CN206193323U - Ultra -extensive angle camera lens - Google Patents
Ultra -extensive angle camera lens Download PDFInfo
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- CN206193323U CN206193323U CN201621116397.1U CN201621116397U CN206193323U CN 206193323 U CN206193323 U CN 206193323U CN 201621116397 U CN201621116397 U CN 201621116397U CN 206193323 U CN206193323 U CN 206193323U
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Abstract
The utility model discloses ultra -extensive angle camera lens is contained by thing side to picture side in proper order: the first lens that have negative refracting power, have the second lens of positive refracting power, have the third lens of positive refracting power, the fourth lens that have positive refracting power, the 5th lens that have negative refracting power, have the VI lenses of positive refracting power, its thing side is the convex surface, is the concave surface like the side, satisfy following relational expression simultaneously: 2< F1f4< 1.5, wherein, f1 is the effective focal length of first lens, F4 is the effective focal length of fourth lens. Adopt this kind of structure to be favorable to realizing super wide angle, improve the relative illumination, realize the miniaturization simultaneously. The focus and the appropriate allocation of face type of each lens help promoting view field of lens angle and peripheral relative illumination, help shortening the camera lens overall length, satisfy ultra -thinization requirement.
Description
Technical field
The utility model is related to a kind of TV camera len of ultra wide-angle, the ultra wide-angle imaging mirror being particularly made up of six eyeglasses
Head.
Background technology
In recent years, with the development of the chip technologies such as CCD or CMOS so that optical imaging system is gradually toward miniaturization, light
Quantify and pixel neighborhoods high development.The increasing electronic product of in the market also has more next to the field range of optical imaging system
Requirement higher.In order to meet these trend, the optical imaging system for being applied on all kinds of portable type electronic products also enters
One step requirement miniaturization, image quality high and wide angle.The patent of Patent No. " CN104238076A " proposes a kind of light
System.The camera lens is in the case where high-resolution is ensured, relative illumination is higher.But the angle of visual field of the optical system is smaller,
Camera lens overall length is long, and wide angle still has the space that can further optimize with the characteristics of miniaturization.
Utility model content
The purpose of this utility model is to provide a kind of high imaging quality, the TV camera len of ultra wide-angle of miniaturization.
TV camera len of ultra wide-angle described in the utility model, is included successively by thing side to image side：With negative refracting power
One lens；The second lens with positive refracting power, the 3rd lens with positive refracting power；The 4th lens with positive refracting power；
The 5th lens with negative refracting power；The 6th lens with positive refracting power, its thing side is convex surface, and image side surface is concave surface；Together
When meet following relationship：-2<f1/f4<- 1.5, wherein, f1 is the effective focal length of the first lens；F4 is the effective of the 4th lens
Focal length.Using this structure be advantageously implemented ultra-wide angle, improve relative illumination, while realize miniaturization.
Further, TV camera len of ultra wide-angle described in the utility model meets following relationship：1.8<f3/f<3, its
In, f3 is the effective focal length of the 3rd lens；F is the effective focal length of TV camera len of ultra wide-angle.By the lens of reasonable disposition the 3rd
Focal length, is conducive to the aberration and monochromatic aberration of correction system, realizes the balance of various aberrations.
Further, TV camera len of ultra wide-angle described in the utility model meets following relationship：1≤R8/R9<1.5, its
In, R8 is the radius of curvature of the 4th lens image side surface；R9 is the radius of curvature of the 5th lens thing side.By reasonable disposition the 4th
The radius of curvature of lens, the 5th lens, is conducive to the aberration control of optical system, can obtain less in the case of wide-angle
Distortion.
Further, TV camera len of ultra wide-angle described in the utility model meets following relationship：0.8<CT4/CT6<
1.2, wherein, CT4 is center thickness of the 4th lens on optical axis, and CT6 is center thickness of the 6th lens on optical axis.Pass through
The center thickness of the lens of reasonable disposition the 4th and the 6th lens, advantageously ensures that the feature of camera lens miniaturization.
Further, TV camera len of ultra wide-angle described in the utility model meets following relationship：1<DT21/DT31<
1.5, wherein, DT21 is the effective radius of the second lens thing side；DT31 is the effective radius of the 3rd lens thing side.Using this
One is designed with beneficial to control size, it is ensured that the demand of miniaturization, while being also beneficial to lens assembling.
Further, TV camera len of ultra wide-angle described in the utility model meets following relationship：0.4<SAG11/SAG12
<0.7；Wherein, SAG11 is the intersection point of the first lens thing side and optical axis between the effective radius summit of the first lens thing side
Axle on distance；SAG12 be the first lens image side surface and optical axis intersection point to the first lens thing side effective radius summit it
Between axle on distance.The wide angle of the camera lens is advantageously implemented using this design, while advantageously ensuring that relative illumination.
Further, TV camera len of ultra wide-angle described in the utility model meets following relationship：0.2<ΣT/TTL<
0.5, wherein, Σ T are the summation of spacing distance on the first lens to the countershaft of the lens of the 6th lens arbitrary neighborhood two；TTL is
Distance on one lens thing side to the axle of imaging surface.Under same size (TTL), interval is oversize, can cause single center of lens
Thickness distribution is uneven, while being unfavorable for miniaturization；Interval is too short, is difficult to ensure assemblage, and off-axis aberration is also not susceptible to correction,
Increase the risk for producing ghost image simultaneously, meeting above formula can be while takes into account manufacturability and image quality.
Further, TV camera len of ultra wide-angle described in the utility model meets following relationship：0.5<R7/R11<1.1,
Wherein, R7 is the radius of curvature of the 4th lens thing side；R11 is the radius of curvature of the 6th lens thing side.Using this design
Chromatic longitudiinal aberration can preferably be controlled, it is to avoid the introducing of aberration aspect senior aberration.
Further, the first lens thing side in TV camera len of ultra wide-angle described in the utility model is convex surface, image side
Face is concave surface.First lens use falcate, and substantially bend towards object side, are conducive to expanding the angle of visual field.
Further, the second lens thing side in TV camera len of ultra wide-angle described in the utility model is concave surface, image side
Face is convex surface.By the lens of reasonable disposition first and the face type of the second lens, can effectively reduce camera lens susceptibility, and beneficial to plus
Work.
The beneficial effects of the utility model are to employ 6 plastic aspherical element eyeglasses, and the focal length of each lens is reasonable with face type
Configuration, helps to lift the angle of view and periphery relative illumination, helps to shorten camera lens overall length, meets ultrathin requirement.
The utility model is described further with reference to the accompanying drawings and examples.
