CN211086768U - Optical imaging lens - Google Patents
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- CN211086768U CN211086768U CN201921888900.9U CN201921888900U CN211086768U CN 211086768 U CN211086768 U CN 211086768U CN 201921888900 U CN201921888900 U CN 201921888900U CN 211086768 U CN211086768 U CN 211086768U
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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 the positive focal power, a third lens with the positive focal power, a fourth lens with the positive focal power, a fifth lens with the positive focal power, a sixth lens with the positive focal power, a seventh lens with the negative focal power, a 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, a half gH of the diagonal length of an effective pixel area on the imaging surface of the optical imaging lens, and a total effective focal length f of the optical imaging lens from the object side surface to the imaging surface of the optical imaging lens on the optical axis, wherein the total effective focal length f of the optical imaging lens is 5.00mm < L/gH × f <6.00 mm.
Description
Technical Field
The application relates to the field of optical elements, in particular to an optical imaging lens.
Background
With the rapid development of mobile phone shooting technology in recent years, mobile phone built-in lenses with high imaging quality are gaining more and more favor in the market. Meanwhile, with the continuous change of market demands, people continuously put higher requirements on the performance and the arrangement of the built-in optical imaging lens of the mobile phone. On the one hand, with the reduction of the thickness of the mobile phone, the market requires the miniaturization, the lightness and the thinness of the optical imaging lens built in the mobile phone. On the other hand, along with the improvement of the performance and the reduction of the size of a CCD and a CMOS image sensor in a mobile phone, the market requires that a corresponding optical imaging lens has characteristics of a large aperture and a large imaging surface so as to cooperate with the image sensor to improve the shooting quality of the mobile phone.
SUMMERY OF THE UTILITY MODEL
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: the first lens with positive focal power has a convex object-side surface and a concave image-side surface; a second lens having an optical power; a third lens having a refractive power, an image-side surface of which is concave; a fourth lens having a positive optical power; a fifth lens element with a focal power, wherein the object-side surface of the fifth lens element is convex and the image-side surface of the fifth lens element is concave; the sixth lens with positive focal power has a convex object-side surface and a convex image-side surface; and a seventh lens element having a negative refractive power, the object-side surface of which is concave, and the image-side surface of which is concave.
In one embodiment, 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, a half of a diagonal length ImgH of an effective pixel area on the imaging surface of the optical imaging lens, and a total effective focal length f of the optical imaging lens satisfy 5.00mm < TT L/ImgH × f <6.00 mm.
In one embodiment, 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 of a diagonal length ImgH of an effective pixel area on the imaging surface of the optical imaging lens satisfy TT L/ImgH < 1.30.
In one embodiment, one half ImgH of the diagonal length of the effective pixel area on the imaging plane of the optical imaging lens, 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: 17.00mm2<ImgH×f/tan2(Semi-FOV)<21.00mm2。
In one embodiment, the effective focal length f1 of the first lens and the effective focal length f6 of the sixth lens satisfy: 0.50< f1/f6< 1.50.
In one embodiment, a combined focal length f56 of the fifth lens and the sixth lens and a distance BF L on the optical axis from an image side surface of a lens closest to an imaging surface to the imaging surface satisfy 7.00< f56/BF L < 12.00.
In one embodiment, the radius of curvature R2 of the image-side surface of the first lens and the total effective focal length f of the optical imaging lens satisfy: 0.50< R2/f < 2.00.
In one embodiment, a radius of curvature R13 of an object-side surface of the seventh lens and a radius of curvature R14 of an image-side surface of the seventh lens satisfy: 5.00< (R13-R14)/(R13+ R14) < 8.00.
In one embodiment, a separation distance T67 of the sixth lens and the seventh lens on the optical axis and a separation distance T56 of the fifth lens and the sixth lens on the optical axis satisfy: 2.00< T67/T56< 5.00.
In one embodiment, a central thickness CT6 of the sixth lens on the optical axis and a central thickness CT7 of the seventh lens on the optical axis satisfy: 2.00< (CT6+ CT7)/(CT6-CT7) < 4.00.
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 to 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 satisfies: 0.50< SAG51/SAG52< 1.50.
In one embodiment, a maximum effective radius DT72 of an image-side surface of the seventh lens and a maximum effective radius DT11 of an object-side surface of the first lens satisfy: 2.00< DT72/DT11< 3.00.
In one embodiment, ImgH, which is half the diagonal length of the effective pixel area on the imaging plane of the optical imaging lens, satisfies: ImgH >4.10 mm.
In one embodiment, further comprising a stop disposed at an object side of the first lens.
The optical imaging lens provided by the application comprises a plurality of lenses, such as a first lens to a seventh lens. The mutual relation between the distance from the object side surface of the first lens to the imaging surface of the optical imaging lens on the optical axis, the half of the diagonal length of the effective pixel area on the imaging surface of the optical imaging lens and the total effective focal length of the optical imaging lens is reasonably set, and the focal power and the surface type of each lens are optimized and reasonably matched with each other, so that the optical imaging lens has the characteristics of large aperture and large imaging surface while being miniaturized and lightened.
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 the optical imaging lens of embodiment 8.
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. Each adjacent lens may have an air space therebetween.
In an exemplary embodiment, the first lens may have a positive optical power, with a convex object-side surface and a concave image-side surface; the second lens may have a positive or negative optical power; the third lens can have positive focal power or negative focal power, and the image side surface of the third lens is a concave surface; the fourth lens may have a positive optical power; the fifth lens can have positive focal power or negative focal power, the object side surface of the fifth lens is a convex surface, and the image side surface of the fifth lens is a concave 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 element may have a negative power, and the object-side surface thereof is concave and the image-side surface thereof is concave. The focal power and the surface type of each lens in the optical system are reasonably matched, so that the aberration of the optical system can be effectively balanced, and the imaging quality is improved.
In an exemplary embodiment, 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, the half of the diagonal length of the effective pixel area on the imaging surface of the optical imaging lens, and the total effective focal length f of the optical imaging lens satisfy that 5.00mm < TT L/ImgH × f <6.00 mm.
