CN108761737B - Optical imaging system - Google Patents
Optical imaging system Download PDFInfo
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- CN108761737B CN108761737B CN201810831541.7A CN201810831541A CN108761737B CN 108761737 B CN108761737 B CN 108761737B CN 201810831541 A CN201810831541 A CN 201810831541A CN 108761737 B CN108761737 B CN 108761737B
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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
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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
The application discloses an optical imaging system, this optical imaging system includes from the object side to the image side along the optical axis in order: the lens includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. The first lens has negative focal power, and the image side surface of the first lens is a concave surface; the second lens has positive focal power; the third lens has positive focal power, and both the object side surface and the image side surface of the third lens are convex surfaces; the fourth lens has focal power; the fifth lens has focal power; the sixth lens has focal power, and the object side surface of the sixth lens is a convex surface and the image side surface of the sixth lens is a concave surface. The maximum effective half aperture DT12 of the image side surface of the first lens and the half of the diagonal length ImgH of the effective pixel area on the imaging surface of the optical imaging system satisfy 0 & lt DT12/ImgH & lt 1.
Description
Technical Field
The present application relates to an optical imaging system, and more particularly, to an optical imaging system including six lenses.
Background
In recent years, imaging lenses provided with a commonly used photosensitive element such as a photosensitive coupling element (CCD) or a complementary metal oxide semiconductor element (CMOS) are widely used in various fields, and these lenses can be applied not only to capture images but also to a spatial localization technique. However, most conventional lenses cannot achieve strict correction of f- θ distortion, and thus cannot achieve high positioning accuracy while obtaining good imaging quality.
Meanwhile, with the improvement of the performance and the reduction of the size of common photosensitive elements such as a CCD (charge coupled device) or a CMOS (complementary metal oxide semiconductor), the number of pixels of the photosensitive elements is increased and the size of the pixels is reduced, so that higher requirements are provided for the high imaging quality and the miniaturization of matched lenses.
Therefore, there is a need for an optical system that can achieve both high imaging quality, positioning accuracy, and miniaturization.
Disclosure of Invention
The present application provides an optical imaging system, such as a wide-angle lens, that may be applicable to portable electronic products and that may address at least one of the above-mentioned shortcomings of the prior art.
One aspect of the present application discloses an optical imaging system, comprising, in order from an object side to an image side along an optical axis: the lens includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. The first lens can have negative focal power, and the image side surface of the first lens can be a concave surface; the second lens may have a positive optical power; the third lens can have positive focal power, and both the object side surface and the image side surface of the third lens can be convex surfaces; the fourth lens has focal power; the fifth lens has focal power; the sixth lens element has a refractive power, and the object-side surface of the sixth lens element can be convex and the image-side surface of the sixth lens element can be concave. The maximum effective half aperture DT12 of the image side surface of the first lens and the half length ImgH of the diagonal line of the effective pixel area on the imaging surface of the optical imaging system can satisfy 0 & lt DT12/ImgH & lt 1.
In one embodiment, the effective focal length f1 of the first lens, the effective focal length f3 of the third lens and the total effective focal length f of the optical imaging system can satisfy 1 < (| f1| + | f3|)/f < 3.
In one embodiment, the effective focal length f4 of the fourth lens and the total effective focal length f of the optical imaging system can satisfy 1 < | f4/f | < 2.
In one embodiment, the effective focal length f4 of the fourth lens, the effective focal length f5 of the fifth lens and the total effective focal length f of the optical imaging system may satisfy 0 < | f4/f + f5/f | < 3.
In one embodiment, the maximum effective half aperture DT11 of the object side surface of the first lens and the maximum effective half aperture DT31 of the object side surface of the third lens may satisfy 0 < DT31/DT11 < 1.
In one embodiment, the central thickness CT1 of the first lens element on the optical axis and the central thickness CT6 of the sixth lens element on the optical axis satisfy 0 < CT1/CT6 < 2.
In one embodiment, a separation distance T34 on the optical axis of the third lens and the fourth lens, a separation distance T45 on the optical axis of the fourth lens and the fifth lens, and a separation distance T56 on the optical axis of the fifth lens and the sixth lens may satisfy 0 < T34/(T45+ T56) < 0.5.
In one embodiment, the radius of curvature R6 of the image-side surface of the third lens and the total effective focal length f of the optical imaging system can satisfy-1.5 < R6/f < 0.
In one embodiment, a radius of curvature R11 of an object-side surface of the sixth lens and a radius of curvature R12 of an image-side surface of the sixth lens may satisfy 0 < R12/R11 < 2.
In one embodiment, the object side surface of the first lens may have at least one inflection point.
In one embodiment, a distance TTL between an object side surface of the first lens element and an imaging surface of the optical imaging system on an optical axis and a half ImgH of a diagonal length of an effective pixel area on the imaging surface of the optical imaging system may satisfy TTL/ImgH < 3.
In one embodiment, the maximum half field angle HFOV for an optical imaging system may satisfy HFOV ≧ 70.
Another aspect of the present application discloses an optical imaging system, in order from an object side to an image side along an optical axis, comprising: the lens includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. The first lens can have negative focal power, and the image side surface of the first lens can be a concave surface; the second lens may have a positive optical power; the third lens can have positive focal power, and both the object side surface and the image side surface of the third lens can be convex surfaces; the fourth lens has focal power; the fifth lens has focal power; the sixth lens element has a refractive power, and the object-side surface of the sixth lens element can be convex and the image-side surface of the sixth lens element can be concave. The effective focal length f1 of the first lens, the effective focal length f3 of the third lens and the total effective focal length f of the optical imaging system can satisfy 1 < (| f1| + | f3|)/f < 3; and the distance TTL from the object side surface of the first lens to the imaging surface of the optical imaging system on the optical axis and the half of the diagonal length ImgH of the effective pixel area on the imaging surface of the optical imaging system can meet the condition that TTL/ImgH is less than 3.
The optical imaging system has at least one beneficial effect of miniaturization, wide angle, high positioning precision, high imaging quality and the like by reasonably distributing the focal power, the surface type, the central thickness of each lens, the on-axis distance between each lens and the like of each lens.
Drawings
Other features, objects, and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments when taken in conjunction with the accompanying drawings. In the drawings:
fig. 1 shows a schematic configuration diagram of an optical imaging system according to embodiment 1 of the present application;
fig. 2A to 2C show an on-axis chromatic aberration curve, an astigmatic curve, and a chromatic aberration of magnification curve, respectively, of the optical imaging system of embodiment 1;
fig. 3 shows a schematic configuration diagram of an optical imaging system according to embodiment 2 of the present application;
fig. 4A to 4C show an on-axis chromatic aberration curve, an astigmatic curve, and a chromatic aberration of magnification curve, respectively, of the optical imaging system of embodiment 2;
fig. 5 shows a schematic configuration diagram of an optical imaging system according to embodiment 3 of the present application;
fig. 6A to 6C show an on-axis chromatic aberration curve, an astigmatic curve, and a chromatic aberration of magnification curve, respectively, of the optical imaging system of embodiment 3;
fig. 7 shows a schematic configuration diagram of an optical imaging system according to embodiment 4 of the present application;
fig. 8A to 8C show an on-axis chromatic aberration curve, an astigmatism curve, and a chromatic aberration of magnification curve, respectively, of the optical imaging system of embodiment 4;
fig. 9 shows a schematic configuration diagram of an optical imaging system according to embodiment 5 of the present application;
fig. 10A to 10C show an on-axis chromatic aberration curve, an astigmatic curve, and a chromatic aberration of magnification curve, respectively, of the optical imaging system of embodiment 5;
fig. 11 shows a schematic configuration diagram of an optical imaging system according to embodiment 6 of the present application;
fig. 12A to 12C show an on-axis chromatic aberration curve, an astigmatic curve, and a chromatic aberration of magnification curve, respectively, of the optical imaging system of embodiment 6;
fig. 13 is a schematic structural view showing an optical imaging system according to embodiment 7 of the present application;
fig. 14A to 14C show an on-axis chromatic aberration curve, an astigmatism curve, and a chromatic aberration of magnification curve, respectively, of the optical imaging system of embodiment 7;
fig. 15 shows a schematic configuration diagram of an optical imaging system according to embodiment 8 of the present application;
fig. 16A to 16C show an on-axis chromatic aberration curve, an astigmatic curve, and a chromatic aberration of magnification curve, respectively, of the optical imaging system of embodiment 8;
fig. 17 is a schematic structural view showing an optical imaging system according to embodiment 9 of the present application;
fig. 18A to 18C show an on-axis chromatic aberration curve, an astigmatism curve, and a chromatic aberration of magnification curve, respectively, of an optical imaging system of example 9.
