Imaging lens

Abstract

An imaging lens includes a first lens having positive refractive power; a second lens having negative refractive power; a third lens having negative refractive power; a fourth lens having negative refractive power; a fifth lens; a sixth lens; a seventh lens; an eighth lens; and a ninth lens having negative refractive power, arranged in this order from an object side to an image plane side. The ninth lens is formed in a shape so that a surface thereof on the image plane side has an aspherical shape having an inflection point.

Claims

1. An imaging lens comprising: a first lens having positive refractive power; a second lens having negative refractive power; a third lens having negative refractive power; a fourth lens having negative refractive power; a fifth lens; a sixth lens; a seventh lens; an eighth lens; and a ninth lens having negative refractive power, arranged in this order from an object side to an image plane side, wherein said second lens has a meniscus shape with a convex surface on the object side near an optical axis, said ninth lens is formed in a shape so that a surface thereof on the image plane side has an aspherical shape having an inflection point, and said ninth lens is formed in a shape so that a surface thereof on the image plane side has a said ninth lens is formed in a shape so that a surface thereof on the image plane side has a paraxial curvature radius R9r so that the following conditional expression is satisfied:
0.2<R9r/f<0.8, where f is a focal length of a whole lens system.

2. The imaging lens according to claim 1, wherein said first lens has a focal length f1 and said second lens has a focal length f2 so that the following conditional expression is satisfied:
−6<f2/f1<−1.

3. The imaging lens according to claim 1, wherein said second lens has a focal length f2 and said third lens has a focal length f3 so that the following conditional expression is satisfied:
4<f3/f2<12.

4. The imaging lens according to claim 1, wherein said ninth lens has a focal length f9 so that the following conditional expression is satisfied:
−3.5<f9/f<−0.2, where f is a focal length of a whole lens system.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a sectional view of a schematic configuration of an imaging lens in Numerical Data Example 1 of the present invention;

(2) FIG. 2 is an aberration diagram showing a lateral aberration of the imaging lens of FIG. 1;

(3) FIG. 3 is an aberration diagram showing a spherical aberration, astigmatism, and a distortion of the imaging lens of FIG. 1;

(4) FIG. 4 is a sectional view of a schematic configuration of an imaging lens in Numerical Data Example 2 of the present invention;

(5) FIG. 5 is an aberration diagram showing a lateral aberration of the imaging lens of FIG. 4;

(6) FIG. 6 is an aberration diagram showing a spherical aberration, astigmatism, and a distortion of the imaging lens of FIG. 4;

(7) FIG. 7 is a sectional view of a schematic configuration of an imaging lens in Numerical Data Example 3 of the present invention;

(8) FIG. 8 is an aberration diagram showing a lateral aberration of the imaging lens of FIG. 7;

(9) FIG. 9 is an aberration diagram showing a spherical aberration, astigmatism, and a distortion of the imaging lens of FIG. 7;

(10) FIG. 10 is a sectional view of a schematic configuration of an imaging lens in Numerical Data Example 4 of the present invention;

(11) FIG. 11 is an aberration diagram showing a lateral aberration of the imaging lens of FIG. 10;

(12) FIG. 12 is an aberration diagram showing a spherical aberration, astigmatism, and a distortion of the imaging lens of FIG. 10;

(13) FIG. 13 is a sectional view of a schematic configuration of an imaging lens in Numerical Data Example 5 of the present invention;

(14) FIG. 14 is an aberration diagram showing a lateral aberration of the imaging lens of FIG. 13;

(15) FIG. 15 is an aberration diagram showing a spherical aberration, astigmatism, and a distortion of the imaging lens of FIG. 13;

(16) FIG. 16 is a sectional view of a schematic configuration of an imaging lens in Numerical Data Example 6 of the present invention;

(17) FIG. 17 is an aberration diagram showing a lateral aberration of the imaging lens of FIG. 16;

(18) FIG. 18 is an aberration diagram showing a spherical aberration, astigmatism, and a distortion of the imaging lens of FIG. 16;

(19) FIG. 19 is a sectional view of a schematic configuration of an imaging lens in Numerical Data Example 7 of the present invention;

(20) FIG. 20 is an aberration diagram showing a lateral aberration of the imaging lens of FIG. 19;

(21) FIG. 21 is an aberration diagram showing a spherical aberration, astigmatism, and a distortion of the imaging lens of FIG. 19;

(22) FIG. 22 is a sectional view of a schematic configuration of an imaging lens in Numerical Data Example 8 of the present invention;

(23) FIG. 23 is an aberration diagram showing a lateral aberration of the imaging lens of FIG. 22;

(24) FIG. 24 is an aberration diagram showing a spherical aberration, astigmatism, and a distortion of the imaging lens of FIG. 22;

(25) FIG. 25 is a sectional view of a schematic configuration of an imaging lens in Numerical Data Example 9 of the present invention;

(26) FIG. 26 is an aberration diagram showing a lateral aberration of the imaging lens of FIG. 25;

(27) FIG. 27 is an aberration diagram showing a spherical aberration, astigmatism, and a distortion of the imaging lens of FIG. 25;

(28) FIG. 28 is a sectional view of a schematic configuration of an imaging lens in Numerical Data Example 10 of the present invention;

(29) FIG. 29 is an aberration diagram showing a lateral aberration of the imaging lens of FIG. 28; and

(30) FIG. 30 is an aberration diagram showing a spherical aberration, astigmatism, and a distortion of the imaging lens of FIG. 28.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

(31) Hereunder, referring to the accompanying drawings, an embodiment of the present invention will be fully described.

(32) FIGS. 1, 4, 7, 10, 13, 16, 19, 22, 25 and 28 are schematic sectional views of the imaging lenses in Numerical Data Examples 1 to 10 according to the embodiment, respectively. Since the imaging lenses in those Numerical Data Examples have the same basic configuration, the lens configuration of the embodiment will be described with reference to the sectional view of Numerical Data Example 1.

(33) As shown in FIG. 1, the imaging lens of the embodiment includes a first lens L1 having positive refractive power; a second lens L2 having negative refractive power; a third lens L3 having negative refractive power; a fourth lens L4 having negative refractive power; a fifth lens L5; a sixth lens L6; a seventh lens L7; an eighth lens L8; and a ninth lens having negative refractive power, arranged in the order from an object side to an image plane side. In addition, between the ninth lens L9 and an image plane IM of an imaging element, there is provided a filter 10. Here, the filter 10 is omissible.

(34) The first lens L1 is formed in a shape such that a paraxial curvature radius r1 of a surface thereof on the object-side and a paraxial curvature radius r2 of a surface thereof on the image plane side are both positive. The first lens L1 has a shape of a meniscus lens directing a convex surface thereof to the object side near the optical axis. The shape of the first lens L1 may not be limited to the one in Numerical Data Example 1. The first lens L1 can be formed in any shape as long as the refractive power thereof is positive. In addition to the shape in Numerical Data Example 1, the first lens L1 can be formed in a shape such that the paraxial curvature radius r1 and the paraxial curvature radius r2 are both negative, or such that the paraxial curvature radius r1 is positive and the paraxial curvature radius r2 is negative. In the former case, the first lens is formed to have a shape of a meniscus lens directing a concave surface thereof to the object side near the optical axis. In the latter case, the first lens is formed to have a shape of a biconvex lens near the optical axis. In view of downsizing the imaging lens, the first lens L1 may be preferably formed in a shape such that the paraxial curvature radius r1 is positive.

(35) According to Numerical Data Example 1, there is provided an aperture stop ST on the object-side surface of the first lens L1. Here, the position of the aperture stop ST may not be limited to the one in Numerical Data Example 1. The aperture stop ST can be provided closer to the object-side than the first lens L1. Alternatively, the aperture stop ST can be provided between the first lens L1 and the second lens L2; between the second lens L2 and the third lens L3; between the third lens L3 and the fourth lens L4; or the like.

(36) The second lens L2 is formed in a shape such that a paraxial curvature radius r3 of a surface thereof on the object-side and a paraxial curvature radius r4 of a surface thereof on the image plane side are both positive. The second lens L2 has a shape of a meniscus lens directing a convex surface thereof to the object side near the optical axis. The shape of the second lens L2 may not be limited to the one in Numerical Data Example 1. The second lens L2 can be formed in any shape as long as the refractive power thereof is negative. The second lens L2 can be formed in a shape such that the paraxial curvature radius r3 and the paraxial curvature radius r4 are both negative, or such that the paraxial curvature radius r3 is negative and the paraxial curvature radius r4 is positive. The first of the above-described shapes is a shape of a meniscus lens directing a concave surface thereof to the object side near the optical axis, and the latter one is a shape of a biconcave lens near the optical axis.

(37) The third lens L3 is formed in a shape such that a paraxial curvature radius r5 of a surface thereof on the object-side and a paraxial curvature radius r6 of a surface thereof on the image plane side are both positive. The third lens L3 has a shape of a meniscus lens directing a convex surface thereof to the object side near the optical axis. The shape of the third lens L3 may not be limited to the one in Numerical Data Example 1. The third lens L3 can be formed in any shape as long as the refractive power thereof is negative. For example, the third lens L3 can be formed in a shape such that the paraxial curvature radius r5 is negative and the paraxial curvature radius r6 is positive, so as to have a shape of a biconcave lens near the optical axis. Alternatively, the third lens L3 can be formed in a shape such that the both paraxial curvature radii r5 and r6 are negative, so as to have a shape of a meniscus lens directing the concave surface thereof to the object side near the optical axis.

(38) The fourth lens L4 is formed in a shape such that a paraxial curvature radius r7 of a surface thereof on the object-side and a paraxial curvature radius r8 of a surface thereof on the image plane side are both positive. The fourth lens L4 has a shape of a meniscus lens directing a convex surface thereof to the object side near the optical axis. The shape of the fourth lens L4 may not be limited to the one in Numerical Data Example 1. The Numerical Data Example 2 is an example of a shape, in which the paraxial curvature radius r7 is negative and the paraxial curvature radius r8 is positive, so as to have a shape of a biconcave lens near the optical axis. Other than the shapes described above, the fourth lens L4 can be formed in a shape such that the paraxial curvature radii r7 and r8 are both negative and so as to have a shape of a meniscus lens directing a concave surface thereof to the object side near an optical axis. The fourth lens L4 can be formed in any shape as long as the refractive power thereof is negative.

