Optical imaging system

Abstract

An optical imaging system includes, in order along an optical axis of the optical imaging system from an object side of the optical imaging system toward an image plane of the optical imaging system, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens; and a spacer ring disposed between the sixth lens and the seventh lens, wherein the optical imaging system satisfies 0.5 < S6d / f < 1.4, where S6d is an inner diameter of the spacer ring, f is a total focal length of the optical imaging system, and S6d and f are expressed in the same unit of measurement.

Description

[0001] This application is a divisional application of a Chinese patent application with an application date of May 28, 2019 and an application number of 201910453471.0.

[0002] Cross - reference to related applications

[0003] This application claims the benefit of the priority of Korean Patent Application No. 10 - 2018 - 0061409, filed on May 29, 2018, and Korean Patent Application No. 10 - 2018 - 0106170, filed on September 5, 2018, with the Korean Intellectual Property Office, and the entire disclosure of the above Korean patent applications is incorporated herein by reference for all purposes. Technical field

[0004] This application relates to an optical imaging system. Background art

[0005] Recently, mobile communication terminals have been equipped with camera modules, making video calls and image taking possible. In addition, as the utilization rate of the camera modules installed in mobile communication terminals increases, there is a growing demand for camera modules for mobile communication terminals to have high resolution and high performance.

[0006] Therefore, the number of lenses included in the camera module has increased. However, since the mobile communication terminals equipped with camera modules tend to be miniaturized, it is difficult to arrange the lenses in the camera module.

[0007] Therefore, technologies that can perform aberration correction to achieve high resolution and arrange multiple lenses in a limited space are being studied. Summary of the invention

[0008] The Summary of the Invention section is intended to introduce, in a brief form, a selection of inventive concepts, which will be further described in the Detailed Description section below. The Summary of the Invention section is not intended to identify the key features or essential features of the claimed subject matter, nor is it intended to assist in determining the scope of the claimed subject matter.

[0009] In one general aspect, an optical imaging system includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens sequentially arranged in numerical order 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; and a spacer disposed between the sixth lens and the seventh lens, wherein the optical imaging system satisfies 0.5 < S6d / f < 1.4, where S6d is the inner diameter of the spacer and f is the total focal length of the optical imaging system, and S6d and f are expressed in the same measurement unit.

[0010] The optical imaging system can also satisfy 0.5 < S6d / f < 1.2.

[0011] The optical imaging system can also satisfy 0.1 < L1w / L7w < 0.3, where L1w is the weight of the first lens, L7w is the weight of the seventh lens, and L1w and L7w are expressed in the same measurement unit.

[0012] The optical imaging system can also satisfy 0.4 < L1TR / L7TR < 0.7, where L1TR is the total outer diameter of the first lens, L7TR is the total outer diameter of the seventh lens, and L1TR and L7TR are expressed in the same measurement unit.

[0013] The optical imaging system can also satisfy 0.5 < L1234TRavg / L7TR < 0.75, where L1234TRavg is the average of the total outer diameters of the first to the fourth lenses, L7TR is the total outer diameter of the seventh lens, and L1234TRavg and L7TR are expressed in the same measurement unit.

[0014] The optical imaging system can also satisfy 0.5 < L12345TRavg / L7TR < 0.76, where L12345TRavg is the average of the total outer diameters of the first to the fifth lenses, L7TR is the total outer diameter of the seventh lens, and L12345TRavg and L7TR are expressed in the same measurement unit.

[0015] The optical imaging system can also satisfy 0.1 < (1 / f1 + 1 / f2 + 1 / f3 + 1 / f4 + 1 / f5 + 1 / f6 + 1 / f7) * f < 0.8, where 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, f is the total focal length of the optical imaging system, and f1, f2, f3, f4, f5, f6, f7 and f are expressed in the same measurement unit.

[0016] The optical imaging system can also satisfy 0.1 < (1 / f1 + 1 / f2 + 1 / f3 + 1 / f4 + 1 / f5 + 1 / f6 + 1 / f7) * TTL < 1.0, where 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, TTL is the distance along the optical axis from the object side of the first lens to the imaging surface, and f1, f2, f3, f4, f5, f6, f7 and TTL are expressed in the same measurement unit.

[0017] The optical imaging system can also satisfy 0.2 < TD1 / D67 < 0.8, where TD1 is the thickness of the first lens along the optical axis, D67 is the distance along the optical axis from the object side of the sixth lens to the image side of the seventh lens, and TD1 and D67 are expressed in the same unit of measurement.

[0018] The imaging surface can be the imaging surface of an image sensor, and the optical imaging system can also satisfy TTL ≤ 6.00 mm and 0.6 < TTL / (2*Img HT) < 0.9, where TTL is the distance along the optical axis from the object side of the first lens to the imaging surface of the image sensor, Img HT is half of the diagonal length of the imaging surface of the image sensor, and TTL and Img HT are expressed in mm.

[0019] The optical imaging system can also satisfy 0.2 < ΣSD / ΣTD < 0.7, where ΣSD is the sum of the air gaps along the optical axis between the first lens and the seventh lens, ΣTD is the sum of the thicknesses of the first lens to the seventh lens along the optical axis, and ΣSD and ΣTD are expressed in the same unit of measurement.

[0020] The optical imaging system can also satisfy 0 < min(f1:f3) / max(f4:f7) < 0.4, where min(f1:f3) is the minimum of the absolute values of the focal lengths of the first lens to the third lens, max(f4:f7) is the maximum of the absolute values of the focal lengths of the fourth lens to the seventh lens, and min(f1:f3) and max(f4:f7) are expressed in the same unit of measurement.

[0021] The optical imaging system can also satisfy 0.4 < ΣTD / TTL < 0.7, where ΣTD is the sum of the thicknesses of the first lens to the seventh lens along the optical axis, TTL is the distance along the optical axis from the object side of the first lens to the imaging surface, and ΣTD and TTL are expressed in the same unit of measurement.

[0022] The optical imaging system can also satisfy 0.81 < f12 / f123 < 0.96, where f12 is the combined focal length of the first lens and the second lens, f123 is the combined focal length of the first lens to the third lens, and f12 and f​123 are expressed in the same unit of measurement.

[0023] The optical imaging system can also satisfy 0.6 < f12 / f1234 < 0.84, where f12 is the combined focal length of the first lens and the second lens, f1234 is the combined focal length of the first lens to the fourth lens, and f12 and f1234 are expressed in the same unit of measurement.

[0024] The second lens can have positive refractive power, or the third lens can have positive refractive power.

[0025] The fifth lens may have negative refractive power, and the paraxial region on the object side of the fifth lens may be concave or convex.

[0026] The fifth lens may have negative refractive power, and the paraxial region on the image side of the fifth lens may be concave or convex.

[0027] The paraxial region on the object side of the sixth lens can be concave or convex.

[0028] The paraxial region of the object side of the seventh lens can be concave.

[0029] Other features and aspects will become apparent from the following detailed description, drawings and claims. Attached Figure Description

[0030] Figure 1 This is a view showing a first example of an optical imaging system.

[0031] Figure 2 It shows Figure 1 Aberration curves of optical imaging systems.

[0032] Figure 3 This is a view showing a second example of an optical imaging system.

[0033] Figure 4 It shows Figure 3 Aberration curves of optical imaging systems.

[0034] Figure 5 This is a view showing a third example of an optical imaging system.

[0035] Figure 6 It shows Figure 5 Aberration curves of optical imaging systems.

[0036] Figure 7 This is a view showing a fourth example of an optical imaging system.

[0037] Figure 8 It shows Figure 7 Aberration curves of optical imaging systems.

[0038] Figure 9 This is a view showing the fifth example of an optical imaging system.

[0039] Figure 10 It shows Figure 9 Aberration curves of optical imaging systems.

[0040] Figure 11 This is a view showing the sixth example of an optical imaging system.

[0041] Figure 12 It shows Figure 11Aberration curves of optical imaging systems.

[0042] Figure 13 This is a view showing the seventh example of an optical imaging system.

[0043] Figure 14 It shows Figure 13 Aberration curves of optical imaging systems.

[0044] Figure 15 This is a view showing the eighth example of an optical imaging system.

[0045] Figure 16 It shows Figure 15 Aberration curves of optical imaging systems.

[0046] Figure 17 This is a view showing the ninth example of an optical imaging system.

[0047] Figure 18 It shows Figure 17 Aberration curves of optical imaging systems.

[0048] Figure 19 This is a view showing the tenth example of an optical imaging system.

[0049] Figure 20 It shows Figure 19 Aberration curves of optical imaging systems.

[0050] Figure 21 This is a view showing the eleventh example of an optical imaging system.

[0051] Figure 22 It shows Figure 21 Aberration curves of optical imaging systems.

[0052] Figure 23 This is a view showing the twelfth example of an optical imaging system.

[0053] Figure 24 It shows Figure 23 Aberration curves of optical imaging systems.

[0054] Figure 25 This is a view showing the thirteenth example of an optical imaging system.

[0055] Figure 26 It shows Figure 25 Aberration curves of optical imaging systems.

[0056] Figure 27 This is a view showing the fourteenth example of an optical imaging system.

[0057] Figure 28 It shows Figure 27 Aberration curves of optical imaging systems.

[0058] Figure 29 This is a view showing the fifteenth example of an optical imaging system.

[0059] Figure 30 It shows Figure 29 Aberration curves of optical imaging systems.

[0060] Figure 31 This is a view showing the sixteenth example of an optical imaging system.

[0061] Figure 32 It shows Figure 31 Aberration curves of optical imaging systems.

[0062] Figure 33 This is a view showing the seventeenth example of an optical imaging system.

[0063] Figure 34 It shows Figure 33 Aberration curves of optical imaging systems.

[0064] Figure 35 This is a view showing the eighteenth example of an optical imaging system.

[0065] Figure 36 It shows Figure 35 Aberration curves of optical imaging systems.

[0066] Figure 37 This is a view showing the nineteenth example of an optical imaging system.

[0067] Figure 38 It shows Figure 37 Aberration curves of optical imaging systems.

[0068] Figure 39 This is a view showing the twentieth example of an optical imaging system.

[0069] Figure 40 It shows Figure 39 Aberration curves of optical imaging systems.

[0070] Figure 41 This is a view showing the twenty-first example of an optical imaging system.

[0071] Figure 42 It shows Figure 41 Aberration curves of optical imaging systems.

[0072] Figure 43 This is a view showing the twenty-second example of an optical imaging system.

[0073] Figure 44 It shows Figure 43 Aberration curves of optical imaging systems.

[0074] Figure 45 This is a view showing the twenty-third example of an optical imaging system.

[0075] Figure 46 It shows Figure 45 Aberration curves of optical imaging systems.

[0076] Figure 47 This is a view showing the twenty-fourth example of an optical imaging system.

[0077] Figure 48 It shows Figure 47 Aberration curves of optical imaging systems.

[0078] Figure 49 This is a view showing the twenty-fifth example of an optical imaging system.

[0079] Figure 50 It shows Figure 49 Aberration curves of optical imaging systems.

[0080] Figure 51 This is a view showing the twenty-sixth example of an optical imaging system.

[0081] Figure 52 It shows Figure 51 Aberration curves of optical imaging systems.

[0082] Figure 53 This is a view showing the twenty-seventh example of an optical imaging system.

[0083] Figure 54 It shows Figure 53 Aberration curves of optical imaging systems.

[0084] Figure 55 and Figure 56 This is a cross-sectional view showing an example of an optical imaging system and lens barrel connected to each other.

[0085] Figure 57 This is a cross-sectional view showing an example of the shape of the ribs of a lens.

[0086] Figure 58 This is a cross-sectional view showing an example of the seventh lens.

[0087] Throughout all the accompanying drawings and detailed descriptions, the same reference numerals refer to the same elements. For purposes of clarity, illustration, and convenience, the drawings may not be drawn to scale, and the relative dimensions, scale, and depiction of elements in the drawings may be exaggerated. Detailed Implementation

[0088] The following detailed description is provided to help the reader gain a full understanding of the methods, apparatus, and / or systems described in this application. However, after understanding the disclosure of this application, various changes, modifications, and equivalents of the methods, apparatus, and / or systems described in this application will be apparent. For example, the order of operations described in this application is merely illustrative, and is not limited to the order set forth in this application, except for operations that must occur in a specific order, but can be obviously changed after understanding the disclosure of this application. In addition, for clarity and conciseness, descriptions of features well-known in the art may be omitted.

[0089] The features described in this application may be implemented in various 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 feasible ways of implementing the methods, apparatus, and / or systems described herein, which will be apparent upon understanding the disclosure of this application.

[0090] Throughout this specification, when an element such as a layer, region, or substrate is described as being "on," "connected to," or "attached to" another element, the element may be directly "on," directly "connected to," or directly "attached to" the other element, or there may be one or more other elements between the element and the other element. Conversely, when an element is described as being "directly on," "directly connected to," or "directly attached to" another element, there may be no other elements between the element and the other element.

[0091] As used in this application, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.

[0092] Although terms such as “first,” “second,” and “third” may be used in this application to describe various components, parts, regions, layers, or portions, these components, parts, regions, layers, or portions are not limited by these terms. Rather, these terms are used only to distinguish one component, part, region, layer, or portion from another. Therefore, without departing from the teachings of the examples described in this application, the first component, first part, first region, first layer, or first portion mentioned in these examples may also be referred to as a second component, second part, second region, second layer, or second portion.

[0093] Spatial relative terms such as “above,” “above,” “below,” and “below” may be used in this application for descriptive convenience to describe the relationship of one element relative to another, as shown in the accompanying drawings. In addition to covering the orientation depicted in the drawings, these spatial relative terms are intended to also cover different orientations of the device in use or operation. For example, if the device in the drawings is flipped, an element described as being “above” or “above” another element would be located “below” or “below” that other element. Thus, depending on the spatial orientation of the device, the term “above” covers both “above” and “below” orientations. The device may also be oriented in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relative terms used in this application should be interpreted accordingly.

[0094] The terminology used in this application is for describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the articles “a,” “an,” and “the” are intended to include the plural form as well. The terms “comprising,” “including,” and “having” indicate the presence of 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.

[0095] For ease of explanation, the thickness, size, and shape of the lenses shown in the accompanying drawings may be slightly exaggerated. Furthermore, the shapes of the spherical or aspherical surfaces of the lenses described in the detailed description and shown in the accompanying drawings are merely examples. That is, the shapes of the spherical or aspherical surfaces of the lenses are not limited to the examples described in this application.

[0096] The radius of curvature, lens thickness, distances between elements including the lens or surface, effective radius of the lens, diameter, thickness, and length of various elements are expressed in millimeters (mm), while angles are expressed in degrees. The lens thickness and the distances between elements including the lens or surface are measured along the optical axis of the optical imaging system.

[0097] As used in this application, the term "effective half-aperture" refers to the radius of the portion of the surface (object-side or image-side) through which light actually passes. The effective half-aperture is equal to the straight-line distance between the optical axis of the surface and the outermost point on the surface through which light actually passes. Therefore, the effective half-aperture can be equal to the radius of the optical portion of the lens, or it can be smaller than the radius of the optical portion of the lens if light does not pass through the edge portion of the lens's optical portion. The object-side and image-side of the lens may have different effective half-apertures.

[0098] In this application, unless otherwise stated, references to the shape of a lens surface refer to the shape of the paraxial region of the lens. The paraxial region of the lens surface is the central portion of the lens surface surrounding the optical axis of the lens surface, wherein light rays incident on the lens surface form a small angle θ with the optical axis, and the following approximations are valid: sinθ≈θ, tanθ≈θ, and cosθ≈1.

[0099] For example, the description of a lens's object-side surface being convex means that at least the paraxial region of the lens's object-side surface is convex, and the description of a lens's image-side surface being concave means that at least the paraxial region of the lens's image-side surface is concave. Therefore, even if the object-side surface of a lens can be described as convex, the entire object-side surface of the lens may not be convex, and the edge region of the object-side surface of the lens may be concave. Similarly, even if the image-side surface of a lens can be described as concave, the entire image-side surface of the lens may not be concave, and the edge region of the image-side surface of the lens may be convex.

[0100] Figure 55 and Figure 56 This is a cross-sectional view showing an example of an optical imaging system and lens barrel connected to each other.

[0101] refer to Figure 55 and Figure 56 The optical imaging system 100 includes a plurality of lenses arranged along the optical axis. Additionally, the optical imaging system 100 includes a lens barrel 200 therein housing the plurality of lenses. The plurality of lenses are spaced apart from each other at a predetermined distance along the optical axis.

[0102] Each lens in an optical imaging system comprises an optical portion and ribs. The optical portion of the lens refracts light and is typically formed in the central part of the lens. The ribs are the edge portions of the lens that allow the lens to be mounted in a lens barrel and for the optical axis of the lens to be aligned with the optical axis of the optical imaging system. The ribs extend radially outward from the optical portion and can be integrally formed with the optical portion. The optical portions of the lenses typically do not contact each other. For example, the first through seventh lenses are mounted in a lens barrel such that they are spaced apart from each other by a predetermined distance along the optical axis of the optical imaging system. The ribs of the lenses can selectively contact each other. For example, the ribs of the first through fourth lenses, the first through fifth lenses, or the second through fourth lenses can contact each other so that the optical axes of these lenses can be easily aligned with the optical axis of the optical imaging system.

[0103] Examples of the optical imaging system 100 described in this application include, for example: Figure 55 and Figure 56 The self-aligned structure shown.

[0104] exist Figure 55In one example shown, the optical imaging system 100 includes a self-aligning structure in which the optical axes of four consecutive lenses 1000, 2000, 3000 and 4000 are aligned with the optical axis of the optical imaging system 100 by connecting them to each other.

