CN211043780U - Optical imaging lens - Google Patents
Optical imaging lens Download PDFInfo
- Publication number
- CN211043780U CN211043780U CN201921686735.9U CN201921686735U CN211043780U CN 211043780 U CN211043780 U CN 211043780U CN 201921686735 U CN201921686735 U CN 201921686735U CN 211043780 U CN211043780 U CN 211043780U
- Authority
- CN
- China
- Prior art keywords
- lens
- optical imaging
- imaging lens
- optical
- satisfy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Lenses (AREA)
Abstract
The application discloses an optical imaging lens, wherein the optical imaging lens comprises a first lens with focal power in order from an object side to an image side along an optical axis; a second lens having a refractive power, an image-side surface of which is concave; a third lens having optical power; a fourth lens having an optical power; a fifth lens having optical power; a sixth lens having optical power; a seventh lens having a positive refractive power, an object-side surface of which is convex; and an eighth lens having a negative refractive power, an object-side surface of which is concave; wherein, the half ImgH of the diagonal length of the effective pixel area on the imaging surface of the optical imaging lens satisfies: ImgH is more than or equal to 6.0mm, and the total effective focal length f of the optical imaging lens and the entrance pupil diameter EPD of the optical imaging lens meet the following requirements: f/EPD < 1.8.
Description
Technical Field
The present disclosure relates to an optical imaging lens, and more particularly, to an optical imaging lens including eight lenses.
Background
With the development of science and technology, the demand of the mobile phone market for mobile phone lenses is gradually increased. Meanwhile, with the continuous change of market demands, higher requirements are continuously provided for the performance and the setting requirements of the built-in optical imaging lens of the mobile phone by people. 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
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 an optical power; a second lens having a refractive power, an image-side surface of which is concave; a third lens having optical power; a fourth lens having an optical power; a fifth lens having optical power; a sixth lens having optical power; a seventh lens having a positive refractive power, an object-side surface of which is convex; and an eighth lens having a negative refractive power, an object side surface of which is concave.
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 is more than or equal to 6.0 mm.
In one embodiment, the total effective focal length f of the optical imaging lens and the entrance pupil diameter EPD of the optical imaging lens satisfy: f/EPD < 1.8.
In one embodiment, the total effective focal length f of the optical imaging lens and the effective focal length f1 of the first lens satisfy: 0.7< f/f1< 1.2.
In one embodiment, the effective focal length f8 of the eighth lens and the effective focal length f7 of the seventh lens satisfy: 0.4< | f8/f7| < 0.8.
In one embodiment, the radius of curvature R16 of the image-side surface of the eighth lens and the total effective focal length f of the optical imaging lens satisfy: 0.8< R16/f < 1.2.
In one embodiment, the radius of curvature R4 of the image-side surface of the second lens and the combined focal length f123 of the first, second, and third lenses satisfy: 0.2< R4/f123< 0.6.
In one embodiment, the radius of curvature R13 of the object-side surface of the seventh lens and the radius of curvature R15 of the object-side surface of the eighth lens satisfy: 0.8< R13/| R15| < 1.2.
In one embodiment, the radius of curvature R3 of the object-side surface of the second lens and the radius of curvature R1 of the object-side surface of the first lens satisfy: 0< (R3-R1)/(R3+ R1) < 0.5.
In one embodiment, the total effective focal length f of the optical imaging lens, the maximum half field angle HFOV of the optical imaging lens, and the 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 satisfy 0.5< f × tan (Semi-FOV)/TT L < 0.9.
In one embodiment, a sum ∑ AT of the separation distances on the optical axis of any adjacent two lenses of the first lens to the eighth lens and a sum ∑ CT of the central thicknesses on the optical axis of the first lens to the eighth lens satisfy 0.4< ∑ AT/∑ CT < 0.9.
In one embodiment, the edge thickness ET3 of the third lens and the central thickness CT3 of the third lens on the optical axis satisfy: 0.4< ET3/CT3< 1.0.
In one embodiment, an on-axis distance SAG61 from an intersection point of an object-side surface of the sixth lens and the optical axis to an effective radius vertex of the object-side surface of the sixth lens and an on-axis distance SAG71 from an intersection point of an object-side surface of the seventh lens and the optical axis to an effective radius vertex of the object-side surface of the seventh lens satisfy: 0.5< SAG61/SAG71< 0.9.
In one embodiment, the maximum effective radius DT71 of the object-side surface of the seventh lens and the maximum effective radius DT81 of the object-side surface of the eighth lens satisfy: 0.5< DT71/DT81< 0.8.
In one embodiment, a central thickness CT6 of the sixth lens on the optical axis, a central thickness CT7 of the seventh lens on the optical axis, and a separation distance T67 of the sixth lens and the seventh lens on the optical axis satisfy: 0.1< CT6/(T67+ CT7) < 0.6.
The optical imaging lens provided by the application comprises a plurality of lenses, such as a first lens to an eighth lens. The value range of half of the diagonal length of the effective pixel area on the imaging surface of the optical imaging lens is reasonably set, the proportional relation between the total effective focal length of the optical imaging lens and the entrance pupil diameter of the optical imaging lens is optimized, the focal power and the surface type of each lens are optimized, and the optical imaging lens is 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 light and thin.
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 eight lenses having optical powers, i.e., a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, and an eighth lens. The eight lenses are arranged in order from an object side to an image side along an optical axis. Each adjacent lens may have an air space therebetween.
In an exemplary embodiment, the first lens may have a positive optical power; the second lens can have negative focal power, and the image side surface of the second lens is a concave surface; 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 may have a positive power or a negative power; the sixth lens may have a positive optical power or a negative optical power; the seventh lens element may have a positive refractive power, and the object-side surface thereof is convex; and the eighth lens element may have a negative power, and the object-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 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 may be convex.
In an exemplary embodiment, the object-side surface of the third lens element may be convex and the image-side surface may be concave.
In an exemplary embodiment, the image-side surface of the fourth lens may be convex.
In an exemplary embodiment, an image side surface of the eighth lens may be concave.
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.gtoreq.6.0 mm, for example, 6.0 mm. ltoreq.ImgH <6.5 mm. The value range of half of the diagonal length of the effective pixel area on the imaging surface of the optical imaging lens is reasonably set, so that the optical system has a larger imaging surface, and the imaging definition of the optical system is favorably improved.
In an exemplary embodiment, the total effective focal length f of the optical imaging lens and the entrance pupil diameter EPD of the optical imaging lens satisfy: f/EPD <1.8, e.g., 1.6< f/EPD < 1.8. The proportion relation between the total effective focal length of the optical imaging lens and the entrance pupil diameter of the optical imaging lens is reasonably set, and the characteristics of high pixel and large aperture of an optical system are favorably realized.
In an exemplary embodiment, the total effective focal length f of the optical imaging lens and the effective focal length f1 of the first lens satisfy: 0.7< f/f1< 1.2. The ratio of the total effective focal length of the optical imaging lens to the effective focal length of the first lens is set within a reasonable numerical range, so that the contribution spherical aberration of the optical imaging lens is favorably controlled within a reasonable range, the negative spherical aberration of the contribution of the rear group of lenses can be effectively corrected, and the imaging quality of an on-axis view field of an optical system is improved.
In an exemplary embodiment, the effective focal length f8 of the eighth lens and the effective focal length f7 of the seventh lens satisfy: 0.4< | f8/f7| < 0.8. The proportional relation of the effective focal lengths of the seventh lens and the eighth lens is reasonably set, the focal power of the optical system is effectively distributed, the chromatic aberration and the field curvature of the optical system are favorably corrected, the spherical aberration generated by the seventh lens and the positive spherical aberration generated by the eighth lens are mutually offset, and the imaging quality of the optical system is improved.
