KR102597165B1 - Optical imaging system - Google Patents

Abstract

An imaging optical system according to an embodiment of the present invention includes: a first lens that is sequentially arranged along the optical axis from the object side toward the image side, has positive refractive power, has a convex object-side surface and a concave image-side surface; a second lens having negative refractive power, having an object-side surface that is convex and an image-side surface that is concave; a third lens having positive refractive power; a fourth lens having negative refractive power, having an object-side surface that is convex and an image-side surface that is concave; a fifth lens having negative refractive power; a sixth lens having positive refractive power; and a seventh lens having negative refractive power, wherein when the radius of curvature of the object-side surface of the first lens is R1 and the radius of curvature of the image-side surface of the second lens is R4, 0.01 < R1/R4 < 1.3 can be satisfied.

Description

Optical imaging system

The present invention relates to an imaging optical system.

Recent mobile terminals are equipped with cameras to enable video calls and photo taking. In addition, as the utilization of cameras mounted on portable terminals increases, the demand for high resolution and high performance of cameras for portable terminals is gradually increasing.

Accordingly, the number of lenses provided in cameras is increasing. However, since portable terminals equipped with cameras are becoming smaller, it is very difficult to place lenses within the camera.

Therefore, research is needed to enable aberration correction to achieve high resolution and to arrange multiple lenses within a limited space.

The purpose of an embodiment of the present invention is to provide an imaging optical system that can be easily applied to portable electronic devices and can easily correct aberrations.

An imaging optical system according to an embodiment of the present invention includes: a first lens that is sequentially arranged along the optical axis from the object side toward the image side, has positive refractive power, has a convex object-side surface and a concave image-side surface; a second lens having negative refractive power, having an object-side surface that is convex and an image-side surface that is concave; a third lens having positive refractive power; a fourth lens having negative refractive power, having an object-side surface that is convex and an image-side surface that is concave; a fifth lens having negative refractive power; a sixth lens having positive refractive power; and a seventh lens having negative refractive power, wherein when the radius of curvature of the object-side surface of the first lens is R1 and the radius of curvature of the image-side surface of the second lens is R4, 0.01 < R1/R4 < 1.3 can be satisfied.

According to the imaging optical system according to an embodiment of the present invention, it is possible to implement high resolution by facilitating aberration correction while miniaturizing the optical system.

1 is a configuration diagram of an imaging optical system according to a first embodiment of the present invention.
FIG. 2 is a curve showing the aberration characteristics of the imaging optical system shown in FIG. 1.
Figure 3 is a configuration diagram of an imaging optical system according to a second embodiment of the present invention.
FIG. 4 is a curve showing the aberration characteristics of the imaging optical system shown in FIG. 3.
Figure 5 is a configuration diagram of an imaging optical system according to a third embodiment of the present invention.
FIG. 6 is a curve showing the aberration characteristics of the imaging optical system shown in FIG. 5.
Figure 7 is a configuration diagram of an imaging optical system according to a fourth embodiment of the present invention.
FIG. 8 is a curve showing the aberration characteristics of the imaging optical system shown in FIG. 7.
Figure 9 is a configuration diagram of an imaging optical system according to a fifth embodiment of the present invention.
FIG. 10 is a curve showing the aberration characteristics of the imaging optical system shown in FIG. 9.
Figure 11 is a configuration diagram of an imaging optical system according to a sixth embodiment of the present invention.
FIG. 12 is a curve showing the aberration characteristics of the imaging optical system shown in FIG. 11.
Figure 13 is a configuration diagram of an imaging optical system according to a seventh embodiment of the present invention.
FIG. 14 is a curve showing the aberration characteristics of the imaging optical system shown in FIG. 13.
Figure 15 is a configuration diagram of an imaging optical system according to the eighth embodiment of the present invention.
FIG. 16 is a curve showing the aberration characteristics of the imaging optical system shown in FIG. 15.
Figure 17 is a configuration diagram of an imaging optical system according to the ninth embodiment of the present invention.
FIG. 18 is a curve showing the aberration characteristics of the imaging optical system shown in FIG. 17.
Figure 19 is a configuration diagram of an imaging optical system according to the tenth embodiment of the present invention.
FIG. 20 is a curve showing the aberration characteristics of the imaging optical system shown in FIG. 19.
Figure 21 is a configuration diagram of an imaging optical system according to the 11th embodiment of the present invention.
FIG. 22 is a curve showing the aberration characteristics of the imaging optical system shown in FIG. 21.
Figure 23 is a configuration diagram of an imaging optical system according to the twelfth embodiment of the present invention.
FIG. 24 is a curve showing the aberration characteristics of the imaging optical system shown in FIG. 23.
Figure 25 is a configuration diagram of an imaging optical system according to the 13th embodiment of the present invention.
FIG. 26 is a curve showing the aberration characteristics of the imaging optical system shown in FIG. 25.
Figure 27 is a configuration diagram of an imaging optical system according to the fourteenth embodiment of the present invention.
FIG. 28 is a curve showing the aberration characteristics of the imaging optical system shown in FIG. 27.
Figure 29 is a configuration diagram of an imaging optical system according to the 15th embodiment of the present invention.
FIG. 30 is a curve showing the aberration characteristics of the imaging optical system shown in FIG. 29.
Figure 31 is a configuration diagram of an imaging optical system according to the sixteenth embodiment of the present invention.
FIG. 32 is a curve showing the aberration characteristics of the imaging optical system shown in FIG. 31.
Figure 33 is a configuration diagram of an imaging optical system according to the 17th embodiment of the present invention.
FIG. 34 is a curve showing the aberration characteristics of the imaging optical system shown in FIG. 33.
Figure 35 is a configuration diagram of an imaging optical system according to the 18th embodiment of the present invention.
FIG. 36 is a curve showing the aberration characteristics of the imaging optical system shown in FIG. 35.
Figure 37 is a configuration diagram of an imaging optical system according to the 19th embodiment of the present invention.
FIG. 38 is a curve showing the aberration characteristics of the imaging optical system shown in FIG. 37.
Figure 39 is a configuration diagram of an imaging optical system according to the twentieth embodiment of the present invention.
FIG. 40 is a curve showing the aberration characteristics of the imaging optical system shown in FIG. 39.
Figure 41 is a configuration diagram of an imaging optical system according to the 21st embodiment of the present invention.
FIG. 42 is a curve showing the aberration characteristics of the imaging optical system shown in FIG. 41.
Figure 43 is a configuration diagram of an imaging optical system according to the 22nd embodiment of the present invention.
FIG. 44 is a curve showing the aberration characteristics of the imaging optical system shown in FIG. 43.
Figure 45 is a configuration diagram of an imaging optical system according to the 23rd embodiment of the present invention.
FIG. 46 is a curve showing the aberration characteristics of the imaging optical system shown in FIG. 45.
Figure 47 is a configuration diagram of an imaging optical system according to the twenty-fourth embodiment of the present invention.
FIG. 48 is a curve showing the aberration characteristics of the imaging optical system shown in FIG. 47.
Figure 49 is a configuration diagram of an imaging optical system according to the twenty-fifth embodiment of the present invention.
FIG. 50 is a curve showing the aberration characteristics of the imaging optical system shown in FIG. 49.
Figures 51 and 52 are schematic cross-sectional views showing a plurality of lenses, spacers, and lens barrels combined.
Figure 53 is an enlarged view of a portion of the rib of the seventh lens.
Figure 54 is a diagram for explaining lens parameters.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. However, the spirit of the present invention is not limited to the presented embodiments.

For example, a person skilled in the art who understands the spirit of the present invention will be able to easily suggest other embodiments included within the scope of the spirit of the present invention through addition, change, or deletion of components, but this is also within the spirit of the present invention. It will be said to be included within the scope of.

In the lens diagram below, the thickness, size, and shape of the lens are somewhat exaggerated for explanation purposes. In particular, the spherical or aspherical shape shown in the lens diagram is presented as an example and is not limited to this shape.

In addition, throughout the specification, the fact that a certain component is in contact with another component means not only the case where these components are 'directly contacted' but also the case where they are 'indirectly contacted' with the other component in between.

First, referring to FIG. 51, the imaging optical system 100 according to an embodiment of the present invention may include a plurality of lenses arranged along the optical axis. Additionally, it may further include a lens barrel 200 that accommodates a plurality of lenses. The plurality of lenses may be arranged to be spaced apart from each other by a preset distance along the optical axis.

The imaging optical system 100 according to an embodiment of the present invention includes 7 lenses. Each lens includes an optical section and ribs.

The optical unit may be a part where the optical performance of the lens is demonstrated. For example, light reflected from an object (or subject) may be refracted while passing through the optical unit.

The rib may be a component that secures the lens to another component, such as a lens barrel or another lens. The rib extends around the optical portion and is formed integrally with the optical portion.

The imaging optical system 100 described herein includes a self-aligned structure.

As an example, the imaging optical system 100 includes a structure in which optical axes of four lenses (1000, 2000, 3000, and 4000) are aligned by mutual coupling, as shown in FIG. 51.

Here, the first lens 1000 disposed closest to the object side is in contact with the lens barrel 200 and the optical axis is aligned, and the second lenses 2000 to fourth lenses 4000 are lenses disposed on the object side ( When combined with the first to third lenses, the optical axis is aligned. For example, the first lens 1000 and the second lens 2000, the second lens 2000 and the third lens 3000, and the third lens 3000 and the fourth lens 4000 can be combined with each other. there is. That is, the ribs of the first to fourth lenses 1000 to 4000 may be coupled to each other so that the optical axes of each lens are aligned.

As another example, as shown in FIG. 52, the imaging optical system 100 includes a structure in which optical axes of five lenses (1000, 2000, 3000, 4000, and 5000) are aligned by mutual coupling.

Here, the first lens 1000 disposed closest to the object side is in contact with the lens barrel 200 so that the optical axis is aligned, and the second lenses 2000 to 5000 are lenses disposed on the object side ( When combined with the first to fourth lenses, the optical axis is aligned. For example, the first lens 1000 and the second lens 2000, the second lens 2000 and the third lens 3000, the third lens 3000 and the fourth lens 4000, and the fourth lens ( 4000) and the fifth lens 5000 may be combined with each other. That is, the ribs of the first to fifth lenses 1000 to 5000 may be coupled to each other so that the optical axes of each lens are aligned.

The first lens 1000 refers to the lens closest to the object (or subject), and the seventh lens 7000 refers to the lens closest to the image sensor.

Additionally, in each lens, the first surface refers to the surface facing the object (or the object-side surface), and the second surface refers to the surface facing the image sensor (or the image side surface). In addition, in this specification, the values for the radius of curvature, thickness, distance, and effective aperture radius of the lens are all in mm, and the unit of angle is degree.

Meanwhile, effective aperture radius refers to the radius of one surface (object side surface and image side surface) of each lens through which light actually passes. In other words, the effective radius means the radius of the optical part of each lens. For example, the effective radius of the object-side surface of the first lens may mean the straight-line distance between the optical axis and the end at which light is incident on the object-side surface of the first lens.

In the description of the shape of each lens, the shape of one side being convex means that the paraxial region of the surface is convex, and the shape of one side being concave means that the paraxial region of the surface is concave. Therefore, even if one surface of the lens is described as having a convex shape, the edge portion of the lens may be concave. Likewise, even if one side of the lens is described as having a concave shape, the edge of the lens may be convex.

Paraxial region refers to a very narrow region including the optical axis.

An imaging optical system according to an embodiment of the present invention includes seven lenses.

For example, the imaging optical system according to an embodiment of the present invention includes a first lens 1000, a second lens 2000, a third lens 3000, a fourth lens 4000, It includes a fifth lens 5000, a sixth lens 6000, and a seventh lens 7000.

In addition, the imaging optical system according to the present invention may further include an image sensor for converting an image of an incident subject into an electrical signal and an infrared cut-off filter (hereinafter referred to as a filter) to block infrared rays. The filter is disposed between the image sensor and a lens (eg, a seventh lens) disposed closest to the image sensor.

Additionally, the imaging optical system may further include an aperture for controlling the amount of light. For example, the aperture may be disposed between the first lens 1000 and the second lens 2000, or between the second lens 2000 and the third lens 3000. By placing the aperture relatively close to the first lens 1000, the overall length (eg, TTL) of the imaging optical system can be reduced.

Spacers may be provided between adjacent lenses. At least a portion of the rib of each lens may be in contact with the spacer. Spacers can maintain the gap between lenses and block unnecessary light.

The spacer includes a first spacer (SP1), a second spacer (SP2), a third spacer (SP3), a fourth spacer (SP4), a fifth spacer (SP5), and a sixth spacer (SP5) arranged from the object side toward the image sensor. Includes SP6). In one embodiment, it may further include a seventh spacer (SP7).

The first spacer SP1 is disposed between the first lens 1000 and the second lens 2000, and 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, and 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 may also be disposed between the sixth lens 6000 and the seventh lens 7000. The thickness of the sixth spacer SP6 in the optical axis direction is thicker than the thickness of the seventh spacer SP7 in the optical axis direction.

The first lens may have positive or negative refractive power. Additionally, the first lens may have a meniscus shape convex toward the object. To elaborate, the first surface of the first lens may be convex, and the second surface of the first lens may be concave.

At least one of the first and second surfaces of the first lens may be aspherical. For example, both surfaces of the first lens may be aspherical.

The second lens may have positive or negative refractive power. Additionally, the second lens may have a meniscus shape convex toward the object. To elaborate, the first surface of the second lens may be convex, and the second surface of the second lens may be concave.

Alternatively, the second lens may have a shape in which both sides are convex. To elaborate, the first and second surfaces of the second lens may have a convex shape.

At least one of the first and second surfaces of the second lens may be aspherical. For example, both surfaces of the second lens may be aspherical.

The third lens has positive or negative refractive power. Additionally, the third lens may have a meniscus shape convex toward the object. To elaborate, the first surface of the third lens may be convex, and the second surface of the third lens may be concave.

Alternatively, the third lens may have a shape in which both sides are convex. To elaborate, the first and second surfaces of the third lens may have a convex shape.

Alternatively, the third lens may have a meniscus shape convex toward the image side. To elaborate, the first surface of the third lens may be concave, and the second surface of the third lens may be convex.

At least one of the first and second surfaces of the third lens may be aspherical. For example, both surfaces of the third lens may be aspherical.

The fourth lens has positive or negative refractive power. In addition, the fourth lens may have a meniscus shape convex toward the object. To elaborate, the first surface of the fourth lens may be convex, and the second surface of the fourth lens may be concave.

Alternatively, the fourth lens may have a shape in which both sides are convex. To elaborate, the first and second surfaces of the fourth lens may have a convex shape.

Alternatively, the fourth lens may have a meniscus shape convex toward the image side. To elaborate, the first surface of the fourth lens may be concave, and the second surface of the fourth lens may be convex.

At least one of the first and second surfaces of the fourth lens may be aspherical. For example, both surfaces of the fourth lens may be aspherical.

The fifth lens has positive or negative refractive power. In addition, the fifth lens may have a meniscus shape convex toward the object. To elaborate, the first surface of the fifth lens may be convex, and the second surface of the fifth lens may be concave.

Alternatively, the fifth lens may have a meniscus shape convex toward the image side. To elaborate, the first surface of the fifth lens may be concave, and the second surface of the fifth lens may be convex.

At least one of the first and second surfaces of the fifth lens may be aspherical. For example, both surfaces of the fifth lens may be aspherical.

The sixth lens has positive or negative refractive power. Additionally, the sixth lens may have a meniscus shape convex toward the object. To elaborate, the first surface of the sixth lens may be convex, and the second surface of the sixth lens may be concave.

Alternatively, the sixth lens may have a shape in which both sides are convex. To elaborate, the first and second surfaces of the sixth lens may have a convex shape.

Alternatively, the sixth lens may have a meniscus shape convex toward the image side. To elaborate, the first surface of the sixth lens may be concave, and the second surface of the sixth lens may be convex.

Alternatively, the sixth lens may have a concave shape on both sides. To elaborate, the first and second surfaces of the sixth lens may have a concave shape.

At least one of the first and second surfaces of the sixth lens may be aspherical. For example, both surfaces of the sixth lens may be aspherical.

The seventh lens has positive or negative refractive power. Additionally, the seventh lens may have a meniscus shape convex toward the object. To elaborate, the first surface of the seventh lens may be convex, and the second surface of the seventh lens may be concave.

Alternatively, the seventh lens may have a concave shape on both sides. To elaborate, the first and second surfaces of the seventh lens may have a concave shape.

At least one of the first and second surfaces of the seventh lens may be aspherical. For example, both surfaces of the seventh lens may be aspherical.

Additionally, the seventh lens has at least one inflection point formed on at least one of the first and second surfaces. For example, the first surface of the seventh lens may be convex in the paraxial region and become concave toward the edge. The second surface of the seventh lens may be concave in the paraxial region and convex toward the edge.

Meanwhile, light reflected from an object (or subject) is refracted by the first to seventh lenses, and at this time, unintended light reflection may occur. Unintentional reflection of light is light that is not related to image formation and causes flare in the captured image.

The imaging optical system according to an embodiment of the present invention can suppress the occurrence of flare phenomenon even if unintentional reflection of light occurs.

To this end, as shown in FIG. 53, the rib of the seventh lens 7000 disposed closest to the image sensor may include a surface treatment area (EA). The surface treatment area EA may be a surface formed to be rougher than other parts of the rib of the seventh lens 7000. The surface treatment area (EA) may be formed by chemical etching or physical grinding. This surface treatment area (EA) may scatter the reflected light.

Therefore, even if unintentional reflection of light occurs, the reflected light can be prevented from converging at one point, and thus the occurrence of the flare phenomenon can be suppressed.

The surface treatment area (EA) may be formed entirely from the edge of the optical unit to the end of the rib. However, as shown in FIG. 53, the untreated area NEA including the step portions E11, E21, and E22 may not be surface treated or may have a different roughness than the surface treated area EA. The first unprocessed area formed on the first surface of the seventh lens 7000 and the second unprocessed area formed on the second surface of the seventh lens 7000 include an overlapping area when viewed in the optical axis direction. do.

The length (G1) of the first unprocessed area formed on the first surface of the seventh lens 7000 may be different from the length (G2) of the second unprocessed area formed on the second surface of the seventh lens 7000. there is. As an example, G1 may be larger than G2.

G1 has a length including the first step portion (E11), the second step portion (E21), and the third step portion (E22), and G2 includes the second step portion (E21) and the third step portion (E22). It can have an inclusive length. The distance G4 from the end of the rib to the second step E21 may be smaller than the distance G3 from the end of the rib to the first step E11. Similarly, the distance G5 from the end of the rib to the third step E22 may be smaller than the distance G3 from the end of the rib to the first step E11.

The formation positions of the non-processed area (NEA) and the step portions (E11, E21, and E22) formed as described above may be advantageous for measuring the concentricity of the lens.

All lenses constituting the imaging optical system according to an embodiment of the present invention may be made of plastic material.

In addition, each of the plurality of lenses may have at least one aspherical surface.

That is, at least one of the first and second surfaces of the first to seventh lenses may be aspherical. Here, the aspherical surfaces of the first to seventh lenses are expressed by Equation 1.

In Equation 1, c is the curvature of the lens (reciprocal of the radius of curvature), K is the Conic constant, and Y represents the distance from any point on the aspherical surface of the lens to the optical axis. In addition, constants A to H refer to aspherical constants. And Z (or SAG) represents the distance in the optical axis direction from any point on the aspherical surface of the lens to the vertex of the aspherical surface.

An imaging optical system according to an embodiment of the present invention may satisfy at least one of the conditional expressions below.

[Conditional Expression 1] 0.1 < L1w/L7w < 0.4

[Conditional Expression 2] 0.5 < S6d/f < 1.4

[Conditional expression 3] 0.4 < L1TR/L7TR < 1.9

[Conditional Expression 4] 0.5 < L1234TRavg/L7TR < 0.9

[Conditional Expression 5] 0.5 < L12345TRavg/L7TR < 0.9

L1w is the weight of the first lens, and L7w is the weight of the seventh lens. The unit of weight is mg.

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

L1TR is the maximum diameter of the first lens, and L7TR is the maximum diameter of the seventh lens. The maximum diameter refers to the diameter including the ribs of the lens.

L1234TRavg is the average value of the maximum diameters of the first to fourth lenses, and L12345TRavg is the average value of the maximum diameters of the first to fifth lenses.

Conditional Expression 1 is the weight ratio of the first lens and the seventh lens. If Conditional Expression 1 is satisfied, optical axis alignment can be facilitated through contact between each lens and contact between the lens and the lens barrel.

Conditional Expression 2 is the ratio of the sixth spacer disposed between the sixth and seventh lenses and the total focal length. If Conditional Expression 2 is satisfied, the flare phenomenon caused by unintentional reflection of light can be improved.

Conditional expression 3 is the ratio of the maximum diameter of the first lens and the maximum diameter of the seventh lens. When conditional expression 3 is satisfied, optical axis alignment can be facilitated through contact between each lens and contact between the lens and the lens barrel.

Conditional expression 4 is the ratio of the average value of the maximum diameters of the first to fourth lenses and the maximum diameter of the seventh lens. When conditional expression 4 is satisfied, aberration correction is easy and resolution can be improved.

Conditional Expression 5 is the ratio of the average value of the maximum diameters of the first to fifth lenses and the maximum diameter of the seventh lens. When Conditional Expression 5 is satisfied, aberration correction is easy and resolution can be improved.

Meanwhile, the imaging optical system according to an embodiment of the present invention may further satisfy at least one of the conditional expressions below.

[Conditional Expression 6] 0.1 < L1w/L7w < 0.3

[Conditional Expression 7] 0.5 < S6d/f < 1.2

[Conditional Expression 8] 0.4 < L1TR/L7TR < 0.7

[Conditional Expression 9] 0.5 < L1234TRavg/L7TR < 0.75

[Conditional Expression 10] 0.5 < L12345TRavg/L7TR < 0.76

Meanwhile, the imaging optical system according to an embodiment of the present invention may further satisfy at least one of the conditional expressions below.

[Conditional Expression 11] 0.01 < R1/R4 < 1.3

[Conditional Expression 12] 0.1 < R1/R5 < 0.7

[Conditional Expression 13] 0.05 < R1/R6 < 0.9

[Conditional Expression 14] 0.2 < R1/R11 < 1.2

[Conditional Expression 15] 0.8 < R1/R14 < 1.2

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

[Conditional Expression 17] 0.4 < D13/D57 < 1.2

[Conditional expression 18] 0.1 < (1/f1+1/f2+1/f3+1/f4+1/f5+1/f6+1/f7)*f < 0.8

[Conditional expression 19] 0.1 < (1/f1+1/f2+1/f3+1/f4+1/f5+1/f6+1/f7)*TTL < 1.0

[Conditional Expression 20] 0.2 < TD1/D67 < 0.8

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

[Conditional expression 22] SD12 < SD34

[Conditional Expression 23] SD56 < SD67

[Conditional expression 24] SD56 < SD34

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

[Conditional Expression 26] 0.2 < ∑SD/∑TD < 0.7

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

[Conditional Expression 28] 0.4 < ∑TD/TTL < 0.7

[Conditional Expression 29] 0.7 < SL/TTL < 1.0

[Conditional Expression 30] 0.81 < f12/f123 < 0.96

[Conditional Expression 31] 0.6 < f12/f1234 < 0.84

[Conditional Expression 32] TTL ≤ 6.00

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 of the second lens, R5 is the radius of curvature of the object-side surface of the third lens, and R6 is the radius of curvature of the image side of the third lens. is the radius of curvature, 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.

D13 is the distance on the optical axis from the object side surface of the first lens to the image side surface of the third lens, and D57 is the distance on the optical axis from the object side surface of the fourth lens to the image side surface of the seventh lens.

f1 is the focal length of the first lens, f2 is the focal length of the second lens, f3 is the focal length of the third lens, f4 is the focal length of the fourth lens, f5 is the focal length of the fifth lens, f6 is the focal length of the sixth lens, and f7 is the focal length of the seventh lens.

TD1 is the thickness on the optical axis of the first lens, and D67 is the distance on the optical axis from the object side surface of the sixth lens to the image side surface of the seventh lens.

SD12 is the distance on the optical axis from the image side of the first lens to the object side of the second lens, SD34 is the distance on the optical axis from the image side of the third lens to the object side of the fourth lens, and SD56 is the distance on the optical axis from the image side of the third lens to the object side of the fourth lens. SD67 is the distance on the optical axis from the image side of the lens to the object side of the sixth lens, and SD67 is the distance on the optical axis from the image side of the sixth lens to the object side of the seventh lens.

TTL is the distance on the optical axis from the object side of the first lens to the imaging surface of the image sensor, and Img HT is 1/2 of the diagonal length of the imaging surface of the image sensor.

∑SD is the sum of the air gaps of a plurality of lenses, and ∑TD is the sum of the thicknesses of each lens on the optical axis. Air gap refers to the distance on the optical axis between adjacent lenses.

min(f1:f3) is the minimum value among the absolute focal length values of the first to third lenses, and max(f4:f7) is the maximum value among the absolute focal length values of the fourth to seventh lenses.

SL is the distance on the optical axis from the aperture to the imaging surface of the image sensor.

f12 is the composite focal length of the first and second lenses, f123 is the composite focal length of the first to third lenses, and f1234 is the composite focal length of the first to fourth lenses.

If Condition Equation 11 is satisfied, the correction effect for spherical aberration and astigmatism can be improved, and thus the resolution can be improved.

If condition equation 12 is satisfied, the correction effect for spherical aberration and astigmatism can be improved, and thus the resolution can be improved.

If Conditional Expression 13 is satisfied, the correction effect for spherical aberration and astigmatism can be improved, and thus the resolution can be improved.

If Conditional Expression 14 is satisfied, the correction effect for spherical aberration can be improved and the flare phenomenon can be prevented. Accordingly, the resolution can be improved.

If Conditional Expression 15 is satisfied, the correction effect for spherical aberration and the field curvature phenomenon can be improved. Accordingly, the resolution can be improved.

If Conditional Expression 16 is satisfied, the correction effect of spherical aberration and field curvature can be improved, and the flare phenomenon can be prevented. Accordingly, the resolution can be improved.

If condition Equation 17 is satisfied, a slim imaging optical system can be implemented.

If conditional equation 18 is satisfied, mass productivity can be improved by improving the sensitivity of each lens.

If condition equation 20 is satisfied, a slim imaging optical system can be implemented.

If condition 22 is satisfied, the chromatic aberration correction effect can be improved.

If condition equation 25 is satisfied, a slim imaging optical system can be implemented.

If conditional equation 26 is satisfied, a slim imaging optical system can be implemented while improving the mass production of each lens.

If condition equation 27 is satisfied, a slim imaging optical system can be implemented.

If conditional equation 28 is satisfied, a slim imaging optical system can be implemented while improving the mass production of each lens.

If condition equation 29 is satisfied, a slim imaging optical system can be implemented.

If condition equation 30 is satisfied, a slim imaging optical system can be implemented.

If condition equation 31 is satisfied, a slim imaging optical system can be implemented.

An imaging optical system according to a first embodiment of the present invention will be described with reference to FIGS. 1 and 2.

The imaging optical system according to the first embodiment of the present invention includes a first lens 110, a second lens 120, a third lens 130, a fourth lens 140, a fifth lens 150, and a sixth lens. It may include an optical system including 160 and a seventh lens 170, and may further include an infrared cut-off filter 180, an image sensor 190, and an aperture (ST).

The lens characteristics of each lens (Radius of curvature, thickness of the lens or distance between lenses, index of refraction, Abbe number, effective aperture radius) Same as Table 1.

side number note radius of curvature thickness or distance refractive index Abesu effective radius S1 first lens 1.32177197 0.4999327 1.546 56.114 0.92 S2 4.3592239 0.02 0.88 S3 second lens 3.55744846 0.15 1.669 20.353 0.85 S4 2.1807528 0.1605408 0.78 S5 third lens 3.19075254 0.2250968 1.546 56.114 0.78 S6 5.25704546 0.2445247 0.80 S7 4th lens -19.346514 0.2574985 1.546 56.114 0.85 S8 -13.901939 0.2232606 1.00 S9 5th lens -3.9144784 0.23 1.658 21.494 1.06 S10 -6.9464618 0.1659446 1.35 S11 6th lens 3.13913191 0.3975189 1.658 21.494 1.58 S12 3.32803006 0.2000373 1.82 S13 7th lens 1.6130931 0.4732949 1.537 55.711 2.42 S14 1.25423638 0.1960642 2.50 S15 filter Infinity 0.11 1.519 64.197 2.87 S16 Infinity 0.6342859 2.90 S17 Imaging surface Infinity 0.012 3.26

In a first embodiment of the present invention, the first lens 110 has a positive refractive power, the first surface of the first lens 110 is convex in the paraxial region, and the second surface of the first lens 110 is paraxial. It has a concave shape in the area.

The second lens 120 has a negative refractive power, the first surface of the second lens 120 is convex in the paraxial region, and the second surface of the second lens 120 is concave in the paraxial region.

The third lens 130 has a positive refractive power, the first surface of the third lens 130 is convex in the paraxial region, and the second surface of the third lens 130 is concave in the paraxial region. The aperture ST is disposed between the second lens 120 and the third lens 130.

The fourth lens 140 has a positive refractive power, the first surface of the fourth lens 140 is concave in the paraxial region, and the second surface of the fourth lens 140 is convex in the paraxial region.

The fifth lens 150 has a negative refractive power, the first surface of the fifth lens 150 is concave in the paraxial region, and the second surface of the fifth lens 150 is convex in the paraxial region.

The sixth lens 160 has a positive refractive power, the first surface of the sixth lens 160 is convex in the paraxial region, and the second surface of the sixth lens 160 is concave in the paraxial region.

The seventh lens 170 has a negative refractive power, the first surface of the seventh lens 170 is convex in the paraxial region, and the second surface of the seventh lens 170 is concave in the paraxial region.

Additionally, two inflection points are formed on the first surface of the seventh lens 170. For example, the first surface of the seventh lens 170 may be convex in the paraxial region, concave outside the paraxial region, and become convex toward the edge.

Additionally, one inflection point is formed on the second surface of the seventh lens 170. For example, the second surface of the seventh lens 170 may be concave in the paraxial region and become convex toward the edge.

Meanwhile, each surface of the first to seventh lenses 110 to 170 has an aspherical value as shown in Table 2. For example, both the object-side surface and the image-side surface of the first to seventh lenses 110 to 170 are aspherical surfaces.

K A B C D E F G H S1 -0.04225 -0.01109 0.065395 -0.35585 0.837547 -1.16959 0.769682 -0.2201 0 S2 -13.0186 -0.12757 0.162643 0.046709 -0.90497 1.810264 -1.59507 0.519188 0 S3 -3.30037 -0.14907 0.316326 -0.29274 0.262465 -0.26122 0.540505 -0.3951 0 S4 0.183035 -0.05422 0.124861 -0.09712 0.697622 -2.45971 4.285749 -2.46262 0 S5 3.251627 -0.10203 0.116345 -0.92073 3.503033 -7.16227 8.464664 -3.75066 0 S6 0.084295 -0.07246 -0.04296 0.296282 -1.61655 5.020739 -6.77596 3.949973 0 S7 5.52E-08 -0.16181 -0.04673 -0.2324 0.320309 0.2284 -0.38514 0.118117 0 S8 -8E-08 -0.13136 0.049038 -0.53293 0.855096 -0.48645 0.112965 -0.00835 0 S9 -0.32032 -0.12533 0.387571 -1.14051 1.245353 -0.47325 -0.08635 0.062731 0 S10 12.05073 -0.18017 0.24682 -0.44573 0.48776 -0.26026 0.064589 -0.00603 0 S11 -50 0.143409 -0.60684 0.805038 -0.67425 0.326394 -0.08106 0.00802 0 S12 -34.5841 0.052766 -0.28218 0.313255 -0.20774 0.080602 -0.01662 0.001402 0 S13 -0.9471 -0.51052 0.211099 -0.00941 -0.02225 0.008874 -0.00159 0.000143 -5.2E-06 S14 -1.00164 -0.4435 0.28223 -0.14378 0.053977 -0.01358 0.002101 -0.00018 6.33E-06

Additionally, the imaging optical system configured in this way may have the aberration characteristics shown in FIG. 2.

An imaging optical system according to a second embodiment of the present invention will be described with reference to FIGS. 3 and 4.

The imaging optical system according to the second embodiment of the present invention includes a first lens 210, a second lens 220, a third lens 230, a fourth lens 240, a fifth lens 250, and a sixth lens. It includes an optical system including 260 and a seventh lens 270, and may further include an infrared cut-off filter 280, an image sensor 290, and an aperture (ST).

The lens characteristics of each lens (Radius of curvature, thickness of the lens or distance between lenses, index of refraction, Abbe number, effective aperture radius) Same as Table 3.

side number note radius of curvature thickness or distance refractive index Abesu effective radius S1 first lens 2.0856092 0.9292118 1.546 56.114 1.59 S2 8.93043513 0.1200399 1.53 S3 second lens 5.86244103 0.23 1.669 20.353 1.43 S4 3.38051351 0.3866461 1.26 S5 third lens 18.3857198 0.5076267 1.546 56.114 1.35 S6 -65.41545 0.1166172 1.43 S7 4th lens 7.98746366 0.26 1.669 20.353 1.45 S8 6.4766936 0.2853054 1.61 S9 5th lens 58.6668676 0.3539979 1.644 23.516 1.74 S10 7.23744347 0.2316773 2.00 S11 6th lens 3.60524352 0.7682194 1.546 56.114 2.24 S12 -2.4011013 0.5228213 2.49 S13 7th lens -2.5241007 0.38 1.546 56.114 3.26 S14 3.01958733 0.107837 3.38 S15 filter Infinity 0.11 1.519 64.197 3.66 S16 Infinity 0.678 3.69 S17 Imaging surface Infinity 0.012 4.00

In a second embodiment of the present invention, the first lens 210 has positive refractive power, the first surface of the first lens 210 is convex in the paraxial region, and the second surface of the first lens 210 is paraxial. It has a concave shape in the area.

The second lens 220 has a negative refractive power, the first surface of the second lens 220 is convex in the paraxial region, and the second surface of the second lens 220 is concave in the paraxial region. The aperture ST is disposed between the first lens 210 and the second lens 220.

The third lens 230 has positive refractive power, and the first and second surfaces of the third lens 230 have a convex shape in the paraxial region.

The fourth lens 240 has a negative refractive power, the first surface of the fourth lens 240 is convex in the paraxial region, and the second surface of the fourth lens 240 is concave in the paraxial region.

The fifth lens 250 has a negative refractive power, the first surface of the fifth lens 250 is convex in the paraxial region, and the second surface of the fifth lens 250 is concave in the paraxial region.

The sixth lens 260 has positive refractive power, and the first and second surfaces of the sixth lens 260 have a convex shape in the paraxial region.

The seventh lens 270 has negative refractive power, and the first and second surfaces of the seventh lens 270 are concave in the paraxial region.

Additionally, one inflection point is formed on the first surface of the seventh lens 270. For example, the first surface of the seventh lens 270 may be concave in the paraxial region and become convex toward the edge.

Additionally, one inflection point is formed on the second surface of the seventh lens 270. For example, the second surface of the seventh lens 270 may be concave in the paraxial region and become convex toward the edge.

Meanwhile, each surface of the first to seventh lenses 210 to 270 has an aspheric value as shown in Table 4.

K A B C D E F G H I S1 -1.08941 0.013187 0.009962 -0.01583 0.018971 -0.01385 0.006018 -0.00143 0.000134 0 S2 12.57642 -0.04786 0.041598 -0.02674 0.011876 -0.00481 0.001502 -0.00027 1.69E-05 0 S3 0 0 0 0 0 0 0 0 0 0 S4 -1.83147 -0.06555 0.065057 -0.0107 -0.02653 0.029888 -0.01246 0.001484 0.000416 0 S5 0 -0.02189 -0.00092 -0.021 0.023433 -0.0118 -0.00341 0.005424 -0.00134 0 S6 -95 -0.0632 -0.00174 0.021978 -0.05295 0.060706 -0.04155 0.015887 -0.00255 0 S7 0 -0.1339 0.057694 -0.15773 0.257112 -0.23831 0.127642 -0.03688 0.004447 0 S8 0 -0.1017 0.077852 -0.15614 0.199503 -0.15311 0.069086 -0.01708 0.001797 0 S9 0 -0.12052 0.152814 -0.15655 0.114747 -0.05967 0.019523 -0.00362 0.000296 0 S10 3.458235 -0.18471 0.140789 -0.10891 0.070568 -0.03223 0.008954 -0.00133 8.01E-05 0 S11 -19.5338 -0.01378 -0.01807 0.002094 0.001582 -0.0008 0.00013 -2.5E-06 -6.7E-07 0 S12 -0.75818 0.09278 -0.06699 0.021292 -0.0052 0.001388 -0.00027 2.7E-05 -1.1E-06 0 S13 -14.2476 -0.09472 -0.00377 0.015632 -0.00476 0.000702 -5.8E-05 2.53E-06 -4.7E-08 0 S14 -0.57988 -0.09619 0.026231 -0.00426 0.000309 8.85E-06 -3.9E-06 3.28E-07 -1.2E-08 1.61E-10

Additionally, the imaging optical system configured in this way may have the aberration characteristics shown in FIG. 4.

An imaging optical system according to a third embodiment of the present invention will be described with reference to FIGS. 5 and 6.

The imaging optical system according to the third embodiment of the present invention includes a first lens 310, a second lens 320, a third lens 330, a fourth lens 340, a fifth lens 350, and a sixth lens. It includes an optical system including 360 and a seventh lens 370, and may further include an infrared cut-off filter 380, an image sensor 390, and an aperture (ST).

The lens characteristics of each lens (Radius of curvature, thickness of the lens or distance between lenses, index of refraction, Abbe number, effective aperture radius) Same as Table 5.

side number note radius of curvature thickness or distance refractive index Abesu effective radius S0 Infinity -0.06 1.500 S1 first lens 2.097707 0.484782 1.546 56.114 1.410 S2 3.212251 0.123479 1.350 S3(STOP) second lens 2.895677 0.623098 1.546 56.114 1.310 S4 -16.0261 0.02 1.271 S5 third lens 4.647233 0.2 1.679 19.236 1.157 S6 2.307581 0.603147 1.095 S7 4th lens -1200 0.298374 1.679 19.236 1.270 S8 -1200 0.210734 1.456 S9 5th lens 3.365553 0.307211 1.546 56.114 1.712 S10 3.293292 0.236544 2.000 S11 6th lens 3.258679 0.377621 1.679 19.236 2.150 S12 2.681749 0.140868 2.500 S13 7th lens 1.558894 0.541106 1.537 53.955 2.871 S14 1.37E+00 0.243037 3.050 S15 filter Infinity 0.11 1.5187 64.1664 3.347466 S16 Infinity 0.667344 3.379185 S17(image) Imaging surface Infinity 0.002604 3.708257

In a third embodiment of the present invention, the first lens 310 has positive refractive power, the first surface of the first lens 310 is convex in the paraxial region, and the second surface of the first lens 310 is paraxial. It has a concave shape in the area.

The second lens 320 has positive refractive power, and the first and second surfaces of the second lens 320 have a convex shape in the paraxial region. The aperture ST is disposed between the first lens 310 and the second lens 320.

The third lens 330 has a negative refractive power, the first surface of the third lens 330 is convex in the paraxial region, and the second surface of the third lens 330 is concave in the paraxial region.

The fourth lens 340 has a positive refractive power, the first surface of the fourth lens 340 is concave in the paraxial region, and the second surface of the fourth lens 340 is convex in the paraxial region.

The fifth lens 350 has a positive refractive power, the first surface of the fifth lens 350 is convex in the paraxial region, and the second surface of the fifth lens 350 is concave in the paraxial region.

The sixth lens 360 has a negative refractive power, the first surface of the sixth lens 360 is convex in the paraxial region, and the second surface of the sixth lens 360 is concave in the paraxial region.

The seventh lens 370 has a positive refractive power, the first surface of the seventh lens 370 is convex in the paraxial region, and the second surface of the seventh lens 370 is concave in the paraxial region.

Additionally, one inflection point is formed on the first surface of the seventh lens 370. For example, the first surface of the seventh lens 370 may be convex in the paraxial region and become concave toward the edge.

Additionally, one inflection point is formed on the second surface of the seventh lens 370. For example, the second surface of the seventh lens 370 may be concave in the paraxial region and become convex toward the edge.

Meanwhile, each surface of the first to seventh lenses 310 to 370 has an aspheric value as shown in Table 6. For example, both the object-side surface and the image-side surface of the first to seventh lenses 310 to 370 are aspherical surfaces.

K A B C D E F G H J S1 -7.583 0.0707 -0.0815 0.0542 -0.0479 0.0209 -0.0011 -0.0013 0.0002 0 S2 -20.327 -0.0052 -0.1116 0.0603 0.0221 -0.0313 0.0098 -0.0002 -0.0003 0 S3 -0.2671 -0.0365 -0.0311 -0.0159 0.08 -0.0164 -0.04 0.0265 -0.0051 0 S4 0 0.0221 -0.096 0.0722 0.0909 -0.2138 0.1659 -0.0596 0.0083 0 S5 -4.5253 -0.0697 0.0432 -0.146 0.4306 -0.6073 0.4481 -0.1664 0.0247 0 S6 0.5431 -0.098 0.1133 -0.1737 0.2753 -0.3038 0.2109 -0.0818 0.0149 0 S7 0 -0.0194 -0.0742 0.1045 -0.1099 0.1045 -0.0888 0.0459 -0.0098 0 S8 0 -0.0129 -0.0975 0.0464 0.0472 -0.0702 0.033 -0.0054 0 0 S9 -43.017 0.1335 -0.1604 0.0703 -0.0277 0.0168 -0.01 0.003 -0.0003 0 S10 -5.2037 -0.0285 0.0684 -0.1295 0.1018 -0.0463 0.0125 -0.0018 0.0001 0 S11 -1.699 0.0274 -0.1873 0.1887 -0.126 0.0512 -0.0118 0.0014 -7E-05 0 S12 -0.0013 -0.0788 -0.0314 0.0355 -0.0206 0.0072 -0.0014 0.0001 -6E-06 0 S13 -0.8015 -0.4138 0.198 -0.0635 0.0157 -0.003 0.0004 -4E-05 2E-06 -5E-08 S14 -1.2781 -0.3 0.1664 -0.0696 0.021 -0.0044 0.0006 -5E-05 3E-06 -5E-08

Additionally, the imaging optical system configured in this way may have the aberration characteristics shown in FIG. 6.

An imaging optical system according to a fourth embodiment of the present invention will be described with reference to FIGS. 7 and 8.

The imaging optical system according to the fourth embodiment of the present invention includes a first lens 410, a second lens 420, a third lens 430, a fourth lens 440, a fifth lens 450, and a sixth lens. It includes an optical system including 460 and a seventh lens 470, and may further include an infrared cut-off filter 480, an image sensor 490, and an aperture (ST).

The lens characteristics of each lens (Radius of curvature, thickness of the lens or distance between lenses, index of refraction, Abbe number, effective aperture radius) The same as Table 7.

side number note radius of curvature thickness or distance refractive index Abesu effective radius S0 Infinity -0.06 1.490 S1 first lens 2.102219 0.483493 1.546 56.114 1.408 S2 3.356331 0.135746 1.350 S3 second lens 3.090692 0.619827 1.546 56.114 1.308 S4 -13.9876 0.02 1.271 S5 third lens 4.85529 0.2 1.679 19.236 1.157 S6 2.36693 0.559926 1.095 S7 4th lens -2272.13 0.301198 1.679 19.236 1.270 S8 -7278.43 0.184785 1.442 S9 5th lens 3.354564 0.294607 1.546 56.114 1.646 S10 3.520124 0.26038 1.947 S11 6th lens 3.472312 0.393208 1.679 19.236 2.150 S12 2.735386 0.154893 2.500 S13 7th lens 1.556951 0.551842 1.537 53.955 2.749 S14 1.37E+00 0.250094 2.950 S15 filter Infinity 0.11 1.5187 64.1664 3.293215 S16 Infinity 0.664551 3.328465 S17 Imaging surface Infinity 0.005449 3.698823

In a fourth embodiment of the present invention, the first lens 410 has positive refractive power, the first surface of the first lens 410 is convex in the paraxial region, and the second surface of the first lens 410 is paraxial. It has a concave shape in the area.

The second lens 420 has positive refractive power, and the first and second surfaces of the second lens 420 have a convex shape. The aperture ST is disposed between the first lens 410 and the second lens 420.

The third lens 430 has a negative refractive power, the first surface of the third lens 430 is convex in the paraxial region, and the second surface of the third lens 430 is concave in the paraxial region.

The fourth lens 440 has a negative refractive power, the first surface of the fourth lens 440 is concave in the paraxial region, and the second surface of the fourth lens 440 is convex in the paraxial region.

The fifth lens 450 has a positive refractive power, the first surface of the fifth lens 450 is convex in the paraxial region, and the second surface of the fifth lens 450 is concave in the paraxial region.

The sixth lens 460 has a negative refractive power, the first surface of the sixth lens 460 is convex in the paraxial region, and the second surface of the sixth lens 460 is concave in the paraxial region.

The seventh lens 470 has a positive refractive power, the first surface of the seventh lens 470 is convex in the paraxial region, and the second surface of the seventh lens 470 is concave in the paraxial region.

Additionally, two inflection points are formed on the first surface of the seventh lens 470. For example, the first surface of the seventh lens 470 may be convex in the paraxial region, concave outside the paraxial region, and convex toward the edge.

Additionally, one inflection point is formed on the second surface of the seventh lens 470. For example, the second surface of the seventh lens 470 may be concave in the paraxial region and become convex toward the edge.

Meanwhile, each surface of the first to seventh lenses 410 to 470 has an aspheric value as shown in Table 8. For example, both the object-side surface and the image-side surface of the first to seventh lenses 410 to 470 are aspherical surfaces.

K A B C D E F G H J S1 -7.5279 0.0685 -0.0723 0.0313 -0.0131 -0.0097 0.0144 -0.0054 0.0007 0 S2 -19.893 -0.0114 -0.0921 0.0405 0.0318 -0.0345 0.0116 -0.001 -0.0002 0 S3 -0.0142 -0.0359 -0.0288 -0.0087 0.0581 0.0053 -0.0505 0.0291 -0.0054 0 S4 0 0.0225 -0.1301 0.1638 -0.0413 -0.1012 0.1103 -0.0452 0.0067 0 S5 -6.2325 -0.061 -0.0037 -0.0472 0.3094 -0.5229 0.4199 -0.1649 0.0257 0 S6 0.4782 -0.092 0.0962 -0.1588 0.2881 -0.3518 0.2616 -0.1062 0.0192 0 S7 0 -0.0151 -0.0532 0.0425 0.0094 -0.0356 0.0085 0.009 -0.0039 0 S8 0 -0.0101 -0.0934 0.0497 0.0399 -0.0661 0.0321 -0.0053 0 0 S9 -49.08 0.1451 -0.2207 0.1683 -0.1105 0.058 -0.0226 0.0051 -0.0005 0 S10 -5.4303 -0.0164 0.0172 -0.0595 0.0534 -0.0275 0.0084 -0.0014 1E-04 0 S11 -1.136 0.0251 -0.1801 0.1935 -0.1377 0.0586 -0.014 0.0017 -9E-05 0 S12 0.0272 -0.1034 0.0166 3E-05 -0.0063 0.0037 -0.0009 0.0001 -5E-06 0 S13 -0.8 -0.4195 0.2062 -0.0728 0.0211 -0.0048 0.0007 -8E-05 4E-06 -1E-07 S14 -1.3207 -0.2931 0.1671 -0.0741 0.0239 -0.0053 0.0008 -7E-05 4E-06 -8E-08

Additionally, the imaging optical system configured in this way may have the aberration characteristics shown in FIG. 8.

An imaging optical system according to a fifth embodiment of the present invention will be described with reference to FIGS. 9 and 10.

The imaging optical system according to the fifth embodiment of the present invention includes a first lens 510, a second lens 520, a third lens 530, a fourth lens 540, a fifth lens 550, and a sixth lens. It may include an optical system including 560 and a seventh lens 570, and may further include an infrared cut-off filter 580, an image sensor 590, and an aperture (ST).

The lens characteristics of each lens (Radius of curvature, thickness of the lens or distance between lenses, index of refraction, Abbe number, effective aperture radius) Same as Table 9.

side number note radius of curvature thickness or distance refractive index Abesu effective radius S0 Infinity -0.05569 1.383 S1 first lens 1.951165 0.448752 1.546 56.114 1.307 S2 3.115162 0.125992 1.253 S3 second lens 2.868611 0.575289 1.546 56.114 1.214 S4 -12.9825 0.018563 1.180 S5 third lens 4.506414 0.185629 1.679 19.236 1.074 S6 2.196855 0.519693 1.016 S7 4th lens -2108.87 0.279556 1.679 19.236 1.179 S8 -6755.44 0.171507 1.338 S9 5th lens 3.113522 0.273438 1.546 56.114 1.528 S10 3.267187 0.241671 1.808 S11 6th lens 3.22281 0.364954 1.679 19.236 1.996 S12 2.538835 0.143764 2.320 S13 7th lens 1.445077 0.51219 1.537 53.955 2.500 S14 1.27E+00 0.250094 2.738 S15 filter Infinity 0.11 1.5187 64.1664 2.939872 S16 Infinity 0.592403 2.970893 S17 Imaging surface Infinity 0.005449 3.250775

In a fifth embodiment of the present invention, the first lens 510 has positive refractive power, the first surface of the first lens 510 is convex in the paraxial region, and the second surface of the first lens 510 is paraxial. It has a concave shape in the area.

The second lens 520 has positive refractive power, and the first and second surfaces of the second lens 520 have a convex shape. The aperture ST is disposed between the first lens 510 and the second lens 520.

The third lens 530 has a negative refractive power, the first surface of the third lens 530 is convex in the paraxial region, and the second surface of the third lens 530 is concave in the paraxial region.

The fourth lens 540 has a negative refractive power, the first surface of the fourth lens 540 is concave in the paraxial region, and the second surface of the fourth lens 540 is convex in the paraxial region.

The fifth lens 550 has a positive refractive power, the first surface of the fifth lens 550 is convex in the paraxial region, and the second surface of the fifth lens 550 is concave in the paraxial region.

The sixth lens 560 has a negative refractive power, the first surface of the sixth lens 560 is convex in the paraxial region, and the second surface of the sixth lens 560 is concave in the paraxial region.

The seventh lens 570 has a positive refractive power, the first surface of the seventh lens 570 is convex in the paraxial region, and the second surface of the seventh lens 570 is concave in the paraxial region.

Additionally, two inflection points are formed on the first surface of the seventh lens 570. For example, the first surface of the seventh lens 570 may be convex in the paraxial region, concave outside the paraxial region, and convex toward the edge.

Additionally, one inflection point is formed on the second surface of the seventh lens 570. For example, the second surface of the seventh lens 570 may be concave in the paraxial region and become convex toward the edge.

Meanwhile, each surface of the first to seventh lenses 510 to 570 has an aspheric value as shown in Table 10. For example, both the object-side surface and the image-side surface of the first to seventh lenses 510 to 570 are aspherical surfaces.

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

Additionally, the imaging optical system configured in this way may have the aberration characteristics shown in FIG. 10.

An imaging optical system according to a sixth embodiment of the present invention will be described with reference to FIGS. 11 and 12.

The imaging optical system according to the sixth embodiment of the present invention includes a first lens 610, a second lens 620, a third lens 630, a fourth lens 640, a fifth lens 650, and a sixth lens. It includes an optical system including 660 and a seventh lens 670, and may further include an infrared cut-off filter 680, an image sensor 690, and an aperture (ST).

The lens characteristics of each lens (Radius of curvature, thickness of the lens or distance between lenses, index of refraction, Abbe number, effective aperture radius) Same as Table 11.

side number note radius of curvature thickness or distance refractive index Abesu effective radius S0 Infinity -0.1 1.545 S1 first lens 2.182354 0.332873 1.546 56.114 1.380 S2 1.943873 0.05 1.369 S3 second lens 1.685732 0.732159 1.546 56.114 1.335 S4 28.37273 0.05 1.264 S5 third lens 7.153573 0.22 1.679 19.236 1.185 S6 2.922347 0.426406 1.050 S7 4th lens 46.9146 0.312126 1.646 23.528 1.112 S8 17.58601 0.26165 1.268 S9 5th lens 2.265526 0.27 1.646 23.528 1.774 S10 2.314346 0.373051 1.839 S11 6th lens 8.518581 0.607812 1.546 56.114 2.160 S12 -1.98711 0.378187 2.308 S13 7th lens -4.7165 0.36 1.546 56.114 2.780 S14 1.89E+00 0.145735 2.998 S15 filter Infinity 0.11 1.5187 64.1664 3.352752 S16 Infinity 0.66 3.384589 S17 Imaging surface Infinity 0.01 3.712027

In a sixth embodiment of the present invention, the first lens 610 has negative refractive power, the first surface of the first lens 610 is convex in the paraxial region, and the second surface of the first lens 610 is paraxial. It has a concave shape in the area.

The second lens 620 has a positive refractive power, the first surface of the second lens 620 is convex in the paraxial region, and the second surface of the second lens 620 is concave in the paraxial region. The aperture ST is disposed between the first lens 610 and the second lens 620.

The third lens 630 has a negative refractive power, the first surface of the third lens 630 is convex in the paraxial region, and the second surface of the third lens 630 is concave in the paraxial region.

The fourth lens 640 has a negative refractive power, the first surface of the fourth lens 640 is convex in the paraxial region, and the second surface of the fourth lens 640 is concave in the paraxial region.

The fifth lens 650 has a positive refractive power, the first surface of the fifth lens 650 is convex in the paraxial region, and the second surface of the fifth lens 650 is concave in the paraxial region.

The sixth lens 660 has positive refractive power, and the first and second surfaces of the sixth lens 660 have a convex shape in the paraxial region.

The seventh lens 670 has negative refractive power, and the first and second surfaces of the seventh lens 670 are concave in the paraxial region.

Additionally, one inflection point is formed on the first surface of the seventh lens 670. For example, the first surface of the seventh lens 670 may be concave in the paraxial region and become convex toward the edge.

Additionally, one inflection point is formed on the second surface of the seventh lens 670. For example, the second surface of the seventh lens 670 may be concave in the paraxial region and become convex toward the edge.

Meanwhile, each surface of the first to seventh lenses 610 to 670 has an aspheric value as shown in Table 12. For example, both the object-side surface and the image-side surface of the first to seventh lenses 610 to 670 are aspherical surfaces.

K A B C D E F G H S1 -3.5715 0.0005 0.0011 -0.0181 0.0025 0.0107 -0.0084 0.0026 -0.0003 S2 -9.1496 -0.0513 -0.0055 0.0116 0.0161 -0.0207 0.0078 -0.001 0 S3 -2.5622 -0.0879 0.1115 -0.1204 0.1625 -0.1325 0.0578 -0.0118 0.0006 S4 -90 -0.078 0.2103 -0.4384 0.6397 -0.6153 0.3736 -0.1288 0.0189 S5 0 -0.1133 0.2975 -0.5447 0.7496 -0.7199 0.4525 -0.1642 0.0257 S6 4.6946 -0.0705 0.1434 -0.2144 0.1998 -0.0956 -0.0142 0.0399 -0.0137 S7 0 -0.0972 0.1221 -0.3303 0.5457 -0.6222 0.4555 -0.1995 0.0405 S8 0 -0.1596 0.2027 -0.3281 0.3412 -0.2472 0.1212 -0.0385 0.0064 S9 -18.27 -0.0564 -0.0069 0.0518 -0.0566 0.0228 -0.0011 -0.0019 0.0004 S10 -15.127 -0.0603 -0.0145 0.0594 -0.0601 0.0318 -0.0096 0.0015 -1E-04 S11 0 0.0027 -0.0398 0.025 -0.0137 0.005 -0.001 1E-04 -4E-06 S12 -1.1693 0.1224 -0.1006 0.0535 -0.0195 0.005 -0.0008 8E-05 -3E-06 S13 -4.4446 -0.097 -0.0137 0.0358 -0.0141 0.0028 -0.0003 2E-05 -5E-07 S14 -8.7431 -0.0906 0.0342 -0.009 0.0017 -0.0002 2E-05 -1E-06 3E-08

Additionally, the imaging optical system configured in this way may have the aberration characteristics shown in FIG. 12.

An imaging optical system according to a seventh embodiment of the present invention will be described with reference to FIGS. 13 and 14.

The imaging optical system according to the seventh embodiment of the present invention includes a first lens 710, a second lens 720, a third lens 730, a fourth lens 740, a fifth lens 750, and a sixth lens. It includes an optical system including 760 and a seventh lens 770, and may further include an infrared cut-off filter 780, an image sensor 790, and an aperture (ST).

The lens characteristics of each lens (Radius of curvature, thickness of the lens or distance between lenses, index of refraction, Abbe number, effective aperture radius) Same as Table 13.

side number note radius of curvature thickness or distance refractive index Abesu effective radius S0 Infinity -0.1 1.545 S1 first lens 2.126745 0.330179 1.546 56.114 1.380 S2 1.930087 0.05 1.361 S3 second lens 1.70733 0.723075 1.546 56.114 1.320 S4 31.14657 0.05 1.253 S5 third lens 7.287208 0.22 1.679 19.236 1.181 S6 2.917534 0.403626 1.050 S7 4th lens 24.93378 0.309841 1.646 23.528 1.114 S8 14.08268 0.262337 1.280 S9 5th lens 2.227419 0.27 1.646 23.528 1.596 S10 2.272219 0.378005 1.837 S11 6th lens 7.947296 0.533929 1.546 56.114 2.160 S12 -2.09425 0.389377 2.335 S13 7th lens -5.07284 0.36 1.546 56.114 2.780 S14 1.90E+00 0.139631 2.971 S15 filter Infinity 0.11 1.5187 64.1664 3.33819 S16 Infinity 0.663687 3.37095 S17 Imaging surface Infinity 0.006313 3.71475

In a seventh embodiment of the present invention, the first lens 710 has negative refractive power, the first surface of the first lens 710 is convex in the paraxial region, and the second surface of the first lens 710 is paraxial. It has a concave shape in the area.

The second lens 720 has a positive refractive power, the first surface of the second lens 720 is convex in the paraxial region, and the second surface of the second lens 720 is concave in the paraxial region. The aperture ST is disposed between the first lens 710 and the second lens 720.

The third lens 730 has a negative refractive power, the first surface of the third lens 730 is convex in the paraxial region, and the second surface of the third lens 730 is concave in the paraxial region.

The fourth lens 740 has a negative refractive power, the first surface of the fourth lens 740 is convex in the paraxial region, and the second surface of the fourth lens 740 is concave in the paraxial region.

The fifth lens 750 has a positive refractive power, the first surface of the fifth lens 750 is convex in the paraxial region, and the second surface of the fifth lens 750 is concave in the paraxial region.

The sixth lens 760 has positive refractive power, and the first and second surfaces of the sixth lens 760 have a convex shape in the paraxial region.

The seventh lens 770 has negative refractive power, and the first and second surfaces of the seventh lens 770 are concave in the paraxial region.

Additionally, one inflection point is formed on the first surface of the seventh lens 770. For example, the first surface of the seventh lens 770 may be concave in the paraxial region and become convex toward the edge.

Additionally, one inflection point is formed on the second surface of the seventh lens 770. For example, the second surface of the seventh lens 770 may be concave in the paraxial region and become convex toward the edge.

Meanwhile, each surface of the first to seventh lenses 710 to 770 has an aspheric value as shown in Table 14. For example, both the object-side surface and the image-side surface of the first to seventh lenses 710 to 770 are aspherical surfaces.

K A B C D E F G H S1 -3.6056 0.0008 0.0004 -0.0195 0.0022 0.0122 -0.0094 0.0029 -0.0004 S2 -9.0241 -0.0527 -0.0058 0.0121 0.0169 -0.0217 0.0083 -0.0012 0 S3 -2.5303 -0.0892 0.1094 -0.1041 0.1324 -0.0973 0.032 -0.0013 -0.0012 S4 -90 -0.0843 0.2478 -0.5308 0.7726 -0.7432 0.4537 -0.1576 0.0233 S5 0 -0.1207 0.3416 -0.6498 0.8865 -0.8311 0.5112 -0.1829 0.0284 S6 4.7161 -0.0754 0.1654 -0.2636 0.26 -0.1359 0.0012 0.0367 -0.0133 S7 0 -0.0944 0.0993 -0.233 0.3005 -0.2479 0.1155 -0.0309 0.0056 S8 0 -0.1562 0.1842 -0.2656 0.2135 -0.0937 0.0133 0.0025 0 S9 -17.253 -0.0588 -0.0044 0.0598 -0.0719 0.0333 -0.0045 -0.0015 0.0004 S10 -15.241 -0.0602 -0.0202 0.0729 -0.0736 0.0388 -0.0117 0.0019 -0.0001 S11 0 0.0048 -0.0458 0.0293 -0.0162 0.0059 -0.0012 0.0001 -5E-06 S12 -1.2097 0.1237 -0.1034 0.0572 -0.022 0.006 -0.0011 0.0001 -5E-06 S13 -4.5375 -0.1113 0.0003 0.0306 -0.0132 0.0027 -0.0003 2E-05 -5E-07 S14 -9.2133 -0.0932 0.0375 -0.0106 0.0021 -0.0003 3E-05 -2E-06 4E-08

Additionally, the imaging optical system configured in this way may have the aberration characteristics shown in FIG. 14.

An imaging optical system according to an eighth embodiment of the present invention will be described with reference to FIGS. 15 and 16.

The imaging optical system according to the eighth embodiment of the present invention includes a first lens 810, a second lens 820, a third lens 830, a fourth lens 840, a fifth lens 850, and a sixth lens. It may include an optical system including 860 and a seventh lens 870, and may further include an infrared cut-off filter 880, an image sensor 890, and an aperture (ST).

The lens characteristics of each lens (Radius of curvature, thickness of the lens or distance between lenses, index of refraction, Abbe number, effective aperture radius) Same as Table 15.

side number note radius of curvature thickness or distance refractive index Abesu effective radius S1 first lens 1.732331 0.731243 1.546 56.114 1.250 S2 12.53699 0.070023 1.181 S3 second lens 5.589296 0.2 1.667 20.353 1.147 S4 2.573966 0.39715 1.100 S5 third lens 8.065523 0.384736 1.546 56.114 1.128 S6 7.836681 0.192591 1.247 S7 4th lens 6.687158 0.244226 1.546 56.114 1.276 S8 30.32847 0.271297 1.374 S9 5th lens -3.28742 0.24968 1.667 20.353 1.481 S10 -4.51593 0.138845 1.734 S11 6th lens 5.679879 0.519865 1.546 56.114 2.150 S12 -1.89003 0.316634 2.318 S13 7th lens -3.93255 0.3 1.546 56.114 2.640 S14 1.741826 0.193709 2.747 S15 filter Infinity 0.11 1.518 64.166 3.146 S16 Infinity 0.77 3.177045639 S17 Imaging surface Infinity 0.01 3.536356437

In an eighth embodiment of the present invention, the first lens 810 has positive refractive power, the first surface of the first lens 810 is convex in the paraxial region, and the second surface of the first lens 810 is paraxial. It has a concave shape in the area.

The second lens 820 has a negative refractive power, the first surface of the second lens 820 is convex in the paraxial region, and the second surface of the second lens 820 is concave in the paraxial region. The aperture ST is disposed between the first lens 810 and the second lens 820.

The third lens 830 has a negative refractive power, the first surface of the third lens 830 is convex in the paraxial region, and the second surface of the third lens 830 is concave in the paraxial region.

The fourth lens 840 has a positive refractive power, the first surface of the fourth lens 840 is convex in the paraxial region, and the second surface of the fourth lens 840 is concave in the paraxial region.

The fifth lens 850 has a negative refractive power, the first surface of the fifth lens 850 is concave in the paraxial region, and the second surface of the fifth lens 850 is convex in the paraxial region.

The sixth lens 860 has positive refractive power, and the first and second surfaces of the sixth lens 860 have a convex shape in the paraxial region.

The seventh lens 870 has negative refractive power, and the first and second surfaces of the seventh lens 870 are concave in the paraxial region.

Additionally, one inflection point is formed on the first surface of the seventh lens 870. For example, the first surface of the seventh lens 870 may be concave in the paraxial region and become convex toward the edge.

Additionally, one inflection point is formed on the second surface of the seventh lens 870. For example, the second surface of the seventh lens 870 may be concave in the paraxial region and become convex toward the edge.

Meanwhile, each surface of the first to seventh lenses 810 to 870 has an aspheric value as shown in Table 16. For example, both the object-side surface and the image-side surface of the first to seventh lenses 810 to 870 are aspherical surfaces.

K A B C D E F G H I 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

Additionally, the imaging optical system configured in this way may have the aberration characteristics shown in FIG. 16.

An imaging optical system according to a ninth embodiment of the present invention will be described with reference to FIGS. 17 and 18.

The imaging optical system according to the ninth embodiment of the present invention includes a first lens 910, a second lens 920, a third lens 930, a fourth lens 940, a fifth lens 950, and a sixth lens. It includes an optical system including 960 and a seventh lens 970, and may further include an infrared cut-off filter 980, an image sensor 990, and an aperture (ST).

The lens characteristics of each lens (Radius of curvature, thickness of the lens or distance between lenses, index of refraction, Abbe number, effective aperture radius) Same as Table 17.

side number note radius of curvature thickness or distance refractive index Abesu effective radius S1 first lens 1.764902 0.674474 1.546 56.114 1.275 S2 12.91258 0.094076 1.233 S3 second lens 5.799997 0.2 1.667 20.353 1.195 S4 2.670885 0.396272 1.100 S5 third lens 8.075194 0.368135 1.546 56.114 1.151 S6 7.933456 0.175246 1.259 S7 4th lens 6.768021 0.255087 1.546 56.114 1.286 S8 67.28635 0.235809 1.380 S9 5th lens -3.06032 0.443034 1.667 20.353 1.442 S10 -4.67357 0.10084 1.791 S11 6th lens 5.00074 0.64924 1.546 56.114 2.150 S12 -1.88916 0.317946 2.240 S13 7th lens -3.74676 0.3 1.546 56.114 2.630 S14 1.773698 0.206562 2.848 S15 filter Infinity 0.11 1.518 64.166 3.145 S16 Infinity 0.772966 3.175805704 S17 Imaging surface Infinity 0.007034 3.5352

In a ninth embodiment of the present invention, the first lens 910 has positive refractive power, the first surface of the first lens 910 is convex in the paraxial region, and the second surface of the first lens 910 is paraxial. It has a concave shape in the area.

The second lens 920 has a negative refractive power, the first surface of the second lens 920 is convex in the paraxial region, and the second surface of the second lens 920 is concave in the paraxial region. The aperture ST is disposed between the first lens 910 and the second lens 920.

The third lens 930 has a negative refractive power, the first surface of the third lens 930 is convex in the paraxial region, and the second surface of the third lens 930 is concave in the paraxial region.

The fourth lens 940 has a positive refractive power, the first surface of the fourth lens 940 is convex in the paraxial region, and the second surface of the fourth lens 940 is concave in the paraxial region.

The fifth lens 950 has a negative refractive power, the first surface of the fifth lens 950 is concave in the paraxial region, and the second surface of the fifth lens 950 is convex in the paraxial region.

The sixth lens 960 has positive refractive power, and the first and second surfaces of the sixth lens 960 have a convex shape in the paraxial region.

The seventh lens 970 has negative refractive power, and the first and second surfaces of the seventh lens 970 are concave in the paraxial region.

Additionally, one inflection point is formed on the first surface of the seventh lens 970. For example, the first surface of the seventh lens 970 may be concave in the paraxial region and become convex toward the edge.

Additionally, one inflection point is formed on the second surface of the seventh lens 970. For example, the second surface of the seventh lens 970 may be concave in the paraxial region and become convex toward the edge.

Meanwhile, each surface of the first to seventh lenses 910 to 970 has an aspheric value as shown in Table 18. For example, both the object-side surface and the image-side surface of the first to seventh lenses 910 to 970 are aspherical surfaces.

K A B C D E F G H I S1 -0.7789 0.01577 0.02444 -0.0393 0.03572 0.00418 -0.0324 0.02216 -0.0051 0 S2 47.4413 -0.0594 0.12758 -0.1968 0.24142 -0.2248 0.13432 -0.0437 0.00565 0 S3 1.5303 -0.1427 0.26196 -0.2575 0.0999 0.08468 -0.1268 0.0638 -0.0121 0 S4 -0.5218 -0.0893 0.11518 0.2315 -1.0487 1.83714 -1.7096 0.83841 -0.1681 0 S5 0 -0.0664 0.02668 -0.0848 0.11 -0.1037 0.05081 -0.0058 -0.0011 0 S6 0 -0.098 0.02947 0.00734 -0.1441 0.24446 -0.2359 0.12222 -0.0253 0 S7 25.6375 -0.1292 -0.1525 0.33124 -0.5486 0.69506 -0.5835 0.2684 -0.0499 0 S8 -99 0.0154 -0.3791 0.53841 -0.6761 0.71447 -0.4636 0.15574 -0.0206 0 S9 -70.99 -0.0737 0.21432 -0.6477 0.78996 -0.4841 0.15649 -0.0253 0.00161 0 S10 1.47842 0.11551 -0.1988 0.12135 -0.0392 0.0079 -0.0011 0.00011 -5E-06 0 S11 -99 0.11202 -0.1646 0.11135 -0.0519 0.01479 -0.0024 0.0002 -7E-06 0 S12 -3.0236 0.11484 -0.1161 0.06277 -0.0227 0.00551 -0.0008 6.7E-05 -2E-06 0 S13 -2.6326 -0.0907 -0.0446 0.06339 -0.0255 0.00537 -0.0006 4.2E-05 -1E-06 0 S14 -1.0849 -0.259 0.1596 -0.0758 0.02635 -0.0064 0.00104 -0.0001 6.1E-06 -2E-07

Additionally, the imaging optical system configured in this way may have the aberration characteristics shown in FIG. 18.

An imaging optical system according to a tenth embodiment of the present invention will be described with reference to FIGS. 19 and 20.

The imaging optical system according to the tenth embodiment of the present invention includes a first lens 1010, a second lens 1020, a third lens 1030, a fourth lens 1040, a fifth lens 1050, and a sixth lens. It includes an optical system including (1060) and a seventh lens (1070), and may further include an infrared cut-off filter (1080), an image sensor (1090), and an aperture (ST).

The lens characteristics of each lens (Radius of curvature, thickness of the lens or distance between lenses, index of refraction, Abbe number, effective aperture radius) Same as Table 19.

side number note radius of curvature thickness or distance refractive index Abesu effective radius S1 first lens 1.725845 0.726326 1.546 56.114 1.310 S2 12.83315 0.055329 1.274 S3 second lens 5.358298 0.181707 1.667 20.353 1.218 S4 2.541322 0.401791 1.100 S5 third lens 8.435541 0.408349 1.546 56.114 1.131 S6 7.874557 0.186858 1.245 S7 4th lens 6.705131 0.298547 1.546 56.114 1.272 S8 27.19617 0.256118 1.379 S9 5th lens -3.28751 0.241636 1.667 20.353 1.449 S10 -4.34069 0.090002 1.647 S11 6th lens 5.401728 0.493563 1.546 56.114 2.150 S12 -1.72062 0.282074 2.138 S13 7th lens -3.99594 0.300688 1.546 56.114 2.363 S14 1.586532 0.212709 2.585 S15 filter Infinity 0.11 1.518 64.166 2.904 S16 Infinity 0.77 2.93204801 S17 Imaging surface Infinity 0.01 3.282195737

In a tenth embodiment of the present invention, the first lens 1010 has positive refractive power, the first surface of the first lens 1010 is convex in the paraxial region, and the second surface of the first lens 1010 is paraxial. It has a concave shape in the area.

The second lens 1020 has a negative refractive power, the first surface of the second lens 1020 is convex in the paraxial region, and the second surface of the second lens 1020 is concave in the paraxial region. The aperture ST is disposed between the first lens 1010 and the second lens 1020.

The third lens 1030 has a negative refractive power, the first surface of the third lens 1030 is convex in the paraxial region, and the second surface of the third lens 1030 is concave in the paraxial region.

The fourth lens 1040 has a positive refractive power, the first surface of the fourth lens 1040 is convex in the paraxial region, and the second surface of the fourth lens 1040 is concave in the paraxial region.

The fifth lens 1050 has a negative refractive power, the first surface of the fifth lens 1050 is concave in the paraxial region, and the second surface of the fifth lens 1050 is convex in the paraxial region.

The sixth lens 1060 has positive refractive power, and the first and second surfaces of the sixth lens 1060 have a convex shape in the paraxial region.

The seventh lens 1070 has negative refractive power, and the first and second surfaces of the seventh lens 1070 are concave in the paraxial region.

Additionally, one inflection point is formed on the first surface of the seventh lens 1070. For example, the first surface of the seventh lens 1070 may be concave in the paraxial region and become convex toward the edge.

Additionally, one inflection point is formed on the second surface of the seventh lens 1070. For example, the second surface of the seventh lens 1070 may be concave in the paraxial region and become convex toward the edge.

Meanwhile, each surface of the first to seventh lenses 1010 to 1070 has an aspheric value as shown in Table 20. For example, both the object-side surface and the image-side surface of the first to seventh lenses 1010 to 1070 are aspherical surfaces.

K A B C D E F G H I S1 -0.7633 0.01527 0.01019 0.0604 -0.2258 0.35306 -0.2845 0.11676 -0.0196 0 S2 36.2518 -0.0857 0.28623 -0.6478 0.9663 -0.9184 0.52698 -0.1654 0.02147 0 S3 -2.2692 -0.1619 0.40214 -0.7024 0.86766 -0.7104 0.37031 -0.1094 0.01364 0 S4 -0.5501 -0.0782 0.07842 0.32154 -1.2153 1.98953 -1.7497 0.81604 -0.1565 0 S5 0 -0.0637 0.03982 -0.1864 0.37638 -0.5082 0.40475 -0.1698 0.02998 0 S6 0 -0.099 0.02 0.02036 -0.1635 0.24341 -0.2157 0.1109 -0.0238 0 S7 25.107 -0.1211 -0.2111 0.49819 -0.7382 0.7709 -0.5844 0.26919 -0.0523 0 S8 -99 0.00624 -0.3995 0.51975 -0.4722 0.40416 -0.2607 0.09371 -0.0133 0 S9 -69.265 0.08083 -0.1563 -0.2824 0.61355 -0.4491 0.15873 -0.0272 0.00181 0 S10 3.04238 0.24647 -0.5089 0.39539 -0.1641 0.04036 -0.006 0.00051 -2E-05 0 S11 -99 0.12569 -0.2316 0.18601 -0.0999 0.03252 -0.0059 0.00056 -2E-05 0 S12 -3.663 0.14498 -0.1575 0.09504 -0.0383 0.01029 -0.0017 0.00015 -6E-06 0 S13 -2.6499 -0.0877 -0.0968 0.12134 -0.0535 0.01276 -0.0017 0.00013 -4E-06 0 S14 -1.0624 -0.3185 0.22606 -0.1296 0.05544 -0.0167 0.00337 -0.0004 3.1E-05 -1E-06

Additionally, the imaging optical system configured in this way may have the aberration characteristics shown in FIG. 20.

An imaging optical system according to an 11th embodiment of the present invention will be described with reference to FIGS. 21 and 22.

The imaging optical system according to the 11th embodiment of the present invention includes a first lens 1110, a second lens 1120, a third lens 1130, a fourth lens 1140, a fifth lens 1150, and a sixth lens. It may include an optical system including (1160) and a seventh lens (1170), and may further include an infrared cut-off filter (1180), an image sensor (1190), and an aperture (ST).

The lens characteristics of each lens (Radius of curvature, thickness of the lens or distance between lenses, index of refraction, Abbe number, effective aperture radius) Same as Table 21.

side number note radius of curvature thickness or distance refractive index Abesu effective radius S1 first lens 2.141 0.481 1.546 56.114 1.450 S2 3.251 0.110 1.350 S3 second lens 3.253 0.542 1.546 56.114 1.285 S4 -15.773 0.025 1.232 S5 third lens 8.425 0.230 1.679 19.236 1.157 S6 3.514 0.625 1.095 S7 4th lens 25.986 0.296 1.679 19.236 1.265 S8 15.894 0.230 1.452 S9 5th lens 3.048 0.400 1.546 56.114 1.675 S10 3.616 0.290 2.092 S11 6th lens 3.762 0.400 1.679 19.236 2.153 S12 2.792 0.204 2.476 S13 7th lens 1.614 0.510 1.537 53.955 2.938 S14 1.326 0.196 3.102 S15 filter Infinity 0.110 1.518 64.197 3.420 S16 Infinity 0.639 3.450 S17 Imaging surface Infinity 0.011 3.730

In an eleventh embodiment of the present invention, the first lens 1110 has positive refractive power, the first surface of the first lens 1110 is convex in the paraxial region, and the second surface of the first lens 1110 is paraxial. It has a concave shape in the area.

The second lens 1120 has positive refractive power, and the first and second surfaces of the second lens 1120 have a convex shape in the paraxial region.

The third lens 1130 has a negative refractive power, the first surface of the third lens 1130 is convex in the paraxial region, and the second surface of the third lens 1130 is concave in the paraxial region. The aperture ST is disposed between the second lens 1120 and the third lens 1130.

The fourth lens 1140 has a negative refractive power, the first surface of the fourth lens 1140 is convex in the paraxial region, and the second surface of the fourth lens 1140 is concave in the paraxial region.

The fifth lens 1150 has a positive refractive power, the first surface of the fifth lens 1150 is convex in the paraxial region, and the second surface of the fifth lens 1150 is concave in the paraxial region.

The sixth lens 1160 has a negative refractive power, the first surface of the sixth lens 1160 is convex in the paraxial region, and the second surface of the sixth lens 1160 is concave in the paraxial region.

The seventh lens 1170 has a negative refractive power, the first surface of the seventh lens 1170 is convex in the paraxial region, and the second surface of the seventh lens 1170 is concave in the paraxial region.

Additionally, two inflection points are formed on the first surface of the seventh lens 1170. For example, the first surface of the seventh lens 1170 may be convex in the paraxial region, concave outside the paraxial region, and become convex toward the edge.

Additionally, one inflection point is formed on the second surface of the seventh lens 1170. For example, the second surface of the seventh lens 1170 may be concave in the paraxial region and become convex toward the edge.

Meanwhile, each surface of the first to seventh lenses 1110 to 1170 has an aspheric value as shown in Table 22. For example, both the object-side surface and the image-side surface of the first to seventh lenses 1110 to 1170 are aspherical surfaces.

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

Additionally, the imaging optical system configured in this way may have the aberration characteristics shown in FIG. 22.

An imaging optical system according to a twelfth embodiment of the present invention will be described with reference to FIGS. 23 and 24.

The imaging optical system according to the twelfth embodiment of the present invention includes a first lens 1210, a second lens 1220, a third lens 1230, a fourth lens 1240, a fifth lens 1250, and a sixth lens. It includes an optical system including 1260 and a seventh lens 1270, and may further include an infrared cut-off filter 1280, an image sensor 1290, and an aperture (ST).

The lens characteristics of each lens (Radius of curvature, thickness of the lens or distance between lenses, index of refraction, Abbe number, effective aperture radius) Same as Table 23.

side number note radius of curvature thickness or distance refractive index Abesu effective radius S1 first lens 2.062390847 0.549221 1.546 56.114 1.300 S2 3.115022572 0.12573 1.269 S3 second lens 3.019782285 0.475479 1.546 56.114 1.226 S4 -32.61903406 0.029007 1.169 S5 third lens 12.48638448 0.23 1.679 19.236 1.128 S6 3.673999557 0.508029 1.150 S7 4th lens 9.999305402 0.324897 1.546 56.114 1.247 S8 11.60588517 0.351663 1.382 S9 5th lens 4.973099171 0.4 1.546 56.114 1.576 S10 5.409448495 0.264386 2.010 S11 6th lens 4.04853641 0.458911 1.679 19.236 2.071 S12 2.957671081 0.168173 2.362 S13 7th lens 1.611526435 0.546398 1.546 56.114 2.814 S14 1.391737578 0.208106 3.059 S15 filter Infinity 0.21 1.518 64.197 3.377 S16 Infinity 0.639461 3.436039009 S17 Imaging surface Infinity 0.010539 3.728313758

In a twelfth embodiment of the present invention, the first lens 1210 has positive refractive power, the first surface of the first lens 1210 is convex in the paraxial region, and the second surface of the first lens 1210 is paraxial. It has a concave shape in the area.

The second lens 1220 has positive refractive power, and the first and second surfaces of the second lens 1220 have a convex shape in the paraxial region.

The third lens 1230 has a negative refractive power, the first surface of the third lens 1230 is convex in the paraxial region, and the second surface of the third lens 1230 is concave in the paraxial region. The aperture ST is disposed between the second lens 1220 and the third lens 1230.

The fourth lens 1240 has a positive refractive power, the first surface of the fourth lens 1240 is convex in the paraxial region, and the second surface of the fourth lens 1240 is concave in the paraxial region.

The fifth lens 1250 has a positive refractive power, the first surface of the fifth lens 1250 is convex in the paraxial region, and the second surface of the fifth lens 1250 is concave in the paraxial region.

The sixth lens 1260 has a negative refractive power, the first surface of the sixth lens 1260 is convex in the paraxial region, and the second surface of the sixth lens 1260 is concave in the paraxial region.

The seventh lens 1270 has a negative refractive power, the first surface of the seventh lens 1270 is convex in the paraxial region, and the second surface of the seventh lens 1270 is concave in the paraxial region.

Additionally, two inflection points are formed on the first surface of the seventh lens 1270. For example, the first surface of the seventh lens 1270 may be convex in the paraxial region, concave outside the paraxial region, and become convex toward the edge.

Additionally, one inflection point is formed on the second surface of the seventh lens 1270. For example, the second surface of the seventh lens 1270 may be concave in the paraxial region and become convex toward the edge.

Meanwhile, each surface of the first to seventh lenses 1210 to 1270 has an aspheric value as shown in Table 24. For example, both the object-side surface and the image-side surface of the first to seventh lenses 1210 to 1270 are aspherical surfaces.

K A B C D E F G H J S1 -One -0.0034 0.001 -0.022 0.01746 0.00663 -0.0303 0.0264 -0.0098 0.00135 S2 -12.778 -0.0034 -0.0902 0.11137 -0.1942 0.30069 -0.2756 0.14506 -0.0413 0.00495 S3 -1.4955 -0.0377 0.00139 -0.1704 0.4417 -0.5812 0.52251 -0.3089 0.10432 -0.0152 S4 -7.0565 -0.0312 0.14518 -0.4736 0.81424 -0.7738 0.37673 -0.0489 -0.0295 0.00918 S5 13.4217 -0.0799 0.23023 -0.6049 1.06938 -1.2451 0.91384 -0.3957 0.09059 -0.0083 S6 0.77813 -0.0659 0.13895 -0.4292 1.15321 -2.1708 2.58523 -1.8433 0.72003 -0.1185 S7 -8.4178 -0.0602 0.03481 -0.2053 0.62429 -1.1494 1.28371 -0.8624 0.32077 -0.0505 S8 6.0295 -0.0644 0.00369 -0.0458 0.13429 -0.2199 0.21381 -0.1247 0.04057 -0.0056 S9 -43.444 0.03061 -0.0578 -0.0157 0.11319 -0.1547 0.10757 -0.0423 0.00887 -0.0008 S10 -1.2731 0.0461 -0.1666 0.19559 -0.1416 0.06564 -0.0198 0.00377 -0.0004 2E-05 S11 -16.612 0.10295 -0.2048 0.17348 -0.0998 0.03718 -0.0087 0.00121 -9E-05 3E-06 S12 0.05606 -0.0584 -0.0221 0.02001 -0.0094 0.00248 -0.0003 7.8E-06 2.5E-06 -2E-07 S13 -0.814 -0.3511 0.11636 -0.009 -0.006 0.00231 -0.0004 3.8E-05 -2E-06 4.1E-08 S14 -1.3896 -0.2618 0.12675 -0.0454 0.01236 -0.0024 0.00032 -3E-05 1.3E-06 -3E-08

Additionally, the imaging optical system configured in this way may have the aberration characteristics shown in FIG. 24.

An imaging optical system according to a thirteenth embodiment of the present invention will be described with reference to FIGS. 25 and 26.

The imaging optical system according to the 13th embodiment of the present invention includes a first lens 1310, a second lens 1320, a third lens 1330, a fourth lens 1340, a fifth lens 1350, and a sixth lens. It may include an optical system including (1360) and a seventh lens (1370), and may further include an infrared cut-off filter (1380), an image sensor (1390), and an aperture (ST).

The lens characteristics of each lens (Radius of curvature, thickness of the lens or distance between lenses, index of refraction, Abbe number, effective aperture radius) Same as Table 25.

side number note radius of curvature thickness or distance refractive index Abesu effective radius S0 Infinity 0 1.640 S1 first lens 1.782893 0.704778 1.5441 56.1138 1.230 S2 10.92187 0.1 1.159 S3 second lens 7.583649 0.22 1.6612 20.3532 1.147 S4 3.033178 0.30485 1.100 S5 third lens 6.242392 0.451648 1.5441 56.1138 1.142 S6 14.50542 0.217837 1.244 S7 4th lens 10.85441 0.292985 1.5441 56.1138 1.258 S8 21.62499 0.244924 1.396 S9 5th lens -3.38391 0.281835 1.6612 20.3532 1.508 S10 -2.86511 0.1 1.774 S11 6th lens 33.58577 0.586991 1.5441 56.1138 2.150 S12 -2.16115 0.361746 2.417 S13 7th lens -5.18033 0.32 1.5441 56.1138 2.686 S14 1.65E+00 0.152408 2.872 S15 filter Infinity 0.11 3.187637061 S16 Infinity 0.63 3.220023389 S17 Imaging surface Infinity 0.02 3.5352

In a thirteenth embodiment of the present invention, the first lens 1310 has positive refractive power, the first surface of the first lens 1310 is convex in the paraxial region, and the second surface of the first lens 1310 is paraxial. It has a concave shape in the area.

The second lens 1320 has a negative refractive power, the first surface of the second lens 1320 is convex in the paraxial region, and the second surface of the second lens 1320 is concave in the paraxial region. The aperture ST is disposed between the first lens 1310 and the second lens 1320.

The third lens 1330 has a positive refractive power, the first surface of the third lens 1330 is convex in the paraxial region, and the second surface of the third lens 1330 is concave in the paraxial region.

The fourth lens 1340 has a positive refractive power, the first surface of the fourth lens 1340 is convex in the paraxial region, and the second surface of the fourth lens 1340 is concave in the paraxial region.

The fifth lens 1350 has a positive refractive power, the first surface of the fifth lens 1350 is concave in the paraxial region, and the second surface of the fifth lens 1350 is convex in the paraxial region.

The sixth lens 1360 has positive refractive power, and the first and second surfaces of the sixth lens 1360 have a convex shape in the paraxial region.

The seventh lens 1370 has negative refractive power, and the first and second surfaces of the seventh lens 1270 are concave in the paraxial region.

Additionally, two inflection points are formed on the first surface of the seventh lens 1370. For example, the first surface of the seventh lens 1370 may be concave in the paraxial region, convex outside the paraxial region, and become concave toward the edge.

Additionally, two inflection points are formed on the second surface of the seventh lens 1370. For example, the second surface of the seventh lens 1370 may be concave in the paraxial region, convex outside the paraxial region, and become concave toward the edge.

Meanwhile, each surface of the first to seventh lenses 1310 to 1370 has an aspheric value as shown in Table 26. For example, both the object-side surface and the image-side surface of the first to seventh lenses 1310 to 1370 are aspherical surfaces.

K A B C D E F G H I S1 -0.8428 0.0071 0.0769 -0.2159 0.3706 -0.3764 0.2225 -0.0702 0.0089 0 S2 23.94 -0.035 0.0369 -0.0159 0.0011 -0.0217 0.0338 -0.0183 0.0032 0 S3 -0.7299 -0.0968 0.1436 -0.1236 0.0758 -0.038 0.0258 -0.0134 0.0026 0 S4 -0.805 -0.0567 0.0037 0.4377 -1.2985 1.9916 -1.7112 0.7871 -0.15 0 S5 0 -0.0594 0.0805 -0.3116 0.5862 -0.6888 0.4848 -0.1847 0.0297 0 S6 0 -0.0796 0.0492 -0.1363 0.1557 -0.1354 0.0658 -0.0101 -0.0017 0 S7 53.254 -0.1627 -0.0904 0.3621 -0.7622 0.921 -0.6509 0.2496 -0.0398 0 S8 -99 -0.0906 -0.2132 0.4899 -0.7712 0.8152 -0.4991 0.1581 -0.0199 0 S9 -62.683 -0.0674 0.1744 -0.4494 0.5071 -0.2897 0.0856 -0.0121 0.0006 0 S10 -0.2348 0.1907 -0.2275 0.1051 -0.0154 -0.003 0.0013 -0.0001 6E-06 0 S11 -99 0.1619 -0.2076 0.1398 -0.0674 0.0202 -0.0034 0.0003 -1E-05 0 S12 -4.0611 0.1384 -0.1115 0.0543 -0.0188 0.0044 -0.0006 5E-05 -2E-06 0 S13 -1.1327 -0.0936 -0.0532 0.0697 -0.0272 0.0056 -0.0007 4E-05 -1E-06 0 S14 -1.172 -0.2591 0.154 -0.0738 0.0266 -0.0067 0.0011 -0.0001 7E-06 -2E-07

Additionally, the imaging optical system configured in this way may have the aberration characteristics shown in FIG. 26.

An imaging optical system according to a fourteenth embodiment of the present invention will be described with reference to FIGS. 27 and 28.

The imaging optical system according to the fourteenth embodiment of the present invention includes a first lens 1410, a second lens 1420, a third lens 1430, a fourth lens 1440, a fifth lens 1450, and a sixth lens. It includes an optical system including (1460) and a seventh lens (1470), and may further include an infrared cut-off filter (1480), an image sensor (1490), and an aperture (ST).

The lens characteristics of each lens (Radius of curvature, thickness of the lens or distance between lenses, index of refraction, Abbe number, effective aperture radius) Same as Table 27.

side number note radius of curvature thickness or distance refractive index Abesu effective radius S0 Infinity -0.25 1.073 S1 first lens 1.721083 0.634874 1.5441 56.1138 1.100 S2 11.45706 0.121172 1.071 S3 second lens 119.1721 0.203286 1.6612 20.3532 1.057 S4 4.475787 0.084345 1.043 S5 third lens 4.525763 0.310946 1.5441 56.1138 1.051 S6 20.60825 0.215768 1.015 S7 4th lens 13.21519 0.236935 1.5441 56.1138 1.019 S8 16.27332 0.210349 1.070 S9 5th lens -6.57315 0.41188 1.651 21.4942 1.076 S10 -10.4553 0.371031 1.320 S11 6th lens 3.477886 0.631775 1.5441 56.1138 1.556 S12 3.199354 0.267164 2.337 S13 7th lens 2.880384 0.505977 1.5441 56.1138 2.489 S14 1.71E+00 0.138438 2.666 S15 filter Infinity 0.21 3.102058013 S16 Infinity 0.579354 3.177033741 S17 Imaging surface Infinity 0.010646 3.529142415

In a fourteenth embodiment of the present invention, the first lens 1410 has positive refractive power, the first surface of the first lens 1410 is convex in the paraxial region, and the second surface of the first lens 1410 is paraxial. It has a concave shape in the area.

The second lens 1420 has a negative refractive power, the first surface of the second lens 1420 is convex in the paraxial region, and the second surface of the second lens 1420 is concave in the paraxial region. The aperture ST is disposed between the first lens 1410 and the second lens 1420.

The third lens 1430 has a positive refractive power, the first surface of the third lens 1430 is convex in the paraxial region, and the second surface of the third lens 1430 is concave in the paraxial region.

The fourth lens 1440 has a positive refractive power, the first surface of the fourth lens 1440 is convex in the paraxial region, and the second surface of the fourth lens 1440 is concave in the paraxial region.

The fifth lens 1450 has a negative refractive power, the first surface of the fifth lens 1450 is concave in the paraxial region, and the second surface of the fifth lens 1450 is convex in the paraxial region.

The sixth lens 1460 has a negative refractive power, the first surface of the sixth lens 1460 is convex in the paraxial region, and the second surface of the sixth lens 1460 is concave in the paraxial region.

The seventh lens 1470 has a negative refractive power, the first surface of the seventh lens 1470 is convex in the paraxial region, and the second surface of the seventh lens 1470 is concave in the paraxial region.

Additionally, one inflection point is formed on the first surface of the seventh lens 1470. For example, the first surface of the seventh lens 1470 may be convex in the paraxial region and become concave toward the edge.

Additionally, one inflection point is formed on the second surface of the seventh lens 1470. For example, the second surface of the seventh lens 1470 may be concave in the paraxial region and become convex toward the edge.

Meanwhile, each surface of the first to seventh lenses 1410 to 1470 has an aspheric value as shown in Table 28. For example, both the object-side surface and the image-side surface of the first to seventh lenses 1410 to 1470 are aspherical surfaces.

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

Additionally, the imaging optical system configured in this way may have the aberration characteristics shown in FIG. 28.

An imaging optical system according to a fifteenth embodiment of the present invention will be described with reference to FIGS. 29 and 30.

The imaging optical system according to the 15th embodiment of the present invention includes a first lens 1510, a second lens 1520, a third lens 1530, a fourth lens 1540, a fifth lens 1550, and a sixth lens. It includes an optical system including 1560 and a seventh lens 1570, and may further include an infrared cut-off filter 1580, an image sensor 1590, and an aperture (ST).

The lens characteristics of each lens (Radius of curvature, thickness of the lens or distance between lenses, index of refraction, Abbe number, effective aperture radius) Same as Table 29.

side number note radius of curvature thickness or distance refractive index Abesu effective radius S0 Infinity 0 1.571 S1 first lens 1.777275 0.623828 1.5441 56.1138 1.217 S2 6.456568 0.1 1.158 S3 second lens 4.41033 0.236253 1.6612 20.3532 1.157 S4 2.658351 0.413785 1.184 S5 third lens 6.587882 0.464049 1.5441 56.1138 1.177 S6 10.52328 0.17773 1.282 S7 4th lens 13.47488 0.362661 1.5441 56.1138 1.306 S8 -20.23 0.232536 1.444 S9 5th lens -3.18309 0.2 1.6612 20.3532 1.456 S10 -4.21505 0.1 1.625 S11 6th lens 6.764633 0.608917 1.5441 56.1138 2.207 S12 -2.87919 0.421093 2.145 S13 7th lens -6.99582 0.32 1.5441 56.1138 2.280 S14 1.69E+00 0.14847 3.165 S15 filter Infinity 0.11 2.850141022 S16 Infinity 0.700678 2.888122651 S17 Imaging surface Infinity -0.02 3.276451571

In a fifteenth embodiment of the present invention, the first lens 1510 has positive refractive power, the first surface of the first lens 1510 is convex in the paraxial region, and the second surface of the first lens 1510 is paraxial. It has a concave shape in the area.

The second lens 1520 has a negative refractive power, the first surface of the second lens 1520 is convex in the paraxial region, and the second surface of the second lens 1520 is concave in the paraxial region. The aperture ST is disposed between the first lens 1510 and the second lens 1520.

The third lens 1530 has a positive refractive power, the first surface of the third lens 1530 is convex in the paraxial region, and the second surface of the third lens 1530 is concave in the paraxial region.

The fourth lens 1540 has positive refractive power, and the first and second surfaces of the fourth lens 1540 have a convex shape in the paraxial region.

The fifth lens 1550 has a negative refractive power, the first surface of the fifth lens 1550 is concave in the paraxial region, and the second surface of the fifth lens 1550 is convex in the paraxial region.

The sixth lens 1560 has positive refractive power, and the first and second surfaces of the sixth lens 1560 have a convex shape in the paraxial region.

The seventh lens 1570 has negative refractive power, and the first and second surfaces of the seventh lens 1570 are concave in the paraxial region.

Additionally, one inflection point is formed on the first surface of the seventh lens 1570. For example, the first surface of the seventh lens 1570 may be concave in the paraxial region and become convex toward the edge.

Additionally, one inflection point is formed on the second surface of the seventh lens 1570. For example, the second surface of the seventh lens 1570 may be concave in the paraxial region and become convex toward the edge.

Meanwhile, each surface of the first to seventh lenses 1510 to 1570 has an aspheric value as shown in Table 30. For example, both the object-side surface and the image-side surface of the first to seventh lenses 1510 to 1570 are aspherical surfaces.

K A B C D E F G H I 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

Additionally, the imaging optical system configured in this way may have the aberration characteristics shown in FIG. 30.

An imaging optical system according to a sixteenth embodiment of the present invention will be described with reference to FIGS. 31 and 32.

The imaging optical system according to the 16th embodiment of the present invention includes a first lens 1610, a second lens 1620, a third lens 1630, a fourth lens 1640, a fifth lens 1650, and a sixth lens. It includes an optical system including (1660) and a seventh lens (1670), and may further include an infrared cut-off filter (1680), an image sensor (1690), and an aperture (ST).

The lens characteristics of each lens (Radius of curvature, thickness of the lens or distance between lenses, index of refraction, Abbe number, effective aperture radius) Same as Table 31.

side number note radius of curvature thickness or distance refractive index Abesu effective radius S0 Infinity 0 1.683 S1 first lens 1.797739 0.640884 1.5441 56.1138 1.270 S2 3.742203 0.119077 1.211 S3 second lens 3.057321 0.22 1.6612 20.3532 1.190 S4 2.795092 0.393079 1.130 S5 third lens 10.62153 0.464034 1.5441 56.1138 1.153 S6 9.026562 0.1 1.289 S7 4th lens 7.987624 0.36214 1.5441 56.1138 1.328 S8 138.7678 0.233384 1.454 S9 5th lens -4.1765 0.219829 1.6612 20.3532 1.518 S10 -4.13945 0.1 1.656 S11 6th lens 4.613403 0.608917 1.5441 56.1138 2.000 S12 -3.59211 0.472598 2.038 S13 7th lens -7.00157 0.32 1.5441 56.1138 2.049 S14 1.69E+00 0.110689 2.685 S15 filter Infinity 0.21 2.941536401 S16 Infinity 0.529988 3.008025404 S17 Imaging surface Infinity 0.02 3.291609937

In a sixteenth embodiment of the present invention, the first lens 1610 has positive refractive power, the first surface of the first lens 1610 is convex in the paraxial region, and the second surface of the first lens 1610 is paraxial. It has a concave shape in the area.

The second lens 1620 has a negative refractive power, the first surface of the second lens 1620 is convex in the paraxial region, and the second surface of the second lens 1620 is concave in the paraxial region. The aperture ST is disposed between the first lens 1610 and the second lens 1620.

The third lens 1630 has a negative refractive power, the first surface of the third lens 1630 is convex in the paraxial region, and the second surface of the third lens 1630 is concave in the paraxial region.

The fourth lens 1640 has a positive refractive power, the first surface of the fourth lens 1640 is convex in the paraxial region, and the second surface of the fourth lens 1640 is concave in the paraxial region.

The fifth lens 1650 has a positive refractive power, the first surface of the fifth lens 1650 is concave in the paraxial region, and the second surface of the fifth lens 1650 is convex in the paraxial region.

The sixth lens 1660 has positive refractive power, and the first and second surfaces of the sixth lens 1660 have a convex shape in the paraxial region.

The seventh lens 1670 has negative refractive power, and the first and second surfaces of the seventh lens 1670 are concave in the paraxial region.

Additionally, one inflection point is formed on the second surface of the seventh lens 1670. For example, the second surface of the seventh lens 1670 may be concave in the paraxial region and become convex toward the edge.

Meanwhile, each surface of the first to seventh lenses 1610 to 1670 has an aspheric value as shown in Table 32. For example, both the object-side surface and the image-side surface of the first to seventh lenses 1610 to 1670 are aspherical surfaces.

K A B C D E F G H I S1 -0.812 0.0136 0.0311 -0.0769 0.1226 -0.1099 0.0531 -0.0116 0.0005 0 S2 -6.6917 -0.0631 0.0174 0.0714 -0.1648 0.1763 -0.1086 0.0376 -0.0059 0 S3 -14.579 -0.0707 0.0068 0.1319 -0.2129 0.173 -0.0715 0.0127 -0.0005 0 S4 -0.188 -0.0614 -0.0138 0.3338 -0.7392 0.9251 -0.6781 0.276 -0.0477 0 S5 0 -0.0572 0.0435 -0.1733 0.2724 -0.2421 0.0931 -0.0042 -0.0038 0 S6 0 -0.1356 -0.0309 0.2183 -0.5547 0.6931 -0.486 0.1856 -0.0304 0 S7 30.023 -0.2107 0.0007 0.1568 -0.2854 0.2586 -0.1154 0.0236 -0.0019 0 S8 -99 -0.1858 -0.0192 0.2616 -0.4111 0.3392 -0.1538 0.0357 -0.0033 0 S9 -98.995 -0.2935 0.5043 -0.5157 0.2657 -0.0658 0.0056 0.0005 -8E-05 0 S10 -0.0701 -0.0775 0.2223 -0.2703 0.1529 -0.0452 0.0073 -0.0006 2E-05 0 S11 -97.878 0.1479 -0.1956 0.1288 -0.0598 0.0172 -0.0028 0.0002 -8E-06 0 S12 1.4166 0.1234 -0.1416 0.087 -0.0341 0.0088 -0.0014 0.0001 -4E-06 0 S13 9.5503 -0.2864 0.1096 0.0149 -0.0214 0.0064 -0.0009 6E-05 -2E-06 0 S14 -1.2786 -0.3076 0.1777 -0.0626 0.0143 -0.0022 0.0002 -1E-05 5E-07 -7E-09

Additionally, the imaging optical system configured in this way may have the aberration characteristics shown in FIG. 32.

An imaging optical system according to a 17th embodiment of the present invention will be described with reference to FIGS. 33 and 34.

The imaging optical system according to the 17th embodiment of the present invention includes a first lens 1710, a second lens 1720, a third lens 1730, a fourth lens 1740, a fifth lens 1750, and a sixth lens. It includes an optical system including (1760) and a seventh lens (1770), and may further include an infrared cut-off filter (1780), an image sensor (1790), and an aperture (ST).

The lens characteristics of each lens (Radius of curvature, thickness of the lens or distance between lenses, index of refraction, Abbe number, effective aperture radius) Same as Table 33.

side number note radius of curvature thickness or distance refractive index Abesu effective radius S1 first lens 1.51137 0.4703 1.55 56.11 1.07 S2 6.09608 0.02 1.05 S3 second lens 1.75718 0.18945 1.66 20.40 0.99 S4 1.293606 0.387098 0.91 S5 third lens 3.576737 0.1 1.66 20.40 0.90 S6 3.332348 0.200572 0.93 S7 4th lens 8.950524 0.639932 1.55 56.11 1.08 S8 -56.3031 0.349136 1.27 S9 5th lens -8.77353 0.14904 1.65 21.49 1.33 S10 -11.1487 0.057519 1.57 S11 6th lens 4.015255 0.553938 1.65 21.49 1.60 S12 3.782446 0.245098 2.00 S13 7th lens 1.919931 0.511414 1.54 55.71 2.82 S14 1.453313 0.182868 2.58 S15 filter Infinity 0.11 2.89 S16 Infinity 0.517304 2.93 S17 Imaging surface Infinity 0.015 3.26

In a seventeenth embodiment of the present invention, the first lens 1710 has positive refractive power, the first surface of the first lens 1710 is convex in the paraxial region, and the second surface of the first lens 1710 is paraxial. It has a concave shape in the area.

The second lens 1720 has a negative refractive power, the first surface of the second lens 1720 is convex in the paraxial region, and the second surface of the second lens 1720 is concave in the paraxial region.

The third lens 1730 has a negative refractive power, the first surface of the third lens 1730 is convex in the paraxial region, and the second surface of the third lens 1730 is concave in the paraxial region. The aperture ST is disposed between the second lens 1720 and the third lens 1730.

The fourth lens 1740 has positive refractive power, and the first and second surfaces of the fourth lens 1740 have a convex shape in the paraxial region.

The fifth lens 1750 has a negative refractive power, the first surface of the fifth lens 1750 is concave in the paraxial region, and the second surface of the fifth lens 1750 is convex in the paraxial region.

The sixth lens 1760 has a negative refractive power, the first surface of the sixth lens 1760 is convex in the paraxial region, and the second surface of the sixth lens 1760 is concave in the paraxial region.

The seventh lens 1770 has a negative refractive power, the first surface of the seventh lens 1770 is convex in the paraxial region, and the second surface of the seventh lens 1770 is concave in the paraxial region.

Additionally, one inflection point is formed on the first surface of the seventh lens 1770. For example, the first surface of the seventh lens 1770 may be convex in the paraxial region and become concave toward the edge.

Additionally, one inflection point is formed on the second surface of the seventh lens 1770. For example, the second surface of the seventh lens 1770 may be concave in the paraxial region and become convex toward the edge.

Meanwhile, each surface of the first to seventh lenses 1710 to 1770 has an aspheric value as shown in Table 34. For example, both the object-side surface and the image-side surface of the first to seventh lenses 1710 to 1770 are aspherical surfaces.

K A B C D E F G H I S1 -0.0872 0.0085 0.0157 -0.0318 0.0507 -0.0457 0.0214 -0.0042 0 0 S2 25.924 -0.1035 0.4079 -0.9853 1.3538 -1.1103 0.5053 -0.1003 0 0 S3 -2.0252 -0.1329 0.5024 -1.13 1.5305 -1.218 0.5394 -0.1043 0 0 S4 -0.1481 -0.094 0.1762 -0.1747 -0.0182 0.4162 -0.4298 0.1625 0 0 S5 0.829 -0.1421 0.1795 -0.2535 0.4392 -0.4879 0.3327 -0.0954 0 0 S6 6.8952 -0.1777 0.1545 -0.1149 0.1034 -0.051 0.0095 -0.0002 0 0 S7 21.918 -0.0605 0.0485 -0.0459 0.0715 -0.0485 0.0135 -0.0013 0 0 S8 25.736 -0.0682 0.0239 -0.012 0.0083 -0.0027 0.0004 -2E-05 0 0 S9 1.6857 -0.1292 0.2433 -0.407 0.387 -0.2241 0.0741 -0.011 0 0 S10 43.884 -0.107 0.1148 -0.1454 0.095 -0.0303 0.0045 -0.0003 0 0 S11 -52.836 0.0701 -0.2199 0.2058 -0.1343 0.0526 -0.0106 0.0009 0 0 S12 0 -0.0577 -0.027 0.0237 -0.0104 0.0019 0.0002 -0.0001 2E-05 -6E-07 S13 -0.9427 -0.3217 0.0977 -0.0029 -0.0058 0.0017 -0.0002 2E-05 -4E-07 0 S14 -1.0048 -0.2798 0.1282 -0.0461 0.0122 -0.0022 0.0002 -1E-05 4E-07 0

Additionally, the imaging optical system configured in this way may have the aberration characteristics shown in FIG. 34.

An imaging optical system according to an eighteenth embodiment of the present invention will be described with reference to FIGS. 35 and 36.

The imaging optical system according to the 18th embodiment of the present invention includes a first lens 1810, a second lens 1820, a third lens 1830, a fourth lens 1840, a fifth lens 1850, and a sixth lens. It includes an optical system including (1860) and a seventh lens (1870), and may further include an infrared cut-off filter (1880), an image sensor (1890), and an aperture (ST).

The lens characteristics of each lens (Radius of curvature, thickness of the lens or distance between lenses, index of refraction, Abbe number, effective aperture radius) Same as Table 35.

side number note radius of curvature thickness or distance refractive index Abesu effective radius S1 first lens 1.804711 0.576863 1.544 56.114 1.270 S2 5.010949 0.040641 1.230 S3 second lens 4.809505 0.35454 1.544 56.114 1.204 S4 14.18784 0.03 1.158 S5 third lens 3.659167 0.2 1.661 20.350 1.087 S6 2.148667 0.424854 1.050 S7 4th lens 21.5791 0.365358 1.544 56.114 1.050 S8 9.699008 0.061882 1.187 S9 5th lens 6.23061 0.282527 1.639 21.525 1.212 S10 8.496966 0.34789 1.367 S11 6th lens 10.18469 0.58471 1.544 56.114 1.650 S12 -1.51715 0.356227 1.934 S13 7th lens -2.7118 0.3 1.544 56.114 2.303 S14 2.063638 0.164562 2.650 S15 filter Infinity 0.21 1.518 64.197 S16 Infinity 0.629996 S17 Imaging surface Infinity 0.009946

In an eighteenth embodiment of the present invention, the first lens 1810 has positive refractive power, the first surface of the first lens 1810 is convex in the paraxial region, and the second surface of the first lens 1810 is paraxial. It has a concave shape in the area.

The second lens 1820 has a positive refractive power, the first surface of the second lens 1820 is convex in the paraxial region, and the second surface of the second lens 1820 is concave in the paraxial region. The aperture ST is disposed between the first lens 1810 and the second lens 1820.

The third lens 1830 has a negative refractive power, the first surface of the third lens 1830 is convex in the paraxial region, and the second surface of the third lens 1830 is concave in the paraxial region.

The fourth lens 1840 has a negative refractive power, the first surface of the fourth lens 1840 is convex in the paraxial region, and the second surface of the fourth lens 1840 is concave in the paraxial region.

The fifth lens 1850 has a positive refractive power, the first surface of the fifth lens 1850 is convex in the paraxial region, and the second surface of the fifth lens 1850 is concave in the paraxial region.

The sixth lens 1860 has a positive refractive power, and the first and second surfaces of the sixth lens 1860 have a convex shape in the paraxial region.

The seventh lens 1870 has negative refractive power, and the first and second surfaces of the seventh lens 1870 are concave in the paraxial region.

Additionally, two inflection points are formed on the first surface of the seventh lens 1870. For example, the first surface of the seventh lens 1870 may be concave in the paraxial region, convex outside the paraxial region, and become concave toward the edge.

Meanwhile, each surface of the first to seventh lenses 1810 to 1870 has an aspheric value as shown in Table 36. For example, both the object-side surface and the image-side surface of the first to seventh lenses 1810 to 1870 are aspherical surfaces.

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

Additionally, the imaging optical system configured in this way may have the aberration characteristics shown in FIG. 36.

An imaging optical system according to a 19th embodiment of the present invention will be described with reference to FIGS. 37 and 38.

The imaging optical system according to the 19th embodiment of the present invention includes a first lens 1910, a second lens 1920, a third lens 1930, a fourth lens 1940, a fifth lens 1950, and a sixth lens. (1960) and an optical system including a seventh lens (1970), and may further include an infrared cut-off filter (1980), an image sensor (1990), and an aperture (ST).

The lens characteristics of each lens (Radius of curvature, thickness of the lens or distance between lenses, index of refraction, Abbe number, effective aperture radius) Same as Table 37.

side number note radius of curvature thickness or distance refractive index Abesu effective radius S0 Infinity 0 1.973 S1 first lens 1.970126 0.92 1.546 56.114 1.435 S2 6.142172 0.076242 1.327 S3 second lens 5.374346 0.2 1.677 19.238 1.311 S4 3.547167 0.347957 1.231 S5 third lens 10.07708 0.376365 1.546 56.114 1.271 S6 25.51868 0.164004 1.351 S7 4th lens 5.892425 0.2 1.667 20.377 1.359 S8 4.614684 0.254739 1.460 S9 5th lens 5.094005 0.229485 1.619 25.960 1.756 S10 4.38587 0.340204 1.654 S11 6th lens 4.999874 0.771398 1.546 56.11379 2.420 S12 -1.87386 0.389605 2.467 S13 7th lens -2.11718 0.3 1.546 56.11379 3.169 S14 2.83E+00 0.18 3.066 S15 filter Infinity 0.21 1.518272 3.714867 S16 Infinity 0.636756 3.800723 S17 Imaging surface Infinity 0.003244 4.253557

In a 19th embodiment of the present invention, the first lens 1910 has positive refractive power, the first surface of the first lens 1910 is convex in the paraxial region, and the second surface of the first lens 1910 is paraxial. It has a concave shape in the area.

The second lens 1920 has a negative refractive power, the first surface of the second lens 1920 is convex in the paraxial region, and the second surface of the second lens 1920 is concave in the paraxial region. The aperture ST is disposed between the first lens 1910 and the second lens 1920.

The third lens 1930 has a positive refractive power, the first surface of the third lens 1930 is convex in the paraxial region, and the second surface of the third lens 1930 is concave in the paraxial region.

The fourth lens 1940 has a negative refractive power, the first surface of the fourth lens 1940 is convex in the paraxial region, and the second surface of the fourth lens 1940 is concave in the paraxial region.

The fifth lens 1950 has a negative refractive power, the first surface of the fifth lens 1950 is convex in the paraxial region, and the second surface of the fifth lens 1950 is concave in the paraxial region.

The sixth lens 1960 has positive refractive power, and the first and second surfaces of the sixth lens 1960 have a convex shape in the paraxial region.

The seventh lens 1970 has negative refractive power, and the first and second surfaces of the seventh lens 1970 are concave in the paraxial region.

Additionally, two inflection points are formed on the first surface of the seventh lens 1970. For example, the first surface of the seventh lens 1970 may be concave in the paraxial region, convex outside the paraxial region, and become concave toward the edge.

Additionally, one inflection point is formed on the second surface of the seventh lens 1970. For example, the second surface of the seventh lens 1970 may be concave in the paraxial region and become convex toward the edge.

Meanwhile, each surface of the first lens 1910 to the seventh lens 1970 has an aspheric value as shown in Table 38. For example, both the object-side surface and the image-side surface of the first to seventh lenses 1910 to 1970 are aspherical surfaces.

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

Additionally, the imaging optical system configured in this way may have the aberration characteristics shown in FIG. 38.

An imaging optical system according to a twentieth embodiment of the present invention will be described with reference to FIGS. 39 and 40.

The imaging optical system according to the twentieth embodiment of the present invention includes a first lens (2010), a second lens (2020), a third lens (2030), a fourth lens (2040), a fifth lens (2050), and a sixth lens. It includes an optical system including (2060) and a seventh lens (2070), and may further include an infrared cut-off filter (2080), an image sensor (2090), and an aperture (ST).

The lens characteristics of each lens (Radius of curvature, thickness of the lens or distance between lenses, index of refraction, Abbe number, effective aperture radius) Same as Table 39.

side number note radius of curvature thickness or distance refractive index Abesu effective radius S1 first lens 2.138 0.461 1.546 56.114 1.360 S2 2.721 0.042 1.346 S3 second lens 2.772 0.600 1.546 56.114 1.322 S4 33.838 0.025 1.253 S5 third lens 5.906 0.230 1.679 19.236 1.199 S6 2.958 0.315 1.193 S7 4th lens 6.706 0.516 1.546 56.114 1.246 S8 15.620 0.488 1.350 S9 5th lens 9.448 0.391 1.679 19.236 1.600 S10 5.267 0.132 2.100 S11 6th lens 2.490 0.453 1.546 56.114 1.951 S12 2.606 0.150 2.440 S13 7th lens 1.429 0.507 1.546 56.114 2.691 S14 1.286 0.404 2.841 S15 filter Infinity 0.210 1.518 64.197 3.245 S16 Infinity 0.677 3.316 S17 Imaging surface Infinity 0.015 3.733

In a twentieth embodiment of the present invention, the first lens 2010 has positive refractive power, the first surface of the first lens 2010 is convex in the paraxial region, and the second surface of the first lens 2010 is paraxial. It has a concave shape in the area.

The second lens 2020 has a positive refractive power, the first surface of the second lens 2020 is convex in the paraxial region, and the second surface of the second lens 2020 is concave in the paraxial region.

The third lens 2030 has a negative refractive power, the first surface of the third lens 2030 is convex in the paraxial region, and the second surface of the third lens 2030 is concave in the paraxial region. The aperture ST is disposed between the second lens 2020 and the third lens 2030.

The fourth lens 2040 has a positive refractive power, the first surface of the fourth lens 2040 is convex in the paraxial region, and the second surface of the fourth lens 2040 is concave in the paraxial region.

The fifth lens 2050 has a negative refractive power, the first surface of the fifth lens 2050 is convex in the paraxial region, and the second surface of the fifth lens 2050 is concave in the paraxial region.

The sixth lens 2060 has a positive refractive power, the first surface of the sixth lens 2060 is convex in the paraxial region, and the second surface of the sixth lens 2060 is concave in the paraxial region.

The seventh lens 2070 has a positive refractive power, the first surface of the seventh lens 2070 is convex in the paraxial region, and the second surface of the seventh lens 2070 is concave in the paraxial region.

Additionally, two inflection points are formed on the first surface of the seventh lens 2070. For example, the first surface of the seventh lens 2070 may be convex in the paraxial region, concave outside the paraxial region, and become convex toward the edge.

Additionally, one inflection point is formed on the second surface of the seventh lens 2070. For example, the second surface of the seventh lens 2070 may be concave in the paraxial region and become convex toward the edge.

Meanwhile, each surface of the first to seventh lenses 2010 to 2070 has an aspheric value as shown in Table 40. For example, both the object-side surface and the image-side surface of the first to seventh lenses 2010 to 2070 are aspherical surfaces.

K A B C D E F G H J S1 -0.9855 -0.0214 0.04393 -0.0925 0.06334 0.0064 -0.0479 0.03721 -0.0126 0.00162 S2 -12.849 0.02342 -0.0441 -0.1546 -0.0352 0.70959 -1.0004 0.6322 -0.1959 0.02423 S3 -1.1002 -0.0276 0.08535 -0.4269 0.40108 0.3152 -0.8128 0.59947 -0.2021 0.02657 S4 -7.367 -0.1684 1.46774 -5.7804 12.6396 -16.742 13.7341 -6.8183 1.8769 -0.22 S5 9.31872 -0.2245 1.5162 -5.8569 13.0587 -17.823 15.1212 -7.7778 2.22306 -0.2714 S6 1.62652 -0.0856 0.27037 -0.9806 2.41503 -3.7649 3.67767 -2.1905 0.73267 -0.1058 S7 -4.7815 0.02644 -0.5178 1.91305 -4.2532 5.86667 -5.0521 2.6239 -0.7455 0.08861 S8 5.85918 -0.0338 -0.0317 0.00973 0.02909 -0.0644 0.06116 -0.0311 0.00835 -0.0008 S9 -43.521 -0.002 -0.0021 0.04363 -0.1236 0.13892 -0.0871 0.03113 -0.0059 0.00048 S10 -12.729 -0.0608 0.02855 0.0052 -0.0244 0.01821 -0.0074 0.00175 -0.0002 1.2E-05 S11 -16.199 0.1227 -0.2762 0.2845 -0.2154 0.1043 -0.0311 0.00563 -0.0006 2.5E-05 S12 0.02424 -0.0902 0.05795 -0.0568 0.02897 -0.0088 0.00172 -0.0002 1.6E-05 -5E-07 S13 -0.8394 -0.4114 0.2062 -0.0647 0.01374 -0.0021 0.00025 -2E-05 1.5E-06 -5E-08 S14 -1.3743 -0.2983 0.17337 -0.0777 0.0258 -0.006 0.00091 -9E-05 4.7E-06 -1E-07

Additionally, the imaging optical system configured in this way may have the aberration characteristics shown in FIG. 40.

An imaging optical system according to a twenty-first embodiment of the present invention will be described with reference to FIGS. 41 and 42.

The imaging optical system according to the 21st embodiment of the present invention includes a first lens 2110, a second lens 2120, a third lens 2130, a fourth lens 2140, a fifth lens 2150, and a sixth lens. It includes an optical system including (2160) and a seventh lens (2170), and may further include an infrared cut-off filter (2180), an image sensor (2190), and an aperture (ST).

The lens characteristics of each lens (Radius of curvature, thickness of the lens or distance between lenses, index of refraction, Abbe number, effective aperture radius) Same as Table 41.

side number note radius of curvature thickness or distance refractive index Abesu effective radius S1 first lens 2.288893618 0.4894782 1.546 56.114 1.564 S2 2.875124177 0.1224876 1.556 S3 second lens 3.193059813 0.5641206 1.546 56.114 1.519 S4 102.3291196 0.025 1.495 S5 third lens 9.029101492 0.23 1.679 19.236 1.430 S6 4.032325022 0.439361 1.411 S7 4th lens 6.62040371 0.3812709 1.546 56.114 1.543 S8 14.3245359 0.5329547 1.563 S9 5th lens 5.417509882 0.4126831 1.679 19.236 1.840 S10 3.52467008 0.2029389 2.415 S11 6th lens 2.389892022 0.5978277 1.546 56.114 2.201 S12 4.476954327 0.396178 2.763 S13 7th lens 2.325640184 0.5183889 1.546 56.114 3.015 S14 1.412164877 0.2273106 3.288 S15 filter Infinity 0.21 1.518 64.197 3.711 S16 Infinity 0.6349998 3.786 S17 Imaging surface Infinity 0.015 4.203

In a twenty-first embodiment of the present invention, the first lens 2110 has positive refractive power, the first surface of the first lens 2110 is convex in the paraxial region, and the second surface of the first lens 2110 is paraxial. It has a concave shape in the area.

The second lens 2120 has a positive refractive power, the first surface of the second lens 2120 is convex in the paraxial region, and the second surface of the second lens 2120 is concave in the paraxial region.

The third lens 2130 has a negative refractive power, the first surface of the third lens 2130 is convex in the paraxial region, and the second surface of the third lens 2130 is concave in the paraxial region. The aperture ST is disposed between the second lens 2120 and the third lens 2130.

The fourth lens 2140 has a positive refractive power, the first surface of the fourth lens 2140 is convex in the paraxial region, and the second surface of the fourth lens 2140 is concave in the paraxial region.

The fifth lens 2150 has a negative refractive power, the first surface of the fifth lens 2150 is convex in the paraxial region, and the second surface of the fifth lens 2150 is concave in the paraxial region.

The sixth lens 2160 has a positive refractive power, the first surface of the sixth lens 2160 is convex in the paraxial region, and the second surface of the sixth lens 2160 is concave in the paraxial region.

The seventh lens 2170 has a negative refractive power, the first surface of the seventh lens 2170 is convex in the paraxial region, and the second surface of the seventh lens 2170 is concave in the paraxial region.

Additionally, one inflection point is formed on the first surface of the seventh lens 2170. For example, the first surface of the seventh lens 2170 may be convex in the paraxial region and become concave toward the edge.

Additionally, one inflection point is formed on the second surface of the seventh lens 2170. For example, the second surface of the seventh lens 2170 may be concave in the paraxial region and become convex toward the edge.

Meanwhile, each surface of the first to seventh lenses 2110 to 2170 has an aspheric value as shown in Table 42. For example, both the object-side surface and the image-side surface of the first to seventh lenses 2110 to 2170 are aspherical surfaces.

K A B C D E F G H J S1 -One -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

Additionally, the imaging optical system configured in this way may have the aberration characteristics shown in FIG. 42.

An imaging optical system according to a twenty-second embodiment of the present invention will be described with reference to FIGS. 43 and 44.

The imaging optical system according to the 22nd embodiment of the present invention includes a first lens 2210, a second lens 2220, a third lens 2230, a fourth lens 2240, a fifth lens 2250, and a sixth lens. It may include an optical system including (2260) and a seventh lens (2270), and may further include an infrared cut-off filter (2280), an image sensor (2290), and an aperture (ST).