[0105] A first lens 1000, located closest to the object side of the optical imaging system 100, is configured to contact the inner surface of the lens barrel 200, aligning the optical axis of the first lens 100 with the optical axis of the optical imaging system 100. A second lens 2000 is connected to the first lens 1000, aligning its optical axis with the optical axis of the optical imaging system 100. A third lens 3000 is connected to the second lens 2000, aligning its optical axis with the optical axis of the optical imaging system 100. A fourth lens 4000 is connected to the third lens 3000, aligning its optical axis with the optical axis of the optical imaging system 100. The second to fourth lenses 2000 may be configured not to contact the inner surface of the lens barrel 200.

[0106] although Figure 55 The diagram shows that the first lens 1000 to the fourth lens 4000 are connected to each other, but the four consecutive lenses connected to each other can be changed to the second lens 2000 to the fifth lens 5000, the third lens 3000 to the sixth lens 6000, or the fourth lens 4000 to the seventh lens 7000.

[0107] exist Figure 56 In another example shown, the optical imaging system 100 includes a self-aligning structure in which the optical axes of five consecutive lenses 1000, 2000, 3000, 4000 and 5000 are aligned with the optical axis of the optical imaging system 100 by connecting them to each other.

[0108] A first lens 1000, located closest to the object side of the optical imaging system 100, is configured to contact the inner surface of the lens barrel 200, aligning the optical axis of the first lens 100 with the optical axis of the optical imaging system 100. A second lens 2000 is connected to the first lens 1000, aligning its optical axis with the optical axis of the optical imaging system 100. A third lens 3000 is connected to the second lens 2000, aligning its optical axis with the optical axis of the optical imaging system 100. A fourth lens 4000 is connected to the third lens 3000, aligning its optical axis with the optical axis of the optical imaging system 100. A fifth lens 5000 is connected to the fourth lens 4000, aligning its optical axis with the optical axis of the optical imaging system 100. The second to fifth lenses 2000 may be configured not to contact the inner surface of the lens barrel 200.

[0109] although Figure 56 The diagram shows that the first lens 1000 to the fifth lens 5000 are connected to each other, but the five consecutive lenses connected to each other can be changed to the second lens 2000 to the sixth lens 6000 or the third lens 3000 to the seventh lens 7000.

[0110] The first lens 1000 is the lens closest to the object (or target), while the seventh lens 7000 is the lens closest to the image sensor. Figure 55 and Figure 56 Not shown in the text, but see, for example, see Figure 1 The lens of the image sensor 190 in the image sensor.

[0111] In addition, the object-side surface of a lens is the surface of the lens facing the object, while the image-side surface of a lens is the surface of the lens facing the image sensor.

[0112] An example of the optical imaging system 100 disclosed in this application includes seven lenses.

[0113] For example, refer to Figure 55 and Figure 56 The optical imaging system 100 includes a first lens 1000, a second lens 2000, a third lens 3000, a fourth lens 4000, a fifth lens 5000, a sixth lens 6000, and a seventh lens 7000 arranged in numerical order from the object side of the optical imaging system 100 toward the image side of the optical imaging system 100.

[0114] The optical imaging system 100 also includes an image sensor and a filter. The image sensor forms an imaging surface and converts the light refracted by the first lens to the seventh lens into electrical signals. The filter is disposed between the lens and the imaging surface and blocks infrared light from the light refracted by the first lens to the seventh lens from entering the imaging surface.

[0115] In addition, the optical imaging system 100 also includes an aperture stop to adjust the amount of light incident on the imaging surface. For example, the aperture stop may be disposed between the first lens 1000 and the second lens 2000, or between the second lens 2000 and the third lens 3000. The aperture stop may be disposed relatively close to the first lens 1000 to reduce the total length (TTL) of the optical imaging system 100.

[0116] exist Figure 55 and Figure 56 In the example shown, spacers are positioned between each pair of adjacent lenses. At least a portion of the rib of each lens contacts one or two spacers. The spacers maintain the spacing between the lenses and block stray light from reaching the imaging plane.

[0117] The spacers include a first spacer SP1, a second spacer SP2, a third spacer SP3, a fourth spacer SP4, a fifth spacer SP5, and a sixth spacer SP6 disposed from the object side of the optical imaging system 100 toward the image sensor. In some examples, the spacers also include a seventh spacer SP7.

[0118] The first spacer SP1 is disposed between the first lens 1000 and the second lens 2000; the second spacer SP2 is disposed between the second lens 2000 and the third lens 3000; the third spacer SP3 is disposed between the third lens 3000 and the fourth lens 4000; the fourth spacer SP4 is disposed between the fourth lens 4000 and the fifth lens 5000; the fifth spacer SP5 is disposed between the fifth lens 5000 and the sixth lens 6000; and the sixth spacer SP6 is disposed between the sixth lens 6000 and the seventh lens 7000. When the seventh spacer SP7 is included, it is disposed between the sixth spacer SP6 and the sixth lens 6000. The thickness of the seventh spacer SP7 in the optical axis direction can be greater than the thickness of the sixth spacer SP6 in the optical axis direction.

[0119] The first lens has positive or negative refractive power. Additionally, the first lens may have a meniscus shape with a convex object-side surface. Specifically, the object-side surface of the first lens may be convex, and the image-side surface of the first lens may be concave.

[0120] At least one of the object-side and image-side surfaces of the first lens may be aspherical. For example, both surfaces of the first lens may be aspherical.

[0121] The second lens has either positive or negative refractive power. Additionally, the second lens may have a meniscus shape with a convex object-side surface. Specifically, the object-side surface of the second lens may be convex, and the image-side surface of the second lens may be concave.

[0122] Optionally, both surfaces of the second lens may protrude. Specifically, the object-side surface and the image-side surface of the second lens may protrude.

[0123] At least one of the object-side and image-side surfaces of the second lens can be aspherical. For example, both surfaces of the second lens can be aspherical.

[0124] The third lens has either positive or negative refractive power. Additionally, the third lens may have a meniscus shape with a convex object-side surface. Specifically, the object-side surface of the third lens may be convex, and the image-side surface may be concave.

[0125] Optionally, two surfaces of the third lens may protrude. Specifically, the object-side surface and the image-side surface of the third lens may protrude.

[0126] Optionally, the third lens may have a crescent shape with a convex image side. Specifically, the object side of the third lens may be concave, and the image side of the third lens may be convex.

[0127] At least one of the object-side and image-side surfaces of the third lens can be aspherical. For example, both surfaces of the third lens can be aspherical.

[0128] The fourth lens has either positive or negative refractive power. Additionally, the fourth lens may have a meniscus shape with a convex object-side surface. Specifically, the object-side surface of the fourth lens may be convex, and the image-side surface may be concave.

[0129] Optionally, two surfaces of the fourth lens may protrude. Specifically, the object-side surface and the image-side surface of the fourth lens may protrude.

[0130] Optionally, the fourth lens may have a crescent shape with a convex image side. Specifically, the object side of the fourth lens may be concave, and the image side of the fourth lens may be convex.

[0131] At least one of the object-side and image-side surfaces of the fourth lens may be aspherical. For example, both surfaces of the fourth lens may be aspherical.

[0132] The fifth lens has either positive or negative refractive power. Additionally, the fifth lens may have a meniscus shape with a convex object-side surface. Specifically, the object-side surface of the fifth lens may be convex, and the image-side surface may be concave.

[0133] Optionally, the fifth lens may have a crescent shape with a convex image side. Specifically, the object side of the fifth lens may be concave, and the image side of the fifth lens may be convex.

[0134] At least one of the object-side and image-side surfaces of the fifth lens may be aspherical. For example, both surfaces of the fifth lens may be aspherical.

[0135] The sixth lens has either positive or negative refractive power. Additionally, the sixth lens may have a meniscus shape with a convex object-side surface. Specifically, the object-side surface of the sixth lens may be convex, and the image-side surface of the sixth lens may be concave.

[0136] Optionally, both surfaces of the sixth lens may protrude. Specifically, the object-side surface and the image-side surface of the sixth lens may protrude.

[0137] Optionally, the sixth lens may have a crescent shape with a convex image side. Specifically, the object side of the sixth lens may be concave, and the image side of the sixth lens may be convex.

[0138] Optionally, both surfaces of the sixth lens can be concave. Specifically, the object-side surface and the image-side surface of the sixth lens can be concave.

[0139] At least one of the object-side and image-side surfaces of the sixth lens may be aspherical. For example, both surfaces of the sixth lens may be aspherical.

[0140] The seventh lens has either positive or negative refractive power. Additionally, the seventh lens may have a meniscus shape with a convex object-side surface. Specifically, the object-side surface of the seventh lens may be convex, and the image-side surface may be concave.

[0141] Optionally, both surfaces of the seventh lens can be concave. Specifically, the object-side surface and the image-side surface of the seventh lens can be concave.

[0142] At least one of the object-side and image-side surfaces of the seventh lens may be aspherical. For example, both surfaces of the seventh lens may be aspherical.

[0143] Additionally, at least one inflection point may be formed on at least one of the object-side and image-side surfaces of the seventh lens. An inflection point is a point on the lens surface where the surface changes from convex to concave or from concave to convex. The number of inflection points is counted from the center of the lens to the outer edge of the optical portion of the lens. For example, the object-side surface of the seventh lens may be convex in the paraxial region and become concave towards the edge of the object-side surface of the seventh lens. The image-side surface of the seventh lens may be concave in the paraxial region and become convex towards the edge of the image-side surface of the seventh lens.

[0144] Figure 57 This is a cross-sectional view showing an example of the shape of the ribs of a lens.

[0145] Light reflected from an object can be refracted by lenses from the first to the seventh lens. In this case, unintended reflections of light may occur. Unintended reflections of light (which are light unrelated to image formation) may cause flickering in the captured image.

[0146] Examples of the optical imaging system 100 described in this application may include structures for preventing flickering and reflections.

[0147] For example, such as Figure 57 As shown, the rib of the seventh lens 7000, which is closest to the image sensor, includes a surface-treated region EA. The surface-treated region EA is a portion of the rib's surface that is processed to be rougher than the rest of the rib's surface. For example, the surface-treated region EA can be formed by chemical etching, physical polishing, or any other surface treatment method. The surface-treated region EA scatters and reflects light.

[0148] Therefore, even if unintended reflection of light may occur, it can prevent the reflected light from concentrating at a single point, and thus suppress flickering.

[0149] The surface-treated area EA can be formed over the entire area from the edge of the optical portion of the lens to the end of the rib, where light actually passes through the optical portion. However, as... Figure 57 As shown, the untreated region NEA, including the recessed portions E11, E21, and E22, may not undergo surface treatment, or it may undergo surface treatment to have a roughness different from that of the surface-treated region EA. When viewed along the optical axis, the first untreated region NEA formed on one surface of the lens and the second untreated region NEA formed on the other surface of the lens may overlap.

[0150] The width G1 of the first unprocessed region NEA formed on one surface of the lens can be different from the width G2 of the second unprocessed region NEA formed on the other surface of the lens. Figure 57 In the example shown, G1 is greater than G2.

[0151] A first unprocessed region NEA with width G1 includes a first recessed portion E11, and a second unprocessed region NEA with width G2 includes a second recessed portion E21 and a third recessed portion E22. The distance G4 from the end of the rib to the second recessed portion E21 is less than the distance G3 from the end of the rib to the first recessed portion E11. Furthermore, the distance G5 from the end of the rib to the third recessed portion E22 is less than the distance G3 from the end of the rib to the first recessed portion E11.

[0152] As described above and as Figure 57 The positions of the untreated region NEA and the recessed portions E11, E21, and E22 shown can be helpful in measuring the concentricity of the lens.

[0153] Lenses in an optical imaging system can be made of optical materials with high light transmittance. For example, the first through seventh lenses can be made of plastic. However, the materials used for the first through seventh lenses are not limited to plastic.

[0154] In addition, multiple lenses may have at least one aspherical surface. That is, at least one of the object side and the image side of all the lenses from the first lens to the seventh lens may be aspherical. The aspherical surfaces of the first lens to the seventh lens can be represented by Equation 1 below:

[0155]

[0156] In Equation 1, c is the curvature of the lens surface and is equal to the reciprocal of the radius of curvature of the lens surface at the optical axis of the lens surface, K is the conic constant, Y is the distance from a certain point on the aspherical surface of the lens in the direction perpendicular to the optical axis to the optical axis of the lens, A to H are aspherical constants, and Z (or sag) is the distance between a certain point on the aspherical surface of the lens where the distance to the optical axis is Y and the tangent plane perpendicular to the optical axis that intersects the vertex of the aspherical surface of the lens. Some examples disclosed in the present application include the aspherical constant J. The additional term JY ,

[0161] ,

[0162] ,

[0159] ,

[0160] ,

[0163] ,

[0164] ,

[0158] , , , , , , can be added to Equation 1 to reflect the influence of the aspherical constant J.

[0157] The optical imaging system may satisfy one or more of the following conditional expressions 1 to 5:

[0158] 0.1 < L1w / L7w < 0.4 (Conditional Expression 1)

[0159] 0.5 < S6d / f < 1.4 (Conditional Expression 2)

[0160] 0.4 < L1TR / L7TR < 1.9 (Conditional Expression 3)

[0161] 0.5 < L1234TRavg / L7TR < 0.9 (Conditional Expression 4)

[0162] 0.5 < L12345TRavg / L7TR < 0.9 (Conditional Expression 5)

[0163] In the above conditional expressions, L1w is the weight of the first lens, L7w is the weight of the seventh lens, S6d is the inner diameter of the sixth spacer ring, f is the total focal length of the optical imaging system, L1TR is the total outer diameter of the first lens, L7TR is the total outer diameter of the seventh lens, L1234TRavg is the average value of the total outer diameters of the first lens to the fourth lens, and L12345TRavg is the average value of the total outer diameters of the first lens to the fifth lens. The total outer diameter of the lens is the diameter of the lens (including the optical part of the lens and the ribs of the lens).

[0164] Condition expression 1 is a condition expression related to the weight ratio between the first lens and the seventh lens, and when condition expression 1 is satisfied, the optical axes can be easily aligned with each other through the contact between the lenses and the contact between the lens and the lens barrel.

[0165] Condition expression 2 is a condition expression related to the ratio between the inner diameter of the sixth spacer ring (set between the sixth lens and the seventh lens) and the total focal length of the optical imaging system, and when condition expression 2 is satisfied, the scintillation phenomenon caused by the unexpected reflection of light can be suppressed.

[0166] Condition expression 3 is a condition expression related to the ratio between the total outer diameter of the first lens and the total outer diameter of the seventh lens, and when condition expression 3 is satisfied, the optical axes can be easily aligned with each other through the contact between the lenses and the contact between the lens and the lens barrel.

[0167] Condition expression 4 is a condition expression related to the ratio between the average value of the total outer diameters of the first lens to the fourth lens and the total outer diameter of the seventh lens, and when condition expression 4 is satisfied, the aberration can be easily corrected to improve the resolution.

[0168] Condition expression 5 is a condition expression related to the ratio between the average value of the total outer diameters of the first lens to the fifth lens and the total outer diameter of the seventh lens, and when condition expression 5 is satisfied, the aberration can be easily corrected to improve the resolution.

[0169] The optical imaging system can also satisfy one or more of the following condition expressions 6 to 10:

[0170] 0.1 < L1w / L7w < 0.3 (Condition expression 6)

[0171] 0.5 < S6d / f < 1.2 (Condition expression 7)

[0172] 0.4 < L1TR / L7TR < 0.7 (Condition expression 8)

[0173] 0.5 < L1234TRavg / L7TR < 0.75 (Condition expression 9)

[0174] 0.5 < L12345TRavg / L7TR < 0.76 (Condition expression 10)

[0175] Except that condition expressions 6 to 10 specify a narrower range, condition expressions 6 to 10 are the same as condition expressions 1 to 5.

