CN117406394A - Image pickup lens - Google Patents
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- CN117406394A CN117406394A CN202311456069.0A CN202311456069A CN117406394A CN 117406394 A CN117406394 A CN 117406394A CN 202311456069 A CN202311456069 A CN 202311456069A CN 117406394 A CN117406394 A CN 117406394A
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- 238000003384 imaging method Methods 0.000 claims abstract description 208
- 230000003287 optical effect Effects 0.000 claims abstract description 54
- 230000004075 alteration Effects 0.000 description 24
- 201000009310 astigmatism Diseases 0.000 description 16
- 238000010586 diagram Methods 0.000 description 16
- 238000004519 manufacturing process Methods 0.000 description 7
- 230000035945 sensitivity Effects 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
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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
- G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B30/00—Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
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- Optics & Photonics (AREA)
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Abstract
The application relates to an imaging lens, which sequentially comprises from an object side to an image side along an optical axis: a first lens having positive optical power; a second lens having negative optical power; a third lens having positive optical power; a fourth lens having negative optical power; a fifth lens having positive optical power; a sixth lens having negative optical power. The total effective focal length f of the imaging lens and the maximum field angle FOV of the imaging lens satisfy: 3.ltoreq.f.tan (FOV/3) <4; and the effective radius R3 of the object side surface of the second lens and the effective radius R6 of the image side surface of the third lens satisfy: -1.0< R3/R6< -0.5.
Description
Statement of divisional application
The present application is a divisional application of chinese invention patent application with the title of "image capture lens" and application number 202011389744.9, filed on 12/02/2020.
Technical Field
The present application relates to the field of optical elements, and in particular, to an imaging lens.
Background
With the high-speed development of the field of smart phones in recent years, the requirements of smart phones on imaging lenses thereof are also increasing, and in order to meet the market demands, the imaging lenses are required to be developed towards the trend of large image planes and ultra-thin. The large image surface means that the imaging lens has high resolution, and the ultra-thin imaging lens can be matched with the smart phone better, but the requirements are difficult to meet by the traditional five-piece imaging lens.
Therefore, in order to meet the use requirements of people on the imaging lens of the smart phone, it is highly desirable to design a six-piece imaging lens with ultra-thin and large image surface.
Disclosure of Invention
In one aspect, the present application provides an imaging lens sequentially including, from an object side to an image side along an optical axis: a first lens having positive optical power; a second lens having optical power; a third lens having optical power; a fourth lens having optical power; a fifth lens having positive optical power; a sixth lens having negative optical power; the distance TTL between the object side surface of the first lens and the imaging surface of the imaging lens on the optical axis and the total effective focal length of the imaging lens can be satisfied: imgH 2/(TTL f) <1.0, 0.8; and the effective focal length f2 of the second lens, the effective focal length f3 of the third lens, and the effective focal length f4 of the fourth lens may satisfy: -1.0< f3/f2-f3/f4< -0.5.
In some embodiments, the effective focal length f3 of the third lens and the effective focal length f4 of the fourth lens may satisfy: -1.2< f4/f3< -0.9.
In some embodiments, the effective focal length f1 of the first lens and the effective focal length f5 of the fifth lens may satisfy: f1/f5 is more than or equal to 1.0 and less than or equal to 1.2.
In some embodiments, the total effective focal length f of the imaging lens and the effective focal length f6 of the sixth lens may satisfy: -2.0< f/f6< -1.5.
In some embodiments, the total effective focal length f of the imaging lens, the radius of curvature R3 of the object-side surface of the second lens, and the radius of curvature R4 of the image-side surface of the second lens may satisfy: 0.7< f/(R3-R4) <1.2.
In some embodiments, the radius of curvature R3 of the object-side surface of the second lens and the radius of curvature R6 of the image-side surface of the third lens may satisfy: -1.0< R3/R6< -0.5.
In some embodiments, the total effective focal length f of the imaging lens and the radius of curvature R7 of the object side surface of the fourth lens may satisfy: 0<f/R7<0.3.
In some embodiments, the total effective focal length f of the imaging lens and the radius of curvature R11 of the object side surface of the sixth lens may satisfy: -1.0< f/R11<0.
In some embodiments, the radius of curvature R8 of the image side of the fourth lens and the radius of curvature R9 of the object side of the fifth lens may satisfy: R8/R9 is more than or equal to 1.0 and less than or equal to 1.5.
In some embodiments, the radius of curvature R9 of the object-side surface of the fifth lens and the radius of curvature R10 of the image-side surface of the fifth lens may satisfy: 1.5< (R9-R10)/(R9+R10) <3.0.
In some embodiments, the total effective focal length f of the imaging lens and the maximum field angle FOV of the imaging lens may satisfy: f tan (FOV/3). Gtoreq.3.
In some embodiments, the total effective focal length f of the imaging lens and the separation distance T56 of the fifth lens and the sixth lens on the optical axis may satisfy: 6<f/T56<8.
In another aspect, the present application provides an imaging lens including, in order from an object side to an image side along an optical axis: a first lens having positive optical power; a second lens having optical power; a third lens having optical power; a fourth lens having optical power; a fifth lens having positive optical power; a sixth lens having negative optical power; the total effective focal length f of the imaging lens and the maximum field angle FOV of the imaging lens can be as follows: f tan (FOV/3) is equal to or greater than 3; and the effective radius R3 of the object side surface of the second lens and the effective radius R6 of the image side surface of the third lens can satisfy: -1.0< R3/R6< -0.5.
In some embodiments, the half of the diagonal length ImgH of the effective pixel area on the imaging surface of the imaging lens, the distance TTL between the object side surface of the first lens and the imaging surface of the imaging lens on the optical axis, and the total effective focal length of the imaging lens may satisfy: imgH 2/(TTL f) <1.0, 0.8. Ltoreq.ImgH 2.
In some embodiments, the effective focal length f2 of the second lens, the effective focal length f3 of the third lens, and the effective focal length f4 of the fourth lens may satisfy: -1.0< f3/f2-f3/f4< -0.5.
In some embodiments, the effective focal length f3 of the third lens and the effective focal length f4 of the fourth lens may satisfy: -1.2< f4/f3< -0.9.
In some embodiments, the effective focal length f1 of the first lens and the effective focal length f5 of the fifth lens may satisfy: f1/f5 is more than or equal to 1.0 and less than or equal to 1.2.
In some embodiments, the total effective focal length f of the imaging lens and the effective focal length f6 of the sixth lens may satisfy: -2.0< f/f6< -1.5.
In some embodiments, the total effective focal length f of the imaging lens, the radius of curvature R3 of the object-side surface of the second lens, and the radius of curvature R4 of the image-side surface of the second lens may satisfy: 0.7< f/(R3-R4) <1.2.
In some embodiments, the total effective focal length f of the imaging lens and the radius of curvature R7 of the object side surface of the fourth lens may satisfy: 0<f/R7<0.3.
In some embodiments, the total effective focal length f of the imaging lens and the radius of curvature R11 of the object side surface of the sixth lens may satisfy: -1.0< f/R11<0.
In some embodiments, the radius of curvature R8 of the image side of the fourth lens and the radius of curvature R9 of the object side of the fifth lens may satisfy: R8/R9 is more than or equal to 1.0 and less than or equal to 1.5.
In some embodiments, the radius of curvature R9 of the object-side surface of the fifth lens and the radius of curvature R10 of the image-side surface of the fifth lens may satisfy: 1.5< (R9-R10)/(R9+R10) <3.0.
In some embodiments, the total effective focal length f of the imaging lens and the separation distance T56 of the fifth lens and the sixth lens on the optical axis may satisfy: 6<f/T56<8.
In another aspect, the present application provides an electronic device including an imaging lens provided according to the present application and an imaging element for converting an optical image formed by the imaging lens into an electrical signal.
The six lenses are adopted, and the optical power and the surface shape of each lens are reasonably distributed, and the optical total length, the image height and other characteristics of the imaging lens are controlled, so that the imaging lens can have at least one beneficial effect of miniaturization, large image surface, ultra-thin performance, good imaging effect and the like.
