CN111239972B

CN111239972B - Image pickup lens group

Info

Publication number: CN111239972B
Application number: CN202010165501.0A
Authority: CN
Inventors: 黄林; 戴付建
Original assignee: Zhejiang Sunny Optics Co Ltd
Current assignee: Zhejiang Sunny Optics Co Ltd
Priority date: 2017-03-13
Filing date: 2017-03-13
Publication date: 2022-05-03
Anticipated expiration: 2037-03-13
Also published as: CN106873129A; CN106873129B; CN111239972A; CN111308657B; CN111308657A

Abstract

The application discloses a camera lens group. The image pickup lens group comprises the following components in sequence from an object side to an image side of the image pickup lens group: a first lens having a positive refractive power, an object-side surface of which is convex; the image side surface of the second lens is a concave surface; a third lens having optical power; a fourth lens having an optical power; a fifth lens having optical power; and a sixth lens having optical power, wherein an effective focal length f2 of the second lens and an effective focal length f4 of the fourth lens satisfy | f2/f4| <1.5, and a combined focal length f12 of the first lens and the second lens and an effective focal length f of the image pickup lens group satisfy f/f12< 1.2. The utility model provides a camera lens group adopts 6 plastics aspheric surface lenses, has the characteristics that effective focal length is long, the formation of image quality is good and the module size is little.

Description

Image pickup lens group

Divisional application

The application is a divisional application of a Chinese invention patent application with the invention name of 'a camera lens group' and the application number of 201710145892.8, which is filed on 3, 13 and 2017.

Technical Field

The invention relates to a camera lens group, in particular to a small camera lens group consisting of six lenses.

Background

With the development of science and technology, people have higher and higher requirements on the imaging quality of portable electronic products, and electronic products such as mobile phones and tablet computers become thinner and smaller in size. The performance of the currently used photosensitive elements such as CCD (charge-coupled device) or CMOS (complementary metal-oxide semiconductor) image sensors is also increasing and the size thereof is gradually decreasing, so that the corresponding camera lenses also meet the requirements of high imaging quality and miniaturization.

In order to satisfy the miniaturization, it is necessary to reduce the number of lenses of the imaging lens as much as possible, but the lack of freedom in design due to this makes it difficult to satisfy the market demand for high imaging performance. In addition, the current mainstream camera lenses adopt a wide-angle optical system in order to obtain images with wide viewing angles, but are not beneficial to shooting distant objects, and clear images cannot be obtained.

The present invention is therefore directed to provide an imaging lens group having high resolution and being miniaturized.

Disclosure of Invention

To solve at least some of the problems of the prior art, the present invention provides an image pickup lens group.

One aspect of the present invention provides an image capturing lens group including, in order from an object side to an image side of the image capturing lens group, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens; wherein 0.8< DT11/DT62<1.2, DT11 is the maximum effective radius of the object-side surface of the first lens, and DT62 is the maximum effective radius of the image-side surface of the sixth lens.

Another aspect of the present invention provides an imaging lens group, comprising, in order from an object side to an image side of the imaging lens group, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens, | (R1-R4)/(R1+ R4) | ≦ 1.0, R1 is a radius of curvature of an object side surface of the first lens, and R4 is a radius of curvature of an image side surface of the second lens.

According to one embodiment of the present invention, the HFOV is <20 °, which is half of the maximum field angle of the imaging lens group.

According to one embodiment of the present invention, 0.25< BFL/TTL <0.5, where BFL is an on-axis distance from the image-side surface of the sixth lens element to the image plane, and TTL is an on-axis distance from the object-side surface of the first lens element to the image plane.

According to one embodiment of the present invention, 1.5< CTmax/CTmin <3.0, the CTmax being a maximum central thickness of the first to sixth lenses, and the CTmin being a minimum central thickness of the first to sixth lenses.

According to one embodiment of the invention, 0.5 ≦ f1/f <1.2, where f1 is the effective focal length of the first lens and f is the effective focal length of the imaging lens group.

According to one embodiment of the invention, | f2/f4| <1.5, where f2 is the effective focal length of the second lens and f4 is the effective focal length of the fourth lens.

According to one embodiment of the present invention, | R11|/f ≦ 1.5, where R11 is the radius of curvature of the object-side surface of the sixth lens element, and f is the effective focal length of the imaging lens group.

According to one embodiment of the invention, | (R1-R4)/(R1+ R4) | 1.0 or less, the R1 is the radius of curvature of the object-side surface of the first lens, and the R4 is the radius of curvature of the image-side surface of the second lens.

According to one embodiment of the invention, TTL/f is less than or equal to 1.1, wherein TTL is the on-axis distance from the object side surface of the first lens to the imaging surface, and f is the effective focal length of the camera lens group.

According to one embodiment of the present invention, f/f12<1.2, where f12 is the combined focal length of the first lens and the second lens, and f is the effective focal length of the image capture lens group.

Still another aspect of the present invention provides an image capturing lens group including, in order from an object side to an image side of the image capturing lens group, a first lens having positive power, a convex object-side surface thereof, a second lens having negative power, a concave image-side surface thereof, a third lens, a fourth lens, a fifth lens, and a sixth lens having respective powers, an effective focal length f2 of the second lens and an effective focal length f4 of the fourth lens satisfy | f2/f4| <1.5, and a combined focal length f12 of the first lens and the second lens and an effective focal length f of the image capturing lens group satisfy f/f12< 1.2.

According to an embodiment of the present invention, 0.25< BFL/TTL <0.5, where BFL is an on-axis distance from an image-side surface of the sixth lens element to an image plane, and TTL is an on-axis distance from an object-side surface of the first lens element to the image plane.

According to one embodiment of the present invention, 1.5< CTmax/CTmin <3.0, the CTmax being a maximum central thickness among the first to sixth lenses, and the CTmin being a minimum central thickness among the first to sixth lenses.

According to one embodiment of the present invention, 0.5 ≦ f1/f <1.2, the f1 being an effective focal length of the first lens, the f being an effective focal length of the image pickup lens group.

According to one embodiment of the invention, 0.8< DT11/DT62<1.2, DT11 being the maximum effective radius of the object-side surface of the first lens and DT62 being the maximum effective radius of the image-side surface of the sixth lens.

According to one embodiment of the present invention, | R11|/f ≦ 1.5, the R11 is a radius of curvature of the object-side surface of the sixth lens, and the f is an effective focal length of the imaging lens group.

According to one embodiment of the invention, | (R1-R4)/(R1+ R4) | ≦ 1.0, the R1 is a radius of curvature of the object-side surface of the first lens, and the R4 is a radius of curvature of the image-side surface of the second lens.

According to one embodiment of the present invention, TTL/f is less than or equal to 1.1, where TTL is an on-axis distance from an object-side surface of the first lens element to an image plane, and f is an effective focal length of the image capturing lens assembly.

In another aspect, the present application provides an image capturing lens assembly, which includes, in order from an object side to an image side of the image capturing lens assembly, a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens, wherein a radius of curvature R11 of an object-side surface of the sixth lens and an effective focal length f of the image capturing lens assembly satisfy | R11|/f ≦ 1.5, an on-axis distance TTL from an object-side surface of the first lens to an image plane and the effective focal length f of the image capturing lens assembly satisfy TTL/f ≦ 1.1, and a combined focal length f12 of the first lens and the second lens and the effective focal length f of the image capturing lens assembly satisfy f/f12< 1.2.

According to one embodiment of the invention, the first lens has a positive optical power, and the object-side surface thereof is convex; the second lens has negative focal power, and the image side surface of the second lens is a concave surface; and the third lens, the fourth lens, the fifth lens and the sixth lens each have optical power.

According to one embodiment of the invention, the maximum effective radius DT11 of the object side surface of the first lens and the maximum effective radius DT62 of the image side surface of the sixth lens meet 0.8< DT11/DT62< 1.2.

According to one embodiment of the invention, | f2/f4| <1.5, the f2 is the effective focal length of the second lens, and the f4 is the effective focal length of the fourth lens.

The camera lens group provided by the invention adopts 6 plastic aspheric lenses, and has the characteristics of long effective focal length, good imaging quality and small module size.

Drawings

Other features, objects and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments thereof, taken in conjunction with the accompanying drawings. In the drawings:

fig. 1 shows a schematic configuration diagram of an image pickup lens group of embodiment 1;

fig. 2 to 5 show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the imaging lens group of embodiment 1;

fig. 6 is a schematic view showing a configuration of an image pickup lens group of embodiment 2;

fig. 7 to 10 show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the imaging lens group of embodiment 2;

fig. 11 is a schematic view showing a configuration of an image pickup lens group of embodiment 3;

fig. 12 to 15 show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the imaging lens group of embodiment 3;

fig. 16 is a schematic view showing a configuration of an image pickup lens group of embodiment 4;

fig. 17 to 20 show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the imaging lens group of embodiment 4;

fig. 21 is a schematic view showing a configuration of an image pickup lens group of embodiment 5;

fig. 22 to 25 show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the imaging lens group of example 5;

fig. 26 is a schematic view showing a configuration of an image pickup lens group of embodiment 6;

fig. 27 to 30 show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the imaging lens group of example 6;

fig. 31 is a schematic view showing a configuration of an image pickup lens group of embodiment 7;

fig. 32 to 35 show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the imaging lens group of example 7;

fig. 36 is a schematic view showing a configuration of an image pickup lens group of embodiment 8;

fig. 37 to 40 show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of the imaging lens group of example 8;

fig. 41 is a schematic view showing a configuration of an image pickup lens group of embodiment 9;

fig. 42 to 45 show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of the imaging lens group of example 9;

fig. 46 is a schematic view showing the structure of an image pickup lens group of embodiment 10;

fig. 47 to 50 show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the imaging lens group of example 10;

fig. 51 shows a schematic configuration diagram of an image pickup lens group of embodiment 11;

fig. 52 to 55 show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of the imaging lens group of example 11;

fig. 56 is a schematic view showing the structure of an image pickup lens group of embodiment 12;

fig. 57 to 60 show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of the imaging lens group of example 12;

fig. 61 is a schematic view showing a configuration of an image pickup lens group of embodiment 13;

fig. 62 to 65 show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of the imaging lens group of example 13;

fig. 66 shows a schematic configuration diagram of an image pickup lens group of embodiment 14;

fig. 67 to 70 show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of the imaging lens group of example 14;

fig. 71 is a schematic view showing the structure of an image pickup lens group of embodiment 15;

fig. 72 to 75 show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of the imaging lens group of example 15;

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the related invention are shown in the drawings.

