Optical imaging system

Abstract

An optical imaging system, comprising: a first lens having a positive refractive power, a convex object side and a concave image side; a second lens having a negative refractive power, a convex object side and a concave image side; a third lens having a positive refractive power and a convex object side; a fourth lens having a negative refractive power; a fifth lens having a negative refractive power; a sixth lens having a positive refractive power; and a seventh lens having a negative refractive power, wherein the first lens to the seventh lens are sequentially arranged in numerical order along the optical axis of the optical imaging system from the object side of the optical imaging system towards the imaging surface of the optical imaging system, and wherein 0.1 < R1 / R5 < 0.7 is satisfied, where R1 is the radius of curvature of the object side of the first lens, R5 is the radius of curvature of the object side of the third lens, and R1 and R5 are expressed in the same unit of measurement.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the benefit of priority from Korean Patent Application No. 10-2018-0061411 filed on May 29, 2018, in the Korean Intellectual Property Office, and Korean Patent Application No. 10-2018-0106172 filed on September 5, 2018, in the Korean Intellectual Property Office, the disclosures of which are incorporated herein in their entirety by reference for all purposes. Technical Field

[0003] The present application relates to optical imaging systems. Background Art

[0004] Recently, mobile communication terminals have been provided with camera modules to enable video calls and image capture. In addition, as the utilization of camera modules installed in mobile communication terminals increases, camera modules for mobile communication terminals are increasingly required to have high resolution and high performance.

[0005] Therefore, the number of lenses included in the camera module increases. However, since mobile communication terminals mounted with camera modules tend to be miniaturized, it is difficult to arrange the lenses in the camera module.

[0006] Therefore, a technology capable of performing aberration correction to achieve high resolution and arranging a plurality of lenses in a limited space is being studied. Summary of the invention

[0007] The present invention summary is provided to introduce a selection of inventive concepts in a concise form, which concepts will be further described in the following detailed description. The present invention summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to help determine the scope of the claimed subject matter.

[0008] 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 an optical axis of the optical imaging system from an object side of the optical imaging system toward an imaging surface of the optical imaging system. The seventh lens includes an optical portion configured to refract light and ribs surrounding the optical portion and configured to support the seventh lens in the optical imaging system. The ribs include a surface treatment region, a first non-treatment region, and a second non-treatment region. The surface treatment region is provided in a first portion of an object side surface of the ribs and a first portion of an image side surface of the ribs. The first non-treatment region is provided in a second portion of the object side surface of the ribs. The second non-treatment region is provided in a second portion of the image side surface of the ribs. The surface treatment region is rougher than the first non-treatment region and the second non-treatment region. And when viewed in a direction of the optical axis, the first non-treatment region and the second non-treatment region overlap each other.

[0009] The first non-treatment region and the second non-treatment region may each include at least one stepped portion.

[0010] The optical imaging system may 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.

[0011] The optical imaging system may further include a spacer provided between the sixth lens and the seventh lens, and the optical imaging system may satisfy 0.5 < S6d / f < 1.2, where S6d is the inner diameter of the spacer, f is the total focal length of the optical imaging system, and S6d and f are expressed in the same measurement unit.

[0012] The optical imaging system may 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 may satisfy 0.5 < L1234TRavg / L7TR < 0.75, where L1234TRavg is the average of the total outer diameters of the first lens to the fourth lens, 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 may satisfy 0.5 < L12345TRavg / L7TR < 0.76, where L12345TRavg is the average of the total outer diameters of the first lens to the fifth lens, 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 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, 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 satisfies 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 satisfies 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 measurement unit.

[0018] The imaging surface can be the imaging surface of an image sensor, and the optical imaging system satisfies 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 satisfies 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 measurement unit.

[0020] The optical imaging system satisfies 0 < min(f1:f3) / max(f4:f7) < 0.4, where 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, and min(f1:f3) and max(f4:f7) are expressed in the same measurement unit.

[0021] The optical imaging system can satisfy 0.81 < f12 / f123 < 0.96, where f12 is the combined focal length of the first lens and the second lens, and f123 is the combined focal length of the first lens to the third lens, and f12 and f123 are expressed in the same measurement unit.

[0022] The optical imaging system can 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 measurement unit.

[0023] The second lens can have positive refractive power, or the third lens can have positive refractive power.

[0024] The fifth lens can have negative refractive power, and the paraxial region of the object side of the fifth lens can be concave or convex.

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

[0026] The paraxial region of the object side of the sixth lens can be concave or convex.

[0027] The paraxial region of the object side of the seventh lens can be concave.

[0028] Other features and aspects will be apparent from the following detailed description, the drawings, and the appended claims. Description of the Drawings

[0029] Figure 1 is a view showing a first example of an optical imaging system.

[0030] Figure 2 shows Figure 1 the aberration curve of the optical imaging system of

[0031] Figure 3 is a view showing a second example of an optical imaging system.

[0032] Figure 4 shows Figure 3 the aberration curve of the optical imaging system of

[0033] Figure 5 is a view showing a third example of an optical imaging system.

[0034] Figure 6 shows Figure 5 the aberration curve of the optical imaging system of

[0035] Figure 7is a view showing a fourth example of the optical imaging system.

[0036] Figure 8 Shows Figure 7 Aberration curves of the optical imaging system.

[0037] Fig. 9 is a view showing a fifth example of the optical imaging system.

[0038] Fig.10 Shows Fig. 9 Aberration curves of the optical imaging system.

[0039] Fig.11 is a view showing a sixth example of the optical imaging system.

[0040] Fig.12 Shows Fig.11 Aberration curves of the optical imaging system.

[0041] Fig.13 is a view showing a seventh example of the optical imaging system.

[0042] Fig.14 Shows Fig.13 Aberration curves of the optical imaging system.

[0043] Fig.15 is a view showing an eighth example of the optical imaging system.

[0044] Fig.16 Shows Fig.15 Aberration curves of the optical imaging system.

[0045] Fig.17 is a view showing a ninth example of the optical imaging system.

[0046] Fig.18 Shows Fig.17 Aberration curves of the optical imaging system.

[0047] Fig.19 is a view showing a tenth example of the optical imaging system.

[0048] Fig. 20 Shows Fig.19 Aberration curves of the optical imaging system.

[0049] Fig.21 is a view showing an eleventh example of the optical imaging system.

[0050] Fig. 22 Shows Fig.21 Aberration curves of the optical imaging system.

[0051] Fig.23is a view showing a twelfth example of the optical imaging system.

[0052] Fig.24 Shows Fig.23 Aberration curves of the optical imaging system.

[0053] Fig.25 is a view showing a thirteenth example of the optical imaging system.

[0054] Fig.26 Shows Fig.25 Aberration curves of the optical imaging system.

[0055] Fig. 27 is a view showing a fourteenth example of the optical imaging system.

[0056] Fig.28 Shows Fig. 27 Aberration curves of the optical imaging system.

[0057] Fig.29 is a view showing a fifteenth example of the optical imaging system.

[0058] Fig.30 Shows Fig.29 Aberration curves of the optical imaging system.

[0059] Fig.31 is a view showing a sixteenth example of the optical imaging system.

[0060] Fig.32 Shows Fig.31 Aberration curves of the optical imaging system.

[0061] Fig.33 is a view showing a seventeenth example of the optical imaging system.

[0062] Fig.34 Shows Fig.33 Aberration curves of the optical imaging system.

[0063] Fig.35 is a view showing an eighteenth example of the optical imaging system.

[0064] Fig.36 Shows Fig.35 Aberration curves of the optical imaging system.

[0065] Fig.37 is a view showing a nineteenth example of the optical imaging system.

[0066] Fig.38 Shows Fig.37 Aberration curves of the optical imaging system.

[0067] Fig.39 is a view showing a twentieth example of the optical imaging system.

[0068] Fig.40 Shows Fig.39 Aberration curves of the optical imaging system.

[0069] Fig.41 is a view showing a twenty-first example of the optical imaging system.

[0070] Fig.42 Shows Fig.41 Aberration curves of the optical imaging system.

[0071] Fig.43 is a view showing a twenty-second example of the optical imaging system.

[0072] Fig.44 Shows Fig.43 Aberration curves of the optical imaging system.

[0073] Fig.45 is a view showing a twenty-third example of the optical imaging system.

[0074] Fig.46 Shows Fig.45 Aberration curves of the optical imaging system.

[0075] Fig.47 is a view showing a twenty-fourth example of the optical imaging system.

[0076] Fig.48 Shows Fig.47 Aberration curves of the optical imaging system.

[0077] Fig.49 is a view showing a twenty-fifth example of the optical imaging system.

[0078] Fig.50 Shows Fig.49 Aberration curves of the optical imaging system.

[0079] Fig.51 is a view showing a twenty-sixth example of the optical imaging system.

[0080] Fig.52 Shows Fig.51 Aberration curves of the optical imaging system.

[0081] Fig.53 and Fig.54 is a cross-sectional view showing an example of an optical imaging system and a lens barrel connected to each other.

[0082] Fig.55 is a cross-sectional view illustrating an example of the shape of a rib of the seventh lens.

[0083] Fig.56 is a cross-sectional view illustrating an example of the seventh lens.

[0084] In all drawings and detailed description, 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 sizes, proportions, and depictions of elements in the drawings may be exaggerated. DETAILED DESCRIPTION

[0085] The following detailed description is provided to help the reader obtain a comprehensive understanding of the method, device and / or system described in this application. However, after understanding the disclosure of this application, various changes, modifications and equivalences of the method, device and / or system described in this application will be apparent. For example, the order of operations described in this application is merely an example, and except for the operations that must occur in a specific order, it is not limited to the order set forth in this application, but can make obvious changes after understanding the disclosure of this application. In addition, for greater clarity and brevity, the description of features well known in the art may be omitted.

[0086] The features described in this application may be implemented in different forms and should not be interpreted as being limited to the examples described in this application. Rather, the examples described in this application are provided only to illustrate some of the many possible ways to implement the methods, devices and / or systems described in this application, which will be apparent after understanding the disclosure of this application.

[0087] Throughout the specification, when an element such as a layer, a region, or a substrate is described as being “on,” “connected to,” or “coupled to” another element, the element may be directly “on,” “connected to,” or “coupled to” the other element, or one or more other elements may be present between the element and the other element. Conversely, when an element is described as being “directly on,” “directly connected to,” or “directly coupled to” another element, there may be no other elements between the element and the other element.

[0088] 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.

[0089] Although words such as "first", "second", and "third" may be used in the present application to describe various members, components, regions, layers, or portions, these members, components, regions, layers, or portions should not be limited by these words. More specifically, these words are only used to distinguish one member, component, region, layer, or portion from another member, component, region, layer, or portion. Therefore, without departing from the teachings of the examples described in the present application, the first member, first component, first region, first layer, or first portion mentioned in these examples may also be referred to as the second member, second component, second region, second layer, or second portion.

[0090] For ease of description, spatially relative terms such as "above", "upper", "below", and "lower" may be used in this application to describe the relationship of one element relative to another element as shown in the accompanying drawings. In addition to covering the orientations depicted in the accompanying drawings, these spatially relative terms are intended to also cover different orientations of the device in use or operation. For example, if the device in the accompanying drawings is turned over, an element described as being "above" or "upper" relative to another element will be "below" or "lower" relative to the other element. Therefore, depending on the spatial orientation of the device, the term "above" covers both "above" and "below" orientations. The device can also be oriented in other ways (e.g., rotated 90 degrees or in other orientations), and the spatially relative terms used in this application should be interpreted accordingly.

[0091] The terms used in this application are only used to describe various examples and are not used to limit the present disclosure. Unless the context clearly indicates otherwise, the articles "a", "an" and "the" are intended to include plural forms as well. The words "comprise", "include" and "have" indicate the presence of stated features, quantities, operations, components, elements and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements and / or combinations thereof.

[0092] For ease of explanation, the thickness, size, and shape of the lenses shown in the drawings may be slightly exaggerated. In addition, the shapes of the spherical surfaces or aspherical surfaces of the lenses described in the detailed description and shown in the drawings are merely examples. That is, the shapes of the spherical surfaces or aspherical surfaces of the lenses are not limited to the examples described in the present application.

[0093] The values ​​for the radius of curvature, lens thickness, distances between elements including lenses or surfaces, effective radius of the lens, and diameters, thicknesses, and lengths of various elements are expressed in millimeters (mm), while the angles are expressed in degrees (degree). The thickness of the lens and the distances between elements including lenses or surfaces are measured along the optical axis of the optical imaging system.

[0094] The term "effective semi-aperture" as used in this application refers to the radius of the portion of a surface (object side or image side) through which light actually passes. The effective semi-aperture is equal to the straight-line distance between the optical axis of the surface and the outermost point on the surface through which the light actually passes. Thus, the effective semi-aperture may be equal to the radius of the optical portion of the lens, or may be smaller than the radius of the optical portion of the lens if the light does not pass through the edge portion of the optical portion of the lens. The object side and image side of the lens may have different effective semi-apertures.

[0095] In this application, unless otherwise specified, references to the shape of a lens surface refer to the shape of a paraxial region of the lens. The paraxial region of the lens surface is the central portion of the lens surface around the optical axis of the lens surface, where light rays incident on the lens surface form a small angle θ with the optical axis, and the approximations sinθ≈θ, tanθ≈θ, and cosθ≈1 are valid.

[0096] For example, the statement that the object side surface of the lens is convex means that at least the paraxial region of the object side surface of the lens is convex, and the statement that the image side surface of the lens is concave means that at least the paraxial region of the image side surface of the lens is concave. Therefore, even if the object side surface of the 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. At the same time, even if the image side surface of the 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.

[0097] Fig.53 and Fig.54 is a cross-sectional view showing an example of an optical imaging system and a lens barrel coupled to each other.

[0098] Reference Fig.53 and Fig.54 The optical imaging system 100 includes a plurality of lenses arranged along an optical axis. In addition, the optical imaging system 100 further includes a lens barrel 200 in which the plurality of lenses are accommodated. The plurality of lenses are spaced apart from each other by a predetermined distance along the optical axis.

[0099] Each lens of the optical imaging system includes an optical portion and a rib. The optical portion of the lens is the portion of the lens that refracts light and is generally formed in the central portion of the lens. The rib of the lens is the edge portion of the lens that enables the lens to be mounted in a lens barrel and aligns the optical axis of the lens with the optical axis of the optical imaging system. The rib of the lens extends radially outward from the optical portion and may be formed integrally with the optical portion. The optical portions of the lens are generally not in contact with each other. For example, the first lens to the seventh lens are mounted in the lens barrel so 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 lens may selectively contact each other. For example, the ribs of the first lens to the fourth lens, the ribs of the first lens to the fifth lens, or the ribs of the second lens to the fourth lens may contact each other so that the optical axes of these lenses may be easily aligned with the optical axis of the optical imaging system.

[0100] Examples of the optical imaging system 100 described in this application may include Fig.53 and Fig.54 The self-aligned structure shown in .

[0101] exist Fig.53 In one example shown in , the optical imaging system 100 includes a self-alignment structure in which the optical axes of the four lenses 1000, 2000, 3000 and 4000 are aligned with the optical axis of the optical imaging system 100 by connecting the four consecutive lenses 1000, 2000, 3000 and 4000 to each other.

[0102] The first lens 1000 disposed closest to the object side of the optical imaging system 100 is disposed in contact with the inner surface of the lens barrel 200 so that the optical axis of the first lens 1000 is aligned with the optical axis of the optical imaging system 100, the second lens 2000 is coupled to the first lens 1000 so that the optical axis of the second lens 2000 is aligned with the optical axis of the optical imaging system 100, the third lens 3000 is coupled to the second lens 2000 so that the optical axis of the third lens 3000 is aligned with the optical axis of the optical imaging system 100, and the fourth lens 4000 is coupled to the third lens 3000 so that the optical axis of the fourth lens 4000 is aligned with the optical axis of the optical imaging system 100. The second to fourth lenses 2000 to 4000 may be disposed without contacting the inner surface of the lens barrel 200.

[0103] Although Fig.53 It is shown that the first to fourth lenses 1000 to 4000 are coupled to each other, but four consecutive lenses coupled to each other may be changed to the second to fifth lenses 2000 to 5000 , the third to sixth lenses 3000 to 6000 , or the fourth to seventh lenses 4000 to 7000 .

[0104] exist Fig.54In another example shown in , the optical imaging system 100 includes a self-alignment structure in which the optical axes of the five lenses 1000, 2000, 3000, 4000 and 5000 are aligned with the optical axis of the optical imaging system 100 by connecting the five consecutive lenses 1000, 2000, 3000, 4000 and 5000 to each other.

[0105] The first lens 1000 disposed closest to the object side of the optical imaging system 100 is disposed in contact with the inner surface of the lens barrel 200 so that the optical axis of the first lens 1000 is aligned with the optical axis of the optical imaging system 100, the second lens 2000 is coupled to the first lens 1000 so that the optical axis of the second lens 2000 is aligned with the optical axis of the optical imaging system 100, the third lens 3000 is coupled to the second lens 2000 so that the optical axis of the third lens 3000 is aligned with the optical axis of the optical imaging system 100, the fourth lens 4000 is coupled to the third lens 3000 so that the optical axis of the fourth lens 4000 is aligned with the optical axis of the optical imaging system 100, and the fifth lens 5000 is coupled to the fourth lens 4000 so that the optical axis of the fifth lens 5000 is aligned with the optical axis of the optical imaging system 100. The second to fifth lenses 2000 to 5000 may be disposed without contacting the inner surface of the lens barrel 200.

