The optical imaging system according to an embodiment of the present disclosure may satisfy any one or any combination of any two or more of the following Conditional Expressions 1 to 12.

TTL/(2×IMG HT)<0.660 (Conditional Expression 1)

Fno<1.70 (Conditional Expression 2)

D15/L1S1E<1.200 (Conditional Expression 3)

Nv50≥5 (Conditional Expression 4)

Nv24≥3 (Conditional Expression 5)

30<v1−v2<45 (Conditional Expression 6)

30<v1−v3<45 (Conditional Expression 7)

30<v1−v6<45 (Conditional Expression 8)

30<v1−v7<45 (Conditional Expression 9)

15<v1−v9<25 (Conditional Expression 10)

f345/f1>6 (Conditional Expression 11)

4<|f678|/f1<7 (Conditional Expression 12)

In the above conditional expressions, f1 is a focal length of the first lens, f345 is a composite focal length of the third lens, the fourth lens, and the fifth lens, and f678 is a composite focal length of the sixth lens, the seventh lens, and the eighth lens.

v1 is an Abbe number of the first lens, v2 is an Abbe number of the second lens, v3 is an Abbe number of the third lens, v6 is an Abbe number of the sixth lens, v7 is an Abbe number of the seventh lens, and v9 is an Abbe number of the ninth lens.

Nv50 is a number of lenses among the first to eleventh lenses having an Abbe number of less than 50, and Nv24 is a number of lenses among the first to eleventh lenses having an Abbe number of less than 24.

TTL is a distance on the optical axis from the object-side surface of the first lens to the imaging surface, and IMG HT is one half of a diagonal length of the imaging surface.

D15 is a distance on the optical axis from the object-side surface of the first lens to the image-side surface of the fifth lens, and L1S1E is an effective radius of the object-side surface of the first lens.

Fno is f-number of the optical imaging system.

An effective aperture radius of a lens surface is a radius of a portion of the lens surface through which light actually passes, and is not necessarily a radius of an outer edge of the lens surface. Stated another way, an effective aperture radius of a lens surface is a distance in a direction perpendicular to an optical axis of the lens surface between the optical axis and a marginal ray of light passing through the lens surface. The object-side surface of a lens and the image-side surface of the lens may have different effective aperture radiuses.

The first lens has a positive refractive power. Additionally, the first lens may have a meniscus shape convex toward the object side. Additionally, a first surface of the first lens may have a shape convex in the paraxial region, and a second surface of the first lens may have a shape concave in the paraxial region.

The second lens has a negative refractive power. Additionally, the second lens may have a meniscus shape convex toward the object side. Additionally, the first surface of the second lens may have a shape convex in the paraxial region, and the second surface of the second lens may have a shape concave in the paraxial region.

The third lens has a positive or negative refractive power. Additionally, the third lens may have a meniscus shape convex toward the object side. Additionally, a first surface of the third lens may have a shape convex in the paraxial region, and a second surface of the third lens may have a shape concave in the paraxial region.

The fourth lens has a positive or negative refractive power. Additionally, the fourth lens may have a meniscus shape convex toward the object side. Additionally, a first surface of the fourth lens may have a shape convex in the paraxial region, and a second surface of the fourth lens may have a shape concave in the paraxial region.

The fifth lens has a positive or negative refractive power. Additionally, the fifth lens may have a meniscus shape convex toward the object side. Additionally, a first surface of the fifth lens may have a shape convex in the paraxial region, and a second surface of the fifth lens may have a shape concave in the paraxial region.

The sixth lens has a positive or negative refractive power. Additionally, a sixth lens may have a meniscus shape convex toward the image side. Additionally, a first surface of the sixth lens may have a shape concave in the paraxial region, and a second surface of the sixth lens may have a shape convex in the paraxial region.

The seventh lens has a positive or negative refractive power. Additionally, the seventh lens may have a shape in which both surfaces thereof are concave. Additionally, a first surface and a second surface of the seventh lens may have a shape concave in the paraxial region.

Alternatively, the seventh lens may have a meniscus shape convex toward the image side. Additionally, the first surface of the seventh lens may have a shape concave in the paraxial region, and the second surface of the seventh lens may have a shape convex in the paraxial region.

The eighth lens has a positive or negative refractive power. Additionally, the eighth lens may have a shape in which both surfaces thereof are convex. Additionally, a first surface and a second surface of the eighth lens may have a shape convex in the paraxial region.

Alternatively, the eighth lens may have a meniscus shape convex toward the image side. Additionally, the first surface of the eighth lens may have a shape concave in the paraxial region, and the second surface of the eighth lens may have a shape convex in the paraxial region.

The ninth lens has a positive or negative refractive power. Additionally, the ninth lens may have a meniscus shape convex toward the object side. Additionally, a first surface of the ninth lens may have a shape convex in the paraxial region, and a second surface of the ninth lens may have a shape concave in the paraxial region.

Additionally, the ninth lens may have at least one inflection point formed on either one or both of the first surface and the second surface. For example, the first surface of the ninth lens may have a shape convex in the paraxial region, and may have a shape concave in a portion other than the paraxial region. The second surface of the ninth lens may have a shape concave in the paraxial region, and may have a shape convex in a portion other than the paraxial region.

The tenth lens has a positive refractive power. Additionally, the tenth lens may have a meniscus shape convex toward the object side. Additionally, a first surface of the tenth lens may have a shape convex in the paraxial region, and a second surface of the tenth lens may have a shape concave in the paraxial region.

Additionally, the tenth lens may have at least one inflection point formed on either one or both of the first surface and the second surface. For example, the first surface of the tenth lens may have a shape convex in the paraxial region, and may have a shape concave in a portion other than the paraxial region. The second surface of the tenth lens may have a shape concave in the paraxial region, and may have a shape convex in a portion other than the paraxial region.

The eleventh lens has a negative refractive power. Additionally, the eleventh lens may have a shape in which both surfaces thereof are concave. Additionally, a first surface and a second surface of the eleventh lens may have a shape concave in the paraxial region.

Alternatively, the eleventh lens may have a meniscus shape convex toward the object side. Additionally, the first surface of the eleventh lens may have a shape convex in the paraxial region, and the second surface of the eleventh lens may have a shape concave in the paraxial region.

Additionally, the eleventh lens may have at least one inflection point formed on either one or both of the first surface and the second surface. For example, the first surface of the first lens may have a shape concave in the paraxial region, and may have a shape convex in a portion other than the paraxial region. Alternatively, the first surface of the first lens may have a shape convex in the paraxial region, and may have a shape concave in a portion other than the paraxial region. The second surface of the eleventh lens may have a shape concave in the paraxial region, and may have a shape convex in a portion other than the paraxial region.

Each of at least two lenses sequentially arranged along the optical axis may have an Abbe number of less than 38. For example, each of at least two lenses sequentially arranged along the optical axis among the first to fourth lenses may have an Abbe number of less than 38. Also, each of at least two lenses sequentially arranged along the optical axis among the fifth to ninth lenses may have an Abbe number of less than 38.

Additionally, among the second lens to the seventh lens, at least two lenses sequentially arranged along the optical axis may have an Abbe number of less than 24.

An average value of a refractive index of the second lens and a refractive index of the third lens may be greater than 1.61.

At least one of the third lens to the fifth lens may have a refractive index of greater than 1.56 and an Abbe number of less than 38.

At least one of the sixth lens to the eighth lens may have a refractive index of greater than 1.67 and an Abbe number of less than 20.

An absolute value of the focal length of the second lens may be greater than an absolute value of the focal length of the first lens. For example, an absolute value of the focal length of the second lens may be greater than twice and less than four times an absolute value of the focal length of the first lens.

A composite focal length of the third lens, the fourth lens, and the fifth lens may have a positive value. Additionally, a composite focal length of the third lens, the fourth lens, and the fifth lens may be greater than an absolute value of the focal length of the second lens. For example, a composite focal length of the third lens, the fourth lens, and the fifth lens may be greater than twice and less than six times an absolute value of the focal length of the second lens.

A composite focal length of the sixth lens, the seventh lens, and the eighth lens may have a negative value. Additionally, an absolute value of the composite focal length of the sixth lens, the seventh lens, and the eighth lens may be less than a focal length of each of the third lens, the fourth lens, and the fifth lens. For example, an absolute value of the composite focal length of the sixth lens, the seventh lens, and the eighth lens may be greater than 0.2 times and less than 1 times the focal length of each of the third lens, the fourth lens, and the fifth lens.

The optical imaging system according to an embodiment of the present disclosure may have a field of view greater than 80°. In an embodiment, the field of view of the optical imaging system may be less than 88°.

FIG. 1 is a structural view of an optical imaging system according to a first embodiment of the present disclosure, and FIG. 2 is a view illustrating aberration characteristics of the optical imaging system illustrated in FIG. 1.

Referring to FIGS. 1 and 2, an optical imaging system 100 according to the first embodiment of the present disclosure may include a first lens 101, a second lens 102, a third lens 103, a fourth lens 104, a fifth lens 105, a sixth lens 106, a seventh lens 107, an eighth lens 108, a ninth lens 109, a tenth lens 110, and, an eleventh lens 111, and may further include a filter 112 and an image sensor IS.

The optical imaging system 100 according to the first embodiment of the present disclosure may focus an image on an imaging surface 113. The imaging surface 113 may be a surface on which an image is focused by the optical imaging system 100. For example, the imaging surface 113 may be a surface of the image sensor IS on which light is received.

An aperture (not shown) may be disposed between the second lens 102 and the third lens 103.

The lens characteristics of each lens (a radius of curvature the first surface, a radius of curvature of the second surface, a thickness of the lens or a distance between the lens and the next lens, a refractive index, an Abbe number, an effective radius, and a focal length) are illustrated in Table 1 below.

TABLE 1

Surface

Radius of
Thickness/
Refractive
Abbe
Effective
Focal

Number
Element
Curvature
Distance
Index
Number
Radius
Length

S1
First
3.213
1.222
1.546
55.99
2.371
7.2616

S2
Lens
14.690
0.050

2.150

S3
Second
8.108
0.180
1.667
20.38
2.065
−24.305

S4
Lens
5.356
0.322

1.959

S5 (Stop)
Third
12.342
0.180
1.677
19.24
1.925
−53.5237

S6
Lens
9.152
0.062

1.933

S7
Fourth
12.978
0.242
1.546
55.99
1.940
35.6195

S8
Lens
38.779
0.051

1.950

S9
Fifth
24.782
0.332
1.546
55.99
1.980
−1829.52

S10
Lens
24.067
0.629

1.993

S11
Sixth
−18.461
0.220
1.677
19.24
1.998
56.0539

S12
Lens
−12.479
0.050

2.257

S13
Seventh
−12.358
0.228
1.667
20.38
2.354
−14.5477

S14
Lens
45.353
0.050

2.494

S15
Eighth
84.684
0.614
1.570
37.40
2.675
39.9309

S16
Lens
−31.037
0.502

2.880

S17
Ninth
9.989
0.546
1.570
37.40
3.505
−39.0747

S18
Lens
6.759
0.275

3.769

S19
Tenth
2.831
0.576
1.546
55.99
4.217
6.4349

S20
Lens
13.542
1.431

4.434

S21
Eleventh
−223.612
0.360
1.537
55.74
5.560
−5.4483

S22
Lens
2.964
0.208

6.006

S23
Filter
Infinity
0.245

6.923

S24

Infinity
0.755

7.000

S25
Imaging
Infinity

7.151

Surface

In an example, a total focal length f of the optical imaging system 100 according to the first embodiment of the present disclosure is 7.594 mm, Fno is 1.69, IMG HT is 7.15 mm, and FOV is 84.839°.