[0176] The optical imaging system can also satisfy one or more of the following condition expressions 11 to 32:

[0177] 0.01 < R1 / R4 < 1.3 (Conditional expression 11)

[0178] 0.1 < R1 / R5 < 0.7 (Conditional expression 12)

[0179] 0.05 < R1 / R6 < 0.9 (Conditional expression 13)

[0180] 0.2 < R1 / R11 < 1.2 (Conditional expression 14)

[0181] 0.8 < R1 / R14 < 1.2 (Conditional expression 15)

[0182] 0.6 < (R11 + R14) / (2 * R1) < 3.0 (Conditional expression 16)

[0183] 0.4 < D13 / D57 < 1.2 (Conditional expression 17)

[0184] 0.1 < (1 / f1 + 1 / f2 + 1 / f3 + 1 / f4 + 1 / f5 + 1 / f6 + 1 / f7) * f < 0.8

[0185] (Conditional expression 18)

[0186] 0.1 < (1 / f1 + 1 / f2 + 1 / f3 + 1 / f4 + 1 / f5 + 1 / f6 + 1 / f7) * TTL < 1.0

[0187] (Conditional expression 19)

[0188] 0.2 < TD1 / D67 < 0.8 (Conditional expression 20)

[0189] 0.1 < (R11 + R14) / (R5 + R6) < 1.0 (Conditional expression 21)

[0190] SD12 < SD34 (Conditional expression 22)

[0191] SD56 < SD67 (Conditional expression 23)

[0192] SD56 < SD34 (Conditional expression 24)

[0193] 0.6 < TTL / (2 * Img HT) < 0.9 (Conditional expression 25)

[0194] 0.2 < ΣSD / ΣTD < 0.7 (Conditional expression 26)

[0195] 0 < min(f1:f3) / max(f4:f7) < 0.4 (Conditional expression 27)

[0196] 0.4 < ΣTD / TTL < 0.7 (Condition expression 28)

[0197] 0.7 < SL / TTL < 1.0 (Condition expression 29)

[0198] 0.81 < f12 / f123 < 0.96 (Condition expression 30)

[0199] 0.6 < f12 / f1234 < 0.84 (Condition expression 31)

[0200] TTL ≤ 6.00 mm (Condition expression 32)

[0201] In the above condition expressions, R1 is the radius of curvature of the object side surface of the first lens, R4 is the radius of curvature of the image side surface of the second lens, R5 is the radius of curvature of the object side surface of the third lens, R6 is the radius of curvature of the image side surface of the third lens, R11 is the radius of curvature of the object side surface of the sixth lens, R14 is the radius of curvature of the image side surface of the seventh lens, D13 is the distance along the optical axis of the optical imaging system from the object side surface of the first lens to the image side surface of the third lens, D57 is the distance along the optical axis from the object side surface of the fifth lens to the image side surface of the seventh lens, 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, f is the total focal length of the optical imaging system, TTL is the distance along the optical axis from the object side surface of the first lens to the imaging surface of the optical imaging system, TD1 is the thickness of the first lens along the optical axis, D67 is the distance along the optical axis from the object side surface of the sixth lens to the image side surface of the seventh lens, SD12 is the distance along the optical axis from the image side surface of the first lens to the object side surface of the second lens, SD34 is the distance along the optical axis from the image side surface of the third lens to the object side surface of the fourth lens, SD56 is the distance along the optical axis from the image side surface of the fifth lens to the object side surface of the sixth lens, SD67 is the distance along the optical axis from the image side surface of the sixth lens to the object side surface of the seventh lens, Img HT is half of the diagonal length of the imaging surface, ΣSD is the sum of the air gaps between the lenses along the optical axis, ΣTD is the sum of the thicknesses of the lenses along the optical axis, min(f1:f3) is the minimum value of the absolute values of the focal lengths of the first lens to the third lens, max(f4:f7) is the maximum value of the absolute values of the focal lengths of the fourth lens to the seventh lens, SL is the distance along the optical axis from the aperture stop to the imaging surface, f12 is the combined focal length of the first lens and the second lens, f123 is the combined focal length of the first lens to the third lens, and f1234 is the combined focal length of the first lens to the fourth lens.

[0202] When condition expression 11 is satisfied, the correction effects of longitudinal spherical aberration and astigmatic field curvature can be improved, and thus the resolution can be increased.

[0203] When conditional expression 12 is satisfied, the correction effect of longitudinal spherical aberration and astigmatism can be improved, and thus the resolution can be improved.

[0204] When conditional expression 13 is satisfied, the correction effect of longitudinal spherical aberration and astigmatism can be improved, and thus the resolution can be improved.

[0205] When conditional expression 14 is satisfied, the correction effect of longitudinal spherical aberration can be improved, and flickering can be prevented. Therefore, the resolution can be improved.

[0206] When conditional expression 15 is satisfied, the correction effect of longitudinal spherical aberration can be improved, and the curvature of the imaging plane can be suppressed. Therefore, the resolution can be improved.

[0207] When conditional expression 16 is satisfied, the correction effect of longitudinal spherical aberration can be improved, the bending of the imaging plane can be suppressed, and flicker can be prevented. Therefore, the resolution can be improved.

[0208] When condition expression 17 is satisfied, a thin optical imaging system can be realized.

[0209] When conditional expression 18 is satisfied, the sensitivity of each lens can be increased to improve batch production rate.

[0210] When condition expression 20 is satisfied, a thin optical imaging system can be realized.

[0211] When conditional expression 22 is met, the color difference correction effect can be improved.

[0212] When condition expression 25 is satisfied, a thin optical imaging system can be realized.

[0213] When condition expression 26 is satisfied, the batch production rate of each lens can be increased, and a thin optical imaging system can be achieved.

[0214] When condition expression 27 is satisfied, a thin optical imaging system can be realized.

[0215] When conditional expression 28 is satisfied, the batch production rate of each lens can be increased, and a thin optical imaging system can be achieved.

[0216] When condition expression 29 is satisfied, a thin optical imaging system can be realized.

[0217] When condition expression 30 is satisfied, a thin optical imaging system can be realized.

[0218] When condition expression 31 is satisfied, a thin optical imaging system can be realized.

[0219] The following is presented Figure 55 and Figure 56 The description includes twenty-seven examples of the optical imaging system 100 shown. Although these descriptions use expressions such as "may include," "may have," and "may be" when describing the examples, the examples actually possess the features and characteristics mentioned in the description using these expressions. In the tables described below, S1 represents the object-side surface of the first lens, S2 represents the image-side surface of the first lens, S3 represents the object-side surface of the second lens, S4 represents the image-side surface of the second lens, S5 represents the object-side surface of the third lens, S6 represents the image-side surface of the third lens, S7 represents the object-side surface of the fourth lens, S8 represents the image-side surface of the fourth lens, S9 represents the object-side surface of the fifth lens, S10 represents the image-side surface of the fifth lens, S11 represents the object-side surface of the sixth lens, S12 represents the image-side surface of the sixth lens, S13 represents the object-side surface of the seventh lens, S14 represents the image-side surface of the seventh lens, S15 represents the object-side surface of the filter, S16 represents the image-side surface of the filter, and S17 represents the imaging plane.

[0220] First Example

[0221] Figure 1 This is a view showing a first example of an optical imaging system, and Figure 2 It shows Figure 1 Aberration curves of optical imaging systems.

[0222] A first example of an optical imaging system may include a first lens 110, a second lens 120, a third lens 130, a fourth lens 140, a fifth lens 150, a sixth lens 160, a seventh lens 170, a filter 180, an image sensor 190, and an aperture (not shown) disposed between the second lens 120 and the third lens 130.

[0223] The first lens 110 may have positive refractive power, and the object side of the first lens 110 may bulge in the paraxial region and the image side of the first lens 110 may be concave in the paraxial region.

[0224] The second lens 120 may have negative refractive power, and the object side of the second lens 120 may bulge in the paraxial region and the image side of the second lens 120 may be concave in the paraxial region.

[0225] The third lens 130 may have positive refractive power, and the object side of the third lens 130 may bulge in the paraxial region and the image side of the third lens 130 may be concave in the paraxial region.

[0226] The fourth lens 140 may have positive refractive power, and the object side of the fourth lens 140 may be concave in the paraxial region and the image side of the fourth lens 140 may be convex in the paraxial region.

[0227] The fifth lens 150 may have negative refractive power, and the object side of the fifth lens 150 may be concave in the paraxial region and the image side of the fifth lens 150 may be convex in the paraxial region.

[0228] The sixth lens 160 may have positive refractive power, and the object side of the sixth lens 160 may bulge in the paraxial region and the image side of the sixth lens 160 may be concave in the paraxial region.

[0229] The seventh lens 170 may have negative refractive power, and the object side of the seventh lens 170 may bulge in the paraxial region and the image side of the seventh lens 170 may be concave in the paraxial region.

[0230] Additionally, two inflection points can be formed on the object-side surface of the seventh lens 170. For example, the object-side surface of the seventh lens 170 can bulge in the paraxial region, become concave in the region outside the paraxial region, and bulge towards the edge of the object-side surface of the seventh lens 170.

[0231] Additionally, a recurved point can be formed on the image-side surface of the seventh lens 170. For example, the image-side surface of the seventh lens 170 can be concave in the paraxial region and convex towards the edge of the image-side surface of the seventh lens 170.

[0232] although Figure 1 The aperture is not shown, but it is set at a distance of 0.657 mm from the object side of the first lens 110 toward the image side of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the TTL and SL values ​​of Example 1 listed in Table 55, which will be presented later in this application.

[0233] Table 1 below shows the composition Figure 1 The physical properties of the lenses and other components of the optical imaging system are shown in Table 2 below. Figure 1 The aspherical surface coefficient of the lens. Figure 1 Both surfaces of all the lenses are aspherical.

[0234] Table 1

[0235]

[0236] Table 2

[0237]

[0238]

[0239] Second example

[0240] Figure 3This is a view showing a second example of an optical imaging system, and Figure 4 It shows Figure 3 Aberration curves of optical imaging systems.

[0241] A second example of an optical imaging system may include a first lens 210, a second lens 220, a third lens 230, a fourth lens 240, a fifth lens 250, a sixth lens 260, a seventh lens 270, a filter 280, an image sensor 290, and an aperture (not shown) disposed between the first lens 210 and the second lens 220.

[0242] The first lens 210 may have positive refractive power, and the object side of the first lens 210 may bulge in the paraxial region and the image side of the first lens 210 may be concave in the paraxial region.

[0243] The second lens 220 may have negative refractive power, and the object side of the second lens 220 may bulge in the paraxial region and the image side of the second lens 220 may be concave in the paraxial region.

[0244] The third lens 230 may have positive refractive power, and the object side and image side of the third lens 230 may protrude in the paraxial region.

[0245] The fourth lens 240 may have negative refractive power, and the object side of the fourth lens 240 may bulge in the paraxial region and the image side of the fourth lens 240 may be concave in the paraxial region.

[0246] The fifth lens 250 may have negative refractive power, and the object side of the fifth lens 250 may bulge in the paraxial region and the image side of the fifth lens 250 may be concave in the paraxial region.

[0247] The sixth lens 260 may have positive refractive power, and the object side and image side of the sixth lens 260 may bulge in the paraxial region.

[0248] The seventh lens 270 may have negative refractive power, and the object side and image side of the seventh lens 270 may be concave in the paraxial region.

[0249] Additionally, a recurved point may be formed on the object-side surface of the seventh lens 270. For example, the object-side surface of the seventh lens 270 may be concave in the paraxial region and convex towards the edge of the object-side surface of the seventh lens 270.

[0250] Additionally, a recurved point can be formed on the image-side surface of the seventh lens 270. For example, the image-side surface of the seventh lens 270 can be concave in the paraxial region and convex towards the edge of the image-side surface of the seventh lens 270.

[0251] although Figure 3The aperture is not shown, but it is set at a distance of 0.903 mm from the object side of the first lens 210 toward the image side of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the TTL and SL values ​​of Example 2 listed in Table 55, which will be presented later in this application.

[0252] Table 3 below shows the composition Figure 3 The physical properties of the lenses and other components of the optical imaging system are shown in Table 4 below. Figure 3 The aspherical surface coefficient of the lens. Except for the object-side surface of the second lens 220, Figure 3 Both surfaces of all the lenses are aspherical.

[0253] Table 3

[0254]

[0255]

[0256] Table 4

[0257] K A B C D E F G H J S1 -1.06281 0.01395 0.00941 -0.01412 0.016751 -0.01213 0.005246 -0.00125 0.000113 0 S2 10.99365 -0.0496 0.043223 -0.02678 0.01076 -0.00422 0.001531 -0.00036 3.39E-05 0 S3 0 0 0 0 0 0 0 0 0 0 S4 -1.57846 -0.06964 0.064533 0.011426 -0.07261 0.078892 -0.04113 0.010258 -0.00062 0 S5 0 -0.02505 0.012832 -0.06832 0.114397 -0.11363 0.062176 -0.01694 0.001754 0 S6 -95 -0.06124 -0.00208 0.018185 -0.0574 0.078131 -0.05827 0.022909 -0.0037 0 S7 0 -0.13045 0.042894 -0.12127 0.185066 -0.15794 0.079696 -0.02253 0.002763 0 S8 0 -0.10238 0.076048 -0.14731 0.180393 -0.13452 0.060052 -0.01498 0.001622 0 S9 0 -0.12987 0.161036 -0.15532 0.106502 -0.05376 0.017897 -0.00352 0.000315 0 S10 3.618339 -0.19523 0.14843 -0.11064 0.069557 -0.03186 0.009112 -0.00141 8.97E-05 0 S11 -19.5338 -0.02618 -0.01422 0.001668 0.00202 -0.00126 0.0003 -2.8E-05 5.96E-07 0 S12 -0.77737 0.093402 -0.07013 0.024503 -0.00579 0.001227 -0.0002 1.83E-05 -6.9E-07 0 S13 -17.9057 -0.104 0.008741 0.01022 -0.0036 0.000564 -4.8E-05 2.21E-06 -4.2E-08 0 S14 -0.59751 -0.10999 0.036578 -0.00899 0.001629 -0.00023 2.28E-05 -1.5E-06 6.25E-08 -1.1E-09

[0258] Third Example

[0259] Figure 5 This is a view showing a third example of an optical imaging system, and Figure 6 It shows Figure 5 Aberration curves of optical imaging systems.

[0260] A third example of an optical imaging system may include a first lens 310, a second lens 320, a third lens 330, a fourth lens 340, a fifth lens 350, a sixth lens 360, a seventh lens 370, a filter 380, an image sensor 390, and an aperture (not shown) disposed between the first lens 310 and the second lens 320.

[0261] The first lens 310 may have positive refractive power, and the object side of the first lens 310 may bulge in the paraxial region and the image side of the first lens 310 may be concave in the paraxial region.

[0262] The second lens 320 may have negative refractive power, and the object side of the second lens 320 may bulge in the paraxial region and the image side of the second lens 320 may be concave in the paraxial region.

[0263] The third lens 330 may have positive refractive power, and the object side of the third lens 330 may bulge in the paraxial region and the image side of the third lens 330 may be concave in the paraxial region.

[0264] The fourth lens 340 may have negative refractive power, and the object side of the fourth lens 340 may bulge in the paraxial region and the image side of the fourth lens 340 may be concave in the paraxial region.

[0265] The fifth lens 350 may have negative refractive power, and the object side of the fifth lens 350 may bulge in the paraxial region and the image side of the fifth lens 350 may be concave in the paraxial region.

[0266] The sixth lens 360 may have positive refractive power, and the object side and image side of the sixth lens 360 may protrude in the paraxial region.

[0267] The seventh lens 370 may have negative refractive power, and the object side and image side of the seventh lens 370 may be concave in the paraxial region.

[0268] Additionally, a recurved point may be formed on the object-side surface of the seventh lens 370. For example, the object-side surface of the seventh lens 370 may be concave in the paraxial region and convex towards the edge of the object-side surface of the seventh lens 370.

[0269] Additionally, a recurved point can be formed on the image-side surface of the seventh lens 370. For example, the image-side surface of the seventh lens 370 can be concave in the paraxial region and convex towards the edge of the image-side surface of the seventh lens 370.

[0270] although Figure 5 The aperture is not shown, but it is set at a distance of 0.818 mm from the object side of the first lens 310 toward the image side of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the TTL and SL values ​​of Example 3 listed in Table 55, which will be presented later in this application.

[0271] Table 5 below shows the composition. Figure 5 The physical properties of the lenses and other components of the optical imaging system are shown in Table 6 below. Figure 5 The aspherical surface coefficient of the lens. Except for the object-side surface of the second lens 320, Figure 5 Both surfaces of all the lenses are aspherical.

[0272] Table 5

[0273]

[0274]

[0275] Table 6

[0276] K A B C D E F G H J S1 -1.0302 0.018188 0.032245 -0.07196 0.112928 -0.10738 0.060719 -0.01872 0.002295 0 S2 9.43023 -0.10102 0.141494 -0.11688 0.038896 0.013478 -0.02044 0.008552 -0.00134 0 S3 0 0 0 0 0 0 0 0 0 0 S4 -0.50537 -0.10697 0.153004 0.009755 -0.29683 0.477095 -0.35748 0.129532 -0.01458 0 S5 0 -0.05254 0.023493 -0.1143 0.214047 -0.26482 0.177126 -0.05517 0.005476 0 S6 -99 -0.11144 0.07916 -0.20212 0.267335 -0.18518 0.019544 0.044285 -0.01687 0 S7 0 -0.20077 0.140611 -0.37803 0.453081 -0.18096 -0.09799 0.111673 -0.02809 0 S8 0 -0.20577 0.304963 -0.59986 0.731946 -0.53515 0.225984 -0.05251 0.005575 0 S9 0 -0.28358 0.467356 -0.47172 0.280955 -0.07421 -0.01626 0.014562 -0.00242 0 S10 2.862598 -0.31693 0.301196 -0.21698 0.125203 -0.05589 0.017401 -0.00325 0.000272 0 S11 -19.5338 -0.07211 -0.00681 0.001046 0.009791 -0.00904 0.002973 -0.00036 8.29E-06 0 S12 -1.13682 0.173265 -0.16996 0.078719 -0.01703 0.000973 0.000343 -7.9E-05 5.3E-06 0 S13 -13.4335 -0.08518 -0.04504 0.056746 -0.02132 0.004215 -0.00048 2.92E-05 -7.6E-07 0 S14 -0.68587 -0.15974 0.072817 -0.02745 0.00783 -0.00164 0.000238 -2.3E-05 1.25E-06 -3E-08

[0277] Fourth example

[0278] Figure 7 This is a view showing a fourth example of an optical imaging system, and Figure 8 It shows Figure 7 Aberration curves of optical imaging systems.

[0279] A fourth example of an optical imaging system may include a first lens 410, a second lens 420, a third lens 430, a fourth lens 440, a fifth lens 450, a sixth lens 460, a seventh lens 470, a filter 480, an image sensor 490, and an aperture (not shown) disposed between the second lens 420 and the third lens 430.

[0280] The first lens 410 may have positive refractive power, and the object side of the first lens 410 may bulge in the paraxial region and the image side of the first lens 410 may be concave in the paraxial region.

[0281] The second lens 420 may have positive refractive power, and the object side and image side of the second lens 420 may protrude in the paraxial region.

[0282] The third lens 430 may have negative refractive power, and the object side of the third lens 430 may bulge in the paraxial region and the image side of the third lens 430 may be concave in the paraxial region.

[0283] The fourth lens 440 may have positive refractive power, and the object side of the fourth lens 440 may be concave in the paraxial region and the image side of the fourth lens 440 may be convex in the paraxial region.