Brief description of the drawings
Fig. 1 is the structural representation of TV camera len of ultra wide-angle described in embodiment one；
Fig. 2 is chromatic curve figure on the axle of TV camera len of ultra wide-angle described in embodiment one；
Fig. 3 is the astigmatism curve map of TV camera len of ultra wide-angle described in embodiment one；
Fig. 4 is the ratio chromatism, curve map of TV camera len of ultra wide-angle described in embodiment one；
Fig. 5 is the relative illumination curve map of TV camera len of ultra wide-angle described in embodiment one；
Fig. 6 is the structural representation of TV camera len of ultra wide-angle described in embodiment two；
Fig. 7 is chromatic curve figure on the axle of TV camera len of ultra wide-angle described in embodiment two；
Fig. 8 is the astigmatism curve map of TV camera len of ultra wide-angle described in embodiment two；
Fig. 9 is the ratio chromatism, curve map of TV camera len of ultra wide-angle described in embodiment two；
Figure 10 is the relative illumination curve map of TV camera len of ultra wide-angle described in embodiment two；
Figure 11 is the structural representation of TV camera len of ultra wide-angle described in embodiment three；
Figure 12 is chromatic curve figure on the axle of TV camera len of ultra wide-angle described in embodiment three；
Figure 13 is the astigmatism curve map of TV camera len of ultra wide-angle described in embodiment three；
Figure 14 is the ratio chromatism, curve map of TV camera len of ultra wide-angle described in embodiment three；
Figure 15 is the relative illumination curve map of TV camera len of ultra wide-angle described in embodiment three；
Figure 16 is the structural representation of TV camera len of ultra wide-angle described in example IV；
Figure 17 is chromatic curve figure on the axle of TV camera len of ultra wide-angle described in example IV；
Figure 18 is the astigmatism curve map of TV camera len of ultra wide-angle described in example IV；
Figure 19 is the ratio chromatism, curve map of TV camera len of ultra wide-angle described in example IV；
Figure 20 is the relative illumination curve map of TV camera len of ultra wide-angle described in example IV；
Figure 21 is the structural representation of TV camera len of ultra wide-angle described in embodiment five；
Figure 22 is chromatic curve figure on the axle of TV camera len of ultra wide-angle described in embodiment five；
Figure 23 is the astigmatism curve map of TV camera len of ultra wide-angle described in embodiment five；
Figure 24 is the ratio chromatism, curve map of TV camera len of ultra wide-angle described in embodiment five；
Figure 25 is the relative illumination curve map of TV camera len of ultra wide-angle described in embodiment five；
Figure 26 is the structural representation of TV camera len of ultra wide-angle described in embodiment six；
Figure 27 is chromatic curve figure on the axle of TV camera len of ultra wide-angle described in embodiment six；
Figure 28 is the astigmatism curve map of TV camera len of ultra wide-angle described in embodiment six；
Figure 29 is the ratio chromatism, curve map of TV camera len of ultra wide-angle described in embodiment six；
Figure 30 is the relative illumination curve map of TV camera len of ultra wide-angle described in embodiment six；
Figure 31 is the structural representation of TV camera len of ultra wide-angle described in embodiment seven；
Figure 32 is chromatic curve figure on the axle of TV camera len of ultra wide-angle described in embodiment seven；
Figure 33 is the astigmatism curve map of TV camera len of ultra wide-angle described in embodiment seven；
Figure 34 is the ratio chromatism, curve map of TV camera len of ultra wide-angle described in embodiment seven；
Figure 35 is the relative illumination curve map of TV camera len of ultra wide-angle described in embodiment seven；
Figure 36 is the structural representation of TV camera len of ultra wide-angle described in embodiment eight；
Figure 37 is chromatic curve figure on the axle of TV camera len of ultra wide-angle described in embodiment eight；
Figure 38 is the astigmatism curve map of TV camera len of ultra wide-angle described in embodiment eight；
Figure 39 is the ratio chromatism, curve map of TV camera len of ultra wide-angle described in embodiment eight；
Figure 40 is the relative illumination curve map of TV camera len of ultra wide-angle described in embodiment eight.
Specific embodiment
Embodiment one：
Referring to accompanying drawing 1, the TV camera len of ultra wide-angle described in the present embodiment includes successively from thing side to image side：Bent with negative
Roll over the first lens L1 of power；The second lens L2 with positive refracting power；The 3rd lens L3 with positive refracting power；With positive flexion
4th lens L4 of power；The 5th lens L5 with negative refracting power；The 6th lens L6 with positive refracting power.
Wherein：The thing side S1 of the first lens L1 is convex surface, and image side surface S2 is concave surface；The thing side S3 of the second lens L2 is
Concave surface, image side surface S4 is convex surface；3rd lens L3 has thing side S5 and image side surface S6；4th lens L4 have thing side S7 and
Image side surface S8；5th lens L5 has thing side S9 and image side surface S10；The thing side S11 of the 6th lens L6 is convex surface, image side surface
S12 is concave surface；Optical filter L7 has thing side S13 and image side surface S14；TV camera len of ultra wide-angle imaging surface described in the present embodiment
S15 is located at the image side of optical filter L7, is available for installing photo-sensitive cell.
The main design parameters of the TV camera len of ultra wide-angle described in the present embodiment see the table below 1：
Table 1
Wherein：F1 is the effective focal length of the first lens；F3 is the effective focal length of the 3rd lens；F4 is the effective of the 4th lens
Focal length；F is the effective focal length of TV camera len of ultra wide-angle；R7 is the radius of curvature of the 4th lens thing side；R8 is the 4th lens picture
The radius of curvature of side；R9 is the radius of curvature of the 5th lens thing side；R11 is the radius of curvature of the 6th lens thing side；CT4
It is center thickness of the 4th lens on optical axis, CT6 is center thickness of the 6th lens on optical axis；DT21 is the second lens thing
The effective radius of side；DT31 is the effective radius of the 3rd lens thing side；SAG11 is the friendship of the first lens thing side and optical axis
O'clock to distance on the axle between the effective radius summit of the first lens thing side；SAG12 is the first lens image side surface and optical axis
Distance on intersection point to the axle between the effective radius summit of the first lens thing side；Σ T are that the first lens are any to the 6th lens
The summation of spacing distance on the countershaft of adjacent two lens；TTL is distance on the first lens thing side to the axle of imaging surface.