[0106] Although Fig.54 It is shown that the first to fifth lenses 1000 to 5000 are coupled to each other, but five consecutive lenses coupled to each other may be changed to the second to sixth lenses 2000 to 6000 or the third to seventh lenses 3000 to 7000 .

[0107] The first lens 1000 is the lens closest to the object (or subject), and the seventh lens 7000 is the lens closest to the image sensor ( Fig.53 and Fig.54 Not shown, but see e.g. Figure 1 The lens of the image sensor 190).

[0108] Furthermore, the object-side surface of the lens is the surface of the lens facing the object, and the image-side surface of the lens is the surface of the lens facing the image sensor.

[0109] The example of the optical imaging system 100 disclosed in this application includes seven lenses.

[0110] For example, refer to Fig.53 and Fig.54 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, which are arranged in numerical order from the object side of the optical imaging system 100 toward the imaging surface of the optical imaging system 100.

[0111] The optical imaging system 100 further 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 an electrical signal. The filter is disposed between the lens and the imaging surface and blocks infrared rays in the light refracted by the first lens to the seventh lens from being incident on the imaging surface.

[0112] In addition, the optical imaging system 100 further includes an aperture to adjust the amount of light incident on the imaging surface. For example, the aperture may be disposed between the first lens 1000 and the second lens 2000, or may be disposed between the second lens 2000 and the third lens 3000. The aperture may be disposed relatively close to the first lens 1000 to reduce the total length (TTL) of the optical imaging system 100.

[0113] exist Fig.55 and Fig.56 In the example shown in , a spacer is located between each pair of adjacent lenses. At least a portion of the rib of each lens contacts one or both of the spacers. The spacer maintains the spacing between the lenses and blocks stray light from reaching the imaging surface.

[0114] The spacers include first spacers SP1, second spacers SP2, third spacers SP3, fourth spacers SP4, fifth spacers SP5, and sixth spacers SP6 disposed toward the image sensor from the object side of the optical imaging system 100. In some examples, the spacers further include a seventh spacer SP7.

[0115] 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, the seventh spacer SP7 is disposed between the sixth lens 6000 and the sixth spacer SP6. The thickness of the seventh spacer SP7 in the optical axis direction may be greater than the thickness of the sixth spacer SP6 in the optical axis direction.

[0116] The first lens has a positive refractive power or a negative refractive power. In addition, 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.

[0117] At least one of the object-side surface and the image-side surface of the first lens may be an aspherical surface. For example, both surfaces of the first lens may be aspherical surfaces.

[0118] The second lens has positive refractive power or negative refractive power. In addition, 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.

[0119] Optionally, two surfaces of the second lens may be convex. Specifically, the object-side surface and the image-side surface of the second lens may be convex.

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

[0121] The third lens has positive refractive power or negative refractive power. In addition, 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 of the third lens may be concave.

[0122] Optionally, the third lens may have a meniscus shape with a convex image side surface. Specifically, the object side surface of the third lens may be concave, and the third lens and the image side surface may be convex.

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

[0124] The fourth lens has positive refractive power or negative refractive power. In addition, 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 of the fourth lens may be concave.

[0125] Optionally, two surfaces of the fourth lens may be convex. Specifically, the object-side surface and the image-side surface of the fourth lens may be convex.

[0126] Optionally, the fourth lens may have a meniscus shape with a convex image-side surface. Specifically, the object-side surface of the fourth lens may be concave, and the image-side surface of the fourth lens may be convex.

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

[0128] The fifth lens has positive refractive power or negative refractive power. In addition, 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 of the fifth lens may be concave.

[0129] Optionally, the fifth lens may have a meniscus shape with a convex image-side surface. Specifically, the object-side surface of the fifth lens may be concave, and the image-side surface of the fifth lens may be convex.

[0130] At least one of the object-side surface and the image-side surface of the fifth lens may be an aspherical surface. For example, both surfaces of the fifth lens may be aspherical surfaces.

[0131] The sixth lens has positive refractive power or negative refractive power. In addition, 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.

[0132] Optionally, two surfaces of the sixth lens may be convex. Specifically, the object-side surface and the image-side surface of the sixth lens may be convex.

[0133] Optionally, the sixth lens may have a meniscus shape with a convex image-side surface. Specifically, the object-side surface of the sixth lens may be concave, and the image-side surface of the sixth lens may be convex.

[0134] Optionally, two surfaces of the sixth lens may be concave. Specifically, the object-side surface and the image-side surface of the sixth lens may be concave.

[0135] At least one of the object-side surface and the image-side surface of the sixth lens may be an aspherical surface. For example, both surfaces of the sixth lens may be aspherical surfaces.

[0136] The seventh lens has positive refractive power or negative refractive power. In addition, 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 of the seventh lens may be concave.

[0137] Optionally, two surfaces of the seventh lens may be concave. Specifically, the object-side surface and the image-side surface of the seventh lens may be concave.

[0138] At least one of the object-side surface and the image-side surface of the seventh lens may be an aspherical surface. For example, both surfaces of the seventh lens may be aspherical surfaces.

[0139] In addition, at least one inflection point may be formed on at least one of the object side surface and the image side surface of the seventh lens. The inflection point is a point where the lens 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 toward 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 toward the edge of the image side surface of the seventh lens.

[0140] Fig.55 is a cross-sectional view illustrating an example of the shape of a rib of the seventh lens.

[0141] Light reflected from an object (or subject) may be refracted by the first to seventh lenses. In this case, unexpected reflection of light may occur. Unexpected reflection of light (which is light irrelevant to the formation of an image) may cause a flicker phenomenon in the captured image.

[0142] Examples of the optical imaging system 100 described in this application may include structures for preventing scintillation and reflection.

[0143] For example, Fig.55 As shown, the rib of the seventh lens 7000 disposed closest to the image sensor includes a surface-treated area EA. The surface-treated area EA is a portion of the surface of the rib that is surface-treated to be rougher than other portions of the surface of the rib. For example, the surface-treated area EA can be formed by chemical etching, physical grinding, or any other surface treatment method capable of increasing surface roughness. The surface-treated area EA scatters reflected light.

[0144] Therefore, even if unexpected reflection of light may occur, the reflected light is prevented from converging at one point, and thus the occurrence of a flicker phenomenon can be suppressed.

[0145] The surface-processed area EA may be formed in the entire region from the edge of the optical portion through which light of the seventh lens 7000 actually passes to the outer end of the rib. Fig.55 As shown, the non-processed area NEA including the step portions E11, E21 and E22 may not be surface-treated, or may be surface-treated to have a roughness different from that of the surface-treated area EA. The step portions E11, E21 and E22 are portions where the thickness of the rib portion changes sharply. When viewed in the optical axis direction, the first non-processed area NEA formed on the object-side surface of the seventh lens 7000 and the second non-processed area NEA formed on the image-side surface of the seventh lens 7000 overlap each other.

[0146] A width G1 of the first unprocessed area NEA formed on the object-side surface of the seventh lens 7000 may be different from a width G2 of the second unprocessed area NEA formed on the image-side surface of the seventh lens 7000. Fig.55 In the example shown, G1 is greater than G2.

[0147] When observed in the optical axis direction, the width G1 of the first non-processing area NEA includes a first stepped portion E11, a second stepped portion E21, and a third stepped portion E22. And when observed in the optical axis direction, the width G2 of the second non-processing area NEA includes the second stepped portion E21 and the third stepped portion E22, but does not include the first stepped portion E11. The distance G4 from the outer end of the rib to the second stepped portion E21 is less than the distance G3 from the outer end of the rib to the first stepped portion E11. Similarly, the distance G5 from the outer end of the rib to the third stepped portion E22 is less than the distance G3 from the outer end of the rib to the first stepped portion E11.

[0148] As described above and as Fig.55 shown, the positions of forming the non-processing area NEA and the stepped portions E11, E21, and E22 can be beneficial for measuring the concentricity of the seventh lens 7000.

[0149] The lenses of the optical imaging system can be made of an optical material with a high light transmittance. For example, the first lens to the seventh lens can be made of a plastic material. However, the materials of the first lens to the seventh lens are not limited to plastic materials.

[0150] In addition, the first lens to the seventh lens can have at least one aspherical surface. In other words, at least one of the object side and the image side of all the lenses among the first lens to the seventh lens can be aspherical. The aspherical surface of the first lens to the seventh lens can be represented by Equation 1 below:

[0151]

[0152] 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 to the optical axis of the lens in a direction perpendicular to the optical axis, 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 and intersecting the vertex of the aspherical surface of the lens. Some of the examples disclosed in this application include the aspherical constant J. An additional term JY 20 can be added to Equation 1 to reflect the influence of the aspherical constant J.

[0153] The optical imaging system can satisfy one or more of the following conditional expressions 1 to 5:

[0154] 0.1 < L1w / L7w < 0.4 (conditional expression 1)

[0155] 0.5 < S6d / f < 1.4 (conditional expression 2)

[0156] 0.4 < L1TR / L7TR < 1.9 (Conditional Expression 3)

[0157] 0.5 < L1234TRavg / L7TR < 0.9 (Conditional Expression 4)

[0158] 0.5 < L12345TRavg / L7TR < 0.9 (Conditional Expression 5)

[0159] In the above conditional expressions, L1w is the weight of the first lens, and L7w is the weight of the seventh lens.

[0160] S6d is the inner diameter of the sixth spacer ring, and f is the total focal length of the optical imaging system.

[0161] L1TR is the total outer diameter of the first lens, and L7TR is the total outer diameter of the seventh lens. The total outer diameter of a lens is the outer diameter of the lens that includes both the optical part of the lens and the ribs of the lens.

[0162] L1234TRavg is the average of the total outer diameters of the first lens to the fourth lens, and L12345TRavg is the average of the total outer diameters of the first lens to the fifth lens.

[0163] Conditional Expression 1 is a conditional expression related to the weight ratio between the first lens and the seventh lens, and when Conditional Expression 1 is satisfied, the optical axes can be easily aligned with each other through the contact between the corresponding lenses and the contact between the lens and the lens barrel.

[0164] Conditional Expression 2 is a conditional expression related to the ratio between the inner diameter of the sixth spacer ring provided between the sixth lens and the seventh lens and the total focal length of the optical imaging system, and when Conditional Expression 2 is satisfied, the scintillation phenomenon caused by unexpected reflection of light can be suppressed.

[0165] Conditional Expression 3 is a conditional 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 Conditional Expression 3 is satisfied, the optical axes can be easily aligned with each other through the contact between the corresponding lenses and the contact between the lens and the lens barrel.

[0166] Conditional Expression 4 is a conditional expression related to the ratio between the average of the total outer diameters of the first lens to the fourth lens and the total outer diameter of the seventh lens, and when Conditional Expression 4 is satisfied, the aberration can be easily corrected to improve the resolution.

[0167] Conditional Expression 5 is a conditional expression related to the ratio between the average of the total outer diameters of the first lens to the fifth lens and the total outer diameter of the seventh lens, and when Conditional Expression 5 is satisfied, the aberration can be easily corrected to improve the resolution.

[0168] The optical imaging system may also satisfy one or more of the following conditional expressions 6 to 10:

[0169] 0.1 < L1w / L7w < 0.3 (Conditional Expression 6)

[0170] 0.5 < S6d / f < 1.2 (Conditional Expression 7)

[0171] 0.4 < L1TR / L7TR < 0.7 (Conditional Expression 8)

[0172] 0.5 < L1234TRavg / L7TR < 0.75 (Conditional Expression 9)

[0173] 0.5 < L12345TRavg / L7TR < 0.76 (Conditional Expression 10)

[0174] Except that Conditional Expressions 6 to 10 specify a narrower range, Conditional Expressions 6 to 10 are the same as Conditional Expressions 1 to 5.

[0175] The optical imaging system may also satisfy one or more of the following conditional expressions 11 to 32:

[0176] 0.01 < R1 / R4 < 1.3 (Conditional Expression 11)

[0177] 0.1 < R1 / R5 < 0.7 (Conditional Expression 12)

[0178] 0.05 < R1 / R6 < 0.9 (Conditional Expression 13)

[0179] 0.2 < R1 / R11 < 1.2 (Conditional Expression 14)

[0180] 0.8 < R1 / R14 < 1.2 (Conditional Expression 15)

[0181] 0.6 < (R11 + R14) / (2*R1) < 3.0 (Conditional Expression 16)

[0182] 0.4 < D13 / D57 < 1.2 (Conditional Expression 17)

[0183] 0.1 < (1 / f1 + 1 / f2 + 1 / f3 + 1 / f4 + 1 / f5 + 1 / f6 + 1 / f7)*f < 0.8

[0184] (Conditional Expression 18)

[0185] 0.1 < (1 / f1 + 1 / f2 + 1 / f3 + 1 / f4 + 1 / f5 + 1 / f6 + 1 / f7)*TTL < 1.0

[0186] (Conditional Expression 19)

[0187] 0.2 < TD1 / D67 < 0.8 (Conditional Expression 20)

[0188] 0.1 < (R11 + R14) / (R5 + R6) < 1.0 (Conditional Expression 21)

[0189] SD12 < SD34 (Conditional Expression 22)

[0190] SD56 < SD67 (Conditional Expression 23)

[0191] SD56 < SD34 (Conditional Expression 24)

[0192] 0.6 < TTL / (2 * Img HT) < 0.9 (Conditional Expression 25)

[0193] 0.2 < ΣSD / ΣTD < 0.7 (Conditional Expression 26)

[0194] 0 < min(f1:f3) / max(f4:f7) < 0.4 (Conditional Expression 27)

[0195] 0.4 < ΣTD / TTL < 0.7 (Conditional Expression 28)

[0196] 0.7 < SL / TTL < 1.0 (Conditional Expression 29)

[0197] 0.81 < f12 / f123 < 0.96 (Conditional Expression 30)

[0198] 0.6 < f12 / f1234 < 0.84 (Conditional Expression 31)

[0199] TTL ≤ 6.00 mm (Conditional Expression 32)

[0200] In the above conditional 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, and R14 is the radius of curvature of the image side surface of the seventh lens.

[0201] 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, and 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.

[0202] 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 TTL is the distance along the optical axis from the object side surface of the first lens to the imaging surface of the image sensor of the optical imaging system.

[0203] TD1 is the thickness of the first lens along the optical axis, and D67 is the distance from the object-side surface of the sixth lens to the image-side surface of the seventh lens along the optical axis.

[0204] 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, and 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.

[0205] Img HT is half the diagonal length of the imaging surface of the image sensor.

[0206] ΣSD is the sum of the air gaps between lenses along the optical axis, and ΣTD is the sum of the thicknesses of the lenses along the optical axis. The air gap is the distance between adjacent lenses along the optical axis.

[0207] min(f1:f3) is the minimum value of the absolute values ​​of the focal lengths of the first to third lenses; and max(f4:f7) is the maximum value of the absolute values ​​of the focal lengths of the fourth to seventh lenses.

[0208] SL is the distance along the optical axis from the aperture to the imaging surface of the image sensor.

[0209] 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.

[0210] When Conditional Expression 11 is satisfied, the correction effects of the longitudinal spherical aberration and the astigmatic curvature of field can be improved, and thus the resolution can be improved.

[0211] When Conditional Expression 12 is satisfied, the correction effects of the longitudinal spherical aberration and the astigmatic curvature of field can be improved, and thus the resolution can be improved.

[0212] When Conditional Expression 13 is satisfied, the correction effects of the longitudinal spherical aberration and the astigmatic curvature of field can be improved, and thus the resolution can be improved.

[0213] When Conditional Expression 14 is satisfied, the correction effect of the longitudinal spherical aberration can be improved, and the scintillation phenomenon can be prevented. Therefore, the resolution can be improved.

[0214] When Conditional Expression 15 is satisfied, the correction effect of the longitudinal spherical aberration can be improved, and the imaging surface curvature phenomenon can be suppressed. Therefore, the resolution can be improved.

[0215] When Conditional Expression 16 is satisfied, the correction effect of the longitudinal spherical aberration can be improved, the imaging surface curvature phenomenon can be suppressed, and the scintillation phenomenon can be prevented. Therefore, the resolution can be improved.

[0216] When Conditional Expression 17 is satisfied, a slim optical imaging system can be realized.

[0217] When Conditional Expression 18 is satisfied, the sensitivity of each lens can be increased to improve mass productivity.

[0218] When Conditional Expression 20 is satisfied, a slim optical imaging system can be realized.

[0219] When Conditional Expression 22 is satisfied, the chromatic aberration correction effect can be improved.

[0220] When Conditional Expression 25 is satisfied, a slim optical imaging system can be realized.

[0221] When Conditional Expression 26 is satisfied, mass productivity of each lens can be improved, and a slim optical imaging system can be realized.

[0222] When Conditional Expression 27 is satisfied, a slim optical imaging system can be realized.

[0223] When Conditional Expression 28 is satisfied, mass productivity per lens can be improved, and a slim optical imaging system can be realized.

[0224] When Conditional Expression 29 is satisfied, a slim optical imaging system can be realized.

[0225] When Conditional Expression 30 is satisfied, a slim optical imaging system can be realized.

[0226] When Conditional Expression 31 is satisfied, a slim optical imaging system can be realized.

