CN110412719A

CN110412719A - Optical lens

Info

Publication number: CN110412719A
Application number: CN201810397941.1A
Authority: CN
Inventors: 谢前森; 陈雨曦; 姚波; 王东方
Original assignee: Ningbo Sunny Opotech Co Ltd
Current assignee: Ningbo Sunny Opotech Co Ltd
Priority date: 2018-04-28
Filing date: 2018-04-28
Publication date: 2019-11-05
Anticipated expiration: 2038-04-28
Also published as: CN110412719B

Abstract

This application discloses a kind of optical lens, the optical lens along optical axis by object side to image side sequentially can include: the first lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens.Wherein, the first lens can have negative power, and object side is convex surface, and image side surface is concave surface；Second lens can have negative power, and object side is concave surface, and image side surface is convex surface；The third lens can have positive light coke, and object side is convex surface, and image side surface is concave surface；4th lens can have positive light coke, and object side and image side surface are convex surface；5th lens can have negative power, and object side is concave surface, and image side surface is convex surface；And the 6th lens can have negative power, object side and image side surface are concave surface.According to the optical lens of the application, it can be achieved that the beneficial effects such as miniaturization, small-bore, the high pixel in front end.

Description

Optical lens

Technical field

This application involves a kind of optical lens, more specifically, this application involves a kind of optical lens including six-element lens.

Background technique

On-vehicle lens are needed due to the limitation of application mounted in some fixation position of car, and require camera lens too big, Influence the beautiful situation of car.Therefore the miniaturization of on-vehicle lens is most important.The development of on-vehicle lens had been fade-in good in recent years Border, requirement of the market for on-vehicle lens are gradually promoted；Whole development trend is but also promote the pixel of on-vehicle lens simultaneously It is very urgent.The high pixel vehicle-mounted lens of matching large chip are the market trends of entire on-vehicle lens.In general, chip size Increase, camera lens overall length also can scale up suitably, this seriously affects installing and using for on-vehicle lens, therefore match large chip but It is very crucial to reduce this of Lens technology.

Therefore, it is necessary to design a kind of to meet the property such as TTL under identical imaging surface shorter, miniaturization, small-bore, the high pixel in front end The optical lens of energy.

Summary of the invention

This application provides be applicable to vehicle-mounted installation, can at least overcome or part overcome it is in the prior art it is above-mentioned extremely The optical lens of a few defect.

The one aspect of the application provides such a optical lens, and the optical lens is along optical axis by object side to image side Sequentially can include: the first lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens.Wherein, first thoroughly Mirror can have negative power, and object side is convex surface, and image side surface is concave surface；Second lens can have negative power, object side For concave surface, image side surface is convex surface；The third lens can have positive light coke, and object side is convex surface, and image side surface is concave surface；4th thoroughly Mirror can have positive light coke, and object side and image side surface are convex surface；5th lens can have negative power, and object side is recessed Face, image side surface are convex surface；And the 6th lens can have negative power, object side and image side surface are concave surface.

In one embodiment, the 4th lens can be with the 5th lens gluing.

In one embodiment, at least one of the second lens, the third lens and the 6th lens can be aspherical Eyeglass.

In one embodiment, the center of the object side of the first lens to optical lens imaging surface on optical axis away from It can meet between TTL and the whole group focal length value F of optical lens: TTL/F≤4.

In one embodiment, the optics total length TTL of optical lens, picture corresponding to optical lens maximum field of view angle It can meet between high h and the maximum field of view angle FOV of optical lens: TTL/h/FOV≤0.025.

In one embodiment, conditional can be met: D/h/FOV≤0.02, wherein FOV is the maximum of optical lens Field angle；D is the maximum clear aperture of the first lens object side corresponding to optical lens maximum field of view angle；And h is optics Image height corresponding to camera lens maximum field of view angle.

In one embodiment, optical lens may also include the diaphragm being arranged between the third lens and the 4th lens.