In an exemplary embodiment, the radius of curvature R16 of the image-side surface of the eighth lens and the total effective focal length f of the optical imaging lens satisfy: 0.8< R16/f < 1.2. The proportional relation between the curvature radius of the image side surface of the eighth lens and the total effective focal length of the optical imaging lens is reasonably set, the eighth lens can be prevented from being excessively bent, the processing difficulty of the lens is favorably reduced, the chromatic aberration of a system is favorably balanced, and the distortion is reduced.
In an exemplary embodiment, the radius of curvature R4 of the image-side surface of the second lens and the combined focal length f123 of the first, second, and third lenses satisfy: 0.2< R4/f123< 0.6. The curvature radius of the image side surface of the second lens and the ratio of the combined focal length of the first lens, the second lens and the third lens are set within a reasonable numerical range, so that the field curvature and distortion of the optical imaging lens are improved, and the processing difficulty of the second lens is reduced.
In an exemplary embodiment, a radius of curvature R13 of the object-side surface of the seventh lens and a radius of curvature R15 of the object-side surface of the eighth lens satisfy: 0.8< R13/| R15| < 1.2. The size and the proportional relation of the curvature radius of the object side surface of the seventh lens and the curvature radius of the object side surface of the eighth lens are reasonably set, so that the incident angle of the chief ray of each view field in the optical system on the imaging surface can be favorably controlled, and the requirement that the chief ray incident angle is matched with a chip in the design of the optical system is met.
In an exemplary embodiment, the radius of curvature R3 of the object-side surface of the second lens and the radius of curvature R1 of the object-side surface of the first lens satisfy: 0< (R3-R1)/(R3+ R1) <0.5, for example, 0.3< (R3-R1)/(R3+ R1) < 0.5. The mutual relation between the curvature radius of the object side surface of the second lens and the curvature radius of the object side surface of the first lens is reasonably set, so that the deflection angle of the object side surface of the first lens at the marginal field of view is favorably controlled within a reasonable range, and the sensitivity of an optical system is reduced.
In an exemplary embodiment, the total effective focal length f of the optical imaging lens, the maximum half field angle Semi-FOV of the optical imaging lens, and the 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 satisfy 0.5< f × tan (Semi-FOV)/TT L <0.9, for example, 0.7< f × tan (Semi-FOV)/TT L < 0.9.
In an exemplary embodiment, a ratio of a sum ∑ AT of the distance between any two adjacent lenses of the first lens to the eighth lens on the optical axis to a sum ∑ CT of the center thickness of the first lens to the eighth lens on the optical axis satisfies 0.4< ∑ AT/∑ CT <0.9, and a ratio of a sum of the distance between any two adjacent lenses of the first lens to the eighth lens on the optical axis to a sum of the center thickness of the first lens to the eighth lens on the optical axis is reasonably set, so that processing and assembling characteristics of the imaging lens can be ensured, and problems of interference between lenses before and after assembling due to an excessively small gap between lenses can be avoided.
In an exemplary embodiment, the edge thickness ET3 of the third lens and the central thickness CT3 of the third lens on the optical axis satisfy: 0.4< ET3/CT3<1.0, e.g., 0.6< ET3/CT3< 1.0. The edge thickness of the third lens and the proportional relation of the center thickness of the third lens on the optical axis are reasonably set, so that the lens processing and forming are facilitated, the deformation generated in the lens assembling process is reduced, and the assembling difficulty is reduced.
In an exemplary embodiment, an on-axis distance SAG61 from an intersection point of an object-side surface of the sixth lens and the optical axis to an effective radius vertex of the object-side surface of the sixth lens and an on-axis distance SAG71 from an intersection point of an object-side surface of the seventh lens and the optical axis to an effective radius vertex of the object-side surface of the seventh lens satisfy: 0.5< SAG61/SAG71<0.9, e.g., 0.5< SAG61/SAG71< 0.7. The proportional relation between the axial distance from the intersection point of the object side surface of the sixth lens and the optical axis to the effective radius peak of the object side surface of the sixth lens and the axial distance from the intersection point of the object side surface of the seventh lens and the optical axis to the axial distance from the effective radius peak of the object side surface of the seventh lens is reasonably set, the sixth lens and the seventh lens can be prevented from being too bent, the processing difficulty of the lenses is favorably reduced, and the assembly stability of the optical imaging lens group is improved.
In an exemplary embodiment, the maximum effective radius DT71 of the object-side surface of the seventh lens and the maximum effective radius DT81 of the object-side surface of the eighth lens satisfy: 0.5< DT71/DT81< 0.8. The proportional relation between the maximum effective radius of the object side surface of the seventh lens and the maximum effective radius of the object side surface of the eighth lens is reasonably set, so that the overlarge aperture difference between the seventh lens and the eighth lens can be avoided, the difficulty in assembling the lens is reduced, and the stability in assembling the lens is improved.
In an exemplary embodiment, a center thickness CT6 of the sixth lens on the optical axis, a center thickness CT7 of the seventh lens on the optical axis, and a separation distance T67 of the sixth lens and the seventh lens on the optical axis satisfy: 0.1< CT6/(T67+ CT7) <0.6, for example, 0.3< CT6/(T67+ CT7) < 0.6. The reasonable center thickness of the sixth lens on the optical axis, the center thickness of the seventh lens on the optical axis and the mutual relation of the spacing distances between the sixth lens and the seventh lens on the optical axis are set, so that the size of the optical imaging lens is reduced, the overlarge size of the lens is avoided, the assembly difficulty of the lenses is reduced, and the high space utilization rate is realized.
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 optical imaging lens according to the above-described embodiment of the present application may employ a plurality of lenses, for example, the above eight lenses. The optical imaging lens meets the requirements of large aperture, large image plane, high pixel, portability and the like, and still has clear imaging effect in the shooting environment with insufficient light such as overcast and rainy days, dusk and the like.
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 eighth 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, the seventh lens, and the eighth lens is an aspherical mirror surface. Optionally, each of the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens, the seventh lens and the eighth 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 eight lenses are exemplified in the embodiment, the optical imaging lens is not limited to include eight 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, an eighth lens E8, a filter E9, and an image forming surface S19.
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 concave object-side surface S9 and a convex image-side surface S10. The sixth lens element E6 has positive power, and has a concave object-side surface S11 and a convex image-side surface S12. The seventh lens element E7 has positive power, and has a convex object-side surface S13 and a concave image-side surface S14. The eighth lens element E8 has negative power, and has a concave object-side surface S15 and a concave image-side surface S16. Filter E9 has an object side S17 and an image side S18. The light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging surface S19.
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 6.49mm, the distance TT L on the optical axis from the object-side surface S1 of the first lens E1 to the imaging surface S19 is 8.00mm, the half ImgH of the diagonal length of the effective pixel area on the imaging surface S19 is 6.27mm, 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 1.68.
