 18C shows a distortion curve of the optical imaging lens of embodiment 9, which represents distortion magnitude values corresponding to different image heights. Fig. 18D shows a chromatic aberration of magnification curve of the optical imaging lens of embodiment 9, which represents a deviation of different image heights on the imaging surface after light passes through the lens. As can be seen from fig. 18A to 18D, the optical imaging lens according to embodiment 9 can achieve good imaging quality.
Example 10
An optical imaging lens according to embodiment 10 of the present application is described below with reference to fig. 19 to 20D. Fig. 19 shows a schematic structural diagram of an optical imaging lens according to embodiment 10 of the present application.
As shown in fig. 19, the optical imaging lens, in order from an object side to an image side along an optical axis, comprises: a stop STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, a filter E8, and an image forming surface S17.
The first lens element E1 has positive power, and has a convex object-side surface S1 and a concave image-side surface S2. The second lens element E2 has negative power, and has a convex object-side surface S3 and a concave image-side surface S4. The third lens element E3 has positive power, and has a convex object-side surface S5 and a convex image-side surface S6. The fourth lens element E4 has negative power, and has a concave object-side surface S7 and a convex image-side surface S8. The fifth lens element E5 has positive power, and has a convex object-side surface S9 and a concave image-side surface S10. The sixth lens element E6 has positive power, and has a convex object-side surface S11 and a convex image-side surface S12. The seventh lens element E7 has negative power, and has a concave object-side surface S13 and a concave image-side surface S14. Filter E8 has an object side S15 and an image side S16. The light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging surface S17.
In the present embodiment, the total effective focal length f of the optical imaging lens is 6.62mm, the distance TT L on the optical axis from the object-side surface S1 of the first lens E1 to the imaging surface S17 is 7.85mm, the half ImgH of the diagonal length of the effective pixel area on the imaging surface S17 is 6.30mm, and the maximum half field angle Semi-FOV of the optical imaging lens is 43.0 °.
Table 19 shows a basic parameter table of the optical imaging lens of example 10, in which the units of the radius of curvature, the thickness, and the focal length are all millimeters (mm).
Figure BDA0002166083620000201
Watch 19
In embodiment 10, both the object-side surface and the image-side surface of any one of the first lens E1 through the seventh lens E7 are aspheric. Table 20 below shows the high-order coefficient A of each of the aspherical mirror surfaces S1-S14 used in example 104、A6、A8、A10、A12、A14、A16、A18And A20。
Figure BDA0002166083620000202
Figure BDA0002166083620000211
Watch 20
Fig. 20A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 10, which represents the deviation of the convergent focal points of light rays of different wavelengths after passing through the lens. Fig. 20B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging lens of embodiment 10. Fig. 20C shows a distortion curve of the optical imaging lens of embodiment 10, which represents distortion magnitude values corresponding to different image heights. Fig. 20D shows a chromatic aberration of magnification curve of the optical imaging lens of embodiment 10, which represents a deviation of different image heights on the imaging surface after light passes through the lens. As can be seen from fig. 20A to 20D, the optical imaging lens according to embodiment 10 can achieve good imaging quality.
In summary, examples 1 to 10 each satisfy the relationship shown in table 21.