In an exemplary embodiment, the distance TT L from the object side surface of the first lens element to the imaging surface of the optical imaging lens on the optical axis and the half ImgH of the diagonal length of the effective pixel area on the imaging surface of the optical imaging lens satisfy the proportional relationship of TT L/ImgH <1.30, for example, 1.20< TT L/ImgH < 1.30.
In an exemplary embodiment, one-half of the diagonal length ImgH of the effective pixel area on the imaging plane of the optical imaging lens, 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: 17.00mm2<ImgH×f/tan2(Semi-FOV)<21.00mm2. The mutual relation among the three is reasonably set, so that the visual field angle of the optical imaging lens group is increased and the imaging visual field is widened on the basis that the optical imaging lens group has an ultra-large image surface, and the service efficiency of a large-size imaging area is improved.
In an exemplary embodiment, the effective focal length f1 of the first lens and the effective focal length f6 of the sixth lens satisfy: 0.50< f1/f6<1.50, e.g., 0.70< f1/f6< 1.50. The effective focal lengths of the first lens and the sixth lens are reasonably distributed, so that the deflection angle of light can be reduced, and the imaging quality of the camera lens group is improved.
In an exemplary embodiment, the combined focal length f56 of the fifth lens and the sixth lens and the distance BF L from the image side surface of the lens closest to the imaging surface on the optical axis satisfy that 7.00< f56/BF L < 12.00.
In an exemplary embodiment, the radius of curvature R2 of the image-side surface of the first lens and the total effective focal length f of the optical imaging lens satisfy: 0.50< R2/f <2.00, e.g., 0.80< R2/f < 1.70. The proportional relation between the curvature radius of the image side surface of the first lens and the total effective focal length of the optical imaging lens is reasonably set, so that the first lens is favorably molded and demoulded, and the manufacturability is enhanced.
In an exemplary embodiment, a radius of curvature R13 of the object-side surface of the seventh lens and a radius of curvature R14 of the image-side surface of the seventh lens satisfy: 5.00< (R13-R14)/(R13+ R14) < 8.00. The mutual relation between the curvature radius of the object side surface of the seventh lens and the curvature radius of the image side surface of the seventh lens is reasonably set, and the curvature radius of the image side surface and the curvature radius of the object side surface of the seventh lens are controlled within a certain interval, so that the optical power of the seventh lens in the optical imaging lens group is restrained, and the aberration of the system is corrected.
In the exemplary embodiment, a separation distance T67 on the optical axis of the sixth lens and the seventh lens and a separation distance T56 on the optical axis of the fifth lens and the sixth lens satisfy: 2.00< T67/T56< 5.00. The proportional relation between the spacing distance of the sixth lens and the seventh lens on the optical axis and the spacing distance of the fifth lens and the sixth lens on the optical axis is reasonably set, so that the field curvature balance of the optical imaging lens group is favorably realized, and the optical system has reasonable field curvature.
In an exemplary embodiment, a central thickness CT6 of the sixth lens on the optical axis and a central thickness CT7 of the seventh lens on the optical axis satisfy: 2.00< (CT6+ CT7)/(CT6-CT7) < 4.00. The mutual relation between the central thickness of the sixth lens on the optical axis and the central thickness of the seventh lens on the optical axis is reasonably set, so that the relation conditions are met, the field curvature balance of the optical imaging lens group is favorably realized, and the optical system has reasonable field curvature.
In an exemplary embodiment, an on-axis distance SAG51 from an intersection 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 and an on-axis distance SAG52 from an intersection 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 satisfy: 0.50< SAG51/SAG52<1.50, e.g., 0.50< SAG51/SAG52< 1.30. The proportional relation between the axial distance from the intersection point of the object side surface of the fifth lens and the optical axis to the effective radius peak of the object side surface of the fifth lens and the axial distance from the intersection point of the image side surface of the fifth lens and the optical axis to the effective radius peak of the image side surface of the fifth lens is reasonably set, the processing and the molding of the fifth lens are facilitated, and the lens has a good imaging effect.
In an exemplary embodiment, the maximum effective radius DT72 of the image-side surface of the seventh lens and the maximum effective radius DT11 of the object-side surface of the first lens satisfy: 2.00< DT72/DT11<3.00, e.g., 2.00< DT72/DT11< 2.50. The proportional relation of the maximum effective radius of the image side surface of the seventh lens and the maximum effective radius of the object side surface of the first lens is reasonably set, the size of the front end and the size of the rear end of the lens are favorably reduced, the segment difference is reduced, the incidence range of light rays is favorably limited, light rays with poor edge quality are removed, the off-axis aberration is reduced, and the resolving power of the optical imaging lens group is improved.
In an exemplary embodiment, ImgH, which is half the diagonal length of an effective pixel area on an imaging plane of an optical imaging lens, satisfies: ImgH >4.10mm, e.g. 4.10mm < ImgH <4.20 mm. The half of the diagonal length of the effective pixel area on the imaging surface of the optical imaging lens meets the condition, so that the characteristic of large image surface of the lens is favorably realized, the optical imaging lens group has higher resolution, and the imaging definition of the optical system is 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. In particular, the stop may be located at an object side of the first lens. Optionally, the optical imaging lens may further include a filter for correcting color deviation and/or a protective glass for protecting a photosensitive element on the imaging surface.
The optical imaging lens according to the above-described embodiment of the present application may employ a plurality of lenses, for example, the above seven lenses. The optical imaging lens meets the requirements of large aperture, large image plane, high pixel, portability and the like, and can realize high-definition imaging under the shooting environments of close shot and long shot.
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 lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens and the seventh lens has an object-side surface and an image-side surface which 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.
Exemplary embodiments of the present application also provide an electronic apparatus including the above-described imaging device.
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 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.
Table 1 shows a basic parameter table of the optical imaging lens of embodiment 1, in which the units of the radius of curvature, the thickness/distance, and the focal length are all millimeters (mm).
TABLE 1
In the present embodiment, the total effective focal length f of the optical imaging lens is 4.26mm, 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 5.18mm, the half ImgH of the diagonal length of the effective pixel area on the imaging surface S17 is 4.12mm, the maximum half field angle Semi-FOV of the optical imaging lens is 43.7 °, and the f-number Fno of the optical imaging lens is 1.48.