Detailed Description
For a better understanding of the present application, various aspects of the present application will be described in more detail with reference to the accompanying drawings. It should be understood that the detailed description is merely illustrative of exemplary embodiments of the present application and does not limit the scope of the present application in any way. Like reference numerals refer to like elements throughout the specification. The expression "and/or" includes any and all combinations of one or more of the associated listed items.
It should be noted that in this specification, the expressions first, second, third, etc. are used only to distinguish one feature from another, and do not represent any limitation on the features. Thus, the first lens discussed below may also be referred to as the second lens or the third lens without departing from the teachings of the present application.
In the drawings, the thickness, size, and shape of the lens have been slightly exaggerated for convenience of explanation. In particular, the shapes of the spherical or aspherical surfaces shown in the drawings are shown by way of example. That is, the shape of the spherical surface or the aspherical surface is not limited to the shape of the spherical surface or the aspherical surface shown in the drawings. The figures are purely diagrammatic and not drawn to scale.
Herein, the paraxial region refers to a region near the optical axis. If the lens surface is convex and the convex position is not defined, it means that the lens surface is convex at least in the paraxial region; if the lens surface is concave and the concave position is not defined, it means that the lens surface is concave at least in the paraxial region. The surface of each lens closest to the object side is called the object side surface of the lens; the surface of each lens closest to the image side is referred to as the image side surface of the lens.
It will be further understood that the terms "comprises," "comprising," "has," "having," "includes" and/or "including," when used in this specification, specify the presence of stated features, elements, and/or components, but do not preclude the presence or addition of one or more other features, elements, components, and/or groups thereof. Moreover, when a statement such as "at least one of" appears after a list of listed features, the entirety of the listed features is modified rather than modifying individual elements in the list. Furthermore, when describing embodiments of the present application, the use of "may" mean "one or more embodiments of the present application. Also, the term "exemplary" is intended to refer to an example or illustration.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
The features, principles, and other aspects of the present application are described in detail below.
The optical imaging system according to an exemplary embodiment of the present application may include, for example, six lenses having optical powers, i.e., 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 sequence from an object side to an image side along an optical axis, and an air space can be formed between any two adjacent lenses.
In an exemplary embodiment, the first lens may have a negative optical power, and the image-side surface thereof may be concave; the second lens may have a positive optical power; the third lens can have positive focal power, and the object side surface of the third lens can be a convex surface, and the image side surface of the third lens can be a convex surface; the fourth lens has positive focal power or negative focal power; the fifth lens has positive focal power or negative focal power; the sixth lens element has positive or negative focal power, and has a convex object-side surface and a concave image-side surface.
The first lens and the second lens with positive focal power are beneficial to increasing the visual angle, simultaneously are beneficial to compressing the light ray incidence angle at the position of the diaphragm, reducing the pupil aberration and improving the imaging quality. The third lens with positive focal power has a convex object-side surface and a convex image-side surface, which is beneficial to reducing the spherical aberration and astigmatism of the system. The fourth lens and the fifth lens with focal power are beneficial to correcting chromatic aberration and improving imaging quality. The sixth lens with focal power has a convex object-side surface and a concave image-side surface, which is beneficial to shortening the total length of the system and realizing the miniaturization of the module.
Optionally, the object side surface of the first lens may have at least one inflection point. The surface type arrangement is beneficial to adjusting the distribution of off-axis light paths, increasing the light inlet quantity of the off-axis field of view of the system in unit time and improving the relative illumination of the off-axis field of view.
In an exemplary embodiment, an optical imaging system according to the present application may satisfy the conditional expression HFOV ≧ 70 °, where HFOV is the largest half field angle of the optical imaging system. More specifically, the HFOV further may satisfy 74.98 ≦ HFOV ≦ 75.01. The HFOV is more than or equal to 70 degrees, which is beneficial to imaging and space positioning in a larger range.
In an exemplary embodiment, the optical imaging system according to the present application may satisfy the conditional expression 1 < (| f1| + | f3|)/f < 3, where f is the total effective focal length of the optical imaging system, the effective focal length of the f1 first lens, and the effective focal length of the f3 third lens. More specifically, f1, and f2 can further satisfy 1.80 ≦ (| f1| + | f3|)/f ≦ 2.60, for example, 2.00 ≦ (| f1| + | f3|)/f ≦ 2.47. The condition 1 < (| f1| + | f3|)/f < 3 is met, the reasonable distribution of the system focal power is facilitated, and the reduction of the tolerance sensitivity of the system is facilitated while the miniaturization of the module is realized.
In an exemplary embodiment, the optical imaging system according to the present application may satisfy the conditional expression 0 < R12/R11 < 2, where R11 is a radius of curvature of the object-side surface of the sixth lens and R12 is a radius of curvature of the image-side surface of the sixth lens. More specifically, R11 and R12 may further satisfy 0.5. ltoreq. R12/R11. ltoreq.1.5, for example, 0.82. ltoreq. R12/R11. ltoreq.1.25. The condition that R12/R11 is more than 0 is satisfied, the total length of the system is favorably shortened, the tolerance sensitivity of the sixth lens is reduced, and the production yield of the optical system is improved.
In an exemplary embodiment, an optical imaging system according to the present application may satisfy the conditional expression 0 < DT12/ImgH < 1, where DT12 is the maximum effective half aperture of the image side surface of the first lens and ImgH is half the diagonal length of the effective pixel area on the imaging surface of the optical imaging system. More specifically, DT12 and ImgH may further satisfy 0.3 ≦ DT12/ImgH ≦ 0.7, e.g., 0.42 ≦ DT12/ImgH ≦ 0.55. The condition formula of 0 < DT12/ImgH < 1 is satisfied, the size of the module in three spatial directions is reduced, and the miniaturization is realized.
In an exemplary embodiment, an optical imaging system according to the present application may satisfy the conditional expression 1 < | f4/f | < 2, where f is an overall effective focal length of the optical imaging system, and f4 is an effective focal length of the fourth lens. More specifically, f and f4 can further satisfy 1.16 ≦ f4/f ≦ 1.82. Satisfying the condition 1 < | f4/f | < 2, is beneficial to obtaining better balance between the lens injection molding manufacturability and the correction system aberration.
In an exemplary embodiment, the optical imaging system according to the present application may satisfy the conditional expression 0 < DT31/DT11 < 1, where DT11 is the maximum effective half aperture of the object-side surface of the first lens and DT31 is the maximum effective half aperture of the object-side surface of the third lens. More specifically, DT11 and DT31 may further satisfy 0.1 ≦ DT31/DT11 ≦ 0.6, e.g., 0.24 ≦ DT31/DT11 ≦ 0.41. The condition that DT31/DT11 is more than 0 and less than 1 is met, the visual angle can be expanded, the light entering from the off-axis visual field can be adjusted, and the imaging quality is improved.
In an exemplary embodiment, an optical imaging system according to the present application may satisfy the conditional expression-1.5 < R6/f < 0, where f is an overall effective focal length of the optical imaging system and R6 is a radius of curvature of an image-side surface of the third lens. More specifically, f and R6 can further satisfy-1.2. ltoreq. R6/f. ltoreq-0.4, for example, -0.93. ltoreq. R6/f. ltoreq-0.59. The condition that R6/f is more than-1.5 and less than 0 is met, the total length of the system is favorably shortened, and the tolerance sensitivity of the third lens is reduced.
In an exemplary embodiment, the optical imaging system according to the present application may satisfy the conditional expression 0 < T34/(T45+ T56) < 0.5, where T34 is a separation distance of the third lens and the fourth lens on the optical axis, T45 is a separation distance of the fourth lens and the fifth lens on the optical axis, and T56 is a separation distance of the fifth lens and the sixth lens on the optical axis. More specifically, T34, T45, and T56 can further satisfy 0.04. ltoreq. T34/(T45+ T56). ltoreq.0.28. The conditional expression of 0 < T34/(T45+ T56) < 0.5 is satisfied, the total length of the system is favorably shortened, and the off-axis light path of the system is adjusted; the method is favorable for reducing the incidence angle of the off-axis light and improving the imaging quality.