Figure BDA0002166083620000212
TABLE 21
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims (24)

1. An optical imaging lens, in order from an object side to an image side along an optical axis, comprising:
a first lens having a positive optical power;
a second lens having a negative optical power;
a third lens having optical power;
a fourth lens having an optical power;
a fifth lens having a refractive power, an object-side surface of which is convex;
the sixth lens with positive focal power has a convex object-side surface and a convex image-side surface; and
a seventh lens having a negative optical power;
wherein a distance TT L from the object side surface of the first lens to the imaging surface of the optical imaging lens on the optical axis and a half ImgH of a diagonal length of an effective pixel area on the imaging surface of the optical imaging lens satisfy:
ImgH/(TTL/ImgH)＞5.0mm。
2. the optical imaging lens according to claim 1, wherein the total effective focal length f of the optical imaging lens and the maximum half field angle Semi-FOV of the optical imaging lens satisfy:
6.0mm＜f×tan(Semi-FOV)＜7.0mm。
3. the optical imaging lens of claim 1, wherein the effective focal length f1 of the first lens, the radius of curvature R1 of the object side surface of the first lens, and the radius of curvature R2 of the image side surface of the first lens satisfy:
0.3＜f1/(R1+R2)＜1.1。
4. the optical imaging lens of claim 1, wherein the total effective focal length f of the optical imaging lens, the effective focal length f6 of the sixth lens and the effective focal length f7 of the seventh lens satisfy:
0.2＜(f6+f7)/f＜0.7。
5. the optical imaging lens of claim 1, wherein the radius of curvature R11 of the object-side surface of the sixth lens and the radius of curvature R10 of the image-side surface of the fifth lens satisfy:
0.3＜R11/R10＜1.0。
6. the optical imaging lens of claim 1, wherein a separation distance T56 on the optical axis of the fifth lens and the sixth lens, a center thickness CT6 on the optical axis of the sixth lens, a separation distance T67 on the optical axis of the sixth lens and the seventh lens, a center thickness CT7 on the optical axis of the seventh lens, and a distance TT L on the optical axis from an object side surface of the first lens to an imaging surface of the optical imaging lens satisfy:
1.7＜(T56+CT6+T67+CT7)/TTL×5＜2.2。
7. the optical imaging lens according to claim 1, wherein the maximum half field angle Semi-FOV of the optical imaging lens satisfies:
40°＜Semi-FOV＜45°。
8. the optical imaging lens of claim 1, wherein the total effective focal length f of the optical imaging lens, the radius of curvature R3 of the object-side surface of the second lens, and the radius of curvature R4 of the image-side surface of the second lens satisfy:
0.3＜f/(R3+R4)＜1.0。
9. the optical imaging lens of claim 1, wherein a combined focal length f123 of the first lens, the second lens and the third lens and a total effective focal length f of the optical imaging lens satisfy:
0.8＜f123/f＜1.3。
10. the optical imaging lens according to claim 1, wherein an on-axis distance SAG72 from an intersection point of an image-side surface of the seventh lens and the optical axis to an effective radius vertex of the image-side surface of the seventh lens and an on-axis distance SAG62 from an intersection point of an image-side surface of the sixth lens and the optical axis to an effective radius vertex of the image-side surface of the sixth lens satisfy:
0.8＜SAG72/SAG62＜1.5。
11. the optical imaging lens of claim 1, wherein an on-axis distance SAG51 from an intersection point of an object-side surface of the fifth lens and the optical axis to an effective radius vertex of an object-side surface of the fifth lens, an on-axis distance SAG52 from an intersection point of an image-side surface of the fifth lens and the optical axis to an effective radius vertex of an image-side surface of the fifth lens, and a center thickness CT5 of the fifth lens on the optical axis satisfy:
1.6＜|SAG51+SAG52|/CT5＜2.6。
12. the optical imaging lens according to any one of claims 1 to 11, wherein a maximum effective radius DT11 of an object-side surface of the first lens, a maximum effective radius DT21 of an object-side surface of the second lens, a maximum effective radius DT31 of an object-side surface of the third lens, a maximum effective radius DT41 of an object-side surface of the fourth lens, a maximum effective radius DT51 of an object-side surface of the fifth lens, a maximum effective radius DT61 of an object-side surface of the sixth lens, and a maximum effective radius DT71 of an object-side surface of the seventh lens satisfy:
2.3＜(DT41+DT51+DT61+DT71)/(DT11+DT21+DT31)＜2.8。
13. an optical imaging lens, in order from an object side to an image side along an optical axis, comprising:
a first lens having a positive optical power;
a second lens having a negative optical power;
a third lens having optical power;
a fourth lens having an optical power;
a fifth lens having a refractive power, an object-side surface of which is convex;
the sixth lens with positive focal power has a convex object-side surface and a convex image-side surface; and
a seventh lens having a negative optical power;
wherein the total effective focal length f of the optical imaging lens and the maximum half field angle Semi-FOV of the optical imaging lens satisfy:
6.0mm＜f×tan(Semi-FOV)＜7.0mm。
14. the optical imaging lens of claim 13, wherein the effective focal length f1 of the first lens, the radius of curvature R1 of the object side surface of the first lens, and the radius of curvature R2 of the image side surface of the first lens satisfy:
0.3＜f1/(R1+R2)＜1.1。
15. the optical imaging lens of claim 14, wherein a distance TT L between an object side surface of the first lens and an imaging surface of the optical imaging lens on the optical axis satisfies ImgH/(TT L/ImgH) >5.0mm with a half ImgH of a diagonal length of an effective pixel region on the imaging surface of the optical imaging lens.
