Optical imaging system

Abstract

An optical imaging system includes 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, arranged in ascending numerical order from the object side of the optical imaging system toward the imaging surface of the optical imaging system. The first lens has positive refractive power, the second lens has positive refractive power, and the third lens has negative refractive power. The Abbe number of the third lens is less than the Abbe number of the first lens and less than the Abbe number of the second lens, and satisfies TTL / (2×IMG HT) < 0.7, where TTL is the distance from the object-side surface of the first lens to the imaging surface, and IMG HT is half the diagonal length of the imaging surface.

Description

[Technical Field]

[0001] [Cross-reference to related applications]

[0002] This application claims priority to Korean Patent Application No. 10-2023-0057877, filed on May 3, 2023, with the Korean Intellectual Property Office, the entire disclosure of which is incorporated herein by reference for all purposes.

[0003] This disclosure relates to an optical imaging system. [Previous Technology]

[0004] Recent portable terminals are equipped with cameras including optical imaging systems containing multiple lenses, enabling video calls and image capture.

[0005] In addition, as the functions of cameras in portable terminals gradually increase, the demand for high-resolution cameras for portable terminals is also increasing.

[0006] Furthermore, as portable terminals become smaller, there is a need for thinner cameras for portable terminals, and therefore a need to develop thin and high-resolution optical imaging systems. [Summary of the Invention]

[0007] This summary is provided to introduce, in a simplified form, a series of concepts further elaborated in the embodiments below. This summary is not intended to identify key or essential features of the claimed subject matter, nor is it intended to help determine the scope of the claimed subject matter.

[0008] In a general case, an optical imaging system includes: 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, arranged sequentially along the optical axis of the optical imaging system from the object side of the optical imaging system toward the imaging surface of the optical imaging system in ascending numerical order. The first lens has positive refractive power, the second lens has positive refractive power, and the third lens has negative refractive power. The Abbe number of the third lens is less than the Abbe number of the first lens and less than the Abbe number of the second lens, and satisfies TTL / (2×IMG HT) < 0.7, where TTL is the distance along the optical axis from the object side surface of the first lens to the imaging surface, and IMG HT is half the diagonal length of the imaging surface.

[0009] It can satisfy one or both of v1-v3 < 45 and v1-v5 < 45, where v1 is the Abbe number of the first lens, v3 is the Abbe number of the third lens, and v5 is the Abbe number of the fifth lens.

[0010] It can satisfy 35 < v3+v5 < 45.

[0011] It can satisfy 0 < f1 / f < 30, where f1 is the focal length of the first lens and f is the total focal length of the optical imaging system.

[0012] It can satisfy 0 < f2 / f < 3, where f2 is the focal length of the second lens and f is the total focal length of the optical imaging system.

[0013] It can satisfy -3 < f3 / f < 0, where f3 is the focal length of the third lens and f is the total focal length of the optical imaging system.

[0014] It can satisfy 0.4 < |f12 / f3| < 0.6, where f12 is the composite focal length of the first lens and the second lens, and f3 is the focal length of the third lens.

[0015] It can satisfy 4.5 < f1 / f2 < 21, where f1 is the focal length of the first lens and f2 is the focal length of the second lens.

[0016] It can satisfy 0.4 < |f2 / f3| < 0.7, where f2 is the focal length of the second lens.

[0017] It can satisfy 0.09 < |f3 / f1| < 0.32, where f1 is the focal length of the first lens.

[0018] It can satisfy TTL / f < 1.5 and BFL / f < 0.5, where BFL is the distance along the optical axis from the image side surface of the ninth lens to the imaging surface, and f is the total focal length of the optical imaging system.

[0019] It can satisfy Fno ≤ 1.69, where Fno is the F number of the optical imaging system.

[0020] It can satisfy FOV×IMG HT / f > 60°, where FOV is the field of view of the optical imaging system and f is the total focal length of the optical imaging system.

[0021] It can satisfy one or both of SWA11 < 25° and SWA21 < 36°, wherein SWA11 is the sweep angle at the end of the effective diameter of the object-side surface of the first lens, and SWA21 is the sweep angle at the end of the effective diameter of the object-side surface of the second lens.

[0022] Each of the first to sixth lenses may have a convex object-side surface in its respective paraxial region and a concave image-side surface in its respective paraxial region.

[0023] The sum of the Abbe number of the third lens and the Abbe number of the fifth lens may be less than the Abbe number of the fourth lens.

[0024] The ninth lens may have negative refractive power, and has a convex object-side surface in the paraxial region of the ninth lens and a concave image-side surface in the paraxial region of the ninth lens.

[0025] Each of the first lens and the second lens may have an Abbe number greater than 54 and less than 57, and the third lens may have an Abbe number greater than 18 and less than 24.

[0026] The fifth lens may have a refractive index greater than 1.64 and an Abbe number less than 21.

[0027] Two of the fifth to seventh lenses may have a refractive index greater than 1.61 and an Abbe number less than 26.

[0028] The Abbe number of the seventh lens may be less than the Abbe number of the eighth lens and may be less than the Abbe number of the ninth lens.

[0029] The focal length of the second lens may be less than the absolute value of the focal length of the third lens, and the absolute value of the focal length of the third lens may be less than the focal length of the first lens.

[0030] The optical imaging system may have a field of view greater than 80° and less than 85°.

[0031] Other features and characteristics will become apparent from reading the following detailed description, drawings and claims.

Implementation Method

[0033] The following detailed description is provided to assist the reader in gaining a comprehensive understanding of the methods, apparatus, and / or systems described herein. However, various modifications, refinements, and equivalents of the methods, apparatus, and / or systems described herein will become apparent after understanding the disclosure of this application. For example, the order of operations described herein is merely illustrative and is not intended to limit the reader to the order of operations described herein, but as will become apparent after understanding the disclosure of this application, changes may be made except for operations that must occur in a specific order. Furthermore, for clarity and brevity, descriptions of features known in this art may be omitted.

[0034] The features described herein may be implemented in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein are provided merely to illustrate some of the many possible ways of implementing the methods, apparatus and / or systems described herein that will become apparent upon understanding the disclosure of this application.

[0035] Throughout the specification, when an element such as a layer, region, or substrate is described as being "on," "connected to," or "coupled to" another element, the element may be directly "on," directly "connected to," or directly "coupled to" the other element, or one or more other elements may be present in between. In contrast, when an element is described as being "directly on," "directly connected to," or "directly coupled to" another element, no other elements may be present in between.

[0036] The term "and / or" as used herein includes any one of the related listed items and any combination of any two or more.

[0037] Although terms such as "first," "second," and "third" may be used herein to describe various components, parts, areas, layers, or sections, these components, parts, areas, layers, or sections are not limited by these terms. Rather, these terms are used only to distinguish individual components, parts, areas, layers, or sections. Therefore, without departing from the teaching of the examples, the first component, part, area, layer, or section mentioned in the examples described herein may also be referred to as the second component, part, area, layer, or section.

[0038] For ease of explanation, spatially relative terms such as "above," "upper," "below," and "lower" may be used herein to describe the relationship between one element and another shown in the figures. These spatially relative terms are intended to encompass not only the orientation shown in the figures but also different orientations of the device during use or operation. For example, if the device in the figure is rotated, an element described as being "above" or "upper" relative to another element will be described as being "below" or "lower" relative to that other element. Therefore, depending on the spatial orientation of the device, the term "above" encompasses both upper and lower orientations. The device may also be oriented in other ways (e.g., rotated 90 degrees or in other orientations), and the spatially relative terms used herein will be interpreted accordingly.

[0039] The terminology used herein is for illustrative purposes only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the articles "a" and "the" are intended to include the plural form as well. The terms "comprises," "includes," and "has" indicate the presence of the stated features, numbers, operations, components, elements, and / or combinations thereof, but do not preclude the presence or addition of one or more other features, numbers, operations, components, elements, and / or combinations thereof.

[0040] In the figures, the thickness, size, and shape of the lens may be exaggerated for illustrative purposes. Specifically, the shapes of the spherical or aspherical surfaces shown in the figures are presented as examples only and are not limited thereto.

[0041] The optical imaging system according to an embodiment of the present disclosure includes nine lenses.

[0042] The first lens refers to the lens closest to the object side of the optical imaging system, while the ninth lens refers to the lens closest to the imaging surface (or image sensor) of the optical imaging system.

[0043] In addition, in each lens, the first surface (or object-side surface) represents the surface closest to the object side of the optical imaging system, while the second surface (or image-side surface) represents the surface closest to the imaging surface of the optical imaging system.

[0044] In addition, in one or more embodiments of the optical imaging system, the values ​​of the radius of curvature, thickness, distance and focal length of the lens are all expressed in millimeters, and the field of view (FOV) of the optical imaging system is expressed in degrees (°).

[0045] In addition, when describing the shape of each lens, the statement that the surface is convex means that the paraxial region of the corresponding surface is convex, and the statement that the surface is concave means that the paraxial region of the corresponding surface is concave.

[0046] Therefore, even if one surface of the lens is described as having a convex shape, the edge portion of said surface may be concave. Similarly, even if one surface of the lens is described as having a concave shape, the edge portion of said surface may be convex.

[0047] The paraxial region of the lens surface is the central part of the optical axis surrounding the lens surface, in which the light rays incident on the lens surface make a small angle θ with the optical axis, and the approximate values ​​sin θ ≈ θ, tan θ ≈ θ and cos θ ≈ 1 are valid.

[0048] The imaging surface may refer to a virtual surface on which an optical imaging system forms a focal point. Alternatively, the imaging surface may refer to a surface on which an image sensor receives light via an optical imaging system.

[0049] The optical imaging system according to an embodiment of the present disclosure includes at least nine lenses.

[0050] For example, an optical imaging system according to an embodiment of the present disclosure includes 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 arranged sequentially along the optical axis of the optical imaging system from the object side of the optical imaging system toward the imaging surface of the optical imaging system in ascending numerical order. Adjacent lenses among the first to ninth lenses are spaced apart from each other by a predetermined distance along the optical axis.

[0051] The optical imaging system according to the present disclosure may further include an image sensor that converts an image of an incident object into an electrical signal.

[0052] In addition, the optical imaging system may further include an infrared blocking filter (hereinafter referred to as a filter) that blocks infrared light. The filter may be disposed between the ninth lens and the imaging surface.

[0053] In addition, the optical imaging system may further include an aperture to adjust the amount of light reaching the imaging surface.

[0054] The first to ninth lenses forming the optical imaging system according to the embodiments of this disclosure may be made of plastic material.

[0055] In addition, at least one of the first to ninth lenses has an aspherical surface. For example, each of the first to ninth lenses may have at least one aspherical surface.

[0056] That is, one or both of the first and second surfaces of the first to ninth lenses may be aspherical surfaces. The aspherical surfaces of the first to ninth lenses are represented by the following Equation 1. (1)

[0057] In Equation 1, c is the curvature of the lens and is equal to the reciprocal of the radius of curvature of the lens surface at the optical axis. K is the conic constant, and Y is the distance from any point on the aspherical surface of the lens to the optical axis. Additionally, constants A to H, J, and L to P are aspherical surface coefficients. Z (also known as sag) is the distance in a direction parallel to the optical axis between a point on the aspherical surface of the lens at a distance Y from the optical axis and a tangent plane perpendicular to the optical axis and intersecting the vertex of the aspherical surface.

[0058] The optical imaging system according to the embodiments of this disclosure can satisfy any one or any combination of two or more of the following conditional expressions. 0 < f1 / f < 30 (Conditional Expression 1) 0 < f2 / f < 3 (Conditional Expression 2) -3 < f3 / f < 0 (Conditional Expression 3) -1 < f4 / f / 100 < 0.5 (Conditional Expression 4) -0.5 < f5 / f / 100 < 1 (Conditional Expression 5) -2 < f6 / f / 100 < 1.5 (Conditional Expression 6) -0.5 < f7 / f / 15 (Conditional Expression 7) -1 < f8 / f / 100 < 0.5 (Conditional Expression 8) -3 < f9 / f < 0 (Conditional Expression 9) v1-v3 < 45 (Conditional Expression 10) v1-v5 < 45 (Conditional Expression 11) TTL / f < 1.5 (Conditional Expression 12) BFL / f < 0.5 (Conditional Expression 13) TTL / (2×IMG HT) < 0.7 (Conditional Expression 14) FOV×IMG HT / f > 60° (Conditional Expression 15) Fno ≤ 1.69 (Conditional Expression 16) SWA11 < 25° (Conditional Expression 17) SWA21 < 36° (Conditional Expression 18) Nv26 ≤ 3 (Conditional Expression 19) 35 < v3+v5 < 45 (Conditional Expression 20) 4.5 < f1 / f2 < 21 (Conditional Expression 21) 0.4 < |f12 / f3| < 0.6 (Conditional Expression 22) 0.4 < |f2 / f3| < 0.7 (Conditional Expression 23) 0.09 < |f3 / f1| < 0.32 (Conditional expression 24)

[0059] In the conditional expression, f1 is the focal length of the first lens, f2 is the focal length of the second lens, f3 is the focal length of the third lens, f4 is the focal length of the fourth lens, f5 is the focal length of the fifth lens, f6 is the focal length of the sixth lens, f7 is the focal length of the seventh lens, f8 is the focal length of the eighth lens, f9 is the focal length of the ninth lens, f12 is the composite focal length of the first and second lenses, and f is the total focal length of the optical imaging system.

[0060] v1 is the Abbe number of the first lens, v3 is the Abbe number of the third lens, and v5 is the Abbe number of the fifth lens.

[0061] Nv26 is the number of lenses with an Abbe number less than 26.

[0062] TTL is the distance along the optical axis from the object-side surface of the first lens to the imaging surface, BFL is the distance along the optical axis from the image-side surface of the ninth lens to the imaging surface, and IMG HT is half the diagonal length of the imaging surface.

[0063] FOV is the field of view of the optical imaging system, and Fno is the F number of the optical imaging system.

[0064] SWA11 is the sweep angle at the end of the effective diameter of the object-side surface of the first lens, and SWA21 is the sweep angle at the end of the effective diameter of the object-side surface of the second lens.

[0065] Referring to Figure 31, the sweep angle at a specific location on the object-side surface of the lens can be defined as the angle between the tangent TL1 at the vertex of the object-side surface of the lens and the tangent TL2 at the specific location, or the angle between the straight line TL1 perpendicular to the optical axis of the object-side surface of the lens and the tangent TL2 at the specific location. The vertex of the object-side surface of the lens can be the point where the object-side surface of the lens intersects with the optical axis of the object-side surface of the lens.

[0066] For example, the sweep angle SWA11 at the end of the effective diameter of the object-side surface of the first lens can be defined as the angle between the tangent at the vertex of the object-side surface of the first lens and the tangent at the end of the effective diameter of the object-side surface of the first lens. The sweep angle SWA21 at the end of the effective diameter of the object-side surface of the second lens can be defined as the angle between the tangent at the vertex of the object-side surface of the second lens and the tangent at the end of the effective diameter of the object-side surface of the second lens.

[0067] The first lens has positive refractive power. Furthermore, the first lens may have a meniscus shape that convexes towards the object side. Additionally, the first surface of the first lens may be convex in the paraxial region, while the second surface of the first lens may be concave in the paraxial region.

[0068] The second lens has positive refractive power. Furthermore, the second lens may have a meniscus shape that convexes towards the object side. Additionally, the first surface of the second lens may be convex in the paraxial region, while the second surface of the second lens may be concave in the paraxial region.

[0069] The third lens has negative refractive power. Furthermore, the third lens may have a meniscus shape that convexes towards the object side. Additionally, the first surface of the third lens may be convex in the paraxial region, while the second surface of the third lens may be concave in the paraxial region.

[0070] The fourth lens has negative or positive refractive power. Additionally, the fourth lens may have a meniscus shape that convexes towards the object side. Furthermore, the first surface of the fourth lens may be convex in the paraxial region, while the second surface of the fourth lens may be concave in the paraxial region.

[0071] The fifth lens has negative or positive refractive power. Additionally, the fifth lens may have a meniscus shape that convexes towards the object side. Furthermore, the first surface of the fifth lens may be convex in the paraxial region, while the second surface of the fifth lens may be concave in the paraxial region.

[0072] The sixth lens has negative or positive refractive power. Additionally, the sixth lens may have a meniscus shape that convexes towards the object side. Furthermore, the first surface of the sixth lens may be convex in the paraxial region, while the second surface of the sixth lens may be concave in the paraxial region.

[0073] The seventh lens has negative or positive refractive power. Additionally, the seventh lens may have a meniscus shape that convexes towards the image side. Furthermore, the first surface of the seventh lens may be concave in the paraxial region, while the second surface of the seventh lens may be convex in the paraxial region. Alternatively, the seventh lens may have a shape where both surfaces are convex. Furthermore, both the first and second surfaces of the seventh lens may be convex in the paraxial region.

[0074] The eighth lens has either negative or positive refractive power. Additionally, the eighth lens may have a meniscus shape convex towards the object side. Furthermore, the first surface of the eighth lens may be convex in the paraxial region, while the second surface of the eighth lens may be concave in the paraxial region. Alternatively, the eighth lens may have a meniscus shape convex towards the image side. Furthermore, the first surface of the eighth lens may be concave in the paraxial region, while the second surface of the eighth lens may be convex in the paraxial region.

[0075] The ninth lens has negative refractive power. Furthermore, the ninth lens may have a meniscus shape that convexes towards the object side. Additionally, the first surface of the ninth lens may be convex in the paraxial region, while the second surface of the ninth lens may be concave in the paraxial region.

[0076] Furthermore, at least one of the fifth to ninth lenses may have at least one inflection point formed on one or both of the first and second surfaces. For example, the first surface of the fifth lens may be convex in the paraxial region and concave in the peripheral region outside the paraxial region. The second surface of the fifth lens may be concave in the paraxial region and convex in the peripheral region outside the paraxial region.

[0077] Each of the first and second lenses may have an Abbe number greater than 54 and less than 57. Furthermore, the third lens may have an Abbe number greater than 18 and less than 24.

[0078] The Abbe number of the fourth lens may be greater than the Abbe number of the third lens. In addition, the sum of the Abbe numbers of the third lens and the fifth lens may be less than the Abbe number of the fourth lens.

[0079] The fifth lens may have a refractive index greater than 1.64 and an Abbe number less than 21.

[0080] Two of the fifth to seventh lenses may have a refractive index greater than 1.61 and an Abbe number less than 26.

[0081] The Abbe number of the seventh lens may be less than the Abbe number of the eighth lens and less than the Abbe number of the ninth lens.

[0082] The focal length of the second lens may be less than the absolute value of the focal length of the third lens, and the absolute value of the focal length of the third lens may be less than the focal length of the first lens.

[0083] The optical imaging system according to an embodiment of this disclosure can be configured to have a field of view greater than 80°. In an embodiment, the field of view of the optical imaging system may be less than 85°.

[0084] FIG1 is a structural diagram of an optical imaging system according to a first embodiment of the present disclosure, and FIG2 is a diagram showing the aberration characteristics of the optical imaging system shown in FIG1.

[0085] Referring to FIG1, the optical imaging system 100 according to the first embodiment of the present disclosure includes a first lens 101, a second lens 102, a third lens 103, a fourth lens 104, a fifth lens 105, a sixth lens 106, a seventh lens 107, an eighth lens 108 and a ninth lens 109, and may further include a filter 110 and an image sensor IS.

[0086] The optical imaging system 100 according to the first embodiment of this disclosure can form a focal point on an imaging surface 111. The imaging surface 111 may refer to the surface on which the optical imaging system forms a focal point. In an example, the imaging surface 111 may refer to a surface on which an image sensor IS receives light.

[0087] The lens characteristics (radius of curvature, lens thickness, distance between lenses, refractive index, Abbe number, and focal length) of each lens are shown in Table 1 below. Table 1 Surface number element radius of curvature Thickness or distance Refractive index Abbe number focal length S1 First lens 3.110 0.374 1.544 55.99 37.06 S2 3.519 0.111 S3 Second lens 3.338 0.949 1.544 55.99 6.36 S4 75.139 0.033 S5 Third lens 16.743 0.210 1.639 23.49 -9.72 S6 4.541 0.226 S7 Fourth lens 5.762 0.388 1.544 55.99 21.7 S8 10.941 0.609 S9 Fifth lens 51.940 0.401 1.671 19.24 -52.34 S10 21.033 0.402 S11 Sixth lens 39.872 0.480 1.544 55.99 -66.59 S12 18.943 0.163 S13 Seventh Lens -6.448 0.380 1.614 25.94 -90.53 S14 -7.449 0.060 S15 Eighth lens 2.156 0.538 1.544 55.99 7.89 S16 3.937 1.228 S17 Ninth Lens 32.913 0.400 1.535 55.74 -5.95 S18 2.900 0.306 S19 Filter infinity 0.210 1.517 64.20 S20 infinity 0.775 S21 Imaging surface infinity

[0088] The total focal length f of the optical imaging system 100 according to the first embodiment of this disclosure is 6.8357 mm, Fno is 1.59, IMG HT is 6 mm, FOV is 80.8°, SWA11 is 19.045°, SWA21 is 33.395°, and f12 is 5.671 mm.

[0089] In the first embodiment disclosed herein, the first lens 101 has a positive refractive power, the first surface of the first lens 101 is convex in the paraxial region, and the second surface of the first lens 101 is concave in the paraxial region.

[0090] The second lens 102 has positive refractive power. The first surface of the second lens 102 is convex in the paraxial region, while the second surface of the second lens 102 is concave in the paraxial region.

[0091] The third lens 103 has a negative refractive power. The first surface of the third lens 103 is convex in the paraxial region, while the second surface of the third lens 103 is concave in the paraxial region.

[0092] The fourth lens 104 has positive refractive power. The first surface of the fourth lens 104 is convex in the paraxial region, while the second surface of the fourth lens 104 is concave in the paraxial region.

[0093] The fifth lens 105 has negative refractive power. The first surface of the fifth lens 105 is convex in the paraxial region, while the second surface of the fifth lens 105 is concave in the paraxial region.

[0094] The sixth lens 106 has a negative refractive power. The first surface of the sixth lens 106 is convex in the paraxial region, while the second surface of the sixth lens 106 is concave in the paraxial region.

[0095] The seventh lens 107 has a negative refractive power. The first surface of the seventh lens 107 is concave in the paraxial region, while the second surface of the seventh lens 107 is convex in the paraxial region.

[0096] The eighth lens 108 has positive refractive power. The first surface of the eighth lens 108 is convex in the paraxial region, while the second surface of the eighth lens 108 is concave in the paraxial region.

[0097] The ninth lens 109 has a negative refractive power. The first surface of the ninth lens 109 is convex in the paraxial region, while the second surface of the ninth lens 109 is concave in the paraxial region.

[0098] In addition, one or more of the fifth lens 105 to the ninth lens 109 have at least one inflection point formed on one or both of their respective first and second surfaces.