In embodiment 1, the object-side surface and the image-side surface of any one of the first lens E1 through the eighth lens E8 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 S16 used in example 14、A6、A8、A10、A12、A14、A16、A18And A20。
| Flour mark | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | 1.6297E-04 | 4.4260E-04 | -2.1260E-04 | 4.6563E-05 | 4.4005E-06 | -3.6651E-06 | 5.3780E-07 | -4.3224E-08 | 0.0000E+00 |
| S2 | -7.9080E-03 | 3.9420E-03 | -1.2089E-03 | 2.1196E-04 | -1.8948E-05 | 4.6528E-07 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S3 | -2.4097E-02 | 1.0668E-02 | -3.2863E-03 | 8.0415E-04 | -1.6575E-04 | 2.3251E-05 | -1.0118E-06 | 0.0000E+00 | 0.0000E+00 |
| S4 | -1.6979E-02 | 9.4060E-03 | -5.0210E-03 | 3.6188E-03 | -1.9219E-03 | 5.2694E-04 | -4.3340E-05 | -3.4553E-06 | 0.0000E+00 |
| S5 | 4.4966E-04 | -2.5017E-03 | 2.9881E-03 | -2.6830E-03 | 1.6745E-03 | -4.6835E-04 | -9.2629E-07 | 4.0140E-05 | -7.3286E-06 |
| S6 | -4.9584E-03 | -8.2263E-03 | 1.3267E-02 | -1.7590E-02 | 1.5081E-02 | -7.9732E-03 | 2.5549E-03 | -4.4775E-04 | 3.2940E-05 |
| S7 | -8.0963E-03 | -2.3979E-03 | -1.0969E-02 | 1.6334E-02 | -1.4900E-02 | 8.2523E-03 | -2.7423E-03 | 4.9697E-04 | -3.7522E-05 |
| S8 | 2.3818E-02 | -9.6287E-02 | 1.2146E-01 | -1.1010E-01 | 6.8226E-02 | -2.7754E-02 | 6.9940E-03 | -9.8484E-04 | 5.9298E-05 |
| S9 | 1.2659E-02 | -1.0493E-01 | 1.2726E-01 | -1.0763E-01 | 6.4059E-02 | -2.5242E-02 | 6.1314E-03 | -8.1978E-04 | 4.5749E-05 |
| S10 | -7.5600E-03 | -2.8490E-02 | 2.4770E-02 | -1.4057E-02 | 5.7866E-03 | -1.6611E-03 | 3.0412E-04 | -3.1001E-05 | 1.3200E-06 |
| S11 | -7.4632E-03 | 4.3832E-03 | -3.5849E-03 | 1.4809E-03 | -4.1846E-04 | 7.9525E-05 | -9.8345E-06 | 7.1440E-07 | -2.2625E-08 |
| S12 | -4.6008E-02 | 1.7166E-02 | -5.0737E-03 | 1.1092E-03 | -1.6965E-04 | 1.7785E-05 | -1.1950E-06 | 4.4125E-08 | -6.2365E-10 |
| S13 | 9.9909E-03 | -9.4992E-03 | 2.8090E-03 | -8.4727E-04 | 1.7864E-04 | -2.3696E-05 | 1.9108E-06 | -8.4869E-08 | 1.5787E-09 |
| S14 | 2.5586E-02 | -7.9918E-03 | 5.2096E-04 | 8.8748E-05 | -2.4577E-05 | 2.8236E-06 | -1.8010E-07 | 6.0945E-09 | -8.4670E-11 |
| S15 | -9.9321E-03 | 9.5546E-04 | 2.2278E-04 | -4.6112E-05 | 3.8452E-06 | -1.8045E-07 | 5.0073E-09 | -7.7264E-11 | 5.1437E-13 |
| S16 | -2.1176E-02 | 3.2652E-03 | -4.7106E-04 | 5.0185E-05 | -3.5891E-06 | 1.6257E-07 | -4.4325E-09 | 6.6237E-11 | -4.1683E-13 |
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, an eighth lens E8, a filter E9, and an image forming surface S19.
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 concave object-side surface S7 and a convex image-side surface S8. The fifth lens element E5 has negative power, and has a concave 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 concave image-side surface S12. The seventh lens element E7 has positive power, and has a convex object-side surface S13 and a concave image-side surface S14. The eighth lens element E8 has negative power, and has a concave object-side surface S15 and a concave image-side surface S16. Filter E9 has an object side S17 and an image side S18. The light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging surface S19.
In the present embodiment, the total effective focal length f of the optical imaging lens is 6.58mm, the distance TT L on the optical axis from the object-side surface S1 of the first lens E1 to the imaging surface S19 is 8.04mm, the half ImgH of the diagonal length of the effective pixel area on the imaging surface S19 is 6.00mm, the maximum half field angle Semi-FOV of the optical imaging lens is 41.5 °, and the f-number Fno of the optical imaging lens is 1.72.
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 eighth lens E8 are aspheric. Table 4 below shows the high-order coefficient A of each of the aspherical mirror surfaces S1-S16 used in example 24、A6、A8、A10、A12、A14、A16、A18And A20。
| Flour mark | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | 7.5968E-04 | 5.6215E-05 | 3.2410E-05 | -8.3292E-06 | -1.9856E-06 | 1.4490E-06 | -3.7035E-07 | 0.0000E+00 | 0.0000E+00 |
| S2 | -7.6269E-03 | 6.6637E-03 | -3.4639E-03 | 1.1113E-03 | -2.0451E-04 | 1.6094E-05 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S3 | -1.9992E-02 | 1.1880E-02 | -5.1786E-03 | 1.5854E-03 | -2.5182E-04 | 6.1037E-06 | 2.6396E-06 | 0.0000E+00 | 0.0000E+00 |
| S4 | -1.2684E-02 | 8.5126E-03 | -4.5283E-03 | 2.7180E-03 | -1.1801E-03 | 3.2146E-04 | -3.7539E-05 | 0.0000E+00 | 0.0000E+00 |
| S5 | -1.6352E-03 | -4.1052E-03 | 1.0973E-02 | -1.6629E-02 | 1.6007E-02 | -9.5023E-03 | 3.4616E-03 | -7.0405E-04 | 6.1191E-05 |
| S6 | -7.3307E-03 | -3.4575E-04 | -2.1822E-03 | 3.6980E-03 | -3.1390E-03 | 1.6103E-03 | -4.4961E-04 | 6.4104E-05 | -3.7157E-06 |
| S7 | -8.6341E-03 | -8.8012E-03 | 5.6650E-03 | -4.1863E-03 | -2.0242E-04 | 2.0689E-03 | -1.3604E-03 | 3.9162E-04 | -4.4585E-05 |
| S8 | 8.3152E-03 | -5.2090E-02 | 5.5842E-02 | -4.3951E-02 | 2.3883E-02 | -8.9136E-03 | 2.2080E-03 | -3.2740E-04 | 2.1859E-05 |
| S9 | 2.8377E-04 | -5.8579E-02 | 4.5796E-02 | -1.9365E-02 | 2.7877E-03 | 1.3672E-03 | -7.6054E-04 | 1.4577E-04 | -1.0250E-05 |
| S10 | -5.5774E-03 | -3.0351E-02 | 2.2388E-02 | -9.8501E-03 | 2.7271E-03 | -4.0975E-04 | 1.4185E-05 | 4.1947E-06 | -4.1283E-07 |
| S11 | -1.5048E-02 | 6.2987E-03 | -2.6854E-03 | 7.8531E-04 | -1.9710E-04 | 3.5965E-05 | -4.2324E-06 | 2.9253E-07 | -8.9708E-09 |
| S12 | -4.5483E-02 | 1.7023E-02 | -5.2547E-03 | 1.4941E-03 | -3.6287E-04 | 6.1252E-05 | -6.2638E-06 | 3.4556E-07 | -7.8891E-09 |
| S13 | 1.7142E-03 | -2.3821E-03 | -1.1311E-05 | 5.1850E-05 | -1.4674E-05 | 2.2352E-06 | -1.7423E-07 | 6.7515E-09 | -1.0597E-10 |
| S14 | 2.4721E-02 | -7.0064E-03 | 6.7585E-04 | -1.2180E-05 | -6.5349E-06 | 1.0567E-06 | -7.7204E-08 | 2.7798E-09 | -3.9634E-11 |
| S15 | -8.9204E-03 | 1.1194E-03 | 8.9337E-05 | -2.3274E-05 | 1.8956E-06 | -8.3642E-08 | 2.1451E-09 | -3.0160E-11 | 1.7989E-13 |
| S16 | -2.2183E-02 | 3.7639E-03 | -5.5413E-04 | 5.7869E-05 | -4.0074E-06 | 1.7633E-07 | -4.7099E-09 | 6.9662E-11 | -4.3910E-13 |
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, an eighth lens E8, a filter E9, and an image forming surface S19.