[0284] The fifth lens 450 may have positive refractive power, and the object side of the fifth lens 450 may bulge in the paraxial region and the image side of the fifth lens 450 may be concave in the paraxial region.

[0285] The sixth lens 460 may have negative refractive power, and the object side of the sixth lens 460 may bulge in the paraxial region and the image side of the sixth lens 460 may be concave in the paraxial region.

[0286] The seventh lens 470 may have positive refractive power, and the object side of the seventh lens 470 may bulge in the paraxial region and the image side of the seventh lens 470 may be concave in the paraxial region.

[0287] Additionally, two inflection points can be formed on the object-side surface of the seventh lens 470. For example, the object-side surface of the seventh lens 470 can bulge in the paraxial region, become concave in the region outside the paraxial region, and bulge towards the edge of the object-side surface of the seventh lens 470.

[0288] Additionally, a recurved point can be formed on the image-side surface of the seventh lens 470. For example, the image-side surface of the seventh lens 470 can be concave in the paraxial region and convex towards the edge of the image-side surface of the seventh lens 470.

[0289] although Figure 7 The aperture is not shown, but it is set at a distance of 1.160 mm from the object side of the first lens 410 toward the image side of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the TTL and SL values ​​of Example 4 listed in Table 55, which will be presented later in this application.

[0290] Table 7 below shows the composition. Figure 7 The physical properties of the lenses and other components of the optical imaging system are shown in Table 8 below. Figure 7 The aspherical surface coefficient of the lens. Figure 7 Both surfaces of all the lenses are aspherical.

[0291] Table 7

[0292]

[0293]

[0294] Table 8

[0295] K A B C D E F G H J S1 -7.583 0.0888 -0.119 0.0923 -0.0948 0.0482 -0.003 -0.0042 0.0008 0 S2 -20.327 -0.0066 -0.1632 0.1025 0.0438 -0.0722 0.0262 -0.0005 -0.0011 0 S3 -0.2671 -0.0459 -0.0455 -0.027 0.1584 -0.0377 -0.1072 0.0826 -0.0186 0 S4 0 0.0277 -0.1403 0.1228 0.1799 -0.4927 0.4448 -0.186 0.03 0 S5 -4.5253 -0.0875 0.0631 -0.2483 0.8524 -1.3993 1.2015 -0.5193 0.0898 0 S6 0.5431 -0.123 0.1655 -0.2954 0.5449 -0.6999 0.5654 -0.2554 0.0541 0 S7 0 -0.0243 -0.1085 0.1778 -0.2176 0.2407 -0.2382 0.1432 -0.0356 0 S8 0 -0.0162 -0.1425 0.0788 0.0935 -0.1616 0.0885 -0.0169 0 0 S9 -43.017 0.1677 -0.2344 0.1196 -0.0548 0.0387 -0.0269 0.0094 -0.0012 0 S10 -5.2037 -0.0358 0.0999 -0.2203 0.2016 -0.1066 0.0335 -0.0057 0.0004 0 S11 -1.699 0.0343 -0.2737 0.3209 -0.2494 0.1179 -0.0316 0.0045 -0.0003 0 S12 -0.0013 -0.0989 -0.0458 0.0603 -0.0408 0.0165 -0.0038 0.0005 -2E-05 0 S13 -0.8015 -0.5195 0.2893 -0.1079 0.0311 -0.0069 0.0011 -0.0001 7E-06 -2E-07 S14 -1.2781 -0.3766 0.2432 -0.1184 0.0416 -0.01 0.0016 -0.0002 9E-06 -2E-07

[0296] Fifth example

[0297] Figure 9 This is a view showing the fifth example of an optical imaging system, and Figure 10 It shows Figure 9 Aberration curves of optical imaging systems.

[0298] A fifth example of an optical imaging system may include a first lens 510, a second lens 520, a third lens 530, a fourth lens 540, a fifth lens 550, a sixth lens 560, a seventh lens 570, a filter 580, an image sensor 590, and an aperture (not shown) disposed between the second lens 520 and the third lens 530.

[0299] The first lens 510 may have positive refractive power, and the object side of the first lens 510 may bulge in the paraxial region and the image side of the first lens 510 may be concave in the paraxial region.

[0300] The second lens 520 may have positive refractive power, and the object side and image side of the second lens 520 may protrude in the paraxial region.

[0301] The third lens 530 may have negative refractive power, and the object side of the third lens 530 may bulge in the paraxial region and the image side of the third lens 530 may be concave in the paraxial region.

[0302] The fourth lens 540 may have negative refractive power, and the object side of the fourth lens 540 may be concave in the paraxial region and the image side of the fourth lens 540 may be convex in the paraxial region.

[0303] The fifth lens 550 may have positive refractive power, and the object side of the fifth lens 550 may bulge in the paraxial region and the image side of the fifth lens 550 may be concave in the paraxial region.

[0304] The sixth lens 560 may have negative refractive power, and the object side of the sixth lens 560 may bulge in the paraxial region and the image side of the sixth lens 560 may be concave in the paraxial region.

[0305] The seventh lens 570 may have positive refractive power, and the object side of the seventh lens 570 may bulge in the paraxial region and the image side of the seventh lens 570 may be concave in the paraxial region.

[0306] Additionally, two inflection points can be formed on the object-side surface of the seventh lens 570. For example, the object-side surface of the seventh lens 570 can bulge in the paraxial region, become concave in the region outside the paraxial region, and bulge towards the edge of the object-side surface of the seventh lens 570.

[0307] Additionally, a curvature point can be formed on the image-side surface of the seventh lens 570. For example, the image-side surface of the seventh lens 570 can be concave in the paraxial region and convex towards the edge of the image-side surface of the seventh lens 570.

[0308] although Figure 9 The aperture is not shown, but it is set at a distance of 1.169 mm from the object side of the first lens 510 toward the image side of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the TTL and SL values ​​of Example 5 listed in Table 55, which will be presented later in this application.

[0309] Table 9 below shows the composition Figure 9 The physical properties of the lenses and other components of the optical imaging system are shown in Table 10 below. Figure 9 The aspherical surface coefficient of the lens. Figure 9 Both surfaces of all the lenses are aspherical.

[0310] Table 9

[0311]

[0312] Table 10

[0313] K A B C D E F G H J S1 -7.5279 0.0857 -0.105 0.0528 -0.0256 -0.0221 0.0379 -0.0166 0.0023 0 S2 -19.893 -0.0142 -0.1337 0.0682 0.0621 -0.0783 0.0306 -0.0031 -0.0006 0 S3 -0.0142 -0.0449 -0.0418 -0.0147 0.1136 0.012 -0.1333 0.0892 -0.0193 0 S4 0 0.0281 -0.189 0.276 -0.0808 -0.2297 0.2908 -0.1382 0.024 0 S5 -6.2325 -0.0763 -0.0054 -0.0795 0.6054 -1.1875 1.107 -0.5047 0.0912 0 S6 0.4782 -0.115 0.1396 -0.2676 0.5637 -0.7991 0.6898 -0.325 0.0682 0 S7 0 -0.0188 -0.0772 0.0717 0.0184 -0.081 0.0225 0.0277 -0.0139 0 S8 0 -0.0127 -0.1356 0.0837 0.0781 -0.1502 0.0847 -0.0163 0 0 S9 -49.08 0.1815 -0.3205 0.2837 -0.2161 0.1317 -0.0595 0.0158 -0.0017 0 S10 -5.4303 -0.0205 0.025 -0.1003 0.1046 -0.0624 0.0222 -0.0043 0.0003 0 S11 -1.136 0.0314 -0.2615 0.3261 -0.2695 0.133 -0.0369 0.0053 -0.0003 0 S12 0.0272 -0.1293 0.0241 5E-05 -0.0123 0.0085 -0.0024 0.0003 -2E-05 0 S13 -0.8 -0.5247 0.2994 -0.1227 0.0414 -0.0108 0.002 -0.0002 2E-05 -4E-07 S14 -1.3207 -0.3666 0.2425 -0.1248 0.0468 -0.0121 0.002 -0.0002 1E-05 -3E-07

[0314] Sixth example

[0315] Figure 11 This is a view showing the sixth example of an optical imaging system, and Figure 12 It shows Figure 11 Aberration curves of optical imaging systems.

[0316] A sixth example of an optical imaging system may include a first lens 610, a second lens 620, a third lens 630, a fourth lens 640, a fifth lens 650, a sixth lens 660, a seventh lens 670, a filter 680, an image sensor 690, and an aperture (not shown) disposed between the first lens 610 and the second lens 620.

[0317] The first lens 610 may have negative refractive power, and the object side of the first lens 610 may bulge in the paraxial region and the image side of the first lens 610 may be concave in the paraxial region.

[0318] The second lens 620 may have positive refractive power, and the object side of the second lens 620 may bulge in the paraxial region and the image side of the second lens 620 may be concave in the paraxial region.

[0319] The third lens 630 may have negative refractive power, and the object side of the third lens 630 may bulge in the paraxial region and the image side of the third lens 630 may be concave in the paraxial region.

[0320] The fourth lens 640 may have negative refractive power, and the object side of the fourth lens 640 may bulge in the paraxial region and the image side of the fourth lens 640 may be concave in the paraxial region.

[0321] The fifth lens 650 may have positive refractive power, and the object side of the fifth lens 650 may bulge in the paraxial region and the image side of the fifth lens 650 may be concave in the paraxial region.

[0322] The sixth lens 660 may have positive refractive power, and the object side and image side of the sixth lens 660 may bulge in the paraxial region.

[0323] The seventh lens 670 may have negative refractive power, and the object side and image side of the seventh lens 670 may be concave in the paraxial region.

[0324] Additionally, a recurved point may be formed on the object-side surface of the seventh lens 670. For example, the object-side surface of the seventh lens 670 may be concave in the paraxial region and convex towards the edge of the object-side surface of the seventh lens 670.

[0325] Additionally, a curvature point can be formed on the image-side surface of the seventh lens 670. For example, the image-side surface of the seventh lens 670 can be concave in the paraxial region and convex towards the edge of the image-side surface of the seventh lens 670.

[0326] although Figure 11 The aperture is not shown, but it is set at a distance of 0.383 mm from the object side of the first lens 610 toward the image side of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the TTL and SL values ​​of Example 6 listed in Table 55, which will be presented later in this application.

[0327] Table 11 below shows the composition Figure 11 The physical properties of the lenses and other components of the optical imaging system are shown in Table 12 below. Figure 11 The aspherical surface coefficient of the lens. Figure 11 Both surfaces of all the lenses are aspherical.

[0328] Table 11

[0329]

[0330] Table 12

[0331]

[0332]

[0333] Seventh Example

[0334] Figure 13 This is a view showing the seventh example of an optical imaging system, and Figure 14 It shows Figure 13 Aberration curves of optical imaging systems.

[0335] A seventh example of an optical imaging system may include a first lens 710, a second lens 720, a third lens 730, a fourth lens 740, a fifth lens 750, a sixth lens 760, a seventh lens 770, a filter 780, an image sensor 790, and an aperture (not shown) disposed between the first lens 710 and the second lens 720.

[0336] The first lens 710 may have negative refractive power, and the object side of the first lens 710 may bulge in the paraxial region and the image side of the first lens 710 may be concave in the paraxial region.

[0337] The second lens 720 may have positive refractive power, and the object side of the second lens 720 may bulge in the paraxial region and the image side of the second lens 720 may be concave in the paraxial region.

[0338] The third lens 730 may have negative refractive power, and the object side of the third lens 730 may bulge in the paraxial region and the image side of the third lens 730 may be concave in the paraxial region.

[0339] The fourth lens 740 may have negative refractive power, and the object side of the fourth lens 740 may bulge in the paraxial region and the image side of the fourth lens 740 may be concave in the paraxial region.

[0340] The fifth lens 750 may have positive refractive power, and the object side of the fifth lens 750 may bulge in the paraxial region and the image side of the fifth lens 750 may be concave in the paraxial region.

[0341] The sixth lens 760 may have positive refractive power, and the object side and image side of the sixth lens 760 may protrude in the paraxial region.

[0342] The seventh lens 770 may have negative refractive power, and the object side and image side of the seventh lens 770 may be concave in the paraxial region.

[0343] Additionally, a recurved point may be formed on the object-side surface of the seventh lens 770. For example, the object-side surface of the seventh lens 770 may be concave in the paraxial region and convex towards the edge of the object-side surface of the seventh lens 770.

[0344] Additionally, a recurved point can be formed on the image-side surface of the seventh lens 770. For example, the image-side surface of the seventh lens 770 can be concave in the paraxial region and convex towards the edge of the image-side surface of the seventh lens 770.

[0345] although Figure 13 The aperture is not shown, but it is set at a distance of 0.351 mm from the object side of the first lens 710 toward the image side of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the TTL and SL values ​​of Example 7 listed in Table 55, which will be presented later in this application.

[0346] Table 13 below shows the composition Figure 13 The physical properties of the lenses and other components of the optical imaging system are shown in Table 14 below. Figure 13 The aspherical surface coefficient of the lens. Figure 13 Both surfaces of all the lenses are aspherical.

[0347] Table 13

[0348]

[0349] Table 14

[0350]

[0351]

[0352] Eighth Example

[0353] Figure 15 This is a view showing the eighth example of an optical imaging system, and Figure 16 It shows Figure 15 Aberration curves of optical imaging systems.

[0354] An eighth example of an optical imaging system may include a first lens 810, a second lens 820, a third lens 830, a fourth lens 840, a fifth lens 850, a sixth lens 860, a seventh lens 870, a filter 880, an image sensor 890, and an aperture (not shown) disposed between the first lens 810 and the second lens 820.

[0355] The first lens 810 may have negative refractive power, and the object side of the first lens 810 may bulge in the paraxial region and the image side of the first lens 810 may be concave in the paraxial region.

[0356] The second lens 820 may have positive refractive power, and the object side of the second lens 820 may bulge in the paraxial region and the image side of the second lens 820 may be concave in the paraxial region.

[0357] The third lens 830 may have negative refractive power, and the object side of the third lens 830 may bulge in the paraxial region and the image side of the third lens 830 may be concave in the paraxial region.

[0358] The fourth lens 840 may have negative refractive power, and the object side of the fourth lens 840 may bulge in the paraxial region and the image side of the fourth lens 840 may be concave in the paraxial region.

[0359] The fifth lens 850 may have positive refractive power, and the object side of the fifth lens 850 may bulge in the paraxial region and the image side of the fifth lens 850 may be concave in the paraxial region.

[0360] The sixth lens 860 may have positive refractive power, and the object side and image side of the sixth lens 860 may bulge in the paraxial region.

[0361] The seventh lens 870 may have negative refractive power, and the object side and image side of the seventh lens 870 may be concave in the paraxial region.

[0362] Additionally, a recurved point can be formed on the object-side surface of the seventh lens 870. For example, the object-side surface of the seventh lens 870 can be concave in the paraxial region and convex towards the edge of the object-side surface of the seventh lens 870.

[0363] Additionally, a recurved point can be formed on the image-side surface of the seventh lens 870. For example, the image-side surface of the seventh lens 870 can be concave in the paraxial region and convex towards the edge of the image-side surface of the seventh lens 870.

[0364] although Figure 15 The aperture is not shown, but it is set at a distance of 0.336 mm from the object side of the first lens 810 toward the image side of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the TTL and SL values ​​of Example 8 listed in Table 55, which will be presented later in this application.

[0365] Table 15 below shows the composition Figure 15 The physical properties of the lenses and other components of the optical imaging system are shown in Table 16 below. Figure 15 The aspherical surface coefficient of the lens. Figure 15 Both surfaces of all the lenses are aspherical.

[0366] Table 15

[0367]

[0368] Table 16

[0369] K A B C D E F G H S1 -3.5658 -0.0001 0.0048 -0.0338 0.0058 0.0258 -0.024 0.0087 -0.0012 S2 -8.9286 -0.0617 -0.0072 0.019 0.0308 -0.0458 0.0196 -0.0029 0 S3 -2.4366 -0.118 0.178 -0.2127 0.3039 -0.2613 0.1138 -0.0182 -0.0012 S4 100 -0.0932 0.2737 -0.6752 1.2227 -1.4655 1.1 -0.4621 0.0813 S5 0 -0.1401 0.3995 -0.8103 1.2941 -1.4787 1.1095 -0.4775 0.0877 S6 4.6754 -0.0913 0.2084 -0.3503 0.3957 -0.2854 0.067 0.0558 -0.0336 S7 0 -0.1191 0.1586 -0.5241 1.0591 -1.4826 1.3333 -0.7155 0.1765 S8 0 -0.2012 0.3026 -0.6033 0.8015 -0.7547 0.4799 -0.1903 0.0367 S9 -18.968 -0.0705 -0.017 0.0854 -0.095 0.0372 0.0031 -0.007 0.0016 S10 -15.615 -0.0761 -0.0114 0.0715 -0.083 0.0509 -0.0182 0.0035 -0.0003 S11 0 -0.0083 -0.0355 0.0253 -0.0245 0.0145 -0.0045 0.0007 -5E-05 S12 -1.1609 0.1552 -0.1513 0.1068 -0.0571 0.0215 -0.005 0.0006 -3E-05 S13 -4.7786 -0.1272 -0.0055 0.0492 -0.0232 0.0053 -0.0007 4E-05 -1E-06 S14 -8.9618 -0.1184 0.0565 -0.0195 0.0048 -0.0009 1E-04 -6E-06 2E-07

[0370] Ninth Example

[0371] Figure 17 This is a view showing the ninth example of an optical imaging system, and Figure 18 It shows Figure 17 Aberration curves of optical imaging systems.

[0372] A ninth example of an optical imaging system may include a first lens 910, a second lens 920, a third lens 930, a fourth lens 940, a fifth lens 950, a sixth lens 960, a seventh lens 970, a filter 980, an image sensor 990, and an aperture (not shown) disposed between the first lens 910 and the second lens 920.