To realize above-mentioned design parameter, the specific design that the TV camera len of ultra wide-angle described in the present embodiment is used see the table below
2：
Table 2
| Face number | Surface type | Radius of curvature | Thickness | Material | Circular cone coefficient |
| OBJ | Sphere | It is infinite | It is infinite | ||
| S1 | It is aspherical | 10.1241 | 0.3500 | 1.60/30.0 | 9.9513 |
| S2 | It is aspherical | 1.9314 | 0.7344 | -0.8806 | |
| S3 | It is aspherical | -41.3338 | 1.2745 | 1.54/56.0 | 0.0000 |
| S4 | It is aspherical | -2.5012 | 0.0399 | -1.5805 | |
| STO | Sphere | It is infinite | 0.0300 | ||
| S5 | It is aspherical | 41.1168 | 0.5889 | 1.54/56.0 | 0.0000 |
| S6 | It is aspherical | -3.8748 | 0.9384 | 1.3644 | |
| S7 | It is aspherical | 3.4910 | 1.3315 | 1.54/56.0 | -1.4653 |
| S8 | It is aspherical | -2.0772 | 0.1715 | -1.7155 | |
| S9 | It is aspherical | -1.3990 | 0.3500 | 1.64/23.9 | -0.9870 |
| S10 | It is aspherical | 10.5331 | 0.0498 | 0.0000 | |
| S11 | It is aspherical | 4.8573 | 1.1386 | 1.54/56.0 | 0.0000 |
| S12 | It is aspherical | 6.0598 | 0.1925 | 0.0000 | |
| S13 | Sphere | It is infinite | 0.2100 | ||
| S14 | Sphere | It is infinite | 0.6000 | ||
| S15 | Sphere | It is infinite |
In TV camera len of ultra wide-angle described in the present embodiment non-spherical lens aspherical high order term coefficient (A4, A6, A8,
A10, A12) see the table below 3：
Table 3
| Face number | A4 | A6 | A8 | A10 | A12 |
| S1 | -5.6510E-03 | -1.7225E-03 | -1.3775E-05 | 1.1232E-04 | -1.2807E-05 |
| S2 | 5.0609E-02 | 4.4153E-03 | 2.2286E-02 | -1.5177E-02 | 8.1941E-03 |
| S3 | -6.4420E-03 | 1.7912E-03 | -1.2959E-03 | 3.1871E-03 | -1.2394E-03 |
| S4 | 3.4088E-03 | -5.4022E-04 | 5.9523E-03 | -9.9895E-03 | 4.0564E-03 |
| S5 | -2.5311E-02 | 1.4945E-03 | -5.5900E-03 | -6.3151E-03 | -5.8775E-04 |
| S6 | -6.4684E-02 | 9.5031E-05 | 9.1540E-03 | -1.1241E-02 | 1.0393E-03 |
| S7 | -2.2350E-02 | 1.4973E-03 | -3.6627E-04 | 6.3614E-05 | 2.6385E-05 |
| S8 | -7.3670E-03 | -6.4900E-03 | -1.4765E-05 | 2.2700E-05 | 4.8454E-05 |
| S9 | 1.9570E-02 | -2.2615E-03 | -1.0759E-03 | -1.6411E-05 | 4.7115E-05 |
| S10 | 2.3980E-03 | 3.4088E-04 | 7.5076E-05 | -1.0950E-05 | 6.4227E-07 |
| S11 | -1.5412E-02 | 1.0914E-03 | 1.5743E-06 | 7.0665E-06 | -2.3767E-06 |
| S12 | -1.3558E-02 | 1.2217E-03 | -1.0368E-04 | -5.5207E-06 | 5.9239E-07 |
TV camera len of ultra wide-angle described in the present embodiment, not only effectively controls aberration, astigmatism, improves periphery and contrasts
Degree, obtains preferable image quality, referring to accompanying drawing 2- Fig. 5, meanwhile, the angle of view and shorter system length are realized, and
Miniaturization Design and good manufacturability can be taken into account.
Embodiment two：
Referring to accompanying drawing 6, the TV camera len of ultra wide-angle described in the present embodiment includes successively from thing side to image side：Bent with negative
Roll over the first lens L1 of power；The second lens L2 with positive refracting power；The 3rd lens L3 with positive refracting power；With positive flexion
4th lens L4 of power；The 5th lens L5 with negative refracting power；The 6th lens L6 with positive refracting power.
Wherein：The thing side S1 of the first lens L1 is convex surface, and image side surface S2 is concave surface；The thing side S3 of the second lens L2 is
Concave surface, image side surface S4 is convex surface；3rd lens L3 has thing side S5 and image side surface S6；4th lens L4 have thing side S7 and
Image side surface S8；5th lens L5 has thing side S9 and image side surface S10；The thing side S11 of the 6th lens L6 is convex surface, image side surface
S12 is concave surface；Optical filter L7 has thing side S13 and image side surface S14；TV camera len of ultra wide-angle imaging surface described in the present embodiment
S15 is located at the image side of optical filter L7, is available for installing photo-sensitive cell.
The main design parameters of the TV camera len of ultra wide-angle described in the present embodiment see the table below 4：
Table 4
| Title | Numerical value |
| The effective focal length of the first lens：f1(mm) | -3.35 |
| The effective focal length of the second lens：f2(mm) | 38.87 |
| The effective focal length of the 3rd lens：f3(mm) | 4.76 |
| The effective focal length of the 4th lens：f4(mm) | 2.14 |
| The effective focal length of the 5th lens：f5(mm) | -2.37 |
| The effective focal length of the 6th lens：f6(mm) | 14.13 |
| The effective focal length of TV camera len of ultra wide-angle：f(mm) | 2.01 |
| Stop value：Fno | 2.20 |
| Angle of half field-of view：HFOV(°) | 84.97 |
| f1/f4 | -1.563 |
| f3/f | 2.365 |
| R8/R9 | 1.320 |
| CT4/CT6 | 1.040 |
| DT21/DT31 | 1.255 |
| SAG11/SAG12 | 0.610 |
| ΣT/TTL | 0.367 |
| R7/R11 | 0.954 |
Wherein：F1 is the effective focal length of the first lens；F3 is the effective focal length of the 3rd lens；F4 is the effective of the 4th lens
Focal length；F is the effective focal length of TV camera len of ultra wide-angle；R7 is the radius of curvature of the 4th lens thing side；R8 is the 4th lens picture
The radius of curvature of side；R9 is the radius of curvature of the 5th lens thing side；R11 is the radius of curvature of the 6th lens thing side；CT4
It is center thickness of the 4th lens on optical axis, CT6 is center thickness of the 6th lens on optical axis；DT21 is the second lens thing
The effective radius of side；DT31 is the effective radius of the 3rd lens thing side；SAG11 is the friendship of the first lens thing side and optical axis
O'clock to distance on the axle between the effective radius summit of the first lens thing side；SAG12 is the first lens image side surface and optical axis
Distance on intersection point to the axle between the effective radius summit of the first lens thing side；Σ T are that the first lens are any to the 6th lens
The summation of spacing distance on the countershaft of adjacent two lens；TTL is distance on the first lens thing side to the axle of imaging surface.