In the first embodiment of the present disclosure, the first lens 101 has a positive refractive power, a first surface of the first lens 101 has a shape convex in the paraxial region, and a second surface of the first lens 101 has a shape concave in the paraxial region.

The second lens 102 has a negative refractive power, a first surface of the second lens 102 has a shape convex in the paraxial region, and a second surface of the second lens 102 has a shape concave in the paraxial region.

The third lens 103 has a negative refractive power, a first surface of the third lens 103 has a shape convex in the paraxial region, and a second surface of the third lens 103 has a shape concave in the paraxial region.

The fourth lens 104 has a positive refractive power, a first surface of the fourth lens 104 has a shape convex in the paraxial region, and a second surface of the fourth lens 104 has a shape concave in the paraxial region.

The fifth lens 105 has a negative refractive power, a first surface of the fifth lens 105 has a shape convex in the paraxial region, and a second surface of the fifth lens 105 has a shape concave in the paraxial region.

The sixth lens 106 has a positive refractive power, a first surface of the sixth lens 106 has a shape concave in the paraxial region, and a second surface of the sixth lens 106 has a shape convex in the paraxial region.

The seventh lens 107 has a negative refractive power, and a first surface and a second surface of the seventh lens 107 have a shape concave in the paraxial region.

The eighth lens 108 has a positive refractive power, and a first surface and a second surface of the eighth lens 108 have a shape convex in the paraxial region.

The ninth lens 109 has a negative refractive power, a first surface of the ninth lens 109 has a shape convex in the paraxial region, and a second surface of the ninth lens 109 has a shape concave in the paraxial region.

The tenth lens 110 has a positive refractive power, a first surface of the tenth lens 110 has a shape convex in the paraxial region, and a second surface of the tenth lens 110 has a shape concave in the paraxial region.

The eleventh lens 111 has a negative refractive power, and a first surface and a second surface of the eleventh lens 111 have a shape concave in the paraxial region.

Any one or any combination of any two or more of the ninth lens 109 to the eleventh lens 111 has at least one inflection point formed on either one or both of the first and second surfaces.

Each surface of each of the first lens 101 to the eleventh lens 111 has aspherical coefficients as illustrated in Table 2 below. For example, both the object-side surface and the image-side surface of each of the first lens 101 to the eleventh lens 111 are aspherical surfaces.

TABLE 2

S1
S2
S3
S4
S5
S6
S7
S8

Conic
−3.376E−01
1.345E+01
−1.764E+01
−8.239E+00
−1.425E+01
−8.016E+01
−9.591E+01
−9.900E+01

Constant (K)

Fourth
1.628E−03
4.698E−03
9.218E−04
−2.966E−03
−1.461E−02
5.036E−04
3.253E−03
−3.679E−03

Coefficient (A)

Sixth
1.948E−03
−6.982E−03
−7.619E−03
−2.915E−03
4.404E−03
1.376E−03
1.379E−03
−5.435E−03

Coefficient (B)

Eighth
−4.660E−03
4.413E−03
8.473E−03
8.907E−03
9.986E−04
−6.147E−03
−2.175E−02
−2.885E−03

Coefficient (C)

Tenth
7.515E−03
1.184E−03
−6.402E−03
−1.819E−02
−8.200E−03
1.842E−02
6.392E−02
1.508E−02

Coefficient (D)

Twelfth
−7.927E−03
−5.980E−03
4.250E−03
2.761E−02
1.310E−02
−4.737E−02
−1.312E−01
−2.337E−02

Coefficient (E)

Fourteenth
5.770E−03
7.063E−03
−2.344E−03
−2.898E−02
−1.029E−02
8.222E−02
1.890E−01
2.638E−02

Coefficient (F)

Sixteenth
−2.984E−03
−5.036E−03
9.598E−04
2.130E−02
3.152E−03
−9.389E−02
−1.902E−01
−2.355E−02

Coefficient (G)

Eighteenth
1.113E−03
2.443E−03
−2.451E−04
−1.112E−02
1.461E−03
7.210E−02
1.342E−01
1.600E−02

Coefficient (H)

Twentieth
−3.004E−04
8.332E−04
1.600E−05
4.140E−03
−1.999E−03
−3.789E−02
−6.646E−02
−7.863E−03

Coefficient (J)

Twenty-Second
5.811E−05
2.001E−04
1.359E−05
−1.089E−03
9.977E−04
1.367E−02
2.296E−02
2.698E−03

Coefficient (L)

Twenty-Fourth
−7.852E−06
−3.315E−05
−5.606E−06
1.974E−04
−2.860E−04
−3.332E−03
−5.406E−03
−6.249E−04

Coefficient (M)

Twenty-Sixth
7.034E−07
3.606E−06
1.047E−06
−2.340E−05
4.932E−05
5.242E−04
8.268E−04
9.283E−05

Coefficient (N)

Twenty-Eighth
−3.753E−08
−2.318E−07
−1.015E−07
1.627E−06
−4.775E−06
−4.804E−05
−7.397E−05
−7.986E−06

Coefficient (O)

Thirtieth
9.025E−10
6.672E−09
4.127E−09
−5.012E−08
2.002E−07
1.948E−06
2.936E−06
3.031E−07

Coefficient (P)

S9
S10
S11
S12
S13
S14
S15
S16

Conic
−9.669E+01
6.459E+01
7.417E+01
2.633E+01
1.682E+01
9.900E+01
9.900E+01
9.317E+01

Constant (K)

Fourth
−1.891E−03
−6.719E−04
1.229E−03
7.150E−02
7.617E−02
2.823E−02
1.974E−02
−3.639E−03

Coefficient (A)

Sixth
−4.122E−03
−8.413E−03
−4.243E−02
−2.167E−01
−2.441E−01
−1.441E−01
−1.061E−01
−1.525E−02

Coefficient (B)

Eighth
2.781E−03
2.457E−02
7.014E−02
3.829E−01
4.609E−01
2.713E−01
1.742E−01
9.625E−03

Coefficient (C)

Tenth
−7.721E−03
−5.290E−02
−9.960E−02
−4.821E−01
−5.865E−01
−3.162E−01
−1.783E−01
−2.891E−03

Coefficient (D)

Twelfth
2.526E−02
7.796E−02
1.115E−01
4.307E−01
5.142E−01
2.495E−01
1.257E−01
−4.049E−04

Coefficient (E)

Fourteenth
−4.229E−02
−8.099E−02
−9.741E−02
−2.773E−01
−3.192E−01
−1.396E−01
−6.335E−02
9.390E−04

Coefficient (F)

Sixteenth
4.275E−02
6.024E−02
6.571E−02
1.308E−01
1.434E−01
5.673E−02
2.324E−02
−5.340E−04

Coefficient (G)

Eighteenth
−2.860E−02
−3.239E−02
−3.378E−02
−4.568E−02
−4.720E−02
−1.697E−02
−6.260E−03
1.825E−04

Coefficient (H)

Twentieth
1.317E−02
1.261E−02
1.304E−02
1.180E−02
1.139E−02
3.738E−03
1.239E−03
−4.178E−05

Coefficient (J)

Twenty-Second
−4.212E−03
−3.513E−03
−3.701E−03
−2.224E−03
−1.995E−03
−6.003E−04
−1.786E−04
6.533E−06

Coefficient (L)

Twenty-Fourth
9.214E−04
6.831E−04
7.478E−04
2.969E−04
2.465E−04
6.839E−05
1.825E−05
−6.876E−07

Coefficient (M)

Twenty-Sixth
−1.316E−04
−8.803E−05
−1.016E−04
−2.655E−05
−2.036E−05
−5.242E−06
−1.255E−06
4.647E−08

Coefficient (N)

Twenty-Eighth
1.106E−05
6.754E−06
8.323E−06
1.423E−06
1.009E−06
2.425E−07
5.208E−08
−1.816E09

Coefficient (O)

Thirtieth
−4.137E−07
−2.335E−07
−3.101E−07
−3.447E−08
−2.268E−08
−5.119E−09
−9.859E−10
3.110E−11

Coefficient (P)

S17
S18
S19
S20
S21
S22

Conic
−1.278E+01
−8.768E+01
−1.139E+01
−1.756E+01
9.900E+01
−1.174E+01

Constant (K)

Fourth
−4.325E−03
−2.273E−02
2.391E−02
2.299E−02
−8.182E−02
−3.887E−02

Coefficient (A)

Sixth
1.078E−04
−1.675E−03
−2.026E−02
−7.536E−03
2.908E−02
1.294E−02

Coefficient (B)

Eighth
−1.591E−03
6.321E−03
1.058E−02
1.008E−03
−7.960E−03
−3.170E−03

Coefficient (C)

Tenth
1.530E−03
−4.432E−03
−4.527E−03
−1.932E−04
1.615E−03
5.551E−04

Coefficient (D)

Twelfth
−8.430E−04
1.959E−03
1.431E−03
8.124E−05
−2.393E−04
−7.038E−05

Coefficient (E)

Fourteenth
3.017E−04
−6.171E−04
−3.257E−04
−2.457E−05
2.619E−05
6.535E−06

Coefficient (F)

Sixteenth
−7.428E−05
1.415E−04
5.320E−05
4.562E−06
−2.126E−06
−4.478E−07

Coefficient (G)

Eighteenth
1.280E−05
−2.369E−05
−6.241E−06
−5.475E−07
1.278E−07
2.272E−08

Coefficient (H)

Twentieth
−1.540E−06
2.874E−06
5.245E−07
4.377E−08
−5.641E−09
−8.512E−10

Coefficient (J)

Twenty-Second
1.269E−07
−2.486E−07
−3.118E−08
−2.333E−09
1.800E−10
2.323E−11

Coefficient (L)

Twenty-Fourth
−6.858E−09
1.488E−08
1.278E−09
8.051E−11
−4.032E−12
−4.491E−13

Coefficient (M)

Twenty-Sixth
2.232E−10
−5.837E−10
−3.425E−11
−1.675E−12
6.009E−14
5.826E−15

Coefficient (N)

Twenty-Eighth
−3.604E−12
1.348E−11
5.399E−13
1.786E−14
−5.346E−16
−4.545E−17

Coefficient (O)

Thirtieth
1.483E−14
−1.387E−13
−3.790E−15
−6.028E−17
2.148E−18
1.611E−19

Coefficient (P)

Additionally, the optical imaging system 100 described above may have the aberration characteristics illustrated in FIG. 2.