[0099] Each surface of the first lens 101 to the ninth lens 109 has an aspheric coefficient as shown in Table 2 below. For example, both the object-side surface and the image-side surface of each of the first lens 101 to the ninth lens 109 are aspherical surfaces. Table 2 S1 S2 S3 S4 S5 S6 Conic constant (K) -5.517 -12.092 -4.259 99.000 20.052 4.565 Fourth coefficient (A) 1.933E-02 1.397E-02 -2.160E-03 4.518E-02 3.735E-02 6.053E-03 Sixth coefficient (B) -3.085E-02 -4.567E-02 1.093E-03 -2.702E-01 -2.608E-01 -1.387E-01 The eighth coefficient (C) 6.061E-02 1.079E-01 -8.651E-03 7.191E-01 7.711E-01 5.715E-01 The tenth coefficient (D) -9.012E-02 -1.882E-01 4.058E-02 -1.197E+00 -1.430E+00 -1.469E+00 The twelfth coefficient (E) 9.244E-02 2.266E-01 -8.070E-02 1.352E+00 1.814E+00 2.542E+00 Fourteenth coefficient (F) -6.691E-02 -1.899E-01 9.668E-02 -1.077E+00 -1.632E+00 -3.073E+00 The sixteenth coefficient (G) 3.473E-02 1.132E-01 -7.649E-02 6.190E-01 1.064E+00 2.656E+00 The eighteenth coefficient (H) -1.303E-02 -4.860E-02 4.166E-02 -2.594E-01 -5.069E-01 -1.659E+00 The twentieth coefficient (J) 3.526E-03 1.508E-02 -1.590E-02 7.928E-02 1.766E-01 7.502E-01 The twenty-second coefficient (L) -6.799E-04 -3.351E-03 4.248E-03 -1.746E-02 -4.441E-02 -2.429E-01 The twenty-fourth coefficient (M) 9.075E-05 5.199E-04 -7.795E-04 2.697E-03 7.846E-03 5.487E-02 The 26th coefficient (N) -7.927E-06 -5.349E-05 9.363E-05 -2.768E-04 -9.231E-04 -8.209E-03 The twenty-eighth coefficient (O) 4.050E-07 3.279E-06 -6.632E-06 1.694E-05 6.490E-05 7.306E-04 The thirtieth coefficient (P) -9.087E-09 -9.062E-08 2.101E-07 -4.671E-07 -2.061E-06 -2.928E-05 S7 S8 S9 S10 S11 S12 Conic constant (K) -8.237 -64.854 -99.000 -74.600 56.326 10.586 Fourth coefficient (A) 6.270E-04 -7.096E-03 -2.960E-02 -3.370E-02 -6.276E-02 -9.275E-02 Sixth coefficient (B) -2.500E-02 3.036E-02 8.598E-04 1.322E-02 2.811E-02 3.620E-02 The eighth coefficient (C) 8.655E-02 -1.314E-01 -1.213E-02 -2.175E-02 1.989E-02 -2.576E-03 The tenth coefficient (D) -2.104E-01 3.452E-01 6.403E-02 4.314E-02 -7.486E-02 -1.521E-02 The twelfth coefficient (E) 3.705E-01 -6.140E-01 -1.705E-01 -7.246E-02 1.075E-01 2.160E-02 Fourteenth coefficient (F) -4.723E-01 7.734E-01 2.710E-01 8.448E-02 -1.015E-01 -1.850E-02 The sixteenth coefficient (G) 4.370E-01 -7.059E-01 -2.839E-01 -6.799E-02 6.806E-02 1.056E-02 The eighteenth coefficient (H) -2.933E-01 4.714E-01 2.058E-01 3.854E-02 -3.309E-02 -4.114E-03 The twentieth coefficient (J) 1.420E-01 -2.302E-01 -1.052E-01 -1.556E-02 1.170E-02 1.106E-03 The twenty-second coefficient (L) -4.898E-02 8.115E-02 3.798E-02 4.456E-03 -2.975E-03 -2.049E-04 The twenty-fourth coefficient (M) 1.171E-02 -2.009E-02 -9.480E-03 -8.856E-04 5.298E-04 2.555E-05 The 26th coefficient (N) -1.841E-03 3.313E-03 1.560E-03 1.163E-04 -6.263E-05 -2.032E-06 The twenty-eighth coefficient (O) 1.710E-04 -3.264E-04 -1.524E-04 -9.078E-06 4.412E-06 9.185E-08 The thirtieth coefficient (P) -7.110E-06 1.453E-05 6.705E-06 3.196E-07 -1.400E-07 -1.755E-09 S13 S14 S15 S16 S17 S18 Conic constant (K) 3.384 2.029 -7.436 -13.027 24.864 -13.487 Fourth coefficient (A) 5.179E-02 3.583E-03 2.902E-03 3.067E-02 -9.969E-02 -5.050E-02 Sixth coefficient (B) -6.312E-02 3.551E-03 -3.912E-03 -1.869E-02 4.168E-02 1.934E-02 The eighth coefficient (C) 5.710E-02 -1.512E-02 -8.030E-03 3.714E-03 -1.419E-02 -6.175E-03 The tenth coefficient (D) -4.232E-02 1.856E-02 9.321E-03 6.853E-04 3.807E-03 1.538E-03 The twelfth coefficient (E) 2.845E-02 -1.277E-02 -5.497E-03 -7.614E-04 -7.331E-04 -2.929E-04 Fourteenth coefficient (F) -1.715E-02 5.554E-03 2.082E-03 2.757E-04 9.751E-05 4.239E-05 The sixteenth coefficient (G) 8.223E-03 -1.628E-03 -5.427E-04 -6.057E-05 -8.838E-06 -4.670E-06 The eighteenth coefficient (H) -2.901E-03 3.330E-04 1.000E-04 8.955E-06 5.329E-07 3.917E-07 The twentieth coefficient (J) 7.334E-04 -4.828E-05 -1.308E-05 -9.169E-07 -1.975E-08 -2.476E-08 The twenty-second coefficient (L) -1.310E-04 4.946E-06 1.197E-06 6.489E-08 3.144E-10 1.153E-09 The twenty-fourth coefficient (M) 1.617E-05 -3.499E-07 -7.415E-08 -3.091E-09 6.957E-12 -3.808E-11 The 26th coefficient (N) -1.314E-06 1.624E-08 2.921E-09 9.344E-11 -4.755E-13 8.394E-13 The twenty-eighth coefficient (O) 6.345E-08 -4.439E-10 -6.465E-11 -1.584E-12 9.821E-15 -1.102E-14 The thirtieth coefficient (P) -1.380E-09 5.392E-12 5.888E-13 1.100E-14 -7.627E-17 6.493E-17

[0100] In addition, the optical imaging system 100 configured as described above may have the aberration characteristics shown in FIG2.

[0101] FIG3 is a structural diagram of an optical imaging system according to a second embodiment of the present disclosure, and FIG4 is a diagram showing the aberration characteristics of the optical imaging system shown in FIG3.

[0102] Referring to FIG3, the optical imaging system 200 according to the second embodiment of the present disclosure includes a first lens 201, a second lens 202, a third lens 203, a fourth lens 204, a fifth lens 205, a sixth lens 206, a seventh lens 207, an eighth lens 208 and a ninth lens 209, and may further include a filter 210 and an image sensor IS.

[0103] The optical imaging system 200 according to the second embodiment of this disclosure can form a focal point on an imaging surface 211. The imaging surface 211 may refer to the surface on which the optical imaging system forms a focal point. In an example, the imaging surface 211 may refer to a surface on which an image sensor IS receives light.

[0104] The lens characteristics (radius of curvature, lens thickness, distance between lenses, refractive index, Abbe number, and focal length) of each lens are shown in Table 3 below. Table 3 Surface number element radius of curvature Thickness or distance Refractive index Abbe number focal length S1 First lens 3.111 0.360 1.544 55.99 33.0131 S2 3.605 0.120 S3 Second lens 3.415 0.947 1.544 55.99 6.5329 S4 71.440 0.031 S5 Third lens 16.549 0.210 1.639 23.49 -9.7654 S6 4.542 0.218 S7 Fourth lens 5.828 0.396 1.544 55.99 21.461 S8 11.311 0.616 S9 Fifth lens 53.474 0.397 1.671 19.24 -49.099 S10 20.472 0.408 S11 Sixth lens 51.314 0.480 1.544 55.99 -49.6532 S12 17.687 0.160 S13 Seventh Lens -6.868 0.380 1.614 25.94 397.9142 S14 -6.824 0.060 S15 Eighth lens 2.211 0.526 1.544 55.99 8.3442 S16 3.931 1.246 S17 Ninth Lens 32.726 0.400 1.535 55.74 -5.8621 S18 2.860 0.306 S19 Filter infinity 0.210 1.517 64.20 S20 infinity 0.750 S21 Imaging surface infinity

[0105] The total focal length f of the optical imaging system 200 according to the second embodiment of this disclosure is 6.8353 mm, Fno is 1.59, IMG HT is 6 mm, FOV is 80.5°, SWA11 is 19.011°, SWA21 is 32.83°, and f12 is 5.684 mm.

[0106] In the second embodiment of this disclosure, the first lens 201 has a positive refractive power, the first surface of the first lens 201 is convex in the paraxial region, and the second surface of the first lens 201 is concave in the paraxial region.

[0107] The second lens 202 has positive refractive power. The first surface of the second lens 202 is convex in the paraxial region, while the second surface of the second lens 202 is concave in the paraxial region.

[0108] The third lens 203 has negative refractive power. The first surface of the third lens 203 is convex in the paraxial region, while the second surface of the third lens 203 is concave in the paraxial region.

[0109] The fourth lens 204 has positive refractive power. The first surface of the fourth lens 204 is convex in the paraxial region, while the second surface of the fourth lens 204 is concave in the paraxial region.

[0110] The fifth lens 205 has negative refractive power. The first surface of the fifth lens 205 is convex in the paraxial region, while the second surface of the fifth lens 205 is concave in the paraxial region.

[0111] The sixth lens 206 has a negative refractive power. The first surface of the sixth lens 206 is convex in the paraxial region, while the second surface of the sixth lens 206 is concave in the paraxial region.

[0112] The seventh lens 207 has positive refractive power. The first surface of the seventh lens 207 is concave in the paraxial region, while the second surface of the seventh lens 207 is convex in the paraxial region.

[0113] The eighth lens 208 has positive refractive power. The first surface of the eighth lens 208 is convex in the paraxial region, while the second surface of the eighth lens 208 is concave in the paraxial region.

[0114] The ninth lens 209 has negative refractive power. The first surface of the ninth lens 209 is convex in the paraxial region, while the second surface of the ninth lens 209 is concave in the paraxial region.

[0115] In addition, one or more of the fifth lens 205 to the ninth lens 209 have at least one inflection point formed on one or both of their respective first and second surfaces.

[0116] Each surface of the first lens 201 to the ninth lens 209 has an aspherical coefficient as shown in Table 4 below. For example, both the object-side surface and the image-side surface of each of the first lens 201 to the ninth lens 209 are aspherical surfaces. Table 4 S1 S2 S3 S4 S5 S6 Conic constant (K) -5.543 -12.191 -4.288 99.000 20.386 4.567 Fourth coefficient (A) 1.651E-02 6.602E-03 -4.429E-03 4.482E-02 3.687E-02 6.654E-03 Sixth coefficient (B) -1.679E-02 -6.928E-03 1.561E-02 -2.676E-01 -2.507E-01 -1.415E-01 The eighth coefficient (C) 2.552E-02 -5.854E-04 -4.678E-02 7.134E-01 7.258E-01 5.679E-01 The tenth coefficient (D) -3.526E-02 2.583E-03 9.632E-02 -1.197E+00 -1.323E+00 -1.430E+00 The twelfth coefficient (E) 3.429E-02 8.181E-04 -1.282E-01 1.371E+00 1.654E+00 2.435E+00 Fourteenth coefficient (F) -2.345E-02 -2.703E-03 1.178E-01 -1.113E+00 -1.471E+00 -2.902E+00 The sixteenth coefficient (G) 1.135E-02 1.629E-03 -7.671E-02 6.546E-01 9.484E-01 2.473E+00 The eighteenth coefficient (H) -3.889E-03 -2.711E-04 3.588E-02 -2.818E-01 -4.474E-01 -1.523E+00 The twentieth coefficient (J) 9.383E-04 -1.53​​3E-04 -1.207E-02 8.876E-02 1.542E-01 6.788E-01 The twenty-second coefficient (L) -1.561E-04 1.041E-04 2.893E-03 -2.021E-02 -3.834E-02 -2.166E-01 The twenty-fourth coefficient (M) 1.713E-05 -2.894E-05 -4.815E-04 3.236E-03 6.689E-03 4.819E-02 The 26th coefficient (N) -1.131E-06 4.431E-06 5.284E-05 -3.454E-04 -7.760E-04 -7.100E-03 The twenty-eighth coefficient (O) 3.612E-08 -3.661E-07 -3.435E-06 2.206E-05 5.371E-05 6.222E-04 The thirtieth coefficient (P) -2.142E-10 1.282E-08 1.002E-07 -6.373E-07 -1.677E-06 -2.455E-05 S7 S8 S9 S10 S11 S12 Conic constant (K) -7.809 -60.948 -99.000 -62.976 -75.590 -18.647 Fourth coefficient (A) -4.195E-04 -7.097E-03 -2.946E-02 -3.361E-02 -6.071E-02 -9.348E-02 Sixth coefficient (B) -1.922E-02 2.705E-02 -6.101E-03 1.284E-02 1.309E-02 1.598E-02 The eighth coefficient (C) 5.087E-02 -1.206E-01 2.572E-02 -1.998E-02 7.193E-02 4.342E-02 The tenth coefficient (D) -8.708E-02 3.290E-01 -5.090E-02 4.026E-02 -1.746E-01 -5.710E-02 The twelfth coefficient (E) 1.083E-01 -6.034E-01 5.174E-02 -7.172E-02 2.326E-01 3.398E-02 Fourteenth coefficient (F) -1.000E-01 7.802E-01 -2.239E-02 8.788E-02 -2.115E-01 -8.479E-03 The sixteenth coefficient (G) 6.894E-02 -7.274E-01 -9.651E-03 -7.346E-02 1.381E-01 -2.607E-03 The eighteenth coefficient (H) -3.497E-02 4.938E-01 2.109E-02 4.293E-02 -6.567E-02 3.298E-03 The twentieth coefficient (J) 1.271E-02 -2.438E-01 -1.53​​8E-02 -1.778E-02 2.277E-02 -1.490E-03 The twenty-second coefficient (L) -3.161E-03 8.650E-02 6.681E-03 5.209E-03 -5.690E-03 4.051E-04 The twenty-fourth coefficient (M) 4.961E-04 -2.146E-02 -1.876E-03 -1.056E-03 9.969E-04 -7.108E-05 The 26th coefficient (N) -4.013E-05 3.533E-03 3.364E-04 1.413E-04 -1.161E-04 7.902E-06 The twenty-eighth coefficient (O) 3.647E-07 -3.466E-04 -3.525E-05 -1.122E-05 8.070E-06 -5.076E-07 The thirtieth coefficient (P) 1.216E-07 1.533E-05 1.653E-06 4.009E-07 -2.530E-07 1.436E-08 S13 S14 S15 S16 S17 S18 Conic constant (K) 3.935 0.986 -7.142 -12.971 19.688 -14.329 Fourth coefficient (A) 5.302E-02 1.676E-02 4.567E-03 2.769E-02 -1.066E-01 -5.198E-02 Sixth coefficient (B) -9.232E-02 -2.303E-02 -7.135E-03 -1.242E-02 4.982E-02 2.208E-02 The eighth coefficient (C) 1.201E-01 2.041E-02 -3.836E-03 -2.528E-03 -1.948E-02 -7.997E-03 The tenth coefficient (D) -1.092E-01 -1.170E-02 5.951E-03 4.538E-03 5.874E-03 2.225E-03 The twelfth coefficient (E) 7.080E-02 4.191E-03 -3.795E-03 -2.393E-03 -1.250E-03 -4.620E-04 Fourteenth coefficient (F) -3.421E-02 -9.569E-04 1.518E-03 7.683E-04 1.845E-04 7.142E-05 The sixteenth coefficient (G) 1.260E-02 1.386E-04 -4.182E-04 -1.684E-04 -1.903E-05 -8.258E-06 The eighteenth coefficient (H) -3.542E-03 -1.134E-05 8.231E-05 2.618E-05 1.382E-06 7.148E-07 The twentieth coefficient (J) 7.534E-04 1.262E-07 -1.165E-05 -2.920E-06 -7.036E-08 -4.596E-08 The twenty-second coefficient (L) -1.187E-04 9.112E-08 1.174E-06 2.321E-07 2.458E-09 2.154E-09 The twenty-fourth coefficient (M) 1.341E-05 -1.209E-08 -8.183E-08 -1.283E-08 -5.604E-11 -7.115E-11 The 26th coefficient (N) -1.024E-06 7.985E-10 3.738E-09 4.686E-10 7.467E-13 1.564E-12 The twenty-eighth coefficient (O) 4.728E-08 -2.859E-11 -1.005E-10 -1.015E-11 -4.257E-15 -2.046E-14 The thirtieth coefficient (P) -9.956E-10 4.388E-13 1.205E-12 9.865E-14 -3.334E-18 1.203E-16

[0117] In addition, the optical imaging system 200 configured as described above may have the aberration characteristics shown in FIG4.

[0118] FIG5 is a structural diagram of an optical imaging system according to a third embodiment of the present disclosure, and FIG6 is a diagram showing the aberration characteristics of the optical imaging system shown in FIG5.

[0119] Referring to FIG5, the optical imaging system 300 according to the third embodiment of the present disclosure includes a first lens 301, a second lens 302, a third lens 303, a fourth lens 304, a fifth lens 305, a sixth lens 306, a seventh lens 307, an eighth lens 308 and a ninth lens 309, and may further include a filter 310 and an image sensor IS.

[0120] The optical imaging system 300 according to the third embodiment of this disclosure can form a focal point on an imaging surface 311. The imaging surface 311 can refer to the surface on which the optical imaging system forms a focal point. In an example, the imaging surface 311 can mean a surface on which an image sensor IS receives light.

[0121] The lens characteristics (radius of curvature, lens thickness, distance between lenses, refractive index, Abbe number, and focal length) of each lens are shown in Table 5 below. Table 5 Surface number element radius of curvature Thickness or distance Refractive index Abbe number focal length S1 First lens 3.110 0.373 1.544 55.99 39.1769 S2 3.485 0.106 S3 Second lens 3.306 0.945 1.544 55.99 6.328 S4 68.167 0.030 S5 Third lens 16.366 0.210 1.639 23.49 -9.7961 S6 4.538 0.227 S7 Fourth lens 5.740 0.386 1.544 55.99 22.8213 S8 10.386 0.601 S9 Fifth lens 34.291 0.401 1.671 19.24 -43.3858 S10 15.770 0.379 S11 Sixth lens 20.037 0.480 1.544 55.99 384.5405 S12 21.962 0.194 S13 Seventh Lens -6.002 0.389 1.614 25.94 -55.4949 S14 -7.450 0.080 S15 Eighth lens 2.148 0.509 1.544 55.99 8.1377 S16 3.807 1.226 S17 Ninth Lens 33.026 0.413 1.535 55.74 -5.9489 S18 2.901 0.306 S19 Filter infinity 0.210 1.517 64.20 S20 infinity 0.759 S21 Imaging surface infinity

[0122] The total focal length f of the optical imaging system 300 according to the third embodiment of this disclosure is 6.8389 mm, Fno is 1.59 mm, IMG HT is 6 mm, FOV is 80.5°, SWA11 is 19.065°, SWA21 is 33.45°, and f12 is 5.688 mm.

[0123] In the third embodiment of this disclosure, the first lens 301 has positive refractive power, the first surface of the first lens 301 is convex in the paraxial region, and the second surface of the first lens 301 is concave in the paraxial region.

[0124] The second lens 302 has refractive power. The first surface of the second lens 302 is convex in the paraxial region, while the second surface of the second lens 302 is concave in the paraxial region.

[0125] The third lens 303 has negative refractive power. The first surface of the third lens 303 is convex in the paraxial region, while the second surface of the third lens 303 is concave in the paraxial region.

[0126] The fourth lens 304 has positive refractive power. The first surface of the fourth lens 304 is convex in the paraxial region, while the second surface of the fourth lens 304 is concave in the paraxial region.

[0127] The fifth lens 305 has negative refractive power. The first surface of the fifth lens 305 is convex in the paraxial region, while the second surface of the fifth lens 305 is concave in the paraxial region.

[0128] The sixth lens 306 has positive refractive power. The first surface of the sixth lens 306 is convex in the paraxial region, while the second surface of the sixth lens 306 is concave in the paraxial region.

[0129] The seventh lens 307 has a negative refractive power. The first surface of the seventh lens 307 is concave in the paraxial region, while the second surface of the seventh lens 307 is convex in the paraxial region.

[0130] The eighth lens 308 has positive refractive power. The first surface of the eighth lens 308 is convex in the paraxial region, while the second surface of the eighth lens 308 is concave in the paraxial region.

[0131] The ninth lens 309 has negative refractive power. The first surface of the ninth lens 309 is convex in the paraxial region, while the second surface of the ninth lens 309 is concave in the paraxial region.

[0132] In addition, one or more of the fifth lens 305 to the ninth lens 309 have at least one inflection point formed on one or both of their respective first and second surfaces.

[0133] Each surface of the first lens 301 to the ninth lens 309 has an aspheric coefficient as shown in Table 6 below. For example, both the object-side surface and the image-side surface of each of the first lens 301 to the ninth lens 309 are aspherical surfaces. Table 6 S1 S2 S3 S4 S5 S6 Conic constant (K) -5.501 -12.068 -4.280 99.000 20.143 4.564 Fourth coefficient (A) 1.906E-02 1.496E-02 -2.475E-03 4.505E-02 3.907E-02 7.771E-03 Sixth coefficient (B) -2.864E-02 -4.466E-02 6.414E-03 -2.771E-01 -2.780E-01 -1.496E-01 The eighth coefficient (C) 5.465E-02 9.758E-02 -2.996E-02 7.423E-01 8.251E-01 6.072E-01 The tenth coefficient (D) -8.236E-02 -1.679E-01 8.128E-02 -1.230E+00 -1.517E+00 -1.53​​3E+00 The twelfth coefficient (E) 8.741E-02 2.057E-01 -1.276E-01 1.376E+00 1.896E+00 2.607E+00 Fourteenth coefficient (F) -6.623E-02 -1.768E-01 1.328E-01 -1.083E+00 -1.677E+00 -3.103E+00 The sixteenth coefficient (G) 3.629E-02 1.081E-01 -9.589E-02 6.141E-01 1.073E+00 2.646E+00 The eighteenth coefficient (H) -1.449E-02 -4.756E-02 4.903E-02 -2.536E-01 -5.016E-01 -1.634E+00 The twentieth coefficient (J) 4.210E-03 1.511E-02 -1.786E-02 7.623E-02 1.713E-01 7.317E-01 The twenty-second coefficient (L) -8.798E-04 -3.437E-03 4.607E-03 -1.649E-02 -4.224E-02 -2.350E-01 The twenty-fourth coefficient (M) 1.287E-04 5.459E-04 -8.218E-04 2.499E-03 7.315E-03 5.271E-02 The 26th coefficient (N) -1.249E-05 -5.751E-05 9.646E-05 -2.513E-04 -8.436E-04 -7.837E-03 The twenty-eighth coefficient (O) 7.209E-07 3.609E-06 -6.702E-06 1.504E-05 5.814E-05 6.937E-04 The thirtieth coefficient (P) -1.873E-08 -1.021E-07 2.089E-07 -4.049E-07 -1.811E-06 -2.767E-05 S7 S8 S9 S10 S11 S12 Conic constant (K) -8.362 -62.396 -97.868 -92.451 -71.434 45.581 Fourth coefficient (A) 1.330E-03 -7.289E-03 -3.268E-02 -3.936E-02 -6.983E-02 -8.950E-02 Sixth coefficient (B) -2.716E-02 3.132E-02 1.025E-02 2.817E-02 4.519E-02 5.146E-02 The eighth coefficient (C) 8.906E-02 -1.234E-01 -3.631E-02 -5.088E-02 -1.749E-02 -3.947E-02 The tenth coefficient (D) -2.037E-01 2.973E-01 1.206E-01 8.903E-02 -1.964E-02 2.814E-02 The twelfth coefficient (E) 3.390E-01 -4.896E-01 -2.729E-01 -1.271E-01 5.213E-02 -1.207E-02 Fourteenth coefficient (F) -4.137E-01 5.775E-01 4.055E-01 1.325E-01 -6.261E-02 7.593E-04 The sixteenth coefficient (G) 3.709E-01 -4.995E-01 -4.108E-01 -9.891E-02 4.873E-02 2.111E-03 The eighteenth coefficient (H) -2.434E-01 3.199E-01 2.918E-01 5.314E-02 -2.636E-02 -1.277E-03 The twentieth coefficient (J) 1.160E-01 -1.514E-01 -1.472E-01 -2.058E-02 1.011E-02 3.966E-04 The twenty-second coefficient (L) -3.955E-02 5.222E-02 5.251E-02 5.690E-03 -2.745E-03 -7.735E-05 The twenty-fourth coefficient (M) 9.367E-03 -1.274E-02 -1.297E-02 -1.097E-03 5.149E-04 9.817E-06 The 26th coefficient (N) -1.462E-03 2.083E-03 2.112E-03 1.400E-04 -6.347E-05 -7.868E-07 The twenty-eighth coefficient (O) 1.350E-04 -2.045E-04 -2.040E-04 -1.065E-05 4.620E-06 3.590E-08 The thirtieth coefficient (P) -5.578E-06 9.110E-06 8.866E-06 3.660E-07 -1.503E-07 -6.990E-10 S13 S14 S15 S16 S17 S18 Conic constant (K) 2.796 1.969 -7.376 -12.771 26.625 -13.007 Fourth coefficient (A) 4.894E-02 -5.015E-03 1.137E-03 3.056E-02 -9.704E-02 -4.941E-02 Sixth coefficient (B) -4.557E-02 1.683E-02 1.089E-03 -1.896E-02 3.922E-02 1.841E-02 The eighth coefficient (C) 2.830E-02 -2.990E-02 -1.373E-02 4.072E-03 -1.270E-02 -5.607E-03 The tenth coefficient (D) -1.675E-02 2.956E-02 1.359E-02 6.619E-04 3.294E-03 1.333E-03 The twelfth coefficient (E) 1.426E-02 -1.810E-02 -7.649E-03 -8.621E-04 -6.277E-04 -2.444E-04 Fourteenth coefficient (F) -1.164E-02 7.279E-03 2.830E-03 3.344E-04 8.407E-05 3.419E-05 The sixteenth coefficient (G) 6.503E-03 -2.010E-03 -7.274E-04 -7.777E-05 -7.786E-06 -3.647E-06 The eighteenth coefficient (H) -2.412E-03 3.933E-04 1.330E-04 1.214E-05 4.900E-07 2.967E-07 The twentieth coefficient (J) 6.092E-04 -5.537E-05 -1.736E-05 -1.316E-06 -1.997E-08 -1.824E-08 The twenty-second coefficient (L) -1.061E-04 5.612E-06 1.601E-06 9.932E-08 4.494E-10 8.275E-10 The twenty-fourth coefficient (M) 1.265E-05 -4.019E-07 -1.014E-07 -5.119E-09 -1.039E-12 -2.667E-11 The 26th coefficient (N) -9.915E-07 1.941E-08 4.167E-09 1.715E-10 -2.331E-13 5.740E-13 The twenty-eighth coefficient (O) 4.628E-08 -5.703E-10 -9.955E-11 -3.355E-12 5.889E-15 -7.355E-15 The thirtieth coefficient (P) -9.788E-10 7.730E-12 1.041E-12 2.900E-14 -4.909E-17 4.228E-17

[0134] In addition, the optical imaging system 300 configured as described above may have the aberration characteristics shown in FIG6.