Drawings
Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments, taken in conjunction with the accompanying drawings. In the drawings:
fig. 1 shows a schematic configuration diagram of an imaging lens according to embodiment 1 of the present application;
fig. 2A to 2C show an on-axis chromatic aberration curve, an astigmatism curve, and a distortion curve of the imaging lens of embodiment 1, respectively;
fig. 3 shows a schematic configuration diagram of an imaging lens according to embodiment 2 of the present application;
fig. 4A to 4C show an on-axis chromatic aberration curve, an astigmatism curve, and a distortion curve of the imaging lens of embodiment 2, respectively;
fig. 5 shows a schematic configuration diagram of an imaging lens according to embodiment 3 of the present application;
fig. 6A to 6C show an on-axis chromatic aberration curve, an astigmatism curve, and a distortion curve of the imaging lens of embodiment 3, respectively;
fig. 7 shows a schematic configuration diagram of an imaging lens according to embodiment 4 of the present application;
fig. 8A to 8C show an on-axis chromatic aberration curve, an astigmatism curve, and a distortion curve of the imaging lens of embodiment 4, respectively;
fig. 9 shows a schematic configuration diagram of an imaging lens according to embodiment 5 of the present application;
fig. 10A to 10C show an on-axis chromatic aberration curve, an astigmatism curve, and a distortion curve of the imaging lens of embodiment 5, respectively;
fig. 11 shows a schematic configuration diagram of an imaging lens according to embodiment 6 of the present application;
fig. 12A to 12C show an on-axis chromatic aberration curve, an astigmatism curve, and a distortion curve of the imaging lens of embodiment 6, respectively;
fig. 13 shows a schematic configuration diagram of an imaging lens according to embodiment 7 of the present application;
fig. 14A to 14C show an on-axis chromatic aberration curve, an astigmatism curve, and a distortion curve of the imaging lens of embodiment 7, respectively;
fig. 15 shows a schematic configuration diagram of an imaging lens according to embodiment 8 of the present application; and
fig. 16A to 16C show an on-axis chromatic aberration curve, an astigmatism curve, and a distortion curve of the imaging lens of embodiment 8, respectively.
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 these detailed description are merely illustrative of exemplary embodiments of the application and are 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, then 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 subject is referred to as the object side of the lens, and the surface of each lens closest to the imaging side 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 present application, use of "may" means "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, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
The features, principles, and other aspects of the present application are described in detail below.
The imaging lens according to the exemplary embodiment of the present application may include six lenses having optical power, which are a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens, respectively. The six lenses are arranged in order from the object side to the image side along the optical axis of the imaging lens, and an air space can be arranged between any two adjacent lenses.
In an exemplary embodiment, the first lens may have positive optical power; the second lens may have optical power; the third lens may have optical power; the fourth lens may have optical power; the fifth lens may have positive optical power; and the sixth lens may have negative optical power. The rationality of the structure of the camera lens can be ensured by reasonably matching the focal power and the surface of each lens in the optical system.
In an exemplary embodiment, half of the diagonal length ImgH of the effective pixel area on the imaging surface of the imaging lens, the distance TTL of the object side surface of the first lens to the imaging surface of the imaging lens on the optical axis, and the total effective focal length of the imaging lens may satisfy: imgH 2/(TTL f) <1.0, 0.8. Ltoreq.ImgH 2. Satisfies 0.8.ltoreq.ImgH2/(TTL. Times.f) <1.0, can enlarge the optical effective surface, reduce the overall optical height, and is favorable for realizing the ultrathin characteristic. Specifically, imgH, TTL, and f may further satisfy: imgH 2/(TTL f) 0.81.ltoreq.ImgH <0.95.
In an exemplary embodiment, the effective focal length f2 of the second lens, the effective focal length f3 of the third lens, and the effective focal length f4 of the fourth lens may satisfy: -1.0< f3/f2-f3/f4< -0.5. By controlling the effective focal lengths of the second lens, the third lens and the fourth lens to meet-1.0 < f3/f2-f3/f4< -0.5, the second lens, the third lens and the fourth lens can be better matched with each other, and a good imaging effect is achieved. More specifically, f2, f3, and f4 may further satisfy: -0.9< f3/f2-f3/f4< -0.6.
In an exemplary embodiment, the effective focal length f3 of the third lens and the effective focal length f4 of the fourth lens may satisfy: -1.2< f4/f3< -0.9. Meets the requirement of-1.2 f4/f3< -0.9, can reduce the sensitivity degree of the third lens to the refractive index of the material, and is beneficial to the processing and manufacturing of the third lens. More specifically, f3 and f4 may further satisfy: -1.16< f4/f3< -0.95.
In an exemplary embodiment, the effective focal length f1 of the first lens and the effective focal length f5 of the fifth lens may satisfy: f1/f5 is more than or equal to 1.0 and less than or equal to 1.2. Satisfies 1.0.ltoreq.f1/f5 <1.2, can improve the on-axis chromatic aberration of the camera lens, and is favorable for ensuring the authenticity of the color. More specifically, f1 and f5 further satisfy: f1/f5 is less than or equal to 1.05 and less than 1.15.
In an exemplary embodiment, the total effective focal length f of the imaging lens and the effective focal length f6 of the sixth lens may satisfy: -2.0< f/f6< -1.5. Meets-2.0 < f/f6< -1.5, and can effectively reduce the distortion value of the imaging lens. More specifically, f and f6 may further satisfy: -1.80< f/f6< -1.55.
In an exemplary embodiment, the total effective focal length f of the imaging lens, the radius of curvature R3 of the object side surface of the second lens, and the radius of curvature R4 of the image side surface of the second lens may satisfy: 0.7< f/(R3-R4) <1.2. The sensitivity of the second lens to the thickness can be reduced by satisfying 0.7< f/(R3-R4) <1.2, which is favorable for the processing and manufacturing of the second lens. More specifically, f, R3, and R4 may further satisfy: 0.7< f/(R3-R4) <1.15.
In an exemplary embodiment, the radius of curvature R3 of the object side surface of the second lens and the radius of curvature R6 of the image side surface of the third lens may satisfy: -1.0< R3/R6< -0.5. Satisfies-1.0 < R3/R6< -0.5, and can improve the transverse chromatic aberration of the camera lens, thereby effectively reducing the chromatic aberration range of the visible wave band. More specifically, R3 and R6 may further satisfy: -0.95< R3/R6< -0.55.
In an exemplary embodiment, the total effective focal length f of the imaging lens and the radius of curvature R7 of the object side surface of the fourth lens may satisfy: 0<f/R7<0.3. The requirement of 0<f/R7 is less than 0.3, the sensitivity of the fourth lens to the aspheric surface type can be reduced, and the processing and manufacturing of the fourth lens are facilitated. More specifically, f and R7 may further satisfy: 0.05< f/R7<0.2.
In an exemplary embodiment, the total effective focal length f of the imaging lens and the radius of curvature R11 of the object side surface of the sixth lens may satisfy: -1.0< f/R11<0. The sensitivity of the sixth lens to the aspheric surface type can be reduced by satisfying-1.0 < f/R11<0, and the processing and manufacturing of the sixth lens are facilitated. More specifically, f and R11 may further satisfy: -0.8< f/R11<0.
In an exemplary embodiment, the radius of curvature R8 of the image side of the fourth lens and the radius of curvature R9 of the object side of the fifth lens may satisfy: R8/R9 is more than or equal to 1.0 and less than or equal to 1.5. Satisfies R8/R9<1.5, can reduce the sensitivity of the air space between the fourth lens and the fifth lens to the thickness, and is beneficial to the assembly production of the photographic lens. More specifically, R8 and R9 may further satisfy: R8/R9 is more than or equal to 1.0 and less than or equal to 1.4.
In an exemplary embodiment, the radius of curvature R9 of the object side surface of the fifth lens and the radius of curvature R10 of the image side surface of the fifth lens may satisfy: 1.5< (R9-R10)/(R9+R10) <3.0. Satisfying 1.5< (R9-R10)/(R9+R10) <3.0, the sensitivity of the fifth lens to the aspherical surface type can be reduced, and the processing and manufacturing of the fifth lens are facilitated. More specifically, R9 and R10 may further satisfy: 1.6< (R9-R10)/(R9+R10) <2.9.
In an exemplary embodiment, the total effective focal length f of the imaging lens and the maximum field angle FOV of the imaging lens may satisfy: f tan (FOV/3). Gtoreq.3. Satisfying f (FOV/3) is more than or equal to 3, can reduce the off-axis chromatic aberration of the camera lens, reduce the optical distortion of the system, and is favorable for obtaining better imaging quality. More specifically, f and FOV can further satisfy: 3.ltoreq.f.tan (FOV/3) <4.