16. The optical imaging lens of claim 13, wherein the total effective focal length f of the optical imaging lens, the effective focal length f6 of the sixth lens and the effective focal length f7 of the seventh lens satisfy:
0.2＜(f6+f7)/f＜0.7。
17. the optical imaging lens of claim 13, wherein the radius of curvature R11 of the object-side surface of the sixth lens and the radius of curvature R10 of the image-side surface of the fifth lens satisfy:
0.3＜R11/R10＜1.0。
18. the optical imaging lens according to claim 13, wherein a separation distance T56 of the fifth lens and the sixth lens on the optical axis, a center thickness CT6 of the sixth lens on the optical axis, a separation distance T67 of the sixth lens and the seventh lens on the optical axis, and a center thickness CT7 of the seventh lens on the optical axis satisfy:
1.7＜(T56+CT6+T67+CT7)/TTL×5＜2.2。
19. the optical imaging lens according to claim 13, wherein the maximum half field angle Semi-FOV of the optical imaging lens satisfies:
40°＜Semi-FOV＜45°。
20. the optical imaging lens of claim 13, wherein the total effective focal length f of the optical imaging lens, the radius of curvature R3 of the object-side surface of the second lens, and the radius of curvature R4 of the image-side surface of the second lens satisfy:
0.3＜f/(R3+R4)＜1.0。
21. the optical imaging lens of claim 13, wherein a combined focal length f123 of the first lens, the second lens, and the third lens and a total effective focal length f of the optical imaging lens satisfy:
0.8＜f123/f＜1.3。
22. the optical imaging lens of claim 13, wherein an on-axis distance SAG72 from an intersection point of an image-side surface of the seventh lens and the optical axis to an effective radius vertex of the image-side surface of the seventh lens and an on-axis distance SAG62 from an intersection point of an image-side surface of the sixth lens and the optical axis to an effective radius vertex of the image-side surface of the sixth lens satisfy:
0.8＜SAG72/SAG62＜1.5。
23. the optical imaging lens of claim 13, wherein an on-axis distance SAG51 from an intersection point of an object-side surface of the fifth lens and the optical axis to an effective radius vertex of the object-side surface of the fifth lens, an on-axis distance SAG52 from an intersection point of an image-side surface of the fifth lens and the optical axis to an effective radius vertex of an image-side surface of the fifth lens, and a center thickness CT5 of the fifth lens on the optical axis satisfy:
1.6＜|SAG51+SAG52|/CT5＜2.6。
24. the optical imaging lens according to any one of claims 13 to 23, wherein a maximum effective radius DT11 of an object-side surface of the first lens, a maximum effective radius DT21 of an object-side surface of the second lens, a maximum effective radius DT31 of an object-side surface of the third lens, a maximum effective radius DT41 of an object-side surface of the fourth lens, a maximum effective radius DT51 of an object-side surface of the fifth lens, a maximum effective radius DT61 of an object-side surface of the sixth lens, and a maximum effective radius DT71 of an object-side surface of the seventh lens satisfy:
2.3＜(DT41+DT51+DT61+DT71)/(DT11+DT21+DT31)＜2.8。
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