(39) The fifth lens L5 has positive refractive power. The refractive power of the fifth lens L5 is not limited to positive refractive power. Numerical Data Examples 7 through 10 are examples of lens configurations, in which the fifth lens L5 has negative refractive power.

(40) The fifth lens L5 is formed in a shape such that a paraxial curvature radius r9 of a surface thereof on the object-side is positive and a paraxial curvature radius r10 of a surface thereof on the image plane side is negative. The fifth lens L5 has a shape of a biconvex lens near the optical axis. The shape of the fifth lens L5 may not be limited to the one in Numerical Data Example 1. Numerical Data Examples 7 through 10 are examples of a shape, in which the paraxial curvature radii r9 and r10 are both positive, i.e., a shape of a meniscus lens directing a convex surface thereof to the object side near the optical axis. For example, the fifth lens L5 can be formed in a shape such that the paraxial curvature radius r9 and the paraxial curvature radius r10 are both negative, so as to have a shape of a meniscus lens directing a concave surface thereof to the object side near the optical axis. Alternatively, the fifth lens L5 can be formed in a shape such that the paraxial curvature radius r9 is negative and the paraxial curvature radius r10 is positive, so as to have a shape of a biconcave lens near the optical axis.

(41) The sixth lens L6 has positive refractive power. The refractive power of the sixth lens L6 is not limited to positive refractive power. Numerical Data Examples 4 through 6 are examples of lens configurations, in which the sixth lens L6 has negative refractive power.

(42) The sixth lens L6 is formed in a shape such that a paraxial curvature radius r11 of a surface thereof on the object-side and a paraxial curvature radius r12 of a surface thereof on the image plane side are both negative. The sixth lens L6 has a shape of a meniscus lens directing a concave surface thereof to the object side near the optical axis. The shape of the sixth lens L6 may not be limited to the one in Numerical Data Example 1. The Numerical Data Examples 2 and 7 through 10 are examples of shapes, in which the paraxial curvature radius r11 is positive and the paraxial curvature radius r12 is negative, so as to have a shape of a biconvex lens near the optical axis. Numerical Data Example 4 is an example of a shape, in which the paraxial curvature radii r11 and r12 are both positive, i.e., a shape of a meniscus lens directing a convex surface thereof to the object side near the optical axis. The Numerical Data Example 6 is an example of a shape, in which the paraxial curvature radius r11 is negative and the paraxial curvature radius r12 is positive, so as to have a shape of a biconcave lens near the optical axis.

(43) The seventh lens L7 has positive refractive power. The refractive power of the seventh lens L7 is not limited to positive refractive power. Numerical Data Examples 2, 3, 6, 9 and 10 are examples of lens configurations, in which the seventh lens L7 has negative refractive power.

(44) The seventh lens L7 is formed in a shape such that a paraxial curvature radius r13 (=R7f) of a surface thereof on the object-side and a paraxial curvature radius r14 (=R7r) of a surface thereof on the image plane side are both negative. The seventh lens L7 has a shape of a meniscus lens directing a concave surface thereof to the object side near the optical axis. In addition, according to the imaging lens of the embodiment, the seventh lens L7 is formed in a shape such that an object-side surface thereof directs a concave surface thereof to the object side at the periphery of the lens and has a shape such that an image plane-side surface thereof directs a convex surface thereof to the image plane side at the periphery of the lens. With such shape of the seventh lens L7, it is achievable to suitably restrain the incident angle of a light beam emitted from the imaging lens to the image plane IM within the range of CRA, while satisfactorily correcting the chromatic aberration of magnification and the field curvature. Here, the shape of the seventh lens L7 may not be limited to the one in Numerical Data Example 1. Alternatively, the seventh lens L7 can be formed in a shape such that the paraxial curvature radius r13 is positive and the paraxial curvature radius r14 is negative, so as to have a shape of a biconvex lens near the optical axis. In addition, the seventh lens L7 can be also formed in a shape such that the paraxial curvature radii r13 and r14 are both positive, so as to have a shape of a meniscus lens directing a convex surface thereof to the object side near an optical axis. Other than the shapes described above, the seventh lens L7 can be formed in a shape such that the paraxial curvature radius r13 is negative and the paraxial curvature radius r14 is positive, so as to have a shape of a biconcave lens near the optical axis.

(45) The eighth lens L8 has negative refractive power. The refractive power of the eighth lens L8 is not limited to negative refractive power. Numerical Data Examples 2, 4, 6, 7 and 9 are examples of lens configurations, in which the eighth lens L8 has positive refractive power.

(46) The eighth lens L8 is formed in a shape such that a paraxial curvature radius r15 (=R8f) of a surface thereof on the object-side and a paraxial curvature radius r16 (=R8r) of a surface thereof on the image plane side are both positive. The eighth lens L8 has a shape of a meniscus lens directing a convex surface thereof to the object side near the optical axis. In addition, according to the imaging lens of the invention, the eighth lens L8 is formed in a shape, such that an object-side surface thereof directs its concave surface to the object side at the periphery of the lens, and such that an image plane-side surface thereof directs its convex surface to the image plane side at the periphery of the lens. Both surfaces of the eighth lens L8 are formed as aspheric shapes having inflection points. Accordingly, the eighth lens L8 of the embodiment has a shape of a meniscus lens directing the convex surface thereof to the object side near the optical axis, and has a shape of a meniscus lens directing a concave surface thereof to the object side at the periphery of the lens. With such shape of the eighth lens L8, it is achievable to suitably restrain the incident angle of a light beam emitted from the imaging lens to the image plane IM within the range of CRA, while satisfactorily correcting the chromatic aberration of magnification and the field curvature. The shape of the eighth lens L8 may not be limited to the one in Numerical Data Example 1. For example, the eighth lens L8 can be formed in a shape such that the paraxial curvature radii r15 and r16 are both negative, so as to have a shape of a meniscus lens directing a concave surface thereof to the object side near an optical axis. In addition to the shapes described above, the eighth lens L8 can be formed in a shape such that the paraxial curvature radius r15 is positive and the paraxial curvature radius r16 is negative, or such that the paraxial curvature radius r15 is negative and the paraxial curvature radius r16 is positive.

(47) The ninth lens L9 is formed in a shape such that a paraxial curvature radius r17 of a surface thereof on the object-side and a paraxial curvature radius r18 (=R9r) of a surface thereof on the image plane side are both positive. The ninth lens L9 has a shape of a meniscus lens directing a convex surface thereof to the object side near the optical axis. The shape of the ninth lens L9 may not be limited to the one in Numerical Data Example 1. The Numerical Data Examples 2, 7 and 9 are examples of a shape, in which the paraxial curvature radius r17 is negative and the paraxial curvature radius r18 is positive, so as to have a shape of a biconcave lens near the optical axis. In addition to the shapes described above, the ninth lens L9 can be formed in a shape such that the paraxial curvature radii r17 and r18 are both negative. The ninth lens L9 can be formed in any shape as long as the refractive power thereof is negative.

(48) Furthermore, the image plane-side surface of the ninth lens L9 is formed as an aspheric shape having an inflection point. Here, the “inflection point” means a point where the positive/negative sign of a curvature radius changes on the curve, i.e., a point where a direction of curving of the curve on the lens surface changes. According to the imaging lens of the embodiment, the image plane-side surface of the ninth lens L9 is formed as an aspheric shape having a pole. With such shape of the ninth lens L9, it is achievable to satisfactorily correct an off-axis chromatic aberration of magnification as well as an axial chromatic aberration, and to suitably restrain the incident angle of a light beam emitted from the imaging lens to the image plane IM within the range of CRA. According to the imaging lens of Numerical Data Example 1, the both surfaces of the eighth lens L8 and the ninth lens L9 are formed as aspheric shapes having inflection points. Therefore, it is achievable to more satisfactorily correct aberrations at the periphery of an image, while restraining an incident angle of a light beam emitted from the imaging lens to the image plane within the range of CRA. Here, depending on the required optical performance and downsizing of the imaging lens, among lens surfaces of the eighth lens L8 and the ninth lens L9, lens surfaces other than the image plane-side surface of the ninth lens L9 can be formed as aspheric shapes without inflection points or spherical surfaces.

(49) According to the embodiment, the imaging lens satisfies the following conditional expressions (1) through (23) and (26):
0<f123  (1)
0<f456  (2)
f789<0  (3)
0.2<f1/f<2.0  (4)
0.4<f1/f<2.0  (4a)
0.4<f1/f<1.6  (4b)
−6<f2/f1<−1  (5)
0.5<f12/f<2.5  (6)
0.7<f12/f<2.1  (6a)
4<f3/f2<12  (7)
−6.0<f23/f<−0.5  (8)
−4<f23/f<−1  (8a)
−12<f34/f<−4  (9)
−10<f34/f<−5  (9a)
0.03<D34/f<0.10  (10)
0.5<f56/f<8.0  (11)
1.0<f56/f<6.0  (11a)
0.2<R7f/R7r<3.0  (12)
0.2<R8f/R8r<3.0  (13)
0.5<T8/T7<4.0  (14)
0.02<D89/f<0.15  (15)
−5.0<f89/f<−0.1  (16)
0.2<R9r/f<0.8  (17)
−3.5<f9/f<−0.2  (18)
35<νd1<75  (19)
15<νd2<35  (20)
35<νd9<75  (21)
1.0<TL/f<1.4  (22)
1.0<TL/Hmax<1.8  (23)
f/Dep<2.4  (26)
In the above conditional expression,
f: Focal length of the whole lens system
f1: Focal length of the first lens L1
f2: Focal length of the second lens L2
f3: Focal length of the third lens L3
f9: Focal length of the ninth lens L9
f12: Composite focal length of the first lens L1 and the second lens L2
f23: Composite focal length of the second lens L2 and the third lens L3
f34: Composite focal length of a third lens L3 and a fourth lens L4.
f56: Composite focal length of the fifth lens L5 and the sixth lens L6
f89: Composite focal length of the eighth lens L8 and the ninth lens L9
f123: Composite focal length of the first lens L1, the second lens L2 and the third lens L3
f456: Composite focal length of the fourth lens L4, the fifth lens L5 and the sixth lens L6
f789: Composite focal length of the seventh lens L7, the eighth lens L8 and the ninth lens L9
T7: Thickness of the seventh lens L7 on an optical axis
T8: Thickness of the eighth lens L8 on an optical axis
νd1: Abbe's number of the first lens L1
νd2: Abbe's number of the second lens L2
νd9: Abbe's number of the ninth lens L9
R7f: Paraxial curvature radius of an object-side surface of the seventh lens L7
R7r: Paraxial curvature radius of an image plane-side surface of the seventh lens L7
R8f: Paraxial curvature radius of an object-side surface of the eighth lens L8
R8r: Paraxial curvature radius of an image plane-side surface of the eighth lens L8
R9r: Paraxial curvature radius of an image plane-side surface of the ninth lens L9
D34: Distance on the optical axis X between the third lens L3 and the fourth lens L4
D89: Distance on the optical axis X between the eighth lens L8 and the ninth lens L9
Hmax: Maximum image height
TL: Distance on an optical axis X from the object-side surface of the first lens L1 to the image plane IM (the filter 10 is a distance in the air)
Dep: Diameter of entrance pupil

