CN111474682A - Optical imaging lens - Google Patents

Optical imaging lens Download PDF

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Publication number
CN111474682A
CN111474682A CN202010469273.6A CN202010469273A CN111474682A CN 111474682 A CN111474682 A CN 111474682A CN 202010469273 A CN202010469273 A CN 202010469273A CN 111474682 A CN111474682 A CN 111474682A
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China
Prior art keywords
lens
optical imaging
optical
imaging lens
optical axis
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CN202010469273.6A
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Chinese (zh)
Inventor
周雨
黄林
戴付建
赵烈烽
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Zhejiang Sunny Optics Co Ltd
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Zhejiang Sunny Optics Co Ltd
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Priority to CN202010469273.6A priority Critical patent/CN111474682A/en
Publication of CN111474682A publication Critical patent/CN111474682A/en
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
    • G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
    • G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration

Abstract

The application discloses an optical imaging lens, which sequentially comprises from an object side to an image side along an optical axis: a first lens having an optical power; a second lens having an optical power; a third lens with negative focal power, wherein the object side surface of the third lens is a convex surface; a fourth lens having an optical power; and a fifth lens with negative focal power, the object side surface of which is convex; half of the Semi-FOV of the maximum field angle of the optical imaging lens satisfies: Semi-FOV is more than or equal to 60 degrees; and the distance T34 between the third lens and the fourth lens on the optical axis and the central thickness CT5 of the fifth lens on the optical axis satisfy: T34/CT5 is more than 1.5 and less than 2.5.

Description

Optical imaging lens
Technical Field
The application relates to the field of optical elements, in particular to an optical imaging lens.
Background
Many people who take pictures are often limited in the field of view of the camera lens when they take large-area scenes, such as large mountains, wide buildings, wide teams in parade, and all indoor displays, so that the camera lens cannot take pictures of large-area scenes. The visual angle of most camera lenses in the market is not enough to meet the requirement of a camera lover for shooting a large-area scene.
Therefore, in order to meet the demands of more photography enthusiasts for photographing large-area scenes, an optical imaging lens which can achieve both high imaging quality and large field angle is urgently needed in the market.
Disclosure of Invention
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 an optical power; a third lens with negative focal power, wherein the object side surface of the third lens is a convex surface; a fourth lens having an optical power; and a fifth lens having a negative refractive power, an object-side surface of which is convex. Half of the Semi-FOV of the maximum field angle of the optical imaging lens may satisfy: Semi-FOV is more than or equal to 60 degrees; and the separation distance T34 between the third lens and the fourth lens on the optical axis and the central thickness CT5 of the fifth lens on the optical axis may satisfy: T34/CT5 is more than 1.5 and less than 2.5.
In one embodiment, the object-side surface of the first lens element to the image-side surface of the fifth lens element has at least one aspherical mirror surface.
In one embodiment, the distance TT L between the effective focal length f3 of the third lens and the object side surface of the first lens and the imaging surface of the optical imaging lens on the optical axis can satisfy-2.5 < f3/TT L < -1.0.
In one embodiment, the radius of curvature R6 of the image-side surface of the third lens and the refractive index N3 of the third lens may satisfy: R6/N3 is more than 1.0mm and less than 2.0 mm.
In one embodiment, the combined focal length f23 of the second lens and the third lens and the total effective focal length f of the optical imaging lens can satisfy: f23/f is more than 1.0 and less than 2.0.
In one embodiment, the distance TT L between the object side surface of the first lens and the imaging surface of the optical imaging lens on the optical axis and the combined focal length f12 of the first lens and the second lens can satisfy 1.5 < TT L/f 12 < 2.5.
In one embodiment, the combined focal length f34 of the third and fourth lenses, the combined focal length f45 of the fourth and fifth lenses, and the combined focal length f123 of the first, second, and third lenses may satisfy: 0.5 < (f34+ f45)/f123 < 2.0.
In one embodiment, the distance SAG32 on the optical axis from the intersection point of the central thickness CT3 of the third lens on the optical axis and the image-side surface of the third lens and the optical axis to the effective radius vertex of the image-side surface of the third lens may satisfy: 1.0 < CT3/SAG32 < 3.5.
In one embodiment, the distance SAG42 on the optical axis from the intersection point of the central thickness CT4 of the fourth lens on the optical axis and the image side surface of the fourth lens and the optical axis to the effective radius vertex of the image side surface of the fourth lens may satisfy: CT4/SAG42 is more than-2.5 and less than or equal to-1.0.
In one embodiment, the radius of curvature R5 of the object side surface of the third lens and the half ImgH of the diagonal length of the effective pixel area on the imaging surface of the optical imaging lens may satisfy: R5/ImgH is more than 0.5 and less than 2.0.
The application further provides an optical imaging lens, which sequentially comprises a first lens with focal power, a second lens with focal power, a third lens with negative focal power, a fourth lens with focal power and a fifth lens with negative focal power from an object side to an image side, wherein the object side of the third lens is convex, the object side of the fifth lens is convex, a half Semi-FOV of the maximum field angle of the optical imaging lens can satisfy that the Semi-FOV is larger than or equal to 60 degrees, and a distance TT L from the object side of the first lens to an imaging surface of the optical imaging lens on the optical axis and a combined focal length f12 of the first lens and the second lens can satisfy that 1.5 is less than TT L/f 12 is less than 2.5.
The optical imaging lens is applicable to portable electronic products, and has at least one of large field angle, miniaturization and good imaging quality.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
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; and
fig. 12A to 12D show an axial 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.