[0373] The first lens 910 may have positive refractive power, and the object side of the first lens 910 may bulge in the paraxial region and the image side of the first lens 910 may be concave in the paraxial region.

[0374] The second lens 920 may have negative refractive power, and the object side of the second lens 920 may bulge in the paraxial region and the image side of the second lens 920 may be concave in the paraxial region.

[0375] The third lens 930 may have negative refractive power, and the object side of the third lens 930 may bulge in the paraxial region and the image side of the third lens 930 may be concave in the paraxial region.

[0376] The fourth lens 940 may have positive refractive power, and the object side of the fourth lens 940 may bulge in the paraxial region and the image side of the fourth lens 940 may be concave in the paraxial region.

[0377] The fifth lens 950 may have negative refractive power, and the object side of the fifth lens 950 may be concave in the paraxial region and the image side of the fifth lens 950 may be convex in the paraxial region.

[0378] The sixth lens 960 may have positive refractive power, and the object side and image side of the sixth lens 960 may protrude in the paraxial region.

[0379] The seventh lens 970 may have negative refractive power, and the object side and image side of the seventh lens 970 may be concave in the paraxial region.

[0380] Additionally, a curvature point can be formed on the object-side surface of the seventh lens 970. For example, the object-side surface of the seventh lens 970 can be concave in the paraxial region and convex towards the edge of the object-side surface of the seventh lens 970.

[0381] Additionally, a curvature point can be formed on the image-side surface of the seventh lens 970. For example, the image-side surface of the seventh lens 970 can be concave in the paraxial region and convex towards the edge of the image-side surface of the seventh lens 970.

[0382] although Figure 17 The aperture is not shown, but it is set at a distance of 0.731 mm from the object side of the first lens 910 toward the image side of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the TTL and SL values ​​of Example 9 listed in Table 55, which will be presented later in this application.

[0383] Table 17 below shows the composition Figure 17 The physical properties of the lenses and other components of the optical imaging system are shown in Table 18 below. Figure 17 The aspherical surface coefficient of the lens. Figure 17 Both surfaces of all the lenses are aspherical.

[0384] Table 17

[0385]

[0386]

[0387] Table 18

[0388] Tenth example

[0389] Figure 19 This is a view showing the tenth example of an optical imaging system, and Figure 20 It shows Figure 19 Aberration curves of optical imaging systems.

[0390] A tenth example of an optical imaging system may include a first lens 1010, a second lens 1020, a third lens 1030, a fourth lens 1040, a fifth lens 1050, a sixth lens 1060, a seventh lens 1070, a filter 1080, an image sensor 1090, and an aperture stop (not shown) disposed between the first lens 1010 and the second lens 1020.

[0391] The first lens 1010 may have positive refractive power, and the object side of the first lens 1010 may bulge in the paraxial region and the image side of the first lens 1010 may be concave in the paraxial region.

[0392] The second lens 1020 may have negative refractive power, and the object side of the second lens 1020 may bulge in the paraxial region and the image side of the second lens 1020 may be concave in the paraxial region.

[0393] The third lens 1030 may have negative refractive power, and the object side of the third lens 1030 may bulge in the paraxial region and the image side of the third lens 1030 may be concave in the paraxial region.

[0394] The fourth lens 1040 may have positive refractive power, and the object side of the fourth lens 1040 may bulge in the paraxial region and the image side of the fourth lens 1040 may be concave in the paraxial region.

[0395] The fifth lens 1050 may have negative refractive power, and the object side of the fifth lens 1050 may be concave in the paraxial region and the image side of the fifth lens 1050 may be convex in the paraxial region.

[0396] The sixth lens 1060 may have positive refractive power, and the object side and image side of the sixth lens 1060 may bulge in the paraxial region.

[0397] The seventh lens 1070 may have negative refractive power, and the object side and image side of the seventh lens 1070 may be concave in the paraxial region.

[0398] Additionally, a recurved point may be formed on the object-side surface of the seventh lens 1070. For example, the object-side surface of the seventh lens 1070 may be concave in the paraxial region and convex towards the edge of the object-side surface of the seventh lens 1070.

[0399] Additionally, a recurved point can be formed on the image-side surface of the seventh lens 1070. For example, the image-side surface of the seventh lens 1070 can be concave in the paraxial region and convex towards the edge of the image-side surface of the seventh lens 1070.

[0400] although Figure 19 The aperture is not shown, but it is set at a distance of 0.690 mm from the object side of the first lens 1010 toward the image side of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the TTL and SL values ​​of Example 10 listed in Table 55, which will be presented later in this application.

[0401] Table 19 below shows the composition Figure 19 The physical properties of the lenses and other components of the optical imaging system are shown in Table 20 below. Figure 19 The aspherical surface coefficient of the lens. Figure 19 Both surfaces of all the lenses are aspherical.

[0402] Table 19

[0403]

[0404]

[0405] Table 20

[0406] Eleventh Example

[0407] Figure 21 This is a view showing an eleventh example of an optical imaging system, and Figure 22 It shows Figure 21 Aberration curves of optical imaging systems.

[0408] An eleventh example of an optical imaging system may include a first lens 1110, a second lens 1120, a third lens 1130, a fourth lens 1140, a fifth lens 1150, a sixth lens 1160, a seventh lens 1170, a filter 1180, an image sensor 1190, and an aperture stop (not shown) disposed between the first lens 1110 and the second lens 1120.

[0409] The first lens 1110 may have positive refractive power, and the object side of the first lens 1110 may bulge in the paraxial region and the image side of the first lens 1110 may be concave in the paraxial region.

[0410] The second lens 1120 may have negative refractive power, and the object side of the second lens 1120 may bulge in the paraxial region and the image side of the second lens 1120 may be concave in the paraxial region.

[0411] The third lens 1130 may have negative refractive power, and the object side of the third lens 1130 may bulge in the paraxial region and the image side of the third lens 1130 may be concave in the paraxial region.

[0412] The fourth lens 1140 may have positive refractive power, and the object side of the fourth lens 1140 may bulge in the paraxial region and the image side of the fourth lens 1140 may be concave in the paraxial region.

[0413] The fifth lens 1150 may have negative refractive power, and the object side of the fifth lens 1150 may be concave in the paraxial region and the image side of the fifth lens 1150 may be convex in the paraxial region.

[0414] The sixth lens 1160 may have positive refractive power, and the object side and image side of the sixth lens 1160 may bulge in the paraxial region.

[0415] The seventh lens 1170 may have negative refractive power, and the object side and image side of the seventh lens 1170 may be concave in the paraxial region.

[0416] Additionally, a recurved point may be formed on the object-side surface of the seventh lens 1170. For example, the object-side surface of the seventh lens 1170 may be concave in the paraxial region and convex towards the edge of the object-side surface of the seventh lens 1170.

[0417] Additionally, a recurved point can be formed on the image-side surface of the seventh lens 1170. For example, the image-side surface of the seventh lens 1170 can be concave in the paraxial region and convex towards the edge of the image-side surface of the seventh lens 1170.

[0418] although Figure 21 The aperture is not shown, but it is set at a distance of 0.726 mm from the object side of the first lens 1110 toward the image side of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the TTL and SL values ​​of Example 11 listed in Table 55, which will be presented later in this application.

[0419] Table 21 below shows the composition Figure 21 The physical properties of the lenses and other components of the optical imaging system are shown in Table 22 below. Figure 21 The aspherical surface coefficient of the lens. Figure 21 Both surfaces of all the lenses are aspherical.

[0420] Table 21

[0421]

[0422]

[0423] Table 22

[0424] Twelfth Example

[0425] Figure 23 This is a view showing the twelfth example of an optical imaging system, and Figure 24 It shows Figure 23 Aberration curves of optical imaging systems.

[0426] A twelfth example of an optical imaging system may include a first lens 1210, a second lens 1220, a third lens 1230, a fourth lens 1240, a fifth lens 1250, a sixth lens 1260, a seventh lens 1270, a filter 1280, an image sensor 1290, and an aperture (not shown) disposed between the second lens 1220 and the third lens 1230.

[0427] The first lens 1210 may have positive refractive power, and the object side of the first lens 1210 may bulge in the paraxial region and the image side of the first lens 1210 may be concave in the paraxial region.

[0428] The second lens 1220 may have positive refractive power, and the object side and image side of the second lens 1220 may protrude in the paraxial region.

[0429] The third lens 1230 may have negative refractive power, and the object side of the third lens 1230 may bulge in the paraxial region and the image side of the third lens 1230 may be concave in the paraxial region.

[0430] The fourth lens 1240 may have negative refractive power, and the object side of the fourth lens 1240 may bulge in the paraxial region and the image side of the fourth lens 1240 may be concave in the paraxial region.

[0431] The fifth lens 1250 may have positive refractive power, and the object side of the fifth lens 1250 may bulge in the paraxial region and the image side of the fifth lens 1250 may be concave in the paraxial region.

[0432] The sixth lens 1260 may have negative refractive power, and the object side of the sixth lens 1260 may bulge in the paraxial region and the image side of the sixth lens 1260 may be concave in the paraxial region.

[0433] The seventh lens 1270 may have negative refractive power, and the object side of the seventh lens 1270 may bulge in the paraxial region and the image side of the seventh lens 1270 may be concave in the paraxial region.

[0434] Additionally, two inflection points can be formed on the object-side surface of the seventh lens 1270. For example, the object-side surface of the seventh lens 1270 can bulge in the paraxial region, become concave in the region outside the paraxial region, and bulge towards the edge of the object-side surface of the seventh lens 1270.

[0435] Additionally, a recurved point can be formed on the image-side surface of the seventh lens 1270. For example, the image-side surface of the seventh lens 1270 can be concave in the paraxial region and convex towards the edge of the image-side surface of the seventh lens 1270.

[0436] although Figure 23 The aperture is not shown, but it is set at a distance of 1.158 mm from the object side of the first lens 1210 toward the image side of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the TTL and SL values ​​of Example 12 listed in Table 55, which will be presented later in this application.

[0437] Table 23 below shows the composition Figure 23 The physical properties of the lenses and other components of the optical imaging system are shown in Table 24 below. Figure 23 The aspherical surface coefficient of the lens. Figure 23 Both surfaces of all the lenses are aspherical.

[0438] Table 23

[0439]

[0440] Table 24

[0441]

[0442]

[0443] Thirteenth Example

[0444] Figure 25 This is a view illustrating a thirteenth example of an optical imaging system, and Figure 26 It shows Figure 25 Aberration curves of optical imaging systems.

[0445] A thirteenth example of an optical imaging system may include a first lens 1310, a second lens 1320, a third lens 1330, a fourth lens 1340, a fifth lens 1350, a sixth lens 1360, a seventh lens 1370, a filter 1380, an image sensor 1390, and an aperture (not shown) disposed between the second lens 1320 and the third lens 1330.

[0446] The first lens 1310 may have positive refractive power, and the object side of the first lens 1310 may bulge in the paraxial region and the image side of the first lens 1310 may be concave in the paraxial region.

[0447] The second lens 1320 may have positive refractive power, and the object side and image side of the second lens 1320 may protrude in the paraxial region.

[0448] The third lens 1330 may have negative refractive power, and the object side of the third lens 1330 may bulge in the paraxial region and the image side of the third lens 1330 may be concave in the paraxial region.

[0449] The fourth lens 1340 may have positive refractive power, and the object side of the fourth lens 1340 may bulge in the paraxial region and the image side of the fourth lens 1340 may be concave in the paraxial region.

[0450] The fifth lens 1350 may have positive refractive power, and the object side of the fifth lens 1350 may bulge in the paraxial region and the image side of the fifth lens 1350 may be concave in the paraxial region.

[0451] The sixth lens 1360 may have negative refractive power, and the object side of the sixth lens 1360 may bulge in the paraxial region and the image side of the sixth lens 1360 may be concave in the paraxial region.

[0452] The seventh lens 1370 may have negative refractive power, and the object side of the seventh lens 1370 may bulge in the paraxial region and the image side of the seventh lens 1370 may be concave in the paraxial region.

[0453] Additionally, two inflection points can be formed on the object-side surface of the seventh lens 1370. For example, the object-side surface of the seventh lens 1370 can bulge in the paraxial region, become concave in the region outside the paraxial region, and bulge towards the edge of the object-side surface of the seventh lens 1370.

[0454] Additionally, a recurved point can be formed on the image-side surface of the seventh lens 1370. For example, the image-side surface of the seventh lens 1370 can be concave in the paraxial region and convex towards the edge of the image-side surface of the seventh lens 1370.

[0455] although Figure 25 The aperture is not shown, but it is set at a distance of 1.199 mm from the object side of the first lens 1310 toward the image side of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the TTL and SL values ​​of Example 13 listed in Table 55, which will be presented later in this application.

[0456] Table 25 below shows the composition Figure 25The physical properties of the lenses and other components of the optical imaging system are shown in Table 26 below. Figure 25 The aspherical surface coefficient of the lens. Figure 25 Both surfaces of all the lenses are aspherical.

[0457] Table 25

[0458]

[0459] Table 26

[0460]

[0461]

[0462] Fourteenth Example

[0463] Figure 27 This is a view showing the fourteenth example of an optical imaging system, and Figure 28 It shows Figure 27 Aberration curves of optical imaging systems.

[0464] A fourteenth example of an optical imaging system may include a first lens 1410, a second lens 1420, a third lens 1430, a fourth lens 1440, a fifth lens 1450, a sixth lens 1460, a seventh lens 1470, a filter 1480, an image sensor 1490, and an aperture (not shown) disposed between the second lens 1420 and the third lens 1430.

[0465] The first lens 1410 may have positive refractive power, and the object side of the first lens 1410 may bulge in the paraxial region and the image side of the first lens 1410 may be concave in the paraxial region.

[0466] The second lens 1420 may have positive refractive power, and the object side of the second lens 1420 may bulge in the paraxial region and the image side of the second lens 1420 may be concave in the paraxial region.

[0467] The third lens 1430 may have negative refractive power, and the object side of the third lens 1430 may bulge in the paraxial region and the image side of the third lens 1430 may be concave in the paraxial region.

[0468] The fourth lens 1440 may have positive refractive power, and the object side of the fourth lens 1440 may bulge in the paraxial region and the image side of the fourth lens 1440 may be concave in the paraxial region.

[0469] The fifth lens 1450 may have negative refractive power, and the object side of the fifth lens 1450 may bulge in the paraxial region and the image side of the fifth lens 1450 may be concave in the paraxial region.

[0470] The sixth lens 1460 may have positive refractive power, and the object side of the sixth lens 1460 may bulge in the paraxial region and the image side of the sixth lens 1460 may be concave in the paraxial region.

[0471] The seventh lens 1470 may have negative refractive power, and the object side of the seventh lens 1470 may bulge in the paraxial region and the image side of the seventh lens 1470 may be concave in the paraxial region.

[0472] Additionally, two inflection points can be formed on the object-side surface of the seventh lens 1470. For example, the object-side surface of the seventh lens 1470 can bulge in the paraxial region, become concave in the region outside the paraxial region, and bulge towards the edge of the object-side surface of the seventh lens 1470.

[0473] Additionally, a recurved point can be formed on the image-side surface of the seventh lens 1470. For example, the image-side surface of the seventh lens 1470 can be concave in the paraxial region and convex towards the edge of the image-side surface of the seventh lens 1470.

[0474] although Figure 27 The aperture is not shown, but it is set at a distance of 1.077 mm from the object side of the first lens 1410 toward the image side of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the TTL and SL values ​​of Example 14 listed in Table 55, which will be presented later in this application.

[0475] Table 27 below shows the composition. Figure 27 The physical properties of the lenses and other components of the optical imaging system are shown in Table 28 below. Figure 27 The aspherical surface coefficient of the lens. Figure 27 Both surfaces of all the lenses are aspherical.

[0476] Table 27

[0477]

[0478] Table 28

[0479] K A B C D E F G H J S1 -1 -0.0103 0.00782 -0.0588 0.09254 -0.0904 0.0486 -0.0119 0.00038 0.00021 S2 -13.05 0.02575 -0.1274 0.03504 0.06172 -0.0405 0.00034 0.0049 -0.0007 -0.0001 S3 -1.2154 -0.0166 -0.0602 -0.0171 0.06247 0.04814 -0.1007 0.05111 -0.0092 0.00015 S4 -7.0515 -0.047 0.26813 -0.8387 1.45463 -1.5426 1.02637 -0.4201 0.09736 -0.0099 S5 8.8287 -0.0982 0.31064 -0.8268 1.45377 -1.7174 1.3464 -0.6715 0.1944 -0.025 S6 1.72172 -0.0695 0.09394 -0.1196 0.14214 -0.2108 0.2773 -0.2257 0.09968 -0.0182 S7 -1.4309 -0.0448 -0.0056 0.02993 -0.0484 -0.0039 0.08562 -0.1013 0.05106 -0.0095 S8 5.85918 -0.0455 -0.0133 0.03368 -0.0729 0.09223 -0.0766 0.04111 -0.0128 0.00184 S9 -43.521 0.00081 -0.0239 0.02218 -0.0173 0.00514 -0.0002 -0.0003 5.4E-05 4.8E-06 S10 -11.855 -0.0163 -0.0578 0.08324 -0.067 0.0334 -0.0109 0.00227 -0.0003 1.4E-05 S11 -16.199 0.10244 -0.1959 0.19307 -0.1564 0.07971 -0.0243 0.00436 -0.0004 1.8E-05 S12 0.16678 -0.0913 0.11002 -0.1075 0.05366 -0.0157 0.00287 -0.0003 2.1E-05 -6E-07 S13 -0.8022 -0.4375 0.2118 -0.049 0.00155 0.00209 -0.0006 7E-05 -4E-06 1.1E-07 S14 -1.407 -0.3709 0.24995 -0.1268 0.04606 -0.0114 0.00184 -0.0002 1.1E-05 -3E-07

[0480] Example 15

[0481] Figure 29 This is a view showing the fifteenth example of an optical imaging system, and Figure 30 It shows Figure 29 Aberration curves of optical imaging systems.

[0482] A fifteenth example of an optical imaging system may include a first lens 1510, a second lens 1520, a third lens 1530, a fourth lens 1540, a fifth lens 1550, a sixth lens 1560, a seventh lens 1570, a filter 1580, an image sensor 1590, and an aperture (not shown) disposed between the second lens 1520 and the third lens 1530.

[0483] The first lens 1510 may have positive refractive power, and the object side of the first lens 1510 may bulge in the paraxial region and the image side of the first lens 1510 may be concave in the paraxial region.

[0484] The second lens 1520 may have negative refractive power, and the object side of the second lens 1520 may bulge in the paraxial region and the image side of the second lens 1520 may be concave in the paraxial region.

[0485] The third lens 1530 may have positive refractive power, and the object side of the third lens 1530 may bulge in the paraxial region and the image side of the third lens 1530 may be concave in the paraxial region.

[0486] The fourth lens 1540 may have positive refractive power, and the object side of the fourth lens 1540 may bulge in the paraxial region and the image side of the fourth lens 1540 may be concave in the paraxial region.

[0487] The fifth lens 1550 may have negative refractive power, and the object side of the fifth lens 1550 may be concave in the paraxial region and the image side of the fifth lens 1550 may be convex in the paraxial region.

[0488] The sixth lens 1560 may have positive refractive power, and the object side of the sixth lens 1560 may bulge in the paraxial region and the image side of the sixth lens 1560 may be concave in the paraxial region.

[0489] The seventh lens 1570 may have negative refractive power, and the object side of the seventh lens 1570 may bulge in the paraxial region and the image side of the seventh lens 1570 may be concave in the paraxial region.

[0490] Additionally, two inflection points can be formed on the object-side surface of the seventh lens 1570. For example, the object-side surface of the seventh lens 1570 can bulge in the paraxial region, become concave in the region outside the paraxial region, and bulge towards the edge of the object-side surface of the seventh lens 1570.

[0491] Additionally, a recurved point can be formed on the image-side surface of the seventh lens 1570. For example, the image-side surface of the seventh lens 1570 can be concave in the paraxial region and convex towards the edge of the image-side surface of the seventh lens 1570.

[0492] although Figure 29The aperture is not shown, but it is set at a distance of 1.093 mm from the object side of the first lens 1510 toward the image side of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the TTL and SL values ​​of Example 15 listed in Table 55, which will be presented later in this application.

[0493] Table 29 below shows the composition Figure 29 The physical properties of the lenses and other components of the optical imaging system are shown in Table 30 below. Figure 29 The aspherical surface coefficient of the lens. Figure 29 Both surfaces of all the lenses are aspherical.

[0494] Table 29

[0495]

[0496]

[0497] Table 30

[0498] K A B C D E F G H S1 0.1119 -0.0077 0.0183 -0.0487 0.065 -0.0521 0.0239 -0.0059 0.0006 S2 -26.097 -0.0447 0.0639 -0.0885 0.0802 -0.0469 0.017 -0.0035 0.0003 S3 -57.375 -0.0493 0.0357 -0.0459 0.0544 -0.0363 0.0155 -0.0043 0.0006 S4 -8.3441 -0.0492 0.0929 -0.1764 0.2477 -0.2307 0.1429 -0.0507 0.0075 S5 1.5878 -0.035 0.0435 -0.1062 0.1611 -0.1672 0.1224 -0.0475 0.0073 S6 -0.0241 -0.0418 -0.0007 0.0745 -0.1984 0.2528 -0.1625 0.0529 -0.0057 S7 -66.305 -0.0937 0.0545 -0.2 0.3691 -0.4471 0.3394 -0.1416 0.0248 S8 19.549 -0.0871 0.0483 -0.1552 0.2353 -0.2493 0.1709 -0.0651 0.0103 S9 7.2773 -0.0493 0.0331 -0.0549 0.0336 -0.0223 0.0129 -0.0036 0 S10 28.608 -0.1159 0.0778 -0.0525 0.0237 -0.0054 0.0001 0.0002 0 S11 -51.379 -0.0153 -0.0854 0.093 -0.0763 0.0386 -0.011 0.0013 0 S12 -31.504 -0.0086 0.0015 -0.0075 0.0041 -0.0012 0.0002 -1E-05 0 S13 -0.4733 -0.2404 0.1187 -0.0378 0.0079 -0.0011 8E-05 -4E-06 7E-08 S14 -0.7879 -0.2013 0.0915 -0.0345 0.009 -0.0015 0.0001 -7E-06 2E-07

[0499] Sixteenth Example

[0500] Figure 31 This is a view showing the sixteenth example of an optical imaging system, and Figure 32 It shows Figure 31 Aberration curves of optical imaging systems.

[0501] A sixteenth example of an optical imaging system may include a first lens 1610, a second lens 1620, a third lens 1630, a fourth lens 1640, a fifth lens 1650, a sixth lens 1660, a seventh lens 1670, a filter 1680, an image sensor 1690, and an aperture (not shown) disposed between the second lens 1620 and the third lens 1630.

[0502] The first lens 1610 may have positive refractive power, and the object side of the first lens 1610 may bulge in the paraxial region and the image side of the first lens 1610 may be concave in the paraxial region.

[0503] The second lens 1620 may have negative refractive power, and the object side of the second lens 1620 may bulge in the paraxial region and the image side of the second lens 1620 may be concave in the paraxial region.

[0504] The third lens 1630 may have positive refractive power, and the object side of the third lens 1630 may bulge in the paraxial region and the image side of the third lens 1630 may be concave in the paraxial region.

[0505] The fourth lens 1640 may have positive refractive power, and the object side of the fourth lens 1640 may bulge in the paraxial region and the image side of the fourth lens 1640 may be concave in the paraxial region.

[0506] The fifth lens 1650 may have negative refractive power, and the object side of the fifth lens 1650 may be concave in the paraxial region and the image side of the fifth lens 1650 may be convex in the paraxial region.

[0507] The sixth lens 1660 may have positive refractive power, and the object side of the sixth lens 1660 may bulge in the paraxial region and the image side of the sixth lens 1660 may be concave in the paraxial region.

[0508] The seventh lens 1670 may have negative refractive power, and the object side of the seventh lens 1670 may bulge in the paraxial region and the image side of the seventh lens 1670 may be concave in the paraxial region.

[0509] Additionally, two inflection points can be formed on the object-side surface of the seventh lens 1670. For example, the object-side surface of the seventh lens 1670 can bulge in the paraxial region, become concave in the region outside the paraxial region, and bulge towards the edge of the object-side surface of the seventh lens 1670.

[0510] Additionally, a recurved point can be formed on the image-side surface of the seventh lens 1670. For example, the image-side surface of the seventh lens 1670 can be concave in the paraxial region and convex towards the edge of the image-side surface of the seventh lens 1670.

[0511] although Figure 31 The aperture is not shown, but it is set at a distance of 0.919 mm from the object side of the first lens 1610 toward the image side of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the TTL and SL values ​​of Example 16 listed in Table 55, which will be presented later in this application.

[0512] Table 31 below shows the composition Figure 31 The physical properties of the lenses and other components of the optical imaging system are shown in Table 32 below. Figure 31 The aspherical surface coefficient of the lens. Figure 31 Both surfaces of all the lenses are aspherical.

[0513] Table 31

[0514]

[0515]

[0516] Table 32

[0517] K A B C D E F G H S1 0.1283 -0.0055 0.0045 -0.018 0.0078 0.0301 -0.063 0.046 -0.013 S2 -30.976 -0.0561 0.0444 0.0388 -0.2372 0.4368 -0.4385 0.2311 -0.0505 S3 -55.147 -0.0853 0.0161 0.2247 -0.6095 0.9607 -0.9142 0.4783 -0.1042 S4 -6.2418 -0.0492 0.0165 0.1209 -0.3038 0.4429 -0.3247 0.1012 0.0018 S5 1.4715 -0.0198 0.0181 -0.2874 0.8872 -1.6138 1.7719 -1.012 0.234 S6 -2.9758 -0.0369 0.0559 -0.2665 0.6033 -0.9754 0.967 -0.4745 0.0967 S7 -55.862 -0.1542 0.1102 -0.4806 1.1073 -1.6589 1.3653 -0.5002 0.0586 S8 -87.891 -0.144 0.1419 -0.5705 1.2436 -1.7221 1.4048 -0.6059 0.1078 S9 5.6449 -0.0669 0.1168 -0.4406 0.758 -0.7688 0.403 -0.0844 0 S10 28.194 -0.1694 0.0795 -0.1626 0.3248 -0.3223 0.1516 -0.0266 0 S11 -29.003 0.0237 -0.2637 0.2396 -0.1608 0.0735 -0.0259 0.0049 0 S12 -43.551 0.0645 -0.1366 0.0918 -0.0389 0.0101 -0.0014 8E-05 0 S13 -0.6727 -0.4248 0.2545 -0.086 0.0183 -0.0024 0.0002 -9E-06 2E-07 S14 -0.8377 -0.3391 0.2016 -0.0975 0.0328 -0.0071 0.0009 -6E-05 2E-06

[0518] Example 17

[0519] Figure 33 This is a view showing the seventeenth example of an optical imaging system, and Figure 34 It shows Figure 33 Aberration curves of optical imaging systems.

[0520] The seventeenth example of an optical imaging system may include a first lens 1710, a second lens 1720, a third lens 1730, a fourth lens 1740, a fifth lens 1750, a sixth lens 1760, a seventh lens 1770, a filter 1780, an image sensor 1790, and an aperture (not shown) disposed between the object side and the first lens 1710.

[0521] The first lens 1710 may have positive refractive power, and the object side of the first lens 1710 may bulge in the paraxial region and the image side of the first lens 1710 may be concave in the paraxial region.

[0522] The second lens 1720 may have negative refractive power, and the object side of the second lens 1720 may bulge in the paraxial region and the image side of the second lens 1720 may be concave in the paraxial region.

[0523] The third lens 1730 may have positive refractive power, and the object side of the third lens 1730 may bulge in the paraxial region and the image side of the third lens 1730 may be concave in the paraxial region.

[0524] The fourth lens 1740 may have positive refractive power, and the object side of the fourth lens 1740 may bulge in the paraxial region and the image side of the fourth lens 1740 may be concave in the paraxial region.

[0525] The fifth lens 1750 may have negative refractive power, and the object side of the fifth lens 1750 may be concave in the paraxial region and the image side of the fifth lens 1750 may be convex in the paraxial region.

[0526] The sixth lens 1760 may have negative refractive power, and the object side of the sixth lens 1760 may bulge in the paraxial region and the image side of the sixth lens 1760 may be concave in the paraxial region.

[0527] The seventh lens 1770 may have negative refractive power, and the object side of the seventh lens 1770 may bulge in the paraxial region and the image side of the seventh lens 1770 may be concave in the paraxial region.

[0528] Additionally, a recurved point can be formed on the object-side surface of the seventh lens 1770. For example, the object-side surface of the seventh lens 1770 can bulge in the paraxial region and become concave towards the edge of the object-side surface of the seventh lens 1770.

[0529] Additionally, a recurved point can be formed on the image-side surface of the seventh lens 1770. For example, the image-side surface of the seventh lens 1770 can be concave in the paraxial region and convex towards the edge of the image-side surface of the seventh lens 1770.

[0530] although Figure 33 The aperture is not shown, but it is set at a distance of 0.250 mm from the object side of the first lens 1710 toward the image side of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the TTL and SL values ​​of Example 17 listed in Table 55, which will be presented later in this application.

[0531] Table 33 below shows the composition Figure 33 The physical properties of the lenses and other components of the optical imaging system are shown in Table 34 below. Figure 33 The aspherical surface coefficient of the lens. Figure 33 Both surfaces of all the lenses are aspherical.

[0532] Table 33

[0533]

[0534]

[0535] Table 34

[0536] K A B C D E F G H S1 0.0432 -0.0088 0.0131 -0.0627 0.1199 -0.1345 0.077 -0.018 -0.0004 S2 -26.097 -0.0562 0.051 -0.0514 0.0595 -0.0683 0.0462 -0.0139 -7E-05 S3 -99 -0.1283 0.1953 -0.2779 0.5135 -0.8812 0.9662 -0.5723 0.1395 S4 -16.567 -0.0971 0.1552 -0.3608 0.985 -2.059 2.5647 -1.6683 0.4378 S5 -1.6774 -0.0377 0.065 -0.4515 1.687 -3.5163 4.2391 -2.6607 0.6752 S6 57.913 -0.0559 0.0533 -0.341 1.3373 -2.8539 3.4811 -2.2114 0.5781 S7 -66.305 -0.1749 -0.0635 0.0963 -0.2061 0.5819 -0.9 0.6874 -0.1979 S8 19.549 -0.1228 -0.0686 0.0207 0.1647 -0.2695 0.1725 -0.0616 0.0161 S9 29.709 -0.0709 0.0826 -0.3062 0.6009 -0.6459 0.3344 -0.0761 0 S10 -31.338 -0.1255 0.1076 -0.1494 0.1908 -0.1423 0.0506 -0.0065 0 S11 -46.453 0.0038 -0.1455 0.1534 -0.126 0.0705 -0.0225 0.0029 0 S12 -31.504 0.0093 -0.0326 0.0149 -0.0033 0.0003 -1E-05 -7E-07 0 S13 -0.5233 -0.2947 0.1709 -0.0627 0.0154 -0.0025 0.0003 -1E-05 3E-07 S14 -0.8257 -0.2584 0.1353 -0.0565 0.0166 -0.0032 0.0004 -3E-05 7E-07

[0537] Example 18

[0538] Figure 35 This is a view showing the eighteenth example of an optical imaging system, and Figure 36 It shows Figure 35 Aberration curves of optical imaging systems.

[0539] An eighteenth example of an optical imaging system may include a first lens 1810, a second lens 1820, a third lens 1830, a fourth lens 1840, a fifth lens 1850, a sixth lens 1860, a seventh lens 1870, a filter 1880, an image sensor 1890, and an aperture (not shown) disposed between the first lens 1810 and the second lens 1820.

[0540] The first lens 1810 may have positive refractive power, and the object side of the first lens 1810 may bulge in the paraxial region and the image side of the first lens 1810 may be concave in the paraxial region.

[0541] The second lens 1820 may have negative refractive power, and the object side of the second lens 1820 may bulge in the paraxial region and the image side of the second lens 1820 may be concave in the paraxial region.

[0542] The third lens 1830 may have positive refractive power, and the object side of the third lens 1830 may bulge in the paraxial region and the image side of the third lens 1830 may be concave in the paraxial region.

[0543] The fourth lens 1840 may have positive refractive power, and the object side of the fourth lens 1840 may bulge in the paraxial region and the image side of the fourth lens 1840 may be concave in the paraxial region.

[0544] The fifth lens 1850 may have positive refractive power, and the object side of the fifth lens 1850 may be concave in the paraxial region and the image side of the fifth lens 1850 may be convex in the paraxial region.

[0545] The sixth lens 1860 can have positive refractive power, and the object side and image side of the sixth lens 1860 can bulge in the paraxial region.

[0546] The seventh lens 1870 can have negative refractive power, and the object side and image side of the seventh lens 1870 can be concave in the paraxial region.

[0547] Additionally, a recurved point can be formed on the object-side surface of the seventh lens 1870. For example, the object-side surface of the seventh lens 1870 can be concave in the paraxial region and convex towards the edge of the object-side surface of the seventh lens 1870.

[0548] Additionally, a recurved point can be formed on the image-side surface of the seventh lens 1870. For example, the image-side surface of the seventh lens 1870 can be concave in the paraxial region and convex towards the edge of the image-side surface of the seventh lens 1870.

[0549] although Figure 35 The aperture is not shown, but it is set at a distance of 0.768 mm from the object side of the first lens 1810 toward the image side of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the TTL and SL values ​​of Example 18 listed in Table 55, which will be presented later in this application.

[0550] Table 35 below shows the composition Figure 35 The physical properties of the lenses and other components of the optical imaging system are shown in Table 36 below. Figure 35The aspherical surface coefficient of the lens. Figure 35 Both surfaces of all the lenses are aspherical.

[0551] Table 35

[0552]

[0553] Table 36

[0554]

[0555]

[0556] Example 19

[0557] Figure 37 This is a view illustrating the nineteenth example of an optical imaging system, and Figure 38 It shows Figure 37 Aberration curves of optical imaging systems.

[0558] A nineteenth example of an optical imaging system may include a first lens 1910, a second lens 1920, a third lens 1930, a fourth lens 1940, a fifth lens 1950, a sixth lens 1960, a seventh lens 1970, a filter 1980, an image sensor 1990, and an aperture (not shown) disposed between the first lens 1910 and the second lens 1920.

[0559] The first lens 1910 may have positive refractive power, and the object side of the first lens 1910 may bulge in the paraxial region and the image side of the first lens 1910 may be concave in the paraxial region.

[0560] The second lens 1920 may have negative refractive power, and the object side of the second lens 1920 may bulge in the paraxial region and the image side of the second lens 1920 may be concave in the paraxial region.

[0561] The third lens 1930 may have positive refractive power, and the object side of the third lens 1930 may bulge in the paraxial region and the image side of the third lens 1930 may be concave in the paraxial region.

[0562] The fourth lens 1940 may have positive refractive power, and the object side and image side of the fourth lens 1940 may bulge in the paraxial region.

