CN114326057A

CN114326057A - Day and night type athermalized high-definition glass-plastic hybrid lens with large aperture of 8mm

Info

Publication number: CN114326057A
Application number: CN202111614273.1A
Authority: CN
Inventors: 周欧; 殷海明
Original assignee: Dongguan Changyi Photoelectric Co ltd
Current assignee: Dongguan Changyi Photoelectric Co ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-04-12

Abstract

The invention discloses a day and night type athermalized high-clarity glass-plastic hybrid lens with a large aperture of 8mm, which defines the surface of one side of a lens, which is adjacent to an object plane, as an object side surface, and the surface of one side of the lens, which is adjacent to an image plane, as an image side surface, and sequentially comprises the following components from the object side to the image side along the optical axis of the lens: a first lens which is an aspheric plastic lens with negative focal power; a second lens which is an aspheric plastic lens with positive focal power; the third lens is a spherical glass lens with positive focal power; the fourth lens is an aspheric plastic lens with negative focal power; and the fifth lens is an aspheric plastic lens with positive focal power. This day and night type of 8mm big light ring does not have high clear glass of heat moulds hybrid lens adopts 1 piece of spherical glass and 5 pieces of aspheric surface plastics to mix the combination, and aperture value F # can reach 1.3, can realize 24 hours all-weather high definition control, and it is clear to actually shoot the picture at high temperature +80 ℃ and low temperature-40 ℃, in the manufacturability, each lens is insensitive, and lens face type is simple and easy to be made, has higher price/performance ratio.

Description

Day and night type athermalized high-definition glass-plastic hybrid lens with large aperture of 8mm

Technical Field

The invention relates to the technical field of optical imaging, in particular to a day and night type athermalized high-definition glass-plastic hybrid lens with a large aperture of 8 mm.

Background

In recent years, the development of the security monitoring field is better and better, a plurality of series of products are already put out by the monitoring lens aiming at different use purposes or environments, people pursue the high performance of the lens and the lowest cost of the lens, and the monitoring camera with high definition pixels and low cost gradually occupies the market in the future. The existing lens in the market has the problems of poor image quality and high cost, and the performance and the cost of the lens are to be improved; aiming at the defects of the prior art, the day and night type athermalized high-definition glass-plastic hybrid lens with the large aperture of 8mm is provided.

Disclosure of Invention

The present invention is directed to overcoming the above-mentioned deficiencies and providing a solution to at least one of the problems set forth above.

The utility model provides a day and night type does not have high clear glass of heat and moulds hybrid lens of 8mm big light ring, defines the surface that lens is close to object plane one side and is the object side, and the surface that lens is close to image plane one side is the image side, its characterized in that, includes in proper order from the thing side to the image side along the camera lens optical axis:

the first lens (1) is an aspheric plastic lens with negative focal power, and the object side surface of the first lens is a convex surface while the image side surface of the first lens is a concave surface;

the second lens (2) is an aspheric plastic lens with positive focal power, and the object side surface of the second lens is a concave surface while the image side surface is a convex surface;

an aperture stop (10);

the third lens (3) is a spherical glass lens with positive focal power, and the object side surface of the third lens is a convex surface while the image side surface of the third lens is a convex surface;

the fourth lens (4) is an aspheric plastic lens with negative focal power, and the object side surface of the fourth lens is a concave surface while the image side surface of the fourth lens is a concave surface;

a fifth lens (5) which is an aspheric plastic lens with positive focal power, and the object side surface of the fifth lens is a convex surface, and the image side surface of the fifth lens is a convex surface;

the sixth lens (6) is an aspheric plastic lens, and the object side surface of the sixth lens is a convex surface while the image side surface of the sixth lens is a concave surface;

the optical filter (7), the optical filter (7) is made of H-K9L;

a protective glass (8) integrated on the image-capturing element (9);

an image pickup element (9);

the ratio of the focal length of each lens of the lens to the total focal length of the system meets the following conditions:

1.93≤|f1/f|≤3.64；

1.60≤|f2/f|≤2.64；

1.09≤|f3/f|≤1.51；

0.45≤|f4/f|≤0.54；

0.60≤|f5/f|≤0.68；

3.00≤|f6/f|≤144.26；

in the relation, "f" is the focal length of the lens optical system, "f 1" is the focal length of the first lens (1), "f 2" is the focal length of the second lens (2), and so on.

