CN111158110B - Optical imaging lens - Google Patents
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- CN111158110B CN111158110B CN202010100679.7A CN202010100679A CN111158110B CN 111158110 B CN111158110 B CN 111158110B CN 202010100679 A CN202010100679 A CN 202010100679A CN 111158110 B CN111158110 B CN 111158110B
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- 238000012634 optical imaging Methods 0.000 title claims abstract description 220
- 230000003287 optical effect Effects 0.000 claims abstract description 66
- 238000003384 imaging method Methods 0.000 claims description 72
- 210000001747 pupil Anatomy 0.000 claims description 3
- 230000004075 alteration Effects 0.000 description 46
- 201000009310 astigmatism Diseases 0.000 description 18
- 238000010586 diagram Methods 0.000 description 12
- 230000009286 beneficial effect Effects 0.000 description 6
- 230000035945 sensitivity Effects 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
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- 239000004065 semiconductor Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
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- 230000006872 improvement Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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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
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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
- G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
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Abstract
本申请公开了一种光学成像镜头，其沿着光轴由物侧至像侧依序包括：具有光焦度的第一透镜，其物侧面为凸面；具有负光焦度的第二透镜，其像侧面为凹面；具有光焦度的第三透镜；具有光焦度的第四透镜；具有正光焦度的第五透镜，其物侧面为凸面，像侧面为凹面；以及具有负光焦度的第六透镜，其物侧面为凸面。第一透镜和第二透镜的组合焦距f12与光学成像镜头的总有效焦距f满足：0.5＜f12/f≤1.5。
The present application discloses an optical imaging lens, which includes, in order from the object side to the image side along the optical axis: a first lens with optical power, whose object side surface is convex; a second lens with negative optical power, whose image side surface is concave; a third lens with optical power; a fourth lens with optical power; a fifth lens with positive optical power, whose object side surface is convex and whose image side surface is concave; and a sixth lens with negative optical power, whose object side surface is convex. The combined focal length f12 of the first lens and the second lens and the total effective focal length f of the optical imaging lens satisfy: 0.5＜f12/f≤1.5.
Description
Technical Field
The present application relates to the field of optical elements, and more particularly, to an optical imaging lens.
Background
With the increasing popularity of portable electronic products such as smart phones, people have increasingly higher quality requirements for photographing the portable electronic products such as smart phones. With the improvement of the performance and the reduction of the size of a Charge Coupled Device (CCD) and a Complementary Metal Oxide Semiconductor (CMOS) image sensor, the imaging lens is required to meet the requirements of high pixels and miniaturization.
Imaging lenses capable of achieving good imaging quality on the basis of ensuring miniaturization have become targets pursued by portable electronic product manufacturers such as numerous mobile phones.
Disclosure of Invention
The application provides an optical imaging lens which sequentially comprises a first lens with optical power, a second lens with negative optical power, a third lens with optical power, a fourth lens with optical power, a fifth lens with positive optical power, a sixth lens with negative optical power and a convex object side, wherein the first lens with optical power, the object side of the first lens with the optical power is a convex surface, the image side of the second lens with the negative optical power is a concave surface, the fourth lens with optical power, the fifth lens with positive optical power, the object side of the fifth lens with the positive optical power and the object side of the sixth lens with the negative optical power are convex surfaces along an optical axis from the object side to the image side.
In one embodiment, at least one of the object-side surface of the first lens element to the image-side surface of the sixth lens element is an aspherical mirror surface.
In one embodiment, the total effective focal length f of the optical imaging lens and the entrance pupil diameter EPD of the optical imaging lens may satisfy f/EPD <2.
In one embodiment, the total effective focal length f of the optical imaging lens and one half HFOV of the maximum field angle of the optical imaging lens may satisfy tan (HFOV) x f >4.58mm.
In one embodiment, the total effective focal length f of the optical imaging lens and the effective focal length f6 of the sixth lens may satisfy f6/f < -1.44.
In one embodiment, the maximum effective radius DT31 of the object-side surface of the third lens and the maximum effective radius DT21 of the object-side surface of the second lens may satisfy 0.6< DT31/DT21<1.
In one embodiment, the effective focal length f1 of the first lens and the radius of curvature R1 of the object-side surface of the first lens may satisfy 0.2< R1/f1<0.6.
In one embodiment, the distance SAG51 on the optical axis from the intersection point of the object side surface of the fifth lens and the optical axis to the effective radius vertex of the object side surface of the fifth lens and the distance SAG52 on the optical axis from the intersection point of the image side surface of the fifth lens and the optical axis to the effective radius vertex of the image side surface of the fifth lens may satisfy 0.1< SAG51/SAG 52.ltoreq.0.63.
In one embodiment, the total effective focal length f of the optical imaging lens and the effective focal length f5 of the fifth lens may satisfy 0<f/f5<0.4.
In one embodiment, the effective focal length f2 of the second lens, the radius of curvature R3 of the object-side surface of the second lens, and the radius of curvature R4 of the image-side surface of the second lens may satisfy-1.2 < f 2/(R3+R4) < -0.6.
In one embodiment, the radius of curvature R11 of the object-side surface of the sixth lens, the radius of curvature R12 of the image-side surface of the sixth lens, and the distance TTL on the optical axis from the object-side surface of the first lens to the imaging surface of the optical imaging lens may satisfy 0.8< TTL/(R11+R12) <1.3.
In one embodiment, the radius of curvature R9 of the object-side surface of the fifth lens element and the radius of curvature R10 of the image-side surface of the fifth lens element may satisfy (R10-R9)/(R10+R9). Ltoreq.0.13.
In one embodiment, the separation distance T12 of the first lens and the second lens on the optical axis and the separation distance T23 of the second lens and the third lens on the optical axis can satisfy 0.14< T12/T23<0.6.
In one embodiment, the center thickness CT3 of the third lens and the center thickness CT4 of the fourth lens may satisfy 0.4< CT4/CT3<1.2.
In one embodiment, the center thickness CT1 of the first lens, the center thickness CT5 of the fifth lens, the center thickness CT6 of the sixth lens, and the distance TTL between the object side surface of the first lens and the imaging surface of the optical imaging lens on the optical axis may satisfy 0< (CT1+CT5+CT6)/TTL less than or equal to 0.36.
In one embodiment, the combined focal length f12 of the first lens and the second lens and the total effective focal length f of the optical imaging lens can satisfy 0.5< f 12/f.ltoreq.1.5.
The application provides the optical imaging lens which is applicable to portable electronic products and has miniaturization and good imaging quality through reasonably distributing the focal power and optimizing the optical parameters.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the accompanying drawings in which:
fig. 1 shows a schematic configuration diagram of an optical imaging lens according to embodiment 1 of the present application;
Fig. 2A to 2D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the optical imaging lens of embodiment 1;
fig. 3 is a schematic diagram showing the structure of an optical imaging lens according to embodiment 2 of the present application;
Fig. 4A to 4D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the optical imaging lens of embodiment 2;
Fig. 5 shows a schematic structural view of an optical imaging lens according to embodiment 3 of the present application;
Fig. 6A to 6D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the optical imaging lens of embodiment 3;
fig. 7 shows a schematic configuration diagram of an optical imaging lens according to embodiment 4 of the present application;
Fig. 8A to 8D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the optical imaging lens of embodiment 4;
fig. 9 shows a schematic configuration diagram of an optical imaging lens according to embodiment 5 of the present application;
Fig. 10A to 10D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the optical imaging lens of embodiment 5;
Fig. 11 shows a schematic structural view of an optical imaging lens according to embodiment 6 of the present application;
Fig. 12A to 12D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the optical imaging lens of embodiment 6;
fig. 13 is a schematic diagram showing the structure of an optical imaging lens according to embodiment 7 of the present application;
Fig. 14A to 14D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the optical imaging lens of embodiment 7;
Fig. 15 shows a schematic structural view of an optical imaging lens according to embodiment 8 of the present application;
Fig. 16A to 16D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the optical imaging lens of embodiment 8;
fig. 17 shows a schematic configuration of an optical imaging lens according to embodiment 9 of the present application, and
Fig. 18A to 18D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of the optical imaging lens of embodiment 9, respectively.