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 five lenses having optical powers, which are a first lens, a second lens, a third lens, a fourth lens, and a fifth lens, respectively. The five lenses are arranged along the optical axis in sequence from the object side to the image side. Any adjacent two lenses of the first lens to the fifth lens can have a spacing distance therebetween.
In an exemplary embodiment, the first lens may have a positive power or a negative power; the second lens may have a positive or negative optical power; the third lens can have negative focal power, and the object side surface of the third lens can be a convex surface; the fourth lens may have a positive power or a negative power; and the fifth lens element may have a negative power and its object-side surface may be convex.
In an exemplary embodiment, an optical imaging lens according to the present application may satisfy: the Semi-FOV is more than or equal to 60 degrees, wherein the Semi-FOV is half of the maximum field angle of the optical imaging lens. The Semi-FOV is more than or equal to 60 degrees, the visual field can be widened, and the realization of a larger clear range is facilitated.
In an exemplary embodiment, an optical imaging lens according to the present application may satisfy: 1.5 < T34/CT5 < 2.5, wherein T34 is the distance between the third lens and the fourth lens on the optical axis, and CT5 is the central thickness of the fifth lens on the optical axis. More specifically, T34 and CT5 further satisfy: 1.6 < T34/CT5 < 2.2. The requirements that T34/CT5 is more than 1.5 and less than 2.5 are met, the processing and assembling characteristics of the optical imaging lens can be ensured, and the problems of front and rear lens interference and the like in the assembling process due to the excessively small gap can be avoided; meanwhile, the optical imaging lens is beneficial to slowing down light deflection, adjusting the field curvature of the optical imaging lens, reducing the sensitivity and further obtaining better imaging quality.
In an exemplary embodiment, the optical imaging lens according to the application can satisfy-2.5 < f3/TT L < -1.0, wherein f3 is an effective focal length of the third lens, and TT L is a distance on an optical axis from an object side surface of the first lens to an imaging surface of the optical imaging lens, more specifically, f3 and TT L further satisfy-2.3 < f3/TT L < -1.4, satisfy-2.5 < f3/TT L < -1.0, which helps to improve convergence ability of the optical lens group to light, adjust a light focusing position, reduce an overall length of the optical imaging lens, and ensure miniaturization characteristics of the optical imaging lens.
In an exemplary embodiment, an optical imaging lens according to the present application may satisfy: 1.0mm < R6/N3 < 2.0mm, wherein R6 is a radius of curvature of an image-side surface of the third lens, and N3 is a refractive index of the third lens. More specifically, R6 and N3 may further satisfy: R6/N3 is more than 1.2mm and less than 1.9 mm. The optical imaging lens can effectively balance the on-axis aberration generated by the optical imaging lens, and the requirement that R6/N3 is more than 1.0mm and less than 2.0mm is met.
In an exemplary embodiment, an optical imaging lens according to the present application may satisfy: 1.0 < f23/f < 2.0, wherein f23 is the combined focal length of the second lens and the third lens, and f is the total effective focal length of the optical imaging lens. More specifically, f23 and f further satisfy: f23/f is more than 1.3 and less than 1.9. Satisfying 1.0 < f23/f < 2.0, beneficial to improving the field angle of the optical imaging lens.
In an exemplary embodiment, the optical imaging lens according to the application can satisfy 1.5 < TT L/f 12 < 2.5, wherein TT L is the distance between the object side surface of the first lens and the imaging surface of the optical imaging lens on the optical axis, and f12 is the combined focal length of the first lens and the second lens, more specifically, TT L and f12 further can satisfy 1.6 < TT L/f 12 < 2.2, and satisfy 1.5 < TT L/f 12 < 2.5, so that the main ray angle of the optical imaging lens can be adjusted, the relative brightness of the optical imaging lens can be effectively improved, and the image plane definition can be improved.
In an exemplary embodiment, an optical imaging lens according to the present application may satisfy: 0.5 < (f34+ f45)/f123 < 2.0, wherein f34 is a combined focal length of the third lens and the fourth lens, f45 is a combined focal length of the fourth lens and the fifth lens, and f123 is a combined focal length of the first lens, the second lens, and the third lens. More specifically, f34, f45, and f123 may further satisfy: 0.9 < (f34+ f45)/f123 < 1.9. Satisfies 0.5 < (f34+ f45)/f123 < 2.0, and can effectively improve the aberration of the optical imaging lens.
In an exemplary embodiment, an optical imaging lens according to the present application may satisfy: 1.0 < CT3/SAG32 < 3.5, wherein CT3 is the central thickness of the third lens on the optical axis, and SAG32 is the distance on the optical axis from the intersection point of the image side surface of the third lens and the optical axis to the effective radius vertex of the image side surface of the third lens. The requirement that CT3/SAG32 is more than 1.0 and less than 3.5 is met, the third lens can be prevented from being bent too much, the processing difficulty is reduced, and meanwhile, the optical imaging lens has the capability of balancing chromatic aberration and distortion well.
In an exemplary embodiment, an optical imaging lens according to the present application may satisfy: 2.5 < CT4/SAG42 ≦ 1.0, wherein CT4 is the central thickness of the fourth lens on the optical axis, and SAG42 is the distance on the optical axis from the intersection of the image-side surface of the fourth lens and the optical axis to the vertex of the effective radius of the image-side surface of the fourth lens. More specifically, CT4 and SAG42 further satisfy: CT4/SAG42 is more than-2.4 and less than or equal to-1.0. The requirement that CT4/SAG42 is more than-2.5 and less than or equal to-1.0 is met, the fourth lens can be prevented from being bent too much, the processing difficulty is reduced, and meanwhile, the optical imaging lens has the capability of balancing chromatic aberration and distortion well.