Preferably, the focal length, refractive index, and radius of curvature of the first lens (1) to the sixth lens (6) satisfy the following conditions:

f1

-28.67~-15.37

ND1

1.50~1.55

R11

+3.83~+4.69

R12

+2.26~+2.82

f2

+13.03~+20.91

ND2

1.60~1.66

R21

-10.50~-4.86

R22

-5.68~-4.19

f3

+8.69~+12.16

ND3

1.43~1.60

R31

+6.49~+8.32

R32

-106.01~-18.76

f4

-4.34~-3.56

ND4

1.60~1.66

R41

-605.31~-21.85

R42

+2.61~+2.82

f5

+4.85~+5.40

ND5

1.50~1.55

R51

+3.49~+3.88

R52

-11.14~-5.64

f6

-1839.88~+1151.14

ND5

1.60~1.66

R51

+4.47~+4.92

R52

+4.05~+6.28

in the above table, "f 1" is the focal length of the first lens (1), "ND 1" is the refractive index of the first lens (1), "R11, R12" is the front and rear surface curvature radius of the first lens (1), "f 2" is the focal length of the second lens (2), "ND 2" is the refractive index of the second lens (2), "R21, R22" is the front and rear surface curvature radius of the second lens (2), "f 3" is the focal length of the third lens (3), "ND 3" is the refractive index of the third lens (3), "R31, R32" is the front and rear surface curvature radius of the third lens (3), "f 4" is the focal length of the fourth lens (4), "ND 4" is the refractive index of the fourth lens (4), "R41, R42" is the front and rear surface curvature radius of the fourth lens (4), "f 6" is the focal length of the fifth lens (5), "5" is the front and "R51 is the front and rear surface curvature radius of the fifth lens (51), "f 6" is the focal length of the sixth lens (6), "ND 6" is the refractive index of the sixth lens (6), "R61, R62" are the front and rear surface radii of curvature of the sixth lens (6), "indicates that the direction is negative, and so on.

Preferably, IC/TTL is more than or equal to 0.28;

4.38≤OBFL/TTL≤5.82；

in the relational expression, TTL is the total length of the lens optical system; OBFL is the optical rear intercept of the lens system, namely the distance from the point, closest to the image surface, of the image side surface of the sixth lens (6) to the image surface; IC is the full image height of the lens system.

Preferably, the aperture of the lens is F #, and the requirement that F #, is more than or equal to 1.30, and the total length of the lens optical system is TTL, and the requirement that TTL is less than or equal to 22.5 mm.

Preferably, the aspheric surfaces of the first lens (1), the second lens (2), the fourth lens (4), the fifth lens (5) and the sixth lens (6) are all defined by the following equation of even aspheric surfaces:

Z=

in the formula, k is a conic coefficient of a conic surface, r is a lens height, c is a lens curvature, and A-G are coefficients of 4 th, 6 th, 8 th, 10 th, 12 th, 14 th and 16 th order terms of an aspheric polynomial.

Preferably, the maximum distance AC4 on the central axes of the fourth lens (4) and the fifth lens (5) is less than or equal to 0.23 mm.

Compared with the prior art, the invention has the beneficial effects that: the day and night type athermalized high-definition glass-plastic hybrid lens with the large aperture of 8mm is adopted, so that the invention aims to: compared with the existing lens in the market, the lens has the advantages of high pixel and low cost, the invention adopts the mixed combination of 1 piece of spherical glass and 5 pieces of non-spherical plastic, corrects the aberration of the system to the maximum extent, has the characteristics of excellent performance, small volume, light weight, good performance and low cost, and can be matched with an 8MP chip through reasonable lens material selection, focal power distribution and optical design optimization, thereby realizing 24-hour all-weather high-definition monitoring.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of an optical structure according to a first embodiment of the present invention;

FIG. 2 is a schematic diagram of an optical path structure according to a first embodiment of the present invention;

FIG. 3 is a schematic view of an optical structure according to a second embodiment of the present invention;