Detailed Description
For a better understanding of the application, various aspects of the 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 application and is not intended to limit the scope of the application in any way. Like reference numerals refer to like elements throughout the specification. The expression "and/or" includes any and all combinations of one or more of the associated listed items.
It should be noted that in the present specification, the expressions of first, second, third, etc. are only used to distinguish one feature from another feature, and do not represent any limitation on the feature. Accordingly, a first lens discussed below may also be referred to as a second lens or a third lens without departing from the teachings of the present application.
In the drawings, the thickness, size, and shape of the lenses have been slightly exaggerated for convenience of explanation. In particular, the spherical or aspherical shape shown in the drawings is shown by way of example. That is, the shape of the spherical or aspherical surface is not limited to the shape of the spherical or aspherical surface shown in the drawings. The figures are merely examples and are not drawn to scale.
Herein, the paraxial region refers to a region near the optical axis. If the lens surface is convex and the convex position is not defined, it means that the lens surface is convex at least in the paraxial region, and if the lens surface is concave and the concave position is not defined, it means that the lens surface is concave at least in the paraxial region. The surface of each lens closest to the object is referred to as the object side of the lens, and the surface of each lens closest to the imaging plane is referred to as the image side of the lens.
It will be further understood that the terms "comprises," "comprising," "includes," "including," "having," "containing," and/or "including," when used in this specification, specify the presence of stated features, elements, and/or components, but do not preclude the presence or addition of one or more other features, elements, components, and/or groups thereof. Furthermore, when a statement such as "at least one of the following" appears after a list of features that are listed, the entire listed feature is modified instead of modifying a separate element in the list. Furthermore, when describing embodiments of the application, use of "may" means "one or more embodiments of the 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, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
The features, principles, and other aspects of the present application are described in detail below.
The optical imaging lens according to an exemplary embodiment of the present application may include six lenses having optical power, namely, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. The six lenses are arranged in order from the object side to the image side along the optical axis. Any two adjacent lenses from the first lens to the sixth lens can have a spacing distance therebetween.
In an exemplary embodiment, the first lens may have positive or negative power, the object-side surface of which may be convex, the second lens may have negative power, the image-side surface of which may be concave, the third lens may have positive or negative power, the fourth lens may have positive or negative power, the fifth lens may have positive power, the object-side surface of which may be convex, the image-side surface of which may be concave, and the sixth lens may have negative power, the object-side surface of which may be convex.
In an exemplary embodiment, the optical imaging lens according to the present application may satisfy f/EPD <2, where f is the total effective focal length of the optical imaging lens and EPD is the entrance pupil diameter of the optical imaging lens. Satisfying f/EPD <2 can enable the optical system to better correct the primary aberration, enable the system to have good imaging quality and lower sensitivity, enable the system to be easily injection molded and assembled with higher yield.
In an exemplary embodiment, an optical imaging lens according to the present application may satisfy tan (HFOV). Times.f >4.58mm, where f is the total effective focal length of the optical imaging lens and HFOV is half the maximum field angle of the optical imaging lens. Satisfying tan (HFOV) ×f >4.58mm may enable the optical system to better correct the primary aberrations, enable the system to have good imaging quality and lower sensitivity, and enable the system to be easily injection molded and assembled with higher yields.
In an exemplary embodiment, the optical imaging lens according to the present application may satisfy f6/f < -1.44, where f is the total effective focal length of the optical imaging lens and f6 is the effective focal length of the sixth lens. More specifically, f6 and f may further satisfy f6/f < -1.60. Satisfying f6/f < -1.44, the optical system can better correct primary aberration, so that the system has good imaging quality and lower sensitivity, and is easy to be injection molded and assembled with higher yield.
In an exemplary embodiment, the optical imaging lens according to the present application may satisfy 0.6< dt31/DT21<1, where DT31 is the maximum effective radius of the object side of the third lens and DT21 is the maximum effective radius of the object side of the second lens. More specifically, DT31 and DT21 may further satisfy 0.8< DT31/DT21<0.9. Satisfying 0.6< D T31/DT21<1, being beneficial to making the space distribution of the optical imaging lens more reasonable on the premise of realizing a large image plane.
In an exemplary embodiment, the optical imaging lens according to the present application may satisfy 0.2< R1/f1<0.6, where f1 is an effective focal length of the first lens and R1 is a radius of curvature of an object side surface of the first lens. More specifically, R1 and f1 may further satisfy 0.4< R1/f1<0.5. Satisfying 0.2< R1/f1<0.6, the performance of the optical system can be ensured, the tolerance sensitivity is reduced, and the optical system has better mass production feasibility.
In an exemplary embodiment, the optical imaging lens according to the present application may satisfy 0.1< SAG51/SAG 52.ltoreq.0.63, wherein SAG51 is a distance on the optical axis between an intersection point of the object side surface of the fifth lens and the optical axis and an effective radius vertex of the object side surface of the fifth lens, and SAG52 is a distance on the optical axis between an intersection point of the image side surface of the fifth lens and the optical axis and an effective radius vertex of the image side surface of the fifth lens. More specifically, SAG51 and SAG52 may further satisfy 0.5< SAG51/SAG 52.ltoreq.0.63. Meets 0.1< SAG51/SAG52 less than or equal to 0.63, is beneficial to limiting the bending of the lens and reducing the manufacturing and forming difficulty of the lens.
In an exemplary embodiment, the optical imaging lens according to the present application may satisfy 0<f/f5<0.4, where f is the total effective focal length of the optical imaging lens and f5 is the effective focal length of the fifth lens. More specifically, f and f5 may further satisfy 0.1< f/f5<0.3. The lens satisfies 0<f/f5<0.4, which is beneficial to the reasonable distribution of the focal power of each lens in space and the reduction of the aberration of the optical imaging lens.
In an exemplary embodiment, the optical imaging lens according to the present application may satisfy-1.2 < f 2/(r3+r4) < -0.6, where f2 is an effective focal length of the second lens, R3 is a radius of curvature of an object side surface of the second lens, and R4 is a radius of curvature of an image side surface of the second lens. More specifically, f2, R3 and R4 may further satisfy-1.1 < f 2/(R3+R4) < -0.8. Meets the condition that-1.2 < f 2/(R3+R4) < -0.6, can avoid the overlarge bending of the second lens and is beneficial to processing and forming.