In an exemplary embodiment, the total effective focal length f of the imaging lens and the interval distance T56 between the fifth lens and the sixth lens on the optical axis may satisfy: 6<f/T56<8. The requirements of 6<f/T56<8 are met, the on-axis chromatic aberration of the imaging lens can be improved, and the risk of color cast is reduced. More specifically, f and T56 further satisfy: 6.5< f/T56<7.5.
In an exemplary embodiment, the image pickup lens may further include a diaphragm. The diaphragm may be provided at an appropriate position as required. For example, a stop may be provided before the first lens. Optionally, the above-mentioned image pickup 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 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, the volume of the imaging lens can be effectively reduced, and the processability of the imaging lens can be improved, so that the imaging lens is more beneficial to production and processing and is applicable to portable electronic products. The imaging lens configured as described above can have characteristics such as miniaturization, ultra-thin, large image plane, and good imaging quality.
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 mirrors 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 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 a better radius of curvature characteristic, and has an advantage of improving distortion aberration, i.e., improving astigmatic aberration. By adopting the aspherical lens, aberration occurring during 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 imaging lens can be varied to achieve the various results and advantages described in the present specification without departing from the technical solutions claimed herein. For example, although six lenses are described as an example in the embodiment, the imaging lens is not limited to include six lenses. The camera lens may also include other numbers of lenses, if desired.
Specific examples of the imaging lens applicable to the above-described embodiments are further described below with reference to the drawings.
Example 1
An imaging lens according to embodiment 1 of the present application is described below with reference to fig. 1 to 2C. Fig. 1 shows a schematic configuration diagram of an imaging lens according to embodiment 1 of the present application.
As shown in fig. 1, the image capturing lens sequentially includes, from an object side to an image side: stop STO, first lens E1, second lens E2, third lens E3, fourth lens E4, fifth lens E5, sixth lens E6, filter E7, and imaging plane 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 convex. 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 convex. The sixth lens element E6 has negative refractive power, wherein an object-side surface S11 thereof is concave, 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.
The basic parameter table of the imaging lens of embodiment 1 is shown in table 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 imaging lens is 5.26mm, and the maximum field angle FOV of the imaging lens is 90.5 °.
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:
wherein x is the distance vector height from the vertex of the aspheric surface when the aspheric surface is at the position with the height h along the optical axis direction; c is the paraxial curvature of the aspheric surface, c=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 aspherical i-th order. Table 2 and Table 3 show the higher order coefficients A4, A6, A8, A10, A12, A14, A16, A18, A20, A22, A24, A26, A28 and A30 that can be used for each of the aspherical mirrors S1-S12 in example 1.
TABLE 2
| Face number | A18 | A20 | A22 | A24 | A26 | A28 | A30 |
| S1 | -8.6725E+00 | 8.6571E+00 | -5.8959E+00 | 2.7153E+00 | -8.1055E-01 | 1.4174E-01 | -1.1032E-02 |
| S2 | 1.1544E+02 | -9.4832E+01 | 5.5663E+01 | -2.2710E+01 | 6.1030E+00 | -9.6858E-01 | 6.8555E-02 |
| S3 | -3.4533E+02 | 3.2183E+02 | -2.1527E+02 | 1.0068E+02 | -3.1243E+01 | 5.7787E+00 | -4.8201E-01 |
| S4 | -3.4247E+02 | 3.6642E+02 | -2.7565E+02 | 1.4231E+02 | -4.7857E+01 | 9.4038E+00 | -8.1454E-01 |
| S5 | 1.4365E+01 | -2.3965E+01 | 2.3102E+01 | -1.4062E+01 | 5.3462E+00 | -1.1626E+00 | 1.1061E-01 |
| S6 | -3.0047E+01 | 2.4071E+01 | -1.3704E+01 | 5.4135E+00 | -1.4107E+00 | 2.1804E-01 | -1.5135E-02 |
| S7 | 4.4230E-01 | -3.6996E-01 | 1.8793E-01 | -6.2147E-02 | 1.3149E-02 | -1.6236E-03 | 8.9197E-05 |
| S8 | 8.4129E-02 | -3.6111E-02 | 1.0351E-02 | -1.9736E-03 | 2.4050E-04 | -1.6956E-05 | 5.2616E-07 |
| S9 | -1.2484E-03 | 2.7393E-04 | -4.4852E-05 | 5.1861E-06 | -3.9435E-07 | 1.7552E-08 | -3.4514E-10 |
| S10 | -3.4419E-04 | 4.2260E-05 | -3.3112E-06 | 1.4736E-07 | -2.1722E-09 | -8.5916E-11 | 3.0680E-12 |
| S11 | 2.7948E-06 | -3.1006E-07 | 2.3352E-08 | -1.1796E-09 | 3.8385E-11 | -7.2901E-13 | 6.1505E-15 |
| S12 | 1.7007E-05 | -1.3058E-06 | 7.2596E-08 | -2.8393E-09 | 7.3988E-11 | -1.1520E-12 | 8.0986E-15 |
TABLE 3 Table 3
Fig. 2A shows an on-axis chromatic aberration curve of the imaging lens of embodiment 1, which indicates a convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 2B shows an astigmatism curve of the imaging lens of embodiment 1, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 2C shows a distortion curve of the imaging lens of embodiment 1, which represents distortion magnitude values corresponding to different image heights. As can be seen from fig. 2A to 2C, the imaging lens provided in embodiment 1 can achieve good imaging quality.
Example 2
An imaging lens according to embodiment 2 of the present application is described below with reference to fig. 3 to 4C. Fig. 3 shows a schematic configuration diagram of an imaging lens according to embodiment 2 of the present application.
As shown in fig. 3, the image capturing lens sequentially includes, from an object side to an image side: stop STO, first lens E1, second lens E2, third lens E3, fourth lens E4, fifth lens E5, sixth lens E6, filter E7, and imaging plane 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 convex. 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 convex. The sixth lens element E6 has negative refractive power, wherein an object-side surface S11 thereof is concave, 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 imaging lens is 5.18mm, and the maximum field angle FOV of the imaging lens is 90.2 °.
Table 4 shows basic parameters of the imaging lens of embodiment 2, in which the units of radius of curvature, thickness, and focal length are all millimeters (mm). Table 5 and Table 6 show the higher order coefficients A4, A6, A8, A10, A12, A14, A16, A18, A20, A22, A24, A26, A28 and A30 that can be used for each of the aspherical mirrors S1-S12 in example 2. Wherein each aspherical surface profile can be defined by the formula (1) given in the above-described embodiment 1.