The another aspect of the application provides such a optical lens, and the optical lens is along optical axis by object side to image side Sequentially can include: the first lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens.Wherein, first thoroughly Mirror can have negative power, and object side is convex surface, and image side surface is concave surface；Second lens, the 5th lens and the 6th lens With negative power；The third lens and the 4th lens can have positive light coke；And the 4th lens can with the 5th lens gluing, Wherein, the maximum of the optics total length TTL of optical lens, image height h and optical lens corresponding to optical lens maximum field of view angle It can meet between field of view angle FOV: TTL/h/FOV≤0.025.

In one embodiment, the object side of the second lens can be concave surface, and image side surface can be convex surface.

In one embodiment, the object side of the third lens can be convex surface, and image side surface can be concave surface.

In one embodiment, the object side of the 4th lens and image side surface can be convex surface.

In one embodiment, the object side of the 5th lens can be concave surface, and image side surface can be convex surface.

In one embodiment, the object side of the 6th lens and image side surface can be concave surface.

The application uses such as six-element lens, by the shape of optimal setting eyeglass, the light focus of each eyeglass of reasonable distribution Degree and balsaming lens etc. is formed, realizes under the high pixel of optical lens, miniaturization, identical imaging surface that TTL is shorter, balance color aberrations Deng at least one beneficial effect.

Detailed description of the invention

In conjunction with attached drawing, by the detailed description of following non-limiting embodiment, other features of the application, purpose and excellent Point will be apparent.In the accompanying drawings:

Fig. 1 is the structural schematic diagram for showing the optical lens according to the embodiment of the present application 1；

Fig. 2 is the structural schematic diagram for showing the optical lens according to the embodiment of the present application 2；And

Fig. 3 is the structural schematic diagram for showing the optical lens according to the embodiment of the present application 3.

Specific embodiment

Various aspects of the reference attached drawing to the application are made more detailed description by the application in order to better understand.It answers Understand, the only description to the illustrative embodiments of the application is described in detail in these, rather than limits the application in any way Range.In the specification, the identical element of identical reference numbers.Stating "and/or" includes associated institute Any and all combinations of one or more of list of items.

It should be noted that in the present specification, first, second, third, etc. statement is only used for a feature and another spy Sign distinguishes, without indicating any restrictions to feature.Therefore, without departing substantially from teachings of the present application, hereinafter The first lens discussed are also known as the second lens or the third lens, and it is glued saturating that the first balsaming lens is also known as second Mirror.

In the accompanying drawings, for ease of description, thickness, the size and shape of lens are slightly exaggerated.Specifically, attached drawing Shown in spherical surface or aspherical shape be illustrated by way of example.That is, spherical surface or aspherical shape are not limited to attached drawing Shown in spherical surface or aspherical shape.Attached drawing is merely illustrative and and non-critical drawn to scale.

Herein, near axis area refers to the region near optical axis.If lens surface is convex surface and does not define convex surface position When setting, then it represents that the lens surface is convex surface near axis area is less than；If lens surface is concave surface and does not define the concave surface position When, then it represents that the lens surface is concave surface near axis area is less than.Surface in each lens near object is known as object side, Surface in each lens near imaging surface is known as image side surface.

It will also be appreciated that term " comprising ", " including ", " having ", "comprising" and/or " including ", when in this theory It indicates there is stated feature, element and/or component when using in bright book, but does not preclude the presence or addition of one or more Other feature, component, assembly unit and/or their combination.In addition, ought the statement of such as at least one of " ... " appear in institute When after the list of column feature, entire listed feature is modified, rather than modifies the individual component in list.In addition, when describing this When the embodiment of application, " one or more embodiments of the application " are indicated using "available".Also, term " illustrative " It is intended to refer to example or illustration.

Unless otherwise defined, otherwise all terms (including technical terms and scientific words) used herein all have with The application one skilled in the art's is generally understood identical meaning.It will also be appreciated that term (such as in everyday words Term defined in allusion quotation) it should be interpreted as having and their consistent meanings of meaning in the context of the relevant technologies, and It will not be explained with idealization or excessively formal sense, unless clear herein so limit.

It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

The feature of the application, principle and other aspects are described in detail below.