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:
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 | -2.4532E-04 | -2.5544E-02 | 7.1053E-02 | -1.2790E-01 | 1.3985E-01 | -9.5573E-02 | 3.9462E-02 | -9.0138E-03 | 8.6092E-04 |
| S2 | -1.1906E-02 | 1.0689E-02 | -6.0785E-02 | 1.0210E-01 | -1.0672E-01 | 7.7117E-02 | -3.6316E-02 | 9.7395E-03 | -1.1201E-03 |
| S3 | -3.1543E-03 | 5.5669E-03 | 1.3907E-02 | -9.3836E-02 | 1.9348E-01 | -1.9712E-01 | 1.1109E-01 | -3.3260E-02 | 4.1374E-03 |
| S4 | -1.8573E-02 | 9.7819E-02 | -2.5651E-01 | 5.2107E-01 | -7.1129E-01 | 6.2204E-01 | -3.2666E-01 | 8.8219E-02 | -7.9603E-03 |
| S5 | -7.2180E-02 | 2.7386E-03 | 8.2860E-02 | -3.1809E-01 | 5.5136E-01 | -5.6272E-01 | 3.4649E-01 | -1.1914E-01 | 1.8198E-02 |
| S6 | -4.5772E-02 | 5.3755E-02 | -2.2600E-01 | 5.8292E-01 | -9.7740E-01 | 1.0477E+00 | -6.8739E-01 | 2.5333E-01 | -3.9588E-02 |
| S7 | -1.1818E-02 | -2.1199E-01 | 8.0977E-01 | -1.9761E+00 | 2.9793E+00 | -2.8370E+00 | 1.6558E+00 | -5.4169E-01 | 7.6355E-02 |
| S8 | -5.6891E-02 | 4.3007E-02 | -1.5440E-01 | 2.8606E-01 | -3.4310E-01 | 2.5727E-01 | -1.1718E-01 | 2.9667E-02 | -3.2046E-03 |
| S9 | -7.9447E-02 | -1.1363E-02 | 3.1007E-02 | 8.7657E-03 | -4.1700E-02 | 3.1097E-02 | -1.0893E-02 | 1.8967E-03 | -1.3174E-04 |
| S10 | 1.3754E-01 | -3.4240E-01 | 3.6266E-01 | -2.2755E-01 | 8.7428E-02 | -2.0520E-02 | 2.8192E-03 | -2.0234E-04 | 5.5467E-06 |
| S11 | 1.5639E-01 | -2.3153E-01 | 1.5338E-01 | -6.7258E-02 | 2.1323E-02 | -4.9496E-03 | 7.7103E-04 | -6.8530E-05 | 2.5438E-06 |
| S12 | 1.3229E-01 | -6.3217E-02 | -4.3254E-03 | 1.8359E-02 | -8.8958E-03 | 2.1191E-03 | -2.7690E-04 | 1.9010E-05 | -5.3776E-07 |
| S13 | -1.2009E-01 | 9.2363E-02 | -4.7769E-02 | 1.7302E-02 | -3.9597E-03 | 5.5663E-04 | -4.6698E-05 | 2.1500E-06 | -4.1883E-08 |
| S14 | -1.7813E-01 | 1.0294E-01 | -4.4768E-02 | 1.3568E-02 | -2.8119E-03 | 3.8196E-04 | -3.2045E-05 | 1.4933E-06 | -2.9427E-08 |
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 positive 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 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 4.25mm, 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 5.33mm, the half ImgH of the diagonal length of the effective pixel area on the imaging surface S17 is 4.12mm, the maximum half field angle Semi-FOV of the optical imaging lens is 43.4 °, and the f-number Fno of the optical imaging lens is 1.49.
Table 3 shows a basic parameter table of the optical imaging lens of embodiment 2, in which the units of the radius of curvature, the thickness/distance, and the focal length are all millimeters (mm).
TABLE 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 | -4.0520E-03 | -9.1336E-03 | 2.6237E-02 | -5.4901E-02 | 7.0776E-02 | -5.7063E-02 | 2.7448E-02 | -7.2050E-03 | 7.8036E-04 |
| S2 | -8.4141E-02 | -3.2966E-02 | 1.5248E-01 | -2.8155E-01 | 3.7535E-01 | -3.1817E-01 | 1.5735E-01 | -4.1297E-02 | 4.4321E-03 |
| S3 | -9.3591E-02 | -9.6970E-03 | 2.5677E-01 | -5.4908E-01 | 7.1628E-01 | -5.9131E-01 | 2.9312E-01 | -7.8740E-02 | 8.7718E-03 |
| S4 | -3.6037E-02 | 5.0912E-02 | 1.2075E-02 | 1.1161E-01 | -5.1198E-01 | 7.8562E-01 | -6.1339E-01 | 2.4548E-01 | -3.9560E-02 |
| S5 | -5.8850E-02 | 3.9857E-02 | -6.5528E-02 | 7.4782E-02 | -7.4184E-02 | 5.4861E-02 | -3.3972E-02 | 1.8416E-02 | -4.3715E-03 |
| S6 | -5.0053E-02 | 3.0882E-02 | -1.2250E-01 | 3.4609E-01 | -6.3069E-01 | 7.1293E-01 | -4.8462E-01 | 1.8435E-01 | -2.9814E-02 |
| S7 | -3.7223E-02 | -1.3211E-02 | 3.8181E-02 | -1.2088E-01 | 1.3855E-01 | -5.2820E-02 | -3.4214E-02 | 3.5641E-02 | -8.4009E-03 |
| S8 | -4.9812E-02 | 1.0423E-02 | -3.7867E-02 | 6.0520E-02 | -7.1047E-02 | 5.1514E-02 | -2.2578E-02 | 5.4740E-03 | -5.6630E-04 |
| S9 | -4.3672E-02 | -8.2404E-02 | 1.3604E-01 | -1.0060E-01 | 3.6506E-02 | -4.7642E-03 | -8.8852E-04 | 3.5545E-04 | -3.1648E-05 |
| S10 | 1.1078E-01 | -2.9500E-01 | 3.0963E-01 | -1.9040E-01 | 7.2274E-02 | -1.7067E-02 | 2.4258E-03 | -1.8837E-04 | 6.0781E-06 |
| S11 | 1.3295E-01 | -2.0125E-01 | 1.3922E-01 | -6.3134E-02 | 2.0084E-02 | -4.5892E-03 | 7.0609E-04 | -6.3033E-05 | 2.4016E-06 |
| S12 | 1.1358E-01 | -5.3768E-02 | 8.2630E-04 | 1.1210E-02 | -5.6199E-03 | 1.3300E-03 | -1.7067E-04 | 1.1443E-05 | -3.1493E-07 |
| S13 | -8.8973E-02 | 4.5641E-02 | -1.7157E-02 | 6.2066E-03 | -1.5605E-03 | 2.3988E-04 | -2.1664E-05 | 1.0617E-06 | -2.1873E-08 |
| S14 | -1.6231E-01 | 8.8265E-02 | -3.6968E-02 | 1.0665E-02 | -2.0617E-03 | 2.5862E-04 | -2.0052E-05 | 8.6934E-07 | -1.6072E-08 |
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 4.26mm, 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 5.33mm, the half ImgH of the diagonal length of the effective pixel area on the imaging surface S17 is 4.12mm, the maximum half field angle Semi-FOV of the optical imaging lens is 43.3 °, and the f-number Fno of the optical imaging lens is 1.49.