FIG. 4 is a schematic diagram of an optical path structure according to a second embodiment of the present invention;

in the figure: a first lens 1; a second lens 2; a third lens 3; a fourth lens 4; a fifth lens 5; a sixth lens 6; an optical filter 7; a cover glass 8; an image pickup element 9; an aperture stop 10.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, an embodiment of the present invention provides a technical solution: an 8mm large-aperture day-night athermalized high-definition glass-plastic hybrid lens, wherein a surface of a lens adjacent to an object plane is an object side surface, and a surface of the lens adjacent to an image plane is an image side surface, as shown in fig. 1, sequentially comprising, from an object side to an image side along a lens optical axis:

a first aspheric plastic lens 1 with negative focal power, the object side surface of which is convex and the image side surface of which is concave;

a second aspherical plastic lens 2 having a positive refractive power, which has a concave object-side surface and a convex image-side surface;

the third spherical glass lens 3 with positive focal power has a convex object-side surface and a convex image-side surface;

a fourth aspherical plastic lens 4 having a negative refractive power, which has a concave object-side surface and a concave image-side surface;

a fifth aspherical plastic lens 5 having a positive refractive power, which has a convex object-side surface and a convex image-side surface;

the sixth lens element 6 is an aspheric plastic lens with a convex object-side surface and a concave image-side surface; between the second lens 2 and the third lens 3 is an aperture stop 10.

In order to enable an optical system to have better performance, in the design process, lens materials are reasonably selected, focal lengths of all lenses are reasonably distributed, the optical system is reasonably optimized, performance of the optical system is finally optimized, the imaging quality of the optical system is affected by the existence of aberration of the optical system generally, aberration correction is the key point of the optimized optical system, and various methods for correcting the aberration are provided, for example, lenses with different refractive indexes and larger abbe numbers are selected to be matched for use, chromatic aberration and spherical aberration can be eliminated to a certain degree, and the focal lengths and shapes of all lenses are reasonably distributed and optimized, and the aberration of the system can also be corrected.

Referring to fig. 1, in the embodiment of the present invention, the focal length of the first lens 1 is f1, the focal length of the second lens 2 is f2, the focal length of the third lens 3 is f3, the focal length of the fourth lens 4 is f4, the focal length of the fifth lens 5 is f5, the focal length of the sixth lens 6 is f6, the focal length of the entire lens is f, and the ratio of each lens to the total focal length of the system satisfies the following conditions:

1.93≤|f1/f|≤3.64；

1.60≤|f2/f|≤2.64；

1.09≤|f3/f|≤1.51；

0.45≤|f4/f|≤0.54；

0.60≤|f5/f|≤0.68；

3.00≤|f6/f|≤144.26；

the first lens of the embodiment of the invention adopts a lens with a meniscus negative focal power, the convex surface of which faces to the object space, and the lens has the function of quickly converging light rays, the abbe numbers of the first lens 1, the third lens 3 and the fifth lens 5 are more than 55.7, and the abbe numbers of the second lens 2, the fourth lens 4 and the sixth lens 6 are less than 24, so that the matching can reduce chromatic aberration, and in consideration of the problems of aberration and balance temperature drift of an optical system, the focal length, the material and the R value of each lens respectively meet the following conditions:

f1

-28.67~-15.37

ND1

1.50~1.55

R11

+3.83~+4.69

R12

+2.26~+2.82

f2

+13.03~+20.91

ND2

1.60~1.66

R21

-10.50~-4.86

R22

-5.68~-4.19

f3

+8.69~+12.16

ND3

1.43~1.60

R31

+6.49~+8.32

R32

-106.01~-18.76

f4

-4.34~-3.56

ND4

1.60~1.66

R41

-605.31~-21.85

R42

+2.61~+2.82

f5

+4.85~+5.40

ND5

1.50~1.55

R51

+3.49~+3.88

R52

-11.14~-5.64

f6

-1839.88~+1151.14

ND5

1.60~1.66

R51

+4.47~+4.92

R52

+4.05~+6.28

in the above table, "f 1" is a focal length of the first lens 1, "ND 1" is a refractive index of the first lens 1, "R11, R12" is front and rear surface curvature radii of the first lens 1, "f 2" is a focal length of the second lens 2, "ND 2" is a refractive index of the second lens 2, "R21, R22" is a front and rear surface curvature radius of the second lens 2, "f 3" is a focal length of the third lens 3, "ND 3" is a refractive index of the third lens 3, "R31, R32" is a front and rear surface curvature radius of the third lens 3, "f 4" is a focal length of the fourth lens 4, "ND 4" is a refractive index of the fourth lens 4, "R41, R42" is a front and rear surface curvature radius of the fourth lens 4, "f 5" is a focal length of the fifth lens 5, "ND 5" is a refractive index of the fifth lens 5, "R51, R52" is a front and rear surface curvature radius of the fifth lens 5, "f 6" is a focal length of the sixth lens 856, "ND 5" is a refractive index of the sixth lens 6, "R61, R62" are front and rear surface curvature radii of the sixth lens 6, "-" sign indicates that the direction is negative, and so on.