[0227] Fig.53 and Fig.54 Descriptions of twenty-six examples of the illustrated optical imaging system 100 are as follows. Although these descriptions use expressions such as "may include," "may have," and "may be" when describing the examples, the examples actually have features and characteristics referenced in the description using these expressions.

[0228] In the table 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 surface.

[0229] First example

[0230] Figure 1 is a view showing a first example of an optical imaging system, and Figure 2 Shows Figure 1 Aberration curves of the optical imaging system.

[0231] 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 first lens 110 and the second lens 120.

[0232] The first lens 110 may have positive refractive power, an object-side surface of the first lens 110 may be convex in the paraxial region, and an image-side surface of the first lens 110 may be concave in the paraxial region.

[0233] The second lens 120 may have negative refractive power, an object-side surface of the second lens 120 may be convex in the paraxial region, and an image-side surface of the second lens 120 may be concave in the paraxial region.

[0234] The third lens 130 may have positive refractive power, an object-side surface of the third lens 130 may be convex in the paraxial region, and an image-side surface of the third lens 130 may be concave in the paraxial region.

[0235] The fourth lens 140 may have negative refractive power, an object-side surface of the fourth lens 140 may be convex in the paraxial region, and an image-side surface of the fourth lens 140 may be concave in the paraxial region.

[0236] The fifth lens 150 may have negative refractive power, an object-side surface of the fifth lens 150 may be convex in the paraxial region, and an image-side surface of the fifth lens 150 may be concave in the paraxial region.

[0237] The sixth lens 160 may have positive refractive power, and the object-side surface and the image-side surface of the sixth lens 160 may be convex in a paraxial region.

[0238] The seventh lens 170 may have negative refractive power, and the object-side surface and the image-side surface of the seventh lens 170 may be concave in a paraxial region.

[0239] In addition, one inflection point may be formed on the object-side surface of the seventh lens 170. For example, the object-side surface of the seventh lens 170 may be concave in a paraxial region and become convex toward an edge of the object-side surface of the seventh lens 170.

[0240] In addition, one inflection point may be formed on the image-side surface of the seventh lens 170. For example, the image-side surface of the seventh lens 170 may be concave in a paraxial region and become convex toward an edge of the image-side surface of the seventh lens 170.

[0241] Although Figure 1 Although not shown in FIG. 1 , the aperture stop is set at a distance of 0.818 mm from the object side of the first lens 110 toward the imaging surface of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the values ​​of TTL and SL of Example 1 listed in Table 53 presented later in this application.

[0242] Table 1 below shows the composition Figure 1 The physical properties of the lenses and other elements of the optical imaging system are shown in Table 2 below. Figure 1 Except for the object side surface of the second lens 120 (which is a spherical surface), Figure 1 Both surfaces of all lenses are aspherical.

[0243] Table 1

[0244]

[0245]

[0246] Table 2

[0247] 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

[0248] Second example

[0249] Figure 3 is a view showing a second example of the optical imaging system, and Figure 4 Shows Figure 3 Aberration curves of the optical imaging system.

[0250] 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 second lens 220 and the third lens 230.

[0251] The first lens 210 may have positive refractive power, an object-side surface of the first lens 210 may be convex in the paraxial region and an image-side surface of the first lens 210 may be concave in the paraxial region.

[0252] The second lens 220 may have positive refractive power, and the object-side surface and the image-side surface of the second lens 220 may be convex in a paraxial region.

[0253] The third lens 230 may have negative refractive power, an object-side surface of the third lens 230 may be convex in the paraxial region, and an image-side surface of the third lens 230 may be concave in the paraxial region.

[0254] The fourth lens 240 may have positive refractive power, an object-side surface of the fourth lens 240 may be concave in the paraxial region, and an image-side surface of the fourth lens 240 may be convex in the paraxial region.

[0255] The fifth lens 250 may have positive refractive power, an object-side surface of the fifth lens 250 may be convex in the paraxial region, and an image-side surface of the fifth lens 250 may be concave in the paraxial region.

[0256] The sixth lens 260 may have negative refractive power, an object-side surface of the sixth lens 260 may be convex in the paraxial region, and an image-side surface of the sixth lens 260 may be concave in the paraxial region.

[0257] The seventh lens 270 may have positive refractive power, an object-side surface of the seventh lens 270 may be convex in the paraxial region, and an image-side surface of the seventh lens 270 may be concave in the paraxial region.

[0258] In addition, two inflection points 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 convex in the paraxial region, become concave in the region outside the paraxial region, and become convex toward the edge of the object side surface of the seventh lens 270.

[0259] In addition, one inflection point may be formed on the image-side surface of the seventh lens 270. For example, the image-side surface of the seventh lens 270 may be concave in a paraxial region and become convex toward an edge of the image-side surface of the seventh lens 270.

[0260] Although Figure 3Although not shown in FIG. 1 , the aperture stop is set at a distance of 1.425 mm from the object side of the first lens 210 toward the imaging surface of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the values ​​of TTL and SL of Example 2 listed in Table 53 presented later in this application.

[0261] Table 3 below shows the composition Figure 3 The physical properties of the lenses and other elements of the optical imaging system are shown in Table 4 below. Figure 3 The aspheric surface coefficient of the lens. Figure 3 Both surfaces of all lenses are aspherical.

[0262] Table 3

[0263]

[0264]

[0265] Table 4

[0266] K A B C D E F G H J S1 -7.5196 0.0476 -0.039 0.0108 -0.0002 -0.006 0.0045 -0.0012 0.0001 0 S2 -19.661 -0.0106 -0.0481 0.0183 0.0105 -0.0109 0.0039 -0.0006 3E-05 0 S3 0.042 -0.0249 -0.0196 0.0094 0.0041 0.0108 -0.014 0.0056 -0.0008 0 S4 0 0.0098 -0.0507 0.0341 0.0229 -0.0518 0.0341 -0.0103 0.0012 0 S5 -5.6502 -0.0476 0.0152 -0.0398 0.11 -0.1327 0.082 -0.0252 0.0031 0 S6 0.5327 -0.067 0.0583 -0.0705 0.0922 -0.0854 0.0499 -0.0161 0.0024 0 S7 0 -0.0158 -0.0083 -0.0305 0.0756 -0.0736 0.035 -0.0077 0.0005 0 S8 0 -0.0099 -0.0427 0.0077 0.0285 -0.0272 0.01 -0.0013 0 0 S9 -44.395 0.1048 -0.1251 0.08 -0.0437 0.0187 -0.0058 0.001 -7E-05 0 S10 -4.0715 -0.0175 0.0211 -0.0368 0.0252 -0.01 0.0024 -0.0003 2E-05 0 S11 -1.1211 0.0034 -0.0742 0.0637 -0.0381 0.0134 -0.0026 0.0003 -1E-05 0 S12 0.0464 -0.092 0.0339 -0.0168 0.0044 -0.0005 1E-05 3E-06 -2E-07 0 S13 -0.795 -0.2987 0.11 -0.0259 0.0046 -0.0007 7E-05 -5E-06 2E-07 -5E-09 S14 -1.3233 -0.199 0.0846 -0.0285 0.0073 -0.0013 0.0002 -1E-05 5E-07 -9E-09

[0267] Third Example

[0268] Figure 5 is a view showing a third example of the optical imaging system, and Figure 6 Shows Figure 5 Aberration curves of the optical imaging system.

[0269] 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 second lens 320 and the third lens 330.

[0270] The first lens 310 may have positive refractive power, an object-side surface of the first lens 310 may be convex in the paraxial region, and an image-side surface of the first lens 310 may be concave in the paraxial region.

[0271] The second lens 320 may have positive refractive power, and the object-side surface and the image-side surface of the second lens 320 may be convex in the paraxial region.

[0272] The third lens 330 may have negative refractive power, an object-side surface of the third lens 330 may be convex in the paraxial region, and an image-side surface of the third lens 330 may be concave in the paraxial region.

[0273] The fourth lens 340 may have negative refractive power, an object-side surface of the fourth lens 340 may be concave in the paraxial region, and an image-side surface of the fourth lens 340 may be convex in the paraxial region.

[0274] The fifth lens 350 may have positive refractive power, an object-side surface of the fifth lens 350 may be convex in the paraxial region, and an image-side surface of the fifth lens 350 may be concave in the paraxial region.

[0275] The sixth lens 360 may have negative refractive power, an object-side surface of the sixth lens 360 may be convex in the paraxial region, and an image-side surface of the sixth lens 360 may be concave in the paraxial region.

[0276] The seventh lens 370 may have positive refractive power, an object-side surface of the seventh lens 370 may be convex in the paraxial region, and an image-side surface of the seventh lens 370 may be concave in the paraxial region.

[0277] In addition, two inflection points 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 convex in the paraxial region, become concave in a region outside the paraxial region, and become convex toward an edge of the object-side surface of the seventh lens 370.

[0278] In addition, one inflection point may be formed on the image-side surface of the seventh lens 370. For example, the image-side surface of the seventh lens 370 may be concave in the paraxial region and become convex toward an edge of the image-side surface of the seventh lens 370.

[0279] Although Figure 5 Although not shown in FIG. 5 , the aperture stop is set at a distance of 1.259 mm from the object side of the first lens 310 toward the imaging surface of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the values ​​of TTL and SL of Example 3 listed in Table 53 presented later in this application.

[0280] Table 5 below shows the composition Figure 5 The physical properties of the lenses and other elements of the optical imaging system are shown in Table 6 below. Figure 5 The aspheric surface coefficient of the lens. Figure 5 Both surfaces of all lenses are aspherical.

[0281] Table 5

[0282]

[0283] Table 6

[0284]

[0285]

[0286] Fourth Example

[0287] Figure 7 is a view showing a fourth example of the optical imaging system, and Figure 8 Shows Figure 7 Aberration curves of the optical imaging system.

[0288] 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.

[0289] The first lens 410 may have positive refractive power, an object-side surface of the first lens 410 may be convex in the paraxial region, and an image-side surface of the first lens 410 may be concave in the paraxial region.

[0290] The second lens 420 may have positive refractive power, and the object-side surface and the image-side surface of the second lens 420 may be convex in a paraxial region.

[0291] The third lens 430 may have negative refractive power, an object-side surface of the third lens 430 may be convex in the paraxial region, and an image-side surface of the third lens 430 may be concave in the paraxial region.

[0292] The fourth lens 440 may have negative refractive power, an object-side surface of the fourth lens 440 may be concave in the paraxial region, and an image-side surface of the fourth lens 440 may be convex in the paraxial region.

[0293] The fifth lens 450 may have positive refractive power, an object-side surface of the fifth lens 450 may be convex in the paraxial region, and an image-side surface of the fifth lens 450 may be concave in the paraxial region.

[0294] The sixth lens 460 may have negative refractive power, an object-side surface of the sixth lens 460 may be convex in the paraxial region, and an image-side surface of the sixth lens 460 may be concave in the paraxial region.

[0295] The seventh lens 470 may have positive refractive power, an object-side surface of the seventh lens 470 may be convex in the paraxial region, and an image-side surface of the seventh lens 470 may be concave in the paraxial region.

[0296] In addition, two inflection points may be formed on the object-side surface of the seventh lens 470. For example, the object-side surface of the seventh lens 470 may be convex in a paraxial region, become concave in a region outside the paraxial region, and become convex toward an edge of the object-side surface of the seventh lens 470.

[0297] In addition, one inflection point may be formed on the image-side surface of the seventh lens 470. For example, the image-side surface of the seventh lens 470 may be concave in a paraxial region and become convex toward an edge of the image-side surface of the seventh lens 470.

[0298] Although Figure 7 Although not shown in FIG. 4 , the aperture stop is set at a distance of 1.169 mm from the object side of the first lens 410 toward the imaging surface of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the values ​​of TTL and SL of Example 4 listed in Table 53 presented later in this application.

[0299] Table 7 below shows the composition Figure 7 The physical properties of the lenses and other elements of the optical imaging system are shown in Table 8 below. Figure 7 The aspheric surface coefficient of the lens. Figure 7 Both surfaces of all lenses are aspherical.

[0300] Table 7

[0301]

[0302]

[0303] Table 8

[0304] 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

[0305] Fifth example

[0306] Fig. 9 is a view showing a fifth example of the optical imaging system, and Fig.10 Shows Fig. 9 Aberration curves of the optical imaging system.

[0307] 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 first lens 510 and the second lens 520.

[0308] The first lens 510 may have negative refractive power, an object-side surface of the first lens 510 may be convex in the paraxial region, and an image-side surface of the first lens 510 may be concave in the paraxial region.

[0309] The second lens 520 may have positive refractive power, an object-side surface of the second lens 520 may be convex in the paraxial region, and an image-side surface of the second lens 520 may be concave in the paraxial region.

[0310] The third lens 530 may have negative refractive power, an object-side surface of the third lens 530 may be convex in the paraxial region, and an image-side surface of the third lens 530 may be concave in the paraxial region.

[0311] The fourth lens 540 may have negative refractive power, an object-side surface of the fourth lens 540 may be convex in the paraxial region, and an image-side surface of the fourth lens 540 may be concave in the paraxial region.

[0312] The fifth lens 550 may have positive refractive power, an object-side surface of the fifth lens 550 may be convex in the paraxial region, and an image-side surface of the fifth lens 550 may be concave in the paraxial region.

[0313] The sixth lens 560 may have positive refractive power, and the object-side surface and the image-side surface of the sixth lens 560 may be convex in a paraxial region.

[0314] The seventh lens 570 may have negative refractive power, and the object-side surface and the image-side surface of the seventh lens 570 may be concave in a paraxial region.

[0315] In addition, one inflection point may be formed on the object-side surface of the seventh lens 570. For example, the object-side surface of the seventh lens 570 may be concave in a paraxial region and become convex toward an edge of the object-side surface of the seventh lens 570.

[0316] In addition, one inflection point may be formed on the image-side surface of the seventh lens 570. For example, the image-side surface of the seventh lens 570 may be concave in a paraxial region and become convex toward an edge of the image-side surface of the seventh lens 570.

[0317] Although Fig. 9 Although not shown in FIG. 5 , the aperture stop is set at a distance of 0.383 mm from the object side of the first lens 510 toward the imaging surface of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the values ​​of TTL and SL of Example 5 listed in Table 53 presented later in this application.

[0318] Table 9 below shows the composition Fig. 9 The physical properties of the lenses and other elements of the optical imaging system are shown in Table 10 below. Fig. 9 The aspheric surface coefficient of the lens. Fig. 9 Both surfaces of all lenses are aspherical.

[0319] Table 9

[0320]

[0321] Table 10

[0322]

[0323]

[0324] Sixth Example

[0325] Fig.11 is a view showing a sixth example of the optical imaging system, and Fig.12 Shows Fig.11 Aberration curves of the optical imaging system.

[0326] 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.

[0327] The first lens 610 may have positive refractive power, an object-side surface of the first lens 610 may be convex in the paraxial region, and an image-side surface of the first lens 610 may be concave in the paraxial region.

[0328] The second lens 620 may have negative refractive power, an object-side surface of the second lens 620 may be convex in the paraxial region, and an image-side surface of the second lens 620 may be concave in the paraxial region.

[0329] The third lens 630 may have negative refractive power, an object-side surface of the third lens 630 may be convex in the paraxial region, and an image-side surface of the third lens 630 may be concave in the paraxial region.

[0330] The fourth lens 640 may have positive refractive power, an object-side surface of the fourth lens 640 may be convex in the paraxial region, and an image-side surface of the fourth lens 640 may be convex in the paraxial region.

[0331] The fifth lens 650 may have negative refractive power, an object-side surface of the fifth lens 650 may be concave in the paraxial region, and an image-side surface of the fifth lens 650 may be convex in the paraxial region.

[0332] The sixth lens 660 may have positive refractive power, and the object-side surface and the image-side surface of the sixth lens 660 may be convex in a paraxial region.

[0333] The seventh lens 670 may have negative refractive power, and the object-side surface and the image-side surface of the seventh lens 670 may be concave in a paraxial region.

[0334] In addition, one inflection 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 a paraxial region and become convex toward an edge of the object-side surface of the seventh lens 670.

[0335] In addition, one inflection point may be formed on the image-side surface of the seventh lens 670. For example, the image-side surface of the seventh lens 670 may be concave in a paraxial region and become convex toward an edge of the image-side surface of the seventh lens 670.

[0336] Although Fig.11 Although not shown in FIG. 5 , the aperture stop is set at a distance of 0.731 mm from the object side of the first lens 610 toward the imaging surface of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the values ​​of TTL and SL of Example 6 listed in Table 53 presented later in this application.

[0337] Table 11 below shows the composition Fig.11 The physical properties of the lenses and other elements of the optical imaging system are shown in Table 12 below. Fig.11 The aspheric surface coefficient of the lens. Fig.11 Both surfaces of all lenses are aspherical.

[0338] Table 11

[0339]

[0340] Table 12

[0341] K A B C D E F G H J S1 -0.7464 0.01386 0.03443 -0.0749 0.10292 -0.0706 0.01727 0.00423 -0.0023 0 S2 36.6688 -0.0823 0.19496 -0.3067 0.36336 -0.323 0.19024 -0.0632 0.00855 0 S3 -1.3559 -0.1603 0.33047 -0.4059 0.33245 -0.1787 0.06728 -0.0166 0.00178 0 S4 -0.4109 -0.0907 0.14443 0.1155 -0.7969 1.50089 -1.4406 0.72187 -0.147 0 S5 0 -0.0739 0.04629 -0.1203 0.11651 -0.0578 -0.0089 0.02328 -0.0057 0 S6 0 -0.0932 0.00341 0.05212 -0.1827 0.24566 -0.2173 0.11261 -0.0241 0 S7 25.1476 -0.1235 -0.1887 0.37626 -0.554 0.67306 -0.5796 0.27819 -0.0538 0 S8 -99 -9E-05 -0.3274 0.35885 -0.3195 0.34506 -0.2608 0.09954 -0.0144 0 S9 -70.894 0.02055 0.04825 -0.5284 0.75832 -0.4915 0.16359 -0.0271 0.00175 0 S10 2.28319 0.17594 -0.3448 0.22829 -0.0716 0.01095 -0.0007 -4E-06 1.4E-06 0 S11 -99 0.11875 -0.2169 0.16747 -0.0871 0.02755 -0.0049 0.00045 -2E-05 0 S12 -3.3067 0.16436 -0.1849 0.1159 -0.049 0.01383 -0.0024 0.00023 -9E-06 0 S13 -2.4772 -0.1026 -0.0482 0.07401 -0.0308 0.00666 -0.0008 5.5E-05 -2E-06 0 S14 -1.1028 -0.2935 0.20325 -0.1127 0.04574 -0.0129 0.0024 -0.0003 1.8E-05 -5E-07

[0342] Example 7

[0343] Fig.13 is a view showing a seventh example of the optical imaging system, and Fig.14 Shows Fig.13 Aberration curves of the optical imaging system.

[0344] 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 second lens 720 and the third lens 730.

[0345] The first lens 710 may have positive refractive power, an object-side surface of the first lens 710 may be convex in the paraxial region, and an image-side surface of the first lens 710 may be concave in the paraxial region.

[0346] The second lens 720 may have positive refractive power, and the object-side surface and the image-side surface of the second lens 720 may be convex in the paraxial region.

[0347] The third lens 730 may have negative refractive power, an object-side surface of the third lens 730 may be convex in the paraxial region, and an image-side surface of the third lens 730 may be concave in the paraxial region.

[0348] The fourth lens 740 may have negative refractive power, an object-side surface of the fourth lens 740 may be convex in the paraxial region, and an image-side surface of the fourth lens 740 may be concave in the paraxial region.

[0349] The fifth lens 750 may have positive refractive power, an object-side surface of the fifth lens 750 may be convex in the paraxial region, and an image-side surface of the fifth lens 750 may be concave in the paraxial region.

[0350] The sixth lens 760 may have negative refractive power, an object-side surface of the sixth lens 760 may be convex in the paraxial region, and an image-side surface of the sixth lens 760 may be concave in the paraxial region.

[0351] The seventh lens 770 may have negative refractive power, an object-side surface of the seventh lens 770 may be convex in the paraxial region, and an image-side surface of the seventh lens 770 may be concave in the paraxial region.

[0352] In addition, two inflection points 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 convex in a paraxial region, become concave in a region outside the paraxial region, and become convex toward an edge of the object-side surface of the seventh lens 770.

[0353] In addition, one inflection point may be formed on the image-side surface of the seventh lens 770. For example, the image-side surface of the seventh lens 770 may be concave in a paraxial region and become convex toward an edge of the image-side surface of the seventh lens 770.

[0354] Although Fig.13 Although not shown in FIG. 5 , the aperture stop is set at a distance of 1.158 mm from the object side of the first lens 710 toward the imaging surface of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the values ​​of TTL and SL of Example 7 listed in Table 53 presented later in this application.

[0355] Table 13 below shows the composition Fig.13 The physical properties of the lenses and other elements of the optical imaging system are shown in Table 14 below. Fig.13 The aspheric surface coefficient of the lens. Fig.13 Both surfaces of all lenses are aspherical.

[0356] Table 13

[0357]

[0358]

[0359] Table 14

[0360] K A B C D E F G H J S1 -8.038 0.07067 -0.0797 0.03339 0.00722 -0.0491 0.04654 -0.0186 0.00318 -0.0002 S2 -20.594 -0.0019 -0.1494 0.20409 -0.2922 0.37549 -0.3085 0.14861 -0.0387 0.0042 S3 -0.0908 -0.0339 -0.0641 0.13679 -0.2821 0.49215 -0.4815 0.26054 -0.0746 0.00881 S4 -0.4822 -0.0436 0.17605 -0.3256 0.19989 0.1916 -0.4291 0.32034 -0.1141 0.01622 S5 -1.1841 -0.1073 0.25445 -0.4683 0.49912 -0.2863 0.05651 0.03245 -0.0229 0.00442 S6 0.87331 -0.0693 0.03569 0.20478 -0.8833 1.73278 -1.9742 1.34645 -0.5106 0.08302 S7 -0.4999 -0.0314 0.01347 -0.2894 0.97164 -1.7181 1.79234 -1.1152 0.38365 -0.0563 S8 -1E-06 -0.0273 -0.1177 0.21199 -0.2544 0.21565 -0.1264 0.04694 -0.0093 0.0007 S9 -41.843 0.16235 -0.3487 0.40163 -0.3105 0.13962 -0.027 -0.0038 0.00264 -0.0003 S10 -5.1424 0.03971 -0.1364 0.15688 -0.1229 0.06333 -0.0212 0.0044 -0.0005 2.6E-05 S11 -2.1666 0.03558 -0.1809 0.19853 -0.1438 0.06411 -0.0173 0.00275 -0.0002 9E-06 S12 -0.0207 -0.1043 0.02386 -0.0063 -0.0007 0.00066 -3E-06 -4E-05 7.3E-06 -4E-07 S13 -0.7948 -0.4128 0.18634 -0.0516 0.01005 -0.0015 0.00016 -1E-05 6.2E-07 -1E-08 S14 -1.3226 -0.3105 0.17125 -0.0712 0.02129 -0.0043 0.00058 -5E-05 2.3E-06 -5E-08

[0361] Example 8

[0362] Fig.15 is a view showing an eighth example of the optical imaging system, and Fig.16 Shows Fig.15 Aberration curves of the optical imaging system.

[0363] 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 second lens 820 and the third lens 830.

[0364] The first lens 810 may have positive refractive power, an object-side surface of the first lens 810 may be convex in the paraxial region, and an image-side surface of the first lens 810 may be concave in the paraxial region.

[0365] The second lens 820 may have positive refractive power, and the object-side surface and the image-side surface of the second lens 820 may be convex in the paraxial region.

[0366] The third lens 830 may have negative refractive power, an object-side surface of the third lens 830 may be convex in the paraxial region, and an image-side surface of the third lens 830 may be concave in the paraxial region.

[0367] The fourth lens 840 may have positive refractive power, an object-side surface of the fourth lens 840 may be convex in the paraxial region, and an image-side surface of the fourth lens 840 may be concave in the paraxial region.

[0368] The fifth lens 850 may have positive refractive power, an object-side surface of the fifth lens 850 may be convex in the paraxial region, and an image-side surface of the fifth lens 850 may be concave in the paraxial region.

[0369] The sixth lens 860 may have negative refractive power, an object-side surface of the sixth lens 860 may be convex in the paraxial region, and an image-side surface of the sixth lens 860 may be concave in the paraxial region.

[0370] The seventh lens 870 may have negative refractive power, an object-side surface of the seventh lens 870 may be convex in the paraxial region, and an image-side surface of the seventh lens 870 may be concave in the paraxial region.

[0371] In addition, two inflection points may be formed on the object-side surface of the seventh lens 870. For example, the object-side surface of the seventh lens 870 may be convex in the paraxial region, become concave in the region outside the paraxial region, and become convex toward the edge of the object-side surface of the seventh lens 870.

[0372] In addition, an inflection point may be formed on the image-side surface of the seventh lens 870. For example, the image-side surface of the seventh lens 870 may be concave in the paraxial region and become convex toward the edge of the image-side surface of the seventh lens 870.

[0373] Although Fig.15 Although not shown in FIG. 1 , the aperture stop is set at a distance of 1.199 mm from the object side of the first lens 810 toward the imaging surface of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the values ​​of TTL and SL of Example 8 listed in Table 53 presented later in this application.

[0374] Table 15 below shows the composition Fig.15 The physical properties of the lenses and other elements of the optical imaging system are shown in Table 16 below. Fig.15 The aspheric surface coefficient of the lens. Fig.15 Both surfaces of all lenses are aspherical.

[0375] Table 15

[0376]

[0377] Table 16

[0378]

[0379]

[0380] Ninth Example

[0381] Fig.17 is a view showing a ninth example of the optical imaging system, and Fig.18 Shows Fig.17 Aberration curves of the optical imaging system.

[0382] 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 second lens 920 and the third lens 930.

[0383] The first lens 910 may have positive refractive power, an object-side surface of the first lens 910 may be convex in the paraxial region, and an image-side surface of the first lens 910 may be concave in the paraxial region.

[0384] The second lens 920 may have positive refractive power, an object-side surface of the second lens 920 may be convex in the paraxial region, and an image-side surface of the second lens 920 may be concave in the paraxial region.

[0385] The third lens 930 may have negative refractive power, an object-side surface of the third lens 930 may be convex in the paraxial region, and an image-side surface of the third lens 930 may be concave in the paraxial region.

[0386] The fourth lens 940 may have positive refractive power, an object-side surface of the fourth lens 940 may be convex in the paraxial region, and an image-side surface of the fourth lens 940 may be concave in the paraxial region.

[0387] The fifth lens 950 may have negative refractive power, an object-side surface of the fifth lens 950 may be convex in the paraxial region, and an image-side surface of the fifth lens 950 may be concave in the paraxial region.

[0388] The sixth lens 960 may have positive refractive power, an object-side surface of the sixth lens 960 may be convex in the paraxial region, and an image-side surface of the sixth lens 960 may be concave in the paraxial region.

[0389] The seventh lens 970 may have negative refractive power, an object-side surface of the seventh lens 970 may be convex in the paraxial region, and an image-side surface of the seventh lens 970 may be concave in the paraxial region.

[0390] In addition, two inflection points may be formed on the object-side surface of the seventh lens 970. For example, the object-side surface of the seventh lens 970 may be convex in the paraxial region, become concave in the region outside the paraxial region, and become convex toward the edge of the object-side surface of the seventh lens 970.

[0391] In addition, one inflection point may be formed on the image-side surface of the seventh lens 970. For example, the image-side surface of the seventh lens 970 may be concave in a paraxial region and become convex toward an edge of the image-side surface of the seventh lens 970.

[0392] Although Fig.17 Although not shown in FIG. 1 , the aperture stop is set at a distance of 1.077 mm from the object side of the first lens 910 toward the imaging surface of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the values ​​of TTL and SL of Example 9 listed in Table 53 presented later in this application.

[0393] Table 17 below shows the composition Fig.17 The physical properties of the lenses and other elements of the optical imaging system are shown in Table 18 below. Fig.17 The aspheric surface coefficient of the lens. Fig.17 Both surfaces of all lenses are aspherical.

[0394] Table 17

[0395]

[0396]

[0397] Table 18

[0398] 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

[0399] Example 10

[0400] Fig.19 is a view showing a tenth example of the optical imaging system, and Fig. 20 Shows Fig.19 Aberration curves of the optical imaging system.

[0401] The tenth example of the 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 (not shown) disposed between the second lens 1020 and the third lens 1030.

[0402] The first lens 1010 may have positive refractive power, an object-side surface of the first lens 1010 may be convex in the paraxial region, and an image-side surface of the first lens 1010 may be concave in the paraxial region.

[0403] The second lens 1020 may have positive refractive power, an object-side surface of the second lens 1020 may be convex in the paraxial region, and an image-side surface of the second lens 1020 may be concave in the paraxial region.

[0404] The third lens 1030 may have negative refractive power, an object-side surface of the third lens 1030 may be convex in the paraxial region, and an image-side surface of the third lens 1030 may be concave in the paraxial region.

[0405] The fourth lens 1040 may have positive refractive power, an object-side surface of the fourth lens 1040 may be convex in the paraxial region, and an image-side surface of the fourth lens 1040 may be concave in the paraxial region.

[0406] The fifth lens 1050 may have positive refractive power, an object-side surface of the fifth lens 1050 may be convex in the paraxial region, and an image-side surface of the fifth lens 1050 may be concave in the paraxial region.

[0407] The sixth lens 1060 may have negative refractive power, an object-side surface of the sixth lens 1060 may be convex in the paraxial region, and an image-side surface of the sixth lens 1060 may be concave in the paraxial region.

[0408] The seventh lens 1070 may have negative refractive power, an object-side surface of the seventh lens 1070 may be convex in the paraxial region, and an image-side surface of the seventh lens 1070 may be concave in the paraxial region.

[0409] In addition, two inflection points 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 convex in a paraxial region, become concave in a region outside the paraxial region, and become convex toward an edge of the object-side surface of the seventh lens 1070.

[0410] In addition, one inflection point may be formed on the image-side surface of the seventh lens 1070. For example, the image-side surface of the seventh lens 1070 may be concave in a paraxial region and become convex toward an edge of the image-side surface of the seventh lens 1070.

[0411] Although Fig.19 Although not shown in FIG. 1 , the aperture stop is set at a distance of 1.272 mm from the object side of the first lens 1010 toward the imaging surface of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the values ​​of TTL and SL of Example 10 listed in Table 53 presented later in this application.

[0412] Table 19 below shows the composition Fig.19 The physical properties of the lenses and other elements of the optical imaging system are shown in Table 20 below. Fig.19 The aspheric surface coefficient of the lens. Fig.19 Both surfaces of all lenses are aspherical.

[0413] Table 19

[0414]

[0415] Table 20

[0416] K A B C D E F G H J S1 -1 -0.01 0.01417 -0.0583 0.09254 -0.09 0.05243 -0.0176 0.00313 -0.0002 S2 -11.438 0.05506 -0.1648 0.25922 -0.3427 0.30172 -0.1612 0.05049 -0.0085 0.0006 S3 -0.9056 0.00958 -0.113 0.22871 -0.3273 0.27096 -0.1107 0.01483 0.00277 -0.0007 S4 42.6338 0.00143 -0.1953 1.05 -2.3921 2.85567 -1.9404 0.75734 -0.1585 0.01379 S5 14.8909 -0.0708 -0.0264 0.76491 -2.0539 2.6215 -1.8758 0.77193 -0.1712 0.01588 S6 1.82524 -0.0676 0.05594 0.14077 -0.4974 0.6826 -0.5253 0.23821 -0.0594 0.00629 S7 -10.152 -0.0045 -0.2167 0.67508 -1.1658 1.22606 -0.8032 0.31789 -0.069 0.00626 S8 1.75335 -0.0452 -0.0162 0.00218 0.05945 -0.1108 0.09563 -0.0454 0.01149 -0.0012 S9 -44.62 0.07432 -0.114 0.09984 -0.0717 0.03824 -0.0147 0.00362 -0.0005 2.9E-05 S10 -4.9001 0.06679 -0.093 0.06274 -0.027 0.007 -0.001 7.1E-05 -1E-06 -8E-08 S11 -13.159 0.06555 -0.1106 0.08335 -0.0459 0.01604 -0.0034 0.00042 -3E-05 7.9E-07 S12 0.81809 -0.0437 -0.0059 0.00816 -0.0058 0.00207 -0.0004 4.5E-05 -3E-06 6.4E-08 S13 -0.8756 -0.2944 0.09406 -0.0094 -0.0031 0.00129 -0.0002 1.9E-05 -9E-07 1.7E-08 S14 -1.3021 -0.2412 0.11561 -0.0414 0.01087 -0.002 0.00024 -2E-05 7.8E-07 -1E-08

[0417] Example 11

[0418] Fig.21 is a view showing an eleventh example of the optical imaging system, and Fig. 22 Shows Fig.21 Aberration curves of the optical imaging system.

[0419] The eleventh example of the 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 disposed between the object side and the first lens 1110.

[0420] The first lens 1110 may have positive refractive power, an object-side surface of the first lens 1110 may be convex in the paraxial region, and an image-side surface of the first lens 1110 may be concave in the paraxial region.

[0421] The second lens 1120 may have negative refractive power, an object-side surface of the second lens 1120 may be convex in the paraxial region, and an image-side surface of the second lens 1120 may be concave in the paraxial region.

[0422] The third lens 1130 may have positive refractive power, an object-side surface of the third lens 1130 may be convex in the paraxial region, and an image-side surface of the third lens 1130 may be concave in the paraxial region.

[0423] The fourth lens 1140 may have positive refractive power, an object-side surface of the fourth lens 1140 may be convex in the paraxial region, and an image-side surface of the fourth lens 1140 may be concave in the paraxial region.

[0424] The fifth lens 1150 may have negative refractive power, an object-side surface of the fifth lens 1150 may be concave in the paraxial region, and an image-side surface of the fifth lens 1150 may be convex in the paraxial region.

[0425] The sixth lens 1160 may have negative refractive power, an object-side surface of the sixth lens 1160 may be convex in the paraxial region, and an image-side surface of the sixth lens 1160 may be concave in the paraxial region.

[0426] The seventh lens 1170 may have negative refractive power, an object-side surface of the seventh lens 1170 may be convex in the paraxial region, and an image-side surface of the seventh lens 1170 may be concave in the paraxial region.

[0427] In addition, one inflection 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 convex in a paraxial region and become concave toward an edge of the object-side surface of the seventh lens 1170.

[0428] In addition, one inflection point may be formed on the image-side surface of the seventh lens 1170. For example, the image-side surface of the seventh lens 1170 may be concave in a paraxial region and become convex toward an edge of the image-side surface of the seventh lens 1170.

[0429] like Fig.21 As shown in , the aperture stop is set at a distance of 0.250 mm from the object side of the first lens 1110 toward the imaging surface of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the values ​​of TTL and SL of Example 11 listed in Table 53 presented later in this application.

[0430] Table 21 below shows the composition Fig.21 The physical properties of the lenses and other elements of the optical imaging system are shown in Table 22 below. Fig.21 The aspheric surface coefficient of the lens. Fig.21 Both surfaces of all lenses are aspherical.

[0431] Table 21

[0432]

[0433] Table 22

[0434]

[0435]

[0436] Example 12

[0437] Fig.23 is a view showing a twelfth example of the optical imaging system, and Fig.24 Shows Fig.23 Aberration curves of the optical imaging system.

[0438] The twelfth example of the 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 first lens 1210 and the second lens 1220.

[0439] The first lens 1210 may have positive refractive power, an object-side surface of the first lens 1210 may be convex in the paraxial region, and an image-side surface of the first lens 1210 may be concave in the paraxial region.

[0440] The second lens 1220 may have negative refractive power, an object-side surface of the second lens 1220 may be convex in the paraxial region, and an image-side surface of the second lens 1220 may be concave in the paraxial region.

[0441] The third lens 1230 may have positive refractive power, an object-side surface of the third lens 1230 may be convex in the paraxial region, and an image-side surface of the third lens 1230 may be concave in the paraxial region.

[0442] The fourth lens 1240 may have positive refractive power, an object-side surface of the fourth lens 1240 may be convex in the paraxial region, and an image-side surface of the fourth lens 1240 may be concave in the paraxial region.

[0443] The fifth lens 1250 may have positive refractive power, an object-side surface of the fifth lens 1250 may be concave in the paraxial region, and an image-side surface of the fifth lens 1250 may be convex in the paraxial region.

[0444] The sixth lens 1260 may have positive refractive power, and the object-side surface and the image-side surface of the sixth lens 1260 may be convex in a paraxial region.

[0445] The seventh lens 1270 may have negative refractive power, and the object-side surface and the image-side surface of the seventh lens 1270 may be concave in a paraxial region.

[0446] In addition, one inflection point may be formed on the object-side surface of the seventh lens 1270. For example, the object-side surface of the seventh lens 1270 may be concave in a paraxial region and become convex toward an edge of the object-side surface of the seventh lens 1270.

[0447] In addition, one inflection point may be formed on the image-side surface of the seventh lens 1270. For example, the image-side surface of the seventh lens 1270 may be concave in a paraxial region and become convex toward an edge of the image-side surface of the seventh lens 1270.

[0448] Although Fig.23 Although not shown in FIG. 1 , the aperture stop is set at a distance of 0.768 mm from the object side of the first lens 1210 toward the imaging plane of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the values ​​of TTL and SL of Example 12 listed in Table 53 presented later in this application.

[0449] Table 23 below shows the composition Fig.23 The physical properties of the lenses and other elements of the optical imaging system are shown in Table 24 below. Fig.23 The aspheric surface coefficient of the lens. Fig.23 Both surfaces of all lenses are aspherical.

[0450] Table 23

[0451]

[0452]

[0453] Table 24

[0454] K A B C D E F G H J S1 -0.8127 0.0142 0.0092 -0.0157 0.0206 -0.0137 0.0037 0.0003 -0.0003 0 S2 5.6538 -0.0472 0.0448 -0.0321 0.0158 -0.0059 0.001 0.0004 -0.0002 0 S3 -10.668 -0.0824 0.0792 -0.0266 -0.0158 0.0274 -0.0153 0.0039 -0.0004 0 S4 -0.1737 -0.0508 0.0303 0.1129 -0.3063 0.4131 -0.3101 0.1243 -0.0205 0 S5 0 -0.0377 0.0156 -0.0597 0.0773 -0.0624 0.0268 -0.0045 3E-05 0 S6 0 -0.0706 0.0482 -0.0575 -0.0009 0.0419 -0.0392 0.0166 -0.0028 0 S7 46.114 -0.1374 0.0451 0.0051 -0.0298 0.0052 0.0076 -0.0027 0.0001 0 S8 99 -0.1096 -0.0451 0.1394 -0.1519 0.0948 -0.0333 0.006 -0.0004 0 S9 -99 -0.0865 0.1152 -0.1605 0.1182 -0.0466 0.0099 -0.0011 5E-05 0 S10 -0.2245 0.0593 -0.0542 0.0004 0.0119 -0.0044 0.0007 -5E-05 1E-06 0 S11 -99 0.1031 -0.1094 0.0579 -0.0216 0.005 -0.0007 4E-05 -1E-06 0 S12 -4.7232 0.1521 -0.1221 0.0592 -0.0202 0.0046 -0.0007 5E-05 -2E-06 0 S13 -1.1986 -0.0323 -0.0724 0.0507 -0.0141 0.0021 -0.0002 8E-06 -2E-07 0 S14 -1.2644 -0.1675 0.0662 -0.0204 0.0047 -0.0007 8E-05 -5E-06 2E-07 -2E-09

[0455] Example 13

[0456] Fig.25 is a view showing a thirteenth example of the optical imaging system, and Fig.26 Shows Fig.25 Aberration curves of the optical imaging system.

[0457] The thirteenth example of the 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 first lens 1310 and the second lens 1320.

[0458] The first lens 1310 may have positive refractive power, an object-side surface of the first lens 1310 may be convex in the paraxial region, and an image-side surface of the first lens 1310 may be concave in the paraxial region.

[0459] The second lens 1320 may have negative refractive power, an object-side surface of the second lens 1320 may be convex in the paraxial region, and an image-side surface of the second lens 1320 may be concave in the paraxial region.

[0460] The third lens 1330 may have positive refractive power, an object-side surface of the third lens 1330 may be convex in the paraxial region, and an image-side surface of the third lens 1330 may be concave in the paraxial region.

[0461] The fourth lens 1340 may have positive refractive power, and the object-side surface and the image-side surface of the fourth lens 1340 may be convex in a paraxial region.

[0462] The fifth lens 1350 may have negative refractive power, an object-side surface of the fifth lens 1350 may be concave in the paraxial region, and an image-side surface of the fifth lens 1350 may be convex in the paraxial region.

[0463] The sixth lens 1360 may have positive refractive power, and the object-side surface and the image-side surface of the sixth lens 1360 may be convex in a paraxial region.

[0464] The seventh lens 1370 may have negative refractive power, and the object-side surface and the image-side surface of the seventh lens 1370 may be concave in a paraxial region.

[0465] In addition, one inflection point may be formed on the object-side surface of the seventh lens 1370. For example, the object-side surface of the seventh lens 1370 may be concave in a paraxial region and become convex toward an edge of the object-side surface of the seventh lens 1370.

[0466] In addition, one inflection point may be formed on the image-side surface of the seventh lens 1370. For example, the image-side surface of the seventh lens 1370 may be concave in a paraxial region and become convex toward an edge of the image-side surface of the seventh lens 1370.

[0467] Although Fig.25 Although not shown in FIG. 1 , the aperture stop is set at a distance of 0.624 mm from the object side of the first lens 1310 toward the imaging surface of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the values ​​of TTL and SL of Example 13 listed in Table 53 presented later in this application.

[0468] Table 25 below shows the composition Fig.25 The physical properties of the lenses and other elements of the optical imaging system are shown in Table 26 below. Fig.25 The aspheric surface coefficient of the lens. Fig.25 Both surfaces of all lenses are aspherical.

[0469] Table 25

[0470]

[0471] Table 26

[0472] K A B C D E F G H J S1 -0.5383 0.0108 0.0209 -0.0477 0.0729 -0.06 0.0243 -0.0027 -0.0007 0 S2 5.8135 -0.0459 0.0189 0.0248 -0.0559 0.0486 -0.026 0.0094 -0.0019 0 S3 -10.011 -0.085 0.066 0.02 -0.0808 0.0756 -0.0332 0.0069 -0.0006 0 S4 -0.1875 -0.0544 0.0068 0.26 -0.6655 0.9329 -0.7519 0.3313 -0.061 0 S5 0 -0.0569 0.0063 -0.0275 -0.0046 0.0401 -0.0485 0.0264 -0.0053 0 S6 0 -0.0775 -0.0976 0.271 -0.5329 0.5567 -0.3323 0.1128 -0.0176 0 S7 47.015 -0.0863 -0.1024 0.2298 -0.2721 0.1091 0.0392 -0.0378 0.0065 0 S8 -99 -0.0603 -0.0348 0.057 -0.0468 0.0241 -0.007 0.001 -6E-05 0 S9 -99 -0.2672 0.6153 -0.9745 0.9138 -0.5236 0.1786 -0.0332 0.0026 0 S10 -0.0701 0.0268 -0.0377 -0.0253 0.035 -0.0133 0.0024 -0.0002 7E-06 0 S11 -97.721 0.1556 -0.2109 0.1424 -0.0678 0.02 -0.0033 0.0003 -1E-05 0 S12 -1.5998 0.2298 -0.1811 0.0905 -0.0342 0.0088 -0.0014 0.0001 -4E-06 0 S13 4.8341 -0.1142 -0.0024 0.0306 -0.013 0.0027 -0.0003 2E-05 -5E-07 0 S14 -1.0993 -0.2618 0.1449 -0.0599 0.0171 -0.0032 0.0004 -3E-05 1E-06 -2E-08

[0473] Example 14

[0474] Fig. 27 is a view showing a fourteenth example of the optical imaging system, and Fig.28 Shows Fig. 27 Aberration curves of the optical imaging system.

[0475] The fourteenth example of the 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 first lens 1410 and the second lens 1420.

[0476] The first lens 1410 may have positive refractive power, an object-side surface of the first lens 1410 may be convex in the paraxial region, and an image-side surface of the first lens 1410 may be concave in the paraxial region.

[0477] The second lens 1420 may have negative refractive power, an object-side surface of the second lens 1420 may be convex in the paraxial region, and an image-side surface of the second lens 1420 may be concave in the paraxial region.

[0478] The third lens 1430 may have negative refractive power, an object-side surface of the third lens 1430 may be convex in the paraxial region, and an image-side surface of the third lens 1430 may be concave in the paraxial region.

[0479] The fourth lens 1440 may have positive refractive power, an object-side surface of the fourth lens 1440 may be convex in the paraxial region, and an image-side surface of the fourth lens 1440 may be concave in the paraxial region.

[0480] The fifth lens 1450 may have positive refractive power, an object-side surface of the fifth lens 1450 may be concave in the paraxial region, and an image-side surface of the fifth lens 1450 may be convex in the paraxial region.

[0481] The sixth lens 1460 may have positive refractive power, and the object-side surface and the image-side surface of the sixth lens 1460 may be convex in a paraxial region.

[0482] The seventh lens 1470 may have negative refractive power, and the object-side surface and the image-side surface of the seventh lens 1470 may be concave in a paraxial region.

[0483] In addition, one inflection point may be formed on the image-side surface of the seventh lens 1470. For example, the image-side surface of the seventh lens 1470 may be concave in a paraxial region and become convex toward an edge of the image-side surface of the seventh lens 1470.

[0484] Although Fig. 27 Although not shown in FIG. 1 , the aperture stop is set at a distance of 0.641 mm from the object side of the first lens 1410 toward the imaging surface of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the values ​​of TTL and SL of Example 14 listed in Table 53 presented later in this application.

[0485] Table 27 below shows the composition Fig. 27 The physical properties of the lenses and other elements of the optical imaging system are shown in Table 28 below. Fig. 27 The aspheric surface coefficient of the lens. Fig. 27 Both surfaces of all lenses are aspherical.

[0486] Table 27

[0487]

[0488] Table 28

[0489]

[0490]

[0491] Example 15

[0492] Fig.29 is a view showing a fifteenth example of the optical imaging system, and Fig.30 Shows Fig.29 Aberration curves of the optical imaging system.

[0493] The fifteenth example of the 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.

[0494] The first lens 1510 may have positive refractive power, an object-side surface of the first lens 1510 may be convex in the paraxial region, and an image-side surface of the first lens 1510 may be concave in the paraxial region.

[0495] The second lens 1520 may have negative refractive power, an object-side surface of the second lens 1520 may be convex in the paraxial region, and an image-side surface of the second lens 1520 may be concave in the paraxial region.

[0496] The third lens 1530 may have negative refractive power, an object-side surface of the third lens 1530 may be convex in the paraxial region, and an image-side surface of the third lens 1530 may be concave in the paraxial region.

[0497] The fourth lens 1540 may have positive refractive power, and the object-side surface and the image-side surface of the fourth lens 1540 may be convex in a paraxial region.

[0498] The fifth lens 1550 may have negative refractive power, an object-side surface of the fifth lens 1550 may be concave in the paraxial region, and an image-side surface of the fifth lens 1550 may be convex in the paraxial region.

[0499] The sixth lens 1560 may have negative refractive power, an object-side surface of the sixth lens 1560 may be convex in the paraxial region, and an image-side surface of the sixth lens 1560 may be concave in the paraxial region.

[0500] The seventh lens 1570 may have negative refractive power, an object-side surface of the seventh lens 1570 may be convex in the paraxial region, and an image-side surface of the seventh lens 1570 may be concave in the paraxial region.

[0501] In addition, an inflection point may be formed on the object-side surface of the seventh lens 1570. For example, the object-side surface of the seventh lens 1570 may be convex in a paraxial region and become concave toward an edge of the object-side surface of the seventh lens 1570.

[0502] In addition, one inflection point may be formed on the image-side surface of the seventh lens 1570. For example, the image-side surface of the seventh lens 1570 may be concave in a paraxial region and become convex toward an edge of the image-side surface of the seventh lens 1570.

[0503] Although Fig.29 Although not shown in FIG. 1 , the aperture stop is set at a distance of 1.050 mm from the object side of the first lens 1510 toward the imaging plane of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the values ​​of TTL and SL of Example 15 listed in Table 53 presented later in this application.

[0504] Table 29 below shows the composition Fig.29 The physical properties of the lenses and other elements of the optical imaging system are shown in Table 30 below. Fig.29 The aspheric surface coefficient of the lens. Fig.29 Both surfaces of all lenses are aspherical.

[0505] Table 29

[0506]

[0507]

[0508] Table 30

[0509] 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

[0510] Example 16

[0511] Fig.31 is a view showing a sixteenth example of the optical imaging system, and Fig.32 Shows Fig.31 Aberration curves of the optical imaging system.

[0512] The sixteenth example of the 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.

[0513] The first lens 1610 may have positive refractive power, an object-side surface of the first lens 1610 may be convex in the paraxial region, and an image-side surface of the first lens 1610 may be concave in the paraxial region.

[0514] The second lens 1620 may have positive refractive power, an object-side surface of the second lens 1620 may be convex in the paraxial region, and an image-side surface of the second lens 1620 may be concave in the paraxial region.

[0515] The third lens 1630 may have negative refractive power, an object-side surface of the third lens 1630 may be convex in the paraxial region, and an image-side surface of the third lens 1630 may be concave in the paraxial region.

[0516] The fourth lens 1640 may have negative refractive power, an object-side surface of the fourth lens 1640 may be convex in the paraxial region, and an image-side surface of the fourth lens 1640 may be concave in the paraxial region.

[0517] The fifth lens 1650 may have positive refractive power, an object-side surface of the fifth lens 1650 may be convex in the paraxial region, and an image-side surface of the fifth lens 1650 may be concave in the paraxial region.

[0518] The sixth lens 1660 may have positive refractive power, and the object-side surface and the image-side surface of the sixth lens 1660 may be convex in a paraxial region.

[0519] The seventh lens 1670 may have negative refractive power, and the object-side surface and the image-side surface of the seventh lens 1670 may be concave in a paraxial region.

[0520] In addition, one inflection point may be formed on the object-side surface of the seventh lens 1670. For example, the object-side surface of the seventh lens 1670 may be concave in a paraxial region and become convex toward an edge of the object-side surface of the seventh lens 1670.

[0521] In addition, one inflection point may be formed on the image-side surface of the seventh lens 1670. For example, the image-side surface of the seventh lens 1670 may be concave in a paraxial region and become convex toward an edge of the image-side surface of the seventh lens 1670.

[0522] Although Fig.31 Although not shown in FIG. 1 , the aperture stop is set at a distance of 1.002 mm from the object side of the first lens 1610 toward the imaging plane of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the values ​​of TTL and SL of Example 16 listed in Table 53 presented later in this application.

[0523] Table 31 below shows the composition Fig.31 The physical properties of the lenses and other elements of the optical imaging system are shown in Table 32 below. Fig.31 The aspheric surface coefficient of the lens. Fig.31 Both surfaces of all lenses are aspherical.

[0524] Table 31

[0525]

[0526]

[0527] Table 32

[0528] K A B C D E F G H S1 -1.5984 0.02201 0.00112 -0.0095 0.00713 -0.0076 0.00279 -0.0002 0 S2 0 -0.0267 -0.08 0.12037 -0.1085 0.07767 -0.0361 0.00741 0 S3 0 0.01852 -0.0944 0.1151 -0.0877 0.07128 -0.0433 0.01041 0 S4 93.0315 -0.0833 0.30018 -0.6564 0.78727 -0.5697 0.2292 -0.0392 0 S5 -11.518 -0.2115 0.48742 -0.8074 0.95087 -0.7204 0.32387 -0.0644 0 S6 -4.4222 -0.0999 0.19853 -0.0999 -0.0975 0.27732 -0.2246 0.0743 0 S7 0 -0.0315 -0.1501 0.44969 -1.0958 1.44445 -1.0093 0.2957 0 S8 0 -0.1532 -0.084 0.36754 -0.5986 0.47504 -0.1986 0.03659 0 S9 -76.367 -0.2472 -0.1038 0.53081 -0.6528 0.42248 -0.1503 0.02265 0 S10 0 -0.1927 -0.1015 0.31685 -0.3163 0.19124 -0.0703 0.01153 0 S11 0 0.02452 -0.0539 -0.0674 0.10823 -0.0625 0.01679 -0.0017 0 S12 -1.5099 0.20226 -0.1451 0.00041 0.04309 -0.0194 0.00346 -0.0002 0 S13 -6.0002 0.00897 -0.1914 0.15961 -0.0593 0.01227 -0.0015 9.7E-05 -3E-06 S14 -0.8696 -0.1901 0.07654 -0.0229 0.00487 -0.0008 8.7E-05 -6E-06 2.5E-07

[0529] Example 17

[0530] Fig.33 is a view showing a seventeenth example of the optical imaging system, and Fig.34 Shows Fig.33 Aberration curves of the optical imaging system.

[0531] The seventeenth example of the 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 first lens 1710 and the second lens 1720.

[0532] The first lens 1710 may have negative refractive power, an object-side surface of the first lens 1710 may be convex in the paraxial region, and an image-side surface of the first lens 1710 may be concave in the paraxial region.

[0533] The second lens 1720 may have positive refractive power, an object-side surface of the second lens 1720 may be convex in the paraxial region, and an image-side surface of the second lens 1720 may be concave in the paraxial region.

[0534] The third lens 1730 may have negative refractive power, an object-side surface of the third lens 1730 may be convex in the paraxial region, and an image-side surface of the third lens 1730 may be concave in the paraxial region.

[0535] The fourth lens 1740 may have negative refractive power, an object-side surface of the fourth lens 1740 may be convex in the paraxial region, and an image-side surface of the fourth lens 1740 may be concave in the paraxial region.

[0536] The fifth lens 1750 may have positive refractive power, an object-side surface of the fifth lens 1750 may be convex in the paraxial region, and an image-side surface of the fifth lens 1750 may be concave in the paraxial region.

[0537] The sixth lens 1760 may have positive refractive power, and the object-side surface and the image-side surface of the sixth lens 1760 may be convex in a paraxial region.

[0538] The seventh lens 1770 may have negative refractive power, and the object-side surface and the image-side surface of the seventh lens 1770 may be concave in a paraxial region.

[0539] In addition, one inflection point may be formed on the object-side surface of the seventh lens 1770. For example, the object-side surface of the seventh lens 1770 may be concave in a paraxial region and become convex toward an edge of the object-side surface of the seventh lens 1770.

[0540] In addition, two inflection points may be formed on the image-side surface of the seventh lens 1770. For example, the image-side surface of the seventh lens 1770 may be concave in a paraxial region, become convex in a region outside the paraxial region, and become concave toward an edge of the image-side surface of the seventh lens 1770.

[0541] Although Fig.33 Although not shown in FIG. 1 , the aperture stop is set at a distance of 0.374 mm from the object side of the first lens 1710 toward the imaging plane of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the values ​​of TTL and SL of Example 17 listed in Table 53 presented later in this application.

[0542] Table 33 below shows the composition Fig.33 The physical properties of the lenses and other elements of the optical imaging system are shown in Table 34 below. Fig.33 The aspheric surface coefficient of the lens. Fig.33 Both surfaces of all lenses are aspherical.

[0543] Table 33

[0544]

[0545] Table 34

[0546]

[0547]

[0548] Example 18

[0549] Fig.35 is a view showing an eighteenth example of the optical imaging system, and Fig.36 Shows Fig.35 Aberration curves of the optical imaging system.

[0550] The eighteenth example of the 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.

[0551] The first lens 1810 may have positive refractive power, an object-side surface of the first lens 1810 may be convex in the paraxial region, and an image-side surface of the first lens 1810 may be concave in the paraxial region.

[0552] The second lens 1820 may have negative refractive power, the object-side surface of the second lens 1820 may be convex in the paraxial region, and the image-side surface of the second lens 1820 may be concave in the paraxial region.

[0553] The third lens 1830 may have positive refractive power, an object-side surface of the third lens 1830 may be convex in the paraxial region, and an image-side surface of the third lens 1830 may be concave in the paraxial region.

[0554] The fourth lens 1840 may have negative refractive power, an object-side surface of the fourth lens 1840 may be convex in the paraxial region, and an image-side surface of the fourth lens 1840 may be concave in the paraxial region.

[0555] The fifth lens 1850 may have negative refractive power, an object-side surface of the fifth lens 1850 may be convex in the paraxial region, and an image-side surface of the fifth lens 1850 may be concave in the paraxial region.

[0556] The sixth lens 1860 may have positive refractive power, and the object-side surface and the image-side surface of the sixth lens 1860 may be convex in a paraxial region.

[0557] The seventh lens 1870 may have negative refractive power, and the object-side surface and the image-side surface of the seventh lens 1870 may be concave in a paraxial region.

[0558] In addition, one inflection point may be formed on the object-side surface of the seventh lens 1870. For example, the object-side surface of the seventh lens 1870 may be concave in a paraxial region and become convex toward an edge of the object-side surface of the seventh lens 1870.

[0559] In addition, two inflection points may be formed on the image-side surface of the seventh lens 1870. For example, the image-side surface of the seventh lens 1870 may be concave in the paraxial region, become convex in the region outside the paraxial region, and become concave toward the edge of the image-side surface of the seventh lens 1870.

[0560] Although Fig.35 Although not shown in FIG. 1 , the aperture stop is set at a distance of 0.920 mm from the object side of the first lens 1810 toward the imaging plane of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the values ​​of TTL and SL of Example 18 listed in Table 53 presented later in this application.

[0561] Table 35 below shows the composition Fig.35The physical properties of the lenses and other elements of the optical imaging system are shown in Table 36 below. Fig.35 The aspheric surface coefficient of the lens. Fig.35 Both surfaces of all lenses are aspherical.

[0562] Table 35

[0563]

[0564]

[0565] Table 36

[0566] K A B C D E F G H J S1 -1.1385 0.01411 0.02295 -0.0501 0.07134 -0.0603 0.02979 -0.0079 0.00085 0 S2 12.6728 -0.0899 0.07918 -0.0381 -0.0163 0.03432 -0.0229 0.00765 -0.0011 0 S3 9.9647 -0.1473 0.11176 0.0661 -0.2646 0.2998 -0.1775 0.05556 -0.0072 0 S4 -0.5888 -0.076 0.06764 0.06018 -0.1804 0.16978 -0.0679 0.00574 0.00246 0 S5 0 -0.0278 0.04242 -0.1578 0.27763 -0.3017 0.1871 -0.0609 0.0081 0 S6 -99 -0.0505 0.03441 -0.0587 0.04282 0.00164 -0.0357 0.02532 -0.0056 0 S7 0 -0.138 0.00961 0.05794 -0.2108 0.32353 -0.2566 0.10091 -0.0155 0 S8 0 -0.1363 0.10009 -0.1765 0.20747 -0.1546 0.07102 -0.0193 0.00247 0 S9 0 -0.2113 0.22879 -0.2271 0.16311 -0.0851 0.03083 -0.0071 0.00076 0 S10 -62.082 -0.1439 0.05554 -0.0007 -0.029 0.0245 -0.009 0.00158 -0.0001 0 S11 -21.515 0.00471 -0.0144 0.00292 -0.0019 0.00064 -8E-05 1.3E-06 1.8E-07 0 S12 -3.7544 0.10351 -0.0491 0.01247 -0.0024 0.00034 -2E-05 -3E-07 9E-08 0 S13 -11.142 -0.0315 -0.0345 0.02395 -0.0062 0.00086 -7E-05 2.9E-06 -5E-08 0 S14 -1.2542 -0.091 0.02499 -0.0054 0.00089 -0.0001 1.3E-05 -1E-06 6E-08 -1E-09

[0567] Example 19

[0568] Fig.37 is a view showing a nineteenth example of the optical imaging system, and Fig.38 Shows Fig.37 Aberration curves of the optical imaging system.

[0569] The nineteenth example of the 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 second lens 1920 and the third lens 1930.

[0570] The first lens 1910 may have positive refractive power, an object-side surface of the first lens 1910 may be convex in the paraxial region, and an image-side surface of the first lens 1910 may be concave in the paraxial region.

[0571] The second lens 1920 may have positive refractive power, an object-side surface of the second lens 1920 may be convex in the paraxial region, and an image-side surface of the second lens 1920 may be concave in the paraxial region.

[0572] The third lens 1930 may have negative refractive power, an object-side surface of the third lens 1930 may be convex in the paraxial region, and an image-side surface of the third lens 1930 may be concave in the paraxial region.

[0573] The fourth lens 1940 may have positive refractive power, an object-side surface of the fourth lens 1940 may be convex in the paraxial region, and an image-side surface of the fourth lens 1940 may be concave in the paraxial region.

[0574] The fifth lens 1950 may have negative refractive power, an object-side surface of the fifth lens 1950 may be convex in the paraxial region, and an image-side surface of the fifth lens 1950 may be concave in the paraxial region.

[0575] The sixth lens 1960 may have positive refractive power, an object-side surface of the sixth lens 1960 may be convex in the paraxial region, and an image-side surface of the sixth lens 1960 may be concave in the paraxial region.

[0576] The seventh lens 1970 may have positive refractive power, an object-side surface of the seventh lens 1970 may be convex in the paraxial region, and an image-side surface of the seventh lens 1970 may be concave in the paraxial region.

[0577] In addition, two inflection points may be formed on the object-side surface of the seventh lens 1970. For example, the object-side surface of the seventh lens 1970 may be convex in the paraxial region, become concave in the region outside the paraxial region, and become convex toward the edge of the object-side surface of the seventh lens 1970.

[0578] In addition, one inflection point may be formed on the image-side surface of the seventh lens 1970. For example, the image-side surface of the seventh lens 1970 may be concave in a paraxial region and become convex toward an edge of the image-side surface of the seventh lens 1970.

[0579] Although Fig.37 Although not shown in FIG. 1 , the aperture stop is set at a distance of 1.128 mm from the object side of the first lens 1910 toward the imaging surface of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the values ​​of TTL and SL of Example 19 listed in Table 53 presented later in this application.

[0580] Table 37 below shows the composition Fig.37 The physical properties of the lenses and other elements of the optical imaging system are shown in Table 38 below. Fig.37 The aspheric surface coefficient of the lens. Fig.37 Both surfaces of all lenses are aspherical.

[0581] Table 37

[0582]

[0583] Table 38

[0584]

[0585]

[0586] Example 20

[0587] Fig.39is a view showing a twentieth example of the optical imaging system, and Fig.40 Shows Fig.39 Aberration curves of the optical imaging system.

[0588] The twentieth example of the 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 (not shown) disposed between the second lens 2020 and the third lens 2030.

[0589] The first lens 2010 may have positive refractive power, an object-side surface of the first lens 2010 may be convex in the paraxial region, and an image-side surface of the first lens 2010 may be concave in the paraxial region.

[0590] The second lens 2020 may have positive refractive power, an object-side surface of the second lens 2020 may be convex in the paraxial region, and an image-side surface of the second lens 2020 may be concave in the paraxial region.

[0591] The third lens 2030 may have negative refractive power, an object-side surface of the third lens 2030 may be convex in the paraxial region, and an image-side surface of the third lens 2030 may be concave in the paraxial region.

[0592] The fourth lens 2040 may have positive refractive power, an object-side surface of the fourth lens 2040 may be convex in the paraxial region, and an image-side surface of the fourth lens 2040 may be concave in the paraxial region.

[0593] The fifth lens 2050 may have negative refractive power, an object-side surface of the fifth lens 2050 may be convex in the paraxial region, and an image-side surface of the fifth lens 2050 may be concave in the paraxial region.

[0594] The sixth lens 2060 may have positive refractive power, an object-side surface of the sixth lens 2060 may be convex in the paraxial region, and an image-side surface of the sixth lens 2060 may be concave in the paraxial region.

[0595] The seventh lens 2070 may have positive refractive power, an object-side surface of the seventh lens 2070 may be convex in the paraxial region, and an image-side surface of the seventh lens 2070 may be concave in the paraxial region.

[0596] In addition, two inflection points may be formed on the object-side surface of the seventh lens 2070. For example, the object-side surface of the seventh lens 2070 may be convex in a paraxial region, become concave in a region outside the paraxial region, and become convex toward an edge of the object-side surface of the seventh lens 2070.

[0597] In addition, one inflection point may be formed on the image-side surface of the seventh lens 2070. For example, the image-side surface of the seventh lens 2070 may be concave in a paraxial region and become convex toward an edge of the image-side surface of the seventh lens 2070.

[0598] Although Fig.39 Although not shown in FIG. 1 , the aperture stop is set at a distance of 1.082 mm from the object side of the first lens 2010 toward the imaging surface of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the values ​​of TTL and SL of Example 20 listed in Table 53 presented later in this application.

[0599] Table 39 below shows the composition Fig.39 The physical properties of the lenses and other components of the optical imaging system are shown in Table 40 below. Fig.39 The aspheric surface coefficient of the lens. Fig.39 Both surfaces of all lenses are aspherical.

[0600] Table 39

[0601]

[0602]

[0603] Table 40

[0604] 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

[0605] Example 21

[0606] Fig.41 is a view showing a twenty-first example of the optical imaging system, and Fig.42 Shows Fig.41 Aberration curves of the optical imaging system.

[0607] The twenty-first example of the 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.

[0608] The first lens 2110 may have positive refractive power, an object-side surface of the first lens 2110 may be convex in the paraxial region, and an image-side surface of the first lens 2110 may be concave in the paraxial region.

[0609] The second lens 2120 may have positive refractive power, an object-side surface of the second lens 2120 may be convex in the paraxial region, and an image-side surface of the second lens 2120 may be concave in the paraxial region.

[0610] The third lens 2130 may have negative refractive power, an object-side surface of the third lens 2130 may be convex in the paraxial region, and an image-side surface of the third lens 2130 may be concave in the paraxial region.

[0611] The fourth lens 2140 may have positive refractive power, an object-side surface of the fourth lens 2140 may be convex in the paraxial region, and an image-side surface of the fourth lens 2140 may be concave in the paraxial region.

[0612] The fifth lens 2150 may have negative refractive power, an object-side surface of the fifth lens 2150 may be convex in the paraxial region, and an image-side surface of the fifth lens 2150 may be concave in the paraxial region.

[0613] The sixth lens 2160 may have positive refractive power, an object-side surface of the sixth lens 2160 may be convex in the paraxial region, and an image-side surface of the sixth lens 2160 may be concave in the paraxial region.

[0614] The seventh lens 2170 may have negative refractive power, an object-side surface of the seventh lens 2170 may be convex in the paraxial region, and an image-side surface of the seventh lens 2170 may be concave in the paraxial region.

[0615] In addition, one inflection 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 be convex in a paraxial region and become concave at an edge toward the object-side surface of the seventh lens 2170.

[0616] In addition, one inflection point may be formed on the image-side surface of the seventh lens 2170. For example, the image-side surface of the seventh lens 2170 may be concave in a paraxial region and become convex toward an edge of the image-side surface of the seventh lens 2170.

[0617] Although Fig.41 Although not shown in FIG. 2 , the aperture stop is set at a distance of 1.201 mm from the object side of the first lens 2110 toward the imaging surface of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the values ​​of TTL and SL of Example 21 listed in Table 53 presented later in this application.

[0618] Table 41 below shows the composition Fig.41 The physical properties of the lenses and other elements of the optical imaging system are shown in Table 42 below. Fig.41 The aspheric surface coefficient of the lens. Fig.41Both surfaces of all lenses are aspherical.

[0619] Table 41

[0620]

[0621]

[0622] Table 42

[0623] K A B C D E F G H J S1 -1 -0.0109 0.01609 -0.0521 0.06751 -0.0541 0.02509 -0.0062 0.0007 -2E-05 S2 -12.313 0.02487 -0.0812 0.06862 -0.0854 0.09225 -0.0564 0.01904 -0.0034 0.00024 S3 -1.1961 -0.0151 -0.0414 0.07095 -0.1526 0.20198 -0.1389 0.05196 -0.0102 0.00082 S4 -7.0515 -0.0439 0.22052 -0.5763 0.82041 -0.7024 0.37342 -0.1213 0.02212 -0.0017 S5 9.49254 -0.0841 0.26636 -0.6308 0.9198 -0.8507 0.50166 -0.1833 0.03808 -0.0035 S6 1.62777 -0.0537 0.06723 -0.0789 0.06026 -0.0261 0.00452 0.00104 -0.0003 -4E-05 S7 -4.8767 -0.0251 -0.0455 0.15689 -0.312 0.36258 -0.2555 0.10673 -0.024 0.00222 S8 5.85919 -0.0325 -0.0105 0.02258 -0.033 0.02143 -0.0047 -0.0015 0.00104 -0.0001 S9 -43.521 -0.009 -0.005 0.02832 -0.0424 0.0317 -0.0144 0.00396 -0.0006 3.8E-05 S10 -16.247 -0.0574 0.02998 -0.0024 -0.0083 0.00556 -0.0019 0.00037 -4E-05 1.7E-06 S11 -12.323 0.04452 -0.0879 0.07913 -0.052 0.02134 -0.0055 0.00087 -8E-05 2.8E-06 S12 -0.1058 -0.0342 0.019 -0.0122 0.00328 -0.0005 6.3E-05 -9E-06 8E-07 -3E-08 S13 -0.7464 -0.2683 0.08381 -0.0065 -0.0032 0.00117 -0.0002 1.6E-05 -8E-07 1.5E-08 S14 -1.4016 -0.2382 0.11628 -0.0418 0.01061 -0.0018 0.0002 -1E-05 5E-07 -8E-09

[0624] Example 22

[0625] Fig.43 is a view showing a twenty-second example of the optical imaging system, and Fig.44 Shows Fig.43 Aberration curves of the optical imaging system.