FIG. 3 is a structural view of an optical imaging system according to a second embodiment of the present disclosure, and FIG. 4 is a view illustrating aberration characteristics of the optical imaging system illustrated in FIG. 3.

Referring to FIGS. 3 and 4, an optical imaging system 200 according to the second embodiment of the present disclosure may include a first lens 201, a second lens 202, a third lens 203, a fourth lens 204, a fifth lens 205, a sixth lens 206, a seventh lens 207, an eighth lens 208, a ninth lens 209, a tenth lens 210, and an eleventh lens 211, and may further include a filter 212 and an image sensor IS.

The optical imaging system 200 according to the second embodiment of the present disclosure may focus an image on an imaging surface 213. The imaging surface 213 may be a surface on which an image is focused by the optical imaging system 200. For example, the imaging surface 213 may be a surface of the image sensor IS on which light is received.

An aperture (not shown) may be disposed between the second lens 202 and the third lens 203.

The lens characteristics of each lens (a radius of curvature of the first surface, a radius of curvature of the second surface, a thickness of the lens or a distance between the lens and the next lens, a refractive index, an Abbe number, an effective radius, and a focal length) are illustrated in Table 3 below.

TABLE 3

Surface

Radius of
Thickness/
Refractive
Abbe
Effective
Focal

Number
Element
Curvature
Distance
Index
Number
Radius
Length

S1
First
3.213
1.219
1.546
55.99
2.358
7.2516

S2
Lens
14.789
0.058

2.150

S3
Second
8.186
0.180
1.677
19.24
2.071
−17.5089

S4
Lens
4.799
0.291

1.941

S5 (Stop)
Third
8.594
0.235
1.570
37.40
1.918
50

S6
Lens
12.184
0.050

1.939

S7
Fourth
21.011
0.232
1.546
55.99
1.952
65.0457

S8
Lens
51.276
0.050

1.960

S9
Fifth
31.946
0.296
1.570
37.40
2.000
−74.7848

S10
Lens
18.198
0.674

2.021

S11
Sixth
−20.477
0.220
1.677
19.24
2.020
45.273

S12
Lens
−12.328
0.050

2.249

S13
Seventh
−12.598
0.247
1.677
19.24
2.352
−16.0349

S14
Lens
79.072
0.061

2.514

S15
Eighth
−465.171
0.652
1.537
55.74
2.727
58.829

S16
Lens
−29.576
0.451

2.956

S17
Ninth
9.175
0.548
1.570
37.40
3.569
−59.3681

S18
Lens
7.061
0.286

3.864

S19
Tenth
2.882
0.542
1.546
55.99
4.330
6.7840

S20
Lens
12.131
1.417

4.452

S21
Eleventh
−523.423
0.360
1.537
55.74
5.651
−5.4607

S22
Lens
2.947
0.211

6.096

S23
Filter
Infinity
0.245

6.944

S24

Infinity
0.755

7.018

S25
Imaging
Infinity

7.150

Surface

In an example, a focal length f of the optical imaging system 200 according to the second embodiment of the present disclosure is 7.5771 mm, Fno is 1.69, IMG HT is 7.15 mm, and FOV is 84.95°.

In the second embodiment of the present disclosure, the first lens 201 has a positive refractive power, a first surface of the first lens 201 has a shape convex in the paraxial region, and a second surface of the first lens 201 has a shape concave in the paraxial region.

The second lens 202 has a negative refractive power, a first surface of the second lens 202 has a shape convex in the paraxial region, and a second surface of the second lens 202 has a shape concave in the paraxial region.

The third lens 203 has a positive refractive power, the first surface of the third lens 203 has a shape convex in the paraxial region, and the second surface of the third lens 203 has a shape concave in the paraxial region.

The fourth lens 204 has a positive refractive power, a first surface of the fourth lens 204 has a shape convex in the paraxial region, and a second surface of the fourth lens 204 has a shape concave in the paraxial region.

The fifth lens 205 has a negative refractive power, a first surface of the fifth lens 205 has a shape convex in the paraxial region, and a second surface of the fifth lens 205 has a shape concave in the paraxial region.

The sixth lens 206 has a positive refractive power, a first surface of the sixth lens 206 has a shape concave in the paraxial region, and a second surface of the sixth lens 206 has a shape convex in the paraxial region.

The seventh lens 207 has a negative refractive power, and a first surface and a second surface of the seventh lens 207 have a shape concave in the paraxial region.

The eighth lens 208 has a positive refractive power, a first surface of the eighth lens 208 has a shape concave in the paraxial region, and a second surface of the eighth lens 208 has a shape convex in the paraxial region.

The ninth lens 209 has a negative refractive power, a first surface of the ninth lens 209 has a shape convex in the paraxial region, and a second surface of the ninth lens 209 has a shape concave in the paraxial region.

The tenth lens 210 has a positive refractive power, a first surface of the tenth lens 210 has a shape convex in the paraxial region, and a second surface of the tenth lens 210 has a shape concave in the paraxial region.

The eleventh lens 211 has a negative refractive power, and a first surface and a second surface of the eleventh lens 211 have a shape concave in the paraxial region.

Additionally, any one or any combination of any two or more of the ninth lens 209 to the eleventh lens 211 has at least one inflection point formed on either one or both of the first and second surfaces.

Each surface of each of the first lens 201 to the eleventh lens 211 has aspherical coefficients as illustrated in Table 4 below. For example, both the object-side surface and the image-side surface of each of the first lens 201 to the eleventh lens 211 are aspherical surfaces.

TABLE 4

S1
S2
S3
S4
S5
S6
S7
S8

Conic
−3.410E−01
9.653E+00
−2.993E+01
−8.772E+00
−1.265E+01
−9.883E+01
−9.900E+01
−1.221E+01

Constant (K)

Fourth
1.530E−03
6.799E−03
1.134E−03
−4.232E−03
−1.026E−02
3.706E−03
8.473E−03
−3.640E−03

Coefficient (A)

Sixth
2.605E−03
−1.189E−02
−1.416E−02
−6.854E−03
−1.970E−03
−1.483E−02
−2.153E−02
−2.276E−02

Coefficient (B)

Eighth
−5.791E−03
1.477E−02
2.582E−02
2.293E−02
8.253E−03
2.621E−02
3.164E−02
5.039E−02

Coefficient (C)

Tenth
8.661E−03
−1.409E−02
−3.312E−02
−4.175E−02
−1.225E−02
−1.988E−02
−2.324E−02
−8.078E−02

Coefficient (D)

Twelfth
−8.596E−03
9.201E−03
3.196E−02
5.470E−02
1.376E−02
−9.899E−03
−1.313E−02
1.004E−01

Coefficient (E)

Fourteenth
5.938E−03
−3.674E−03
−2.334E−02
−5.226E−02
−1.198E−02
4.560E−02
5.718E−02
−9.360E−02

Coefficient (F)

Sixteenth
−2.931E−03
5.394E−04
1.299E−02
3.656E−02
7.612E−03
−6.138E−02
−7.621E−02
6.445E−02

Coefficient (G)

Eighteenth
1.047E−03
2.935E−04
−5.495E−03
−1.869E−02
−3.380E−03
4.956E−02
6.104E−02
−3.253E−02

Coefficient (H)

Twentieth
−2.715E−04
−2.193E−04
1.746E−03
6.936E−03
1.006E−03
−2.656E−02
−3.246E−02
1.197E−02

Coefficient (J)

Twenty-Second
5.054E−05
7.209E−05
−4.079E−04
−1.838E−03
−1.858E−04
9.668E−03
1.172E−02
−3.186E−03

Coefficient (L)

Twenty-Fourth
−6.577E−06
−1.424E−05
6.773E−05
3.378E−04
1.665E−05
−2.364E−03
−2.840E−03
6.013E−04

Coefficient (M)

Twenty-Sixth
5.676E−07
1.734E−06
−7.541E−06
−4.073E−05
3.979E−07
3.717E−04
4.423E−04
7.683E−05

Coefficient (N)

Twenty-Eighth
−2.915E−08
−1.205E−07
5.035E−07
2.881E−06
−2.202E−07
−3.390E−05
−3.997E−05
5.986E−06

Coefficient (O)

Thirtieth
6.733E−10
3.672E−09
−1.521E−08
−9.001E−08
1.378E−08
1.362E−06
1.592E−06
−2.147E−07

Coefficient (P)

S9
S10
S11
S12
S13
S14
S15
S16

Conic
−6.041E+01
5.699E+01
7.639E+01
2.611E+01
1.875E+01
9.900E+01
−9.900E+01
9.128E+01

Constant (K)

Fourth
−7.379E−03
−2.831E−03
−2.775E−03
8.338E−02
9.972E−02
2.846E−02
6.758E−03
−9.542E−03

Coefficient (A)

Sixth
−1.089E−02
−7.910E−03
−3.980E−02
−2.584E−01
−2.902E−01
−1.171E−01
−6.228E−02
−6.054E−03

Coefficient (B)

Eighth
3.336E−02
2.809E−02
6.378E−02
4.264E−01
4.740E−01
1.914E−01
1.000E−01
1.420E−03

Coefficient (C)

Tenth
−5.828E−02
−5.911E−02
−7.667E−02
−4.962E−01
−5.323E−01
−1.997E−01
−9.703E−02
2.240E−03

Coefficient (D)

Twelfth
7.921E−02
8.346E−02
6.624E−02
4.233E−01
4.290E−01
1.422E−01
6.314E−02
−2.754E−03

Coefficient (E)

Fourteenth
−8.195E−02
−8.301E−02
−4.165E−02
−2.701E−01
−2.541E−01
−7.203E−02
−2.900E−02
1.706E−03

Coefficient (F)

Sixteenth
6.280E−02
5.910E−02
1.872E−02
1.300E−01
1.122E−01
2.662E−02
9.703E−03
−6.946E−04

Coefficient (G)

Eighteenth
−3.522E−02
−3.039E−02
−5.799E−03
−4.708E−02
−3.711E−02
−7.259E−03
−2.406E−03
1.974E−04

Coefficient (H)

Twentieth
1.433E−02
1.129E−02
1.153E−03
1.272E−02
9.136E−03
1.459E−03
4.445E−04
−3.969E−05

Coefficient (J)

Twenty-Second
−4.176E−03
−3.000E−03
−1.211E−04
−2.518E−03
−1.648E−03
−2.131E−04
−6.066E−05
5.610E−06

Coefficient (L)