Optical lens according to the application illustrative embodiments includes such as six lens with focal power, i.e., and first Lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens.This six lens along optical axis from object side to Image side sequential.

It can also further comprise the photosensitive member for being set to imaging surface according to the optical lens of the application illustrative embodiments Part.Optionally, the photosensitive element for being set to imaging surface can be photosensitive coupling element (CCD) or Complimentary Metal-Oxide semiconductor Element (CMOS).

First lens can have a negative power, and it can be concave surface that object side, which can be convex surface, image side surface,.First lens are set as The meniscus shape for being convex to object side can collect big field rays as much as possible, and light is made to enter rear optical system.Actually answering In, it is contemplated that on-vehicle lens outdoor mounted use environment, it can be in the bad weathers such as sleet, such bent moon for being convex to object side Shape design is conducive to the use of camera lens in harsh environment, such as is conducive to the landing of water droplet, reduces the influence to imaging.

Second lens can have negative power, and object side can be concave surface, and image side surface can be convex surface.Second lens can be by The light that one lens are collected is dissipated, and makes light smooth transition to rear optical system, biggish to reach last imaging surface Effect.

The third lens can have a positive light coke, and it can be concave surface that object side, which can be convex surface, image side surface,.The third lens can converge Caustic makes the light of diverging can smoothly enter into rear method, system, is conducive to reduction system overall length.

4th lens can have positive light coke, and object side and image side surface can be convex surface.

5th lens can have negative power, and object side can be concave surface, and image side surface can be convex surface.

6th lens can have negative power, and object side and image side surface are concave surface.The 6th last lens are set as Negative lens, can make by divergence of beam so that image height is bigger, to achieve the purpose that bigger chip can be matched, simultaneously also Other performances of camera lens can be taken into account.

In the exemplary embodiment, the light for limiting light beam can be set between such as the third lens and the 4th lens Door screen, to further increase the image quality of camera lens.When diaphragm to be set between the third lens and the 4th lens, before can collecting Light afterwards, effectively shortens optical system overall length, reduces the bore of front and back eyeglass.It should be understood that the position of diaphragm is not by above-mentioned The limitation of description, but can be set as needed in other positions.

As it is known to the person skilled in the art, balsaming lens can be used for reducing color difference to the maximum extent or eliminate color difference.In The reflection loss that image quality can be improved using balsaming lens in optical lens, reduce light energy, to promote the clear of lens imaging Clear degree.In addition, the use of balsaming lens can also simplify the linkage editor in camera lens manufacturing process.

In the exemplary embodiment, can by the way that the object side of the image side surface of the 4th lens and the 5th lens is glued, and By the 4th lens and the 5th lens combination at balsaming lens.It is saturating by introducing the gluing being made of the 4th lens and the 5th lens Mirror can help to eliminate color difference influence, reduce the curvature of field, correct coma；Meanwhile balsaming lens can be with residual fraction color difference with flat The whole color difference for the optical system that weighs.The airspace between two eyeglasses is omitted in the gluing of eyeglass, so that optical system overall is tight It gathers, meets system compact demand.Also, eyeglass gluing can reduce lens unit because group stand during generate inclination/ The tolerance sensitivities problem such as core shift.

In balsaming lens, preceding 4th lens have positive light coke, and posterior 5th lens have negative power, adopt With the collocation of positive and negative lenses focal power, is conducive to be transitioned into rear method, system again after further converging front light, subtract Tiny lens rear end bore/size reduces system overall length.

In the exemplary embodiment, the optics total length TTL of optical lens is (that is, from the object side of the first lens The heart to optical lens imaging surface in the distance on optical axis) and the whole group focal length value F of optical lens between meet TTL/F≤4, more It is desirable that can further satisfaction TTL/F≤3.5.Meet conditional TTL/F≤4, it can be achieved that camera lens small size performance.

In the exemplary embodiment, the optics total length TTL of optical lens, corresponding to optical lens maximum field of view angle TTL/h/FOV≤0.025 can be met between image height h and the maximum field of view angle FOV of optical lens, it is more desirable that can further expire Sufficient TTL/h/FOV≤0.02.Configuration in this way under identical imaging surface, has shorter TTL compared to other camera lenses.