In an exemplary embodiment, the optical imaging lens according to the present application may satisfy 0.8< TTL/(R11+R12) <1.3, where R11 is a radius of curvature of an object side surface of the sixth lens, R12 is a radius of curvature of an image side surface of the sixth lens, and TTL is a distance on an optical axis from the object side surface of the first lens to an imaging surface of the optical imaging lens. More specifically, TTL, R11, and R12 may further satisfy 1.0< TTL/(R11+R12) <1.1. The bending degree of the first lens can be effectively ensured by satisfying 0.8< TTL/(R11+R12) <1.3, and the processing and forming of the first lens are facilitated.
In an exemplary embodiment, the optical imaging lens according to the present application may satisfy (R10-R9)/(R10+R9). Ltoreq.0.13, wherein R9 is a radius of curvature of an object side surface of the fifth lens, and R10 is a radius of curvature of an image side surface of the fifth lens. Satisfies (R10-R9)/(R10+R9) less than or equal to 0.13, and can effectively control the contribution of the astigmatic quantity of the object side surface and the image side surface of the fifth lens, thereby effectively reasonably controlling the image quality of the intermediate view field and the aperture zone.
In an exemplary embodiment, the optical imaging lens according to the present application may satisfy 0.14< T12/T23<0.6, where T12 is a separation distance of the first lens and the second lens on the optical axis, and T23 is a separation distance of the second lens and the third lens on the optical axis. More specifically, T12 and T23 may further satisfy 0.3< T12/T23<0.5. Meets the requirements of 0.14< T12/T23<0.6, and can better ensure the processability and manufacturability of the lens.
In an exemplary embodiment, the optical imaging lens according to the present application may satisfy 0.4< ct4/CT3<1.2, where CT3 is a center thickness of the third lens and CT4 is a center thickness of the fourth lens. More specifically, CT4 and CT3 may further satisfy 0.8< CT4/CT3<1.1. Satisfying 0.4< CT4/CT3<1.2, and being beneficial to correcting the axial chromatic aberration of the optical system, thereby obtaining better imaging performance.
In an exemplary embodiment, the optical imaging lens according to the present application may satisfy 0< (CT1+CT5+CT6)/TTL.ltoreq.0.36, where CT1 is a center thickness of the first lens, CT5 is a center thickness of the fifth lens, CT6 is a center thickness of the sixth lens, and TTL 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, CT1, CT5, CT6 and TTL can further satisfy that 0.3< (CT1+CT5+CT6)/TTL is less than or equal to 0.36. Satisfies 0< (CT1+CT5+CT6)/TTL less than or equal to 0.36, and can effectively ensure the thickness of each optical component so as to better correct distortion and chromatic aberration.
In an exemplary embodiment, the optical imaging lens according to the present application may satisfy 0.5< f 12/f.ltoreq.1.5, where f12 is a combined focal length of the first lens and the second lens, and f is a total effective focal length of the optical imaging lens. More specifically, f12 and f may further satisfy 1.0< f 12/f.ltoreq.1.2. Satisfies 0.5< f12/f less than or equal to 1.5, is favorable for reasonably distributing the focal power of each lens in space, and is favorable for reducing the aberration of the optical imaging lens.
In an exemplary embodiment, the optical imaging lens according to the present application further includes a diaphragm 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 located on the imaging surface. The application provides an optical imaging lens with the characteristics of ultra-large aperture, large image plane, ultra-thin performance, good imaging quality and the like. The optical imaging lens according to the above embodiment of the present application may employ a plurality of lenses, for example, six lenses as described above. By reasonably distributing the focal power, the surface shape, the center thickness of each lens, the axial spacing between each lens and the like of each lens, incident light rays can be effectively converged, the optical total length of the imaging lens is reduced, and the processability of the imaging lens is improved, so that the optical imaging lens is more beneficial to production and processing.
In an embodiment of the present application, at least one of the mirrors of each lens is an aspherical mirror, i.e., at least one of the object side surface of the first lens to the image side surface of the sixth lens is an aspherical mirror. The aspherical lens is characterized in that the curvature is continuously changed from the center of the lens to the periphery of the lens. Unlike a spherical lens having a constant curvature from the center of the lens to the periphery of the lens, an aspherical lens has a better radius of curvature characteristic, and has advantages of improving distortion aberration and improving astigmatic aberration. By adopting the aspherical lens, aberration occurring at the time of imaging can be eliminated as much as possible, thereby improving imaging quality. 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, and the sixth lens is an aspherical mirror surface. Optionally, the object side surface and the image side surface of each of the first lens, the second lens, the third lens, the fourth lens, the fifth lens and the sixth lens are aspherical mirror surfaces.
However, it will be appreciated by those skilled in the art that the number of lenses making up the optical imaging lens can be varied to achieve the various results and advantages described in this specification without departing from the technical solution claimed in the present application. For example, although six lenses are described as an example in the embodiment, the optical imaging lens is not limited to include six lenses. The optical imaging lens may also include other numbers of lenses, if desired.
Specific examples of the optical imaging lens applicable to the above-described embodiments are further described below with reference to the accompanying drawings.
Example 1
An optical imaging lens according to embodiment 1 of the present application is described below with reference to fig. 1 to 2D. Fig. 1 shows a schematic configuration diagram of an optical imaging lens according to embodiment 1 of the present application.
As shown in fig. 1, the optical imaging lens sequentially 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 filter E7 and an imaging surface S15 from an object side to an image side.
The first lens element E1 has positive refractive power, wherein an object-side surface S1 thereof is convex, and an image-side surface S2 thereof is concave. The second lens element E2 has negative refractive power, wherein an object-side surface S3 thereof is convex, and an image-side surface S4 thereof is concave. The third lens element E3 has positive refractive power, wherein an object-side surface S5 thereof is convex, and an image-side surface S6 thereof is concave. The fourth lens element E4 has negative refractive power, wherein an object-side surface S7 thereof is convex and an image-side surface S8 thereof is concave. The fifth lens element E5 has positive refractive power, wherein an object-side surface S9 thereof is convex, and an image-side surface S10 thereof is concave. The sixth lens element E6 has negative refractive power, wherein an object-side surface S11 thereof is convex and an image-side surface S12 thereof is concave. The filter E7 has an object side surface S13 and an image side surface S14. Light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging surface S15.
Table 1 shows the basic parameter table of the optical imaging lens of embodiment 1, in which the units of radius of curvature, thickness/distance, and focal length are all millimeters (mm).
TABLE 1
In this example, the total effective focal length f of the optical imaging lens is 5.56mm, the total length TTL 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 S15 of the optical imaging lens) is 6.11mm, the half of the diagonal length ImgH of the effective pixel area on the imaging surface S15 of the optical imaging lens is 4.72mm, the half HFOV of the maximum field angle of the optical imaging lens is 40.78 °, and the aperture value Fno of the optical imaging lens is 1.88.
In embodiment 1, the object side surface and the image side surface of any one of the first lens E1 to the sixth lens E6 are aspherical, and the surface profile x of each aspherical lens can be defined by, but not limited to, the following aspherical formula:
Where x is the distance vector height of the aspherical surface at a position h in the optical axis direction from the apex of the aspherical surface, c is the paraxial curvature of the aspherical surface, c=1/R (i.e., paraxial curvature c is the reciprocal of the radius of curvature R in table 1 above), k is a conic coefficient, and Ai is the correction coefficient of the i-th order of the aspherical surface. The following Table 2 shows the higher order coefficients A 4、A6、A8、A10、A12、A14、A16、A18 and A 20 that can be used for each of the aspherical mirrors S1-S12 in example 1.