Twenty-Fourth
8.481E−04
5.554E−04
4.229E−07
3.533E−04
2.110E−04
2.197E−05
5.951E−06
−5.434E−07

Coefficient (M)

Twenty-Sixth
−1.140E−04
−6.804E−05
1.252E−06
−3.318E−05
−1.814E−05
−1.512E−06
−3.973E−07
3.423E−08

Coefficient (N)

Twenty-Eighth
9.101E−06
4.959E−06
−8.353E−08
1.868E−06
9.381E−07
6.225E−08
1.614E−08
−1.259E−09

Coefficient (O)

Thirtieth
−3.262E−07
−1.630E−07
−1.145E−09
−4.757E−08
−2.203E−08
−1.157E−09
−3.004E−10
2.049E−11

Coefficient (P)

S17
S18
S19
S20
S21
S22

Conic
−1.705E+01
−8.491E+01
−1.131E+01
−2.216E+01
5.411E+01
−1.204E+01

Constant (K)

Fourth
−5.992E−03
−2.475E−02
2.427E−02
2.405E−02
−8.221E−02
−3.744E−02

Coefficient (A)

Sixth
2.347E−03
1.917E−03
−2.098E−02
−9.016E−03
2.920E−02
1.210E−02

Coefficient (B)

Eighth
−3.101E−03
3.119E−03
1.113E−02
1.925E−03
−7.928E−03
−2.836E−03

Coefficient (C)

Tenth
2.272E−03
−2.371E−03
−4.827E−03
−5.833E−04
1.587E−03
4.720E−04

Coefficient (D)

Twelfth
−1.131E−03
9.947E−04
1.548E−03
2.024E−04
−2.315E−04
−5.670E−05

Coefficient (E)

Fourteenth
3.906E−04
−2.934E−04
−3.576E−04
−5.205E−05
2.491E−05
4.973E−06

Coefficient (F)

Sixteenth
−9.543E−05
6.356E−05
5.934E−05
9.085E−06
−1.989E−06
−3.210E−07

Coefficient (G)

Eighteenth
1.662E−05
−1.017E−05
−7.080E−06
−1.085E−06
1.176E−07
1.532E−08

Coefficient (H)

Twentieth
−2.060E−06
1.188E−06
6.057E−07
8.960E−08
−5.105E−09
−5.392E−10

Coefficient (J)

Twenty-Second
1.793E−07
−9.939E−08
−3.672E−08
−5.098E−09
1.601E−10
1.385E−11

Coefficient (L)

Twenty-Fourth
−1.065E−08
5.752E−09
1.537E−09
1.955E−10
−3.522E−12
−2.527E−13

Coefficient (M)

Twenty-Sixth
4.087E−10
−2.177E−10
−4.215E−11
−4.808E−12
5.150E−14
3.109E−15

Coefficient (N)

Twenty-Eighth
−9.069E−12
4.835E−12
6.816E−13
6.809E−14
−4.493E−16
−2.315E−17

Coefficient (O)

Thirtieth
8.771E−14
−4.767E−14
−4.923E−15
−4.197E−16
1.769E−18
7.880E−20

Coefficient (P)

Additionally, the optical imaging system 200 described above may have the aberration characteristics illustrated in FIG. 4 below.

FIG. 5 is a structural view of an optical imaging system according to a third embodiment of the present disclosure, and FIG. 6 is a view illustrating aberration characteristics of the optical imaging system illustrated in FIG. 5.

Referring to FIGS. 5 and 6, an optical imaging system 300 according to the third embodiment of the present disclosure may include a first lens 301, a second lens 302, a third lens 303, a fourth lens 304, a fifth lens 305, a sixth lens 306, a seventh lens 307, an eighth lens 308, a ninth lens 309, a tenth lens 310, and an eleventh lens 311, and may further include a filter 312 and an image sensor IS.

The optical imaging system 300 according to the third embodiment of the present disclosure may focus an image on an imaging surface 313. The imaging surface 313 may be a surface on which an image is focused by the optical imaging system 300. For example, the imaging surface 313 may be a surface of the image sensor IS on which light is received.

An aperture (not shown) may be disposed between the second lens 302 and the third lens 303.

The lens characteristics of each lens (a radius of curvature of the first surface, a radius of curvature of the second surface, a thickness of the lens or a distance between the lens and the next lens, a refractive index, an Abbe number, an effective radius, and a focal length) are illustrated in Table 5 below.

TABLE 5

Surface

Radius of
Thickness/
Refractive
Abbe
Effective
Focal

Number
Element
Curvature
Distance
Index
Number
Radius
Length

S1
First
3.200
1.243
1.546
55.99
2.380
7.1965

S2
Lens
14.891
0.050

2.153

S3
Second
8.758
0.180
1.677
19.24
2.069
−23.5551

S4
Lens
5.606
0.316

1.964

S5 (Stop)
Third
12.738
0.180
1.677
19.24
1.931
−135.69

S6
Lens
11.123
0.058

1.933

S7
Fourth
16.232
0.230
1.570
37.40
1.938
−50

S8
Lens
10.288
0.050

1.945

S9
Fifth
8.747
0.371
1.546
55.99
1.975
26.3664

S10
Lens
21.968
0.665

1.992

S11
Sixth
−17.654
0.220
1.677
19.24
1.998
57.4713

S12
Lens
−12.205
0.050

2.265

S13
Seventh
−11.802
0.205
1.677
19.24
2.358
−14.9962

S14
Lens
73.121
0.052

2.509

S15
Eighth
277.032
0.652
1.570
37.40
2.734
46.9895

S16
Lens
−29.619
0.475

2.928

S17
Ninth
9.578
0.519
1.570
37.40
3.554
−36.5362

S18
Lens
6.431
0.260

3.818

S19
Tenth
2.772
0.553
1.546
55.99
4.234
6.3574

S20
Lens
12.803
1.427

4.435

S21
Eleventh
−190.788
0.369
1.537
55.74
5.634
−5.4411

S22
Lens
2.967
0.206

6.046

S23
Filter
Infinity
0.245

6.942

S24

Infinity
0.755

7.016

S25
Imaging
Infinity

7.171

Surface

In an example, a total focal length f of the optical imaging system 300 according to the third embodiment of the present disclosure is 7.6112 mm, Fno is 1.69, IMG HT is 7.15 mm, and FOV is 84.702°.

In the third embodiment of the present disclosure, the first lens 301 has a positive refractive power, a first surface of the first lens 301 has a shape convex in the paraxial region, and a second surface of the first lens 301 has a shape concave in the paraxial region.

The second lens 302 has a negative refractive power, a first surface of the second lens 302 has a shape convex in the paraxial region, and a second surface of the second lens 302 has a shape concave in the paraxial region.

The third lens 303 has a negative refractive power, a first surface of the third lens 303 has a shape convex in the paraxial region, and a second surface of the third lens 303 has a shape concave in the paraxial region.

The fourth lens 304 has a negative refractive power, a first surface of the fourth lens 304 has a shape convex in the paraxial region, and a second surface of the fourth lens 304 has a shape concave in the paraxial region.

The fifth lens 305 has a positive refractive power, a first surface of the fifth lens 305 has a shape convex in the paraxial region, and a second surface of the fifth lens 305 has a shape concave in the paraxial region.

The sixth lens 306 has a positive refractive power, a first surface of the sixth lens 306 has a shape concave in the paraxial region, and a second surface of the sixth lens 306 has a shape convex in the paraxial region.

The seventh lens 307 has a negative refractive power, and a first surface and a second surface of the seventh lens 307 have a shape concave in the paraxial region.

The eighth lens 308 has a positive refractive power, and a first surface and a second surface of the eighth lens 308 have a shape convex in the paraxial region.

The ninth lens 309 has a negative refractive power, a first surface of the ninth lens 309 has a shape convex in the paraxial region, and a second surface of the ninth lens 309 has a shape concave in the paraxial region.

The tenth lens 310 has a positive refractive power, a first surface of the tenth lens 310 has a shape convex in the paraxial region, and a second surface of the tenth lens 310 has a shape concave in the paraxial region.

The eleventh lens 311 has a negative refractive power, and a first surface and a second surface of the eleventh lens 311 have a shape concave in the paraxial region.

Additionally, one or any combination of any two or more of the ninth lens 309 to the eleventh lens 311 has at least one inflection point formed on either one both of the first and second surfaces.

Each surface of each of the first lens 301 to the eleventh lens 311 has aspherical coefficients as illustrated in Table 6 below. For example, both the object-side surface and the image-side surface of each of the first lens 301 to the eleventh lens 311 are aspherical surfaces.

TABLE 6

S1
S2
S3
S4
S5
S6
S7
S8

Conic
−3.526E−01
1.154E+01
−1.634E+01
−8.360E+00
−1.592E+01
−6.823E+01
−6.714E+01
−9.900E+01

Constant (K)

Fourth
1.596E−03
2.220E−03
−2.804E−03
−5.127E−03
−1.336E−02
2.231E−03
2.259E−03
−8.200E−03

Coefficient (A)

Sixth
1.769E−03
−1.951E−03
3.537E−06
−5.001E−04
4.558E−03
4.025E−03
5.856E−03
4.250E−04

Coefficient (B)

Eighth
−4.006E−03
1.265E−03
5.386E−03
1.534E−02
−5.090E−03
−2.170E−02
−3.820E−02
−1.727E−02

Coefficient (C)

Tenth
6.189E−03
−1.684E−03
−1.419E−02
−4.122E−02
8.400E−03
6.016E−02
1.098E−01
5.355E−02

Coefficient (D)

Twelfth
−6.293E−03
1.619E−03
2.060E−02
6.573E−02
−1.334E−02
−1.200E−01
−2.123E−01
−9.368E−02

Coefficient (E)

Fourteenth
4.437E−03
−6.994E−04
−1.925E−02
−7.026E−02
1.746E−02
1.669E−01
2.829E−01
1.111E−01

Coefficient (F)

Sixteenth
−2.229E−03
−8.249E−05
1.246E−02
5.288E−02
−1.691E−02
−1.625E−01
−2.646E−01
−9.330E−02

Coefficient (G)

Eighteenth
8.097E−04
2.675E−04
−5.763E−03
−2.864E−02
1.164E−02
1.116E−01
1.758E−01
5.625E−02

Coefficient (H)

Twentieth
−2.131E−04
−1.558E−04
1.924E−03
1.122E−02
−5.634E−03
−5.420E−02
−8.308E−02
−2.437E−02

Coefficient (J)

Twenty-Second
4.024E−05
5.043E−05
−4.602E−04
−3.151E−03
1.899E−03
1.846E−02
2.767E−02
7.493E−03

Coefficient (L)

Twenty-Fourth
−5.313E−06
−1.017E−05
7.695E−05
6.191E−04
−4.354E−04
−4.306E−03
−6.331E−03
−1.590E−03

Coefficient (M)