Table 5 shows a basic parameter table of the optical imaging lens of embodiment 3, in which the units of the radius of curvature, the thickness/distance, and the focal length are all millimeters (mm).
TABLE 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 | -7.4461E-03 | 1.2968E-02 | -3.2655E-02 | 3.7772E-02 | -2.2688E-02 | 3.6441E-03 | 2.9944E-03 | -1.6841E-03 | 2.4941E-04 |
| S2 | -1.4289E-02 | -5.3780E-02 | -4.8040E-02 | 2.4182E-01 | -2.9240E-01 | 1.8205E-01 | -6.4877E-02 | 1.2817E-02 | -1.1237E-03 |
| S3 | 1.2517E-02 | -9.3567E-02 | 7.8983E-02 | 2.3148E-02 | -2.2577E-02 | -4.8757E-02 | 5.8787E-02 | -2.3424E-02 | 3.2728E-03 |
| S4 | 2.6331E-02 | -1.4320E-03 | -1.9087E-01 | 8.0723E-01 | -1.5859E+00 | 1.7918E+00 | -1.1968E+00 | 4.3658E-01 | -6.6369E-02 |
| S5 | -3.2635E-02 | 2.6911E-02 | -1.7368E-01 | 4.7315E-01 | -7.8624E-01 | 8.3218E-01 | -5.4897E-01 | 2.0560E-01 | -3.2747E-02 |
| S6 | -6.0016E-02 | 3.8345E-02 | -1.4130E-01 | 3.5882E-01 | -6.2117E-01 | 7.1611E-01 | -5.1461E-01 | 2.0826E-01 | -3.5619E-02 |
| S7 | -4.3348E-02 | 3.8783E-02 | -1.9439E-01 | 4.6209E-01 | -7.4216E-01 | 7.5935E-01 | -4.7671E-01 | 1.6508E-01 | -2.3841E-02 |
| S8 | -4.2910E-02 | -8.4758E-03 | 1.1342E-02 | -1.8478E-02 | 4.7297E-03 | 7.8346E-03 | -7.7487E-03 | 2.7298E-03 | -3.4986E-04 |
| S9 | -4.0233E-02 | -8.5901E-02 | 1.3813E-01 | -9.8611E-02 | 3.4059E-02 | -3.9811E-03 | -9.0682E-04 | 3.2479E-04 | -2.7775E-05 |
| S10 | 1.1230E-01 | -2.9441E-01 | 3.0742E-01 | -1.8662E-01 | 6.8834E-02 | -1.5494E-02 | 2.0460E-03 | -1.4180E-04 | 3.7858E-06 |
| S11 | 1.1629E-01 | -1.6003E-01 | 9.4473E-02 | -3.5296E-02 | 9.2539E-03 | -1.9341E-03 | 3.1151E-04 | -3.0822E-05 | 1.2991E-06 |
| S12 | 1.1788E-01 | -5.2915E-02 | -3.4792E-03 | 1.4349E-02 | -6.8009E-03 | 1.5878E-03 | -2.0321E-04 | 1.3639E-05 | -3.7630E-07 |
| S13 | -8.8923E-02 | 4.3355E-02 | -1.4140E-02 | 4.5955E-03 | -1.1045E-03 | 1.6526E-04 | -1.4552E-05 | 6.9386E-07 | -1.3874E-08 |
| S14 | -1.6779E-01 | 9.3110E-02 | -3.9798E-02 | 1.1749E-02 | -2.3276E-03 | 2.9898E-04 | -2.3686E-05 | 1.0463E-06 | -1.9655E-08 |
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 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 4.30mm, 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 5.33mm, the half ImgH of the diagonal length of the effective pixel area on the imaging surface S17 is 4.12mm, the maximum half field angle Semi-FOV of the optical imaging lens is 43.1 °, and the f-number Fno of the optical imaging lens is 1.49.
Table 7 shows a basic parameter table of the optical imaging lens of embodiment 4, in which the units of the radius of curvature, the thickness/distance, and the focal length are all millimeters (mm).