In the exemplary embodiment, the maximum field of view angle FOV of optical lens, corresponding to optical lens maximum field of view angle It can meet between image height h corresponding to the maximum clear aperture D of first lens object side and optical lens maximum field of view angle: D/ H/FOV≤0.02, it is more desirable that D, h and FOV can further meet D/h/FOV≤0.01.Meet conditional D/h/FOV≤ 0.02, it is ensured that the front end of camera lens is small-bore.

In the exemplary embodiment, at least one of the second lens, the third lens and the 6th lens can be aspheric Face eyeglass.The characteristics of aspherical lens, is: being consecutive variations from center of lens to periphery curvature.With from center of lens to periphery Have the spheric glass of constant curvature different, aspherical lens have more preferably radius of curvature characteristic, have improve distort aberration and The advantages of improving astigmatic image error.After aspherical lens, the aberration occurred when imaging can be eliminated as much as possible, from And promote the image quality of camera lens.

According to the camera lens of such as six lens structures of use of the application, reaches large chip using specific framework and minimize The characteristics of, so that camera lens volume reduces, during the installation process without assembling obstacle, vehicle appearance is had substantially no effect on after mounting.Together When take into account the high imaging performance of camera lens.

However, it will be understood by those of skill in the art that without departing from this application claims technical solution the case where Under, the lens numbers for constituting camera lens can be changed, to obtain each result and advantage described in this specification.Although for example, It is described by taking six lens as an example in embodiment, but the optical lens is not limited to include six lens.If desired, The optical lens may also include the lens of other quantity.

The specific embodiment for being applicable to the optical lens of above embodiment is further described with reference to the accompanying drawings.

Embodiment 1

Referring to Fig. 1 description according to the optical lens of the embodiment of the present application 1.Fig. 1 is shown according to the embodiment of the present application 1 Optical lens structural schematic diagram.

As shown in Figure 1, optical lens is along optical axis from object side to sequentially including the first lens L1, the second lens at image side L2, the third lens L3, the 4th lens L4, the 5th lens L5 and the 6th lens L6.

First lens L1 is the meniscus lens with negative power, and object side S1 is convex surface, and image side surface S2 is concave surface.

Second lens L2 is the meniscus lens with negative power, and object side S3 is concave surface, and image side surface S4 is convex surface.Separately Outside, the second lens L2 is aspherical lens, and object side S3 and image side surface S4 are aspherical.

The third lens L3 is the meniscus lens with positive light coke, and object side S5 is convex surface, and image side surface S6 is concave surface.Separately Outside, the third lens L3 is aspherical lens, and object side S5 and image side surface S6 are aspherical.

4th lens L4 is the biconvex lens with positive light coke, and object side S8 is convex surface, and image side surface S9 is convex surface.The Five lens L5 are the meniscus lens with negative power, and object side S9 is concave surface, and image side surface S10 is convex surface.Wherein, the 4th thoroughly Mirror L4 and the 5th lens L5 gluing unit are at balsaming lens.

6th lens L6 is the biconcave lens with negative power, and object side S11 is concave surface, and image side surface S12 is concave surface. In addition, the 6th lens L6 is aspherical lens, object side S11 and image side surface S12 are aspherical.

Optionally, which may also include the optical filter L7 with object side S13 and image side surface S14 and has object side The protection lens L8 of face S15 and image side surface S16.Optical filter L7 can be used for correcting color error ratio.Protection lens L8 can be used for protecting Positioned at the image sensor chip of imaging surface IMA.Light from object sequentially passes through each surface S1 to S16 and is ultimately imaged and is being imaged On the S17 of face.

In the optical lens of the present embodiment, diaphragm STO can be set between the third lens L3 and the 4th lens L4 to mention High imaging quality.

Table 1 shows radius of curvature R, thickness T, refractive index Nd and the Abbe of each lens of the optical lens of embodiment 1 Number Vd, wherein radius of curvature R and the unit of thickness T are millimeter (mm).