In an exemplary embodiment, an optical imaging lens according to the present application may satisfy: 0.5 < R5/ImgH < 2.0, where R5 is a radius of curvature of an object side surface of the third lens, and ImgH is a half of a diagonal length of an effective pixel region on an imaging surface of the optical imaging lens. More specifically, R5 and ImgH further may satisfy: R5/ImgH is more than 0.8 and less than 2.0. R5/ImgH is more than 0.5 and less than 2.0, which is beneficial to realizing larger imaging height, miniaturization of the lens and improvement of imaging quality.
In an exemplary embodiment, an optical imaging lens according to the present application further includes a stop disposed between the first lens and the second lens. Optionally, the optical imaging lens may further include a filter for correcting color deviation and/or a protective glass for protecting a photosensitive element on the imaging surface. The application provides an optical imaging lens with characteristics of miniaturization, super wide angle, high imaging quality and the like. Optionally, the optical imaging lens proposed in the present application may be a wide-angle lens, a focal length of which may be smaller than a standard lens, and a viewing angle of which may be larger than the standard lens; and the focal length can be larger than the fisheye lens, and the visual angle can be smaller than the fisheye lens. The optical imaging lens according to the above-described embodiment of the present application may employ a plurality of lenses, for example, the above five lenses. By reasonably distributing the focal power and the surface shape of each lens, the central thickness of each lens, the on-axis distance between each lens and the like, incident light can be effectively converged, the optical total length of the imaging lens is reduced, the machinability of the imaging lens is improved, and the optical imaging lens is more beneficial to production and processing.
In the embodiment of the present application, at least one of the mirror surfaces of each lens is an aspherical mirror surface, that is, at least one of the object-side surface of the first lens to the image-side surface of the fifth lens is an aspherical mirror surface. The aspheric lens is characterized in that: the curvature varies continuously from the center of the lens to the periphery of the lens. Unlike a spherical lens having a constant curvature from the center of the lens to the periphery of the lens, an aspherical lens has 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, and the fifth lens is an aspheric mirror surface. Optionally, each of the first, second, third, fourth, and fifth lenses has an object-side surface and an image-side surface that are aspheric mirror surfaces.
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 five lenses are exemplified in the embodiment, the optical imaging lens is not limited to include five lenses. The optical imaging lens may also include other numbers of lenses, if desired.
Specific examples of an optical imaging lens applicable to the above-described embodiments are further described below with reference to the drawings.
Example 1
An optical imaging lens according to embodiment 1 of the present application is described below with reference to fig. 1 to 2D. Fig. 1 shows a schematic structural diagram of an optical imaging lens according to embodiment 1 of the present application.
As shown in fig. 1, the optical imaging lens includes, in order from an object side to an image side: a first lens E1, a stop STO, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a filter E6, and an image forming surface S13.
The first lens element E1 has positive power, and has a concave object-side surface S1 and a convex image-side surface S2. The second lens element E2 has positive power, and has a convex object-side surface S3 and a convex image-side surface S4. The third lens element E3 has negative power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has positive power, and has a 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. Filter E6 has an object side S11 and an image side S12. The light from the object sequentially passes through the respective surfaces S1 to S12 and is finally imaged on the imaging surface S13.
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).
Figure BDA0002513757590000061
TABLE 1
In this example, the total effective focal length f of the optical imaging lens is 2.33mm, the total length TT L of the optical imaging lens (i.e., the distance on the optical axis from the object-side surface S1 of the first lens E1 to the imaging surface S13 of the optical imaging lens) is 5.67mm, the half ImgH of the diagonal length of the effective pixel region on the imaging surface S13 of the optical imaging lens is 3.63mm, the half Semi-FOV of the maximum angle of view of the optical imaging lens is 60.1 °, and the aperture value Fno of the optical imaging lens is 2.28.