The total optical length of the lens system is TTL, the optical rear intercept of the lens system is OBFL, namely the distance from the point, closest to the image plane, of the image side surface of the sixth lens to the image plane, the total image height of the lens system is IC, and the total image height of the lens system and the image side surface of the sixth lens meet the following relations:

IC/TTL≥0.28；

4.38≤OBFL/TTL≤5.82；

the aperture of the embodiment of the invention is F #, and the requirement that F #, is more than or equal to 1.30 is met, the optical total length of the lens system is TTL, and the requirement that TTL is less than or equal to 22.5mm is met.

The distances among the central axes of the third lens 3, the fourth lens 4, the fifth lens 5 and the sixth lens 6 are relatively close, and the maximum distance AC3 between the central axes of the fourth lens 4 and the fifth lens 5 is less than or equal to 0.23 mm.

Referring to fig. 1 and fig. 2, which are respectively an optical structure schematic diagram and an optical path structure schematic diagram of a first embodiment of the present invention, the third lens 3 is a spherical glass surface, the first lens 1, the second lens 2, the fourth lens 4, the fifth lens 5, and the sixth lens 6 are aspheric plastic surfaces, a total focal length F =8.00mm, and an aperture F # = 1.30.

In the following table, the Number of optical surfaces (Surface Number) in order from the object side to the image side, the radius of curvature R (unit: mm) of each lens, the central thickness d (unit: mm) of each lens, the refractive index (ND) and the abbe constant (VD) of each lens, and the aspheric K value (conc) of each lens are listed in the first embodiment of the present invention.

Watch 1

Number of noodles	Radius of curvature R	Center thickness d	Refractive index ND	Abbe constant VD	K
							1	4.31	2.07	1.53	55.7	-0.71
2	2.45	3.97			-0.91
						3	-7.71	1.36	1.64	22.5	-0.42
4	-4.62	-0.80			-5.41
						5 (diaphragm)	Infinity	1.37
6	8.32	2.23	1.59	68.3
						7	-20.86	0.22
8	-47.35	1.05	1.63	23.9	158.28
						9	2.67	0.11			-4.45
10	3.70	3.80	1.53	55.7	0.03
						11	-6.30	0.23			-3.00
12	4.56	1.40	1.63	23.9	0.74
						13	4.29	2.20			0.49
14	Infinity	0.61	1.51	64.2
						15	Infinity	2.46

In table one, the surface numbers are numbered according to the surface order of the respective lenses of embodiment one, where "1" represents the front surface of the first lens 1, "2" represents the rear surface of the first lens 1, and so on; the radius of curvature represents the degree of curvature of the lens surface, positive values represent the surface curving to the image plane side, and negative values represent the surface curving to the object plane side, wherein "Infinity" represents the surface being planar; the thickness represents the central axial distance from the current surface to the next surface, the refractive index represents the deflection capability of the current lens material to light rays, and the Abbe number represents the dispersion characteristic of the current lens material to the light rays; the K value represents the magnitude of the best fitting conic coefficient for the aspheric surface.

The aspheric surfaces of the first lens element 1, the second lens element 2, the fourth lens element 4, the fifth lens element 5 and the sixth lens element 6 according to the first embodiment of the present invention can be defined by the following equation of even aspheric surfaces:

Z=

in the formula, k is conic coefficient, r is lens height, c is lens curvature, and A-G are coefficients of 4 th order, 6 th order, 8 th order, 10 th order, 12 th order, 14 th order and 16 th order of aspheric polynomial.