Table 1

Face number	Radius of curvature R	Thickness T	Refractive index Nd	Abbe number Vd
					1	6.0000	1.0000	1.77	50
2	3.0000	2.2000
					3	-4.0000	1.3000	1.53	5 6
4	-45.0000	0.1000
					5	3.0000	2.0000	1.8	4 1
6	11.0000	0.2000
					STO	It is infinite	0.4000
8	11.0000	2.5000	1.77	5 0
					9	-2.0000	0.6000	1.85	24
10	-6.0000	1.8000
					11	-37.0000	2.5500	1.54	56
12	15.0000	0.6200
					13	It is infinite	0.5500	1.52	64
14	It is infinite	0.2000
					15	It is infinite	0.4000	1.52	64
16	It is infinite	0.6000
					IMA	It is infinite

The present embodiment uses six-element lens as an example, by each power of lens of reasonable distribution and face type, respectively Airspace between the center thickness of lens and each lens can make camera lens have miniaturization, high pixel, front end are small-bore etc. to have At least one of beneficial effect.Each aspherical face type Z is limited by following formula:

Wherein, Z be it is aspherical along optical axis direction when being highly the position of h, away from aspheric vertex of surface apart from rise；C is Aspherical paraxial curvature, c=1/R (that is, inverse that paraxial curvature c is upper 1 mean curvature radius R of table)；K is circular cone coefficient conic；A, B, C, D, E are high-order coefficient.The following table 2 show the aspherical lens surface S3 that can be used in embodiment 1, The circular cone coefficient k and high-order coefficient A, B, C, D and E of S4, S5, S6, S11 and S12.

Table 2

Face number

K

A

B

C

D

E

3

-0.2462

1.2594E-02

-1.8262E-03

2.9802E-04

-3.0326E-05

1.5461E-06

4

396.2385

3.7127E-04

2.9050E-04

3.4473E-04

-1.1878E-04

5.0000E-05

5

0.4507

-7.8933E-03

1.3215E-03

-2.2145E-04

1.3755E-05

-1.0659E-06

6

14.6115

9.9069E-03

-4.5683E-03

3.3637E-03

-9.9344E-04

1.2609E-04

11

-100.0000

-7.2928E-03

2.3877E-04

-4.5358E-05

3.0694E-06

-8.2340E-08

12

-100.0000

-2.5968E-03

-2.5287E-04

1.7718E-05

-7.4419E-07

2.1180E-08

The following table 3 give the whole group focal length value F of the optical lens of embodiment 1, optical lens optics total length TTL (that is, From distance on the center to the axis of imaging surface S17 of the object side S1 of the first lens L1), corresponding to optical lens maximum field of view angle The maximum clear aperture D and optical frames of the object side S1 of first lens L1 corresponding to image height h, optical lens maximum field of view angle The maximum field of view angle FOV of head.

Table 3

In the present embodiment, meet between the optics total length TTL of optical lens and the whole group focal length value F of optical lens TTL/F=3.460；Image height h and optical frames corresponding to the optics total length TTL of optical lens, optical lens maximum field of view angle Meet TTL/h/FOV=0.018 between the maximum field of view angle FOV of head；And maximum field of view angle FOV, the light of optical lens Learn the maximum clear aperture D and optical lens maximum view of the object side S1 of the first lens L1 corresponding to camera lens maximum field of view angle Meet D/h/FOV=0.008 between image height h corresponding to rink corner.

Embodiment 2

The optical lens according to the embodiment of the present application 2 is described referring to Fig. 2.In the present embodiment and following embodiment In, for brevity, by clipped description similar to Example 1.Fig. 2 shows the optics according to the embodiment of the present application 2 The structural schematic diagram of camera lens.

As shown in Fig. 2, optical lens is along optical axis from object side to sequentially including the first lens L1, the second lens at image side L2, the third lens L3, the 4th lens L4, the 5th lens L5 and the 6th lens L6.