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 positive power, and has a convex object-side surface S13 and a concave image-side surface S14. The eighth lens element E8 has negative power, and has a concave object-side surface S15 and a concave image-side surface S16. Filter E9 has an object side S17 and an image side S18. The light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging surface S19.
In the present embodiment, the total effective focal length f of the optical imaging lens is 6.64mm, the distance TT L on the optical axis from the object-side surface S1 of the first lens E1 to the imaging surface S19 is 8.06mm, the half ImgH of the diagonal length of the effective pixel area on the imaging surface S19 is 6.00mm, the maximum half field angle Semi-FOV of the optical imaging lens is 41.3 °, and the f-number Fno of the optical imaging lens is 1.73.
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 eighth lens E8 are aspheric. Table 6 below shows the high-order coefficient A of each of the aspherical mirror surfaces S1-S16 used in example 34、A6、A8、A10、A12、A14、A16、A18And A20。
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, an eighth lens E8, a filter E9, and an image forming surface S19.
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 negative power, and has a concave object-side surface S11 and a convex image-side surface S12. The seventh lens element E7 has positive power, and has a convex object-side surface S13 and a concave image-side surface S14. The eighth lens element E8 has negative power, and has a concave object-side surface S15 and a concave image-side surface S16. Filter E9 has an object side S17 and an image side S18. The light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging surface S19.
In the present embodiment, the total effective focal length f of the optical imaging lens is 6.67mm, the distance TT L on the optical axis from the object-side surface S1 of the first lens E1 to the imaging surface S19 is 8.04mm, the half ImgH of the diagonal length of the effective pixel area on the imaging surface S19 is 6.10mm, the maximum half field angle Semi-FOV of the optical imaging lens is 41.9 °, and the f-number Fno of the optical imaging lens is 1.73.
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 eighth lens E8 are aspheric. Table 8 below shows the high-order coefficient A of each of the aspherical mirror surfaces S1-S16 used in example 44、A6、A8、A10、A12、A14、A16、A18And A20。
| Flour mark | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | 5.8723E-04 | -1.7870E-04 | 2.7986E-04 | -1.4529E-04 | 1.7595E-05 | 1.6191E-05 | -7.9781E-06 | 1.3621E-06 | -8.3281E-08 |
| S2 | -6.5663E-03 | 3.2758E-03 | -1.4057E-04 | -1.4727E-03 | 1.4472E-03 | -7.3809E-04 | 2.1720E-04 | -3.4754E-05 | 2.3471E-06 |
| S3 | -2.6468E-02 | 1.2743E-02 | -2.9436E-03 | -9.6453E-04 | 1.4068E-03 | -7.5368E-04 | 2.3574E-04 | -4.1644E-05 | 3.2253E-06 |
| S4 | -2.0497E-02 | 1.1580E-02 | -2.3710E-03 | -1.4413E-03 | 1.8327E-03 | -8.7136E-04 | 1.7350E-04 | 7.0225E-06 | -5.5000E-06 |
| S5 | 3.6773E-04 | -2.5261E-03 | 4.4379E-03 | -5.4763E-03 | 4.1383E-03 | -1.7000E-03 | 3.6178E-04 | -1.7000E-05 | -3.8990E-06 |
| S6 | -5.4061E-03 | 1.0791E-05 | -4.3853E-03 | 4.5765E-03 | -2.2436E-03 | 2.8073E-04 | 2.6447E-04 | -1.1451E-04 | 1.3890E-05 |
| S7 | -6.6498E-03 | -1.2864E-02 | 1.6670E-02 | -2.3161E-02 | 1.9350E-02 | -1.0294E-02 | 3.3324E-03 | -5.8690E-04 | 4.1367E-05 |
| S8 | 9.9200E-03 | -7.2634E-02 | 8.8139E-02 | -7.1592E-02 | 3.8523E-02 | -1.3835E-02 | 3.2196E-03 | -4.4081E-04 | 2.6930E-05 |
| S9 | 6.3640E-03 | -7.7531E-02 | 7.2681E-02 | -4.1573E-02 | 1.4852E-02 | -3.1032E-03 | 3.2067E-04 | -5.3277E-06 | -1.1397E-06 |
| S10 | 5.6018E-04 | -3.7161E-02 | 2.7511E-02 | -1.2373E-02 | 3.5560E-03 | -6.0362E-04 | 4.7263E-05 | 6.1920E-07 | -2.4300E-07 |
| S11 | -8.0241E-03 | 1.8631E-03 | -1.7882E-03 | 9.5977E-04 | -3.3261E-04 | 6.8906E-05 | -8.5253E-06 | 5.8882E-07 | -1.7216E-08 |
| S12 | -4.2990E-02 | 1.5497E-02 | -5.2764E-03 | 1.6980E-03 | -4.1931E-04 | 6.7893E-05 | -6.6024E-06 | 3.4808E-07 | -7.6372E-09 |
| S13 | 6.9174E-03 | -8.1324E-03 | 2.3122E-03 | -6.0108E-04 | 1.1263E-04 | -1.4079E-05 | 1.1132E-06 | -4.9067E-08 | 8.9913E-10 |
| S14 | 2.6803E-02 | -9.9623E-03 | 1.5776E-03 | -1.6593E-04 | 1.0733E-05 | -2.2584E-07 | -1.7776E-08 | 1.2460E-09 | -2.2999E-11 |
| S15 | -9.0025E-03 | 8.8325E-04 | 1.7604E-04 | -3.6327E-05 | 2.9675E-06 | -1.3589E-07 | 3.6591E-09 | -5.4279E-11 | 3.4247E-13 |
| S16 | -2.4467E-02 | 4.4921E-03 | -7.3142E-04 | 8.4201E-05 | -6.3790E-06 | 3.0628E-07 | -8.9390E-09 | 1.4485E-10 | -1.0021E-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, an eighth lens E8, a filter E9, and an image forming surface S19.
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 concave object-side surface S9 and a convex image-side surface S10. The sixth lens element E6 has negative power, and has a convex object-side surface S11 and a concave image-side surface S12. The seventh lens element E7 has positive power, and has a convex object-side surface S13 and a concave image-side surface S14. The eighth lens element E8 has negative power, and has a concave object-side surface S15 and a concave image-side surface S16. Filter E9 has an object side S17 and an image side S18. The light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging surface S19.
In the present embodiment, the total effective focal length f of the optical imaging lens is 6.53mm, the distance TT L on the optical axis from the object-side surface S1 of the first lens E1 to the imaging surface S19 is 8.04mm, the half ImgH of the diagonal length of the effective pixel area on the imaging surface S19 is 6.00mm, the maximum half field angle Semi-FOV of the optical imaging lens is 41.8 °, and the f-number Fno of the optical imaging lens is 1.69.