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | -1.9647E-03 | 9.2367E-03 | -2.6472E-02 | 4.6095E-02 | -4.9734E-02 | 3.3492E-02 | -1.3831E-02 | 3.2155E-03 | -3.3026E-04 |
| S2 | -2.0080E-02 | 1.7840E-02 | -1.3237E-02 | 1.6949E-02 | -2.1777E-02 | 1.6972E-02 | -7.7097E-03 | 1.8805E-03 | -1.9168E-04 |
| S3 | -5.3457E-02 | 4.2246E-02 | 7.7523E-03 | -5.2284E-02 | 7.6902E-02 | -6.8843E-02 | 3.8462E-02 | -1.2017E-02 | 1.6061E-03 |
| S4 | -3.1187E-02 | 6.8881E-02 | -1.4458E-01 | 3.7709E-01 | -6.2412E-01 | 6.2667E-01 | -3.6787E-01 | 1.1492E-01 | -1.4132E-02 |
| S5 | -4.7631E-02 | 2.8993E-02 | -1.0185E-01 | 2.1411E-01 | -3.3202E-01 | 3.4275E-01 | -2.2220E-01 | 8.0798E-02 | -1.2462E-02 |
| S6 | -5.7131E-02 | 5.0157E-02 | -1.0112E-01 | 1.3793E-01 | -1.3511E-01 | 8.3131E-02 | -2.7718E-02 | 3.2445E-03 | 2.9885E-04 |
| S7 | -7.8491E-02 | 4.7672E-03 | 1.1277E-01 | -2.6542E-01 | 3.3057E-01 | -2.4758E-01 | 1.1112E-01 | -2.7639E-02 | 2.9215E-03 |
| S8 | -7.7426E-02 | 1.7965E-02 | 2.5246E-02 | -4.2974E-02 | 3.5667E-02 | -1.6447E-02 | 4.2203E-03 | -5.6627E-04 | 3.1064E-05 |
| S9 | -2.6942E-02 | -7.3058E-03 | 3.0410E-03 | -2.6990E-03 | 1.3324E-03 | -3.1817E-04 | 4.0459E-05 | -2.6731E-06 | 7.2628E-08 |
| S10 | -3.3905E-02 | 1.7976E-02 | -1.3480E-02 | 5.3058E-03 | -1.3130E-03 | 2.1400E-04 | -2.2133E-05 | 1.3009E-06 | -3.2720E-08 |
| S11 | -1.7948E-01 | 6.4763E-02 | -1.6252E-02 | 2.9964E-03 | -3.9230E-04 | 3.4910E-05 | -1.9977E-06 | 6.6191E-08 | -9.6495E-10 |
| S12 | -1.5835E-01 | 6.1466E-02 | -1.9998E-02 | 4.5852E-03 | -6.8949E-04 | 6.5925E-05 | -3.8464E-06 | 1.2466E-07 | -1.7182E-09 |
TABLE 2
Fig. 2A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 1, which indicates the deviation of the converging focus after light rays of different wavelengths pass through the lens. Fig. 2B shows an astigmatism curve of the optical imaging lens of embodiment 1, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 2C shows a distortion curve of the optical imaging lens of embodiment 1, which represents distortion magnitude values corresponding to different image heights. Fig. 2D shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 1, which represents the deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 2A to 2D, the optical imaging lens provided in embodiment 1 can achieve good imaging quality.
Example 2
An optical imaging lens according to embodiment 2 of the present application is described below with reference to fig. 3 to 4D. In this embodiment and the following embodiments, descriptions of portions similar to embodiment 1 will be omitted for brevity. Fig. 3 shows a schematic configuration of an optical imaging lens according to embodiment 2 of the present application.
As shown in fig. 3, the optical imaging lens sequentially 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 filter E7 and an imaging surface S15 from the object side to the image side.
The first lens element E1 has positive refractive power, wherein an object-side surface S1 thereof is convex, and an image-side surface S2 thereof is concave. The second lens element E2 has negative refractive power, wherein an object-side surface S3 thereof is convex, and an image-side surface S4 thereof is concave. The third lens element E3 has positive refractive power, wherein an object-side surface S5 thereof is concave, and an image-side surface S6 thereof is convex. The fourth lens element E4 has negative refractive power, wherein an object-side surface S7 thereof is concave and an image-side surface S8 thereof is convex. The fifth lens element E5 has positive refractive power, wherein an object-side surface S9 thereof is convex, and an image-side surface S10 thereof is concave. The sixth lens element E6 has negative refractive power, wherein an object-side surface S11 thereof is convex and an image-side surface S12 thereof is concave. The filter E7 has an object side surface S13 and an image side surface S14. Light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging surface S15.
In this example, the total effective focal length f of the optical imaging lens is 5.52mm, the total length TTL of the optical imaging lens is 6.20mm, the half of the diagonal length ImgH of the effective pixel area on the imaging surface S15 of the optical imaging lens is 4.72mm, the half HFOV of the maximum field angle of the optical imaging lens is 40.12 °, and the aperture value Fno of the optical imaging lens is 1.88.
Table 3 shows the basic parameter table of the optical imaging lens of embodiment 2, in which the units of radius of curvature, thickness/distance, and focal length are all millimeters (mm). Table 4 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 2, wherein each of the aspherical surface types can be defined by the formula (1) given in example 1 above.
TABLE 3 Table 3
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | -1.6741E-03 | 9.2523E-03 | -2.7804E-02 | 5.0623E-02 | -5.6637E-02 | 3.9234E-02 | -1.6537E-02 | 3.8980E-03 | -4.0303E-04 |
| S2 | -1.8522E-02 | 1.9728E-02 | -3.3766E-02 | 6.7868E-02 | -9.0052E-02 | 7.1434E-02 | -3.3393E-02 | 8.4642E-03 | -8.9686E-04 |
| S3 | -5.0962E-02 | 2.9032E-02 | 3.8672E-02 | -1.1433E-01 | 1.6584E-01 | -1.4968E-01 | 8.2736E-02 | -2.5403E-02 | 3.3316E-03 |
| S4 | -2.7775E-02 | 5.3973E-02 | -9.8320E-02 | 2.4854E-01 | -3.7402E-01 | 3.1776E-01 | -1.3560E-01 | 1.7790E-02 | 3.1993E-03 |
| S5 | -4.2533E-02 | -1.6060E-03 | -1.5871E-02 | 1.1346E-02 | 3.1501E-03 | -3.2992E-02 | 4.6333E-02 | -2.8610E-02 | 6.6863E-03 |
| S6 | -4.4115E-02 | 7.5109E-03 | -7.6228E-03 | -5.1734E-02 | 1.4905E-01 | -2.0217E-01 | 1.5268E-01 | -6.1237E-02 | 1.0179E-02 |
| S7 | -6.7874E-02 | -4.8697E-02 | 2.4293E-01 | -5.0928E-01 | 6.4430E-01 | -5.0536E-01 | 2.4127E-01 | -6.4459E-02 | 7.3571E-03 |
| S8 | -7.1104E-02 | -5.5883E-03 | 6.4384E-02 | -8.4650E-02 | 6.5561E-02 | -2.9727E-02 | 7.6735E-03 | -1.0479E-03 | 5.8920E-05 |
| S9 | -2.5182E-02 | -1.3474E-02 | 8.9264E-03 | -5.5040E-03 | 2.1491E-03 | -4.7184E-04 | 5.8636E-05 | -3.8924E-06 | 1.0776E-07 |
| S10 | -3.3202E-02 | 1.3630E-02 | -1.0638E-02 | 4.4043E-03 | -1.1719E-03 | 2.0719E-04 | -2.3049E-05 | 1.4353E-06 | -3.7730E-08 |
| S11 | -1.7652E-01 | 6.1725E-02 | -1.4843E-02 | 2.6194E-03 | -3.3018E-04 | 2.8521E-05 | -1.5972E-06 | 5.2153E-08 | -7.5353E-10 |
| S12 | -1.5530E-01 | 5.9246E-02 | -1.9090E-02 | 4.3698E-03 | -6.5515E-04 | 6.2152E-05 | -3.5813E-06 | 1.1424E-07 | -1.5466E-09 |
TABLE 4 Table 4
Fig. 4A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 2, which indicates the deviation of the converging focus after light rays of different wavelengths pass through the lens. Fig. 4B shows an astigmatism curve of the optical imaging lens of embodiment 2, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 4C shows a distortion curve of the optical imaging lens of embodiment 2, which represents distortion magnitude values corresponding to different image heights. Fig. 4D shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 2, which represents the deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 4A to 4D, the optical imaging lens provided in embodiment 2 can achieve good imaging quality.