TABLE 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 | -8.0874E-03 | 1.3554E-02 | -2.7558E-02 | 1.8838E-02 | 7.9991E-03 | -2.3900E-02 | 1.7055E-02 | -5.4935E-03 | 6.7145E-04 |
| S2 | -3.9271E-02 | 3.0520E-03 | 4.7861E-02 | -1.1006E-01 | 1.3198E-01 | -9.1273E-02 | 3.5300E-02 | -6.8254E-03 | 4.6874E-04 |
| S3 | -5.0949E-02 | 2.0907E-02 | 1.1205E-01 | -3.2210E-01 | 4.5392E-01 | -3.7175E-01 | 1.7751E-01 | -4.5488E-02 | 4.8158E-03 |
| S4 | -2.8966E-02 | 6.3877E-02 | -1.4141E-01 | 4.1033E-01 | -8.2679E-01 | 9.9854E-01 | -7.0196E-01 | 2.6460E-01 | -4.0973E-02 |
| S5 | -5.0533E-02 | 4.6832E-02 | -2.2411E-01 | 5.8231E-01 | -9.7966E-01 | 1.0373E+00 | -6.6752E-01 | 2.3915E-01 | -3.6194E-02 |
| S6 | -2.4767E-02 | -7.0238E-04 | -3.2466E-03 | -1.5935E-02 | 4.2364E-02 | -4.4787E-02 | 2.7048E-02 | -7.8505E-03 | 1.0912E-03 |
| S7 | -3.8624E-02 | 9.2921E-03 | -7.2878E-02 | 1.5772E-01 | -2.8054E-01 | 3.2979E-01 | -2.3688E-01 | 9.2533E-02 | -1.4909E-02 |
| S8 | -1.2583E-01 | 1.4228E-01 | -2.0545E-01 | 2.0126E-01 | -1.5245E-01 | 8.4217E-02 | -3.0950E-02 | 6.5869E-03 | -6.0115E-04 |
| S9 | -1.8283E-01 | 7.9274E-02 | 1.9185E-02 | -5.3681E-02 | 2.6728E-02 | -3.5578E-03 | -1.2478E-03 | 4.7042E-04 | -4.3966E-05 |
| S10 | 1.0086E-01 | -3.3618E-01 | 4.2113E-01 | -3.0214E-01 | 1.3266E-01 | -3.6201E-02 | 5.9719E-03 | -5.4360E-04 | 2.0913E-05 |
| S11 | 5.7994E-02 | -1.0918E-01 | 9.0007E-02 | -4.9478E-02 | 1.8753E-02 | -4.9221E-03 | 8.2920E-04 | -7.8131E-05 | 3.0815E-06 |
| S12 | 1.0068E-01 | -5.2199E-02 | 1.5649E-02 | 4.5740E-05 | -1.9544E-03 | 6.7962E-04 | -1.0651E-04 | 8.1823E-06 | -2.5033E-07 |
| S13 | -9.3141E-02 | 5.3241E-02 | -2.0557E-02 | 6.5857E-03 | -1.4351E-03 | 1.9438E-04 | -1.5666E-05 | 6.8974E-07 | -1.2797E-08 |
| S14 | -1.7057E-01 | 1.0406E-01 | -4.8090E-02 | 1.4954E-02 | -3.0580E-03 | 4.0019E-04 | -3.2020E-05 | 1.4196E-06 | -2.6631E-08 |
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 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 4.31mm, 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 5.33mm, the half ImgH of the diagonal length of the effective pixel area on the imaging surface S17 is 4.12mm, the maximum half field angle Semi-FOV of the optical imaging lens is 43.0 °, and the f-number Fno of the optical imaging lens is 1.49.
Table 9 shows a basic parameter table of the optical imaging lens of embodiment 5, in which the units of the radius of curvature, the thickness/distance, and the focal length are all millimeters (mm).
TABLE 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 | -6.3722E-03 | 7.7516E-03 | -2.0364E-02 | 2.0252E-02 | -8.5374E-03 | -2.6870E-03 | 4.2714E-03 | -1.6906E-03 | 2.2634E-04 |
| S2 | 1.6394E-02 | -1.7753E-02 | -3.0780E-01 | 7.9258E-01 | -9.3225E-01 | 6.2942E-01 | -2.5280E-01 | 5.6564E-02 | -5.4604E-03 |
| S3 | 4.2258E-02 | -5.0910E-02 | -1.7427E-01 | 5.3018E-01 | -6.1601E-01 | 3.8762E-01 | -1.3881E-01 | 2.6668E-02 | -2.1411E-03 |
| S4 | 1.5058E-03 | 6.3422E-02 | -3.1019E-01 | 9.0646E-01 | -1.5741E+00 | 1.6808E+00 | -1.0880E+00 | 3.8985E-01 | -5.8678E-02 |
| S5 | -7.8889E-02 | 2.6276E-02 | -2.4037E-02 | -2.9175E-02 | 7.9807E-02 | -5.2903E-02 | -8.9630E-03 | 2.4083E-02 | -6.8950E-03 |
| S6 | -5.2907E-02 | 2.4247E-03 | -2.3852E-03 | 2.1254E-02 | -1.2339E-01 | 2.5765E-01 | -2.5566E-01 | 1.2644E-01 | -2.4602E-02 |
| S7 | -3.9578E-02 | 1.8181E-02 | -1.4226E-01 | 3.6839E-01 | -6.2524E-01 | 6.6068E-01 | -4.2494E-01 | 1.5107E-01 | -2.2591E-02 |
| S8 | -4.2576E-02 | -9.7859E-03 | 5.0281E-04 | 8.3556E-03 | -2.4112E-02 | 2.4983E-02 | -1.3514E-02 | 3.7870E-03 | -4.4057E-04 |
| S9 | 1.1788E-02 | -1.9624E-01 | 2.6868E-01 | -1.9719E-01 | 7.9451E-02 | -1.6082E-02 | 7.5597E-04 | 2.4670E-04 | -3.0169E-05 |
| S10 | 1.7021E-01 | -4.0677E-01 | 4.3940E-01 | -2.8299E-01 | 1.1277E-01 | -2.7946E-02 | 4.1765E-03 | -3.4336E-04 | 1.1889E-05 |
| S11 | 1.6664E-01 | -2.3287E-01 | 1.4661E-01 | -5.7529E-02 | 1.5470E-02 | -3.0979E-03 | 4.5108E-04 | -4.0298E-05 | 1.5675E-06 |
| S12 | 1.3607E-01 | -8.2723E-02 | 7.7553E-03 | 1.5183E-02 | -8.4768E-03 | 2.0904E-03 | -2.7536E-04 | 1.8858E-05 | -5.2911E-07 |
| S13 | -8.7667E-02 | 4.2661E-02 | -1.3622E-02 | 4.3210E-03 | -1.0029E-03 | 1.4364E-04 | -1.2039E-05 | 5.4431E-07 | -1.0289E-08 |
| S14 | -1.8032E-01 | 1.0490E-01 | -4.6247E-02 | 1.4002E-02 | -2.8340E-03 | 3.7045E-04 | -2.9743E-05 | 1.3268E-06 | -2.5099E-08 |
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 concave object-side surface S3 and a convex image-side surface S4. The third lens element E3 has negative power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has 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 4.06mm, 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 5.33mm, the half ImgH of the diagonal length of the effective pixel area on the imaging surface S17 is 4.12mm, the maximum half field angle Semi-FOV of the optical imaging lens is 44.5 °, and the f-number Fno of the optical imaging lens is 1.49.