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 eighth lens E8 are aspheric. Table 10 below shows the high-order coefficient A of each of the aspherical mirror surfaces S1-S16 used in example 54、A6、A8、A10、A12、A14、A16、A18And A20。
| Flour mark | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | 5.7497E-04 | 1.4003E-04 | -1.3795E-05 | 6.8349E-06 | -3.5230E-06 | 1.2634E-06 | -3.1263E-07 | 0.0000E+00 | 0.0000E+00 |
| S2 | -6.8698E-03 | 4.5026E-03 | -2.1725E-03 | 7.2742E-04 | -1.4916E-04 | 1.3192E-05 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S3 | -2.3347E-02 | 1.0847E-02 | -2.8434E-03 | 6.6420E-05 | 2.6099E-04 | -8.7151E-05 | 1.0187E-05 | 0.0000E+00 | 0.0000E+00 |
| S4 | -1.7689E-02 | 1.0922E-02 | -5.3569E-03 | 3.1533E-03 | -1.4921E-03 | 4.0639E-04 | -3.6720E-05 | -2.3346E-06 | 0.0000E+00 |
| S5 | 5.7878E-04 | -4.0609E-03 | 9.4945E-03 | -1.5250E-02 | 1.5469E-02 | -9.6211E-03 | 3.6372E-03 | -7.5620E-04 | 6.6218E-05 |
| S6 | -5.0896E-03 | -2.4613E-03 | 2.1490E-04 | -1.7633E-04 | 6.6295E-04 | -6.3057E-04 | 3.2490E-04 | -7.5412E-05 | 6.1102E-06 |
| S7 | -7.7614E-03 | -1.0186E-02 | 8.1059E-03 | -8.3873E-03 | 4.1834E-03 | -6.8108E-04 | -3.3769E-04 | 1.8545E-04 | -2.7372E-05 |
| S8 | 1.2285E-02 | -6.0786E-02 | 6.5698E-02 | -5.1861E-02 | 2.8168E-02 | -1.0454E-02 | 2.5688E-03 | -3.7825E-04 | 2.5158E-05 |
| S9 | 3.9612E-03 | -6.5909E-02 | 5.4308E-02 | -2.5495E-02 | 5.4814E-03 | 6.7860E-04 | -6.7261E-04 | 1.4339E-04 | -1.0608E-05 |
| S10 | -4.6436E-03 | -3.1287E-02 | 2.3583E-02 | -1.0790E-02 | 3.2197E-03 | -5.7634E-04 | 4.8185E-05 | 4.4632E-07 | -2.4404E-07 |
| S11 | -7.3980E-03 | 2.6245E-03 | -1.7482E-03 | 5.8758E-04 | -1.5363E-04 | 2.8100E-05 | -3.3053E-06 | 2.2529E-07 | -6.5427E-09 |
| S12 | -4.5729E-02 | 1.7118E-02 | -5.1790E-03 | 1.2917E-03 | -2.6078E-04 | 3.7926E-05 | -3.4701E-06 | 1.7423E-07 | -3.6334E-09 |
| S13 | 6.3442E-03 | -6.8031E-03 | 1.8064E-03 | -5.1248E-04 | 1.0540E-04 | -1.3974E-05 | 1.1397E-06 | -5.1153E-08 | 9.5468E-10 |
| S14 | 2.6261E-02 | -8.8324E-03 | 1.0994E-03 | -6.6372E-05 | -1.1468E-06 | 6.0524E-07 | -5.0222E-08 | 1.8484E-09 | -2.6069E-11 |
| S15 | -9.3812E-03 | 1.3277E-03 | 4.4167E-05 | -1.7709E-05 | 1.4797E-06 | -6.4505E-08 | 1.6170E-09 | -2.2168E-11 | 1.2909E-13 |
| S16 | -2.3709E-02 | 4.2203E-03 | -6.5135E-04 | 7.0225E-05 | -4.9823E-06 | 2.2395E-07 | -6.1058E-09 | 9.2193E-11 | -5.9357E-13 |
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, an eighth lens E8, a filter E9, and an image forming surface S19.
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 concave object-side surface S9 and a convex image-side surface S10. The sixth lens element E6 has positive power, and has a convex object-side surface S11 and a concave image-side surface S12. The seventh lens element E7 has positive power, and has a convex object-side surface S13 and a concave image-side surface S14. The eighth lens element E8 has negative power, and has a concave object-side surface S15 and a concave image-side surface S16. Filter E9 has an object side S17 and an image side S18. The light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging surface S19.
In the present embodiment, the total effective focal length f of the optical imaging lens is 6.55mm, the distance TT L on the optical axis from the object-side surface S1 of the first lens E1 to the imaging surface S19 is 8.03mm, the half ImgH of the diagonal length of the effective pixel region on the imaging surface S19 is 6.10mm, the maximum half field angle Semi-FOV of the optical imaging lens is 42.1 °, and the f-number Fno of the optical imaging lens is 1.70.
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 eighth lens E8 are aspheric. Table 12 below shows the high-order coefficient A of each of the aspherical mirror surfaces S1-S16 used in example 64、A6、A8、A10、A12、A14、A16、A18And A20。
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, an eighth lens E8, a filter E9, and an image forming surface S19.
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 concave 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 concave image-side surface S12. The seventh lens element E7 has positive power, and has a convex object-side surface S13 and a concave image-side surface S14. The eighth lens element E8 has negative power, and has a concave object-side surface S15 and a concave image-side surface S16. Filter E9 has an object side S17 and an image side S18. The light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging surface S19.
In the present embodiment, the total effective focal length f of the optical imaging lens is 6.52mm, the distance TT L on the optical axis from the object-side surface S1 of the first lens E1 to the imaging surface S19 is 8.01mm, the half ImgH of the diagonal length of the effective pixel area on the imaging surface S19 is 6.27mm, 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 1.69.
