CN108919468B - Optical imaging lens - Google Patents

Optical imaging lens Download PDF

Info

Publication number
CN108919468B
CN108919468B CN201811122945.5A CN201811122945A CN108919468B CN 108919468 B CN108919468 B CN 108919468B CN 201811122945 A CN201811122945 A CN 201811122945A CN 108919468 B CN108919468 B CN 108919468B
Authority
CN
China
Prior art keywords
lens
optical
optical imaging
image
concave
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201811122945.5A
Other languages
Chinese (zh)
Other versions
CN108919468A (en
Inventor
周鑫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Sunny Optics Co Ltd
Original Assignee
Zhejiang Sunny Optics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang Sunny Optics Co Ltd filed Critical Zhejiang Sunny Optics Co Ltd
Priority to CN202310787985.6A priority Critical patent/CN116880044A/en
Priority to CN201811122945.5A priority patent/CN108919468B/en
Publication of CN108919468A publication Critical patent/CN108919468A/en
Priority to PCT/CN2019/087374 priority patent/WO2020062893A1/en
Application granted granted Critical
Publication of CN108919468B publication Critical patent/CN108919468B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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

Abstract

The application discloses an optical imaging lens, which sequentially comprises the following components 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, a sixth lens and a seventh lens. Wherein the first lens has positive optical power; the second lens has optical power, and the object side surface of the second lens is a convex surface; the third lens has optical power; the fourth lens has negative focal power, and the object side surface and the image side surface of the fourth lens are concave surfaces; the fifth lens has optical power; the sixth lens has negative focal power, and the image side surface of the sixth lens is a concave surface; the seventh lens has optical power. The interval distance T56 of the fifth lens and the sixth lens on the optical axis, the interval distance T12 of the first lens and the second lens on the optical axis and the interval distance T23 of the second lens and the third lens on the optical axis satisfy 2 < T56/(T12+T23)/5 < 3.