[0135] FIG7 is a structural diagram of an optical imaging system according to a fourth embodiment of the present disclosure, and FIG8 is a diagram showing the aberration characteristics of the optical imaging system shown in FIG7.

[0136] Referring to FIG7, the optical imaging system 400 according to the fourth embodiment of the present disclosure includes a first lens 401, a second lens 402, a third lens 403, a fourth lens 404, a fifth lens 405, a sixth lens 406, a seventh lens 407, an eighth lens 408 and a ninth lens 409, and may further include a filter 410 and an image sensor IS.

[0137] The optical imaging system 400 according to the fourth embodiment of this disclosure can form a focal point on an imaging surface 411. The imaging surface 411 may refer to the surface on which the optical imaging system forms a focal point. In an example, the imaging surface 411 may mean a surface on which an image sensor IS receives light.

[0138] The lens characteristics (radius of curvature, lens thickness, distance between lenses, refractive index, Abbe number, and focal length) of each lens are shown in Table 7 below. Table 7 Surface number element radius of curvature Thickness or distance Refractive index Abbe number focal length S1 First lens 3.110 0.360 1.544 55.99 33.6544 S2 3.590 0.118 S3 Second lens 3.402 0.935 1.544 55.99 6.5579 S4 60.804 0.030 S5 Third lens 15.900 0.210 1.639 23.49 -9.9158 S6 4.540 0.217 S7 Fourth lens 5.736 0.392 1.544 55.99 22.8715 S8 10.346 0.614 S9 Fifth lens 37.651 0.405 1.671 19.24 -36.8572 S10 14.967 0.371 S11 Sixth lens 18.518 0.480 1.544 55.99 999.9999 S12 18.992 0.210 S13 Seventh Lens -6.599 0.381 1.614 25.94 9724.1446 S14 -6.737 0.086 S15 Eighth lens 2.264 0.499 1.544 55.99 8.9029 S16 3.906 1.245 S17 Ninth Lens 33.093 0.400 1.535 55.74 -5.815 S18 2.842 0.306 S19 Filter infinity 0.210 1.517 64.20 S20 infinity 0.753 S21 Imaging surface infinity

[0139] The total focal length f of the optical imaging system 400 according to the fourth embodiment of this disclosure is 6.8354 mm, Fno is 1.59, IMG HT is 6 mm, FOV is 80.5°, SWA11 is 19.074°, SWA21 is 32.851°, and f12 is 5.719 mm.

[0140] In the fourth embodiment of this disclosure, the first lens 401 has a positive refractive power, the first surface of the first lens 401 is convex in the paraxial region, and the second surface of the first lens 401 is concave in the paraxial region.

[0141] The second lens 402 has positive refractive power. The first surface of the second lens 402 is convex in the paraxial region, while the second surface of the second lens 402 is concave in the paraxial region.

[0142] The third lens 403 has negative refractive power. The first surface of the third lens 403 is convex in the paraxial region, while the second surface of the third lens 403 is concave in the paraxial region.

[0143] The fourth lens 404 has positive refractive power. The first surface of the fourth lens 404 is convex in the paraxial region, while the second surface of the fourth lens 404 is concave in the paraxial region.

[0144] The fifth lens 405 has negative refractive power. The first surface of the fifth lens 405 is convex in the paraxial region, while the second surface of the fifth lens 405 is concave in the paraxial region.

[0145] The sixth lens 406 has positive refractive power. The first surface of the sixth lens 406 is convex in the paraxial region, while the second surface of the sixth lens 406 is concave in the paraxial region.

[0146] The seventh lens 407 has positive refractive power. The first surface of the seventh lens 407 is concave in the paraxial region, while the second surface of the seventh lens 407 is convex in the paraxial region.

[0147] The eighth lens 408 has positive refractive power. The first surface of the eighth lens 408 is convex in the paraxial region, while the second surface of the eighth lens 408 is concave in the paraxial region.

[0148] The ninth lens 409 has negative refractive power. The first surface of the ninth lens 409 is convex in the paraxial region, while the second surface of the ninth lens 409 is concave in the paraxial region.

[0149] In addition, one or more of the fifth lens 405 to the ninth lens 409 have at least one inflection point formed on one or both of their respective first and second surfaces.

[0150] Each surface of the first lens 401 to the ninth lens 409 has an aspherical coefficient as shown in Table 8 below. For example, both the object-side surface and the image-side surface of each of the first lens 401 to the ninth lens 409 are aspherical surfaces. Table 8 S1 S2 S3 S4 S5 S6 Conic constant (K) -5.507 -12.228 -4.316 99.000 20.303 4.566 Fourth coefficient (A) 1.577E-02 6.349E-03 -4.697E-03 4.584E-02 3.690E-02 5.456E-03 Sixth coefficient (B) -1.297E-02 -1.982E-03 1.872E-02 -2.738E-01 -2.502E-01 -1.314E-01 The eighth coefficient (C) 1.575E-02 -1.814E-02 -5.739E-02 7.276E-01 7.176E-01 5.251E-01 The tenth coefficient (D) -2.017E-02 3.469E-02 1.141E-01 -1.215E+00 -1.292E+00 -1.314E+00 The twelfth coefficient (E) 1.886E-02 -3.659E-02 -1.461E-01 1.385E+00 1.597E+00 2.227E+00 Fourteenth coefficient (F) -1.243E-02 2.734E-02 1.295E-01 -1.120E+00 -1.404E+00 -2.647E+00 The sixteenth coefficient (G) 5.709E-03 -1.558E-02 -8.171E-02 6.566E-01 8.965E-01 2.252E+00 The eighteenth coefficient (H) -1.803E-03 6.852E-03 3.718E-02 -2.818E-01 -4.190E-01 -1.387E+00 The twentieth coefficient (J) 3.799E-04 -2.286E-03 -1.221E-02 8.847E-02 1.431E-01 6.181E-01 The twenty-second coefficient (L) -4.915E-05 5.611E-04 2.864E-03 -2.008E-02 -3.529E-02 -1.974E-01 The twenty-fourth coefficient (M) 2.852E-06 -9.717E-05 -4.676E-04 3.206E-03 6.108E-03 4.397E-02 The 26th coefficient (N) 1.302E-07 1.117E-05 5.042E-05 -3.413E-04 -7.032E-04 -6.488E-03 The twenty-eighth coefficient (O) -3.015E-08 -7.615E-07 -3.226E-06 2.174E-05 4.832E-05 5.697E-04 The thirtieth coefficient (P) 1.352E-09 2.325E-08 9.272E-08 -6.263E-07 -1.498E-06 -2.253E-05 S7 S8 S9 S10 S11 S12 Conic constant (K) -7.741 -54.430 -93.831 -84.155 -99.000 17.415 Fourth coefficient (A) -2.530E-04 -8.295E-03 -3.246E-02 -4.144E-02 -7.024E-02 -9.570E-02 Sixth coefficient (B) -2.360E-02 3.521E-02 -1.547E-03 3.337E-02 3.498E-02 5.092E-02 The eighth coefficient (C) 7.032E-02 -1.465E-01 2.507E-02 -6.136E-02 2.754E-02 -2.338E-02 The tenth coefficient (D) -1.329E-01 3.813E-01 -5.897E-02 1.069E-01 -1.112E-01 1.350E-02 The twelfth coefficient (E) 1.788E-01 -6.730E-01 6.453E-02 -1.524E-01 1.677E-01 -1.817E-02 Fourteenth coefficient (F) -1.761E-01 8.404E-01 -2.896E-02 1.603E-01 -1.627E-01 2.162E-02 The sixteenth coefficient (G) 1.286E-01 -7.593E-01 -1.385E-02 -1.215E-01 1.107E-01 -1.670E-02 The eighteenth coefficient (H) -6.961E-02 5.012E-01 3.015E-02 6.643E-02 -5.428E-02 8.558E-03 The twentieth coefficient (J) 2.765E-02 -2.413E-01 -2.228E-02 -2.620E-02 1.928E-02 -2.998E-03 The twenty-second coefficient (L) -7.901E-03 8.375E-02 9.766E-03 7.385E-03 -4.913E-03 7.241E-04 The twenty-fourth coefficient (M) 1.571E-03 -2.037E-02 -2.749E-03 -1.450E-03 8.755E-04 -1.188E-04 The 26th coefficient (N) -2.049E-04 3.296E-03 4.906E-04 1.886E-04 -1.035E-04 1.264E-05 The twenty-eighth coefficient (O) 1.561E-05 -3.185E-04 -5.087E-05 -1.460E-05 7.286E-06 -7.881E-07 The thirtieth coefficient (P) -5.200E-07 1.390E-05 2.346E-06 5.093E-07 -2.310E-07 2.181E-08 S13 S14 S15 S16 S17 S18 Conic constant (K) 3.547 0.894 -6.898 -12.537 21.738 -13.889 Fourth coefficient (A) 3.844E-02 8.849E-03 5.497E-03 2.827E-02 -1.063E-01 -5.188E-02 Sixth coefficient (B) -4.192E-02 -5.737E-03 -6.243E-03 -1.395E-02 4.896E-02 2.166E-02 The eighth coefficient (C) 4.583E-02 -1.591E-03 -6.030E-03 -1.180E-03 -1.907E-02 -7.689E-03 The tenth coefficient (D) -4.504E-02 5.763E-03 8.156E-03 4.047E-03 5.873E-03 2.120E-03 The twelfth coefficient (E) 3.428E-02 -5.136E-03 -5.026E-03 -2.327E-03 -1.295E-03 -4.386E-04 Fourteenth coefficient (F) -1.954E-02 2.606E-03 1.951E-03 7.800E-04 1.999E-04 6.752E-05 The sixteenth coefficient (G) 8.237E-03 -8.730E-04 -5.205E-04 -1.753E-04 -2.173E-05 -7.771E-06 The eighteenth coefficient (H) -2.554E-03 2.056E-04 9.892E-05 2.768E-05 1.681E-06 6.699E-07 The twentieth coefficient (J) 5.792E-04 -3.487E-05 -1.352E-05 -3.115E-06 -9.275E-08 -4.294E-08 The twenty-second coefficient (L) -9.496E-05 4.253E-06 1.317E-06 2.488E-07 3.616E-09 2.008E-09 The twenty-fourth coefficient (M) 1.096E-05 -3.636E-07 -8.911E-08 -1.378E-08 -9.695E-11 -6.622E-11 The 26th coefficient (N) -8.440E-07 2.064E-08 3.969E-09 5.034E-10 1.691E-12 1.453E-12 The twenty-eighth coefficient (O) 3.895E-08 -6.963E-10 -1.045E-10 -1.089E-11 -1.714E-14 -1.897E-14 The thirtieth coefficient (P) -8.143E-10 1.054E-11 1.233E-12 1.057E-13 7.556E-17 1.113E-16

[0151] In addition, the optical imaging system 400 configured as described above may have the aberration characteristics shown in FIG8.

[0152] FIG9 is a structural diagram of an optical imaging system according to a fifth embodiment of the present disclosure, and FIG10 is a diagram showing the aberration characteristics of the optical imaging system shown in FIG9.

[0153] Referring to FIG9, the optical imaging system 500 according to the fifth embodiment of the present disclosure includes a first lens 501, a second lens 502, a third lens 503, a fourth lens 504, a fifth lens 505, a sixth lens 506, a seventh lens 507, an eighth lens 508 and a ninth lens 509, and may further include a filter 510 and an image sensor IS.

[0154] The optical imaging system 500 according to the fifth embodiment of this disclosure can form a focal point on an imaging surface 511. The imaging surface 511 may refer to the surface on which the optical imaging system forms a focal point. In an example, the imaging surface 511 may refer to a surface on which an image sensor IS receives light.

[0155] The lens characteristics (radius of curvature, lens thickness, distance between lenses, refractive index, Abbe number, and focal length) of each lens are shown in Table 9 below. Table 9 Surface number element radius of curvature Thickness or distance Refractive index Abbe number focal length S1 First lens 3.111 0.377 1.544 55.99 36.95 S2 3.520 0.108 S3 Second lens 3.339 0.955 1.544 55.99 6.24 S4 143.471 0.030 S5 Third lens 18.735 0.210 1.639 23.49 -9.34 S6 4.541 0.224 S7 Fourth lens 5.688 0.378 1.544 55.99 25.3 S8 9.438 0.548 S9 Fifth lens 18.995 0.389 1.671 19.24 300 S10 20.776 0.528 S11 Sixth lens 169.106 0.480 1.544 55.99 -51.59 S12 24.136 0.103 S13 Seventh Lens -6.061 0.421 1.614 25.94 -42.51 S14 -8.081 0.060 S15 Eighth lens 2.225 0.566 1.544 55.99 7.78 S16 4.252 1.171 S17 Ninth Lens 31.937 0.401 1.535 55.74 -5.94 S18 2.886 0.306 S19 Filter infinity 0.210 1.517 64.20 S20 infinity 0.779 S21 Imaging surface infinity

[0156] The total focal length f of the optical imaging system 500 according to the fifth embodiment of this disclosure is 6.84 mm, Fno is 1.59 mm, IMG HT is 6 mm, FOV is 80.5°, SWA11 is 19.09°, SWA21 is 33.324°, and f12 is 5.580 mm.

[0157] In the fifth embodiment of this disclosure, the first lens 501 has a positive refractive power, the first surface of the first lens 501 is convex in the paraxial region, and the second surface of the first lens 501 is concave in the paraxial region.

[0158] The second lens 502 has positive refractive power. The first surface of the second lens 502 is convex in the paraxial region, while the second surface of the second lens 502 is concave in the paraxial region.

[0159] The third lens 503 has negative refractive power. The first surface of the third lens 503 is convex in the paraxial region, while the second surface of the third lens 503 is concave in the paraxial region.

[0160] The fourth lens 504 has positive refractive power. The first surface of the fourth lens 504 is convex in the paraxial region, while the second surface of the fourth lens 504 is concave in the paraxial region.

[0161] The fifth lens 505 has positive refractive power. The first surface of the fifth lens 505 is convex in the paraxial region, while the second surface of the fifth lens 505 is concave in the paraxial region.

[0162] The sixth lens 506 has a negative refractive power. The first surface of the sixth lens 506 is convex in the paraxial region, while the second surface of the sixth lens 506 is concave in the paraxial region.

[0163] The seventh lens 507 has negative refractive power. The first surface of the seventh lens 507 is concave in the paraxial region, while the second surface of the seventh lens 507 is convex in the paraxial region.

[0164] The eighth lens 508 has positive refractive power. The first surface of the eighth lens 508 is convex in the paraxial region, while the second surface of the eighth lens 508 is concave in the paraxial region.

[0165] The ninth lens 509 has negative refractive power. The first surface of the ninth lens 509 is convex in the paraxial region, while the second surface of the ninth lens 509 is concave in the paraxial region.

[0166] In addition, one or more of the fifth lens 505 to the ninth lens 509 have at least one inflection point formed on one or both of their respective first and second surfaces.

[0167] Each surface of the first lens 501 to the ninth lens 509 has an aspheric coefficient as shown in Table 10 below. For example, both the object-side surface and the image-side surface of each of the first lens 501 to the ninth lens 509 are aspherical surfaces. Table 10 S1 S2 S3 S4 S5 S6 Conic constant (K) -5.485 -12.131 -4.262 99.000 18.032 4.563 Fourth coefficient (A) 1.676E-02 1.410E-02 -2.990E-03 4.283E-02 3.883E-02 6.741E-03 Sixth coefficient (B) -1.518E-02 -3.946E-02 1.230E-02 -2.564E-01 -2.596E-01 -1.259E-01 The eighth coefficient (C) 1.492E-02 7.996E-02 -5.401E-02 6.621E-01 7.400E-01 5.075E-01 The tenth coefficient (D) -1.231E-02 -1.321E-01 1.367E-01 -1.069E+00 -1.342E+00 -1.322E+00 The twelfth coefficient (E) 6.931E-03 1.600E-01 -2.074E-01 1.178E+00 1.684E+00 2.342E+00 Fourteenth coefficient (F) -2.636E-03 -1.382E-01 2.097E-01 -9.208E-01 -1.514E+00 -2.902E+00 The sixteenth coefficient (G) 5.880E-04 8.536E-02 -1.477E-01 5.217E-01 9.909E-01 2.563E+00 The eighteenth coefficient (H) -5.600E-06 -3.799E-02 7.394E-02 -2.163E-01 -4.759E-01 -1.632E+00 The twentieth coefficient (J) -4.864E-05 1.220E-02 -2.650E-02 6.557E-02 1.673E-01 7.495E-01 The twenty-second coefficient (L) 1.902E-05 -2.800E-03 6.744E-03 -1.436E-02 -4.252E-02 -2.459E-01 The twenty-fourth coefficient (M) -3.994E-06 4.480E-04 -1.190E-03 2.209E-03 7.594E-03 5.616E-02 The 26th coefficient (N) 5.088E-07 -4.747E-05 1.385E-04 -2.262E-04 -9.031E-04 -8.478E-03 The twenty-eighth coefficient (O) -3.717E-08 2.993E-06 -9.548E-06 1.383E-05 6.416E-05 7.602E-04 The thirtieth coefficient (P) 1.202E-09 -8.500E-08 2.956E-07 -3.816E-07 -2.058E-06 -3.065E-05 S7 S8 S9 S10 S11 S12 Conic constant (K) -8.494 -66.585 -64.824 -58.979 73.942 6.485 Fourth coefficient (A) 3.012E-03 -6.971E-03 -3.695E-02 -3.093E-02 -5.359E-02 -8.818E-02 Sixth coefficient (B) -4.356E-02 3.073E-02 5.317E-02 1.222E-02 1.794E-02 2.373E-02 The eighth coefficient (C) 1.590E-01 -1.320E-01 -2.122E-01 -2.338E-02 2.630E-02 -7.231E-03 The tenth coefficient (D) -3.947E-01 3.337E-01 5.580E-01 3.842E-02 -7.630E-02 2.565E-02 The twelfth coefficient (E) 6.926E-01 -5.621E-01 -1.001E+00 -5.195E-02 1.064E-01 -3.891E-02 Fourteenth coefficient (F) -8.685E-01 6.660E-01 1.256E+00 5.212E-02 -1.013E-01 3.098E-02 The sixteenth coefficient (G) 7.851E-01 -5.712E-01 -1.125E+00 -3.791E-02 6.958E-02 -1.585E-02 The eighteenth coefficient (H) -5.135E-01 3.597E-01 7.296E-01 2.009E-02 -3.481E-02 5.656E-03 The twentieth coefficient (J) 2.423E-01 -1.666E-01 -3.429E-01 -7.787E-03 1.265E-02 -1.456E-03 The twenty-second coefficient (L) -8.152E-02 5.614E-02 1.157E-01 2.191E-03 -3.292E-03 2.710E-04 The twenty-fourth coefficient (M) 1.904E-02 -1.339E-02 -2.733E-02 -4.368E-04 5.967E-04 -3.571E-05 The 26th coefficient (N) -2.929E-03 2.145E-03 4.288E-03 5.864E-05 -7.142E-05 3.168E-06 The twenty-eighth coefficient (O) 2.669E-04 -2.068E-04 -4.015E-04 -4.762E-06 5.067E-06 -1.697E-07 The thirtieth coefficient (P) -1.090E-05 9.077E-06 1.698E-05 1.769E-07 -1.612E-07 4.146E-09 S13 S14 S15 S16 S17 S18 Conic constant (K) 3.086 1.794 -7.620 -13.751 24.857 -13.913 Fourth coefficient (A) 5.434E-02 7.348E-03 1.745E-03 2.491E-02 -1.019E-01 -5.109E-02 Sixth coefficient (B) -7.687E-02 3.468E-03 2.252E-04 -7.978E-03 4.646E-02 2.147E-02 The eighth coefficient (C) 7.030E-02 -1.990E-02 -1.318E-02 -6.227E-03 -1.707E-02 -7.559E-03 The tenth coefficient (D) -3.905E-02 2.487E-02 1.230E-02 6.174E-03 4.713E-03 2.034E-03 The twelfth coefficient (E) 1.251E-02 -1.729E-02 -6.388E-03 -2.751E-03 -9.038E-04 -4.116E-04 Fourteenth coefficient (F) -2.221E-03 7.704E-03 2.189E-03 7.763E-04 1.175E-04 6.258E-05 The sixteenth coefficient (G) 2.975E-04 -2.350E-03 -5.253E-04 -1.507E-04 -1.022E-05 -7.166E-06 The eighteenth coefficient (H) -1.263E-04 5.081E-04 9.023E-05 2.073E-05 5.704E-07 6.167E-07 The twentieth coefficient (J) 5.961E-05 -7.901E-05 -1.108E-05 -2.033E-06 -1.732E-08 -3.948E-08 The twenty-second coefficient (L) -1.629E-05 8.801E-06 9.533E-07 1.406E-07 8.131E-12 1.842E-09 The twenty-fourth coefficient (M) 2.685E-06 -6.863E-07 -5.496E-08 -6.662E-09 2.230E-11 -6.054E-11 The 26th coefficient (N) -2.709E-07 3.560E-08 1.959E-09 2.040E-10 -9.062E-13 1.322E-12 The twenty-eighth coefficient (O) 1.558E-08 -1.103E-09 -3.656E-11 -3.591E-12 1.646E-14 -1.716E-14 The thirtieth coefficient (P) -3.942E-10 1.547E-11 2.243E-13 2.705E-14 -1.203E-16 9.996E-17

[0168] In addition, the optical imaging system 500 configured as described above may have the aberration characteristics shown in FIG10.

[0169] FIG11 is a structural diagram of an optical imaging system according to a sixth embodiment of the present disclosure, and FIG12 is a diagram showing the aberration characteristics of the optical imaging system shown in FIG11.

[0170] Referring to FIG11, the optical imaging system 600 according to the sixth embodiment of the present disclosure includes a first lens 601, a second lens 602, a third lens 603, a fourth lens 604, a fifth lens 605, a sixth lens 606, a seventh lens 607, an eighth lens 608 and a ninth lens 609, and may further include a filter 610 and an image sensor IS.