In embodiment 1, the object-side surface and the image-side surface of any one of the first lens E1 to the fifth lens E5 are aspheric surfaces, and the surface shape x of each aspheric lens can be defined by, but is not limited to, the following aspheric surface formula:
Figure BDA0002513757590000071
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. The high-order term coefficients A that can be used for the aspherical mirror surfaces S1 through S10 in example 1 are shown in tables 2-1 and 2-2 below4、A6、A8、A10、A12、A14、A16、A18、A20、A22、A24、A26、A28And A30。
Flour mark A4 A6 A8 A10 A12 A14 A16
S1 2.5772E-02 1.6521E-01 -5.5959E-01 1.1308E+00 -1.5461E+00 1.4949E+00 -1.0435E+00
S2 4.2459E-01 -4.4713E+00 3.6528E+01 -1.9181E+02 6.8288E+02 -1.7099E+03 3.0789E+03
S3 -1.5123E-01 7.0878E+00 -2.4423E+02 5.0515E+03 -6.8348E+04 6.3543E+05 -4.1878E+06
S4 -4.0196E-01 8.7749E+00 -8.7420E+01 5.2704E+02 -2.1189E+03 5.9371E+03 -1.1827E+04
S5 -3.2171E-01 4.7402E+00 -3.7841E+01 1.8047E+02 -5.6513E+02 1.2046E+03 -1.7597E+03
S6 -2.4900E-01 1.2810E+00 -4.3265E+00 9.1290E+00 -1.1383E+01 5.3038E+00 7.8274E+00
S7 -3.2533E-01 -3.7846E-01 7.0855E+00 -3.1976E+01 8.6069E+01 -1.5703E+02 2.0336E+02
S8 7.0673E-02 1.0866E+00 -7.3605E+00 2.3783E+01 -4.7146E+01 6.2514E+01 -5.7967E+01
S9 -4.8281E-01 -3.2596E-01 2.4201E+00 -4.4308E+00 4.4981E+00 -2.9299E+00 1.3074E+00
S10 -9.2013E-01 8.2488E-01 -1.9343E-01 -4.9977E-01 7.1538E-01 -5.0846E-01 2.3308E-01
TABLE 2-1
Flour mark A18 A20 A22 A24 A26 A28 A30
S1 5.2942E-01 -1.9421E-01 5.0575E-02 -9.0172E-03 1.0295E-03 -6.5939E-05 1.7003E-06
S2 -4.0309E+03 3.8385E+03 -2.6293E+03 1.2612E+03 -4.0187E+02 7.6367E+01 -6.5466E+00
S3 1.9922E+07 -6.8841E+07 1.7171E+08 -3.0205E+08 3.5632E+08 -2.5343E+08 8.2238E+07
S4 1.6810E+04 -1.6840E+04 1.1504E+04 -4.9913E+03 1.1557E+03 -5.8907E+01 -1.8571E+01
S5 1.7195E+03 -1.0246E+03 2.3611E+02 1.3586E+02 -1.3208E+02 4.4013E+01 -5.5940E+00
S6 -1.8150E+01 1.8352E+01 -1.1429E+01 4.6258E+00 -1.1908E+00 1.7771E-01 -1.1728E-02
S7 -1.9040E+02 1.2923E+02 -6.2929E+01 2.1409E+01 -4.8274E+00 6.4780E-01 -3.9140E-02
S8 3.8444E+01 -1.8360E+01 6.2667E+00 -1.4919E+00 2.3539E-01 -2.2124E-02 9.3792E-04
S9 -4.1813E-01 1.0049E-01 -1.9123E-02 2.9558E-03 -3.5069E-04 2.7202E-05 -9.8839E-07
S10 -7.3914E-02 1.6587E-02 -2.6314E-03 2.8883E-04 -2.0871E-05 8.9303E-07 -1.7138E-08
Tables 2 to 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. In this embodiment and the following embodiments, descriptions of parts similar to those of embodiment 1 will be omitted for the sake of brevity. Fig. 3 shows a schematic structural diagram of an optical imaging lens according to embodiment 2 of the present application.
As shown in fig. 3, the optical imaging lens includes, in order from an object side to an image side: a first lens E1, a stop STO, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a filter E6, and an image forming surface S13.
The first lens element E1 has negative power, and has a convex object-side surface S1 and a concave image-side surface S2. The second lens element E2 has positive power, and has a convex object-side surface S3 and a convex image-side surface S4. The third lens element E3 has negative power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has positive power, and has a 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. Filter E6 has an object side S11 and an image side S12. The light from the object sequentially passes through the respective surfaces S1 to S12 and is finally imaged on the imaging surface S13.
In this example, the total effective focal length f of the optical imaging lens is 1.90mm, the total length TT L of the optical imaging lens is 4.63mm, the half ImgH of the diagonal length of the effective pixel area on the imaging plane S13 of the optical imaging lens is 3.63mm, the half Semi-FOV of the maximum field angle of the optical imaging lens is 60.5 °, and the aperture value Fno of the optical imaging lens is 2.28.
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). Tables 4-1, 4-2 show the high-order term coefficients that can be used for each aspherical mirror surface in example 2, wherein each aspherical mirror surface type can be defined by the formula (1) given in example 1 above.
Figure BDA0002513757590000081
Figure BDA0002513757590000091
TABLE 3
Flour mark A4 A6 A8 A10 A12 A14 A16
S1 1.2297E-01 -4.5896E-02 8.7505E-02 -3.4113E-01 8.2257E-01 -1.1778E+00 1.0777E+00
S2 4.2944E-01 -4.4815E+00 4.9881E+01 -3.5688E+02 1.7168E+03 -5.7796E+03 1.3967E+04
S3 -3.8439E-01 2.1978E+01 -8.2651E+02 1.9400E+04 -3.0392E+05 3.3022E+06 -2.5472E+07
S4 3.6037E-01 -3.6907E+00 2.3826E+01 -1.1463E+02 4.1130E+02 -1.0726E+03 2.0214E+03
S5 1.0591E-01 -1.1710E+00 5.4563E+00 -2.1490E+01 6.8003E+01 -1.5862E+02 2.6511E+02
S6 -2.0753E-01 1.1416E+00 -4.7424E+00 1.2655E+01 -2.2495E+01 2.7639E+01 -2.3963E+01
S7 -4.5467E-01 1.2384E+00 -1.1674E+00 -5.5271E+00 2.4142E+01 -4.7212E+01 5.7271E+01
S8 9.5520E-02 4.3842E-01 -3.0376E+00 8.8753E+00 -1.6295E+01 1.9903E+01 -1.6527E+01