Table 11 shows a basic parameter table of the optical imaging lens of embodiment 6, in which the units of the radius of curvature, the thickness/distance, and the focal length are all millimeters (mm).
TABLE 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 high-order coefficient A of each of the aspherical mirror surfaces S1-S14 used in example 64、A6、A8、A10、A12、A14、A16、A18And A20。
| Flour mark | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | -6.0705E-03 | 1.2016E-02 | -2.5007E-02 | 1.5089E-02 | 1.7058E-02 | -3.7576E-02 | 2.7501E-02 | -9.3864E-03 | 1.2335E-03 |
| S2 | -1.1771E-02 | -2.0758E-02 | 2.4986E-03 | 4.8217E-02 | -1.2348E-01 | 1.5162E-01 | -1.0036E-01 | 3.4137E-02 | -4.6753E-03 |
| S3 | 3.8224E-03 | 9.9911E-03 | -1.6545E-01 | 4.9905E-01 | -7.4241E-01 | 6.6170E-01 | -3.5991E-01 | 1.0989E-01 | -1.4310E-02 |
| S4 | 9.8079E-03 | 6.8886E-02 | -5.5713E-01 | 1.6516E+00 | -2.7161E+00 | 2.7378E+00 | -1.6865E+00 | 5.8020E-01 | -8.4614E-02 |
| S5 | -2.5488E-02 | 8.4228E-02 | -5.8049E-01 | 1.4275E+00 | -2.0421E+00 | 1.8344E+00 | -1.0244E+00 | 3.2768E-01 | -4.5693E-02 |
| S6 | -7.4299E-02 | 3.8241E-02 | 5.0211E-02 | -4.1008E-01 | 9.2571E-01 | -1.0828E+00 | 7.1771E-01 | -2.5405E-01 | 3.7416E-02 |
| S7 | -6.6458E-02 | 7.5926E-02 | -2.7701E-01 | 6.0940E-01 | -8.9971E-01 | 8.4250E-01 | -4.8078E-01 | 1.5081E-01 | -1.9918E-02 |
| S8 | -5.4147E-02 | -1.7878E-02 | 8.2942E-02 | -1.8585E-01 | 2.2744E-01 | -1.6959E-01 | 7.5320E-02 | -1.8245E-02 | 1.8146E-03 |
| S9 | -8.8607E-02 | 5.6103E-02 | -8.6538E-02 | 9.2785E-02 | -5.9788E-02 | 2.3024E-02 | -5.2384E-03 | 6.4994E-04 | -3.3833E-05 |
| S10 | 7.5889E-02 | -1.2945E-01 | 8.0473E-02 | -2.5395E-02 | 2.2139E-03 | 1.0962E-03 | -3.9417E-04 | 5.1681E-05 | -2.5036E-06 |
| S11 | -1.3312E-03 | 4.4722E-02 | -7.1683E-02 | 4.6147E-02 | -1.7025E-02 | 3.7014E-03 | -4.5874E-04 | 2.9558E-05 | -7.5418E-07 |
| S12 | 6.2451E-02 | 6.0076E-04 | -1.1865E-02 | 5.4146E-03 | -1.6370E-03 | 3.5567E-04 | -4.8322E-05 | 3.5463E-06 | -1.0664E-07 |
| S13 | -8.4223E-02 | 3.0612E-02 | -4.2507E-03 | 7.1606E-04 | -1.9750E-04 | 3.5759E-05 | -3.5240E-06 | 1.7938E-07 | -3.7375E-09 |
| S14 | -1.1711E-01 | 4.4947E-02 | -1.3450E-02 | 2.8842E-03 | -4.4686E-04 | 4.8238E-05 | -3.3602E-06 | 1.3365E-07 | -2.2912E-09 |
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 negative power, and has a concave 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 4.11mm, 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 5.33mm, the half ImgH of the diagonal length of the effective pixel area on the imaging surface S17 is 4.12mm, the maximum half field angle Semi-FOV of the optical imaging lens is 43.8 °, and the f-number Fno of the optical imaging lens is 1.46.
Table 13 shows a basic parameter table of the optical imaging lens of embodiment 7, in which the units of the radius of curvature, the thickness/distance, and the focal length are all millimeters (mm).