Example 3
An optical imaging lens according to embodiment 3 of the present application is described below with reference to fig. 5 to 6D. Fig. 5 shows a schematic configuration diagram of an optical imaging lens according to embodiment 3 of the present application.
As shown in fig. 5, the optical imaging lens sequentially 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 filter E7 and an imaging surface S15 from the object side to the image side.
The first lens element E1 has positive refractive power, wherein an object-side surface S1 thereof is convex, and an image-side surface S2 thereof is concave. The second lens element E2 has negative refractive power, wherein an object-side surface S3 thereof is convex, and an image-side surface S4 thereof is concave. The third lens element E3 has positive refractive power, wherein an object-side surface S5 thereof is convex, and an image-side surface S6 thereof is concave. The fourth lens element E4 has negative refractive power, wherein an object-side surface S7 thereof is concave and an image-side surface S8 thereof is convex. The fifth lens element E5 has positive refractive power, wherein an object-side surface S9 thereof is convex, and an image-side surface S10 thereof is concave. The sixth lens element E6 has negative refractive power, wherein an object-side surface S11 thereof is convex and an image-side surface S12 thereof is concave. The filter E7 has an object side surface S13 and an image side surface S14. Light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging surface S15.
In this example, the total effective focal length f of the optical imaging lens is 5.52mm, the total length TTL of the optical imaging lens is 6.20mm, the half of the diagonal length ImgH of the effective pixel area on the imaging surface S15 of the optical imaging lens is 4.72mm, the half HFOV of the maximum field angle of the optical imaging lens is 40.05 °, and the aperture value Fno of the optical imaging lens is 1.88.
Table 5 shows the basic parameter table of the optical imaging lens of embodiment 3, in which the units of radius of curvature, thickness/distance, and focal length are all millimeters (mm). Table 6 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 3, wherein each of the aspherical surface types can be defined by the formula (1) given in example 1 above.
TABLE 5
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | -1.1266E-03 | 4.4829E-03 | -1.1240E-02 | 1.7882E-02 | -1.8063E-02 | 1.1583E-02 | -4.7142E-03 | 1.1243E-03 | -1.2758E-04 |
| S2 | -1.8988E-02 | 1.5897E-02 | -1.0331E-02 | 1.5799E-02 | -2.6390E-02 | 2.5280E-02 | -1.3816E-02 | 4.0319E-03 | -4.9078E-04 |
| S3 | -5.4715E-02 | 4.9109E-02 | -2.8394E-02 | 4.6432E-02 | -7.8869E-02 | 7.9735E-02 | -4.5975E-02 | 1.4302E-02 | -1.8586E-03 |
| S4 | -3.2564E-02 | 6.6634E-02 | -1.2579E-01 | 3.0642E-01 | -4.6478E-01 | 4.1012E-01 | -1.9221E-01 | 3.6340E-02 | 8.9879E-04 |
| S5 | -4.6695E-02 | 7.7507E-03 | 8.5172E-03 | -1.6340E-01 | 4.6406E-01 | -6.9726E-01 | 5.9488E-01 | -2.7233E-01 | 5.2101E-02 |
| S6 | -4.8312E-02 | 7.0360E-03 | 2.8730E-02 | -1.4644E-01 | 2.6877E-01 | -2.8449E-01 | 1.7972E-01 | -6.2937E-02 | 9.4409E-03 |
| S7 | -6.9572E-02 | -4.0387E-02 | 2.3307E-01 | -5.0691E-01 | 6.5382E-01 | -5.2100E-01 | 2.5198E-01 | -6.8015E-02 | 7.8306E-03 |
| S8 | -7.0676E-02 | -4.9248E-03 | 6.3236E-02 | -8.4758E-02 | 6.6251E-02 | -3.0115E-02 | 7.7699E-03 | -1.0588E-03 | 5.9323E-05 |
| S9 | -2.7393E-02 | -9.4124E-03 | 4.4282E-03 | -2.8302E-03 | 1.2041E-03 | -2.6818E-04 | 3.2513E-05 | -2.0638E-06 | 5.4029E-08 |
| S10 | -3.5506E-02 | 1.8046E-02 | -1.3977E-02 | 5.8122E-03 | -1.5280E-03 | 2.6162E-04 | -2.7922E-05 | 1.6677E-06 | -4.2210E-08 |
| S11 | -1.7946E-01 | 6.4899E-02 | -1.6344E-02 | 3.0281E-03 | -3.9837E-04 | 3.5544E-05 | -2.0316E-06 | 6.6921E-08 | -9.6542E-10 |
| S12 | -1.5712E-01 | 6.0545E-02 | -1.9583E-02 | 4.4502E-03 | -6.5835E-04 | 6.1519E-05 | -3.4924E-06 | 1.0986E-07 | -1.4686E-09 |
TABLE 6
Fig. 6A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 3, which indicates a convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 6B shows an astigmatism curve of the optical imaging lens of embodiment 3, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 6C shows a distortion curve of the optical imaging lens of embodiment 3, which represents distortion magnitude values corresponding to different image heights. Fig. 6D shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 3, which represents the deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 6A to 6D, the optical imaging lens provided in embodiment 3 can achieve good imaging quality.
Example 4
An optical imaging lens according to embodiment 4 of the present application is described below with reference to fig. 7 to 8D. Fig. 7 shows a schematic configuration diagram of an optical imaging lens according to embodiment 4 of the present application.
As shown in fig. 7, the optical imaging lens sequentially includes, from an object side to an image side, 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 filter E7, and an imaging surface S15.
The first lens element E1 has positive refractive power, wherein an object-side surface S1 thereof is convex, and an image-side surface S2 thereof is concave. The second lens element E2 has negative refractive power, wherein an object-side surface S3 thereof is convex, and an image-side surface S4 thereof is concave. The third lens element E3 has positive refractive power, wherein an object-side surface S5 thereof is convex, and an image-side surface S6 thereof is concave. The fourth lens element E4 has negative refractive power, wherein an object-side surface S7 thereof is convex and an image-side surface S8 thereof is concave. The fifth lens element E5 has positive refractive power, wherein an object-side surface S9 thereof is convex, and an image-side surface S10 thereof is concave. The sixth lens element E6 has negative refractive power, wherein an object-side surface S11 thereof is convex and an image-side surface S12 thereof is concave. The filter E7 has an object side surface S13 and an image side surface S14. Light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging surface S15.