The following table 4 show the radius of curvature R of each lens of the optical lens of embodiment 2, thickness T, refractive index Nd and Ah Shellfish number Vd, wherein radius of curvature R and the unit of thickness T are millimeter (mm).The following table 5, which is shown, can be used for aspheric in embodiment 2 The circular cone coefficient k and high-order coefficient A, B, C, D and E of face lens surface S3, S4, S5, S6, S11 and S12.The following table 6 gives The whole group focal length value F of the optical lens of embodiment 2, optical lens optics total length TTL (that is, from the object side of the first lens L1 Distance on the center of face S1 to the axis of imaging surface S17), image height h, optical lens corresponding to optical lens maximum field of view angle it is maximum The maximum clear aperture D of the object side S1 of first lens L1 corresponding to the field angle and maximum field of view angle FOV of optical lens.

Table 4

Table 5

Face number

K

A

B

C

D

E

3

-0.1439

1.0331E-02

-4.3841E-04

3.0468E-05

1.9873E-06

-1.3006E-07

4

1.7499

8.5476E-03

-1.1195E-03

3.1181E-04

-2.6584E-05

2.0394E-06

5

0.4340

-1.2323E-03

1.2229E-03

-5.7263E-04

1.3102E-04

-1.0531E-05

6

14.8881

4.6729E-03

-1.9989E-03

1.7405E-03

-5.3412E-04

7.5532E-05

11

-100.0000

-6.8586E-03

1.2939E-04

2.2605E-06

-8.2559E-06

4.2739E-07

12

-100.0000

-2.1321E-03

-2.6940E-04

2.2942E-05

-1.1337E-06

2.3916E-08

Table 6

Parameter	F(mm)	TTL(mm)	h(mm)	D(mm)	FOV(°)
						Numerical value	5.303	16.928	8.982	6.911	110

In the present embodiment, meet between the optics total length TTL of optical lens and the whole group focal length value F of optical lens TTL/F=3.192；Image height h and optical frames corresponding to the optics total length TTL of optical lens, optical lens maximum field of view angle Meet TTL/h/FOV=0.017 between the maximum field of view angle FOV of head；And maximum field of view angle FOV, the light of optical lens Learn the maximum clear aperture D and optical lens maximum view of the object side S1 of the first lens L1 corresponding to camera lens maximum field of view angle Meet D/h/FOV=0.007 between image height h corresponding to rink corner.

Embodiment 3

The optical lens according to the embodiment of the present application 3 is described referring to Fig. 3.In the present embodiment and following embodiment In, for brevity, by clipped description similar to Example 1.Fig. 3 shows the optics according to the embodiment of the present application 3 The structural schematic diagram of camera lens.

As shown in figure 3, optical lens is along optical axis from object side to sequentially including the first lens L1, the second lens at image side L2, the third lens L3, the 4th lens L4, the 5th lens L5 and the 6th lens L6.

The following table 7 show the radius of curvature R of each lens of the optical lens of embodiment 3, thickness T, refractive index Nd and Ah Shellfish number Vd, wherein radius of curvature R and the unit of thickness T are millimeter (mm).The following table 8, which is shown, can be used for aspheric in embodiment 3 The circular cone coefficient k and high-order coefficient A, B, C, D and E of face lens surface S3, S4, S5, S6, S11 and S12.The following table 9 is shown The whole group focal length value F of the optical lens of embodiment 3, optical lens optics total length TTL (that is, from the object side of the first lens L1 Distance on the center of face S1 to the axis of imaging surface S17), image height h, optical lens corresponding to optical lens maximum field of view angle it is maximum The maximum clear aperture D of the object side S1 of first lens L1 corresponding to the field angle and maximum field of view angle FOV of optical lens.