To realize above-mentioned design parameter, the specific design that the TV camera len of ultra wide-angle described in the present embodiment is used see the table below
5：
Table 5
| Face number | Surface type | Radius of curvature | Thickness | Material | Circular cone coefficient |
| OBJ | Sphere | It is infinite | It is infinite | ||
| S1 | It is aspherical | 12.3900 | 0.4000 | 1.53/55.8 | 0.0000 |
| S2 | It is aspherical | 1.5508 | 1.4167 | 0.0000 | |
| S3 | It is aspherical | -3.2524 | 0.7648 | 1.64/23.5 | 0.0000 |
| S4 | It is aspherical | -3.1401 | 0.2234 | 0.0000 | |
| S5 | It is aspherical | 4.0848 | 0.5196 | 1.52/64.2 | 0.0000 |
| S6 | It is aspherical | -6.7735 | 0.1004 | 0.0000 | |
| STO | Sphere | It is infinite | 0.4553 | ||
| S7 | It is aspherical | 2.5874 | 1.0118 | 1.52/64.2 | 0.0000 |
| S8 | It is aspherical | -1.8260 | 0.2301 | 0.0000 | |
| S9 | It is aspherical | -1.3835 | 0.3000 | 1.65/21.5 | 0.0000 |
| S10 | It is aspherical | -14.4479 | 0.5112 | 0.0000 | |
| S11 | It is aspherical | 2.7129 | 0.9730 | 1.52/64.2 | 0.0000 |
| S12 | It is aspherical | 3.6621 | 0.3435 | 0.0000 | |
| S13 | Sphere | It is infinite | 0.2100 | 1.52/64.2 | |
| S14 | Sphere | It is infinite | 0.5400 | ||
| S15 | Sphere | It is infinite |
In TV camera len of ultra wide-angle described in the present embodiment non-spherical lens aspherical high order term coefficient (A4, A6, A8,
A10, A12, A14, A16) see the table below 6：
Table 6
TV camera len of ultra wide-angle described in the present embodiment, not only effectively controls aberration, astigmatism, improves periphery and contrasts
Degree, obtains preferable image quality, referring to accompanying drawing 7- Figure 10, meanwhile, the angle of view and shorter system length are realized, and
Miniaturization Design and good manufacturability can be taken into account.
Embodiment three：
Referring to accompanying drawing 11, the TV camera len of ultra wide-angle described in the present embodiment includes successively from thing side to image side：Bent with negative
Roll over the first lens L1 of power；The second lens L2 with positive refracting power；The 3rd lens L3 with positive refracting power；With positive flexion
4th lens L4 of power；The 5th lens L5 with negative refracting power；The 6th lens L6 with positive refracting power.
Wherein：
The thing side S1 of the first lens L1 is convex surface, and image side surface S2 is concave surface；The thing side S3 of the second lens L2 is concave surface,
Image side surface S4 is convex surface；3rd lens L3 has thing side S5 and image side surface S6；4th lens L4 has thing side S7 and image side
Face S8；5th lens L5 has thing side S8 and image side surface S9；The thing side S10 of the 6th lens L6 is convex surface, and image side surface S11 is
Concave surface；Optical filter L7 has thing side S12 and image side surface S13；TV camera len of ultra wide-angle imaging surface described in the present embodiment S14
In the image side of optical filter L7, it is available for that photo-sensitive cell is installed.
The main design parameters of the TV camera len of ultra wide-angle described in the present embodiment see the table below 7：
Table 7
| Title | Numerical value |
| The effective focal length of the first lens：f1(mm) | -3.45 |
| The effective focal length of the second lens：f2(mm) | 20.19 |
| The effective focal length of the 3rd lens：f3(mm) | 5.19 |
| The effective focal length of the 4th lens：f4(mm) | 2.01 |
| The effective focal length of the 5th lens：f5(mm) | -2.24 |
| The effective focal length of the 6th lens：f6(mm) | 18.30 |
| The effective focal length of TV camera len of ultra wide-angle：f(mm) | 2.08 |
| Stop value：Fno | 2.20 |
| Angle of half field-of view：HFOV(°) | 85.00 |
| f1/f4 | -1.713 |
| f3/f | 2.499 |
| R8/R9 | 1.000 |
| CT4/CT6 | 1.133 |
| DT21/DT31 | 1.251 |
| SAG11/SAG12 | 0.429 |
| ΣT/TTL | 0.350 |
| R7/R11 | 0.874 |
Wherein：F1 is the effective focal length of the first lens；F3 is the effective focal length of the 3rd lens；F4 is the effective of the 4th lens
Focal length；F is the effective focal length of TV camera len of ultra wide-angle；R7 is the radius of curvature of the 4th lens thing side；R8 is the 4th lens picture
The radius of curvature of side；R9 is the radius of curvature of the 5th lens thing side；R11 is the radius of curvature of the 6th lens thing side；CT4
It is center thickness of the 4th lens on optical axis, CT6 is center thickness of the 6th lens on optical axis；DT21 is the second lens thing
The effective radius of side；DT31 is the effective radius of the 3rd lens thing side；SAG11 is the friendship of the first lens thing side and optical axis
O'clock to distance on the axle between the effective radius summit of the first lens thing side；SAG12 is the first lens image side surface and optical axis
Distance on intersection point to the axle between the effective radius summit of the first lens thing side；Σ T are that the first lens are any to the 6th lens
The summation of spacing distance on the countershaft of adjacent two lens；TTL is distance on the first lens thing side to the axle of imaging surface.
To realize above-mentioned design parameter, the specific design that the TV camera len of ultra wide-angle described in the present embodiment is used see the table below
8：
Table 8
In TV camera len of ultra wide-angle described in the present embodiment non-spherical lens aspherical high order term coefficient (A4, A6, A8,
A10, A12, A14, A16) see the table below 9：
Table 9
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 8.2514E-03 | -9.2130E-04 | 3.6971E-05 | 2.8686E-06 | -1.5295E-07 | -1.2349E-08 | 7.7801E-10 |
| S2 | 2.2407E-02 | -4.4635E-03 | 8.1698E-03 | -2.1424E-03 | 3.0282E-04 | -9.3913E-05 | -2.6098E-05 |
| S3 | -2.7120E-02 | 2.7675E-02 | -2.7449E-03 | -6.2957E-04 | 1.2950E-04 | -5.4298E-06 | -2.9135E-06 |
| S4 | 4.1166E-02 | 1.6022E-02 | -1.5860E-03 | 2.8661E-03 | -8.9584E-05 | 6.4884E-06 | -1.1855E-06 |
| S5 | 1.8865E-02 | 1.4700E-02 | -1.6690E-02 | 7.4336E-03 | 3.2894E-04 | -2.6990E-11 | 4.0057E-14 |
| S6 | -1.0535E-01 | 5.4558E-02 | -1.7735E-02 | 3.9825E-03 | 1.0707E-09 | 1.5702E-11 | 4.7123E-14 |
| S7 | -6.3917E-02 | 1.4592E-02 | -1.1072E-02 | 6.5329E-04 | -2.2086E-09 | -3.0509E-11 | -1.4295E-12 |
| S9 | -6.4414E-03 | 2.8477E-02 | -1.8170E-02 | 4.7882E-03 | -2.1041E-04 | -5.4191E-05 | 7.3493E-11 |
| S10 | -6.8766E-02 | 1.7435E-02 | -3.3419E-03 | 1.3670E-05 | 3.0225E-05 | 1.2483E-05 | -2.1443E-06 |
| S11 | -4.3814E-02 | -2.3979E-03 | 3.8838E-03 | -9.9365E-04 | 5.6407E-05 | 8.8694E-06 | -9.1608E-07 |
TV camera len of ultra wide-angle described in the present embodiment, not only effectively controls aberration, astigmatism, improves periphery and contrasts
Degree, obtains preferable image quality, referring to accompanying drawing 12- Figure 15, meanwhile, the angle of view and shorter system length are realized,
And Miniaturization Design and good manufacturability can be taken into account.