(50) When the fifth lens L5 has positive refractive power as in the lens configurations of Numerical Data Examples 1 through 6, the imaging lens further satisfies the following conditional expression (24) and (24a):
1<f5/f<15  (24)
1<f5/f<13  (24a)

(51) In the above conditional expression,

(52) f5: Focal length of the fifth lens L5

(53) When the sixth lens L6 has positive refractive power as in the lens configurations of Numerical Data Examples 1 through 3 and 7 through 10, the imaging lens further satisfies the following conditional expression (25) and (25a):
1<f6/f<10  (25)
1<f6/f<8  (25a)

(54) In the above conditional expression,

(55) f6: Focal length of the sixth lens L6

(56) Here, it is not necessary to satisfy all of the conditional expressions, and it is achievable to obtain an effect corresponding to the respective conditional expression when any single one of the conditional expressions is individually satisfied.

(57) According to the embodiment, lens surfaces of the respective lenses are formed as aspheric surfaces. An equation that expresses those aspheric surfaces is shown below:

(58) $\begin{array}{cc}Z=\frac{C.Math.H^2}{1+\sqrt{1-\left(1+k\right).Math.C^2.Math.H^2}}+.Math.\left(\mathrm{An}.Math.H^n\right)& \left[\mathrm{Equation}1\right]\end{array}$

(59) In the above conditional expression,

(60) Z: Distance in a direction of the optical axis

(61) H: Distance from the optical axis in a direction perpendicular to the optical axis

(62) C: Paraxial curvature (=1/r, r: paraxial curvature radius)

(63) k: Conic constant

(64) An: The nth aspheric coefficient

(65) Next, Numerical Data Examples of the imaging lens of the embodiment will be described. In each Numerical Data Example, f represents a focal length of the whole lens system, Fno represents an F-number, and ω represents a half angle of view, respectively. In addition, i represents a surface number counted from the object side, r represents a paraxial curvature radius, d represents a distance on the optical axis between lens surfaces (surface spacing), nd represents a refractive index at a reference wavelength of 588 nm, and νd represents an Abbe's number at the reference wavelength, respectively. Here, surfaces indicated with surface numbers i affixed with * (asterisk) are aspheric surfaces.

Numerical Data Example 1

(66) Basic Lens Data

(67) TABLE-US-00001 TABLE 1 f = 5.95 mm Fno = 2.0 ω = 38.3° i r d n d ν d [mm] ∞ ∞ L1 1*(ST) 2.532 0.863 1.5443 55.9 f1 = 5.017  2* 30.618 0.056 L2  3* 5.410 0.295 1.6707 19.2 f2 = −12.569  4* 3.223 0.188 L3  5* 4.712 0.257 1.6707 19.2 f3 = −100.747  6* 4.308 0.369 L4  7* 27.584 0.309 1.5443 55.9 f4 = −96.621  8* 18.022 0.045 L5  9* 24.603 0.424 1.5443 55.9 f5 = 17.378 10* −15.273 0.462 L6 11* −25.919 0.415 1.5443 55.9 f6 = 23.661 12* −8.652 0.087 L7 13* −3.115 0.252 1.6707 19.2 f7 = 58.814 14* −2.981 0.035 L8 15* 6.408 0.485 1.5443 55.9 f8 = −102.382 16* 5.594 0.461 L9 17* 12.450 1.173 1.5443 55.9 f9 = −6.657 18* 2.714 0.250 19  ∞ 0.210 1.5168 64.2 20  ∞ 0.598 (IM) ∞
f12=7.270 mm
f23=−10.950 mm
f34=−49.636 mm
f56=10.261 mm
f89=−6.324 mm
f123=7.518 mm
f456=11.447 mm
f789=−7.094 mm
D34=0.369 mm
D89=0.461 mm
T7=0.252 mm
T8=0.485 mm
TL=7.164 mm
f123=4.71 mm
T8=3.005 mm

(68) TABLE-US-00002 TABLE 2 Aspherical surface data i k A4 A6 A8 A10 A12 A14 A16 1 2.051E−01 −1.050E−03 −6.103E−04  5.722E−04 −5.792E−04  1.961E−04 −1.425E−05  −8.531E−06 2 0.000E+00 −1.804E−02  2.223E−02 −1.431E−02 4.937E−03 −7.503E−04  −4.181E−05   1.581E−05 3 −1.693E+01  −2.269E−02  2.359E−02 −1.348E−02 4.925E−03 −9.316E−04  1.795E−04 −3.256E−05 4 −1.131E+01   2.194E−02 −1.451E−02  1.141E−02 −5.387E−03  2.170E−03 −3.509E−04   1.539E−04 5 0.000E+00 −5.385E−03 −2.306E−03  7.087E−04 4.726E−04 1.754E−04 1.335E−04 −1.262E−06 6 0.000E+00 −6.002E−03  5.102E−04  9.550E−04 4.312E−04 1.754E−04 3.577E−05 −2.231E−05 7 0.000E+00 −1.800E−02 −1.104E−02  3.060E−04 −1.236E−04  4.206E−04 1.427E−04 −1.613E−05 8 0.000E+00 −1.114E−02 −1.188E−02 −1.197E−03 2.791E−04 2.023E−04 8.890E−05 −6.967E−05 9 0.000E+00 −1.748E−02 −2.532E−03  1.605E−03 1.276E−04 6.028E−05 6.253E−07 −2.855E−05 10 0.000E+00 −3.805E−02  1.135E−05  1.456E−03 4.974E−04 5.227E−05 −4.451E−05  −1.735E−07 11 0.000E+00 −4.647E−02 −8.387E−04 −2.332E−03 1.905E−05 3.036E−04 3.389E−05 −1.912E−05 12 0.000E+00 −5.786E−02  1.052E−02 −2.298E−03 −1.310E−03  1.129E−03 −2.674E−04   2.130E−05 13 7.198E−01 −1.054E−02  2.108E−02 −1.223E−02 4.153E−03 −6.812E−04  2.921E−05  2.371E−06 14 −2.852E+00  −1.540E−02  1.585E−02 −8.529E−03 2.351E−03 −3.055E−04  1.683E−05 −4.687E−07 15 0.000E+00 −2.063E−02 −1.792E−04 −1.211E−03 3.083E−04 −5.714E−05  5.461E−06 −3.046E−07 16 0.000E+00 −1.390E−02 −1.982E−04 −5.116E−04 1.114E−04 −8.248E−06  −3.281E−08   2.512E−08 17 0.000E+00 −7.033E−02  1.519E−02 −1.783E−03 1.448E−04 −8.452E−06  3.143E−07 −5.414E−09 18 −3.287E+00  −4.682E−02  1.150E−02 −2.088E−03 2.373E−04 −1.594E−05  5.789E−07 −8.730E−09

(69) The values of the respective conditional expressions are as follows:

(70) f1/f=0.84

(71) f2/f1=−2.51

(72) f12/f=1.22

(73) f3/f2=8.02

(74) f23/f=−1.84

(75) f34/f=−8.34

(76) D34/f=0.06

(77) f56/f=1.72

(78) R7f/R7r=1.05

(79) R8f/R8r=1.15

(80) T8/T7=1.92

(81) D89/f=0.08

(82) f89/f=−1.06

(83) R9r/f=0.46

(84) f9/f=−1.12

(85) TL/f=1.20

(86) TL/Hmax=1.52

(87) f/Dep=1.98

(88) f5/f=2.92

(89) f6/f=3.98

(90) Accordingly, the imaging lens of Numerical Data Example 1 satisfies the above-described conditional expressions.

(91) FIG. 2 shows a lateral aberration that corresponds to ratios H of the respective image heights to the maximum image height Hmax (hereinafter referred to as “image height ratio H”), which is divided into a tangential direction and a sagittal direction (The same is true for FIGS. 5, 8, 11, 14, 17, 20, 23, 26 and 29). FIG. 3 shows a spherical aberration (mm), astigmatism (mm), and a distortion (%), respectively. The aberration diagrams of the astigmatism and the distortion show aberrations at the reference wavelength (588 nm). Furthermore, in the aberration diagrams of the astigmatism shows sagittal image planes (S) and tangential image planes (T), respectively (The same is true for FIGS. 6, 9, 12, 15, 18, 21, 24, 27 and 30). As shown in FIGS. 2 and 3, according to the imaging lens of Numerical Data Example 1, the aberrations can be satisfactorily corrected.