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 eighth lens E8 are aspheric. Table 14 below shows the high-order coefficient A of each of the aspherical mirror surfaces S1-S16 used in example 74、A6、A8、A10、A12、A14、A16、A18And A20。
| Flour mark | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | 5.7196E-04 | -9.3337E-05 | 1.9045E-04 | -1.0983E-04 | 3.6851E-05 | -7.7153E-06 | 9.8775E-07 | -8.8714E-08 | 0.0000E+00 |
| S2 | -7.6427E-03 | 3.2533E-03 | -7.2044E-04 | 3.9117E-05 | 9.8420E-06 | -1.2520E-06 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S3 | -2.2157E-02 | 6.8755E-03 | 7.5993E-04 | -1.7372E-03 | 7.8686E-04 | -1.6937E-04 | 1.5176E-05 | 0.0000E+00 | 0.0000E+00 |
| S4 | -1.5503E-02 | 8.2168E-03 | -4.8834E-03 | 4.1847E-03 | -2.3294E-03 | 6.4452E-04 | -5.4024E-05 | -4.1803E-06 | 0.0000E+00 |
| S5 | 1.6169E-03 | -4.3575E-03 | 6.7422E-03 | -9.2489E-03 | 8.6676E-03 | -4.9442E-03 | 1.7030E-03 | -3.1584E-04 | 2.3999E-05 |
| S6 | -5.4709E-03 | -6.9406E-04 | -7.9884E-03 | 1.4888E-02 | -1.4813E-02 | 8.9509E-03 | -3.1962E-03 | 6.2739E-04 | -5.2109E-05 |
| S7 | -6.7314E-03 | -1.0382E-02 | 8.3065E-03 | -1.1373E-02 | 1.0049E-02 | -5.9337E-03 | 2.2014E-03 | -4.6244E-04 | 4.1454E-05 |
| S8 | 1.9573E-02 | -8.0853E-02 | 9.4993E-02 | -8.1562E-02 | 4.8195E-02 | -1.8861E-02 | 4.6325E-03 | -6.4592E-04 | 3.9175E-05 |
| S9 | 9.4928E-03 | -8.8449E-02 | 9.6124E-02 | -7.3292E-02 | 3.9748E-02 | -1.4340E-02 | 3.1927E-03 | -3.8999E-04 | 1.9694E-05 |
| S10 | -6.3521E-03 | -2.9830E-02 | 2.4959E-02 | -1.3805E-02 | 5.5710E-03 | -1.5577E-03 | 2.7604E-04 | -2.7187E-05 | 1.1187E-06 |
| S11 | -8.9131E-03 | 4.9917E-03 | -3.6984E-03 | 1.5116E-03 | -4.4348E-04 | 8.9741E-05 | -1.1751E-05 | 8.8329E-07 | -2.8330E-08 |
| S12 | -4.3034E-02 | 1.5319E-02 | -4.1573E-03 | 8.1606E-04 | -1.1727E-04 | 1.2536E-05 | -9.1214E-07 | 3.7609E-08 | -6.2098E-10 |
| S13 | 1.0549E-02 | -9.5332E-03 | 2.6098E-03 | -7.0883E-04 | 1.4333E-04 | -1.8917E-05 | 1.5342E-06 | -6.8393E-08 | 1.2697E-09 |
| S14 | 2.7480E-02 | -9.6987E-03 | 1.0754E-03 | -3.7570E-06 | -1.5339E-05 | 2.2190E-06 | -1.5341E-07 | 5.3597E-09 | -7.5320E-11 |
| S15 | -8.4575E-03 | 7.0667E-04 | 1.8152E-04 | -3.2847E-05 | 2.4209E-06 | -9.8897E-08 | 2.3406E-09 | -3.0149E-11 | 1.6438E-13 |
| S16 | -2.1991E-02 | 3.5198E-03 | -4.9095E-04 | 4.9544E-05 | -3.3773E-06 | 1.4707E-07 | -3.8720E-09 | 5.5892E-11 | -3.3896E-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, an eighth lens E8, a filter E9, and an image forming surface S19.
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 concave 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 positive power, and has a convex object-side surface S13 and a concave image-side surface S14. The eighth lens element E8 has negative power, and has a concave object-side surface S15 and a concave image-side surface S16. Filter E9 has an object side S17 and an image side S18. The light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging surface S19.
In the present embodiment, the total effective focal length f of the optical imaging lens is 6.51mm, the distance TT L on the optical axis from the object-side surface S1 of the first lens E1 to the imaging surface S19 is 8.01mm, the half ImgH of the diagonal length of the effective pixel area on the imaging surface S19 is 6.27mm, 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 1.69.
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).
In embodiment 8, both the object-side surface and the image-side surface of any one of the first lens E1 through the eighth lens E8 are aspheric. Table 16 below shows the high-order coefficient A of each of the aspherical mirror surfaces S1-S16 used in example 84、A6、A8、A10、A12、A14、A16、A18And A20。
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, an eighth lens E8, a filter E9, and an image forming surface S19.
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 concave object-side surface S9 and a convex image-side surface S10. The sixth lens element E6 has positive power, and has a convex object-side surface S11 and a concave image-side surface S12. The seventh lens element E7 has positive power, and has a convex object-side surface S13 and a concave image-side surface S14. The eighth lens element E8 has negative power, and has a concave object-side surface S15 and a concave image-side surface S16. Filter E9 has an object side S17 and an image side S18. The light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging surface S19.
In the present embodiment, the total effective focal length f of the optical imaging lens is 6.52mm, the distance TT L on the optical axis from the object-side surface S1 of the first lens E1 to the imaging surface S19 is 8.02mm, the half ImgH of the diagonal length of the effective pixel area on the imaging surface S19 is 6.27mm, 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 1.69.
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).
TABLE 17
In embodiment 9, the object side and the image side of any one of the first lens E1 to the eighth lens E8The surfaces are aspheric surfaces. Table 18 below shows the coefficients A of the high-order terms which can be used for the aspherical mirror surfaces S1-S16 in example 94、A6、A8、A10、A12、A14、A16、A18And A20。
| Flour mark | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | 5.6873E-04 | -9.2546E-05 | 1.8830E-04 | -1.0828E-04 | 3.6229E-05 | -7.5636E-06 | 9.6558E-07 | -8.6476E-08 | 0.0000E+00 |
| S2 | -7.6408E-03 | 3.2520E-03 | -7.2007E-04 | 3.9091E-05 | 9.8343E-06 | -1.2508E-06 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S3 | -2.2117E-02 | 6.8569E-03 | 7.5719E-04 | -1.7294E-03 | 7.8260E-04 | -1.6830E-04 | 1.5067E-05 | 0.0000E+00 | 0.0000E+00 |
| S4 | -1.5488E-02 | 8.2047E-03 | -4.8738E-03 | 4.1744E-03 | -2.3225E-03 | 6.4231E-04 | -5.3812E-05 | -4.1618E-06 | 0.0000E+00 |
| S5 | 1.1865E-03 | -2.8774E-03 | 3.6201E-03 | -5.2232E-03 | 5.4804E-03 | -3.3787E-03 | 1.2356E-03 | -2.3803E-04 | 1.8454E-05 |
| S6 | -5.6441E-03 | -5.8853E-04 | -7.8498E-03 | 1.4626E-02 | -1.4652E-02 | 8.9453E-03 | -3.2341E-03 | 6.4318E-04 | -5.4074E-05 |
| S7 | -6.7789E-03 | -9.8298E-03 | 6.0188E-03 | -7.0983E-03 | 5.6869E-03 | -3.2987E-03 | 1.2593E-03 | -2.7865E-04 | 2.6441E-05 |
| S8 | 2.0665E-02 | -8.4486E-02 | 1.0003E-01 | -8.5752E-02 | 5.0511E-02 | -1.9721E-02 | 4.8363E-03 | -6.7332E-04 | 4.0746E-05 |
| S9 | 1.0337E-02 | -9.1030E-02 | 9.9546E-02 | -7.5897E-02 | 4.1049E-02 | -1.4792E-02 | 3.2992E-03 | -4.0476E-04 | 2.0582E-05 |
| S10 | -6.1757E-03 | -3.0220E-02 | 2.5509E-02 | -1.4173E-02 | 5.6997E-03 | -1.5818E-03 | 2.7821E-04 | -2.7234E-05 | 1.1154E-06 |
| S11 | -8.4406E-03 | 4.1769E-03 | -3.0025E-03 | 1.1709E-03 | -3.4350E-04 | 7.1711E-05 | -9.7825E-06 | 7.6354E-07 | -2.5212E-08 |
| S12 | -4.3045E-02 | 1.4859E-02 | -3.7048E-03 | 6.1323E-04 | -6.6153E-05 | 4.9148E-06 | -2.4611E-07 | 6.0662E-09 | 4.8630E-12 |
| S13 | 1.1208E-02 | -1.0345E-02 | 3.0802E-03 | -8.5758E-04 | 1.7087E-04 | -2.1956E-05 | 1.7289E-06 | -7.5036E-08 | 1.3621E-09 |
| S14 | 2.7696E-02 | -1.0041E-02 | 1.2554E-03 | -5.4511E-05 | -7.2230E-06 | 1.4651E-06 | -1.1323E-07 | 4.2236E-09 | -6.2136E-11 |
| S15 | -7.9927E-03 | 4.2652E-04 | 2.4786E-04 | -4.1108E-05 | 3.0273E-06 | -1.2615E-07 | 3.0783E-09 | -4.1205E-11 | 2.3487E-13 |
| S16 | -2.1805E-02 | 3.5075E-03 | -5.0527E-04 | 5.3464E-05 | -3.8203E-06 | 1.7369E-07 | -4.7628E-09 | 7.1568E-11 | -4.5208E-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, an eighth lens E8, a filter E9, and an image forming surface S19.