Description

Optical imaging lens
Technical Field
The present application relates to an optical imaging lens, and more particularly, to an optical imaging lens including seven lenses.
Background
In recent years, with the high-speed updating of portable electronic products such as smart phones and tablet computers, the market demands for imaging lenses at the product end are increasing. The user hopes to realize clear shooting of remote scenes through portable electronic products such as smart phones and the like, and the effects of highlighting main body information and blurring background can be achieved. This puts higher demands on imaging lenses used in cooperation with portable electronic products, and requires miniaturization and high imaging quality of the imaging lens, and also requires characteristics of long focal length.
Disclosure of Invention
The present application provides an optical imaging lens applicable to portable electronic products, which at least solves or partially solves at least one of the above-mentioned drawbacks of the prior art.
In one aspect, the present application provides an optical imaging lens comprising, 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, a sixth lens and a seventh lens. Wherein the first lens may have positive optical power; the second lens has optical power, and the object side surface of the second lens can be a convex surface; the third lens has optical power; the fourth lens element may have negative refractive power, and both object-side and image-side surfaces thereof may be concave; the fifth lens has optical power; the sixth lens may have negative optical power, and an image side surface thereof may be concave; the seventh lens has optical power. The interval distance T56 between the fifth lens and the sixth lens on the optical axis, the interval distance T12 between the first lens and the second lens on the optical axis, and the interval distance T23 between the second lens and the third lens on the optical axis may satisfy 2 < T56/(t12+t23)/5 < 3.
In one embodiment, the effective focal length f6 of the sixth lens and the effective focal length f1 of the first lens may satisfy-2.5 < f6/f1 < -1.
In one embodiment, the radius of curvature R1 of the object-side surface of the first lens and the radius of curvature R3 of the object-side surface of the second lens may satisfy 0 < R1/R3 < 0.5.
In one embodiment, the radius of curvature R7 of the object-side surface of the fourth lens and the radius of curvature R1 of the object-side surface of the first lens may satisfy-8.5 < R7/R1 < -6.
In one embodiment, the radius of curvature R8 of the image side of the fourth lens and the radius of curvature R12 of the image side of the sixth lens may satisfy 1 < R8/R12 < 2.
In one embodiment, the combined focal length f123 of the first lens, the second lens and the third lens and the effective focal length f3 of the third lens may satisfy 0 < f123/f3 < 0.5.
In one embodiment, the on-axis distance SAG42 from the intersection of the image side surface of the fourth lens element and the optical axis to the vertex of the effective radius of the image side surface of the fourth lens element and the on-axis distance SAG51 from the intersection of the object side surface of the fifth lens element and the optical axis to the vertex of the effective radius of the object side surface of the fifth lens element may satisfy-3 < SAG42/SAG51 < -0.5.
In one embodiment, the combined focal length f45 of the fourth lens and the fifth lens and the combined focal length f67 of the sixth lens and the seventh lens may satisfy 0 < f45/f67 < 0.6.
In one embodiment, the separation distance T56 of the fifth lens and the sixth lens on the optical axis and the separation distance T67 of the sixth lens and the seventh lens on the optical axis may satisfy 2.5 < T56/T67 < 3.5.
In one embodiment, the center thickness CT2 of the second lens, the center thickness CT5 of the fifth lens and the center thickness CT7 of the seventh lens may satisfy 0.5 < (CT2+CT5)/CT 7 < 1.5.
In one embodiment, the maximum half field angle HFOV of the optical imaging lens may satisfy 22 < HFOV < 29.
In another aspect, the present application provides an optical imaging lens comprising, 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, a sixth lens and a seventh lens. Wherein the first lens may have positive optical power; the second lens has optical power, and the object side surface of the second lens can be a convex surface; the third lens has optical power; the fourth lens element may have negative refractive power, and both object-side and image-side surfaces thereof may be concave; the fifth lens has optical power; the sixth lens may have negative optical power, and an image side surface thereof may be concave; the seventh lens has optical power. The radius of curvature R8 of the image side of the fourth lens element and the radius of curvature R12 of the image side of the sixth lens element may satisfy 1 < R8/R12 < 2.
In still another aspect, the present application further provides an optical imaging lens, including, 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, a sixth lens and a seventh lens. Wherein the first lens may have positive optical power; the second lens has optical power, and the object side surface of the second lens can be a convex surface; the third lens has optical power; the fourth lens element may have negative refractive power, and both object-side and image-side surfaces thereof may be concave; the fifth lens has optical power; the sixth lens may have negative optical power, and an image side surface thereof may be concave; the seventh lens has optical power. The radius of curvature R7 of the object-side surface of the fourth lens and the radius of curvature R1 of the object-side surface of the first lens may satisfy-8.5 < R7/R1 < -6.
In still another aspect, the present application further provides an optical imaging lens, including, 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, a sixth lens and a seventh lens. Wherein the first lens may have positive optical power; the second lens has optical power, and the object side surface of the second lens can be a convex surface; the third lens has optical power; the fourth lens element may have negative refractive power, and both object-side and image-side surfaces thereof may be concave; the fifth lens has optical power; the sixth lens may have negative optical power, and an image side surface thereof may be concave; the seventh lens has optical power. The combined focal length f123 of the first lens, the second lens and the third lens and the effective focal length f3 of the third lens can satisfy 0 < f123/f3 < 0.5.
In still another aspect, the present application further provides an optical imaging lens, including, 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, a sixth lens and a seventh lens. Wherein the first lens may have positive optical power; the second lens has optical power, and the object side surface of the second lens can be a convex surface; the third lens has optical power; the fourth lens element may have negative refractive power, and both object-side and image-side surfaces thereof may be concave; the fifth lens has optical power; the sixth lens may have negative optical power, and an image side surface thereof may be concave; the seventh lens has optical power. The on-axis distance SAG42 from the intersection point of the image side surface of the fourth lens element and the optical axis to the vertex of the effective radius of the image side surface of the fourth lens element and the on-axis distance SAG51 from the intersection point of the object side surface of the fifth lens element and the optical axis to the vertex of the effective radius of the object side surface of the fifth lens element can satisfy-3 < SAG42/SAG51 < -0.5.
In still another aspect, the present application further provides an optical imaging lens, including, 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, a sixth lens and a seventh lens. Wherein the first lens may have positive optical power; the second lens has optical power, and the object side surface of the second lens can be a convex surface; the third lens has optical power; the fourth lens element may have negative refractive power, and both object-side and image-side surfaces thereof may be concave; the fifth lens has optical power; the sixth lens may have negative optical power, and an image side surface thereof may be concave; the seventh lens has optical power. The combined focal length f45 of the fourth lens and the fifth lens and the combined focal length f67 of the sixth lens and the seventh lens can satisfy 0 < f45/f67 < 0.6.
In still another aspect, the present application further provides an optical imaging lens, including, 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, a sixth lens and a seventh lens. Wherein the first lens may have positive optical power; the second lens has optical power, and the object side surface of the second lens can be a convex surface; the third lens has optical power; the fourth lens element may have negative refractive power, and both object-side and image-side surfaces thereof may be concave; the fifth lens has optical power; the sixth lens may have negative optical power, and an image side surface thereof may be concave; the seventh lens has optical power. The interval distance T56 between the fifth lens and the sixth lens on the optical axis and the interval distance T67 between the sixth lens and the seventh lens on the optical axis can satisfy 2.5 < T56/T67 < 3.5.
In still another aspect, the present application further provides an optical imaging lens, including, 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, a sixth lens and a seventh lens. Wherein the first lens may have positive optical power; the second lens has optical power, and the object side surface of the second lens can be a convex surface; the third lens has optical power; the fourth lens element may have negative refractive power, and both object-side and image-side surfaces thereof may be concave; the fifth lens has optical power; the sixth lens may have negative optical power, and an image side surface thereof may be concave; the seventh lens has optical power. The center thickness CT2 of the second lens, the center thickness CT5 of the fifth lens and the center thickness CT7 of the seventh lens can satisfy 0.5 < (CT2+CT5)/CT 7 < 1.5.
The application adopts seven aspheric lenses, and the optical imaging lens has at least one beneficial effect of long focal length, miniaturization, good processing characteristics, high imaging quality and the like by reasonably distributing the focal power, the surface type, the center thickness of each lens, the axial spacing among the lenses 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 optical imaging lens according to embodiment 1 of the present application;
fig. 2A to 2D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the optical imaging lens of embodiment 1;
fig. 3 is a schematic diagram showing the structure of an optical imaging lens according to embodiment 2 of the present application;
fig. 4A to 4D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the optical imaging lens of embodiment 2;
fig. 5 shows a schematic structural view of an optical imaging lens according to embodiment 3 of the present application;
fig. 6A to 6D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the optical imaging lens of embodiment 3;
fig. 7 shows a schematic configuration diagram of an optical imaging lens according to embodiment 4 of the present application;
fig. 8A to 8D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the optical imaging lens of embodiment 4;
Fig. 9 shows a schematic configuration diagram of an optical imaging lens according to embodiment 5 of the present application;
fig. 10A to 10D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the optical imaging lens of embodiment 5;
fig. 11 shows a schematic structural view of an optical imaging lens according to embodiment 6 of the present application;
fig. 12A to 12D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the optical imaging lens of embodiment 6;
fig. 13 is a schematic diagram showing the structure of an optical imaging lens according to embodiment 7 of the present application;
fig. 14A to 14D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the optical imaging lens of embodiment 7;
fig. 15 shows a schematic structural view of an optical imaging lens according to embodiment 8 of the present application;
fig. 16A to 16D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the optical imaging lens of embodiment 8;
fig. 17 is a schematic diagram showing the structure of an optical imaging lens according to embodiment 9 of the present application;
fig. 18A to 18D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the optical imaging lens of embodiment 9;
Fig. 19 is a schematic diagram showing the structure of an optical imaging lens according to embodiment 10 of the present application;
fig. 20A to 20D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the optical imaging lens of embodiment 10;
fig. 21 shows a schematic configuration diagram of an optical imaging lens according to embodiment 11 of the present application;
fig. 22A to 22D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the optical imaging lens of embodiment 11.
Detailed Description
For a better understanding of the application, various aspects of the application will be described in more detail with reference to the accompanying drawings. It should be understood that the detailed description is merely illustrative of exemplary embodiments of the application and is not intended to limit the scope of the application in any way. Like reference numerals refer to like elements throughout the specification. The expression "and/or" includes any and all combinations of one or more of the associated listed items.
It should be noted that in the present specification, the expressions of first, second, third, etc. are only used to distinguish one feature from another feature, and do not represent any limitation on the feature. Accordingly, a first lens discussed below may also be referred to as a second lens or a third lens without departing from the teachings of the present application.
In the drawings, the thickness, size, and shape of the lenses have been slightly exaggerated for convenience of explanation. In particular, the spherical or aspherical shape shown in the drawings is shown by way of example. That is, the shape of the spherical or aspherical surface is not limited to the shape of the spherical or aspherical surface shown in the drawings. The figures are merely examples and are not drawn to scale.
Herein, the paraxial region refers to a region near the optical axis. If the lens surface is convex and the convex position is not defined, 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 object is referred to as the object side of the lens, and the surface of each lens closest to the imaging plane is referred to as the image side of the lens.
It will be further understood that the terms "comprises," "comprising," "includes," "including," "having," "containing," and/or "including," when used in this specification, specify the presence of stated features, elements, and/or components, but do not preclude the presence or addition of one or more other features, elements, components, and/or groups thereof. Furthermore, when a statement such as "at least one of the following" appears after a list of features that are listed, the entire listed feature is modified instead of modifying a separate element in the list. Furthermore, when describing embodiments of the application, use of "may" means "one or more embodiments of the application. Also, the term "exemplary" is intended to refer to an example or illustration.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