It will be understood that when an element or layer is referred to herein as being "on," "connected to" or "coupled to" another element or layer, it can be directly on, connected or coupled to the other element or layer or intervening elements or layers may be present. When an element is referred to as being "directly on," "directly connected to" or "directly coupled to" another element or layer, there are no intervening elements or layers present. Like numbers refer to like elements throughout the specification. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

It will be understood that, although the

terms

1, 2 or first, second, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the present application.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, a feature that does not define a singular or plural form is also intended to include a feature of the plural form unless the context clearly indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes," "including," "has," "having," "contains" and/or "containing," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. A statement such as "at least one of" when appearing after a list of elements modifies the entire list of elements rather than modifying individual elements within the list. Furthermore, when describing embodiments of the present application, the use of "may" mean "one or more embodiments of the present application. Also, the term "exemplary" is intended to refer to an example or illustration.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

The application provides a camera lens group. The imaging lens group according to the present application is provided with, in order from an object side to an image side of the imaging lens group: the lens includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens.

In an embodiment of the present application, the first lens has a positive optical power and the object-side surface is convex. In an embodiment of the present application, the second lens has a negative power and the image-side surface thereof is concave. In the embodiment of the application, the maximum effective radius DT11 of the object side surface of the first lens and the maximum effective radius DT62 of the image side surface of the sixth lens meet the following condition: 0.8< DT11/DT62<1.2, and more specifically, satisfies 0.87 ≦ DT11/DT62 ≦ 1.11. Satisfy the camera lens group of above-mentioned relation, can compress the horizontal size of camera lens, reduce the module height.

In an embodiment of the present application, half of the maximum field angle of the image capturing lens group is satisfied by HFOV: HFOV <20 deg., more specifically, HFOV ≦ 16.6 deg. The long focus function of the camera lens group can be realized by reasonably setting the value of half of the HFOV of the maximum field angle of the camera lens group.

In the embodiment of the present application, an on-axis distance BFL from the image-side surface of the sixth lens element to the imaging surface and an on-axis distance TTL from the object-side surface of the first lens element to the imaging surface satisfy: 0.25< BFL/TTL <0.5, more specifically, 0.29. ltoreq. BFL/TTL. ltoreq.0.41. The camera lens group satisfying the above relation can ensure back focus, and is beneficial to improving space and manufacturability.

In the embodiment of the present application, a maximum center thickness CTmax of the first to sixth lenses and a minimum center thickness CTmin of the first to sixth lenses satisfy: 1.5< CTmax/CTmin <3.0, and more specifically, 1.87. ltoreq. CTmax/CTmin. ltoreq.2.96. By reasonably setting the relation between CTmax and CTmin, the thickness of the lens can be uniformly distributed, and the improvement of space and manufacturability is facilitated.

In the embodiment of the present application, the effective focal length f1 of the first lens and the effective focal length f of the image pickup lens group satisfy: 0.5. ltoreq. f1/f <1.2, more specifically, 0.51. ltoreq. f 1/f. ltoreq.1.16. The camera lens group satisfying the above relation can ensure that the first lens bears proper positive focal power, and realize a long-focus function.

In the embodiment of the present application, the effective focal length f2 of the second lens and the effective focal length f4 of the fourth lens satisfy: i f2/f 4I <1.5, more specifically, | f2/f4| ≦ 1.34. Reasonable power distribution can be realized through the camera lens group with the configuration, so that aberration is effectively reduced.

In the embodiment of the present application, a radius of curvature R11 of the object-side surface of the sixth lens and an effective focal length f of the image pickup lens group satisfy: i R11/f ≦ 1.5, more specifically, | R11/f ≦ 1.33. The shooting lens group with the configuration can alleviate the light incidence angle of the telephoto lens and reduce aberration.

In the embodiments of the present application, a radius of curvature R1 of the object-side surface of the first lens and a radius of curvature R4 of the image-side surface of the second lens satisfy: i (R1-R4)/(R1+ R4) | or less 1.0, more specifically, satisfy I (R1-R4)/(R1+ R4) | or less 0.94. Through the arrangement, reasonable shape collocation can be realized, and the optical power of the first lens and the second lens is ensured, and meanwhile, the aberration influence is reduced.

In the embodiment of the present application, an on-axis distance TTL from an object-side surface of the first lens to an imaging surface and an effective focal length f of the image capturing lens group satisfy: TTL/f is less than or equal to 1.1, and more specifically, TTL/f is less than or equal to 1.08, so that size compression under telephoto is realized.

In the embodiment of the present application, a combined focal length f12 of the first lens and the second lens and an effective focal length f of the image pickup lens group satisfy: f/f12<1.2, more specifically, f/f12 ≦ 1.02. With this arrangement, the imaging lens group can achieve reasonable power distribution, thereby achieving a telephoto function.

The present application is further described below with reference to specific examples.

Example 1

An image pickup lens group according to embodiment 1 of the present application is described first with reference to fig. 1 to 5.

Fig. 1 is a schematic diagram showing the structure of an image pickup lens group of embodiment 1. As shown in fig. 1, the image pickup lens group includes 6 lenses. The 6 lenses are a first lens E1 having an object side surface S1 and an image side surface S2, a second lens E2 having an object side surface S3 and an image side surface S4, a third lens E3 having an object side surface S5 and an image side surface S6, a fourth lens E4 having an object side surface S7 and an image side surface S8, a fifth lens E5 having an object side surface S9 and an image side surface S10, and a sixth lens E6 having an object side surface S11 and an image side surface S12, respectively. The first lens E1 to the sixth lens E6 are disposed in order from the object side to the image side of the imaging lens group. The first lens E1 may have positive optical power, and its object-side surface S1 may be convex; the second lens E2 may have a negative power and its image-side surface S4 may be concave. The image pickup lens group further comprises a filter E7 which is used for filtering infrared light and provided with an object side surface S13 and an image side surface S14. In this embodiment, light from the object passes through the respective surfaces S1 to S14 in sequence and is finally imaged on the imaging surface S15.

In this embodiment, the first lens E1 through the sixth lens E6 have respective effective focal lengths f1 through f6, respectively. The first lens E1 to the sixth lens E6 are arranged in order along the optical axis and collectively determine the total effective focal length f of the imaging lens group. Table 1 below shows effective focal lengths f1 to f6 of the first lens E1 to the sixth lens E6, a total effective focal length f of the image pickup lens group, a total length TTL of the image pickup lens group, and half of the maximum field angle HFOV of the image pickup lens group.

f1(mm)	5.48	f(mm)	10.72
				f2(mm)	-9.89	TTL(mm)	11.26
f3(mm)	-101.36	HFOV(deg)	16.4
				f4(mm)	27.48
f5(mm)	-179.54
				f6(mm)	-14.73

TABLE 1

Table 2 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens in the image pickup lens group in this embodiment.

TABLE 2

Table 3 below shows the high-order term coefficients A of the respective aspherical surfaces S1-S12 usable for the respective aspherical lenses in this embodiment₄、A₆、A₈、A₁₀、A₁₂、A₁₄And A₁₆。

Flour mark

A4

A6

A8

A10

A12

A14

A16

S1

-2.4349E-03

-5.7105E-04

7.5026E-05

-5.8125E-05

8.9175E-06

-1.1902E-06

7.4941E-08

S2

-2.2293E-03

2.7295E-04

-3.2523E-04

-2.8087E-04

1.5479E-04

-2.9779E-05

2.3073E-06

S3

7.1785E-03

-1.2535E-03

-5.1872E-04

2.0046E-04

6.2685E-06

-1.1696E-05

1.7665E-06

S4

9.1641E-04

-3.3445E-03

7.4725E-04

1.2211E-04

-4.0885E-05

9.0198E-07

0.0000E+00

S5

9.7399E-03

7.3044E-04

-8.9117E-04

-4.0076E-05

1.3081E-04

-2.7231E-05

0.0000E+00

S6

1.1777E-02

-1.3298E-03

-1.8564E-03

7.2464E-04

-5.3860E-05

-2.4619E-05

3.2952E-06

S7

-6.6154E-03

-1.0409E-03

-2.8268E-03

1.5663E-03

-2.2767E-04

-1.5855E-05

2.1796E-06

S8

-1.0493E-02

5.1707E-03

-8.5240E-03

4.9510E-03

-6.6943E-04

-1.7415E-04

4.3247E-05

S9

-1.8379E-02

1.3370E-02

-9.6335E-03

4.8096E-03

-1.2739E-03

1.6848E-04

-1.1966E-05

S10

-3.4140E-02

1.8005E-02

-4.3275E-03

1.0577E-03

-1.0954E-03

6.2061E-04

-9.4823E-05

S11

-8.9829E-02

1.6736E-02

-1.8935E-03

2.4406E-03

-3.4288E-03

1.4778E-03

-2.0812E-04

S12

-6.9353E-02

2.1008E-02

-7.9878E-03

3.6990E-03

-1.7164E-03

4.6488E-04

-5.2374E-05

TABLE 3

Fig. 2 shows on-axis chromatic aberration curves of the imaging lens group of embodiment 1, which represent the deviation of the convergent focus of light rays of different wavelengths after passing through the optical system. Fig. 3 shows an astigmatism curve representing a meridional field curvature and a sagittal field curvature of the image pickup lens group of embodiment 1. Fig. 4 shows distortion curves of the image pickup lens group of embodiment 1, which represent values of distortion magnitudes in the case of different angles of view. Fig. 5 shows a chromatic aberration of magnification curve of the imaging lens group of embodiment 1, which represents a deviation of different image heights on an image formation plane after light passes through the imaging lens group. As can be seen from the above and with reference to fig. 2 to 5, the image pickup lens group according to embodiment 1 is an image pickup lens group having high resolution and being miniaturized.