[0626] The twenty-second example of the 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 2320 and the third lens 2230.

[0627] The first lens 2210 may have positive refractive power, an object-side surface of the first lens 2210 may be convex in the paraxial region, and an image-side surface of the first lens 2210 may be concave in the paraxial region.

[0628] The second lens 2220 may have negative refractive power, the object-side surface of the second lens 2220 may be convex in the paraxial region, and the image-side surface of the second lens 2220 may be concave in the paraxial region.

[0629] The third lens 2230 may have negative refractive power, the object-side surface of the third lens 2230 may be convex in the paraxial region, and the image-side surface of the third lens 2230 may be concave in the paraxial region.

[0630] The fourth lens 2240 may have positive refractive power, an object-side surface of the fourth lens 2240 may be convex in the paraxial region, and an image-side surface of the fourth lens 2240 may be concave in the paraxial region.

[0631] The fifth lens 2250 may have negative refractive power, an object-side surface of the fifth lens 2250 may be convex in the paraxial region, and an image-side surface of the fifth lens 2250 may be concave in the paraxial region.

[0632] The sixth lens 2260 may have negative refractive power, and the object-side surface and the image-side surface of the sixth lens 2260 may be concave in a paraxial region.

[0633] The seventh lens 2270 may have positive refractive power, an object-side surface of the seventh lens 2270 may be convex in the paraxial region, and an image-side surface of the seventh lens 2270 may be concave in the paraxial region.

[0634] In addition, two inflection points 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 be convex in the paraxial region, become concave in the region outside the paraxial region, and become convex toward the edge of the object-side surface of the seventh lens 2270.

[0635] In addition, one inflection point may be formed on the image-side surface of the seventh lens 2270. For example, the image-side surface of the seventh lens 2270 may be concave in a paraxial region and become convex toward an edge of the image-side surface of the seventh lens 2270.

[0636] Although Fig.43 Although not shown in FIG. 2 , the aperture stop is set at a distance of 0.951 mm from the object side surface of the first lens 2210 toward the imaging plane of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the values ​​of TTL and SL of Example 22 listed in Table 53 presented later in this application.

[0637] Table 43 below shows the composition Fig.43 The physical properties of the lenses and other elements of the optical imaging system are shown in Table 44 below. Fig.43 The aspheric surface coefficient of the lens. Fig.43 Both surfaces of all lenses are aspherical.

[0638] Table 43

[0639]

[0640] Table 44

[0641]

[0642]

[0643] Example 23

[0644] Fig.45 is a view showing a twenty-third example of the optical imaging system, and Fig.46 Shows Fig.45 Aberration curves of the optical imaging system.

[0645] The twenty-third example of the 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.

[0646] The first lens 2310 may have positive refractive power, an object-side surface of the first lens 2310 may be convex in the paraxial region, and an image-side surface of the first lens 2310 may be concave in the paraxial region.

[0647] The second lens 2320 may have negative refractive power, the object-side surface of the second lens 2320 may be convex in the paraxial region, and the image-side surface of the second lens 2320 may be concave in the paraxial region.

[0648] The third lens 2330 may have negative refractive power, the object-side surface of the third lens 2330 may be convex in the paraxial region, and the image-side surface of the third lens 2330 may be concave in the paraxial region.

[0649] The fourth lens 2340 may have positive refractive power, an object-side surface of the fourth lens 2340 may be convex in the paraxial region, and an image-side surface of the fourth lens 2340 may be concave in the paraxial region.

[0650] The fifth lens 2350 may have negative refractive power, an object-side surface of the fifth lens 2350 may be convex in the paraxial region, and an image-side surface of the fifth lens 2350 may be concave in the paraxial region.

[0651] The sixth lens 2360 may have negative refractive power, and the object-side surface and the image-side surface of the sixth lens 2360 may be concave in a paraxial region.

[0652] The seventh lens 2370 may have positive refractive power, an object-side surface of the seventh lens 2370 may be convex in the paraxial region, and an image-side surface of the seventh lens 2370 may be concave in the paraxial region.

[0653] In addition, an inflection point may be formed on the object-side surface of the seventh lens 2370. For example, the object-side surface of the seventh lens 2370 may be convex in a paraxial region and become concave toward an edge of the object-side surface of the seventh lens 2370.

[0654] In addition, one inflection point may be formed on the image-side surface of the seventh lens 2370. For example, the image-side surface of the seventh lens 2370 may be concave in a paraxial region and become convex toward an edge of the image-side surface of the seventh lens 2370.

[0655] Although Fig.45 Although not shown in FIG. 2 , the aperture stop is set at a distance of 0.963 mm from the object side of the first lens 2310 toward the imaging surface of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the values ​​of TTL and SL of Example 23 listed in Table 53 presented later in this application.

[0656] Table 45 below shows the composition Fig.45 The physical properties of the lenses and other elements of the optical imaging system are shown in Table 46 below. Fig.45 The aspheric surface coefficient of the lens. Fig.45 Both surfaces of all lenses are aspherical.

[0657] Table 45

[0658]

[0659]

[0660] Table 46

[0661] K A B C D E F G H J S1 -0.2398 5.3E-05 0.02249 -0.0553 0.07912 -0.0725 0.04077 -0.0137 0.00194 0 S2 6.04243 -0.0363 0.03435 0.01444 -0.1124 0.16667 -0.1307 0.05398 -0.0092 0 S3 -1.7137 -0.0472 0.04097 0.02639 -0.116 0.18951 -0.1701 0.08267 -0.0161 0 S4 -0.2358 -0.0167 -0.01 0.05643 -0.0195 -0.1069 0.22786 -0.1897 0.06253 0 S5 -0.0716 -0.0169 -0.0047 -0.1892 0.62952 -1.0256 0.96124 -0.4977 0.11269 0 S6 -1.1573 0.01994 -0.1372 0.14441 -0.0555 0.14079 -0.2746 0.2067 -0.0539 0 S7 -28.459 0.02126 -0.1017 0.06112 0.04565 0.01801 -0.1503 0.1307 -0.0346 0 S8 -2.3038 -0.0386 0.03937 -0.1206 0.2443 -0.4112 0.47457 -0.3301 0.12291 -0.0182 S9 -3.3254 -0.1025 0.04401 -0.1067 0.23796 -0.3262 0.24087 -0.0929 0.01464 0 S10 -25.215 -0.0274 -0.1331 0.19086 -0.1562 0.07712 -0.0231 0.00411 -0.0003 0 S11 23.2017 0.16789 -0.2882 0.24139 -0.1422 0.05329 -0.0119 0.00149 -8E-05 0 S12 -49.948 0.00684 -0.0175 0.00273 0.0001 -0.0001 3.8E-05 -6E-06 3.8E-07 0 S13 -1.9292 -0.2614 0.12601 -0.0405 0.00941 -0.0015 0.00015 -9E-06 2.2E-07 0 S14 -0.8288 -0.1737 0.06522 -0.0206 0.00465 -0.0007 6.3E-05 -3E-06 6.6E-08 0

[0662] Example 24

[0663] Fig.47 is a view showing a twenty-fourth example of the optical imaging system, and Fig.48 Shows Fig.47 Aberration curves of the optical imaging system.

[0664] The twenty-fourth example of the 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.

[0665] The first lens 2410 may have positive refractive power, an object-side surface of the first lens 2410 may be convex in the paraxial region, and an image-side surface of the first lens 2410 may be concave in the paraxial region.

[0666] The second lens 2420 may have negative refractive power, the object-side surface of the second lens 2420 may be convex in the paraxial region, and the image-side surface of the second lens 2420 may be concave in the paraxial region.

[0667] The third lens 2430 may have positive refractive power, an object-side surface of the third lens 2430 may be concave in the paraxial region, and an image-side surface of the third lens 2430 may be convex in the paraxial region.

[0668] The fourth lens 2440 may have negative refractive power, an object-side surface of the fourth lens 2440 may be convex in the paraxial region, and an image-side surface of the fourth lens 2440 may be concave in the paraxial region.

[0669] The fifth lens 2450 may have positive refractive power, an object-side surface of the fifth lens 2450 may be concave in the paraxial region, and an image-side surface of the fifth lens 2450 may be convex in the paraxial region.

[0670] The sixth lens 2460 may have positive refractive power, an object-side surface of the sixth lens 2460 may be concave in the paraxial region, and an image-side surface of the sixth lens 2460 may be convex in the paraxial region.

[0671] The seventh lens 2470 may have negative refractive power, and the object-side surface and the image-side surface of the seventh lens 2470 may be concave in a paraxial region.

[0672] In addition, one inflection point may be formed on the image-side surface of the seventh lens 2470. For example, the image-side surface of the seventh lens 2470 may be concave in a paraxial region and become convex toward an edge of the image-side surface of the seventh lens 2470.

[0673] Although Fig.47 Although not shown in FIG. 24 , the aperture stop is set at a distance of 0.872 mm from the object side of the first lens 2410 toward the imaging surface of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the values ​​of TTL and SL of Example 24 listed in Table 53 presented later in this application.

[0674] Table 47 below shows the composition Fig.47 The physical properties of the lenses and other elements of the optical imaging system are shown in Table 48 below. Fig.47 The aspheric surface coefficient of the lens. Fig.47 Both surfaces of all lenses are aspherical.

[0675] Table 47

[0676]

[0677] Table 48

[0678] K A B C D E F G H J S1 -1.0054 0.02246 0.02216 -0.0696 0.16036 -0.2238 0.18065 -0.0791 0.01412 0 S2 -1.5097 -0.1275 0.3975 -0.6982 0.68012 -0.322 0.02875 0.02904 -0.0076 0 S3 6.02943 -0.163 0.45041 -0.8514 1.05249 -0.8203 0.42351 -0.138 0.0213 0 S4 -0.8846 -0.0449 0.03929 0.15739 -0.6934 1.31707 -1.3069 0.67995 -0.143 0 S5 0 -0.0513 -0.0193 -0.016 0.00429 0.00341 -0.0155 0.03192 -0.0128 0 S6 0 -0.1089 -0.0569 0.35761 -0.9255 1.19468 -0.8604 0.33221 -0.0547 0 S7 -7.5 -0.2139 -0.0107 0.17878 -0.1827 -0.1159 0.3046 -0.1897 0.04049 0 S8 -43.341 -0.1402 -0.061 0.2777 -0.4123 0.3523 -0.1857 0.05641 -0.0071 0 S9 -35.081 -0.0602 0.07357 -0.1046 0.10843 -0.0726 0.02553 -0.0041 0.00022 0 S10 -1.5734 0.16205 -0.2197 0.18955 -0.107 0.03959 -0.0091 0.00113 -6E-05 0 S11 0.51533 0.21373 -0.3167 0.23989 -0.1217 0.03837 -0.0069 0.00066 -3E-05 0 S12 -1.1466 0.19671 -0.2565 0.15417 -0.0532 0.01146 -0.0015 0.00012 -4E-06 0 S13 -0.9056 -0.0077 -0.2094 0.18829 -0.0749 0.01671 -0.0022 0.00015 -5E-06 0 S14 -1.2797 -0.2192 0.10065 -0.0338 0.00878 -0.0018 0.00026 -2E-05 1.3E-06 -3E-08

[0679] Example 25

[0680] Fig.49 is a view showing a twenty-fifth example of the optical imaging system, and Fig.50 Shows Fig.49 Aberration curves of the optical imaging system.

[0681] The twenty-fifth example of the 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.

[0682] The first lens 2510 may have positive refractive power, the object-side surface of the first lens 2510 may be convex in the paraxial region, and the image-side surface of the first lens 2510 may be concave in the paraxial region.

[0683] The second lens 2520 may have negative refractive power, the object-side surface of the second lens 2520 may be convex in the paraxial region, and the image-side surface of the second lens 2520 may be concave in the paraxial region.

[0684] The third lens 2530 may have positive refractive power, an object-side surface of the third lens 2530 may be concave in the paraxial region, and an image-side surface of the third lens 2530 may be convex in the paraxial region.

[0685] The fourth lens 2540 may have positive refractive power, an object-side surface of the fourth lens 2540 may be convex in the paraxial region, and an image-side surface of the fourth lens 2540 may be concave in the paraxial region.

[0686] The fifth lens 2550 may have negative refractive power, an object-side surface of the fifth lens 2550 may be convex in the paraxial region, and an image-side surface of the fifth lens 2550 may be concave in the paraxial region.

[0687] The sixth lens 2560 may have positive refractive power, an object-side surface of the sixth lens 2560 may be convex in the paraxial region, and an image-side surface of the sixth lens 2560 may be concave in the paraxial region.

[0688] The seventh lens 2570 may have positive refractive power, an object-side surface of the seventh lens 2570 may be convex in the paraxial region, and an image-side surface of the seventh lens 2570 may be concave in the paraxial region.

[0689] In addition, two inflection points may be formed on the object-side surface of the seventh lens 2570. For example, the object-side surface of the seventh lens 2570 may be convex in the paraxial region, become concave in the region outside the paraxial region, and become convex toward the edge of the object-side surface of the seventh lens 2570.

[0690] In addition, an inflection point may be formed on the image-side surface of the seventh lens 2570. For example, the image-side surface of the seventh lens 2570 may be concave in a paraxial region and become convex toward an edge of the image-side surface of the seventh lens 2570.

[0691] Although Fig.49 Although not shown in FIG. 25 , the aperture stop is set at a distance of 0.866 mm from the object side of the first lens 2510 toward the imaging surface of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the values ​​of TTL and SL of Example 25 listed in Table 53 presented later in this application.

[0692] Table 49 below shows the composition Fig.49 The physical properties of the lenses and other components of the optical imaging system are shown in Table 50 below. Fig.49 The aspheric surface coefficient of the lens. Fig.49 Both surfaces of all lenses are aspherical.

[0693] Table 49

[0694]

[0695] Table 50

[0696]

[0697]

[0698] Example 26

[0699] Fig.51 is a view showing a twenty-sixth example of the optical imaging system, and Fig.52 Shows Fig.51 Aberration curves of the optical imaging system.

[0700] The twenty-sixth example of the 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.

[0701] The first lens 2610 may have positive refractive power, an object-side surface of the first lens 2610 may be convex in the paraxial region, and an image-side surface of the first lens 2610 may be concave in the paraxial region.

[0702] The second lens 2620 may have negative refractive power, the object-side surface of the second lens 2620 may be convex in the paraxial region, and the image-side surface of the second lens 2620 may be concave in the paraxial region.

[0703] The third lens 2630 may have positive refractive power, an object-side surface of the third lens 2630 may be concave in the paraxial region, and an image-side surface of the third lens 2630 may be convex in the paraxial region.

[0704] The fourth lens 2640 may have positive refractive power, an object-side surface of the fourth lens 2640 may be convex in the paraxial region, and an image-side surface of the fourth lens 2640 may be concave in the paraxial region.

[0705] The fifth lens 2650 may have negative refractive power, an object-side surface of the fifth lens 2650 may be convex in the paraxial region, and an image-side surface of the fifth lens 2650 may be concave in the paraxial region.

[0706] The sixth lens 2660 may have positive refractive power, an object-side surface of the sixth lens 2660 may be convex in the paraxial region, and an image-side surface of the sixth lens 2660 may be concave in the paraxial region.

[0707] The seventh lens 2670 may have positive refractive power, an object-side surface of the seventh lens 2670 may be convex in the paraxial region, and an image-side surface of the seventh lens 2670 may be concave in the paraxial region.

[0708] In addition, two inflection points may be formed on the object-side surface of the seventh lens 2670. For example, the object-side surface of the seventh lens 2670 may be convex in the paraxial region, become concave in the region outside the paraxial region, and become convex toward the edge of the object-side surface of the seventh lens 2670.

[0709] In addition, one inflection point may be formed on the image-side surface of the seventh lens 2670. For example, the image-side surface of the seventh lens 2670 may be concave in a paraxial region and become convex toward an edge of the image-side surface of the seventh lens 2670.

[0710] Although Fig.51 Although not shown in FIG. 26 , the aperture stop is set at a distance of 0.904 mm from the object side of the first lens 2610 toward the imaging surface of the optical imaging system. This distance is equal to TTL-SL and can be calculated from the values ​​of TTL and SL of Example 26 listed in Table 53 presented later in this application.

[0711] Table 51 below shows the composition Fig.51 The physical properties of the lenses and other elements of the optical imaging system are shown in Table 52 below. Fig.51 The aspheric surface coefficient of the lens. Fig.51 Both surfaces of all lenses are aspherical.

[0712] Table 51

[0713]

[0714]

[0715] Table 52

[0716] K A B C D E F G H J S1 -0.1061 -0.0082 0.0469 -0.0925 0.08107 -0.0129 -0.032 0.02237 -0.0047 0 S2 -36.188 -0.0502 0.16245 -0.4029 0.69307 -0.7643 0.50209 -0.1789 0.02641 0 S3 0.0036 -0.0795 0.20571 -0.548 1.07416 -1.291 0.90975 -0.3412 0.05201 0 S4 0.40382 -0.0325 0.08844 -0.3009 0.70037 -0.9194 0.67381 -0.2424 0.03077 0 S5 51.7577 0.00548 -0.1746 0.50176 -0.9395 1.14417 -0.9144 0.4407 -0.0937 0 S6 42.1637 0.09529 -0.4992 1.03966 -1.2284 0.81694 -0.2802 0.03842 4E-06 0 S7 -4.7579 0.1185 -0.4938 0.85535 -0.8643 0.51674 -0.185 0.04168 -0.0054 0 S8 -3.4393 0.04916 -0.194 0.31472 -0.3773 0.32494 -0.1878 0.06297 -0.0088 0 S9 -8.5449 -0.0638 0.02895 -0.0884 0.16492 -0.171 0.09832 -0.0306 0.00409 0 S10 -18.064 -0.0543 -0.0172 0.03209 -0.0179 0.00397 4.6E-06 -0.0001 7.7E-06 0 S11 -4.6497 0.05354 -0.0909 0.06134 -0.0311 0.01102 -0.0026 0.00036 -2E-05 0 S12 -50 0.01031 -0.0176 0.00573 -0.0015 0.0003 -4E-05 2.4E-06 -6E-08 0 S13 -2.606 -0.1177 0.01922 -0.0004 -1E-04 -1E-05 4.5E-06 -4E-07 9.4E-09 0 S14 -1.0102 -0.0979 0.01866 -0.0024 0.00013 2.1E-05 -6E-06 5.9E-07 -3E-08 5.6E-10

[0717] Table 53 below shows the total focal length f of the optical imaging system, the total length TTL of the optical imaging system (the distance from the object side surface of the first lens to the imaging surface along the optical axis), the distance SL from the aperture to the imaging surface along the optical axis, the f-number (F No.) of the optical imaging system (the total focal length f of the optical imaging system divided by the entrance pupil diameter of the optical imaging system, where both f and the entrance pupil diameter are expressed in mm), the image height (ImgHT) on the imaging surface (half the diagonal length of the imaging surface), and the field of view (FOV) of the optical imaging system for each of Examples 1 to 26 described herein. The values ​​of f, TTL, SL, and Img HT are expressed in mm. The value of F No. is a dimensionless value. The value of FOV is expressed in degrees.

[0718] Table 53

[0719] Example f TTL SL F No. Img HT FOV 1 4.315 5.290 4.472 1.56 3.552 77.30 2 4.780 5.827 4.402 1.57 4.050 79.02 3 4.256 5.190 3.931 1.58 3.680 80.22 4 3.950 4.819 3.650 1.58 3.250 77.47 5 4.350 5.300 4.917 1.58 3.384 79.58 6 4.280 5.100 4.369 1.71 3.535 77.84 7 4.401 5.300 4.142 1.69 3.728 79.31 8 4.536 5.499 4.300 1.69 3.728 77.56 9 4.544 5.500 4.423 1.67 3.728 77.54 10 4.904 6.000 4.728 1.69 4.128 78.90 11 4.447 5.144 4.894 2.07 3.528 75.63 12 4.700 5.650 4.882 1.81 3.928 78.82 13 4.400 5.200 4.576 1.81 3.261 72.55 14 3.994 5.125 4.484 1.57 3.261 77.38 15 3.750 4.560 3.510 1.68 3.261 80.29 16 4.020 4.940 3.938 1.58 3.226 76.00 17 4.333 5.320 4.946 1.50 3.752 80.30 18 4.589 5.600 4.680 1.60 4.250 84.74 19 4.588 5.617 4.489 1.69 3.728 76.90 20 4.451 5.703 4.621 1.63 3.728 78.60 21 4.825 6.000 4.799 1.54 4.200 80.78 22 4.586 5.461 4.510 1.79 3.728 76.96 23 4.592 5.478 4.515 1.79 3.728 76.90 24 4.302 5.240 4.368 1.95 3.728 80.46 25 4.966 5.993 5.127 2.36 4.128 78.45 26 4.667 5.797 4.893 1.85 4.128 81.80

[0720] The following Table 54 shows, in units of mm, the focal length f1 of the first lens, the focal length f2 of the second lens, the focal length f3 of the third lens, the focal length f4 of the fourth lens, the focal length f5 of the fifth lens, the focal length f6 of the sixth lens, and the focal length f7 of the seventh lens of each of Examples 1 to 26 described herein.

[0721] Table 54

[0722] Example f1 f2 f3 f4 f5 f6 f7 1 4.057 -11.047 44.073 -31.550 -17.744 2.228 -2.041 2 10.035 5.292 -7.613 22346862.05 86.584 -27.728 146.074 3 9.060 4.692 -7.025 -4861.622 80.126 -24.191 1985.391 4 8.409 4.355 -6.520 -4512.292 74.369 -22.452 1842.731 5 -64.233 3.248 -7.428 -43.722 52.425 3.010 -2.424 6 3.596 -7.349 -1245.238 15.657 -19.723 2.662 -2.171 7 9.952 4.985 -9.042 -60.959 28.461 -19.130 -36.205 8 9.489 5.133 -8.027 113.261 53.479 -17.195 -112.366 9 13.419 5.627 -8.921 16.142 -36.758 29.873 -12.281 10 18.920 5.318 -9.395 26.032 18.807 -15.873 -20.906 11 3.626 -6.978 10.551 125.381 -28.155 -367.720 -9.031 12 4.553 -11.109 33.932 36.853 268.352 4.100 -2.623 13 4.290 -10.606 30.978 14.871 -21.133 3.784 -2.465 14 5.677 -73.551 -122.716 15.510 207.375 3.799 -2.466 15 3.74 -9.75 -800 14.29 -99.5 -800 -19.01 16 4.858 13.152 -8.241 -32.625 34.583 2.462 -2.100 17 -31.530 3.137 -7.545 -130.033 80.886 2.966 -2.423 18 4.929 -16.125 30.244 -34.061 -58.155 2.600 -2.172 19 14.270 5.487 -9.006 21.072 -18.204 43.002 92.362 20 18.149 4.970 -8.433 25.591 -19.167 25.748 69.101 21 15.861 6.019 -10.927 22.137 -16.283 8.518 -8.229 22 3.808 -9.408 -530.750 22.837 -27.105 -22.324 66.015 23 3.971 -11.857 -77.132 19.846 -30.042 -18.041 68.790 24 3.620 -10.428 39.821 -38.762 4.342 10.303 -2.323 25 3.802 -8.955 64.595 12384.769 -17.503 299.093 57.797 26 4.499 -15.674 39.058 453.779 -18.160 102.612 59.134

[0723] The following Table 55 shows, in mm, the edge thickness of the first lens (L1edgeT), the edge thickness of the second lens (L2edgeT), the edge thickness of the third lens (L3edgeT), the edge thickness of the fourth lens (L4edgeT), the edge thickness of the fifth lens (L5edgeT), the edge thickness of the sixth lens (L6edgeT), and the edge thickness of the seventh lens (L7edgeT) of each of Examples 1 to 26 described herein.

[0724] Table 55

[0725]

[0726]

[0727] Table 56 below shows, in units of mm, a sag value at the outer end of the optical portion on the object side of the fifth lens of each of Examples 1 to 26 described herein (L5S1 sag), a sag value at the outer end of the optical portion on the image side of the fifth lens (L5S2 sag), a thickness of the seventh lens at a first inflection point on the object side of the seventh lens (Yc71P1), a thickness of the seventh lens at a second inflection point on the object side of the seventh lens (Yc71P2), a thickness of the seventh lens at a first inflection point on the image side of the seventh lens (Yc72P1), and a thickness of the seventh lens at a second inflection point on the image side of the seventh lens (Yc72P2).

[0728] Table 56

[0729]

[0730]

[0731] The following Table 57 shows the inner diameter (in mm) of each of the first to seventh spacers of each of Examples 1 to 26 described herein. 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.

[0732] Table 57

[0733]

[0734]

[0735] The following table 58 is in mm 3 The volume of each lens of the first lens to the seventh lens of each of Examples 1 to 26 described herein is shown in units. L1v is the volume of the first lens, L2v is the volume of the second 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.

[0736] Table 58

[0737]

[0738]

[0739] The following Table 59 shows the weight of each lens of the first lens to the seventh lens in each of Examples 1 to 26 described herein in mg. 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.

[0740] Table 59

[0741]

[0742]

[0743] Table 60 below shows the total outer diameter (including the rib) of each of the first to seventh lenses of each of Examples 1 to 26 described herein in mm. 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.

[0744] Table 60

[0745]

[0746]

[0747] Table 61 below shows the maximum thickness of the rib of each lens of the first lens to the seventh lens in each of Examples 1 to 26 described herein in units of mm. 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.

[0748] Table 61

[0749]

[0750]

[0751] Fig.56 is a cross-sectional view illustrating an example of the seventh lens.

[0752] Fig.56The total outer diameter (L7TR) of the seventh lens, the maximum thickness of the rib of the seventh lens (L7rt), the edge thickness (L7edge T) of the seventh lens, 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). Fig.56 Not shown, but the seventh lens may also have a second inflection point located on the image-side surface of the seventh lens, and the thickness of the seventh lens at the inflection point is Yc72P2 as listed in Table 56.

[0753] The above-described examples enable miniaturization of the optical imaging system and enable easy correction of aberrations to achieve high resolution.

[0754] Although the present disclosure includes specific examples, it will be apparent after understanding the disclosure of the present 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 in this application should be considered only in a descriptive sense and not for limiting purposes. The description of the features or aspects in each example should be considered to be applicable to similar features or aspects in other examples. Suitable results can also be obtained if the described techniques are performed in a different order, and / or if the components in the described systems, architectures, devices or circuits are combined in different ways and / or replaced or supplemented by other components or their equivalents. Therefore, the scope of the present disclosure should not be limited by detailed description, but by claims and their equivalents, and all variations within the scope of the claims and their equivalents should be understood to be included in the present disclosure.

Claims

1. An optical imaging system, comprising: A first lens having a positive refractive power, a convex object side and a concave image side; A second lens having a negative refractive power, a convex object side and a concave image side; A third lens having a positive refractive power, a convex object side and a concave image side; A fourth lens having a negative refractive power, a convex object side and a concave image side; A fifth lens having a negative refractive power, a convex object side and a concave image side; A sixth lens having a positive refractive power, a convex object side and a convex image side; And A seventh lens having a negative refractive power, a concave object side and a concave image side, wherein the optical imaging system includes a total of seven lenses having refractive power, and the first lens to the seventh lens are 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 wherein 0.1 < R1 / R5 < 0.7 and 0.05 < R1 / R6 < 0.9 are satisfied, where R1 is the radius of curvature of the object side of the first lens, R5 is the radius of curvature of the object side of the third lens, R6 is the radius of curvature of the image side of the third lens, and R1, R5, and R6 are expressed in the same unit of measurement, wherein a spacer is provided between the sixth lens and the seventh lens, and 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.

2. The optical imaging system according to claim 1, wherein: 0.01 < R1 / R4 < 1.3 is satisfied, where R4 is the radius of curvature of the image side of the second lens, and R1 and R4 are expressed in the same unit of measurement.

3. The optical imaging system according to claim 2, wherein: The sixth lens has a convex object side, the seventh lens has a concave image side, and wherein 0.6 < (R11 + R14) / (2*R1) < 3.0 is satisfied, where R11 is the radius of curvature of the object side of the sixth lens, R14 is the radius of curvature of the image side of the seventh lens, and R1, R11, and R14 are expressed in the same unit of measurement.

4. The optical imaging system according to claim 3, wherein: 0.2 < R1 / R11 < 1.2 is satisfied.

5. The optical imaging system according to claim 1, wherein: 0.1 < (1 / f1 + 1 / f2 + 1 / f3 + 1 / f4 + 1 / f5 + 1 / f6 + 1 / f7)*f < 0.8 is satisfied, 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 f1, f2, f3, f4, f5, f6, f7, and f are expressed in the same unit of measurement.

6. The optical imaging system according to claim 1, wherein: Satisfies 0.1 < (1 / f1+1 / f2+1 / f3+1 / f4+1 / f5+1 / f6+1 / f7)*TTL < 1.0, wherein 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 from the object side surface of the first lens to the imaging surface along the optical axis, and f1, f2, f3, f4, f5, f6, f7 and TTL are expressed in the same measurement unit.

7. The optical imaging system according to claim 1, wherein: 0.2<TD1 / D67<0.8 is satisfied, wherein TD1 is the thickness of the first lens along the optical axis, D67 is the distance from the object side surface of the sixth lens to the image side surface of the seventh lens along the optical axis, and TD1 and D67 are expressed in the same measurement unit.

8. The optical imaging system according to claim 7, wherein: 0.4 < ΣTD / TTL < 0.7 is satisfied, wherein ΣTD is the sum of thicknesses of the first lens to the seventh lens along the optical axis, TTL is the distance from the object side surface of the first lens to the imaging surface along the optical axis, and ΣTD and TTL are expressed in the same measurement unit.

9. The optical imaging system according to claim 8, wherein: 0.6 < TTL / (2*IMG HT) < 0.9 is satisfied, wherein IMG HT is half of the diagonal length of the imaging plane, and TTL and IMG HT are expressed in the same measurement unit.

10. The optical imaging system according to claim 9, wherein: 0.2<ΣSD / ΣTD<0.7 is satisfied, where ΣSD is the sum of air spaces between the first lens to the seventh lens along the optical axis, and ΣSD and ΣTD are expressed in the same measurement unit.

11. The optical imaging system according to claim 9, wherein: SD12<SD34 and SD56<SD67 are satisfied, wherein SD12 is a 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 a 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 a 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 a distance along the optical axis from the image side surface of the sixth lens to the object side surface of the seventh lens, and SD12, SD34, SD56 and SD67 are expressed in the same measurement unit.

12. 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 surface and a concave image-side surface; The third lens has positive refractive power, a concave object-side surface and a convex image-side surface; a fourth lens element having negative refractive power, a convex object-side surface and a concave image-side surface; a fifth lens element having positive refractive power, a concave object-side surface and a convex image-side surface; a sixth lens element having positive refractive power, a concave object-side surface and a convex image-side surface; as well as The seventh lens has negative refractive power, a concave object-side surface and a concave image-side surface. The optical imaging system includes a total of seven lenses with refractive power, and the first lens to the seventh lens are 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. Wherein, 0.01 < R1 / R4 < 1.3 is satisfied, wherein 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, and R1 and R4 are expressed in the same measurement unit, Wherein, 0.1 < (1 / f1+1 / f2+1 / f3+1 / f4+1 / f5+1 / f6+1 / f7)*TTL < 1.0 is satisfied, wherein 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 from the object side surface of the first lens to the imaging surface along the optical axis, and f1, f2, f3, f4, f5, f6, f7 and TTL are expressed in the same measurement unit, and Wherein, SD12<SD34 is satisfied, wherein SD12 is the distance from the image side surface of the first lens to the object side surface of the second lens along the optical axis, SD34 is the distance from the image side surface of the third lens to the object side surface of the fourth lens along the optical axis, and SD12 and SD34 are expressed in the same measurement unit.

13. The optical imaging system according to claim 12, wherein: Satisfies 0.1 < (1 / f1+1 / f2+1 / f3+1 / f4+1 / f5+1 / f6+1 / f7)*f < 0.8, where 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 units.

14. The optical imaging system of claim 12, wherein: 0.2<TD1 / D67<0.8 is satisfied, wherein TD1 is the thickness of the first lens along the optical axis, D67 is the distance from the object side surface of the sixth lens to the image side surface of the seventh lens along the optical axis, and TD1 and D67 are expressed in the same measurement unit.

15. The optical imaging system of claim 14, wherein: 0.4 < ΣTD / TTL < 0.7 is satisfied, where ΣTD is the sum of thicknesses of the first lens to the seventh lens along the optical axis, and ΣTD and TTL are expressed in the same measurement unit.

16. The optical imaging system of claim 15, wherein: 0.2<ΣSD / ΣTD<0.7 is satisfied, where ΣSD is the sum of air spaces between the first lens to the seventh lens along the optical axis, and ΣSD and ΣTD are expressed in the same measurement unit.

17. The optical imaging system of claim 12, wherein: SD56<SD34 is satisfied, where SD56 is a distance from an image-side surface of the fifth lens to an object-side surface of the sixth lens along the optical axis, and SD34 and SD56 are expressed in the same measurement unit.

18. The optical imaging system according to claim 17, wherein: SD56<SD67 is satisfied, where SD67 is a distance from an image side surface of the sixth lens to an object side surface of the seventh lens along the optical axis, and SD56 and SD67 are expressed in the same measurement unit.

19. The optical imaging system of claim 15, wherein: 0.6 < TTL / (2*IMG HT) < 0.9 is satisfied, wherein IMG HT is half of the diagonal length of the imaging plane, and TTL and IMG HT are expressed in the same measurement unit.

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