The features, principles, and other aspects of the present application are described in detail below.
The optical imaging lens according to the exemplary embodiment of the present application may include, for example, seven lenses having optical power, i.e., a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. The seven lenses are sequentially arranged from the object side to the image side along the optical axis, and each adjacent lens can have an air space therebetween.
In an exemplary embodiment, the first lens may have positive optical power; the second lens has positive focal power or negative focal power, and the object side surface of the second lens can be a convex surface; the third lens has positive optical power or negative optical power; the fourth lens element may have negative refractive power, wherein the object-side surface thereof may be concave, and the image-side surface thereof may be concave; the fifth lens has positive optical power or negative optical power; the sixth lens may have negative optical power, and an image side surface thereof may be concave; the seventh lens has positive or negative optical power.
In an exemplary embodiment, the object side surface of the first lens may be convex.
In an exemplary embodiment, one of the object side surface and the image side surface of the seventh lens is convex, and the other is concave.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 2 < T56/(t12+t23)/5 < 3, where T56 is the distance between the fifth lens and the sixth lens on the optical axis, T12 is the distance between the first lens and the second lens on the optical axis, and T23 is the distance between the second lens and the third lens on the optical axis. More specifically, T56, T12 and T23 may further satisfy 2.25.ltoreq.T56/(T12+T23)/5.ltoreq.2.56. The air intervals of the first lens, the second lens, the third lens, the fifth lens and the sixth lens on the optical axis are reasonably distributed, so that the processability of the lenses is favorably met, the size of the rear end of the optical imaging lens can be effectively reduced, and the overlarge volume of the optical imaging lens is avoided.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the condition of 1 < R8/R12 < 2, wherein R8 is a radius of curvature of an image side surface of the fourth lens element, and R12 is a radius of curvature of an image side surface of the sixth lens element. More specifically, R8 and R12 may further satisfy 1.05.ltoreq.R8/R12.ltoreq.1.60. The curvature radius of the image side surface of the fourth lens and the curvature radius of the image side surface of the sixth lens are reasonably controlled, so that the focal power of the image side surface lens of the optical imaging lens is reduced, and the optical imaging lens has better capability of balancing chromatic aberration and distortion.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the condition-2.5 < f6/f1 < -1 >, where f6 is an effective focal length of the sixth lens and f1 is an effective focal length of the first lens. More specifically, f6 and f1 may further satisfy-2.26.ltoreq.f6/f1.ltoreq.1.38. And effective focal lengths of the sixth lens and the first lens are reasonably distributed, so that the long-focus characteristic of the optical imaging lens is realized. Meanwhile, the arrangement is also beneficial to improving the light converging capability, adjusting the light focusing position and shortening the total length of the optical imaging lens.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the condition-8.5 < R7/R1 < -6, wherein R7 is a radius of curvature of an object side surface of the fourth lens element and R1 is a radius of curvature of an object side surface of the first lens element. More specifically, R7 and R1 may further satisfy-8.20.ltoreq.R7/R1.ltoreq.6.18. And reasonably distributing the curvature radius of the fourth lens object side surface and the curvature radius of the first lens object side surface. The astigmatism of the optical imaging lens can be effectively balanced, and further miniaturization of the optical imaging lens is ensured.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 0 < R1/R3 < 0.5, where R1 is a radius of curvature of the object side surface of the first lens element and R3 is a radius of curvature of the object side surface of the second lens element. More specifically, R1 and R3 may further satisfy 0.21.ltoreq.R1/R3.ltoreq.0.38. The curvature radius of the object side surface of the first lens and the curvature radius of the object side surface of the second lens are reasonably distributed, so that the optical imaging lens has stronger astigmatism balancing capability, the reasonable control of the deflection angle of the main light ray is facilitated, and the miniaturization of the optical imaging lens is further ensured.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 0 < f123/f3 < 0.5, where f123 is a combined focal length of the first lens, the second lens, and the third lens, and f3 is an effective focal length of the third lens. More specifically, f123 and f3 may further satisfy 0 < f 123/f3.ltoreq.0.36. The ratio relation of the combined focal length of the first lens, the second lens and the third lens to the effective focal length of the third lens is reasonably selected, and the long-focus characteristic of the lens can be realized while the aberration is corrected. Meanwhile, the method is beneficial to enabling the degree of freedom of the change of the lens surface to be higher, so that the capability of the optical imaging lens for correcting astigmatism and field curvature is improved.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the condition-3 < SAG42/SAG51 < -0.5, wherein SAG42 is an on-axis distance from an intersection point of an image side surface and an optical axis of the fourth lens to an effective radius vertex of the image side surface of the fourth lens, and SAG51 is an on-axis distance from an intersection point of an object side surface and the optical axis of the fifth lens to an effective radius vertex of the object side surface of the fifth lens. More specifically, SAG42 and SAG51 may further satisfy-2.56.ltoreq.SAG 42/SAG 51.ltoreq.0.99. The ratio of SAG42 to SAG51 is reasonably controlled, so that the angle of the principal ray of the optical imaging lens is adjusted, the relative brightness of the optical imaging lens can be effectively improved, and the image surface definition is improved.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 0 < f45/f67 < 0.6, where f45 is a combined focal length of the fourth lens and the fifth lens, and f67 is a combined focal length of the sixth lens and the seventh lens. More specifically, f45 and f67 may further satisfy 0.26.ltoreq.f45/f67.ltoreq.0.51. F45 and f67 are reasonably controlled, and the long focal length characteristic of the lens can be realized while the aberration is corrected. Meanwhile, the total length of the optical imaging lens is properly shortened, and the requirement of lightening and thinning of the lens is met.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 2.5 < T56/T67 < 3.5, where T56 is a distance between the fifth lens and the sixth lens on the optical axis, and T67 is a distance between the sixth lens and the seventh lens on the optical axis. More specifically, T56 and T67 may further satisfy 2.56.ltoreq.T56/T67.ltoreq.3.37. The ratio between the air interval of the fifth lens and the sixth lens on the optical axis and the air interval of the sixth lens and the seventh lens on the optical axis is reasonably selected, so that the total length of the optical imaging lens is properly shortened, and the requirements of lightening and thinning are met while the long focal length characteristic of the lens is realized. Meanwhile, the structure of the optical imaging lens is adjusted, and the difficulty in lens processing and assembly is reduced.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 0.5 < (CT 2+ct5)/CT 7 < 1.5, CT2 is the center thickness of the second lens on the optical axis, CT5 is the center thickness of the fifth lens on the optical axis, and CT7 is the center thickness of the seventh lens on the optical axis. More specifically, CT2, CT5 and CT7 may further satisfy 0.75.ltoreq.Ct2+Ct5)/CT 7.ltoreq.1.35. The thicknesses of the centers of the second lens, the fifth lens and the seventh lens on the optical axis are reasonably controlled so as to enable enough space to be formed between the lenses under the condition that the total length of the lenses is fixed, so that the degree of freedom of surface variation of the lenses is higher, and the capability of correcting astigmatism and field curvature of the optical imaging lens is improved.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the condition 22 ° < HFOV < 29 °, wherein HFOV is the maximum half field angle of the optical imaging lens. More specifically, the HFOV may further satisfy 23.9 HFOV 26.3. The maximum half field angle of the optical imaging lens is reasonably controlled, so that the optical imaging lens meets the long-focus characteristic and has better aberration balancing capability, the deflection angle of the main light ray can be reasonably controlled, and the matching degree with the chip is improved.
In an exemplary embodiment, the optical imaging lens may further include a diaphragm to improve imaging quality of the lens. Alternatively, the diaphragm may be disposed between the fourth lens and the fifth lens and closely cling to the image side surface of the fourth lens. Those skilled in the art will appreciate that the diaphragm may be positioned at other suitable locations as desired.
Optionally, the optical imaging lens may further include a filter for correcting color deviation and/or a protective glass for protecting a photosensitive element located on the imaging surface.
The optical imaging lens according to the above embodiment of the present application may employ a plurality of lenses, for example, seven 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 lens can be effectively reduced, the sensitivity of the lens can be reduced, and the processability of the lens can be improved, so that the optical imaging lens is more beneficial to production and processing and is applicable to portable electronic products. The optical imaging lens with the configuration can also have the beneficial effects of long focal length, good processing performance, miniaturization, high imaging quality and the like.
In an embodiment of the present application, at least one of the mirrors of each 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 advantages of improving distortion aberration and improving astigmatic aberration. By adopting the aspherical lens, aberration occurring at the time of imaging can be eliminated as much as possible, thereby improving imaging quality.
According to the seven-piece type tele lens adopting the aspheric surface, ideal magnification and good imaging effect can be obtained, the lens is suitable for remote shooting, a shot main body in a disordered environment can be highlighted, and the lens has higher imaging quality than similar products on the same shooting distance.
However, it will be appreciated by those skilled in the art that the number of lenses making up the optical imaging lens can be varied to achieve the various results and advantages described in this specification without departing from the technical solution claimed in the present application. For example, although seven lenses are described as an example in the embodiment, the optical imaging lens is not limited to include seven lenses. The optical imaging lens may also include other numbers of lenses, if desired.
Specific examples of the optical imaging lens applicable to the above-described embodiments are further described below with reference to the accompanying drawings.
Example 1
An optical imaging lens according to embodiment 1 of the present application is described below with reference to fig. 1 to 2D. Fig. 1 shows a schematic configuration diagram of an optical imaging lens according to embodiment 1 of the present application.
As shown in fig. 1, an optical imaging lens according to an exemplary embodiment of the present application sequentially includes, along an optical axis from an object side to an image side: a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a stop STO, a fifth lens E5, a sixth lens E6, a seventh lens E7, an optical filter E8, and an imaging surface S17.
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 positive 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 concave, 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 concave 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 convex and an image-side surface S12 thereof is concave. The seventh lens element E7 has positive refractive power, wherein an object-side surface S13 thereof is convex, and an image-side surface S14 thereof is concave. The filter E8 has an object side surface S15 and an image side surface S16. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging surface S17.
Table 1 shows the surface types, the radii of curvature, the thicknesses, the materials, and the cone coefficients of the respective lenses of the optical imaging lens of example 1, in which the units of the radii of curvature and the thicknesses are 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 to the seventh lens element E7 are aspheric. In the present embodiment, the surface shape 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 curve of the aspheric surfaceRate, c=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 aspherical i-th order. Table 2 below shows the higher order coefficients A that can be used for each of the aspherical mirrors S1-S14 in example 1 4 、A 6 、A 8 、A 10 、A 12 、A 14 、A 16 、A 18 And A 20 。
TABLE 2
Table 3 shows the effective focal lengths f1 to f7 of the respective lenses in embodiment 1, the total effective focal length f of the optical imaging lens, the distance TTL on the optical axis from the object side surface S1 to the imaging surface S17 of the first lens E1, half the diagonal length ImgH of the effective pixel region on the imaging surface S17, and the maximum half field angle HFOV.
f1(mm) 3.95 f7(mm) 11.89
f2(mm) 40.47 f(mm) 5.61
f3(mm) 10.45 TTL(mm) 5.55
f4(mm) -3.59 ImgH(mm) 2.75
f5(mm) 85.57 HFOV(°) 26.3
f6(mm) -6.06
TABLE 3 Table 3
The optical imaging lens in embodiment 1 satisfies:
t56/(t12+t23)/5=2.39, where T56 is the distance between the fifth lens E5 and the sixth lens E6 on the optical axis, T12 is the distance between the first lens E1 and the second lens E2 on the optical axis, and T23 is the distance between the second lens E2 and the third lens E3 on the optical axis;
r8/r12=1.38, where R8 is the radius of curvature of the image-side surface S8 of the fourth lens element E4, and R12 is the radius of curvature of the image-side surface S12 of the sixth lens element E6;
f6/f1= -1.53, where f6 is the effective focal length of the sixth lens E6 and f1 is the effective focal length of the first lens E1;
r7/r1= -6.39, wherein R7 is the radius of curvature of the object-side surface S7 of the fourth lens element E4, and R1 is the radius of curvature of the object-side surface S1 of the first lens element E1;
r1/r3=0.37, wherein R1 is a radius of curvature of the object side surface S1 of the first lens element E1, and R3 is a radius of curvature of the object side surface S3 of the second lens element E2;
f123/f3=0.27, where f123 is the combined focal length of the first lens E1, the second lens E2 and the third lens E3, and f3 is the effective focal length of the third lens E3;