In an exemplary embodiment, the optical imaging system according to the present application may satisfy the conditional expression 0 < CT1/CT6 < 2, where CT1 is a central thickness of the first lens on the optical axis and CT6 is a central thickness of the sixth lens on the optical axis. More specifically, CT1 and CT6 may further satisfy 0.5 ≦ CT1/CT6 ≦ 1.5, for example, 0.58 ≦ CT1/CT6 ≦ 1.47. The condition that the CT1/CT6 is more than 0 is satisfied, the on-axis space of the system is favorably and reasonably distributed, and the processing manufacturability of the first lens and the sixth lens and the shortening of the total length of the system are well balanced.
In an exemplary embodiment, the optical imaging system according to the present application may satisfy the conditional expression 0 < | f4/f + f5/f | < 3, where f is the total effective focal length of the optical imaging system, f4 is the effective focal length of the fourth lens, and f5 is the effective focal length of the fifth lens. More specifically, f4, and f5 can further satisfy 0.07 ≦ f4/f + f5/f ≦ 2.97. The condition that the absolute value of f4/f + f5/f is less than 3 is satisfied, so that the axial chromatic aberration and the vertical axis chromatic aberration of the system can be corrected, and the imaging quality of the system can be improved.
In an exemplary embodiment, an optical imaging system according to the present application may satisfy the conditional expression TTL/ImgH < 3, where 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 system, and ImgH is a half of a diagonal length of an effective pixel area on the imaging surface of the optical imaging system. More specifically, TTL and ImgH can further satisfy 2.51 ≦ TTL/ImgH ≦ 2.86. The condition TTL/ImgH is less than 3, the miniaturization of the module is facilitated, and the imaging system can be suitable for a wider installation application scene.
In an exemplary embodiment, the optical imaging system may further include a diaphragm to improve the imaging quality of the lens. For example, a diaphragm may be disposed between the second lens and the third lens.
Optionally, the optical imaging system may further include a filter for correcting color deviation and/or a protective glass for protecting the photosensitive element on the imaging surface.
The optical imaging system according to the above-described 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 type, the central thickness of each lens, the on-axis distance between each lens and the like, the volume of the lens can be effectively reduced, the sensitivity of the lens can be reduced, and the machinability of the lens can be improved, so that the optical imaging system is more beneficial to production and processing and can be suitable for portable electronic products such as smart phones. The optical imaging system with the configuration has a large field angle, and can realize good correction of f-theta distortion of the lens, so that the lens can perform relatively accurate spatial positioning in a large spatial range.
In the embodiment of the present application, at least one of the mirror surfaces of each lens is an aspherical mirror surface. The aspheric lens is characterized in that: the curvature varies continuously from the center of the lens to the periphery of the lens. Unlike a spherical lens having a constant curvature from the center of the lens to the periphery of the lens, an aspherical lens has better curvature radius characteristics, and has advantages of improving distortion aberration and improving astigmatic aberration. After the aspheric lens is adopted, the aberration generated during imaging can be eliminated as much as possible, thereby improving the imaging quality.
However, it will be appreciated by those skilled in the art that the number of lenses constituting the optical imaging system may be varied to achieve the various results and advantages described in the present specification without departing from the claimed subject matter. For example, although six lenses are exemplified in the embodiment, the optical imaging system is not limited to including six lenses. The optical imaging system may also include other numbers of lenses, if desired.
Specific examples of the optical imaging system that can be applied to the above-described embodiments are further described below with reference to the drawings.
Example 1
An optical imaging system 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 optical imaging system according to embodiment 1 of the present application.
As shown in fig. 1, an optical imaging system according to an exemplary embodiment of the present application includes, in order from an object side to an image side along an optical axis: a first lens E1, a second lens E2, a stop STO, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7, and an image forming surface S15.
The first lens element E1 has negative power, and has a concave object-side surface S1, a concave image-side surface S2, and an inflection point on the object-side surface S1; the second lens element E2 has positive power, and has a convex object-side surface S3 and a concave image-side surface S4; the third lens element E3 has positive power, and has a convex object-side surface S5 and a convex image-side surface S6; the fourth lens element E4 has negative power, and has a convex object-side surface S7 and a concave image-side surface S8; the fifth lens element E5 has positive power, and has a convex object-side surface S9 and a convex image-side surface S10; the sixth lens element E6 has positive power, and has a convex object-side surface S11 and a concave image-side surface S12. Filter E7 has an object side S13 and an image side S14. The 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 surface type, radius of curvature, thickness, material, and conic coefficient of each lens of the optical imaging system of example 1, wherein the unit of the radius of curvature and the thickness are both millimeters (mm).
TABLE 1
As can be seen from table 1, the object-side surface and the image-side surface of any one of the first lens element E1 through the sixth lens element E6 are aspheric. In the present embodiment, the profile x of each aspheric lens can be defined using, but not limited to, the following aspheric formula:
wherein x is the rise of the distance from the aspheric surface vertex to the aspheric surface vertex when the aspheric surface is at the position with the height of h along the optical axis direction; c is the paraxial curvature of the aspheric surface, c being 1/R (i.e., paraxial curvature c is the inverse of radius of curvature R in table 1 above); k is the conic coefficient (given in table 1); ai is the correction coefficient of the i-th order of the aspherical surface. Table 2 below shows the high-order coefficient A of each of the aspherical mirror surfaces S1 to S12 used in example 14、A6、A8、A10、A12、A14And A16。
| Flour mark | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 3.8789E-02 | -8.9974E-03 | 1.5495E-03 | -1.6421E-04 | 9.2376E-06 | -2.0170E-07 | 0.0000E+00 |
| S2 | 4.6976E-02 | 1.0959E-01 | -4.3637E-01 | 1.1533E+00 | -1.4740E+00 | 9.2584E-01 | -2.2624E-01 |
| S3 | -1.1370E-01 | 6.9380E-02 | -3.3361E-01 | 5.5326E-01 | -5.4884E-01 | 2.8841E-01 | -6.2976E-02 |
| S4 | 2.9399E-02 | -9.0421E-01 | 9.0230E+00 | -4.8855E+01 | 1.5062E+02 | -2.4120E+02 | 1.5975E+02 |
| S5 | -7.6835E-03 | -1.0128E-01 | 3.0809E-01 | -2.7349E+00 | 1.1572E+01 | -2.2155E+01 | 1.7022E+01 |
| S6 | 3.8661E-01 | -1.7881E+00 | 5.6016E+00 | -1.3182E+01 | 2.0108E+01 | -1.7668E+01 | 6.7829E+00 |
| S7 | -1.6687E-01 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S8 | -2.0608E-02 | -6.9399E-02 | 1.2103E-01 | -1.8013E-01 | 1.8294E-01 | -8.4535E-02 | 1.2868E-02 |
| S9 | 1.6319E-01 | -4.2878E-01 | 6.9555E-01 | -8.0525E-01 | 5.5190E-01 | -1.9189E-01 | 2.6046E-02 |
| S10 | -1.4431E-02 | 2.3364E-02 | 1.5164E-02 | -7.2296E-02 | 6.2116E-02 | -2.4892E-02 | 4.2243E-03 |
| S11 | -2.5733E-01 | 1.4362E-01 | -7.3239E-02 | 2.5107E-02 | -5.4070E-03 | 6.3256E-04 | -2.8342E-05 |
| S12 | -2.7664E-01 | 1.4113E-01 | -6.7653E-02 | 2.1137E-02 | -4.2676E-03 | 5.0415E-04 | -2.7936E-05 |
TABLE 2
Table 3 shows the total effective focal length f of the optical imaging system, the effective focal lengths f1 to f6 of the respective lenses, ImgH which is half the diagonal length of the effective pixel region on the imaging surface S15, TTL which is the distance on the optical axis from the object side surface S1 to the imaging surface S15 of the first lens E1, and the maximum half field angle HFOV in example 1.