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 concave 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 concave image-side surface S12. The seventh lens element E7 has positive power, and has a convex object-side surface S13 and a convex image-side surface S14. The eighth lens element E8 has negative power, and has a concave object-side surface S15 and a concave image-side surface S16. Filter E9 has an object side S17 and an image side S18. The light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging surface S19.
In the present embodiment, the total effective focal length f of the optical imaging lens is 6.51mm, the distance TT L on the optical axis from the object-side surface S1 of the first lens E1 to the imaging surface S19 is 8.04mm, the half ImgH of the diagonal length of the effective pixel area on the imaging surface S19 is 6.17mm, 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 1.69.
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).
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 eighth lens E8 are aspheric. Table 20 below shows the high-order coefficient A of each of the aspherical mirror surfaces S1-S16 used in example 104、A6、A8、A10、A12、A14、A16、A18And A20。
| Flour mark | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | 6.8611E-04 | 3.8047E-05 | 9.9092E-05 | -3.8357E-05 | 3.6359E-06 | 1.6474E-06 | -4.6363E-07 | 0.0000E+00 | 0.0000E+00 |
| S2 | -6.4197E-03 | 4.4425E-03 | -2.1630E-03 | 7.1843E-04 | -1.4445E-04 | 1.2421E-05 | 0.0000E+00 | 0.000E+00 | 0.0000E+00 |
| S3 | -2.2904E-02 | 1.0882E-02 | -2.8278E-03 | -5.9839E-05 | 3.5324E-04 | -1.1291E-04 | 1.2694E-05 | 0.0000E+00 | 0.0000E+00 |
| S4 | -1.7878E-02 | 1.1536E-02 | -6.1213E-03 | 3.7900E-03 | -1.8463E-03 | 5.3883E-04 | -6.4657E-05 | 0.0000E+00 | 0.0000E+00 |
| S5 | 3.8113E-04 | -4.3704E-03 | 1.1014E-02 | -1.7375E-02 | 1.7112E-02 | -1.0354E-02 | 3.8103E-03 | -7.7285E-04 | 6.6132E-05 |
| S6 | -5.1168E-03 | -2.1550E-03 | 3.3878E-04 | -2.7667E-04 | 6.5694E-04 | -6.1816E-04 | 3.2695E-04 | -8.0272E-05 | 7.1959E-06 |
| S7 | -8.9151E-03 | -7.9870E-03 | 4.5449E-03 | -4.6717E-03 | 2.0306E-03 | -1.1193E-04 | -3.2176E-04 | 1.4255E-04 | -2.0543E-05 |
| S8 | 1.1213E-02 | -5.8767E-02 | 6.4217E-02 | -5.0482E-02 | 2.6872E-02 | -9.7149E-03 | 2.3289E-03 | -3.3574E-04 | 2.1901E-05 |
| S9 | 2.3023E-03 | -6.3372E-02 | 5.2823E-02 | -2.4184E-02 | 4.3309E-03 | 1.1828E-03 | -7.7066E-04 | 1.4921E-04 | -1.0365E-05 |
| S10 | -5.5251E-03 | -3.0959E-02 | 2.3940E-02 | -1.0988E-02 | 3.1467E-03 | -5.0407E-04 | 2.9124E-05 | 2.5335E-06 | -3.2191E-07 |
| S11 | -8.9166E-03 | 3.0338E-03 | -2.3055E-03 | 1.1659E-03 | -4.0808E-04 | 8.6961E-05 | -1.1001E-05 | 7.7278E-07 | -2.3203E-08 |
| S12 | -4.2844E-02 | 1.6382E-02 | -6.0743E-03 | 2.1158E-03 | -5.5446E-04 | 9.2985E-05 | -9.2064E-06 | 4.8922E-07 | -1.0761E-08 |
| S13 | 4.0118E-03 | -4.6026E-03 | 7.8875E-04 | -2.2592E-04 | 5.6411E-05 | -9.0338E-06 | 8.6186E-07 | -4.3564E-08 | 8.8813E-10 |
| S14 | 2.3933E-02 | -6.2220E-03 | 1.4424E-04 | 1.4072E-04 | -2.9951E-05 | 3.1645E-06 | -1.8978E-07 | 6.0883E-09 | -8.0868E-11 |
| S15 | -9.0522E-03 | 1.2792E-03 | 4.2384E-05 | -1.6748E-05 | 1.3862E-06 | -5.9807E-08 | 1.4803E-09 | -1.9996E-11 | 1.1477E-13 |
| S16 | -2.2247E-02 | 3.6892E-03 | -5.3856E-04 | 5.5632E-05 | -3.8195E-06 | 1.6688E-07 | -4.4194E-09 | 6.4549E-11 | -3.9965E-13 |
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.