SAG42/SAG 51= -1.24, wherein SAG42 is an on-axis distance from an intersection point of the image side surface S8 of the fourth lens element E4 and the optical axis to an apex of an effective radius of the image side surface S8 of the fourth lens element E4, and SAG51 is an on-axis distance from an intersection point of the object side surface S9 of the fifth lens element E5 and the optical axis to an apex of an effective radius of the object side surface S9 of the fifth lens element E5;
f45/f67=0.32, where f45 is the combined focal length of the fourth lens E4 and the fifth lens E5, and f67 is the combined focal length of the sixth lens E6 and the seventh lens E7;
t56/t67=3.08, where T56 is the distance between the fifth lens E5 and the sixth lens E6 on the optical axis, and T67 is the distance between the sixth lens E6 and the seventh lens E7 on the optical axis;
(CT 2+ CT 5)/CT 7 = 0.96, wherein CT2 is the center thickness of the second lens E2 on the optical axis, CT5 is the center thickness of the fifth lens E5 on the optical axis, and CT7 is the center thickness of the seventh lens E7 on the optical axis.
Fig. 2A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 1, which indicates the deviation of the converging focus after light rays of different wavelengths pass through the lens. Fig. 2B shows an astigmatism curve of the optical imaging lens of embodiment 1, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 2C shows a distortion curve of the optical imaging lens of embodiment 1, which represents the corresponding distortion magnitude values at different image heights. Fig. 2D shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 1, which represents deviations of light rays at different image heights on an imaging plane after passing through the lens. As can be seen from fig. 2A to 2D, the optical imaging lens provided in embodiment 1 can achieve good imaging quality.
Example 2
An optical imaging lens according to embodiment 2 of the present application is described below with reference to fig. 3 to 4D. In this embodiment and the following embodiments, descriptions of portions similar to embodiment 1 will be omitted for brevity. Fig. 3 shows a schematic configuration of an optical imaging lens according to embodiment 2 of the present application.
As shown in fig. 3, the optical imaging lens according to the exemplary embodiment of the present application sequentially includes, from an object side to an image side along an optical axis: a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a stop STO, a fifth lens E5, a sixth lens E6, a seventh lens E7, an optical filter E8, and an imaging surface S17.
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 concave, 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 concave 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 convex and an image-side surface S12 thereof is concave. The seventh lens element E7 has positive refractive power, wherein an object-side surface S13 thereof is convex, and an image-side surface S14 thereof is concave. The filter E8 has an object side surface S15 and an image side surface S16. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging surface S17.
Table 4 shows the surface types, the radii of curvature, the thicknesses, the materials, and the cone coefficients of the respective lenses of the optical imaging lens of example 2, in which the units of the radii of curvature and the thicknesses are millimeters (mm).
TABLE 4 Table 4
As can be seen from table 4, in embodiment 2, the object side surface and the image side surface of any one of the first lens element E1 to the seventh lens element E7 are aspherical surfaces. Table 5 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 2, wherein each of the aspherical surface types can be defined by the formula (1) given in example 1 above.
Face number A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -5.0309E-03 -1.6057E-02 4.2933E-02 -7.3452E-02 7.1977E-02 -4.2551E-02 1.4558E-02 -2.6013E-03 1.7738E-04
S2 3.4492E-03 2.1404E-01 -5.3526E-01 7.0210E-01 -5.2521E-01 2.1188E-01 -3.4895E-02 -2.3764E-03 1.0775E-03
S3 -9.8470E-03 3.2559E-01 -7.8176E-01 9.8480E-01 -6.6762E-01 2.0699E-01 1.9774E-03 -1.6795E-02 2.8522E-03
S4 -2.5534E-02 6.8113E-01 -2.2447E+00 3.9065E+00 -4.2549E+00 3.0735E+00 -1.4390E+00 3.9195E-01 -4.6569E-02
S5 -9.5690E-04 5.4002E-01 -1.8858E+00 3.3493E+00 -3.7020E+00 2.6994E+00 -1.2545E+00 3.3139E-01 -3.7382E-02
S6 -1.2791E-02 7.2166E-02 -2.6563E-01 5.7573E-01 -7.9428E-01 7.3072E-01 -4.2528E-01 1.3871E-01 -1.9176E-02
S7 3.1394E-02 6.2894E-02 -4.3762E-02 -2.7146E-01 1.0158E+00 -1.6202E+00 1.3824E+00 -6.1031E-01 1.0989E-01
S8 2.5272E-02 5.4429E-01 -4.5974E+00 2.5628E+01 -9.0428E+01 2.0081E+02 -2.7153E+02 2.0379E+02 -6.4946E+01
S9 -1.2586E-01 -4.2118E-01 3.9401E+00 -2.1475E+01 7.2369E+01 -1.5329E+02 1.9842E+02 -1.4335E+02 4.4278E+01
S10 -8.6751E-02 1.5318E-01 -8.8742E-01 3.9754E+00 -1.0670E+01 1.7560E+01 -1.7252E+01 9.3018E+00 -2.1147E+00
S11 -1.5132E-01 -4.3369E-02 2.4372E-01 -4.4880E-01 4.9631E-01 -3.3731E-01 1.3684E-01 -3.0127E-02 2.7556E-03
S12 -2.9004E-01 2.1640E-01 -1.8808E-01 1.2723E-01 -6.7576E-02 2.6585E-02 -7.0892E-03 1.1136E-03 -7.6357E-05
S13 -3.9655E-02 4.0350E-02 -2.1742E-02 4.4485E-03 4.9779E-04 -4.3224E-04 8.9360E-05 -8.4435E-06 3.1134E-07
S14 -6.3263E-02 3.1317E-02 -1.2992E-02 5.0092E-03 -1.8310E-03 4.9224E-04 -8.0750E-05 7.1514E-06 -2.6414E-07
TABLE 5
Table 6 shows the effective focal lengths f1 to f7 of the respective lenses in embodiment 2, the total effective focal length f of the optical imaging lens, the distance TTL on the optical axis from the object side surface S1 to the imaging surface S17 of the first lens E1, half the diagonal length ImgH of the effective pixel region on the imaging surface S17, and the maximum half field angle HFOV.
f1(mm) 4.04 f7(mm) 12.72
f2(mm) -499.97 f(mm) 5.61
f3(mm) 7.93 TTL(mm) 5.55
f4(mm) -3.72 ImgH(mm) 2.75
f5(mm) 72.39 HFOV(°) 26.3
f6(mm) -5.89
TABLE 6
Fig. 4A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 2, which indicates the deviation of the converging focus after light rays of different wavelengths pass through the lens. Fig. 4B shows an astigmatism curve of the optical imaging lens of embodiment 2, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 4C shows a distortion curve of the optical imaging lens of embodiment 2, which represents the corresponding distortion magnitude values at different image heights. Fig. 4D shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 2, which represents deviations of light rays at different image heights on an imaging plane after passing through the lens. As can be seen from fig. 4A to 4D, the optical imaging lens provided in embodiment 2 can achieve good imaging quality.
Example 3
An optical imaging lens according to embodiment 3 of the present application is described below with reference to fig. 5 to 6D. Fig. 5 shows a schematic configuration diagram of an optical imaging lens according to embodiment 3 of the present application.
As shown in fig. 5, the optical imaging lens according to the exemplary embodiment of the present application sequentially includes, from an object side to an image side along an optical axis: a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a stop STO, a fifth lens E5, a sixth lens E6, a seventh lens E7, an optical filter E8, and an imaging surface S17.
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 positive refractive power, wherein an object-side surface S3 thereof is convex, and an image-side surface S4 thereof is convex. The third lens element E3 has negative refractive power, wherein an object-side surface S5 thereof is concave and an image-side surface S6 thereof is convex. The fourth lens element E4 has negative refractive power, wherein an object-side surface S7 thereof is concave, and an image-side surface S8 thereof is concave. The fifth lens element E5 has positive refractive power, wherein an object-side surface S9 thereof is concave 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 convex and an image-side surface S12 thereof is concave. The seventh lens element E7 has positive refractive power, wherein an object-side surface S13 thereof is convex, and an image-side surface S14 thereof is concave. The filter E8 has an object side surface S15 and an image side surface S16. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging surface S17.
Table 7 shows the surface types, the radii of curvature, the thicknesses, the materials, and the cone coefficients of the respective lenses of the optical imaging lens of example 3, in which the units of the radii of curvature and the thicknesses are millimeters (mm).
TABLE 7
As is clear from table 7, in embodiment 3, the object side surface and the image side surface of any one of the first lens element E1 to the seventh lens element E7 are aspherical surfaces. Table 8 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 3, wherein each of the aspherical surface types can be defined by the formula (1) given in example 1 above.
Face number A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -5.7694E-03 -1.1894E-02 3.3478E-02 -6.0429E-02 6.0713E-02 -3.6686E-02 1.2968E-02 -2.4692E-03 1.9084E-04
S2 2.1075E-02 1.2556E-01 -3.4048E-01 4.4708E-01 -3.1877E-01 1.1181E-01 -8.2165E-03 -5.5519E-03 1.1478E-03
S3 2.1088E-02 1.3176E-01 -3.0509E-01 2.9859E-01 -4.5214E-02 -1.5722E-01 1.3832E-01 -4.7216E-02 5.9800E-03
S4 4.4036E-03 3.6217E-01 -1.1306E+00 1.8743E+00 -1.8792E+00 1.1808E+00 -4.5560E-01 9.8692E-02 -9.1798E-03
S5 1.1810E-02 3.7212E-01 -1.2416E+00 2.1673E+00 -2.3241E+00 1.6017E+00 -6.9278E-01 1.7048E-01 -1.8119E-02
S6 -2.1564E-02 1.2693E-01 -4.6949E-01 1.0090E+00 -1.3622E+00 1.2041E+00 -6.7950E-01 2.2120E-01 -3.1402E-02
S7 5.4077E-02 4.5048E-02 -1.0364E-01 9.6570E-04 4.8346E-01 -1.0196E+00 9.8008E-01 -4.5998E-01 8.4974E-02
S8 3.8469E-02 7.1084E-01 -6.6809E+00 3.8458E+01 -1.3826E+02 3.1243E+02 -4.3041E+02 3.2988E+02 -1.0773E+02
S9 -1.1038E-01 -4.9400E-01 4.5758E+00 -2.5183E+01 8.5876E+01 -1.8366E+02 2.3936E+02 -1.7354E+02 5.3496E+01
S10 -7.6795E-02 1.0729E-01 -6.0875E-01 2.7154E+00 -7.1307E+00 1.1480E+01 -1.1026E+01 5.8006E+00 -1.2865E+00
S11 -1.2392E-01 -9.1106E-03 6.6616E-02 -7.1423E-02 5.1340E-02 -2.4722E-02 7.8408E-03 -1.4811E-03 1.2291E-04
S12 -1.9741E-01 9.4406E-02 -5.3972E-02 2.5794E-02 -1.2843E-02 5.7885E-03 -1.7749E-03 3.0570E-04 -2.2236E-05
S13 -2.0030E-02 4.6379E-03 8.7157E-03 -1.1642E-02 5.8770E-03 -1.5435E-03 2.2352E-04 -1.6686E-05 4.8203E-07
S14 -6.3292E-02 2.7973E-02 -1.2946E-02 6.1057E-03 -2.5516E-03 7.3932E-04 -1.2955E-04 1.2418E-05 -5.0536E-07
TABLE 8
Table 9 shows the effective focal lengths f1 to f7 of the respective lenses in embodiment 3, the total effective focal length f of the optical imaging lens, the distance TTL on the optical axis from the object side surface S1 to the imaging surface S17 of the first lens E1, half the diagonal length ImgH of the effective pixel region on the imaging surface S17, and the maximum half field angle HFOV.
f1(mm) 3.92 f7(mm) 12.13
f2(mm) 8.82 f(mm) 5.61
f3(mm) -999.60 TTL(mm) 5.55
f4(mm) -3.66 ImgH(mm) 2.75
f5(mm) 96.57 HFOV(°) 26.3
f6(mm) -6.09
TABLE 9
Fig. 6A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 3, which indicates a convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 6B shows an astigmatism curve of the optical imaging lens of embodiment 3, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 6C shows a distortion curve of the optical imaging lens of embodiment 3, which represents the corresponding distortion magnitude values at different image heights. Fig. 6D shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 3, which represents deviations of light rays at different image heights on an imaging plane after passing through the lens. As can be seen from fig. 6A to 6D, the optical imaging lens provided in embodiment 3 can achieve good imaging quality.
Example 4
An optical imaging lens according to embodiment 4 of the present application is described below with reference to fig. 7 to 8D. Fig. 7 shows a schematic configuration diagram of an optical imaging lens according to embodiment 4 of the present application.
As shown in fig. 7, an optical imaging lens according to an exemplary embodiment of the present application sequentially includes, along an optical axis from an object side to an image side: a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a stop STO, a fifth lens E5, a sixth lens E6, a seventh lens E7, an optical filter E8, and an imaging surface S17.
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 positive 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 concave, and an image-side surface S8 thereof is concave. The fifth lens element E5 has negative refractive power, wherein an object-side surface S9 thereof is concave 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 convex and an image-side surface S12 thereof is concave. The seventh lens element E7 has positive refractive power, wherein an object-side surface S13 thereof is convex, and an image-side surface S14 thereof is concave. The filter E8 has an object side surface S15 and an image side surface S16. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging surface S17.
Table 10 shows the surface types, the radii of curvature, the thicknesses, the materials, and the cone coefficients of the respective lenses of the optical imaging lens of example 4, in which the units of the radii of curvature and the thicknesses are millimeters (mm).
Table 10
As can be seen from table 10, in example 4, the object side surface and the image side surface of any one of the first lens element E1 to the seventh lens element E7 are aspherical surfaces. Table 11 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 4, wherein each of the aspherical surface types can be defined by the formula (1) given in example 1 above.
TABLE 11
Table 12 shows effective focal lengths f1 to f7 of the respective lenses in embodiment 4, a total effective focal length f of the optical imaging lens, a distance TTL on the optical axis from the object side surface S1 to the imaging surface S17 of the first lens E1, a half of the diagonal length ImgH of the effective pixel region on the imaging surface S17, and a maximum half field angle HFOV.
f1(mm) 4.01 f7(mm) 12.77
f2(mm) 40.27 f(mm) 5.61
f3(mm) 10.13 TTL(mm) 5.55
f4(mm) -3.83 ImgH(mm) 2.75
f5(mm) -1001.57 HFOV(°) 26.3
f6(mm) -6.05
Table 12
Fig. 8A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 4, which indicates a convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 8B shows an astigmatism curve of the optical imaging lens of embodiment 4, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 8C shows a distortion curve of the optical imaging lens of embodiment 4, which represents the corresponding distortion magnitude values at different image heights. Fig. 8D shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 4, which represents deviations of light rays at different image heights on an imaging plane after passing through the lens. As can be seen from fig. 8A to 8D, the optical imaging lens provided in embodiment 4 can achieve good imaging quality.
Example 5
An optical imaging lens according to embodiment 5 of the present application is described below with reference to fig. 9 to 10D. Fig. 9 shows a schematic configuration of an optical imaging lens according to embodiment 5 of the present application.
As shown in fig. 9, an optical imaging lens according to an exemplary embodiment of the present application sequentially includes, along an optical axis from an object side to an image side: a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a stop STO, a fifth lens E5, a sixth lens E6, a seventh lens E7, an optical filter E8, and an imaging surface S17.
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 positive 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 concave, 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 concave 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 convex and an image-side surface S12 thereof is concave. The seventh lens element E7 has negative refractive power, wherein an object-side surface S13 thereof is convex, and an image-side surface S14 thereof is concave. The filter E8 has an object side surface S15 and an image side surface S16. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging surface S17.