[0171] The optical imaging system 600 according to the sixth embodiment of this disclosure can form a focal point on an imaging surface 611. The imaging surface 611 may refer to the surface on which the optical imaging system forms a focal point. In an example, the imaging surface 611 may refer to a surface on which an image sensor IS receives light.

[0172] The lens characteristics (radius of curvature, lens thickness, distance between lenses, refractive index, Abbe number, and focal length) of each lens are shown in Table 11 below. Table 11 Surface number element radius of curvature Thickness or distance Refractive index Abbe number focal length S1 First lens 3.112 0.376 1.544 55.99 42.53 S2 3.440 0.111 S3 Second lens 3.267 0.959 1.544 55.99 6.08 S4 173.268 0.030 S5 Third lens 19.173 0.210 1.639 23.49 -9.27 S6 4.540 0.233 S7 Fourth lens 5.977 0.377 1.544 55.99 25.49 S8 10.239 0.541 S9 Fifth lens 15.166 0.365 1.671 19.24 500 S10 15.720 0.566 S11 Sixth lens 191.196 0.480 1.544 55.99 -37.86 S12 18.648 0.114 S13 Seventh Lens -6.614 0.384 1.614 25.94 500 S14 -6.620 0.060 S15 Eighth lens 2.438 0.596 1.544 55.99 9.05 S16 4.394 1.150 S17 Ninth Lens 31.435 0.400 1.535 55.74 -6.01 S18 2.915 0.306 S19 Filter infinity 0.210 1.517 64.20 S20 infinity 0.780 S21 Imaging surface infinity

[0173] The total focal length f of the optical imaging system 600 according to the sixth embodiment of this disclosure is 6.84 mm, Fno is 1.59 mm, IMG HT is 6 mm, FOV is 80.5°, SWA11 is 19.159°, SWA21 is 33.721°, and f12 is 5.563 mm.

[0174] In the sixth embodiment of this disclosure, the first lens 601 has positive refractive power, the first surface of the first lens 601 is convex in the paraxial region, and the second surface of the first lens 601 is concave in the paraxial region.

[0175] The second lens 602 has positive refractive power. The first surface of the second lens 602 is convex in the paraxial region, while the second surface of the second lens 602 is concave in the paraxial region.

[0176] The third lens 603 has negative refractive power. The first surface of the third lens 603 is convex in the paraxial region, while the second surface of the third lens 603 is concave in the paraxial region.

[0177] The fourth lens 604 has positive refractive power. The first surface of the fourth lens 604 is convex in the paraxial region, while the second surface of the fourth lens 604 is concave in the paraxial region.

[0178] The fifth lens 605 has positive refractive power. The first surface of the fifth lens 605 is convex in the paraxial region, while the second surface of the fifth lens 605 is concave in the paraxial region.

[0179] The sixth lens 606 has a negative refractive power. The first surface of the sixth lens 606 is convex in the paraxial region, while the second surface of the sixth lens 606 is concave in the paraxial region.

[0180] The seventh lens 607 has positive refractive power. The first surface of the seventh lens 607 is concave in the paraxial region, while the second surface of the seventh lens 607 is convex in the paraxial region.

[0181] The eighth lens 608 has positive refractive power. The first surface of the eighth lens 608 is convex in the paraxial region, while the second surface of the eighth lens 608 is concave in the paraxial region.

[0182] The ninth lens 609 has a negative refractive power. The first surface of the ninth lens 609 is convex in the paraxial region, while the second surface of the ninth lens 609 is concave in the paraxial region.

[0183] In addition, one or more of the fifth lens 605 to the ninth lens 609 have at least one inflection point formed on one or both of their respective first and second surfaces.

[0184] Each surface of the first lens 601 to the ninth lens 609 has an aspheric coefficient as shown in Table 12 below. For example, both the object-side surface and the image-side surface of each of the first lens 601 to the ninth lens 609 are aspherical surfaces. Table 12 S1 S2 S3 S4 S5 S6 Conic constant (K) -5.442 -11.931 -4.304 99.000 16.651 4.560 Fourth coefficient (A) 1.820E-02 1.498E-02 -2.116E-03 3.937E-02 3.221E-02 7.066E-03 Sixth coefficient (B) -2.543E-02 -4.837E-02 9.091E-04 -2.634E-01 -2.465E-01 -1.248E-01 The eighth coefficient (C) 4.573E-02 1.147E-01 -1.424E-02 7.256E-01 7.516E-01 5.198E-01 The tenth coefficient (D) -6.633E-02 -2.018E-01 6.228E-02 -1.225E+00 -1.421E+00 -1.379E+00 The twelfth coefficient (E) 6.890E-02 2.474E-01 -1.186E-01 1.396E+00 1.831E+00 2.459E+00 Fourteenth coefficient (F) -5.181E-02 -2.126E-01 1.366E-01 -1.123E+00 -1.675E+00 -3.049E+00 The sixteenth coefficient (G) 2.841E-02 1.301E-01 -1.048E-01 6.533E-01 1.110E+00 2.691E+00 The eighteenth coefficient (H) -1.140E-02 -5.739E-02 5.570E-02 -2.779E-01 -5.384E-01 -1.711E+00 The twentieth coefficient (J) 3.338E-03 1.828E-02 -2.085E-02 8.649E-02 1.909E-01 7.856E-01 The twenty-second coefficient (L) -7.040E-04 -4.165E-03 5.486E-03 -1.946E-02 -4.887E-02 -2.577E-01 The twenty-fourth coefficient (M) 1.040E-04 6.619E-04 -9.939E-04 3.079E-03 8.789E-03 5.890E-02 The 26th coefficient (N) -1.021E-05 -6.969E-05 1.181E-04 -3.249E-04 -1.052E-03 -8.902E-03 The twenty-eighth coefficient (O) 5.967E-07 4.367E-06 -8.287E-06 2.051E-05 7.529E-05 7.997E-04 The thirtieth coefficient (P) -1.571E-08 -1.233E-07 2.604E-07 -5.856E-07 -2.433E-06 -3.232E-05 S7 S8 S9 S10 S11 S12 Conic constant (K) -7.898 -71.048 -63.064 -54.551 -99.000 -34.202 Fourth coefficient (A) 7.565E-04 -8.403E-03 -3.166E-02 -2.984E-02 -4.907E-02 -1.044E-01 Sixth coefficient (B) -2.285E-02 3.125E-02 1.984E-02 1.303E-02 1.858E-02 9.013E-02 The eighth coefficient (C) 8.194E-02 -1.206E-01 -8.960E-02 -3.858E-02 1.585E-02 -1.418E-01 The tenth coefficient (D) -2.150E-01 2.890E-01 2.597E-01 8.473E-02 -6.012E-02 1.884E-01 The twelfth coefficient (E) 4.062E-01 -4.733E-01 -4.997E-01 -1.307E-01 9.257E-02 -1.683E-01 Fourteenth coefficient (F) -5.452E-01 5.562E-01 6.574E-01 1.399E-01 -9.394E-02 1.024E-01 The sixteenth coefficient (G) 5.218E-01 -4.805E-01 -6.089E-01 -1.059E-01 6.715E-02 -4.419E-02 The eighteenth coefficient (H) -3.575E-01 3.081E-01 4.044E-01 5.761E-02 -3.443E-02 1.391E-02 The twentieth coefficient (J) 1.754E-01 -1.463E-01 -1.936E-01 -2.263E-02 1.270E-02 -3.233E-03 The twenty-second coefficient (L) -6.094E-02 5.066E-02 6.635E-02 6.377E-03 -3.334E-03 5.526E-04 The twenty-fourth coefficient (M) 1.464E-02 -1.242E-02 -1.588E-02 -1.258E-03 6.078E-04 -6.783E-05 The 26th coefficient (N) -2.309E-03 2.041E-03 2.522E-03 1.650E-04 -7.300E-05 5.673E-06 The twenty-eighth coefficient (O) 2.152E-04 -2.013E-04 -2.390E-04 -1.296E-05 5.190E-06 -2.899E-07 The thirtieth coefficient (P) -8.969E-06 9.008E-06 1.023E-05 4.611E-07 -1.654E-07 6.825E-09 S13 S14 S15 S16 S17 S18 Conic constant (K) 3.849 0.085 -7.555 -13.629 22.671 -13.604 Fourth coefficient (A) 2.154E-02 2.173E-02 1.277E-02 2.602E-02 -9.998E-02 -5.186E-02 Sixth coefficient (B) 1.959E-02 -5.379E-03 -1.802E-02 -6.449E-03 4.767E-02 2.295E-02 The eighth coefficient (C) -1.038E-01 -2.612E-02 1.323E-03 -9.964E-03 -1.917E-02 -8.782E-03 The tenth coefficient (D) 1.609E-01 4.030E-02 4.553E-03 9.183E-03 5.836E-03 2.530E-03 The twelfth coefficient (E) -1.414E-01 -3.008E-02 -3.403E-03 -4.139E-03 -1.228E-03 -5.329E-04 Fourteenth coefficient (F) 8.068E-02 1.390E-02 1.344E-03 1.200E-03 1.763E-04 8.227E-05 The sixteenth coefficient (G) -3.191E-02 -4.326E-03 -3.523E-04 -2.413E-04 -1.743E-05 -9.391E-06 The eighteenth coefficient (H) 9.058E-03 9.450E-04 6.558E-05 3.465E-05 1.189E-06 7.960E-07 The twentieth coefficient (J) -1.871E-03 -1.473E-04 -8.809E-06 -3.581E-06 -5.522E-08 -4.982E-08 The twenty-second coefficient (L) 2.803E-04 1.634E-05 8.421E-07 2.641E-07 1.662E-09 2.265E-09 The twenty-fourth coefficient (M) -2.975E-05 -1.264E-06 -5.530E-08 -1.355E-08 -2.809E-11 -7.247E-11 The 26th coefficient (N) 2.122E-06 6.485E-08 2.343E-09 4.585E-10 1.162E-13 1.542E-12 The twenty-eighth coefficient (O) -9.121E-08 -1.985E-09 -5.693E-11 -9.194E-12 4.016E-15 -1.953E-14 The thirtieth coefficient (P) 1.783E-09 2.747E-11 5.925E-13 8.262E-14 -5.139E-17 1.112E-16

[0185] In addition, the optical imaging system 600 configured as described above may have the aberration characteristics shown in FIG12.

[0186] FIG13 is a structural diagram of an optical imaging system according to the seventh embodiment of the present disclosure, and FIG14 is a diagram showing the aberration characteristics of the optical imaging system shown in FIG13.

[0187] Referring to FIG13, the optical imaging system 700 according to the seventh embodiment of the present disclosure includes a first lens 701, a second lens 702, a third lens 703, a fourth lens 704, a fifth lens 705, a sixth lens 706, a seventh lens 707, an eighth lens 708 and a ninth lens 709, and may further include a filter 710 and an image sensor IS.

[0188] The optical imaging system 700 according to the seventh embodiment of this disclosure can form a focal point on an imaging surface 711. The imaging surface 711 may refer to the surface on which the optical imaging system forms a focal point. In an example, the imaging surface 711 may refer to a surface on which an image sensor IS receives light.

[0189] The lens characteristics (radius of curvature, lens thickness, distance between lenses, refractive index, Abbe number, and focal length) of each lens are shown in Table 13 below. Table 13 Surface number element radius of curvature Thickness or distance Refractive index Abbe number focal length S1 First lens 3.141 0.387 1.544 55.99 48.7246 S2 3.407 0.044 S3 Second lens 3.239 0.937 1.544 55.99 6.0724 S4 122.813 0.034 S5 Third lens 17.242 0.210 1.639 23.49 -9.6388 S6 4.550 0.276 S7 Fourth lens 6.612 0.325 1.544 55.99 -500.0002 S8 6.344 0.383 S9 Fifth lens 5.373 0.377 1.671 19.24 32.8604 S10 6.878 0.664 S11 Sixth lens 21.882 0.480 1.544 55.99 -906.6618 S12 20.793 0.169 S13 Seventh Lens -6.530 0.380 1.614 25.94 -40.0063 S14 -9.060 0.082 S15 Eighth lens 2.116 0.474 1.544 55.99 7.957 S16 3.796 1.329 S17 Ninth Lens 29.925 0.400 1.535 55.74 -6.2637 S18 3.010 0.304 S19 Filter infinity 0.210 1.517 64.20 S20 infinity 0.755 S21 Imaging surface infinity

[0190] The total focal length f of the optical imaging system 700 according to the seventh embodiment of this disclosure is 6.8372 mm, Fno is 1.59 mm, IMG HT is 6 mm, FOV is 80.5°, SWA11 is 19.23°, SWA21 is 33.346°, and f12 is 5.644 mm.

[0191] In the seventh embodiment of this disclosure, the first lens 701 has a positive refractive power, the first surface of the first lens 701 is convex in the paraxial region, and the second surface of the first lens 701 is concave in the paraxial region.

[0192] The second lens 702 has positive refractive power. The first surface of the second lens 702 is convex in the paraxial region, while the second surface of the second lens 702 is concave in the paraxial region.

[0193] The third lens 703 has negative refractive power. The first surface of the third lens 703 is convex in the paraxial region, while the second surface of the third lens 703 is concave in the paraxial region.

[0194] The fourth lens 704 has a negative refractive power. The first surface of the fourth lens 704 is convex in the paraxial region, while the second surface of the fourth lens 704 is concave in the paraxial region.

[0195] The fifth lens 705 has positive refractive power. The first surface of the fifth lens 705 is convex in the paraxial region, while the second surface of the fifth lens 705 is concave in the paraxial region.

[0196] The sixth lens 706 has a negative refractive power. The first surface of the sixth lens 706 is convex in the paraxial region, while the second surface of the sixth lens 706 is concave in the paraxial region.

[0197] The seventh lens 707 has negative refractive power. The first surface of the seventh lens 707 is concave in the paraxial region, while the second surface of the seventh lens 707 is convex in the paraxial region.

[0198] The eighth lens 708 has positive refractive power. The first surface of the eighth lens 708 is convex in the paraxial region, while the second surface of the eighth lens 708 is concave in the paraxial region.

[0199] The ninth lens 709 has negative refractive power. The first surface of the ninth lens 709 is convex in the paraxial region, while the second surface of the ninth lens 709 is concave in the paraxial region.

[0200] In addition, one or more of the fifth lens 705 to the ninth lens 709 have at least one inflection point formed on one or both of their respective first and second surfaces.

[0201] Each surface of the first lens 701 to the ninth lens 709 has an aspheric coefficient as shown in Table 14 below. For example, both the object-side surface and the image-side surface of each of the first lens 701 to the ninth lens 709 are aspherical surfaces. Table 14 S1 S2 S3 S4 S5 S6 Conic constant (K) -5.366 -12.196 -4.390 99.000 1.804 4.573 Fourth coefficient (A) -1.819E-04 1.050E-02 -3.245E-03 -1.443E-02 1.784E-02 7.552E-03 Sixth coefficient (B) 8.080E-02 9.726E-02 1.075E-01 6.712E-02 -1.092E-01 -7.979E-02 The eighth coefficient (C) -2.581E-01 -5.026E-01 -4.869E-01 -2.559E-01 2.730E-01 2.890E-01 The tenth coefficient (D) 4.594E-01 1.059E+00 1.028E+00 5.415E-01 -4.858E-01 -7.459E-01 The twelfth coefficient (E) -5.310E-01 -1.325E+00 -1.308E+00 -7.139E-01 6.499E-01 1.360E+00 Fourteenth coefficient (F) 4.224E-01 1.104E+00 1.115E+00 6.345E-01 -6.486E-01 -1.764E+00 The sixteenth coefficient (G) -2.389E-01 -6.440E-01 -6.694E-01 -3.968E-01 4.779E-01 1.643E+00 The eighteenth coefficient (H) 9.762E-02 2.698E-01 2.899E-01 1.784E-01 -2.582E-01 -1.103E+00 The twentieth coefficient (J) -2.891E-02 -8.168E-02 -9.113E-02 -5.803E-02 1.013E-01 5.327E-01 The twenty-second coefficient (L) 6.151E-03 1.774E-02 2.063E-02 1.355E-02 -2.845E-02 -1.832E-01 The twenty-fourth coefficient (M) -9.161E-04 -2.696E-03 -3.280E-03 -2.216E-03 5.559E-03 4.370E-02 The 26th coefficient (N) 9.068E-05 2.724E-04 3.478E-04 2.413E-04 -7.167E-04 -6.871E-03 The twenty-eighth coefficient (O) -5.359E-06 -1.644E-05 -2.209E-05 -1.573E-05 5.476E-05 6.403E-04 The thirtieth coefficient (P) 1.431E-07 4.486E-07 6.361E-07 4.646E-07 -1.876E-06 -2.678E-05 S7 S8 S9 S10 S11 S12 Conic constant (K) -12.468 -85.019 -38.391 -38.770 -40.686 42.685 Fourth coefficient (A) -4.229E-03 -1.922E-02 -5.467E-02 -3.299E-02 -6.148E-02 -9.298E-02 Sixth coefficient (B) -6.410E-02 9.252E-02 1.771E-01 2.161E-02 5.915E-02 5.608E-02 The eighth coefficient (C) 3.089E-01 -3.736E-01 -6.273E-01 -3.238E-02 -9.317E-02 -5.770E-02 The tenth coefficient (D) -7.754E-01 9.755E-01 1.454E+00 1.890E-02 1.296E-01 4.912E-02 The twelfth coefficient (E) 1.283E+00 -1.696E+00 -2.324E+00 2.377E-02 -1.328E-01 -2.072E-02 Fourteenth coefficient (F) -1.492E+00 2.044E+00 2.642E+00 -6.449E-02 9.732E-02 -2.091E-03 The sixteenth coefficient (G) 1.251E+00 -1.757E+00 -2.177E+00 7.066E-02 -5.078E-02 7.625E-03 The eighteenth coefficient (H) -7.624E-01 1.094E+00 1.313E+00 -4.753E-02 1.870E-02 -4.622E-03 The twentieth coefficient (J) 3.370E-01 -4.945E-01 -5.791E-01 2.141E-02 -4.744E-03 1.606E-03 The twenty-second coefficient (L) -1.067E-01 1.608E-01 1.846E-01 -6.598E-03 7.853E-04 -3.651E-04 The twenty-fourth coefficient (M) 2.359E-02 -3.661E-02 -4.137E-02 1.376E-03 -7.384E-05 5.553E-05 The 26th coefficient (N) -3.449E-03 5.544E-03 6.182E-03 -1.858E-04 1.953E-06 -5.467E-06 The twenty-eighth coefficient (O) 2.998E-04 -5.013E-04 -5.530E-04 1.464E-05 2.713E-07 3.158E-07 The thirtieth coefficient (P) -1.172E-05 2.048E-05 2.239E-05 -5.105E-07 -1.956E-08 -8.131E-09 S13 S14 S15 S16 S17 S18 Conic constant (K) 2.674 0.950 -6.391 -11.387 30.305 -12.571 Fourth coefficient (A) 3.542E-02 6.138E-03 8.764E-03 3.226E-02 -9.175E-02 -4.872E-02 Sixth coefficient (B) -1.53​​7E-02 9.742E-04 -8.107E-03 -1.624E-02 3.659E-02 1.834E-02 The eighth coefficient (C) -3.588E-02 -1.798E-02 -4.227E-03 -5.635E-04 -1.243E-02 -5.870E-03 The tenth coefficient (D) 6.830E-02 2.791E-02 7.247E-03 4.213E-03 3.419E-03 1.456E-03 The twelfth coefficient (E) -5.668E-02 -2.190E-02 -4.697E-03 -2.549E-03 -6.760E-04 -2.688E-04 Fourteenth coefficient (F) 2.808E-02 1.053E-02 1.827E-03 8.707E-04 9.228E-05 3.660E-05 The sixteenth coefficient (G) -9.131E-03 -3.372E-03 -4.747E-04 -1.961E-04 -8.674E-06 -3.701E-06 The eighteenth coefficient (H) 2.037E-03 7.523E-04 8.597E-05 3.059E-05 5.605E-07 2.798E-07 The twentieth coefficient (J) -3.186E-04 -1.191E-04 -1.101E-05 -3.361E-06 -2.447E-08 -1.579E-08 The twenty-second coefficient (L) 3.536E-05 1.336E-05 9.925E-07 2.593E-07 6.833E-10 6.556E-10 The twenty-fourth coefficient (M) -2.807E-06 -1.040E-06 -6.143E-08 -1.372E-08 -1.035E-11 -1.938E-11 The 26th coefficient (N) 1.592E-07 5.354E-08 2.480E-09 4.741E-10 2.250E-14 3.849E-13 The twenty-eighth coefficient (O) -6.089E-09 -1.639E-09 -5.864E-11 -9.609E-12 1.693E-15 -4.586E-15 The thirtieth coefficient (P) 1.202E-10 2.261E-11 6.148E-13 8.651E-14 -1.845E-17 2.470E-17

[0202] In addition, the optical imaging system 700 configured as described above may have the aberration characteristics shown in FIG14.

[0203] FIG15 is a structural diagram of an optical imaging system according to the eighth embodiment of the present disclosure, and FIG16 is a diagram showing the aberration characteristics of the optical imaging system shown in FIG15.

[0204] Referring to FIG15, the optical imaging system 800 according to the eighth embodiment of the present disclosure includes a first lens 801, a second lens 802, a third lens 803, a fourth lens 804, a fifth lens 805, a sixth lens 806, a seventh lens 807, an eighth lens 808 and a ninth lens 809, and may further include a filter 810 and an image sensor IS.

[0205] The optical imaging system 800 according to the eighth embodiment of this disclosure can form a focal point on an imaging surface 811. The imaging surface 811 may refer to the surface on which the optical imaging system forms a focal point. In an example, the imaging surface 811 may refer to a surface on which an image sensor IS receives light.

[0206] The lens characteristics (radius of curvature, lens thickness, distance between lenses, refractive index, Abbe number, and focal length) of each lens are shown in Table 15 below. Table 15 Surface number element radius of curvature Thickness or distance Refractive index Abbe number focal length S1 First lens 8.772 0.360 1.544 55.99 134.0397 S2 9.822 0.035 S3 Second lens 2.859 1.087 1.544 55.99 6.5404 S4 12.385 0.250 S5 Third lens 23.731 0.411 1.671 19.24 -13.4041 S6 6.532 0.207 S7 Fourth lens 6.667 0.346 1.544 55.99 20.8252 S8 15.810 0.446 S9 Fifth lens 59.414 0.301 1.671 19.24 -25.5204 S10 13.386 0.316 S11 Sixth lens 6.037 0.341 1.635 23.96 312.2525 S12 6.088 0.507 S13 Seventh Lens 8.283 0.667 1.567 37.40 6.1804 S14 -5.964 0.210 S15 Eighth lens -7.236 0.374 1.544 55.99 -56.9705 S16 -9.599 0.674 S17 Ninth Lens 49.042 0.386 1.535 55.74 -4.5696 S18 2.331 0.700 S19 Filter infinity 0.210 1.517 64.20 S20 infinity 0.392 S21 Imaging surface infinity

[0207] The total focal length f of the optical imaging system 800 according to the eighth embodiment of this disclosure is 6.8321 mm, Fno is 1.59 mm, IMG HT is 6 mm, FOV is 80.5°, SWA11 is 17.312°, SWA21 is 35.581°, and f12 is 6.343 mm.

[0208] In the eighth embodiment of this disclosure, the first lens 801 has positive refractive power, the first surface of the first lens 801 is convex in the paraxial region, and the second surface of the first lens 801 is concave in the paraxial region.

[0209] The second lens 802 has positive refractive power. The first surface of the second lens 802 is convex in the paraxial region, while the second surface of the second lens 802 is concave in the paraxial region.

[0210] The third lens 803 has negative refractive power. The first surface of the third lens 803 is convex in the paraxial region, while the second surface of the third lens 803 is concave in the paraxial region.

[0211] The fourth lens 804 has positive refractive power. The first surface of the fourth lens 804 is convex in the paraxial region, while the second surface of the fourth lens 804 is concave in the paraxial region.

[0212] The fifth lens 805 has negative refractive power. The first surface of the fifth lens 805 is convex in the paraxial region, while the second surface of the fifth lens 805 is concave in the paraxial region.

[0213] The sixth lens 806 has positive refractive power. The first surface of the sixth lens 806 is convex in the paraxial region, while the second surface of the sixth lens 806 is concave in the paraxial region.

[0214] The seventh lens 807 has positive refractive power, and the first and second surfaces of the seventh lens 807 are convex in the paraxial region.

[0215] The eighth lens 808 has negative refractive power. The first surface of the eighth lens 808 is concave in the paraxial region, while the second surface of the eighth lens 808 is convex in the paraxial region.

[0216] The ninth lens 809 has negative refractive power. The first surface of the ninth lens 809 is convex in the paraxial region, while the second surface of the ninth lens 809 is concave in the paraxial region.

[0217] In addition, one or more of the fifth lens 805 to the ninth lens 809 have at least one inflection point formed on one or both of their respective first and second surfaces.

[0218] Each surface of the first lens 801 to the ninth lens 809 has an aspheric coefficient as shown in Table 16 below. For example, both the object-side surface and the image-side surface of each of the first lens 801 to the ninth lens 809 are aspherical surfaces. Table 16 S1 S2 S3 S4 S5 S6 Conic constant (K) 7.331 13.780 -1.524 -85.514 36.881 12.237 Fourth coefficient (A) -2.684E-03 -9.462E-03 -8.605E-03 -9.076E-03 -8.603E-03 -7.954E-03 Sixth coefficient (B) -2.662E-03 1.119E-03 5.403E-02 1.137E-02 1.159E-03 4.750E-03 The eighth coefficient (C) -3.088E-03 -1.070E-03 -1.610E-01 -4.333E-02 5.989E-03 1.483E-02 The tenth coefficient (D) 1.502E-02 1.321E-02 3.165E-01 9.115E-02 -1.432E-03 -9.782E-02 The twelfth coefficient (E) -2.234E-02 -2.371E-02 -4.116E-01 -1.259E-01 -1.450E-02 3.012E-01 Fourteenth coefficient (F) 1.989E-02 2.305E-02 3.690E-01 1.211E-01 3.443E-02 -5.599E-01 The sixteenth coefficient (G) -1.195E-02 -1.470E-02 -2.349E-01 -8.306E-02 -4.261E-02 6.872E-01 The eighteenth coefficient (H) 5.067E-03 6.592E-03 1.079E-01 4.099E-02 3.356E-02 -5.810E-01 The twentieth coefficient (J) -1.53​​5E-03 -2.135E-03 -3.582E-02 -1.457E-02 -1.777E-02 3.443E-01 The twenty-second coefficient (L) 3.309E-04 5.000E-04 8.527E-03 3.693E-03 6.417E-03 -1.429E-01 The twenty-fourth coefficient (M) -4.957E-05 -8.282E-05 -1.418E-03 -6.504E-04 -1.560E-03 4.068E-02 The 26th coefficient (N) 4.905E-06 9.209E-06 1.563E-04 7.559E-05 2.444E-04 -7.574E-03 The twenty-eighth coefficient (O) -2.883E-07 -6.164E-07 -1.027E-05 -5.209E-06 -2.230E-05 8.306E-04 The thirtieth coefficient (P) 7.621E-09 1.875E-08 3.041E-07 1.612E-07 9.003E-07 -4.068E-05 S7 S8 S9 S10 S11 S12 Conic constant (K) -4.031 -54.103 99.000 -15.990 -31.214 3.166 Fourth coefficient (A) -3.502E-03 -2.445E-03 -3.598E-02 -5.585E-02 -8.502E-02 -1.049E-01 Sixth coefficient (B) 1.076E-02 1.569E-02 1.597E-02 4.731E-02 6.952E-02 6.110E-02 The eighth coefficient (C) -5.584E-02 -8.493E-02 3.931E-02 -3.645E-02 -5.807E-02 -4.253E-02 The tenth coefficient (D) 1.530E-01 2.437E-01 -2.831E-01 -3.559E-02 2.633E-02 2.245E-02 The twelfth coefficient (E) -2.845E-01 -4.706E-01 7.524E-01 1.471E-01 1.522E-02 -5.274E-03 Fourteenth coefficient (F) 3.792E-01 6.319E-01 -1.211E+00 -2.177E-01 -4.226E-02 -2.929E-03 The sixteenth coefficient (G) -3.696E-01 -6.023E-01 1.310E+00 1.962E-01 4.176E-02 3.322E-03 The eighteenth coefficient (H) 2.650E-01 4.121E-01 -9.911E-01 -1.185E-01 -2.571E-02 -1.493E-03 The twentieth coefficient (J) -1.390E-01 -2.027E-01 5.317E-01 4.940E-02 1.089E-02 3.899E-04 The twenty-second coefficient (L) 5.255E-02 7.101E-02 -2.016E-01 -1.420E-02 -3.247E-03 -6.192E-05 The twenty-fourth coefficient (M) -1.390E-02 -1.726E-02 5.284E-02 2.742E-03 6.733E-04 5.637E-06 The 26th coefficient (N) 2.435E-03 2.762E-03 -9.111E-03 -3.359E-04 -9.254E-05 -2.232E-07 The twenty-eighth coefficient (O) -2.535E-04 -2.614E-04 9.298E-04 2.307E-05 7.568E-06 -3.306E-09 The thirtieth coefficient (P) 1.186E-05 1.106E-05 -4.255E-05 -6.467E-07 -2.780E-07 4.191E-10 S13 S14 S15 S16 S17 S18 Conic constant (K) 4.876 -1.931 -0.840 -1.426 62.666 -11.784 Fourth coefficient (A) -2.181E-02 7.091E-02 1.486E-01 9.821E-02 -1.161E-01 -5.944E-02 Sixth coefficient (B) 8.412E-03 -7.207E-02 -1.767E-01 -1.099E-01 5.165E-02 2.533E-02 The eighth coefficient (C) -1.940E-02 3.110E-02 1.135E-01 7.235E-02 -1.442E-02 -7.082E-03 The tenth coefficient (D) 2.384E-02 2.493E-03 -4.603E-02 -3.207E-02 2.549E-03 1.270E-03 The twelfth coefficient (E) -1.743E-02 -9.654E-03 1.228E-02 1.004E-02 -2.813E-04 -1.396E-04 Fourteenth coefficient (F) 8.346E-03 5.315E-03 -2.154E-03 -2.299E-03 1.819E-05 6.850E-06 The sixteenth coefficient (G) -2.791E-03 -1.654E-03 2.376E-04 3.927E-04 -4.617E-07 4.350E-07 The eighteenth coefficient (H) 6.749E-04 3.394E-04 -1.359E-05 -5.058E-05 -2.490E-08 -1.079E-07 The twentieth coefficient (J) -1.190E-04 -4.812E-05 -1.178E-07 4.895E-06 2.736E-09 9.552E-09 The twenty-second coefficient (L) 1.513E-05 4.756E-06 8.295E-08 -3.499E-07 -1.042E-10 -5.036E-10 The twenty-fourth coefficient (M) -1.344E-06 -3.219E-07 -6.321E-09 1.786E-08 1.453E-12 1.699E-11 The 26th coefficient (N) 7.877E-08 1.422E-08 2.303E-10 -6.129E-10 2.153E-14 -3.607E-13 The twenty-eighth coefficient (O) -2.725E-09 -3.683E-10 -3.955E-12 1.264E-11 -9.995E-16 4.409E-15 The thirtieth coefficient (P) 4.206E-11 4.232E-12 2.115E-14 -1.181E-13 9.930E-18 -2.371E-17

[0219] In addition, the optical imaging system 800 configured as described above may have the aberration characteristics shown in FIG16.

[0220] FIG17 is a structural diagram of an optical imaging system according to the ninth embodiment of the present disclosure, and FIG18 is a diagram showing the aberration characteristics of the optical imaging system shown in FIG17.

[0221] Referring to FIG17, the optical imaging system 900 according to the ninth embodiment of the present disclosure includes a first lens 901, a second lens 902, a third lens 903, a fourth lens 904, a fifth lens 905, a sixth lens 906, a seventh lens 907, an eighth lens 908 and a ninth lens 909, and may further include a filter 910 and an image sensor IS.

[0222] The optical imaging system 900 according to the ninth embodiment of this disclosure can form a focal point on an imaging surface 911. The imaging surface 911 may refer to the surface on which the optical imaging system forms a focal point. In an example, the imaging surface 911 may refer to a surface on which an image sensor IS receives light.

[0223] The lens characteristics (radius of curvature, lens thickness, distance between lenses, refractive index, Abbe number, and focal length) of each lens are shown in Table 17 below. Table 17 Surface number element radius of curvature Thickness or distance Refractive index Abbe number focal length S1 First lens 8.712 0.360 1.544 55.99 132.1836 S2 9.763 0.035 S3 Second lens 2.862 1.084 1.544 55.99 6.5405 S4 12.444 0.253 S5 Third lens 24.005 0.399 1.671 19.24 -13.3799 S6 6.546 0.206 S7 Fourth lens 6.614 0.350 1.544 55.99 20.9612 S8 15.365 0.452 S9 Fifth lens 58.344 0.307 1.671 19.24 -29.276 S10 14.793 0.320 S11 Sixth lens 6.329 0.318 1.635 23.96 -423.8648 S12 6.064 0.494 S13 Seventh Lens 8.207 0.697 1.567 37.40 6.1743 S14 -5.985 0.210 S15 Eighth lens -7.203 0.381 1.544 55.99 -58.3079 S16 -9.481 0.673 S17 Ninth Lens 49.243 0.380 1.535 55.74 -4.5756 S18 2.335 0.700 S19 Filter infinity 0.210 1.517 64.20 S20 infinity 0.391 S21 Imaging surface infinity

[0224] The total focal length f of the optical imaging system 900 according to the ninth embodiment of this disclosure is 6.8322 mm, Fno is 1.59 mm, IMG HT is 6 mm, FOV is 80.5°, SWA11 is 17.443°, SWA21 is 35.742°, and f12 is 6.340 mm.

[0225] In the ninth embodiment of this disclosure, the first lens 901 has positive refractive power, the first surface of the first lens 901 is convex in the paraxial region, and the second surface of the first lens 901 is concave in the paraxial region.

[0226] The second lens 902 has positive refractive power. The first surface of the second lens 902 is convex in the paraxial region, while the second surface of the second lens 902 is concave in the paraxial region.

[0227] The third lens 903 has negative refractive power. The first surface of the third lens 903 is convex in the paraxial region, while the second surface of the third lens 903 is concave in the paraxial region.

[0228] The fourth lens 904 has positive refractive power. The first surface of the fourth lens 904 is convex in the paraxial region, while the second surface of the fourth lens 904 is concave in the paraxial region.

[0229] The fifth lens 905 has negative refractive power. The first surface of the fifth lens 905 is convex in the paraxial region, while the second surface of the fifth lens 905 is concave in the paraxial region.

[0230] The sixth lens 906 has a negative refractive power. The first surface of the sixth lens 906 is convex in the paraxial region, while the second surface of the sixth lens 906 is concave in the paraxial region.

[0231] The seventh lens 907 has positive refractive power, and both the first and second surfaces of the seventh lens 907 are convex in the paraxial region.

[0232] The eighth lens 908 has a negative refractive power. The first surface of the eighth lens 908 is concave in the paraxial region, while the second surface of the eighth lens 908 is convex in the paraxial region.

[0233] The ninth lens 909 has negative refractive power. The first surface of the ninth lens 909 is convex in the paraxial region, while the second surface of the ninth lens 909 is concave in the paraxial region.

[0234] In addition, one or more of the fifth lens 905 to the ninth lens 909 have at least one inflection point formed on one or both of their respective first and second surfaces.

[0235] Each surface of the first lens 901 to the ninth lens 909 has an aspheric coefficient as shown in Table 18 below. For example, both the object-side surface and the image-side surface of each of the first lens 901 to the ninth lens 909 are aspherical surfaces. Table 18 S1 S2 S3 S4 S5 S6 Conic constant (K) 7.273 13.748 -1.509 -83.951 41.464 12.217 Fourth coefficient (A) -3.185E-03 -9.207E-03 -7.718E-03 -9.014E-03 -8.480E-03 -7.706E-03 Sixth coefficient (B) -1.480E-03 -3.201E-03 4.718E-02 1.049E-02 4.320E-04 4.334E-03 The eighth coefficient (C) -5.623E-03 1.223E-02 -1.406E-01 -4.043E-02 7.433E-03 9.311E-03 The tenth coefficient (D) 1.859E-02 -9.521E-03 2.805E-01 8.567E-02 -2.576E-03 -6.174E-02 The twelfth coefficient (E) -2.560E-02 2.006E-03 -3.693E-01 -1.190E-01 -1.451E-02 1.953E-01 Fourteenth coefficient (F) 2.186E-02 2.498E-03 3.339E-01 1.151E-01 3.516E-02 -3.717E-01 The sixteenth coefficient (G) -1.277E-02 -2.758E-03 -2.136E-01 -7.921E-02 -4.317E-02 4.647E-01 The eighteenth coefficient (H) 5.293E-03 1.486E-03 9.833E-02 3.919E-02 3.370E-02 -3.989E-01 The twentieth coefficient (J) -1.575E-03 -5.294E-04 -3.269E-02 -1.395E-02 -1.772E-02 2.395E-01 The twenty-second coefficient (L) 3.346E-04 1.334E-04 7.777E-03 3.538E-03 6.363E-03 -1.005E-01 The twenty-fourth coefficient (M) -4.958E-05 -2.381E-05 -1.291E-03 -6.229E-04 -1.541E-03 2.887E-02 The 26th coefficient (N) 4.867E-06 2.871E-06 1.421E-04 7.233E-05 2.408E-04 -5.419E-03 The twenty-eighth coefficient (O) -2.845E-07 -2.093E-07 -9.304E-06 -4.978E-06 -2.193E-05 5.984E-04 The thirtieth coefficient (P) 7.496E-09 6.931E-09 2.746E-07 1.538E-07 8.844E-07 -2.949E-05 S7 S8 S9 S10 S11 S12 Conic constant (K) -4.014 -52.220 -24.462 -9.279 -30.187 3.165 Fourth coefficient (A) -3.242E-03 -3.014E-03 -4.247E-02 -5.913E-02 -8.705E-02 -1.090E-01 Sixth coefficient (B) 1.068E-02 1.974E-02 6.865E-02 8.532E-02 6.766E-02 7.252E-02 The eighth coefficient (C) -5.959E-02 -9.936E-02 -1.746E-01 -1.722E-01 -2.306E-02 -5.892E-02 The tenth coefficient (D) 1.708E-01 2.720E-01 2.643E-01 2.569E-01 -7.920E-02 3.985E-02 The twelfth coefficient (E) -3.257E-01 -4.997E-01 -2.070E-01 -2.834E-01 1.913E-01 -2.002E-02 Fourteenth coefficient (F) 4.384E-01 6.395E-01 -1.435E-02 2.337E-01 -2.349E-01 6.884E-03 The sixteenth coefficient (G) -4.264E-01 -5.822E-01 2.263E-01 -1.478E-01 1.884E-01 -1.649E-03 The eighteenth coefficient (H) 3.027E-01 3.812E-01 -2.722E-01 7.334E-02 -1.053E-01 3.778E-04 The twentieth coefficient (J) -1.565E-01 -1.796E-01 1.829E-01 -2.879E-02 4.185E-02 -1.244E-04 The twenty-second coefficient (L) 5.815E-02 6.029E-02 -7.924E-02 8.801E-03 -1.183E-02 3.936E-05 The twenty-fourth coefficient (M) -1.510E-02 -1.404E-02 2.265E-02 -2.005E-03 2.324E-03 -8.227E-06 The 26th coefficient (N) 2.600E-03 2.150E-03 -4.145E-03 3.162E-04 -3.019E-04 1.027E-06 The twenty-eighth coefficient (O) -2.661E-04 -1.945E-04 4.407E-04 -3.044E-05 2.330E-05 -6.999E-08 The thirtieth coefficient (P) 1.225E-05 7.850E-06 -2.074E-05 1.337E-06 -8.081E-07 2.011E-09 S13 S14 S15 S16 S17 S18 Conic constant (K) 4.861 -2.019 -0.848 -1.391 62.777 -11.861 Fourth coefficient (A) -2.322E-02 7.284E-02 1.490E-01 9.799E-02 -1.162E-01 -5.958E-02 Sixth coefficient (B) 1.074E-02 -7.707E-02 -1.778E-01 -1.105E-01 5.157E-02 2.550E-02 The eighth coefficient (C) -2.136E-02 3.877E-02 1.149E-01 7.336E-02 -1.435E-02 -7.163E-03 The tenth coefficient (D) 2.484E-02 -5.016E-03 -4.699E-02 -3.272E-02 2.516E-03 1.276E-03 The twelfth coefficient (E) -1.790E-02 -4.923E-03 1.269E-02 1.027E-02 -2.703E-04 -1.328E-04 Fourteenth coefficient (F) 8.601E-03 3.329E-03 -2.272E-03 -2.347E-03 1.565E-05 4.213E-06 The sixteenth coefficient (G) -2.914E-03 -1.078E-03 2.609E-04 3.992E-04 -6.309E-08 9.235E-07 The eighteenth coefficient (H) 7.156E-04 2.211E-04 -1.682E-05 -5.110E-05 -6.795E-08 -1.636E-07 The twentieth coefficient (J) -1.281E-04 -3.077E-05 1.973E-07 4.913E-06 5.970E-09 1.378E-08 The twenty-second coefficient (L) 1.648E-05 2.948E-06 6.157E-08 -3.487E-07 -2.731E-10 -7.209E-10 The twenty-fourth coefficient (M) -1.477E-06 -1.910E-07 -5.349E-09 1.767E-08 7.475E-12 2.451E-11 The 26th coefficient (N) 8.715E-08 7.964E-09 2.027E-10 -6.026E-10 -1.185E-13 -5.290E-13 The twenty-eighth coefficient (O) -3.031E-09 -1.912E-10 -3.534E-12 1.235E-11 9.163E-16 6.606E-15 The thirtieth coefficient (P) 4.696E-11 1.982E-12 1.885E-14 -1.146E-13 -1.782E-18 -3.644E -17

[0236] In addition, the optical imaging system 900 configured as described above may have the aberration characteristics shown in FIG18.

[0237] FIG19 is a structural diagram of an optical imaging system according to the tenth embodiment of the present disclosure, and FIG20 is a diagram showing the aberration characteristics of the optical imaging system shown in FIG19.

[0238] Referring to FIG19, the optical imaging system 1000 according to the tenth embodiment of the present disclosure includes a first lens 1001, a second lens 1002, a third lens 1003, a fourth lens 1004, a fifth lens 1005, a sixth lens 1006, a seventh lens 1007, an eighth lens 1008 and a ninth lens 1009, and may further include a filter 1010 and an image sensor IS.

[0239] The optical imaging system 1000 according to the tenth embodiment of this disclosure can form a focal point on an imaging surface 1011. The imaging surface 1011 may refer to the surface on which the optical imaging system forms a focal point. In an example, the imaging surface 1011 may refer to a surface on which an image sensor IS receives light.

[0240] The lens characteristics (radius of curvature, lens thickness, distance between lenses, refractive index, Abbe number, and focal length) of each lens are shown in Table 19 below. Table 19 Surface number element radius of curvature Thickness or distance Refractive index Abbe number focal length S1 First lens 8.341 0.360 1.544 55.99 102.19 S2 9.656 0.035 S3 Second lens 2.903 1.068 1.544 55.99 6.56 S4 13.284 0.276 S5 Third lens 27.786 0.251 1.671 19.24 -12.89 S6 6.631 0.234 S7 Fourth lens 6.987 0.408 1.544 55.99 22.24 S8 16.103 0.432 S9 Fifth lens 41.293 0.386 1.671 19.24 499.45 S10 46.841 0.398 S11 Sixth lens 8.880 0.225 1.635 23.96 -28.24 S12 5.899 0.417 S13 Seventh Lens 8.031 0.792 1.567 37.40 6.59 S14 -6.811 0.210 S15 Eighth lens -8.952 0.415 1.544 55.99 -162.87 S16 -10.116 0.626 S17 Ninth Lens 44.981 0.380 1.535 55.74 -4.55 S18 2.312 0.700 S19 Filter infinity 0.210 1.517 64.20 S20 infinity 0.396 S21 Imaging surface infinity

[0241] The total focal length f of the optical imaging system 1000 according to the tenth embodiment of this disclosure is 6.83 mm, Fno is 1.59, IMG HT is 6 mm, FOV is 80.5°, SWA11 is 18.547°, SWA21 is 35.989°, and f12 is 6.273 mm.

[0242] In the tenth embodiment of this disclosure, the first lens 1001 has a positive refractive power, the first surface of the first lens 1001 is convex in the paraxial region, and the second surface of the first lens 1001 is concave in the paraxial region.

[0243] The second lens 1002 has positive refractive power. The first surface of the second lens 1002 is convex in the paraxial region, while the second surface of the second lens 1002 is concave in the paraxial region.

[0244] The third lens 1003 has negative refractive power. The first surface of the third lens 1003 is convex in the paraxial region, while the second surface of the third lens 1003 is concave in the paraxial region.

[0245] The fourth lens 1004 has positive refractive power. The first surface of the fourth lens 1004 is convex in the paraxial region, while the second surface of the fourth lens 1004 is concave in the paraxial region.

[0246] The fifth lens 1005 has positive refractive power. The first surface of the fifth lens 1005 is convex in the paraxial region, while the second surface of the fifth lens 1005 is concave in the paraxial region.

[0247] The sixth lens 1006 has a negative refractive power. The first surface of the sixth lens 1006 is convex in the paraxial region, while the second surface of the sixth lens 1006 is concave in the paraxial region.

[0248] The seventh lens 1007 has positive refractive power, and both the first and second surfaces of the seventh lens 1007 are convex in the paraxial region.

[0249] The eighth lens 1008 has negative refractive power. The first surface of the eighth lens 1008 is concave in the paraxial region, while the second surface of the eighth lens 1008 is convex in the paraxial region.

[0250] The ninth lens 1009 has negative refractive power. The first surface of the ninth lens 1009 is convex in the paraxial region, while the second surface of the ninth lens 1009 is concave in the paraxial region.

[0251] In addition, one or more of the fifth lens 1005 to the ninth lens 1009 have at least one inflection point formed on one or both of their respective first and second surfaces.

[0252] Each surface of the first lens 1001 to the ninth lens 1009 has an aspheric coefficient as shown in Table 20 below. For example, both the object-side surface and the image-side surface of each of the first lens 1001 to the ninth lens 1009 are aspherical surfaces. Table 20 S1 S2 S3 S4 S5 S6 Conic constant (K) 6.653 13.751 -1.434 -99.000 99.000 12.076 Fourth coefficient (A) -6.299E-03 -2.366E-02 -1.610E-02 -7.281E-03 -1.019E-02 2.110E-04 Sixth coefficient (B) -3.732E-03 2.148E-02 5.732E-02 8.921E-03 1.263E-02 -4.287E-02 The eighth coefficient (C) 6.434E-03 -1.939E-03 -1.181E-01 -3.819E-02 -4.904E-02 1.953E-01 The tenth coefficient (D) -1.593E-03 -3.313E-02 1.890E-01 7.900E-02 1.394E-01 -5.510E-01 The twelfth coefficient (E) -6.287E-03 6.493E-02 -2.189E-01 -1.050E-01 -2.399E-01 1.066E+00 Fourteenth coefficient (F) 1.061E-02 -7.018E-02 1.821E-01 9.692E-02 2.794E-01 -1.445E+00 The sixteenth coefficient (G) -9.058E-03 5.021E-02 -1.097E-01 -6.391E-02 -2.298E-01 1.400E+00 The eighteenth coefficient (H) 4.964E-03 -2.509E-02 4.817E-02 3.045E-02 1.359E-01 -9.813E-01 The twentieth coefficient (J) -1.855E-03 8.904E-03 -1.542E-02 -1.049E-02 -5.788E-02 4.980E-01 The twenty-second coefficient (L) 4.789E-04 -2.239E-03 3.558E-03 2.585E-03 1.760E-02 -1.810E-01 The twenty-fourth coefficient (M) -8.427E-05 3.903E-04 -5.761E-04 -4.440E-04 -3.720E-03 4.592E-02 The 26th coefficient (N) 9.656E-06 -4.488E-05 6.211E-05 5.047E-05 5.194E-04 -7.710E-03 The twenty-eighth coefficient (O) -6.501E-07 3.062E-06 -4.004E-06 -3.410E-06 -4.302E-05 7.695E-04 The thirtieth coefficient (P) 1.952E-08 -9.389E-08 1.168E-07 1.037E-07 1.601E-06 -3.456E-05 S7 S8 S9 S10 S11 S12 Conic constant (K) -3.030 -87.294 -96.699 99.000 -41.182 3.116 Fourth coefficient (A) 5.188E-03 1.277E-04 -2.435E-02 -2.039E-02 -4.069E-02 -6.081E-02 Sixth coefficient (B) -3.364E-02 -3.551E-03 2.934E-02 1.097E-02 -3.582E-02 -3.870E-02 The eighth coefficient (C) 1.088E-01 -2.109E-02 -1.408E-01 -7.724E-02 1.029E-01 9.128E-02 The tenth coefficient (D) -2.664E-01 9.513E-02 3.502E-01 2.036E-01 -1.439E-01 -8.390E-02 The twelfth coefficient (E) 4.607E-01 -2.185E-01 -5.711E-01 -3.383E-01 1.465E-01 4.168E-02 Fourteenth coefficient (F) -5.672E-01 3.200E-01 6.471E-01 3.851E-01 -1.214E-01 -8.921E-03 The sixteenth coefficient (G) 5.034E-01 -3.204E-01 -5.235E-01 -3.117E-01 8.091E-02 -2.269E-03 The eighteenth coefficient (H) -3.242E-01 2.260E-01 3.063E-01 1.827E-01 -4.149E-02 2.474E-03 The twentieth coefficient (J) 1.513E-01 -1.135E-01 -1.299E-01 -7.784E-02 1.578E-02 -9.528E-04 The twenty-second coefficient (L) -5.050E-02 4.036E-02 3.949E-02 2.387E-02 -4.332E-03 2.203E-04 The twenty-fourth coefficient (M) 1.174E-02 -9.937E-03 -8.391E-03 -5.136E-03 8.296E-04 -3.282E-05 The 26th coefficient (N) -1.803E-03 1.611E-03 1.183E-03 7.352E-04 -1.049E-04 3.091E-06 The twenty-eighth coefficient (O) 1.641E-04 -1.549E-04 -9.947E-05 -6.287E-05 7.864E-06 -1.678E-07 The thirtieth coefficient (P) -6.698E-06 6.686E-06 3.778E-06 2.430E-06 -2.644E-07 4.005E-09 S13 S14 S15 S16 S17 S18 Conic constant (K) 4.809 -2.728 0.106 -1.653 62.856 -12.089 Fourth coefficient (A) 1.285E-02 1.459E-01 2.118E-01 1.111E-01 -1.251E-01 -6.304E-02 Sixth coefficient (B) -6.046E-02 -2.224E-01 -3.067E-01 -1.394E-01 6.720E-02 3.272E-02 The eighth coefficient (C) 5.517E-02 1.891E-01 2.470E-01 1.062E-01 -2.378E-02 -1.178E-02 The tenth coefficient (D) -2.584E-02 -1.014E-01 -1.281E-01 -5.324E-02 5.553E-03 2.864E-03 The twelfth coefficient (E) 3.753E-03 3.614E-02 4.499E-02 1.811E-02 -8.735E-04 -4.775E-04 Fourteenth coefficient (F) 2.573E-03 -8.846E-03 -1.107E-02 -4.318E-03 9.509E-05 5.525E-05 The sixteenth coefficient (G) -1.855E-03 1.505E-03 1.956E-03 7.400E-04 -7.246E-06 -4.456E-06 The eighteenth coefficient (H) 6.170E-04 -1.767E-04 -2.517E-04 -9.253E-05 3.816E-07 2.494E-07 The twentieth coefficient (J) -1.292E-04 1.377E-05 2.371E-05 8.472E-06 -1.310E-08 -9.480E-09 The twenty-second coefficient (L) 1.812E-05 -6.364E-07 -1.622E-06 -5.623E-07 2.372E-10 2.319E-10 The twenty-fourth coefficient (M) -1.706E-06 9.905E-09 7.867E-08 2.634E-08 8.098E-13 -3.152E-12 The 26th coefficient (N) 1.037E-07 5.675E-10 -2.567E-09 -8.249E-10 -1.503E-13 1.037E-14 The twenty-eighth coefficient (O) -3.677E-09 -3.251E-11 5.061E-11 1.549E-11 3.203E-15 2.790E-16 The thirtieth coefficient (P) 5.787E-11 5.106E-13 -4.553E-13 -1.318E-13 -2.423E-17 -2.740E-18

[0253] In addition, the optical imaging system 1000 configured as described above may have the aberration characteristics shown in FIG20.

[0254] FIG21 is a structural diagram of an optical imaging system according to the eleventh embodiment of the present disclosure, and FIG22 is a diagram showing the aberration characteristics of the optical imaging system shown in FIG21.

[0255] Referring to FIG21, the optical imaging system 1100 according to the eleventh embodiment of the present disclosure includes a first lens 1101, a second lens 1102, a third lens 1103, a fourth lens 1104, a fifth lens 1105, a sixth lens 1106, a seventh lens 1107, an eighth lens 1108 and a ninth lens 1109, and may further include a filter 1110 and an image sensor IS.

[0256] The optical imaging system 1100 according to the eleventh embodiment of this disclosure can form a focal point on an imaging surface 1111. The imaging surface 1111 can refer to the surface on which the optical imaging system forms a focal point. In an example, the imaging surface 1111 can mean a surface on which an image sensor IS receives light.

[0257] The lens characteristics (radius of curvature, lens thickness, distance between lenses, refractive index, Abbe number, and focal length) of each lens are shown in Table 21 below. Table 21 Surface number element radius of curvature Thickness or distance Refractive index Abbe number focal length S1 First lens 3.150 0.386 1.544 55.99 53.68 S2 3.376 0.048 S3 Second lens 3.209 0.933 1.544 55.99 6.02 S4 118.460 0.030 S5 Third lens 17.018 0.210 1.639 23.49 -9.71 S6 4.558 0.278 S7 Fourth lens 6.696 0.323 1.544 55.99 -489.05 S8 6.421 0.374 S9 Fifth lens 5.294 0.365 1.671 19.24 34.51 S10 6.648 0.676 S11 Sixth lens 19.699 0.480 1.544 55.99 500 S12 21.047 0.188 S13 Seventh Lens -6.571 0.380 1.614 25.94 -36.7 S14 -9.444 0.060 S15 Eighth lens 2.087 0.457 1.544 55.99 8.25 S16 3.588 1.460 S17 Ninth Lens 30.338 0.400 1.535 55.74 -6.28 S18 3.020 0.304 S19 Filter infinity 0.210 1.517 64.20 S20 infinity 0.657 S21 Imaging surface infinity

[0258] The total focal length f of the optical imaging system 1100 according to the eleventh embodiment of this disclosure is 6.84 mm, Fno is 1.59 mm, IMG HT is 6 mm, FOV is 80.5°, SWA11 is 19.264°, SWA21 is 33.366°, and f12 is 5.659 mm.

[0259] In the eleventh embodiment of this disclosure, the first lens 1101 has a positive refractive power, the first surface of the first lens 1101 is convex in the paraxial region, and the second surface of the first lens 1101 is concave in the paraxial region.

[0260] The second lens 1102 has positive refractive power. The first surface of the second lens 1102 is convex in the paraxial region, while the second surface of the second lens 1102 is concave in the paraxial region.

[0261] The third lens 1103 has a negative refractive power. The first surface of the third lens 1103 is convex in the paraxial region, while the second surface of the third lens 1103 is concave in the paraxial region.

[0262] The fourth lens 1104 has a negative refractive power. The first surface of the fourth lens 1104 is convex in the paraxial region, while the second surface of the fourth lens 1104 is concave in the paraxial region.

[0263] The fifth lens 1105 has positive refractive power. The first surface of the fifth lens 1105 is convex in the paraxial region, while the second surface of the fifth lens 1105 is concave in the paraxial region.

[0264] The sixth lens 1106 has positive refractive power. The first surface of the sixth lens 1106 is convex in the paraxial region, while the second surface of the sixth lens 1106 is concave in the paraxial region.

[0265] The seventh lens 1107 has a negative refractive power. The first surface of the seventh lens 1107 is concave in the paraxial region, while the second surface of the seventh lens 1107 is convex in the paraxial region.

[0266] The eighth lens 1108 has positive refractive power. The first surface of the eighth lens 1108 is convex in the paraxial region, while the second surface of the eighth lens 1108 is concave in the paraxial region.

[0267] The ninth lens 1109 has negative refractive power. The first surface of the ninth lens 1109 is convex in the paraxial region, while the second surface of the ninth lens 1109 is concave in the paraxial region.

[0268] In addition, one or more of the fifth lens 1105 to the ninth lens 1109 have at least one inflection point formed on one or both of their respective first and second surfaces.

[0269] Each surface of the first lens 1101 to the ninth lens 1109 has an aspheric coefficient as shown in Table 22 below. For example, both the object-side surface and the image-side surface of each of the first lens 1101 to the ninth lens 1109 are aspherical surfaces. Table 22 S1 S2 S3 S4 S5 S6 Conic constant (K) -5.315 -12.128 -4.443 99.000 -2.170 4.574 Fourth coefficient (A) 4.012E-03 1.977E-02 4.923E-03 -1.118E-02 1.202E-02 7.635E-03 Sixth coefficient (B) 5.762E-02 3.160E-02 4.365E-02 3.353E-02 -9.621E-02 -8.808E-02 The eighth coefficient (C) -1.930E-01 -2.902E-01 -2.765E-01 -1.301E-01 2.846E-01 3.589E-01 The tenth coefficient (D) 3.470E-01 6.626E-01 6.317E-01 2.863E-01 -5.682E-01 -9.641E-01 The twelfth coefficient (E) -4.027E-01 -8.482E-01 -8.267E-01 -3.879E-01 7.969E-01 1.745E+00 Fourteenth coefficient (F) 3.210E-01 7.117E-01 7.150E-01 3.513E-01 -7.975E-01 -2.209E+00 The sixteenth coefficient (G) -1.817E-01 -4.163E-01 -4.337E-01 -2.225E-01 5.773E-01 1.997E+00 The eighteenth coefficient (H) 7.429E-02 1.745E-01 1.895E-01 1.008E-01 -3.041E-01 -1.304E+00 The twentieth coefficient (J) -2.202E-02 -5.286E-02 -6.011E-02 -3.289E-02 1.163E-01 6.145E-01 The twenty-second coefficient (L) 4.687E-03 1.149E-02 1.374E-02 7.676E-03 -3.190E-02 -2.068E-01 The twenty-fourth coefficient (M) -6.987E-04 -1.748E-03 -2.206E-03 -1.251E-03 6.106E-03 4.840E-02 The 26th coefficient (N) 6.924E-05 1.769E-04 2.365E-04 1.355E-04 -7.735E-04 -7.483E-03 The twenty-eighth coefficient (O) -4.099E-06 -1.069E-05 -1.520E-05 -8.763E-06 5.824E-05 6.867E-04 The thirtieth coefficient (P) 1.097E-07 2.924E-07 4.431E-07 2.567E-07 -1.972E-06 -2.832E-05 S7 S8 S9 S10 S11 S12 Conic constant (K) -13.095 -86.384 -34.841 -35.682 -38.044 48.470 Fourth coefficient (A) -1.046E-02 -1.872E-02 -4.558E-02 -3.459E-02 -5.916E-02 -9.678E-02 Sixth coefficient (B) -2.853E-02 7.166E-02 1.037E-01 2.592E-02 4.636E-02 7.136E-02 The eighth coefficient (C) 1.946E-01 -2.583E-01 -3.449E-01 -4.707E-02 -4.987E-02 -8.827E-02 The tenth coefficient (D) -5.238E-01 6.411E-01 7.772E-01 5.728E-02 4.095E-02 9.094E-02 The twelfth coefficient (E) 8.894E-01 -1.073E+00 -1.220E+00 -3.844E-02 -1.569E-02 -6.173E-02 Fourteenth coefficient (F) -1.050E+00 1.246E+00 1.368E+00 1.999E-03 -8.129E-03 2.709E-02 The sixteenth coefficient (G) 8.892E-01 -1.030E+00 -1.116E+00 2.150E-02 1.611E-02 -7.535E-03 The eighteenth coefficient (H) -5.456E-01 6.151E-01 6.684E-01 -2.174E-02 -1.177E-02 1.134E-03 The twentieth coefficient (J) 2.424E-01 -2.664E-01 -2.938E-01 1.173E-02 5.272E-03 1.624E-05 The twenty-second coefficient (L) -7.703E-02 8.285E-02 9.365E-02 -4.013E-03 -1.572E-03 -5.079E-05 The twenty-fourth coefficient (M) 1.705E-02 -1.803E-02 -2.107E-02 8.959E-04 3.133E-04 1.230E-05 The 26th coefficient (N) -2.494E-03 2.608E-03 3.171E-03 -1.268E-04 -4.018E-05 -1.554E-06 The twenty-eighth coefficient (O) 2.165E-04 -2.252E-04 -2.865E-04 1.032E-05 2.998E-06 1.067E-07 The thirtieth coefficient (P) -8.443E-06 8.791E-06 1.175E-05 -3.679E-07 -9.893E-08 -3.142E-09 S13 S14 S15 S16 S17 S18 Conic constant (K) 2.497 1.346 -6.249 -10.620 30.268 -12.329 Fourth coefficient (A) 3.212E-02 5.676E-03 1.085E-02 3.664E-02 -8.605E-02 -4.521E-02 Sixth coefficient (B) -9.529E-03 1.491E-04 -1.171E-02 -2.141E-02 3.316E-02 1.667E-02 The eighth coefficient (C) -4.148E-02 -1.551E-02 -4.099E-04 2.950E-03 -1.090E-02 -5.295E-03 The tenth coefficient (D) 7.175E-02 2.565E-02 4.620E-03 2.578E-03 2.904E-03 1.297E-03 The twelfth coefficient (E) -5.798E-02 -2.076E-02 -3.432E-03 -1.994E-03 -5.561E-04 -2.346E-04 Fourteenth coefficient (F) 2.818E-02 1.015E-02 1.393E-03 7.303E-04 7.358E-05 3.109E-05 The sixteenth coefficient (G) -8.921E-03 -3.289E-03 -3.671E-04 -1.696E-04 -6.708E-06 -3.046E-06 The eighteenth coefficient (H) 1.896E-03 7.393E-04 6.669E-05 2.690E-05 4.212E-07 2.223E-07 The twentieth coefficient (J) -2.703E-04 -1.176E-04 -8.515E-06 -2.983E-06 -1.793E-08 -1.208E-08 The twenty-second coefficient (L) 2.500E-05 1.325E-05 7.620E-07 2.314E-07 4.922E-10 4.815E-10 The twenty-fourth coefficient (M) -1.370E-06 -1.035E-06 -4.669E-08 -1.229E-08 -7.556E-12 -1.365E-11 The 26th coefficient (N) 3.341E-08 5.339E-08 1.860E-09 4.253E-10 2.811E-14 2.595E-13 The twenty-eighth coefficient (O) 2.335E-10 -1.637E-09 -4.330E-11 -8.625E-12 8.857E-16 -2.960E-15 The thirtieth coefficient (P) -1.915E-11 2.259E-11 4.454E-13 7.763E-14 -1.016E-17 1.526E-17

[0270] In addition, the optical imaging system 1100 configured as described above may have the aberration characteristics shown in FIG22.

[0271] FIG23 is a structural diagram of an optical imaging system according to the twelfth embodiment of the present disclosure, and FIG24 is a diagram showing the aberration characteristics of the optical imaging system shown in FIG23.

[0272] Referring to FIG23, the optical imaging system 1200 according to the twelfth embodiment of the present invention includes a first lens 1201, a second lens 1202, a third lens 1203, a fourth lens 1204, a fifth lens 1205, a sixth lens 1206, a seventh lens 1207, an eighth lens 1208 and a ninth lens 1209, and may further include a filter 1210 and an image sensor IS.

[0273] According to the twelfth embodiment of the present invention, the optical imaging system 1200 may form a focal point on an imaging surface 1211. The imaging surface 1211 may refer to the surface on which the optical imaging system forms a focal point. In an example, the imaging surface 1211 may refer to a surface on which an image sensor IS receives light.

[0274] The lens characteristics (radius of curvature, lens thickness, distance between lenses, refractive index, Abbe number, and focal length) of each lens are shown in Table 23 below. Table 23 Surface number element radius of curvature Thickness or distance Refractive index Abbe number focal length S1 First lens 3.149 0.386 1.544 55.99 56.2 S2 3.357 0.053 S3 Second lens 3.192 0.934 1.544 55.99 6 S4 108.696 0.030 S5 Third lens 16.839 0.210 1.639 23.49 -9.77 S6 4.565 0.279 S7 Fourth lens 6.722 0.322 1.544 55.99 -497.84 S8 6.449 0.368 S9 Fifth lens 5.099 0.351 1.671 19.24 37.57 S10 6.196 0.668 S11 Sixth lens 19.741 0.480 1.544 55.99 -1101.82 S12 18.950 0.207 S13 Seventh Lens -6.851 0.380 1.614 25.94 500 S14 -6.846 0.060 S15 Eighth lens 2.212 0.440 1.544 55.99 10.5 S16 3.346 1.490 S17 Ninth Lens 30.094 0.400 1.535 55.74 -6.37 S18 3.056 0.304 S19 Filter infinity 0.210 1.517 64.20 S20 infinity 0.648 S21 Imaging surface infinity

[0275] According to the twelfth embodiment of the present invention, the total focal length f of the optical imaging system 1200 is 6.84 mm, Fno is 1.59 mm, IMG HT is 6 mm, FOV is 80.5°, SWA11 is 19.281°, SWA21 is 33.538°, and f12 is 5.670 mm.

[0276] In the twelfth embodiment of the present invention, the first lens 1201 has a positive refractive power, the first surface of the first lens 1201 is convex in the paraxial region, and the second surface of the first lens 1201 is concave in the paraxial region.

[0277] The second lens 1202 has positive refractive power. The first surface of the second lens 1202 is convex in the paraxial region, while the second surface of the second lens 1202 is concave in the paraxial region.

[0278] The third lens 1203 has a negative refractive power. The first surface of the third lens 1203 is convex in the paraxial region, while the second surface of the third lens 1203 is concave in the paraxial region.

[0279] The fourth lens 1204 has a negative refractive power. The first surface of the fourth lens 1204 is convex in the paraxial region, while the second surface of the fourth lens 1204 is concave in the paraxial region.

[0280] The fifth lens 1205 has positive refractive power. The first surface of the fifth lens 1205 is convex in the paraxial region, while the second surface of the fifth lens 1205 is concave in the paraxial region.

[0281] The sixth lens 1206 has a negative refractive power. The first surface of the sixth lens 1206 is convex in the paraxial region, while the second surface of the sixth lens 1206 is concave in the paraxial region.

[0282] The seventh lens 1207 has positive refractive power. The first surface of the seventh lens 1207 is concave in the paraxial region, while the second surface of the seventh lens 1207 is convex in the paraxial region.

[0283] The eighth lens 1208 has positive refractive power. The first surface of the eighth lens 1208 is convex in the paraxial region, while the second surface of the eighth lens 1208 is concave in the paraxial region.

[0284] The ninth lens 1209 has a negative refractive power. The first surface of the ninth lens 1209 is convex in the paraxial region, while the second surface of the ninth lens 1209 is concave in the paraxial region.

[0285] In addition, one or more of the fifth lens 1205 to the ninth lens 1209 have at least one inflection point formed on one or both of their respective first and second surfaces.

[0286] Each surface of the first lens 1201 to the ninth lens 1209 has an aspheric coefficient as shown in Table 24 below. For example, both the object-side surface and the image-side surface of each of the first lens 1201 to the ninth lens 1209 are aspherical surfaces. Table 24 S1 S2 S3 S4 S5 S6 Conic constant (K) -5.303 -12.128 -4.451 99.000 -1.397 4.571 Fourth coefficient (A) 6.201E-03 2.124E-02 6.961E-03 -1.223E-02 5.382E-03 5.886E-03 Sixth coefficient (B) 4.462E-02 3.389E-04 8.614E-03 3.152E-02 -7.034E-02 -8.015E-02 The eighth coefficient (C) -1.546E-01 -1.572E-01 -1.350E-01 -1.011E-01 2.490E-01 3.463E-01 The tenth coefficient (D) 2.789E-01 3.852E-01 3.447E-01 2.060E-01 -5.602E-01 -9.562E-01 The twelfth coefficient (E) -3.236E-01 -4.948E-01 -4.678E-01 -2.717E-01 8.372E-01 1.746E+00 Fourteenth coefficient (F) 2.575E-01 4.096E-01 4.127E-01 2.445E-01 -8.642E-01 -2.213E+00 The sixteenth coefficient (G) -1.456E-01 -2.350E-01 -2.544E-01 -1.552E-01 6.345E-01 2.000E+00 The eighteenth coefficient (H) 5.948E-02 9.635E-02 1.131E-01 7.061E-02 -3.362E-01 -1.305E+00 The twentieth coefficient (J) -1.763E-02 -2.853E-02 -3.653E-02 -2.313E-02 1.289E-01 6.144E-01 The twenty-second coefficient (L) 3.753E-03 6.063E-03 8.523E-03 5.408E-03 -3.539E-02 -2.067E-01 The twenty-fourth coefficient (M) -5.599E-04 -9.025E-04 -1.400E-03 -8.812E-04 6.777E-03 4.839E-02 The 26th coefficient (N) 5.554E-05 8.941E-05 1.538E-04 9.516E-05 -8.591E-04 -7.484E-03 The twenty-eighth coefficient (O) -3.292E-06 -5.298E-06 -1.013E-05 -6.129E-06 6.475E-05 6.872E-04 The thirtieth coefficient (P) 8.822E-08 1.421E-07 3.033E-07 1.785E-07 -2.196E-06 -2.836E-05 S7 S8 S9 S10 S11 S12 Conic constant (K) -13.691 -88.386 -34.859 -33.513 -19.988 40.301 Fourth coefficient (A) -1.040E-02 -2.019E-02 -4.450E-02 -3.309E-02 -5.583E-02 -9.151E-02 Sixth coefficient (B) -3.899E-02 7.392E-02 9.530E-02 1.509E-02 3.728E-02 6.240E-02 The eighth coefficient (C) 2.565E-01 -2.578E-01 -3.145E-01 -9.315E-03 -3.394E-02 -8.264E-02 The tenth coefficient (D) -7.058E-01 6.296E-01 7.097E-01 -2.240E-02 1.871E-02 9.265E-02 The twelfth coefficient (E) 1.224E+00 -1.036E+00 -1.121E+00 7.431E-02 8.946E-03 -6.821E-02 Fourteenth coefficient (F) -1.469E+00 1.173E+00 1.269E+00 -1.098E-01 -2.870E-02 3.334E-02 The sixteenth coefficient (G) 1.261E+00 -9.390E-01 -1.048E+00 1.011E-01 2.870E-02 -1.114E-02 The eighteenth coefficient (H) -7.841E-01 5.385E-01 6.363E-01 -6.303E-02 -1.736E-02 2.562E-03 The twentieth coefficient (J) 3.532E-01 -2.218E-01 -2.839E-01 2.735E-02 7.070E-03 -3.878E-04 The twenty-second coefficient (L) -1.140E-01 6.490E-02 9.189E-02 -8.285E-03 -1.985E-03 3.125E-05 The twenty-fourth coefficient (M) 2.569E-02 -1.313E-02 -2.099E-02 1.718E-03 3.798E-04 6.343E-07 The 26th coefficient (N) -3.832E-03 1.740E-03 3.205E-03 -2.323E-04 -4.729E-05 -4.535E-07 The twenty-eighth coefficient (O) 3.399E-04 -1.354E-04 -2.936E-04 1.845E-05 3.454E-06 4.503E-08 The thirtieth coefficient (P) -1.357E-05 4.665E-06 1.219E-05 -6.515E-07 -1.122E-07 -1.595E-09 S13 S14 S15 S16 S17 S18 Conic constant (K) 2.715 -2.440 -6.162 -10.918 29.778 -12.260 Fourth coefficient (A) 2.475E-02 1.481E-02 1.452E-02 3.653E-02 -8.372E-02 -4.428E-02 Sixth coefficient (B) 1.179E-03 -5.263E-03 -1.833E-02 -2.197E-02 3.185E-02 1.616E-02 The eighth coefficient (C) -5.736E-02 -1.450E-02 6.590E-03 4.232E-03 -1.033E-02 -5.083E-03 The tenth coefficient (D) 9.035E-02 2.813E-02 -4.862E-05 1.581E-03 2.714E-03 1.232E-03 The twelfth coefficient (E) -7.306E-02 -2.384E-02 -1.359E-03 -1.563E-03 -5.124E-04 -2.206E-04 Fourteenth coefficient (F) 3.660E-02 1.200E-02 7.500E-04 6.093E-04 6.684E-05 2.897E-05 The sixteenth coefficient (G) -1.223E-02 -3.985E-03 -2.239E-04 -1.461E-04 -6.006E-06 -2.814E-06 The eighteenth coefficient (H) 2.822E-03 9.182E-04 4.343E-05 2.363E-05 3.714E-07 2.038E-07 The twentieth coefficient (J) -4.552E-04 -1.498E-04 -5.754E-06 -2.655E-06 -1.555E-08 -1.100E-08 The twenty-second coefficient (L) 5.119E-05 1.730E-05 5.243E-07 2.078E-07 4.188E-10 4.361E-10 The twenty-fourth coefficient (M) -3.934E-06 -1.386E-06 -3.220E-08 -1.109E-08 -6.238E-12 -1.230E-11 The 26th coefficient (N) 1.984E-07 7.332E-08 1.266E-09 3.849E-10 1.944E-14 2.331E-13 The twenty-eighth coefficient (O) -6.027E-09 -2.305E-09 -2.859E-11 -7.805E-12 7.868E-16 -2.649E-15 The thirtieth coefficient (P) 8.674E-11 3.261E-11 2.791E-13 7.005E-14 -8.601E-18 1.361E-17

[0287] In addition, the optical imaging system 1200 configured as described above may have the aberration characteristics shown in FIG24.