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 | -6.2996E-03 | 8.3927E-03 | -2.9114E-03 | -3.7868E-02 | 8.5215E-02 | -8.6699E-02 | 4.7102E-02 | -1.3263E-02 | 1.5060E-03 |
| S2 | -2.1517E-02 | -5.5035E-02 | 1.5594E-01 | -3.0026E-01 | 3.8662E-01 | -3.0583E-01 | 1.4068E-01 | -3.4258E-02 | 3.3680E-03 |
| S3 | -2.9295E-02 | -2.5832E-02 | 9.5588E-02 | -1.4429E-01 | 1.9124E-01 | -1.7759E-01 | 9.5905E-02 | -2.6513E-02 | 2.8806E-03 |
| S4 | -1.6437E-03 | -2.9154E-02 | 7.7665E-02 | -1.2026E-03 | -2.1396E-01 | 3.7628E-01 | -3.1833E-01 | 1.3456E-01 | -2.2288E-02 |
| S5 | -3.4924E-02 | 1.2800E-02 | -1.7201E-01 | 4.8708E-01 | -7.6490E-01 | 7.4001E-01 | -4.3846E-01 | 1.4690E-01 | -2.1172E-02 |
| S6 | -2.7165E-02 | -6.7108E-02 | 2.1465E-01 | -5.0166E-01 | 7.7466E-01 | -7.2849E-01 | 4.0520E-01 | -1.1972E-01 | 1.4287E-02 |
| S7 | -4.9034E-02 | 1.5525E-02 | -1.7440E-01 | 4.6280E-01 | -7.6741E-01 | 7.9031E-01 | -4.9251E-01 | 1.6895E-01 | -2.4509E-02 |
| S8 | 9.4216E-03 | -3.8279E-01 | 1.2570E+00 | -2.4088E+00 | 2.7940E+00 | -2.0050E+00 | 8.6994E-01 | -2.0920E-01 | 2.1392E-02 |
| S9 | -5.8271E-02 | -5.3755E-02 | 1.0076E-01 | -7.7002E-02 | 2.8767E-02 | -4.5475E-03 | -1.8899E-04 | 1.5089E-04 | -1.3421E-05 |
| S10 | 2.2665E-01 | -4.8902E-01 | 5.0884E-01 | -3.1718E-01 | 1.2227E-01 | -2.9229E-02 | 4.1932E-03 | -3.2862E-04 | 1.0740E-05 |
| S11 | 1.0629E-01 | -1.7038E-01 | 1.2492E-01 | -6.0544E-02 | 2.0257E-02 | -4.7931E-03 | 7.5753E-04 | -6.9307E-05 | 2.7085E-06 |
| S12 | 1.1302E-01 | -6.4701E-02 | 1.5746E-02 | 3.2332E-03 | -3.4676E-03 | 1.0208E-03 | -1.4854E-04 | 1.0893E-05 | -3.2173E-07 |
| S13 | -1.0801E-01 | 6.6580E-02 | -3.0133E-02 | 1.1443E-02 | -2.9066E-03 | 4.5612E-04 | -4.2597E-05 | 2.1769E-06 | -4.6978E-08 |
| S14 | -1.6942E-01 | 9.6139E-02 | -4.1297E-02 | 1.2138E-02 | -2.3864E-03 | 3.0433E-04 | -2.3994E-05 | 1.0587E-06 | -1.9944E-08 |
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 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 4.32mm, 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 5.33mm, the half ImgH of the diagonal length of the effective pixel area on the imaging surface S17 is 4.12mm, the maximum half field angle Semi-FOV of the optical imaging lens is 42.9 °, and the f-number Fno of the optical imaging lens is 1.49.
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).
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。
| Flour mark | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | -5.5152E-03 | 3.8866E-03 | -3.3495E-03 | -1.4666E-02 | 3.4566E-02 | -3.5141E-02 | 1.8862E-02 | -5.2662E-03 | 5.9205E-04 |
| S2 | -3.7418E-02 | 9.4237E-03 | -3.3186E-02 | 9.6589E-02 | -1.3733E-01 | 1.1328E-01 | -5.5850E-02 | 1.5221E-02 | -1.7616E-03 |
| S3 | -4.5908E-02 | -5.1187E-03 | 1.1023E-01 | -2.3444E-01 | 3.1370E-01 | -2.6366E-01 | 1.3221E-01 | -3.5764E-02 | 3.9977E-03 |
| S4 | -2.5481E-02 | 6.4477E-02 | -2.4491E-01 | 7.8423E-01 | -1.4817E+00 | 1.6695E+00 | -1.1092E+00 | 3.9963E-01 | -5.9739E-02 |
| S5 | -3.5130E-02 | 6.3274E-02 | -2.7713E-01 | 7.1518E-01 | -1.1970E+00 | 1.2649E+00 | -8.1526E-01 | 2.9271E-01 | -4.4387E-02 |
| S6 | -4.4573E-02 | 5.4604E-02 | -1.7918E-01 | 3.8816E-01 | -5.7839E-01 | 5.7594E-01 | -3.6388E-01 | 1.3303E-01 | -2.1060E-02 |
| S7 | -5.8390E-02 | 2.0481E-04 | 6.1928E-02 | -2.7692E-01 | 5.1579E-01 | -5.6180E-01 | 3.6203E-01 | -1.2875E-01 | 1.9547E-02 |
| S8 | -6.7436E-02 | 1.0987E-02 | 1.2107E-02 | -6.4087E-02 | 7.3715E-02 | -4.5160E-02 | 1.4580E-02 | -2.0550E-03 | 2.3324E-05 |
| S9 | -8.2507E-02 | -4.8836E-02 | 9.6686E-02 | -6.6245E-02 | 1.5436E-02 | 3.8835E-03 | -3.1867E-03 | 7.1146E-04 | -5.5755E-05 |
| S10 | 1.0987E-01 | -2.9674E-01 | 3.2489E-01 | -2.1011E-01 | 8.4155E-02 | -2.1038E-02 | 3.1784E-03 | -2.6383E-04 | 9.1773E-06 |
| S11 | 7.3180E-02 | -1.1570E-01 | 8.2344E-02 | -4.0327E-02 | 1.3807E-02 | -3.3099E-03 | 5.1881E-04 | -4.6233E-05 | 1.7407E-06 |
| S12 | 9.4507E-02 | -4.7215E-02 | 1.2867E-02 | -3.8266E-04 | -9.5835E-04 | 2.9788E-04 | -4.0047E-05 | 2.5885E-06 | -6.5476E-08 |
| S13 | -9.5965E-02 | 5.5027E-02 | -2.1871E-02 | 7.1661E-03 | -1.5716E-03 | 2.1205E-04 | -1.6917E-05 | 7.3409E-07 | -1.3386E-08 |
| S14 | -1.6995E-01 | 9.7783E-02 | -4.2726E-02 | 1.2777E-02 | -2.5575E-03 | 3.3174E-04 | -2.6504E-05 | 1.1781E-06 | -2.2208E-08 |
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.
In summary, examples 1 to 8 each satisfy the relationship shown in table 17.