| f(mm) | 1.73 | f5(mm) | 3.33 |
| f1(mm) | -1.92 | f6(mm) | 238.75 |
| f2(mm) | 4.37 | ImgH(mm) | 2.26 |
| f3(mm) | 1.57 | TTL(mm) | 6.31 |
| f4(mm) | -2.22 | HFOV(°) | 75.00 |
TABLE 3
The optical imaging system in embodiment 1 satisfies:
(| f1| + | f3|)/f 2.02, where f is the total effective focal length of the optical imaging system, f1 is the effective focal length of the first lens E1, f3 is the effective focal length of the third lens E3;
R12/R11 is 0.91, where R11 is the radius of curvature of the object-side surface S11 of the sixth lens E6, and R12 is the radius of curvature of the image-side surface S12 of the sixth lens E6;
DT12/ImgH is 0.53, where DT12 is the maximum effective half aperture of the image side surface S2 of the first lens E1, and ImgH is half the diagonal length of the effective pixel area on the imaging surface S15;
1.28, where f is the total effective focal length of the optical imaging system, and f4 is the effective focal length of the fourth lens E4;
DT31/DT11 is 0.24, where DT11 is the maximum effective half aperture of the object-side surface S1 of the first lens E1, and DT31 is the maximum effective half aperture of the object-side surface S5 of the third lens E3;
r6/f is-0.59, where f is the total effective focal length of the optical imaging system, and R6 is the radius of curvature of the image-side surface S6 of the third lens E3;
T34/(T45+ T56) ═ 0.05, where T34 is the distance between the third lens E3 and the fourth lens E4 on the optical axis, T45 is the distance between the fourth lens E4 and the fifth lens E5 on the optical axis, and T56 is the distance between the fifth lens E5 and the sixth lens E6 on the optical axis;
CT1/CT6 is 1.47, where CT1 is the central thickness of the first lens E1 on the optical axis, and CT6 is the central thickness of the sixth lens E6 on the optical axis;
i f4/f + f5/f | -0.65, where f is the total effective focal length of the optical imaging system, f4 is the effective focal length of the fourth lens E4, f5 is the effective focal length of the fifth lens E5;
TTL/ImgH is 2.79, where TTL is the distance on the optical axis from the object side surface S1 of the first lens E1 to the imaging surface S15, and ImgH is half the length of the diagonal line of the effective pixel area on the imaging surface S15.
Fig. 2A shows an on-axis chromatic aberration curve of the optical imaging system of embodiment 1, which represents the deviation of the convergent focal points of light rays of different wavelengths after passing through the system. Fig. 2B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging system of embodiment 1. Fig. 2C shows a chromatic aberration of magnification curve of the optical imaging system of embodiment 1, which represents the deviation of different image heights on the imaging plane after the light passes through the system. As can be seen from fig. 2A to 2C, the optical imaging system according to embodiment 1 can achieve good imaging quality.
Example 2
An optical imaging system according to embodiment 2 of the present application is described below with reference to fig. 3 to 4C. In this embodiment and the following embodiments, descriptions of parts similar to those of embodiment 1 will be omitted for the sake of brevity. Fig. 3 shows a schematic structural diagram of an optical imaging system according to embodiment 2 of the present application.
As shown in fig. 3, the optical imaging system according to the exemplary embodiment of the present application, in order from an object side to an image side along an optical axis, includes: a first lens E1, a second lens E2, a stop STO, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7, and an image forming surface S15.
The first lens element E1 has negative power, and has a concave object-side surface S1, a concave image-side surface S2, and an inflection point on the object-side surface S1; the second lens element E2 has positive power, and has a convex object-side surface S3 and a concave image-side surface S4; the third lens element E3 has positive power, and has a convex object-side surface S5 and a convex image-side surface S6; the fourth lens element E4 has positive power, and has a convex object-side surface S7 and a convex image-side surface S8; the fifth lens element E5 has negative power, and has a concave object-side surface S9 and a concave image-side surface S10; the sixth lens element E6 has negative power, and has a convex object-side surface S11 and a concave image-side surface S12. Filter E7 has an object side S13 and an image side S14. The light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging surface S15.
Table 4 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens of the optical imaging system of example 2, wherein the unit of the radius of curvature and the thickness are both millimeters (mm).
TABLE 4
As is clear from table 4, in example 2, both the object-side surface and the image-side surface of any one of the first lens element E1 through the sixth lens element E6 are aspheric. Table 5 shows high-order term coefficients that can be used for each aspherical mirror surface in example 2, wherein each aspherical mirror surface type can be defined by formula (1) given in example 1 above.
| Flour mark | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 2.7140E-02 | -5.5284E-03 | 8.0324E-04 | -6.4223E-05 | 2.2828E-06 | 0.0000E+00 | 0.0000E+00 |
| S2 | 2.0936E-01 | -1.9048E-01 | 2.7130E-01 | -7.6400E-02 | -1.8051E-01 | 1.8994E-01 | -5.5712E-02 |
| S3 | -7.3667E-02 | 7.8211E-03 | -9.4895E-02 | 1.6166E-02 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S4 | 3.4394E-01 | -3.0256E-01 | 4.4224E-01 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S5 | 3.3423E-03 | 6.4347E-01 | -5.3353E+00 | 2.5095E+01 | -6.4129E+01 | 8.4331E+01 | -4.4490E+01 |
| S6 | -3.8660E-02 | -1.8084E-02 | -3.1362E-02 | 6.3575E-01 | -2.2774E+00 | 3.1820E+00 | -1.4816E+00 |
| S7 | -2.6658E-02 | -4.9377E-05 | -3.2641E-02 | -8.0118E-03 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S8 | -2.6949E-01 | 2.9369E-01 | -1.8004E-01 | 5.6373E-02 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S9 | -1.8687E-01 | -6.3499E-02 | 9.6446E-02 | 6.5017E-03 | -1.4005E-02 | 0.0000E+00 | 0.0000E+00 |
| S10 | 4.9032E-02 | -1.2367E-01 | 8.6827E-02 | -2.3717E-02 | 1.5391E-03 | 2.0952E-04 | -9.7410E-06 |
| S11 | -2.4561E-01 | 2.1642E-01 | -1.6000E-01 | 7.0659E-02 | -1.7283E-02 | 2.1886E-03 | -1.1208E-04 |
| S12 | -2.7674E-01 | 1.8167E-01 | -1.0062E-01 | 3.5115E-02 | -7.5992E-03 | 9.1498E-04 | -4.4634E-05 |
TABLE 5
Table 6 shows the total effective focal length f of the optical imaging system, the effective focal lengths f1 to f6 of the respective lenses, ImgH which is half the diagonal length of the effective pixel region on the imaging surface S15, TTL which is the distance on the optical axis from the object side surface S1 to the imaging surface S15 of the first lens E1, and the maximum half field angle HFOV in example 2.
| f(mm) | 1.74 | f5(mm) | -3.25 |
| f1(mm) | -1.98 | f6(mm) | -82.54 |
| f2(mm) | 7.19 | ImgH(mm) | 2.26 |
| f3(mm) | 2.30 | TTL(mm) | 6.31 |
| f4(mm) | 2.64 | HFOV(°) | 74.98 |
TABLE 6
Fig. 4A shows an on-axis chromatic aberration curve of the optical imaging system of embodiment 2, which represents the convergent focus deviation of light rays of different wavelengths after passing through the system. Fig. 4B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging system of embodiment 2. Fig. 4C shows a chromatic aberration of magnification curve of the optical imaging system of embodiment 2, which represents the deviation of different image heights on the imaging plane after the light passes through the system. As can be seen from fig. 4A to 4C, the optical imaging system according to embodiment 2 can achieve good imaging quality.
Example 3
An optical imaging system according to embodiment 3 of the present application is described below with reference to fig. 5 to 6C. Fig. 5 shows a schematic structural diagram of an optical imaging system according to embodiment 3 of the present application.
As shown in fig. 5, the optical imaging system according to the exemplary embodiment of the present application, in order from an object side to an image side along an optical axis, includes: a first lens E1, a second lens E2, a stop STO, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7, and an image forming surface S15.
The first lens element E1 has negative power, and has a concave object-side surface S1, a concave image-side surface S2, and an inflection point on the object-side surface S1; the second lens element E2 has positive power, and has a convex object-side surface S3 and a concave image-side surface S4; the third lens element E3 has positive power, and has a convex object-side surface S5 and a convex image-side surface S6; the fourth lens element E4 has negative power, and has a convex object-side surface S7 and a concave image-side surface S8; the fifth lens element E5 has positive power, and has a convex object-side surface S9 and a concave image-side surface S10; the sixth lens element E6 has positive power, and has a convex object-side surface S11 and a concave image-side surface S12. Filter E7 has an object side S13 and an image side S14. The light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging surface S15.
Table 7 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens of the optical imaging system of example 3, wherein the unit of the radius of curvature and the thickness are both millimeters (mm).