Example IV：
Referring to accompanying drawing 16, the TV camera len of ultra wide-angle described in the present embodiment includes successively from thing side to image side：Bent with negative
Roll over the first lens L1 of power；The second lens L2 with positive refracting power；The 3rd lens L3 with positive refracting power；With positive flexion
4th lens L4 of power；The 5th lens L5 with negative refracting power；The 6th lens L6 with positive refracting power.
Wherein：The thing side S1 of the first lens L1 is convex surface, and image side surface S2 is concave surface；The thing side S3 of the second lens L2 is
Concave surface, image side surface S4 is convex surface；3rd lens L3 has thing side S5 and image side surface S6；4th lens L4 have thing side S7 and
Image side surface S8；5th lens L5 has thing side S9 and image side surface S10；The thing side S11 of the 6th lens L6 is convex surface, image side surface
S12 is concave surface；Optical filter L7 has thing side S13 and image side surface S14；TV camera len of ultra wide-angle imaging surface described in the present embodiment
S15 is located at the image side of optical filter L7, is available for installing photo-sensitive cell.
The main design parameters of the TV camera len of ultra wide-angle described in the present embodiment see the table below 10：
Table 10
Wherein：F1 is the effective focal length of the first lens；F3 is the effective focal length of the 3rd lens；F4 is the effective of the 4th lens
Focal length；F is the effective focal length of TV camera len of ultra wide-angle；R7 is the radius of curvature of the 4th lens thing side；R8 is the 4th lens picture
The radius of curvature of side；R9 is the radius of curvature of the 5th lens thing side；R11 is the radius of curvature of the 6th lens thing side；CT4
It is center thickness of the 4th lens on optical axis, CT6 is center thickness of the 6th lens on optical axis；DT21 is the second lens thing
The effective radius of side；DT31 is the effective radius of the 3rd lens thing side；SAG11 is the friendship of the first lens thing side and optical axis
O'clock to distance on the axle between the effective radius summit of the first lens thing side；SAG12 is the first lens image side surface and optical axis
Distance on intersection point to the axle between the effective radius summit of the first lens thing side；Σ T are that the first lens are any to the 6th lens
The summation of spacing distance on the countershaft of adjacent two lens；TTL is distance on the first lens thing side to the axle of imaging surface.
To realize above-mentioned design parameter, the specific design that the TV camera len of ultra wide-angle described in the present embodiment is used see the table below
11：
Table 11
| Face number | Surface type | Radius of curvature | Thickness | Material | Circular cone coefficient |
| OBJ | Sphere | It is infinite | It is infinite | ||
| S1 | It is aspherical | 11.6689 | 0.3724 | 1.53/55.8 | 0.0000 |
| S2 | It is aspherical | 1.5639 | 1.3290 | 0.0000 | |
| S3 | It is aspherical | 1000.0000 | 0.7107 | 1.64/23.5 | 0.0000 |
| S4 | It is aspherical | -11.5763 | 0.2636 | 0.0000 | |
| S5 | It is aspherical | 3.8785 | 0.6122 | 1.52/64.2 | 0.0000 |
| S6 | It is aspherical | -7.1075 | 0.0612 | 0.0000 | |
| STO | Sphere | It is infinite | 0.3405 | ||
| S7 | It is aspherical | 2.7849 | 0.9468 | 1.52/64.2 | 0.0000 |
| S8 | It is aspherical | -1.7647 | 0.2157 | 0.0000 | |
| S9 | It is aspherical | -1.4064 | 0.3167 | 1.65/21.5 | 0.0000 |
| S10 | It is aspherical | -12.2619 | 0.4112 | 0.0000 | |
| S11 | It is aspherical | 2.6591 | 1.0830 | 1.52/64.2 | 0.0000 |
| S12 | It is aspherical | 3.5420 | 0.3653 | 0.0000 | |
| S13 | Sphere | It is infinite | 0.2100 | 1.52/64.2 | |
| S14 | Sphere | It is infinite | 0.5400 | ||
| S15 | Sphere | It is infinite |
In TV camera len of ultra wide-angle described in the present embodiment non-spherical lens aspherical high order term coefficient (A4, A6, A8,
A10, A12, A14, A16) see the table below 12：
Table 12
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | -9.7683E-05 | -1.5935E-04 | 2.6789E-05 | 1.2010E-06 | -1.9028E-07 | -9.7484E-09 | 9.9532E-10 |
| S2 | 2.3165E-03 | -8.6038E-04 | 5.4475E-03 | -2.1399E-03 | 3.3471E-04 | -8.3078E-05 | -7.3872E-06 |
| S3 | -2.8426E-02 | 1.5099E-02 | -6.6400E-03 | -2.0304E-04 | 1.5297E-04 | 8.1732E-06 | 2.5978E-05 |
| S4 | 5.0800E-02 | 5.7372E-03 | 2.3055E-03 | 4.9859E-03 | 4.8593E-04 | -2.6378E-04 | -7.4157E-04 |
| S5 | 5.0408E-02 | -5.4283E-03 | -8.3387E-03 | 1.4721E-02 | 6.7096E-04 | -3.6084E-03 | -3.1705E-03 |
| S6 | -8.7525E-02 | 3.0765E-02 | -2.1413E-04 | -7.1085E-04 | 2.1468E-04 | -4.4861E-05 | -2.0254E-03 |
| S7 | -8.7127E-02 | -1.0902E-02 | 1.9465E-03 | -4.4409E-02 | -1.4294E-03 | 2.0983E-03 | 9.5615E-03 |
| S8 | -1.0675E-02 | -9.4686E-04 | -2.0778E-02 | -7.7697E-04 | 8.4560E-04 | 7.4781E-04 | 1.0731E-03 |
| S9 | 9.3006E-02 | 1.8208E-02 | -5.3281E-02 | 3.6228E-02 | -3.3502E-05 | -3.0381E-04 | -5.2327E-04 |
| S10 | 6.8546E-02 | -1.1295E-02 | -4.2571E-03 | 1.9413E-03 | -1.5025E-04 | -1.1656E-05 | -4.7465E-06 |
| S11 | -5.5841E-02 | 1.2284E-02 | -2.4020E-03 | 1.1547E-04 | 3.2984E-06 | 6.1661E-06 | -9.0351E-07 |
| S12 | -1.9323E-02 | -5.6593E-03 | 3.2467E-03 | -6.5699E-04 | 6.2794E-06 | 1.1014E-05 | -8.4080E-07 |
TV camera len of ultra wide-angle described in the present embodiment, not only effectively controls aberration, astigmatism, improves periphery and contrasts
Degree, obtains preferable image quality, referring to accompanying drawing 17- Figure 20, meanwhile, the angle of view and shorter system length are realized,
And Miniaturization Design and good manufacturability can be taken into account.