Table 13 shows the surface types, the radii of curvature, the thicknesses, the materials, and the cone coefficients of the respective lenses of the optical imaging lens of example 5, in which the units of the radii of curvature and the thicknesses are millimeters (mm).
TABLE 13
As is clear from table 13, in example 5, the object side surface and the image side surface of any one of the first lens element E1 to the seventh lens element E7 are aspherical surfaces. Table 14 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 5, wherein each of the aspherical surface types can be defined by the formula (1) given in example 1 above.
Face number A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -4.0871E-03 -2.2860E-02 6.3020E-02 -1.0890E-01 1.1107E-01 -6.9528E-02 2.5954E-02 -5.3073E-03 4.5397E-04
S2 1.8352E-02 1.5595E-01 -4.7142E-01 7.0284E-01 -5.8143E-01 2.6033E-01 -5.2531E-02 1.7112E-04 1.0429E-03
S3 1.4436E-02 2.2200E-01 -5.9581E-01 7.4042E-01 -3.6927E-01 -7.9314E-02 1.7397E-01 -7.2090E-02 1.0087E-02
S4 -3.5542E-02 7.1807E-01 -2.3824E+00 4.1446E+00 -4.2674E+00 2.6958E+00 -1.0270E+00 2.1660E-01 -1.9421E-02
S5 -2.0531E-02 6.3975E-01 -2.2145E+00 4.0402E+00 -4.4759E+00 3.1386E+00 -1.3643E+00 3.3501E-01 -3.5430E-02
S6 -1.7865E-02 1.1570E-01 -4.0713E-01 8.5899E-01 -1.1708E+00 1.0682E+00 -6.2606E-01 2.0966E-01 -3.0173E-02
S7 3.6270E-02 8.7926E-02 -1.8095E-01 1.8021E-01 7.1719E-02 -3.3770E-01 2.9577E-01 -9.6873E-02 6.6398E-03
S8 1.0029E-02 8.2764E-01 -7.1062E+00 3.8940E+01 -1.3371E+02 2.8895E+02 -3.8085E+02 2.7936E+02 -8.7331E+01
S9 -1.1351E-01 -5.3483E-01 4.8550E+00 -2.5388E+01 8.2550E+01 -1.6887E+02 2.1131E+02 -1.4759E+02 4.3992E+01
S10 -6.9383E-02 6.1199E-02 -1.7491E-01 6.7174E-01 -1.4764E+00 2.0107E+00 -1.6366E+00 7.3027E-01 -1.3808E-01
S11 -5.0524E-02 -2.5500E-01 3.6967E-01 -2.9460E-01 1.5540E-01 -5.1608E-02 9.9375E-03 -9.6683E-04 3.3416E-05
S12 -7.5697E-02 -1.5313E-01 2.2201E-01 -1.8468E-01 1.0106E-01 -3.6673E-02 8.5454E-03 -1.1561E-03 6.8592E-05
S13 -4.3401E-02 7.4187E-02 -8.4592E-02 5.6170E-02 -2.3562E-02 6.3079E-03 -1.0375E-03 9.5372E-05 -3.7597E-06
S14 -8.7296E-02 6.4531E-02 -4.0165E-02 1.8535E-02 -5.8400E-03 1.1636E-03 -1.3822E-04 9.1883E-06 -2.8531E-07
TABLE 14
Table 15 shows effective focal lengths f1 to f7 of the respective lenses in embodiment 5, a total effective focal length f of the optical imaging lens, a distance TTL on the optical axis from the object side surface S1 to the imaging surface S17 of the first lens E1, a half of the diagonal length ImgH of the effective pixel region on the imaging surface S17, and a maximum half field angle HFOV.
f1(mm) 3.98 f7(mm) -499.89
f2(mm) 47.68 f(mm) 5.61
f3(mm) 10.55 TTL(mm) 5.55
f4(mm) -3.93 ImgH(mm) 2.75
f5(mm) 70.70 HFOV(°) 26.3
f6(mm) -9.00
TABLE 15
Fig. 10A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 5, which indicates a convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 10B shows an astigmatism curve of the optical imaging lens of embodiment 5, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 10C shows a distortion curve of the optical imaging lens of embodiment 5, which represents the corresponding distortion magnitude values at different image heights. Fig. 10D shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 5, which represents the deviation of light rays at different image heights on the imaging plane after passing through the lens. As can be seen from fig. 10A to 10D, the optical imaging lens provided in embodiment 5 can achieve good imaging quality.
Example 6
An optical imaging lens according to embodiment 6 of the present application is described below with reference to fig. 11 to 12D. Fig. 11 shows a schematic structural diagram of an optical imaging lens according to embodiment 6 of the present application.
As shown in fig. 11, an optical imaging lens according to an exemplary embodiment of the present application sequentially includes, along an optical axis from an object side to an image side: a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a stop STO, a fifth lens E5, a sixth lens E6, a seventh lens E7, an optical filter E8, and an imaging surface S17.
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 convex. The second lens element E2 has negative refractive power, wherein an object-side surface S3 thereof is convex, and an image-side surface S4 thereof is concave. The third lens element E3 has positive refractive power, wherein an object-side surface S5 thereof is convex, and an image-side surface S6 thereof is concave. The fourth lens element E4 has negative refractive power, wherein an object-side surface S7 thereof is concave, and an image-side surface S8 thereof is concave. The fifth lens element E5 has positive refractive power, wherein an object-side surface S9 thereof is concave 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 convex and an image-side surface S12 thereof is concave. The seventh lens element E7 has positive refractive power, wherein an object-side surface S13 thereof is convex, and an image-side surface S14 thereof is concave. The filter E8 has an object side surface S15 and an image side surface S16. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging surface S17.
Table 16 shows the surface types, the radii of curvature, the thicknesses, the materials, and the cone coefficients of the respective lenses of the optical imaging lens of example 6, in which the units of the radii of curvature and the thicknesses are millimeters (mm).
/>
Table 16
As is clear from table 16, in example 6, the object side surface and the image side surface of any one of the first lens element E1 to the seventh lens element E7 are aspherical surfaces. Table 17 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 6, wherein each of the aspherical surface types can be defined by the formula (1) given in example 1 above.
Face number A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -6.1751E-03 -1.4711E-02 3.7495E-02 -6.6514E-02 6.8669E-02 -4.4108E-02 1.7097E-02 -3.6801E-03 3.3601E-04
S2 3.1535E-02 6.6638E-02 -1.8140E-01 2.3596E-01 -1.8042E-01 8.0459E-02 -1.9271E-02 1.8330E-03 2.7456E-05
S3 2.3753E-02 9.8601E-02 -1.9187E-01 1.5779E-01 -6.8596E-03 -8.6383E-02 6.5401E-02 -2.0311E-02 2.3926E-03
S4 -2.3673E-04 3.1806E-01 -7.6780E-01 7.8816E-01 -2.2638E-01 -2.3689E-01 2.3896E-01 -8.2699E-02 1.0404E-02
S5 1.3780E-02 3.0281E-01 -7.9347E-01 8.8510E-01 -3.4517E-01 -1.7452E-01 2.3801E-01 -9.4004E-02 1.3385E-02
S6 -1.9562E-02 1.2203E-01 -4.4686E-01 9.8910E-01 -1.4078E+00 1.3144E+00 -7.7430E-01 2.5888E-01 -3.7224E-02
S7 5.6782E-02 1.4038E-02 4.7624E-02 -5.0041E-01 1.5334E+00 -2.3857E+00 2.0534E+00 -9.2857E-01 1.7264E-01
S8 3.8548E-02 7.0288E-01 -6.5758E+00 3.7316E+01 -1.3220E+02 2.9447E+02 -3.9985E+02 3.0196E+02 -9.7100E+01
S9 -1.1319E-01 -4.8695E-01 4.3790E+00 -2.3693E+01 7.9922E+01 -1.6934E+02 2.1896E+02 -1.5763E+02 4.8300E+01
S10 -8.5010E-02 1.3825E-01 -9.4187E-01 4.4524E+00 -1.2269E+01 2.0631E+01 -2.0651E+01 1.1313E+01 -2.6119E+00
S11 -1.2078E-01 -1.4408E-02 5.4697E-02 -5.3736E-02 4.1852E-02 -2.4046E-02 9.4036E-03 -2.1250E-03 2.0102E-04
S12 -2.0741E-01 1.1660E-01 -9.1811E-02 6.2849E-02 -3.6130E-02 1.5323E-02 -4.2434E-03 6.7251E-04 -4.5964E-05
S13 -2.9433E-02 2.3758E-02 -8.9961E-03 -1.2143E-03 1.8613E-03 -5.6582E-04 7.9998E-05 -5.1833E-06 1.0100E-07
S14 -5.4133E-02 1.8098E-02 -4.5047E-03 1.3649E-03 -7.9296E-04 3.0476E-04 -6.1423E-05 6.3116E-06 -2.6626E-07
TABLE 17
Table 18 shows the effective focal lengths f1 to f7 of the respective lenses in embodiment 6, the total effective focal length f of the optical imaging lens, the distance TTL on the optical axis from the object side surface S1 to the imaging surface S17 of the first lens E1, half the diagonal length ImgH of the effective pixel region on the imaging surface S17, and the maximum half field angle HFOV.
f1(mm) 3.44 f7(mm) 12.25
f2(mm) -284.28 f(mm) 5.61
f3(mm) 12.85 TTL(mm) 5.55
f4(mm) -3.53 ImgH(mm) 2.75
f5(mm) 53.54 HFOV(°) 26.2
f6(mm) -6.08
TABLE 18
Fig. 12A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 6, which indicates a convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 12B shows an astigmatism curve of the optical imaging lens of embodiment 6, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 12C shows a distortion curve of the optical imaging lens of embodiment 6, which represents the corresponding distortion magnitude values at different image heights. Fig. 12D shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 6, which represents the deviation of light rays at different image heights on the imaging plane after passing through the lens. As can be seen from fig. 12A to 12D, the optical imaging lens provided in embodiment 6 can achieve good imaging quality.
Example 7
An optical imaging lens according to embodiment 7 of the present application is described below with reference to fig. 13 to 14D. Fig. 13 shows a schematic configuration diagram of an optical imaging lens according to embodiment 7 of the present application.
As shown in fig. 13, an optical imaging lens according to an exemplary embodiment of the present application sequentially includes, along an optical axis from an object side to an image side: a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a stop STO, a fifth lens E5, a sixth lens E6, a seventh lens E7, an optical filter E8, and an imaging surface S17.
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 positive refractive power, wherein an object-side surface S3 thereof is convex, and an image-side surface S4 thereof is concave. The third lens element E3 has positive refractive power, wherein an object-side surface S5 thereof is convex, and an image-side surface S6 thereof is concave. The fourth lens element E4 has negative refractive power, wherein an object-side surface S7 thereof is concave, and an image-side surface S8 thereof is concave. The fifth lens element E5 has positive refractive power, wherein an object-side surface S9 thereof is concave 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 convex and an image-side surface S12 thereof is concave. The seventh lens element E7 has positive refractive power, wherein an object-side surface S13 thereof is convex, and an image-side surface S14 thereof is concave. The filter E8 has an object side surface S15 and an image side surface S16. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging surface S17.
Table 19 shows the surface types, the radii of curvature, the thicknesses, the materials, and the cone coefficients of the respective lenses of the optical imaging lens of example 7, in which the units of the radii of curvature and the thicknesses are millimeters (mm).
TABLE 19
As is clear from table 19, in example 7, the object side surface and the image side surface of any one of the first lens element E1 to the seventh lens element E7 are aspherical surfaces. Table 20 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 7, wherein each of the aspherical surface types can be defined by the formula (1) given in example 1 above.
Table 20
Table 21 shows effective focal lengths f1 to f7 of the respective lenses in embodiment 7, a total effective focal length f of the optical imaging lens, a distance TTL on the optical axis from the object side surface S1 to the imaging surface S17 of the first lens E1, a half of the diagonal length ImgH of the effective pixel region on the imaging surface S17, and a maximum half field angle HFOV.
f1(mm) 3.99 f7(mm) 12.31
f2(mm) 40.38 f(mm) 5.61
f3(mm) 10.44 TTL(mm) 5.55
f4(mm) -3.72 ImgH(mm) 2.75
f5(mm) 111.73 HFOV(°) 23.9
f6(mm) -5.96
Table 21
Fig. 14A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 7, which indicates a convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 14B shows an astigmatism curve of the optical imaging lens of embodiment 7, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 14C shows a distortion curve of the optical imaging lens of embodiment 7, which represents distortion magnitude values corresponding to different image heights. Fig. 14D shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 7, which represents the deviation of light rays at different image heights on the imaging plane after passing through the lens. As can be seen from fig. 14A to 14D, the optical imaging lens provided in embodiment 7 can achieve good imaging quality.
Example 8
An optical imaging lens according to embodiment 8 of the present application is described below with reference to fig. 15 to 16D. Fig. 15 shows a schematic structural diagram of an optical imaging lens according to embodiment 8 of the present application.
As shown in fig. 15, an optical imaging lens according to an exemplary embodiment of the present application sequentially includes, along an optical axis from an object side to an image side: a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a stop STO, a fifth lens E5, a sixth lens E6, a seventh lens E7, an optical filter E8, and an imaging surface S17.
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 positive 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 concave, 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 convex and an image-side surface S12 thereof is concave. The seventh lens element E7 has positive refractive power, wherein an object-side surface S13 thereof is convex, and an image-side surface S14 thereof is concave. The filter E8 has an object side surface S15 and an image side surface S16. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging surface S17.
Table 22 shows the surface types, the radii of curvature, the thicknesses, the materials, and the cone coefficients of the respective lenses of the optical imaging lens of example 8, in which the units of the radii of curvature and the thicknesses are millimeters (mm).
Table 22
As can be seen from table 22, in example 8, the object side surface and the image side surface of any one of the first lens element E1 to the seventh lens element E7 are aspherical surfaces. Table 23 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 8, wherein each of the aspherical surface types can be defined by the formula (1) given in example 1 above.
Face number A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -5.8251E-03 -1.2678E-02 3.3375E-02 -5.7683E-02 5.7812E-02 -3.5748E-02 1.3163E-02 -2.6553E-03 2.2218E-04
S2 2.8615E-02 7.5375E-02 -2.1662E-01 2.9496E-01 -2.1859E-01 7.9760E-02 -6.6289E-03 -3.8358E-03 8.1970E-04
S3 2.9267E-02 1.0569E-01 -2.6302E-01 2.8536E-01 -9.2139E-02 -8.5954E-02 9.2427E-02 -3.2550E-02 4.0800E-03
S4 -1.1802E-02 5.0272E-01 -1.6226E+00 2.7962E+00 -2.9149E+00 1.9033E+00 -7.6296E-01 1.7175E-01 -1.6615E-02
S5 -9.5678E-03 4.9251E-01 -1.6643E+00 3.0391E+00 -3.4367E+00 2.4832E+00 -1.1129E+00 2.8062E-01 -3.0318E-02
S6 -2.0608E-02 1.1728E-01 -4.0180E-01 8.7999E-01 -1.2834E+00 1.2425E+00 -7.5726E-01 2.6082E-01 -3.8559E-02
S7 3.8257E-02 1.0252E-01 -1.6912E-01 -7.2353E-02 8.0719E-01 -1.4474E+00 1.2478E+00 -5.2713E-01 8.4439E-02
S8 7.7914E-03 8.3293E-01 -7.3105E+00 4.2949E+01 -1.5976E+02 3.7355E+02 -5.3112E+02 4.1902E+02 -1.4055E+02
S9 -1.2597E-01 -4.1648E-01 4.4899E+00 -2.6485E+01 9.5404E+01 -2.1377E+02 2.8976E+02 -2.1690E+02 6.8565E+01
S10 -1.0540E-01 2.1181E-01 -1.4107E+00 6.6419E+00 -1.9004E+01 3.3449E+01 -3.5232E+01 2.0374E+01 -4.9759E+00
S11 -1.5770E-01 5.1968E-02 2.4195E-03 -7.6997E-02 1.3463E-01 -1.1713E-01 5.7166E-02 -1.4654E-02 1.5175E-03
S12 -2.3436E-01 1.7619E-01 -1.6518E-01 1.2447E-01 -7.2694E-02 3.0634E-02 -8.5525E-03 1.3935E-03 -9.9168E-05
S13 -2.5914E-02 2.1504E-02 -7.5016E-03 -1.5261E-03 2.0134E-03 -6.6975E-04 1.1031E-04 -9.1493E-06 2.9977E-07
S14 -6.1627E-02 3.0731E-02 -1.5541E-02 7.4189E-03 -2.8350E-03 7.3459E-04 -1.1637E-04 1.0097E-05 -3.6745E-07
Table 23