TABLE 7
As is clear from table 7, in example 3, both the object-side surface and the image-side surface of any one of the first lens element E1 through the sixth lens element E6 are aspheric. Table 8 shows high-order term coefficients that can be used for each aspherical mirror surface in example 3, wherein each aspherical mirror surface type can be defined by formula (1) given in example 1 above.
| Flour mark | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | -1.8086E-03 | 1.7893E-02 | -9.2208E-03 | 2.5388E-03 | -4.0577E-04 | 3.5566E-05 | -1.3152E-06 |
| S2 | 3.1268E-02 | -7.3563E-03 | 7.2753E-02 | -1.4060E-02 | 2.7108E-22 | -2.3633E-24 | -1.6856E-27 |
| S3 | -1.3850E-01 | -2.1378E-02 | -2.0809E-02 | 2.4155E-02 | 2.3883E-21 | 4.3284E-24 | -1.6856E-27 |
| S4 | -1.8729E-01 | 9.1866E-02 | -1.1819E-02 | 3.5080E-02 | -7.0044E-22 | -2.0055E-25 | -1.6856E-27 |
| S5 | -2.4827E-02 | -1.0057E-02 | 1.7833E-01 | -2.7551E-01 | 5.7952E-22 | -2.1355E-25 | -1.6856E-27 |
| S6 | -3.2898E-03 | -1.3290E-01 | 2.1578E-01 | -1.7626E-01 | -3.0787E-22 | -2.1355E-25 | -1.6856E-27 |
| S7 | -3.6830E-01 | 2.5004E-02 | -7.8481E-02 | -3.5800E-02 | -4.4396E-22 | -2.1355E-25 | -1.6856E-27 |
| S8 | -9.1318E-02 | 5.1207E-03 | 1.6487E-02 | 2.0170E-03 | -1.0875E-21 | -9.2854E-25 | -1.6856E-27 |
| S9 | 2.9996E-02 | -2.7334E-02 | 1.1744E-02 | -8.8359E-03 | -5.6061E-22 | -1.4932E-24 | -1.6856E-27 |
| S10 | -4.2558E-02 | 4.6319E-02 | -3.5690E-02 | 1.3650E-02 | -6.0896E-03 | 9.8361E-04 | -3.8704E-05 |
| S11 | -1.0984E-01 | 2.6530E-02 | -4.7794E-03 | -3.2386E-04 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S12 | -1.0928E-01 | 2.0675E-02 | -2.7183E-03 | -3.1839E-04 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
TABLE 8
Table 9 shows the total effective focal length f of the optical imaging system, the effective focal lengths f1 to f6 of the respective lenses, ImgH which is half the diagonal length of the effective pixel region on the imaging surface S15, TTL which is the distance on the optical axis from the object side surface S1 to the imaging surface S15 of the first lens E1, and the maximum half field angle HFOV in example 3.
| f(mm) | 1.69 | f5(mm) | 3.96 |
| f1(mm) | -1.96 | f6(mm) | 43.29 |
| f2(mm) | 9.70 | ImgH(mm) | 2.21 |
| f3(mm) | 1.63 | TTL(mm) | 6.32 |
| f4(mm) | -2.40 | HFOV(°) | 75.00 |
TABLE 9
Fig. 6A shows an on-axis chromatic aberration curve of the optical imaging system of embodiment 3, which represents the convergent focus deviation of light rays of different wavelengths after passing through the system. Fig. 6B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging system of embodiment 3. Fig. 6C shows a chromatic aberration of magnification curve of the optical imaging system of embodiment 3, which represents the deviation of different image heights on the imaging plane after the light passes through the system. As can be seen from fig. 6A to 6C, the optical imaging system according to embodiment 3 can achieve good imaging quality.
Example 4
An optical imaging system according to embodiment 4 of the present application is described below with reference to fig. 7 to 8C. Fig. 7 shows a schematic structural diagram of an optical imaging system according to embodiment 4 of the present application.
As shown in fig. 7, the optical imaging system according to the exemplary embodiment of the present application, in order from an object side to an image side along an optical axis, includes: a first lens E1, a second lens E2, a stop STO, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7, and an image forming surface S15.
The first lens element E1 has negative power, and has a convex object-side surface S1 and a concave image-side surface S2; the second lens element E2 has positive power, and has a convex object-side surface S3 and a convex image-side surface S4; the third lens element E3 has positive power, and has a convex object-side surface S5 and a convex image-side surface S6; the fourth lens element E4 has negative power, and has a convex object-side surface S7 and a concave image-side surface S8; the fifth lens element E5 has positive power, and has a convex object-side surface S9 and a concave image-side surface S10; the sixth lens element E6 has positive power, and has a convex object-side surface S11 and a concave image-side surface S12. Filter E7 has an object side S13 and an image side S14. The light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging surface S15.
Table 10 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens of the optical imaging system of example 4, wherein the unit of the radius of curvature and the thickness are both millimeters (mm).
As is clear from table 10, in example 4, both the object-side surface and the image-side surface of any of the first lens element E1 through the sixth lens element E6 are aspheric. Table 11 shows high-order term coefficients that can be used for each aspherical mirror surface in embodiment 4, wherein each aspherical mirror surface type can be defined by the formula (1) given in embodiment 1 above.
TABLE 11
Table 12 gives the total effective focal length f of the optical imaging system, the effective focal lengths f1 to f6 of the respective lenses, ImgH which is half the diagonal length of the effective pixel region on the imaging surface S15, TTL which is the distance on the optical axis from the object side surface S1 to the imaging surface S15 of the first lens E1, and the maximum half field angle HFOV in embodiment 4.
| f(mm) | 1.73 | f5(mm) | 7.31 |
| f1(mm) | -2.10 | f6(mm) | 17.62 |
| f2(mm) | 9.96 | ImgH(mm) | 2.25 |
| f3(mm) | 1.48 | TTL(mm) | 6.32 |
| f4(mm) | -2.19 | HFOV(°) | 75.00 |
TABLE 12
Fig. 8A shows an on-axis chromatic aberration curve of the optical imaging system of embodiment 4, which represents the convergent focus deviation of light rays of different wavelengths after passing through the system. Fig. 8B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging system of embodiment 4. Fig. 8C shows a chromatic aberration of magnification curve of the optical imaging system of embodiment 4, which represents the deviation of different image heights on the imaging plane after the light passes through the system. As can be seen from fig. 8A to 8C, the optical imaging system according to embodiment 4 can achieve good imaging quality.
Example 5
An optical imaging system according to embodiment 5 of the present application is described below with reference to fig. 9 to 10C. Fig. 9 shows a schematic structural diagram of an optical imaging system according to embodiment 5 of the present application.
As shown in fig. 9, the optical imaging system according to the exemplary embodiment of the present application, in order from an object side to an image side along an optical axis, includes: a first lens E1, a second lens E2, a stop STO, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7, and an image forming surface S15.
The first lens element E1 has negative power, and has a convex object-side surface S1 and a concave image-side surface S2; the second lens element E2 has positive power, and has a convex object-side surface S3 and a convex image-side surface S4; the third lens element E3 has positive power, and has a convex object-side surface S5 and a convex image-side surface S6; the fourth lens element E4 has negative power, and has a convex object-side surface S7 and a concave image-side surface S8; the fifth lens element E5 has positive power, and has a convex object-side surface S9 and a concave image-side surface S10; the sixth lens element E6 has positive power, and has a convex object-side surface S11 and a concave image-side surface S12. Filter E7 has an object side S13 and an image side S14. The light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging surface S15.
Table 13 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens of the optical imaging system of example 5, wherein the unit of the radius of curvature and the thickness are both millimeters (mm).
Watch 13
As is clear from table 13, in example 5, both the object-side surface and the image-side surface of any one of the first lens element E1 through the sixth lens element E6 are aspheric. Table 14 shows high-order term coefficients that can be used for each aspherical mirror surface in example 5, wherein each aspherical mirror surface type can be defined by formula (1) given in example 1 above.
TABLE 14
Table 15 shows the total effective focal length f of the optical imaging system, the effective focal lengths f1 to f6 of the respective lenses, ImgH which is half the diagonal length of the effective pixel region on the imaging surface S15, TTL which is the distance on the optical axis from the object side surface S1 to the imaging surface S15 of the first lens E1, and the maximum half field angle HFOV in example 5.
| f(mm) | 1.73 | f5(mm) | 6.69 |
| f1(mm) | -2.16 | f6(mm) | 20.51 |
| f2(mm) | 13.08 | ImgH(mm) | 2.52 |
| f3(mm) | 1.45 | TTL(mm) | 6.32 |
| f4(mm) | -2.16 | HFOV(°) | 75.00 |
Fig. 10A shows an on-axis chromatic aberration curve of the optical imaging system of embodiment 5, which represents the convergent focus deviation of light rays of different wavelengths after passing through the system. Fig. 10B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging system of example 5. Fig. 10C shows a chromatic aberration of magnification curve of the optical imaging system of embodiment 5, which represents the deviation of different image heights on the imaging plane after the light passes through the system. As can be seen from fig. 10A to 10C, the optical imaging system according to embodiment 5 can achieve good imaging quality.
