CN113985579A - Optical imaging lens - Google Patents

Optical imaging lens Download PDF

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Publication number
CN113985579A
CN113985579A CN202111320581.3A CN202111320581A CN113985579A CN 113985579 A CN113985579 A CN 113985579A CN 202111320581 A CN202111320581 A CN 202111320581A CN 113985579 A CN113985579 A CN 113985579A
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lens
optical imaging
image
optical
satisfy
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CN202111320581.3A
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CN113985579B (en
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肖亮
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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    • 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
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B30/00—Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles

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

Abstract

The application discloses optical imaging lens includes following preface from object side to image side along optical axis: the optical lens assembly includes a first lens having positive power, a second lens having power, a diaphragm, a third lens having negative power, a fourth lens having power, a fifth lens having positive power, a sixth lens having negative power, a seventh lens having power, an eighth lens having power, and a ninth lens having power. Wherein the first lens is made of glass; the image side surface of the fifth lens is a convex surface; the object side surface of the seventh lens is a concave surface, and the image side surface of the seventh lens is a convex surface; an effective focal length f8 of the eighth lens, a curvature radius R15 of an object-side surface of the eighth lens, and a curvature radius R16 of an image-side surface of the eighth lens satisfy: f8/(R15+ R16) is not less than 1.7.

Description

Optical imaging lens
Technical Field
The present application relates to the field of optical elements, and more particularly, to an optical imaging lens.
Background
In recent years, with the continuous development of electronic devices such as smart phones, consumers have higher and higher expectations for the performance of optical imaging lenses mounted on such electronic products, and in order to meet the market demands, miniaturized optical imaging systems have been continuously developed and advanced.
In order to achieve good optical performance, the conventional miniaturized imaging system often has a large f-number Fno (total effective focal length of the lens/entrance pupil diameter of the lens), and generally, increasing the number of mobile phone lenses is the most direct means for increasing the resolution of the lens and enhancing the shooting image quality. At present, in order to better meet the application requirement of the main camera on the next generation of high-end smart phone, an optical imaging lens with a large image plane, a large aperture, higher resolution, higher effective luminous flux and higher signal-to-noise ratio needs to be provided.
Disclosure of Invention
An aspect of the present disclosure provides an optical imaging lens, sequentially from an object side to an image side along an optical axis, comprising: the first lens with positive focal power is made of glass; a second lens having an optical power; a diaphragm; a third lens having a negative optical power; a fourth lens having an optical power; the image side surface of the fifth lens is a convex surface; a sixth lens having a negative optical power; a seventh lens element with a focal power, wherein the object-side surface of the seventh lens element is concave and the image-side surface of the seventh lens element is convex; an eighth lens having optical power; and a ninth lens having optical power. An effective focal length f8 of the eighth lens, a radius of curvature R15 of an object-side surface of the eighth lens, and a radius of curvature R16 of an image-side surface of the eighth lens may satisfy: f8/(R15+ R16) is not less than 1.7.
In one embodiment, a distance TTL from an object side surface of the first lens element to an imaging surface of the optical imaging lens along the optical axis and a half ImgH of a diagonal length of an effective pixel area on the imaging surface may satisfy: TTL/ImgH is less than or equal to 1.5.
In one embodiment, the effective focal length f of the optical imaging lens and the entrance pupil diameter EPD of the optical imaging lens may satisfy: f/EPD is less than or equal to 1.8.
In one embodiment, a half Semi-FOV of a maximum field angle of the optical imaging lens may satisfy: the Semi-FOV is more than or equal to 40 degrees.
In one embodiment, ImgH, which is half the diagonal length of the effective pixel area on the imaging plane of the optical imaging lens, may satisfy: ImgH > 8.0 mm.
In one embodiment, the edge thickness ET8 of the eighth lens and the edge thickness ET1 of the first lens may satisfy: 1.5 < ET8/ET1 < 3.0.
In one embodiment, the effective focal length f6 of the sixth lens and the effective focal length f3 of the third lens may satisfy: f6/f3 is more than 0.5 and less than 2.0.
In one embodiment, the effective focal length f3 of the third lens and the radius of curvature R5 of the object side of the third lens may satisfy: -5.0 < f3/R5 < -2.0.
In one embodiment, the radius of curvature R3 of the object-side surface of the second lens and the radius of curvature R4 of the image-side surface of the second lens may satisfy: 1.0 < (R3+ R4)/(R3-R4) < 3.0.
In one embodiment, an on-axis distance SAG11 from an intersection point of an object-side surface of the first lens and the optical axis to an effective radius vertex of the object-side surface of the first lens, and an on-axis distance SAG12 from an intersection point of an image-side surface of the first lens and the optical axis to an effective radius vertex of the image-side surface of the first lens may satisfy: 1.0 < (SAG11+ SAG12)/(SAG11-SAG12) < 2.0.
In one embodiment, an on-axis distance SAG71 from an intersection point of an object-side surface of the seventh lens and the optical axis to an effective radius vertex of the object-side surface of the seventh lens and an on-axis distance SAG72 from an intersection point of an image-side surface of the seventh lens and the optical axis to an effective radius vertex of the image-side surface of the seventh lens may satisfy: -5.5 < (SAG71+ SAG72)/(SAG71-SAG72) < -3.0.
In one embodiment, an on-axis distance SAG52 from an intersection point of an image-side surface of the fifth lens and the optical axis to an effective radius vertex of the image-side surface of the fifth lens to an on-axis distance SAG62 from an intersection point of an image-side surface of the sixth lens and the optical axis to an effective radius vertex of the image-side surface of the sixth lens may satisfy: 1.5 < SAG52/SAG62 < 4.0.
In one embodiment, a distance TTL between an object side surface of the first lens element and an image plane of the optical imaging lens along the optical axis and a distance SD between the stop and an image side surface of the ninth lens element along the optical axis may satisfy: TTL/SD is less than 1.5.
In one embodiment, a center thickness CT4 of the fourth lens on the optical axis and an edge thickness ET4 of the fourth lens may satisfy: 2.5 < CT4/ET4 < 3.5.
In one embodiment, the separation distance T23 between the second lens and the third lens on the optical axis and the central thickness CT2 of the second lens and the central thickness CT3 of the third lens on the optical axis may satisfy: T23/(CT2+ CT3) < 2.0.
In one embodiment, the abbe number V1 of the first lens and the abbe number V2 of the second lens may satisfy: V1-V2 < 27.
In one embodiment, the abbe number V4 of the fourth lens and the abbe number V5 of the fifth lens may satisfy: V4-V5 < 19.
Another aspect of the present disclosure provides an optical imaging lens, in order from an object side to an image side along an optical axis, comprising: the first lens with positive focal power is made of glass; a second lens having an optical power; a diaphragm; a third lens having a negative optical power; a fourth lens having an optical power; the image side surface of the fifth lens is a convex surface; a sixth lens having a negative optical power; a seventh lens element with a focal power, wherein the object-side surface of the seventh lens element is concave and the image-side surface of the seventh lens element is convex; an eighth lens having optical power; and a ninth lens having optical power. The distance TTL from the object side surface of the first lens to the imaging surface of the optical imaging lens along the optical axis and the half of the diagonal length ImgH of the effective pixel area on the imaging surface can satisfy the following conditions: TTL/ImgH is less than or equal to 1.5.
In one embodiment, the effective focal length f of the optical imaging lens and the entrance pupil diameter EPD of the optical imaging lens may satisfy: f/EPD is less than or equal to 1.8.
In one embodiment, an effective focal length f8 of the eighth lens, a radius of curvature R15 of an object-side surface of the eighth lens, and a radius of curvature R16 of an image-side surface of the eighth lens may satisfy: f8/(R15+ R16) is not less than 1.7.
In one embodiment, a half Semi-FOV of a maximum field angle of the optical imaging lens may satisfy: the Semi-FOV is more than or equal to 40 degrees.
In one embodiment, ImgH, which is half the diagonal length of the effective pixel area on the imaging plane of the optical imaging lens, may satisfy: ImgH > 8.0 mm.
In one embodiment, the edge thickness ET8 of the eighth lens and the edge thickness ET1 of the first lens may satisfy: 1.5 < ET8/ET1 < 3.0.
In one embodiment, the effective focal length f6 of the sixth lens and the effective focal length f3 of the third lens may satisfy: f6/f3 is more than 0.5 and less than 2.0.
In one embodiment, the effective focal length f3 of the third lens and the radius of curvature R5 of the object side of the third lens may satisfy: -5.0 < f3/R5 < -2.0.
In one embodiment, the radius of curvature R3 of the object-side surface of the second lens and the radius of curvature R4 of the image-side surface of the second lens may satisfy: 1.0 < (R3+ R4)/(R3-R4) < 3.0.
In one embodiment, an on-axis distance SAG11 from an intersection point of an object-side surface of the first lens and the optical axis to an effective radius vertex of the object-side surface of the first lens, and an on-axis distance SAG12 from an intersection point of an image-side surface of the first lens and the optical axis to an effective radius vertex of the image-side surface of the first lens may satisfy: 1.0 < (SAG11+ SAG12)/(SAG11-SAG12) < 2.0.
In one embodiment, an on-axis distance SAG71 from an intersection point of an object-side surface of the seventh lens and the optical axis to an effective radius vertex of the object-side surface of the seventh lens and an on-axis distance SAG72 from an intersection point of an image-side surface of the seventh lens and the optical axis to an effective radius vertex of the image-side surface of the seventh lens may satisfy: -5.5 < (SAG71+ SAG72)/(SAG71-SAG72) < -3.0.
In one embodiment, an on-axis distance SAG52 from an intersection point of an image-side surface of the fifth lens and the optical axis to an effective radius vertex of the image-side surface of the fifth lens to an on-axis distance SAG62 from an intersection point of an image-side surface of the sixth lens and the optical axis to an effective radius vertex of the image-side surface of the sixth lens may satisfy: 1.5 < SAG52/SAG62 < 4.0.
In one embodiment, a distance TTL between an object side surface of the first lens element and an image plane of the optical imaging lens along the optical axis and a distance SD between the stop and an image side surface of the ninth lens element along the optical axis may satisfy: TTL/SD is less than 1.5.
In one embodiment, a center thickness CT4 of the fourth lens on the optical axis and an edge thickness ET4 of the fourth lens may satisfy: 2.5 < CT4/ET4 < 3.5.
In one embodiment, the separation distance T23 between the second lens and the third lens on the optical axis and the central thickness CT2 of the second lens and the central thickness CT3 of the third lens on the optical axis may satisfy: T23/(CT2+ CT3) < 2.0.
In one embodiment, the abbe number V1 of the first lens and the abbe number V2 of the second lens may satisfy: V1-V2 < 27.
In one embodiment, the abbe number V4 of the fourth lens and the abbe number V5 of the fifth lens may satisfy: V4-V5 < 19.
The optical imaging lens adopts a nine-piece lens framework, and provides the optical imaging lens which is in a 9-piece glass aspheric surface type and has the beneficial effects of at least one of large image plane, large aperture, higher resolution, effective luminous flux, higher signal-to-noise ratio and the like by reasonably distributing the focal power of each lens and optimally selecting the surface type, the thickness, the Abbe number and the like of each lens.
Drawings
Other features, objects, and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments when taken in conjunction with the accompanying drawings. In the drawings:
fig. 1 shows a schematic structural view 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 astigmatic curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of the optical imaging lens of embodiment 1;
fig. 3 is a schematic structural view showing an optical imaging lens 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 chromatic aberration of magnification curve, respectively, of the optical imaging lens of embodiment 2;
fig. 5 is a schematic structural view showing an optical imaging lens 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 chromatic aberration of magnification curve, respectively, of the optical imaging lens of embodiment 3;
fig. 7 is a schematic structural view showing 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 chromatic aberration of magnification curve, respectively, of the optical imaging lens of embodiment 4;
fig. 9 is a schematic structural view showing 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 chromatic aberration of magnification curve, respectively, of the optical imaging lens of embodiment 5;
fig. 11 is a schematic structural view showing 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 chromatic aberration of magnification curve, respectively, of the optical imaging lens of embodiment 6;
fig. 13 is a schematic structural view showing an optical imaging lens according to embodiment 7 of the present application; and
fig. 14A to 14D show an axial chromatic aberration curve, an astigmatism curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of the optical imaging lens of embodiment 7.
Detailed Description
For a better understanding of the present application, various aspects of the present application will be described in more detail with reference to the accompanying drawings. It should be understood that the detailed description is merely illustrative of exemplary embodiments of the present application and does not limit the scope of the present application in any way. Like reference numerals refer to like elements throughout the specification. The expression "and/or" includes any and all combinations of one or more of the associated listed items.
It should be noted that in this specification, the expressions first, second, third, etc. are used only to distinguish one feature from another, and do not represent any limitation on the features. Thus, the first lens discussed below may also be referred to as the second lens or the third lens without departing from the teachings of the present application.
In the drawings, the thickness, size, and shape of the lens have been slightly exaggerated for convenience of explanation. In particular, the shapes of the spherical or aspherical surfaces shown in the drawings are shown by way of example. That is, the shape of the spherical surface or the aspherical surface is not limited to the shape of the spherical surface or the aspherical surface shown in the drawings. The figures are purely diagrammatic and not drawn to scale.
Herein, the paraxial region refers to a region near the optical axis. If the lens surface is convex and the convex position is not defined, it means that the lens surface is convex at least in the paraxial region; if the lens surface is concave and the concave position is not defined, it means that the lens surface is concave at least in the paraxial region. In this document, the surface of each lens closest to the subject is referred to as the object-side surface of the lens, and the surface of each lens closest to the image plane is referred to as the image-side surface of the lens.
It will be further understood that the terms "comprises," "comprising," "has," "having," "includes" and/or "including," when used in this specification, specify the presence of stated features, elements, and/or components, but do not preclude the presence or addition of one or more other features, elements, components, and/or groups thereof. Moreover, when a statement such as "at least one of" appears after a list of listed features, the entirety of the listed features is modified rather than modifying individual elements in the list. Furthermore, when describing embodiments of the present application, the use of "may" mean "one or more embodiments of the present application. Also, the term "exemplary" is intended to refer to an example or illustration.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
The features, principles, and other aspects of the present application are described in detail below.
The optical imaging lens according to an exemplary embodiment of the present application may include, for example, nine lenses having optical powers, i.e., a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, and a ninth lens. The nine lenses are arranged in order from the object side to the image side along the optical axis.
In an exemplary embodiment, the first lens may have positive optical power, and the first lens may be made of glass; the second lens may have a positive or negative optical power; the third lens may have a negative optical power; the fourth lens may have a positive power or a negative power; the fifth lens may have a positive optical power; the sixth lens may have a negative optical power; the seventh lens may have positive or negative optical power; the eighth lens may have a positive power or a negative power; the ninth lens may have a positive power or a negative power. The focal power and materials of each lens are reasonably matched, so that the temperature drift of the lens can be controlled within a reasonable range, the sensitivity of the optical imaging lens can be adjusted, and the production yield of the lens can be improved.
In an exemplary embodiment, an image side surface of the fifth lens may be convex. The seventh lens element can have a concave object-side surface and a convex image-side surface.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression f8/(R15+ R16) ≧ 1.7, where f8 is an effective focal length of the eighth lens, R15 is a radius of curvature of an object-side surface of the eighth lens, and R16 is a radius of curvature of an image-side surface of the eighth lens. By controlling the effective focal length of the eighth lens, the curvature radius of the object side surface of the eighth lens and the curvature radius of the image side surface of the eighth lens to satisfy f8/(R15+ R16) ≥ 1.7, the optical distortion can be reduced, and better imaging quality is ensured. More specifically, f8, R15 and R16 can satisfy f8/(R15+ R16) ≥ 1.77.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression TTL/ImgH ≦ 1.5, where TTL is a distance along the optical axis from the object side surface of the first lens to the imaging surface of the optical imaging lens, and ImgH is half a diagonal length of the effective pixel area on the imaging surface. The optical imaging lens has the characteristic of being ultrathin by controlling the ratio of the distance from the object side surface of the first lens to the imaging surface of the optical imaging lens along the optical axis to the half of the diagonal length of the effective pixel area on the imaging surface to be in the range. Illustratively, TTL can satisfy 10.9mm < TTL < 13.2mm, and ImgH can satisfy 8.4mm ≦ ImgH < 10.1 mm.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression f/EPD ≦ 1.8, where f is an effective focal length of the optical imaging lens, and EPD is an entrance pupil diameter of the optical imaging lens. The ratio of the effective focal length of the optical imaging lens to the entrance pupil diameter of the optical imaging lens is controlled within the range, so that the optical imaging lens can be ensured to have a larger aperture, the light inlet quantity of the optical imaging lens is improved, and the use requirement of a dark environment is met.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression Semi-FOV ≧ 40 °, where Semi-FOV is half of the maximum field angle of the optical imaging lens. By controlling the value of half of the maximum field angle of the optical imaging lens within this range, it is advantageous for the optical imaging lens to obtain a wider imaging range, with a field angle greater than 80 °.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression ImgH > 8.0mm, where ImgH is half the diagonal length of the effective pixel area on the imaging plane. By controlling the value of half of the diagonal length of the effective pixel area on the imaging surface to be in the range, the optical imaging lens can be ensured to have a larger imaging range. More specifically, the ImgH can satisfy ImgH ≧ 8.4 mm.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 1.5 < ET8/ET1 < 3.0, where ET8 is the edge thickness of the eighth lens and ET1 is the edge thickness of the first lens. By controlling the ratio of the edge thickness of the eighth lens to the edge thickness of the first lens within this range, the lenses can be easily injection molded, improving the processability of the system while ensuring better imaging quality. More specifically, ET8 and ET1 may satisfy 1.6 < ET8/ET1 < 2.6.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 0.5 < f6/f3 < 2.0, where f6 is an effective focal length of the sixth lens and f3 is an effective focal length of the third lens. By controlling the ratio of the effective focal length of the sixth lens to the effective focal length of the third lens to be within the range, the optical sensitivities of the third lens and the sixth lens can be effectively reduced, and the mass production can be realized more favorably. More specifically, f6 and f3 can satisfy 0.5 < f6/f3 ≦ 1.7.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression-5.0 < f3/R5 < -2.0, where f3 is an effective focal length of the third lens and R5 is a radius of curvature of an object side surface of the third lens. By controlling the ratio of the effective focal length of the third lens to the curvature radius of the object side surface of the third lens within the range, the incidence angle of the off-axis field rays on the imaging surface can be controlled, and the matching performance with the photosensitive element and the band-pass filter is improved. More specifically, f3 and R5 can satisfy-4.8 < f3/R5 < -2.2.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 1.0 < (R3+ R4)/(R3-R4) < 3.0, where R3 is a radius of curvature of an object-side surface of the second lens and R4 is a radius of curvature of an image-side surface of the second lens. By controlling the ratio of the sum of the curvature radius of the object-side surface of the second lens and the curvature radius of the image-side surface of the second lens to the difference between the curvature radius of the object-side surface of the second lens and the curvature radius of the image-side surface of the second lens to be within the range, the sensitivity of the system can be favorably reduced, and higher production yield can be favorably obtained. More specifically, R3 and R4 may satisfy 1.1 < (R3+ R4)/(R3-R4) < 2.7.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 1.0 < (SAG11+ SAG12)/(SAG11-SAG12) < 2.0, where SAG11 is an on-axis distance from an intersection of an object-side surface of the first lens and the optical axis to an effective radius vertex of the object-side surface of the first lens, and SAG12 is an on-axis distance from an intersection of an image-side surface of the first lens and the optical axis to an effective radius vertex of the image-side surface of the first lens. The ratio of the sum of the axial distance from the intersection point of the object side surface of the first lens and the optical axis to the effective radius peak of the object side surface of the first lens, the axial distance from the intersection point of the image side surface of the first lens and the optical axis to the effective radius peak of the image side surface of the first lens and the difference of the axial distance from the intersection point of the object side surface of the first lens and the optical axis to the effective radius peak of the object side surface of the first lens and the axial distance from the intersection point of the image side surface of the first lens and the optical axis to the effective radius peak of the image side surface of the first lens is controlled to be within the range, so that the light transmission aperture of the first lens can be in a reasonable range, and the optical imaging lens can obtain larger light transmission amount so as to obtain larger number of turns. More specifically, SAG11 and SAG12 may satisfy 1.2 < (SAG11+ SAG12)/(SAG11-SAG12) < 1.8.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression-5.5 < (SAG71+ SAG72)/(SAG71-SAG72) < -3.0, where SAG71 is an on-axis distance from an intersection of an object-side surface of the seventh lens and the optical axis to an effective radius vertex of the object-side surface of the seventh lens, and SAG72 is an on-axis distance from an intersection of an image-side surface of the seventh lens and the optical axis to an effective radius vertex of the image-side surface of the seventh lens. By controlling the ratio of the difference between the sum of the on-axis distance from the intersection point of the object-side surface of the seventh lens element and the optical axis to the effective radius vertex of the object-side surface of the seventh lens element, the on-axis distance from the intersection point of the object-side surface of the seventh lens element and the optical axis to the effective radius vertex of the image-side surface of the seventh lens element, and the on-axis distance from the intersection point of the image-side surface of the seventh lens element and the optical axis to the effective radius vertex of the image-side surface of the seventh lens element, within this range, the degree of freedom of variation of the surface of the seventh lens element can be made higher, and thereby the optical imaging lens system can obtain a stronger capability of correcting astigmatism and field curvature. More specifically, SAG71 and SAG72 can satisfy-5.3 < (SAG71+ SAG72)/(SAG71-SAG72) ≦ -3.3.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 1.5 < SAG52/SAG62 < 4.0, where SAG52 is an on-axis distance from an intersection of an image-side surface of the fifth lens and the optical axis to an effective radius vertex of the image-side surface of the fifth lens, and SAG62 is an on-axis distance from an intersection of an image-side surface of the sixth lens and the optical axis to an effective radius vertex of the image-side surface of the sixth lens. The ratio of the on-axis distance from the intersection point of the image side surface of the fifth lens and the optical axis to the effective radius peak of the image side surface of the fifth lens to the on-axis distance from the intersection point of the image side surface of the sixth lens and the optical axis to the effective radius peak of the image side surface of the sixth lens is controlled within the range, so that the chief ray angle of the optical imaging lens can be adjusted, the relative brightness of the optical imaging lens can be effectively improved, and the image plane definition is improved. More specifically, SAG52 and SAG62 may satisfy 1.8 < SAG52/SAG62 < 3.6.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression TTL/SD < 1.5, where TTL is a distance along an optical axis from an object side surface of the first lens to an imaging surface of the optical imaging lens, and SD is a distance along the optical axis from a stop to an image side surface of the ninth lens. By controlling the ratio of the distance along the optical axis from the object side surface of the first lens to the imaging surface of the optical imaging lens to the distance along the optical axis from the diaphragm to the image side surface of the ninth lens to be in the range, the relative position of the diaphragm in the whole optical system can be reasonably controlled, the system can obtain larger diaphragm number, and simultaneously the TTL of the whole system is relatively smaller, so that the optical imaging system with the ultrathin large diaphragm is obtained.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 2.5 < CT4/ET4 < 3.5, where CT4 is a center thickness of the fourth lens on an optical axis and ET4 is an edge thickness of the fourth lens. The forming difficulty of the lens can be controlled by controlling the ratio of the central thickness of the fourth lens on the optical axis to the edge thickness of the fourth lens in the range, the angle between the chief ray and the optical axis when the chief ray is incident on the image plane can be reduced, and the relative illumination of the image plane is improved. More specifically, CT4 and ET4 may satisfy 2.7 < CT4/ET4 < 3.5.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression T23/(CT2+ CT3) < 2.0, where T23 is a separation distance of the second lens and the third lens on the optical axis, CT2 is a center thickness of the second lens on the optical axis, and CT3 is a center thickness of the third lens on the optical axis. By controlling the ratio of the separation distance of the second lens and the third lens on the optical axis to the sum of the central thickness of the second lens on the optical axis and the central thickness of the third lens on the optical axis within this range, the capability of the optical imaging system to correct curvature of field and astigmatism can be improved. More specifically, T23, CT2 and CT3 may satisfy T23/(CT2+ CT3) < 1.7.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression V1-V2 < 27, where V1 is an abbe number of the first lens and V2 is an abbe number of the second lens. By controlling the difference between the abbe number of the first lens and the abbe number of the second lens within the range, the vertical axis chromatic aberration, the axial chromatic aberration and the chromatic spherical aberration of the system can be effectively corrected, so that the image quality of the system can be better ensured.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression V4-V5 < 19, where V4 is an abbe number of the fourth lens and V5 is an abbe number of the fifth lens. By controlling the difference between the abbe number of the fourth lens and the abbe number of the fifth lens within the range, the chromatic dispersion of the system can be reduced, and a good imaging effect is ensured.
In an exemplary embodiment, the effective focal length f of the optical imaging lens may be, for example, in the range of 8.2mm to 9.9mm, the effective focal length f1 of the first lens may be, for example, in the range of 7.5mm to 9.7mm, the effective focal length f2 of the second lens may be, for example, in the range of-17.4 mm to-11.9 mm, the effective focal length f3 of the third lens may be, for example, in the range of-147 mm to-61 mm, the effective focal length f4 of the fourth lens may be, for example, in the range of 14.3mm to 17.4mm, the effective focal length f5 of the fifth lens may be, for example, in the range of-1668 mm to 371mm, the effective focal length f6 of the sixth lens may be, for example, in the range of-117 mm to-84 mm, the effective focal length f7 of the seventh lens may be, for example, in the range of-2477 mm to 11151mm, the effective focal length f8 of the eighth lens may be, for example, in the range of 14.4mm to 17.7mm, the effective focal length f9 of the ninth lens may be, for example, in the range of-9.1 mm to-7.5 mm.
In an exemplary embodiment, the optical imaging lens may further include at least one diaphragm. The diaphragm may be disposed at an appropriate position as needed, for example, between the second lens and the third lens. Optionally, the optical imaging lens may further include a filter for correcting color deviation and/or a protective glass for protecting a photosensitive element on the imaging surface.
The optical imaging lens according to the above-described embodiment of the present application may employ a plurality of lenses, for example, nine lenses as described above. By reasonably distributing the focal power, the surface type, the material quality, the center thickness of each lens, the on-axis distance between each lens and the like, the lens has the characteristics of large image surface, large aperture, higher resolution, higher effective luminous flux, higher signal-to-noise ratio and the like.
In the embodiments of the present application, the mirror surfaces of the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens, the seventh lens, the eighth lens, and the ninth lens may have at least one aspherical mirror surface, that is, at least one aspherical mirror surface may be included from the object-side surface of the first lens to the image-side surface of the ninth lens. The aspheric lens is characterized in that: the curvature varies continuously from the center of the lens to the periphery of the lens. Unlike a spherical lens having a constant curvature from the center of the lens to the periphery of the lens, an aspherical lens has better curvature radius characteristics, and has advantages of improving distortion aberration and improving astigmatic aberration. After the aspheric lens is adopted, the aberration generated in imaging can be eliminated as much as possible, and the imaging quality is further improved. Optionally, at least one of an object-side surface and an image-side surface of each of the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens, the seventh lens, the eighth lens, and the ninth lens is an aspherical mirror surface. Optionally, each of the object-side surface and the image-side surface of the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens, the seventh lens, the eighth lens, and the ninth lens is an aspheric mirror surface.
However, it will be appreciated by those skilled in the art that the number of lenses constituting an optical imaging lens may be varied to achieve the various results and advantages described in the present specification without departing from the claimed subject matter. For example, although nine lenses are exemplified in the embodiment, the optical imaging lens is not limited to include nine lenses. The optical imaging lens may also include other numbers of lenses, if desired.
Specific examples of an optical imaging lens applicable to the above-described embodiments are further described below with reference to the 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 structural diagram of an optical imaging lens according to embodiment 1 of the present application.
As shown in fig. 1, the optical imaging lens, in order from an object side to an image side along an optical axis, comprises: a first lens E1, a second lens E2, a stop STO, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, an eighth lens E8, a ninth lens E9, and a filter E10.
The first lens element E1 has positive power, and has a convex object-side surface S1 and a concave image-side surface S2. The second lens element E2 has negative power, and has a convex object-side surface S3 and a concave image-side surface S4. The third lens element E3 has negative power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has positive power, and has a convex object-side surface S7 and a convex image-side surface S8. The fifth lens element E5 has positive power, and has a convex object-side surface S9 and a convex image-side surface S10. The sixth lens element E6 has negative power, and has a convex object-side surface S11 and a concave image-side surface S12. The seventh lens element E7 has negative power, and has a concave object-side surface S13 and a convex image-side surface S14. The eighth lens element E8 has positive power, and has a convex object-side surface S15 and a concave image-side surface S16. The ninth lens element E9 has negative power, and has a concave object-side surface S17 and a concave image-side surface S18. Filter E10 has an object side S19 and an image side S20. The optical imaging lens has an imaging surface S21, and light from the object passes through the respective surfaces S1 to S20 in order and is finally imaged on the imaging surface S21.
Table 1 shows basic parameters of the optical imaging lens of embodiment 1, in which the unit of the radius of curvature and the thickness/distance are both millimeters (mm).
Figure BDA0003345438900000081
TABLE 1
In embodiment 1, the object-side surface and the image-side surface of any one of the first lens E1 to the ninth lens E9 are aspheric surfaces, and the surface shape x of each aspheric lens can be defined by, but is not limited to, the following aspheric surface formula:
Figure BDA0003345438900000091
wherein x is the rise of the distance from the aspheric surface vertex to the aspheric surface vertex when the aspheric surface is at the position with the height of h along the optical axis direction; c is the paraxial curvature of the aspheric surface, c being 1/R (i.e., paraxial curvature c is the inverse of radius of curvature R in table 1 above); k is a conic coefficient; ai is the correction coefficient of the i-th order of the aspherical surface. The high-order term coefficients A usable for the aspherical mirror surfaces S1 to S18 in example 1 are shown in Table 2-1 and Table 2-2 below4、A6、A8、A10、A12、A14、A16、A18、A20、A22、A24、A26、A28And A30。
Flour mark A4 A6 A8 A10 A12 A14 A16
S1 1.8628E-02 3.3302E-03 -1.2419E-03 -8.9946E-04 -4.5135E-04 -1.5877E-04 -6.3896E-05
S2 7.9272E-02 -1.3061E-02 2.6239E-03 -7.4695E-04 8.7704E-05 -6.2066E-05 3.0390E-05
S3 9.4812E-02 -1.8795E-02 5.7426E-03 -7.7009E-04 4.4818E-05 -1.7011E-04 -1.2191E-05
S4 2.1934E-02 -6.6189E-03 -1.4252E-05 -9.4928E-04 -5.8923E-04 -4.2174E-04 -2.3389E-04
S5 -2.8356E-01 1.7620E-02 5.5152E-04 -1.0950E-03 -4.0964E-04 -1.1158E-04 -5.2006E-05
S6 -2.8612E-01 3.8936E-02 3.5087E-03 -1.9190E-03 -2.6800E-04 9.2412E-05 -7.3548E-06
S7 -1.9336E-01 -3.3427E-02 -3.9289E-03 -1.3233E-03 3.0628E-04 4.0681E-04 1.2715E-04
S8 -4.5940E-01 6.0826E-03 -1.2430E-02 5.2711E-03 -7.3289E-05 1.1812E-03 1.1959E-04
S9 -5.5591E-01 1.5505E-01 -4.9532E-03 1.1617E-03 -3.5316E-03 4.2524E-04 -2.5407E-04
S10 -6.4591E-01 -1.6258E-02 8.4178E-03 7.1573E-04 1.3079E-03 -5.3497E-04 -1.4394E-04
S11 -5.6984E-01 -7.4058E-02 2.5100E-02 1.8276E-04 -6.5749E-04 -2.8621E-03 3.9190E-04
S12 -4.9399E-01 -1.5570E-02 3.6431E-02 -8.2934E-03 -2.5186E-04 -2.5684E-03 1.9258E-03
S13 -2.0705E-01 -1.9260E-01 4.6143E-02 -3.3917E-02 8.7248E-03 6.6913E-03 8.0015E-03
S14 -7.5602E-01 2.0283E-01 -9.4177E-03 -1.3308E-02 3.1164E-04 1.3892E-02 2.5629E-03
S15 -4.7272E+00 3.7405E-01 8.8785E-02 1.9291E-02 -3.0517E-02 -1.5961E-03 5.2020E-03
S16 -4.4393E+00 3.3008E-01 5.1959E-02 -6.8432E-02 1.6141E-02 -6.8978E-03 5.2025E-03
S17 -2.0895E+00 1.3811E+00 -6.5035E-01 3.0113E-01 -1.2183E-01 3.5413E-02 -6.8988E-03
S18 -7.8010E+00 1.9382E+00 -5.1632E-01 2.3421E-01 -9.8660E-02 4.2518E-02 -3.1386E-02
TABLE 2-1
Figure BDA0003345438900000092
Figure BDA0003345438900000101
Tables 2 to 2
Fig. 2A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 1, which represents the convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 2B shows an astigmatism curve representing a meridional field curvature and a sagittal field curvature of the optical imaging lens of embodiment 1. Fig. 2C shows a distortion curve of the optical imaging lens of embodiment 1, which represents distortion magnitude values corresponding to different image heights. Fig. 2D shows a chromatic aberration of magnification curve of the optical imaging lens of embodiment 1, which represents a deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 2A to 2D, the optical imaging lens according to 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 parts similar to those of embodiment 1 will be omitted for the sake of brevity. Fig. 3 shows a schematic structural diagram of an optical imaging lens according to embodiment 2 of the present application.
As shown in fig. 3, the optical imaging lens, in order from an object side to an image side along an optical axis, comprises: a first lens E1, a second lens E2, a stop STO, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, an eighth lens E8, a ninth lens E9, and a filter E10.
The first lens element E1 has positive power, and has a convex object-side surface S1 and a concave image-side surface S2. The second lens element E2 has negative power, and has a convex object-side surface S3 and a concave image-side surface S4. The third lens element E3 has negative power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has positive power, and has a convex object-side surface S7 and a convex image-side surface S8. The fifth lens element E5 has positive power, and has a convex object-side surface S9 and a convex image-side surface S10. The sixth lens element E6 has negative power, and has a convex object-side surface S11 and a concave image-side surface S12. The seventh lens element E7 has negative power, and has a concave object-side surface S13 and a convex image-side surface S14. The eighth lens element E8 has positive power, and has a convex object-side surface S15 and a concave image-side surface S16. The ninth lens element E9 has negative power, and has a concave object-side surface S17 and a concave image-side surface S18. Filter E10 has an object side S19 and an image side S20. The optical imaging lens has an imaging surface S21, and light from the object passes through the respective surfaces S1 to S20 in order and is finally imaged on the imaging surface S21.
Table 3 shows basic parameters of the optical imaging lens of embodiment 2, in which the unit of the radius of curvature and the thickness/distance are both millimeters (mm). Tables 4-1 and 4-2 show the high-order term coefficients A that can be used for the aspherical mirror surfaces S1 through S18 in example 24、A6、A8、A10、A12、A14、A16、A18、A20、A22、A24、A26、A28And A30Wherein each aspherical surface shape can be defined by the formula (1) given in the above-described embodiment 1.
Figure BDA0003345438900000102
Figure BDA0003345438900000111
TABLE 3
Flour mark A4 A6 A8 A10 A12 A14 A16
S1 2.2039E-02 3.3437E-03 -1.2831E-03 -7.9328E-04 -4.2552E-04 -1.6316E-04 -1.0481E-04
S2 8.7083E-02 -1.4430E-02 2.9450E-03 -7.3642E-04 7.9196E-05 -5.3733E-05 1.2749E-06
S3 1.0408E-01 -2.0644E-02 6.4270E-03 -1.0887E-03 -4.9488E-05 -2.2122E-04 -6.3916E-05
S4 2.4218E-02 -7.3220E-03 1.1232E-04 -1.1770E-03 -6.7696E-04 -4.5376E-04 -2.3934E-04
S5 -3.1247E-01 1.9320E-02 7.0808E-04 -1.1556E-03 -4.2412E-04 -1.4647E-04 -6.3889E-05
S6 -3.1459E-01 4.2848E-02 3.8645E-03 -1.9294E-03 -2.2398E-04 6.7431E-05 6.7702E-07
S7 -2.1294E-01 -3.6727E-02 -4.4028E-03 -1.3668E-03 3.4740E-04 4.0046E-04 1.3711E-04
S8 -5.0569E-01 6.9945E-03 -1.3408E-02 5.4055E-03 -6.8855E-05 1.2792E-03 1.4471E-04
S9 -6.1172E-01 1.7060E-01 -5.4352E-03 9.9575E-04 -3.5686E-03 4.8099E-04 -3.2907E-04
S10 -7.0943E-01 -1.7789E-02 8.8862E-03 8.0309E-04 1.4317E-03 -5.8737E-04 -1.9840E-04
S11 -6.2828E-01 -8.0708E-02 2.7757E-02 2.0734E-04 -8.0465E-04 -3.3151E-03 3.9732E-04
S12 -5.4595E-01 -1.7670E-02 4.0024E-02 -9.1159E-03 -3.2538E-05 -2.8832E-03 2.0616E-03
S13 -2.2743E-01 -2.1016E-01 5.0819E-02 -3.7518E-02 9.6911E-03 7.3008E-03 8.7131E-03
S14 -8.4230E-01 2.2132E-01 -9.1844E-03 -1.4877E-02 2.8358E-04 1.5429E-02 3.0443E-03
S15 -5.1924E+00 4.1512E-01 9.7473E-02 2.0184E-02 -3.3100E-02 -2.2888E-03 5.3885E-03
S16 -4.8871E+00 3.6248E-01 5.5799E-02 -7.4470E-02 1.9104E-02 -7.6781E-03 5.9556E-03
S17 -2.2808E+00 1.5206E+00 -7.1920E-01 3.3003E-01 -1.3318E-01 3.9395E-02 -8.1321E-03
S18 -8.5735E+00 2.1290E+00 -5.6622E-01 2.5562E-01 -1.1350E-01 4.7376E-02 -3.3442E-02
TABLE 4-1
Figure BDA0003345438900000112
Figure BDA0003345438900000121
TABLE 4-2
Fig. 4A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 2, which represents the convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 4B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging lens of embodiment 2. Fig. 4C shows a distortion curve of the optical imaging lens of embodiment 2, which represents distortion magnitude values corresponding to different image heights. Fig. 4D shows a chromatic aberration of magnification curve of the optical imaging lens of embodiment 2, which represents the deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 4A to 4D, the optical imaging lens according to 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 structural diagram of an optical imaging lens according to embodiment 3 of the present application.
As shown in fig. 5, the optical imaging lens, in order from an object side to an image side along an optical axis, comprises: a first lens E1, a second lens E2, a stop STO, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, an eighth lens E8, a ninth lens E9, and a filter E10.
The first lens element E1 has positive power, and has a convex object-side surface S1 and a concave image-side surface S2. The second lens element E2 has negative power, and has a convex object-side surface S3 and a concave image-side surface S4. The third lens element E3 has negative power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has positive power, and has a convex object-side surface S7 and a convex image-side surface S8. The fifth lens element E5 has positive power, and has a convex object-side surface S9 and a convex image-side surface S10. The sixth lens element E6 has negative power, and has a convex object-side surface S11 and a concave image-side surface S12. The seventh lens element E7 has positive power, and has a concave object-side surface S13 and a convex image-side surface S14. The eighth lens element E8 has positive power, and has a convex object-side surface S15 and a concave image-side surface S16. The ninth lens element E9 has negative power, and has a concave object-side surface S17 and a concave image-side surface S18. Filter E10 has an object side S19 and an image side S20. The optical imaging lens has an imaging surface S21, and light from the object passes through the respective surfaces S1 to S20 in order and is finally imaged on the imaging surface S21.
Table 5 shows basic parameters of the optical imaging lens of embodiment 3, in which the unit of the radius of curvature and the thickness/distance are both millimeters (mm). Tables 6-1 and 6-2 show the high-order term coefficients A that can be used for the aspherical mirror surfaces S1 to S18 in example 34、A6、A8、A10、A12、A14、A16、A18、A20、A22、A24、A26、A28And A30Wherein each aspherical surface shape can be defined by the formula (1) given in the above-described embodiment 1.
Figure BDA0003345438900000122
Figure BDA0003345438900000131
TABLE 5
Flour mark A4 A6 A8 A10 A12 A14 A16
S1 2.4460E-02 4.0462E-03 -1.4565E-03 -1.0192E-03 -4.9978E-04 -1.7538E-04 -6.9782E-05
S2 9.5171E-02 -1.5800E-02 3.1546E-03 -8.5085E-04 9.4189E-05 -6.5694E-05 3.1987E-05
S3 1.1188E-01 -2.2975E-02 7.0936E-03 -1.0636E-03 -9.1177E-06 -2.2577E-04 -3.2669E-05
S4 2.6752E-02 -7.7260E-03 7.5655E-05 -1.2315E-03 -7.0999E-04 -4.8506E-04 -2.5425E-04
S5 -3.4000E-01 2.1154E-02 7.1338E-04 -1.2597E-03 -4.2295E-04 -1.0795E-04 -4.0622E-05
S6 -3.4374E-01 4.6267E-02 4.1915E-03 -2.1307E-03 -2.5290E-04 1.3524E-04 1.4728E-05
S7 -2.3346E-01 -3.9263E-02 -4.4240E-03 -1.4067E-03 3.5123E-04 4.7880E-04 1.6661E-04
S8 -5.5174E-01 8.0404E-03 -1.5375E-02 5.8205E-03 -1.9133E-04 1.2974E-03 1.4562E-04
S9 -6.6805E-01 1.8507E-01 -6.9489E-03 1.8859E-03 -3.6748E-03 4.3877E-04 -3.2528E-04
S10 -7.7048E-01 -1.8935E-02 1.0361E-02 1.3127E-03 1.9472E-03 -6.1178E-04 -1.5385E-04
S11 -6.8330E-01 -8.7386E-02 3.0635E-02 4.3177E-04 -9.2702E-04 -3.6769E-03 2.6162E-04
S12 -6.0323E-01 -1.9620E-02 4.3893E-02 -1.0022E-02 -8.5010E-04 -3.3929E-03 2.1766E-03
S13 -2.5088E-01 -2.2715E-01 5.5859E-02 -4.0668E-02 9.7001E-03 7.2772E-03 9.3960E-03
S14 -9.1776E-01 2.4132E-01 -1.0639E-02 -1.5871E-02 1.7857E-04 1.6370E-02 3.5435E-03
S15 -5.6644E+00 4.4964E-01 1.0427E-01 2.1983E-02 -3.6490E-02 -2.0542E-03 5.6003E-03
S16 -5.3250E+00 4.0629E-01 6.5073E-02 -7.9921E-02 2.0643E-02 -7.6501E-03 5.9813E-03
S17 -2.5147E+00 1.6572E+00 -7.8117E-01 3.6095E-01 -1.4541E-01 4.2456E-02 -8.0971E-03
S18 -9.3727E+00 2.3197E+00 -6.1945E-01 2.7966E-01 -1.1965E-01 5.1915E-02 -3.7319E-02
TABLE 6-1
Figure BDA0003345438900000132
Figure BDA0003345438900000141
TABLE 6-2
Fig. 6A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 3, which represents the convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 6B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging lens of embodiment 3. Fig. 6C shows a distortion curve of the optical imaging lens of embodiment 3, which represents distortion magnitude values corresponding to different image heights. Fig. 6D shows a chromatic aberration of magnification curve of the optical imaging lens of embodiment 3, which represents a deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 6A to 6D, the optical imaging lens according to 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 structural diagram of an optical imaging lens according to embodiment 4 of the present application.
As shown in fig. 7, the optical imaging lens, in order from an object side to an image side along an optical axis, comprises: a first lens E1, a second lens E2, a stop STO, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, an eighth lens E8, a ninth lens E9, and a filter E10.
The first lens element E1 has positive power, and has a convex object-side surface S1 and a concave image-side surface S2. The second lens element E2 has negative power, and has a convex object-side surface S3 and a concave image-side surface S4. The third lens element E3 has negative power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has positive power, and has a convex object-side surface S7 and a convex image-side surface S8. The fifth lens element E5 has positive power, and has a convex object-side surface S9 and a convex image-side surface S10. The sixth lens element E6 has negative power, and has a convex object-side surface S11 and a concave image-side surface S12. The seventh lens element E7 has negative power, and has a concave object-side surface S13 and a convex image-side surface S14. The eighth lens element E8 has positive power, and has a convex object-side surface S15 and a concave image-side surface S16. The ninth lens element E9 has negative power, and has a concave object-side surface S17 and a concave image-side surface S18. Filter E10 has an object side S19 and an image side S20. The optical imaging lens has an imaging surface S21, and light from the object passes through the respective surfaces S1 to S20 in order and is finally imaged on the imaging surface S21.
Table 7 shows basic parameters of the optical imaging lens of embodiment 4, in which the unit of the radius of curvature and the thickness/distance are both millimeters (mm). Tables 8-1 and 8-2 show the high-order term coefficients A that can be used for the aspherical mirror surfaces S1 to S18 in example 44、A6、A8、A10、A12、A14、A16、A18、A20、A22、A24、A26、A28And A30Wherein each aspherical surface shape can be defined by the formula (1) given in the above-described embodiment 1.
Figure BDA0003345438900000142
Figure BDA0003345438900000151
TABLE 7
Flour mark A4 A6 A8 A10 A12 A14 A16
S1 1.8932E-02 3.2789E-03 -1.2182E-03 -8.5615E-04 -4.5683E-04 -1.9757E-04 -1.1630E-04
S2 7.9240E-02 -1.3084E-02 2.6879E-03 -6.8884E-04 6.5618E-05 -7.7073E-05 9.7070E-06
S3 9.4709E-02 -1.8818E-02 5.7183E-03 -8.1390E-04 -4.3193E-06 -1.7336E-04 1.4356E-06
S4 2.1882E-02 -6.5394E-03 4.1686E-05 -9.5543E-04 -6.0240E-04 -4.3184E-04 -2.4447E-04
S5 -2.8370E-01 1.7567E-02 6.0434E-04 -1.0982E-03 -4.2171E-04 -1.1650E-04 -5.2747E-05
S6 -2.8609E-01 3.8904E-02 3.5209E-03 -1.8084E-03 -2.4604E-04 1.0703E-04 1.5288E-05
S7 -1.9346E-01 -3.3376E-02 -3.9797E-03 -1.1896E-03 2.9107E-04 3.8259E-04 1.5267E-04
S8 -4.6039E-01 6.2582E-03 -1.2151E-02 5.1660E-03 -2.6555E-04 1.0887E-03 1.5777E-04
S9 -5.5585E-01 1.5513E-01 -4.8288E-03 8.9618E-04 -3.5504E-03 5.8964E-04 -2.4533E-04
S10 -6.4526E-01 -1.6405E-02 8.2740E-03 8.1592E-04 1.2983E-03 -4.3494E-04 -1.1660E-04
S11 -5.7027E-01 -7.3787E-02 2.5069E-02 2.1188E-04 -6.3040E-04 -2.8994E-03 3.8063E-04
S12 -4.9545E-01 -1.5699E-02 3.6445E-02 -8.3377E-03 -2.7795E-04 -2.6301E-03 1.9218E-03
S13 -2.0853E-01 -1.9225E-01 4.6104E-02 -3.3842E-02 8.7414E-03 6.5541E-03 7.9318E-03
S14 -7.5657E-01 2.0283E-01 -9.4663E-03 -1.3480E-02 2.8553E-04 1.3709E-02 2.5433E-03
S15 -4.7285E+00 3.7335E-01 8.8890E-02 1.8934E-02 -3.0641E-02 -1.5689E-03 5.2278E-03
S16 -4.4419E+00 3.3162E-01 5.2010E-02 -6.8239E-02 1.6272E-02 -6.7624E-03 5.1410E-03
S17 -2.0893E+00 1.3812E+00 -6.5037E-01 3.0105E-01 -1.2187E-01 3.5350E-02 -6.9239E-03
S18 -7.8074E+00 1.9378E+00 -5.1640E-01 2.3401E-01 -9.8787E-02 4.2541E-02 -3.1344E-02
TABLE 8-1
Figure BDA0003345438900000152
Figure BDA0003345438900000161
TABLE 8-2
Fig. 8A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 4, which represents the convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 8B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging lens of embodiment 4. Fig. 8C shows a distortion curve of the optical imaging lens of embodiment 4, which represents distortion magnitude values corresponding to different image heights. Fig. 8D shows a chromatic aberration of magnification curve of the optical imaging lens of embodiment 4, which represents the deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 8A to 8D, the optical imaging lens according to 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 structural diagram of an optical imaging lens according to embodiment 5 of the present application.
As shown in fig. 9, the optical imaging lens, in order from an object side to an image side along an optical axis, comprises: a first lens E1, a second lens E2, a stop STO, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, an eighth lens E8, a ninth lens E9, and a filter E10.
The first lens element E1 has positive power, and has a convex object-side surface S1 and a convex image-side surface S2. The second lens element E2 has negative power, and has a convex object-side surface S3 and a concave image-side surface S4. The third lens element E3 has negative power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has positive power, and has a concave object-side surface S7 and a convex image-side surface S8. The fifth lens element E5 has negative power, and has a concave object-side surface S9 and a convex image-side surface S10. The sixth lens element E6 has negative power, and has a convex object-side surface S11 and a concave image-side surface S12. The seventh lens element E7 has negative power, and has a concave object-side surface S13 and a convex image-side surface S14. The eighth lens element E8 has positive power, and has a convex object-side surface S15 and a concave image-side surface S16. The ninth lens element E9 has negative power, and has a concave object-side surface S17 and a concave image-side surface S18. Filter E10 has an object side S19 and an image side S20. The optical imaging lens has an imaging surface S21, and light from the object passes through the respective surfaces S1 to S20 in order and is finally imaged on the imaging surface S21.
Table 9 shows basic parameters of the optical imaging lens of embodiment 5, in which the unit of the radius of curvature and the thickness/distance are both millimeters (mm). Tables 10-1 and 10-2 show the high-order term coefficients A that can be used for the aspherical mirror surfaces S1 to S18 in example 54、A6、A8、A10、A12、A14、A16、A18、A20、A22、A24、A26、A28And A30Wherein each aspherical surface shape can be defined by the formula (1) given in the above-described embodiment 1.
Figure BDA0003345438900000162
Figure BDA0003345438900000171
TABLE 9
Flour mark A4 A6 A8 A10 A12 A14 A16
S1 -1.0936E-02 -1.7735E-04 -1.3183E-04 -2.2772E-04 -2.5135E-06 -2.6972E-05 2.1266E-05
S2 1.0704E-01 -1.5195E-02 3.2358E-03 -9.7618E-04 2.8319E-04 -9.9282E-05 4.1372E-05
S3 1.2751E-01 -2.0519E-02 5.0759E-03 -1.3208E-03 3.4408E-04 -1.5223E-04 4.5863E-05
S4 1.1346E-03 -7.5063E-03 6.0384E-04 -9.9311E-04 -3.5923E-04 -3.4389E-04 -1.6178E-04
S5 -3.2393E-01 2.3304E-02 2.1910E-03 -1.7635E-03 -4.4059E-04 3.3968E-06 -1.8557E-05
S6 -3.5047E-01 5.0243E-02 3.9653E-03 -2.9774E-03 4.4158E-04 7.2788E-04 1.5618E-04
S7 -2.9360E-01 -5.3372E-02 -6.3742E-03 -2.7399E-04 2.2290E-03 1.4834E-03 3.6847E-04
S8 -5.3759E-01 -5.5205E-04 -6.8231E-03 5.5583E-03 -2.0358E-04 1.2547E-03 -7.7548E-04
S9 -5.9629E-01 1.5266E-01 1.0949E-03 -7.8814E-04 -3.1765E-03 1.1672E-03 -7.8228E-04
S10 -6.7873E-01 -6.7721E-03 2.6400E-03 8.1187E-04 9.9843E-04 4.1080E-04 1.5698E-05
S11 -5.0780E-01 -6.7239E-02 1.4411E-02 1.8136E-03 2.0677E-03 -2.3896E-03 3.0526E-04
S12 -3.9275E-01 -3.4086E-02 2.8860E-02 -4.6313E-03 4.4034E-03 -2.8745E-03 1.3584E-03
S13 1.4948E-01 -2.1656E-01 5.9030E-02 -3.7858E-02 1.8517E-03 -3.4137E-03 2.9992E-03
S14 -7.2458E-01 1.4397E-01 1.4051E-02 -3.4363E-03 -1.2067E-02 2.0440E-03 2.1322E-03
S15 -4.2866E+00 1.6740E-01 4.3759E-02 5.3791E-02 -7.9364E-03 -3.3010E-03 -6.5383E-03
S16 -4.3801E+00 3.3172E-01 4.5072E-02 -7.2368E-02 8.9261E-03 -8.1575E-03 3.0085E-03
S17 -1.9334E+00 1.2031E+00 -5.5725E-01 2.1141E-01 -6.7405E-02 1.5854E-02 -4.8526E-03
S18 -7.5165E+00 1.6804E+00 -4.4006E-01 2.0946E-01 -8.8752E-02 3.8672E-02 -2.6205E-02
TABLE 10-1
Figure BDA0003345438900000172
Figure BDA0003345438900000181
TABLE 10-2
Fig. 10A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 5, which represents the convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 10B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging lens of embodiment 5. Fig. 10C shows a distortion curve of the optical imaging lens of embodiment 5, which represents distortion magnitude values corresponding to different image heights. Fig. 10D shows a chromatic aberration of magnification curve of the optical imaging lens of embodiment 5, which represents a deviation of different image heights on the imaging surface after light passes through the lens. As can be seen from fig. 10A to 10D, the optical imaging lens according to 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 view of an optical imaging lens according to embodiment 6 of the present application.
As shown in fig. 11, the optical imaging lens, in order from an object side to an image side along an optical axis, comprises: a first lens E1, a second lens E2, a stop STO, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, an eighth lens E8, a ninth lens E9, and a filter E10.
The first lens element E1 has positive power, and has a convex object-side surface S1 and a concave image-side surface S2. The second lens element E2 has negative power, and has a convex object-side surface S3 and a concave image-side surface S4. The third lens element E3 has negative power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has positive power, and has a convex object-side surface S7 and a convex image-side surface S8. The fifth lens element E5 has negative power, and has a concave object-side surface S9 and a convex image-side surface S10. The sixth lens element E6 has negative power, and has a convex object-side surface S11 and a concave image-side surface S12. The seventh lens element E7 has negative power, and has a concave object-side surface S13 and a convex image-side surface S14. The eighth lens element E8 has positive power, and has a convex object-side surface S15 and a concave image-side surface S16. The ninth lens element E9 has negative power, and has a concave object-side surface S17 and a concave image-side surface S18. Filter E10 has an object side S19 and an image side S20. The optical imaging lens has an imaging surface S21, and light from the object passes through the respective surfaces S1 to S20 in order and is finally imaged on the imaging surface S21.
Table 11 shows basic parameters of the optical imaging lens of embodiment 6, in which the unit of the radius of curvature and the thickness/distance are both millimeters (mm). Tables 12-1 and 12-2 show the high-order term coefficients A that can be used for the aspherical mirror surfaces S1 to S18 in example 64、A6、A8、A10、A12、A14、A16、A18、A20、A22、A24、A26、A28And A30Wherein each aspherical surface shape can be given by the above embodiment 1The formula (1) given.
Figure BDA0003345438900000191
TABLE 11
Flour mark A4 A6 A8 A10 A12 A14 A16
S1 -4.1393E-03 -3.3461E-04 -5.0115E-04 -2.9325E-04 -1.8997E-04 -1.5187E-04 -1.3013E-04
S2 1.0548E-01 -1.5691E-02 4.0767E-03 -1.3311E-03 3.3934E-04 -1.9051E-04 4.7372E-05
S3 1.2144E-01 -2.1833E-02 6.4686E-03 -1.9061E-03 5.0893E-04 -2.4626E-04 6.0066E-05
S4 1.1150E-02 -9.2031E-03 5.4206E-05 -1.3118E-03 -2.3977E-04 -2.3266E-04 -1.2710E-04
S5 -3.2690E-01 2.2567E-02 1.1871E-03 -1.7286E-03 -7.2100E-04 -3.2835E-04 -2.0608E-04
S6 -3.4774E-01 5.0969E-02 2.4725E-03 -2.7422E-03 7.7396E-05 5.4354E-04 2.4815E-04
S7 -2.9010E-01 -5.3679E-02 -6.6317E-03 5.5462E-04 2.2283E-03 1.5255E-03 4.8601E-04
S8 -5.4112E-01 1.3069E-04 -7.1301E-03 5.8271E-03 5.2291E-04 1.4279E-03 -5.4592E-04
S9 -5.9420E-01 1.5296E-01 7.1981E-04 -1.1214E-03 -2.7771E-03 6.9543E-04 -7.4150E-04
S10 -6.8177E-01 -7.7732E-03 3.6438E-03 8.1570E-04 1.1902E-03 1.8250E-04 -3.4066E-05
S11 -5.1055E-01 -6.3805E-02 1.5751E-02 1.0829E-03 1.5453E-03 -2.3427E-03 2.6214E-04
S12 -3.9840E-01 -3.6571E-02 2.8561E-02 -4.7584E-03 3.7943E-03 -2.5288E-03 1.4333E-03
S13 1.4020E-01 -2.1919E-01 6.2263E-02 -3.6919E-02 1.6698E-03 -3.4623E-03 3.5958E-03
S14 -7.2101E-01 1.4482E-01 1.4282E-02 -5.6588E-03 -1.3054E-02 1.3578E-03 2.4719E-03
S15 -4.2692E+00 1.8558E-01 3.6587E-02 4.9000E-02 -8.8211E-03 -2.0580E-03 -5.5909E-03
S16 -4.4444E+00 3.1809E-01 5.2981E-02 -6.7390E-02 1.2334E-02 -8.2959E-03 3.7588E-03
S17 -1.9655E+00 1.2186E+00 -5.5278E-01 2.1222E-01 -6.7967E-02 1.3653E-02 -4.5088E-03
S18 -7.5082E+00 1.6983E+00 -4.3743E-01 2.0173E-01 -8.6659E-02 3.2083E-02 -2.7706E-02
TABLE 12-1
Flour mark A18 A20 A22 A24 A26 A28 A30
S1 -1.0207E-04 -7.5756E-05 -5.3542E-05 -3.7153E-05 -2.1641E-05 -1.1706E-05 -5.6694E-06
S2 -4.5340E-05 1.8888E-05 -1.7927E-05 1.2214E-05 -6.2186E-06 3.8163E-06 -2.2679E-06
S3 -9.4443E-05 -2.0466E-05 -6.4864E-05 -1.6731E-05 -2.9164E-05 -4.3486E-06 -7.0722E-06
S4 -1.4637E-04 -8.4940E-05 -3.9712E-05 3.3663E-06 8.4933E-06 8.0176E-06 -9.7386E-08
S5 -8.7450E-05 9.1243E-06 6.2739E-05 7.0499E-05 5.0221E-05 2.3269E-05 6.2964E-06
S6 8.5523E-05 -1.8464E-05 -5.8464E-05 -5.9349E-05 -4.3339E-05 -2.5166E-05 -7.4696E-06
S7 -3.3806E-05 -2.1720E-04 -2.1675E-04 -1.3347E-04 -5.9733E-05 -2.0967E-05 -6.8645E-06
S8 -6.4427E-04 -6.7614E-04 -5.6100E-04 -3.0667E-04 -1.5635E-04 -4.3337E-05 -1.3959E-05
S9 5.7020E-05 2.0890E-05 -3.1110E-05 7.0806E-05 9.0177E-06 4.7576E-06 -1.4977E-05
S10 -1.0010E-04 5.2870E-05 -5.8985E-05 1.7239E-05 5.3291E-06 1.2766E-05 1.9481E-06
S11 -4.5104E-04 9.0617E-05 -1.7405E-04 -4.3891E-05 -3.9076E-05 4.7354E-06 6.6339E-09
S12 -5.2820E-04 1.6813E-04 -2.6221E-04 -9.9720E-06 -3.1242E-05 1.7775E-05 -1.6701E-07
S13 1.5631E-04 6.4169E-04 -2.5214E-04 -3.4271E-05 -1.2175E-04 -2.7533E-05 -2.9911E-05
S14 5.4020E-04 -1.2409E-04 -4.2865E-04 -6.6198E-05 2.8528E-05 6.2113E-05 -1.2089E-06
S15 3.8824E-04 2.2946E-04 8.2650E-04 4.5096E-05 2.2879E-05 -7.6720E-06 1.6721E-05
S16 -1.6850E-04 -3.6991E-04 -2.6915E-04 -7.6905E-05 2.5464E-04 -2.4397E-05 4.2271E-05
S17 4.8900E-03 -4.0772E-03 3.9422E-03 -1.4363E-03 5.0161E-04 2.3729E-05 -2.0650E-05
S18 1.1705E-02 -3.9784E-03 5.3686E-03 -7.2135E-04 1.6014E-03 9.5036E-05 5.2029E-04
TABLE 12-2
Fig. 12A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 6, which represents the convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 12B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging lens of embodiment 6. Fig. 12C shows a distortion curve of the optical imaging lens of embodiment 6, which represents distortion magnitude values corresponding to different image heights. Fig. 12D shows a chromatic aberration of magnification curve of the optical imaging lens of embodiment 6, which represents a deviation of different image heights on the imaging surface after light passes through the lens. As can be seen from fig. 12A to 12D, the optical imaging lens according to 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 is a schematic structural view showing an optical imaging lens according to embodiment 7 of the present application.
As shown in fig. 13, the optical imaging lens, in order from an object side to an image side along an optical axis, comprises: a first lens E1, a second lens E2, a stop STO, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, an eighth lens E8, a ninth lens E9, and a filter E10.
The first lens element E1 has positive power, and has a convex object-side surface S1 and a concave image-side surface S2. The second lens element E2 has negative power, and has a convex object-side surface S3 and a concave image-side surface S4. The third lens element E3 has negative power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has positive power, and has a convex object-side surface S7 and a convex image-side surface S8. The fifth lens element E5 has negative power, and has a concave object-side surface S9 and a convex image-side surface S10. The sixth lens element E6 has negative power, and has a concave object-side surface S11 and a convex image-side surface S12. The seventh lens element E7 has negative power, and has a concave object-side surface S13 and a convex image-side surface S14. The eighth lens element E8 has positive power, and has a convex object-side surface S15 and a concave image-side surface S16. The ninth lens element E9 has negative power, and has a concave object-side surface S17 and a concave image-side surface S18. Filter E10 has an object side S19 and an image side S20. The optical imaging lens has an imaging surface S21, and light from the object passes through the respective surfaces S1 to S20 in order and is finally imaged on the imaging surface S21.
Table 13 shows basic parameters of the optical imaging lens of embodiment 7, in which the unit of the radius of curvature and the thickness/distance are both millimeters (mm). Tables 14-1 and 14-2 show the high-order term coefficients A that can be used for the aspherical mirror surfaces S1 to S18 in example 74、A6、A8、A10、A12、A14、A16、A18、A20、A22、A24、A26、A28And A30Wherein each aspherical surface shape can be defined by the formula (1) given in the above-described embodiment 1.
Figure BDA0003345438900000211
Watch 13
Figure BDA0003345438900000212
Figure BDA0003345438900000221
TABLE 14-1
Flour mark A18 A20 A22 A24 A26 A28 A30
S1 -1.1011E-04 -8.0586E-05 -5.7412E-05 -3.8930E-05 -2.2287E-05 -1.1689E-05 -5.6694E-06
S2 -4.3276E-05 2.0561E-05 -1.7927E-05 1.2214E-05 -6.2186E-06 3.8163E-06 -2.2679E-06
S3 -1.0566E-04 -2.7849E-05 -7.2664E-05 -2.2818E-05 -3.3771E-05 -6.7094E-06 -7.8718E-06
S4 -1.5384E-04 -9.2833E-05 -4.4559E-05 2.1651E-06 1.0616E-05 1.0068E-05 9.6197E-07
S5 -1.1611E-04 -1.2635E-05 5.7931E-05 7.8894E-05 6.3425E-05 3.2750E-05 9.8257E-06
S6 6.0116E-05 -1.5829E-05 -3.7304E-05 -3.1939E-05 -2.2009E-05 -1.4494E-05 -5.2443E-06
S7 -4.5557E-05 -2.0584E-04 -1.9762E-04 -1.1617E-04 -4.6326E-05 -1.2043E-05 -3.6363E-06
S8 -6.4686E-04 -6.5297E-04 -5.4253E-04 -3.2315E-04 -1.6968E-04 -5.2697E-05 -1.3199E-05
S9 2.5404E-05 2.4752E-05 -4.9741E-05 4.5572E-05 3.3315E-05 2.9172E-05 3.6516E-07
S10 -1.1899E-04 4.8598E-05 -6.6431E-05 -1.7084E-05 -2.0864E-05 -2.4776E-06 -1.9594E-06
S11 -4.3893E-04 8.6072E-05 -1.8125E-04 -5.2945E-05 -4.3395E-05 2.8894E-06 -1.2279E-06
S12 -5.2893E-04 1.3261E-04 -2.8227E-04 -1.2695E-05 -2.9822E-05 1.8017E-05 -1.5180E-06
S13 1.8202E-04 7.3571E-04 -1.7662E-04 2.7456E-05 -9.1703E-05 -1.4066E-05 -2.7719E-05
S14 5.9859E-04 -9.8657E-05 -4.1888E-04 -6.3591E-05 2.1235E-05 5.7149E-05 -4.7943E-06
S15 4.0457E-04 3.6773E-05 7.9679E-04 1.0455E-04 9.0582E-05 2.4579E-05 2.1000E-05
S16 -3.5136E-04 -3.8849E-04 -1.0084E-04 -9.4497E-05 2.9091E-04 -2.7740E-05 5.2707E-05
S17 4.9809E-03 -4.0537E-03 3.9059E-03 -1.4550E-03 4.6180E-04 4.5933E-05 -4.1275E-05
S18 1.1559E-02 -3.6249E-03 5.4205E-03 -5.2877E-04 1.7400E-03 1.7391E-04 4.7946E-04
TABLE 14-2
Fig. 14A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 7, which represents the convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 14B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging lens of embodiment 7. 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 chromatic aberration of magnification curve of the optical imaging lens of embodiment 7, which represents a deviation of different image heights on the imaging surface after light passes through the lens. As can be seen from fig. 14A to 14D, the optical imaging lens according to embodiment 7 can achieve good imaging quality.
Further, in embodiments 1 to 7, the effective focal length f of the optical imaging lens, the effective focal length values f1 to f9 of the respective lenses, the distance TTL along the optical axis from the object side surface of the first lens to the imaging surface of the optical imaging lens, half ImgH of the diagonal length of the effective pixel area on the imaging surface, and half Semi-FOV of the maximum angle of view of the optical imaging lens are as shown in table 15.
Figure BDA0003345438900000222
Figure BDA0003345438900000231
Table 15 each of the conditional expressions in example 1 to example 7 satisfies the condition shown in table 16.
Conditions/examples 1 2 3 4 5 6 7
f8/(R15+R16) 1.94 1.95 1.96 1.96 1.77 1.77 1.78
TTL/ImgH 1.30 1.43 1.30 1.30 1.48 1.48 1.49
f/EPD 1.51 1.51 1.51 1.60 1.60 1.80 1.80
ET8/ET1 2.52 2.38 2.57 2.41 1.83 1.68 1.69
f6/f3 1.63 1.70 1.43 1.59 0.58 1.07 0.94
f3/R5 -2.35 -2.29 -2.47 -2.30 -4.74 -3.56 -3.44
(R3+R4)/(R3-R4) 2.60 2.59 2.67 2.61 1.19 1.50 1.50
(SAG11+SAG12)/(SAG11-SAG12) 1.77 1.78 1.78 1.74 1.22 1.33 1.33
(SAG71+SAG72)/(SAG71-SAG72) -5.25 -4.45 -5.16 -5.11 -3.30 -3.59 -3.76
SAG52/SAG62 3.31 3.46 3.10 3.19 3.56 2.74 1.87
TTL/SD 1.42 1.43 1.42 1.42 1.48 1.47 1.48
CT4/ET4 3.43 3.43 3.49 3.38 3.08 2.77 2.81
T23/(CT2+CT3) 1.39 1.40 1.61 1.42 1.03 1.43 1.05
V1-V2 26.30 26.30 26.30 26.30 26.30 26.30 26.30
V4-V5 18.60 18.60 18.60 18.60 18.60 18.60 18.60
TABLE 16
The present application also provides an imaging Device, which is provided with an electron sensing element to form an image, wherein the electron sensing element may be a Charge Coupled Device (CCD) or a Complementary Metal Oxide Semiconductor (CMOS). The imaging device may be a stand-alone imaging device such as a digital camera, or may be an imaging module integrated on a mobile electronic device such as a mobile phone. The imaging device is equipped with the optical imaging lens described above.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of protection covered by the present application is not limited to the embodiments with a specific combination of the features described above, but also covers other embodiments with any combination of the features described above or their equivalents without departing from the scope of the present application. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims (10)

1. The optical imaging lens assembly, in order from an object side to an image side along an optical axis, comprises: the lens comprises a first lens with positive focal power, a second lens with focal power, a diaphragm, a third lens with negative focal power, a fourth lens with focal power, a fifth lens with positive focal power, a sixth lens with negative focal power, a seventh lens with focal power, an eighth lens with focal power and a ninth lens with focal power, wherein the first lens is made of glass; the image side surface of the fifth lens is a convex surface; the object side surface of the seventh lens is a concave surface, and the image side surface of the seventh lens is a convex surface; an effective focal length f8 of the eighth lens, a radius of curvature R15 of an object-side surface of the eighth lens, and a radius of curvature R16 of an image-side surface of the eighth lens satisfy: f8/(R15+ R16) is not less than 1.7.
2. The optical imaging lens of claim 1, wherein a distance TTL between an object side surface of the first lens element and an imaging surface of the optical imaging lens along the optical axis and a half ImgH of a diagonal length of an effective pixel area on the imaging surface satisfy:
TTL/ImgH≤1.5。
3. the optical imaging lens of claim 1, wherein the effective focal length f of the optical imaging lens and the entrance pupil diameter EPD of the optical imaging lens satisfy:
f/EPD≤1.8。
4. the optical imaging lens of claim 1, wherein the Semi-FOV of the maximum field angle of the optical imaging lens satisfies:
Semi-FOV≥40°。
5. the optical imaging lens according to claim 1, wherein ImgH, which is half the diagonal length of an effective pixel area on an imaging plane of the optical imaging lens, satisfies:
ImgH＞8.0mm。
6. the optical imaging lens of claim 1, wherein the edge thickness ET8 of the eighth lens and the edge thickness ET1 of the first lens satisfy:
1.5＜ET8/ET1＜3.0。
7. the optical imaging lens of claim 1, wherein the effective focal length f6 of the sixth lens and the effective focal length f3 of the third lens satisfy:
0.5＜f6/f3＜2.0。
8. the optical imaging lens of claim 1, wherein the effective focal length f3 of the third lens and the radius of curvature R5 of the object side of the third lens satisfy:
-5.0＜f3/R5＜-2.0。
9. the optical imaging lens of claim 1, wherein the radius of curvature R3 of the object-side surface of the second lens and the radius of curvature R4 of the image-side surface of the second lens satisfy:
1.0＜(R3+R4)/(R3-R4)＜3.0。
10. the optical imaging lens assembly, in order from an object side to an image side along an optical axis, comprises: the lens comprises a first lens with positive focal power, a second lens with focal power, a diaphragm, a third lens with negative focal power, a fourth lens with focal power, a fifth lens with positive focal power, a sixth lens with negative focal power, a seventh lens with focal power, an eighth lens with focal power and a ninth lens with focal power, wherein the first lens is made of glass; the image side surface of the fifth lens is a convex surface; the object side surface of the seventh lens is a concave surface, and the image side surface of the seventh lens is a convex surface; the distance TTL from the object side surface of the first lens to the imaging surface of the optical imaging lens along the optical axis and the half of the diagonal length ImgH of the effective pixel area on the imaging surface satisfy that: TTL/ImgH is less than or equal to 1.5.
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Citations (3)

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Publication number Priority date Publication date Assignee Title
CN111929839A (en) * 2020-09-15 2020-11-13 瑞泰光学(常州)有限公司 Image pickup optical lens
CN212391656U (en) * 2020-06-01 2021-01-22 浙江舜宇光学有限公司 Optical imaging system
CN113484977A (en) * 2020-06-01 2021-10-08 浙江舜宇光学有限公司 Optical imaging system

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Publication number Priority date Publication date Assignee Title
CN212391656U (en) * 2020-06-01 2021-01-22 浙江舜宇光学有限公司 Optical imaging system
CN113484977A (en) * 2020-06-01 2021-10-08 浙江舜宇光学有限公司 Optical imaging system
CN111929839A (en) * 2020-09-15 2020-11-13 瑞泰光学(常州)有限公司 Image pickup optical lens

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