The following two lists the coefficients of the aspheric surfaces of the optical surfaces of example one of the present invention:

watch two

Number of noodles

A

B

C

D

E

F

G

1

-1.48E-03

-1.03E-04

3.17E-07

1.29E-07

2.92E-09

-1.57E-10

-3.34E-13

2

-1.27E-03

-2.78E-04

-1.17E-05

2.86E-06

1.19E-07

-3.45E-08

1.87E-09

3

1.16E-03

-1.19E-04

-3.95E-06

-6.36E-07

9.57E-08

-1.77E-09

2.96E-11

4

-3.79E-03

3.41E-04

-3.67E-05

1.29E-06

4.87E-08

-5.68E-09

1.47E-10

8

-8.79E-03

2.34E-03

-3.95E-04

4.52E-05

-3.19E-06

1.21E-07

-1.79E-09

9

1.09E-04

-1.61E-04

8.92E-05

1.75E-06

-3.61E-06

4.41E-07

-1.52E-08

10

-7.54E-03

3.57E-04

-1.32E-04

6.50E-05

-1.40E-05

1.29E-06

-4.29E-08

11

9.92E-04

2.65E-04

-2.97E-05

-4.50E-08

-1.27E-07

3.90E-08

-1.96E-09

12

-5.58E-03

4.21E-04

-2.04E-05

-2.23E-06

-6.73E-08

3.44E-08

-2.10E-09

13

-8.62E-03

7.08E-04

-1.09E-05

-2.65E-06

-1.58E-07

2.01E-08

4.09E-10

Referring to fig. 3 and 4, which are respectively an optical structure diagram and an optical path structure diagram of the second embodiment of the present invention, the third lens 3 is a spherical glass surface, the first lens 1, the second lens 2, the fourth lens 4, the fifth lens 5 and the sixth lens 6 are aspheric plastic surfaces, the total focal length of the system is 8.00mm, and the aperture value is 1.60.

In the following third embodiment, the Number of optical surfaces (Surface Number) in order from the object side to the image side, the radius of curvature R (unit: mm) of each lens, the central thickness d (unit: mm) of each lens, the refractive index (ND) and the abbe constant (VD) of each lens, and the aspheric K value (conc) of each lens are listed.

Watch III

Number of noodles	Radius of curvature R	Center thickness d	Refractive index ND	Abbe constant VD	K
							1	4.49	1.90	1.53	55.7	-0.69
2	2.62	3.56			-0.73
						3	-5.99	2.12	1.64	22.5	0.57
4	-4.38	-1.01			-4.00
						5 (diaphragm)	Infinity	1.23
6	7.58	2.14	1.59	68.3
						7	-42.23	0.10
8	-138.93	1.41	1.63	23.9	26.67
						9	2.79	0.11			-4.82
10	3.83	3.97	1.53	55.7	0.06
						11	-6.01	0.05			-9.50
12	4.60	0.85	1.63	23.9	-0.05
						13	4.10	2.00			-0.16
14	Infinity	0.61	1.51	64.2
						15	Infinity	3.61

In table three, the surface numbers are numbered according to the surface order of the respective lenses of embodiment two, where "1" represents the front surface of the first lens 1, "2" represents the rear surface of the first lens 1, and so on; the radius of curvature represents the degree of curvature of the lens surface, positive values represent the surface curving to the image plane side, and negative values represent the surface curving to the object plane side, wherein "Infinity" represents the surface being planar; the thickness represents the central axial distance from the current surface to the next surface, the refractive index represents the deflection capability of the current lens material to light rays, and the Abbe number represents the dispersion characteristic of the current lens material to the light rays; the K value represents the magnitude of the best fitting conic coefficient for the aspheric surface.

The aspheric surfaces of the first lens element 1, the second lens element 2, the fourth lens element 4, the fifth lens element 5 and the sixth lens element 6 according to the second embodiment of the present invention can be defined by the following equation of even aspheric surfaces:

Z=

The following four lists the coefficients of the aspheric surfaces of the optical surfaces of example two of the present invention:

watch four

Number of noodles

A

B

C

D

E

F

G

1

-1.43E-03

-6.95E-05

9.38E-07

-6.57E-08

1.77E-08

-7.84E-10

1.09E-11

2

-2.24E-03

-2.45E-04

1.41E-05

-3.99E-06

7.15E-07

-5.00E-08

1.29E-09

3

6.76E-04

1.06E-06

-1.01E-05

-7.72E-07

3.11E-07

-4.15E-08

1.52E-09

4

-3.87E-03

3.64E-04

-3.52E-05

1.37E-06

6.31E-08

-1.12E-08

3.65E-10

8

-8.31E-03

2.33E-03

-3.99E-04

4.52E-05

-3.18E-06

1.16E-07

-1.43E-09

9

7.55E-06

-1.62E-04

1.01E-04

6.73E-07

-3.86E-06

4.65E-07

-1.66E-08

10

-6.93E-03

3.84E-04

-1.39E-04

6.62E-05

-1.37E-05

1.23E-06

-4.04E-08

11

1.76E-04

3.83E-05

-4.15E-05

1.48E-05

-2.22E-06

1.86E-07

-6.51E-09

12

-9.28E-03

4.20E-04

-6.83E-05

1.59E-05

-1.62E-06

7.24E-08

-7.71E-11

13

-1.58E-02

1.87E-03

-3.10E-04

4.62E-05

-4.06E-06

1.59E-07

5.99E-11

In summary, the following steps: the day and night type athermalized high-clear glass-plastic hybrid lens with the large aperture of 8mm adopts a mixed combination of 1 piece of spherical glass and 5 pieces of aspheric plastic, has a simple structure, is insensitive to each lens under the condition of achieving the same quality in the industry, is simple and easy to manufacture, has a relatively low processing cost on the market, has a very high cost performance, and can realize the characteristics of small volume, light weight, good performance and low cost.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. The utility model provides a day and night type does not have high clear glass of heat and moulds hybrid lens of 8mm big light ring, defines the surface that lens is close to object plane one side and is the object side, and the surface that lens is close to image plane one side is the image side, its characterized in that, includes in proper order from the thing side to the image side along the camera lens optical axis:

an aperture stop (10);

the optical filter (7), the optical filter (7) is made of H-K9L;

a protective glass (8) integrated on the image-capturing element (9);

an image pickup element (9);

1.93≤|f1/f|≤3.64；

1.60≤|f2/f|≤2.64；

1.09≤|f3/f|≤1.51；

0.45≤|f4/f|≤0.54；

0.60≤|f5/f|≤0.68；

3.00≤|f6/f|≤144.26；

2. The day-night type athermalized high-definition glass-plastic hybrid lens with a large aperture of 8mm as claimed in claim 1, wherein the focal length, refractive index and radius of curvature of the first lens (1) to the sixth lens (6) respectively satisfy the following conditions:

f1 -28.67~-15.37 ND1 1.50~1.55 R11 +3.83~+4.69 R12 +2.26~+2.82 f2 +13.03~+20.91 ND2 1.60~1.66 R21 -10.50~-4.86 R22 -5.68~-4.19 f3 +8.69~+12.16 ND3 1.43~1.60 R31 +6.49~+8.32 R32 -106.01~-18.76 f4 -4.34~-3.56 ND4 1.60~1.66 R41 -605.31~-21.85 R42 +2.61~+2.82 f5 +4.85~+5.40 ND5 1.50~1.55 R51 +3.49~+3.88 R52 -11.14~-5.64 f6 -1839.88~+1151.14 ND5 1.60~1.66 R51 +4.47~+4.92 R52 +4.05~+6.28

3. The day-night type athermal high-definition glass-plastic hybrid lens with 8mm large aperture as claimed in claim 1,

IC/TTL≥0.28；

4.38≤OBFL/TTL≤5.82；

4. The day and night type athermalized high-definition glass-plastic hybrid lens with 8mm large aperture as claimed in claim 1, wherein the aperture of the lens is F #, which satisfies F # > 1.30, the total length of the lens optical system is TTL, which satisfies TTL ≤ 22.5 mm.

5. The day-night athermalized high-definition glass-plastic hybrid lens with 8mm large aperture according to claim 1, wherein the aspheric surfaces of the first lens (1), the second lens (2), the fourth lens (4), the fifth lens (5) and the sixth lens (6) are all defined by the following equation of even aspheric surface:

Z=

6. The day-night type athermalized high-definition glass-plastic hybrid lens with the large aperture of 8mm as claimed in claim 1, wherein the maximum interval AC4 between the central axes of the fourth lens (4) and the fifth lens (5) is not less than 0.23 mm.