Twenty-Sixth
4.655E−07
1.273E−06
−8.540E−06
−8.081E−05
6.468E−05
6.545E−04
9.458E−04
2.208E−04

Coefficient (N)

Twenty-Eighth
−2.431E−08
−9.094E−08
5.650E−07
6.297E−06
−5.607E−06
−5.832E−05
−8.298E−05
−1.806E−05

Coefficient (O)

Thirtieth
5.723E−10
2.840E−09
−1.686E−08
−2.217E−07
2.152E−07
2.309E−06
3.239E−06
6.591E−07

Coefficient (P)

S9
S10
S11
S12
S13
S14
S15
S16

Conic
−8.343E+01
6.375E+01
7.350E+01
2.623E+01
1.789E+01
9.900E+01
9.900E+01
9.095E+01

Constant (K)

Fourth
2.895E−03
1.128E−03
−6.544E−04
7.415E−02
8.328E−02
1.760E−02
6.138E−04
−7.435E−03

Coefficient (A)

Sixth
−4.533E−03
−7.850E−03
−3.296E−02
−2.055E−01
−2.349E−01
−1.028E−01
−5.640E−02
−9.893E−03

Coefficient (B)

Eighth
−7.889E−03
2.005E−02
3.823E−02
3.079E−01
3.769E−01
1.913E−01
1.050E−01
5.353E−03

Coefficient (C)

Tenth
2.352E−02
−4.189E−02
−3.175E−02
−3.290E−01
−4.158E−01
−2.170E−01
−1.139E−01
−5.294E−04

Coefficient (D)

Twelfth
−3.194E−02
5.858E−02
1.505E−02
2.572E−01
3.275E−01
1.657E−01
8.274E−02
−1.542E−03

Coefficient (E)

Fourteenth
2.706E−02
−5.727E−02
−1.777E−03
−1.505E−01
−1.894E−01
−8.967E−02
−4.244E−02
1.435E−03

Coefficient (F)

Sixteenth
−1.482E−02
4.001E−02
−2.498E−03
6.685E−02
8.191E−02
3.529E−02
1.576E−02
−7.123E−04

Coefficient (G)

Eighteenth
4.906E−03
−2.019E−02
1.682E−03
−2.254E−02
−2.667E−02
−1.022E−02
−4.285E−03
2.316E−04

Coefficient (H)

Twentieth
−6.374E−04
7.359E−03
−4.083E−04
5.696E−03
6.501E−03
2.179E−03
8.528E−04
−5.168E−05

Coefficient (J)

Twenty-Second
−2.047E−04
−1.917E−03
−2.488E−05
−1.054E−03
−1.166E−03
−3.379E−04
−1.229E−04
7.961E−06

Coefficient (L)

Twenty-Fourth
1.210E−04
3.476E−04
4.212E−05
1.375E−04
1.492E−04
3.705E−05
1.248E−05
−8.307E−07

Coefficient (M)

Twenty-Sixth
−2.700E−05
−4.160E−05
−1.132E−05
−1.188E−05
−1.284E−05
−2.724E−06
−8.473E−07
5.592E−08

Coefficient (N)

Twenty-Eighth
3.006E−06
2.951E−06
1.392E−06
6.056E−07
6.658E−07
1.205E−07
3.449E−08
−2.188E−09

Coefficient (O)

Thirtieth
−1.373E−07
−9.371E−08
−6.825E−08
−1.365E−08
−1.569E−08
−2.427E−09
−6.362E−10
3.774E−11

Coefficient (P)

S17
S18
S19
S20
S21
S22

Conic
−1.482E+01
−8.087E+01
−1.147E+01
−2.225E+01
9.900E+01
−1.217E+01

Constant (K)

Fourth
−4.499E−03
−2.386E−02
2.440E−02
2.307E−02
−8.254E−02
−3.832E−02

Coefficient (A)

Sixth
1.060E−03
2.887E−05
−2.084E−02
−7.120E−03
2.921E−02
1.251E−02

Coefficient (B)

Eighth
−2.125E−03
4.967E−03
1.090E−02
5.032E−04
−7.805E−03
−2.958E−03

Coefficient (C)

Tenth
1.730E−03
−3.520E−03
−4.686E−03
6.101E−05
1.523E−03
4.957E−04

Coefficient (D)

Twelfth
−9.104E−04
1.508E−03
1.494E−03
1.820E−06
−2.156E−04
−5.986E−05

Coefficient (E)

Fourteenth
3.222E−04
−4.606E−04
−3.431E−04
−7.453E−06
2.253E−05
5.275E−06

Coefficient (F)

Sixteenth
−7.968E−05
1.031E−04
5.659E−05
1.914E−06
−1.754E−06
−3.420E−07

Coefficient (G)

Eighteenth
1.398E−05
−1.689E−05
−6.708E−06
−2.493E−07
1.016E−07
1.638E−08

Coefficient (H)

Twentieth
−1.741E−06
2.008E−06
5.697E−07
1.929E−08
−4.346E−09
−5.785E−10

Coefficient (J)

Twenty-Second
1.517E−07
−1.703E−07
−3.425E−08
−8.862E−10
1.348E−10
1.488E−11

Coefficient (L)

Twenty-Fourth
−8.969E−09
9.991E−09
1.420E−09
2.068E−11
−2.944E−12
−2.716E−13

Coefficient (M)

Twenty-Sixth
3.393E−10
−3.840E−10
−3.853E−11
−3.516E−14
4.285E−14
3.336E−15

Coefficient (N)

Twenty-Eighth
−7.319E−12
8.683E−12
6.156E−13
−8.865E−15
−3.729E−16
−2.475E−17

Coefficient (O)

Thirtieth
6.718E−14
−8.744E−14
−4.384E−15
1.352E−16
1.467E−18
8.386E−20

Coefficient (P)

Additionally, the optical imaging system 400 described above may have the aberration characteristics illustrated in FIG. 6.

FIG. 7 is a structural view of an optical imaging system according to a fourth embodiment of the present disclosure, and FIG. 8 is a view illustrating aberration characteristics of the optical imaging system illustrated in FIG. 7.

Referring to FIGS. 7 and 8, an optical imaging system 400 according to the fourth embodiment of the present disclosure may include a first lens 401, a second lens 402, a third lens 403, a fourth lens 404, a fifth lens 405, a sixth lens 406, a seventh lens 407, an eighth lens 408, a ninth lens 409, a tenth lens 410, and an eleventh lens 411, and may further include a filter 412 and an image sensor IS.

The optical imaging system 400 according to the fourth embodiment of the present disclosure may focus an image on an imaging surface 413. The imaging surface 413 may be a surface on which an image is focused by the optical imaging system 400. For example, the imaging surface 413 may be a surface of the image sensor IS on which light is received.

An aperture (not shown) may be disposed between the second lens 402 and the third lens 403.

The lens characteristics of each lens (a radius of curvature of the first surface, a radius of curvature of the second surface, a thickness of the lens or a distance between the lens and the next lens, a refractive index, an Abbe number, an effective radius, and a focal length) are illustrated in Table 7 below.

TABLE 7

Surface

Radius of
Thickness/
Refractive
Abbe
Effective
Focal

Number
Element
Curvature
Distance
Index
Number
Radius
Length

S1
First
3.214
1.206
1.546
55.99
2.362
7.3197

S2
Lens
14.254
0.050

2.143

S3
Second
8.169
0.180
1.656
21.54
2.064
−25.2244

S4
Lens
5.420
0.321

1.961

S5 (Stop)
Third
12.694
0.180
1.677
19.24
1.927
−51.9541

S6
Lens
9.274
0.058

1.932

S7
Fourth
12.824
0.230
1.546
55.99
1.939
40.3714

S8
Lens
30.488
0.050

1.954

S9
Fifth
22.297
0.365
1.546
55.99
1.984
163.88

S10
Lens
29.529
0.596

1.991

S11
Sixth
−17.073
0.221
1.677
19.24
1.996
−50

S12
Lens
−34.630
0.050

2.305

S13
Seventh
−32.394
0.338
1.656
21.54
2.409
−29.3629

S14
Lens
47.664
0.050

2.540

S15
Eighth
78.396
0.605
1.570
37.40
2.736
40.1819

S16
Lens
−32.258
0.479

2.949

S17
Ninth
8.740
0.507
1.570
37.40
3.528
−50.9775

S18
Lens
6.577
0.278

3.783

S19
Tenth
2.780
0.534
1.546
55.99
4.240
6.7211

S20
Lens
10.706
1.464

4.434

S21
Eleventh
−621.909
0.360
1.537
55.74
5.559
−5.4928

S22
Lens
2.962
0.207

5.987

S23
Filter
Infinity
0.245

6.877

S24

Infinity
0.755

6.960

S25
Imaging
Infinity

7.151

Surface

In an example, a total focal length f of the optical imaging system 400 according to the fourth embodiment of the present disclosure is 7.5711 mm, Fno is 1.69, IMG HT is 7.15 mm, and FOV is 85°.

In the fourth embodiment of the present disclosure, the first lens 401 has a positive refractive power, a first surface of the first lens 401 has a shape convex in the paraxial region, and a second surface of the first lens 401 has a shape concave in the paraxial region.

The second lens 402 has a negative refractive power, a first surface of the second lens 402 has a shape convex in the paraxial region, and a second surface of the second lens 402 has a shape concave in the paraxial region.

The third lens 403 has a negative refractive power, a first surface of the third lens 403 has a shape convex in the paraxial region, and a second surface of the third lens 403 has a shape concave in the paraxial region.

The fourth lens 404 has a positive refractive power, a first surface of the fourth lens 404 has a shape convex in the paraxial region, and a second surface of the fourth lens 404 has a shape concave in the paraxial region.

The fifth lens 405 has a positive refractive power, a first surface of the fifth lens 405 has a shape convex in the paraxial region, and a second surface of the fifth lens 405 has a shape concave in the paraxial region.

The sixth lens 406 has a negative refractive power, a first surface of the sixth lens 406 has a shape concave in the paraxial region, and a second surface of the sixth lens 406 has a shape convex in the paraxial region.

The seventh lens 407 has a negative refractive power, and a first surface and a second surface of the seventh lens 407 have a shape concave in the paraxial region.

The eighth lens 408 has a positive refractive power, and a first surface and a second surface of the eighth lens 408 have a shape convex in the paraxial region.

The ninth lens 409 has a negative refractive power, a first surface of the ninth lens 409 has a shape convex in the paraxial region, and a second surface of the ninth lens 409 has a shape concave in the paraxial region.

The tenth lens 410 has a positive refractive power, a first surface of the tenth lens 410 has a shape convex in the paraxial region, and a second surface of the tenth lens 410 has a shape concave in the paraxial region.

The eleventh lens 411 has a negative refractive power, and a first surface and a second surface of the eleventh lens 411 have a shape concave in the paraxial region.

Additionally, any one or any combination of any two or more of the ninth lens 409 to the eleventh lens 411 has at least one inflection point formed on either one or both of the first and second surfaces.

Each surface of each of the first lens 401 to the eleventh lens 411 has aspherical coefficients as illustrated in Table 8 below. For example, both the object-side surface and the image-side surface of each of the first lens 401 to the eleventh lens 411 are aspherical surfaces.

TABLE 8

S1
S2
S3
S4
S5
S6
S7
S8

Conic
−3.349E−01
1.340E+01
−1.748E+01
−8.533E+00
−1.541E+01
−8.308E+01
−9.891E+01
−9.900E+01

Constant (K)

Fourth
1.583E−03
4.525E−03
7.189E−04
−3.201E−03
−1.494E−02
1.571E−03
4.537E−03
−3.867E−03

Coefficient (A)

Sixth
2.111E−03
−6.547E−03
−7.271E−03
−3.299E−03
3.428E−03
−2.029E−03
−3.119E−03
−9.272E−03

Coefficient (B)

Eighth
−5.059E−03
4.148E−03
8.689E−03
1.077E−02
2.852E−03
1.037E−03
−1.045E−02
1.100E−02

Coefficient (C)

Tenth
8.217E−03
1.021E−03
−7.261E−03
−2.152E−02
−9.709E−03
7.199E−03
4.344E−02
−1.061E−02

Coefficient (D)

Twelfth
−8.782E−03
−5.573E−03
5.318E−03
3.138E−02
1.369E−02
−3.471E−02
−1.059E−01
7.073E−03

Coefficient (E)

Fourteenth
6.494E−03
6.712E−03
−3.183E−03
−3.187E−02
−1.024E−02
7.215E−02
1.679E−01
2.075E−03

Coefficient (F)

Sixteenth
−3.416E−03
−4.861E−03
1.419E−03
2.280E−02
3.029E−03
−8.834E−02
−1.787E−01
−1.092E−02

Coefficient (G)

Eighteenth
1.297E−03
2.390E−03
−4.246E−04
−1.162E−02
1.399E−03
6.997E−02
1.304E−01
1.235E−02

Coefficient (H)

Twentieth
−3.565E−04
−8.251E−04
6.668E−05
4.232E−03
−1.864E−03
−3.732E−02
−6.599E−02
−7.803E−03

Coefficient (J)

Twenty-Second
7.025E−05
2.003E−04
3.314E−06
−1.090E−03
9.135E−04
1.356E−02
2.312E−02
3.104E−03

Coefficient (L)

Twenty-Fourth
−9.674E−06
−3.350E−05
−4.148E−06
1.933E−04
−2.579E−04
−3.317E−03
−5.500E−03
−7.951E−04

Coefficient (M)

Twenty-Sixth
8.836E−07
3.677E−06
9.105E−07
−2.239E−05
4.390E−05
5.228E−04
8.473E−04
1.277E−04

Coefficient (N)

Twenty-Eighth
−4.809E−08
−2.383E−07
−9.395E−08
1.518E−06
−4.204E−06
−4.796E−05
−7.626E−05
−1.175E−05

Coefficient (O)

Thirtieth
1.180E−09
6.912E−09
3.943E−09
−4.537E−08
1.746E−07
1.946E−06
3.043E−06
4.742E−07

Coefficient (P)

S9
S10
S11
S12
S13
S14
S15
S16

Conic
−5.912E+01
6.732E+01
6.981E+01
9.900E+01
8.769E+01
8.449E+01
9.900E+01
8.889E+01

Constant (K)

Fourth
−8.038E−04
3.831E−04
2.408E−03
7.749E−02
8.034E−02
2.691E−02
1.884E−02
−6.894E−03

Coefficient (A)

Sixth
−7.649E−03
−1.034E−02
−5.772E−02
−2.588E−01
−2.541E−01
−1.323E−01
−1.100E−01
−1.375E−02

Coefficient (B)

Eighth
1.673E−02
2.960E−02
1.025E−01
4.661E−01
4.586E−01
2.357E−01
1.863E−01
1.171E−02

Coefficient (C)

Tenth
−3.770E−02
−6.103E−02
−1.281E−01
−5.795E−01
−5.606E−01
−2.575E−01
−1.901E−01
−6.085E−03

Coefficient (D)

Twelfth
6.803E−02
8.583E−02
1.103E−01
5.091E−01
4.779E−01
1.893E−01
1.308E−01
1.897E−03

Coefficient (E)

Fourteenth
−8.593E−02
−8.542E−02
−6.524E−02
−3.225E−01
−2.911E−01
−9.815E−02
−6.350E−02
−1.602E−04

Coefficient (F)

Sixteenth
7.500E−02
6.112E−02
2.536E−02
1.496E−01
1.290E−01
3.683E−02
2.228E−02
−1.561E−04

Coefficient (G)

Eighteenth
−4.586E−02
−3.171E−02
−5.431E−03
−5.119E−02
−4.195E−02
−1.013E−02
−5.710E−03
8.670E−05

Coefficient (H)

Twentieth
1.980E−02
1.192E−02
−7.899E−05
1.291E−02
1.002E−02
2.047E−03
1.070E−03
−2.386E−05

Coefficient (J)

Twenty-Second
−6.013E−03
−3.212E−03
4.594E−04
−2.371E−03
−1.735E−03
−3.011E−04
−1.453E−04
4.105E−06

Coefficient (L)

Twenty-Fourth
1.256E−03
6.035E−04
−1.530E−04
3.083E−04
2.120E−04
3.141E−05
1.394E−05
−4.576E−07

Coefficient (M)

Twenty-Sixth
−1.718E−04
−7.505E−05
2.616E−05
−2.687E−05
−1.733E−05
−2.207E−06
−8.966E−07
3.212E−08

Coefficient (N)

Twenty-Eighth
1.383E−05
5.544E−06
−2.415E−06
1.408E−06
8.498E−07
9.389E−08
3.475E−08
−1.291E−09

Coefficient (O)

Thirtieth
−4.959E−07
−1.839E−07
9.581E−08
−3.354E−08
−1.890E−08
−1.830E−09
−6.137E−10
2.264E−11

Coefficient (P)

S17
S18
S19
S20
S21
S22

Conic
−1.610E+01
−7.693E+01
−1.091E+01
−1.989E+01
−9.900E+01
−1.171E+01

Constant (K)

Fourth
−5.144E−03
−2.455E−02
2.377E−02
2.349E−02
−8.332E−02
−3.993E−02

Coefficient (A)

Sixth
1.401E−04
1.218E−03
−2.013E−02
−8.210E−03
2.994E−02
1.367E−02

Coefficient (B)

Eighth
−1.051E−03
4.065E−03
1.052E−02
1.371E−03
−8.241E−03
−3.433E−03

Coefficient (C)

Tenth
1.156E−03
−3.050E−03
−4.507E−03
−3.291E−04
1.675E−03
6.177E−04

Coefficient (D)

Twelfth
−7.218E−04
1.322E−03
1.425E−03
1.198E−04
−2.483E−04
−8.077E−05

Coefficient (E)

Fourteenth
2.832E−04
−4.053E−04
−3.243E−04
−3.281E−05
2.718E−05
7.758E−06

Coefficient (F)

Sixteenth
−7.507E−05
9.101E−05
5.295E−05
5.861E−06
−2.209E−06
−5.511E−07

Coefficient (G)

Eighteenth
1.381E−05
−1.503E−05
−6.211E−06
−6.979E−07
1.331E−07
2.902E−08

Coefficient (H)

Twentieth
−1.772E−06
1.811E−06
5.220E−07
5.646E−08
−5.899E−09
−1.129E−09

Coefficient (J)

Twenty-Second
1.567E−07
−1.561E−07
−3.106E−08
−3.103E−09
1.892E−10
3.195E−11

Coefficient (L)

Twenty-Fourth
−9.262E−09
9.330E−09
1.274E−09
1.132E−10
−4.266E−12
−6.399E−13

Coefficient (M)

Twenty-Sixth
3.442E−10
−3.656E−10
−3.425E−11
−2.594E−12
6.405E−14
8.585E−15

Coefficient (N)

Twenty-Eighth
−7.097E−12
8.426E−12
5.417E−13
3.320E−14
−5.748E−16
−6.916E−17

Coefficient (O)

Thirtieth
5.924E−14
−8.643E−14
−3.821E−15
−1.754E−16
2.332E−18
2.527E−19

Coefficient (P)

Additionally, the optical imaging system 400 described above may have the aberration characteristics illustrated in FIG. 8.

FIG. 9 is a structural view of an optical imaging system according to a fifth embodiment of the present disclosure, and FIG. 10 is a view illustrating aberration characteristics of the optical imaging system illustrated in FIG. 9.

Referring to FIGS. 9 and 10, an optical imaging system 500 according to the fifth embodiment of the present disclosure may include a first lens 501, a second lens 502, a third lens 503, a fourth lens 504, a fifth lens 505, a sixth lens 506, a seventh lens 507, an eighth lens 508, a ninth lens 509, a tenth lens 510, and an eleventh lens 511, and may further include a filter 512 and an image sensor IS.

The optical imaging system 500 according to the fifth embodiment of the present disclosure may focus an image on an imaging surface 513. The imaging surface 513 may be a surface on which an image is focused by the optical imaging system 500. For example, the imaging surface 513 may be a surface of the image sensor IS on which light is received.

An aperture (not shown) may be disposed between the second lens 502 and the third lens 503.

The lens characteristics of each lens (a radius of curvature of the first surface, a radius of curvature of the second surface, a thickness of the lens or a distance between the lens and the next lens, a refractive index, an Abbe number, an effective radius, and a focal length) are illustrated in Table 9 below.

TABLE 9

Surface

Radius of
Thickness/
Refractive
Abbe
Effective
Focal

Number
Element
Curvature
Distance
Index
Number
Radius
Length

S1
First
3.208
1.214
1.546
55.99
2.377
7.3030

S2
Lens
14.240
0.050

2.155

S3
Second
8.547
0.180
1.640
23.96
2.075
−26.933

S4
Lens
5.666
0.325

1.981

S5 (Stop)
Third
13.361
0.180
1.677
19.24
1.940
−30.8627

S6
Lens
8.105
0.051

1.939

S7
Fourth
10.271
0.281
1.546
55.99
1.946
23.8995

S8
Lens
47.851
0.050

1.958

S9
Fifth
31.722
0.335
1.546
55.99
1.988
−396.358

S10
Lens
27.562
0.612

1.997

S11
Sixth
−16.894
0.221
1.677
19.24
2.001
−70.8229

S12
Lens
−26.224
0.050

2.291

S13
Seventh
−24.181
0.414
1.667
20.38
2.405
50

S14
Lens
−14.109
0.050

2.542

S15
Eighth
−12.151
0.508
1.546
55.99
2.751
−38.5306

S16
Lens
−29.205
0.543

2.950

S17
Ninth
10.014
0.523
1.570
37.40
3.590
−19.7783

S18
Lens
5.202
0.177

3.868

S19
Tenth
2.539
0.554
1.546
55.99
4.119
5.8428

S20
Lens
11.502
1.449

4.377

S21
Eleventh
−508.736
0.360
1.537
55.74
5.518
−5.5473

S22
Lens
2.995
0.202

5.951

S23
Filter
Infinity
0.245

6.880

S24

Infinity
0.755

6.963

S25
Imaging
Infinity

7.150

Surface

In an example, a total focal length f of the optical imaging system 500 according to the fifth embodiment of the present disclosure is 7.6078 mm, Fno is 1.69, IMG HT is 7.15 mm, and FOV is 84.726°.