Embodiment five：
Referring to accompanying drawing 21, the TV camera len of ultra wide-angle described in the present embodiment includes successively from thing side to image side：Bent with negative
Roll over the first lens L1 of power；The second lens L2 with positive refracting power；The 3rd lens L3 with positive refracting power；With positive flexion
4th lens L4 of power；The 5th lens L5 with negative refracting power；The 6th lens L6 with positive refracting power.
Wherein：The thing side S1 of the first lens L1 is convex surface, and image side surface S2 is concave surface；The thing side S3 of the second lens L2 is
Concave surface, image side surface S4 is convex surface；3rd lens L3 has thing side S5 and image side surface S6；4th lens L4 have thing side S7 and
Image side surface S8；5th lens L5 has thing side S9 and image side surface S10；The thing side S11 of the 6th lens L6 is convex surface, image side surface
S12 is concave surface；Optical filter L7 has thing side S13 and image side surface S14；TV camera len of ultra wide-angle imaging surface described in the present embodiment
S15 is located at the image side of optical filter L7, is available for installing photo-sensitive cell.
The main design parameters of the TV camera len of ultra wide-angle described in the present embodiment see the table below 13：
Table 13
Wherein：F1 is the effective focal length of the first lens；F3 is the effective focal length of the 3rd lens；F4 is the effective of the 4th lens
Focal length；F is the effective focal length of TV camera len of ultra wide-angle；R7 is the radius of curvature of the 4th lens thing side；R8 is the 4th lens picture
The radius of curvature of side；R9 is the radius of curvature of the 5th lens thing side；R11 is the radius of curvature of the 6th lens thing side；CT4
It is center thickness of the 4th lens on optical axis, CT6 is center thickness of the 6th lens on optical axis；DT21 is the second lens thing
The effective radius of side；DT31 is the effective radius of the 3rd lens thing side；SAG11 is the friendship of the first lens thing side and optical axis
O'clock to distance on the axle between the effective radius summit of the first lens thing side；SAG12 is the first lens image side surface and optical axis
Distance on intersection point to the axle between the effective radius summit of the first lens thing side；Σ T are that the first lens are any to the 6th lens
The summation of spacing distance on the countershaft of adjacent two lens；TTL is distance on the first lens thing side to the axle of imaging surface.
To realize above-mentioned design parameter, the specific design that the TV camera len of ultra wide-angle described in the present embodiment is used see the table below
14：
Table 14
| Face number | Surface type | Radius of curvature | Thickness | Material | Circular cone coefficient |
| OBJ | Sphere | It is infinite | It is infinite | ||
| S1 | It is aspherical | 9.4890 | 0.4087 | 1.53/55.8 | 0.0000 |
| S2 | It is aspherical | 1.5573 | 1.3742 | 0.0000 | |
| S3 | It is aspherical | 200.0000 | 0.7768 | 1.64/23.5 | 0.0000 |
| S4 | It is aspherical | 500.0000 | 0.2699 | 0.0000 | |
| S5 | It is aspherical | 3.7914 | 0.6017 | 1.52/64.2 | 0.0000 |
| S6 | It is aspherical | -6.8412 | 0.0569 | 0.0000 | |
| STO | Sphere | It is infinite | 0.3395 | ||
| S7 | It is aspherical | 2.7225 | 0.9806 | 1.52/64.2 | 0.0000 |
| S8 | It is aspherical | -1.7511 | 0.2260 | 0.0000 | |
| S9 | It is aspherical | -1.4132 | 0.3672 | 1.65/21.5 | 0.0000 |
| S10 | It is aspherical | -10.7309 | 0.4885 | 0.0000 | |
| S11 | It is aspherical | 2.5774 | 1.1445 | 1.52/64.2 | 0.0000 |
| S12 | It is aspherical | 4.0069 | 0.4232 | 0.0000 | |
| S13 | Sphere | It is infinite | 0.2100 | 1.52/64.2 | |
| S14 | Sphere | It is infinite | 0.5400 | ||
| S15 | Sphere | It is infinite |
In TV camera len of ultra wide-angle described in the present embodiment non-spherical lens aspherical high order term coefficient (A4, A6, A8,
A10, A12, A14, A16) see the table below 15：
Table 15
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | -1.2073E-04 | -1.6690E-04 | 2.6021E-05 | 1.1213E-06 | -1.9874E-07 | -1.0652E-08 | 8.9900E-10 |
| S2 | 1.0255E-03 | -1.3948E-03 | 5.1986E-03 | -2.2249E-03 | 3.2068E-04 | -8.2993E-05 | -6.1624E-06 |
| S3 | -2.7753E-02 | 1.5135E-02 | -6.6243E-03 | -1.8657E-04 | 1.6736E-04 | 1.9034E-05 | 3.3481E-05 |
| S4 | 4.9139E-02 | 5.4851E-03 | 1.9810E-03 | 4.5566E-03 | 3.6178E-05 | -6.9560E-04 | -1.1431E-03 |
| S5 | 5.1255E-02 | -6.3164E-03 | -9.1600E-03 | 1.4623E-02 | 1.2158E-03 | -2.5998E-03 | -1.8191E-03 |
| S6 | -8.8447E-02 | 3.1752E-02 | 2.0892E-03 | 2.2568E-03 | 3.2526E-03 | 2.4740E-03 | -7.4127E-04 |
| S7 | -8.6126E-02 | -1.1914E-02 | 9.3123E-04 | -4.4798E-02 | -1.2023E-03 | 2.8300E-03 | 1.0721E-02 |
| S8 | -1.1302E-02 | -7.8078E-04 | -2.0767E-02 | -8.3086E-04 | 7.6972E-04 | 6.6627E-04 | 9.9368E-04 |
| S9 | 9.3728E-02 | 1.8249E-02 | -5.3278E-02 | 3.6242E-02 | -7.1526E-06 | -2.7107E-04 | -4.8960E-04 |
| S10 | 6.8470E-02 | -1.1247E-02 | -4.2340E-03 | 1.9490E-03 | -1.4860E-04 | -1.1885E-05 | -5.3293E-06 |
| S11 | -5.3961E-02 | 1.2337E-02 | -2.4049E-03 | 1.1391E-04 | 3.2984E-06 | 6.0652E-06 | -9.2578E-07 |
| S12 | -1.7384E-02 | -5.6593E-03 | 3.2563E-03 | -6.5587E-04 | 6.4412E-06 | 1.1038E-05 | -8.3708E-07 |
TV camera len of ultra wide-angle described in the present embodiment, not only effectively controls aberration, astigmatism, improves periphery and contrasts
Degree, obtains preferable image quality, referring to accompanying drawing 22- Figure 25, meanwhile, the angle of view and shorter system length are realized,
And Miniaturization Design and good manufacturability can be taken into account.