Example 2

An image pickup lens group according to embodiment 2 of the present application is described below with reference to fig. 6 to 10. The arrangement structure of the imaging lens group described in embodiment 2 and the following embodiments is the same as that described in embodiment 1 except for parameters of each lens of the imaging lens group, such as a radius of curvature, a thickness, a material, a conic coefficient, an effective focal length, an on-axis pitch, a high-order term coefficient of each lens, and the like of each lens. In this embodiment and the following embodiments, descriptions of parts similar to those of embodiment 1 will be omitted for the sake of brevity.

Fig. 6 is a schematic diagram showing the structure of an image pickup lens group of embodiment 2. The imaging lens group includes, in order from the object side to the image side, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens E6.

Table 4 below shows effective focal lengths f1 to f6 of the first lens E1 to the sixth lens E6, a total effective focal length f of the image pickup lens group, a total length TTL of the image pickup lens group, and half of the maximum field angle HFOV of the image pickup lens group.

f1(mm)	6.04	f(mm)	10.69
				f2(mm)	-8.44	TTL(mm)	11.50
f3(mm)	-11.95	HFOV(deg)	16.6
				f4(mm)	17.67
f5(mm)	5.74
				f6(mm)	-5.44

TABLE 4

Table 5 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens in the image pickup lens group in this embodiment.

Flour mark	Surface type	Radius of curvature	Thickness of	Material	Coefficient of cone
						OBJ	Spherical surface	All-round	All-round
STO	Spherical surface	All-round	-0.5073
						S1	Aspherical surface	3.4579	1.5000	1.55,56.1	-0.1694
S2	Aspherical surface	-62.2021	0.0500		50.0000
						S3	Aspherical surface	4.9933	0.7716	1.65,23.5	-0.1515
S4	Aspherical surface	2.4487	0.6498		-0.1063
						S5	Aspherical surface	66.7627	0.8268	1.65,23.5	-99.0000
S6	Aspherical surface	6.8878	0.7811		2.3230
						S7	Aspherical surface	10.6542	0.8728	1.55,56.1	8.0222
S8	Aspherical surface	-100.2609	0.0500		50.0000
						S9	Aspherical surface	16.7326	1.1688	1.65,23.5	35.9267
S10	Aspherical surface	-4.6374	0.8790		-0.3474
						S11	Aspherical surface	-3.5307	0.6000	1.65,23.5	0.7600
S12	Aspherical surface	813.6540	0.0501		50.0000
						S13	Spherical surface	All-round	0.3000	1.52,64.2
S14	Spherical surface	All-round	3.0016
						S15	Spherical surface	All-round

TABLE 5

Table 6 below shows the high-order term coefficients A of the respective aspherical surfaces S1-S12 usable for the respective aspherical lenses in this embodiment₄、A₆、A₈、A₁₀And A₁₂。

Flour mark	A4	A6	A8	A10	A12
						S1	-5.9756E-04	-2.6665E-04	-4.3403E-05	1.3947E-06	-3.3333E-06
S2	-3.6747E-04	-7.9811E-04	-7.4451E-05	-6.7525E-06	1.9947E-06
						S3	-5.3449E-03	7.4750E-04	-2.7726E-05	-5.5493E-05	1.2005E-05
S4	-9.7773E-03	2.7066E-03	1.5149E-04	1.3455E-04	2.2940E-05
						S5	-6.5011E-03	1.4260E-03	6.6242E-04	2.9183E-05	-1.4056E-05
S6	-1.3381E-03	1.9353E-03	2.8185E-04	3.2732E-05	-5.2667E-05
						S7	7.5597E-04	6.4849E-04	1.8271E-04	-4.3770E-05	-1.6737E-07
S8	-1.5722E-03	2.2414E-04	-1.7930E-05	6.0800E-06	-3.1685E-06
						S9	6.4173E-04	-4.0468E-04	-2.2385E-05	1.4841E-06	1.1759E-06
S10	3.0908E-03	-8.8287E-04	3.6025E-05	8.2312E-06	1.6217E-06
						S11	-1.3364E-03	-2.0162E-05	1.3452E-04	1.7381E-05	-7.4338E-07
S12	-6.7518E-03	7.8110E-04	4.2999E-07	-4.8755E-06	4.2002E-07

TABLE 6

Fig. 7 shows on-axis chromatic aberration curves of the imaging lens group of embodiment 2, which represent the deviation of the convergent focus of light rays of different wavelengths after passing through the optical system. Fig. 8 shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the image pickup lens group of embodiment 2. Fig. 9 shows a distortion curve of the image pickup lens group of embodiment 2, which represents values of distortion magnitudes in the case of different angles of view. Fig. 10 shows a chromatic aberration of magnification curve of the imaging lens group of embodiment 2, which represents a deviation of different image heights on an image formation plane after light passes through the imaging lens group. In summary, and as can be seen with reference to fig. 7 to 10, the image pickup lens group according to embodiment 2 is an image pickup lens group having high resolution and being miniaturized.

Example 3

An image pickup lens group according to embodiment 3 of the present application is described below with reference to fig. 11 to 15.

Fig. 11 is a schematic diagram showing the structure of an image pickup lens group of embodiment 3. The imaging lens group includes, in order from the object side to the image side, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens E6.

Table 7 below shows effective focal lengths f1 to f6 of the first lens E1 to the sixth lens E6, a total effective focal length f of the image pickup lens group, a total length TTL of the image pickup lens group, and half HFOV of the maximum field angle of the image pickup lens group.

f1(mm)	6.15	f(mm)	10.69
				f2(mm)	-8.79	TTL(mm)	11.50
f3(mm)	-11.42	HFOV(deg)	16.6
				f4(mm)	15.38
f5(mm)	5.79
				f6(mm)	-5.34

TABLE 7

Table 8 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens in the image pickup lens group in this embodiment.

Flour mark	Surface type	Radius of curvature	Thickness of	Material	Coefficient of cone
						OBJ	Spherical surface	All-round	All-round
S1	Aspherical surface	3.4386	1.4533	1.55,56.1	-0.1662
						S2	Aspherical surface	-129.3288	0.0500		50.0000
S3	Aspherical surface	4.7693	0.7626	1.65,23.5	-0.1359
						S4	Aspherical surface	2.4301	0.5226		-0.1414
STO	Spherical surface	All-round	0.0000
						S5	Aspherical surface	27.5750	0.7595	1.65,23.5	-99.0000
S6	Aspherical surface	5.7586	0.9325		2.6622
						S7	Aspherical surface	9.2762	0.8781	1.55,56.1	8.5770
S8	Aspherical surface	-86.6267	0.0819		50.0000
						S9	Aspherical surface	20.0154	1.1363	1.65,23.5	36.5679
S10	Aspherical surface	-4.4943	0.8732		-0.2616
						S11	Aspherical surface	-3.4834	0.6000	1.65,23.5	0.8156
S12	Aspherical surface	396.6307	0.1501		-99.0000
						S13	Spherical surface	All-round	0.3000	1.52,64.2
S14	Spherical surface	All-round	3.0009
						S15	Spherical surface	All-round

TABLE 8

Table 9 below shows the high-order term coefficients A of the respective aspherical surfaces S1-S12 usable for the respective aspherical lenses in this embodiment₄、A₆、A₈、A₁₀And A₁₂。

Flour mark	A4	A6	A8	A10	A12
						S1	-5.6653E-04	-2.6985E-04	-4.6866E-05	9.1108E-07	-3.5533E-06
S2	-5.2215E-04	-8.3898E-04	-8.0109E-05	-5.4395E-06	2.2598E-06
						S3	-5.3237E-03	7.3249E-04	-2.5395E-05	-5.5054E-05	1.4650E-05
S4	-1.0350E-02	2.7701E-03	7.7200E-05	1.7863E-04	4.3434E-05
						S5	-6.6804E-03	1.2344E-03	6.3019E-04	2.3118E-05	-1.5318E-05
S6	-1.1266E-03	1.9642E-03	2.4820E-04	-9.1534E-06	-6.8688E-05
						S7	9.0292E-04	6.9681E-04	1.6248E-04	-5.3629E-05	1.8011E-06
S8	-2.1255E-03	2.0878E-04	-2.9776E-06	7.5894E-06	-3.8373E-06
						S9	6.8290E-04	-4.1333E-04	-2.5162E-05	2.2736E-06	1.3246E-06
S10	2.9384E-03	-8.7101E-04	3.8555E-05	7.6061E-06	2.0015E-06
						S11	-2.0203E-03	-7.6542E-05	1.4220E-04	2.0413E-05	-4.0613E-07
S12	-6.9247E-03	7.5953E-04	2.4331E-06	-4.7762E-06	4.4634E-07

TABLE 9

Fig. 12 shows on-axis chromatic aberration curves of the imaging lens group of embodiment 3, which represent the deviation of the convergent focus of light rays of different wavelengths after passing through the optical system. Fig. 13 shows astigmatism curves representing meridional field curvature and sagittal field curvature of the image pickup lens group of example 3. Fig. 14 shows distortion curves of the image pickup lens group of embodiment 3, which represent distortion magnitude values in the case of different angles of view. Fig. 15 shows a chromatic aberration of magnification curve of the imaging lens group of embodiment 3, which represents a deviation of different image heights on an image formation plane after light passes through the imaging lens group. In summary, and as can be seen with reference to fig. 12 to 15, the image pickup lens group according to embodiment 3 is an image pickup lens group having high resolution and being miniaturized.

Example 4

An image pickup lens group according to embodiment 4 of the present application is described below with reference to fig. 16 to 20.

Fig. 16 is a schematic diagram showing the structure of an image pickup lens group of embodiment 4. The imaging lens group includes, in order from the object side to the image side, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens E6.

Table 10 below shows effective focal lengths f1 to f6 of the first lens E1 to the sixth lens E6, a total effective focal length f of the image pickup lens group, a total length TTL of the image pickup lens group, and half HFOV of the maximum field angle of the image pickup lens group.

f1 mm)	6.32	f(mm)	10.70
				f2(mm)	-10.21	TTL(mm)	11.50
f3(mm)	-10.94	HFOV(deg	16.6
				f4(mm)	7.63
f5(mm)	17.72
				f6(mm)	-7.86

Watch 10

Table 11 below shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens in the image pickup lens group in this embodiment.