In this example, the total effective focal length f of the optical imaging lens is 5.52mm, the total length TTL of the optical imaging lens is 6.20mm, the half of the diagonal length ImgH of the effective pixel area on the imaging surface S15 of the optical imaging lens is 4.72mm, the half HFOV of the maximum field angle of the optical imaging lens is 40.14 °, and the aperture value Fno of the optical imaging lens is 1.88.
Table 7 shows a basic parameter table of the optical imaging lens of example 4, in which the units of radius of curvature, thickness/distance, and focal length are all millimeters (mm). Table 8 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 4, wherein each of the aspherical surface types can be defined by the formula (1) given in example 1 above.
TABLE 7
TABLE 8
Fig. 8A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 4, which indicates a convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 8B shows an astigmatism curve of the optical imaging lens of embodiment 4, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 8C shows a distortion curve of the optical imaging lens of embodiment 4, which represents distortion magnitude values corresponding to different image heights. Fig. 8D shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 4, which represents the deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 8A to 8D, the optical imaging lens provided in embodiment 4 can achieve good imaging quality.
Example 5
An optical imaging lens according to embodiment 5 of the present application is described below with reference to fig. 9 to 10D. Fig. 9 shows a schematic configuration of an optical imaging lens according to embodiment 5 of the present application.
As shown in fig. 9, the optical imaging lens sequentially includes, from an object side to an image side, 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 filter E7, and an imaging surface S15.
The first lens element E1 has positive refractive power, wherein an object-side surface S1 thereof is convex, and an image-side surface S2 thereof is concave. The second lens element E2 has negative refractive power, wherein an object-side surface S3 thereof is convex, and an image-side surface S4 thereof is concave. The third lens element E3 has negative refractive power, wherein an object-side surface S5 thereof is convex, and an image-side surface S6 thereof is concave. The fourth lens element E4 has positive refractive power, wherein an object-side surface S7 thereof is concave and an image-side surface S8 thereof is convex. The fifth lens element E5 has positive refractive power, wherein an object-side surface S9 thereof is convex, and an image-side surface S10 thereof is concave. The sixth lens element E6 has negative refractive power, wherein an object-side surface S11 thereof is convex and an image-side surface S12 thereof is concave. The filter E7 has an object side surface S13 and an image side surface S14. Light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging surface S15.
In this example, the total effective focal length f of the optical imaging lens is 5.54mm, the total length TTL of the optical imaging lens is 6.20mm, the half of the diagonal length ImgH of the effective pixel area on the imaging surface S15 of the optical imaging lens is 4.72mm, the half HFOV of the maximum field angle of the optical imaging lens is 39.95 °, and the aperture value Fno of the optical imaging lens is 1.88.
Table 9 shows a basic parameter table of the optical imaging lens of embodiment 5, in which the units of radius of curvature, thickness/distance, and focal length are all millimeters (mm). Table 10 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 5, wherein each of the aspherical surface types can be defined by the formula (1) given in example 1 above.
TABLE 9
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | -1.4118E-03 | 6.2110E-03 | -1.5808E-02 | 2.4824E-02 | -2.4293E-02 | 1.4912E-02 | -5.7171E-03 | 1.2704E-03 | -1.3424E-04 |
| S2 | -2.1055E-02 | 2.2263E-02 | -2.9068E-02 | 5.4666E-02 | -7.5540E-02 | 6.2894E-02 | -3.0911E-02 | 8.2789E-03 | -9.3413E-04 |
| S3 | -5.5558E-02 | 5.2053E-02 | -2.9565E-02 | 4.2251E-02 | -6.8093E-02 | 6.6301E-02 | -3.6613E-02 | 1.0888E-02 | -1.3494E-03 |
| S4 | -2.7444E-02 | 3.9901E-02 | 3.2724E-03 | -6.6359E-02 | 1.9013E-01 | -2.9870E-01 | 2.6724E-01 | -1.2625E-01 | 2.4907E-02 |
| S5 | -4.4177E-02 | -2.4761E-02 | 1.6283E-01 | -5.5217E-01 | 1.0549E+00 | -1.2324E+00 | 8.6886E-01 | -3.4003E-01 | 5.6933E-02 |
| S6 | -7.0837E-02 | 7.2194E-02 | -1.4444E-01 | 2.0921E-01 | -2.1648E-01 | 1.4244E-01 | -5.4035E-02 | 9.7580E-03 | -4.0818E-04 |
| S7 | -8.3509E-02 | 1.1168E-03 | 1.4240E-01 | -3.4750E-01 | 4.5865E-01 | -3.6630E-01 | 1.7572E-01 | -4.6725E-02 | 5.2768E-03 |
| S8 | -7.3959E-02 | 8.5617E-03 | 4.1611E-02 | -6.1216E-02 | 4.9994E-02 | -2.3401E-02 | 6.1543E-03 | -8.4833E-04 | 4.7752E-05 |
| S9 | -2.5151E-02 | -1.0560E-02 | 4.3986E-03 | -2.3752E-03 | 9.7102E-04 | -2.1361E-04 | 2.5644E-05 | -1.6103E-06 | 4.1656E-08 |
| S10 | -2.2024E-02 | 6.2323E-03 | -7.3684E-03 | 3.3995E-03 | -9.2969E-04 | 1.6277E-04 | -1.7604E-05 | 1.0565E-06 | -2.6639E-08 |
| S11 | -1.7867E-01 | 6.4407E-02 | -1.6309E-02 | 3.0716E-03 | -4.1364E-04 | 3.7855E-05 | -2.2160E-06 | 7.4505E-08 | -1.0920E-09 |
| S12 | -1.6893E-01 | 6.6941E-02 | -2.2072E-02 | 5.0957E-03 | -7.6668E-04 | 7.2967E-05 | -4.2198E-06 | 1.3510E-07 | -1.8346E-09 |
Table 10
Fig. 10A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 5, which indicates a convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 10B shows an astigmatism curve of the optical imaging lens of embodiment 5, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 10C shows a distortion curve of the optical imaging lens of embodiment 5, which represents distortion magnitude values corresponding to different image heights. Fig. 10D shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 5, which represents the deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 10A to 10D, the optical imaging lens provided in embodiment 5 can achieve good imaging quality.
Example 6
An optical imaging lens according to embodiment 6 of the present application is described below with reference to fig. 11 to 12D. Fig. 11 shows a schematic structural diagram of an optical imaging lens according to embodiment 6 of the present application.
As shown in fig. 11, the optical imaging lens sequentially includes, from an object side to an image side, 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 filter E7, and an imaging surface S15.
The first lens element E1 has positive refractive power, wherein an object-side surface S1 thereof is convex, and an image-side surface S2 thereof is concave. The second lens element E2 has negative refractive power, wherein an object-side surface S3 thereof is convex, and an image-side surface S4 thereof is concave. The third lens element E3 has positive refractive power, wherein an object-side surface S5 thereof is convex, and an image-side surface S6 thereof is concave. The fourth lens element E4 has positive refractive power, wherein an object-side surface S7 thereof is concave and an image-side surface S8 thereof is convex. The fifth lens element E5 has positive refractive power, wherein an object-side surface S9 thereof is convex, and an image-side surface S10 thereof is concave. The sixth lens element E6 has negative refractive power, wherein an object-side surface S11 thereof is convex and an image-side surface S12 thereof is concave. The filter E7 has an object side surface S13 and an image side surface S14. Light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging surface S15.