Table 24 shows effective focal lengths f1 to f7 of the respective lenses in embodiment 8, a total effective focal length f of the optical imaging lens, a distance TTL on the optical axis from the object side surface S1 to the imaging surface S17 of the first lens E1, a half of the diagonal length ImgH of the effective pixel region on the imaging surface S17, and a maximum half field angle HFOV.
f1(mm) 3.98 f7(mm) 10.90
f2(mm) 39.67 f(mm) 5.61
f3(mm) 10.35 TTL(mm) 5.55
f4(mm) -3.30 ImgH(mm) 2.75
f5(mm) 28.85 HFOV(°) 26.3
f6(mm) -5.78
Table 24
Fig. 16A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 8, which indicates a convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 16B shows an astigmatism curve of the optical imaging lens of embodiment 8, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 16C shows a distortion curve of the optical imaging lens of embodiment 8, which represents the corresponding distortion magnitude values at different image heights. Fig. 16D shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 8, which represents the deviation of light rays at different image heights on the imaging plane after passing through the lens. As can be seen from fig. 16A to 16D, the optical imaging lens provided in embodiment 8 can achieve good imaging quality.
Example 9
An optical imaging lens according to embodiment 9 of the present application is described below with reference to fig. 17 to 18D. Fig. 17 shows a schematic configuration diagram of an optical imaging lens according to embodiment 9 of the present application.
As shown in fig. 17, an optical imaging lens according to an exemplary embodiment of the present application sequentially includes, along an optical axis from an object side to an image side: a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a stop STO, a fifth lens E5, a sixth lens E6, a seventh lens E7, an optical filter E8, and an imaging surface S17.
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 positive 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 concave, and an image-side surface S8 thereof is concave. The fifth lens element E5 has positive refractive power, wherein an object-side surface S9 thereof is convex, and an image-side surface S10 thereof is concave. The sixth lens element E6 has negative refractive power, wherein an object-side surface S11 thereof is convex and an image-side surface S12 thereof is concave. The seventh lens element E7 has positive refractive power, wherein an object-side surface S13 thereof is convex, and an image-side surface S14 thereof is concave. The filter E8 has an object side surface S15 and an image side surface S16. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging surface S17.
Table 25 shows the surface types, the radii of curvature, the thicknesses, the materials, and the cone coefficients of the respective lenses of the optical imaging lens of example 9, in which the units of the radii of curvature and the thicknesses are millimeters (mm).
/>
Table 25
As is clear from table 25, in example 9, the object side surface and the image side surface of any one of the first lens element E1 to the seventh lens element E7 are aspherical surfaces. Table 26 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 9, wherein each of the aspherical surface types can be defined by the formula (1) given in example 1 above.
Face number A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -5.8132E-03 -1.3245E-02 3.5125E-02 -6.1971E-02 6.3049E-02 -3.9185E-02 1.4412E-02 -2.8886E-03 2.3891E-04
S2 2.4771E-02 1.1077E-01 -3.3182E-01 4.8680E-01 -4.0265E-01 1.8580E-01 -4.2815E-02 2.8868E-03 2.9739E-04
S3 2.3421E-02 1.4776E-01 -3.8617E-01 4.7529E-01 -2.5593E-01 -8.3409E-03 7.4911E-02 -3.1831E-02 4.3187E-03
S4 -1.4793E-02 5.0022E-01 -1.5234E+00 2.4653E+00 -2.4158E+00 1.4907E+00 -5.6870E-01 1.2261E-01 -1.1410E-02
S5 -9.3615E-03 4.7934E-01 -1.5413E+00 2.6682E+00 -2.8973E+00 2.0534E+00 -9.2041E-01 2.3507E-01 -2.5877E-02
S6 -1.9721E-02 1.0854E-01 -3.6624E-01 7.7190E-01 -1.0784E+00 1.0159E+00 -6.1390E-01 2.1241E-01 -3.1776E-02
S7 3.5199E-02 1.0823E-01 -2.0236E-01 6.0605E-02 5.4572E-01 -1.1813E+00 1.1164E+00 -5.0814E-01 8.8525E-02
S8 7.4576E-03 8.3971E-01 -7.2531E+00 4.2005E+01 -1.5409E+02 3.5625E+02 -5.0237E+02 3.9410E+02 -1.3174E+02
S9 -1.2789E-01 -3.2870E-01 3.3761E+00 -1.8647E+01 6.3291E+01 -1.3490E+02 1.7518E+02 -1.2631E+02 3.8511E+01
S10 -1.0683E-01 1.5113E-01 -7.9031E-01 3.4636E+00 -9.3529E+00 1.5567E+01 -1.5492E+01 8.4423E+00 -1.9381E+00
S11 -1.5694E-01 4.1425E-02 3.5073E-02 -1.3454E-01 1.9510E-01 -1.5360E-01 6.9707E-02 -1.6995E-02 1.7076E-03
S12 -2.4819E-01 1.9246E-01 -1.8190E-01 1.3779E-01 -8.1346E-02 3.4819E-02 -9.8601E-03 1.6212E-03 -1.1588E-04
S13 -2.2924E-02 1.4521E-02 1.0322E-03 -7.8135E-03 4.8272E-03 -1.4330E-03 2.3272E-04 -1.9821E-05 6.8825E-07
S14 -6.5526E-02 3.1935E-02 -1.7215E-02 9.2484E-03 -3.8458E-03 1.0454E-03 -1.7076E-04 1.5177E-05 -5.6494E-07
Table 26
Table 27 shows effective focal lengths f1 to f7 of the respective lenses in embodiment 9, a total effective focal length f of the optical imaging lens, a distance TTL on the optical axis from the object side surface S1 to the imaging surface S17 of the first lens E1, a half of the diagonal length ImgH of the effective pixel region on the imaging surface S17, and a maximum half field angle HFOV.
f1(mm) 3.98 f7(mm) 10.06
f2(mm) 40.95 f(mm) 5.61
f3(mm) 10.36 TTL(mm) 5.55
f4(mm) -3.40 ImgH(mm) 2.75
f5(mm) 59.23 HFOV(°) 26.3
f6(mm) -5.94
Table 27
Fig. 18A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 9, which indicates a convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 18B shows an astigmatism curve of the optical imaging lens of embodiment 9, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 18C shows a distortion curve of the optical imaging lens of embodiment 9, which represents the corresponding distortion magnitude values at different image heights. Fig. 18D shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 9, which represents deviations of light rays at different image heights on an imaging plane after passing through the lens. As can be seen from fig. 18A to 18D, the optical imaging lens provided in embodiment 9 can achieve good imaging quality.
Example 10
An optical imaging lens according to embodiment 10 of the present application is described below with reference to fig. 19 to 20D. Fig. 19 shows a schematic structural diagram of an optical imaging lens according to embodiment 10 of the present application.
As shown in fig. 19, an optical imaging lens according to an exemplary embodiment of the present application sequentially includes, along an optical axis from an object side to an image side: a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a stop STO, a fifth lens E5, a sixth lens E6, a seventh lens E7, an optical filter E8, and an imaging surface S17.
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 positive 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 concave, 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 concave 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 seventh lens element E7 has positive refractive power, wherein an object-side surface S13 thereof is convex, and an image-side surface S14 thereof is concave. The filter E8 has an object side surface S15 and an image side surface S16. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging surface S17.
Table 28 shows the surface types, radii of curvature, thicknesses, materials, and cone coefficients of the respective lenses of the optical imaging lens of example 10, wherein the radii of curvature and thicknesses are each in millimeters (mm).
/>
Table 28
As can be seen from table 28, in embodiment 10, the object side surface and the image side surface of any one of the first lens element E1 to the seventh lens element E7 are aspherical surfaces. Table 29 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 10, where each of the aspherical surface types can be defined by the formula (1) given in example 1 above.
Table 29
Table 30 shows effective focal lengths f1 to f7 of the respective lenses in embodiment 10, a total effective focal length f of the optical imaging lens, a distance TTL on the optical axis from an object side surface S1 to an imaging surface S17 of the first lens E1, a half of a diagonal length ImgH of an effective pixel region on the imaging surface S17, and a maximum half field angle HFOV.
f1(mm) 3.98 f7(mm) 11.20
f2(mm) 38.87 f(mm) 5.60
f3(mm) 10.15 TTL(mm) 5.55
f4(mm) -3.63 ImgH(mm) 2.75
f5(mm) 58.77 HFOV(°) 26.2
f6(mm) -5.50
Table 30
Fig. 20A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 10, which indicates the deviation of the converging focus after light rays of different wavelengths pass through the lens. Fig. 20B shows an astigmatism curve of the optical imaging lens of embodiment 10, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 20C shows a distortion curve of the optical imaging lens of embodiment 10, which represents the corresponding distortion magnitude values at different image heights. Fig. 20D shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 10, which represents the deviation of light rays at different image heights on the imaging plane after passing through the lens. As can be seen from fig. 20A to 20D, the optical imaging lens provided in embodiment 10 can achieve good imaging quality.
Example 11
An optical imaging lens according to embodiment 11 of the present application is described below with reference to fig. 21 to 22D. Fig. 21 shows a schematic configuration diagram of an optical imaging lens according to embodiment 11 of the present application.
As shown in fig. 21, an optical imaging lens according to an exemplary embodiment of the present application sequentially includes, along an optical axis from an object side to an image side: a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a stop STO, a fifth lens E5, a sixth lens E6, a seventh lens E7, an optical filter E8, and an imaging surface S17.
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 positive 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 concave, and an image-side surface S8 thereof is concave. The fifth lens element E5 has negative refractive power, wherein an object-side surface S9 thereof is concave 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 convex and an image-side surface S12 thereof is concave. The seventh lens element E7 has positive refractive power, wherein an object-side surface S13 thereof is concave, and an image-side surface S14 thereof is convex. The filter E8 has an object side surface S15 and an image side surface S16. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging surface S17.
Table 31 shows the surface types, the radii of curvature, the thicknesses, the materials, and the cone coefficients of the respective lenses of the optical imaging lens of example 11, in which the units of the radii of curvature and the thicknesses are millimeters (mm).
Table 31
As can be seen from table 31, in example 11, the object side surface and the image side surface of any one of the first lens element E1 to the seventh lens element E7 are aspherical surfaces. Table 32 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 11, where each of the aspherical surface types can be defined by the formula (1) given in example 1 above.
Face number A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -5.7378E-03 -1.3617E-02 3.4992E-02 -5.9587E-02 5.6598E-02 -3.1715E-02 9.9651E-03 -1.5489E-03 7.8247E-05
S2 1.5006E-02 1.6222E-01 -4.3907E-01 5.8362E-01 -4.1065E-01 1.2879E-01 4.5117E-03 -1.2848E-02 2.2467E-03
S3 9.7187E-03 2.1598E-01 -5.0901E-01 5.2772E-01 -1.1604E-01 -2.4486E-01 2.3136E-01 -8.0648E-02 1.0235E-02
S4 -1.9960E-02 5.6641E-01 -1.8537E+00 3.2187E+00 -3.3397E+00 2.1359E+00 -8.2431E-01 1.7582E-01 -1.5901E-02
S5 -4.3402E-03 5.0976E-01 -1.8034E+00 3.3992E+00 -3.9529E+00 2.9330E+00 -1.3464E+00 3.4622E-01 -3.7940E-02
S6 -1.4956E-02 8.0911E-02 -2.5771E-01 5.1208E-01 -6.8552E-01 6.5181E-01 -4.1397E-01 1.5180E-01 -2.3853E-02
S7 3.2809E-02 9.4203E-02 -1.4909E-01 2.5129E-02 3.7131E-01 -6.4536E-01 4.3652E-01 -8.9953E-02 -1.3033E-02
S8 1.4405E-02 7.3962E-01 -6.4184E+00 3.6925E+01 -1.3391E+02 3.0552E+02 -4.2464E+02 3.2800E+02 -1.0783E+02
S9 -1.3517E-01 -3.9467E-01 4.0442E+00 -2.2151E+01 7.4999E+01 -1.5981E+02 2.0832E+02 -1.5160E+02 4.7014E+01
S10 -9.4039E-02 1.4554E-01 -5.0949E-01 1.9165E+00 -4.5299E+00 6.7086E+00 -5.9901E+00 2.9416E+00 -6.0971E-01
S11 -1.0119E-01 -1.5987E-01 3.3576E-01 -3.6721E-01 2.7420E-01 -1.3688E-01 4.3066E-02 -7.6594E-03 5.8398E-04
S12 -1.4382E-01 -4.7013E-02 1.1817E-01 -1.1853E-01 7.4253E-02 -2.9908E-02 7.4234E-03 -1.0267E-03 6.0256E-05
S13 -1.8399E-02 2.5856E-02 -6.3471E-02 6.7247E-02 -3.7921E-02 1.2437E-02 -2.3831E-03 2.4821E-04 -1.0899E-05
S14 -6.4469E-02 3.3640E-02 -2.7730E-02 2.0247E-02 -8.6600E-03 2.0854E-03 -2.7733E-04 1.8903E-05 -5.2220E-07
Table 32
Table 33 shows effective focal lengths f1 to f7 of the respective lenses in embodiment 11, a total effective focal length f of the optical imaging lens, a distance TTL on the optical axis from an object side surface S1 to an imaging surface S17 of the first lens E1, a half of a diagonal length ImgH of an effective pixel region on the imaging surface S17, and a maximum half field angle HFOV.
Table 33
Fig. 22A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 11, which indicates a convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 22B shows an astigmatism curve of the optical imaging lens of embodiment 11, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 22C shows a distortion curve of the optical imaging lens of embodiment 11, which represents the corresponding distortion magnitude values at different image heights. Fig. 22D shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 11, which represents the deviation of light rays at different image heights on the imaging plane after passing through the lens. As can be seen from fig. 22A to 22D, the optical imaging lens provided in embodiment 11 can achieve good imaging quality.
In summary, examples 1 to 11 satisfy the relationships shown in table 34, respectively.
Conditional\embodiment 1 2 3 4 5 6 7 8 9 10 11
R8/R12 1.38 1.60 1.41 1.57 1.36 1.32 1.47 1.25 1.28 1.05 1.50
f6/f1 -1.53 -1.46 -1.55 -1.51 -2.26 -1.76 -1.49 -1.45 -1.49 -1.38 -1.89
R7/R1 -6.39 -7.42 -6.66 -8.20 -6.50 -7.70 -7.78 -6.52 -7.66 -6.18 -7.47
R1/R3 0.37 0.38 0.35 0.38 0.37 0.21 0.37 0.36 0.37 0.37 0.37
f123/f3 0.27 0.36 0.00 0.28 0.27 0.22 0.27 0.27 0.27 0.28 0.29
SAG42/SAG51 -1.24 -1.01 -1.18 -0.99 -1.05 -1.26 -1.09 -2.39 -2.56 -1.14 -1.04
f45/f67 0.32 0.38 0.33 0.36 0.51 0.34 0.36 0.32 0.26 0.39 0.33
T56/T67 3.08 2.81 3.02 2.65 2.94 3.00 2.77 2.71 2.56 3.27 3.37
T56/(T12+T23)/5 2.39 2.56 2.45 2.38 2.55 2.55 2.47 2.48 2.25 2.49 2.41
(CT2+CT5)/CT7 0.96 0.84 1.11 0.95 1.35 0.75 0.91 0.78 0.78 0.92 1.12
HFOV(°) 26.3 26.3 26.3 26.3 26.3 26.2 23.9 26.3 26.3 26.2 26.3
Watch 34
The application also provides an imaging device, wherein the electronic photosensitive element can be a photosensitive coupling element (CCD) or a complementary metal oxide semiconductor element (CMOS). The imaging device may be a stand alone imaging device such as a digital camera or an imaging module integrated on a mobile electronic device such as a cell phone. The imaging device is equipped with the optical imaging lens described above.
The above description is only illustrative of the preferred embodiments of the present application and of the principles of the technology employed. It will be appreciated by persons skilled in the art that the scope of the application referred to in the present application is not limited to the specific combinations of the technical features described above, but also covers other technical features formed by any combination of the technical features described above or their equivalents without departing from the inventive concept. Such as the above-mentioned features and the technical features disclosed in the present application (but not limited to) having similar functions are replaced with each other.