TABLE 11

Table 12 below shows the high-order term coefficients A of the respective aspherical surfaces S1-S12 usable for the respective aspherical lenses in this embodiment₄、A₆、A₈、A₁₀And A₁₂。

Flour mark	A4	A6	A8	A10	A12
						S1	1.3060E-04	-6.6577E-05	7.5873E-06	1.3986E-06	-7.5601E-07
S2	6.4111E-04	1.2336E-05	2.5833E-06	1.4421E-06	-1.5750E-06
						S3	-5.1413E-03	1.8154E-04	3.6266E-05	-2.4716E-06	-2.4938E-07
S4	-6.8213E-03	1.0965E-05	-1.2729E-04	5.0733E-06	-5.1914E-06
						S5	-9.4652E-04	-5.6831E-04	5.0636E-05	-2.7882E-06	1.2966E-06
S6	-1.6607E-04	5.3349E-04	1.7017E-04	5.2626E-05	-1.6322E-07
						S7	3.9591E-04	2.9788E-04	9.9665E-05	1.7050E-05	-4.9510E-06
S8	-7.5319E-04	1.8025E-04	4.4757E-05	-1.1710E-06	-2.8978E-06
						S9	1.3965E-03	3.2863E-04	4.2444E-05	1.6706E-06	-2.7342E-06
S10	4.1717E-03	-6.6635E-05	-1.3059E-06	2.1101E-06	1.0487E-06
						S11	-1.1039E-03	-6.6701E-04	-7.0980E-05	6.2008E-06	2.2965E-07
S12	-5.7148E-03	-8.4863E-05	1.9790E-05	1.7425E-07	-1.5183E-07

TABLE 12

Fig. 17 shows on-axis chromatic aberration curves of the imaging lens group of example 4, which represent the deviation of the convergent focus of light rays of different wavelengths after passing through the optical system. Fig. 18 shows an astigmatism curve representing a meridional field curvature and a sagittal field curvature of the image pickup lens group of embodiment 4. Fig. 19 shows distortion curves of the image pickup lens group of embodiment 4, which represent values of distortion magnitudes in the case of different angles of view. Fig. 20 shows a chromatic aberration of magnification curve of the imaging lens group of embodiment 4, which represents a deviation of different image heights on an image formation plane after light passes through the imaging lens group. As described above and as can be seen from fig. 17 to 20, the image pickup lens group according to embodiment 4 is an image pickup lens group having high resolution and being miniaturized.

Example 5

An image pickup lens group according to embodiment 5 of the present application is described below with reference to fig. 21 to 25.

Fig. 21 is a schematic diagram showing the structure of an image pickup lens group of embodiment 5. The imaging lens group includes, in order from the object side to the image side, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens E6.

Table 13 below shows effective focal lengths f1 to f6 of the first lens E1 to the sixth lens E6, a total effective focal length f of the image pickup lens group, a total length TTL of the image pickup lens group, and half of the maximum field angle HFOV of the image pickup lens group.

Watch 13

Table 14 below shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens in the image pickup lens group in this embodiment.

Flour mark	Surface type	Radius of curvature	Thickness of	Material	Coefficient of cone
						OBJ	Spherical surface	All-round	All-round
STO	Spherical surface	All-round	-0.5214
						S1	Aspherical surface	3.5740	1.0198	1.55,56.1	-0.0413
S2	Aspherical surface	14.4759	0.0500		35.2901
						S3	Aspherical surface	6.2651	0.6000	1.65,23.5	1.8557
S4	Aspherical surface	2.9727	1.2901		-0.1107
						S5	Aspherical surface	19.2874	1.2010	1.55,56.1	4.2922
S6	Aspherical surface	-4.4101	0.0500		0.5568
						S7	Aspherical surface	28.6319	0.8326	1.55,56.1	-99.0000
S8	Aspherical surface	-10.4288	0.0500		10.9099
						S9	Aspherical surface	8.5745	0.7517	1.55,56.1	-4.0446
S10	Aspherical surface	2.3623	1.1523		0.1739
						S11	Aspherical surface	-5.1566	0.6525	1.55,56.1	3.6247
S12	Aspherical surface	-9.7383	0.0500		18.8875
						S13	Spherical surface	All-round	0.3000	1.52,64.2
S14	Spherical surface	All-round	3.5011
						S15	Spherical surface	All-round

TABLE 14

Table 15 below shows the high-order term coefficients A of the respective aspherical surfaces S1-S12 usable for the respective aspherical lenses in this embodiment₄、A₆、A₈、A₁₀And A₁₂。

Flour mark	A4	A6	A8	A10	A12
						S1	-4.8158E-04	-1.3549E-05	1.2042E-05	-9.5256E-07	-5.1131E-12
S2	7.8338E-04	5.4092E-05	5.9091E-06	5.4898E-06	-3.1866E-06
						S3	-4.8548E-03	2.2476E-04	4.5056E-05	-9.5657E-06	-1.3797E-06
S4	-5.1227E-03	3.3358E-04	-1.3731E-05	1.9174E-05	-4.2308E-06
						S5	6.7731E-04	-3.4033E-04	1.0970E-05	-6.4674E-06	-3.8016E-06
S6	-4.6499E-04	-3.6956E-04	-3.2045E-05	6.7570E-06	-2.4866E-06
						S7	-1.0371E-02	-1.0725E-04	8.6903E-06	3.1154E-06	5.9190E-06
S8	-7.3587E-03	-1.8274E-04	-1.9187E-05	9.8504E-06	1.9699E-06
						S9	-4.9931E-03	-7.7138E-04	-1.3880E-04	-3.4369E-05	-1.1977E-06
S10	-1.1271E-02	-8.9485E-05	-1.3346E-04	-2.9688E-05	-1.2512E-05
						S11	-4.8006E-03	8.1042E-04	2.7861E-04	3.2087E-05	3.2592E-07
S12	-6.5483E-03	2.1504E-04	2.9266E-05	2.1415E-06	-2.0362E-06

Watch 15

Fig. 22 shows on-axis chromatic aberration curves of the imaging lens group of example 5, which represent the deviation of the convergent focus of light rays of different wavelengths after passing through the optical system. Fig. 23 shows an astigmatism curve representing a meridional field curvature and a sagittal field curvature of the imaging lens group of embodiment 5. Fig. 24 shows a distortion curve of the image pickup lens group of example 5, which represents values of distortion magnitudes in the case of different angles of view. Fig. 25 shows a chromatic aberration of magnification curve of the imaging lens group of embodiment 5, which represents a deviation of different image heights on an image formation plane after light passes through the imaging lens group. As described above and as can be seen from fig. 22 to 25, the image pickup lens group according to embodiment 5 is an image pickup lens group having high resolution and being miniaturized.

Example 6

An image pickup lens group according to embodiment 6 of the present application is described below with reference to fig. 26 to 30.

Fig. 26 is a schematic diagram showing the structure of an image pickup lens group of embodiment 6. The imaging lens group includes, in order from the object side to the image side, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens E6.

Table 16 below shows effective focal lengths f1 to f6 of the first lens E1 to the sixth lens E6, a total effective focal length f of the image pickup lens group, a total length TTL of the image pickup lens group, and half of the maximum field angle HFOV of the image pickup lens group.

f1(mm)	10.26	f(mm)	10.70
				f2(mm)	-11.34	TTL(mm)	11.50
f3(mm)	7.14	HFOV(deg)	16.2
				f4(mm)	-16.93
f5(mm)	-12.07
				f6(mm)	22.74

TABLE 16

Table 17 below shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens in the image pickup lens group in this embodiment.

Flour mark	Surface type	Radius of curvature	Thickness of	Material	Coefficient of cone
						OBJ	Spherical surface	All-round	All-round
STO	Spherical surface	All-round	-0.5922
						S1	Aspherical surface	3.2647	1.0434	1.55,56.1	0.0363
S2	Aspherical surface	6.9368	0.0500		6.6501
						S3	Aspherical surface	6.5794	0.6000	1.65,23.5	0.0491
S4	Aspherical surface	3.3427	1.2128		-0.1458
						S5	Aspherical surface	5.1770	1.1636	1.55,56.1	0.9879
S6	Aspherical surface	-14.5471	0.0500		14.5739
						S7	Aspherical surface	5.5655	0.7743	1.65,23.5	3.7601
S8	Aspherical surface	3.4873	0.5310		-0.2926
						S9	Aspherical surface	8.3642	0.6981	1.55,56.1	-15.3971
S10	Aspherical surface	3.5791	0.2745		-0.4792
						S11	Aspherical surface	4.8102	1.0159	1.65,23.5	-11.0991
S12	Aspherical surface	6.5584	0.2864		-17.2922
						S13	Spherical surface	All-round	0.3000	1.52,64.2
S14	Spherical surface	All-round	3.5007
						S15	Spherical surface	All-round

TABLE 17

Table 18 below shows the high-order term coefficients A of the respective aspherical surfaces S1-S12 usable for the respective aspherical lenses in this embodiment₄、A₆、A₈、A₁₀And A₁₂。

Watch 18

Fig. 27 shows on-axis chromatic aberration curves of the imaging lens group of example 6, which represent the deviation of the convergent focus of light rays of different wavelengths after passing through the optical system. Fig. 28 shows an astigmatism curve representing a meridional field curvature and a sagittal field curvature of the imaging lens group of example 6. Fig. 29 shows a distortion curve of the image pickup lens group of example 6, which represents the distortion magnitude values in the case of different angles of view. Fig. 30 shows a chromatic aberration of magnification curve of the imaging lens group of embodiment 6, which represents a deviation of different image heights on an image formation plane after light passes through the imaging lens group. In summary, and as can be seen with reference to fig. 27 to 30, the image pickup lens group according to embodiment 6 is an image pickup lens group having high resolution and being miniaturized.

Example 7

An image pickup lens group according to embodiment 7 of the present application is described below with reference to fig. 31 to 35.

Fig. 31 is a schematic diagram showing the structure of an image pickup lens group of embodiment 7. The imaging lens group includes, in order from the object side to the image side, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens E6.

Table 19 below shows effective focal lengths f1 to f6 of the first lens E1 to the sixth lens E6, a total effective focal length f of the image pickup lens group, a total length TTL of the image pickup lens group, and half of the maximum field angle HFOV of the image pickup lens group.

f1(mm)	9.19	f(mm)	10.70
				f2(mm)	-8.94	TTL(mm)	11.33
f3(mm)	7.24	HFOV(deg)	16.2
				f4(mm)	-28.55
f5(mm)	108.03
				f6(mm)	-13.56

Watch 19

Table 20 below shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens in the image pickup lens group in this embodiment.

Watch 20

Table 21 below shows the high-order term coefficients A of the aspherical surfaces S1 to S12 of the aspherical lenses usable in this embodiment₄、A₆、A₈、A₁₀And A₁₂。

Flour mark	A4	A6	A8	A10	A12
						S1	-5.9492E-04	6.7458E-06	5.8498E-06	-1.7088E-07	-4.5796E-07
S2	2.2938E-03	1.3829E-04	2.8106E-06	1.5856E-06	-6.6836E-08
						S3	-5.8593E-04	1.0988E-05	2.3099E-05	1.0837E-06	-1.7195E-07
S4	-2.1052E-03	1.3921E-04	1.3392E-05	2.1123E-05	-2.1848E-06
						S5	1.4615E-03	-1.1684E-04	-5.0048E-06	-7.8172E-06	1.1127E-06
S6	-3.6542E-03	-2.4282E-04	-3.3365E-05	3.7474E-06	-5.9338E-07
						S7	-7.9903E-03	-2.4922E-04	4.2242E-06	1.6212E-06	4.6813E-07
S8	-1.2422E-02	4.6253E-05	4.4915E-05	8.6199E-06	-1.7893E-05
						S9	-6.1503E-03	-1.2062E-04	1.6748E-04	-6.0149E-06	-1.5696E-05
S10	-3.8418E-03	-4.0683E-04	-4.3505E-05	3.8469E-05	-2.3870E-05
						S11	-2.0126E-02	-2.9064E-04	-7.5024E-05	-8.5240E-05	-5.6308E-06
S12	-1.3680E-02	8.7605E-04	-1.6089E-05	-1.6101E-05	3.9285E-06

TABLE 21

Fig. 32 shows on-axis chromatic aberration curves of the imaging lens group of example 7, which represent the convergent focus deviations of light rays of different wavelengths after passing through the optical system. Fig. 33 shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the imaging lens group of example 7. Fig. 34 shows a distortion curve of the image pickup lens group of example 7, which represents values of distortion magnitude in the case of different angles of view. Fig. 35 shows a chromatic aberration of magnification curve of the imaging lens group of embodiment 7, which represents a deviation of different image heights on an image formation plane after light passes through the imaging lens group. In summary, and as can be seen with reference to fig. 32 to 35, the image pickup lens group according to embodiment 7 is an image pickup lens group having high resolution and being miniaturized.

Example 8

An image pickup lens group according to embodiment 8 of the present application is described below with reference to fig. 36 to 40.

Fig. 36 is a schematic diagram showing the structure of an image pickup lens group of embodiment 8. The imaging lens group includes, in order from the object side to the image side, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens E6.

The following table 22 shows effective focal lengths f1 to f6 of the first lens E1 to the sixth lens E6, a total effective focal length f of the image pickup lens group, a total length TTL of the image pickup lens group, and half HFOV of the maximum field angle of the image pickup lens group.

TABLE 22

Table 23 below shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens in the image pickup lens group in this embodiment.

Flour mark	Surface type	Radius of curvature	Thickness of	Material	Coefficient of cone
						OBJ	Spherical surface	All-round	All-round
STO	Spherical surface	All-round	-0.5552
						S1	Aspherical surface	3.4273	1.1222	1.55,56.1	0.0164
S2	Aspherical surface	37.9811	0.0500		48.3236
						S3	Aspherical surface	5.3841	0.9273	1.66,21.5	0.1066
S4	Aspherical surface	2.4966	1.0290		-0.0268
						S5	Aspherical surface	-5.4053	0.9681	1.55,56.1	-0.4828
S6	Aspherical surface	-3.7313	0.0500		0.1283
						S7	Aspherical surface	10.9144	1.2205	1.55,56.1	-9.3004
S8	Aspherical surface	-10.8151	0.7671		1.5110
						S9	Aspherical surface	-4.7449	0.6000	1.55,56.1	1.8278
S10	Aspherical surface	12.9153	0.1318		-5.5303
						S11	Aspherical surface	10.4363	0.6571	1.65,23.5	-8.0190
S12	Aspherical surface	14.9510	0.1769		33.5339
						S13	Spherical surface	Go to nothing	0.3000	1.52,64.2
S14	Spherical surface	All-round	3.5009
						S15	Spherical surface	All-round

TABLE 23

Table 24 below shows the high-order term coefficients A of the respective aspherical surfaces S1-S12 usable for the respective aspherical lenses in this embodiment₄、A₆、A₈、A₁₀And A₁₂。

Flour mark	A4	A6	A8	A10	A12
						S1	-6.9692E-05	-4.8948E-05	6.0658E-06	-2.1870E-07	-6.9976E-07
S2	1.6663E-03	-6.8788E-05	-5.7498E-06	2.2935E-06	-1.4142E-06
						S3	-3.9168E-03	1.7674E-04	2.4038E-05	-4.7749E-06	-2.3266E-07
S4	-5.9286E-03	4.9735E-04	3.5768E-06	9.4031E-06	-2.9729E-07
						S5	-6.2822E-03	-4.0004E-04	-4.9245E-05	-2.7024E-05	2.7832E-06
S6	-4.2995E-04	-1.2511E-04	-3.6284E-05	7.2278E-06	1.0517E-06
						S7	3.9193E-03	2.0286E-04	4.7330E-05	4.9027E-06	3.8005E-08
S8	-8.1023E-03	7.5124E-07	-4.7537E-05	-1.1911E-06	3.2012E-06
						S9	-8.4030E-03	-9.0497E-04	-1.1261E-04	-8.6054E-06	1.5446E-05
S10	-6.0685E-04	-3.3373E-04	-5.2603E-05	-8.8154E-07	1.5549E-06
						S11	-1.0683E-02	3.7379E-04	2.9968E-05	-8.8379E-06	-4.9716E-06
S12	-1.2396E-02	2.5782E-04	4.7156E-05	-6.0528E-06	-1.9358E-06

Watch 24

Fig. 37 shows on-axis chromatic aberration curves of the imaging lens group of example 8, which represent convergent focus deviations of light rays of different wavelengths after passing through an optical system. Fig. 38 shows an astigmatism curve representing a meridional field curvature and a sagittal field curvature of the imaging lens group of example 8. Fig. 39 shows a distortion curve of the image pickup lens group of example 8, which represents values of distortion magnitude in the case of different angles of view. Fig. 40 shows a chromatic aberration of magnification curve of the imaging lens group of embodiment 8, which represents a deviation of different image heights on an image formation plane after light passes through the imaging lens group. As described above and can be seen with reference to fig. 37 to 40, the image pickup lens group according to embodiment 8 is an image pickup lens group having high resolution and being miniaturized.

Example 9

An image pickup lens group according to embodiment 9 of the present application is described below with reference to fig. 41 to 45.

Fig. 41 is a schematic diagram showing the structure of an image pickup lens group of embodiment 9. The imaging lens group includes, in order from the object side to the image side, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens E6.

Table 25 below shows effective focal lengths f1 to f6 of the first lens E1 to the sixth lens E6, a total effective focal length f of the image pickup lens group, a total length TTL of the image pickup lens group, and half of the maximum field angle HFOV of the image pickup lens group.

f1(mm)	8.29	f(mm)	10.70
				f2(mm)	-8.94	TTL(mm)	11.50
f3(mm)	6.61	HFOV(deg)	16.2
				f4(mm)	-29.79
f5(mm)	-10.30
				f6(mm)	264.61

TABLE 25

Table 26 below shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens in the image pickup lens group in this embodiment.

Flour mark	Surface type	Radius of curvature	Thickness of	Material	Coefficient of cone
						OBJ	Spherical surface	All-round	All-round
STO	Spherical surface	All-round	-0.5330
						S1	Aspherical surface	3.5693	1.0272	1.55,56.1	0.0754
S2	Aspherical surface	15.1316	0.0500		41.6783
						S3	Aspherical surface	9.5210	0.9429	1.65,23.5	2.2186
S4	Aspherical surface	3.4553	1.0920		-0.2736
						S5	Aspherical surface	12.7278	1.3914	1.55,56.1	-3.0970
S6	Aspherical surface	-4.8481	0.0500		0.7879
						S7	Aspherical surface	4.0835	0.6777	1.55,56.1	-5.3437
S8	Aspherical surface	3.0731	0.8631		-2.9109
						S9	Aspherical surface	-7.6977	0.6000	1.55,56.1	4.1070
S10	Aspherical surface	21.5180	0.0517		-36.8777
						S11	Aspherical surface	6.6925	0.7027	1.65,23.5	-0.6145
S12	Aspherical surface	6.6781	0.2514		-18.9811
						S13	Spherical surface	All-round	0.3000	1.52,64.2
S14	Spherical surface	All-round	3.5000
						S15	Spherical surface	All-round

Watch 26

Table 27 below shows the high-order term coefficients A of the respective aspherical surfaces S1-S12 usable for the respective aspherical lenses in this embodiment₄、A₆、A₈、A₁₀And A₁₂。

Watch 27

Fig. 42 shows on-axis chromatic aberration curves of the imaging lens group of example 9, which represent deviation of convergent focuses of light rays of different wavelengths after passing through an optical system. Fig. 43 shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the imaging lens group of example 9. Fig. 44 shows a distortion curve of the image pickup lens group of example 9, which represents values of distortion magnitudes in the case of different angles of view. Fig. 45 shows a chromatic aberration of magnification curve of the imaging lens group of example 9, which represents a deviation of different image heights on an image formation plane after light passes through the imaging lens group. In summary, and as can be seen with reference to fig. 42 to 45, the image pickup lens group according to embodiment 9 is an image pickup lens group having high resolution and miniaturization.

Example 10

An image pickup lens group according to embodiment 10 of the present application is described below with reference to fig. 46 to 50.

Fig. 46 is a schematic diagram showing the structure of an image pickup lens group of embodiment 10. The imaging lens group includes, in order from the object side to the image side, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens E6.

Table 28 below shows effective focal lengths f1 to f6 of the first lens E1 to the sixth lens E6, a total effective focal length f of the image pickup lens group, a total length TTL of the image pickup lens group, and half of the maximum field angle HFOV of the image pickup lens group.

f1(mm)	7.30	f(mm)	10.71
				f2(mm)	-7.27	TTL(mm)	11.31
f3(mm)	34.89	HFOV(deg)	16.3
				f4(mm)	18.34
f5(mm)	30.56
				f6(mm)	-14.56

Watch 28

The following table 29 shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens in the image pickup lens group in this embodiment.

Watch 29

Table 30 below shows the high-order term coefficients A of the aspherical surfaces S1-S12 of the aspherical lenses usable in this embodiment₄、A₆、A₈、A₁₀And A₁₂。

Flour mark	A4	A6	A8	A10	A12
						S1	-3.2489E-03	-3.1506E-04	-3.5033E-05	-5.1227E-06	-7.1857E-07
S2	4.8417E-03	-5.5136E-04	-1.0880E-04	-5.2187E-06	1.0941E-06
						S3	7.2427E-03	-6.0405E-04	-4.5290E-05	-3.9770E-06	3.7766E-06
S4	-5.5153E-03	2.3054E-04	-7.7799E-05	-1.5705E-06	-3.3987E-06
						S5	3.5605E-03	8.2329E-05	6.0374E-05	-1.4123E-05	-4.7090E-06
S6	-4.6103E-04	-6.5590E-06	-4.2505E-05	5.6013E-06	9.4922E-07
						S7	-5.4261E-03	-2.1871E-04	-3.8651E-06	-4.7853E-06	5.1337E-07
S8	1.2658E-03	-2.0254E-04	-3.4499E-06	5.4190E-07	-8.5233E-06
						S9	-6.6890E-03	9.3135E-04	2.4784E-05	-2.3035E-05	4.7532E-06
S10	-1.0983E-02	3.3835E-03	-1.4562E-04	8.7113E-05	1.0319E-05
						S11	-3.1426E-02	-3.0441E-04	-9.6962E-05	-7.8470E-05	-1.2698E-05
S12	-2.2468E-02	1.5067E-03	-6.9668E-05	-1.8099E-05	2.8948E-06

Watch 30

Fig. 47 shows on-axis chromatic aberration curves of the imaging lens group of example 10, which represent the convergent focus deviations of light rays of different wavelengths after passing through the optical system. Fig. 48 shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the imaging lens group of example 10. Fig. 49 shows a distortion curve of the image pickup lens group of example 10, which represents the distortion magnitude values in the case of different angles of view. Fig. 50 shows a chromatic aberration of magnification curve of the imaging lens group of embodiment 10, which represents a deviation of different image heights on an image formation plane after light passes through the imaging lens group. In summary, and as can be seen with reference to fig. 47 to 50, the image pickup lens group according to embodiment 10 is an image pickup lens group having high resolution and being miniaturized.

Example 11

An image pickup lens group according to embodiment 11 of the present application is described below with reference to fig. 51 to 55.

Fig. 51 is a schematic diagram showing the structure of an image pickup lens group of embodiment 11. The imaging lens group includes, in order from the object side to the image side, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens E6.

The following table 31 shows effective focal lengths f1 to f6 of the first lens E1 to the sixth lens E6, a total effective focal length f of the image pickup lens group, a total length TTL of the image pickup lens group, and half HFOV of the maximum field angle of the image pickup lens group.

f1(mm)	5.55	f(mm)	10.70
				f2(mm)	-7.65	TTL(mm)	11.38
f3(mm)	-61.19	HFOV(deg)	16.5
				f4(mm)	8.12
f5(mm)	215.50
				f6(mm)	-12.39

Watch 31

Table 32 below shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens in the image pickup lens group in this embodiment.

Flour mark	Surface type	Radius of curvature	Thickness of	Material	Coefficient of cone
						OBJ	Spherical surface	All-round	All-round
STO	Spherical surface	All-round	-0.5972
						S1	Aspherical surface	3.1939	1.3204	1.55,56.1	-0.0418
S2	Aspherical surface	-51.1088	0.0500		-48.6690
						S3	Aspherical surface	6.0052	0.7067	1.65,23.5	-0.0568
S4	Aspherical surface	2.5856	0.2551		-0.1047
						S5	Aspherical surface	3.4519	0.7885	1.55,56.1	-0.0791
S6	Aspherical surface	2.8764	0.8444		0.4337
						S7	Aspherical surface	-5.0309	1.5000	1.55,56.1	-1.0508
S8	Aspherical surface	-2.6058	0.1865		-0.3225
						S9	Aspherical surface	-2.9844	0.6000	1.65,23.5	0.2387
S10	Aspherical surface	-3.1524	0.6785		-0.6922
						S11	Aspherical surface	-4.4191	0.6000	1.55,56.1	0.0398
S12	Aspherical surface	-13.3311	0.0500		8.0420
						S13	Spherical surface	All-round	0.3000	1.52,64.2
S14	Spherical surface	All-round	3.5011
						S15	Spherical surface	All-round

Watch 32

Table 33 below shows the high-order term coefficients A of the aspherical surfaces S1 to S12 of the aspherical lenses usable in this embodiment₄、A₆、A₈、A₁₀And A₁₂。

Flour mark	A4	A6	A8	A10	A12
						S1	-3.8890E-04	-6.4793E-05	6.7438E-06	4.6436E-07	-1.1996E-06
S2	5.3486E-04	-1.3958E-05	-1.9700E-05	-3.1336E-06	2.7803E-07
						S3	-4.4740E-03	-5.3033E-05	4.2489E-06	1.8865E-06	2.0131E-06
S4	-4.3761E-03	-2.7775E-04	3.8056E-05	6.8865E-05	1.7621E-05
						S5	-1.3799E-04	4.2396E-04	1.5496E-04	1.7304E-05	7.7076E-07
S6	7.3744E-04	2.3237E-03	5.0857E-04	9.3822E-05	-4.1261E-05
						S7	-6.5911E-04	8.3321E-04	2.5871E-04	-2.0272E-05	-1.8334E-05
S8	1.0377E-02	-6.7727E-04	-1.4345E-04	-2.7071E-05	-1.4230E-05
						S9	7.6549E-03	8.2860E-05	-1.3161E-04	-6.4366E-05	-1.1469E-05
S10	2.9464E-03	8.3490E-05	-9.1402E-05	-2.0771E-05	-2.8893E-06
						S11	3.2007E-03	-6.7525E-04	-3.2998E-05	8.9614E-06	-2.3566E-06
S12	-6.5549E-03	-3.2137E-05	1.1242E-05	-4.1060E-06	1.9075E-07

Watch 33

Fig. 52 shows on-axis chromatic aberration curves of the imaging lens group of example 11, which represent the deviation of the convergent focus of light rays of different wavelengths after passing through the optical system. Fig. 53 shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the imaging lens group of example 11. Fig. 54 shows a distortion curve of the image pickup lens group of example 11, which represents values of distortion magnitudes in the case of different angles of view. Fig. 55 shows a chromatic aberration of magnification curve of the imaging lens group of example 11, which represents a deviation of different image heights on an image formation plane after light passes through the imaging lens group. As can be seen from the above and with reference to fig. 52 to 55, the image pickup lens group according to embodiment 11 is an image pickup lens group having high resolution and being miniaturized.

Example 12

An image pickup lens group according to embodiment 12 of the present application is described below with reference to fig. 56 to 60.

Fig. 56 is a schematic diagram showing the structure of an image pickup lens group of embodiment 12. The imaging lens group includes, in order from the object side to the image side, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens E6.

The following table 34 shows effective focal lengths f1 to f6 of the first lens E1 to the sixth lens E6, a total effective focal length f of the image pickup lens group, a total length TTL of the image pickup lens group, and half HFOV of the maximum field angle of the image pickup lens group.

f1(mm)	12.38	f(mm)	10.71
				f2(mm)	-10.69	TTL(mm)	11.17
f3(mm)	4.90	HFOV(deg)	16.2
				f4(mm)	53.38
f5(mm)	-3.37
				f6(mm)	8.32

Watch 34

Table 35 below shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens in the image pickup lens group in this embodiment.

Flour mark	Surface type	Radius of curvature	Thickness of	Material	Coefficient of cone
						OBJ	Spherical surface	All-round	All-round
STO	Spherical surface	All-round	-0.6035
						S1	Aspherical surface	3.2650	0.9528	1.55,56.1	0.0349
S2	Aspherical surface	5.6583	0.0500		1.1104
						S3	Aspherical surface	4.1988	0.6000	1.66,21.5	0.5909
S4	Aspherical surface	2.4801	0.6811		-0.0423
						S5	Aspherical surface	3.2152	1.4366	1.55,56.1	-0.0773
S6	Aspherical surface	-13.4601	0.3821		-4.4558
						S7	Aspherical surface	-7.2431	0.6202	1.65,23.5	0.3472
S8	Aspherical surface	-6.1871	0.5495		-6.7187
						S9	Aspherical surface	-2.9267	0.6000	1.55,56.1	-0.2314
S10	Aspherical surface	5.3468	0.3042		0.6659
						S11	Aspherical surface	4.0841	1.0219	1.55,56.1	-3.2544
S12	Aspherical surface	36.5798	0.1664		-99.0000
						S13	Spherical surface	All-round	0.3000	1.52,64.2
S14	Spherical surface	All-round	3.5010
						S15	Spherical surface	All-round

Watch 35

Table 36 below shows the high-order term coefficients A of the aspherical surfaces S1-S12 of the aspherical lenses usable in this embodiment₄、A₆、A₈、A₁₀And A₁₂。

Flour mark	A4	A6	A8	A10	A12
						S1	3.4751E-04	3.3873E-05	1.7358E-05	-9.4867E-07	-3.9012E-07
S2	1.8340E-03	1.1546E-04	2.4561E-05	1.1743E-05	-4.5024E-06
						S3	-1.5826E-02	3.9492E-04	6.9305E-05	-1.2679E-06	-2.5760E-06
S4	-2.6253E-02	1.2392E-04	3.1684E-05	2.1565E-05	-6.0051E-06
						S5	-3.0881E-03	-3.8262E-04	7.2021E-05	1.0180E-05	-3.8558E-07
S6	-5.8771E-03	-4.7511E-04	-6.9471E-05	1.7755E-05	4.2560E-06
						S7	-3.6403E-03	-2.8311E-04	-2.2779E-04	-1.6777E-05	2.8065E-05
S8	-2.4762E-03	1.0435E-04	-2.2718E-04	-5.8781E-05	2.9307E-05
						S9	-1.7786E-03	-1.7484E-03	-3.6073E-04	5.8677E-05	-1.5186E-05
S10	-5.3958E-03	1.2324E-03	2.1823E-04	-4.4541E-05	-3.1605E-06
						S11	-6.7707E-03	8.3006E-04	8.0132E-05	1.4938E-05	-2.8605E-06
S12	-1.3508E-03	-7.9113E-04	9.1867E-05	6.7090E-06	7.4888E-07

Watch 36

Fig. 57 shows on-axis chromatic aberration curves of the imaging lens group of example 12, which represent the convergent focus deviations of light rays of different wavelengths after passing through the optical system. Fig. 58 shows an astigmatism curve representing a meridional field curvature and a sagittal field curvature of the imaging lens group of example 12. Fig. 59 shows distortion curves of the image pickup lens group of example 12, which represent values of distortion magnitudes in the case of different angles of view. Fig. 60 shows a chromatic aberration of magnification curve of the imaging lens group of example 12, which represents a deviation of different image heights on an image formation plane after light passes through the imaging lens group. As can be seen from the above and with reference to fig. 57 to 60, the image pickup lens group according to embodiment 12 is an image pickup lens group having high resolution and being miniaturized.

Example 13

An image pickup lens group according to embodiment 13 of the present application is described below with reference to fig. 61 to 65.

Fig. 61 is a schematic diagram showing the structure of an image pickup lens group of embodiment 13. The imaging lens group includes, in order from the object side to the image side, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens E6.

Table 37 below shows the effective focal lengths f1 to f6 of the first lens E1 to the sixth lens E6, the total effective focal length f of the image pickup lens group, the total length TTL of the image pickup lens group, and half of the maximum field angle HFOV of the image pickup lens group.

f1(mm)	5.62	f(mm)	10.70
				f2(mm)	-6.04	TTL(mm)	11.42
f3(mm)	-73.51	HFOV(deg)	16.4
				f4(mm)	6.96
f5(mm)	-9.66
				f6(mm)	57.67

Watch 37

Table 38 below shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens in the image pickup lens group in this embodiment.

Flour mark	Surface type	Radius of curvature	Thickness of	Material	Coefficient of cone
						OBJ	Spherical surface	All-round	All-round
STO	Spherical surface	All-round	-0.5613
						S1	Aspherical surface	3.2956	1.3738	1.55,56.1	-0.0930
S2	Aspherical surface	-38.7322	0.0500		50.0000
						S3	Aspherical surface	7.1222	1.1984	1.65,23.5	-0.2033
S4	Aspherical surface	2.3551	0.3692		-0.0632
						S5	Aspherical surface	4.2221	0.6000	1.55,56.1	-0.5252
S6	Aspherical surface	3.6287	0.8404		1.1756
						S7	Aspherical surface	-5.5661	1.3413	1.55,56.1	2.8700
S8	Aspherical surface	-2.4522	0.3111		-0.4436
						S9	Aspherical surface	-7.8074	0.6000	1.55,56.1	0.2977
S10	Aspherical surface	16.7357	0.0500		50.0000
						S11	Aspherical surface	8.0630	0.6561	1.65,23.5	-8.3463
S12	Aspherical surface	9.9609	0.2257		-56.0606
						S13	Spherical surface	Go to nothing	0.3000	1.52,64.2
S14	Spherical surface	Go to nothing	3.5006
						S15	Spherical surface	All-round

Watch 38

Table 39 below shows the high-order term coefficients A of the respective aspherical surfaces S1-S12 usable for the respective aspherical lenses in this embodiment₄、A₆、A₈、A₁₀And A₁₂。

Flour mark	A4	A6	A8	A10	A12
						S1	-6.0229E-04	-1.2169E-04	-2.0772E-06	-3.6413E-06	-1.0487E-06
S2	1.7141E-04	-1.3893E-04	-2.5853E-05	-2.3188E-07	1.3710E-07
						S3	-3.0434E-03	-2.8924E-05	2.0139E-05	4.5605E-06	1.5725E-06
S4	-5.0099E-03	-8.8054E-05	2.3640E-04	1.4229E-04	4.0746E-05
						S5	-1.8100E-03	1.0735E-03	4.5393E-04	1.2291E-04	-1.5569E-05
S6	1.5597E-03	3.1222E-03	8.9380E-04	9.3894E-05	-1.3190E-04
						S7	2.9860E-03	1.2284E-03	3.1085E-04	2.7340E-06	-7.5046E-05
S8	1.1433E-02	-8.5106E-04	-1.2377E-04	1.4322E-05	-1.7391E-05
						S9	2.8041E-03	3.3386E-04	-1.0026E-04	-3.2155E-05	1.2035E-05
S10	-9.3645E-03	4.2413E-05	1.7843E-05	4.8394E-06	-1.6324E-06
						S11	-8.5831E-03	4.7107E-04	8.0435E-05	-2.9914E-07	-2.8811E-06
S12	-6.5245E-03	5.2663E-04	3.7091E-05	-4.0703E-06	-6.7887E-07

Watch 39

Fig. 62 shows on-axis chromatic aberration curves of the imaging lens group of example 13, which represent the convergent focus deviations of light rays of different wavelengths after passing through the optical system. Fig. 63 shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the imaging lens group of example 13. Fig. 64 shows a distortion curve of the image pickup lens group of example 13, which represents values of distortion magnitudes in the case of different angles of view. Fig. 65 shows a chromatic aberration of magnification curve of the imaging lens group of example 13, which represents a deviation of different image heights on an image formation plane after light passes through the imaging lens group. In summary, and as can be seen with reference to fig. 62 to 65, the image pickup lens group according to embodiment 13 is an image pickup lens group having high resolution and being miniaturized.

Example 14

An image pickup lens group according to embodiment 14 of the present application is described below with reference to fig. 66 to 70.

Fig. 66 is a schematic diagram showing the structure of an image pickup lens group of embodiment 14. The imaging lens group includes, in order from the object side to the image side, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens E6.

The following table 40 shows effective focal lengths f1 to f6 of the first lens E1 to the sixth lens E6, a total effective focal length f of the image pickup lens group, a total length TTL of the image pickup lens group, and half HFOV of the maximum field angle of the image pickup lens group.

f1(mm)	7.06	f(mm)	10.70
				f2(mm)	-8.29	TTL(mm)	11.32
f3(mm)	8.04	HFOV(deg)	16.3
				f4(mm)	-8.44
f5(mm)	180.00
				f6(mm)	42.80

Watch 40

Table 41 below shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens in the image pickup lens group in this embodiment.

Table 41

Table 42 below shows the high-order term coefficients A of the aspherical surfaces S1-S12 of the aspherical lenses usable in this embodiment₄、A₆、A₈、A₁₀And A₁₂。

Flour mark	A4	A6	A8	A10	A12
						S1	-5.3331E-04	-2.1985E-04	-4.3033E-06	-1.2433E-05	-5.7798E-07
S2	-1.1211E-03	-4.4274E-04	-9.1357E-06	7.3989E-07	1.9689E-07
						S3	-8.8290E-03	5.7114E-04	6.8026E-05	9.8164E-06	-2.4886E-06
S4	-1.5980E-02	4.7830E-04	2.7351E-04	6.0189E-05	-1.4640E-06
						S5	-7.1454E-03	-1.8062E-03	3.4837E-04	1.1598E-04	1.2922E-05
S6	-9.0691E-03	-3.4096E-04	-1.0000E-05	3.9916E-05	-9.9225E-06
						S7	1.4026E-02	-1.5386E-03	-3.8933E-04	-3.2794E-05	-1.3688E-05
S8	-1.8129E-02	3.2705E-03	-3.3919E-04	-1.8087E-04	-1.0516E-05
						S9	-3.5146E-02	-6.2024E-04	3.8068E-04	-1.5322E-04	-4.2282E-05
S10	1.2275E-02	-1.7576E-03	-8.8156E-05	-6.9426E-06	8.4097E-06
						S11	2.5550E-03	1.2526E-04	-1.0423E-04	7.1334E-06	3.1318E-07
S12	-4.9652E-03	1.0320E-03	3.3460E-05	-2.8232E-05	2.5048E-06

Watch 42

Fig. 67 shows on-axis chromatic aberration curves of the imaging lens group of example 14, which represent the convergent focus deviations of light rays of different wavelengths after passing through the optical system. Fig. 68 shows an astigmatism curve representing a meridional field curvature and a sagittal field curvature of the imaging lens group of example 14. Fig. 69 shows distortion curves of the imaging lens group of example 14, which indicate values of distortion magnitudes for different angles of view. Fig. 70 shows a chromatic aberration of magnification curve of the imaging lens group of example 14, which represents a deviation of different image heights on an image formation plane after light passes through the imaging lens group. In summary, and as can be seen with reference to fig. 67 to 70, the image pickup lens group according to embodiment 14 is an image pickup lens group having high resolution and miniaturization.

Example 15

An image pickup lens group according to embodiment 15 of the present application is described below with reference to fig. 71 to 75.

Fig. 71 is a schematic diagram showing the structure of an image pickup lens group of embodiment 15. The imaging lens group includes, in order from the object side to the image side, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens E6.

Table 43 below shows the effective focal lengths f1 to f6 of the first lens E1 to the sixth lens E6, the total effective focal length f of the image pickup lens group, the total length TTL of the image pickup lens group, and half of the maximum field angle HFOV of the image pickup lens group.

Watch 43

Table 44 below shows the surface type, radius of curvature, thickness, material, and conic coefficient of each lens in the image pickup lens group in this embodiment.

Flour mark	Surface type	Radius of curvature	Thickness of	Material	Coefficient of cone
						OBJ	Spherical surface	All-round	All-round
S1	Aspherical surface	3.7545	1.0621	1.55,56.1	0.5705
						S2	Aspherical surface	195.9543	0.5892		-99.0000
S3	Aspherical surface	-25.3038	0.6000	1.65,23.5	49.5450
						S4	Aspherical surface	3.4073	0.5056		0.1237
S5	Aspherical surface	6.8058	0.7467	1.65,23.5	-6.6917
						S6	Aspherical surface	All-round	0.1054		-24.5000
STO	Spherical surface	All-round	0.0500
						S7	Aspherical surface	5.5861	1.1055	1.55,56.1	2.4793
S8	Aspherical surface	-9.7033	0.5613		17.0183
						S9	Aspherical surface	-8.8399	1.1237	1.55,56.1	7.0808
S10	Aspherical surface	-6.7869	0.6004		-11.6570
						S11	Aspherical surface	-2.5702	0.6000	1.65,23.5	0.4785
S12	Aspherical surface	-18.8995	0.0500		50.0000
						S13	Spherical surface	All-round	0.3000	1.55,56.1
S14	Spherical surface	All-round	3.5008
						S15	Spherical surface	All-round

Watch 44

Table 45 below shows the high-order term coefficients A of the aspherical surfaces S1-S12 of the aspherical lenses usable in this embodiment₄、A₆、A₈、A₁₀And A₁₂。

Flour mark	A4	A6	A8	A10	A12
						S1	-2.2307E-03	-1.9118E-04	-4.5142E-05	-5.1251E-06	-2.5730E-06
S2	5.7668E-03	-5.9566E-04	-1.1476E-04	-3.1332E-05	4.8629E-06
						S3	7.0305E-03	-1.0958E-03	-1.8096E-04	4.1997E-05	9.2451E-07
S4	-7.0107E-03	6.0212E-04	8.0690E-05	6.5540E-05	-2.7974E-07
						S5	-3.2055E-03	-5.4238E-04	5.9844E-04	3.2250E-05	-3.1130E-05
S6	1.0634E-03	-1.2644E-04	9.4318E-05	1.1325E-04	-4.0702E-05
						S7	-1.4788E-03	7.3604E-04	-1.9904E-04	-1.2754E-05	1.1968E-05
S8	-1.4283E-02	4.2983E-04	1.3696E-04	-6.5299E-06	1.4153E-05
						S9	-1.2785E-02	-2.0944E-03	1.2276E-04	2.2311E-04	-2.6827E-05
S10	-7.6866E-04	-2.9457E-03	-4.5209E-05	1.1999E-04	-1.6827E-05
						S11	-2.8545E-03	-8.4718E-04	2.4333E-04	3.1159E-05	2.0000E-05
S12	-9.7018E-03	1.4345E-03	-1.3216E-05	4.2883E-06	-6.0457E-07

TABLE 45

Fig. 72 shows on-axis chromatic aberration curves of the imaging lens group of example 15, which represent the convergent focus deviations of light rays of different wavelengths after passing through the optical system. Fig. 73 shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the imaging lens group of example 15. Fig. 74 shows a distortion curve of the image pickup lens group of example 15, which represents values of distortion magnitude in the case of different angles of view. Fig. 75 shows a chromatic aberration of magnification curve of the imaging lens group of example 15, which represents a deviation of different image heights on an image formation plane after light passes through the imaging lens group. As can be seen from the above and with reference to fig. 72 to 75, the image pickup lens group according to embodiment 15 is an image pickup lens group having high resolution and being miniaturized.

In summary, in the above examples 1 to 15, each conditional expression satisfies the conditions of the following table 46.

Conditions/examples	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
																HFOV	16.4	16.6	16.6	16.6	16.2	16.2	16.2	16.3	16.2	16.3	16.5	16.2	16.4	16.3	16.6
DT11/DT62	1.11	0.91	0.91	0.87	0.95	0.95	1.00	0.95	0.91	0.95	0.87	0.91	0.87	0.91	1.00
																BFL/TTL	0.41	0.29	0.30	0.29	0.33	0.36	0.34	0.35	0.35	0.34	0.34	0.36	0.35	0.38	0.33
CTmax/CTmin	2.96	2.50	2.42	2.15	2.00	1.93	1.93	2.03	2.32	2.07	2.50	2.40	2.28	2.47	1.87
																f1/f	0.51	0.57	0.58	0.59	0.79	0.96	0.86	0.64	0.77	0.68	0.52	1.16	0.53	0.66	0.65
f2/f4	-0.36	-0.48	-0.57	-1.34	-0.67	0.67	0.31	-0.80	0.30	-0.40	-0.94	-0.20	-0.87	0.98	-0.69
																\|R11\|/f	1.33	0.33	0.33	0.35	0.48	0.45	0.46	0.98	0.63	0.71	0.41	0.38	0.75	0.38	0.24
\|(R1-R4)/(R1+R4)\|	0.94	0.17	0.17	0.15	0.09	0.01	0.04	0.16	0.02	0.22	0.11	0.14	0.17	0.13	0.05
																TTL/f	1.05	1.08	1.08	1.08	1.08	1.07	1.06	1.07	1.08	1.06	1.06	1.04	1.07	1.06	1.08
f/f12	1.02	0.93	0.93	1.02	0.36	0.28	0.18	0.64	0.36	0.29	0.95	0.05	0.79	0.59	-0.26

TABLE 46

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims

1. An imaging lens group comprising, in order from an object side to an image side of the imaging lens group, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, and a sixth lens element,

the first lens has positive focal power, the object side surface of the first lens is a convex surface,

the second lens has negative focal power, the image side surface of the second lens is a concave surface,

the third lens, the fourth lens, the fifth lens and the sixth lens each have optical power,

the effective focal length f2 of the second lens and the effective focal length f4 of the fourth lens satisfy 0.2< | f2/f4| <1.5, and

a combined focal length f12 of the first lens and the second lens and an effective focal length f of the image pickup lens group satisfy f/f12< 1.2.

2. The imaging lens group of claim 1, wherein 0.25< BFL/TTL <0.5, the BFL being an on-axis distance of the sixth lens image-side surface to an imaging surface, the TTL being an on-axis distance of the first lens object-side surface to an imaging surface.

3. An imaging lens group according to claim 1 or 2, wherein 1.5< CTmax/CTmin <3.0, the CTmax being a maximum central thickness of the first to sixth lenses, and the CTmin being a minimum central thickness of the first to sixth lenses.

4. An imaging lens group according to claim 1 or 2, wherein 0.5 ≦ f1/f <1.2, wherein f1 is an effective focal length of the first lens, and wherein f is an effective focal length of the imaging lens group.

5. The imaging lens group of claim 1 or 2, wherein 0.8< DT11/DT62<1.2, the DT11 being the maximum effective radius of the object-side surface of the first lens, the DT62 being the maximum effective radius of the image-side surface of the sixth lens.

6. The imaging lens group of claim 1 or 2, wherein |/f |/R11 | ≦ 1.5, the R11 is a radius of curvature of the sixth lens object-side surface, and the f is an effective focal length of the imaging lens group.

7. The imaging lens group of claim 1 or 2, wherein | (R1-R4)/(R1+ R4) | ≦ 1.0, the R1 is a radius of curvature of the object-side surface of the first lens, and the R4 is a radius of curvature of the image-side surface of the second lens.

8. The imaging lens group of claim 2, wherein TTL/f ≦ 1.1, where TTL is an on-axis distance from the first lens object-side surface to an imaging surface, and f is an effective focal length of the imaging lens group.

9. The imaging lens group according to claim 1 or 2, wherein HFOV <20 °, which is half of the maximum field angle of the imaging lens group.

10. An image capturing lens assembly including, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, and a sixth lens element,

the curvature radius R11 of the object side surface of the sixth lens and the effective focal length f of the image pickup lens group satisfy | R11|/f ≦ 1.5,

the on-axis distance TTL from the object side surface of the first lens to the imaging surface and the effective focal length f of the camera lens group meet the condition that TTL/f is less than or equal to 1.1,

a combined focal length f12 of the first lens and the second lens and an effective focal length f of the image pickup lens group satisfy f/f12<1.2, an

The effective focal length f2 of the second lens and the effective focal length f4 of the fourth lens satisfy 0.2< | f2/f4| < 1.5.

11. The imaging lens group of claim 10, wherein | (R1-R4)/(R1+ R4) | ≦ 1.0, the R1 being a radius of curvature of the first lens object-side surface, the R4 being a radius of curvature of the second lens image-side surface.

12. The imaging lens group according to claim 10,

the first lens has positive focal power, and the object side surface of the first lens is a convex surface;

the second lens has negative focal power, and the image side surface of the second lens is a concave surface; and

the third lens, the fourth lens, the fifth lens and the sixth lens each have optical power.

13. The imaging lens group of claim 10, wherein 0.25< BFL/TTL <0.5, the BFL being an on-axis distance of the sixth lens image-side surface to an imaging surface, the TTL being an on-axis distance of the first lens object-side surface to an imaging surface.

14. The imaging lens group of claim 10, wherein the maximum effective radius DT11 of the first lens object side surface and the maximum effective radius DT62 of the sixth lens image side surface satisfy 0.8< DT11/DT62< 1.2.

15. The imaging lens group according to claim 10, wherein 1.5< CTmax/CTmin <3.0, the CTmax being a maximum central thickness of the first to sixth lenses, and the CTmin being a minimum central thickness of the first to sixth lenses.

16. The imaging lens group of claim 10, wherein 0.5 ≦ f1/f <1.2, the f1 being an effective focal length of the first lens, the f being an effective focal length of the imaging lens group.

17. The imaging lens group of claim 10, wherein HFOV <20 °, which is half of the maximum field angle of the imaging lens group.