TABLE 17
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 (25)
1. An optical imaging lens, in order from an object side to an image side along an optical axis, comprising:
the first lens with positive focal power has a convex object-side surface and a concave image-side surface;
a second lens having an optical power;
a third lens having a refractive power, an image-side surface of which is concave;
a fourth lens having a positive optical power;
a fifth lens element with a focal power, wherein the object-side surface of the fifth lens element is convex and the image-side surface of the fifth lens element is concave;
the sixth lens with positive focal power has a convex object-side surface and a convex image-side surface; and
a seventh lens element with negative refractive power having a concave object-side surface and a concave image-side surface;
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, a half of a diagonal length ImgH of an effective pixel area on the imaging surface of the optical imaging lens, and
the total effective focal length f of the optical imaging lens meets the following requirements:
5.00mm<TTL/ImgH×f<6.00mm。
2. the optical imaging lens of claim 1, 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 and a half ImgH of a diagonal length of an effective pixel area on the imaging surface of the optical imaging lens satisfy:
TTL/ImgH<1.30。
3. the optical imaging lens according to claim 1, wherein the half ImgH of the diagonal length of the effective pixel area on the imaging plane of the optical imaging lens, 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:
17.00mm2<ImgH×f/tan2(Semi-FOV)<21.00mm2。
4. the optical imaging lens of claim 1, wherein the effective focal length f1 of the first lens and the effective focal length f6 of the sixth lens satisfy:
0.50<f1/f6<1.50。
5. the optical imaging lens of claim 1, wherein the combined focal length f56 of the fifth lens and the sixth lens and the distance BF L from the image side surface of the lens closest to the imaging surface on the optical axis satisfy:
7.00<f56/BFL<12.00。
6. the optical imaging lens of claim 1, wherein the radius of curvature R2 of the image side surface of the first lens and the total effective focal length f of the optical imaging lens satisfy:
0.50<R2/f<2.00。
7. the optical imaging lens of claim 1, wherein the radius of curvature R13 of the object-side surface of the seventh lens and the radius of curvature R14 of the image-side surface of the seventh lens satisfy:
5.00<(R13-R14)/(R13+R14)<8.00。
8. the optical imaging lens according to claim 1, wherein a separation distance T67 of the sixth lens and the seventh lens on the optical axis and a separation distance T56 of the fifth lens and the sixth lens on the optical axis satisfy:
2.00<T67/T56<5.00。
9. the optical imaging lens of claim 1, wherein a central thickness CT6 of the sixth lens on the optical axis and a central thickness CT7 of the seventh lens on the optical axis satisfy:
2.00<(CT6+CT7)/(CT6-CT7)<4.00。
10. the optical imaging lens of claim 1, wherein an on-axis distance 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, SAG51, and 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, SAG52 satisfy:
0.50<SAG51/SAG52<1.50。
11. the optical imaging lens of claim 1, wherein the maximum effective radius DT72 of the image side surface of the seventh lens and the maximum effective radius DT11 of the object side surface of the first lens satisfy:
2.00<DT72/DT11<3.00。
12. the optical imaging lens according to claim 1, wherein ImgH, which is half the diagonal length of an effective pixel area on an imaging plane of the optical imaging lens, satisfies:
ImgH>4.10mm。
13. the optical imaging lens of any one of claims 1 to 12, further comprising a diaphragm disposed at an object side surface of the first lens.
14. An optical imaging lens, in order from an object side to an image side along an optical axis, comprising:
the first lens with positive focal power has a convex object-side surface and a concave image-side surface;
a second lens having an optical power;
a third lens having a refractive power, an image-side surface of which is concave;
a fourth lens having a positive optical power;
a fifth lens element with a focal power, wherein the object-side surface of the fifth lens element is convex and the image-side surface of the fifth lens element is concave;
the sixth lens with positive focal power has a convex object-side surface and a convex image-side surface; and
a seventh lens element with negative refractive power having a concave object-side surface and a concave image-side surface;
wherein, half of the diagonal length ImgH of the effective pixel area on the imaging surface of the optical imaging lens, 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:
17.00mm2<ImgH×f/tan2(Semi-FOV)<21.00mm2。
15. the optical imaging lens of claim 14, wherein a 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 and a half ImgH of a diagonal length of an effective pixel area on the imaging surface of the optical imaging lens satisfy:
TTL/ImgH<1.30。
16. the optical imaging lens of claim 14, wherein the effective focal length f1 of the first lens and the effective focal length f6 of the sixth lens satisfy:
0.50<f1/f6<1.50。
17. the optical imaging lens of claim 14, wherein the combined focal length f56 of the fifth lens and the sixth lens and the distance BF L from the image side surface of the lens closest to the imaging surface on the optical axis satisfy:
7.00<f56/BFL<12.00。
18. the optical imaging lens of claim 14, wherein the radius of curvature R2 of the image side surface of the first lens and the total effective focal length f of the optical imaging lens satisfy:
0.50<R2/f<2.00。
19. the optical imaging lens of claim 14, wherein the radius of curvature R13 of the object-side surface of the seventh lens and the radius of curvature R14 of the image-side surface of the seventh lens satisfy:
5.00<(R13-R14)/(R13+R14)<8.00。
20. the optical imaging lens of claim 14, wherein a separation distance T67 between the sixth lens and the seventh lens on the optical axis and a separation distance T56 between the fifth lens and the sixth lens on the optical axis satisfy:
2.00<T67/T56<5.00。
21. the optical imaging lens of claim 14, wherein a central thickness CT6 of the sixth lens on the optical axis and a central thickness CT7 of the seventh lens on the optical axis satisfy:
2.00<(CT6+CT7)/(CT6-CT7)<4.00。
22. the optical imaging lens of claim 14, 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 and 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 satisfies SAG 52:
0.50<SAG51/SAG52<1.50。
23. the optical imaging lens of claim 14, wherein the maximum effective radius DT72 of the image side surface of the seventh lens and the maximum effective radius DT11 of the object side surface of the first lens satisfy:
2.00<DT72/DT11<3.00。
24. the optical imaging lens according to claim 14, wherein ImgH, which is half the diagonal length of an effective pixel area on an imaging plane of the optical imaging lens, satisfies:
ImgH>4.10mm。
25. the optical imaging lens of any one of claims 14 to 24, further comprising a stop disposed at an object side surface of the first lens.
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| CN113985574B (en) * | 2021-11-04 | 2024-01-16 | 浙江舜宇光学有限公司 | Optical imaging lens |
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