In the fifth embodiment of the present disclosure, the first lens 501 has a positive refractive power, a first surface of the first lens 501 has a shape convex in the paraxial region, and a second surface of the first lens 501 has a shape concave in the paraxial region.

The second lens 502 has a negative refractive power, a first surface of the second lens 502 has a shape convex in the paraxial region, and a second surface of the second lens 502 has a shape concave in the paraxial region.

The third lens 503 has a negative refractive power, a first surface of the third lens 503 has a shape convex in the paraxial region, and a second surface of the third lens 503 has a shape concave in the paraxial region.

The fourth lens 504 has a positive refractive power, a first surface of the fourth lens 504 has a shape convex in the paraxial region, and a second surface of the fourth lens 504 has a shape concave in the paraxial region.

The fifth lens 505 has a negative refractive power, a first surface of the fifth lens 505 has a shape convex in the paraxial region, and a second surface of the fifth lens 505 has a shape concave in the paraxial region.

The sixth lens 506 has a negative refractive power, a first surface of the sixth lens 506 has a shape concave in the paraxial region, and a second surface of the sixth lens 506 has a shape convex in the paraxial region.

The seventh lens 507 has a positive refractive power, a first surface of the seventh lens 507 has a shape concave in the paraxial region, and a second surface of the seventh lens 507 has a shape convex in the paraxial region.

The eighth lens 508 has a negative refractive power, a first surface of the eighth lens 508 has a shape concave in the paraxial region, and a second surface of the eighth lens 508 has a shape convex in the paraxial region.

The ninth lens 509 has a negative refractive power, a first surface of the ninth lens 509 has a shape convex in the paraxial region, and a second surface of the ninth lens 509 has a shape concave in the paraxial region.

The tenth lens 510 has a positive refractive power, a first surface of the tenth lens 510 has a shape convex in the paraxial region, and a second surface of the tenth lens 510 has a shape concave in the paraxial region.

The eleventh lens 511 has a negative refractive power, and a first surface and a second surface of the eleventh lens 511 have a shape concave in the paraxial region.

Additionally, any one or any combination of any two or more of the ninth lens 509 to the eleventh lens 511 has at least one inflection point formed on either one or both of the first and second surfaces.

Each surface of each of the first lens 501 to the eleventh lens 511 has aspherical coefficients as illustrated in Table 10 below. For example, both the object-side surface and the image-side surface of each of the first lens 501 to the eleventh lens 511 are aspherical surfaces.

TABLE 10

S1
S2
S3
S4
S5
S6
S7
S8

Conic
−3.535E−01
1.305E+01
−1.510E+01
−8.851E+00
−2.072E+01
−6.151E+01
−6.376E+01
−9.900E+01

Constant (K)

Fourth
1.491E−03
3.868E−03
5.467E−04
−2.724E−03
−1.586E−02
1.049E−03
3.670E−03
−5.039E−03

Coefficient (A)

Sixth
2.490E−03
−4.632E−03
−4.445E−03
−2.005E−03
5.173E−03
1.647E−03
2.158E−03
−2.348E−03

Coefficient (B)

Eighth
−6.256E−03
−4.245E−06
5.767E−04
6.124E−03
1.033E−03
5.412E−03
−5.737E−03
−3.877E−03

Coefficient (C)

Tenth
1.030E−02
7.541E−03
8.000E−03
−1.315E−02
−1.321E−02
−3.363E−02
−4.505E−03
1.731E−03

Coefficient (D)

Twelfth
−1.111E−02
−1.274E−02
−1.465E−02
2.105E−02
2.766E−02
6.453E−02
1.027E−02
1.108E−02

Coefficient (E)

Fourteenth
8.278E−03
1.224E−02
1.532E−02
−2.280E−02
−3.238E−02
−6.725E−02
4.269E−03
−2.027E−02

Coefficient (F)

Sixteenth
−4.384E−03
−7.896E−03
−1.093E−02
1.703E−02
2.458E−02
4.121E−02
−2.545E−02
1.764E−02

Coefficient (G)

Eighteenth
1.674E−03
3.587E−03
5.564E−03
−8.937E−03
−1.277E−02
−1.345E−02
3.078E−02
−9.172E−03

Coefficient (H)

Twentieth
−4.623E−04
−1.164E−03
−2.047E−03
3.312E−03
4.611E−03
4.644E−04
−2.040E−02
2.969E−03

Coefficient (J)

Twenty-Second
9.146E−05
2.685E−04
5.400E−04
−8.607E−04
−1.151E−03
1.562E−03
8.484E−03
−5.708E−04

Coefficient (L)

Twenty-Fourth
−1.263E−05
−4.298E−05
−9.955E−05
1.529E−04
1.928E−04
−7.011E−04
−2.276E−03
5.055E−05

Coefficient (M)

Twenty-Sixth
1.156E−06
4.540E−06
1.217E−05
−1.762E−05
−2.032E−05
1.501E−04
3.835E−04
2.100E−06

Coefficient (N)

Twenty-Eighth
−6.300E−08
−2.843E−07
−8.860E−07
1.182E−06
1.180E−06
−1.671E−05
−3.701E−05
−8.734E−07

Coefficient (O)

Thirtieth
1.547E−09
7.995E−09
2.905E−08
−3.472E−08
−2.683E−08
7.764E−07
1.562E−06
5.719E−08

Coefficient (P)

S9
S10
S11
S12
S13
S14
S15
S16

Conic
−4.437E+01
8.188E+01
6.844E+01
7.658E+01
4.814E+01
−9.828E+01
−9.900E+01
8.737E+01

Constant (K)

Fourth
−2.593E−04
1.520E−03
3.918E−03
9.540E−02
1.111E−01
1.146E−01
1.094E−01
−6.048E−03

Coefficient (A)

Sixth
−4.453E−03
−1.130E−02
−5.845E−02
−3.401E−01
−3.628E−01
−2.976E−01
−2.875E−01
−2.147E−02

Coefficient (B)

Eighth
6.110E−03
3.279E−02
1.200E−01
6.278E−01
6.290E−01
4.180E−01
3.925E−01
2.205E−02

Coefficient (C)

Tenth
−2.728E−02
−7.229E−02
−1.685E−01
−7.707E−01
−7.210E−01
−3.817E−01
−3.428E−01
−1.383E−02

Coefficient (D)

Twelfth
6.719E−02
1.077E−01
1.595E−01
6.603E−01
5.746E−01
2.375E−01
2.025E−01
5.838E−03

Coefficient (E)

Fourteenth
−9.471E−02
−1.117E−01
−1.046E−01
−4.087E−01
−3.289E−01
−1.039E−01
−8.367E−02
−1.640E−03

Coefficient (F)

Sixteenth
8.619E−02
8.248E−02
4.738E−02
1.865E−01
1.381E−01
3.260E−02
2.463E−02
2.760E−04

Coefficient (G)

Eighteenth
−5.356E−02
−4.390E−02
−1.412E−02
−6.328E−02
−4.298E−02
−7.406E−03
−5.214E−03
−1.313E−05

Coefficient (H)

Twentieth
2.325E−02
1.687E−02
2.316E−03
1.592E−02
9.899E−03
1.218E−03
7.935E−04
−5.949E−06

Coefficient (J)

Twenty-Second
−7.061E−03
−4.637E−03
1.519E−05
−2.929E−03
−1.666E−03
−1.431E−04
−8.587E−05
1.710E−06

Coefficient (L)

Twenty-Fourth
1.471E−03
8.884E−04
−1.022E−04
3.824E−04
1.990E−04
1.167E−05
6.444E−06
−2.307E−07

Coefficient (M)

Twenty-Sixth
−2.001E−04
−1.126E−04
2.344E−05
−3.355E−05
−1.598E−05
−6.240E−07
−3.193E−07
1.790E−08

Coefficient (N)

Twenty-Eighth
1.602E−05
8.487E−06
−2.457E−06
1.772E−06
7.734E−07
1.953E−08
9.447E−09
−7.651E−10

Coefficient (O)

Thirtieth
−5.705E−07
−2.876E−07
1.049E−07
−4.258E−08
−1.703E−08
−2.690E−10
−1.279E−10
1.399E−11

Coefficient (P)

S17
S18
S19
S20
S21
S22

Conic
−1.400E+01
−6.879E+01
−1.227E+01
−1.830E+01
9.900E+01
−1.239E+01

Constant (K)

Fourth
−2.498E−03
−2.085E−02
2.429E−02
2.125E−02
−8.442E−02
−3.964E−02

Coefficient (A)

Sixth
−9.182E−04
−1.334E−03
−2.082E−02
−5.102E−03
3.095E−02
1.357E−02

Coefficient (B)

Eighth
−1.875E−03
4.652E−03
1.099E−02
−6.200E−04
−8.637E−03
−3.395E−03

Coefficient (C)

Tenth
2.372E−03
−2.864E−03
−4.819E−03
4.023E−04
1.760E−03
6.041E−04

Coefficient (D)

Twelfth
−1.459E−03
1.123E−03
1.563E−03
−5.471E−05
−2.594E−04
−7.769E−05

Coefficient (E)

Fourteenth
5.599E−04
−3.256E−04
−3.631E−04
−4.093E−06
2.814E−05
7.311E−06

Coefficient (F)

Sixteenth
−1.457E−04
7.111E−05
6.020E−05
2.532E−06
−2.264E−06
−5.079E−07

Coefficient (G)

Eighteenth
2.657E−05
−1.157E−05
−7.136E−06
−4.271E−07
1.352E−07
2.615E−08

Coefficient (H)

Twentieth
−3.436E−06
1.376E−06
6.033E−07
4.153E−08
−5.951E−09
−9.959E−10

Coefficient (J)

Twenty-Second
3.130E−07
−1.169E−07
−3.594E−08
−2.599E−09
1.899E−10
2.770E−11

Coefficient (L)

Twenty-Fourth
−1.960E−08
6.860E−09
1.469E−09
1.065E−10
−4.267E−12
−5.473E−13

Coefficient (M)

Twenty-Sixth
8.013E−10
−2.631E−10
−3.911E−11
−2.774E−12
6.393E−14
7.277E−15

Coefficient (N)

Twenty-Eighth
−1.921E−11
5.918E−12
6.087E−13
4.175E−14
−5.731E−16
−5.835E−17

Coefficient (O)

Thirtieth
2.042E−13
−5.914E−14
−4.190E−15
−2.781E−16
2.325E−18
2.131E−19

Coefficient (P)

Additionally, the optical imaging system 500 described above may have the aberration characteristics illustrated in FIG. 10.

FIG. 11 is a structural view of an optical imaging system according to a sixth embodiment of the present disclosure, and FIG. 12 is a view illustrating aberration characteristics of the optical imaging system illustrated in FIG. 11.

Referring to FIGS. 11 and 12, the optical imaging system 600 according to the sixth embodiment of the present disclosure may include a first lens 601, a second lens 602, a third lens 603, a fourth lens 604, a fifth lens 605, a sixth lens 606, a seventh lens 607, an eighth lens 608, a ninth lens 609, a tenth lens 610, and an eleventh lens 611, and may further include a filter 612 and an image sensor IS.

The optical imaging system 600 according to the sixth embodiment of the present disclosure may focus an image on an imaging surface 613. The imaging surface 613 may be a surface on which an image is focused by the optical imaging system. For example, the imaging surface 613 may be a surface of the image sensor IS on which light is received.

An aperture (not shown) may be disposed between the second lens 602 and the third lens 603.

The lens characteristics of each lens (a radius of curvature of the first surface, a radius of curvature of the second surface, a thickness of the lens or a distance between the lens and the next lens, a refractive index, an Abbe number, an effective radius, and a focal length) are illustrated in Table 11 below.

TABLE 11

Surface

Radius of
Thickness/
Refractive
Abbe
Effective
Focal

Number
Element
Curvature
Distance
Index
Number
Radius
Length

S1
First
3.213
1.223
1.546
55.99
2.370
7.2847

S2
Lens
14.501
0.050

2.144

S3
Second
8.151
0.180
1.667
20.38
2.059
−24.4048

S4
Lens
5.382
0.321

1.952

S5 (Stop)
Third
12.298
0.180
1.677
19.24
1.920
−51.9297

S6
Lens
9.057
0.058

1.925

S7
Fourth
12.545
0.236
1.546
55.99
1.933
37.9905

S8
Lens
31.552
0.057

1.946

S9
Fifth
22.930
0.336
1.546
55.99
1.976
534.303

S10
Lens
24.758
0.633

1.989

S11
Sixth
−18.538
0.221
1.677
19.24
1.996
54.5224

S12
Lens
−12.400
0.050

2.258

S13
Seventh
−12.397
0.223
1.667
20.38
2.362
−13.5978

S14
Lens
33.945
0.050

2.509

S15
Eighth
74.094
0.647
1.570
37.40
2.705
40.6144

S16
Lens
−33.555
0.463

2.902

S17
Ninth
8.066
0.571
1.570
37.40
3.505
33.3333

S18
Lens
13.657
0.404

3.772

S19
Tenth
3.838
0.519
1.546
55.99
4.223
9.1756

S20
Lens
15.640
1.302

4.403

S21
Eleventh
482.088
0.372
1.537
55.74
5.639
−5.3113

S22
Lens
2.833
0.232

6.117

S23
Filter
Infinity
0.245

6.921

S24

Infinity
0.755

6.998

S25
Imaging
Infinity

7.151

Surface

In an example, a total focal length f of the optical imaging system 600 according to the sixth embodiment of the present disclosure is 7.5785 mm, Fno is 1.69, IMG HT is 7.15 mm, and FOV is 84.953°.

In the sixth embodiment of the present disclosure, the first lens 601 has a positive refractive power, a first surface of the first lens 601 has a shape convex in the paraxial region, and the second surface of the first lens 601 has a shape concave in the paraxial region.

The second lens 602 has a negative refractive power, a first surface of the second lens 602 has a shape convex in the paraxial region, and a second surface of the second lens 602 has a shape concave in the paraxial region.

The third lens 603 has a negative refractive power, a first surface of the third lens 603 has a shape convex in the paraxial region, and a second surface of the third lens 603 has a shape concave in the paraxial region.

The fourth lens 604 has a positive refractive power, a first surface of the fourth lens 604 has a shape convex in the paraxial region, and a second surface of the fourth lens 604 has a shape concave in the paraxial region.

The fifth lens 605 has a positive refractive power, a first surface of the fifth lens 605 has a shape convex in the paraxial region, and a second surface of the fifth lens 605 has a shape concave in the paraxial region.

The sixth lens 606 has a positive refractive power, a first surface of the sixth lens 606 has a shape concave in the paraxial region, and a second surface of the sixth lens 606 has a shape convex in the paraxial region.

The seventh lens 607 has a negative refractive power, and a first surface and a second surface of the seventh lens 607 have a shape concave in the paraxial region.

The eighth lens 608 has a positive refractive power, and a first surface and a second surface of the eighth lens 608 have a convex shape in the paraxial region.

The ninth lens 609 has a positive refractive power, a first surface of the ninth lens 609 has a shape convex in the paraxial region, and a second surface of the ninth lens 609 has a shape concave in the paraxial region.

The tenth lens 610 has a positive refractive power, a first surface of the tenth lens 610 has a shape convex in the paraxial region, and a second surface of the tenth lens 610 has a shape concave in the paraxial region.

The eleventh lens 611 has a negative refractive power, a first surface of the eleventh lens 611 has a shape convex in the paraxial region, and a second surface of the eleventh lens 611 has a shape concave in the paraxial region.

Additionally, any one or any combination of any two or more of the ninth lens 609 to the eleventh lens 611 has at least one inflection point formed on either one or both of the first and second surfaces.

Each surface of each of the first lens 601 to the eleventh lens 611 has aspherical coefficients as illustrated in Table 12 below. For example, both the object-side surface and the image-side surface of each of the first lens 601 to the eleventh lens 611 are aspherical surfaces.

TABLE 12

S1
S2
S3
S4
S5
S6
S7
S8

Conic
−3.331E−01
1.335E+01
−1.703E+01
−8.104E+00
−1.540E+01
−8.161E+01
−9.900E+01
−9.900E+01

Constant (K)

Fourth
1.594E−03
4.512E−03
6.121E−04
−3.345E−03
−1.542E−02
8.443E−05
2.463E−03
−5.383E−03

Coefficient (A)

Sixth
1.986E−03
−5.906E−03
−5.840E−03
−1.714E−03
6.900E−03
3.361E−03
2.591E−03
−2.955E−03

Coefficient (B)

Eighth
−4.692E−03
2.813E−03
6.695E−03
8.504E−03
−4.121E−03
−8.028E−03
−2.299E−02
−8.570E−03

Coefficient (C)

Tenth
7.478E−03
2.123E−03
−7.030E−03
−2.053E−02
9.294E−04
1.630E−02
6.305E−02
2.992E−02

Coefficient (D)

Twelfth
−7.817E−03
−5.918E−03
7.581E−03
3.281E−02
1.101E−04
−3.993E−02
−1.290E−01
−5.331E−02

Coefficient (E)

Fourteenth
5.650E−03
6.552E−03
−6.447E−03
−3.497E−02
3.289E−03
7.227E−02
1.885E−01
6.760E−02

Coefficient (F)

Sixteenth
−2.907E−03
−4.616E−03
3.975E−03
2.585E−02
−7.055E−03
−8.535E−02
−1.920E−01
−6.220E−02

Coefficient (G)

Eighteenth
1.080E−03
2.245E−03
−1.755E−03
−1.356E−02
6.952E−03
6.690E−02
1.365E−01
4.116E−02

Coefficient (H)

Twentieth
−2.907E−04
−7.711E−04
5.517E−04
5.078E−03
−4.110E−03
−3.563E−02
−6.795E−02
−1.937E−02

Coefficient (J)

Twenty-Second
5.612E−05
1.867E−04
−1.215E−04
−1.346E−03
1.573E−03
1.298E−02
2.357E−02
6.388E−03

Coefficient (L)

Twenty-Fourth
−7.577E−06
−3.116E−05
1.810E−05
2.462E−04
−3.948E−04
−3.190E−03
−5.573E−03
−1.437E−03

Coefficient (M)

Twenty-Sixth
6.790E−07
3.413E−06
−1.706E−06
−2.949E−05
6.294E−05
5.058E−04
8.562E−04
2.097E−04

Coefficient (N)

Twenty-Eighth
−3.627E−08
−2.208E−07
8.869E−08
2.075E−06
−5.795E−06
−4.674E−05
−7.699E−05
−1.789E−05

Coefficient (O)

Thirtieth
8.736E−10
6.390E−09
−1.784E−09
−6.467E−08
2.350E−07
1.912E−06
3.074E−06
6.775E−07

Coefficient (P)

S9
S10
S11
S12
S13
S14
S15
S16

Conic
−9.900E+01
6.473E+01
7.447E+01
2.626E+01
1.741E+01
−4.928E+01
9.900E+01
9.900E+01

Constant (K)

Fourth
−2.383E−03
−5.362E−04
−2.674E−03
7.012E−02
8.340E−02
2.887E−02
1.091E−02
−1.156E−02

Coefficient (A)

Sixth
−2.116E−03
−7.637E−03
−3.542E−02
−2.009E−01
−2.390E−01
−1.324E−01
−8.305E−02
−1.123E−02

Coefficient (B)

Eighth
−7.853E−04
2.240E−02
5.939E−02
3.285E−01
4.036E−01
2.340E−01
1.429E−01
1.128E−02

Coefficient (C)

Tenth
−9.519E−04
−4.887E−02
−8.724E−02
−3.894E−01
−4.744E−01
−2.627E−01
−1.496E−01
−6.897E−03

Coefficient (D)

Twelfth
1.303E−02
7.229E−02
1.001E−01
3.340E−01
3.947E−01
2.023E−01
1.065E−01
2.785E−03

Coefficient (E)

Fourteenth
−2.633E−02
−7.520E−02
−8.921E−02
−2.099E−01
−2.366E−01
−1.112E−01
−5.392E−02
−6.461E−04

Coefficient (F)

Sixteenth
2.843E−02
5.595E−02
6.100E−02
9.797E−02
1.038E−01
4.458E−02
1.978E−02
1.358E−05

Coefficient (G)

Eighteenth
−1.970E−02
−3.008E−02
−3.162E−02
−3.414E−02
−3.362E−02
−1.318E−02
−5.309E−03
4.690E−05

Coefficient (H)

Twentieth
9.304E−03
1.170E−02
1.225E−02
8.846E−03
8.022E−03
2.873E−03
1.042E−03
−1.757E−05

Coefficient (J)

Twenty-Second
−3.040E−03
−3.257E−03
−3.481E−03
−1.677E−03
−1.392E−03
−4.569E−04
−1.480E−04
3.453E−06

Coefficient (L)

Twenty-Fourth
6.784E−04
6.327E−04