Embodiment six：
Referring to accompanying drawing 26, the TV camera len of ultra wide-angle described in the present embodiment includes successively from thing side to image side：Bent with negative
Roll over the first lens L1 of power；The second lens L2 with positive refracting power；The 3rd lens L3 with positive refracting power；With positive flexion
4th lens L4 of power；The 5th lens L5 with negative refracting power；The 6th lens L6 with positive refracting power.
Wherein：The thing side S1 of the first lens L1 is convex surface, and image side surface S2 is concave surface；The thing side S3 of the second lens L2 is
Concave surface, image side surface S4 is convex surface；3rd lens L3 has thing side S5 and image side surface S6；4th lens L4 have thing side S7 and
Image side surface S8；5th lens L5 has thing side S9 and image side surface S10；The thing side S11 of the 6th lens L6 is convex surface, image side surface
S12 is concave surface；Optical filter L7 has thing side S13 and image side surface S14；TV camera len of ultra wide-angle imaging surface described in the present embodiment
S15 is located at the image side of optical filter L7, is available for installing photo-sensitive cell.
The main design parameters of the TV camera len of ultra wide-angle described in the present embodiment see the table below 16：
Table 16
| Title | Numerical value |
| The effective focal length of the first lens：f1(mm) | -3.38 |
| The effective focal length of the second lens：f2(mm) | 39.24 |
| The effective focal length of the 3rd lens：f3(mm) | 4.94 |
| The effective focal length of the 4th lens：f4(mm) | 2.13 |
| The effective focal length of the 5th lens：f5(mm) | -2.37 |
| The effective focal length of the 6th lens：f6(mm) | 13.22 |
| The effective focal length of TV camera len of ultra wide-angle：f(mm) | 2.09 |
| Stop value：Fno | 2.46 |
| Angle of half field-of view：HFOV(°) | 83.00 |
| f1/f4 | -1.586 |
| f3/f | 2.359 |
| R8/R9 | 1.353 |
| CT4/CT6 | 1.001 |
| DT21/DT31 | 1.319 |
| SAG11/SAG12 | 0.620 |
| ΣT/TTL | 0.365 |
| R7/R11 | 0.928 |
Wherein：F1 is the effective focal length of the first lens；F3 is the effective focal length of the 3rd lens；F4 is the effective of the 4th lens
Focal length；F is the effective focal length of TV camera len of ultra wide-angle；R7 is the radius of curvature of the 4th lens thing side；R8 is the 4th lens picture
The radius of curvature of side；R9 is the radius of curvature of the 5th lens thing side；R11 is the radius of curvature of the 6th lens thing side；CT4
It is center thickness of the 4th lens on optical axis, CT6 is center thickness of the 6th lens on optical axis；DT21 is the second lens thing
The effective radius of side；DT31 is the effective radius of the 3rd lens thing side；SAG11 is the friendship of the first lens thing side and optical axis
O'clock to distance on the axle between the effective radius summit of the first lens thing side；SAG12 is the first lens image side surface and optical axis
Distance on intersection point to the axle between the effective radius summit of the first lens thing side；Σ T are that the first lens are any to the 6th lens
The summation of spacing distance on the countershaft of adjacent two lens；TTL is distance on the first lens thing side to the axle of imaging surface.
To realize above-mentioned design parameter, the specific design that the TV camera len of ultra wide-angle described in the present embodiment is used see the table below
17：
Table 17
In TV camera len of ultra wide-angle described in the present embodiment non-spherical lens aspherical high order term coefficient (A4, A6, A8,
A10, A12, A14, A16) see the table below 18：
Table 18
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 8.5532E-04 | -1.8148E-04 | 2.8727E-05 | 1.3449E-06 | -1.7901E-07 | -9.0256E-09 | 1.0445E-09 |
| S2 | -3.0038E-03 | -4.0182E-03 | 5.0862E-03 | -2.1021E-03 | 3.1036E-04 | -1.5037E-04 | -6.8863E-05 |
| S3 | -2.6204E-02 | 2.0398E-02 | -5.1272E-03 | -2.5097E-04 | 1.5677E-04 | -6.6914E-06 | -4.1289E-06 |
| S4 | 5.7317E-02 | 5.8908E-03 | -2.5114E-03 | 4.1822E-03 | -4.8204E-04 | -3.7583E-04 | -6.0861E-04 |
| S5 | 4.0881E-02 | -8.2233E-03 | -1.1507E-02 | 1.3185E-02 | 7.0326E-04 | 3.5938E-04 | -1.3961E-03 |
| S6 | -8.4800E-02 | 2.3267E-02 | 2.3952E-03 | 3.3865E-03 | 1.4595E-03 | -1.8739E-04 | -3.9336E-03 |
| S7 | -7.4990E-02 | -1.6231E-02 | 3.9205E-03 | -3.5390E-02 | 7.6332E-04 | -7.0611E-05 | -1.7897E-03 |
| S8 | -1.7717E-02 | -4.9430E-03 | -1.0408E-02 | -4.1823E-03 | -3.2738E-04 | 1.8312E-04 | 5.0425E-04 |
| S9 | 8.0359E-02 | 2.1434E-02 | -5.3770E-02 | 3.5752E-02 | -2.0150E-04 | -3.9861E-04 | -5.1279E-04 |
| S10 | 6.8261E-02 | -1.2355E-02 | -4.1067E-03 | 2.1343E-03 | -1.2515E-04 | -2.6486E-05 | -1.3202E-05 |
| S11 | -5.5190E-02 | 1.2715E-02 | -2.4015E-03 | 9.6772E-05 | 3.2984E-06 | 6.3539E-06 | -8.7914E-07 |
| S12 | -2.0915E-02 | -5.6593E-03 | 3.2451E-03 | -6.5120E-04 | 6.9698E-06 | 1.1191E-05 | -8.8499E-07 |
TV camera len of ultra wide-angle described in the present embodiment, not only effectively controls aberration, astigmatism, improves periphery and contrasts
Degree, obtains preferable image quality, referring to accompanying drawing 26- Figure 30, meanwhile, the angle of view and shorter system length are realized,
And Miniaturization Design and good manufacturability can be taken into account.
Embodiment seven：
Referring to accompanying drawing 31, the TV camera len of ultra wide-angle described in the present embodiment includes successively from thing side to image side：Bent with negative
Roll over the first lens L1 of power；The second lens L2 with positive refracting power；The 3rd lens L3 with positive refracting power；With positive flexion
4th lens L4 of power；The 5th lens L5 with negative refracting power；The 6th lens L6 with positive refracting power.
Wherein：The thing side S1 of the first lens L1 is convex surface, and image side surface S2 is concave surface；The thing side S3 of the second lens L2 is
Concave surface, image side surface S4 is convex surface；3rd lens L3 has thing side S5 and image side surface S6；4th lens L4 have thing side S7 and
Image side surface S8；5th lens L5 has thing side S9 and image side surface S10；The thing side S11 of the 6th lens L6 is convex surface, image side surface
S12 is concave surface；Optical filter L7 has thing side S13 and image side surface S14；TV camera len of ultra wide-angle imaging surface described in the present embodiment
S15 is located at the image side of optical filter L7, is available for installing photo-sensitive cell.