Example 6
An optical imaging system 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 optical imaging system according to embodiment 6 of the present application.
As shown in fig. 11, the optical imaging system according to the exemplary embodiment of the present application, in order from an object side to an image side along an optical axis, includes: a first lens E1, a second lens E2, a stop STO, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7, and an image forming surface S15.
The first lens element E1 has negative power, and has a convex object-side surface S1, a concave image-side surface S2, and an inflection point on the object-side surface S1; the second lens E2 has positive power, and has a concave object-side surface S3 and a convex image-side surface S4; the third lens element E3 has positive power, and has a convex object-side surface S5 and a convex image-side surface S6; the fourth lens element E4 has negative power, and has a concave object-side surface S7 and a concave image-side surface S8; the fifth lens element E5 has positive power, and has a convex object-side surface S9 and a convex image-side surface S10; the sixth lens element E6 has positive power, and has a convex object-side surface S11 and a concave image-side surface S12. Filter E7 has an object side S13 and an image side S14. The light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging surface S15.
Table 16 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens of the optical imaging system of example 6, wherein the unit of the radius of curvature and the thickness are both millimeters (mm).
TABLE 16
As is clear from table 16, in example 6, both the object-side surface and the image-side surface of any one of the first lens element E1 through the sixth lens element E6 are aspheric. Table 17 shows high-order term coefficients that can be used for each aspherical mirror surface in example 6, wherein each aspherical mirror surface type can be defined by formula (1) given in example 1 above.
| Flour mark | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | -1.3728E-01 | 4.7018E-02 | -9.4654E-03 | 8.3490E-04 | 1.6495E-05 | -5.0868E-06 | 0.0000E+00 |
| S2 | -1.8970E-01 | 5.5253E-01 | -1.9840E+00 | 5.1765E+00 | -7.6822E+00 | 6.1765E+00 | -2.0557E+00 |
| S3 | -5.7572E-02 | 1.5656E-02 | -1.9829E-01 | 5.6379E-01 | -9.7488E-01 | 8.3914E-01 | -2.6193E-01 |
| S4 | -3.6235E-01 | 1.3603E+00 | -4.3505E+00 | 9.5178E+00 | -1.2777E+01 | 9.4129E+00 | -2.7486E+00 |
| S5 | -2.6636E-01 | 1.3794E+00 | -4.2898E+00 | 8.7164E+00 | -1.1001E+01 | 7.6177E+00 | -2.1779E+00 |
| S6 | -1.0422E-01 | 5.0081E-01 | -1.2302E+00 | 1.8786E+00 | -1.5768E+00 | 5.2483E-01 | 3.3229E-02 |
| S7 | -5.1439E-01 | 1.2368E+00 | -2.7983E+00 | 4.9128E+00 | -5.8119E+00 | 3.9294E+00 | -1.0911E+00 |
| S8 | -1.6044E-01 | 5.2984E-01 | -9.4259E-01 | 1.1834E+00 | -9.5166E-01 | 4.2046E-01 | -7.5759E-02 |
| S9 | -2.7765E-02 | 1.1489E-01 | -3.0638E-01 | 5.3037E-01 | -5.6819E-01 | 3.5035E-01 | -9.5849E-02 |
| S10 | -1.3211E-01 | 1.6198E-01 | -1.2038E-01 | 3.9230E-02 | 2.4422E-02 | -1.8644E-02 | 3.7126E-03 |
| S11 | -1.7979E-01 | 5.7842E-02 | -5.9300E-02 | 3.9939E-02 | -1.5914E-02 | 3.3262E-03 | -2.7930E-04 |
| S12 | -1.0322E-01 | -2.4088E-02 | 1.7694E-02 | -6.0595E-03 | 9.5983E-04 | -6.5395E-05 | -1.2824E-06 |
TABLE 17
Table 18 shows the total effective focal length f of the optical imaging system, the effective focal lengths f1 to f6 of the respective lenses, ImgH which is half the diagonal length of the effective pixel region on the imaging surface S15, TTL which is the distance on the optical axis from the object side surface S1 to the imaging surface S15 of the first lens E1, and the maximum half field angle HFOV in example 6.
| f(mm) | 1.73 | f5(mm) | 4.46 |
| f1(mm) | -2.48 | f6(mm) | 11.51 |
| f2(mm) | 12.16 | ImgH(mm) | 2.25 |
| f3(mm) | 1.54 | TTL(mm) | 6.32 |
| f4(mm) | -2.01 | HFOV(°) | 75.00 |
Watch 18
Fig. 12A shows an on-axis chromatic aberration curve of the optical imaging system of example 6, which represents the convergent focus deviation of light rays of different wavelengths after passing through the system. Fig. 12B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging system of example 6. Fig. 12C shows a chromatic aberration of magnification curve of the optical imaging system of embodiment 6, which represents the deviation of different image heights on the imaging plane after the light passes through the system. As can be seen from fig. 12A to 12C, the optical imaging system according to embodiment 6 can achieve good imaging quality.
Example 7
An optical imaging system 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 optical imaging system according to embodiment 7 of the present application.
As shown in fig. 13, the optical imaging system according to the exemplary embodiment of the present application, in order from an object side to an image side along an optical axis, includes: a first lens E1, a second lens E2, a stop STO, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7, and an image forming surface S15.
The first lens element E1 has negative power, and has a concave object-side surface S1, a concave image-side surface S2, and an inflection point on the object-side surface S1; the second lens element E2 has positive power, and has a convex object-side surface S3 and a concave image-side surface S4; the third lens element E3 has positive power, and has a convex object-side surface S5 and a convex image-side surface S6; the fourth lens element E4 has negative power, and has a convex object-side surface S7 and a concave image-side surface S8; the fifth lens element E5 has positive power, and has a convex object-side surface S9 and a concave image-side surface S10; the sixth lens element E6 has positive power, and has a convex object-side surface S11 and a concave image-side surface S12. Filter E7 has an object side S13 and an image side S14. The light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging surface S15.
Table 19 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens of the optical imaging system of example 7, wherein the unit of the radius of curvature and the thickness are both millimeters (mm).
Watch 19
As is clear from table 19, in example 7, both the object-side surface and the image-side surface of any one of the first lens element E1 through the sixth lens element E6 are aspheric. Table 20 shows high-order term coefficients that can be used for each aspherical mirror surface in example 7, wherein each aspherical mirror surface type can be defined by formula (1) given in example 1 above.
| Flour mark | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 6.6242E-02 | -3.3370E-02 | 1.2856E-02 | -3.3074E-03 | 5.2777E-04 | -4.6899E-05 | 1.7988E-06 |
| S2 | 1.7289E-01 | 2.6002E-01 | -1.2571E+00 | 3.9944E+00 | -6.7003E+00 | 5.8453E+00 | -2.0395E+00 |
| S3 | -1.2937E-01 | -1.0181E-01 | 1.2353E-01 | -2.1250E-01 | 5.8529E-02 | 5.1753E-02 | 0.0000E+00 |
| S4 | -2.0000E-01 | -9.1378E-01 | 7.0520E+00 | -2.8355E+01 | 6.6393E+01 | -8.2367E+01 | 4.2439E+01 |
| S5 | -6.2672E-02 | -1.7569E-01 | 7.0117E-01 | -1.9445E+00 | 3.5736E+00 | -3.3556E+00 | 1.3508E+00 |
| S6 | 3.2901E-01 | -1.7365E+00 | 5.8770E+00 | -1.2898E+01 | 1.7097E+01 | -1.2381E+01 | 3.7937E+00 |
| S7 | -3.2208E-01 | -8.3954E-01 | 3.4065E+00 | -6.9658E+00 | 8.3531E+00 | -5.2207E+00 | 1.1965E+00 |
| S8 | -7.1938E-03 | -4.8840E-01 | 1.2445E+00 | -1.7342E+00 | 1.4600E+00 | -6.8792E-01 | 1.3788E-01 |
| S9 | 9.4751E-02 | -1.0398E-02 | -2.9357E-01 | 5.5355E-01 | -5.2074E-01 | 2.3985E-01 | -4.1725E-02 |
| S10 | -1.6615E-01 | 2.3614E-01 | -2.5416E-01 | 2.0895E-01 | -1.2379E-01 | 3.8217E-02 | -4.0392E-03 |
| S11 | -2.0641E-01 | 1.2359E-01 | -1.1206E-01 | 6.8511E-02 | -2.5015E-02 | 4.8300E-03 | -3.8077E-04 |
| S12 | -9.6668E-02 | 1.4769E-02 | -1.2061E-02 | 7.3902E-03 | -2.3516E-03 | 3.5551E-04 | -2.0703E-05 |
Watch 20
Table 21 gives the total effective focal length f of the optical imaging system, the effective focal lengths f1 to f6 of the respective lenses, ImgH which is half the diagonal length of the effective pixel region on the imaging surface S15, TTL which is the distance on the optical axis from the object side surface S1 to the imaging surface S15 of the first lens E1, and the maximum half field angle HFOV in embodiment 7.