Table 7

Table 8

Face number

K

A

B

C

D

E

3

-0.5028

1.3183E-02

-1.9111E-03

3.2999E-04

-3.6776E-05

1.8596E-06

4

315.7521

3.0112E-03

-2.8315E-05

6.1807E-04

-1.8401E-04

1.8817E-05

5

0.5379

-8.4902E-03

1.7831E-03

-4.2101E-04

5.8910E-05

-5.3741E-06

6

15.0299

9.5165E-03

-5.8858E-03

4.7037E-03

-1.5196E-03

2.0443E-04

11

-100.0000

-9.3628E-03

3.5622E-04

-7.1093E-05

3.2689E-06

-7.2371E-08

12

-100.0000

-3.4668E-03

-1.5766E-04

9.5798E-06

-3.7466E-07

6.1682E-09

Table 9

Parameter	F(mm)	TTL(mm)	h(mm)	D(mm)	FOV(°)
						Numerical value	4.899	16.825	9.508	7.416	120

In the present embodiment, meet between the optics total length TTL of optical lens and the whole group focal length value F of optical lens TTL/F=3.434；Image height h and optical frames corresponding to the optics total length TTL of optical lens, optical lens maximum field of view angle Meet TTL/h/FOV=0.015 between the maximum field of view angle FOV of head；And maximum field of view angle FOV, the light of optical lens Learn the maximum clear aperture D and optical lens maximum view of the object side S1 of the first lens L1 corresponding to camera lens maximum field of view angle Meet D/h/FOV=0.007 between image height h corresponding to rink corner.

To sum up, embodiment 1 to embodiment 3 meets relationship shown in following table 10 respectively.

Table 10

Conditional/embodiment	1	2	3
				TTL/F	3.460	3.192	3.434
TTL/h/FOV	0.018	0.017	0.015
				D/h/FOV	0.008	0.007	0.007

Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.Those skilled in the art Member is it should be appreciated that invention scope involved in the application, however it is not limited to technology made of the specific combination of above-mentioned technical characteristic Scheme, while should also cover in the case where not departing from the inventive concept, it is carried out by above-mentioned technical characteristic or its equivalent feature Any combination and the other technical solutions formed.Such as features described above has similar function with (but being not limited to) disclosed herein Can technical characteristic replaced mutually and the technical solution that is formed.

Claims

1. optical lens, along optical axis by object side to image side sequentially include: the first lens, the second lens, the third lens, the 4th thoroughly Mirror, the 5th lens and the 6th lens,

It is characterized in that,

First lens have negative power, and object side is convex surface, and image side surface is concave surface；

Second lens have negative power, and object side is concave surface, and image side surface is convex surface；

The third lens have positive light coke, and object side is convex surface, and image side surface is concave surface；

4th lens have positive light coke, and object side and image side surface are convex surface；

5th lens have negative power, and object side is concave surface, and image side surface is convex surface；And

6th lens have negative power, and object side and image side surface are concave surface.

2. optical lens according to claim 1, which is characterized in that the 4th lens and the 5th lens are glued.

3. optical lens according to claim 1, which is characterized in that second lens, the third lens and described At least one of 6th lens are aspherical lens.

4. optical lens according to any one of claim 1-3, which is characterized in that the object side of first lens Center to the optical lens distance TTL of the imaging surface on the optical axis and the optical lens whole group focal length value F it Between meet: TTL/F≤4.

5. optical lens according to any one of claim 1-3, which is characterized in that the optics overall length of the optical lens It spends corresponding to TTL, optical lens maximum field of view angle between image height h and the maximum field of view angle FOV of the optical lens Meet: TTL/h/FOV≤0.025.

6. optical lens according to any one of claim 1-3, which is characterized in that meet D/h/FOV≤0.02,

Wherein, FOV is the maximum field of view angle of the optical lens；

D is the maximum clear aperture of the first lens object side corresponding to optical lens maximum field of view angle；And

H is image height corresponding to optical lens maximum field of view angle.

7. optical lens according to any one of claim 1-3, which is characterized in that the optical lens further includes setting Diaphragm between the third lens and the 4th lens.

8. optical lens, along optical axis by object side to image side sequentially include: the first lens, the second lens, the third lens, the 4th thoroughly Mirror, the 5th lens and the 6th lens,

It is characterized in that,

Second lens, the 5th lens and the 6th lens all have negative power；

The third lens and the 4th lens all have positive light coke；And

4th lens and the 5th lens are glued,

Wherein, the optics total length TTL of the optical lens, image height h and institute corresponding to optical lens maximum field of view angle It states and meets between the maximum field of view angle FOV of optical lens: TTL/h/FOV≤0.025.