[0563] The fifth lens 1950 may have negative refractive power, and the object side of the fifth lens 1950 may be concave in the paraxial region and the image side of the fifth lens 1950 may be convex in the paraxial region.

[0564] The sixth lens 1960 can have positive refractive power, and the object side and image side of the sixth lens 1960 can bulge in the paraxial region.

[0565] The seventh lens 1970 can have negative refractive power, and the object side and image side of the seventh lens 1970 can be concave in the paraxial region.

[0566] Additionally, a recurved point can be formed on the object-side surface of the seventh lens 1970. For example, the object-side surface of the seventh lens 1970 can be concave in the paraxial region and convex towards the edge of the object-side surface of the seventh lens 1970.

[0567] Additionally, a recurved point can be formed on the image-side surface of the seventh lens 1970. For example, the image-side surface of the seventh lens 1970 can be concave in the paraxial region and convex towards the edge of the image-side surface of the seventh lens 1970.

[0568] although Figure 37 The aperture is not shown, but it is set at a distance of 0.624 mm from the object side of the first lens 1910 toward the image side of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the TTL and SL values ​​of Example 19 listed in Table 55, which will be presented later in this application.

[0569] Table 37 below shows the composition Figure 37 The physical properties of the lenses and other components of the optical imaging system are shown in Table 38 below. Figure 37 The aspherical surface coefficient of the lens. Figure 37 Both surfaces of all the lenses are aspherical.

[0570] Table 37

[0571]

[0572] Table 38

[0573]

[0574]

[0575] Example 20

[0576] Figure 39 This is a view showing the twentieth example of an optical imaging system, and Figure 40 It shows Figure 39 Aberration curves of optical imaging systems.

[0577] A twentieth example of an optical imaging system may include a first lens 2010, a second lens 2020, a third lens 2030, a fourth lens 2040, a fifth lens 2050, a sixth lens 2060, a seventh lens 2070, a filter 2080, an image sensor 2090, and an aperture stop (not shown) disposed between the first lens 2010 and the second lens 2020.

[0578] The first lens 2010 may have positive refractive power, and the object side of the first lens 2010 may bulge in the paraxial region and the image side of the first lens 2010 may be concave in the paraxial region.

[0579] The second lens 2020 may have negative refractive power, and the object side of the second lens 2020 may bulge in the paraxial region and the image side of the second lens 2020 may be concave in the paraxial region.

[0580] The third lens 2030 may have negative refractive power, and the object side of the third lens 2030 may bulge in the paraxial region and the image side of the third lens 2030 may be concave in the paraxial region.

[0581] The fourth lens 2040 may have positive refractive power, and the object side of the fourth lens 2040 may bulge in the paraxial region and the image side of the fourth lens 2040 may be concave in the paraxial region.

[0582] The fifth lens 2050 may have positive refractive power, and the object side of the fifth lens 2050 may be concave in the paraxial region and the image side of the fifth lens 2050 may be convex in the paraxial region.

[0583] The sixth lens 2060 may have positive refractive power, and the object side and image side of the sixth lens 2060 may bulge in the paraxial region.

[0584] The seventh lens 2070 may have negative refractive power, and the object side and image side of the seventh lens 2070 may be concave in the paraxial region.

[0585] Additionally, a recurved point can be formed on the image-side surface of the seventh lens 2070. For example, the image-side surface of the seventh lens 2070 can be concave in the paraxial region and convex towards the edge of the image-side surface of the seventh lens 2070.

[0586] although Figure 39 The aperture is not shown, but it is set at a distance of 0.641 mm from the object side of the first lens 2010 toward the image side of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the TTL and SL values ​​of Example 20 listed in Table 55, which will be presented later in this application.

[0587] Table 39 below shows the composition Figure 39The physical properties of the lenses and other components of the optical imaging system are shown in Table 40 below. Figure 39 The aspherical surface coefficient of the lens. Figure 39 Both surfaces of all the lenses are aspherical.

[0588] Table 39

[0589]

[0590] Table 40

[0591]

[0592]

[0593] Example 21

[0594] Figure 41 This is a view showing the twenty-first example of an optical imaging system, and Figure 42 It shows Figure 41 Aberration curves of optical imaging systems.

[0595] The twenty-first example of an optical imaging system may include a first lens 2110, a second lens 2120, a third lens 2130, a fourth lens 2140, a fifth lens 2150, a sixth lens 2160, a seventh lens 2170, a filter 2180, an image sensor 2190, and an aperture (not shown) disposed between the second lens 2120 and the third lens 2130.

[0596] The first lens 2110 may have positive refractive power, and the object side of the first lens 2110 may bulge in the paraxial region and the image side of the first lens 2110 may be concave in the paraxial region.

[0597] The second lens 2120 may have negative refractive power, and the object side of the second lens 2120 may bulge in the paraxial region and the image side of the second lens 2120 may be concave in the paraxial region.

[0598] The third lens 2130 may have negative refractive power, and the object side of the third lens 2130 may bulge in the paraxial region and the image side of the third lens 2130 may be concave in the paraxial region.

[0599] The fourth lens 2140 may have positive refractive power, and the object side and image side of the fourth lens 2140 may bulge in the paraxial region.

[0600] The fifth lens 2150 may have negative refractive power, and the object side of the fifth lens 2150 may be concave in the paraxial region and the image side of the fifth lens 2150 may be convex in the paraxial region.

[0601] The sixth lens 2160 may have negative refractive power, and the object side of the sixth lens 2160 may bulge in the paraxial region and the image side of the sixth lens 2160 may be concave in the paraxial region.

[0602] The seventh lens 2170 may have negative refractive power, and the object side of the seventh lens 2170 may bulge in the paraxial region and the image side of the seventh lens 2170 may be concave in the paraxial region.

[0603] Additionally, a recurved point may be formed on the object-side surface of the seventh lens 2170. For example, the object-side surface of the seventh lens 2170 may bulge in the paraxial region and become concave towards the edge of the object-side surface of the seventh lens 2170.

[0604] Additionally, a recurved point can be formed on the image-side surface of the seventh lens 2170. For example, the image-side surface of the seventh lens 2170 can be concave in the paraxial region and convex towards the edge of the image-side surface of the seventh lens 2170.

[0605] although Figure 41 The aperture is not shown, but it is set at a distance of 1.070 mm from the object side of the first lens 2110 toward the image side of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the TTL and SL values ​​of Example 21 listed in Table 55, which will be presented later in this application.

[0606] Table 41 below shows the composition Figure 41 The physical properties of the lenses and other components of the optical imaging system are shown in Table 42 below. Figure 41 The aspherical surface coefficient of the lens. Figure 41 Both surfaces of all the lenses are aspherical.

[0607] Table 41

[0608]

[0609] Table 42

[0610]

[0611]

[0612] Example 22

[0613] Figure 43 This is a view showing the twenty-second example of an optical imaging system, and Figure 44 It shows Figure 43 Aberration curves of optical imaging systems.

[0614] A twenty-second example of an optical imaging system may include a first lens 2210, a second lens 2220, a third lens 2230, a fourth lens 2240, a fifth lens 2250, a sixth lens 2260, a seventh lens 2270, a filter 2280, an image sensor 2290, and an aperture (not shown) disposed between the second lens 2220 and the third lens 2230.

[0615] The first lens 2210 may have positive refractive power, and the object side of the first lens 2210 may bulge in the paraxial region and the image side of the first lens 2210 may be concave in the paraxial region.

[0616] The second lens 2220 may have negative refractive power, and the object side of the second lens 2220 may bulge in the paraxial region and the image side of the second lens 2220 may be concave in the paraxial region.

[0617] The third lens 2230 may have negative refractive power, and the object side of the third lens 2230 may bulge in the paraxial region and the image side of the third lens 2230 may be concave in the paraxial region.

[0618] The fourth lens 2240 may have positive refractive power, and the object side and image side of the fourth lens 2240 may bulge in the paraxial region.

[0619] The fifth lens 2250 may have negative refractive power, and the object side of the fifth lens 2250 may be concave in the paraxial region and the image side of the fifth lens 2250 may be convex in the paraxial region.

[0620] The sixth lens 2260 may have negative refractive power, and the object side of the sixth lens 2260 may bulge in the paraxial region and the image side of the sixth lens 2260 may be concave in the paraxial region.

[0621] The seventh lens 2270 may have negative refractive power, and the object side of the seventh lens 2270 may bulge in the paraxial region and the image side of the seventh lens 2270 may be concave in the paraxial region.

[0622] Additionally, a recurved point may be formed on the object-side surface of the seventh lens 2270. For example, the object-side surface of the seventh lens 2270 may bulge in the paraxial region and become concave towards the edge of the object-side surface of the seventh lens 2270.

[0623] Additionally, a recurved point can be formed on the image-side surface of the seventh lens 2270. For example, the image-side surface of the seventh lens 2270 can be concave in the paraxial region and convex towards the edge of the image-side surface of the seventh lens 2270.

[0624] although Figure 43The aperture is not shown, but it is set at a distance of 1.050 mm from the object side of the first lens 2210 toward the image side of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the TTL and SL values ​​of Example 22 listed in Table 55, which will be presented later in this application.

[0625] Table 43 below shows the composition Figure 43 The physical properties of the lenses and other components of the optical imaging system are shown in Table 44 below. Figure 43 The aspherical surface coefficient of the lens. Figure 43 Both surfaces of all the lenses are aspherical.

[0626] Table 43

[0627]

[0628]

[0629] Table 44

[0630] K A B C D E F G H S1 -0.2038 0.0111 0.0146 -0.0331 0.0534 -0.0486 0.023 -0.0046 0 S2 30.534 -0.0868 0.313 -0.693 0.872 -0.655 0.273 -0.0496 0 S3 -2.347 -0.114 0.3865 -0.8113 1.0115 -0.741 0.3021 -0.0538 0 S4 -0.7241 -0.0836 0.1372 -0.1055 -0.0097 0.1953 -0.1778 0.0592 0 S5 3.0804 -0.1259 0.1776 -0.2375 0.4049 -0.4425 0.2969 -0.0837 0 S6 10.659 -0.1644 0.1692 -0.1502 0.1444 -0.0762 0.0151 -0.0003 0 S7 21.918 -0.0617 0.0459 -0.0379 0.0564 -0.0364 0.0097 -0.0009 0 S8 25.736 -0.0713 0.0217 -0.0106 0.0072 -0.0023 0.0003 -2E-05 0 S9 1.6857 -0.1436 0.2565 -0.4332 0.4184 -0.2461 0.0826 -0.0124 0 S10 75.072 -0.1186 0.1217 -0.1545 0.1026 -0.0332 0.005 -0.0003 0 S11 -52.836 0.0701 -0.2199 0.2058 -0.1343 0.0526 -0.0106 0.0009 0 S12 -34.09 0.0153 -0.0851 0.0637 -0.0302 0.0086 -0.0013 8E-05 0 S13 -0.9427 -0.3217 0.0977 -0.0029 -0.0058 0.0017 -0.0002 2E-05 -4E-07 S14 -1.0048 -0.2798 0.1282 -0.0461 0.0122 -0.0022 0.0002 -1E-05 4E-07

[0631] Example 23

[0632] Figure 45 This is a view showing the twenty-third example of an optical imaging system, and Figure 46 It shows Figure 45 Aberration curves of optical imaging systems.

[0633] The twenty-third example of an optical imaging system may include a first lens 2310, a second lens 2320, a third lens 2330, a fourth lens 2340, a fifth lens 2350, a sixth lens 2360, a seventh lens 2370, a filter 2380, an image sensor 2390, and an aperture (not shown) disposed between the second lens 2320 and the third lens 2330.

[0634] The first lens 2310 may have positive refractive power, and the object side of the first lens 2310 may bulge in the paraxial region and the image side of the first lens 2310 may be concave in the paraxial region.

[0635] The second lens 2320 may have positive refractive power, and the object side of the second lens 2320 may bulge in the paraxial region and the image side of the second lens 2320 may be concave in the paraxial region.

[0636] The third lens 2330 may have negative refractive power, and the object side of the third lens 2330 may bulge in the paraxial region and the image side of the third lens 2330 may be concave in the paraxial region.

[0637] The fourth lens 2340 may have positive refractive power, and the object side of the fourth lens 2340 may bulge in the paraxial region and the image side of the fourth lens 2340 may be concave in the paraxial region.

[0638] The fifth lens 2350 may have negative refractive power, and the object side of the fifth lens 2350 may bulge in the paraxial region and the image side of the fifth lens 2350 may be concave in the paraxial region.

[0639] The sixth lens 2360 may have positive refractive power, and the object side of the sixth lens 2360 may bulge in the paraxial region and the image side of the sixth lens 2360 may be concave in the paraxial region.

[0640] The seventh lens 2370 may have positive refractive power, and the object side of the seventh lens 2370 may bulge in the paraxial region and the image side of the seventh lens 2370 may be concave in the paraxial region.

[0641] Additionally, two inflection points can be formed on the object-side surface of the seventh lens 2370. For example, the object-side surface of the seventh lens 2370 can bulge in the paraxial region, become concave in the region outside the paraxial region, and bulge towards the edge of the object-side surface of the seventh lens 2370.

[0642] Additionally, a curvature point can be formed on the image-side surface of the seventh lens 2370. For example, the image-side surface of the seventh lens 2370 can be concave in the paraxial region and convex towards the edge of the image-side surface of the seventh lens 2370.

[0643] although Figure 45 The aperture is not shown, but it is set at a distance of 1.082 mm from the object side of the first lens 2310 toward the image side of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the TTL and SL values ​​of Example 23 listed in Table 55, which will be presented later in this application.

[0644] Table 45 below shows the composition Figure 45 The physical properties of the lenses and other components of the optical imaging system are shown in Table 46 below. Figure 45 The aspherical surface coefficient of the lens. Figure 45 Both surfaces of all the lenses are aspherical.

[0645] Table 45

[0646]

[0647]

[0648] Table 46

[0649] K A B C D E F G H J S1 -0.9157 -0.0242 0.04834 -0.0925 0.03855 0.05774 -0.0925 0.05787 -0.0178 0.0022 S2 -12.376 0.06268 -0.1415 -0.3392 0.89911 -0.7358 0.18342 0.07554 -0.0533 0.00878 S3 -0.8319 0.03105 -0.03 -0.6522 1.49233 -1.3976 0.63517 -0.1105 -0.0112 0.00479 S4 -7.367 -0.1852 1.71789 -6.8471 14.8214 -19.261 15.4645 -7.5184 2.03069 -0.2341 S5 12.337 -0.2536 1.74889 -6.6898 14.6458 -19.491 16.0712 -8.0307 2.2327 -0.2657 S6 1.14541 -0.0901 0.21678 -0.6218 1.45024 -2.2709 2.26343 -1.3948 0.48954 -0.0747 S7 -12.034 0.04238 -0.6838 2.52889 -5.5859 7.65595 -6.5535 3.38285 -0.9545 0.11242 S8 5.85918 -0.0168 -0.1532 0.44792 -0.9325 1.23635 -1.0356 0.53063 -0.1517 0.01866 S9 -43.521 0.01961 0.0447 -0.1445 0.17405 -0.1293 0.05892 -0.0164 0.00257 -0.0002 S10 -9.9703 -0.0233 -0.0527 0.08206 -0.0601 0.02462 -0.0062 0.00098 -9E-05 3.5E-06 S11 -16.199 0.13832 -0.3024 0.30558 -0.2185 0.10175 -0.0304 0.00571 -0.0006 2.9E-05 S12 0.01179 -0.0979 0.0662 -0.0617 0.03374 -0.0119 0.00278 -0.0004 3.3E-05 -1E-06 S13 -0.8414 -0.3646 0.15334 -0.0353 0.00329 0.00039 -0.0001 1.6E-05 -8E-07 1.3E-08 S14 -1.4251 -0.2584 0.13506 -0.0538 0.01612 -0.0034 0.00047 -4E-05 1.9E-06 -4E-08

[0650] Example 24

[0651] Figure 47 This is a view showing the twenty-fourth example of an optical imaging system, and Figure 48 It shows Figure 47 Aberration curves of optical imaging systems.

[0652] The twenty-fourth example of an optical imaging system may include a first lens 2410, a second lens 2420, a third lens 2430, a fourth lens 2440, a fifth lens 2450, a sixth lens 2460, a seventh lens 2470, a filter 2480, an image sensor 2490, and an aperture (not shown) disposed between the second lens 2420 and the third lens 2430.

[0653] The first lens 2410 may have positive refractive power, and the object side of the first lens 2410 may bulge in the paraxial region and the image side of the first lens 2410 may be concave in the paraxial region.

[0654] The second lens 2420 may have negative refractive power, and the object side of the second lens 2420 may bulge in the paraxial region and the image side of the second lens 2420 may be concave in the paraxial region.

[0655] The third lens 2430 may have negative refractive power, and the object side of the third lens 2430 may bulge in the paraxial region and the image side of the third lens 2430 may be concave in the paraxial region.

[0656] The fourth lens 2440 may have positive refractive power, and the object side of the fourth lens 2440 may bulge in the paraxial region and the image side of the fourth lens 2440 may be concave in the paraxial region.

[0657] The fifth lens 2450 may have negative refractive power, and the object side of the fifth lens 2450 may bulge in the paraxial region and the image side of the fifth lens 2450 may be concave in the paraxial region.

[0658] The sixth lens 2460 may have negative refractive power, and the object side and image side of the sixth lens 2460 may be concave in the paraxial region.

[0659] The seventh lens 2470 may have positive refractive power, and the object side of the seventh lens 2470 may bulge in the paraxial region and the image side of the seventh lens 2470 may be concave in the paraxial region.

[0660] Additionally, a recurved point may be formed on the object-side surface of the seventh lens 2470. For example, the object-side surface of the seventh lens 2470 may bulge in the paraxial region and become concave towards the edge of the object-side surface of the seventh lens 2470.