TABLE 4 Table 4
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | -2.4337E-03 | 2.8053E-02 | -1.1399E-01 | 2.2748E-01 | 9.0685E-02 | -1.7731E+00 | 5.0239E+00 |
| S2 | -3.1477E-02 | -6.8260E-02 | 7.9326E-01 | -4.5774E+00 | 1.6994E+01 | -4.2857E+01 | 7.5820E+01 |
| S3 | -5.1037E-02 | 7.8181E-02 | -3.5810E-01 | 1.8411E+00 | -6.1353E+00 | 1.3773E+01 | -2.1474E+01 |
| S4 | -2.4077E-02 | 1.5134E-01 | -1.3080E+00 | 8.9497E+00 | -4.0281E+01 | 1.2414E+02 | -2.6942E+02 |
| S5 | -5.0273E-02 | 1.3909E-01 | -1.2195E+00 | 6.9473E+00 | -2.7102E+01 | 7.3873E+01 | -1.4338E+02 |
| S6 | -3.8189E-02 | -1.2942E-01 | 1.0095E+00 | -4.6722E+00 | 1.4092E+01 | -2.9263E+01 | 4.3034E+01 |
| S7 | -8.6380E-02 | -2.3652E-02 | 1.3784E-01 | -2.4069E-01 | 1.9049E-01 | 5.9485E-02 | -3.3128E-01 |
| S8 | -8.5147E-02 | -4.7703E-03 | 4.9286E-02 | -5.8017E-02 | 2.9734E-02 | 8.3249E-03 | -2.5326E-02 |
| S9 | -2.4798E-03 | -3.7468E-02 | 4.9258E-02 | -4.8771E-02 | 3.5761E-02 | -1.8900E-02 | 7.1941E-03 |
| S10 | 2.7778E-02 | -2.9791E-02 | 3.4121E-02 | -2.8349E-02 | 1.6408E-02 | -6.3799E-03 | 1.6545E-03 |
| S11 | -1.5626E-01 | 6.7135E-02 | -1.8170E-02 | 2.7356E-03 | 8.3172E-05 | -1.4202E-04 | 3.4655E-05 |
| S12 | -1.8181E-01 | 1.0137E-01 | -4.6662E-02 | 1.6446E-02 | -4.3132E-03 | 8.3492E-04 | -1.1933E-04 |
TABLE 5
| Face number | A18 | A20 | A22 | A24 | A26 | A28 | A30 |
| S1 | -8.0227E+00 | 8.3309E+00 | -5.8343E+00 | 2.7425E+00 | -8.3082E-01 | 1.4673E-01 | -1.1485E-02 |
| S2 | -9.5775E+01 | 8.6804E+01 | -5.5989E+01 | 2.5072E+01 | -7.4048E+00 | 1.2962E+00 | -1.0181E-01 |
| S3 | 2.3483E+01 | -1.7873E+01 | 9.1950E+00 | -2.9903E+00 | 5.2001E-01 | -2.1231E-02 | -4.3737E-03 |
| S4 | 4.1807E+02 | -4.6570E+02 | 3.6928E+02 | -2.0338E+02 | 7.3929E+01 | -1.5945E+01 | 1.5451E+00 |
| S5 | 2.0019E+02 | -2.0123E+02 | 1.4408E+02 | -7.1586E+01 | 2.3421E+01 | -4.5319E+00 | 3.9245E-01 |
| S6 | -4.5471E+01 | 3.4626E+01 | -1.8827E+01 | 7.1254E+00 | -1.7825E+00 | 2.6480E-01 | -1.7680E-02 |
| S7 | 4.0997E-01 | -2.9436E-01 | 1.3805E-01 | -4.3080E-02 | 8.6628E-03 | -1.0185E-03 | 5.3260E-05 |
| S8 | 1.9939E-02 | -8.9803E-03 | 2.5723E-03 | -4.7625E-04 | 5.5269E-05 | -3.6574E-06 | 1.0528E-07 |
| S9 | -1.9944E-03 | 4.0373E-04 | -5.8883E-05 | 5.9958E-06 | -4.0258E-07 | 1.5959E-08 | -2.8223E-10 |
| S10 | -2.8555E-04 | 3.2131E-05 | -2.1884E-06 | 6.7105E-08 | 1.3935E-09 | -1.7497E-10 | 4.0141E-12 |
| S11 | -4.8736E-06 | 4.5554E-07 | -2.9313E-08 | 1.2903E-09 | -3.7241E-11 | 6.3654E-13 | -4.8915E-15 |
| S12 | 1.2587E-05 | -9.7425E-07 | 5.4509E-08 | -2.1408E-09 | 5.5890E-11 | -8.6975E-13 | 6.0981E-15 |
TABLE 6
Fig. 4A shows an on-axis chromatic aberration curve of the imaging lens of embodiment 2, which indicates a convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 4B shows an astigmatism curve of the imaging lens of embodiment 2, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 4C shows a distortion curve of the imaging lens of embodiment 2, which represents distortion magnitude values corresponding to different image heights. As can be seen from fig. 4A to 4C, the imaging lens provided in embodiment 2 can achieve good imaging quality.
Example 3
An imaging lens according to embodiment 3 of the present application is described below with reference to fig. 5 to 6C. Fig. 5 shows a schematic configuration diagram of an imaging lens according to embodiment 3 of the present application.
As shown in fig. 5, the image capturing lens sequentially includes, from an object side to an image side: stop STO, first lens E1, second lens E2, third lens E3, fourth lens E4, fifth lens E5, sixth lens E6, filter E7, and imaging plane 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 convex. 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 convex. The sixth lens element E6 has negative refractive power, wherein an object-side surface S11 thereof is concave, 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 imaging lens is 6.28mm, and the maximum field angle FOV of the imaging lens is 89.3 °.
Table 7 shows basic parameters of the imaging lens of embodiment 3, in which the units of radius of curvature, thickness, and focal length are all millimeters (mm). Table 8 and Table 9 show the higher order coefficients A4, A6, A8, A10, A12, A14, A16, A18, A20, A22, A24, A26, A28 and A30 that can be used for each of the aspherical mirrors S1-S12 in example 3. Wherein each aspherical surface profile can be defined by the formula (1) given in the above-described embodiment 1.
TABLE 7
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 8.8977E-04 | -4.9764E-03 | 3.4729E-02 | -1.2426E-01 | 2.7941E-01 | -4.2547E-01 | 4.5603E-01 |
| S2 | -1.8526E-02 | -9.8631E-03 | 1.1254E-01 | -4.8331E-01 | 1.3035E+00 | -2.3510E+00 | 2.9400E+00 |
| S3 | -2.5630E-02 | 2.7354E-03 | 7.2103E-02 | -2.9171E-01 | 7.7988E-01 | -1.4429E+00 | 1.8838E+00 |
| S4 | -1.3451E-02 | 5.4763E-02 | -2.9706E-01 | 1.3252E+00 | -3.9784E+00 | 8.3235E+00 | -1.2421E+01 |
| S5 | -2.0332E-02 | -1.2830E-02 | 5.7684E-02 | -1.6480E-01 | 2.6311E-01 | -2.0563E-01 | -4.1164E-02 |
| S6 | -2.1857E-02 | -2.7838E-02 | 1.4266E-01 | -4.5686E-01 | 9.6096E-01 | -1.3959E+00 | 1.4349E+00 |
| S7 | -4.5652E-02 | -1.9880E-02 | 6.2588E-02 | -9.1223E-02 | 8.7730E-02 | -5.7937E-02 | 2.5639E-02 |
| S8 | -4.5903E-02 | -9.3364E-03 | 2.2294E-02 | -1.6988E-02 | 6.3359E-03 | 2.0643E-04 | -1.5496E-03 |
| S9 | 9.4485E-04 | -1.8775E-02 | 1.5357E-02 | -9.2210E-03 | 4.2171E-03 | -1.4373E-03 | 3.6113E-04 |
| S10 | 1.9529E-02 | -1.6608E-02 | 1.2594E-02 | -7.0845E-03 | 2.8588E-03 | -7.9721E-04 | 1.5321E-04 |
| S11 | -8.1163E-02 | 2.1036E-02 | -2.9834E-03 | 9.4874E-05 | 6.5159E-05 | -1.6711E-05 | 2.2234E-06 |
| S12 | -9.8822E-02 | 3.6870E-02 | -1.1451E-02 | 2.7348E-03 | -4.8637E-04 | 6.3814E-05 | -6.1783E-06 |
TABLE 8
TABLE 9
Fig. 6A shows an on-axis chromatic aberration curve of the 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 imaging lens of embodiment 3, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 6C shows a distortion curve of the imaging lens of embodiment 3, which represents distortion magnitude values corresponding to different image heights. As can be seen from fig. 6A to 6C, the imaging lens provided in embodiment 3 can achieve good imaging quality.
Example 4
An imaging lens according to embodiment 4 of the present application is described below with reference to fig. 7 to 8C. Fig. 7 shows a schematic configuration diagram of an imaging lens according to embodiment 4 of the present application.
As shown in fig. 7, the image capturing lens sequentially includes, from an object side to an image side: stop STO, first lens E1, second lens E2, third lens E3, fourth lens E4, fifth lens E5, sixth lens E6, filter E7, and imaging plane 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 convex. 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 convex. The sixth lens element E6 has negative refractive power, wherein an object-side surface S11 thereof is concave, 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 imaging lens is 5.24mm, and the maximum field angle FOV of the imaging lens is 90.6 °.
Table 10 shows basic parameters of the imaging lens of embodiment 4, in which the units of radius of curvature, thickness, and focal length are all millimeters (mm). Table 11 and Table 12 show the higher order coefficients A4, A6, A8, A10, A12, A14, A16, A18, A20, A22, A24, A26, A28 and A30 that can be used for each of the aspherical mirrors S1-S12 in example 4. Wherein each aspherical surface profile can be defined by the formula (1) given in the above-described embodiment 1.