Numerical Data Example 2

(92) Basic Lens Data

(93) TABLE-US-00003 TABLE 3 f = 5.70 mm Fno = 2.0 ω = 39.6° i r d n d ν d [mm] ∞ ∞ L1 1*(ST) 2.540 0.694 1.5443 55.9 f1 = 5.197  2* 22.503 0.060 L2  3* 4.894 0.306 1.6707 19.2 f2 = −14.220  4* 3.153 0.263 L3  5* 8.006 0.250 1.6707 19.2 f3 = −100.875  6* 7.069 0.308 L4  7* −819.354 0.371 1.5443 55.9 f4 = −100.340  8* 58.524 0.026 L5  9* 45.287 0.366 1.5443 55.9 f5 = 56.770 10* −96.990 0.326 L6 11* 13.273 0.489 1.5443 55.9 f6 = 11.875 12* −12.435 0.344 L7 13* −2.850 0.266 1.6707 19.2 f7 = −101.863 14* −3.085 0.075 L8 15* 4.502 0.554 1.5443 55.9 f8 = 15.488 16* 9.241 0.586 L9 17* −49.535 0.870 1.5443 55.9 f9 = −4.708 18* 2.719 0.250 19  ∞ 0.210 1.5168 64.2 20  ∞ 0.494 (IM) ∞
f12=7.289 mm
f23=−12.320 mm
f34=−50.487 mm
f56=9.915 mm
f89=−8.110 mm
f123=7.621 mm
f456=10.922 mm
f789=−7.084 mm
D34=0.308 mm
D89=0.586 mm
T7=0.266 mm
T8=0.554 mm
TL=7.037 mm
Hmax=4.71 mm
Dep=2.877 mm

(94) TABLE-US-00004 TABLE 4 Aspherical surface data i k A4 A6 A8 A10 A12 A14 A16 1 2.750E−01  3.245E−04 −2.523E−04  6.200E−04 −5.383E−04  2.183E−04 −1.178E−05  −1.340E−05 2 0.000E+00 −1.760E−02  2.260E−02 −1.420E−02 4.934E−03 −7.596E−04  −4.397E−05   1.937E−05 3 −1.758E+01  −2.228E−02  2.352E−02 −1.366E−02 4.927E−03 −9.068E−04  1.843E−04 −2.711E−05 4 −1.175E+01   2.047E−02 −1.418E−02  1.189E−02 −5.511E−03  1.960E−03 −3.852E−04   2.210E−04 5 0.000E+00 −5.405E−03 −1.796E−03  2.731E−04 2.171E−04 9.372E−05 1.104E−04  1.141E−05 6 0.000E+00 −3.920E−03 −3.133E−04  4.448E−04 2.185E−04 8.921E−05 1.610E−05 −8.973E−06 7 0.000E+00 −2.066E−02 −1.048E−02 −1.537E−04 −5.020E−04  2.925E−04 1.389E−04  4.089E−06 8 0.000E+00 −7.810E−03 −1.217E−02 −1.516E−03 2.051E−04 1.892E−04 8.015E−05 −7.353E−05 9 0.000E+00 −1.612E−02 −2.761E−03  1.543E−03 8.079E−05 4.785E−05 2.316E−06 −2.520E−05 10 0.000E+00 −4.538E−02  3.551E−04  1.559E−03 4.931E−04 5.556E−05 −3.749E−05   5.005E−06 11 0.000E+00 −4.095E−02 −1.817E−04 −2.530E−03 4.546E−06 3.190E−04 4.156E−05 −1.696E−05 12 0.000E+00 −5.205E−02  1.027E−02 −2.148E−03 −1.283E−03  1.130E−03 −2.680E−04   2.130E−05 13 6.302E−01 −1.011E−02  2.162E−02 −1.219E−02 4.163E−03 −6.792E−04  2.930E−05  2.256E−06 14 −4.147E+00  −1.798E−02  1.536E−02 −8.551E−03 2.351E−03 −3.049E−04  1.707E−05 −4.111E−07 15 0.000E+00 −2.095E−02  1.608E−04 −1.258E−03 3.239E−04 −5.522E−05  5.525E−06 −2.425E−07 16 0.000E+00 −5.255E−03 −9.330E−04 −5.384E−04 1.130E−04 −7.993E−06  −1.924E−08   2.525E−08 17 0.000E+00 −6.868E−02  1.528E−02 −1.782E−03 1.446E−04 −8.473E−06  3.133E−07 −5.377E−09 18 −4.573E+00  −4.428E−02  1.154E−02 −2.092E−03 2.371E−04 −1.594E−05  5.789E−07 −8.720E−09

(95) The values of the respective conditional expressions are as follows:

(96) f1/f=0.91

(97) f2/f1=−2.74

(98) f12/f=1.28

(99) f3/f2=7.09

(100) f23/f=−2.16

(101) f34/f=−8.86

(102) D34/f=0.05

(103) f56/f=1.74

(104) R7f/R7r=0.92

(105) R8f/R8r=0.49

(106) T8/T7=2.09

(107) D89/f=0.10

(108) f89/f=−1.42

(109) R9r/f=0.48

(110) f9/f=−0.83

(111) TL/f=1.24

(112) TL/Hmax=1.50

(113) f/Dep=1.98

(114) f5/f=9.96

(115) f6/f=2.08

(116) Accordingly, the imaging lens of Numerical Data Example 2 satisfies the above-described conditional expressions.

(117) FIG. 5 shows a lateral aberration that corresponds to an image height H and FIG. 6 shows a spherical aberration (mm), astigmatism (mm), and a distortion (%), respectively. As shown in FIGS. 5 and 6, according to the imaging lens of Numerical Data Example 2, the aberrations can be also satisfactorily corrected.

Numerical Data Example 3

(118) Basic Lens Data

(119) TABLE-US-00005 TABLE 5 f = 5.98 mm Fno = 2.0 ω = 38.2° i r d n d ν d [mm] ∞ ∞ L1 1*(ST) 2.527 0.853 1.5443 55.9 f1 = 4.991  2* 31.864 0.055 L2  3* 5.425 0.290 1.6707 19.2 f2 = −12.418  4* 3.215 0.188 L3  5* 4.674 0.298 1.6707 19.2 f3 = −100.687  6* 4.260 0.362 L4  7* 24.516 0.300 1.5443 55.9 f4 = −84.446  8* 15.919 0.045 L5  9* 21.718 0.429 1.5443 55.9 f5 = 16.818 10* −15.714 0.450 L6 11* −29.243 0.404 1.5443 55.9 f6 = 17.013 12* −7.067 0.104 L7 13* −2.973 0.255 1.6707 19.2 f7 = −100.820 14* −3.217 0.030 L8 15* 6.291 0.466 1.5443 55.9 f8 = −100.281 16* 5.494 0.434 L9 17* 10.960 1.257 1.5443 55.9 f9 = −7.132 18* 2.751 0.250 19  ∞ 0.210 1.5168 64.2 20  ∞ 0.579 (IM) ∞
f12=7.270 mm
f23=−10.792 mm
f34=−46.342 mm
f56=8.691 mm
f89=−6.723 mm
f123=7.487 mm
f456=9.649 mm
f789=−5.995 mm
D34=0.362 mm
D89=0.434 mm
T7=0.255 mm
T8=0.466 mm
TL=7.188 mm
Hmax=4.71 mm
Dep=3.021 mm

(120) TABLE-US-00006 TABLE 6 Aspherical surface data i k A4 A6 A8 A10 A12 A14 A16 1  2.024E−01 −1.124E−03 −6.259E−04  5.799E−04 −5.787E−04  1.951E−04 −1.464E−05 −8.482E−06 2  0.000E+00 −1.802E−02  2.223E−02 −1.432E−02  4.934E−03 −7.504E−04 −4.123E−05  1.640E−05 3 −1.676E+01 −2.273E−02  2.355E−02  1.349E−02  4.914E−03 −9.355E−04  1.805E−04 −3.055E−05 4 −1.122E+01  2.208E−02 −1.451E−02  1.141E−02 −5.357E−03  2.190E−03 −3.521E−04  1.426E−04 5  0.000E+00 −5.414E−03 −2.276E−03  7.755E−04  4.953E−04  1.747E−04  1.281E−04 −6.580E−06 6  0.000E+00 −6.170E−03  4.930E−04  9.139E−04  4.079E−04  1.671E−04  3.475E−05 −1.998E−05 7  0.000E+00 −1.775E−02 −1.099E−02  2.962E−04 −1.418E−04  4.126E−04  1.424E−04 −1.401E−05 8  0.000E+00 −1.130E−02 −1.182E−02 −1.195E−03  2.736E−04  2.007E−04  8.922E−05 −6.928E−05 9  0.000E+00 −1.723E−02 −2.532E−03  1.616E−03  1.314E−04  6.012E−05  9.589E−08 −2.856E−05 10  0.000E+00 −3.829E−02  1.639E−04  1.458E−03  4.912E−04  5.082E−05 −4.442E−05  4.233E−08 11  0.000E+00 −4.801E−02 −1.172E−03 −2.328E−03  2.542E−05  3.042E−04  3.364E−05 −1.927E−05 12  0.000E+00 −5.494E−02  1.056E−02 −2.338E−03 −1.316E−03  1.129E−03 −2.674E−04  2.131E−05 13  6.882E−01 −8.955E−03  2.121E−02 −1.222E−02  4.151E−03 −6.820E−04  2.905E−05  2.341E−06 14 −2.167E+00 −1.624E−02  1.587E−02 −8.514E−03  2.354E−03 −3.053E−04  1.678E−05 −5.002E−07 15  0.000E+00 −2.183E−02  5.785E−05 −1.222E−03  2.983E−04 −5.775E−05  5.619E−06 −2.678E−07 16  0.000E+00 −1.442E−02 −2.617E−04 −5.101E−04  1.115E−04 −8.229E−06 −3.029E−08  2.531E−08 17  0.000E+00 −7.061E−02  1.518E−02 −1.783E−03  1.449E−04 −8.450E−06  3.143E−07 −5.433E−09 18 −2.942E+00 −4.686E−02  1.150E−02 −2.089E−03  2.372E−04 −1.594E−05  5.789E−07 −8.723E−09

(121) The values of the respective conditional expressions are as follows:

(122) f1/f=0.83

(123) f2/f1=−2.49

(124) f12/f=1.22

(125) f3/f2=8.11

(126) f23/f=−1.80

(127) f34/f=−7.75

(128) D34/f=0.06

(129) f56/f=1.45

(130) R7f/R7r=0.92

(131) R8f/R8r=1.15

(132) T8/T7=1.83

(133) D89/f=0.07

(134) f89/f=−1.12

(135) R9r/f=0.46

(136) f9/f=−1.19

(137) TL/f=1.20

(138) TL/Hmax=1.53

(139) f/Dep=1.98

(140) f5/f=2.81

(141) f6/f=2.84

(142) Accordingly, the imaging lens of Numerical Data Example 3 satisfies the above-described conditional expressions.

(143) FIG. 8 shows a lateral aberration that corresponds to an image height H and FIG. 9 shows a spherical aberration (mm), astigmatism (mm), and a distortion (%), respectively. As shown in FIGS. 8 and 9, according to the imaging lens of Numerical Data Example 3, the aberrations can be also satisfactorily corrected.

Numerical Data Example 4

(144) Basic Lens Data

(145) TABLE-US-00007 TABLE 7 f = 5.86 mm Fno = 2.0 ω = 38.8° i r ∞ d ∞ n d ν d [mm] L1    1* (ST) 2.530 0.805 1.5443 55.9 f1 = 5.027    2* 29.731 0.061 L2  3 5.151 0.312 1.6707 19.2 f2 = −13.023   4* 3.161 0.219 L3  5* 5.393 0.250 1.6707 19.2 f3 = −100.770  6* 4.902 0.365 L4  7* 189.535 0.300 1.5443 55.9 f4 = −100.320  8* 42.368 0.030 L5  9* 29.132 0.379 1.5443 55.9 f5 = 21.364   10* −19.264 0.390 L6  11* 1271.897 0.396 1.5443 55.9 f6 = −100.377  12* 52.379 0.165 L7  13* −3.059 0.250 1.6707 19.2 f7 = 102.379   14* −3.025 0.030 L8  15* 4.354 0.743 1.5443 55.9 f8 = 12.102   16* 12.072 0.678 L9  17* 128.811 0.912 1.5443 55.9 f9 = −5.249   18* 2.788 0.250 19 ∞ 0.210 1.5168 64.2 20 ∞ 0.453 (IM) ∞
f12=7.166 mm
f23=−11.337 mm
f34=−50.589 mm
f56=26.883 mm
f89=−13.117 mm
f123=7.429 mm
f456=36.764 mm
f789=−15.290 mm
D34=0.365 mm
D89=0.678 mm
T7=0.250 mm
T8=0.743 mm
TL=7.127 mm
Hmax=4.71 mm
Dep=2.960 mm

(146) TABLE-US-00008 TABLE 8 Aspherical surface data i k A4 A6 A8 A10 A12 A14 A16 1  2.299E−01 −5.350E−04 −4.865E−04  5.749E−04 −5.696E−04  2.032E−04 −1.314E−05 −1.000E−05 2  0.000E+00 −1.785E−02  2.237E−02 −1.427E−02  4.936E−03 −7.523E−04 −4.166E−05  1.660E−05 3 −1.792E+01 −2.272E−02  2.356E−02 −1.354E−02  4.909E−03 −9.390E−04  1.763E−04 −2.667E−05 4 −1.153E+01  2.111E−02 −1.450E−02  1.157E−02 −5.459E−03  2.056E−03 −3.866E−04  1.785E−04 5  0.000E+00 −5.403E−03 −1.935E−03  5.235E−04  3.578E−04  1.499E−04  1.314E−04  1.280E−06 6  0.000E+00 −4.776E−03  1.015E−04  7.581E−04  3.820E−04  1.756E−04  4.287E−05 −2.284E−05 7  0.000E+00 −1.771E−02 −1.118E−02  2.232E−04 −1.347E−04  4.180E−04  1.340E−04 −2.559E−05 8  0.000E+00 −1.104E−02 −1.233E−02 −1.194E−03  3.061E−04  1.997E−04  7.777E−05 −7.699E−05 9  0.000E+00 −1.828E−02 −2.536E−03  1.514E−03  8.935E−05  5.248E−05 −8.422E−07 −3.091E−05 10  0.000E+00 −3.625E−02 −1.797E−04  1.458E−03  5.126E−04  5.902E−05 −4.202E−05  9.584E−07 11  0.000E+00 −4.428E−02 −7.922E−04 −2.418E−03  2.473E−05  3.136E−04  3.741E−06 −1.846E−05 12  0.000E+00 −6.702E−02  1.023E−02 −2.176E−03 −1.304E−03  1.125E−03 −2.689E−04  2.112E−05 13  6.583E−01 −8.447E−03  2.114E−02 −1.227E−02  4.156E−03 −6.794E−04  2.950E−05  2.383E−06 14 −3.274E+00 −1.553E−02  1.593E−02 −8.507E−03  2.349E−03 −3.061E−04  1.683E−05 −4.356E−07 15  0.000E+00 −2.671E−02  7.579E−04 −1.326E−03  3.198E−04 −5.320E−05  5.566E−06 −3.865E−07 16  0.000E+00 −5.475E−03 −7.551E−04 −5.181E−04  1.134E−04 −8.081E−06 −3.427E−08  2.339E−08 17  0.000E+00 −6.991E−02  1.524E−02 −1.781E−03  1.448E−04 −8.457E−06  3.139E−07 −5.420E−09 18 −4.507E+00 −4.529E−02  1.155E−02 −2.091E−03  2.370E−04 −1.594E−05  5.790E−07 −8.706E−09

(147) The values of the respective conditional expressions are as follows:

(148) f1/f=0.86

(149) f2/f1=−2.59

(150) f12/f=1.22

(151) f3/f2=7.74

(152) f23/f=−1.93

(153) f34/f=−8.63

(154) D34/f=0.06

(155) f56/f=4.59

(156) R7f/R7r=1.01

(157) R8f/R8r=0.36

(158) T8/T7=2.97

(159) D89/f=0.12

(160) f89/f=−2.24

(161) R9r/f=0.48

(162) f9/f=−0.90

(163) TL/f=1.22

(164) TL/Hmax=1.51

(165) f/Dep=1.98

(166) f5/f=3.65

(167) Accordingly, the imaging lens of Numerical Data Example 4 satisfies the above-described conditional expressions.

(168) FIG. 11 shows a lateral aberration that corresponds to an image height H and FIG. 12 shows a spherical aberration (mm), astigmatism (mm), and a distortion (%), respectively. As shown in FIGS. 11 and 12, according to the imaging lens of Numerical Data Example 4, the aberrations can be also satisfactorily corrected.

Numerical Data Example 5

(169) Basic Lens Data

(170) TABLE-US-00009 TABLE 9 f = 6.03 mm Fno = 2.0 ω = 38.0° i r ∞ d ∞ n d ν d [mm] L1    1*(ST) 2.494 0.903 1.5443 55.9 f1 = 4.888    2* 34.778 0.060 L2  3 5.344 0.267 1.6707 19.2 f2 = −12.092   4* 3.157 0.175 L3  5* 4.219 0.250 1.6707 19.2 f3 = −100.708  6* 3.876 0.365 L4  7* 20.760 0.320 1.5443 55.9 f4 = −100.502  8* 14.967 0.047 L5  9* 31.815 0.454 1.5443 55.9 f5 = 13.206   10* −9.239 0.444 L6  11* −9.205 0.402 1.5443 55.9 f6 = −100.348  12* −11.242 0.083 L7  13* −3.485 0.274 1.6707 19.2 f7 = 28.766   14* −3.045 0.030 L8  15* 5.979 0.522 1.5443 55.9 f8 = −100.292  16* 5.223 0.439 L9  17* 10.189 1.098 1.5443 55.9 f9 = −7.353   18* 2.764 0.250 19 ∞ 0.210 1.5168 64.2 20 ∞ 0.635 (IM) ∞
f12=7.123 mm
f23=−10.558 mm
f34=−50.623 mm
f56=15.340 mm
f89=−6.955 mm
f123=7.341 mm
f456=18.136 mm
f789=−9.672 mm
D34=0.365 mm
D89=0.439 mm
T7=0.274 mm
T8=0.522 mm
TL=7.155 mm
Hmax=4.71 mm
Dep=3.044 mm

(171) TABLE-US-00010 TABLE 10 Aspherical surface data i k A4 A6 A8 A10 A12 A14 A16 1  1.818E−01 −1.545E −03 −7.320E−04  5.620E−04 −5.877E−04  1.907E−04 −1.539E−05 −7.938E−06 2  0.000E+00 −1.851E−02  2.205E−02 −1.435E−02  4.935E−03 −7.478E−04 −4.049E−05  1.546E−05 3 −1.712E+01 −2.299E−02  2.342E−02 −1.350E−02  4.936E−03 −9.115E−04  1.890E−04 −3.769E−05 4 −1.066E+01  2.236E−02 −1.469E−02  1.133E−02 −5.301E−03  2.233E−03 −3.491E−04  1.425E−04 5  0.000E+00 −5.564E−03 −2.326E−03  9.238E−04  5.661E−04  2.000E−04  1.347E−04 −2.143E−05 6  0.000E+00 −7.083E−03  7.700E−04  1.159E−03  5.149E−04  1.904E−04  2.712E−05 −2.812E−05 7  0.000E+00 −1.625E−02 −1.085E−02  3.261E−04 −1.222E−04  4.272E−04  1.494E−04 −1.624E−05 8  0.000E+00 −1.220E−02 −1.170E−02 −1.234E−03  2.204E−04  1.755E−04  7.920E−05 −7.466E−05 9  0.000E+00 −1.655E−02 −2.273E−03  1.724E−03  1.667E−04  6.538E−05 −1.845E−06 −3.022E−05 10  0.000E+00 −3.563E−02 −1.680E−04  1.462E−03  5.270E−04  6.627E−05 −3.859E−05  2.679E−06 11  0.000E+00 −5.099E−02  1.298E−05 −2.388E−03 −6.698E−05  2.809E−04  3.049E−05 −1.984E−05 12  0.000E+00 −5.933E−02  1.080E−02 −2.204E−03 −1.292E−03  1.128E−03 −2.689E−04  2.077E−05 13  8.763E−01 −1.469E−02  2.083E−02 −1.226E−02  4.150E−03 −6.803E−04  2.956E−05  2.392E−06 14 −2.987E+00 −1.518E−02  1.583E−02 −8.539E−03  2.349E−03 −3.056E−04  1.687E−05 −4.442E−07 15  0.000E+00 −1.838E−02 −1.437E−03 −1.078E−03  3.153E−04 −5.729E−05  5.580E−06 −3.238E−07 16  0.000E+00 −1.635E−02  1.874E−04 −5.227E−04  1.099E−04 −8.307E−06 −2.986E−08  2.548E−08 17  0.000E+00 −7.074E−02  1.518E−02 −1.783E−03 −1.449E−04 −8.449E−06  3.144E−07 −5.416E−09 18 −3.601E+00 −4.739E−02  1.153E−02 −2.086E−03  2.373E−04  1.594E−05  5.788E−07 −8.744E−09

(172) The values of the respective conditional expressions are as follows:

(173) f1/f=0.81

(174) f2/f1=−2.47

(175) f12/f=1.18

(176) f3/f2=8.33

(177) f23/f=−1.75

(178) f34/f=−8.40

(179) D34/f=0.06

(180) f56/f=2.55

(181) R7f/R7r=1.14

(182) R8f/R8r=1.14

(183) T8/T7=1.91

(184) D89/f=0.07

(185) f89/f=−1.15

(186) R9r/f=0.46

(187) f9/f=−1.22

(188) TL/f=1.19

(189) TL/Hmax=1.52

(190) f/Dep=1.98

(191) f5/f=2.19

(192) Accordingly, the imaging lens of Numerical Data Example 5 satisfies the above-described conditional expressions.

(193) FIG. 14 shows a lateral aberration that corresponds to an image height H and FIG. 15 shows a spherical aberration (mm), astigmatism (mm), and a distortion (%), respectively. As shown in FIGS. 14 and 15, according to the imaging lens of Numerical Data Example 5, the aberrations can be also satisfactorily corrected.

Numerical Data Example 6

(194) Basic Lens Data

(195) TABLE-US-00011 TABLE 11 f = 5.88 mm Fno = 2.0 ω = 38.3° i r ∞ d ∞ n d ν d [mm] L1    1*(ST) 2.520 0.779 1.5443 55.9 f1 = 4.993    2* 30.841 0.061 L2  3 5.199 0.322 1.6707 19.2 f2 = −13.183   4* 3.192 0.232 L3  5* 6.256 0.250 1.6707 19.2 f3 = −100.852  6* 5.634 0.353 L4  7* 1465.518 0.300 1.5443 55.9 f4 = −100.340  8* 52.649 0.029 L5  9* 34.457 0.387 1.5443 55.9 f5 = 18.663   10* −14.348 0.388 L6  11* −420.304 0.384 1.5443 55.9 f6 = −100.572  12* 62.959 0.168 L7  13* −2.981 0.250 1.6707 19.2 f7 = −100.541  14* −3.224 0.030 L8  15* 4.309 0.774 1.5443 55.9 f8 = 11.210   16* 13.735 0.616 L9  17* 127.049 0.983 1.5443 55.9 f9 = −5.321   18* 2.824 0.250 19 ∞ 0.210 1.5168 64.2 20 ∞ 0.450 (IM) ∞
f12=7.056 mm
f23=−11.487 mm
f34=−50.565 mm
f56=22.727 mm
f89=−15.253 mm
f123=7.328 mm
f456=29.365 mm
f789=−12.302 mm
D34=0.353 mm
D89=0.616 mm
T7=0.250 mm
T8=0.774 mm
TL=7.145 mm
Hmax=4.65 mm
Dep=2.897 mm

(196) TABLE-US-00012 TABLE 12 Aspherical surface data i k A4 A6 A8 A10 A12 A14 A16 1  2.359E−01 −4.735E−04 −4.184E−04  5.773E−04 −5.665E−04  2.064E−04 −1.219E−05 −1.030E−05 2  0.000E+00 −1.781E−02  2.246E−02 −1.424E−02 −4.937E−03 −7.538E−04 −4.167E−05  1.767E−05 3 −1.816E+01 −2.277E−02  2.348E−02 −1.360E−02  4.899E−03 −9.401E−04  1.761E−04 −2.494E−05 4 −1.162E+01  2.104E−02 −1.432E−02  1.168E−02 −5.501E−03  1.998E−03 −3.983E−04  1.990E−04 5  0.000E+00 −5.055E−03 −1.621E−03  5.205E−04  3.474E−04  1.553E−04  1.331E−04 −1.806E−06 6  0.000E+00 −4.776E−03 −8.422E−05  7.222E−04  3.895E−04  1.813E−04  4.494E−05 −1.915E−05 7  0.000E+00 −1.755E−02 −1.120E−02  4.364E−05 −2.128E−04  4.111E−04  1.460E−04 −1.651E−05 8  0.000E+00 −1.120E−02 −1.252E−02 −1.325E−03  2.591E−04  1.849E−04  7.335E−05 −7.731E−05 9  0.000E+00 −1.815E−02 −2.666E−03  1.489E−03  8.009E−05  5.011E−05 −3.984E−07 −3.040E−05 10  0.000E+00 −3.678E−02  9.728E−05  1.481E−03  5.128E−04  6.294E−05 −3.862E−05  2.785E−06 11  0.000E+00 −4.538E−02 −1.000E−03 −2.482E−03  1.971E−05  3.159E−04  3.886E−05 −1.790E−05 12  0.000E+00 −6.524E−02  1.008E−02 −2.172E−03 −1.305E−03  1.123E−03 −2.695E−04  2.099E−05 13  6.137E−01 −6.764E−03  2.134E−02 −1.227E−02  4.152E−03 −6.804E−04  2.918E−05  2.303E−06 14 −3.108E+00 −1.594E−02  1.598E−02 −8.479E−03  2.353E−03 −3.060E−04  1.674E−05 −4.796E−07 15  0.000E+00 −2.833E−02  1.091E−03 −1.408E−03 −3.125E−04 −5.304E−05 −5.681E−06 −3.522E−07 16  0.000E+00 −4.972E−03 −8.972E−04 −5.189E−04  1.141E−04 −7.999E−06 −2.986E−08  2.332E−08 17  0.000E+00 −6.990E−02  1.525E−02 −1.781E−03  1.448E−04 −8.461E−06  3.136E−07 −5.434E−09 18 −4.288E+00 −4.503E−02  1.1565−02 −2.092E−03  2.370E−04 −1.595E−05  5.789E−07 −8.704E−09

(197) The values of the respective conditional expressions are as follows:

(198) f1/f=0.85

(199) f2/f1=−2.64

(200) f12/f=1.20

(201) f3/f2=7.65

(202) f23/f=−1.95

(203) f34/f=−8.60

(204) D34/f=0.06

(205) f56/f=3.86

(206) R7f/R7r=0.92

(207) R8f/R8r=0.31

(208) T8/T7=3.09

(209) D89/f=0.10

(210) f89/f=−2.59

(211) R9r/f=0.48

(212) f9/f=−0.90

(213) TL/f=1.21

(214) TL/Hmax=1.54

(215) f/Dep=2.03

(216) f5/f=3.17

(217) Accordingly, the imaging lens of Numerical Data Example 6 satisfies the above-described conditional expressions.

(218) FIG. 17 shows a lateral aberration that corresponds to an image height H and FIG. 18 shows a spherical aberration (mm), astigmatism (mm), and a distortion (%), respectively. As shown in FIGS. 17 and 18, according to the imaging lens of Numerical Data Example 6, the aberrations can be also satisfactorily corrected.

Numerical Data Example 7

(219) Basic Lens Data

(220) TABLE-US-00013 TABLE 13 f = 5.78 mm Fno = 2.0 ω = 39.1° i r ∞ d ∞ n d ν d [mm] L1    1*(ST) 2.507 0.726 1.5443 55.9 f1 = 5.153    2* 21.214 0.056 L2  3 5.069 0.306 1.6707 19.2 f2 = −14.050   4* 3.216 0.259 L3  5* 5.903 0.250 1.6707 19.2 f3 = −96.578   6* 5.318 0.353 L4  7* 139.911 0.345 1.5443 55.9 f4 = −100.334  8* 39.246 0.038 L5  9* 54.056 0.318 1.5443 55.9 f5 = −100.330  10* 27.109 0.251 L6  11* 12.991 0.513 1.5443 55.9 f6 = 11.236   12* −11.396 0.376 L7  13* −2.926 0.250 1.6707 19.2 f7 = 102.337   14* −2.903 0.114 L8  15* 4.149 0.520 1.5443 55.9 f8 = 16.242   16* 7.475 0.629 L9  17* −111.096 0.833 1.5443 55.9 f9 = −4.939   18* 2.762 0.250 19 ∞ 0.210 1.5168 64.2 20 ∞ 0.539 (IM) ∞
f12=7.229 mm
f23=−12.076 mm
f34=−49.456 mm
f56=12.622 mm
f89=−8.506 mm
f123=7.535 mm
f456=14.338 mm
f789=−9.220 mm
D34=0.353 mm
D89=0.629 mm
T7=0.250 mm
T8=0.520 mm
TL=7.064 mm
Hmax=4.71 mm
Dep=2.922 mm

(221) TABLE-US-00014 TABLE 14 Aspherical surface data i k A4 A6 A8 A10 A12 A14 A16 1  2.662E−01  1.637E−04 −2.965E−04  6.088E−04 −5.496E−04  2.122E−04 −1.305E−05 −1.284E−05 2  0.000E+00 −1.735E−02  2.251E−02 −1.426E−02  4.923E−03 −7.586E−04 −4.270E−05  1.949E−05 3 −1.738E+01 −2.214E−02  2.376E−02 −1.356E−02  4.892E−03 −9.501E−04  1.737E−04 −1.479E−05 4 −1.214E+01  2.048E−02 −1.422F−02  1.178E−02 −5.531E−03  1.969E−03 −4.031E−04  1.822E−04 5  0.000E+00 −6.057E−03 −2.176E−03  2.525E−04  2.368E−04  9.432E−05  9.830E−05 −1.411E−06 6  0.000E+00 −3.276E−03 −2.231E−04  4.881E−04  2.740E−04  1.281E−04  2.719E−05 −1.947E−05 7  0.000E+00 −2.189E−02 −1.030E−02  8.650E−05 −4.172E−04  2.887E−04  1.142E−04 −1.340E−05 8  0.000E+00 −7.859E−03 −1.225E−02 −1.505E−03  2.254E−04  2.009E−04  8.641E−05 −7.056E−05 9  0.000E+00 −1.625E−02 −2.674E−03  1.554E−03  7.605E−05  4.541E−05  1.933E−06 −2.471E−05 10  0.000E+00 −4.544E−02  1.287E−04  1.474E−03  4.704E−04  4.789E−05 −4.085E−05  3.447E−06 11  0.000E+00 −4.179E−02 −1.771E−04 −2.483E−03  1.438E−05  3.191E−04  4.107E−05 −1.708E−05 12  0.000E+00 −5.288E−02  1.031E−02 −2.150E−03 −1.283E−03  1.131E−03 −2.677E−04  2.131E−05 13  6.353E−01 −1.137E−02  2.138E−02 −1.220E−02  4.164E−03 −6.787E−04  2.955E−05  2.363E−06 14 −3.600E+00 −1.746E−02  1.545E−02 −8.549E−03  2.351E−03 −3.049E−04  1.706E−05 −4.098E−07 15  0.000E+00 −1.940E−02 −1.369E−04 −1.221E−03  3.278E−04 −5.499E−05  5.501E−06 −2.570E−07 16  0.000E+00 −6.471E−03 −8.918F−04 −5.327E−04  1.131E−04 −8.039F−06 −2.867E−08  2.386E−08 17  0.000E+00 −6.899E−02  1.525E−02 −1.783E−03  1.447E−04 −8.463E−06  3.139E−07 −5.373E−09 18 −4.916E+00 −4.480E−02  1.154E−02 −2.091E−03  2.371E−04 −1.594E−05  5.790E−07 −8.708E−09

(222) The values of the respective conditional expressions are as follows:

(223) f1/f=0.89

(224) f2/f1=−2.73

(225) f12/f=1.25

(226) f3/f2=6.87

(227) f23/f=−2.09

(228) f34/f=−8.55

(229) D34/f=0.06

(230) f56/f=2.18

(231) R7f/R7r=1.01

(232) R8f/R8r=0.56

(233) T8/T7=2.08

(234) D89/f=0.11

(235) f89/f=−1.47

(236) R9r/f=0.48

(237) f9/f=−0.85

(238) TL/f=1.22

(239) TL/Hmax=1.50

(240) f/Dep=1.98

(241) f6/f=1.94

(242) Accordingly, the imaging lens of Numerical Data Example 7 satisfies the above-described conditional expressions.

(243) FIG. 20 shows a lateral aberration that corresponds to an image height H and FIG. 21 shows a spherical aberration (mm), astigmatism (mm), and a distortion (%), respectively. As shown in FIGS. 20 and 21, according to the imaging lens of Numerical Data Example 7, the aberrations can be also satisfactorily corrected.

Numerical Data Example 8

(244) Basic Lens Data

(245) TABLE-US-00015 TABLE 15 f = 6.06 mm Fno = 2.0 ω = 37.8° i r ∞ d ∞ n d ν d [mm] L1    1*(ST) 2.470 0.888 1.5443 55.9 f1 = 4.911    2* 28.322 0.050 L2  3 5.609 0.277 1.6707 19.2 f2 = −12.777   4* 3.323 0.205 L3  5* 4.472 0.260 1.6707 19.2 f3 = −100.712  6* 4.097 0.434 L4  7* 34.457 0.318 1.5413 55.9 f4 = −100.318  8* 21.059 0.078 L5  9* 105.646 0.441 1.5443 55.9 f5 = −100.393  10* 35.962 0.246 L6  11* 21.491 0.464 1.5443 55.9 f6 = 10.004   12* −7.238 0.165 L7  13* −3.133 0.255 1.6707 19.2 f7 = 101.380   14* −3.093 0.115 L8  15* 5.374 0.390 1.5443 55.9 f8 = −97.422   16* 4.755 0.437 L9  17* 8.773 1.182 1.5443 55.9 f9 = −7.549   18* 2.665 0.250 19 ∞ 0.210 1.5168 64.2 20 ∞ 0.682 (IM) ∞
f12=6.999 mm
f23=−11.092 mm
f34=−50.613 mm
f56=11.072 mm
f89=−7.065 mm
f123=7.208 mm
f456=12.369 mm
f789=−7.499 mm
D34=0.434 mm
D89=0.437 mm
T7=0.255 mm
T8=0.390 mm
TL=7.276 mm
Hmax=4.71 mm
Dep=3.063 mm

(246) TABLE-US-00016 TABLE 16 Aspherical surface data i k A4 A6 A8 A10 A12 A14 A16 1  2.199E−01 −6.594E−04 −5.236E−04  6.070E−04 −5.818E−04  1.912E−04 −1.569E−05 −8.512E−06 2  0.000E+00 −1.764E−02  2.219E−02 −1.439E−02  4.917E−03 −7.478E−04 −3.740E−05  1.665E−05 3 −1.676E+01 −2.280E−02  2.374E−02 −1.333E−02  4.912E−03 −9.700E−04  1.710E−04 −1.740E−05 4 −1.216E+01  2.219E−02 −1.436E−02  1.134E−02 −5.406E−03  2.152E−03 −3.931E−04  1.093E−04 5  0.000E+01 −6.314E−03 −2.763E−03  6.240E−04  4.140E−04  1.266E−04  9.873E−06 −3.070E−05 6  0.000E+00 −5.480E−03  5.762E−04  8.163E−04  4.009E−04  1.928E−01  4.389E−05 −3.359E−05 7  0.000E+00 −2.064E−02 −1.059E−02  4.035E−04 −2.178E−04  3.446E−04  1.113E−04 −2.203E−05 8  0.000E+00 −9.944E−03 −1.153E−02 −1.029E−03  3.535E−04  2.212E−04  8.862E−05 −7.387E−05 9  0.000E+00 −1.647E−02 −2.572E−03  1.548E−03  8.802E−05  4.459E−05 −3.966E−06 −2.965E−05 10  0.000E+00 −4.498E−02 −2.952E−04  1.303E−03  4.486E−04  3.926E−05 −4.778E−06 −1.070E−06 11  0.000E+00 −4.431E−02 −8.291E−04 −2.111E−03  7.704E−05  3.107E−04  3.334E−05 −1.973E−05 12  0.000E+00 −5.006E−02  1.098E−02 −2.395E−03 −1.320E−03  1.132E−03 −2.659E−04  2.170E−05 13  6.969E−01 −1.122E−02  2.100E−02 −1.214E−02  4.163E−03 −6.811E−04  2.917E−05  2.409E−06 14 −2.539E+00 −1.543E−02  1.586E−02 −8.556E−03  2.352E−03 −3.046E−04  1.704E−05 −4.367E−07 15  0.000E+00 −2.121E−02 −5.220E−04 −1.062E−03  3.020E−04 −5.896E−05  5.530E−06 −2.842E−07 16  0.000E+00 −1.646E−02 −1.196E−04 −5.224E−04  1.097E−04 −8.360E−06 −3.357E−08  2.621E−08 17  0.000E+00 −7.153E−02  1.515E−02 −1.782E−03  1.450E−04 −8.440E−06  3.144E−07 −5.499E−09 18 −3.150E+00 −4.761E−02  1.153E−02 −2.086E−03  2.372E−04 −1.5945−05  5.787E−07 −8.732E−09

(247) The values of the respective conditional expressions are as follows:

(248) f1/f=0.81

(249) f2/f1=−2.60

(250) f12/f=1.15

(251) f3/f2=7.88

(252) f23/f=−1.83

(253) f34/f=−8.35

(254) D34/f=0.07

(255) f56/f=1.83

(256) R7f/R7r=1.01

(257) R8f/R8r=1.13

(258) T8/T7=1.53

(259) D89/f=0.07

(260) f89/f=−1.16

(261) R9r/f=0.44

(262) f9/f=−1.24

(263) TL/f=1.20

(264) TL/Hmax=1.55

(265) f/Dep=1.98

(266) f6/f=1.65

(267) Accordingly, the imaging lens of Numerical Data Example 8 satisfies the above-described conditional expressions.

(268) FIG. 23 shows a lateral aberration that corresponds to an image height H and FIG. 24 shows a spherical aberration (mm), astigmatism (mm), and a distortion (%), respectively. As shown in FIGS. 23 and 24, according to the imaging lens of Numerical Data Example 8, the aberrations can be also satisfactorily corrected.

Numerical Data Example 9

(269) Basic Lens Data

(270) TABLE-US-00017 TABLE 17 f = 5.80 mm Fno = 2.0 ω = 39.1° i r ∞ d ∞ n d νd [mm] L1    1*(ST) 2.505 0.720 1.5443 55.9 f1 = 5.121    2* 22.216 0.054 L2  3 5.135 0.312 1.6707 19.2 f2 = −13.973   4* 3.236 0.250 L3  5* 5.725 0.250 1.6707 19.2 f3 = −100.809  6* 5.186 0.364 L4  7* 146.071 0.331 1.5443 55.9 f4 = −100.334  8* 39.719 0.040 L5  9* 44.257 0.319 1.5443 55.9 f5 = −100.331  10* 24.384 0.250 L6  11* 12.345 0.497 1.5443 55.9 f6 = 10.625   12* −10.726 0.403 L7  13* −2.836 0.266 1.6707 19.2 f7 = −102.330  14* −3.069 0.071 L8  15* 4.001 0.543 1.5443 55.9 f8 = 14.678   16* 7.632 0.591 L9  17* −249.837 0.931 1.5443 55.9 f9 = −5.076   18* 2.797 0.250 19 ∞ 0.210 1.5168 64.2 20 ∞ 0.509 (IM) ∞
f12=7.180 mm
f23=−12.076 mm
f34=−50.564 mm
f56=11.861 mm
f89=−9.656 mm
f123=7.458 mm
f456=13.359 mm
f789=−8.294 mm
D34=0.364 mm
D89=0.591 mm
T7=0.266 mm
T8=0.543 mm
TL=7.088 mm
Hmax=4.71 mm
Dep=2.842 mm

(271) TABLE-US-00018 TABLE 18 Aspherical surface data i k A4 A6 A8 A10 A12 A14 A16 1  2.656E−01  1.680E−04 −3.047E−04  6.071E−04 −5.513E−04  2.113E−04 −1.317E−05 −1.272E−05 2  0.000E+00 −1.726E−02  2.253E−02 −1.426E−02  4.923E−03 −7.589E−04 −4.262E−05  1.983E−05 3 −1.721E+01 −2.211E−02  2.380E−02 −1.354E−02  4.884E−03 −9.606E−04  1.707E−04 −1.256E−05 4 −1.217E+01  2.063E−02 −1.418E−02  1.174E−02 −5.542E−03  1.976E−03 −4.017E−04  1.738E−04 5  0.000E+00 −6.090E−03 −2.246E−03  2.805E−04  2.612E−04  9.861E−05  9.423E−05 −5.508E−06 6  0.000E+00 −3.324E−03 −2.055E−04  5.026E−04  2.871E−04  1.364E−04  2.911E−05 −2.275E−05 7  0.000E+00 −2.177E−02 −1.027E−02  5.058E−05 −4.391E−04  2.809E−04  1.129E−04 −1.239E−05 8  0.000E+00 −8.089E−03 −1.229E−02 −1.510E−03  2.227E−04  1.992E−04  8.598E−05 −7.040E−05 9  0.000E+00 −1.623E−02 −2.694E−03  1.545E−03  7.326E−05  4.479E−06  1.752E−06 −2.479E−05 10  0.000E+00 −4.539E−02  1.045E−04  1.448E−03  4.620E−04  4.553E−05 −4.163E−05  3.148E−06 11  0.000E+00 −4.219E−02 −2.686E−04 −2.474E−03  1.914E−05  3.196E−04  4.093E−05 −1.716E−05 12  0.000E+00 −5.265E−02  1.040E−02 −2.135E−03 −1.281E−03  1.131E−03 −2.676E−04  2.132E−05 13  6.147E−01 −1.030E−02  2.153E−02 −1.218E−02  4.166E−03 −6.784E−04  2.958E−05  2.364E−06 14 −3.296E+00 −1.799E−02  1.544E−02 −8.541E−03  2.352E−03 −3.048E−04  1.708E−05 −4.103E−07 15  0.000E+00 −2.160E−02  7.676E−05 −1.244E−03  3.266E−04 −5.471E−05  5.539E−06 −2.502E−07 16  0.000E+00 −6.717E−03 −9.389E−04 −5.273E−04  1.135E−04 −8.026E−06 −2.979E−08  2.344E−08 17  0.000E+00 −6.915E−02  1.525E−02 −1.782E−03  1.447E−04 −8.462E−06  3.138E−07 −5.398E−09 18 −4.435E+00 −4.473E−04  1.153E−02 −2.092E−03  2.370E−04 −1.595E−06  5.790E−07 −8.704E−09

(272) The values of the respective conditional expressions are as follows:

(273) f1/f=0.88

(274) f2/f1=−2.73

(275) f12/f=1.24

(276) f3/f2=7.21

(277) f23/f=−2.08

(278) f34/f=−8.72

(279) D34/f=0.06

(280) f56/f=2.05

(281) R7f/R7r=0.92

(282) R8f/R8r=0.52

(283) T8/T7=2.04

(284) D89/f=0.10

(285) f89/f=−1.67

(286) R9r/f=0.48

(287) f9/f=−0.88

(288) TL/f=1.22

(289) TL/Hmax=1.51

(290) f/Dep=2.04

(291) f6/f=1.83

(292) Accordingly, the imaging lens of Numerical Data Example 9 satisfies the above-described conditional expressions.

(293) FIG. 26 shows a lateral aberration that corresponds to an image height H and FIG. 27 shows a spherical aberration (mm), astigmatism (mm), and a distortion (%), respectively. As shown in FIGS. 26 and 27, according to the imaging lens of Numerical Data Example 9, the aberrations can be also satisfactorily corrected.

Numerical Data Example 10

(294) Basic Lens Data

(295) TABLE-US-00019 TABLE 19 f = 6.11 mm Fno = 2.0 ω = 37.6° i r ∞ d ∞ n d ν d [mm] L1    1*(ST) 2.463 0.882 1.5443 55.9 f1 = 4.905    2* 27.709 0.049 L2  3 5.548 0.272 1.6707 19.2 f2 = −12.984   4* 3.322 0.195 L3  5* 4.744 0.252 1.6707 19.2 f3 = −91.146   6* 4.308 0.430 L4  7* 25.133 0.317 1.5443 55.9 f4 = −100.374  8* 17.138 0.083 L5  9* 91.364 0.464 1.5443 55.9 f5 = −100.672  10* 34.191 0.258 L6  11* 16.195 0.474 1.5443 55.9 f6 = 9.049    12* −7.005 0.196 L7  13* −3.014 0.253 1.6707 19.2 f7 = −100.624  14* −3.261 0.082 L8  15* 5.500 0.365 1.5443 55.9 f8 = −100.153  16* 4.879 0.411 L9  17* 7.880 1.249 1.5443 55. 9 f9 = −8.049   18* 2.658 0.260 19 ∞ 0.210 1.5168 64.2 20 ∞ 0.677 (IM) ∞
f12=6.942 mm
f23=−11.142 mm
f34=−47.984 mm
f56=9.911 mm
f89=−7.492 mm
f123=7.204 mm
f456=10.944 mm
f789=−6.632 mm
D34=0.430 mm
D89=0.411 mm
T7=0.253 mm
T8=0.365 mm
TL=7.309 mm
Hmax=4.71 mm
Dep=3.084 mm

(296) TABLE-US-00020 TABLE 20 Aspherical surface data i k A4 A6 A8 A10 A12 A14 A16 1  2.215E−01 −5.797E−04 −5.454E−04  5.973E−04 −5.806E−04  1.924E−04 −1.583E−05 −8.913E−06 2  0.000E+00 −1.774E−02  2.216E−02 −1.439E−02  4.918E−03 −7.476E−04 −3.766E−05  1.690E−05 3 −1.663E+01 −2.275E−02  2.369E−02 −1.338E−02  4.915E−03 −9.543E−04  1.778E−04 −2.006E−05 4 −1.201E+01  2.216E−02 −1.438E−02  1.136E−02 −5.407E−03  2.151E−03 −3.818E−04  1.254E−04 5  0.000E+00 −5.867E−03 −2.603E−03  6.406E−04  4.342E−04  1.459E−04  1.105E−04 −2.291E−05 6  0.000E+00 −5.419E−03  7.105E−04  9.089E−04  4.102E−04  1.765E−04  3.426E−05 −3.141E−05 7  0.000E+00 −1.911E−02 −1.075E−02  2.839E−04 −2.629E−04  3.276E−04  1.037E−04 −2.675E−05 8  0.000E+00 −9.847E−03 −1.155E−02 −1.139E−03  3.088E−04  2.113E−04  8.781E−05 −7.315E−05 9  0.000E+00 −1.610E−02 −2.563E−03  1.590E−03  1.052E−04  4.675E−05 −5.285E−06 −3.078E−05 10  0.000E+00 −4.389E−02 −9.404E−05  1.351E−03  4.505E−04  3.867E−05 −4.754E−05 −6.514E−07 11  0.000E+00 −4.553E−02 −1.065E−03 −2.180E−03  7.176E−05  3.139E−04  3.497E−05 −1.927E−05 12  0.000E+00 −4.980E−02  1.102E−02 −2.378E−03 −1.322E−03  1.131E−03 −2.660E−04  2.181E−05 13  6.866E−01 −9.569E−03  2.110E−02 −1.215E−02  4.165E−03 −6.806E−04  2.904E−05  2.275E−06 14 −2.009E+00 −1.631E−02  1.586E−02 −8.543E−03  2.352E−03 −3.047E−04  1.698E−05 −4.507E−07 15  0.000E+00 −2.322E−02 −1.611E−04 −1.070E−03  3.023E−04 −5.917E−05  5.569E−06 −2.210E−07 16  0.000E+00 −1.583E−02 −2.333E−04 −5.125E−04  1.111E−04 −8.303E−06 −3.632E−08  2.514E−08 17  0.000E+00 −7.197E−02  1.515E−02 −1.782E−03  1.451E−04 −8.439E−06  3.143E−07 −5.534E−09 18 −2.810E+00 −4.789E−02  1.154E−02 −2.086E−03  2.372E−04 −1.594E−05  5.787E−07 −8.735E−09

(297) The values of the respective conditional expressions are as follows:

(298) f1/f=0.80

(299) f2/f1=−2.65

(300) f12/f=1.14

(301) f3/f2=7.02

(302) f23/f=−1.82

(303) f34/f=−7.86

(304) D34/f=0.07

(305) f56/f=1.62

(306) R7f/R7r=0.92

(307) R8f/R8r=1.13

(308) T8/T7=1.45

(309) D89/f=0.07

(310) f89/f=−1.23

(311) R9r/f=0.44

(312) f9/f=−1.32

(313) TL/f=1.20

(314) TL/Hmax=1.55

(315) f/Dep=1.98

(316) f6/f=1.48

(317) Accordingly, the imaging lens of Numerical Data Example 10 satisfies the above-described conditional expressions.

(318) FIG. 29 shows a lateral aberration that corresponds to an image height H and FIG. 30 shows a spherical aberration (mm), astigmatism (mm), and a distortion (%), respectively. As shown in FIGS. 29 and 30, according to the imaging lens of Numerical Data Example 10, the aberrations can be also satisfactorily corrected.

(319) According to the embodiment of the invention, the imaging lenses have very wide angles of view (2ω) of 65° or greater. More specifically, the imaging lenses of Numerical Data Examples 1 through 10 have angles of view (2ω) of 75.2° to 79.1°. According to the imaging lens of the embodiment, it is possible to take an image over a wider range than that taken by a conventional imaging lens.

(320) In recent years, with advancement in digital-zoom technology to enlarge any range of an image obtained through an imaging lens, an imaging element with a higher pixel count has been often applied in combination with an imaging lens of higher resolution. In case of an imaging element with a high pixel count, a light-receiving area per pixel often decreases, so that an image tends to be dark. According to the imaging lenses of Numerical Data Examples 1 through 10, the Fnos are as small as 2.0. According to the imaging lenses of the embodiment, it is achievable to take a sufficiently bright image even with the above-described imaging element with a higher pixel count.

(321) Accordingly, when the imaging lens of the above-described embodiment is applied in an imaging optical system such as cameras built in mobile devices (e.g., cellular phones, smartphones, and mobile information terminals), digital still cameras, security cameras, onboard cameras, and network cameras, it is possible to attain both high performance and downsizing of the cameras.

(322) The present invention is applicable in an imaging lens that is mounted in a relatively small-sized camera, such as cameras built in mobile devices (e.g., cellular phones, smartphones, and mobile information terminals), digital still cameras, security cameras, onboard cameras, and network cameras.

(323) The disclosure of Japanese Patent Application No. 2019-032943, filed on Feb. 26, 2019, is incorporated in the application by reference.

(324) While the present invention has been explained with reference to the specific embodiment of the present invention, the explanation is illustrative and the present invention is limited only by the appended claims.