S9 -3.2614E-01 4.7406E-01 -1.1504E+00 1.2689E+00 -5.6853E-01 -6.8957E-02 2.1202E-01
S10 -6.3307E-01 3.7678E-01 -1.8969E-01 9.2803E-02 -3.8790E-02 1.2074E-02 -2.6887E-03
TABLE 4-1
Flour mark A18 A20 A22 A24 A26 A28 A30
S1 -6.5510E-01 2.6927E-01 -7.5026E-02 1.3953E-02 -1.6582E-03 1.1391E-04 -3.4416E-06
S2 -2.4540E+04 3.1388E+04 -2.8910E+04 1.8666E+04 -8.0107E+03 2.0507E+03 -2.3679E+02
S3 1.4114E+08 -5.6245E+08 1.5949E+09 -3.1351E+09 4.0545E+09 -3.0990E+09 1.0596E+09
S4 -2.8041E+03 2.9726E+03 -2.5085E+03 1.6886E+03 -8.4086E+02 2.6421E+02 -3.7962E+01
S5 -3.1678E+02 2.7028E+02 -1.6308E+02 6.7901E+01 -1.8548E+01 2.9902E+00 -2.1554E-01
S6 1.4751E+01 -6.4110E+00 1.9309E+00 -3.8815E-01 4.8472E-02 -3.2409E-03 7.8065E-05
S7 -4.6952E+01 2.6781E+01 -1.0651E+01 2.8955E+00 -5.1270E-01 5.3246E-02 -2.4594E-03
S8 9.5007E+00 -3.8187E+00 1.0699E+00 -2.0474E-01 2.5503E-02 -1.8633E-03 6.0570E-05
S9 -1.1814E-01 3.6695E-02 -7.2499E-03 9.3356E-04 -7.6180E-05 3.5866E-06 -7.4340E-08
S10 4.2719E-04 -4.8392E-05 3.8701E-06 -2.1305E-07 7.6696E-09 -1.6232E-10 1.5299E-12
TABLE 4-2
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 includes, in order from an object side to an image side: a first lens E1, a stop STO, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a filter E6, and an image forming surface S13.
The first lens element E1 has negative power, and has a concave object-side surface S1 and a convex image-side surface S2. The second lens element E2 has positive power, and has a convex object-side surface S3 and a convex image-side surface S4. The third lens element E3 has negative power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has positive power, and has a 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. Filter E6 has an object side S11 and an image side S12. The light from the object sequentially passes through the respective surfaces S1 to S12 and is finally imaged on the imaging surface S13.
In this example, the total effective focal length f of the optical imaging lens is 2.12mm, the total length TT L of the optical imaging lens is 5.76mm, the half ImgH of the diagonal length of the effective pixel area on the imaging plane S13 of the optical imaging lens is 3.63mm, the half Semi-FOV of the maximum field angle of the optical imaging lens is 61.5 °, and the aperture value Fno of the optical imaging lens is 2.28.
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). Tables 6-1, 6-2 show the high-order term coefficients that can be used for each aspherical mirror surface in example 3, wherein each aspherical mirror surface type can be defined by the formula (1) given in example 1 above.
Figure BDA0002513757590000101
TABLE 5
Figure BDA0002513757590000102
Figure BDA0002513757590000111
TABLE 6-1
Flour mark A18 A20 A22 A24 A26 A28 A30
S1 4.5822E-01 -2.2987E-01 7.9333E-02 -1.8586E-02 2.8260E-03 -2.5163E-04 9.9604E-06
S2 4.2617E+02 -4.4039E+02 3.2179E+02 -1.6207E+02 5.3409E+01 -1.0342E+01 8.8995E-01
S3 5.7861E+07 -2.0863E+08 5.3637E+08 -9.5871E+08 1.1316E+09 -7.9279E+08 2.4960E+08
S4 -5.2790E+04 8.0495E+04 -8.6711E+04 6.4601E+04 -3.1682E+04 9.2023E+03 -1.1993E+03
S5 -1.9601E+03 2.6721E+03 -2.4186E+03 1.4642E+03 -5.7177E+02 1.3049E+02 -1.3240E+01
S6 -1.6556E+01 1.7126E+01 -1.0677E+01 4.3029E+00 -1.1013E+00 1.6338E-01 -1.0717E-02
S7 -1.4643E+02 1.0607E+02 -5.4281E+01 1.9181E+01 -4.4520E+00 6.1067E-01 -3.7506E-02
S8 -2.2436E+01 1.0925E+01 -3.8220E+00 9.3565E-01 -1.5197E-01 1.4693E-02 -6.3918E-04
S9 5.5933E-01 -1.7761E-01 3.9952E-02 -6.2272E-03 6.4029E-04 -3.9093E-05 1.0740E-06
S10 -2.6778E-02 5.8621E-03 -9.0595E-04 9.6773E-05 -6.7968E-06 2.8224E-07 -5.2471E-09
TABLE 6-2
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 includes, in order from an object side to an image side: a first lens E1, a stop STO, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a filter E6, and an image forming surface S13.
The first lens element E1 has negative power, and has a concave object-side surface S1 and a concave image-side surface S2. The second lens element E2 has positive power, and has a concave object-side surface S3 and a convex image-side surface S4. The third lens element E3 has negative power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has positive power, and has a 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. Filter E6 has an object side S11 and an image side S12. The light from the object sequentially passes through the respective surfaces S1 to S12 and is finally imaged on the imaging surface S13.
In this example, the total effective focal length f of the optical imaging lens is 1.94mm, the total length TT L of the optical imaging lens is 5.75mm, the half ImgH of the diagonal length of the effective pixel area on the imaging plane S13 of the optical imaging lens is 3.63mm, the half Semi-FOV of the maximum field angle of the optical imaging lens is 61.2 °, and the aperture value Fno of the optical imaging lens is 2.28.