| f(mm) | 1.73 | f5(mm) | 6.90 |
| f1(mm) | -1.97 | f6(mm) | 7.81 |
| f2(mm) | 12.48 | ImgH(mm) | 2.26 |
| f3(mm) | 1.48 | TTL(mm) | 6.32 |
| f4(mm) | -2.63 | HFOV(°) | 75.00 |
TABLE 21
Fig. 14A shows an on-axis chromatic aberration curve of the optical imaging system of example 7, which represents the convergent focus deviation of light rays of different wavelengths after passing through the system. Fig. 14B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging system of embodiment 7. Fig. 14C shows a chromatic aberration of magnification curve of the optical imaging system of example 7, which represents the deviation of different image heights on the imaging plane after the light passes through the system. As can be seen from fig. 14A to 14C, the optical imaging system according to embodiment 7 can achieve good imaging quality.
Example 8
An optical imaging system according to embodiment 8 of the present application is described below with reference to fig. 15 to 16C. Fig. 15 shows a schematic structural view of an optical imaging system according to embodiment 8 of the present application.
As shown in fig. 15, the optical imaging system according to the exemplary embodiment of the present application, in order from an object side to an image side along an optical axis, includes: a first lens E1, a second lens E2, a stop STO, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7, and an image forming surface S15.
The first lens element E1 has negative power, and has a concave object-side surface S1, a concave image-side surface S2, and an inflection point on the object-side surface S1; the second lens element E2 has positive power, and has a convex object-side surface S3 and a concave image-side surface S4; the third lens element E3 has positive power, and has a convex object-side surface S5 and a convex image-side surface S6; the fourth lens element E4 has positive power, and has a convex object-side surface S7 and a convex image-side surface S8; the fifth lens element E5 has negative power, and has a concave object-side surface S9 and a concave image-side surface S10; the sixth lens element E6 has negative power, and has a convex object-side surface S11 and a concave image-side surface S12. Filter E7 has an object side S13 and an image side S14. The light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging surface S15.
Table 22 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens of the optical imaging system of example 8, wherein the unit of the radius of curvature and the thickness are both millimeters (mm).
TABLE 22
As can be seen from table 22, in example 8, both the object-side surface and the image-side surface of any one of the first lens element E1 through the sixth lens element E6 are aspheric. Table 23 shows high-order term coefficients that can be used for each aspherical mirror surface in embodiment 8, wherein each aspherical mirror surface type can be defined by the formula (1) given in embodiment 1 above.
| Flour mark | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 5.8961E-02 | -1.8038E-02 | 3.7812E-03 | -4.9584E-04 | 3.6872E-05 | -1.1425E-06 | 0.0000E+00 |
| S2 | 5.2644E-01 | -1.0272E+00 | 1.8706E+00 | -2.2146E+00 | 1.5940E+00 | -6.5675E-01 | 1.1906E-01 |
| S3 | -1.3428E-01 | -4.2384E-02 | 5.3265E-02 | -8.1174E-02 | -1.8599E-01 | 3.0694E-01 | -1.1862E-01 |
| S4 | 1.0460E-01 | -3.0703E-01 | 3.0985E+00 | -1.3344E+01 | 3.4867E+01 | -4.8807E+01 | 3.0534E+01 |
| S5 | 2.5924E-02 | 1.9358E-02 | -1.5000E-01 | 3.7336E-02 | 1.3446E+00 | -2.9428E+00 | 1.9446E+00 |
| S6 | 5.1529E-02 | -3.0792E-01 | 1.1797E+00 | -3.1555E+00 | 4.7836E+00 | -3.7345E+00 | 1.1838E+00 |
| S7 | 2.3038E-03 | -4.2619E-02 | -6.3385E-04 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S8 | -1.1118E-01 | -9.4162E-01 | 2.2884E+00 | -2.5754E+00 | 1.5739E+00 | -4.9919E-01 | 6.6423E-02 |
| S9 | -6.8605E-02 | -7.2182E-01 | 1.3504E+00 | -1.0726E+00 | 3.1503E-01 | 5.6041E-02 | -3.6522E-02 |
| S10 | 1.2897E-01 | -1.8518E-01 | 1.3315E-01 | -4.9258E-02 | 6.4188E-03 | 1.0820E-03 | -3.0823E-04 |
| S11 | -2.1262E-01 | 1.7599E-01 | -1.2950E-01 | 6.0263E-02 | -1.6146E-02 | 2.3123E-03 | -1.3896E-04 |
| S12 | -2.6573E-01 | 1.7275E-01 | -9.8466E-02 | 3.6102E-02 | -8.4737E-03 | 1.1725E-03 | -7.2671E-05 |
TABLE 23
Table 24 shows the total effective focal length f of the optical imaging system, the effective focal lengths f1 to f6 of the respective lenses, ImgH which is half the diagonal length of the effective pixel region on the imaging plane S15, TTL on the optical axis from the object side surface S1 of the first lens E1 to the imaging plane S15, the maximum half field angle HFOV, and the f-number Fno in example 8.
| f(mm) | 1.73 | f5(mm) | -2.89 |
| f1(mm) | -1.85 | f6(mm) | -43.05 |
| f2(mm) | 7.10 | ImgH(mm) | 2.26 |
| f3(mm) | 1.86 | TTL(mm) | 6.31 |
| f4(mm) | 3.01 | HFOV(°) | 75.00 |
Watch 24
Fig. 16A shows an on-axis chromatic aberration curve of the optical imaging system of embodiment 8, which represents the convergent focus deviation of light rays of different wavelengths after passing through the system. Fig. 16B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging system of example 8. Fig. 16C shows a chromatic aberration of magnification curve of the optical imaging system of embodiment 8, which represents the deviation of different image heights on the imaging plane after the light passes through the system. As can be seen from fig. 16A to 16C, the optical imaging system according to embodiment 8 can achieve good imaging quality.
Example 9
An optical imaging system according to embodiment 9 of the present application is described below with reference to fig. 17 to 18C. Fig. 17 shows a schematic configuration diagram of an optical imaging system according to embodiment 9 of the present application.
As shown in fig. 17, the optical imaging system according to the exemplary embodiment of the present application, in order from an object side to an image side along an optical axis, includes: a first lens E1, a second lens E2, a stop STO, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7, and an image forming surface S15.
The first lens element E1 has negative power, and has a concave object-side surface S1, a concave image-side surface S2, and an inflection point on the object-side surface S1; the second lens element E2 has positive power, and has a convex object-side surface S3 and a concave image-side surface S4; the third lens element E3 has positive power, and has a convex object-side surface S5 and a convex image-side surface S6; the fourth lens element E4 has positive power, and has a convex object-side surface S7 and a convex image-side surface S8; the fifth lens element E5 has negative power, and has a concave object-side surface S9 and a concave image-side surface S10; the sixth lens element E6 has negative power, and has a convex object-side surface S11 and a concave image-side surface S12. Filter E7 has an object side S13 and an image side S14. The light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging surface S15.
Table 25 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens of the optical imaging system of example 9, wherein the unit of the radius of curvature and the thickness are both millimeters (mm).