Claims (9)

1. The optical imaging lens sequentially comprises, 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, a sixth lens and a seventh lens,
It is characterized in that the method comprises the steps of,
the first lens has positive optical power;
the second lens has optical power, and the object side surface of the second lens is a convex surface;
the third lens has optical power;
the fourth lens has negative focal power, and the object side surface and the image side surface of the fourth lens are concave surfaces;
the fifth lens has optical power;
the sixth lens has negative focal power, and the image side surface of the sixth lens is a concave surface;
the seventh lens has optical power;
the number of lenses with focal power in the optical imaging lens is seven;
a separation distance T56 of the fifth lens and the sixth lens on the optical axis, a separation distance T12 of the first lens and the second lens on the optical axis, and a separation distance T23 of the second lens and the third lens on the optical axis satisfy 2 < T56/(t12+t23)/5 < 3;
the combined focal length f123 of the first lens, the second lens and the third lens and the effective focal length f3 of the third lens meet 0 < f123/f3 < 0.5; and
the combined focal length f45 of the fourth lens and the fifth lens and the combined focal length f67 of the sixth lens and the seventh lens satisfy 0 < f45/f67 < 0.6.
2. The optical imaging lens as claimed in claim 1, wherein an effective focal length f6 of the sixth lens and an effective focal length f1 of the first lens satisfy-2.5 < f6/f1 < -1.
3. The optical imaging lens of claim 1, wherein a radius of curvature R1 of an object side of the first lens and a radius of curvature R3 of an object side of the second lens satisfy 0 < R1/R3 < 0.5.
4. The optical imaging lens as claimed in claim 1, wherein a radius of curvature R7 of the object side of the fourth lens and a radius of curvature R1 of the object side of the first lens satisfy-8.5 < R7/R1 < -6.
5. The optical imaging lens as claimed in claim 4, wherein a radius of curvature R8 of an image side of the fourth lens and a radius of curvature R12 of an image side of the sixth lens satisfy 1 < R8/R12 < 2.
6. The optical imaging lens as claimed in claim 1, wherein an on-axis distance SAG42 from an intersection of an image side surface of the fourth lens element and the optical axis to an effective radius vertex of the image side surface of the fourth lens element and an on-axis distance SAG51 from an intersection of an object side surface of the fifth lens element and the optical axis to an effective radius vertex of the object side surface of the fifth lens element satisfy-3 < SAG42/SAG51 < -0.5.
7. The optical imaging lens according to claim 1, wherein a separation distance T56 of the fifth lens and the sixth lens on the optical axis and a separation distance T67 of the sixth lens and the seventh lens on the optical axis satisfy 2.5 < T56/T67 < 3.5.
8. The optical imaging lens according to claim 1, wherein a center thickness CT2 of the second lens on the optical axis, a center thickness CT5 of the fifth lens on the optical axis, and a center thickness CT7 of the seventh lens on the optical axis satisfy 0.5 < (CT 2+ct 5)/CT 7 < 1.5.
9. The optical imaging lens of any of claims 1 to 8, wherein a maximum half field angle HFOV of the optical imaging lens satisfies 22 ° < HFOV < 29 °.
CN201811122945.5A 2018-09-26 2018-09-26 Optical imaging lens Active CN108919468B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN202310787985.6A CN116880044A (en) 2018-09-26 2018-09-26 Optical imaging lens
CN201811122945.5A CN108919468B (en) 2018-09-26 2018-09-26 Optical imaging lens
PCT/CN2019/087374 WO2020062893A1 (en) 2018-09-26 2019-05-17 Optical imaging lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811122945.5A CN108919468B (en) 2018-09-26 2018-09-26 Optical imaging lens