Table 10
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | -4.2843E-03 | 6.6717E-02 | -5.0710E-01 | 2.4768E+00 | -8.0114E+00 | 1.7766E+01 | -2.7694E+01 |
| S2 | -3.2638E-02 | -3.0532E-02 | 4.1696E-01 | -2.3914E+00 | 8.8619E+00 | -2.2391E+01 | 3.9771E+01 |
| S3 | -4.6544E-02 | 4.6171E-02 | -8.7709E-02 | 4.0987E-01 | -1.1155E+00 | 1.5741E+00 | -3.9731E-01 |
| S4 | -2.7707E-02 | 2.7387E-01 | -2.7152E+00 | 1.8899E+01 | -8.6581E+01 | 2.7212E+02 | -6.0304E+02 |
| S5 | -4.0592E-02 | -1.9025E-03 | 1.4385E-01 | -1.1778E+00 | 4.8829E+00 | -1.2810E+01 | 2.2546E+01 |
| S6 | -4.7008E-02 | -6.9351E-03 | 1.3455E-01 | -8.2870E-01 | 2.9772E+00 | -7.1244E+00 | 1.1798E+01 |
| S7 | -8.8848E-02 | -1.0242E-02 | 9.2346E-02 | -1.6962E-01 | 1.7095E-01 | -5.9609E-02 | -9.3069E-02 |
| S8 | -8.6118E-02 | 4.2363E-03 | 1.2725E-02 | 1.8259E-02 | -7.1749E-02 | 1.0200E-01 | -8.7306E-02 |
| S9 | -1.8945E-03 | -3.1846E-02 | 3.3704E-02 | -2.8671E-02 | 1.9356E-02 | -9.7756E-03 | 3.6433E-03 |
| S10 | 2.8570E-02 | -3.1883E-02 | 3.9429E-02 | -3.5398E-02 | 2.1753E-02 | -8.9705E-03 | 2.5116E-03 |
| S11 | -1.7008E-01 | 8.0477E-02 | -2.6928E-02 | 6.8346E-03 | -1.2610E-03 | 1.6795E-04 | -1.6342E-05 |
| S12 | -1.9656E-01 | 1.1337E-01 | -5.3217E-02 | 1.8881E-02 | -4.9379E-03 | 9.4785E-04 | -1.3391E-04 |
TABLE 11
| Face number | A18 | A20 | A22 | A24 | A26 | A28 | A30 |
| S1 | 3.0780E+01 | -2.4479E+01 | 1.3811E+01 | -5.3924E+00 | 1.3845E+00 | -2.1012E-01 | 1.4274E-02 |
| S2 | -5.0504E+01 | 4.6055E+01 | -2.9907E+01 | 1.3489E+01 | -4.0136E+00 | 7.0800E-01 | -5.6048E-02 |
| S3 | -2.7514E+00 | 5.7048E+00 | -5.9595E+00 | 3.8026E+00 | -1.4973E+00 | 3.3565E-01 | -3.2860E-02 |
| S4 | 9.5629E+02 | -1.0889E+03 | 8.8263E+02 | -4.9670E+02 | 1.8436E+02 | -4.0566E+01 | 4.0066E+00 |
| S5 | -2.7200E+01 | 2.2461E+01 | -1.2385E+01 | 4.2879E+00 | -8.0098E-01 | 4.2794E-02 | 5.4737E-03 |
| S6 | -1.3796E+01 | 1.1473E+01 | -6.7425E+00 | 2.7361E+00 | -7.2907E-01 | 1.1474E-01 | -8.0780E-03 |
| S7 | 1.6980E-01 | -1.4155E-01 | 7.3411E-02 | -2.4915E-02 | 5.4057E-03 | -6.8194E-04 | 3.8074E-05 |
| S8 | 4.9692E-02 | -1.9327E-02 | 5.1425E-03 | -9.1918E-04 | 1.0541E-04 | -7.0016E-06 | 2.0464E-07 |
| S9 | -1.0177E-03 | 2.1368E-04 | -3.2961E-05 | 3.5762E-06 | -2.5557E-07 | 1.0726E-08 | -1.9949E-10 |
| S10 | -4.8594E-04 | 6.5652E-05 | -6.1809E-06 | 3.9767E-07 | -1.6680E-08 | 4.1128E-10 | -4.5249E-12 |
| S11 | 1.1806E-06 | -6.4438E-08 | 2.7009E-09 | -8.7298E-11 | 2.0982E-12 | -3.3246E-14 | 2.5390E-16 |
| S12 | 1.3937E-05 | -1.0632E-06 | 5.8583E-08 | -2.2648E-09 | 5.8178E-11 | -8.9064E-13 | 6.1425E-15 |
Table 12
Fig. 8A shows an on-axis chromatic aberration curve of the imaging lens of embodiment 4, which indicates a convergent focus deviation after light rays of different wavelengths pass through the lens. Fig. 8B shows an astigmatism curve of the imaging lens of embodiment 4, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 8C shows a distortion curve of the imaging lens of embodiment 4, which represents distortion magnitude values corresponding to different image heights. As can be seen from fig. 8A to 8C, the imaging lens provided in embodiment 4 can achieve good imaging quality.
Example 5
An imaging lens according to embodiment 5 of the present application is described below with reference to fig. 9 to 10C. Fig. 9 shows a schematic configuration diagram of an imaging lens according to embodiment 5 of the present application.
As shown in fig. 9, the image capturing lens sequentially includes, from an object side to an image side: stop STO, first lens E1, second lens E2, third lens E3, fourth lens E4, fifth lens E5, sixth lens E6, filter E7, and imaging plane 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 convex. 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 convex. The sixth lens element E6 has negative refractive power, wherein an object-side surface S11 thereof is concave, 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 imaging lens is 5.24mm, and the maximum field angle FOV of the imaging lens is 90.6 °.
Table 13 shows basic parameters of the imaging lens of example 5, in which the units of radius of curvature, thickness, and focal length are all millimeters (mm). Table 14 and Table 15 show the higher order coefficients A4, A6, A8, A10, A12, A14, A16, A18, A20, A22, A24, A26, A28 and A30 that can be used for each of the aspherical mirrors S1-S12 in example 5. Wherein each aspherical surface profile can be defined by the formula (1) given in the above-described embodiment 1.
TABLE 13
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | -3.3824E-03 | 5.5480E-02 | -4.2956E-01 | 2.1463E+00 | -7.0747E+00 | 1.5917E+01 | -2.5080E+01 |
| S2 | -3.1856E-02 | -4.7079E-02 | 5.8381E-01 | -3.3693E+00 | 1.2507E+01 | -3.1541E+01 | 5.5772E+01 |
| S3 | -4.6293E-02 | 4.0842E-02 | -3.8461E-02 | 1.2851E-01 | -4.7627E-02 | -1.2533E+00 | 4.9687E+00 |
| S4 | -2.7481E-02 | 2.6811E-01 | -2.6397E+00 | 1.8271E+01 | -8.3201E+01 | 2.5990E+02 | -5.7249E+02 |
| S5 | -4.0071E-02 | -5.8310E-03 | 1.6167E-01 | -1.2138E+00 | 4.8325E+00 | -1.2273E+01 | 2.0889E+01 |
| S6 | -4.7365E-02 | -4.5414E-03 | 1.3951E-01 | -9.2727E-01 | 3.4436E+00 | -8.3643E+00 | 1.3940E+01 |
| S7 | -9.1296E-02 | 3.4591E-03 | 4.2621E-02 | -4.2647E-02 | -5.9942E-02 | 2.4197E-01 | -3.7882E-01 |
| S8 | -8.9492E-02 | 1.5590E-02 | -1.3819E-02 | 6.2301E-02 | -1.2382E-01 | 1.4629E-01 | -1.1472E-01 |
| S9 | -4.4870E-03 | -2.7690E-02 | 2.8754E-02 | -2.4434E-02 | 1.6781E-02 | -8.6550E-03 | 3.2896E-03 |
| S10 | 2.7135E-02 | -2.9514E-02 | 3.6740E-02 | -3.3431E-02 | 2.0778E-02 | -8.6255E-03 | 2.4217E-03 |
| S11 | -1.6632E-01 | 7.9447E-02 | -2.7918E-02 | 7.8010E-03 | -1.6663E-03 | 2.7224E-04 | -3.4506E-05 |
| S12 | -1.9211E-01 | 1.1093E-01 | -5.2304E-02 | 1.8631E-02 | -4.8875E-03 | 9.4068E-04 | -1.3323E-04 |
TABLE 14
| Face number | A18 | A20 | A22 | A24 | A26 | A28 | A30 |
| S1 | 2.8097E+01 | -2.2476E+01 | 1.2735E+01 | -4.9881E+00 | 1.2837E+00 | -1.9515E-01 | 1.3274E-02 |
| S2 | -7.0374E+01 | 6.3675E+01 | -4.0980E+01 | 1.8302E+01 | -5.3886E+00 | 9.4014E-01 | -7.3583E-02 |
| S3 | -1.0136E+01 | 1.3070E+01 | -1.1217E+01 | 6.4146E+00 | -2.3535E+00 | 5.0178E-01 | -4.7295E-02 |
| S4 | 9.0257E+02 | -1.0220E+03 | 8.2401E+02 | -4.6141E+02 | 1.7046E+02 | -3.7348E+01 | 3.6743E+00 |
| S5 | -2.4188E+01 | 1.8852E+01 | -9.4523E+00 | 2.6851E+00 | -2.3644E-01 | -7.2966E-02 | 1.5971E-02 |
| S6 | -1.6332E+01 | 1.3574E+01 | -7.9598E+00 | 3.2194E+00 | -8.5435E-01 | 1.3383E-01 | -9.3748E-03 |
| S7 | 3.6721E-01 | -2.4068E-01 | 1.0911E-01 | -3.3876E-02 | 6.8903E-03 | -8.2754E-04 | 4.4461E-05 |
| S8 | 6.2134E-02 | -2.3462E-02 | 6.1364E-03 | -1.0871E-03 | 1.2428E-04 | -8.2665E-06 | 2.4285E-07 |
| S9 | -9.3610E-04 | 1.9993E-04 | -3.1288E-05 | 3.4331E-06 | -2.4741E-07 | 1.0447E-08 | -1.9518E-10 |
| S10 | -4.6851E-04 | 6.3155E-05 | -5.9215E-06 | 3.7881E-07 | -1.5775E-08 | 3.8573E-10 | -4.2040E-12 |
| S11 | 3.4097E-06 | -2.5996E-07 | 1.4914E-08 | -6.1852E-10 | 1.7399E-11 | -2.9568E-13 | 2.2834E-15 |
| S12 | 1.3900E-05 | -1.0628E-06 | 5.8696E-08 | -2.2741E-09 | 5.8544E-11 | -8.9808E-13 | 6.2060E-15 |
TABLE 15
Fig. 10A shows an on-axis chromatic aberration curve of the imaging lens of embodiment 5, which indicates a convergent focus deviation after light rays of different wavelengths pass through the lens. Fig. 10B shows an astigmatism curve of the imaging lens of embodiment 5, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 10C shows a distortion curve of the imaging lens of embodiment 5, which represents distortion magnitude values corresponding to different image heights. As can be seen from fig. 10A to 10C, the imaging lens provided in embodiment 5 can achieve good imaging quality.