In this example, the total effective focal length f of the optical imaging lens is 5.52mm, the total length TTL of the optical imaging lens is 6.19mm, the half of the diagonal length ImgH of the effective pixel area on the imaging surface S15 of the optical imaging lens is 4.72mm, the half HFOV of the maximum field angle of the optical imaging lens is 40.21 °, and the aperture value Fno of the optical imaging lens is 1.88.
Table 11 shows a basic parameter table of the optical imaging lens of embodiment 6, in which the units of radius of curvature, thickness/distance, and focal length are all millimeters (mm). Table 12 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 6, wherein each of the aspherical surface types can be defined by the formula (1) given in example 1 above.
TABLE 11
Table 12
Fig. 12A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 6, which indicates a convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 12B shows an astigmatism curve of the optical imaging lens of embodiment 6, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 12C shows a distortion curve of the optical imaging lens of embodiment 6, which represents distortion magnitude values corresponding to different image heights. Fig. 12D shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 6, which represents the deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 12A to 12D, the optical imaging lens provided in embodiment 6 can achieve good imaging quality.
Example 7
An optical imaging lens according to embodiment 7 of the present application is described below with reference to fig. 13 to 14D. Fig. 13 shows a schematic configuration diagram of an optical imaging lens according to embodiment 7 of the present application.
As shown in fig. 13, the optical imaging lens sequentially includes, from an object side to an image side, 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 filter E7, and an imaging surface S15.
The first lens element E1 has positive refractive power, wherein an object-side surface S1 thereof is convex, and an image-side surface S2 thereof is concave. The second lens element E2 has negative refractive power, wherein an object-side surface S3 thereof is convex, and an image-side surface S4 thereof is concave. The third lens element E3 has negative refractive power, wherein an object-side surface S5 thereof is concave, and an image-side surface S6 thereof is concave. The fourth lens element E4 has positive refractive power, wherein an object-side surface S7 thereof is concave and an image-side surface S8 thereof is convex. The fifth lens element E5 has positive refractive power, wherein an object-side surface S9 thereof is convex, and an image-side surface S10 thereof is concave. The sixth lens element E6 has negative refractive power, wherein an object-side surface S11 thereof is convex and an image-side surface S12 thereof is concave. The filter E7 has an object side surface S13 and an image side surface S14. Light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging surface S15.
In this example, the total effective focal length f of the optical imaging lens is 5.53mm, the total length TTL of the optical imaging lens is 6.20mm, the half of the diagonal length ImgH of the effective pixel area on the imaging surface S15 of the optical imaging lens is 4.72mm, the half HFOV of the maximum field angle of the optical imaging lens is 40.04 °, and the aperture value Fno of the optical imaging lens is 1.88.
Table 13 shows a basic parameter table of the optical imaging lens of embodiment 7, in which the units of radius of curvature, thickness/distance, and focal length are all millimeters (mm). Table 14 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 7, wherein each of the aspherical surface types can be defined by the formula (1) given in example 1 above.
TABLE 13
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | -1.4799E-03 | 7.0124E-03 | -1.8079E-02 | 2.9129E-02 | -2.9479E-02 | 1.8833E-02 | -7.5123E-03 | 1.7238E-03 | -1.8246E-04 |
| S2 | -2.1798E-02 | 2.3999E-02 | -3.4018E-02 | 6.4768E-02 | -8.8457E-02 | 7.3176E-02 | -3.5854E-02 | 9.5938E-03 | -1.0833E-03 |
| S3 | -5.5898E-02 | 5.1023E-02 | -2.7650E-02 | 4.0710E-02 | -6.8644E-02 | 6.8986E-02 | -3.9187E-02 | 1.1981E-02 | -1.5300E-03 |
| S4 | -2.6540E-02 | 3.4749E-02 | 2.8413E-02 | -1.4831E-01 | 3.5908E-01 | -5.1661E-01 | 4.3882E-01 | -2.0158E-01 | 3.9079E-02 |
| S5 | -4.5811E-02 | 1.4076E-03 | 4.8552E-02 | -2.7620E-01 | 6.4931E-01 | -8.6518E-01 | 6.7223E-01 | -2.8466E-01 | 5.1099E-02 |
| S6 | -6.9762E-02 | 7.0362E-02 | -1.5680E-01 | 2.4850E-01 | -2.7477E-01 | 1.9316E-01 | -7.9811E-02 | 1.6818E-02 | -1.2049E-03 |
| S7 | -8.3118E-02 | 4.5636E-03 | 1.2201E-01 | -2.9656E-01 | 3.8845E-01 | -3.0760E-01 | 1.4623E-01 | -3.8513E-02 | 4.3028E-03 |
| S8 | -7.5800E-02 | 1.2947E-02 | 3.3285E-02 | -4.9939E-02 | 4.0791E-02 | -1.9023E-02 | 4.9627E-03 | -6.7623E-04 | 3.7530E-05 |
| S9 | -2.6368E-02 | -9.2452E-03 | 3.9313E-03 | -2.3165E-03 | 9.7404E-04 | -2.1471E-04 | 2.5611E-05 | -1.5907E-06 | 4.0547E-08 |
| S10 | -2.6560E-02 | 1.0039E-02 | -9.1836E-03 | 3.9547E-03 | -1.0471E-03 | 1.8020E-04 | -1.9347E-05 | 1.1602E-06 | -2.9361E-08 |
| S11 | -1.7850E-01 | 6.3968E-02 | -1.5893E-02 | 2.9123E-03 | -3.8198E-04 | 3.4290E-05 | -1.9867E-06 | 6.6669E-08 | -9.8219E-10 |
| S12 | -1.6505E-01 | 6.4922E-02 | -2.1323E-02 | 4.9200E-03 | -7.4034E-04 | 7.0404E-05 | -4.0622E-06 | 1.2952E-07 | -1.7479E-09 |
TABLE 14
Fig. 14A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 7, which indicates a convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 14B shows an astigmatism curve of the optical imaging lens of embodiment 7, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 14C shows a distortion curve of the optical imaging lens of embodiment 7, which represents distortion magnitude values corresponding to different image heights. Fig. 14D shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 7, which represents the deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 14A to 14D, the optical imaging lens provided in embodiment 7 can achieve good imaging quality.
Example 8
An optical imaging lens according to embodiment 8 of the present application is described below with reference to fig. 15 to 16D. Fig. 15 shows a schematic structural diagram of an optical imaging lens according to embodiment 8 of the present application.
As shown in fig. 15, the optical imaging lens sequentially includes, from an object side to an image side, 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 filter E7, and an imaging surface S15.
The first lens element E1 has positive refractive power, wherein an object-side surface S1 thereof is convex, and an image-side surface S2 thereof is concave. The second lens element E2 has negative refractive power, wherein an object-side surface S3 thereof is convex, and an image-side surface S4 thereof is concave. The third lens element E3 has negative refractive power, wherein an object-side surface S5 thereof is concave, and an image-side surface S6 thereof is concave. The fourth lens element E4 has positive refractive power, wherein an object-side surface S7 thereof is convex, and an image-side surface S8 thereof is convex. The fifth lens element E5 has positive refractive power, wherein an object-side surface S9 thereof is convex, and an image-side surface S10 thereof is concave. The sixth lens element E6 has negative refractive power, wherein an object-side surface S11 thereof is convex and an image-side surface S12 thereof is concave. The filter E7 has an object side surface S13 and an image side surface S14. Light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging surface S15.
In this example, the total effective focal length f of the optical imaging lens is 5.53mm, the total length TTL of the optical imaging lens is 6.20mm, the half of the diagonal length ImgH of the effective pixel area on the imaging surface S15 of the optical imaging lens is 4.72mm, the half HFOV of the maximum field angle of the optical imaging lens is 40.05 °, and the aperture value Fno of the optical imaging lens is 1.88.
Table 15 shows a basic parameter table of the optical imaging lens of example 8, in which the units of radius of curvature, thickness/distance, and focal length are all millimeters (mm). Table 16 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 8, wherein each of the aspherical surface types can be defined by the formula (1) given in example 1 above.
TABLE 15
Table 16
Fig. 16A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 8, which indicates a convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 16B shows an astigmatism curve of the optical imaging lens of embodiment 8, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 16C shows a distortion curve of the optical imaging lens of embodiment 8, which represents distortion magnitude values corresponding to different image heights. Fig. 16D shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 8, which represents the deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 16A to 16D, the optical imaging lens provided in embodiment 8 can achieve good imaging quality.
Example 9
An optical imaging lens according to embodiment 9 of the present application is described below with reference to fig. 17 to 18D. Fig. 17 shows a schematic configuration diagram of an optical imaging lens according to embodiment 9 of the present application.
As shown in fig. 17, the optical imaging lens sequentially includes, from the object side to the image side, 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 filter E7, and an imaging surface S15.
The first lens element E1 has positive refractive power, wherein an object-side surface S1 thereof is convex, and an image-side surface S2 thereof is concave. The second lens element E2 has negative refractive power, wherein an object-side surface S3 thereof is convex, and an image-side surface S4 thereof is concave. The third lens element E3 has positive refractive power, wherein an object-side surface S5 thereof is convex, and an image-side surface S6 thereof is concave. The fourth lens element E4 has positive refractive power, wherein an object-side surface S7 thereof is convex, and an image-side surface S8 thereof is concave. The fifth lens element E5 has positive refractive power, wherein an object-side surface S9 thereof is convex, and an image-side surface S10 thereof is concave. The sixth lens element E6 has negative refractive power, wherein an object-side surface S11 thereof is convex and an image-side surface S12 thereof is concave. The filter E7 has an object side surface S13 and an image side surface S14. Light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging surface S15.
In this example, the total effective focal length f of the optical imaging lens is 5.52mm, the total length TTL of the optical imaging lens is 6.20mm, the half of the diagonal length ImgH of the effective pixel area on the imaging surface S15 of the optical imaging lens is 4.72mm, the half HFOV of the maximum field angle of the optical imaging lens is 40.16 °, and the aperture value Fno of the optical imaging lens is 1.88.
Table 17 shows a basic parameter table of the optical imaging lens of embodiment 9, in which the units of radius of curvature, thickness/distance, and focal length are all millimeters (mm). Table 18 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 9, wherein each of the aspherical surface types can be defined by the formula (1) given in example 1 above.
TABLE 17
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | -1.9647E-03 | 9.2367E-03 | -2.6472E-02 | 4.6095E-02 | -4.9734E-02 | 3.3492E-02 | -1.3831E-02 | 3.2155E-03 | -3.3026E-04 |
| S2 | -2.0080E-02 | 1.7840E-02 | -1.3237E-02 | 1.6949E-02 | -2.1777E-02 | 1.6972E-02 | -7.7097E-03 | 1.8805E-03 | -1.9168E-04 |
| S3 | -5.3457E-02 | 4.2246E-02 | 7.7523E-03 | -5.2284E-02 | 7.6902E-02 | -6.8843E-02 | 3.8462E-02 | -1.2017E-02 | 1.6061E-03 |
| S4 | -3.1187E-02 | 6.8881E-02 | -1.4458E-01 | 3.7709E-01 | -6.2412E-01 | 6.2667E-01 | -3.6787E-01 | 1.1492E-01 | -1.4132E-02 |
| S5 | -4.7631E-02 | 2.8993E-02 | -1.0185E-01 | 2.1411E-01 | -3.3202E-01 | 3.4275E-01 | -2.2220E-01 | 8.0798E-02 | -1.2462E-02 |
| S6 | -5.7131E-02 | 5.0157E-02 | -1.0112E-01 | 1.3793E-01 | -1.3511E-01 | 8.3131E-02 | -2.7718E-02 | 3.2445E-03 | 2.9885E-04 |
| S7 | -7.8491E-02 | 4.7672E-03 | 1.1277E-01 | -2.6542E-01 | 3.3057E-01 | -2.4758E-01 | 1.1112E-01 | -2.7639E-02 | 2.9215E-03 |
| S8 | -7.7426E-02 | 1.7965E-02 | 2.5246E-02 | -4.2974E-02 | 3.5667E-02 | -1.6447E-02 | 4.2203E-03 | -5.6627E-04 | 3.1064E-05 |
| S9 | -2.6942E-02 | -7.3058E-03 | 3.0410E-03 | -2.6990E-03 | 1.3324E-03 | -3.1817E-04 | 4.0459E-05 | -2.6731E-06 | 7.2628E-08 |
| S10 | -3.3905E-02 | 1.7976E-02 | -1.3480E-02 | 5.3058E-03 | -1.3130E-03 | 2.1400E-04 | -2.2133E-05 | 1.3009E-06 | -3.2720E-08 |
| S11 | -1.7948E-01 | 6.4763E-02 | -1.6252E-02 | 2.9964E-03 | -3.9230E-04 | 3.4910E-05 | -1.9977E-06 | 6.6191E-08 | -9.6495E-10 |
| S12 | -1.5835E-01 | 6.1466E-02 | -1.9998E-02 | 4.5852E-03 | -6.8949E-04 | 6.5925E-05 | -3.8464E-06 | 1.2466E-07 | -1.7182E-09 |
TABLE 18
Fig. 18A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 9, which indicates a convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 18B shows an astigmatism curve of the optical imaging lens of embodiment 9, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 18C shows a distortion curve of the optical imaging lens of embodiment 9, which represents distortion magnitude values corresponding to different image heights. Fig. 18D shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 9, which represents the deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 18A to 18D, the optical imaging lens provided in embodiment 9 can achieve good imaging quality.
In summary, examples 1 to 9 each satisfy the relationship shown in table 19.
TABLE 19
The application also provides an imaging device, wherein the electronic photosensitive element can be a photosensitive coupling element (CCD) or a complementary metal oxide semiconductor element (CMOS). The imaging device may be a stand alone imaging device such as a digital camera or an imaging module integrated on a mobile electronic device such as a cell phone. The imaging device is equipped with the optical imaging lens described above.
The above description is only illustrative of the preferred embodiments of the present application and of the principles of the technology employed. It will be appreciated by persons skilled in the art that the scope of the application referred to in the present application is not limited to the specific combinations of the technical features described above, but also covers other technical features formed by any combination of the technical features described above or their equivalents without departing from the inventive concept. Such as the above-mentioned features and the technical features disclosed in the present application (but not limited to) having similar functions are replaced with each other.
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