[0288] FIG25 is a structural diagram of an optical imaging system according to the thirteenth embodiment of the present disclosure, and FIG26 is a diagram showing the aberration characteristics of the optical imaging system shown in FIG25.

[0289] Referring to FIG25, the optical imaging system 1300 according to the thirteenth embodiment of the present invention includes a first lens 1301, a second lens 1302, a third lens 1303, a fourth lens 1304, a fifth lens 1305, a sixth lens 1306, a seventh lens 1307, an eighth lens 1308 and a ninth lens 1309, and may further include a filter 1310 and an image sensor IS.

[0290] According to the thirteenth embodiment of the present invention, the optical imaging system 1300 can form a focal point on the imaging surface 1311. The imaging surface 1311 may refer to the surface on which the optical imaging system forms a focal point. For example, the imaging surface 1311 may refer to a surface on which an image sensor IS receives light.

[0291] The lens characteristics (radius of curvature, lens thickness, distance between lenses, refractive index, Abbe number, and focal length) of each lens are shown in Table 25 below. Table 25 Surface number element radius of curvature Thickness or distance Refractive index Abbe number focal length S1 First lens 3.150 0.385 1.544 55.99 61.66 S2 3.325 0.056 S3 Second lens 3.163 0.933 1.544 55.99 5.94 S4 110.213 0.030 S5 Third lens 16.884 0.210 1.639 23.49 -9.78 S6 4.572 0.276 S7 Fourth lens 6.722 0.320 1.544 55.99 -496.4 S8 6.449 0.368 S9 Fifth lens 5.136 0.352 1.671 19.24 39.09 S10 6.192 0.671 S11 Sixth lens 18.581 0.480 1.544 55.99 500 S12 19.755 0.206 S13 Seventh Lens -6.817 0.380 1.614 25.94 500 S14 -6.813 0.060 S15 Eighth lens 2.196 0.428 1.544 55.99 10.87 S16 3.245 1.517 S17 Ninth Lens 30.100 0.400 1.535 55.74 -6.43 S18 3.083 0.304 S19 Filter infinity 0.210 1.517 64.20 S20 infinity 0.634 S21 Imaging surface infinity

[0292] According to the thirteenth embodiment of the optical imaging system 600, the total focal length f is 6.84 mm, Fno is 1.59 mm, IMG HT is 6 mm, FOV is 80.5°, SWA11 is 19.309°, SWA21 is 33.511°, and f12 is 5.670 mm.

[0293] In the thirteenth embodiment of the present invention, the first lens 1301 has positive refractive power, the first surface of the first lens 1301 is convex in the paraxial region, and the second surface of the first lens 1301 is concave in the paraxial region.

[0294] The second lens 1302 has positive refractive power. The first surface of the second lens 1302 is convex in the paraxial region, while the second surface of the second lens 1302 is concave in the paraxial region.

[0295] The third lens 1303 has a negative refractive power. The first surface of the third lens 1303 is convex in the paraxial region, while the second surface of the third lens 1303 is concave in the paraxial region.

[0296] The fourth lens 1304 has a negative refractive power. The first surface of the fourth lens 1304 is convex in the paraxial region, while the second surface of the fourth lens 1304 is concave in the paraxial region.

[0297] The fifth lens 1305 has positive refractive power. The first surface of the fifth lens 1305 is convex in the paraxial region, while the second surface of the fifth lens 1305 is concave in the paraxial region.

[0298] The sixth lens 1306 has positive refractive power. The first surface of the sixth lens 1306 is convex in the paraxial region, while the second surface of the sixth lens 1306 is concave in the paraxial region.

[0299] The seventh lens 1307 has positive refractive power. The first surface of the seventh lens 1307 is concave in the paraxial region, while the second surface of the seventh lens 1307 is convex in the paraxial region.

[0300] The eighth lens 1308 has positive refractive power. The first surface of the eighth lens 1308 is convex in the paraxial region, while the second surface of the eighth lens 1308 is concave in the paraxial region.

[0301] The ninth lens 1309 has negative refractive power. The first surface of the ninth lens 1309 is convex in the paraxial region, while the second surface of the ninth lens 1309 is concave in the paraxial region.

[0302] In addition, one or more of the fifth lens 1305 to the ninth lens 1309 have at least one inflection point formed on one or both of their respective first and second surfaces.

[0303] Each surface of the first lens 1301 to the ninth lens 1309 has an aspheric coefficient as shown in Table 26 below. For example, both the object-side surface and the image-side surface of each of the first lens 1301 to the ninth lens 1309 are aspherical surfaces. Table 26 S1 S2 S3 S4 S5 S6 Conic constant (K) -5.265 -12.081 -4.497 99.000 -3.771 4.570 Fourth coefficient (A) 9.723E-03 2.466E-02 7.356E-03 -1.211E-02 3.957E-04 5.762E-03 Sixth coefficient (B) 2.709E-02 -2.842E-02 -5.257E-03 2.186E-02 -5.221E-02 -8.331E-02 The eighth coefficient (C) -1.091E-01 -5.727E-02 -7.819E-02 -5.531E-02 2.206E-01 3.822E-01 The tenth coefficient (D) 2.058E-01 1.945E-01 2.327E-01 1.017E-01 -5.443E-01 -1.087E+00 The twelfth coefficient (E) -2.448E-01 -2.652E-01 -3.343E-01 -1.267E-01 8.533E-01 2.009E+00 Fourteenth coefficient (F) 1.982E-01 2.221E-01 3.066E-01 1.099E-01 -9.036E-01 -2.550E+00 The sixteenth coefficient (G) -1.136E-01 -1.270E-01 -1.956E-01 -6.758E-02 6.724E-01 2.295E+00 The eighteenth coefficient (H) 4.689E-02 5.159E-02 8.975E-02 2.975E-02 -3.587E-01 -1.487E+00 The twentieth coefficient (J) -1.402E-02 -1.511E-02 -2.990E-02 -9.366E-03 1.379E-01 6.942E-01 The twenty-second coefficient (L) 3.008E-03 3.173E-03 7.177E-03 2.087E-03 -3.789E-02 -2.314E-01 The twenty-fourth coefficient (M) -4.517E-04 -4.669E-04 -1.210E-03 -3.206E-04 7.252E-03 5.369E-02 The 26th coefficient (N) 4.508E-05 4.575E-05 1.361E-04 3.228E-05 -9.181E-04 -8.229E-03 The twenty-eighth coefficient (O) -2.687E-06 -2.683E-06 -9.163E-06 -1.918E-06 6.907E-05 7.489E-04 The thirtieth coefficient (P) 7.240E-08 7.133E-08 2.794E-07 5.110E-08 -2.338E-06 -3.064E-05 S7 S8 S9 S10 S11 S12 Conic constant (K) -13.538 -85.440 -33.417 -32.487 -20.904 44.577 Fourth coefficient (A) -1.237E-02 -2.197E-02 -4.111E-02 -3.479E-02 -5.655E-02 -9.796E-02 Sixth coefficient (B) -2.377E-02 8.236E-02 6.809E-02 2.377E-02 3.809E-02 7.745E-02 The eighth coefficient (C) 1.996E-01 -2.792E-01 -2.084E-01 -3.481E-02 -2.898E-02 -1.063E-01 The tenth coefficient (D) -5.686E-01 6.656E-01 4.542E-01 2.706E-02 4.089E-03 1.225E-01 The twelfth coefficient (E) 9.954E-01 -1.079E+00 -7.044E-01 9.334E-03 2.957E-02 -9.647E-02 Fourteenth coefficient (F) -1.197E+00 1.214E+00 7.889E-01 -5.028E-02 -4.726E-02 5.302E-02 The sixteenth coefficient (G) 1.026E+00 -9.706E-01 -6.483E-01 6.235E-02 4.031E-02 -2.122E-02 The eighteenth coefficient (H) -6.360E-01 5.592E-01 3.941E-01 -4.487E-02 -2.259E-02 6.352E-03 The twentieth coefficient (J) 2.852E-01 -2.326E-01 -1.769E-01 2.123E-02 8.779E-03 -1.429E-03 The twenty-second coefficient (L) -9.151E-02 6.917E-02 5.788E-02 -6.816E-03 -2.388E-03 2.368E-04 The twenty-fourth coefficient (M) 2.047E-02 -1.432E-02 -1.341E-02 1.474E-03 4.463E-04 -2.768E-05 The 26th coefficient (N) -3.029E-03 1.960E-03 2.084E-03 -2.058E-04 -5.458E-05 2.122E-06 The twenty-eighth coefficient (O) 2.664E-04 -1.592E-04 -1.945E-04 1.675E-05 3.930E-06 -9.388E-08 The thirtieth coefficient (P) -1.053E-05 5.814E-06 8.242E-06 -6.030E-07 -1.261E-07 1.763E-09 S13 S14 S15 S16 S17 S18 Conic constant (K) 2.610 -2.850 -6.044 -10.652 29.835 -12.297 Fourth coefficient (A) 1.874E-02 1.748E-02 1.767E-02 3.816E-02 -8.243E-02 -4.355E-02 Sixth coefficient (B) 1.180E-02 -9.318E-03 -2.322E-02 -2.386E-02 3.106E-02 1.586E-02 The eighth coefficient (C) -7.060E-02 -1.005E-02 1.132E-02 5.707E-03 -9.985E-03 -4.990E-03 The tenth coefficient (D) 1.035E-01 2.448E-02 -3.180E-03 7.466E-04 2.603E-03 1.208E-03 The twelfth coefficient (E) -8.290E-02 -2.162E-02 1.159E-04 -1.213E-03 -4.875E-04 -2.156E-04 Fourteenth coefficient (F) 4.197E-02 1.102E-02 2.512E-04 5.015E-04 6.307E-05 2.815E-05 The sixteenth coefficient (G) -1.437E-02 -3.670E-03 -1.021E-04 -1.220E-04 -5.623E-06 -2.713E-06 The eighteenth coefficient (H) 3.446E-03 8.447E-04 2.191E-05 1.972E-05 3.451E-07 1.948E-07 The twentieth coefficient (J) -5.888E-04 -1.374E-04 -3.012E-06 -2.201E-06 -1.435E-08 -1.042E-08 The twenty-second coefficient (L) 7.180E-05 1.580E-05 2.758E-07 1.702E-07 3.844E-10 4.091E-10 The twenty-fourth coefficient (M) -6.168E-06 -1.260E-06 -1.663E-08 -8.951E-09 -5.732E-12 -1.143E-11 The 26th coefficient (N) 3.593E-07 6.631E-08 6.280E-10 3.047E-10 1.956E-14 2.145E-13 The twenty-eighth coefficient (O) -1.294E-08 -2.073E-09 -1.322E-11 -6.037E-12 6.704E-16 -2.414E-15 The thirtieth coefficient (P) 2.206E-10 2.916E-11 1.148E-13 5.266E-14 -7.406E-18 1.229E-17

[0304] In addition, the optical imaging system 1300 configured as described above may have the aberration characteristics shown in FIG26.

[0305] FIG27 is a structural diagram of an optical imaging system according to the fourteenth embodiment of the present disclosure, and FIG28 is a diagram showing the aberration characteristics of the optical imaging system shown in FIG27.

[0306] Referring to FIG27, the optical imaging system 1400 according to the fourteenth embodiment of the present invention includes a first lens 1401, a second lens 1402, a third lens 1403, a fourth lens 1404, a fifth lens 1405, a sixth lens 1406, a seventh lens 1407, an eighth lens 1408 and a ninth lens 1409, and may further include a filter 1410 and an image sensor IS.

[0307] According to the fourteenth embodiment of the present invention, the optical imaging system 1400 can form a focal point on an imaging surface 1411. The imaging surface 1411 may refer to the surface on which the optical imaging system forms a focal point. In an example, the imaging surface 1411 may refer to a surface on which an image sensor IS receives light.

[0308] The lens characteristics (radius of curvature, lens thickness, distance between lenses, refractive index, Abbe number, and focal length) of each lens are shown in Table 27 below. Table 27 Surface number element radius of curvature Thickness or distance Refractive index Abbe number focal length S1 First lens 3.112 0.410 1.544 55.99 37.73 S2 3.494 0.067 S3 Second lens 3.316 1.039 1.544 55.99 6.26 S4 96.614 0.030 S5 Third lens 17.681 0.295 1.639 23.49 -9.58 S6 4.552 0.243 S7 Fourth lens 6.133 0.411 1.544 55.99 23.44 S8 11.490 0.540 S9 Fifth lens 19.705 0.367 1.671 19.24 -57.87 S10 13.024 0.370 S11 Sixth lens 26.215 0.480 1.544 55.99 -65.66 S12 15.049 0.164 S13 Seventh Lens -6.531 0.413 1.614 25.94 -121.29 S14 -7.325 0.060 S15 Eighth lens 2.198 0.495 1.544 55.99 8.14 S16 4.002 1.262 S17 Ninth Lens 33.575 0.425 1.535 55.74 -5.68 S18 2.783 0.868 S19 Filter infinity 0.210 1.517 64.20 S20 infinity 0.070 S21 Imaging surface infinity

[0309] According to the fourteenth embodiment of the present invention, the total focal length f of the optical imaging system 1400 is 6.83 mm, Fno is 1.49 mm, IMG HT is 6 mm, FOV is 80.5°, SWA11 is 20.181°, SWA21 is 34.613°, and f12 is 5.623 mm.

[0310] In the fourteenth embodiment of the present invention, the first lens 1401 has a positive refractive power, the first surface of the first lens 1401 is convex in the paraxial region, and the second surface of the first lens 1401 is concave in the paraxial region.

[0311] The second lens 1402 has positive refractive power. The first surface of the second lens 1402 is convex in the paraxial region, while the second surface of the second lens 1402 is concave in the paraxial region.

[0312] The third lens 1403 has negative refractive power. The first surface of the third lens 1403 is convex in the paraxial region, while the second surface of the third lens 1403 is concave in the paraxial region.

[0313] The fourth lens 1404 has positive refractive power. The first surface of the fourth lens 1404 is convex in the paraxial region, while the second surface of the fourth lens 1404 is concave in the paraxial region.

[0314] The fifth lens 1405 has negative refractive power. The first surface of the fifth lens 1405 is convex in the paraxial region, while the second surface of the fifth lens 1405 is concave in the paraxial region.

[0315] The sixth lens 1406 has negative refractive power. The first surface of the sixth lens 1406 is convex in the paraxial region, while the second surface of the sixth lens 1406 is concave in the paraxial region.

[0316] The seventh lens 1407 has a negative refractive power. The first surface of the seventh lens 1407 is concave in the paraxial region, while the second surface of the seventh lens 1407 is convex in the paraxial region.

[0317] The eighth lens 1408 has positive refractive power. The first surface of the eighth lens 1408 is convex in the paraxial region, while the second surface of the eighth lens 1408 is concave in the paraxial region.

[0318] The ninth lens 1409 has negative refractive power. The first surface of the ninth lens 1409 is convex in the paraxial region, while the second surface of the ninth lens 1409 is concave in the paraxial region.

[0319] In addition, one or more of the fifth lens 1405 to the ninth lens 1409 have at least one inflection point formed on one or both of their respective first and second surfaces.

[0320] Each surface of the first lens 1401 to the ninth lens 1409 has an aspherical coefficient as shown in Table 28 below. For example, both the object-side surface and the image-side surface of each of the first lens 1401 to the ninth lens 1409 are aspherical surfaces. Table 28 S1 S2 S3 S4 S5 S6 Conic constant (K) -4.915 -12.307 -4.362 99.000 10.694 4.554 Fourth coefficient (A) 1.472E-02 1.022E-02 -1.835E-03 3.071E-02 2.295E-02 1.071E-02 Sixth coefficient (B) -1.508E-02 -1.569E-02 -8.326E-05 -1.448E-01 -1.483E-01 -1.915E-01 The eighth coefficient (C) 2.611E-02 1.476E-02 4.518E-03 3.069E-01 3.740E-01 8.442E-01 The tenth coefficient (D) -3.675E-02 -1.829E-02 -1.241E-02 -4.203E-01 -6.158E-01 -2.275E+00 The twelfth coefficient (E) 3.508E-02 2.017E-02 1.881E-02 3.967E-01 7.105E-01 4.032E+00 Fourteenth coefficient (F) -2.344E-02 -1.496E-02 -1.607E-02 -2.631E-01 -5.830E-01 -4.902E+00 The sixteenth coefficient (G) 1.119E-02 7.336E-03 8.726E-03 1.236E-01 3.438E-01 4.203E+00 The eighteenth coefficient (H) -3.850E-03 -2.400E-03 -3.192E-03 -4.099E-02 -1.467E-01 -2.582E+00 The twentieth coefficient (J) 9.544E-04 5.131E-04 8.012E-04 9.454E-03 4.527E-02 1.141E+00 The twenty-second coefficient (L) -1.685E-04 -6.567E-05 -1.363E-04 -1.455E-03 -9.991E-03 -3.594E-01 The twenty-fourth coefficient (M) 2.061E-05 3.388E-06 1.502E-05 1.352E-04 1.536E-03 7.879E-02 The 26th coefficient (N) -1.656E-06 2.678E-07 -9.627E-07 -5.426E-06 -1.559E-04 -1.141E-02 The twenty-eighth coefficient (O) 7.836E-08 -4.885E-08 2.611E-08 -1.443E-07 9.391E-06 9.824E-04 The thirtieth coefficient (P) -1.647E-09 2.101E-09 1.259E-10 1.613E-08 -2.537E-07 -3.803E-05 S7 S8 S9 S10 S11 S12 Conic constant (K) -8.127 -53.603 -24.476 -44.380 15.028 1.666 Fourth coefficient (A) 4.466E-03 4.062E-03 -2.750E-02 -2.920E-02 -6.257E-02 -9.148E-02 Sixth coefficient (B) -3.158E-02 -4.247E-02 2.020E-02 9.525E-03 3.873E-02 4.383E-02 The eighth coefficient (C) 9.498E-02 1.681E-01 -1.211E-01 -1.379E-02 -3.081E-02 -9.348E-03 The tenth coefficient (D) -2.109E-01 -4.550E-01 3.633E-01 1.400E-02 4.442E-02 -1.104E-02 The twelfth coefficient (E) 3.397E-01 8.422E-01 -6.809E-01 -5.307E-03 -6.870E-02 1.548E-02 Fourteenth coefficient (F) -3.940E-01 -1.090E+00 8.579E-01 -9.870E-03 7.347E-02 -1.147E-02 The sixteenth coefficient (G) 3.312E-01 1.003E+00 -7.574E-01 1.846E-02 -5.288E-02 5.873E-03 The eighteenth coefficient (H) -2.024E-01 -6.627E-01 4.789E-01 -1.541E-02 2.627E-02 -2.144E-03 The twentieth coefficient (J) 8.961E-02 3.142E-01 -2.184E-01 7.855E-03 -9.127E-03 5.575E-04 The twenty-second coefficient (L) -2.838E-02 -1.058E-01 7.132E-02 -2.624E-03 2.213E-03 -1.026E-04 The twenty-fourth coefficient (M) 6.254E-03 2.465E-02 -1.629E-02 5.784E-04 -3.664E-04 1.309E-05 The 26th coefficient (N) -9.092E-04 -3.773E-03 2.471E-03 -8.126E-05 3.945E-05 -1.103E-06 The twenty-eighth coefficient (O) 7.831E-05 3.408E-04 -2.241E-04 6.597E-06 -2.484E-06 5.524E-08 The thirtieth coefficient (P) -3.023E-06 -1.374E-05 9.191E-06 -2.355E-07 6.931E-08 -1.241E-09 S13 S14 S15 S16 S17 S18 Conic constant (K) 3.582 1.778 -7.010 -12.692 30.689 -17.741 Fourth coefficient (A) 3.804E-02 -7.739E-03 -9.790E-04 2.404E-02 -1.132E-01 -4.777E-02 Sixth coefficient (B) -3.480E-02 3.571E-02 1.792E-02 -1.988E-03 5.994E-02 2.150E-02 The eighth coefficient (C) 3.010E-02 -6.116E-02 -3.639E-02 -1.387E-02 -2.608E-02 -8.081E-03 The tenth coefficient (D) -2.189E-02 6.020E-02 3.018E-02 1.160E-02 8.445E-03 2.245E-03 The twelfth coefficient (E) 1.222E-02 -3.811E-02 -1.53​​9E-02 -5.165E-03 -1.911E-03 -4.485E-04 Fourteenth coefficient (F) -5.409E-03 1.629E-02 5.316E-03 1.498E-03 3.017E-04 6.475E-05 The sixteenth coefficient (G) 1.784E-03 -4.867E-03 -1.299E-03 -3.014E-04 -3.379E-05 -6.859E-06 The eighteenth coefficient (H) -3.721E-04 1.036E-03 2.288E-04 4.324E-05 2.720E-06 5.382E-07 The twentieth coefficient (J) 2.887E-05 -1.584E-04 -2.916E-05 -4.455E-06 -1.581E-07 -3.123E-08 The twenty-second coefficient (L) 6.760E-06 1.725E-05 2.658E-06 3.270E-07 6.580E-09 1.320E-09 The twenty-fourth coefficient (M) -2.285E-06 -1.307E-06 -1.686E-07 -1.668E-08 -1.916E-10 -3.944E-11 The 26th coefficient (N) 2.950E-07 6.551E-08 7.051E-09 5.614E-10 3.707E-12 7.860E-13 The twenty-eighth coefficient (O) -1.876E-08 -1.954E-09 -1.745E-10 -1.119E-11 -4.285E-14 -9.355E-15 The thirtieth coefficient (P) 4.847E-10 2.627E-11 1.933E-12 1.001E-13 2.239E-16 5.017E-17

[0321] In addition, the optical imaging system 1400 configured as described above may have the aberration characteristics shown in FIG28.

[0322] FIG29 is a structural diagram of an optical imaging system according to the fifteenth embodiment of the present disclosure, and FIG30 is a diagram showing the aberration characteristics of the optical imaging system shown in FIG29.

[0323] Referring to FIG29, the optical imaging system 1500 according to the fifteenth embodiment of the present invention includes a first lens 1501, a second lens 1502, a third lens 1503, a fourth lens 1504, a fifth lens 1505, a sixth lens 1506, a seventh lens 1507, an eighth lens 1508 and a ninth lens 1509, and may further include a filter 1510 and an image sensor IS.