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 (27)
1. An optical imaging lens, in order from an object side to an image side along an optical axis, comprising:
a first lens having an optical power;
a second lens having a refractive power, an image-side surface of which is concave;
a third lens having optical power;
a fourth lens having an optical power;
a fifth lens having optical power;
a sixth lens having optical power;
a seventh lens having a positive refractive power, an object-side surface of which is convex; and
an eighth lens element having a negative refractive power, an object-side surface of which is concave;
wherein, the half ImgH of the diagonal length of the effective pixel area on the imaging surface of the optical imaging lens satisfies: imgH is not less than 6.0mm, and
the total effective focal length f of the optical imaging lens and the entrance pupil diameter EPD of the optical imaging lens satisfy:
f/EPD<1.8。
2. the optical imaging lens of claim 1, wherein the total effective focal length f of the optical imaging lens and the effective focal length f1 of the first lens satisfy:
0.7<f/f1<1.2。
3. the optical imaging lens of claim 1, wherein the effective focal length f8 of the eighth lens and the effective focal length f7 of the seventh lens satisfy:
0.4<|f8/f7|<0.8。
4. the optical imaging lens of claim 1, wherein the radius of curvature R16 of the image side surface of the eighth lens and the total effective focal length f of the optical imaging lens satisfy:
0.8<R16/f<1.2。
5. the optical imaging lens according to claim 1, wherein a radius of curvature R4 of an image side surface of the second lens and a combined focal length f123 of the first lens, the second lens and the third lens satisfy:
0.2<R4/f123<0.6。
6. 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 R15 of the object-side surface of the eighth lens satisfy:
0.8<R13/|R15|<1.2。
7. the optical imaging lens of claim 1, wherein the radius of curvature R3 of the object-side surface of the second lens and the radius of curvature R1 of the object-side surface of the first lens satisfy:
0<(R3-R1)/(R3+R1)<0.5。
8. the optical imaging lens of claim 1, wherein the total effective focal length f of the optical imaging lens, the maximum half field angle Semi-FOV of the optical imaging lens, and 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 satisfy:
0.5<f×tan(Semi-FOV)/TTL<0.9。
9. the optical imaging lens according to claim 1, wherein a sum ∑ AT of the distance between any adjacent two lenses of the first to eighth lenses on the optical axis and a sum ∑ CT of the center thicknesses of the first to eighth lenses on the optical axis satisfy:
0.4<∑AT/∑CT<0.9。
10. the optical imaging lens of claim 1, wherein the edge thickness ET3 of the third lens and the center thickness CT3 of the third lens on the optical axis satisfy:
0.4<ET3/CT3<1.0。
11. the optical imaging lens of claim 1, wherein an on-axis distance from an intersection point of an object-side surface of the sixth lens and the optical axis to an effective radius vertex of the object-side surface of the sixth lens SAG61 and an intersection point of an object-side surface of the seventh lens and the optical axis to an effective radius vertex of the object-side surface of the seventh lens SAG71 satisfy:
0.5<SAG61/SAG71<0.9。
12. the optical imaging lens of claim 1, wherein the maximum effective radius DT71 of the object side surface of the seventh lens and the maximum effective radius DT81 of the object side surface of the eighth lens satisfy:
0.5<DT71/DT81<0.8。
13. the optical imaging lens according to claim 1, wherein a center thickness CT6 of a sixth lens on the optical axis, a center thickness CT7 of a seventh lens on the optical axis, and a separation distance T67 of the sixth lens and the seventh lens on the optical axis satisfy:
0.1<CT6/(T67+CT7)<0.6。
14. an optical imaging lens, in order from an object side to an image side along an optical axis, comprising:
a first lens having an optical power;
a second lens having a refractive power, an image-side surface of which is concave;
a third lens having optical power;
a fourth lens having an optical power;
a fifth lens having optical power;
a sixth lens having optical power;
a seventh lens having a positive refractive power, an object-side surface of which is convex; and
an eighth lens element having a negative refractive power, an object-side surface of which is concave;
wherein a curvature radius R16 of an image side surface of the eighth lens and a total effective focal length f of the optical imaging lens satisfy:
0.8<R16/f<1.2。
15. 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≥6.0mm。
16. the optical imaging lens of claim 14, wherein the total effective focal length f of the optical imaging lens and the entrance pupil diameter EPD of the optical imaging lens satisfy:
f/EPD<1.8。
17. the optical imaging lens of claim 14, wherein the total effective focal length f of the optical imaging lens and the effective focal length f1 of the first lens satisfy:
0.7<f/f1<1.2。
18. the optical imaging lens of claim 14, wherein the effective focal length f8 of the eighth lens and the effective focal length f7 of the seventh lens satisfy:
0.4<|f8/f7|<0.8。
19. the optical imaging lens of claim 14, wherein a radius of curvature R4 of the image side surface of the second lens and a combined focal length f123 of the first lens, the second lens and the third lens satisfy:
0.2<R4/f123<0.6。
20. 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 R15 of the object-side surface of the eighth lens satisfy:
0.8<R13/|R15|<1.2。
21. the optical imaging lens of claim 14, wherein the radius of curvature R3 of the object-side surface of the second lens and the radius of curvature R1 of the object-side surface of the first lens satisfy:
0<(R3-R1)/(R3+R1)<0.5。
22. the optical imaging lens of claim 14, wherein the total effective focal length f of the optical imaging lens, the maximum half field angle Semi-FOV of the optical imaging lens, and 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 satisfy:
0.5<f×tan(Semi-FOV)/TTL<0.9。
23. the optical imaging lens according to claim 14, wherein a sum ∑ AT of the distance between any adjacent two lenses of the first to eighth lenses on the optical axis and a sum ∑ CT of the center thicknesses of the first to eighth lenses on the optical axis satisfy:
0.4<∑AT/∑CT<0.9。
24. the optical imaging lens of claim 14, wherein the edge thickness ET3 of the third lens and the center thickness CT3 of the third lens on the optical axis satisfy:
0.4<ET3/CT3<1.0。
25. the optical imaging lens of claim 14, wherein an on-axis distance from an intersection point of an object-side surface of the sixth lens and the optical axis to an effective radius vertex of the object-side surface of the sixth lens SAG61 and an intersection point of an object-side surface of the seventh lens and the optical axis to an effective radius vertex of the object-side surface of the seventh lens SAG71 satisfy:
0.5<SAG61/SAG71<0.9。
26. the optical imaging lens of claim 14, wherein the maximum effective radius DT71 of the object side surface of the seventh lens and the maximum effective radius DT81 of the object side surface of the eighth lens satisfy:
0.5<DT71/DT81<0.8。
27. the optical imaging lens according to claim 14, wherein a center thickness CT6 of a sixth lens on the optical axis, a center thickness CT7 of a seventh lens on the optical axis, and a separation distance T67 of the sixth lens and the seventh lens on the optical axis satisfy:
0.1<CT6/(T67+CT7)<0.6。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921686735.9U CN211043780U (en) | 2019-10-10 | 2019-10-10 | Optical imaging lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921686735.9U CN211043780U (en) | 2019-10-10 | 2019-10-10 | Optical imaging lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211043780U true CN211043780U (en) | 2020-07-17 |
Family
ID=71534100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921686735.9U Active CN211043780U (en) | 2019-10-10 | 2019-10-10 | Optical imaging lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211043780U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6894569B1 (en) * | 2020-09-29 | 2021-06-30 | ジョウシュウシ レイテック オプトロニクス カンパニーリミテッド | Imaging optical lens |
| WO2022110044A1 (en) * | 2020-11-27 | 2022-06-02 | 欧菲光集团股份有限公司 | Optical imaging system, image capturing module, and electronic device |
-
2019
- 2019-10-10 CN CN201921686735.9U patent/CN211043780U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6894569B1 (en) * | 2020-09-29 | 2021-06-30 | ジョウシュウシ レイテック オプトロニクス カンパニーリミテッド | Imaging optical lens |
| WO2022110044A1 (en) * | 2020-11-27 | 2022-06-02 | 欧菲光集团股份有限公司 | Optical imaging system, image capturing module, and electronic device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110531503B (en) | Optical imaging lens | |
| CN110703412B (en) | Optical imaging system | |
| CN109212719B (en) | Optical imaging system | |
| CN107843977B (en) | Optical imaging lens | |
| CN110850557B (en) | Optical imaging lens | |
| CN108089317B (en) | Optical imaging lens | |
| CN110346919B (en) | Optical imaging lens | |
| CN110646921A (en) | Optical imaging lens | |
| CN110632742A (en) | Optical imaging lens | |
| CN210924084U (en) | Optical imaging lens | |
| CN114047607A (en) | Optical imaging lens | |
| CN108279483B (en) | Image pickup lens assembly | |
| CN211293433U (en) | Optical imaging lens | |
| CN211086748U (en) | Optical imaging lens | |
| CN110749977A (en) | Optical imaging lens | |
| CN110609376A (en) | Optical imaging lens | |
| CN110687665A (en) | Image pickup lens assembly | |
| CN112799218A (en) | Optical imaging lens | |
| CN210015278U (en) | Optical imaging lens | |
| CN211043780U (en) | Optical imaging lens | |
| CN111352210A (en) | Imaging lens | |
| CN210720848U (en) | Optical imaging lens | |
| CN211086762U (en) | Image pickup lens assembly | |
| CN210720847U (en) | Optical imaging lens | |
| CN211086745U (en) | Optical imaging system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |