KR20220093059A - Optical imaging system - Google Patents

Abstract

An optical imaging system according to one embodiment of the present invention comprises: a first lens having a positive refractive power, a convex object-side surface, and a concave image-side surface; a second lens having a negative refractive power, a convex object-side surface, and a concave image-side surface; a third lens having a negative refractive power; a fourth lens having a positive refractive power; a fifth lens having a positive refractive power; a sixth lens having a positive refractive power; and a seventh lens having a negative refractive power. The optical imaging system satisfies 0.01 < R1/R4 < 1.3, where R1 is a radius of curvature of the object-side surface of the first lens and R4 is a radius of curvature of the image-side surface of the second lens. The optical imaging system is easily applied to a portable electronic device.

Description

Optical imaging system

The present invention relates to an imaging optical system.

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

Accordingly, the number of lenses provided in the camera is increasing. However, since the portable terminal on which the camera is mounted has a tendency to be miniaturized, there is a problem in that it is very difficult to arrange a lens in the camera.

Therefore, it is possible to correct aberration to realize high resolution, and there is a need for research that can arrange a plurality of lenses in a limited space.

SUMMARY OF THE INVENTION An object 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 sequentially arranged along an optical axis from an object side toward an image side, having a positive refractive power, an object side surface is convex, and an image side surface is concave; a second lens having a negative refractive power, an object-side surface is convex, and an image-side surface is concave; a third lens having a negative refractive power; a fourth lens having positive refractive power; a fifth lens having positive refractive power; a sixth lens having positive refractive power; and a seventh lens having a negative refractive power, wherein when a radius of curvature of the object-side surface of the first lens is R1 and a 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 optical imaging system according to an embodiment of the present invention, it is possible to realize high resolution by facilitating correction of aberration while reducing the size of the optical system.

1 is a block diagram of an imaging optical system according to a first embodiment of the present invention.
FIG. 2 is a curve showing aberration characteristics of the imaging optical system shown in FIG. 1 .
3 is a block diagram of an imaging optical system according to a second embodiment of the present invention.
FIG. 4 is a curve showing aberration characteristics of the imaging optical system shown in FIG. 3 .
5 is a block diagram of an imaging optical system according to a third embodiment of the present invention.
FIG. 6 is a curve showing aberration characteristics of the imaging optical system shown in FIG. 5 .
7 is a block diagram of an imaging optical system according to a fourth embodiment of the present invention.
FIG. 8 is a curve showing aberration characteristics of the imaging optical system shown in FIG. 7 .
9 is a block diagram of an imaging optical system according to a fifth embodiment of the present invention.
FIG. 10 is a curve showing aberration characteristics of the imaging optical system shown in FIG. 9 .
11 is a block diagram of an imaging optical system according to a sixth embodiment of the present invention.
12 is a curve showing aberration characteristics of the imaging optical system shown in FIG. 11 .
13 is a block diagram of an imaging optical system according to a seventh embodiment of the present invention.
FIG. 14 is a curve showing aberration characteristics of the imaging optical system shown in FIG. 13 .
15 is a block diagram of an imaging optical system according to an eighth embodiment of the present invention.
FIG. 16 is a curve showing aberration characteristics of the imaging optical system shown in FIG. 15 .
17 is a block diagram of an imaging optical system according to a ninth embodiment of the present invention.
FIG. 18 is a curve showing aberration characteristics of the imaging optical system shown in FIG. 17 .
19 is a block diagram of an imaging optical system according to a tenth embodiment of the present invention.
20 is a curve showing aberration characteristics of the imaging optical system shown in FIG. 19 .
21 is a block diagram of an imaging optical system according to an eleventh embodiment of the present invention.
22 is a curve showing aberration characteristics of the imaging optical system shown in FIG. 21 .
23 is a block diagram of an imaging optical system according to a twelfth embodiment of the present invention.
24 is a curve showing aberration characteristics of the imaging optical system shown in FIG. 23;
25 is a block diagram of an imaging optical system according to a thirteenth embodiment of the present invention.
FIG. 26 is a curve showing aberration characteristics of the imaging optical system shown in FIG. 25 .
27 is a block diagram of an imaging optical system according to a fourteenth embodiment of the present invention.
28 is a curve showing aberration characteristics of the imaging optical system shown in FIG. 27;
29 is a block diagram of an imaging optical system according to a fifteenth embodiment of the present invention.
30 is a curve showing aberration characteristics of the imaging optical system shown in FIG. 29;
31 is a block diagram of an imaging optical system according to a sixteenth embodiment of the present invention.
FIG. 32 is a curve showing aberration characteristics of the imaging optical system shown in FIG. 31;
33 is a block diagram of an imaging optical system according to a seventeenth embodiment of the present invention.
FIG. 34 is a curve showing aberration characteristics of the imaging optical system shown in FIG. 33;
35 is a block diagram of an imaging optical system according to an eighteenth embodiment of the present invention.
FIG. 36 is a curve showing aberration characteristics of the imaging optical system shown in FIG. 35;
37 is a block diagram of an imaging optical system according to a nineteenth embodiment of the present invention.
38 is a curve showing aberration characteristics of the imaging optical system shown in FIG. 37;
39 is a block diagram of an imaging optical system according to a twentieth embodiment of the present invention.
FIG. 40 is a curve showing aberration characteristics of the imaging optical system shown in FIG. 39;
41 is a block diagram of an imaging optical system according to a twenty-first embodiment of the present invention.
FIG. 42 is a curve showing aberration characteristics of the imaging optical system shown in FIG. 41;
43 is a block diagram of an imaging optical system according to a twenty-second embodiment of the present invention.
FIG. 44 is a curve showing aberration characteristics of the imaging optical system shown in FIG. 43; FIG.
45 is a block diagram of an imaging optical system according to a twenty-third embodiment of the present invention.
46 is a curve showing aberration characteristics of the imaging optical system shown in FIG. 45;
47 is a block diagram of an imaging optical system according to a twenty-fourth embodiment of the present invention.
FIG. 48 is a curve showing aberration characteristics of the imaging optical system shown in FIG. 47;
49 is a block diagram of an imaging optical system according to a twenty-fifth embodiment of the present invention.
50 is a curve showing aberration characteristics of the imaging optical system shown in FIG. 49;
51 is a block diagram of an imaging optical system according to a twenty-sixth embodiment of the present invention.
FIG. 52 is a curve showing aberration characteristics of the imaging optical system shown in FIG. 50;
53 is a block diagram of an imaging optical system according to a twenty-seventh embodiment of the present invention.
FIG. 54 is a curve showing aberration characteristics of the imaging optical system shown in FIG. 53;
55 is a block diagram of an imaging optical system according to a twenty-eighth embodiment of the present invention.
FIG. 56 is a curve showing aberration characteristics of the imaging optical system shown in FIG. 55; FIG.
57 and 58 are schematic cross-sectional views illustrating a state in which a plurality of lenses, spacers, and lens barrels are combined.
59 is an enlarged view of a part of the rib of the seventh lens.
60 is a diagram for explaining parameters of a lens.

Hereinafter, an embodiment 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 embodiment.

For example, those skilled in the art who understand the spirit of the present invention will be able to easily suggest other embodiments included within the scope of the present invention through addition, change, or deletion of components, but this is also the spirit of the present invention will be considered to be within the scope of

The thickness, size, and shape of the lens in the following lens diagrams are exaggerated for explanation, and in particular, the spherical or aspherical shape presented in the lens diagram is only presented as an example and is not limited thereto.

In addition, throughout the specification, when a certain component is in contact with another component, it means that these components are not only in 'direct contact' but also include the case of 'indirectly contacting' with another component interposed therebetween.

First, referring to FIG. 57 , the optical imaging system 100 according to an embodiment of the present invention may include a plurality of lenses disposed along an optical axis. In addition, the lens barrel 200 for accommodating a plurality of lenses may be further included. The plurality of lenses may be disposed to be spaced apart from each other by a predetermined distance along the optical axis, respectively.

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

The optical part may be a part in which optical performance of the lens is exhibited. For example, light reflected from an object (or subject) may pass through the optical unit and be refracted.

The ribs may be configured to fix the lens to another configuration, for example, a lens barrel or another lens. A rib extends around the optic and is integrally formed with the optic.

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

For example, as shown in FIG. 57 , the optical imaging system 100 includes a structure in which optical axes of four lenses 1000 , 2000 , 3000 , and 4000 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 axes are aligned, and the second lens 2000 to the fourth lens 4000 are the lenses ( The optical axis is aligned with the first to third lenses). 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 may be coupled to each other. have. That is, the ribs of the first lenses 1000 to the fourth lenses 4000 may be coupled to each other so that the optical axes of the respective lenses are aligned.

As another example, as shown in FIG. 58 , the optical imaging 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 lens 2000 to the fifth lens 5000 are the lenses ( The optical axis is aligned with the first to fourth lenses). 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, the fourth lens ( 4000 and the fifth lens 5000 may be coupled to each other. That is, in the first lens 1000 to the fifth lens 5000 , the ribs of each lens may be coupled to each other so that the optical axes of the respective lenses are aligned.

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

In addition, in each lens, the first surface means a surface (or an object-side surface) facing the object, and the second surface means a surface (or an image-side surface) facing the image sensor. In addition, in the present specification, all numerical values for the radius of curvature, thickness, distance, and effective aperture radius of the lens are in mm, and the unit of angle is Degree.

Meanwhile, the 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. That is, the effective radius means the radius of the optical part of each lens. As an example, the effective radius of the object-side surface of the first lens may mean a straight-line distance between an optical axis and an 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 convex shape of one surface means that the paraxial region portion of the corresponding surface is convex, and the concave shape of one surface means that the paraxial region portion of the corresponding surface is concave. Therefore, even if it is described that one surface of the lens has a convex shape, the edge portion of the lens may be concave. Similarly, although one surface of the lens is described as having a concave shape, the edge portion of the lens may be convex.

The paraxial region means 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, in the optical system according to an embodiment of the present invention, the first lens 1000, the second lens 2000, the third lens 3000, the fourth lens 4000, It includes a fifth lens 5000 , a sixth lens 6000 , and a seventh lens 7000 .

In addition, the optical imaging 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) for blocking infrared rays. The filter is disposed between the lens disposed closest to the image sensor (eg, the seventh lens) and the image sensor.

In addition, the imaging optical system may further include a diaphragm for adjusting 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 disposing the diaphragm relatively close to the first lens 1000 , the overall length (eg, TTL) of the imaging optical system may be reduced.

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

The spacers include a first spacer SP1, a second spacer SP2, a third spacer SP3, a fourth spacer SP4, a fifth spacer SP5, and a sixth spacer arranged from the object side toward the image sensor. SP6). In an embodiment, a seventh spacer SP7 may be further included.

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 greater than the thickness of the seventh spacer SP7 in the optical axis direction.

The first lens may have positive or negative refractive power. In addition, the first lens may have a meniscus shape convex toward the object. In more detail, 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 surface and the second surface of the first lens may be an aspherical surface. For example, both surfaces of the first lens may be aspherical.

The second lens may have positive or negative refractive power. In addition, the second lens may have a meniscus shape convex toward the object. In more detail, 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. In more detail, the first surface and the second surface of the second lens may have a convex shape.

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

The third lens has positive or negative refractive power. In addition, the third lens may have a meniscus shape convex toward the object. In more detail, 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. In more detail, the first surface and the second surface of the third lens may have a convex shape.

Alternatively, the third lens may have a meniscus shape convex toward the image. In more detail, 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 surface and the second surface of the third lens may be an aspherical surface. 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. In more detail, 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. In more detail, the first surface and the second surface of the fourth lens may have a convex shape.

Alternatively, it may have a meniscus shape convex upward. In more detail, 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 surface and the second surface of the fourth lens may be an aspherical surface. 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. In more detail, 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. In more detail, 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 surface and the second surface of the fifth lens may be an aspherical surface. For example, both surfaces of the fifth lens may be aspherical.

The sixth lens has positive or negative refractive power. In addition, the sixth lens may have a meniscus shape convex toward the object. In more detail, 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. In more detail, the first surface and the second surface of the sixth lens may have a convex shape.

Alternatively, the sixth lens may have a meniscus shape convex toward the image. In more detail, 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 shape in which both surfaces are concave. In more detail, the first surface and the second surface of the sixth lens may have a concave shape.

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

The seventh lens has positive or negative refractive power. In addition, the seventh lens may have a meniscus shape convex toward the object. In more detail, 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 shape in which both surfaces are concave. In more detail, the first surface and the second surface of the seventh lens may have a concave shape.

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

In addition, at least one inflection point is formed on at least one of the first surface and the second surface of the seventh lens. For example, the first surface of the seventh lens may be convex in the paraxial region and 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 the object (or subject) is refracted by the first to seventh lenses, and in this case, unintentional light reflection may occur. Unintentional light reflections are light that are not related to image formation and cause flares in the captured image.

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

To this end, as shown in FIG. 59 , the rib of the seventh lens 7000 disposed closest to the image sensor may include the surface treatment area EA. The surface treatment area EA may be a rougher surface than other portions of the ribs of the seventh lens 7000 . The surface treatment area EA may be formed by chemical etching or physical grinding. The surface treatment area EA may scatter reflected light.

Accordingly, even when unintentional light reflection occurs, the reflected light may not be gathered at one point, and thus the flare phenomenon may be suppressed.

The surface treatment area EA may be formed entirely from the edge of the optical part to the end of the rib. However, as shown in FIG. 59 , the untreated area NEA including the step portions E11 , E21 , and E22 may not be surface-treated or may have a different roughness (roughness) from 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 region formed on the first surface of the seventh lens 7000 may be different from the length G2 of the second unprocessed region formed on the second surface of the seventh lens 7000 . have. For example, G1 may be greater than G2.

G1 has a length including the first stepped portion E11, the second stepped portion E21, and the third stepped portion E22, and G2 is the second stepped portion E21 and the third stepped portion E22. It may have a length that includes The distance G4 from the end of the rib to the second stepped portion E21 may be smaller than the distance G3 from the end of the rib to the first stepped portion E11 . Similarly, the distance G5 from the end of the rib to the third stepped portion E22 may be smaller than the distance G3 from the end of the rib to the first stepped portion E11 .

The 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 a 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 (the reciprocal of the radius of curvature), K is the conic constant, and Y is the distance from any point on the aspherical surface of the lens to the optical axis. In addition, constants A to H mean 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.

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

[Condition 1] 0.1 < L1w/L7w < 0.4

[Condition 2] 0.5 < S6d/f < 1.4

[Condition 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 means the diameter including the ribs of the lens.

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

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

Conditional Equation 2 is the ratio of the total focal length to the sixth spacer disposed between the sixth lens and the seventh lens, and when condition 2 is satisfied, a flare phenomenon due to unintentional light reflection may be improved.

Conditional expression 3 is a ratio of the maximum diameter of the first lens to the maximum diameter of the seventh lens, and when conditional expression 3 is satisfied, optical axis alignment may be facilitated through contact between lenses and contact between lenses and lens barrels.

Conditional Equation 4 is the ratio of the average value of the maximum diameters of the first to fourth lenses to the maximum diameter of the seventh lens, and when Conditional Expression 4 is satisfied, aberration can be easily corrected 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 to the maximum diameter of the seventh lens, and when Conditional Expression 5 is satisfied, aberration correction can be easily performed to improve resolution.

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

[Condition 6] 0.1 < L1w/L7w < 0.3

[Condition 7] 0.5 < S6d/f < 1.2

[Condition 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 optical imaging system according to an embodiment of the present invention may further satisfy at least one of the following conditional expressions.

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

[Condition 12] 0.1 < R1/R5 < 0.7

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

[Condition 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

[Condition 17] 0.4 < D13/D57 < 1.2

[Condition 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 surface 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 surface of the third lens 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 on-axis distance from the object-side surface of the first lens to the image-side surface of the third lens, and D57 is the on-axis distance 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 on-axis distance from the image-side surface of the first lens to the object-side surface of the second lens, SD34 is the on-axis distance from the image-side surface of the third lens to the object-side surface of the fourth lens, and SD56 is the fifth The on-axis distance from the image-side surface of the lens to the object-side surface of the sixth lens is SD67, and SD67 is the on-axis distance from the image-side surface of the sixth lens to the object-side surface of the seventh lens.

TTL is the distance on the optical axis from the object-side surface 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 air gaps of a plurality of lenses, and ∑TD is the sum of thicknesses on the optical axis of each lens. The air gap refers to the distance on the optical axis between adjacent lenses.

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

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

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

When conditional expression 11 is satisfied, the correction effect of spherical aberration and astigmatism can be improved, and thus resolution can be improved.

When condition 12 is satisfied, the correction effect of spherical aberration and astigmatism can be improved, and thus resolution can be improved.

When condition 13 is satisfied, the correction effect of spherical aberration and astigmatism can be improved, and thus resolution can be improved.

When condition 14 is satisfied, the correction effect of the spherical aberration can be improved and the flare phenomenon can be prevented. Accordingly, the resolution can be improved.

When condition 15 is satisfied, the correction effect of spherical aberration and the curvature of field can be improved. Accordingly, the resolution can be improved.

When the conditional expression 16 is satisfied, the correction effect of spherical aberration and the field curvature can be improved, and the flare phenomenon can be prevented. Accordingly, the resolution can be improved.

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

When condition 18 is satisfied, mass productivity may be improved by improving the sensitivity of each lens.

When conditional expression 20 is satisfied, a slim imaging optical system can be implemented.

When conditional expression 22 is satisfied, the chromatic aberration correction effect can be improved.

When conditional expression 25 is satisfied, a slim imaging optical system can be implemented.

When conditional expression 26 is satisfied, a slim imaging optical system can be implemented while improving the mass productivity of each lens.

When conditional expression 27 is satisfied, a slim imaging optical system can be implemented.

When conditional expression 28 is satisfied, a slim imaging optical system can be implemented while improving the mass productivity of each lens.

When conditional expression 29 is satisfied, a slim imaging optical system can be implemented.

When conditional expression 30 is satisfied, a slim imaging optical system can be implemented.

When conditional expression 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. 160 and an optical system including the seventh lens 170 , and may further include a filter 180 , an image sensor 190 , and an aperture ST.

The lens properties of each lens (Radius of curvature, Thickness or Distance between lenses, Index, Abbe number, Effective aperture radius) Table 1 shows.

face number note radius of curvature thickness or distance refractive index Abbesu 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 image plane Infinity 0.012 4.00

In the first embodiment of the present invention, the first lens 110 has 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 is concave in the area.

The second lens 120 has a negative refractive power, a first surface of the second lens 120 has a convex shape in the paraxial region, and a second surface of the second lens 120 has a concave shape in the paraxial region. The diaphragm ST is disposed between the first lens 110 and the second lens 120 .

The third lens 130 has a positive refractive power, and the first and second surfaces of the third lens 130 are convex in the paraxial region.

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

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

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

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

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

In addition, 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 convex toward the edge.

Meanwhile, each surface of the first lens 110 to the seventh lens 170 has an aspherical surface value as shown in Table 2.

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

In addition, the optical system configured as described above may have the aberration characteristic 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. 260 and an optical system including a seventh lens 270 , and may further include a filter 280 , an image sensor 290 , and an aperture ST.

The lens characteristics of each lens (Radius of curvature, Thickness or Distance between lenses, Index, Abbe number, Effective aperture radius) Table 3 shows.

face number note radius of curvature thickness or distance refractive index Abbesu effective radius S1 first lens 2.09523177 0.9535556 1.546 56.114 1.63 S2 8.9751949 0.1222166 1.56 S3 second lens 5.87072709 0.23 1.669 20.353 1.45 S4 3.37511591 0.3824262 1.28 S5 third lens 16.2065401 0.4972101 1.546 56.114 1.35 S6 -139.89462 0.1167997 1.43 S7 4th lens 7.40791882 0.26 1.669 20.353 1.44 S8 6.08803731 0.2808933 1.61 S9 5th lens 38.3058612 0.3659631 1.644 23.516 1.74 S10 6.70285435 0.2283896 2.00 S11 6th lens 3.49003116 0.7733843 1.546 56.114 2.23 S12 -2.3502414 0.5034976 2.49 S13 7th lens -2.464576 0.38 1.546 56.114 3.26 S14 3.03579165 0.1056639 3.37 S15 filter Infinity 0.11 1.519 64.197 3.67 S16 Infinity 0.678 3.70 S17 image plane Infinity 0.012 4.00

In the second embodiment of the present invention, the first lens 210 has a 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 is concave in the area.

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

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

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

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

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

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

In addition, 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 convex toward the edge.

In addition, 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 convex toward the edge.

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

K A B C D E F G H I S1 -1.10381 0.012898 0.009879 -0.01571 0.018687 -0.01362 0.005924 -0.00141 0.000134 0 S2 13.09551 -0.04765 0.043287 -0.03135 0.017346 -0.00841 0.002867 -0.00055 4.24E-05 0 S3 0 0 0 0 0 0 0 0 0 0 S4 -1.83331 -0.06675 0.070325 -0.02257 -0.00885 0.012981 -0.00247 -0.00187 0.000889 0 S5 0 -0.02215 0.000148 -0.02237 0.025134 -0.01334 -0.00223 0.00481 -0.00122 0 S6 -95 -0.06308 -0.00187 0.021015 -0.04859 0.053351 -0.03506 0.013045 -0.00206 0 S7 0 -0.13364 0.059514 -0.16508 0.269468 -0.25157 0.136766 -0.0403 0.00497 0 S8 0 -0.10179 0.07915 -0.15722 0.198605 -0.15112 0.067755 -0.01665 0.00174 0 S9 0 -0.11882 0.149294 -0.14949 0.107127 -0.05474 0.017607 -0.00319 0.000255 0 S10 2.859774 -0.18537 0.141763 -0.11055 0.071846 -0.03276 0.009077 -0.00134 8.07E-05 0 S11 -19.5338 -0.01212 -0.01555 -0.00129 0.003885 -0.00177 0.000369 -3.4E-05 9.95E-07 0 S12 -0.81308 0.09292 -0.06559 0.020026 -0.00471 0.001294 -0.00026 2.67E-05 -1.1E-06 0 S13 -13.479 -0.09591 -0.0047 0.016588 -0.00506 0.00075 -6.2E-05 2.73E-06 -5E-08 0 S14 -0.59135 -0.09685 0.02646 -0.00421 0.000279 1.49E-05 -4.5E-06 3.64E-07 -1.3E-08 1.67E-10

In addition, the optical system configured as described above may have the aberration characteristic 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. 360 and an optical system including a seventh lens 370 , and may further include a filter 380 , an image sensor 390 , and an aperture ST.

The lens characteristics of each lens (Radius of curvature, Thickness or Distance between lenses, Index, Abbe number, Effective aperture radius) Table 5 shows.

face number note radius of curvature thickness or distance refractive index Abbesu effective radius S1 first lens 1.82391792 0.7125976 1.546 56.114 1.29 S2 7.84659281 0.0641189 1.24 S3 second lens 7.25645695 0.2 1.669 20.353 1.19 S4 3.22746768 0.1833442 1.11 S5 third lens 3.55978049 0.289782 1.546 56.114 1.07 S6 5.37540447 0.3323457 1.09 S7 4th lens 108.917864 0.3185673 1.546 56.114 1.14 S8 -25.473189 0.3581803 1.31 S9 5th lens -10.246565 0.32 1.658 21.494 1.52 S10 -2511.6237 0.1796019 1.82 S11 6th lens 2.24163583 0.5032143 1.658 21.494 2.09 S12 2.29949488 0.405792 2.46 S13 7th lens 2.25160113 0.563893 1.537 55.711 3.10 S14 1.62924582 0.1385632 3.13 S15 filter Infinity 0.11 1.519 64.197 3.58 S16 Infinity 0.7098607 3.61 S17 image plane Infinity 0.0101632 4.00

In the 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 is concave in the area.

The second lens 320 has a negative refractive power, a first surface of the second lens 320 is convex in the paraxial region, and a second surface of the second lens 320 is concave in the paraxial region.

The third lens 330 has a positive refractive power, a first surface of the third lens 330 is convex in the paraxial region, and a second surface of the third lens 330 is concave in the paraxial region. The stopper ST is disposed between the second lens 320 and the third lens 330 .

The fourth lens 340 has positive refractive power, and the first and second surfaces of the fourth lens 340 are convex in the paraxial region.

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

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

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

In addition, two inflection points are 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, concave outside the paraxial region, and convex toward the edge.

In addition, 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 convex toward the edge.

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

K A B C D E F G H S1 -0.05681 -0.00382 0.005709 -0.01903 0.017159 -0.00924 0.001372 -9.6E-05 0 S2 -25.6173 -0.01646 -0.07616 0.132063 -0.11427 0.054558 -0.01426 0.001526 0 S3 -23.4928 -0.03092 -0.07642 0.205444 -0.20566 0.115946 -0.03485 0.004323 0 S4 -2.4185 -0.029 -0.02587 0.11758 -0.1178 0.048002 0.01085 -0.00984 0 S5 1.638831 -0.0558 0.001053 -0.0238 0.077823 -0.07273 0.054265 -0.01613 0 S6 -1.64854 -0.03653 -0.00816 0.035786 -0.0842 0.148028 -0.10368 0.031151 0 S7 99 -0.07525 0.043317 -0.2362 0.448729 -0.47604 0.273589 -0.06373 0 S8 87.32309 -0.04708 0.003053 -0.09209 0.13981 -0.10712 0.045592 -0.00772 0 S9 3.284997 0.045871 -0.12833 0.159561 -0.16448 0.094896 -0.0278 0.003303 0 S10 -99 -0.03644 -0.03317 0.063386 -0.06646 0.033384 -0.00763 0.000644 0 S11 -16.0412 0.004354 -0.06522 0.059141 -0.0406 0.014529 -0.00241 0.000149 0 S12 -18.2699 -0.02906 0.016429 -0.01576 0.005873 -0.00116 0.000124 -5.6E-06 0 S13 -0.89844 -0.33707 0.157271 -0.04452 0.007967 -0.00085 4.89E-05 -1.1E-06 -5.4E-09 S14 -0.82188 -0.26788 0.125454 -0.04542 0.011249 -0.00179 0.000173 -9.2E-06 2.05E-07

In addition, the optical system configured as described above may have the aberration characteristic 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 a 460 and a seventh lens 470 , and may further include a filter 480 , an image sensor 490 , and an aperture ST.

The lens characteristics of each lens (Radius of curvature, Thickness or Distance between lenses, Index, Abbe number, Effective aperture radius) Table 7 shows.

face number note radius of curvature thickness or distance refractive index Abbesu effective radius S1 first lens 2.02988734 0.8071808 1.546 56.114 1.50 S2 13.3648006 0.03 1.47 S3 second lens 4.79376157 0.225 1.669 20.353 1.41 S4 2.78744479 0.2223433 1.30 S5 third lens 4.82360261 0.2898759 1.546 56.114 1.24 S6 8.14950885 0.3234802 1.21 S7 4th lens 7.95169453 0.2896338 1.546 56.114 1.24 S8 13.2949054 0.2359829 1.35 S9 5th lens -5.3395632 0.3051644 1.658 21.494 1.41 S10 -10.758919 0.2260567 1.65 S11 6th lens 4.03734585 0.85 1.658 21.494 1.75 S12 4.00738375 0.2243888 2.57 S13 7th lens 3.39858655 0.7824535 1.537 55.711 3.30 S14 2.20528309 0.1384397 3.22 S15 filter Infinity 0.11 1.519 64.197 3.59 S16 Infinity 0.6730019 3.62 S17 image plane Infinity 0.017 3.94

In the fourth embodiment of the present invention, the first lens 410 has a 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 is concave in the area.

The second lens 420 has a negative refractive power, a first surface of the second lens 420 is convex in the paraxial region, and a second surface of the second lens 420 is concave in the paraxial region.

The third lens 430 has a positive refractive power, a first surface of the third lens 430 is convex in the paraxial region, and a second surface of the third lens 430 is concave in the paraxial region. The stopper ST is disposed between the second lens 420 and the third lens 430 .

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

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

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

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

In addition, 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.

In addition, 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 convex toward the edge.

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

K A B C D E F G H S1 0.055002 -0.00862 0.019719 -0.04878 0.061416 -0.04738 0.021289 -0.00524 0.000528 S2 -26.0973 -0.04292 0.055554 -0.07536 0.066566 -0.03618 0.01155 -0.00207 0.000165 S3 -36.1351 -0.04162 0.048893 -0.07864 0.079391 -0.04337 0.014109 -0.00297 0.000356 S4 -7.66553 -0.0165 0.01116 -0.03292 0.043974 -0.05263 0.056504 -0.0304 0.005911 S5 3.337325 -0.04652 0.049134 -0.1038 0.167627 -0.19024 0.165026 -0.07793 0.014471 S6 -0.02412 -0.05207 0.019764 0.012674 -0.00403 -0.04206 0.094388 -0.06504 0.015741 S7 -66.3047 -0.07065 -0.02908 0.041965 -0.11679 0.174957 -0.12258 0.040671 -0.00488 S8 19.54898 -0.06049 0.012663 -0.10426 0.186276 -0.22707 0.175833 -0.07314 0.012434 S9 -5.93087 -0.02712 -0.00151 0.063515 -0.12587 0.092909 -0.02991 0.003292 0 S10 33.02479 -0.09413 0.02661 0.047806 -0.07202 0.04396 -0.01237 0.001304 0 S11 -51.3785 0.001924 -0.10804 0.11432 -0.08252 0.035053 -0.00798 0.000753 0 S12 -31.504 -0.00904 -0.00561 0.001398 -0.00039 9.31E-05 -1.2E-05 5.9E-07 0 S13 -0.47616 -0.19617 0.090781 -0.02708 0.005169 -0.00061 4.35E-05 -1.7E-06 2.73E-08 S14 -0.78006 -0.14942 0.059181 -0.01981 0.004571 -0.00067 5.95E-05 -2.9E-06 5.85E-08

In addition, the optical system configured as described above may have the aberration characteristic 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 includes an optical system including a 560 and a seventh lens 570 , and may further include a filter 580 , an image sensor 590 and an aperture ST.

The lens characteristics of each lens (Radius of curvature, Thickness or Distance between lenses, Index, Abbe number, Effective aperture radius) Table 9 shows.

face number note radius of curvature thickness or distance refractive index Abbesu effective radius S0 Infinity -0.06 1.651 S1 first lens 2.370605 0.543075 1.546 56.114 1.572 S2 3.837673 0.151623 1.517 S3 second lens 3.432869 0.707828 1.546 56.114 1.478 S4 -17.0251 0.022468 1.428 S5 third lens 5.142878 0.224676 1.679 19.236 1.300 S6 2.533326 0.588782 1.230 S7 4th lens -1446.17 0.340433 1.679 19.236 1.404 S8 -1446.17 0.207036 1.600 S9 5th lens 3.643447 0.326355 1.546 56.114 1.857 S10 3.822446 0.317149 2.199 S11 6th lens 3.850899 0.440632 1.679 19.236 2.415 S12 3.049364 0.177387 2.808 S13 7th lens 1.743028 0.613274 1.537 53.955 3.115 S14 1.56E+00 0.246638 3.314 S15 filter Infinity 0.11 1.5187 64.1664 3.654985 S16 Infinity 0.804727 3.687604 S17 image plane Infinity 0.0051 4.07527

In the fifth embodiment of the present invention, the first lens 510 has a 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 is concave in the area.

The second lens 520 has positive refractive power, and the first and second surfaces of the second lens 520 are convex in the paraxial region. The stopper ST is disposed between the first lens 510 and the second lens 520 .

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

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

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

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

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

In addition, 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.

In addition, 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 convex toward the edge.

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

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

In addition, the optical system configured as described above may have the aberration characteristic 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 a 660 and a seventh lens 670 , and may further include a filter 680 , an image sensor 690 , and an aperture ST.

The lens properties of each lens (Radius of curvature, Thickness or Distance between lenses, Index, Abbe number, Effective aperture radius) Table 11 shows.

face number note radius of curvature thickness or distance refractive index Abbesu 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 image plane Infinity 0.005449 3.250775

In the sixth embodiment of the present invention, the first lens 610 has a positive 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 is concave in the area.

The second lens 620 has positive refractive power, and the first and second surfaces of the second lens 620 are convex in the paraxial region. The diaphragm ST is disposed between the first lens 610 and the second lens 620 .

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

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

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

The sixth lens 660 has a negative refractive power, a first surface of the sixth lens 660 has a convex shape in the paraxial region, and a second surface of the sixth lens 660 has a concave shape in the paraxial region.

The seventh lens 670 has positive refractive power, and a first surface of the seventh lens 670 has a convex shape in the paraxial region, and a second surface of the seventh lens 670 has a concave shape in the paraxial region.

In addition, two inflection points are formed on the first surface of the seventh lens 670 . For example, the first surface of the seventh lens 670 may be convex in the paraxial region, concave outside the paraxial region, and convex toward the edge.

In addition, 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 convex toward the edge.

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

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

In addition, the optical system configured as described above may have the aberration characteristic 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 a 760 and a seventh lens 770 , and may further include a filter 780 , an image sensor 790 , and an aperture ST.

The lens characteristics of each lens (Radius of curvature, Thickness or Distance between lenses, Index, Abbe number, Effective aperture radius) Table 13 shows.

face number note radius of curvature thickness or distance refractive index Abbesu 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 image plane Infinity 0.01 3.712027

In the seventh embodiment of the present invention, the first lens 710 has a 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 is concave in the area.

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

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

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

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

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

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

In addition, 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 convex toward the edge.

In addition, 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 convex toward the edge.

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

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

In addition, the optical system configured as described above may have the aberration characteristic 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. 860 and an optical system including a seventh lens 870 , and may further include a filter 880 , an image sensor 890 , and an aperture ST.

The lens properties of each lens (Radius of curvature, Thickness or Distance between lenses, Index, Abbe number, Effective aperture radius) Table 15 shows.

face number note radius of curvature thickness or distance refractive index Abbesu effective radius S0 Infinity -0.1 1.545 S1 first lens 2.002076 0.290476 1.546 56.114 1.275 S2 1.735025 0.046207 1.265 S3 second lens 1.510849 0.69189 1.546 56.114 1.234 S4 25.17448 0.050782 1.156 S5 third lens 6.622812 0.20331 1.679 19.236 1.088 S6 2.690882 0.397038 0.970 S7 4th lens 404.2399 0.304853 1.646 23.528 1.031 S8 26.39909 0.238795 1.192 S9 5th lens 2.030671 0.231034 1.646 23.528 1.495 S10 2.049104 0.337714 1.721 S11 6th lens 9.000096 0.577572 1.546 56.114 1.996 S12 -1.67925 0.339723 2.084 S13 7th lens -3.83664 0.33269 1.546 56.114 2.569 S14 1.71E+00 0.146102 2.784 S15 filter Infinity 0.11 1.5187 64.1664 3.104605 S16 Infinity 0.594025 3.133872 S17 image plane Infinity 0.009272 3.409206

In the eighth embodiment of the present invention, the first lens 810 has a negative 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 is concave in the area.

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

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

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

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

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

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

In addition, 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 convex toward the edge.

In addition, 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 convex toward the edge.

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

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

In addition, the optical system configured as described above may have the aberration characteristic 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 a 960 and a seventh lens 970 , and may further include a filter 980 , an image sensor 990 , and an aperture ST.

The lens characteristics of each lens (Radius of curvature, Thickness or Distance between lenses, Index, Abbe number, Effective aperture radius) Table 17 shows.

face number note radius of curvature thickness or distance refractive index Abbesu effective radius S0 Infinity -0.1 1.545 S1 first lens 2.368882 0.367771 1.546 56.114 1.537 S2 2.149833 0.055693 1.509 S3 second lens 1.901715 0.8054 1.546 56.114 1.470 S4 34.69271 0.055693 1.395 S5 third lens 8.116881 0.245048 1.679 19.236 1.315 S6 3.249705 0.44958 1.170 S7 4th lens 27.77257 0.345117 1.646 23.528 1.242 S8 15.68604 0.292205 1.430 S9 5th lens 2.481018 0.30074 1.646 23.528 1.793 S10 2.530918 0.421042 2.058 S11 6th lens 8.852122 0.594719 1.546 56.114 2.406 S12 -2.33268 0.433709 2.591 S13 7th lens -5.6504 0.400987 1.546 56.114 3.097 S14 2.11E+00 0.196308 3.252 S15 filter Infinity 0.11 1.5187 64.1664 3.633461 S16 Infinity 0.706716 3.664237 S17 image plane Infinity 0.006313 4.005175

In the ninth embodiment of the present invention, the first lens 910 has a negative 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 is concave in the area.

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

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

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

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

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

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

In addition, 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 convex toward the edge.

In addition, 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 convex toward the edge.

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

K A B C D E F G H S1 -3.6056 0.0006 0.0002 -0.0091 0.0008 0.0037 -0.0023 0.0006 -6E-05 S2 -9.0241 -0.0381 -0.0034 0.0057 0.0064 -0.0066 0.0021 -0.0002 0 S3 -2.5303 -0.0646 0.0638 -0.0489 0.0502 -0.0297 0.0079 -0.0003 -0.0002 S4 -90 -0.061 0.1445 -0.2496 0.2927 -0.227 0.1117 -0.0313 0.0037 S5 0 -0.0873 0.1992 -0.3055 0.3359 -0.2538 0.1258 -0.0363 0.0045 S6 4.7161 -0.0546 0.0965 -0.1239 0.0985 -0.0415 0.0003 0.0073 -0.0021 S7 0 -0.0683 0.0579 -0.1095 0.1139 -0.0757 0.0284 -0.0061 0.0009 S8 0 -0.1131 0.1074 -0.1248 0.0808 -0.0284 0.0031 0.0006 -1E-05 S9 -17.253 -0.0425 -0.0026 0.0281 -0.0272 0.0102 -0.0011 -0.0003 7E-05 S10 -15.241 -0.0436 -0.0118 0.0343 -0.0279 0.0119 -0.0029 0.0004 -2E-05 S11 0 0.0034 -0.0267 0.0138 -0.0061 0.0018 -0.0003 2E-05 -8E-07 S12 -1.2097 0.0895 -0.0603 0.0269 -0.0083 0.0018 -0.0003 2E-05 -7E-07 S13 -4.5375 -0.0806 0.0002 0.0144 -0.005 0.0008 -8E-05 4E-06 -8E-08 S14 -9.2133 -0.0675 0.0218 -0.005 0.0008 -1E-04 8E-06 -4E-07 7E-09

In addition, the optical system configured as described above may have the aberration characteristic 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. 1060 and an optical system including a seventh lens 1070 , and may further include a filter 1080, an image sensor 1090, and an aperture ST.

The lens characteristics of each lens (Radius of curvature, Thickness or Distance between lenses, Index, Abbe number, Effective aperture radius) Table 19 shows.

face number note radius of curvature thickness or distance refractive index Abbesu 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 image plane Infinity 0.01 3.536356437

In the 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 is concave in the area.

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

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

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

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

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

In addition, 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 convex toward the edge.

In addition, 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 convex toward the edge.

On the other hand, each surface of the first lens 1010 to the seventh lens 1070 has an aspherical surface value as shown in Table 20. For example, both the object-side surface and the image-side surface of the first lens 1010 to the seventh lens 1070 are aspherical.

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

In addition, the optical system configured as described above may have the aberration characteristic shown in FIG. 20 .

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

An imaging optical system according to an eleventh 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 1160 and an optical system including a seventh lens 1170 , and may further include a filter 1180 , an image sensor 1190 , and an aperture ST.

The lens characteristics of each lens (Radius of curvature, Thickness or Distance between lenses, Index, Abbe number, Effective aperture radius) Table 21 shows.

face number note radius of curvature thickness or distance refractive index Abbesu effective radius S1 first lens 1.770763 0.730711 1.546 56.114 1.320 S2 14.17202 0.100163 1.273 S3 second lens 5.668898 0.18 1.667 20.353 1.211 S4 2.64742 0.372112 1.100 S5 third lens 8.43642 0.362306 1.546 56.114 1.132 S6 7.970624 0.229099 1.239 S7 4th lens 6.86515 0.42272 1.546 56.114 1.274 S8 36.76921 0.245464 1.393 S9 5th lens -3.17407 0.478139 1.667 20.353 1.445 S10 -4.17541 0.041087 1.772 S11 6th lens 7.099919 0.552516 1.546 56.114 2.150 S12 -1.53067 0.261423 2.068 S13 7th lens -2.51307 0.3 1.546 56.114 2.414 S14 1.797456 0.23426 2.679 S15 filter Infinity 0.11 1.518 64.166 2.907 S16 Infinity 0.774944 2.935720549 S17 image plane Infinity 0.005056 3.264729521

In the eleventh embodiment of the present invention, the first lens 1110 has a 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 is concave in the area.

The second lens 1120 has a negative refractive power, a first surface of the second lens 1120 is convex in the paraxial region, and a second surface of the second lens 1120 is concave in the paraxial region. The diaphragm ST is disposed between the first lens 1110 and the second lens 1120 .

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

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

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

The sixth lens 1160 has positive refractive power, and the first and second surfaces of the sixth lens 1160 are convex in the paraxial region.

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

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

In addition, 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 convex toward the edge.

On the other hand, each surface of the first lens 1110 to the seventh lens 1170 has an aspherical surface value as shown in Table 22. For example, both the object-side surface and the image-side surface of the first lens 1110 to the seventh lens 1170 are aspherical.

K A B C D E F G H I S1 -0.7681 0.01965 -0.0023 0.03216 -0.0725 0.09393 -0.0692 0.02709 -0.0045 0 S2 45.8003 -0.0479 0.07745 -0.054 -0.0476 0.13354 -0.1194 0.05034 -0.0084 0 S3 -2.8609 -0.1305 0.23846 -0.2908 0.23698 -0.1031 0.0108 0.00969 -0.003 0 S4 -0.8781 -0.0856 0.15126 -0.0468 -0.2774 0.65417 -0.6619 0.33681 -0.0673 0 S5 0 -0.0618 -0.0157 0.07733 -0.2544 0.39332 -0.3533 0.18049 -0.0399 0 S6 0 -0.0948 -0.0485 0.1701 -0.3674 0.41646 -0.2753 0.10654 -0.0195 0 S7 24.7714 -0.1253 -0.0916 0.07902 0.06606 -0.3032 0.34529 -0.1688 0.03094 0 S8 -99 -0.022 -0.2346 0.17869 -0.0276 -0.0274 0.02137 -0.0097 0.00223 0 S9 -49.881 -0.0321 0.01104 -0.3632 0.63755 -0.478 0.17949 -0.0322 0.002 0 S10 1.50394 0.14944 -0.3234 0.26404 -0.1034 0.01233 0.00452 -0.0017 0.00016 0 S11 -99 0.05255 -0.154 0.1443 -0.0834 0.02708 -0.0048 0.00044 -2E-05 0 S12 -2.9382 0.0764 -0.0567 0.02305 -0.0064 0.0012 -0.0001 8.7E-06 -2E-07 0 S13 -5.8244 -0.0197 -0.1042 0.09438 -0.036 0.00755 -0.0009 6E-05 -2E-06 0 S14 -0.9447 -0.2204 0.12723 -0.0644 0.02544 -0.0072 0.00137 -0.0002 1.1E-05 -3E-07

In addition, the optical system configured as described above may have the aberration characteristic 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. 1260 and an optical system including a seventh lens 1270 , and may further include a filter 1280 , an image sensor 1290 , and an aperture ST.

The lens characteristics of each lens (Radius of curvature, Thickness or Distance between lenses, Index, Abbe number, Effective aperture radius) Table 23 shows.

face number note radius of curvature thickness or distance refractive index Abbesu 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 image plane Infinity 0.01 3.282195737

In the twelfth embodiment of the present invention, the first lens 1210 has a 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 is concave in the area.

The second lens 1220 has a negative refractive power, a first surface of the second lens 1220 is convex in the paraxial region, and a second surface of the second lens 1220 is concave in the paraxial region. The diaphragm ST is disposed between the first lens 1210 and the second lens 1220 .

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

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

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

The sixth lens 1260 has positive refractive power, and the first and second surfaces of the sixth lens 1260 are convex in the paraxial region.

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

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

In addition, 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 convex toward the edge.

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

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

In addition, the optical system configured as described above may have the aberration characteristic 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 thirteenth 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. 1360 and an optical system including a seventh lens 1370 , and may further include a filter 1380 , an image sensor 1390 , and an aperture ST.

The lens characteristics of each lens (Radius of curvature, Thickness or Distance between lenses, Index, Abbe number, Effective aperture radius) Table 25 shows.

face number note radius of curvature thickness or distance refractive index Abbesu 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 image plane Infinity 0.011 3.730

In the thirteenth embodiment of the present invention, the first lens 1310 has a 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 is concave in the area.

The second lens 1320 has positive refractive power, and the first and second surfaces of the second lens 1320 are convex in the paraxial region.

The third lens 1330 has a negative refractive power, a first surface of the third lens 1330 is convex in the paraxial region, and a second surface of the third lens 1330 is concave in the paraxial region. The stopper ST is disposed between the second lens 1320 and the third lens 1330 .

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

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

The sixth lens 1360 has a negative refractive power, a first surface of the sixth lens 1360 is convex in the paraxial region, and a second surface of the sixth lens 1360 is concave in the paraxial region.

The seventh lens 1370 has a negative refractive power, a first surface of the seventh lens 1270 is convex in the paraxial region, and a second surface of the seventh lens 1370 is concave in the paraxial region.

In addition, 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 convex in the paraxial region, concave outside the paraxial region, and convex toward the edge.

In addition, one inflection point is 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 and convex toward the edge.

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

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

In addition, the optical system configured as described above may have the aberration characteristic 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. 1460 and an optical system including a seventh lens 1470 , and may further include a filter 1480 , an image sensor 1490 , and an aperture ST.

The lens characteristics of each lens (Radius of curvature, Thickness or Distance between lenses, Index, Abbe number, Effective aperture radius) Table 27 shows.

face number note radius of curvature thickness or distance refractive index Abbesu effective radius S1 first lens 2.136724381 0.486053 1.546 56.114 1.360 S2 2.889766837 0.087572 1.331 S3 second lens 3.197028762 0.481363 1.546 56.114 1.301 S4 109.2678078 0.025 1.264 S5 third lens 8.21648334 0.333222 1.679 19.236 1.218 S6 3.643026543 0.428709 1.229 S7 4th lens 5.149363024 0.374385 1.546 56.114 1.353 S8 7.983541153 0.393693 1.392 S9 5th lens 3.813432353 0.4 1.546 56.114 1.576 S10 4.85043033 0.288816 2.010 S11 6th lens 3.891285923 0.4 1.546 56.114 1.916 S12 3.082484661 0.229858 2.371 S13 7th lens 1.601117752 0.493312 1.546 56.114 2.526 S14 1.214247159 0.218016 2.787 S15 filter Infinity 0.21 1.518 64.197 3.238 S16 Infinity 0.634932 3.316 S17 image plane Infinity 0.015 3.728

In the 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 is concave in the area.

The second lens 1420 has a positive refractive power, a first surface of the second lens 1420 is convex in the paraxial region, and a second surface of the second lens 1420 is concave in the paraxial region.

The third lens 1430 has a negative refractive power, a first surface of the third lens 1430 is convex in the paraxial region, and a second surface of the third lens 1430 is concave in the paraxial region. The diaphragm ST is disposed between the second lens 1420 and the third lens 1430 .

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

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

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

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

In addition, 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 concave toward the edge.

In addition, 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 convex toward the edge.

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

K A B C D E F G H J S1 -One -0.0136 0.02467 -0.0811 0.09254 -0.0456 -0.0139 0.02747 -0.0118 0.0017 S2 -13.222 0.01839 -0.091 -0.0856 0.30551 -0.3421 0.22925 -0.0976 0.02376 -0.0025 S3 -1.2237 -0.0255 0.01296 -0.2994 0.64916 -0.662 0.40893 -0.1567 0.03316 -0.0029 S4 -7.0515 -0.018 0.09424 -0.4684 1.19648 -1.7785 1.59837 -0.8543 0.24924 -0.0305 S5 8.98852 -0.0606 0.14701 -0.5476 1.41458 -2.2793 2.23564 -1.2976 0.41058 -0.0546 S6 1.65557 -0.053 0.06637 -0.1724 0.48815 -0.9461 1.10918 -0.7563 0.27857 -0.0429 S7 -4.3409 -0.0524 -0.0067 0.12439 -0.3711 0.55033 -0.4701 0.22801 -0.0561 0.0052 S8 5.85886 -0.0866 0.12995 -0.4361 0.91566 -1.2163 1.00858 -0.506 0.14047 -0.0165 S9 -43.521 0.08526 -0.1755 0.22567 -0.2234 0.15386 -0.0732 0.02213 -0.0038 0.00029 S10 -3.1047 0.0435 -0.1427 0.1592 -0.1109 0.05004 -0.0153 0.00308 -0.0004 1.9E-05 S11 -16.199 0.12636 -0.2435 0.25714 -0.2182 0.11759 -0.0381 0.00724 -0.0007 3.2E-05 S12 0.17584 -0.0767 0.07339 -0.0745 0.03369 -0.008 0.00106 -7E-05 2.3E-06 -1E-08 S13 -0.8173 -0.4272 0.20439 -0.0489 0.00204 0.00211 -0.0006 8.5E-05 -6E-06 1.6E-07 S14 -1.397 -0.3515 0.23363 -0.1198 0.04471 -0.0113 0.00187 -0.0002 1.1E-05 -3E-07

In addition, the optical system configured as described above may have the aberration characteristic 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 .

An imaging optical system according to a fifteenth 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 1560 and an optical system including a seventh lens 1570 , and may further include a filter 1580 , an image sensor 1590 , and an aperture ST.

The lens properties of each lens (Radius of curvature, Thickness or Distance between lenses, Index, Abbe number, Effective aperture radius) Table 29 shows.

face number note radius of curvature thickness or distance refractive index Abbesu effective radius S1 first lens 2.367386627 0.52496 1.546 56.114 1.449 S2 3.194732034 0.05968 1.420 S3 second lens 3.420339572 0.567044 1.546 56.114 1.396 S4 70.97375214 0.026546 1.328 S5 third lens 7.778333323 0.350469 1.679 19.236 1.286 S6 3.816229093 0.409426 1.313 S7 4th lens 5.591688642 0.369187 1.546 56.114 1.426 S8 7.993916661 0.39653 1.495 S9 5th lens 4.100335907 0.426003 1.546 56.114 1.707 S10 5.37283934 0.303377 1.986 S11 6th lens 4.360928988 0.424063 1.679 19.236 1.999 S12 3.568454408 0.223456 2.401 S13 7th lens 1.78787121 0.541352 1.546 56.114 2.495 S14 1.397505481 0.200463 2.837 S15 filter Infinity 0.21 1.518 64.197 3.186 S16 Infinity 0.831011 3.255759682 S17 image plane Infinity 0.001244 3.785091526

In the fifteenth embodiment of the present invention, the first lens 1510 has a 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 is concave in the area.

The second lens 1520 has a positive refractive power, a first surface of the second lens 1520 is convex in the paraxial region, and a second surface of the second lens 1520 is concave in the paraxial region.

The third lens 1530 has a negative refractive power, a first surface of the third lens 1530 is convex in the paraxial region, and a second surface of the third lens 1530 is concave in the paraxial region. The diaphragm ST is disposed between the second lens 1520 and the third lens 1530 .

The fourth lens 1540 has a positive refractive power, a first surface of the fourth lens 1540 is convex in the paraxial region, and a second surface of the fourth lens 1540 is concave in the paraxial region.

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

The sixth lens 1560 has a negative refractive power, a first surface of the sixth lens 1560 is convex in the paraxial region, and a second surface of the sixth lens 1560 is concave in the paraxial region.

The seventh lens 1570 has a negative refractive power, a first surface of the seventh lens 1570 is convex in the paraxial region, and a second surface of the seventh lens 1570 is concave in the paraxial region.

In addition, 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 convex in the paraxial region and concave toward the edge.

In addition, 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 convex toward the edge.

On the other hand, each surface of the first lens 1510 to the seventh lens 1570 has an aspherical surface value as shown in Table 30. For example, both the object-side surface and the image-side surface of the first lens 1510 to the seventh lens 1570 are aspherical.

K A B C D E F G H J S1 -One -0.006 -0.0037 -0.012 0.01197 0.01356 -0.0351 0.02669 -0.009 0.00115 S2 -13.101 0.01484 -0.0546 -0.0452 0.12694 -0.1111 0.05601 -0.0175 0.00311 -0.0002 S3 -1.2472 -0.0205 0.01627 -0.1488 0.25175 -0.2171 0.12177 -0.045 0.00972 -0.0009 S4 -7.0515 -0.0205 0.10486 -0.3805 0.75149 -0.8792 0.62566 -0.2656 0.06174 -0.006 S5 8.9156 -0.0324 -0.0045 0.06384 -0.1003 0.05665 0.00724 -0.0234 0.01032 -0.0015 S6 1.66379 -0.0267 -0.1125 0.59826 -1.3543 1.7261 -1.3193 0.59994 -0.1494 0.01566 S7 -4.619 -0.0378 -0.0049 0.06442 -0.1511 0.17871 -0.1225 0.04791 -0.0096 0.00073 S8 5.61159 -0.0667 0.14302 -0.4869 0.93128 -1.0571 0.72412 -0.2938 0.06506 -0.006 S9 -44.124 0.05707 -0.0758 0.04539 -0.0145 0.00087 5.3E-05 0.00022 -8E-05 9.1E-06 S10 -4.9813 0.03529 -0.0999 0.10243 -0.0647 0.02598 -0.0068 0.0011 -0.0001 4E-06 S11 -15.42 0.09903 -0.1649 0.14824 -0.1003 0.04259 -0.0109 0.00165 -0.0001 4.7E-06 S12 0.17905 -0.0585 0.05308 -0.0451 0.01769 -0.0038 0.00049 -4E-05 1.5E-06 -3E-08 S13 -0.825 -0.303 0.11661 -0.0228 0.00114 0.00047 -0.0001 1.2E-05 -7E-07 1.5E-08 S14 -1.3872 -0.2937 0.18771 -0.0863 0.0269 -0.0055 0.00073 -6E-05 2.7E-06 -5E-08

In addition, the optical system configured as described above may have the aberration characteristic 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 sixteenth 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 1660 and an optical system including a seventh lens 1670 , and may further include a filter 1680 , an image sensor 1690 , and an aperture ST.

The lens characteristics of each lens (Radius of curvature, Thickness or Distance between lenses, Index, Abbe number, Effective aperture radius) Table 31 shows.

face number note radius of curvature thickness or distance refractive index Abbesu 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 image plane Infinity 0.010646 3.529142415

In the sixteenth embodiment of the present invention, the first lens 1610 has a 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 is concave in the area.

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

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

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

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

The sixth lens 1660 has a negative refractive power, a first surface of the sixth lens 1660 is convex in the paraxial region, and a second surface of the sixth lens 1660 is concave in the paraxial region.

The seventh lens 1670 has a negative refractive power, a first surface of the seventh lens 1670 is convex in the paraxial region, and a second surface of the seventh lens 1670 is concave in the paraxial region.

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

In addition, 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 convex toward the edge.

On the other hand, each surface of the first lens 1610 to the seventh lens 1670 has an aspherical surface value as shown in Table 32. As shown in FIG. For example, both the object-side surface and the image-side surface of the first lens 1610 to the seventh lens 1670 are aspherical.

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

In addition, the optical system configured as described above may have the aberration characteristic shown in FIG. 32 .

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

The imaging optical system according to the seventeenth 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 1760 and an optical system including a seventh lens 1770 , and may further include a filter 1780 , an image sensor 1790 , and an aperture ST.

The lens characteristics of each lens (Radius of curvature, Thickness or Distance between lenses, Index, Abbe number, Effective aperture radius) Table 33 shows.

face number note radius of curvature thickness or distance refractive index Abbesu 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 image plane Infinity -0.02 3.276451571

In the seventeenth embodiment of the present invention, the first lens 1710 has a 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 is concave in the area.

The second lens 1720 has a negative refractive power, a first surface of the second lens 1720 is convex in the paraxial region, and a second surface of the second lens 1720 is concave in the paraxial region. The stopper ST is disposed between the first lens 1710 and the second lens 1720 .

The third lens 1730 has a positive refractive power, a first surface of the third lens 1730 is convex in the paraxial region, and a second surface of the third lens 1730 is concave in the paraxial region.

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

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

The sixth lens 1760 has positive refractive power, and the first and second surfaces of the sixth lens 1760 are convex in the paraxial region.

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

In addition, 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 concave in the paraxial region and convex toward the edge.

In addition, 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 convex toward the edge.

On the other hand, each surface of the first lens 1710 to the seventh lens 1770 has an aspherical surface value as shown in Table 34. For example, both the object-side surface and the image-side surface of the first lens 1710 to the seventh lens 1770 are aspherical.

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

In addition, the optical system configured as described above may have the aberration characteristic 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 .

An imaging optical system according to an eighteenth 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 1860 and an optical system including a seventh lens 1870 , and may further include a filter 1880 , an image sensor 1890 , and an aperture ST.

The lens characteristics of each lens (Radius of curvature, Thickness or Distance between lenses, Index, Abbe number, Effective aperture radius) Table 35 shows.

face number note radius of curvature thickness or distance refractive index Abbesu 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 image plane Infinity 0.02 3.291609937

In the eighteenth embodiment of the present invention, the first lens 1810 has a 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 is concave in the area.

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

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

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

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

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

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

In addition, one inflection point is formed on the second surface of the seventh lens 1870 . For example, the second surface of the seventh lens 1870 may be concave in the paraxial region and convex toward the edge.

On the other hand, each surface of the first lens 1810 to the seventh lens 1870 has an aspherical surface value as shown in Table 36. For example, both the object-side surface and the image-side surface of the first lens 1810 to the seventh lens 1870 are aspherical.

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

In addition, the optical system configured as described above may have the aberration characteristic shown in FIG. 36 .

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

The imaging optical system according to the nineteenth 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 the seventh lens 1970, and may further include a filter 1980, an image sensor 1990, and a stopper (ST).

The lens characteristics of each lens (Radius of curvature, Thickness or Distance between lenses, Index, Abbe number, Effective aperture radius) Table 37 shows.

face number note radius of curvature thickness or distance refractive index Abbesu effective radius S1 first lens 1.672254 0.7738 1.55 56.11 1.35 S2 6.857015 0.02 1.26 S3 second lens 2.191778 0.15 1.66 20.40 1.14 S4 1.616242 0.342515 1.00 S5 third lens 4.211432 0.212112 1.66 20.40 0.99 S6 3.706663 0.17539 1.07 S7 4th lens 13.05984 0.552722 1.55 56.11 1.17 S8 -10.8786 0.321736 1.34 S9 5th lens -7.26453 0.16548 1.65 21.49 1.45 S10 -20.0451 0.129473 1.73 S11 6th lens 6.652839 0.862773 1.65 21.49 1.73 S12 6.231677 0.142 2.30 S13 7th lens 2.11211 0.562819 1.54 55.71 3.10 S14 1.545997 0.207518 2.87 S15 filter Infinity 0.11 3.16 S16 Infinity 0.533016 3.20 S17 image plane Infinity -0.00202 3.54

In the nineteenth embodiment of the present invention, the first lens 1910 has a 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 is concave in the area.

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

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

The fourth lens 1940 has positive refractive power, and the first and second surfaces of the fourth lens 1940 are convex in the paraxial region.

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

The sixth lens 1960 has a negative refractive power, a first surface of the sixth lens 1960 is convex in the paraxial region, and a second surface of the sixth lens 1960 has a concave shape in the paraxial region.

The seventh lens 1970 has a negative refractive power, a first surface of the seventh lens 1970 is convex in the paraxial region, and a second surface of the seventh lens 1970 has a concave shape in the paraxial region.

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

In addition, 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 convex toward the edge.

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

K A B C D E F G H S1 -0.0875 0.0043 0.0051 -0.0107 0.0157 -0.0116 0.0042 -0.0006 0 S2 25.239 -0.0649 0.2073 -0.4137 0.472 -0.3196 0.119 -0.019 0 S3 -1.7461 -0.1041 0.3118 -0.5508 0.6169 -0.4129 0.1566 -0.0264 0 S4 -0.0238 -0.0685 0.11 -0.0081 -0.2137 0.4018 -0.2921 0.0875 0 S5 0.8405 -0.0823 0.0538 -0.0046 -0.0765 0.1601 -0.1299 0.0421 0 S6 6.608 -0.1086 0.0588 -0.0507 0.048 -0.0168 0.001 0.0003 0 S7 21.918 -0.0385 -0.0011 0.0112 -0.0177 0.0301 -0.0163 0.0027 0 S8 25.736 -0.0248 -0.0082 -0.0047 0.0083 -0.0029 0.0004 -2E-05 0 S9 1.6857 -0.0267 0.0322 -0.1034 0.0865 -0.0378 0.0096 -0.0012 0 S10 69.409 -0.0298 0.003 -0.0334 0.0256 -0.0076 0.001 -5E-05 0 S11 -52.836 0.0057 -0.0573 0.0402 -0.0183 0.0046 -0.0006 3E-05 0 S12 -34.09 -0.0239 -0.0095 0.0073 -0.0028 0.0006 -6E-05 3E-06 0 S13 -0.9427 -0.2417 0.0607 -0.0015 -0.0024 0.0006 -7E-05 4E-06 -8E-08 S14 -1.0048 -0.2102 0.0796 -0.0236 0.0052 -0.0008 7E-05 -3E-06 7E-08

In addition, the optical system configured as described above may have the aberration characteristic 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. 2060 and an optical system including a seventh lens 2070 , and may further include a filter 2080 , an image sensor 2090 and an aperture ST.

The lens characteristics of each lens (Radius of curvature, Thickness or Distance between lenses, Index, Abbe number, Effective aperture radius) Table 39 shows.

face number note radius of curvature thickness or distance refractive index Abbesu effective radius S1 first lens 1.672254 0.763038 1.55 56.11 1.36 S2 6.857015 0.02 1.28 S3 second lens 2.191778 0.15 1.66 20.40 1.16 S4 1.616242 0.376845 1.03 S5 third lens 4.211432 0.216572 1.66 20.40 0.99 S6 3.706663 0.1647 1.06 S7 4th lens 13.05984 0.453662 1.55 56.11 1.15 S8 -10.8786 0.306645 1.29 S9 5th lens -7.26453 0.212383 1.65 21.49 1.46 S10 -20.0451 0.110875 1.73 S11 6th lens 6.652839 0.862773 1.65 21.49 1.73 S12 6.231677 0.152019 2.30 S13 7th lens 2.11211 0.629635 1.54 55.71 3.10 S14 1.545997 0.195628 2.89 S15 filter Infinity 0.11 3.18 S16 Infinity 0.521737 3.22 S17 image plane Infinity 0.014955 3.53

In the 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 is concave in the area.

The second lens 2020 has a negative refractive power, a first surface of the second lens 2020 is convex in the paraxial region, and a second surface of the second lens 2020 is concave in the paraxial region. The diaphragm ST is disposed between the first lens 2010 and the second lens 2020 .

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

The fourth lens 2040 has positive refractive power, and the first and second surfaces of the fourth lens 2040 are convex in the paraxial region.

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

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

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

In addition, one inflection point is 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 and concave toward the edge.

In addition, 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 convex toward the edge.

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

K A B C D E F G H S1 -0.0875 0.0043 0.0051 -0.0107 0.0157 -0.0116 0.0042 -0.0006 0 S2 25.239 -0.0649 0.2073 -0.4137 0.472 -0.3196 0.119 -0.019 0 S3 -1.7461 -0.1041 0.3118 -0.5508 0.6169 -0.4129 0.1566 -0.0264 0 S4 -0.0238 -0.0685 0.11 -0.0081 -0.2137 0.4018 -0.2921 0.0875 0 S5 0.8405 -0.0823 0.0538 -0.0046 -0.0765 0.1601 -0.1299 0.0421 0 S6 6.608 -0.1086 0.0588 -0.0507 0.048 -0.0168 0.001 0.0003 0 S7 21.918 -0.0385 -0.0011 0.0112 -0.0177 0.0301 -0.0163 0.0027 0 S8 25.736 -0.0248 -0.0082 -0.0047 0.0083 -0.0029 0.0004 -2E-05 0 S9 1.6857 -0.0267 0.0322 -0.1034 0.0865 -0.0378 0.0096 -0.0012 0 S10 69.409 -0.0298 0.003 -0.0334 0.0256 -0.0076 0.001 -5E-05 0 S11 -52.836 0.0057 -0.0573 0.0402 -0.0183 0.0046 -0.0006 3E-05 0 S12 -34.09 -0.0239 -0.0095 0.0073 -0.0028 0.0006 -6E-05 3E-06 0 S13 -0.9427 -0.2417 0.0607 -0.0015 -0.0024 0.0006 -7E-05 4E-06 -8E-08 S14 -1.0048 -0.2102 0.0796 -0.0236 0.0052 -0.0008 7E-05 -3E-06 7E-08

In addition, the optical system configured as described above may have the aberration characteristic 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 twenty-first 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. 2160 and an optical system including a seventh lens 2170 , and may further include a filter 2180 , an image sensor 2190 , and an aperture ST.

The lens characteristics of each lens (Radius of curvature, Thickness or Distance between lenses, Index, Abbe number, Effective aperture radius) Table 41 shows.

face number note radius of curvature thickness or distance refractive index Abbesu 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 image plane Infinity 0.009946

In the twenty-first embodiment of the present invention, the first lens 2110 has a 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 is concave in the area.

The second lens 2120 has a positive refractive power, a first surface of the second lens 2120 is convex in the paraxial region, and a second surface of the second lens 2120 is concave in the paraxial region. The diaphragm ST is disposed between the first lens 2110 and the second lens 2120 .

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

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

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

The sixth lens 2160 has positive refractive power, and the first and second surfaces of the sixth lens 2160 are convex in the paraxial region.

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

In addition, two inflection points are formed on the first surface of the seventh lens 2170 . For example, the first surface of the seventh lens 2170 may be concave in the paraxial region, convex outside the paraxial region, and concave toward the edge.

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

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

In addition, the optical system configured as described above may have the aberration characteristic 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 twenty-second 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. 2260 and an optical system including a seventh lens 2270 , and may further include a filter 2280 , an image sensor 2290 , and an aperture ST.

The lens characteristics of each lens (Radius of curvature, Thickness or Distance between lenses, Index, Abbe number, Effective aperture radius) Table 43 shows.

face number note radius of curvature thickness or distance refractive index Abbesu effective radius S0 Infinity 0 1.798 S1 first lens 1.900246 0.745113 1.546 56.114 1.333 S2 12.01797 0.031785 1.275 S3 second lens 7.105147 0.228148 1.667 20.353 1.244 S4 3.509972 0.348758 1.141 S5 iris Infinity 0 1.205 S6 third lens 24.3886 0.459414 1.546 56.114 1.175 S7 62.53356 0.180582 1.274 S8 4th lens 11.10403 0.28 1.667 20.353 1.280 S9 13.72056 0.379284 1.448 S10 5th lens -4.77188 0.546513 1.546 56.114 1.853 S11 -1.71685 0.051852 2.170 S12 6th lens -6.60097 0.558512 1.546 56.114 2.409 S13 -4.17937 0.372518 2.655 S14 7th lens -4.57649 0.414815 1.546 56.114 3.009 S15 2.2E+00 0.141964 3.37037 S16 filter Infinity 0.114074 1.518 64.16641 3.864216 S17 Infinity 0.741292 3.903345 S18 image plane Infinity 0.005383 4.326018

In the twenty-second embodiment of the present invention, the first lens 2210 has a 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 is concave in the area.

The second lens 2220 has a negative refractive power, a first surface of the second lens 2220 is convex in the paraxial region, and a second surface of the second lens 2220 is concave in the paraxial region. The diaphragm ST is disposed between the first lens 2210 and the second lens 2220 .

The third lens 2230 has a positive refractive power, a first surface of the third lens 2230 is convex in the paraxial region, and a second surface of the third lens 2230 is concave in the paraxial region.

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

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

The sixth lens 2260 has a positive refractive power, a first surface of the sixth lens 2260 is concave in the paraxial region, and a second surface of the sixth lens 2260 is convex in the paraxial region.

The seventh lens 2270 has a negative refractive power, and the first and second surfaces of the seventh lens 2270 are concave in the paraxial region.

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

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

K A B C D E F G H J S1 -0.9474 0.01532 0.01685 -0.037 0.06054 -0.0609 0.03661 -0.0123 0.0017 0 S2 -30.447 -0.1419 0.43283 -0.798 0.97201 -0.7804 0.38946 -0.1078 0.01244 0 S3 6.01402 -0.1777 0.51041 -0.9603 1.25601 -1.0984 0.60482 -0.1853 0.02373 0 S4 -0.421 -0.0597 0.1562 -0.2512 0.29455 -0.2097 0.07608 -0.0015 -0.0042 0 S6 0 -0.0469 0.01011 -0.0076 -0.0395 0.08831 -0.0878 0.04425 -0.0087 0 S7 0 -0.116 0.09293 -0.2202 0.37209 -0.3982 0.24503 -0.0797 0.01043 0 S8 -7.5 -0.1862 0.04273 -0.0355 -0.0447 0.21236 -0.2603 0.13349 -0.0249 0 S9 -43.343 -0.1172 0.0133 0.00326 -0.0126 0.03781 -0.0404 0.01766 -0.0026 0 S10 -44.496 -0.0891 0.14043 -0.1469 0.09433 -0.0347 0.00517 0.00026 -0.0001 0 S11 -1.6506 0.07781 -0.0605 0.03731 -0.0172 0.00587 -0.0013 0.00015 -7E-06 0 S12 2.03896 0.16692 -0.1825 0.11151 -0.0456 0.01136 -0.0016 0.00012 -4E-06 0 S13 -0.4347 0.15501 -0.1544 0.08127 -0.0271 0.00578 -0.0008 5.4E-05 -2E-06 0 S14 -2.5068 -0.0042 -0.0908 0.05928 -0.017 0.00273 -0.0003 1.3E-05 -3E-07 0 S15 -1.4448 -0.1279 0.04264 -0.0109 0.00223 -0.0004 4E-05 -3E-06 1.2E-07 -2E-09

In addition, the optical system configured as described above may have the aberration characteristic 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 twenty-third 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. 2360 and an optical system including a seventh lens 2370 , and may further include a filter 2380 , an image sensor 2390 , and an aperture ST.

The lens properties of each lens (Radius of curvature, Thickness or Distance between lenses, Index, Abbe number, Effective aperture radius) Table 45 shows.

face number note radius of curvature thickness or distance refractive index Abbesu effective radius S1 first lens 2.266953728 0.4 1.546 56.114 1.380 S2 2.669137967 0.0250635 1.337 S3 second lens 2.623824881 0.8 1.546 56.114 1.337 S4 -11.8758231 0.025 1.298 S5 third lens 19.00320484 0.2526007 1.679 19.236 1.202 S6 4.067642359 0.4108424 1.242 S7 4th lens 6.69913266 0.35 1.679 19.236 1.265 S8 7.219976522 0.4295582 1.369 S9 5th lens 21.53098541 0.35 1.546 56.114 1.600 S10 7.891788096 0.025 1.853 S11 6th lens 2.50304521 0.43 1.546 56.114 1.908 S12 2.4092608 0.2398918 2.372 S13 7th lens 1.327452067 0.5253623 1.546 56.114 2.507 S14 1.19470686 0.3215245 2.738 S15 filter Infinity 0.21 1.518 64.197 3.205 S16 Infinity 0.6901565 3.285 S17 image plane Infinity 0.015 3.781

In the twenty-third embodiment of the present invention, the first lens 2310 has a 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 is concave in the area.

The second lens 2320 has positive refractive power, and the first and second surfaces of the second lens 2320 are convex in the paraxial region.

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

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

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

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

The seventh lens 2370 has positive refractive power, a first surface of the seventh lens 2370 is convex in the paraxial region, and a second surface of the seventh lens 2360 is concave in the paraxial region.

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

In addition, 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 convex toward the edge.

On the other hand, each surface of the first lens 2310 to the seventh lens 2370 has an aspherical surface value as shown in Table 46. For example, both the object-side surface and the image-side surface of the first lens 2310 to the seventh lens 2370 are aspherical.

K A B C D E F G H J S1 -One 0.00124 -0.0631 0.08838 -0.0759 -0.0183 0.08244 -0.0602 0.01898 -0.0023 S2 -11.056 0.03802 0.1354 -0.9871 1.56411 -1.0995 0.32652 0.01084 -0.0287 0.00476 S3 -0.7436 -0.0807 0.57903 -1.9725 2.93458 -2.2115 0.82233 -0.0859 -0.0317 0.00756 S4 -7.2488 -0.1245 0.58766 -1.6544 2.89527 -3.2415 2.31185 -1.0127 0.24733 -0.0257 S5 12.3372 -0.1601 0.47507 -0.9119 1.14181 -0.9059 0.42126 -0.0904 -0.0021 0.0031 S6 -0.7614 -0.0925 0.17494 -0.2349 0.22825 -0.1666 0.07717 -0.0124 -0.0054 0.00212 S7 -12.018 0.04701 -0.734 2.69199 -5.8982 8.06267 -6.9318 3.6331 -1.0592 0.13158 S8 5.83969 -0.055 0.02382 -0.178 0.4679 -0.6732 0.58024 -0.2983 0.08447 -0.0101 S9 -43.467 0.02077 -0.0298 0.06441 -0.1157 0.10183 -0.0488 0.0125 -0.0016 7.1E-05 S10 -10.152 -0.0392 0.01463 0.02558 -0.0749 0.06753 -0.0305 0.00743 -0.0009 4.7E-05 S11 -16.19 0.09146 -0.1594 0.2045 -0.2282 0.1461 -0.0541 0.01173 -0.0014 6.9E-05 S12 -0.0871 -0.1985 0.32772 -0.3309 0.18662 -0.0647 0.01412 -0.0019 0.00014 -4E-06 S13 -0.8728 -0.462 0.28732 -0.1331 0.04466 -0.0104 0.00163 -0.0002 9.4E-06 -2E-07 S14 -1.5388 -0.3036 0.18437 -0.0807 0.02315 -0.0042 0.00046 -3E-05 1E-06 -1E-08

In addition, the optical system configured as described above may have the aberration characteristic 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.

The imaging optical system according to the twenty-fourth 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. 2460 and an optical system including a seventh lens 2470 , and may further include a filter 2480 , an image sensor 2490 , and an aperture ST.

The lens characteristics of each lens (Radius of curvature, Thickness or Distance between lenses, Index, Abbe number, Effective aperture radius) Table 47 shows.

face number note radius of curvature thickness or distance refractive index Abbesu 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 0.370783 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 image plane Infinity 0.0142573 3.731

In the twenty-fourth embodiment of the present invention, the first lens 2410 has a 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 is concave in the area.

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

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

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

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

The sixth lens 2460 has a negative refractive power, and the first and second surfaces of the sixth lens 2460 are concave in the paraxial region.

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

In addition, 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 convex toward the edge.

In addition, 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 convex toward the edge.

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

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

In addition, the optical system configured as described above may have the aberration characteristic 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 twenty-fifth 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 includes an optical system including a 2560 and a seventh lens 2570 , and may further include a filter 2580 , an image sensor 2590 , and an aperture ST.

The lens characteristics of each lens (Radius of curvature, Thickness or Distance between lenses, Index, Abbe number, Effective aperture radius) Table 49 shows.

face number note radius of curvature thickness or distance refractive index Abbesu 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 image plane Infinity 0.0098807 3.728

In the twenty-fifth embodiment of the present invention, the first lens 2510 has a 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 is concave in the area.

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

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

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

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

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

The seventh lens 2570 has a negative refractive power, and the first and second surfaces of the seventh lens 2570 are concave in the paraxial region.

In addition, 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 convex toward the edge.

On the other hand, each surface of the first lens 2510 to the seventh lens 2570 has an aspherical surface value as shown in Table 50. For example, both the object-side surface and the image-side surface of the first lens 2510 to the seventh lens 2570 are aspherical.

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

In addition, the optical system configured as described above may have the aberration characteristic shown in FIG. 50 .

An imaging optical system according to a twenty-sixth embodiment of the present invention will be described with reference to FIGS. 51 and 52 .

The imaging optical system according to the twenty-sixth embodiment of the present invention includes a first lens 2610 , a second lens 2620 , a third lens 2630 , a fourth lens 2640 , a fifth lens 2650 , and a sixth lens. 2660 and an optical system including a seventh lens 2670 , and may further include a filter 2680 , an image sensor 2690 , and an aperture ST.

The lens characteristics of each lens (Radius of curvature, Thickness or Distance between lenses, Index, Abbe number, Effective aperture radius) Table 51 shows.

face number note radius of curvature thickness or distance refractive index Abbesu 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 image plane Infinity -0.003728 4.129

In the twenty-sixth embodiment of the present invention, the first lens 2610 has a positive refractive power, the first surface of the first lens 2610 is convex in the paraxial region, and the second surface of the first lens 2610 is paraxial It is concave in the area.

The second lens 2620 has a negative refractive power, a first surface of the second lens 2620 is convex in the paraxial region, and a second surface of the second lens 2620 is concave in the paraxial region.

The third lens 2630 has a positive refractive power, a first surface of the third lens 2630 is concave in the paraxial region, and a second surface of the third lens 2630 is convex in the paraxial region. The stopper ST is disposed between the second lens 2620 and the third lens 2630 .

The fourth lens 2640 has a positive refractive power, a first surface of the fourth lens 2640 is convex in the paraxial region, and a second surface of the fourth lens 2640 is concave in the paraxial region.

The fifth lens 2650 has a negative refractive power, a first surface of the fifth lens 2650 is convex in the paraxial region, and a second surface of the fifth lens 2650 is concave in the paraxial region.

The sixth lens 2660 has a positive refractive power, a first surface of the sixth lens 2660 is convex in the paraxial region, and a second surface of the sixth lens 2660 is concave in the paraxial region.

The seventh lens 2670 has a positive refractive power, a first surface of the seventh lens 2670 is convex in the paraxial region, and a second surface of the seventh lens 2670 is concave in the paraxial region.

In addition, two inflection points are formed on the first surface of the seventh lens 2670 . For example, the first surface of the seventh lens 2670 may be convex in the paraxial region, concave outside the paraxial region, and convex toward the edge.

In addition, one inflection point is formed on the second surface of the seventh lens 2670 . For example, the second surface of the seventh lens 2670 may be concave in the paraxial region and convex toward the edge.

Meanwhile, each surface of the first lens 2610 to the seventh lens 2670 has an aspherical surface value as shown in Table 52. For example, both the object-side surface and the image-side surface of the first lens 2610 to the seventh lens 2670 are aspherical.

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

In addition, the optical system configured as described above may have the aberration characteristic shown in FIG. 52 .

An imaging optical system according to a twenty-seventh embodiment of the present invention will be described with reference to FIGS. 53 and 54 .

The imaging optical system according to the twenty-seventh embodiment of the present invention includes a first lens 2710 , a second lens 2720 , a third lens 2730 , a fourth lens 2740 , a fifth lens 2750 , and a sixth lens 2760 and an optical system including a seventh lens 2770 , and may further include a filter 2780 , an image sensor 2790 , and an aperture ST.

The lens characteristics of each lens (Radius of curvature, Thickness or Distance between lenses, Index, Abbe number, Effective aperture radius) Table 53 shows.

face number note radius of curvature thickness or distance refractive index Abbesu 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 image plane Infinity 0.015 4.134

In the twenty-seventh embodiment of the present invention, the first lens 2710 has a positive refractive power, the first surface of the first lens 2710 is convex in the paraxial region, and the second surface of the first lens 2710 is paraxial It is concave in the area.

The second lens 2720 has a negative refractive power, a first surface of the second lens 2720 is convex in the paraxial region, and a second surface of the second lens 2720 is concave in the paraxial region.

The third lens 2730 has a positive refractive power, a first surface of the third lens 2730 is concave in the paraxial region, and a second surface of the third lens 2730 is convex in the paraxial region. The diaphragm ST is disposed between the second lens 2720 and the third lens 2730 .

The fourth lens 2740 has a positive refractive power, a first surface of the fourth lens 2740 is convex in the paraxial region, and a second surface of the fourth lens 2740 is concave in the paraxial region.

The fifth lens 2750 has a negative refractive power, a first surface of the fifth lens 2750 is convex in the paraxial region, and a second surface of the fifth lens 2750 is concave in the paraxial region.

The sixth lens 2760 has positive refractive power, a first surface of the sixth lens 2760 is convex in the paraxial region, and a second surface of the sixth lens 2760 has a concave shape in the paraxial region.

The seventh lens 2770 has positive refractive power, a first surface of the seventh lens 2770 is convex in the paraxial region, and a second surface of the seventh lens 2770 is concave in the paraxial region.

In addition, two inflection points are formed on the first surface of the seventh lens 2770 . For example, the first surface of the seventh lens 2770 may be convex in the paraxial region, concave outside the paraxial region, and convex toward the edge.

In addition, one inflection point is formed on the second surface of the seventh lens 2770 . For example, the second surface of the seventh lens 2770 may be concave in the paraxial region and convex toward the edge.

On the other hand, each surface of the first lens 2710 to the seventh lens 2770 has an aspherical surface value as shown in Table 54. For example, both the object-side surface and the image-side surface of the first lens 2710 to the seventh lens 2770 are aspherical.

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

In addition, the optical system configured as described above may have the aberration characteristic shown in FIG. 54 .

An imaging optical system according to a twenty-eighth embodiment of the present invention will be described with reference to FIGS. 55 and 56 .

The imaging optical system according to the twenty-eighth embodiment of the present invention includes a first lens 2810, a second lens 2820, a third lens 2830, a fourth lens 2840, a fifth lens 2850, and a sixth lens. 2860 and an optical system including a seventh lens 2870 , and may further include a filter 2880 , an image sensor 2890 , and an aperture ST.

The lens characteristics of each lens (Radius of curvature, Thickness or Distance between lenses, Index, Abbe number, Effective aperture radius) Table 55 shows.

face number note radius of curvature thickness or distance refractive index Abbesu effective radius S1 first lens 2.281286206 0.4941042 1.546 56.114 1.640 S2 2.718984257 0.130834 1.629 S3 second lens 2.708968394 0.6 1.546 56.114 1.595 S4 37.24513877 0.025 1.593 S5 third lens 11.09599614 0.23 1.679 19.236 1.522 S6 4.325963413 0.4819872 1.450 S7 4th lens 8.709066519 0.3517002 1.656 21.525 1.514 S8 14.98893268 0.4925536 1.555 S9 5th lens 5.340621183 0.4256859 1.679 19.236 1.840 S10 2.972144757 0.1952429 2.415 S11 6th lens 2.121089724 0.5425262 1.546 56.114 2.362 S12 4.981824211 0.4212041 2.717 S13 7th lens 2.499873488 0.5046002 1.546 56.114 3.169 S14 1.479444218 0.222977 3.372 S15 filter Infinity 0.21 1.518 64.197 3.779 S16 Infinity 0.6565509 3.848 S17 image plane Infinity 0.015 4.210

In the twenty-eighth embodiment of the present invention, the first lens 2810 has a positive refractive power, the first surface of the first lens 2810 is convex in the paraxial region, and the second surface of the first lens 2810 is paraxial It is concave in the area.

The second lens 2820 has a positive refractive power, a first surface of the second lens 2820 is convex in the paraxial region, and a second surface of the second lens 2820 is concave in the paraxial region.

The third lens 2830 has a negative refractive power, a first surface of the third lens 2830 is convex in the paraxial region, and a second surface of the third lens 2830 is concave in the paraxial region. The stop ST is disposed between the second lens 2820 and the third lens 2830 .

The fourth lens 2840 has a positive refractive power, a first surface of the fourth lens 2840 is convex in the paraxial region, and a second surface of the fourth lens 2840 is concave in the paraxial region.

The fifth lens 2850 has a negative refractive power, a first surface of the fifth lens 2850 is convex in the paraxial region, and a second surface of the fifth lens 2850 is concave in the paraxial region.

The sixth lens 2860 has a positive refractive power, a first surface of the sixth lens 2860 is convex in the paraxial region, and a second surface of the sixth lens 2860 is concave in the paraxial region.

The seventh lens 2870 has a negative refractive power, a first surface of the seventh lens 2870 is convex in the paraxial region, and a second surface of the seventh lens 2870 has a concave shape in the paraxial region.

In addition, one inflection point is formed on the first surface of the seventh lens 2870 . For example, the first surface of the seventh lens 2870 may be convex in the paraxial region and concave toward the edge.

In addition, one inflection point is formed on the second surface of the seventh lens 2870 . For example, the second surface of the seventh lens 2870 may be concave in the paraxial region and convex toward the edge.

On the other hand, each surface of the first lens 2810 to the seventh lens 2870 has an aspherical surface value as shown in Table 56. For example, both the object-side surface and the image-side surface of the first lens 2810 to the seventh lens 2870 are aspherical.

K A B C D E F G H J S1 -0.9867 -0.0114 0.01114 -0.0538 0.09172 -0.0925 0.05422 -0.0183 0.00331 -0.0003 S2 -12.035 0.04793 -0.173 0.26373 -0.3194 0.25969 -0.1301 0.03858 -0.0062 0.00042 S3 -0.9455 -0.0107 -0.0528 0.10537 -0.1922 0.21871 -0.1388 0.04987 -0.0096 0.00078 S4 3.03842 -0.0418 0.21624 -0.5714 0.81428 -0.6941 0.36425 -0.1154 0.02022 -0.0015 S5 10.1638 -0.0842 0.25831 -0.5961 0.84391 -0.7413 0.40425 -0.1328 0.02406 -0.0018 S6 2.08088 -0.0648 0.14243 -0.2905 0.40945 -0.3776 0.22243 -0.0802 0.01628 -0.0014 S7 -13.097 -0.0215 -0.0518 0.14502 -0.2583 0.27772 -0.1843 0.07327 -0.0157 0.00138 S8 5.85919 -0.0435 0.0377 -0.0856 0.10737 -0.0887 0.04789 -0.0161 0.00312 -0.0003 S9 -43.521 -0.0279 0.02278 0.01043 -0.0468 0.04676 -0.0253 0.00785 -0.0013 9.2E-05 S10 -17.628 -0.0671 0.04256 -0.0048 -0.0103 0.00685 -0.0022 0.00038 -4E-05 1.4E-06 S11 -9.8081 0.04258 -0.1025 0.09185 -0.0514 0.01771 -0.0039 0.00056 -5E-05 1.6E-06 S12 -0.0695 0.00481 -0.0496 0.03792 -0.0164 0.00397 -0.0005 3.5E-05 -8E-07 -1E-08 S13 -0.6908 -0.2261 0.04088 0.01294 -0.0077 0.00168 -0.0002 1.5E-05 -6E-07 9.5E-09 S14 -1.419 -0.2123 0.09039 -0.0281 0.00628 -0.001 9.3E-05 -6E-06 1.8E-07 -2E-09

In addition, the optical system configured as described above may have the aberration characteristic shown in FIG. 56 .

Example f TTL SL Fno Img HT FOV One 4.824 6.000 5.071 1.51 4.000 78.10 2 4.803 6.000 5.046 1.48 4.000 78.40 3 4.650 5.400 4.423 1.80 4.000 80.00 4 4.804 5.750 4.688 1.60 3.930 77.10 5 4.780 5.827 4.402 1.57 4.050 79.02 6 3.950 4.819 3.650 1.58 3.250 77.47 7 4.350 5.300 4.917 1.58 3.384 79.58 8 4.020 4.901 4.565 1.58 3.400 79.28 9 4.784 5.787 5.364 1.58 4.000 78.52 10 4.280 5.100 4.369 1.71 3.535 77.84 11 4.450 5.400 4.669 1.69 3.261 71.28 12 4.144 5.026 4.299 1.58 3.261 75.78 13 4.401 5.300 4.142 1.69 3.728 79.31 14 4.511 5.500 4.420 1.66 3.728 77.85 15 4.823 5.865 4.687 1.66 3.728 73.38 16 4.447 5.144 4.894 2.07 3.528 75.63 17 4.400 5.200 4.576 1.81 3.261 72.55 18 3.994 5.125 4.484 1.57 3.261 77.38 19 4.390 5.260 4.310 1.67 3.528 76.69 20 4.340 5.260 4.320 1.62 3.528 76.91 21 4.020 4.940 3.938 1.58 3.226 76.00 22 4.594 5.600 4.855 1.72 4.200 83.44 23 4.498 5.500 4.250 1.63 3.728 78.01 24 4.586 5.461 4.510 1.79 3.728 76.96 25 4.302 5.240 4.368 1.95 3.728 80.46 26 4.966 5.993 5.127 2.36 4.128 78.45 27 4.667 5.797 4.893 1.85 4.128 81.80 28 4.870 6.000 4.750 1.48 4.200 80.29

In Table 57, f is the total focal length of the imaging optical system, TTL is the on-axis distance from the object-side surface 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 indicating the brightness of the imaging optical system, IMG HT is half the diagonal length of the imaging plane 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 4.756 -12.434 26.345 -55.140 -12.854 2.765 -2.459 2 4.773 -12.361 26.634 -55.618 -12.673 2.699 -2.432 3 4.178 -8.893 18.275 37.848 -15.676 30.527 -16.070 4 4.277 -10.455 21.003 35.561 -16.519 80.332 -15.182 5 10.035 5.292 -7.613 22346862.05 86.584 -27.728 146.074 6 8.409 4.355 -6.520 -4512.292 74.369 -22.452 1842.731 7 -64.233 3.248 -7.428 -43.722 52.425 3.010 -2.424 8 -38.662 2.911 -6.813 -43.728 59.023 2.640 -2.116 9 -104.603 3.650 -8.142 -56.419 57.869 3.443 -2.762 10 3.596 -7.349 -1245 15.657 -19.723 2.662 -2.171 11 3.631 -7.630 -365 15.385 -24.532 2.360 -1.874 12 3.570 -7.440 -291.941 16.218 -22.370 2.450 -2.041 13 9.952 4.985 -9.042 -60.959 28.461 -19.130 -36.205 14 12.217 6.017 -9.925 25.358 28.723 -32.884 -16.737 15 13.664 6.556 -11.435 32.295 28.328 -36.885 -22.967 16 3.626 -6.978 10.551 125.381 -28.155 -367.720 -9.031 17 4.290 -10.606 30.978 14.871 -21.133 3.784 -2.465 18 5.677 -73.551 -122.716 15.510 207.375 3.799 -2.466 19 3.840 -10.270 -55.690 10.940 -17.400 -800 -16.450 20 3.840 -10.270 -55.930 10.930 -17.430 -800 -17.560 21 4.858 13.152 -8.241 -32.625 34.583 2.462 -2.100 22 4.030 -10.672 72.926 83.723 4.620 19.296 -2.686 23 20.370 4.011 -7.669 107.453 -23.005 189.703 54.850 24 3.808 -9.408 -530.750 22.837 -27.105 -22.324 66.015 25 3.620 -10.428 39.821 -38.762 4.342 10.303 -2.323 26 3.802 -8.955 64.595 12384.769 -17.503 299.093 57.797 27 4.499 -15.674 39.058 453.779 -18.160 102.612 59.134 28 18.537 5.313 -10.580 30.673 -10.636 6.334 -8.036

In Table 58, 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 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 0.271 0.346 0.259 0.354 0.283 0.265 0.818 2 0.271 0.342 0.266 0.339 0.283 0.266 0.806 3 0.255 0.312 0.260 0.261 0.275 0.395 0.447 4 0.226 0.349 0.220 0.222 0.283 0.752 0.546 5 0.282 0.313 0.416 0.237 0.325 0.371 0.382 6 0.233 0.259 0.333 0.203 0.272 0.330 0.376 7 0.220 0.270 0.348 0.224 0.259 0.269 0.437 8 0.194 0.250 0.328 0.211 0.239 0.222 0.388 9 0.246 0.297 0.392 0.244 0.286 0.286 0.301 10 0.222 0.377 0.235 0.240 0.189 0.260 0.323 11 0.172 0.340 0.207 0.355 0.401 0.262 0.680 12 0.163 0.350 0.257 0.281 0.193 0.260 0.446 13 0.257 0.255 0.340 0.276 0.365 0.307 0.278 14 0.253 0.255 0.486 0.252 0.361 0.490 0.409 15 0.286 0.336 0.498 0.261 0.427 0.497 0.489 16 0.269 0.308 0.190 0.230 0.410 0.714 0.300 17 0.205 0.407 0.201 0.333 0.278 0.348 0.815 18 0.218 0.347 0.211 0.259 0.277 0.251 0.950 19 0.190 0.220 0.230 0.320 0.210 0.570 0.700 20 0.170 0.230 0.240 0.250 0.230 0.590 0.770 21 0.212 0.210 0.351 0.213 0.236 0.357 0.445 22 0.243 0.339 0.258 0.397 0.274 0.340 0.567 23 0.267 0.396 0.384 0.400 0.228 0.589 0.342 24 0.231 0.289 0.255 0.254 0.360 0.476 0.658 25 0.252 0.293 0.238 0.374 0.258 0.415 0.686 26 0.293 0.298 0.252 0.251 0.409 0.715 0.678 27 0.246 0.280 0.254 0.273 0.356 0.630 0.692 28 0.252 0.160 0.429 0.302 0.430 0.391 0.433

In Table 59, 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 fourth lens is the thickness of the edge (edge) of the lens, L5edgeT is the thickness of the edge (edge) of the fifth lens, L6edgeT is the thickness of the edge (edge) of the sixth lens, and L7edgeT is the thickness of the edge (edge) of the seventh lens to be.

Example L5S1 sag L5S2 sag Yc71P1 Yc71P2 Yc72P1 One -0.447 -0.533 1.324 - 0.931 2 -0.426 -0.531 1.329 - 0.929 3 -0.392 -0.434 0.613 0.621 0.71 4 -0.404 -0.356 0.837 0.815 0.946 5 0.197 0.199 0.678 0.803 0.795 6 0.200 0.202 0.568 0.67 0.667 7 0.115 0.139 0.93 - 0.811 8 0.123 0.129 0.859 - 0.769 9 0.162 0.188 0.969 - 0.881 10 -0.466 -0.526 2.933 - 4.142 11 -0.479 -0.556 3.24 - 4.484 12 -0.453 -0.501 2.843 - 4.129 13 0.210 0.245 0.569 0.641 0.67 14 0.102 0.142 0.562 - 0.686 15 0.054 0.053 0.607 - 0.717 16 -0.261 -0.263 0.473 - 0.631 17 -0.485 -0.407 0.89 - 0.92 18 -0.479 -0.422 doesn't exist - 0.781 19 -0.410 -0.430 0.8 - 1.28 20 -0.420 -0.430 0.81 - 1.27 21 -0.301 -0.528 0.849329 - 0.717966 22 0.508 0.780 - - 0.888 23 0.176 0.302 0.595 - 0.672 24 0.280 0.281 0.883 0.915 0.988 25 0.276 0.509 - - 0.968 26 0.092 0.103 0.955 1.103 1.128 27 0.179 0.173 0.964 1.114 1.13 28 0.261 0.256 0.587 - 0.763

In Table 60, L5S1 sag is the sag value at the optical end of the first surface of the fifth lens, L5S2 sag is the sag value at the optical end of the second surface of the fifth lens, and Yc71P1 is the sag value of the seventh lens 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 2.84 2.53 2.87 3.35 4.18 6.11 - 2 2.44 2.16 2.25 2.93 4.08 5.53 - 3 2.44 2.16 2.25 2.93 4.08 5.53 - 4 2.86 2.52 2.42 2.72 3.38 5.82 - 5 1.5 1.34 1.32 1.72 2.31 3.03 - 6 1.24 1.15 1.03 1.48 1.9 2.46 - 7 1.34 1.23 1.03 1.5 1.98 2.66 - 8 1.25 1.14 0.94 1.5 1.86 2.44 - 9 1.49 1.39 1.16 1.7 2.21 2.95 - 10 2.31 2.16 2.54 2.94 4.06 4.84 5.12 11 2.46 2.26 2.53 2.86 3.63 4.47 4.79 12 2.47 2.21 2.53 2.79 3.78 4.51 - 13 2.58 2.4 2.49 2.97 4.16 4.89 5.51 14 2.59 2.5 2.53 2.9 3.8 4.9 - 15 2.77 2.61 2.79 3.12 4.03 4.89 - 16 2.12 2.1 2.04 2.12 2.81 4.64 - 17 2.32 2.36 2.56 2.93 3.7 4.35 - 18 2.41 2.3 2.66 3.03 3.76 - - 19 2.314 1.98 2.298 2.776 3.232 4.828 - 20 2.49 2.02 2.27 2.48 2.03 4.71 - 21 2.42 2.23 2.07 2.41 3.08 4.23 - 22 2.52 2.31 2.56 3.45 4.66 5.67 - 23 2.71 2.53 2.52 3.03 3.78 4.83 - 24 2.36 2.03 2.25 2.65 3.64 5.14 5.3 25 2.06 1.89 2.15 2.7 3.61 4.56 4.84 26 1.89 1.84 2.33 2.73 3.73 5.43 6.03 27 2.39 2.15 2.4 2.82 3.94 5.68 6.02 28 3.22 3.11 2.92 3.25 4.6 5.6 6.15

In Table 61, 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 9.275 5.4262 7.6682 9.6317 13.3855 16.9502 47.3187 2 10.25668 6.2334 7.9096 10.6038 13.1472 15.6863 47.1347 3 5.1971 5.216 5.7114 7.6743 11.4157 17.3987 26.6851 4 7.0224 7.0394 5.8013 7.8824 11.1935 36.4427 34.1183 5 8.0184 9.5628 9.6052 8.4128 12.0326 16.7196 28.0267 6 6.3442 6.9494 7.7597 6.2076 6.8959 10.3364 16.5597 7 5.7249 8.0179 8.3774 7.9589 10.3434 11.1031 27.1511 8 5.0799 5.7347 5.8704 6.465 6.7471 7.523 21.0455 9 6.8734 9.0897 9.3053 8.2626 10.8967 13.6572 31.8443 10 5.2342 5.0595 5.1455 4.1402 5.9856 8.1378 19.6812 11 4.9213 4.3965 4.4008 5.9124 9.5127 7.6205 23.7487 12 5.2239 4.9915 5.6183 5.5026 5.5766 7.2491 20.0822 13 5.639 4.858 6.6748 7.1627 11.0369 11.9357 27.1217 14 5.1778 5.1427 8.2986 6.3777 12.6369 14.9811 20.731 15 5.9227 6.9971 9.1275 7.025 12.2307 15.4792 23.2093 16 3.8115 4.6714 4.0552 5.0631 11.2844 25.7618 16.5646 17 4.2347 5.5368 5.5931 7.5471 9.4202 8.9992 27.3258 18 4.6529 4.6572 6.2312 6.7131 10.2673 11.7401 33.5372 19 5.7312 3.6543 4.1957 9.084 7.949 27.8626 30.6587 20 5.4092 4.6711 5.1562 7.663 8.7343 28.0075 34.4019 21 3.7681 3.4595 4.0278 5.0067 6.9793 11.3507 18.8879 22 6.1739 5.7042 6.968 11.8343 12.9092 21.1543 39.7461 23 4.9598 8.122 7.2222 8.2929 8.6024 18.837 19.7464 24 5.4854 3.9796 4.1274 4.6927 9.8848 20.3357 35.3318 25 3.81 3.9751 3.9272 6.1885 7.516 13.0347 31.8586 26 4.7517 4.3655 6.4562 5.0723 9.8674 36.8705 47.4701 27 5.6273 4.949 5.1423 5.0791 9.3624 31.5832 47.9081 28 7.5192 7.1322 12.3605 9.0385 17.2925 20.5539 33.5701

In Table 62, 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 sixth lens, and L7v is the volume of the seventh lens. The unit of volume is mm ³ .

Example L1w L2w L3w L4w L5w L6w L7w One 9.646 6.674 7.975 11.847 16.732 17.628 49.211 2 10.667 7.667 8.226 13.043 16.434 16.314 49.020 3 5.405 6.416 5.940 7.981 14.270 21.748 26.952 4 7.303 8.658 6.033 8.198 13.992 45.553 34.459 5 8.339 9.945 12.007 10.516 12.514 20.900 28.307 6 6.598 7.227 9.700 7.760 7.172 12.921 16.725 7 5.954 8.339 10.472 9.710 12.619 11.547 28.237 8 5.283 5.964 7.338 7.887 8.231 7.824 21.887 9 7.148 9.453 11.632 10.080 13.294 14.203 33.118 10 5.444 6.223 5.351 4.306 7.362 8.463 20.468 11 5.118 5.408 4.577 6.149 11.701 7.925 24.699 12 5.433 6.140 5.843 5.723 6.859 7.539 20.885 13 5.865 5.052 8.344 8.953 11.478 14.920 27.393 14 5.385 5.348 10.373 6.633 13.142 15.580 21.560 15 6.160 7.277 11.409 7.306 12.720 19.349 24.138 16 3.964 5.746 4.217 5.266 14.106 26.792 17.227 17 4.404 6.810 5.817 7.849 11.587 9.359 28.419 18 4.839 5.728 6.480 6.982 12.629 12.210 34.879 19 5.960 4.495 5.161 9.447 9.936 34.828 30.965 20 5.626 5.745 6.342 7.970 10.918 35.009 34.746 21 3.919 3.598 4.954 5.207 8.724 11.805 19.643 22 6.421 7.016 7.247 14.556 13.426 22.000 41.336 23 5.158 8.447 9.028 10.366 8.946 19.590 20.536 24 5.705 4.895 5.077 4.880 12.356 25.420 35.685 25 3.962 4.889 4.084 7.612 7.817 13.556 33.133 26 4.942 5.370 6.714 5.275 12.334 38.345 47.945 27 5.852 6.087 5.348 5.282 11.516 32.847 48.387 28 7.819968 7.417488 15.45063 11.29813 21.61563 21.37606 34.9129

In Table 63, L1w is the weight of the first lens, L2w is the weight of the second lens, L3w is the weight of the third lens, L4w is the weight of the fourth lens, L5w is the weight of the fifth lens, L6w is the weight of the sixth lens, and L7w is the weight of the seventh lens. The unit of weight is mg.

Example L1TR L2TR L3TR L4TR L5TR L6TR L7TR One 4.73 4.93 5.43 6.03 7 7.4 7.6 2 5.02 5.22 5.52 6.32 6.94 7.34 7.54 3 4.22 4.42 4.72 5.52 6.44 6.84 7.04 4 4.82 5.02 5.32 6.02 6.74 7.14 7.34 5 2.44 2.54 2.69 2.9 3.19 3.44 3.62 6 2.29 2.4 2.54 2.63 2.78 2.91 3.04 7 2.46 2.58 2.69 2.8 3.17 3.31 3.47 8 2.19 2.32 2.44 2.57 2.74 3 3.11 9 2.37 2.5 2.65 2.75 3.04 3.44 3.54 10 4.22 4.42 4.54 4.72 5.4 5.74 6.3 11 4.08 4.23 4.36 4.53 5.11 5.56 6.15 12 4.33 4.53 4.66 4.92 5.09 5.72 5.97 13 4.21 4.3 4.44 4.84 5.47 6.12 6.9 14 4.25 4.34 4.48 4.88 5.51 6.16 6.48 15 4.43 4.52 4.66 5.06 5.5 6.26 6.58 16 3.51 3.81 4.39 4.98 5.85 6.15 6.25 17 3.93 4.13 4.71 6.17 5.3 6.57 6.67 18 4.03 4.23 4.81 5.4 6.27 6.67 6.77 19 4.228 4.402 4.87 5.476 6.332 6.714 6.92 20 4.26 4.46 5.03 5.62 6.5 6.9 7.1 21 3.83 4.03 4.23 4.83 5.32 5.72 5.92 22 4.63 4.93 5.23 6.03 6.92 7.32 7.52 23 4.29 4.38 4.52 4.92 5.65 6.26 6.77 24 4.09 4.18 4.3 4.53 5.22 6.62 7.32 25 3.73 3.82 3.96 4.39 4.96 6 6.86 26 3.97 4.06 4.19 4.63 5.2 7.15 8.02 27 4.39 4.48 4.61 5.04 5.61 7.09 7.95 28 4.87 4.96 5.09 5.52 6.37 7.41 7.84

In Table 64, L1TR is the maximum outer diameter of the first lens, L2TR is the maximum outer diameter of the second lens, L3TR is the maximum outer diameter of the third lens, L4TR is the maximum outer diameter of the fourth lens, L5TR is the maximum outer diameter of the fifth lens the maximum outer diameter, L6TR is the maximum outer diameter of the sixth lens, and L7TR is the maximum outer diameter of the seventh lens. The maximum outer diameter means the outer diameter including the ribs of the lens.

Example L1rt L2rt L3rt L4rt L5rt L6rt L7rt One 0.61 0.37 0.33 0.32 0.37 0.465 0.895 2 0.585 0.395 0.34 0.41 0.305 0.343 0.91 3 0.435 0.425 0.39 0.41 0.345 0.375 0.53 4 0.435 0.495 0.22 0.29 0.325 0.81 0.595 5 0.6 0.58 0.56 0.47 0.34 0.4 0.47 6 0.54 0.5 0.52 0.42 0.21 0.39 0.4 7 0.39 0.44 0.47 0.36 0.42 0.38 0.47 8 0.54 0.37 0.41 0.33 0.37 0.27 0.42 9 0.6 0.51 0.55 0.35 0.46 0.47 0.52 10 0.435 0.43 0.36 0.215 0.32 0.33 0.405 11 0.42 0.42 0.36 0.31 0.45 0.36 0.7 12 0.41 0.41 0.37 0.37 0.29 0.33 0.52 13 0.55 0.38 0.58 0.41 0.5 0.32 0.53 14 0.49 0.39 0.68 0.36 0.63 0.49 0.48 15 0.49 0.47 0.71 0.47 0.56 0.5 0.55 16 0.482 0.395 0.316 0.328 0.422 0.885 0.409 17 0.431 0.556 0.361 0.429 0.38 0.38 0.667 18 0.431 0.457 0.361 0.364 0.38 0.334 0.729 19 0.457 0.314 0.315 0.345 0.276 0.741 0.774 20 0.431 0.408 0.319 0.369 0.252 0.674 0.798 21 0.39 0.33 0.3 0.26 0.425 0.55 0.534 22 0.43 0.41 0.35 0.48 0.305 0.57 0.71 23 0.48 0.56 0.58 0.47 0.34 0.62 0.44 24 0.51 0.25 0.32 0.32 0.51 0.53 0.72 25 0.4 0.42 0.37 0.5 0.32 0.46 0.72 26 0.47 0.41 0.45 0.41 0.47 0.93 0.7 27 0.44 0.39 0.4 0.4 0.38 0.74 0.72 28 0.56 0.41 0.56 0.54 0.52 0.44 0.54

In Table 65, 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 ribs of the fifth lens, L6rt is the maximum thickness of the ribs of the sixth lens, and L7rt is the maximum thickness of the ribs of the seventh lens. The maximum thickness of the rib means the thickness of the portion in contact with the spacer.

60 shows the maximum outer diameter (L7TR) of the seventh lens, the maximum thickness of the rib (L7rt), the edge thickness (L7edgeT) of the seventh lens, the lens thickness (Yc71P1) at the first inflection point of the object side of the seventh lens, 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 are shown.

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 it is understood that various changes or modifications can be made within the spirit and scope of the present invention. It is intended that such changes or modifications will be apparent to those skilled in the art, and therefore fall within the scope of the appended claims.

110: first lens
120: second lens
130: third lens
140: fourth lens
150: fifth lens
160: sixth lens
170: seventh lens
180: infrared cut filter
190: image sensor
ST: aperture

Claims (22)

arranged sequentially along the optical axis from the object side toward the upper side,
a first lens having positive refractive power, an object-side surface is convex, and an image-side surface is concave;
a second lens having a negative refractive power, an object-side surface is convex, and an image-side surface is concave;
a third lens having a negative refractive power;
a fourth lens having positive refractive power;
a fifth lens having positive refractive power;
a sixth lens having positive refractive power; and
Including; a seventh lens having a negative refractive power;
When a radius of curvature of the object-side surface of the first lens is R1 and a radius of curvature of the image-side surface of the second lens is R4, 0.01<R1/R4<1.3 is satisfied.
According to claim 1,
The third lens has a concave image side,
When a radius of curvature of the image side surface of the third lens is R6, 0.05<R1/R6<0.9 is satisfied.
3. The method of claim 2,
The sixth lens has a convex object-side surface,
When a radius of curvature of the object-side surface of the sixth lens is R11, 0.2<R1/R11<1.2 is satisfied.
4. The method of claim 3,
The seventh lens has a concave image side,
An imaging optical system satisfying 0.6<(R11+R14)/(2*R1)<3.0 when a radius of curvature of the image side surface of the seventh lens is R14.
According to claim 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 f is the total focal length of the optical system composed of the first lens to the seventh lens,
An imaging optical system satisfying 0.1 < (1/f1+1/f2+1/f3+1/f4+1/f5+1/f6+1/f7)*f < 0.8.
6. The method of claim 5,
When the optical axis distance from the object-side surface of the first lens to the imaging surface is TTL,
An imaging optical system satisfying 0.1 < (1/f1+1/f2+1/f3+1/f4+1/f5+1/f6+1/f7)*TTL < 1.0.
According to claim 1,
When the optical axis thickness of the first lens is TD1 and the optical axis distance from the object side surface of the sixth lens to the image side surface of the seventh lens is D67,
An imaging optical system satisfying 0.2 < TD1/D67 < 0.8.
8. The method of claim 7,
When SD56 is the distance from the image-side surface of the fifth lens to the object-side surface of the sixth lens and SD67 is the distance from the image-side surface of the sixth lens to the object-side surface of the seventh lens, SD56 < An imaging optical system that satisfies SD67.
9. The method of claim 8,
When the sum of the thicknesses on the optical axis of each of the first to seventh lenses is ∑TD, and the optical axis distance from the object-side surface of the first lens to the imaging surface is TTL,
An imaging optical system satisfying 0.4 < ∑TD/TTL < 0.7.
10. The method of claim 9,
When half of the diagonal length of the imaging plane is Img HT,
An imaging optical system satisfying 0.6 < TTL/(2*Img HT) < 0.9.
According to claim 1,
The third lens has a concave image-side surface, and the fourth lens has a convex object-side surface.
12. The method of claim 11,
The sixth lens has a convex object-side surface,
The seventh lens is an imaging optical system in which an object-side surface and an image-side surface are concave.
arranged sequentially along the optical axis from the object side toward the upper side,
a first lens having positive refractive power, an object-side surface is convex, and an image-side surface is concave;
a second lens having a negative refractive power, an object-side surface is convex, and an image-side surface is concave;
a third lens having positive refractive power, the object-side surface is concave, and the image-side surface is convex;
a fourth lens having a negative refractive power;
a fifth lens having positive refractive power;
a sixth lens having positive refractive power; and
Including; a seventh lens having a negative refractive power;
When a radius of curvature of the object-side surface of the first lens is R1 and a radius of curvature of the image-side surface of the second lens is R4, 0.01<R1/R4<1.3 is satisfied.
14. The method of claim 13,
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 f is the total focal length of the optical system composed of the first lens to the seventh lens,
An imaging optical system satisfying 0.1 < (1/f1+1/f2+1/f3+1/f4+1/f5+1/f6+1/f7)*f < 0.8.
15. The method of claim 14,
When the optical axis distance from the object-side surface of the first lens to the imaging surface is TTL,
An imaging optical system satisfying 0.1 < (1/f1+1/f2+1/f3+1/f4+1/f5+1/f6+1/f7)*TTL < 1.0.
14. The method of claim 13,
When the optical axis thickness of the first lens is TD1 and the optical axis distance from the object side surface of the sixth lens to the image side surface of the seventh lens is D67,
An imaging optical system satisfying 0.2 < TD1/D67 < 0.8.
17. The method of claim 16,
When the sum of the thicknesses on the optical axis of each of the first to seventh lenses is ∑TD, and the optical axis distance from the object-side surface of the first lens to the imaging surface is TTL,
An imaging optical system satisfying 0.4 < ∑TD/TTL < 0.7.
18. The method of claim 17,
Let SD12 be the distance on the optical axis from the image-side surface of the first lens to the object-side surface of the second lens, and SD34 be the distance from the image-side surface of the third lens to the object-side surface of the fourth lens. at the time,
An imaging optical system that satisfies SD12 < SD34.
19. The method of claim 18,
When the distance from the image-side surface of the fifth lens to the object-side surface of the sixth lens is SD56,
An imaging optical system that satisfies SD56 < SD34.
20. The method of claim 19,
When the distance from the image-side surface of the sixth lens to the object-side surface of the seventh lens is SD67,
An imaging optical system that satisfies SD56 < SD67.
18. The method of claim 17,
When half of the diagonal length of the imaging plane is Img HT,
An imaging optical system satisfying 0.6 < TTL/(2*Img HT) < 0.9.
14. The method of claim 13,
The fourth lens has a convex object-side surface and a concave image-side surface,
The fifth lens has a concave object-side surface and a convex image-side surface,
The seventh lens is an imaging optical system in which an image side surface is concave.

Images