Example 6
An imaging lens according to embodiment 6 of the present application is described below with reference to fig. 11 to 12C. Fig. 11 shows a schematic configuration diagram of an imaging lens according to embodiment 6 of the present application.
As shown in fig. 11, the image capturing lens includes, in order from an object side to an image side: stop STO, first lens E1, second lens E2, third lens E3, fourth lens E4, fifth lens E5, sixth lens E6, filter E7, and imaging plane 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 convex. 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 convex. The sixth lens element E6 has negative refractive power, wherein an object-side surface S11 thereof is concave, 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 imaging lens is 5.18mm, and the maximum field angle FOV of the imaging lens is 90.2 °.
Table 16 shows basic parameters of the imaging lens of example 6, in which the units of radius of curvature, thickness, and focal length are all millimeters (mm). Table 17 and Table 18 show the higher order coefficients A4, A6, A8, A10, A12, A14, A16, A18, A20, A22, A24, A26, A28 and A30 that can be used for each of the aspherical mirrors S1-S12 in example 6. Wherein each aspherical surface profile can be defined by the formula (1) given in the above-described embodiment 1.
Table 16
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | -3.3765E-03 | 3.9911E-02 | -1.9875E-01 | 6.0896E-01 | -1.0514E+00 | 5.8409E-01 | 1.5920E+00 |
| S2 | -3.1158E-02 | -6.8671E-02 | 7.7896E-01 | -4.4267E+00 | 1.6274E+01 | -4.0794E+01 | 7.1925E+01 |
| S3 | -5.1029E-02 | 7.6682E-02 | -3.2375E-01 | 1.5312E+00 | -4.6269E+00 | 9.1660E+00 | -1.2027E+01 |
| S4 | -2.3493E-02 | 1.4730E-01 | -1.3037E+00 | 9.1085E+00 | -4.1654E+01 | 1.2995E+02 | -2.8464E+02 |
| S5 | -5.2975E-02 | 1.8308E-01 | -1.6099E+00 | 9.1469E+00 | -3.5452E+01 | 9.5977E+01 | -1.8505E+02 |
| S6 | -3.7901E-02 | -1.3612E-01 | 1.0567E+00 | -4.8669E+00 | 1.4605E+01 | -3.0171E+01 | 4.4138E+01 |
| S7 | -8.9106E-02 | -8.5275E-03 | 6.7285E-02 | -2.3867E-02 | -2.5880E-01 | 7.0532E-01 | -9.8955E-01 |
| S8 | -8.7435E-02 | 8.6433E-04 | 3.6352E-02 | -3.5474E-02 | 7.8871E-04 | 3.5120E-02 | -4.3069E-02 |
| S9 | -3.9400E-03 | -3.5563E-02 | 4.8064E-02 | -4.8553E-02 | 3.6027E-02 | -1.9175E-02 | 7.3318E-03 |
| S10 | 2.7127E-02 | -3.1494E-02 | 3.9265E-02 | -3.4370E-02 | 2.0570E-02 | -8.2891E-03 | 2.2635E-03 |
| S11 | -1.5688E-01 | 6.7216E-02 | -1.7485E-02 | 2.1380E-03 | 3.1942E-04 | -1.9688E-04 | 4.2875E-05 |
| S12 | -1.8243E-01 | 1.0252E-01 | -4.7611E-02 | 1.6921E-02 | -4.4694E-03 | 8.7036E-04 | -1.2503E-04 |
TABLE 17
| Face number | A18 | A20 | A22 | A24 | A26 | A28 | A30 |
| S1 | -4.4531E+00 | 5.6722E+00 | -4.4297E+00 | 2.2295E+00 | -7.0792E-01 | 1.2939E-01 | -1.0396E-02 |
| S2 | -9.0705E+01 | 8.2173E+01 | -5.3022E+01 | 2.3766E+01 | -7.0277E+00 | 1.2320E+00 | -9.6921E-02 |
| S3 | 1.0038E+01 | -4.4189E+00 | -2.3923E-01 | 1.5467E+00 | -9.0461E-01 | 2.4168E-01 | -2.5989E-02 |
| S4 | 4.4477E+02 | -4.9793E+02 | 3.9618E+02 | -2.1865E+02 | 7.9546E+01 | -1.7153E+01 | 1.6604E+00 |
| S5 | 2.5671E+02 | -2.5642E+02 | 1.8247E+02 | -9.0101E+01 | 2.9301E+01 | -5.6365E+00 | 4.8533E-01 |
| S6 | -4.6404E+01 | 3.5167E+01 | -1.9035E+01 | 7.1744E+00 | -1.7879E+00 | 2.6469E-01 | -1.7617E-02 |
| S7 | 8.9197E-01 | -5.4865E-01 | 2.3384E-01 | -6.8206E-02 | 1.3020E-02 | -1.4673E-03 | 7.4035E-05 |
| S8 | 2.8335E-02 | -1.1812E-02 | 3.2464E-03 | -5.8680E-04 | 6.7151E-05 | -4.4112E-06 | 1.2668E-07 |
| S9 | -2.0385E-03 | 4.1330E-04 | -6.0313E-05 | 6.1404E-06 | -4.1204E-07 | 1.6321E-08 | -2.8837E-10 |
| S10 | -4.2347E-04 | 5.4449E-05 | -4.7524E-06 | 2.7145E-07 | -9.3553E-09 | 1.6076E-10 | -7.0315E-13 |
| S11 | -5.6986E-06 | 5.1114E-07 | -3.1741E-08 | 1.3515E-09 | -3.7777E-11 | 6.2565E-13 | -4.6599E-15 |
| S12 | 1.3250E-05 | -1.0300E-06 | 5.7879E-08 | -2.2832E-09 | 5.9875E-11 | -9.3609E-13 | 6.5949E-15 |
TABLE 18
Fig. 12A shows an on-axis chromatic aberration curve of the 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 imaging lens of embodiment 6, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 12C shows a distortion curve of the imaging lens of embodiment 6, which represents distortion magnitude values corresponding to different image heights. As can be seen from fig. 12A to 12C, the imaging lens provided in embodiment 6 can achieve good imaging quality.