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CN202310787985.6A Division CN116880044A (en) 2018-09-26 2018-09-26 Optical imaging lens

Publications (2)

Publication Number Publication Date
CN108919468A CN108919468A (en) 2018-11-30
CN108919468B true CN108919468B (en) 2023-11-21

Family

ID=64409151

Family Applications (2)

Application Number Title Priority Date Filing Date
CN202310787985.6A Pending CN116880044A (en) 2018-09-26 2018-09-26 Optical imaging lens
CN201811122945.5A Active CN108919468B (en) 2018-09-26 2018-09-26 Optical imaging lens

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CN202310787985.6A Pending CN116880044A (en) 2018-09-26 2018-09-26 Optical imaging lens

Country Status (2)

Country Link
CN (2) CN116880044A (en)
WO (1) WO2020062893A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116880044A (en) * 2018-09-26 2023-10-13 浙江舜宇光学有限公司 Optical imaging lens

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108535848A (en) * 2018-07-05 2018-09-14 浙江舜宇光学有限公司 Optical imagery eyeglass group

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4472079B2 (en) * 1999-12-24 2010-06-02 マミヤ・デジタル・イメージング株式会社 Medium telephoto lens
US10571656B2 (en) * 2016-11-28 2020-02-25 Samsung Electro-Mechanics Co., Ltd. Optical imaging system
CN107664824B (en) * 2017-10-19 2019-11-19 瑞声科技(新加坡)有限公司 Camera optical camera lens
CN113866946A (en) * 2017-11-17 2021-12-31 玉晶光电(厦门)有限公司 Optical imaging lens
CN109212719B (en) * 2018-05-02 2021-01-22 浙江舜宇光学有限公司 Optical imaging system
CN116880044A (en) * 2018-09-26 2023-10-13 浙江舜宇光学有限公司 Optical imaging lens
CN208833987U (en) * 2018-09-26 2019-05-07 浙江舜宇光学有限公司 Optical imaging lens

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108535848A (en) * 2018-07-05 2018-09-14 浙江舜宇光学有限公司 Optical imagery eyeglass group

Also Published As

Publication number Publication date
WO2020062893A1 (en) 2020-04-02
CN116880044A (en) 2023-10-13
CN108919468A (en) 2018-11-30

Similar Documents

Publication Publication Date Title
CN110068915B (en) Optical imaging system
CN108681040B (en) Optical imaging lens group
CN108919464B (en) Optical imaging lens group
CN114137694B (en) Optical imaging lens
CN108873272B (en) Optical imaging lens
CN107643586B (en) Image pickup lens group
CN110007444B (en) Optical imaging lens
CN108469669B (en) Image pickup lens
CN108287403B (en) Optical imaging lens
CN108508581B (en) Optical imaging system
CN109239891B (en) Optical imaging lens group
CN109407284B (en) Optical imaging system
CN109752826B (en) Optical imaging lens
CN108873252B (en) Optical imaging lens
CN108761730B (en) Image pickup lens
CN109358414B (en) Optical imaging system
CN117741916A (en) Optical imaging lens group
CN109683287B (en) Optical imaging lens
CN109116520B (en) Optical imaging lens
CN109358416B (en) Image pickup lens
CN109613683B (en) Optical imaging system
CN108490588B (en) Optical imaging lens
CN110361854B (en) Optical imaging system
CN108663780B (en) Optical imaging lens
CN108663782B (en) Image pickup lens

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant