CN116165768B - Optical imaging lens group - Google Patents

Optical imaging lens group

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Publication number
CN116165768B
CN116165768B CN202210116073.1A CN202210116073A CN116165768B CN 116165768 B CN116165768 B CN 116165768B CN 202210116073 A CN202210116073 A CN 202210116073A CN 116165768 B CN116165768 B CN 116165768B
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China
Prior art keywords
lens
optical axis
image
optical imaging
optical
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CN202210116073.1A
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Chinese (zh)
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CN116165768A (en
Inventor
张韵
何旦
吕赛锋
戴付建
赵烈烽
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Zhejiang Sunny Optics Co Ltd
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Zhejiang Sunny Optics Co Ltd
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Priority to CN202210116073.1A priority Critical patent/CN116165768B/en
Publication of CN116165768A publication Critical patent/CN116165768A/en
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
    • G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
    • G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/02—Telephoto objectives, i.e. systems of the type + - in which the distance from the front vertex to the image plane is less than the equivalent focal length
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)

Abstract

本申请提供了一种光学成像透镜组，沿光轴由物侧至像侧依序包括：具有正光焦度的第一透镜；具有正光焦度的第二透镜，其物侧面为凸面；具有光焦度的第三透镜；具有光焦度的第四透镜，其像侧面为凹面；具有光焦度的第五透镜，其为物侧面为凹面的弯月形透镜；具有光焦度的第六透镜，其物侧面为凹面；具有正光焦度的第七透镜，其像侧面为凸面；以及具有光焦度的第八透镜，其像侧面为凸面；其中，第一透镜的有效焦距f1、第二透镜的有效焦距f2、第七透镜的有效焦距f7以及第八透镜有效焦距f8满足：0.8<(f1+f2)/(f7+f8)<1.3。

The present application provides an optical imaging lens group, which includes, in order from the object side to the image side along the optical axis: a first lens with positive optical power; a second lens with positive optical power, whose object-side surface is convex; a third lens with optical power; a fourth lens with optical power, whose image-side surface is concave; a fifth lens with optical power, which is a meniscus lens with a concave object-side surface; a sixth lens with optical power, whose object-side surface is concave; a seventh lens with positive optical power, whose image-side surface is convex; and an eighth lens with optical power, whose image-side surface is convex; wherein the effective focal length f1 of the first lens, the effective focal length f2 of the second lens, the effective focal length f7 of the seventh lens, and the effective focal length f8 of the eighth lens satisfy the following: 0.8<(f1+f2)/(f7+f8)<1.3.

Description

Optical imaging lens group
Statement of divisional application
The application is a divisional application of a Chinese patent application with the application number of 202111404916.X, which is filed by 2021, 11 and 24 days and has the name of an optical imaging lens group.
Technical Field
The present application relates to the field of optical elements, and more particularly to an optical imaging lens group.
Background
In recent years, with the development of optical imaging lens group technology, there is a demand for optical imaging lens groups which are not only in characteristics of miniaturization, ultra-thin, and the like, but also in which the telephoto characteristics are beginning to increase. However, it is difficult for the conventional optical imaging lens group to satisfy the telephoto characteristic requirement of high imaging quality. Therefore, how to make the optical imaging lens group compatible with the telephoto characteristic and the high imaging quality has become one of the technical problems to be solved in the modern optical technical field.
Disclosure of Invention
The application provides an optical imaging lens group, which sequentially comprises a first lens with positive focal power, a second lens with positive focal power, a third lens with focal power, a fourth lens with focal power, a fifth lens with focal power, a sixth lens with focal power, a seventh lens with positive focal power, an eighth lens with focal power, and an eighth lens with focal power from the object side to the image side, wherein the first lens with positive focal power, the second lens with positive focal power, the object side with convex, the third lens with focal power, the fourth lens with focal power, the image side with focal power, the fifth lens with focal power with focal plane concave, the sixth lens with focal power with focal plane concave, the image side with focal plane convex, and the eighth lens with focal plane convex, and the effective focal distance f1 of the first lens, the effective focal distance f2 of the second lens, the effective focal distance f7 of the seventh lens and the effective focal distance f8 of the eighth lens meet the conditions of 0.8< (f1+f2)/(7+f8) <1.3.
In some embodiments, half of the diagonal length of the effective pixel area of the photosensitive element on the imaging surface of the optical imaging lens group, imgH, meets a maximum field angle FOV of the optical imaging lens group of 10mm < ImgH/tan (FOV/2) <11mm.
In some embodiments, the separation distance T45 of the fourth lens element and the fifth lens element on the optical axis and the separation distance TD of the object side surface of the first lens element to the image side surface of the eighth lens element on the optical axis satisfy 0.15< T45/TD <0.3.
In some embodiments, the distance Tr1r8 between the object side surface of the first lens element and the image side surface of the fourth lens element and the distance Tr9r16 between the object side surface of the fifth lens element and the image side surface of the eighth lens element on the optical axis satisfy 0.8< Tr1r8/Tr9r 16≤1.2.
In some embodiments, the radius of curvature R8 of the image side of the fourth lens and the radius of curvature R9 of the object side of the fifth lens satisfy-1.2 < R8/R9< -1.
In some embodiments, the effective half-caliber DT11 of the object side of the first lens, the effective half-caliber DT42 of the image side of the fourth lens, the effective half-caliber DT82 of the image side of the eighth lens and the effective half-caliber DT51 of the object side of the fifth lens satisfy 0.8< (DT 11-DT 42)/(DT 82-DT 51) <1.2.
In some embodiments, the center thickness CT5 of the fifth lens on the optical axis and the center thickness CT6 of the sixth lens on the optical axis satisfy 0.9< CT5/CT6<1.2.
In some embodiments, the separation distance BFL between the image side surface of the eighth lens element and the image plane of the optical imaging lens assembly on the optical axis and the separation distance TTL between the object side surface of the first lens element and the image plane on the optical axis satisfy 0.3< BFL/TTL <0.6.
In some embodiments, the radius of curvature R3 of the object-side surface of the second lens and the radius of curvature R14 of the image-side surface of the seventh lens satisfy-1.2 < R3/R14< -0.8.
In some embodiments, the center thickness CT7 of the seventh lens on the optical axis and the center thickness CT8 of the eighth lens on the optical axis satisfy 0.9< CT7/CT8<2.6.
In some embodiments, the separation distance T78 of the seventh lens and the eighth lens on the optical axis and the separation distance Tr13r16 of the object side surface of the seventh lens to the image side surface of the eighth lens on the optical axis satisfy 0.3<10 xT 78/Tr13r16<0.7.
In some embodiments, the center thickness CT1 of the first lens on the optical axis, the center thickness CT2 of the second lens on the optical axis, the center thickness CT7 of the seventh lens on the optical axis, and the center thickness CT8 of the eighth lens on the optical axis satisfy 0.8< (CT1+CT2)/(CT7+CT8) <1.2.
In some embodiments, the center thickness CT1 of the first lens on the optical axis, the center thickness CT4 of the fourth lens on the optical axis, the center thickness CT8 of the eighth lens on the optical axis, and the center thickness CT5 of the fifth lens on the optical axis satisfy 0.9< (CT 1-CT 4)/(CT 8-CT 5) <2.
In some embodiments, the center thickness CT1 of the first lens on the optical axis and the center thickness CT8 of the eighth lens on the optical axis satisfy 1< CT1/CT8<2.
In some embodiments, the distance SAG21 on the optical axis between the intersection of the object side surface of the second lens and the optical axis and the effective radius vertex of the object side surface of the second lens and the distance SAG72 on the optical axis between the intersection of the image side surface of the seventh lens and the optical axis and the effective radius vertex of the image side surface of the seventh lens satisfy 1.1< SAG21/SAG72< -0.6
In some embodiments, the distance SAG42 on the optical axis between the intersection of the image side surface of the fourth lens and the optical axis and the distance SAG51 on the optical axis between the intersection of the object side surface of the fifth lens and the optical axis and the effective radius vertex of the object side surface of the fifth lens satisfies 1< SAG42/SAG51< -0.4.
The application further provides an optical imaging lens group which sequentially comprises a first lens with positive focal power, a second lens with positive focal power, a third lens with focal power, a fourth lens with focal power, a fifth lens with focal power, a sixth lens with focal power, a seventh lens with positive focal power, an eighth lens with focal power, and a convex image side, from the object side to the image side, wherein the distance T78 between the seventh lens and the eighth lens on the optical axis and the distance Tr13r16 between the object side of the seventh lens and the image side of the eighth lens on the optical axis are met, and the distance T13 r is 0.3<10×T78/Tr13r16<0.7.
In some embodiments, half of the diagonal length of the effective pixel area of the photosensitive element on the imaging surface of the optical imaging lens group, imgH, meets a maximum field angle FOV of the optical imaging lens group of 10mm < ImgH/tan (FOV/2) <11mm.
In some embodiments, the separation distance T45 of the fourth lens element and the fifth lens element on the optical axis and the separation distance TD of the object side surface of the first lens element to the image side surface of the eighth lens element on the optical axis satisfy 0.15< T45/TD <0.3.
In some embodiments, the distance Tr1r8 between the object side surface of the first lens element and the image side surface of the fourth lens element and the distance Tr9r16 between the object side surface of the fifth lens element and the image side surface of the eighth lens element on the optical axis satisfy 0.8< Tr1r8/Tr9r 16≤1.2.
In some embodiments, the radius of curvature R8 of the image side of the fourth lens and the radius of curvature R9 of the object side of the fifth lens satisfy-1.2 < R8/R9< -1.
In some embodiments, the effective half-caliber DT11 of the object side of the first lens, the effective half-caliber DT42 of the image side of the fourth lens, the effective half-caliber DT82 of the image side of the eighth lens and the effective half-caliber DT51 of the object side of the fifth lens satisfy 0.8< (DT 11-DT 42)/(DT 82-DT 51) <1.2.
In some embodiments, the center thickness CT5 of the fifth lens on the optical axis and the center thickness CT6 of the sixth lens on the optical axis satisfy 0.9< CT5/CT6<1.2.
In some embodiments, the separation distance BFL between the image side surface of the eighth lens element and the image plane of the optical imaging lens assembly on the optical axis and the separation distance TTL between the object side surface of the first lens element and the image plane on the optical axis satisfy 0.3< BFL/TTL <0.6.
In some embodiments, the radius of curvature R3 of the object-side surface of the second lens and the radius of curvature R14 of the image-side surface of the seventh lens satisfy-1.2 < R3/R14< -0.8.
In some embodiments, the center thickness CT7 of the seventh lens on the optical axis and the center thickness CT8 of the eighth lens on the optical axis satisfy 0.9< CT7/CT8<2.6.
In some embodiments, the center thickness CT1 of the first lens on the optical axis, the center thickness CT2 of the second lens on the optical axis, the center thickness CT7 of the seventh lens on the optical axis, and the center thickness CT8 of the eighth lens on the optical axis satisfy 0.8< (CT1+CT2)/(CT7+CT8) <1.2.
In some embodiments, the center thickness CT1 of the first lens on the optical axis, the center thickness CT4 of the fourth lens on the optical axis, the center thickness CT8 of the eighth lens on the optical axis, and the center thickness CT5 of the fifth lens on the optical axis satisfy 0.9< (CT 1-CT 4)/(CT 8-CT 5) <2.
In some embodiments, the center thickness CT1 of the first lens on the optical axis and the center thickness CT8 of the eighth lens on the optical axis satisfy 1< CT1/CT8<2.
In some embodiments, the distance SAG21 on the optical axis between the intersection of the object side surface of the second lens and the optical axis and the effective radius vertex of the object side surface of the second lens and the distance SAG72 on the optical axis between the intersection of the image side surface of the seventh lens and the optical axis and the effective radius vertex of the image side surface of the seventh lens satisfy 1.1< SAG21/SAG72< -0.6
In some embodiments, the distance SAG42 on the optical axis between the intersection of the image side surface of the fourth lens and the optical axis and the distance SAG51 on the optical axis between the intersection of the object side surface of the fifth lens and the optical axis and the effective radius vertex of the object side surface of the fifth lens satisfies 1< SAG42/SAG51< -0.4.
The application adopts an eight-piece optical imaging lens group framework, and the optical imaging lens group has at least one beneficial effect of taking the characteristics of long distance and high resolution into consideration by reasonably distributing the focal power, the surface type, the center thickness of each lens, the axial spacing between each lens 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 group 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 group of embodiment 1;
Fig. 3 shows a schematic configuration diagram of an optical imaging lens group according to embodiment 2 of the present application;
Fig. 4A to 4D show an on-axis chromatic aberration curve, an astigmatic curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the optical imaging lens group of embodiment 2;
Fig. 5 shows a schematic configuration diagram of an optical imaging lens group according to embodiment 3 of the present application;
Fig. 6A to 6D show an on-axis chromatic aberration curve, an astigmatic curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the optical imaging lens group of embodiment 3;
Fig. 7 shows a schematic configuration diagram of an optical imaging lens group according to embodiment 4 of the present application;
Fig. 8A to 8D show an on-axis chromatic aberration curve, an astigmatic curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the optical imaging lens group of embodiment 4;
fig. 9 shows a schematic configuration of an optical imaging lens group according to embodiment 5 of the present application, and
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 group of embodiment 5.
Detailed Description
For a better understanding of the application, various aspects of the application will be described in more detail with reference to the accompanying drawings. It should be understood that the detailed description is merely illustrative of exemplary embodiments of the application and is not intended to limit the scope of the application in any way. Like reference numerals refer to like elements throughout the specification. The expression "and/or" includes any and all combinations of one or more of the associated listed items.
It should be noted that in the present specification, the expressions of first, second, third, etc. are only used to distinguish one feature from another feature, and do not represent any limitation on the feature. Accordingly, a first lens discussed below may also be referred to as a second lens or a third lens without departing from the teachings of the present application.
In the drawings, the thickness, size, and shape of the lenses have been slightly exaggerated for convenience of explanation. In particular, the spherical or aspherical shape shown in the drawings is shown by way of example. That is, the shape of the spherical or aspherical surface is not limited to the shape of the spherical or aspherical surface shown in the drawings. The figures are merely examples and are not drawn to scale.
Herein, the paraxial region refers to a region near the optical axis. If the lens surface is convex and the convex position is not defined, it means that the lens surface is convex at least in the paraxial region, and if the lens surface is concave and the concave position is not defined, it means that the lens surface is concave at least in the paraxial region. The surface of each lens closest to the object is referred to as the object side of the lens, and the surface of each lens closest to the imaging plane is referred to as the image side of the lens.
It will be further understood that the terms "comprises," "comprising," "includes," "including," "having," "containing," and/or "including," when used in this specification, specify the presence of stated features, elements, and/or components, but do not preclude the presence or addition of one or more other features, elements, components, and/or groups thereof. Furthermore, when a statement such as "at least one of the following" appears after a list of features that are listed, the entire listed feature is modified instead of modifying a separate element in the list. Furthermore, when describing embodiments of the application, use of "may" means "one or more embodiments of the application. Also, the term "exemplary" is intended to refer to an example or illustration.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
The features, principles, and other aspects of the present application are described in detail below.
The optical imaging lens group according to the exemplary embodiment of the present application may include, for example, eight lenses having optical power, i.e., a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, and an eighth lens. The eight lenses are arranged in order from the object side to the image side along the optical axis. In the first lens to the eighth lens, any adjacent two lenses may have an air space therebetween.
In an exemplary embodiment, the first lens may have positive power, the second lens may have positive power, the object-side surface thereof may be convex, the third lens may have positive power or negative power, the fourth lens may have positive power or negative power, the image-side surface thereof may be concave, the fifth lens may have positive power or negative power, the object-side surface thereof may be concave, the image-side surface thereof may be convex, i.e., the fifth lens may be a meniscus lens concave toward the object-side, the sixth lens may have positive power or negative power, the object-side surface thereof may be concave, the seventh lens may have positive power, the image-side surface thereof may be convex, and the eighth lens may have positive power or negative power, the image-side surface thereof may be convex. The positive and negative focal powers and the surface types of the lenses are reasonably distributed, so that the first lens group formed by the first lens to the fourth lens and the second lens group formed by the fifth lens to the eighth lens are of double-Gaussian conjugate symmetrical structures, namely, the surface types of the lenses of the first lens group and the second lens group are of conjugate symmetrical effects, thereby being beneficial to balancing aberration and reducing the influence of spherical aberration on imaging quality.
In an exemplary embodiment, the optical imaging lens group may satisfy 0.8< (f1+f2)/(f7+f8) <1.3, where f1 is an effective focal length of the first lens, f2 is an effective focal length of the second lens, f7 is an effective focal length of the seventh lens, and f8 is an effective focal length of the eighth lens. The optical imaging lens group meets the requirement that 0.8< (f1+f2)/(f7+f8) <1.3, and is favorable for reasonably distributing the optical power of the optical imaging lens group, so that the positive spherical aberration and the negative spherical aberration of the first lens group and the second lens group are mutually counteracted. More specifically, f1, f2, f7, and f8 may satisfy 0.8< (f1+f2)/(f7+f8) <1.2.
In an exemplary embodiment, the optical imaging lens group may satisfy 10mm < ImgH/tan (FOV/2) <11mm, where ImgH is half the diagonal length of the effective pixel area of the photosensitive element on the imaging surface of the optical imaging lens group, and FOV is the maximum field angle of the optical imaging lens group. The optical imaging lens group satisfies that 10mm < ImgH/tan (FOV/2) <11mm, and the effective focal length EFL of the optical imaging lens group can be controlled within a reasonable range so as to realize the long focal length (telephoto) characteristic of the optical imaging lens group.
In an exemplary embodiment, the optical imaging lens group may satisfy 0.15< T45/TD <0.3, where T45 is a separation distance of the fourth lens element and the fifth lens element on the optical axis, and TD is a separation distance of the object side surface of the first lens element to the image side surface of the eighth lens element on the optical axis. The optical imaging lens group meets the condition that the ratio of T45 to TD is less than 0.15 and less than 0.3, and is beneficial to balancing aberration through a double Gaussian conjugate symmetrical structure.
In an exemplary embodiment, the optical imaging lens group may satisfy 0.8< Tr1r8/Tr9r 16+.1.2, where Tr1r8 is a distance between the object side surface of the first lens element and the image side surface of the fourth lens element on the optical axis, and Tr9r16 is a distance between the object side surface of the fifth lens element and the image side surface of the eighth lens element on the optical axis. The optical imaging lens group meets the condition that 0.8< Tr1r8/Tr9r16 is less than or equal to 1.2, is favorable for better realizing the conjugate characteristic of the double Gaussian structure of the first lens group and the second lens group, and is favorable for balancing the aberration of the optical imaging lens group.
In an exemplary embodiment, the optical imaging lens group may satisfy-1.2 < R8/R9< -1 >, where R8 is a radius of curvature of the image side of the fourth lens and R9 is a radius of curvature of the object side of the fifth lens. The optical imaging lens group meets the condition that-1.2 < R8/R9< -1 >, the deflection angle of marginal rays of the optical imaging lens group can be reasonably controlled, and the sensitivity of the optical imaging lens group is effectively reduced.
In an exemplary embodiment, the optical imaging lens group may satisfy 0.8< (DT 11-DT 42)/(DT 82-DT 51) <1.2, wherein DT11 is an effective half-caliber of an object side surface of the first lens, DT42 is an effective half-caliber of an image side surface of the fourth lens, DT82 is an effective half-caliber of an image side surface of the eighth lens, and DT51 is an effective half-caliber of an object side surface of the fifth lens. The optical imaging lens group meets the condition that (DT 11-DT 42)/(DT 82-DT 51) is less than 1.2 and 0.8 </SUB >, and can effectively reduce the break-off of the optical imaging lens group in the processing process, so that the marginal light of the optical imaging lens group is in transition normal, and the deflection angle is normal and stable.
In an exemplary embodiment, the optical imaging lens group may satisfy 0.9< CT5/CT6<1.2, where CT5 is a center thickness of the fifth lens on the optical axis and CT6 is a center thickness of the sixth lens on the optical axis. The optical imaging lens group meets the condition that the ratio of CT5/CT6 is less than 0.9 and less than 1.2, and can control the distortion contribution quantity of each view field of the optical imaging lens group within a reasonable range, thereby being beneficial to improving the imaging quality of the optical imaging lens group. More specifically, CT5 and CT6 may satisfy 0.9< CT5/CT6<1.1.
In an exemplary embodiment, the optical imaging lens group may satisfy 0.3< BFL/TTL <0.6, where BFL is a separation distance on the optical axis of the image side of the eighth lens to the imaging plane of the optical imaging lens group, and TTL is a separation distance on the optical axis of the object side of the first lens to the imaging plane of the optical imaging lens group. The optical imaging lens group meets the requirement that BFL/TTL is less than 0.3 and less than 0.6, and is favorable for balancing the high-quality telephoto characteristic and the miniaturization characteristic of the optical imaging lens group. More specifically, BFL and TTL may satisfy 0.3< BFL/TTL <0.5.
In an exemplary embodiment, the optical imaging lens group may satisfy-1.2 < R3/R14< -0.8, where R3 is a radius of curvature of an object side of the second lens and R14 is a radius of curvature of an image side of the seventh lens. The optical imaging lens group meets the requirement that R3/R14 is less than-1.2 and less than-0.8, is beneficial to balancing the aberration of the optical imaging lens group and is beneficial to improving the imaging quality of the optical imaging lens group. More specifically, R3 and R14 may satisfy-1.1 < R3/R14< -0.8.
In an exemplary embodiment, the optical imaging lens group may satisfy 0.9< CT7/CT8<2.6, wherein CT7 is a center thickness of the seventh lens on the optical axis and CT8 is a center thickness of the eighth lens on the optical axis. The optical imaging lens group meets the condition that the ratio of CT7/CT8 is less than 0.9 and less than 2.6, and is favorable for reasonably regulating and controlling the distortion of the optical imaging lens group, so that the distortion of the optical imaging lens group is limited in a reasonable range. And the curvature of field of the external view field can be limited in a reasonable range.
In an exemplary embodiment, the optical imaging lens group may satisfy 0.3<10×t78/Tr13r16<0.7, where T78 is a separation distance of the seventh lens and the eighth lens on the optical axis, and Tr13r16 is a separation distance of the object side surface of the seventh lens to the image side surface of the eighth lens on the optical axis. The optical imaging lens group satisfies that 0.3<10 xT 78/Tr13r16<0.7, can effectively control the total length of the optical imaging lens group, and is beneficial to realizing the telephoto characteristic of the optical imaging lens group. Meanwhile, the high sensitivity of the spacing distance between the seventh lens and the eighth lens on the optical axis to the curvature of field of the edge field can be effectively reduced, and the yield in the mass production process can be improved. More specifically, T78 and Tr13r16 may satisfy 0.3<10×T78/Tr13r16<0.6.
In an exemplary embodiment, the optical imaging lens group may satisfy 0.8< (CT 1+ CT 2)/(CT 7+ CT 8) <1.2, where CT1 is a center thickness of the first lens on the optical axis, CT2 is a center thickness of the second lens on the optical axis, CT7 is a center thickness of the seventh lens on the optical axis, and CT8 is a center thickness of the eighth lens on the optical axis. The optical imaging lens group meets the condition that (CT1+CT2)/(CT7+CT8) <1.2, and the total length of the whole optical imaging lens group can be effectively controlled, thereby being beneficial to better realizing the telephoto characteristic of the optical imaging lens group. And meanwhile, the conjugate characteristic of the double Gaussian structures of the first lens group and the second lens group can be better realized, and the aberration of the optical imaging lens group can be balanced.
In an exemplary embodiment, the optical imaging lens group may satisfy 0.9< (CT 1-CT 4)/(CT 8-CT 5) <2, where CT1 is a center thickness of the first lens on the optical axis, CT4 is a center thickness of the fourth lens on the optical axis, CT8 is a center thickness of the eighth lens on the optical axis, and CT5 is a center thickness of the fifth lens on the optical axis. The optical imaging lens group meets the condition that (CT 1-CT 4)/(CT 8-CT 5) <2, and the conjugate characteristic of the double Gaussian structure of the first lens group and the second lens group can be better realized, so that the aberration of the optical imaging lens group can be balanced. More specifically, CT1, CT4, CT8, and CT5 may satisfy 0.9< (CT 1-CT 4)/(CT 8-CT 5) <1.8.
In an exemplary embodiment, the optical imaging lens group may satisfy 1< CT1/CT8<2, where CT1 is a center thickness of the first lens on the optical axis and CT8 is a center thickness of the eighth lens on the optical axis. The optical imaging lens group meets the requirement that 1< CT1/CT8<2, and is favorable for reasonably regulating and controlling the distortion amount of the optical imaging lens group, so that the distortion of the optical imaging lens group is limited in a reasonable range. And meanwhile, the conjugate characteristic of the double Gaussian structures of the first lens group and the second lens group can be better realized, and the aberration of the optical imaging lens group can be balanced. More specifically, CT1 and CT8 may satisfy 1< CT1/CT8<1.8.
In an exemplary embodiment, the optical imaging lens group may satisfy-1.1 < SAG21/SAG72< -0.6, wherein SAG21 is a distance on the optical axis between an intersection point of the object side surface of the second lens and the optical axis and an effective radius vertex of the object side surface of the second lens, and SAG72 is a distance on the optical axis between an intersection point of the image side surface of the seventh lens and the optical axis and an effective radius vertex of the image side surface of the seventh lens. The optical imaging lens group meets the condition that SAG21/SAG72< -0.6 is 1.1, the conjugation characteristic between the second lens and the seventh lens can be better realized, the whole double-Gaussian conjugation structure can be better realized, and the aberration of the optical imaging lens group can be balanced.
In an exemplary embodiment, the optical imaging lens group may satisfy-1 < SAG42/SAG51< -0.4, wherein SAG42 is a distance on the optical axis between an intersection point of the image side surface of the fourth lens and the optical axis and an effective radius vertex of the image side surface of the fourth lens, and SAG51 is a distance on the optical axis between an intersection point of the object side surface of the fifth lens and the optical axis and an effective radius vertex of the object side surface of the fifth lens. The optical imaging lens group can meet the requirements that-1 < SAG42/SAG51< -0.4, the conjugation characteristic between the fourth lens and the fifth lens can be better realized, the whole double-Gaussian conjugation structure can be better realized, and the aberration of the optical imaging lens group can be balanced. More specifically, SAG42 and SAG51 may satisfy-0.8 < SAG42/SAG51< -0.5.
In an exemplary embodiment, the optical imaging lens group may further include at least one diaphragm. The diaphragm may be provided at an appropriate position as required, for example, between the fourth lens and the fifth lens.
In an exemplary embodiment, the above optical imaging lens group 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 group according to the above embodiment of the present application may employ a plurality of lenses, for example, eight lenses as described above. By reasonably distributing the focal power, the surface shape, the center thickness of each lens, the axial spacing between each lens and the like of each lens, the volume of the optical imaging lens group can be effectively reduced, the sensitivity of the optical imaging lens group can be reduced, and the processability of the optical imaging lens group can be improved, so that the optical imaging lens group is more beneficial to production and processing and can be suitable for portable electronic products. The optical imaging lens group according to the embodiment of the application also has at least one advantageous effect of telephoto characteristics, 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, i.e., at least one of the object side surface of the first lens to the image side surface of the eighth lens is an aspherical mirror. The aspherical lens is characterized in that the curvature is continuously changed from the center of the lens to the periphery of the lens. Unlike a spherical lens having a constant curvature from the center of the lens to the periphery of the lens, an aspherical lens has a better radius of curvature characteristic, and has advantages of improving distortion aberration and improving astigmatic aberration. By adopting the aspherical lens, aberration occurring at the time of imaging can be eliminated as much as possible, thereby improving imaging quality. Optionally, at least one of an object side surface and an image side surface of each of the first lens to the eighth lens is an aspherical mirror surface. Optionally, the object side surface and the image side surface of each of the first to eighth lenses are aspherical mirror surfaces.
However, those skilled in the art will appreciate that the number of lenses making up an optical imaging lens group may be varied to achieve the various results and advantages described in this specification without departing from the scope of the application as claimed. For example, although eight lenses are described as an example in the embodiment, the optical imaging lens group is not limited to include eight lenses. The optical imaging lens group may also include other numbers of lenses, if desired.
Specific examples of the optical imaging lens group applicable to the above-described embodiments are further described below with reference to the accompanying drawings.
Example 1
An optical imaging lens group 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 group according to embodiment 1 of the present application.
As shown in fig. 1, the optical imaging lens assembly includes, in order 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 eighth lens E8, and a filter E9. The first lens E1, the second lens E2, the third lens E3 and the fourth lens E4 are configured to form a first lens group, and the fifth lens E5, the sixth lens E6, the seventh lens E7 and the eighth lens E8 are configured to form a second lens group, where the first lens group and the second lens group are of a double-gaussian conjugate symmetrical structure.
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 negative refractive power, wherein an object-side surface S5 thereof is convex, and an image-side surface S6 thereof is concave. The fourth lens element E4 has negative refractive power, wherein an object-side surface S7 thereof is convex and an image-side surface S8 thereof is concave. The fifth lens element E5 has 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 concave and an image-side surface S12 thereof is convex. 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 eighth lens element E8 has positive refractive power, wherein an object-side surface S15 thereof is convex, and an image-side surface S16 thereof is convex. The filter E9 has an object side surface S17 and an image side surface S18. The optical imaging lens group has an imaging surface S19, and light from an object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging surface S19.
Table 1 shows the basic parameter table of the optical imaging lens group of example 1, in which the units of radius of curvature, thickness, and focal length are all millimeters (mm).
TABLE 1
In embodiment 1, the total effective focal length f of the optical imaging lens group is 10.35mm, the distance TTL on the optical axis from the object side surface S1 of the first lens E1 to the imaging surface S19 is 13.66mm, the half of the diagonal length ImgH of the effective pixel region on the imaging surface S19 is 3.85mm, and the maximum field angle FOV of the optical imaging lens group is 39.8 °.
In embodiment 1, the object side surface and the image side surface of any one of the first lens E1 to the eighth lens E8 are aspherical, and the surface profile x of each aspherical lens can be defined by, but not limited to, the following aspherical formula:
Where x is the distance vector height of the aspherical surface at a position h in the optical axis direction from the apex of the aspherical surface, c is the paraxial curvature of the aspherical surface, c=1/R (i.e., paraxial curvature c is the reciprocal of the radius of curvature R in table 1 above), k is a conic coefficient, and Ai is the correction coefficient of the i-th order of the aspherical surface. The following table 2 gives the higher order coefficients A4, A6, A8, a10, a12, a14, a16, a18 and a20 that can be used for each of the aspherical mirrors S1 to S16 in example 1.
TABLE 2
Fig. 2A shows an on-axis chromatic aberration curve of the optical imaging lens group of embodiment 1, which indicates a converging focus deviation of light rays of different wavelengths after passing through the optical imaging lens group. Fig. 2B shows an astigmatism curve of the optical imaging lens group of embodiment 1, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 2C shows distortion curves of the optical imaging lens group of embodiment 1, which represent distortion magnitude values corresponding to different image heights. Fig. 2D shows a chromatic aberration of magnification curve of the optical imaging lens group of embodiment 1, which represents deviations of different image heights of light rays on an imaging plane via the optical imaging lens group. As can be seen from fig. 2A to 2D, the optical imaging lens set provided in embodiment 1 can achieve good imaging quality.
Example 2
An optical imaging lens group 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 diagram of an optical imaging lens group according to embodiment 2 of the present application.
As shown in fig. 3, the optical imaging lens assembly includes, in order 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 eighth lens E8, and a filter E9. The first lens E1, the second lens E2, the third lens E3 and the fourth lens E4 are configured to form a first lens group, and the fifth lens E5, the sixth lens E6, the seventh lens E7 and the eighth lens E8 are configured to form a second lens group, where the first lens group and the second lens group are of a double-gaussian conjugate symmetrical structure.
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 convex and an image-side surface S8 thereof is concave. The fifth lens element E5 has positive refractive power, wherein an object-side surface S9 thereof is 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 convex. 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 eighth lens element E8 has positive refractive power, wherein an object-side surface S15 thereof is convex, and an image-side surface S16 thereof is convex. The filter E9 has an object side surface S17 and an image side surface S18. The optical imaging lens group has an imaging surface S19, and light from an object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging surface S19.
In embodiment 2, the total effective focal length f of the optical imaging lens group is 10.29mm, the distance TTL on the optical axis from the object side surface S1 of the first lens E1 to the imaging surface S19 is 12.83mm, the half of the diagonal length ImgH of the effective pixel region on the imaging surface S19 is 3.85mm, and the maximum field angle FOV of the optical imaging lens group is 39.7 °.
Table 3 shows the basic parameter table of the optical imaging lens group of example 2, in which the units of radius of curvature, thickness, and focal length are all millimeters (mm). Table 4 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 2, wherein each of the aspherical surface types can be defined by the formula (1) given in example 1 above.
TABLE 3 Table 3
Face number A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 6.1623E-04 5.5765E-05 -6.2529E-05 -4.9025E-06 8.9765E-06 -2.3959E-06 2.9622E-07 -1.7930E-08 4.2775E-10
S2 6.7501E-03 -5.1181E-03 7.0898E-04 5.2915E-04 -2.7585E-04 5.9313E-05 -6.7807E-06 4.0428E-07 -9.9110E-09
S3 9.1987E-03 -7.2784E-03 2.3919E-03 -3.4461E-04 3.9273E-05 -1.3410E-05 2.7061E-06 -1.6487E-07 -2.3404E-09
S4 1.0027E-02 -8.0482E-03 2.4834E-03 -7.1049E-04 2.5258E-04 -7.0469E-05 1.1577E-05 -9.6557E-07 2.9957E-08
S5 7.7758E-03 -1.1753E-02 1.1332E-02 -8.8722E-03 4.4186E-03 -1.3064E-03 2.2319E-04 -2.0379E-05 7.7023E-07
S6 2.5398E-03 -6.4719E-03 1.1018E-02 -1.1636E-02 7.2346E-03 -2.6484E-03 5.5913E-04 -6.2961E-05 2.9296E-06
S7 -1.3693E-13 -1.0463E-15 2.6889E-15 -4.4363E-15 4.0903E-15 -2.1334E-15 6.3019E-16 -9.8637E-17 6.3707E-18
S8 -9.8582E-15 1.2507E-13 -5.7887E-13 1.3511E-12 -1.7975E-12 1.4251E-12 -6.6686E-13 1.7008E-13 -1.8239E-14
S9 2.5469E-02 -2.6905E-02 3.0936E-03 1.4879E-02 -1.2595E-02 5.3039E-03 -1.4682E-03 2.5512E-04 -1.9595E-05
S10 2.1217E-02 -4.8368E-03 -1.8993E-02 2.2059E-02 -9.5723E-03 1.7195E-03 -2.5544E-05 -2.9356E-05 2.6158E-06
S11 -1.2910E-02 5.1271E-02 -4.6923E-02 2.3181E-02 -7.0260E-03 1.3069E-03 -1.3881E-04 6.8118E-06 -6.0733E-08
S12 -6.8257E-02 6.8841E-02 -2.8890E-02 5.7548E-03 -5.4779E-04 1.7129E-05 1.0032E-06 -9.2221E-08 2.0174E-09
S13 -5.4996E-02 4.7145E-02 -1.8589E-02 6.7765E-03 -2.7285E-03 7.9015E-04 -1.3351E-04 1.1821E-05 -4.2451E-07
S14 -7.6048E-03 1.6739E-03 2.5850E-04 -1.4624E-04 3.2797E-05 -3.7770E-06 1.3717E-07 8.3530E-09 -5.9547E-10
S15 -2.6468E-03 -3.6539E-04 4.2075E-04 -1.0262E-04 1.4885E-05 -1.3977E-06 8.0037E-08 -2.4941E-09 3.2199E-11
S16 2.4064E-03 -1.6749E-03 4.3336E-04 -6.6022E-05 7.9912E-06 -7.0129E-07 3.7416E-08 -1.0536E-09 1.1965E-11
TABLE 4 Table 4
Fig. 4A shows an on-axis chromatic aberration curve of the optical imaging lens group of embodiment 2, which indicates a converging focus deviation of light rays of different wavelengths after passing through the optical imaging lens group. Fig. 4B shows an astigmatism curve of the optical imaging lens group 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 group of embodiment 2, which represents distortion magnitude values corresponding to different image heights. Fig. 4D shows a chromatic aberration of magnification curve of the optical imaging lens group of embodiment 2, which represents deviations of different image heights of light rays on an imaging plane via the optical imaging lens group. As can be seen from fig. 4A to 4D, the optical imaging lens group provided in embodiment 2 can achieve good imaging quality.
Example 3
An optical imaging lens group 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 group according to embodiment 3 of the present application.
As shown in fig. 5, the optical imaging lens group 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 eighth lens E8, and a filter E9. The first lens E1, the second lens E2, the third lens E3 and the fourth lens E4 are configured to form a first lens group, and the fifth lens E5, the sixth lens E6, the seventh lens E7 and the eighth lens E8 are configured to form a second lens group, where the first lens group and the second lens group are of a double-gaussian conjugate symmetrical structure.
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 convex 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 concave and an image-side surface S12 thereof is convex. 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 eighth lens element E8 has positive refractive power, wherein an object-side surface S15 thereof is convex, and an image-side surface S16 thereof is convex. The filter E9 has an object side surface S17 and an image side surface S18. The optical imaging lens group has an imaging surface S19, and light from an object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging surface S19.
In embodiment 3, the total effective focal length f of the optical imaging lens group is 10.12mm, the distance TTL on the optical axis from the object side surface S1 of the first lens E1 to the imaging surface S19 is 12.50mm, the half of the diagonal length ImgH of the effective pixel region on the imaging surface S19 is 3.85mm, and the maximum field angle FOV of the optical imaging lens group is 39.7 °.
Table 5 shows the basic parameter table of the optical imaging lens group of example 3, in which the units of radius of curvature, thickness, and focal length are all millimeters (mm). Table 6 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 3, wherein each of the aspherical surface types can be defined by the formula (1) given in example 1 above.
TABLE 5
TABLE 6
Fig. 6A shows an on-axis chromatic aberration curve of the optical imaging lens group of embodiment 3, which indicates a convergent focus deviation of light rays of different wavelengths after passing through the optical imaging lens group. Fig. 6B shows an astigmatism curve of the optical imaging lens group 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 group of embodiment 3, which represents distortion magnitude values corresponding to different image heights. Fig. 6D shows a chromatic aberration of magnification curve of the optical imaging lens group of embodiment 3, which represents the deviation of different image heights of light rays on the imaging plane via the optical imaging lens group. As can be seen from fig. 6A to 6D, the optical imaging lens group provided in embodiment 3 can achieve good imaging quality.
Example 4
An optical imaging lens group 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 group according to embodiment 4 of the present application.
As shown in fig. 7, the optical imaging lens group 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 eighth lens E8, and a filter E9. The first lens E1, the second lens E2, the third lens E3 and the fourth lens E4 are configured to form a first lens group, and the fifth lens E5, the sixth lens E6, the seventh lens E7 and the eighth lens E8 are configured to form a second lens group, where the first lens group and the second lens group are of a double-gaussian conjugate symmetrical structure.
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 convex and an image-side surface S8 thereof is concave. The fifth lens element E5 has positive refractive power, wherein an object-side surface S9 thereof is 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 convex. 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 eighth lens element E8 has positive refractive power, wherein an object-side surface S15 thereof is concave and an image-side surface S16 thereof is convex. The filter E9 has an object side surface S17 and an image side surface S18. The optical imaging lens group has an imaging surface S19, and light from an object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging surface S19.
In embodiment 4, the total effective focal length f of the optical imaging lens group is 10.05mm, the distance TTL on the optical axis from the object side surface S1 of the first lens E1 to the imaging surface S19 is 12.68mm, the half of the diagonal length ImgH of the effective pixel region on the imaging surface S19 is 3.85mm, and the maximum field angle FOV of the optical imaging lens group is 40.1 °.
Table 7 shows the basic parameter table of the optical imaging lens group of example 4, in which the units of radius of curvature, thickness, and focal length are all millimeters (mm). Table 8 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 4, wherein each of the aspherical surface types can be defined by the formula (1) given in example 1 above.
TABLE 7
Face number A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 7.2982E-04 5.5994E-05 -7.7251E-05 2.1462E-05 -7.2087E-07 -6.4572E-07 1.1534E-07 -7.6858E-09 1.8417E-10
S2 5.4251E-03 -4.8047E-03 2.2457E-03 -5.9797E-04 9.4646E-05 -9.0647E-06 5.1570E-07 -1.6047E-08 2.1048E-10
S3 7.0871E-03 -4.5306E-03 1.8357E-03 -3.0073E-04 4.6342E-06 3.7779E-06 -8.5375E-07 2.0102E-07 -1.8185E-08
S4 7.2713E-03 -4.8933E-03 -1.0875E-04 7.8516E-04 -2.6082E-04 3.0006E-05 1.1226E-06 -5.1685E-07 2.9957E-08
S5 5.2839E-03 -5.9471E-03 2.7386E-03 -2.4767E-03 1.8249E-03 -6.9525E-04 1.3837E-04 -1.3793E-05 5.4211E-07
S6 -2.1615E-04 -2.2978E-03 3.3965E-03 -4.4780E-03 3.6158E-03 -1.6023E-03 3.8736E-04 -4.8107E-05 2.4026E-06
S7 -1.3682E-13 -2.6673E-15 7.1977E-15 -1.1502E-14 1.1062E-14 -6.3139E-15 2.0787E-15 -3.6357E-16 2.6119E-17
S8 -4.8001E-17 1.9555E-14 -1.6385E-13 5.4333E-13 -9.4249E-13 9.3469E-13 -5.3408E-13 1.6373E-13 -2.0866E-14
S9 -1.1658E-03 -5.1850E-04 3.0765E-05 -8.2479E-07 1.2853E-08 -1.2272E-10 5.4608E-13 3.6012E-14 -3.6734E-15
S10 1.5236E-04 -8.9470E-04 1.6404E-03 -7.7741E-04 1.7065E-04 -4.1656E-05 9.7819E-06 -1.1607E-06 4.9596E-08
S11 -1.0149E-02 5.7233E-03 -1.5010E-03 2.0146E-04 -1.5512E-05 7.1602E-07 -1.9605E-08 2.9363E-10 -1.8525E-12
S12 -6.2187E-02 3.5880E-02 -1.0454E-02 1.7480E-03 -1.7675E-04 1.1158E-05 -4.3537E-07 9.6960E-09 -9.4829E-11
S13 -3.4429E-02 1.7071E-02 -2.0489E-04 -1.8509E-03 6.5245E-04 -1.1318E-04 1.1030E-05 -5.7556E-07 1.2540E-08
S14 -1.8184E-02 5.2204E-03 1.7628E-05 -3.5128E-04 1.2155E-04 -2.2722E-05 2.4983E-06 -1.5005E-07 3.7451E-09
S15 -2.1376E-02 6.1843E-03 -8.1512E-04 6.1195E-05 -2.7871E-06 7.8239E-08 -1.3221E-09 1.2330E-11 -4.8758E-14
S16 -2.3669E-03 -1.1029E-03 3.9363E-04 -5.0083E-05 3.3223E-06 -1.2665E-07 2.8011E-09 -3.3516E-11 1.6841E-13
TABLE 8
Fig. 8A shows an on-axis chromatic aberration curve of the optical imaging lens group of embodiment 4, which indicates a convergent focus deviation of light rays of different wavelengths after passing through the optical imaging lens group. Fig. 8B shows an astigmatism curve of the optical imaging lens group 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 group of embodiment 4, which represents distortion magnitude values corresponding to different image heights. Fig. 8D shows a chromatic aberration of magnification curve of the optical imaging lens group of embodiment 4, which represents the deviation of different image heights of light rays on the imaging plane via the optical imaging lens group. As can be seen from fig. 8A to 8D, the optical imaging lens group provided in embodiment 4 can achieve good imaging quality.
Example 5
An optical imaging lens group according to embodiment 5 of the present application is described below with reference to fig. 9 to 10D. Fig. 9 shows a schematic configuration diagram of an optical imaging lens group according to embodiment 5 of the present application.
As shown in fig. 9, the optical imaging lens group includes, in order 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 eighth lens E8, and a filter E9. The first lens E1, the second lens E2, the third lens E3 and the fourth lens E4 are configured to form a first lens group, and the fifth lens E5, the sixth lens E6, the seventh lens E7 and the eighth lens E8 are configured to form a second lens group, where the first lens group and the second lens group are of a double-gaussian conjugate symmetrical structure.
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 convex 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 concave and an image-side surface S12 thereof is convex. 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 eighth lens element E8 has positive refractive power, wherein an object-side surface S15 thereof is concave and an image-side surface S16 thereof is convex. The filter E9 has an object side surface S17 and an image side surface S18. The optical imaging lens group has an imaging surface S19, and light from an object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging surface S19.
In embodiment 5, the total effective focal length f of the optical imaging lens group is 10.12mm, the distance TTL on the optical axis from the object side surface S1 of the first lens E1 to the imaging surface S19 is 12.23mm, the half of the diagonal length ImgH of the effective pixel region on the imaging surface S19 is 3.85mm, and the maximum field angle FOV of the optical imaging lens group is 39.7 °.
Table 9 shows the basic parameter table of the optical imaging lens group of example 5, in which the units of radius of curvature, thickness, and focal length are all millimeters (mm). Table 10 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 5, wherein each of the aspherical surface types can be defined by the formula (1) given in example 1 above.
TABLE 9
Face number A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 2.1613E-04 1.4034E-04 -6.4410E-05 1.3368E-05 -2.2844E-06 3.5391E-07 -3.9275E-08 2.3652E-09 -5.7049E-11
S2 1.6239E-03 -6.2130E-04 1.6301E-04 -2.2293E-05 1.7084E-06 -7.7648E-08 2.0884E-09 -3.0773E-11 1.9172E-13
S3 4.1622E-03 -9.2922E-04 2.4171E-04 6.3618E-06 -1.4392E-05 5.7166E-06 -1.4240E-06 1.7532E-07 -8.5101E-09
S4 1.3693E-02 -1.0450E-02 1.2973E-03 9.7405E-04 -4.4357E-04 7.1564E-05 -3.2014E-06 -3.3126E-07 2.9957E-08
S5 1.2032E-02 -1.2296E-02 2.0293E-03 1.6414E-03 -8.9973E-04 1.9689E-04 -2.2428E-05 1.3128E-06 -3.1262E-08
S6 1.1884E-03 -4.0726E-03 1.8667E-03 1.0083E-04 -1.2149E-04 -2.6621E-05 1.7051E-05 -2.5084E-06 1.2133E-07
S7 -1.3683E-13 1.9118E-15 -1.0689E-14 1.7513E-14 -1.4094E-14 6.2824E-15 -1.5747E-15 2.0677E-16 -1.0976E-17
S8 -1.4852E-15 3.2615E-15 3.4159E-14 -1.5793E-13 2.7889E-13 -2.5450E-13 1.2677E-13 -3.2559E-14 3.3474E-15
S9 -7.3965E-03 2.8011E-02 -1.4422E-02 -5.7145E-03 7.1544E-03 -2.5976E-03 4.6333E-04 -4.1392E-05 1.4832E-06
S10 -2.3686E-02 6.2170E-02 -3.6951E-02 4.0926E-03 5.2221E-03 -2.8813E-03 6.6898E-04 -7.5652E-05 3.3947E-06
S11 -1.4487E-02 3.1892E-02 -2.0804E-02 7.0318E-03 -1.3897E-03 1.6708E-04 -1.2077E-05 4.7741E-07 -7.6333E-09
S12 -6.6188E-02 4.7894E-02 -1.6719E-02 2.3823E-03 3.8523E-06 -3.8967E-05 4.4912E-06 -2.1361E-07 3.8273E-09
S13 -5.0802E-02 3.3117E-02 -3.4880E-03 -3.5028E-03 1.6911E-03 -3.5948E-04 4.1621E-05 -2.5472E-06 6.4718E-08
S14 -3.8075E-03 1.9018E-04 1.1400E-03 -7.0257E-04 2.4052E-04 -4.5414E-05 4.6759E-06 -2.4709E-07 5.2473E-09
S15 1.1242E-02 -2.5480E-03 1.8502E-04 -6.6896E-06 1.3899E-07 -1.7409E-09 1.3011E-11 -5.3507E-14 9.3283E-17
S16 6.2706E-03 -3.1517E-04 -2.1085E-04 2.8875E-05 -1.4467E-06 2.6188E-08 2.6475E-10 -1.6554E-11 1.7846E-13
Table 10
Fig. 10A shows an on-axis chromatic aberration curve of the optical imaging lens group of embodiment 5, which indicates a convergent focus deviation of light rays of different wavelengths after passing through the optical imaging lens group. Fig. 10B shows an astigmatism curve of the optical imaging lens group 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 group of embodiment 5, which represents distortion magnitude values corresponding to different image heights. Fig. 10D shows a chromatic aberration of magnification curve of the optical imaging lens group of embodiment 5, which represents the deviation of different image heights of light rays on the imaging plane via the optical imaging lens group. As can be seen from fig. 10A to 10D, the optical imaging lens group provided in embodiment 5 can achieve good imaging quality.
In summary, examples 1 to 5 satisfy the relationships shown in table 11, respectively.
Conditional\embodiment 1 2 3 4 5
(f1+f2)/(f7+f8) 1.15 0.87 0.98 1.02 1.08
ImgH/tan(FOV/2) 10.65 10.65 10.66 10.56 10.66
T45/TD 0.21 0.18 0.19 0.19 0.20
Tr1r8/Tr9r16 0.89 0.93 1.01 0.92 1.12
R8/R9 -1.01 -1.10 -1.08 -1.06 -1.06
(DT11-DT42)/(DT82-DT51) 0.92 0.96 1.07 0.98 1.19
CT5/CT6 1.00 1.00 1.00 1.09 1.00
BFL/TTL 0.39 0.40 0.42 0.38 0.43
R3/R14 -1.00 -0.80 -0.79 -0.93 -0.82
CT7/CT8 0.96 2.35 2.54 1.71 1.98
10×T78/Tr13r16 0.37 0.39 0.44 0.52 0.53
(CT1+CT2)/(CT7+CT8) 0.83 0.82 0.91 0.84 1.10
(CT1-CT4)/(CT8-CT5) 0.99 1.49 1.74 1.12 1.70
CT1/CT8 1.03 1.59 1.78 1.26 1.76
SAG21/SAG72 -0.65 -0.70 -0.89 -0.70 -1.05
SAG42/SAG51 -0.54 -0.67 -0.63 -0.58 -0.68
TABLE 11
The present application also provides an image forming apparatus, wherein the electron photosensitive element may be a photosensitive coupling element (CCD) or a complementary metal oxide semiconductor element (CMOS). The imaging device may be a stand alone imaging device such as a digital camera or may be an imaging module integrated on an electronic device such as a smart phone. The imaging device is equipped with the above-described optical imaging lens group.
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 those skilled in the art that the scope of the application is not limited to the specific combination of the above technical features, but also encompasses other technical features which may be combined with any combination of the above technical features or their equivalents without departing from the spirit of the application. 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 (15)

1.光学成像透镜组，其特征在于，沿光轴由物侧至像侧依序包括：1. An optical imaging lens assembly, characterized in that it comprises, in order from the object side to the image side along the optical axis: 具有正光焦度的第一透镜，其物侧面为凸面，像侧面为凹面；The first lens has positive refractive power, its object-side surface is convex and its image-side surface is concave; 具有正光焦度的第二透镜，其物侧面为凸面，像侧面为凹面；a second lens having positive refractive power, with a convex object-side surface and a concave image-side surface; 具有光焦度的第三透镜，其物侧面为凸面，像侧面为凹面；a third lens having optical power, the object-side surface of which is convex and the image-side surface of which is concave; 具有负光焦度的第四透镜，其物侧面为凸面，像侧面为凹面；a fourth lens element having negative optical power, whose object-side surface is convex and whose image-side surface is concave; 具有光焦度的第五透镜，其为物侧面为凹面、像侧面为凸面的弯月形透镜；a fifth lens having optical power, which is a meniscus lens with a concave object-side surface and a convex image-side surface; 具有负光焦度的第六透镜，其物侧面为凹面，像侧面为凸面；a sixth lens element having negative optical power, whose object-side surface is concave and whose image-side surface is convex; 具有正光焦度的第七透镜，其物侧面为凹面，像侧面为凸面；以及a seventh lens element having positive optical power, whose object-side surface is concave and whose image-side surface is convex; and 具有正光焦度的第八透镜，其像侧面为凸面；an eighth lens element having positive refractive power and a convex image-side surface; 其中，所述第三透镜具有正光焦度；或者，所述第三透镜和所述第五透镜均具有负光焦度；Wherein, the third lens has positive optical power; or, the third lens and the fifth lens both have negative optical power; 所述光学成像透镜组具有光焦度的透镜的数量为八；The number of lenses with optical power in the optical imaging lens group is eight; 所述第一透镜的有效焦距f1、所述第二透镜的有效焦距f2、所述第七透镜的有效焦距f7以及所述第八透镜有效焦距f8满足：0.87≤(f1+f2)/(f7+f8)≤1.15；The effective focal length f1 of the first lens, the effective focal length f2 of the second lens, the effective focal length f7 of the seventh lens, and the effective focal length f8 of the eighth lens satisfy the following: 0.87≤(f1+f2)/(f7+f8)≤1.15; 所述第一透镜在所述光轴上的中心厚度CT1、所述第二透镜在所述光轴上的中心厚度CT2、所述第七透镜在所述光轴上的中心厚度CT7以及所述第八透镜在所述光轴上的中心厚度CT8满足：0.8＜(CT1+CT2)/(CT7+CT8)≤1.10。A center thickness CT1 of the first lens on the optical axis, a center thickness CT2 of the second lens on the optical axis, a center thickness CT7 of the seventh lens on the optical axis, and a center thickness CT8 of the eighth lens on the optical axis satisfy the following: 0.8＜(CT1+CT2)/(CT7+CT8)≤1.10. 2.根据权利要求1所述的光学成像透镜组，其特征在于，所述光学成像透镜组的成像面上感光元件的有效像素区域对角线长的一半ImgH与所述光学成像透镜组的最大视场角FOV满足：10.56 mm≤ImgH/tan(FOV/2)≤10.66 mm。2. The optical imaging lens assembly according to claim 1 , wherein half of the diagonal length of the effective pixel area of the photosensitive element on the imaging surface of the optical imaging lens assembly, ImgH, and the maximum field of view (FOV) of the optical imaging lens assembly satisfy the following relationship: 10.56 mm ≤ ImgH/tan(FOV/2) ≤ 10.66 mm. 3.根据权利要求1所述的光学成像透镜组，其特征在于，所述第四透镜和所述第五透镜在所述光轴上的间隔距离T45与所述第一透镜的物侧面至所述第八透镜的像侧面在所述光轴上的间隔距离TD满足：0.15＜T45/TD≤0.21。3. The optical imaging lens assembly according to claim 1 , wherein a distance T45 between the fourth lens and the fifth lens on the optical axis and a distance TD between the object-side surface of the first lens and the image-side surface of the eighth lens on the optical axis satisfy the following relationship: 0.15<T45/TD≤0.21. 4.根据权利要求1所述的光学成像透镜组，其特征在于，所述第一透镜的物侧面至所述第四透镜的像侧面在所述光轴上的间隔距离Tr1r8与所述第五透镜的物侧面至所述第八透镜的像侧面在所述光轴上的间隔距离Tr9r16满足：0.89≤Tr1r8/Tr9r16≤1.12。4. The optical imaging lens assembly according to claim 1, characterized in that a distance Tr1r8 between the object-side surface of the first lens and the image-side surface of the fourth lens on the optical axis and a distance Tr9r16 between the object-side surface of the fifth lens and the image-side surface of the eighth lens on the optical axis satisfy the following conditions: 0.89≤Tr1r8/Tr9r16≤1.12. 5.根据权利要求1所述的光学成像透镜组，其特征在于，所述第四透镜的像侧面的曲率半径R8与所述第五透镜的物侧面的曲率半径R9满足：-1.10≤R8/R9＜-1。5 . The optical imaging lens assembly according to claim 1 , wherein a curvature radius R8 of the image-side surface of the fourth lens element and a curvature radius R9 of the object-side surface of the fifth lens element satisfy: −1.10 ≤ R8 / R9 < −1. 6.根据权利要求1所述的光学成像透镜组，其特征在于，所述第一透镜的物侧面的有效半口径DT11、所述第四透镜的像侧面的有效半口径DT42、所述第八透镜的像侧面的有效半口径DT82以及所述第五透镜的物侧面的有效半口径DT51满足：0.92≤(DT11-DT42)/(DT82-DT51)＜1.2。6. The optical imaging lens assembly according to claim 1, characterized in that the effective semi-aperture DT11 of the object-side surface of the first lens, the effective semi-aperture DT42 of the image-side surface of the fourth lens, the effective semi-aperture DT82 of the image-side surface of the eighth lens, and the effective semi-aperture DT51 of the object-side surface of the fifth lens satisfy the following: 0.92≤(DT11-DT42)/(DT82-DT51)＜1.2. 7.根据权利要求1所述的光学成像透镜组，其特征在于，所述第五透镜在所述光轴上的中心厚度CT5与所述第六透镜在所述光轴上的中心厚度CT6满足：1.00≤CT5/CT6＜1.1。7 . The optical imaging lens assembly according to claim 1 , wherein a center thickness CT5 of the fifth lens element on the optical axis and a center thickness CT6 of the sixth lens element on the optical axis satisfy the relationship: 1.00≤CT5/CT6<1.1. 8.根据权利要求1所述的光学成像透镜组，其特征在于，所述第八透镜的像侧面至所述光学成像透镜组的成像面在所述光轴上的间隔距离BFL与所述第一透镜的物侧面至所述成像面在所述光轴上的间隔距离TTL满足：0.38≤BFL/TTL≤0.43。8. The optical imaging lens assembly according to claim 1 , wherein a distance BFL from the image-side surface of the eighth lens to the imaging plane of the optical imaging lens assembly on the optical axis and a distance TTL from the object-side surface of the first lens to the imaging plane on the optical axis satisfy the following relationship: 0.38≤BFL/TTL≤0.43. 9.根据权利要求1所述的光学成像透镜组，其特征在于，所述第二透镜的物侧面的曲率半径R3与所述第七透镜的像侧面的曲率半径R14满足：-1.00≤R3/R14≤-0.8，或者，R3/R14=-0.79。9. The optical imaging lens assembly according to claim 1, wherein a curvature radius R3 of the object-side surface of the second lens element and a curvature radius R14 of the image-side surface of the seventh lens element satisfy: -1.00 ≤ R3/R14 ≤ -0.8, or R3/R14 = -0.79. 10.根据权利要求1所述的光学成像透镜组，其特征在于，所述第七透镜在所述光轴上的中心厚度CT7与所述第八透镜在所述光轴上的中心厚度CT8满足：0.96≤CT7/CT8≤2.54。10 . The optical imaging lens assembly according to claim 1 , wherein a center thickness CT7 of the seventh lens element on the optical axis and a center thickness CT8 of the eighth lens element on the optical axis satisfy: 0.96≤CT7/CT8≤2.54. 11.根据权利要求1所述的光学成像透镜组，其特征在于，所述第七透镜和所述第八透镜在所述光轴上的间隔距离T78与所述第七透镜的物侧面至所述第八透镜的像侧面在所述光轴上的间隔距离Tr13r16满足：0.37≤10×T78/Tr13r16≤0.53。11. The optical imaging lens assembly according to claim 1 , wherein a distance T78 between the seventh lens and the eighth lens on the optical axis and a distance Tr13r16 between the object-side surface of the seventh lens and the image-side surface of the eighth lens on the optical axis satisfy the following relationship: 0.37≤10×T78/Tr13r16≤0.53. 12.根据权利要求1所述的光学成像透镜组，其特征在于，所述第一透镜在所述光轴上的中心厚度CT1、所述第四透镜在所述光轴上的中心厚度CT4、所述第八透镜在所述光轴上的中心厚度CT8以及所述第五透镜在所述光轴上的中心厚度CT5满足：0.99≤(CT1-CT4)/(CT8-CT5)≤1.74。12. The optical imaging lens assembly according to claim 1, wherein a center thickness CT1 of the first lens on the optical axis, a center thickness CT4 of the fourth lens on the optical axis, a center thickness CT8 of the eighth lens on the optical axis, and a center thickness CT5 of the fifth lens on the optical axis satisfy the following relationship: 0.99≤(CT1-CT4)/(CT8-CT5)≤1.74. 13.根据权利要求1所述的光学成像透镜组，其特征在于，所述第一透镜在所述光轴上的中心厚度CT1与所述第八透镜在所述光轴上的中心厚度CT8满足：1＜CT1/CT8＜1.8。13 . The optical imaging lens assembly according to claim 1 , wherein a center thickness CT1 of the first lens on the optical axis and a center thickness CT8 of the eighth lens on the optical axis satisfy: 1<CT1/CT8<1.8. 14.根据权利要求1所述的光学成像透镜组，其特征在于，所述第二透镜的物侧面和所述光轴的交点至所述第二透镜的物侧面的有效半径顶点在所述光轴上的间隔距离SAG21与所述第七透镜的像侧面和所述光轴的交点至所述第七透镜的像侧面的有效半径顶点在所述光轴上的间隔距离SAG72满足：-1.05≤SAG21/SAG72≤-0.65。14. The optical imaging lens assembly according to claim 1, characterized in that a distance SAG21 between the intersection of the object-side surface of the second lens and the optical axis and the vertex of the effective radius of the object-side surface of the second lens on the optical axis and a distance SAG72 between the intersection of the image-side surface of the seventh lens and the optical axis and the vertex of the effective radius of the image-side surface of the seventh lens on the optical axis satisfy the following conditions: -1.05≤SAG21/SAG72≤-0.65. 15.根据权利要求1所述的光学成像透镜组，其特征在于，所述第四透镜的像侧面和所述光轴的交点至所述第四透镜的像侧面的有效半径顶点在所述光轴上的间隔距离SAG42与所述第五透镜的物侧面和所述光轴的交点至所述第五透镜的物侧面的有效半径顶点在所述光轴上的间隔距离SAG51满足：-0.68≤SAG42/SAG51＜-0.5。15. The optical imaging lens assembly according to claim 1, characterized in that a distance SAG42 between the intersection of the image-side surface of the fourth lens and the optical axis and the vertex of the effective radius of the image-side surface of the fourth lens on the optical axis and a distance SAG51 between the intersection of the object-side surface of the fifth lens and the optical axis and the vertex of the effective radius of the object-side surface of the fifth lens on the optical axis satisfy: -0.68≤SAG42/SAG51＜-0.5.
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI595262B (en) * 2016-07-08 2017-08-11 黃俊裕 Imaging Lens
CN209148942U (en) * 2018-10-22 2019-07-23 浙江舜宇光学有限公司 Optical imaging lens

Family Cites Families (6)

* 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
CN110007433B (en) * 2019-03-15 2024-03-26 广东奥普特科技股份有限公司 Fixed focal line scanning lens
CN110531589B (en) * 2019-08-16 2024-03-26 中山依瓦塔光学有限公司 Projection objective lens of photoetching machine
CN111025588B (en) * 2019-12-28 2021-08-20 诚瑞光学(常州)股份有限公司 Camera optics
CN111580244B (en) * 2020-05-22 2022-04-05 玉晶光电(厦门)有限公司 Optical imaging lens
CN111443465B (en) * 2020-05-26 2025-05-06 浙江舜宇光学有限公司 Optical camera system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI595262B (en) * 2016-07-08 2017-08-11 黃俊裕 Imaging Lens
CN209148942U (en) * 2018-10-22 2019-07-23 浙江舜宇光学有限公司 Optical imaging lens

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