[0661] Additionally, a recurved point can be formed on the image-side surface of the seventh lens 2470. For example, the image-side surface of the seventh lens 2470 can be concave in the paraxial region and convex towards the edge of the image-side surface of the seventh lens 2470.

[0662] although Figure 47 The aperture is not shown, but it is set at a distance of 0.963 mm from the object side of the first lens 2410 toward the image side of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the TTL and SL values ​​of Example 24 listed in Table 55, which will be presented later in this application.

[0663] Table 47 below shows the composition Figure 47 The physical properties of the lenses and other components of the optical imaging system are shown in Table 48 below. Figure 47 The aspherical surface coefficient of the lens. Figure 47 Both surfaces of all the lenses are aspherical.

[0664] Table 47

[0665]

[0666]

[0667] Table 48

[0668]

[0669] Example 25

[0670] Figure 49 This is a view showing the twenty-fifth example of an optical imaging system, and Figure 50 It shows Figure 49 Aberration curves of optical imaging systems.

[0671] The twenty-fifth example of an optical imaging system may include a first lens 2510, a second lens 2520, a third lens 2530, a fourth lens 2540, a fifth lens 2550, a sixth lens 2560, a seventh lens 2570, a filter 2580, an image sensor 2590, and an aperture (not shown) disposed between the second lens 2520 and the third lens 2530.

[0672] The first lens 2510 may have positive refractive power, and the object side of the first lens 2510 may bulge in the paraxial region and the image side of the first lens 2510 may be concave in the paraxial region.

[0673] The second lens 2520 may have negative refractive power, and the object side of the second lens 2520 may bulge in the paraxial region and the image side of the second lens 2520 may be concave in the paraxial region.

[0674] The third lens 2530 may have positive refractive power, and the object side of the third lens 2530 may be concave in the paraxial region and the image side of the third lens 2530 may be convex in the paraxial region.

[0675] The fourth lens 2540 may have negative refractive power, and the object side of the fourth lens 2540 may bulge in the paraxial region and the image side of the fourth lens 2540 may be concave in the paraxial region.

[0676] The fifth lens 2550 may have positive refractive power, and the object side of the fifth lens 2550 may be concave in the paraxial region and the image side of the fifth lens 2550 may be convex in the paraxial region.

[0677] The sixth lens 2560 may have positive refractive power, and the object side of the sixth lens 2560 may be concave in the paraxial region and the image side of the sixth lens 2560 may be convex in the paraxial region.

[0678] The seventh lens 2570 may have negative refractive power, and the object side and image side of the seventh lens 2570 may be concave in the paraxial region.

[0679] Additionally, a recurved point can be formed on the image-side surface of the seventh lens 2570. For example, the image-side surface of the seventh lens 2570 can be concave in the paraxial region and convex towards the edge of the image-side surface of the seventh lens 2570.

[0680] although Figure 49 The aperture is not shown, but it is set at a distance of 0.872 mm from the object side of the first lens 2510 toward the image side of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the TTL and SL values ​​of Example 25 listed in Table 55, which will be presented later in this application.

[0681] Table 49 below shows the composition Figure 49 The physical properties of the lenses and other components of the optical imaging system are shown in Table 50 below. Figure 49 The aspherical surface coefficient of the lens.

[0682] Table 49

[0683]

[0684]

[0685] Table 50

[0686]

[0687] Example 26

[0688] Figure 51 This is a view showing the twenty-sixth example of an optical imaging system, and Figure 52 It shows Figure 51 Aberration curves of optical imaging systems.

[0689] The twenty-sixth example of an optical imaging system may include a first lens 2610, a second lens 2620, a third lens 2630, a fourth lens 2640, a fifth lens 2650, a sixth lens 2660, a seventh lens 2670, a filter 2680, an image sensor 2690, and an aperture (not shown) disposed between the second lens 2620 and the third lens 2630.

[0690] The first lens 2610 may have positive refractive power, and the object side of the first lens 2610 may bulge in the paraxial region and the image side of the first lens 2610 may be concave in the paraxial region.

[0691] The second lens 2620 may have negative refractive power, and the object side of the second lens 2620 may bulge in the paraxial region and the image side of the second lens 2620 may be concave in the paraxial region.

[0692] The third lens 2630 may have positive refractive power, and the object side of the third lens 2630 may be concave in the paraxial region and the image side of the third lens 2630 may be convex in the paraxial region.

[0693] The fourth lens 2640 may have positive refractive power, and the object side of the fourth lens 2640 may bulge in the paraxial region and the image side of the fourth lens 2640 may be concave in the paraxial region.

[0694] The fifth lens 2650 may have negative refractive power, and the object side of the fifth lens 2650 may bulge in the paraxial region and the image side of the fifth lens 2650 may be concave in the paraxial region.

[0695] The sixth lens 2660 may have positive refractive power, and the object side of the sixth lens 2660 may bulge in the paraxial region and the image side of the sixth lens 2660 may be concave in the paraxial region.

[0696] The seventh lens 2670 may have positive refractive power, and the object side of the seventh lens 2670 may bulge in the paraxial region and the image side of the seventh lens 2670 may be concave in the paraxial region.

[0697] Additionally, two inflection points can be formed on the object-side surface of the seventh lens 2670. For example, the object-side surface of the seventh lens 2670 can bulge in the paraxial region, become concave in the region outside the paraxial region, and bulge towards the edge of the object-side surface of the seventh lens 2670.

[0698] Additionally, a recurved point can be formed on the image-side surface of the seventh lens 2670. For example, the image-side surface of the seventh lens 2670 can be concave in the paraxial region and convex towards the edge of the image-side surface of the seventh lens 2670.

[0699] although Figure 51 The aperture is not shown, but it is set at a distance of 0.866 mm from the object side of the first lens 2610 toward the image side of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the TTL and SL values ​​of Example 26 listed in Table 55, which will be presented later in this application.

[0700] Table 51 below shows the composition Figure 51 The physical properties of the lenses and other components of the optical imaging system are shown in Table 52 below. Figure 51 The aspherical surface coefficient of the lens.

[0701] Table 51

[0702]

[0703] Table 52

[0704]

[0705]

[0706] Example 27

[0707] Figure 53 This is a view showing the twenty-seventh example of an optical imaging system, and Figure 54 It shows Figure 53 Aberration curves of optical imaging systems.

[0708] The twenty-seventh example of an optical imaging system may include a first lens 2710, a second lens 2720, a third lens 2730, a fourth lens 2740, a fifth lens 2750, a sixth lens 2760, a seventh lens 2770, a filter 2780, an image sensor 2790, and an aperture (not shown) disposed between the second lens 2720 and the third lens 2730.

[0709] The first lens 2710 may have positive refractive power, and the object side of the first lens 2710 may bulge in the paraxial region and the image side of the first lens 2710 may be concave in the paraxial region.

[0710] The second lens 2720 may have negative refractive power, and the object side of the second lens 2720 may bulge in the paraxial region and the image side of the second lens 2720 may be concave in the paraxial region.

[0711] The third lens 2730 may have positive refractive power, and the object side of the third lens 2730 may be concave in the paraxial region and the image side of the third lens 2730 may be convex in the paraxial region.

[0712] The fourth lens 2740 may have positive refractive power, and the object side of the fourth lens 2740 may bulge in the paraxial region and the image side of the fourth lens 2740 may be concave in the paraxial region.

[0713] The fifth lens 2750 may have negative refractive power, and the object side of the fifth lens 2750 may bulge in the paraxial region and the image side of the fifth lens 2750 may be concave in the paraxial region.

[0714] The sixth lens 2760 may have positive refractive power, and the object side of the sixth lens 2760 may bulge in the paraxial region and the image side of the sixth lens 2760 may be concave in the paraxial region.

[0715] The seventh lens 2770 may have positive refractive power, and the object side of the seventh lens 2770 may bulge in the paraxial region and the image side of the seventh lens 2770 may be concave in the paraxial region.

[0716] Additionally, two inflection points can be formed on the object-side surface of the seventh lens 2770. For example, the object-side surface of the seventh lens 2770 can bulge in the paraxial region, become concave in the region outside the paraxial region, and bulge towards the edge of the object-side surface of the seventh lens 2770.

[0717] Additionally, a recurved point can be formed on the image-side surface of the seventh lens 2770. For example, the image-side surface of the seventh lens 2770 can be concave in the paraxial region and convex towards the edge of the image-side surface of the seventh lens 2770.

[0718] although Figure 53 The aperture is not shown, but it is set at a distance of 0.904 mm from the object side of the first lens 2710 toward the image side of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the TTL and SL values ​​of Example 27 listed in Table 55, which will be presented later in this application.

[0719] Table 53 below shows the composition Figure 53 The physical properties of the lenses and other components of the optical imaging system are shown in Table 54 below. Figure 53 The aspherical surface coefficient of the lens.

[0720] Table 53

[0721]

[0722] Table 54

[0723]

[0724]

[0725] Table 55 below shows the total focal length f, the total length TTL (distance from the object side of the first lens to the imaging plane), the distance SL from the aperture stop to the imaging plane, the f-number (F No.) (the total focal length f divided by the entrance pupil diameter, where f and entrance pupil diameter are both expressed in mm), the image height on the imaging plane (Img HT) (half the diagonal length of the imaging plane), and the field of view (FOV) of the optical imaging system for each of the examples 1 to 27 described in this application. The values ​​of f, TTL, SL, and Img HT are expressed in mm. The value of F No. is dimensionless. The value of FOV is expressed in degrees.

[0726] Table 55

[0727]

[0728]

[0729] Table 56 below shows the focal lengths, in mm, of the first lens f1, the second lens f2, the third lens f3, the fourth lens f4, the fifth lens f5, the sixth lens f6, and the seventh lens f7 for each of the examples 1 to 27 described in this application.

[0730] Table 56

[0731]

[0732]

[0733] Table 57 below shows, in mm, the edge thickness (L1edgeT) of the first lens, the edge thickness (L2edgeT) of the second lens, the edge thickness (L3edgeT) of the third lens, the edge thickness (L4edgeT) of the fourth lens, the edge thickness (L5edgeT) of the fifth lens, the edge thickness (L6edgeT) of the sixth lens, and the edge thickness (L7edgeT) of the seventh lens for each of the examples 1 to 27 described in this application.

[0734] Table 57

[0735]

[0736]

[0737] Table 58 below shows, in mm, the sag value (L5S1 sag) at the far end of the optical portion on the object side of the fifth lens, the sag value (L5S2 sag) at the far end of the optical portion on the image side of the fifth lens, the thickness (Yc71P1) of the seventh lens at the first inflection point on the object side of the seventh lens, the thickness (Yc71P2) of the seventh lens at the second inflection point on the object side of the seventh lens, and the thickness (Yc72P1) of the seventh lens at the first inflection point on the image side of the seventh lens.

[0738] Table 58

[0739]

[0740]

[0741] Table 59 below shows the inner diameter of each of the first to seventh spacers in each of the examples 1 to 27 described in this application. S1d is the inner diameter of the first spacer SP1, S2d is the inner diameter of the second spacer SP2, S3d is the inner diameter of the third spacer SP3, S4d is the inner diameter of the fourth spacer SP4, S5d is the inner diameter of the fifth spacer SP5, S6d is the inner diameter of the sixth spacer SP6, and S7d is the inner diameter of the seventh spacer SP7.

[0742] Table 59

[0743]

[0744]

[0745] Table 60 below shows the mm values ​​for each of Examples 1 to 27 described in this application. 3 L1v represents the volume of each of the first through seventh lenses. L2v is the volume of the first lens, L3v is the volume of the third lens, L4v is the volume of the fourth lens, L5v is the volume of the fifth lens, L6v is the volume of the sixth lens, and L7v is the volume of the seventh lens.

[0746] Table 60

[0747]

[0748]

[0749] Table 61 below shows the weight, expressed in mg, of each of the first to seventh lenses for each of the examples 1 to 27 described in this application. L1w is the weight of the first lens, L2w is the weight of the second lens, L3w is the weight of the third lens, L4w is the weight of the fourth lens, L5w is the weight of the fifth lens, L6w is the weight of the sixth lens, and L7w is the weight of the seventh lens.

[0750] Table 61

[0751]

[0752]

[0753] Table 62 below shows the total outer diameter (including ribs) of each of the first to seventh lenses, expressed in mm, for each of Examples 1 to 27 described in this application. L1TR is the total outer diameter of the first lens, L2TR is the total outer diameter of the second lens, L3TR is the total outer diameter of the third lens, L4TR is the total outer diameter of the fourth lens, L5TR is the total outer diameter of the fifth lens, L6TR is the total outer diameter of the sixth lens, and L7TR is the total outer diameter of the seventh lens.

[0754] Table 62

[0755]

[0756]

[0757] Table 63 below shows the maximum thickness of the rib, expressed in mm, for each of the first to seventh lenses in each of the examples 1 to 27 described in this application. The maximum thickness of the rib is the thickness of the portion of the rib in contact with the spacer. L1rt is the maximum thickness of the rib of the first lens, L2rt is the maximum thickness of the rib of the second lens, L3rt is the maximum thickness of the rib of the third lens, L4rt is the maximum thickness of the rib of the fourth lens, L5rt is the maximum thickness of the rib of the fifth lens, L6rt is the maximum thickness of the rib of the sixth lens, and L7rt is the maximum thickness of the rib of the seventh lens.

[0758] Table 63

[0759]

[0760]

[0761] Figure 58 This is a cross-sectional view showing an example of the seventh lens.

[0762] Figure 58 The following are shown: the total outer diameter of the seventh lens (L7TR), the thickness of the flat portion of the rib of the seventh lens (L7rt), the thickness of the edge of the seventh lens (L7edgeT), the thickness of the seventh lens at the first inflection point on the object side of the seventh lens (Yc71P1), the thickness of the seventh lens at the second inflection point on the object side of the seventh lens (Yc71P2), and the thickness of the seventh lens at the first inflection point on the image side of the seventh lens (Yc72P1).

[0763] The above examples enable the miniaturization of optical imaging systems and allow aberrations to be easily corrected to achieve high resolution.

[0764] While 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 to these examples without departing from the spirit and scope of the claims and their equivalents. The examples described herein should be considered descriptive only and not for limiting purposes. The description of features or aspects in each example should be considered applicable to similar features or aspects in other examples. Suitable results may also be obtained if the described techniques are performed 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 should not be limited by detailed description but by the claims and their equivalents, and all variations within the scope of the claims and their equivalents should be understood to be included in this disclosure.

Claims

1. An optical imaging system, comprising: The first lens has positive refractive power, a convex object-side surface, and a concave image-side surface; The second lens has negative refractive power, a convex object side, and a concave image side; The third lens has positive refractive power; The fourth lens has negative refractive power, a convex object-side surface, and a concave image-side surface; The fifth lens has refractive power; The sixth lens has positive refractive power; The seventh lens has negative refractive power; and Image sensor, The first to the seventh lenses 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 numerical order. The optical imaging system has a total of seven lenses. Wherein, the optical imaging system satisfies 0.6 < TTL / (2 Img HT) < 0.9, where TTL is the distance along the optical axis from the object side of the first lens to the imaging surface, and Img HT is half the diagonal length of the imaging surface of the image sensor. The optical imaging system satisfies SD12 < SD34, where SD12 is the distance along the optical axis from the image-side surface of the first lens to the object-side surface of the second lens, and SD34 is the distance along the optical axis from the image-side surface of the third lens to the object-side surface of the fourth lens. The optical imaging system also satisfies 0.4 < ΣTD / TTL < 0.7, where ΣTD is the sum of the thicknesses of the first lens to the seventh lens along the optical axis.

2. The optical imaging system according to claim 1, wherein, The optical imaging system satisfies 0.01 < R1 / R4 < 1.3, where R1 is the radius of curvature of the object side of the first lens and R4 is the radius of curvature of the image side of the second lens.

3. The optical imaging system according to claim 2, wherein, The seventh lens has a concave image-side surface, and The optical imaging system satisfies 0.6 < (R11+R14) / (2 R1) < 3.0, where R11 is the radius of curvature of the object side of the sixth lens and R14 is the radius of curvature of the image side of the seventh lens.

4. The optical imaging system according to claim 1, wherein, The optical imaging system also satisfies 0.1 < (1 / f1+1 / f2+1 / f3+1 / f4+1 / f5+1 / f6+1 / f7) f < 0.8, where 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, and f is the total focal length of the optical imaging system.

5. The optical imaging system according to claim 4, wherein, The optical imaging system also satisfies 0.1 < (1 / f1+1 / f2+1 / f3+1 / f4+1 / f5+1 / f6+1 / f7) TTL < 1.

0.

6. The optical imaging system according to claim 1, wherein, The optical imaging system also satisfies 0.2 < TD1 / D67 < 0.8, where TD1 is the thickness of the first lens along the optical axis, and D67 is the distance along the optical axis from the object side of the sixth lens to the image side of the seventh lens.

7. The optical imaging system according to claim 1, wherein, The optical imaging system satisfies SD56 < SD34, where SD56 is the distance along the optical axis from the image-side surface of the fifth lens to the object-side surface of the sixth lens.

8. The optical imaging system according to claim 7, wherein, The optical imaging system satisfies SD56 < SD67, where SD67 is the distance along the optical axis from the image-side surface of the sixth lens to the object-side surface of the seventh lens.

9. The optical imaging system according to claim 1, wherein, The third lens has a concave object-side surface and a convex image-side surface.

10. The optical imaging system according to claim 9, wherein, The fifth lens has positive refractive power.

11. The optical imaging system according to claim 10, wherein, The fifth lens has a concave object-side surface and a convex image-side surface.

12. The optical imaging system according to claim 11, wherein, The seventh lens has a concave image-side surface.

Images