TABLE 25
As is clear from table 25, in example 9, both the object-side surface and the image-side surface of any one of the first lens element E1 through the sixth lens element E6 are aspheric. Table 26 shows high-order term coefficients that can be used for each aspherical mirror surface in example 9, wherein each aspherical mirror surface type can be defined by formula (1) given in example 1 above.
| Flour mark | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 2.6849E-02 | -5.4891E-03 | 8.1234E-04 | -6.6414E-05 | 2.4615E-06 | 0.0000E+00 | 0.0000E+00 |
| S2 | 1.3567E-01 | 9.3214E-02 | -3.2542E-01 | 6.8283E-01 | -7.5368E-01 | 4.2346E-01 | -9.5003E-02 |
| S3 | -7.2453E-02 | -9.9936E-03 | -8.1430E-02 | 1.5013E-02 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S4 | 2.7698E-01 | -2.4114E-01 | 3.1972E-01 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S5 | 6.4569E-03 | 6.1327E-01 | -5.8173E+00 | 3.0501E+01 | -8.5761E+01 | 1.2308E+02 | -7.0595E+01 |
| S6 | -1.1085E-02 | -3.5445E-01 | 1.9957E+00 | -5.7296E+00 | 8.8371E+00 | -6.9920E+00 | 2.3000E+00 |
| S7 | -4.0058E-02 | 2.2695E-02 | -4.0907E-02 | -7.8269E-03 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S8 | -2.2317E-01 | 2.1373E-01 | -1.0788E-01 | 3.0731E-02 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S9 | -1.2926E-01 | -7.6342E-02 | 8.5970E-02 | 5.0823E-03 | -1.0631E-02 | 0.0000E+00 | 0.0000E+00 |
| S10 | 4.7440E-02 | -1.2329E-01 | 8.6812E-02 | -2.3252E-02 | 1.4935E-03 | 4.3597E-05 | 3.5472E-05 |
| S11 | -2.5481E-01 | 2.2279E-01 | -1.7203E-01 | 8.1064E-02 | -2.1211E-02 | 2.8729E-03 | -1.5760E-04 |
| S12 | -2.6295E-01 | 1.6613E-01 | -9.0656E-02 | 3.0858E-02 | -6.4005E-03 | 7.3225E-04 | -3.3813E-05 |
Watch 26
Table 27 shows the total effective focal length f of the optical imaging system, the effective focal lengths f1 to f6 of the respective lenses, ImgH which is half the diagonal length of the effective pixel region on the imaging plane S15, TTL on the optical axis from the object side surface S1 to the imaging plane S15 of the first lens E1, the maximum half field angle HFOV, and the f-number Fno in example 9.
Watch 27
Fig. 18A shows an on-axis chromatic aberration curve of the optical imaging system of example 9, which represents the convergent focus deviation of light rays of different wavelengths after passing through the system. Fig. 18B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging system of example 9. Fig. 18C shows a chromatic aberration of magnification curve of the optical imaging system of example 9, which represents the deviation of different image heights on the imaging plane after the light passes through the system. As can be seen from fig. 18A to 18C, the optical imaging system according to embodiment 9 can achieve good imaging quality.
In summary, examples 1 to 9 each satisfy the relationship shown in table 28.
| Conditional expression (A) example | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| (|f1|+|f3|)/f | 2.02 | 2.46 | 2.12 | 2.08 | 2.10 | 2.33 | 2.00 | 2.15 | 2.47 |
| R12/R11 | 0.91 | 0.85 | 1.02 | 1.06 | 1.04 | 1.11 | 1.25 | 0.82 | 0.87 |
| DT12/ImgH | 0.53 | 0.52 | 0.52 | 0.47 | 0.42 | 0.45 | 0.44 | 0.55 | 0.52 |
| |f4/f| | 1.28 | 1.52 | 1.42 | 1.27 | 1.25 | 1.16 | 1.52 | 1.74 | 1.82 |
| DT31/DT11 | 0.24 | 0.25 | 0.32 | 0.34 | 0.34 | 0.41 | 0.35 | 0.25 | 0.24 |
| R6/f | -0.59 | -0.90 | -0.93 | -0.77 | -0.78 | -0.85 | -0.68 | -0.69 | -0.92 |
| T34/(T45+T56) | 0.05 | 0.21 | 0.06 | 0.05 | 0.04 | 0.06 | 0.05 | 0.09 | 0.28 |
| CT1/CT6 | 1.47 | 0.91 | 0.62 | 0.58 | 0.63 | 1.02 | 0.68 | 0.81 | 0.87 |
| |f4/f+f5/f| | 0.65 | 0.35 | 0.92 | 2.97 | 2.63 | 1.42 | 2.48 | 0.07 | 0.56 |
| TTL/ImgH | 2.79 | 2.79 | 2.86 | 2.81 | 2.51 | 2.80 | 2.80 | 2.80 | 2.77 |
| HFOV(°) | 75.00 | 74.98 | 75.00 | 75.00 | 75.00 | 75.00 | 75.00 | 75.00 | 75.01 |
Watch 28
The present application also provides an imaging device whose electron photosensitive element may be a photo-coupled device (CCD) or a complementary metal oxide semiconductor device (CMOS). The imaging device may be a stand-alone imaging device such as a digital camera, or may be an imaging module integrated on a mobile electronic device such as a mobile phone. The imaging device is equipped with the optical imaging system described above.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (10)
1. The optical imaging system comprises, in order from an object side to an image side along an optical axis: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens,
the first lens has negative focal power, and the image side surface of the first lens is a concave surface;
the second lens has positive optical power;
the third lens has positive focal power, and both the object side surface and the image side surface of the third lens are convex surfaces;
the fourth lens has optical power;
the fifth lens has optical power;
the sixth lens has focal power, and the object side surface of the sixth lens is a convex surface, and the image side surface of the sixth lens is a concave surface;
at least one of an object side surface of the first lens and an image side surface of the sixth lens is an aspheric mirror surface;
the maximum effective half aperture DT12 of the image side surface of the first lens and the half of the diagonal length ImgH of the effective pixel area on the imaging surface of the optical imaging system satisfy 0 & lt DT12/ImgH & lt 1;
the effective focal length f1 of the first lens, the effective focal length f3 of the third lens and the total effective focal length f of the optical imaging system satisfy 1 < (| f1| + | f3|)/f < 3; and
the distance T34 between the third lens and the fourth lens on the optical axis, the distance T45 between the fourth lens and the fifth lens on the optical axis, and the distance T56 between the fifth lens and the sixth lens on the optical axis satisfy 0 < T34/(T45+ T56) ≦ 0.21.
2. The optical imaging system of claim 1, wherein the effective focal length f4 of the fourth lens and the total effective focal length f of the optical imaging system satisfy 1 < | f4/f | < 2.
3. The optical imaging system of claim 2, wherein the effective focal length f4 of the fourth lens, the effective focal length f5 of the fifth lens and the total effective focal length f of the optical imaging system satisfy 0 < | f4/f + f5/f | < 3.
4. The optical imaging system of claim 1, wherein the maximum effective half aperture DT11 of the object-side surface of the first lens and the maximum effective half aperture DT31 of the object-side surface of the third lens satisfy 0 < DT31/DT11 < 1.
5. The optical imaging system of claim 1, wherein a central thickness CT1 of the first lens on the optical axis and a central thickness CT6 of the sixth lens on the optical axis satisfy 0 < CT1/CT6 < 2.
6. The optical imaging system of claim 1, wherein a radius of curvature R6 of an image-side surface of the third lens satisfies-1.5 < R6/f < 0 with a total effective focal length f of the optical imaging system.
7. The optical imaging system of claim 1, wherein a radius of curvature R11 of an object-side surface of the sixth lens and a radius of curvature R12 of an image-side surface of the sixth lens satisfy 0 < R12/R11 < 2.
8. The optical imaging system of claim 1, wherein the object side surface of the first lens has an inflection point.
9. The optical imaging system of claim 1, wherein a distance TTL between an object side surface of the first lens element and an imaging surface of the optical imaging system on the optical axis and a half ImgH of a diagonal length of an effective pixel area on the imaging surface of the optical imaging system satisfy TTL/ImgH < 3.
10. The optical imaging system according to any one of claims 1 to 9, characterized in that the maximum half field angle HFOV of the optical imaging system satisfies HFOV ≧ 70 °.
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| CN111458838B (en) * | 2019-01-22 | 2022-01-21 | 浙江舜宇光学有限公司 | Optical lens group |
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| CN111781702B (en) * | 2020-06-20 | 2024-05-03 | 广东弘景光电科技股份有限公司 | Large aperture ultra-large wide angle monitoring optical system |
| CN111880286B (en) * | 2020-06-20 | 2023-12-29 | 广东弘景光电科技股份有限公司 | Large aperture ultra-large wide angle monitoring camera module |
| CN112305715B (en) * | 2020-11-13 | 2022-09-20 | 宁波舜宇车载光学技术有限公司 | Optical lens and electronic device |
| CN113296248B (en) * | 2021-07-01 | 2022-09-02 | 浙江舜宇光学有限公司 | Optical imaging lens |
| CN114002824B (en) * | 2021-12-24 | 2022-07-12 | 江西联创电子有限公司 | Optical imaging lens and imaging apparatus |
| WO2024117747A1 (en) * | 2022-11-29 | 2024-06-06 | 엘지이노텍 주식회사 | Optical system and camera device comprising same |
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