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). Tables 8-1, 8-2 show the high-order term coefficients that can be used for each aspherical mirror surface in example 4, wherein each aspherical mirror surface type can be defined by the formula (1) given in example 1 above.
Figure BDA0002513757590000121
TABLE 7
Flour mark A4 A6 A8 A10 A12 A14 A16
S1 2.9571E-01 -6.5305E-01 1.5726E+00 -2.7297E+00 3.1678E+00 -2.2146E+00 5.2994E-01
S2 3.1915E-01 9.5207E-01 -1.9950E+01 1.7545E+02 -9.6640E+02 3.6328E+03 -9.6475E+03
S3 -1.2825E-01 6.9858E+00 -3.3478E+02 8.4677E+03 -1.3330E+05 1.3991E+06 -1.0149E+07
S4 -1.0467E-01 -1.5668E+00 1.6458E+01 -9.1831E+01 3.3124E+02 -7.0774E+02 4.7065E+02
S5 3.5682E-02 -1.0491E+00 1.9525E+00 4.0627E+00 -1.7700E+01 -1.3156E+01 2.0677E+02
S6 -3.4179E-02 -4.4654E-03 -1.9901E+00 1.1336E+01 -3.1780E+01 5.5481E+01 -6.3907E+01
S7 -4.4521E-02 4.5843E-01 -1.6169E+00 3.5988E+00 -5.5831E+00 6.1694E+00 -4.9012E+00
S8 4.5489E-01 -2.0401E+00 6.4632E+00 -1.3341E+01 1.8561E+01 -1.8019E+01 1.2490E+01
S9 -1.0244E-01 -3.6513E-01 1.0684E+00 -1.8401E+00 2.0450E+00 -1.5263E+00 7.9155E-01
S10 -4.3861E-01 2.5161E-01 -1.8487E-01 1.6367E-01 -1.1954E-01 6.2756E-02 -2.3292E-02
TABLE 8-1
Flour mark A18 A20 A22 A24 A26 A28 A30
S1 6.2625E-01 -8.1044E-01 4.8840E-01 -1.8245E-01 4.3213E-02 -5.9834E-03 3.6981E-04
S2 1.8393E+04 -2.5259E+04 2.4767E+04 -1.6911E+04 7.6385E+03 -2.0519E+03 2.4828E+02
S3 5.1716E+07 -1.8526E+08 4.5938E+08 -7.5919E+08 7.7378E+08 -4.1033E+08 6.8169E+07
S4 1.9485E+03 -6.8832E+03 1.1171E+04 -1.0824E+04 6.3942E+03 -2.1316E+03 3.0815E+02
S5 -6.0256E+02 9.8208E+02 -1.0237E+03 6.9881E+02 -3.0331E+02 7.6084E+01 -8.4036E+00
S6 4.7725E+01 -2.0158E+01 1.2256E+00 3.7269E+00 -2.1498E+00 5.3237E-01 -5.2447E-02
S7 2.8148E+00 -1.1679E+00 3.4644E-01 -7.1628E-02 9.8057E-03 -7.9910E-04 2.9364E-05
S8 -6.2556E+00 2.2678E+00 -5.8921E-01 1.0695E-01 -1.2877E-02 9.2423E-04 -2.9929E-05
S9 -2.9108E-01 7.6422E-02 -1.4229E-02 1.8350E-03 -1.5584E-04 7.8398E-06 -1.7696E-07
S10 6.1426E-03 -1.1533E-03 1.5290E-04 -1.3974E-05 8.3723E-07 -2.9583E-08 4.6712E-10
TABLE 8-2
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 includes, in order from an object side to an image side: a first lens E1, a stop STO, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a filter E6, and an image forming surface S13.
The first lens element E1 has negative power, and has a concave object-side surface S1 and a concave image-side surface S2. The second lens element E2 has positive power, and has a convex object-side surface S3 and a convex image-side surface S4. The third lens element E3 has negative power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has positive power, and has a convex object-side surface S7 and a convex image-side surface S8. The fifth lens element E5 has negative power, and has a convex object-side surface S9 and a concave image-side surface S10. Filter E6 has an object side S11 and an image side S12. The light from the object sequentially passes through the respective surfaces S1 to S12 and is finally imaged on the imaging surface S13.
In this example, the total effective focal length f of the optical imaging lens is 2.24mm, the total length TT L of the optical imaging lens is 6.10mm, the half ImgH of the diagonal length of the effective pixel area on the imaging plane S13 of the optical imaging lens is 3.63mm, the half Semi-FOV of the maximum field angle of the optical imaging lens is 61.0 °, and the aperture value Fno of the optical imaging lens is 2.28.
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). Tables 10-1, 10-2 show the high-order term coefficients that can be used for each aspherical mirror surface in example 5, wherein each aspherical mirror surface type can be defined by the formula (1) given in example 1 above.
Figure BDA0002513757590000141
TABLE 9
Flour mark A4 A6 A8 A10 A12 A14 A16
S1 2.5962E-01 -6.5407E-01 2.6267E+00 -8.1779E+00 1.8072E+01 -2.8505E+01 3.2526E+01
S2 3.7980E-01 -1.2519E+00 9.3939E+00 -4.6720E+01 1.2390E+02 -6.8317E+00 -1.2414E+03
S3 -6.0734E-02 3.6275E+00 -1.1653E+02 2.1865E+03 -2.6880E+04 2.2830E+05 -1.3831E+06
S4 -4.9609E-02 -3.2616E+00 4.5641E+01 -3.6472E+02 1.9657E+03 -7.4843E+03 2.0577E+04
S5 2.9341E-02 -2.1315E+00 1.7403E+01 -9.1389E+01 3.3775E+02 -8.9668E+02 1.7259E+03
S6 -4.2994E-02 -6.8142E-01 4.1626E+00 -1.5393E+01 4.0992E+01 -8.0060E+01 1.1480E+02
S7 7.1500E-02 -6.5782E-02 -2.2489E-01 8.2967E-01 -1.3973E+00 1.4899E+00 -1.0904E+00
S8 2.8404E-01 -7.4870E-01 1.6101E+00 -2.6098E+00 3.0748E+00 -2.6066E+00 1.5941E+00
S9 -7.7627E-02 -2.7045E-01 -6.8988E-02 1.0359E+00 -1.8346E+00 1.8175E+00 -1.1838E+00
S10 -4.6085E-01 4.1727E-02 3.1940E-01 -3.9942E-01 2.7063E-01 -1.2102E-01 3.7946E-02
TABLE 10-1
Figure BDA0002513757590000142
Figure BDA0002513757590000151
TABLE 10-2
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 includes, in order from an object side to an image side: a first lens E1, a stop STO, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a filter E6, and an image forming surface S13.
The first lens element E1 has positive power, and has a concave object-side surface S1 and a convex image-side surface S2. The second lens element E2 has positive power, and has a convex object-side surface S3 and a convex image-side surface S4. The third lens element E3 has negative power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has positive power, and has a 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. Filter E6 has an object side S11 and an image side S12. The light from the object sequentially passes through the respective surfaces S1 to S12 and is finally imaged on the imaging surface S13.
In this example, the total effective focal length f of the optical imaging lens is 2.10mm, the total length TT L of the optical imaging lens is 5.29mm, the half ImgH of the diagonal length of the effective pixel area on the imaging plane S13 of the optical imaging lens is 3.63mm, the half Semi-FOV of the maximum field angle of the optical imaging lens is 63.0 °, and the aperture value Fno of the optical imaging lens is 2.28.
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). Tables 12-1, 12-2 show the high-order term coefficients that can be used for each aspherical mirror surface in example 6, wherein each aspherical mirror surface type can be defined by the formula (1) given in example 1 above.
Figure BDA0002513757590000152
Figure BDA0002513757590000161
TABLE 11
Flour mark A4 A6 A8 A10 A12 A14 A16
S1 3.7124E-02 1.0760E-01 -5.0533E-01 1.2857E+00 -2.1421E+00 2.4746E+00 -2.0378E+00
S2 2.0518E-01 -9.4157E-01 5.9827E+00 -2.6737E+01 8.2722E+01 -1.8140E+02 2.8715E+02
S3 -5.1230E-01 3.3493E+01 -1.3150E+03 3.2215E+04 -5.2625E+05 5.9672E+06 -4.8137E+07
S4 1.7238E-01 -1.6240E+00 1.9002E+01 -1.7044E+02 9.7396E+02 -3.5898E+03 8.6894E+03
S5 -1.3023E-01 1.6329E+00 -1.1758E+01 4.6895E+01 -1.1967E+02 2.0884E+02 -2.6599E+02
S6 -3.0925E-01 1.8121E+00 -6.5973E+00 1.4983E+01 -2.1237E+01 1.6188E+01 5.7490E-01
S7 -4.7698E-01 1.0327E+00 -9.9100E-01 -2.0380E+00 1.2134E+01 -3.0751E+01 5.0175E+01
S8 3.0519E-02 8.5846E-01 -4.5212E+00 1.2482E+01 -2.2062E+01 2.6575E+01 -2.2420E+01
S9 -6.6589E-01 1.0593E+00 -2.4525E+00 5.2915E+00 -8.2830E+00 8.9982E+00 -6.8461E+00
S10 -7.9703E-01 3.8497E-01 5.5121E-01 -1.3782E+00 1.4842E+00 -1.0027E+00 4.6401E-01
TABLE 12-1
Flour mark A18 A20 A22 A24 A26 A28 A30
S1 1.2111E+00 -5.1976E-01 1.5927E-01 -3.3925E-02 4.7646E-03 -3.9621E-04 1.4761E-05
S2 -3.3110E+02 2.7787E+02 -1.6767E+02 7.0759E+01 -1.9799E+01 3.2958E+00 -2.4682E-01
S3 2.7989E+08 -1.1758E+09 3.5355E+09 -7.4222E+09 1.0337E+10 -8.5886E+09 3.2261E+09
S4 -1.3585E+04 1.2403E+04 -3.5161E+03 -5.5767E+03 7.2556E+03 -3.5866E+03 6.8431E+02
S5 2.7488E+02 -2.6135E+02 2.2931E+02 -1.6062E+02 7.6703E+01 -2.1429E+01 2.6178E+00
S6 -1.6494E+01 2.0175E+01 -1.3584E+01 5.7545E+00 -1.5292E+00 2.3383E-01 -1.5737E-02
S7 -5.6618E+01 4.4989E+01 -2.5089E+01 9.6028E+00 -2.4006E+00 3.5279E-01 -2.3101E-02
S8 1.3373E+01 -5.6117E+00 1.6235E+00 -3.1049E-01 3.6115E-02 -2.1238E-03 3.4568E-05
S9 3.6919E+00 -1.4171E+00 3.8437E-01 -7.1973E-02 8.8500E-03 -6.4294E-04 2.0908E-05
S10 -1.5205E-01 3.5638E-02 -5.9382E-03 6.8680E-04 -5.2400E-05 2.3709E-06 -4.8172E-08
Table 12-2 fig. 12A shows a chromatic aberration curve on the axis of the optical imaging lens of embodiment 6, which indicates that light rays of different wavelengths deviate from the convergent focus 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.
In summary, examples 1 to 6 each satisfy the relationship shown in table 13.
Conditions/examples 1 2 3 4 5 6
T34/CT5 2.04 1.80 1.71 2.14 1.82 2.09
f3/TTL -1.45 -1.73 -1.46 -2.24 -1.70 -1.82
R6/N3(mm) 1.83 1.26 1.73 1.32 1.36 1.62
f23/f 1.53 1.83 1.68 1.71 1.36 1.69
TTL/f12 2.15 1.74 2.04 1.64 1.97 1.99
(f34+f45)/f123 1.73 1.18 1.23 0.97 1.87 1.47
CT3/SAG32 3.48 1.07 3.09 1.65 1.74 2.38
CT4/SAG42 -1.04 -1.03 -1.01 -1.32 -2.28 -1.03
R5/ImgH 1.97 1.00 1.74 0.86 0.99 1.34
Watch 13
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.
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 those skilled in the art that the scope of the invention herein disclosed is not limited to the particular combination of features described above, but also encompasses other arrangements formed by any combination of the above 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 (10)

1. The optical imaging lens assembly, in order from an object side to an image side along an optical axis, comprises:
a first lens having an optical power;
a second lens having an optical power;
a third lens with negative focal power, wherein the object side surface of the third lens is a convex surface;
a fourth lens having an optical power; and
a fifth lens element having a negative refractive power, the object-side surface of which is convex;
half of the Semi-FOV of the maximum field angle of the optical imaging lens satisfies: Semi-FOV is more than or equal to 60 degrees; and
the separation distance T34 between the third lens and the fourth lens on the optical axis and the central thickness CT5 of the fifth lens on the optical axis satisfy: T34/CT5 is more than 1.5 and less than 2.5.
2. The optical imaging lens of claim 1, wherein the effective focal length f3 of the third 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-2.5 < f3/TT L < -1.0.
3. The optical imaging lens of claim 1, wherein the radius of curvature R6 of the image side surface of the third lens and the refractive index N3 of the third lens satisfy: R6/N3 is more than 1.0mm and less than 2.0 mm.
4. The optical imaging lens of claim 1, wherein a combined focal length f23 of the second and third lenses and a total effective focal length f of the optical imaging lens satisfy: f23/f is more than 1.0 and less than 2.0.
5. The optical imaging lens of claim 1, wherein a distance TT L on the optical axis from an object side surface of the first lens to an imaging surface of the optical imaging lens and a combined focal length f12 of the first lens and the second lens satisfy 1.5 < TT L/f 12 < 2.5.
6. The optical imaging lens of claim 1, wherein a combined focal length f34 of the third and fourth lenses, a combined focal length f45 of the fourth and fifth lenses, and a combined focal length f123 of the first, second, and third lenses satisfy: 0.5 < (f34+ f45)/f123 < 2.0.
7. The optical imaging lens of claim 1, wherein a distance SAG32 on the optical axis from an intersection point of a center thickness CT3 of the third lens on the optical axis with the image side surface of the third lens and the optical axis to an effective radius vertex of the image side surface of the third lens satisfies: 1.0 < CT3/SAG32 < 3.5.
8. The optical imaging lens of claim 1, wherein a distance SAG42 from an intersection point of a center thickness CT4 of the fourth lens on the optical axis with an image side surface of the fourth lens and the optical axis to an effective radius vertex of the image side surface of the fourth lens on the optical axis satisfies: CT4/SAG42 is more than-2.5 and less than or equal to-1.0.
9. The optical imaging lens according to claim 1, wherein a radius of curvature R5 of the object side surface of the third lens and a half ImgH of a diagonal length of an effective pixel area on an imaging surface of the optical imaging lens satisfy: R5/ImgH is more than 0.5 and less than 2.0.
10. The optical imaging lens assembly, in order from an object side to an image side along an optical axis, comprises:
a first lens having an optical power;
a second lens having an optical power;
a third lens with negative focal power, wherein the object side surface of the third lens is a convex surface;
a fourth lens having an optical power; and
a fifth lens element having a negative refractive power, the object-side surface of which is convex;
half of the Semi-FOV of the maximum field angle of the optical imaging lens satisfies: Semi-FOV is more than or equal to 60 degrees; and
the distance TT L between the object side surface of the first lens and the imaging surface of the optical imaging lens on the optical axis and the combined focal length f12 of the first lens and the second lens meet the condition that 1.5 is less than TT L/f 12 is less than 2.5.
CN202010469273.6A 2020-05-28 2020-05-28 Optical imaging lens Pending CN111474682A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112684590A (en) * 2021-01-20 2021-04-20 浙江舜宇光学有限公司 Optical imaging lens
CN113238338A (en) * 2021-03-31 2021-08-10 江西联益光学有限公司 Optical lens and imaging apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112684590A (en) * 2021-01-20 2021-04-20 浙江舜宇光学有限公司 Optical imaging lens
CN113238338A (en) * 2021-03-31 2021-08-10 江西联益光学有限公司 Optical lens and imaging apparatus
CN113238338B (en) * 2021-03-31 2024-02-20 江西联益光学有限公司 Optical lens and imaging apparatus

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