Example 7
An imaging lens according to embodiment 7 of the present application is described below with reference to fig. 13 to 14C. Fig. 13 shows a schematic configuration diagram of an imaging lens according to embodiment 7 of the present application.
As shown in fig. 13, the image capturing lens includes, in order from an object side to an image side: stop STO, first lens E1, second lens E2, third lens E3, fourth lens E4, fifth lens E5, sixth lens E6, filter E7, and imaging plane 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 convex. 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 convex. The sixth lens element E6 has negative refractive power, wherein an object-side surface S11 thereof is concave, 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 imaging lens is 6.46mm, and the maximum field angle FOV of the imaging lens is 87.6 °.
Table 19 shows basic parameters of the imaging lens of embodiment 7, in which the units of radius of curvature, thickness, and focal length are all millimeters (mm). Table 20 and Table 21 show the higher order coefficients A4, A6, A8, A10, A12, A14, A16, A18, A20, A22, A24, A26, A28 and A30 that can be used for each of the aspherical mirrors S1-S12 in example 7. Wherein each aspherical surface profile can be defined by the formula (1) given in the above-described embodiment 1.
TABLE 19
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 2.1778E-03 | -1.7395E-02 | 1.0252E-01 | -3.5301E-01 | 7.8682E-01 | -1.1992E+00 | 1.2909E+00 |
| S2 | -1.9683E-02 | 6.8653E-03 | 1.4289E-02 | -1.2205E-01 | 4.1624E-01 | -8.4546E-01 | 1.1374E+00 |
| S3 | -2.3259E-02 | -1.8078E-02 | 1.9519E-01 | -7.3860E-01 | 1.8291E+00 | -3.1152E+00 | 3.7492E+00 |
| S4 | -1.8782E-02 | 1.3642E-01 | -9.2627E-01 | 4.2593E+00 | -1.2924E+01 | 2.6982E+01 | -3.9811E+01 |
| S5 | -1.3800E-02 | -7.9748E-02 | 4.2778E-01 | -1.4486E+00 | 3.2379E+00 | -4.9947E+00 | 5.4432E+00 |
| S6 | -2.2935E-02 | -2.4859E-02 | 1.3081E-01 | -4.3998E-01 | 9.7204E-01 | -1.4723E+00 | 1.5647E+00 |
| S7 | -3.8411E-02 | -5.0721E-02 | 1.3790E-01 | -2.1659E-01 | 2.3616E-01 | -1.8514E-01 | 1.0536E-01 |
| S8 | -3.8735E-02 | -2.7981E-02 | 4.9055E-02 | -4.3097E-02 | 2.4673E-02 | -9.2430E-03 | 2.0594E-03 |
| S9 | 8.4506E-03 | -2.7375E-02 | 2.1336E-02 | -1.2243E-02 | 5.3600E-03 | -1.7655E-03 | 4.3325E-04 |
| S10 | 2.5777E-02 | -2.0439E-02 | 1.4057E-02 | -7.5208E-03 | 2.9943E-03 | -8.4364E-04 | 1.6635E-04 |
| S11 | -8.1667E-02 | 2.3461E-02 | -4.1985E-03 | 4.5019E-04 | -7.2363E-06 | -5.8985E-06 | 1.0268E-06 |
| S12 | -1.0663E-01 | 4.2574E-02 | -1.3891E-02 | 3.4294E-03 | -6.2366E-04 | 8.3124E-05 | -8.1436E-06 |
Table 20
| Face number | A18 | A20 | A22 | A24 | A26 | A28 | A30 |
| S1 | -9.9840E-01 | 5.5716E-01 | -2.2240E-01 | 6.1913E-02 | -1.1413E-02 | 1.2515E-03 | -6.1775E-05 |
| S2 | -1.0616E+00 | 7.0028E-01 | -3.2604E-01 | 1.0492E-01 | -2.2214E-02 | 2.7835E-03 | -1.5632E-04 |
| S3 | -3.2396E+00 | 2.0185E+00 | -8.9964E-01 | 2.7985E-01 | -5.7724E-02 | 7.0964E-03 | -3.9357E-04 |
| S4 | 4.2105E+01 | -3.2019E+01 | 1.7350E+01 | -6.5322E+00 | 1.6232E+00 | -2.3929E-01 | 1.5843E-02 |
| S5 | -4.2353E+00 | 2.3500E+00 | -9.1685E-01 | 2.4372E-01 | -4.1564E-02 | 4.0325E-03 | -1.6450E-04 |
| S6 | -1.1833E+00 | 6.3934E-01 | -2.4488E-01 | 6.4898E-02 | -1.1313E-02 | 1.1664E-03 | -5.3869E-05 |
| S7 | -4.3511E-02 | 1.2921E-02 | -2.6949E-03 | 3.7693E-04 | -3.2346E-05 | 1.4002E-06 | -1.5722E-08 |
| S8 | -1.4769E-04 | -5.8068E-05 | 2.1021E-05 | -3.3393E-06 | 2.9780E-07 | -1.4431E-08 | 2.9632E-10 |
| S9 | -7.9283E-05 | 1.0770E-05 | -1.0658E-06 | 7.4154E-08 | -3.4154E-09 | 9.3061E-11 | -1.1321E-12 |
| S10 | -2.3119E-05 | 2.2789E-06 | -1.5873E-07 | 7.6547E-09 | -2.4366E-10 | 4.6131E-12 | -3.9389E-14 |
| S11 | -9.5045E-08 | 5.7254E-09 | -2.3526E-10 | 6.5784E-12 | -1.2017E-13 | 1.2958E-15 | -6.2629E-18 |
| S12 | 5.8731E-07 | -3.1039E-08 | 1.1852E-09 | -3.1771E-11 | 5.6639E-13 | -6.0225E-15 | 2.8875E-17 |
Table 21
Fig. 14A shows an on-axis chromatic aberration curve of the 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 imaging lens of embodiment 7, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 14C shows a distortion curve of the imaging lens of embodiment 7, which represents distortion magnitude values corresponding to different image heights. As can be seen from fig. 14A to 14C, the imaging lens provided in embodiment 7 can achieve good imaging quality.
Example 8
An imaging lens according to embodiment 8 of the present application is described below with reference to fig. 15 to 16C. Fig. 15 shows a schematic configuration diagram of an imaging lens according to embodiment 8 of the present application.
As shown in fig. 15, the image capturing lens includes, in order from an object side to an image side: stop STO, first lens E1, second lens E2, third lens E3, fourth lens E4, fifth lens E5, sixth lens E6, filter E7, and imaging plane 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 convex. 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 convex. The sixth lens element E6 has negative refractive power, wherein an object-side surface S11 thereof is concave, 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 imaging lens is 6.40mm, and the maximum field angle FOV of the imaging lens is 88.1 °.
Table 22 shows basic parameters of the imaging lens of embodiment 8, in which the units of radius of curvature, thickness, and focal length are all millimeters (mm). Table 23 and Table 24 show the higher order coefficients A4, A6, A8, A10, A12, A14, A16, A18, A20, A22, A24, A26, A28 and A30 that can be used for each of the aspherical mirrors S1-S12 in example 8. Wherein each aspherical surface profile can be defined by the formula (1) given in the above-described embodiment 1.