[0324] According to the fifteenth embodiment of the present invention, the optical imaging system 1500 may form a focal point on an imaging surface 1511. The imaging surface 1511 may refer to the surface on which the optical imaging system forms a focal point. In an example, the imaging surface 1511 may refer to a surface on which an image sensor IS receives light.

[0325] The lens characteristics (radius of curvature, lens thickness, distance between lenses, refractive index, Abbe number, and focal length) of each lens are shown in Table 29 below. Table 29 Surface number element radius of curvature Thickness or distance Refractive index Abbe number focal length S1 First lens 3.110 0.374 1.544 55.99 37.06 S2 3.519 0.111 S3 Second lens 3.338 0.949 1.544 55.99 6.36 S4 75.139 0.033 S5 Third lens 16.743 0.210 1.639 23.49 -9.72 S6 4.541 0.226 S7 Fourth lens 5.762 0.388 1.544 55.99 21.7 S8 10.941 0.609 S9 Fifth lens 51.940 0.401 1.671 19.24 -52.34 S10 21.033 0.402 S11 Sixth lens 39.872 0.480 1.544 55.99 -66.59 S12 18.943 0.163 S13 Seventh Lens -6.448 0.380 1.614 25.94 -90.53 S14 -7.449 0.060 S15 Eighth lens 2.156 0.538 1.544 55.99 7.89 S16 3.937 1.228 S17 Ninth Lens 32.913 0.400 1.535 55.74 -5.95 S18 2.900 0.306 S19 Filter infinity 0.210 1.517 64.20 S20 infinity 0.751 S21 Imaging surface infinity

[0326] According to the fifteenth embodiment of the present invention, the total focal length f of the optical imaging system 1500 is 6.84 mm, Fno is 1.69, IMG HT is 6 mm, FOV is 80.49°, SWA11 is 19.045°, SWA21 is 33.395°, and f12 is 5.671 mm.

[0327] In the fifteenth embodiment of the present invention, the first lens 1501 has a positive refractive power, the first surface of the first lens 1501 is convex in the paraxial region, and the second surface of the first lens 1501 is concave in the paraxial region.

[0328] The second lens 1502 has positive refractive power. The first surface of the second lens 1502 is convex in the paraxial region, while the second surface of the second lens 1502 is concave in the paraxial region.

[0329] The third lens 1503 has negative refractive power. The first surface of the third lens 1503 is convex in the paraxial region, while the second surface of the third lens 1503 is concave in the paraxial region.

[0330] The fourth lens 1504 has positive refractive power. The first surface of the fourth lens 1504 is convex in the paraxial region, while the second surface of the fourth lens 1504 is concave in the paraxial region.

[0331] The fifth lens 1505 has negative refractive power. The first surface of the fifth lens 1505 is convex in the paraxial region, while the second surface of the fifth lens 1505 is concave in the paraxial region.

[0332] The sixth lens 1506 has negative refractive power. The first surface of the sixth lens 1506 is convex in the paraxial region, while the second surface of the sixth lens 1506 is concave in the paraxial region.

[0333] The seventh lens 1507 has negative refractive power. The first surface of the seventh lens 1507 is concave in the paraxial region, while the second surface of the seventh lens 1507 is convex in the paraxial region.

[0334] The eighth lens 1508 has positive refractive power. The first surface of the eighth lens 1508 is convex in the paraxial region, while the second surface of the eighth lens 1508 is concave in the paraxial region.

[0335] The ninth lens 1509 has negative refractive power. The first surface of the ninth lens 1509 is convex in the paraxial region, while the second surface of the ninth lens 1509 is concave in the paraxial region.

[0336] In addition, one or more of the fifth lens 1505 to the ninth lens 1509 have at least one inflection point formed on one or both of their respective first and second surfaces.

[0337] Each surface of the first lens 1501 to the ninth lens 1509 has an aspheric coefficient as shown in Table 30 below. For example, both the object-side surface and the image-side surface of each of the first lens 1501 to the ninth lens 1509 are aspherical surfaces. Table 30 S1 S2 S3 S4 S5 S6 Conic constant (K) -5.517 -12.092 -4.259 99.000 20.052 4.565 Fourth coefficient (A) 1.933E-02 1.397E-02 -2.160E-03 4.518E-02 3.735E-02 6.053E-03 Sixth coefficient (B) -3.085E-02 -4.567E-02 1.093E-03 -2.702E-01 -2.608E-01 -1.387E-01 The eighth coefficient (C) 6.061E-02 1.079E-01 -8.651E-03 7.191E-01 7.711E-01 5.715E-01 The tenth coefficient (D) -9.012E-02 -1.882E-01 4.058E-02 -1.197E+00 -1.430E+00 -1.469E+00 The twelfth coefficient (E) 9.244E-02 2.266E-01 -8.070E-02 1.352E+00 1.814E+00 2.542E+00 Fourteenth coefficient (F) -6.691E-02 -1.899E-01 9.668E-02 -1.077E+00 -1.632E+00 -3.073E+00 The sixteenth coefficient (G) 3.473E-02 1.132E-01 -7.649E-02 6.190E-01 1.064E+00 2.656E+00 The eighteenth coefficient (H) -1.303E-02 -4.860E-02 4.166E-02 -2.594E-01 -5.069E-01 -1.659E+00 The twentieth coefficient (J) 3.526E-03 1.508E-02 -1.590E-02 7.928E-02 1.766E-01 7.502E-01 The twenty-second coefficient (L) -6.799E-04 -3.351E-03 4.248E-03 -1.746E-02 -4.441E-02 -2.429E-01 The twenty-fourth coefficient (M) 9.075E-05 5.199E-04 -7.795E-04 2.697E-03 7.846E-03 5.487E-02 The 26th coefficient (N) -7.927E-06 -5.349E-05 9.363E-05 -2.768E-04 -9.231E-04 -8.209E-03 The twenty-eighth coefficient (O) 4.050E-07 3.279E-06 -6.632E-06 1.694E-05 6.490E-05 7.306E-04 The thirtieth coefficient (P) -9.087E-09 -9.062E-08 2.101E-07 -4.671E-07 -2.061E-06 -2.928E-05 S7 S8 S9 S10 S11 S12 Conic constant (K) -8.237 -64.854 -99.000 -74.600 56.326 10.586 Fourth coefficient (A) 6.270E-04 -7.096E-03 -2.960E-02 -3.370E-02 -6.276E-02 -9.275E-02 Sixth coefficient (B) -2.500E-02 3.036E-02 8.598E-04 1.322E-02 2.811E-02 3.620E-02 The eighth coefficient (C) 8.655E-02 -1.314E-01 -1.213E-02 -2.175E-02 1.989E-02 -2.576E-03 The tenth coefficient (D) -2.104E-01 3.452E-01 6.403E-02 4.314E-02 -7.486E-02 -1.521E-02 The twelfth coefficient (E) 3.705E-01 -6.140E-01 -1.705E-01 -7.246E-02 1.075E-01 2.160E-02 Fourteenth coefficient (F) -4.723E-01 7.734E-01 2.710E-01 8.448E-02 -1.015E-01 -1.850E-02 The sixteenth coefficient (G) 4.370E-01 -7.059E-01 -2.839E-01 -6.799E-02 6.806E-02 1.056E-02 The eighteenth coefficient (H) -2.933E-01 4.714E-01 2.058E-01 3.854E-02 -3.309E-02 -4.114E-03 The twentieth coefficient (J) 1.420E-01 -2.302E-01 -1.052E-01 -1.556E-02 1.170E-02 1.106E-03 The twenty-second coefficient (L) -4.898E-02 8.115E-02 3.798E-02 4.456E-03 -2.975E-03 -2.049E-04 The twenty-fourth coefficient (M) 1.171E-02 -2.009E-02 -9.480E-03 -8.856E-04 5.298E-04 2.555E-05 The 26th coefficient (N) -1.841E-03 3.313E-03 1.560E-03 1.163E-04 -6.263E-05 -2.032E-06 The twenty-eighth coefficient (O) 1.710E-04 -3.264E-04 -1.524E-04 -9.078E-06 4.412E-06 9.185E-08 The thirtieth coefficient (P) -7.110E-06 1.453E-05 6.705E-06 3.196E-07 -1.400E-07 -1.755E-09 S13 S14 S15 S16 S17 S18 Conic constant (K) 3.384 2.029 -7.436 -13.027 24.864 -13.487 Fourth coefficient (A) 5.179E-02 3.583E-03 2.902E-03 3.067E-02 -9.969E-02 -5.050E-02 Sixth coefficient (B) -6.312E-02 3.551E-03 -3.912E-03 -1.869E-02 4.168E-02 1.934E-02 The eighth coefficient (C) 5.710E-02 -1.512E-02 -8.030E-03 3.714E-03 -1.419E-02 -6.175E-03 The tenth coefficient (D) -4.232E-02 1.856E-02 9.321E-03 6.853E-04 3.807E-03 1.538E-03 The twelfth coefficient (E) 2.845E-02 -1.277E-02 -5.497E-03 -7.614E-04 -7.331E-04 -2.929E-04 Fourteenth coefficient (F) -1.715E-02 5.554E-03 2.082E-03 2.757E-04 9.751E-05 4.239E-05 The sixteenth coefficient (G) 8.223E-03 -1.628E-03 -5.427E-04 -6.057E-05 -8.838E-06 -4.670E-06 The eighteenth coefficient (H) -2.901E-03 3.330E-04 1.000E-04 8.955E-06 5.329E-07 3.917E-07 The twentieth coefficient (J) 7.334E-04 -4.828E-05 -1.308E-05 -9.169E-07 -1.975E-08 -2.476E-08 The twenty-second coefficient (L) -1.310E-04 4.946E-06 1.197E-06 6.489E-08 3.144E-10 1.153E-09 The twenty-fourth coefficient (M) 1.617E-05 -3.499E-07 -7.415E-08 -3.091E-09 6.957E-12 -3.808E-11 The 26th coefficient (N) -1.314E-06 1.624E-08 2.921E-09 9.344E-11 -4.755E-13 8.394E-13 The twenty-eighth coefficient (O) 6.345E-08 -4.439E-10 -6.465E-11 -1.584E-12 9.821E-15 -1.102E-14 The thirtieth coefficient (P) -1.380E-09 5.392E-12 5.888E-13 1.100E-14 -7.627E-17 6.493E-17

[0338] In addition, the optical imaging system 1500 configured as described above may have the aberration characteristics shown in FIG30.

[0339] Table 31 below shows the conditional expression values ​​for the optical imaging systems according to each of the first to fifteenth embodiments. Table 31 conditional expression Example 1 Example 2 Example 3 Example 4 Example 5 0 < f1 / f < 30 5.418 4.826 5.728 4.920 5.402 0 < f² / f < 3 0.930 0.955 0.925 0.959 0.912 -3 < f3 / f < 0 -1.421 -1.428 -1.433 -1.450 -1.365 -1 < f4 / f / 100 < 0.5 0.032 0.031 0.033 0.033 0.037 -0.5 < f5 / f / 100 < 1 -0.077 -0.072 -0.063 -0.054 0.439 -2 < f6 / f / 100 < 1.5 -0.097 -0.073 0.562 1.462 -0.075 -0.5 < f7 / f / 15 -0.132 0.582 -0.081 14.217 -0.062 -1 < f8 / f / 100 < 0.5 0.012 0.012 0.012 0.013 0.011 -3 < f9 / f < 0 -0.870 -0.857 -0.870 -0.849 -0.868 v1-v3 < 45 32.5 32.5 32.5 32.5 32.5 v1-v5 < 45 36.75 36.75 36.75 36.75 36.75 TTL / f < 1.5 1.205 1.202 1.202 1.202 1.206 BFL / f < 0.5 0.189 0.185 0.186 0.186 0.189 TTL / (2ⅹIMG HT) < 0.7 0.687 0.685 0.685 0.685 0.687 FOVⅹIMG HT / f > 60° 70.877° 70.614° 70.614° 70.614° 70.614° Fno ≤ 1.69 1.59 1.59 1.59 1.59 1.59 SWA11 < 25° 19.045° 19.011° 19.065° 19.074° 19.090° SWA21 < 36° 33.395° 32.830° 33.450° 32.851° 33.324° Nv26 <= 3 3 3 3 3 3 35 < v3+v5 < 45 42.73 42.73 42.73 42.73 42.73 4.5 < f1 / f2 < 21 5.827 5.053 6.191 5.132 5.921 0.4 < |f12 / f3| < 0.6 0.578 0.576 0.575 0.571 0.592 0.4 < |f2 / f3| < 0.7 0.654 0.669 0.646 0.661 0.668 0.09 < |f3 / f1| < 0.32 0.262 0.296 0.250 0.295 0.253 conditional expression Example 6 Example 7 Example 8 Example 9 Example 10 0 < f1 / f < 30 6.218 7.123 19.625 19.353 14.962 0 < f² / f < 3 0.889 0.887 0.958 0.958 0.960 -3 < f3 / f < 0 -1.355 -1.409 -1.962 -1.959 -1.887 -1 < f4 / f / 100 < 0.5 0.037 -0.731 0.030 0.031 0.033 -0.5 < f5 / f / 100 < 1 0.731 0.048 -0.037 -0.043 0.731 -2 < f6 / f / 100 < 1.5 -0.055 -1.326 0.457 -0.621 -0.041 -0.5 < f7 / f / 15 0.731 -0.058 0.009 0.009 0.010 -1 < f8 / f / 100 < 0.5 0.013 0.012 -0.083 -0.085 -0.238 -3 < f9 / f < 0 -0.879 -0.915 -0.669 -0.671 -0.666 v1-v3 < 45 32.5 32.5 36.75 36.75 36.75 v1-v5 < 45 36.75 36.75 36.75 36.75 36.75 TTL / f < 1.5 1.206 1.202 1.204 1.204 1.204 BFL / f < 0.5 0.189 0.186 0.191 0.190 0.191 TTL / (2ⅹIMG HT) < 0.7 0.687 0.685 0.685 0.685 0.685 FOVⅹIMG HT / f > 60° 70.614° 70.614° 70.717° 70.717° 70.717° Fno ≤ 1.69 1.59 1.59 1.59 1.59 1.59 SWA11 < 25° 19.159° 19.230° 17.312° 17.443° 18.547° SWA21 < 36° 33.721° 33.346° 35.581° 35.742° 35.989° Nv26 <= 3 3 3 3 3 3 35 < v3+v5 < 45 42.73 42.73 38.48 38.48 38.48 4.5 < f1 / f2 < 21 6.995 8.024 20.494 20.210 15.578 0.4 < |f12 / f3| < 0.6 0.594 0.580 0.468 0.468 0.481 0.4 < |f2 / f3| < 0.7 0.656 0.630 0.488 0.489 0.509 0.09 < |f3 / f1| < 0.32 0.218 0.198 0.100 0.101 0.126 conditional expression Example 11 Example 12 Example 13 Example 14 Example 15 0 < f1 / f < 30 7.848 8.216 9.015 5.524 5.418 0 < f² / f < 3 0.880 0.877 0.868 0.917 0.930 -3 < f3 / f < 0 -1.420 -1.428 -1.430 -1.403 -1.421 -1 < f4 / f / 100 < 0.5 -0.715 -0.728 -0.726 0.034 0.032 -0.5 < f5 / f / 100 < 1 0.050 0.055 0.057 -0.085 -0.077 -2 < f6 / f / 100 < 1.5 0.731 -1.611 0.731 -0.096 -0.097 -0.5 < f7 / f / 15 -0.054 0.731 0.731 -0.178 -0.132 -1 < f8 / f / 100 < 0.5 0.012 0.015 0.016 0.012 0.012 -3 < f9 / f < 0 -0.918 -0.931 -0.940 -0.832 -0.870 v1-v3 < 45 32.5 32.5 32.5 32.5 32.5 v1-v5 < 45 36.75 36.75 36.75 36.75 36.75 TTL / f < 1.5 1.202 1.202 1.202 1.204 1.202 BFL / f < 0.5 0.171 0.170 0.168 0.168 0.185 TTL / (2ⅹIMG HT) < 0.7 0.685 0.685 0.685 0.685 0.685 FOVⅹIMG HT / f > 60° 70.614° 70.614° 70.614° 70.717° 70.605° Fno ≤ 1.69 1.59 1.59 1.59 1.49 1.69 SWA11 < 25° 19.264° 19.281° 19.309° 20.181° 19.045° SWA21 < 36° 33.366° 33.538° 33.511° 34.613° 33.395° Nv26 <= 3 3 3 3 3 3 35 < v3+v5 < 45 42.73 42.73 42.73 42.73 42.73 4.5 < f1 / f2 < 21 8.917 9.367 10,380 6.027 5.827 0.4 < |f12 / f3| < 0.6 0.577 0.575 0.574 0.581 0.578 0.4 < |f2 / f3| < 0.7 0.620 0.614 0.607 0.653 0.654 0.09 < |f3 / f1| < 0.32 0.181 0.174 0.159 0.254 0.262

[0340] Although this disclosure includes specific examples, it will be apparent upon understanding the disclosure of this application that various changes in form and detail may be made in these examples without departing from the spirit and scope of the claims and their equivalents. The description of features or manner in each example should be considered applicable to similar features or manner in other examples. Suitable results may also be achieved if the described technology is implemented in a different order, and / or if components in the described system, architecture, apparatus, or circuit are combined in different ways and / or replaced or supplemented by other components or their equivalents. Therefore, the scope of this disclosure is not defined by the detailed description but by the claims and their equivalents, and all variations within the scope of the claims and their equivalents should be construed as included in this disclosure. [Simplified Explanation of the Diagram]

[0032] FIG1 is a structural diagram of an optical imaging system according to a first embodiment of the present disclosure. FIG2 is a diagram showing the aberration characteristics of the optical imaging system shown in FIG1. ​​FIG3 is a structural diagram of an optical imaging system according to a second embodiment of the present disclosure. FIG4 is a diagram showing the aberration characteristics of the optical imaging system shown in FIG3. FIG5 is a structural diagram of an optical imaging system according to a third embodiment of the present disclosure. FIG6 is a diagram showing the aberration characteristics of the optical imaging system shown in FIG5. FIG7 is a structural diagram of an optical imaging system according to a fourth embodiment of the present disclosure. FIG8 is a diagram showing the aberration characteristics of the optical imaging system shown in FIG7. FIG9 is a structural diagram of an optical imaging system according to a fifth embodiment of the present disclosure. FIG10 is a diagram showing the aberration characteristics of the optical imaging system shown in FIG9. FIG11 is a block diagram of an optical imaging system according to a sixth embodiment of the present disclosure. FIG12 is a diagram showing the aberration characteristics of the optical imaging system shown in FIG11. FIG13 is a structural diagram of an optical imaging system according to a seventh embodiment of the present disclosure. FIG14 is a diagram showing the aberration characteristics of the optical imaging system shown in FIG13. FIG15 is a structural diagram of an optical imaging system according to an eighth embodiment of the present disclosure. Figure 16 is a diagram showing the aberration characteristics of the optical imaging system shown in Figure 15. Figure 17 is a structural diagram of an optical imaging system according to a ninth embodiment of this disclosure. Figure 18 is a diagram showing the aberration characteristics of the optical imaging system shown in Figure 17. Figure 19 is a structural diagram of an optical imaging system according to a tenth embodiment of this disclosure. Figure 20 is a diagram showing the aberration characteristics of the optical imaging system shown in Figure 19. Figure 21 is a block diagram of an optical imaging system according to an eleventh embodiment of this disclosure. Figure 22 is a diagram showing the aberration characteristics of the optical imaging system shown in Figure 21. Figure 23 is a structural diagram of an optical imaging system according to a twelfth embodiment of this disclosure. Figure 24 is a diagram showing the aberration characteristics of the optical imaging system shown in Figure 23. Figure 25 is a structural diagram of an optical imaging system according to a thirteenth embodiment of this disclosure. Figure 26 is a diagram showing the aberration characteristics of the optical imaging system shown in Figure 25. Figure 27 is a block diagram of an optical imaging system according to a fourteenth embodiment of this disclosure. Figure 28 is a diagram showing the aberration characteristics of the optical imaging system shown in Figure 27. Figure 29 is a structural diagram of an optical imaging system according to a fifteenth embodiment of this disclosure. Figure 30 is a diagram illustrating the aberration characteristics of the optical imaging system shown in Figure 29. Figure 31 shows the sweep angle at a specific location on the object-side surface of the lens. Throughout all figures and detailed descriptions, the same reference numerals refer to the same elements. The figures may not be drawn to scale, and for clarity, illustrative purposes, the relative size, scale, and depiction of elements in the figures may be exaggerated.

Claims

1. An optical imaging system, comprising: 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 are arranged sequentially along the optical axis of the optical imaging system from the object side of the optical imaging system toward the imaging surface of the optical imaging system in ascending numerical order. The first lens has a positive refractive power, the second lens has a positive refractive power, and the third lens has a negative refractive power. The optical imaging system has a total of nine lenses, satisfying 0 < f1 / f < 30, 0 < f2 / f < 3, -3 < f3 / f < 0, and 35 < v3 + v5 < 45. Here, f1 is the focal length of the first lens, f2 is the focal length of the second lens, f3 is the focal length of the third lens, f is the total focal length of the optical imaging system, v3 is the Abbe number of the third lens, and v5 is the Abbe number of the fifth lens. Furthermore, two of the lenses from the fifth to the seventh have a refractive index greater than 1.61 and an Abbe number less than 26.

2. The optical imaging system as claimed in claim 1, wherein one or both of v1-v3 < 45 and v1-v5 < 45 are satisfied, wherein v1 is the Abbe number of the first lens.

3. The optical imaging system as claimed in claim 1, wherein 0.4 < |f12 / f3| < 0.6, where f12 is the composite focal length of the first lens and the second lens.

4. The optical imaging system as claimed in claim 1, wherein 4.5 < f1 / f2 < 21.

5. The optical imaging system as claimed in claim 1, wherein 0.4 < |f2 / f3| < 0.

7.

6. The optical imaging system as claimed in claim 1, wherein 0.09 < |f3 / f1| < 0.

32.

7. The optical imaging system of claim 1, wherein TTL / f < 1.5 and BFL / f < 0.5, wherein TTL is the distance along the optical axis from the object-side surface of the first lens to the imaging surface, and BFL is the distance along the optical axis from the image-side surface of the ninth lens to the imaging surface.

8. The optical imaging system of claim 1, wherein FOV×IMG HT / f > 60°, where FOV is the field of view of the optical imaging system and IMG HT is half the diagonal length of the imaging surface.

9. The optical imaging system of claim 1, wherein TTL / (2×IMG HT) < 0.7, wherein TTL is the distance along the optical axis from the object-side surface of the first lens to the imaging surface, and IMG HT is half the diagonal length of the imaging surface.

10. The optical imaging system as claimed in claim 1, wherein Fno ≤ 1.69, where Fno is the F-number of the optical imaging system.

11. The optical imaging system of claim 1, wherein SWA11 < 25° and SWA21 < 36° or both, wherein SWA11 is the sweep angle at the end of the effective diameter of the object-side surface of the first lens, and SWA21 is the sweep angle at the end of the effective diameter of the object-side surface of the second lens.

12. The optical imaging system of claim 1, wherein the Abbe number of the third lens is less than the Abbe number of the first lens and less than the Abbe number of the second lens.

13. The optical imaging system of claim 1, wherein the sum of the Abbe number of the third lens and the Abbe number of the fifth lens is less than the Abbe number of the fourth lens.

14. The optical imaging system of claim 1, wherein each of the first lens and the second lens has an Abbe number greater than 54 and less than 57, and the third lens has the Abbe number greater than 18 and less than 24.

15. The optical imaging system of claim 1, wherein the fifth lens has a refractive index greater than 1.64 and an Abbe number less than 21.

16. The optical imaging system of claim 1, wherein the Abbe number of the seventh lens is less than the Abbe number of the eighth lens and less than the Abbe number of the ninth lens.

17. The optical imaging system of claim 1, wherein the focal length of the second lens is less than the absolute value of the focal length of the third lens, and the absolute value of the focal length of the third lens is less than the focal length of the first lens.

18. The optical imaging system of claim 1, wherein each of the first to third lenses is convex in the paraxial region of its object-side surface and concave in the paraxial region of its image-side surface.

19. The optical imaging system of claim 1, wherein the ninth lens has a negative refractive power, is convex in the paraxial region of its object-side surface, and is concave in the paraxial region of its image-side surface.

Images