The lens characteristics of each lens (Radius of curvature, thickness of the lens or distance between lenses, index of refraction, Abbe number, effective aperture radius) Same as Table 43.

side number note radius of curvature thickness or distance refractive index Abesu effective radius S1 first lens 1.747305824 0.6964434 1.546 56.114 1.280 S2 9.408357314 0.025 1.247 S3 second lens 2.976586304 0.23 1.667 20.353 1.150 S4 1.956424017 0.3428009 1.007 S5 third lens 16.8676436 0.2300239 1.667 20.353 1.032 S6 16.01257049 0.0294424 1.089 S7 4th lens 7.314351738 0.356959 1.546 56.114 1.130 S8 17.39191974 0.3707783 1.228 S9 5th lens 11.56172447 0.3608202 1.656 21.525 1.317 S10 6.918405514 0.2917084 1.657 S11 6th lens -97.16346173 0.5907913 1.656 21.525 1.878 S12 17.27666898 0.0301253 2.338 S13 7th lens 1.932241094 0.8257708 1.546 56.114 2.961 S14 1.739016534 0.2207138 3.015 S15 filter Infinity 0.21 1.518 64.197 3.305 S16 Infinity 0.6356346 3.375 S17 Imaging surface Infinity 0.0142573 3.731

In a twenty-second embodiment of the present invention, the first lens 2210 has positive refractive power, the first surface of the first lens 2210 is convex in the paraxial region, and the second surface of the first lens 2210 is paraxial. It has a concave shape in the area.

The second lens 2220 has a negative refractive power, the first surface of the second lens 2220 is convex in the paraxial region, and the second surface of the second lens 2220 is concave in the paraxial region.

The third lens 2230 has a negative refractive power, the first surface of the third lens 2230 is convex in the paraxial region, and the second surface of the third lens 2230 is concave in the paraxial region. The aperture ST is disposed between the second lens 2220 and the third lens 2230.

The fourth lens 2240 has a positive refractive power, the first surface of the fourth lens 2240 is convex in the paraxial region, and the second surface of the fourth lens 2240 is concave in the paraxial region.

The fifth lens 2250 has a negative refractive power, the first surface of the fifth lens 2250 is convex in the paraxial region, and the second surface of the fifth lens 2250 is concave in the paraxial region.

The sixth lens 2260 has negative refractive power, and the first and second surfaces of the sixth lens 2260 are concave in the paraxial region.

The seventh lens 2270 has a positive refractive power, the first surface of the seventh lens 2270 is convex in the paraxial region, and the second surface of the seventh lens 2270 is concave in the paraxial region.

Additionally, two inflection points are formed on the first surface of the seventh lens 2270. For example, the first surface of the seventh lens 2270 may be convex in the paraxial region, concave outside the paraxial region, and become convex toward the edge.

Additionally, one inflection point is formed on the second surface of the seventh lens 2270. For example, the second surface of the seventh lens 2270 may be concave in the paraxial region and become convex toward the edge.

Meanwhile, each surface of the first to seventh lenses 2210 to 2270 has an aspheric value as shown in Table 44. For example, both the object-side surface and the image-side surface of the first to seventh lenses 2210 to 2270 are aspherical surfaces.

K A B C D E F G H J S1 -0.3029 0.00034 0.02484 -0.0645 0.08868 -0.0757 0.0373 -0.0109 0.00139 0 S2 0.99973 -0.0385 0.05948 -0.0639 0.00521 0.0552 -0.0624 0.02956 -0.0054 0 S3 -1.759 -0.0559 0.07693 -0.084 0.09591 -0.0711 0.03087 -0.0026 -0.0012 0 S4 -0.2233 -0.022 -0.0153 0.13577 -0.2648 0.33105 -0.2167 0.05099 0.00976 0 S5 -0.8179 -0.0092 -0.0103 -0.1607 0.63034 -1.1881 1.27457 -0.7449 0.18468 0 S6 -0.0005 0.01997 -0.1312 0.11419 -0.0014 0.0632 -0.1761 0.13356 -0.0335 0 S7 -31.717 0.02656 -0.0935 -0.0104 0.2126 -0.2049 0.0541 0.02004 -0.0098 0 S8 -1.0151 -0.0315 0.02884 -0.0714 0.09345 -0.1394 0.17678 -0.1344 0.05241 -0.0076 S9 0.382 -0.1094 0.03271 -0.0826 0.21377 -0.3162 0.24272 -0.0962 0.01564 0 S10 -27.524 -0.0394 -0.117 0.16282 -0.1238 0.05513 -0.0144 0.00227 -0.0002 0 S11 23.2031 0.18019 -0.2793 0.22076 -0.1258 0.0475 -0.0113 0.00159 -0.0001 0 S12 -49.948 0.03358 -0.0362 0.00983 -0.0011 -0.0001 7.6E-05 -1E-05 6.1E-07 0 S13 -1.8504 -0.2437 0.10759 -0.031 0.00661 -0.001 0.0001 -6E-06 1.5E-07 0 S14 -0.8299 -0.173 0.06293 -0.0196 0.00438 -0.0006 5.8E-05 -3E-06 6.1E-08 0

Additionally, the imaging optical system configured in this way may have the aberration characteristics shown in FIG. 44.

An imaging optical system according to a twenty-third embodiment of the present invention will be described with reference to FIGS. 45 and 46.

The imaging optical system according to the 23rd embodiment of the present invention includes a first lens 2310, a second lens 2320, a third lens 2330, a fourth lens 2340, a fifth lens 2350, and a sixth lens. It includes an optical system including (2360) and a seventh lens (2370), and may further include an infrared cut-off filter (2380), an image sensor (2390), and an aperture (ST).

The lens characteristics of each lens (Radius of curvature, thickness of the lens or distance between lenses, index of refraction, Abbe number, effective aperture radius) Same as Table 45.

side number note radius of curvature thickness or distance refractive index Abesu effective radius S1 first lens 1.76028791 0.6171815 1.546 56.114 1.100 S2 14.12333348 0.025 1.040 S3 second lens 5.834118934 0.23 1.667 20.353 1.011 S4 3.122671446 0.3733379 0.919 S5 third lens -49.94173366 0.3798697 1.546 56.114 0.995 S6 -15.18699611 0.1809039 1.096 S7 4th lens 23.36800299 0.3031664 1.667 20.353 1.124 S8 12.20982926 0.3354305 1.309 S9 5th lens -4.394771982 0.4728905 1.546 56.114 1.471 S10 -1.598299305 0.025 1.698 S11 6th lens -6.081499124 0.5446656 1.546 56.114 1.822 S12 -3.014533539 0.2724323 2.192 S13 7th lens -6.149442968 0.42237 1.546 56.114 2.462 S14 1.636694252 0.1933361 2.880 S15 filter Infinity 0.21 1.518 64.197 3.223 S16 Infinity 0.6445349 3.300 S17 Imaging surface Infinity 0.0098807 3.728

In a twenty-third embodiment of the present invention, the first lens 2310 has positive refractive power, the first surface of the first lens 2310 is convex in the paraxial region, and the second surface of the first lens 2310 is paraxial. It has a concave shape in the area.

The second lens 2320 has a negative refractive power, the first surface of the second lens 2320 is convex in the paraxial region, and the second surface of the second lens 2320 is concave in the paraxial region.

The third lens 2330 has a positive refractive power, the first surface of the third lens 2330 is concave in the paraxial region, and the second surface of the third lens 2330 is convex in the paraxial region. The aperture ST is disposed between the second lens 2320 and the third lens 2330.

The fourth lens 2340 has a negative refractive power, the first surface of the fourth lens 2340 is convex in the paraxial region, and the second surface of the fourth lens 2340 is concave in the paraxial region.

The fifth lens 2350 has a positive refractive power, the first surface of the fifth lens 2350 is concave in the paraxial region, and the second surface of the fifth lens 2350 is convex in the paraxial region.

The sixth lens 2360 has a positive refractive power, the first surface of the sixth lens 2360 is concave in the paraxial region, and the second surface of the sixth lens 2360 is convex in the paraxial region.

The seventh lens 2370 has negative refractive power, and the first and second surfaces of the seventh lens 2370 are concave in the paraxial region.

Additionally, one inflection point is formed on the second surface of the seventh lens 2370. For example, the second surface of the seventh lens 2370 may be concave in the paraxial region and become convex toward the edge.

Meanwhile, each surface of the first to seventh lenses 2310 to 2370 has an aspheric value as shown in Table 46. For example, both the object-side surface and the image-side surface of the first to seventh lenses 2310 to 2370 are aspherical surfaces.

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

Additionally, the imaging optical system configured in this way may have the aberration characteristics shown in FIG. 46.

An imaging optical system according to a twenty-fourth embodiment of the present invention will be described with reference to FIGS. 47 and 48.

The imaging optical system according to the 24th embodiment of the present invention includes a first lens 2410, a second lens 2420, a third lens 2430, a fourth lens 2440, a fifth lens 2450, and a sixth lens. It includes an optical system including (2460) and a seventh lens (2470), and may further include an infrared cut-off filter (2480), an image sensor (2490), and an aperture (ST).

The lens characteristics of each lens (Radius of curvature, thickness of the lens or distance between lenses, index of refraction, Abbe number, effective aperture radius) Same as Table 47.

side number note radius of curvature thickness or distance refractive index Abesu effective radius S1 first lens 1.882954913 0.5871918 1.546 56.114 1.050 S2 18.07331507 0.0491976 0.962 S3 second lens 4.599463678 0.23 1.667 20.353 0.934 S4 2.546377474 0.3929389 0.837 S5 third lens -21.75460448 0.2744632 1.546 56.114 1.100 S6 -13.51443301 0.0611157 1.106 S7 4th lens 25.33486158 0.2655293 1.546 56.114 1.200 S8 25.33602848 0.3710469 1.285 S9 5th lens 9.468188048 0.3930453 1.656 21.525 1.500 S10 5.10288098 0.3790363 1.754 S11 6th lens 6.416223875 0.888499 1.546 56.114 2.041 S12 6.352062001 0.0460253 2.631 S13 7th lens 1.966539749 0.8854198 1.536 55.656 3.050 S14 1.769884599 0.3097825 3.456 S15 filter Infinity 0.21 1.518 64.197 3.768 S16 Infinity 0.6537285 3.829 S17 Imaging surface Infinity -0.003728 4.129

In a twenty-fourth embodiment of the present invention, the first lens 2410 has positive refractive power, the first surface of the first lens 2410 is convex in the paraxial region, and the second surface of the first lens 2410 is paraxial. It has a concave shape in the area.

The second lens 2420 has a negative refractive power, the first surface of the second lens 2420 is convex in the paraxial region, and the second surface of the second lens 2420 is concave in the paraxial region.

The third lens 2430 has a positive refractive power, the first surface of the third lens 2430 is concave in the paraxial region, and the second surface of the third lens 2430 is convex in the paraxial region. The aperture ST is disposed between the second lens 2420 and the third lens 2430.

The fourth lens 2440 has a positive refractive power, the first surface of the fourth lens 2440 is convex in the paraxial region, and the second surface of the fourth lens 2440 is concave in the paraxial region.

The fifth lens 2450 has a negative refractive power, the first surface of the fifth lens 2450 is convex in the paraxial region, and the second surface of the fifth lens 2450 is concave in the paraxial region.

The sixth lens 2460 has a positive refractive power, the first surface of the sixth lens 2460 is convex in the paraxial region, and the second surface of the sixth lens 2460 is concave in the paraxial region.

The seventh lens 2470 has a positive refractive power, the first surface of the seventh lens 2470 is convex in the paraxial region, and the second surface of the seventh lens 2470 is concave in the paraxial region.

Additionally, two inflection points are formed on the first surface of the seventh lens 2470. For example, the first surface of the seventh lens 2470 may be convex in the paraxial region, concave outside the paraxial region, and become convex toward the edge.

Additionally, one inflection point is formed on the second surface of the seventh lens 2470. For example, the second surface of the seventh lens 2470 may be concave in the paraxial region and become convex toward the edge.

Meanwhile, each surface of the first to seventh lenses 2410 to 2470 has an aspheric value as shown in Table 48. For example, both the object-side surface and the image-side surface of the first to seventh lenses 2410 to 2470 are aspherical surfaces.

K A B C D E F G H J S1 -0.1525 0.00346 0.00541 -0.0238 0.05874 -0.0925 0.08078 -0.0376 0.00687 0 S2 -36.188 -0.0554 0.19103 -0.4954 0.90918 -1.1194 0.84898 -0.3546 0.06168 0 S3 -0.1164 -0.0883 0.22642 -0.5273 0.9947 -1.274 1.01042 -0.4343 0.07596 0 S4 0.3326 -0.0462 0.09702 -0.2316 0.5455 -0.848 0.78539 -0.3759 0.07082 0 S5 51.7577 -0.0119 -0.0911 0.36173 -0.9067 1.38454 -1.3014 0.68351 -0.1493 0 S6 42.1637 0.0924 -0.5269 1.35579 -2.2584 2.50931 -1.8107 0.76109 -0.139 0 S7 -4.7579 0.13357 -0.5938 1.26101 -1.8115 1.7924 -1.1666 0.44267 -0.0728 0 S8 -3.4393 0.04714 -0.1842 0.28859 -0.3575 0.32734 -0.1971 0.06695 -0.0093 0 S9 -8.5449 -0.0502 -0.0588 0.15989 -0.2027 0.13981 -0.0542 0.01046 -0.0007 0 S10 -18.064 -0.044 -0.0734 0.14254 -0.1303 0.06906 -0.0217 0.00378 -0.0003 0 S11 -4.6497 0.06328 -0.1193 0.08822 -0.0426 0.01348 -0.0028 0.00037 -2E-05 0 S12 -50 0.03403 -0.0497 0.02457 -0.0072 0.00126 -0.0001 6.9E-06 -2E-07 0 S13 -2.4291 -0.1201 0.01667 0.00224 -0.0009 0.00011 -6E-06 1.3E-07 8.8E-10 0 S14 -1.0032 -0.1111 0.02485 -0.0032 -0.0001 0.00013 -2E-05 1.9E-06 -8E-08 1.4E-09

Additionally, the imaging optical system configured in this way may have the aberration characteristics shown in FIG. 48.

An imaging optical system according to a twenty-fifth embodiment of the present invention will be described with reference to FIGS. 49 and 50.

The imaging optical system according to the 25th embodiment of the present invention includes a first lens 2510, a second lens 2520, a third lens 2530, a fourth lens 2540, a fifth lens 2550, and a sixth lens. It may include an optical system including (2560) and a seventh lens (2570), and may further include an infrared cut-off filter (2580), an image sensor (2590), and an aperture (ST).

The lens characteristics of each lens (Radius of curvature, thickness of the lens or distance between lenses, index of refraction, Abbe number, effective aperture radius) Same as Table 49.

side number note radius of curvature thickness or distance refractive index Abesu effective radius S1 first lens 1.898698558 0.6486367 1.546 56.114 1.260 S2 7.35678597 0.025 1.216 S3 second lens 3.87893073 0.23 1.667 20.353 1.161 S4 2.762008891 0.3408168 1.053 S5 third lens -50.1241934 0.2818618 1.546 56.114 1.120 S6 -14.98893663 0.0597334 1.158 S7 4th lens 12.04981408 0.269789 1.546 56.114 1.220 S8 12.56574443 0.2918619 1.320 S9 5th lens 9.592575983 0.35 1.667 20.353 1.520 S10 5.27478585 0.3343756 1.762 S11 6th lens 6.87350249 0.8484117 1.546 56.114 2.052 S12 7.493319886 0.0591105 2.641 S13 7th lens 2.033708385 0.8835732 1.536 55.656 3.070 S14 1.843638917 0.3047846 3.425 S15 filter Infinity 0.21 1.518 64.197 3.764 S16 Infinity 0.6441161 3.825 S17 Imaging surface Infinity 0.015 4.134

In a twenty-fifth embodiment of the present invention, the first lens 2510 has positive refractive power, the first surface of the first lens 2510 is convex in the paraxial region, and the second surface of the first lens 2510 is paraxial. It has a concave shape in the area.

The second lens 2520 has a negative refractive power, the first surface of the second lens 2520 is convex in the paraxial region, and the second surface of the second lens 2520 is concave in the paraxial region.

The third lens 2530 has a positive refractive power, the first surface of the third lens 2530 is concave in the paraxial region, and the second surface of the third lens 2530 is convex in the paraxial region. The aperture ST is disposed between the second lens 2520 and the third lens 2530.

The fourth lens 2540 has a positive refractive power, the first surface of the fourth lens 2540 is convex in the paraxial region, and the second surface of the fourth lens 2540 is concave in the paraxial region.

The fifth lens 2550 has a negative refractive power, the first surface of the fifth lens 2550 is convex in the paraxial region, and the second surface of the fifth lens 2550 is concave in the paraxial region.

The sixth lens 2560 has a positive refractive power, the first surface of the sixth lens 2560 is convex in the paraxial region, and the second surface of the sixth lens 2560 is concave in the paraxial region.

The seventh lens 2570 has positive refractive power, the first surface of the seventh lens 2570 is convex in the paraxial region, and the second surface of the seventh lens 2570 is concave in the paraxial region.

Additionally, two inflection points are formed on the first surface of the seventh lens 2570. For example, the first surface of the seventh lens 2570 may be convex in the paraxial region, concave outside the paraxial region, and become convex toward the edge.

Additionally, one inflection point is formed on the second surface of the seventh lens 2570. For example, the second surface of the seventh lens 2570 may be concave in the paraxial region and become convex toward the edge.

Meanwhile, each surface of the first to seventh lenses 2510 to 2570 has an aspheric value as shown in Table 50. For example, both the object-side surface and the image-side surface of the first to seventh lenses 2510 to 2570 are aspherical surfaces.

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

Additionally, the imaging optical system configured in this way may have the aberration characteristics shown in FIG. 50.

Example f TTL SL Fno Img H.T. FOV One 3.661 4.200 3.530 1.99 3.261 82.10 2 4.824 6.000 5.071 1.51 4.000 78.10 3 4.283 5.190 3.939 1.59 3.690 79.82 4 4.256 5.190 3.931 1.58 3.680 80.22 5 3.950 4.819 3.650 1.58 3.250 77.47 6 4.350 5.300 4.917 1.58 3.384 79.58 7 4.295 5.200 4.820 1.58 3.700 80.40 8 4.280 5.100 4.369 1.71 3.535 77.84 9 4.320 5.307 4.632 1.69 3.535 77.34 10 4.144 5.026 4.299 1.58 3.261 75.78 11 4.401 5.300 4.142 1.69 3.728 79.31 12 4.570 5.500 4.321 1.76 3.728 77.22 13 4.100 5.100 4.395 1.67 3.535 80.20 14 4.447 5.144 4.894 2.07 3.528 75.63 15 4.400 5.200 4.576 1.81 3.261 72.55 16 3.994 5.125 4.484 1.57 3.261 77.38 17 3.920 4.700 4.020 1.83 3.261 78.33 18 4.020 4.940 3.938 1.58 3.226 76.00 19 4.589 5.600 4.680 1.60 4.250 84.74 20 4.588 5.617 4.489 1.69 3.728 76.90 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 4.302 5.240 4.368 1.95 3.728 80.46 24 4.966 5.993 5.127 2.36 4.128 78.45 25 4.667 5.797 4.893 1.85 4.128 81.80

In Table 51, f is the total focal length of the imaging optical system, TTL is the optical axis distance from the object side of the first lens to the imaging surface of the image sensor, SL is the optical axis distance from the aperture to the imaging surface of the image sensor, Fno is a constant representing the brightness of the imaging optical system, IMG HT is half the diagonal length of the imaging surface of the image sensor, and FOV is the angle of view of the imaging optical system.

Example f1 f2 f3 f4 f5 f6 f7 One 3.280 -8.812 14.304 88.905 -14.053 45.800 -19.470 2 4.756 -12.434 26.345 -55.14 -12.854 2.765 -2.459 3 9.589 4.541 -6.987 17555491.98 558.700 -30.322 1998.195 4 9.060 4.692 -7.025 -4861.622 80.126 -24.191 1985.391 5 8.409 4.355 -6.520 -4512.292 74.369 -22.452 1842.731 6 -64.233 3.248 -7.428 -43.722 52.425 3.010 -2.424 7 -93.911 3.277 -7.309 -50.652 51.954 3.091 -2.480 8 3.596 -7.349 -1245.238 15.657 -19.723 2.662 -2.171 9 3.666 -7.618 -10000 13.763 -14.934 2.598 -2.164 10 3.570 -7.440 -291.941 16.218 -22.370 2.450 -2.041 11 9.952 4.985 -9.042 -60.959 28.461 -19.130 -36.205 12 9.429 5.081 -7.743 123.361 85.209 -19.468 -153.686 13 3.799 -7.729 19.693 39.540 23.018 3.741 -2.251 14 3.626 -6.978 10.551 125.381 -28.155 -367.720 -9.031 15 4.290 -10.606 30.978 14.871 -21.133 3.784 -2.465 16 5.677 -73.551 -122.716 15.510 207.375 3.799 -2.466 17 3.540 -8.760 -87.360 14.180 -64.180 -799.990 -18.040 18 4.858 13.152 -8.241 -32.625 34.583 2.462 -2.100 19 4.929 -16.125 30.244 -34.061 -58.155 2.600 -2.172 20 14.270 5.487 -9.006 21.072 -18.204 43.002 92.362 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 3.620 -10.428 39.821 -38.762 4.342 10.303 -2.323 24 3.802 -8.955 64.595 12384.769 -17.503 299.093 57.797 25 4.499 -15.674 39.058 453.779 -18.160 102.612 59.134

In Table 52, 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, and f5 is the focal length of the fifth lens. is the focal length, f6 is the focal length of the sixth lens, and f7 is the focal length of the seventh lens.

Example L1edgeT L2edgeT L3edgeT L4edgeT L5edgeT L6edgeT L7edgeT One 0.201 0.208 0.200 0.200 0.241 0.242 0.338 2 0.271 0.346 0.259 0.354 0.283 0.265 0.818 3 0.251 0.283 0.360 0.220 0.290 0.328 0.391 4 0.251 0.280 0.359 0.218 0.293 0.356 0.364 5 0.233 0.259 0.333 0.203 0.272 0.330 0.376 6 0.220 0.270 0.348 0.224 0.259 0.269 0.437 7 0.219 0.266 0.352 0.227 0.241 0.269 0.394 8 0.222 0.377 0.235 0.240 0.189 0.260 0.323 9 0.163 0.363 0.211 0.245 0.372 0.231 0.615 10 0.163 0.350 0.257 0.281 0.193 0.260 0.446 11 0.257 0.255 0.340 0.276 0.365 0.307 0.278 12 0.294 0.250 0.368 0.296 0.447 0.268 0.429 13 0.255 0.385 0.227 0.338 0.222 0.349 0.492 14 0.269 0.308 0.190 0.230 0.410 0.714 0.300 15 0.205 0.407 0.201 0.333 0.278 0.348 0.815 16 0.218 0.347 0.211 0.259 0.277 0.251 0.950 17 0.100 0.280 0.120 0.420 0.160 0.410 0.580 18 0.212 0.210 0.351 0.213 0.236 0.357 0.445 19 0.373 0.329 0.222 0.285 0.186 0.221 0.456 20 0.250 0.342 0.384 0.409 0.295 0.727 0.283 21 0.247 0.240 0.413 0.254 0.352 0.632 0.553 22 0.231 0.289 0.255 0.254 0.360 0.476 0.658 23 0.252 0.293 0.238 0.374 0.258 0.415 0.686 24 0.293 0.298 0.252 0.251 0.409 0.715 0.678 25 0.246 0.280 0.254 0.273 0.356 0.630 0.692

In Table 53, L1edgeT is the thickness of the edge (edge) of the first lens, L2edgeT is the thickness of the edge (edge) of the second lens, L3edgeT is the thickness of the edge (edge) of the third lens, and L4edgeT is the thickness of the edge (edge) of the fourth lens. L5edgeT is the thickness of the edge of the 5th lens, L6edgeT is the thickness of the edge of the 6th lens, and L7edgeT is the thickness of the edge of the 7th lens. am.

Example L5S1 sag L5S2 sag Yc71P1 Yc71P2 Yc72P1 Yc72P2 One -0.351 -0.325 0.519 0.475 0.615 - 2 -0.447 -0.533 1.324 - 0.931 - 3 0.107 0.158 0.597 0.698 0.692 - 4 0.153 0.181 0.610 0.712 0.719 - 5 0.200 0.202 0.568 0.670 0.667 - 6 0.115 0.139 0.930 - 0.811 - 7 0.108 0.144 0.863 - 0.793 - 8 -0.466 -0.526 2.933 - 4.142 - 9 -0.439 -0.510 3.086 - 4.417 - 10 -0.453 -0.501 2.843 - 4.129 - 11 0.210 0.245 0.569 0.641 0.670 - 12 0.202 0.177 0.603 0.704 0.717 - 13 -0.441 -0.501 0.825 0.575 0.807 0.528 14 -0.261 -0.263 0.473 - 0.631 - 15 -0.485 -0.407 0.890 - 0.920 - 16 -0.479 -0.422 doesn't exist - 0.781 - 17 -0.440 -0.450 0.730 - 1.120 - 18 -0.301 -0.528 0.849 - 0.718 - 19 0.334 0.378 0.719 - 0.402 0.845 20 0.221 0.318 0.570 0.452 0.633 - 21 0.199 0.269 0.603 - 0.797 - 22 0.280 0.281 0.883 0.915 0.988 - 23 0.276 0.509 - - 0.968 - 24 0.092 0.103 0.955 1.103 1.128 - 25 0.179 0.173 0.964 1.114 1.130 -

In Table 54, L5S1 sag is the sag value at the end of the optical section of the first side of the fifth lens, L5S2 sag is the sag value at the end of the optical section of the second side of the fifth lens, and Yc71P1 is the sag value of the seventh lens. Yc71P2 is the thickness at the first inflection point of the first surface, Yc71P2 is the thickness at the second inflection point of the first surface of the seventh lens, and Yc72P1 is the thickness at the third inflection point of the second surface of the seventh lens.

Example S1d S2d S3d S4d S5d S6d S7d One 1.73 1.55 1.65 2.07 2.95 4.28 - 2 2.84 2.53 2.87 3.35 4.18 6.11 - 3 1.35 1.23 1.14 1.53 2.07 2.78 - 4 1.33 1.22 1.2 1.58 2.05 2.69 - 5 1.24 1.15 1.03 1.48 1.9 2.46 - 6 1.34 1.23 1.03 1.5 1.98 2.66 - 7 1.33 1.22 1.05 1.5 2.01 2.7 - 8 2.31 2.16 2.54 2.94 4.06 4.84 5.12 9 2.44 2.21 2.56 2.87 4.11 4.8 5.14 10 2.47 2.21 2.53 2.79 3.78 4.51 - 11 2.58 2.4 2.49 2.97 4.16 4.89 5.51 12 2.49 2.31 2.41 3.02 4.11 4.93 5.6 13 2.314 2.218 2.55 3.016 3.964 5.31 - 14 2.12 2.1 2.04 2.12 2.81 4.64 - 15 2.32 2.36 2.56 2.93 3.7 4.35 - 16 2.41 2.3 2.66 3.03 3.76 - - 17 2.106 1.886 2.008 2.7 3.074 4.484 - 18 2.42 2.23 2.07 2.41 3.08 4.23 - 19 2.66 2.49 2.72 3.15 4.38 5.81 - 20 2.67 2.5 2.44 2.99 3.8 5.27 - 21 3.07 2.92 2.9 3.32 4.4 5.75 5.93 22 2.36 2.03 2.25 2.65 3.64 5.14 5.3 23 2.06 1.89 2.15 2.7 3.61 4.56 4.84 24 1.89 1.84 2.33 2.73 3.73 5.43 6.03 25 2.39 2.15 2.4 2.82 3.94 5.68 6.02

In Table 55, S1d is the inner diameter of the first spacer, S2d is the inner diameter of the second spacer, S3d is the inner diameter of the third spacer, S4d is the inner diameter of the fourth spacer, S5d is the inner diameter of the fifth spacer, and S6d is the inner diameter of the sixth spacer, and S7d is the inner diameter of the seventh spacer.

Example L1v L2v L3v L4v L5v L6v L7v One 2.336 2.062 2.454 3.048 4.634 7.957 14.005 2 9.275 5.426 7.668 9.632 13.386 16.950 47.319 3 6.581 7.121 7.766 6.637 11.774 12.564 20.431 4 7.068 7.912 8.188 6.550 7.990 12.999 20.487 5 6.344 6.949 7.760 6.208 6.896 10.336 16.560 6 5.725 8.018 8.377 7.959 10.343 11.103 27.151 7 5.364 6.531 6.281 6.341 8.166 9.359 23.820 8 5.234 5.060 5.146 4.140 5.986 8.138 19.681 9 4.622 5.306 4.852 4.117 10.028 8.334 26.661 10 5.224 4.992 5.618 5.503 5.577 7.249 20.082 11 5.639 4.858 6.675 7.163 11.037 11.936 27.122 12 5.660 4.496 6.414 6.668 11.628 11.465 24.810 13 4.768 6.603 5.725 6.963 8.370 14.105 26.378 14 3.812 4.671 4.055 5.063 11.284 25.762 16.565 15 4.235 5.537 5.593 7.547 9.420 8.999 27.326 16 4.653 4.657 6.231 6.713 10.267 11.740 33.537 17 2.513 3.775 2.303 9.423 4.007 16.049 22.287 18 3.768 3.460 4.028 5.007 6.979 11.351 18.888 19 9.538 6.253 6.836 7.614 9.636 19.918 32.859 20 5.036 6.731 5.976 9.373 10.486 21.693 17.198 21 6.801 6.939 8.141 8.791 14.589 27.072 34.703 22 5.485 3.980 4.127 4.693 9.885 20.336 35.332 23 3.810 3.975 3.927 6.189 7.516 13.035 31.859 24 4.752 4.366 6.456 5.072 9.867 36.871 47.470 25 5.627 4.949 5.142 5.079 9.362 31.583 47.908

In Table 56, 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, and L6v is the volume of the fifth lens. is the volume of the sixth lens, and L7v is the volume of the seventh lens. The unit of volume is ^mm3 .

Example L1w L2w L3w L4w L5w L6w L7w One 2.430 2.537 2.553 3.170 5.792 9.947 14.145 2 9.646 6.674 7.975 11.847 16.732 17.628 49.211 3 6.844 7.406 9.708 8.296 12.245 15.705 20.635 4 7.351 8.229 10.235 8.188 8.310 16.249 20.692 5 6.598 7.227 9.700 7.760 7.172 12.921 16.725 6 5.954 8.339 10.472 9.710 12.619 11.547 28.237 7 5.579 6.793 7.852 7.736 9.962 9.733 24.773 8 5.444 6.223 5.351 4.306 7.362 8.463 20.468 9 4.807 6.527 5.046 4.282 12.334 8.667 27.727 10 5.433 6.140 5.843 5.723 6.859 7.539 20.885 11 5.865 5.052 8.344 8.953 11.478 14.920 27.393 12 5.886 4.676 8.017 6.935 12.093 14.331 25.803 13 4.958 8.121 7.042 7.242 10.379 17.491 26.642 14 3.964 5.746 4.217 5.266 14.106 26.792 17.227 15 4.404 6.810 5.817 7.849 11.587 9.359 28.419 16 4.839 5.728 6.480 6.982 12.629 12.210 34.879 17 2.614 4.643 2.833 9.800 5.009 20.061 22.510 18 3.919 3.598 4.954 5.207 8.724 11.805 19.643 19 9.919 7.816 7.110 9.365 11.756 20.715 34.174 20 5.237 7.001 7.471 9.748 13.107 22.560 17.886 21 7.073 7.217 10.176 9.142 18.237 28.155 36.091 22 5.705 4.895 5.077 4.880 12.356 25.420 35.685 23 3.962 4.889 4.084 7.612 7.817 13.556 33.133 24 4.942 5.370 6.714 5.275 12.334 38.345 47.945 25 5.852 6.087 5.348 5.282 11.516 32.847 48.387

In Table 57, 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, and L6w is the weight of the sixth lens, and L7w is the weight of the seventh lens. The unit of weight is mg.

Example L1TR L2TR L3TR L4TR L5TR L6TR L7TR One 3.38 3.58 3.88 4.18 4.88 5.5 5.7 2 4.73 4.93 5.43 6.03 7 7.4 7.6 3 2.27 2.39 2.52 2.75 3.02 3.21 3.32 4 2.28 2.4 2.53 2.63 2.78 3.15 3.25 5 2.29 2.4 2.54 2.63 2.78 2.91 3.04 6 2.46 2.58 2.69 2.8 3.17 3.31 3.47 7 2.24 2.29 2.38 2.57 2.78 3.09 3.5 8 4.22 4.42 4.54 4.72 5.4 5.74 6.3 9 4.31 4.46 4.59 4.76 5.45 5.79 6.49 10 4.33 4.53 4.66 4.92 5.09 5.72 5.97 11 4.21 4.3 4.44 4.84 5.47 6.12 6.9 12 4.13 4.22 4.36 4.76 5.39 6.04 6.91 13 4.042 4.252 4.77 5.406 6.158 6.67 6.912 14 3.51 3.81 4.39 4.98 5.85 6.15 6.25 15 3.93 4.13 4.71 6.17 5.3 6.57 6.67 16 4.03 4.23 4.81 5.4 6.27 6.67 6.77 17 3.83 4.078 4.22 4.98 5.74 6.174 6.51 18 3.83 4.03 4.23 4.83 5.32 5.72 5.92 19 4.83 5.13 5.43 6.23 6.72 7.12 7.32 20 4.25 4.34 4.48 4.88 5.51 6.33 6.7 21 4.71 4.8 4.93 5.37 6.22 7.25 7.68 22 4.09 4.18 4.3 4.53 5.22 6.62 7.32 23 3.73 3.82 3.96 4.39 4.96 6 6.86 24 3.97 4.06 4.19 4.63 5.2 7.15 8.02 25 4.39 4.48 4.61 5.04 5.61 7.09 7.95

In Table 58, L1TR is the maximum diameter of the first lens, L2TR is the maximum diameter of the second lens, L3TR is the maximum diameter of the third lens, L4TR is the maximum diameter of the fourth lens, and L5TR is the maximum diameter of the fifth lens. is the maximum diameter, L6TR is the maximum diameter of the sixth lens, and L7TR is the maximum diameter of the seventh lens. The maximum diameter refers to the diameter including the ribs of the lens.

Example L1rt L2rt L3rt L4rt L5rt L6rt L7rt One 0.245 0.26 0.25 0.235 0.305 0.285 0.44 2 0.61 0.37 0.33 0.32 0.37 0.465 0.895 3 0.59 0.48 0.51 0.27 0.48 0.31 0.41 4 0.6 0.54 0.54 0.44 0.25 0.38 0.42 5 0.54 0.5 0.52 0.42 0.21 0.39 0.4 6 0.39 0.44 0.47 0.36 0.42 0.38 0.47 7 0.54 0.44 0.47 0.35 0.43 0.38 0.41 8 0.435 0.43 0.36 0.215 0.32 0.33 0.405 9 0.38 0.46 0.34 0.2 0.5 0.34 0.67 10 0.41 0.41 0.37 0.37 0.29 0.33 0.52 11 0.55 0.38 0.58 0.41 0.5 0.32 0.53 12 0.56 0.36 0.59 0.41 0.53 0.3 0.46 13 0.431 0.487 0.372 0.288 0.315 0.394 0.534 14 0.482 0.395 0.316 0.328 0.422 0.885 0.409 15 0.431 0.556 0.361 0.429 0.38 0.38 0.667 16 0.431 0.457 0.361 0.364 0.38 0.334 0.729 17 0.326 0.433 0.265 0.472 0.156 0.52 0.641 18 0.39 0.33 0.3 0.26 0.425 0.55 0.534 19 0.57 0.4 0.31 0.22 0.355 0.57 0.625 20 0.48 0.49 0.48 0.5 0.47 0.83 0.32 21 0.53 0.41 0.56 0.57 0.48 0.6 0.62 22 0.51 0.25 0.32 0.32 0.51 0.53 0.72 23 0.4 0.42 0.37 0.5 0.32 0.46 0.72 24 0.47 0.41 0.45 0.41 0.47 0.93 0.7 25 0.44 0.39 0.4 0.4 0.38 0.74 0.72

In Table 59, L1rt is the maximum thickness of the ribs of the first lens, L2rt is the maximum thickness of the ribs of the second lens, L3rt is the maximum thickness of the ribs of the third lens, and L4rt is the maximum thickness of the ribs 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. The maximum thickness of the rib refers to the thickness of the part in contact with the spacer.

Figure 54 shows the maximum outer diameter of the seventh lens (L7TR), the maximum thickness of the rib (L7rt), the edge thickness of the seventh lens (L7edgeT), the lens thickness at the first inflection point on the object side of the seventh lens (Yc71P1), It shows the lens thickness (Yc71P2) at the second inflection point on the object side of the seventh lens and the lens thickness (Yc72P1) at the third inflection point on the image side of the seventh lens.

In the above, the configuration and features of the present invention have been described based on the embodiments according to the present invention, but the present invention is not limited thereto, and various changes or modifications may be made within the spirit and scope of the present invention. It is obvious to those skilled in the art, and therefore, it is stated that such changes or modifications fall within the scope of the appended patent claims.

110: first lens
120: second lens
130: third lens
140: fourth lens
150: 5th lens
160: 6th lens
170: 7th lens
180: Infrared blocking filter
190: Image sensor
ST: aperture

Claims (14)

Arranged sequentially along the optical axis from the object side toward the image side,
a first lens having positive refractive power, having an object-side surface that is convex and an image-side surface that is concave;
a second lens having negative refractive power, having an object-side surface that is convex and an image-side surface that is concave;
a third lens having positive refractive power and having a convex object-side surface;
a fourth lens having negative refractive power, having an object-side surface that is convex and an image-side surface that is concave;
a fifth lens having negative refractive power;
a sixth lens having positive refractive power; and
It includes a seventh lens having negative refractive power,
When the radius of curvature of the object-side surface of the first lens is R1 and the radius of curvature of the image-side surface of the second lens is R4, 0.01 < R1/R4 < 1.3 is satisfied,
When the radius of curvature of the object-side surface of the third lens is R5, an imaging optical system that satisfies 0.1 < R1/R5 < 0.7.
delete According to paragraph 1,
The sixth lens has a convex object-side surface, and the seventh lens has a concave image-side surface,
When the radius of curvature of the object side surface of the sixth lens is R11 and the radius of curvature of the image side surface of the seventh lens is R14, satisfying 0.6 < (R11 + R14)/(2*R1) < 3.0 Imaging optics.
According to paragraph 1,
The focal length of the first lens is f1, the focal length of the second lens is f2, the focal length of the third lens is f3, the focal length of the fourth lens is f4, the focal length of the fifth lens is f5, When the focal length of the sixth lens is f6, the focal length of the seventh lens is f7, and the total focal length of the optical system consisting of the first to seventh lenses is f,
An imaging optical system that satisfies 0.1 < (1/f1+1/f2+1/f3+1/f4+1/f5+1/f6+1/f7)*f < 0.8.
According to paragraph 1,
The focal length of the first lens is f1, the focal length of the second lens is f2, the focal length of the third lens is f3, the focal length of the fourth lens is f4, the focal length of the fifth lens is f5, When the focal length of the sixth lens is f6, the focal length of the seventh lens is f7, and the distance on the optical axis from the object side of the first lens to the imaging surface of the image sensor is TTL,
Imaging optical system that satisfies 0.1 < (1/f1+1/f2+1/f3+1/f4+1/f5+1/f6+1/f7)*TTL < 1.0.
According to paragraph 1,
The sixth lens has a convex object side surface,
The seventh lens has a concave image side,
When the thickness on the optical axis of the first lens is TD1 and the distance on the optical axis from the object side surface of the sixth lens to the image side surface of the seventh lens is D67, 0.2 < TD1/D67 < 0.8 is satisfied. imaging optical system.
According to paragraph 1,
When the optical axis distance from the image side of the fifth lens to the object side of the sixth lens is SD56, and the optical axis distance from the image side of the sixth lens to the object side of the seventh lens is SD67. , an imaging optical system that satisfies SD56 < SD67.
In clause 7,
The optical axis distance from the image side of the first lens to the object side of the second lens is SD12, and the optical axis distance from the image side of the third lens to the object side of the fourth lens is SD34. In this case, an imaging optical system that satisfies SD12 < SD34.
According to paragraph 1,
When the optical axis distance from the object side of the first lens to the imaging surface is TTL, and half the diagonal length of the imaging surface is Img HT,
Imaging optical system that satisfies 0.6 < TTL/(2*Img HT) < 0.9.
According to paragraph 1,
When the sum of the thicknesses on the optical axis of each of the first to seventh lenses is ∑TD, and the distance on the optical axis from the object side of the first lens to the imaging surface is TTL, 0.4 < ∑TD/TTL < 0.7 Satisfactory imaging optics.
According to clause 10,
When the sum of air gaps between the first lens to the seventh lens is ∑SD, an imaging optical system that satisfies 0.2 < ∑SD/∑TD < 0.7.
According to paragraph 1,
The third lens is an imaging optical system whose image side is convex.
According to paragraph 1,
The fifth lens is an imaging optical system in which the object-side surface is convex and the image-side surface is concave.
According to paragraph 1,
The seventh lens is an imaging optical system in which the object-side surface and the image-side surface are concave, respectively.