Table 22
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 3.0567E-03 | -2.5432E-02 | 1.4596E-01 | -5.0050E-01 | 1.1182E+00 | -1.7111E+00 | 1.8491E+00 |
| S2 | -2.1980E-02 | 2.8833E-02 | -1.2005E-01 | 3.7816E-01 | -7.9499E-01 | 1.1557E+00 | -1.1864E+00 |
| S3 | -2.4473E-02 | -1.2331E-02 | 1.5041E-01 | -5.3424E-01 | 1.2451E+00 | -2.0042E+00 | 2.2884E+00 |
| S4 | -1.6501E-02 | 9.1643E-02 | -5.4659E-01 | 2.3654E+00 | -6.8566E+00 | 1.3826E+01 | -1.9869E+01 |
| S5 | -1.4297E-02 | -8.0073E-02 | 4.2348E-01 | -1.4261E+00 | 3.1762E+00 | -4.8877E+00 | 5.3188E+00 |
| S6 | -2.6390E-02 | -1.2497E-02 | 8.4731E-02 | -3.1810E-01 | 7.4182E-01 | -1.1605E+00 | 1.2597E+00 |
| S7 | -4.8284E-02 | -2.1012E-02 | 5.6339E-02 | -5.3146E-02 | 8.6085E-03 | 3.6072E-02 | -4.7190E-02 |
| S8 | -5.0322E-02 | -1.3481E-02 | 3.1490E-02 | -2.3814E-02 | 7.1410E-03 | 2.7891E-03 | -3.9142E-03 |
| S9 | 1.7931E-03 | -2.6781E-02 | 2.6463E-02 | -1.8297E-02 | 8.9434E-03 | -3.1124E-03 | 7.8218E-04 |
| S10 | 2.3650E-02 | -2.2697E-02 | 1.9713E-02 | -1.2039E-02 | 4.9808E-03 | -1.4057E-03 | 2.7578E-04 |
| S11 | -8.7998E-02 | 3.6008E-02 | -1.0561E-02 | 2.2514E-03 | -3.3472E-04 | 3.4829E-05 | -2.5561E-06 |
| S12 | -1.1224E-01 | 5.0681E-02 | -1.7879E-02 | 4.5981E-03 | -8.5335E-04 | 1.1495E-04 | -1.1333E-05 |
Table 23
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Table 24
Fig. 16A shows an on-axis chromatic aberration curve of the imaging lens of embodiment 8, which indicates a convergent focus deviation after light rays of different wavelengths pass through the lens. Fig. 16B shows an astigmatism curve of the imaging lens of embodiment 8, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 16C shows a distortion curve of the imaging lens of embodiment 8, which represents distortion magnitude values corresponding to different image heights. As can be seen from fig. 16A to 16C, the imaging lens provided in embodiment 8 can achieve good imaging quality.
In summary, examples 1 to 8 each satisfy the relationship shown in table 25.
| Condition/example | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| ImgH^2/(TTL*f) | 0.90 | 0.86 | 0.83 | 0.88 | 0.88 | 0.86 | 0.81 | 0.83 |
| f*tan(FOV/3) | 3.06 | 3.00 | 3.60 | 3.05 | 3.05 | 3.00 | 3.61 | 3.61 |
| f3/f2-f3/f4 | -0.83 | -0.59 | -0.57 | -0.66 | -0.65 | -0.61 | -0.57 | -0.65 |
| f4/f3 | -1.06 | -1.11 | -1.10 | -1.14 | -1.13 | -1.11 | -1.05 | -0.98 |
| f1/f5 | 1.09 | 1.10 | 1.10 | 1.07 | 1.07 | 1.10 | 1.07 | 1.09 |
| f/f6 | -1.71 | -1.59 | -1.59 | -1.60 | -1.59 | -1.59 | -1.70 | -1.75 |
| f/(R3-R4) | 0.75 | 0.74 | 0.85 | 0.71 | 0.71 | 0.78 | 0.94 | 1.11 |
| R3/R6 | -0.60 | -0.88 | -0.76 | -0.87 | -0.84 | -0.84 | -0.73 | -0.60 |
| f/R7 | 0.07 | 0.09 | 0.09 | 0.08 | 0.09 | 0.11 | 0.07 | 0.16 |
| f/R11 | -0.01 | -0.20 | -0.22 | -0.10 | -0.13 | -0.20 | -0.35 | -0.66 |
| R8/R9 | 1.19 | 1.05 | 1.12 | 1.09 | 1.09 | 1.01 | 1.16 | 1.32 |
| (R9-R10)/(R9+R10) | 1.80 | 1.77 | 1.93 | 1.78 | 1.81 | 1.78 | 1.97 | 2.78 |
| f/T56 | 7.08 | 6.84 | 6.81 | 6.91 | 6.91 | 6.83 | 7.00 | 6.94 |
Table 25
The present application also provides an image pickup apparatus, in which the electron photosensitive element may be a photosensitive coupling element (CCD) or a complementary metal oxide semiconductor element (CMOS). The imaging device may be a stand-alone image capturing apparatus such as a digital camera, or may be an image capturing module integrated on a mobile electronic apparatus such as a cellular phone. The image pickup apparatus is equipped with the image pickup lens described above.
The foregoing description is only of the preferred embodiments of the present application and is presented as a description of the principles of the technology being utilized. It will be appreciated by persons skilled in the art that the scope of the invention referred to in this application is not limited to the specific combinations of features described above, but it is intended to cover other embodiments in which any combination of features described above or equivalents thereof is possible without departing from the spirit of the invention. Such as the above-described features and technical features having similar functions (but not limited to) disclosed in the present application are replaced with each other.
Claims (10)
1. The imaging lens is characterized by comprising, in order from an object side to an image side along an optical axis:
a first lens having positive optical power;
a second lens having negative optical power;
a third lens having positive optical power;
a fourth lens having negative optical power;
a fifth lens having positive optical power;
a sixth lens having negative optical power;
wherein, the total effective focal length f of the imaging lens and the maximum field angle FOV of the imaging lens satisfy: 3.ltoreq.f.tan (FOV/3) <4; and
an effective radius R3 of the object side surface of the second lens and an effective radius R6 of the image side surface of the third lens satisfy: -1.0< R3/R6< -0.5.
2. The imaging lens according to claim 1, wherein a half of a diagonal length ImgH of an effective pixel region on an imaging surface of the imaging lens, a distance TTL on the optical axis from an object side surface of the first lens to the imaging surface of the imaging lens, and a total effective focal length of the imaging lens satisfy: imgH 2/(TTL f) <1.0, 0.8. Ltoreq.ImgH 2.
3. The imaging lens according to claim 1, wherein an effective focal length f2 of the second lens, an effective focal length f3 of the third lens, and an effective focal length f4 of the fourth lens satisfy: -1.0< f3/f2-f3/f4< -0.5.
4. The imaging lens according to claim 1, wherein an effective focal length f3 of the third lens and an effective focal length f4 of the fourth lens satisfy: -1.2< f4/f3< -0.9.
5. The imaging lens according to claim 1, wherein an effective focal length f1 of the first lens and an effective focal length f5 of the fifth lens satisfy: f1/f5 is more than or equal to 1.0 and less than or equal to 1.2.
6. The imaging lens according to claim 1, wherein a total effective focal length f of the imaging lens and an effective focal length f6 of the sixth lens satisfy: -2.0< f/f6< -1.5.
7. The imaging lens according to claim 1, wherein a total effective focal length f of the imaging lens, a radius of curvature R3 of an object side surface of the second lens, and a radius of curvature R4 of an image side surface of the second lens satisfy: 0.7< f/(R3-R4) <1.2.
8. The imaging lens according to claim 1, wherein a total effective focal length f of the imaging lens and a radius of curvature R7 of an object side surface of the fourth lens satisfy: 0<f/R7<0.3.
9. The imaging lens according to claim 1, wherein a total effective focal length f of the imaging lens and a radius of curvature R11 of an object side surface of the sixth lens satisfy: -1.0< f/R11<0.
10. An electronic device comprising the imaging lens according to any one of claims 1 to 9 and an imaging element for converting an optical pattern formed by the imaging lens into an electric signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311456069.0A CN117406394A (en) | 2020-12-02 | 2020-12-02 | Image pickup lens |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311456069.0A CN117406394A (en) | 2020-12-02 | 2020-12-02 | Image pickup lens |
| CN202011389744.9A CN112346219B (en) | 2020-12-02 | 2020-12-02 | Image pickup lens |
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| CN202011389744.9A Division CN112346219B (en) | 2020-12-02 | 2020-12-02 | Image pickup lens |
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| JP6300183B2 (en) * | 2013-04-22 | 2018-03-28 | コニカミノルタ株式会社 | Imaging lens, imaging device, and portable terminal |
| WO2019047505A1 (en) * | 2017-09-07 | 2019-03-14 | 浙江舜宇光学有限公司 | Optical imaging lens |
| JP6408725B1 (en) * | 2017-11-18 | 2018-10-17 | エーエーシー テクノロジーズ ピーティーイー リミテッドＡａｃ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｐｔｅ．Ｌｔｄ． | Shooting optical lens |
| CN111208627A (en) * | 2020-03-03 | 2020-05-29 | 浙江舜宇光学有限公司 | Image pickup lens assembly |
| CN111338060B (en) * | 2020-05-21 | 2020-08-18 | 江西联益光学有限公司 | Optical lens and imaging apparatus |
| CN111399196B (en) * | 2020-06-08 | 2020-08-25 | 瑞声通讯科技(常州)有限公司 | Image pickup optical lens |
| CN213843656U (en) * | 2020-12-02 | 2021-07-30 | 浙江舜宇光学有限公司 | Camera lens and electronic equipment comprising same |
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| CN112346219A (en) | 2021-02-09 |
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