The main design parameters of the TV camera len of ultra wide-angle described in the present embodiment see the table below 19：
Table 19
Wherein：F1 is the effective focal length of the first lens；F3 is the effective focal length of the 3rd lens；F4 is the effective of the 4th lens
Focal length；F is the effective focal length of TV camera len of ultra wide-angle；R7 is the radius of curvature of the 4th lens thing side；R8 is the 4th lens picture
The radius of curvature of side；R9 is the radius of curvature of the 5th lens thing side；R11 is the radius of curvature of the 6th lens thing side；CT4
It is center thickness of the 4th lens on optical axis, CT6 is center thickness of the 6th lens on optical axis；DT21 is the second lens thing
The effective radius of side；DT31 is the effective radius of the 3rd lens thing side；SAG11 is the friendship of the first lens thing side and optical axis
O'clock to distance on the axle between the effective radius summit of the first lens thing side；SAG12 is the first lens image side surface and optical axis
Distance on intersection point to the axle between the effective radius summit of the first lens thing side；Σ T are that the first lens are any to the 6th lens
The summation of spacing distance on the countershaft of adjacent two lens；TTL is distance on the first lens thing side to the axle of imaging surface.
To realize above-mentioned design parameter, the specific design that the TV camera len of ultra wide-angle described in the present embodiment is used see the table below
20：
Table 20
| Face number | Surface type | Radius of curvature | Thickness | Material | Circular cone coefficient |
| OBJ | Sphere | It is infinite | It is infinite | ||
| S1 | It is aspherical | 13.3244 | 0.3425 | 1.53/55.8 | 0.0000 |
| S2 | It is aspherical | 1.5917 | 1.3846 | 0.0000 | |
| S3 | It is aspherical | -3.3202 | 0.7762 | 1.64/23.5 | 0.0000 |
| S4 | It is aspherical | -3.1871 | 0.2131 | 0.0000 | |
| S5 | It is aspherical | 2.6787 | 0.4624 | 1.52/64.2 | 0.0000 |
| S6 | It is aspherical | 53.5000 | 0.0976 | 0.0000 | |
| STO | Sphere | It is infinite | 0.4353 | ||
| S7 | It is aspherical | 2.5313 | 1.0053 | 1.52/64.2 | 0.0000 |
| S8 | It is aspherical | -1.8360 | 0.2289 | 0.0000 | |
| S9 | It is aspherical | -1.3788 | 0.3142 | 1.65/21.5 | 0.0000 |
| S10 | It is aspherical | -12.2406 | 0.5606 | 0.0000 | |
| S11 | It is aspherical | 2.6746 | 1.0487 | 1.52/64.2 | 0.0000 |
| S12 | It is aspherical | 3.6985 | 0.3960 | 0.0000 | |
| S13 | Sphere | It is infinite | 0.2100 | 1.52/64.2 | |
| S14 | Sphere | It is infinite | 0.5400 | ||
| S15 | Sphere | It is infinite |
In TV camera len of ultra wide-angle described in the present embodiment non-spherical lens aspherical high order term coefficient (A4, A6, A8,
A10, A12, A14, A16) see the table below 21：
Table 21
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 7.9274E-04 | -1.9223E-04 | 2.9009E-05 | 1.5016E-06 | -1.6966E-07 | -9.2672E-09 | 8.8946E-10 |
| S2 | -7.2014E-03 | -4.4849E-03 | 5.0957E-03 | -2.0538E-03 | 3.4240E-04 | -1.3681E-04 | -6.6537E-05 |
| S3 | -2.6423E-02 | 2.0182E-02 | -5.4328E-03 | -4.1935E-04 | 9.7213E-05 | -9.8508E-05 | 5.9700E-05 |
| S4 | 5.6465E-02 | 4.2647E-03 | -4.1987E-03 | 3.5183E-03 | -1.3715E-03 | -1.1302E-03 | -3.2667E-04 |
| S5 | 4.1070E-02 | -8.8281E-03 | -1.2124E-02 | 1.2927E-02 | 8.8822E-06 | -4.1083E-03 | -1.7029E-02 |
| S6 | -8.5060E-02 | 2.4637E-02 | 4.6413E-03 | 4.9973E-03 | -7.1088E-05 | -9.1145E-03 | -2.7580E-02 |
| S7 | -7.5449E-02 | -1.6145E-02 | 5.2637E-03 | -3.4229E-02 | 9.4336E-04 | -4.4071E-04 | -1.0603E-03 |
| S8 | -1.6585E-02 | -4.7477E-03 | -1.0768E-02 | -4.3075E-03 | -2.1200E-04 | 4.0166E-04 | 7.2038E-04 |
| S9 | 8.0582E-02 | 2.1420E-02 | -5.3882E-02 | 3.5582E-02 | -3.7000E-04 | -5.4787E-04 | -6.1051E-04 |
| S10 | 6.8431E-02 | -1.2242E-02 | -4.0797E-03 | 2.1342E-03 | -1.3114E-04 | -3.2461E-05 | -1.7880E-05 |
| S11 | -5.5109E-02 | 1.2729E-02 | -2.4038E-03 | 9.4458E-05 | 3.2984E-06 | 6.3445E-06 | -8.7464E-07 |
| S12 | -2.0874E-02 | -5.6593E-03 | 3.2450E-03 | -6.5122E-04 | 6.9641E-06 | 1.1191E-05 | -8.8505E-07 |
TV camera len of ultra wide-angle described in the present embodiment, not only effectively controls aberration, astigmatism, improves periphery and contrasts
Degree, obtains preferable image quality, referring to accompanying drawing 32- Figure 35, meanwhile, the angle of view and shorter system length are realized,
And Miniaturization Design and good manufacturability can be taken into account.
Embodiment eight：
Referring to accompanying drawing 36, the TV camera len of ultra wide-angle described in the present embodiment includes successively from thing side to image side：Bent with negative
Roll over the first lens L1 of power；The second lens L2 with positive refracting power；The 3rd lens L3 with positive refracting power；With positive flexion
4th lens L4 of power；The 5th lens L5 with negative refracting power；The 6th lens L6 with positive refracting power.
Wherein：The thing side S1 of the first lens L1 is convex surface, and image side surface S2 is concave surface；The thing side S3 of the second lens L2 is
Concave surface, image side surface S4 is convex surface；3rd lens L3 has thing side S5 and image side surface S6；4th lens L4 have thing side S7 and
Image side surface S8；5th lens L5 has thing side S9 and image side surface S10；The thing side S11 of the 6th lens L6 is convex surface, image side surface
S12 is concave surface；Optical filter L7 has thing side S13 and image side surface S14；TV camera len of ultra wide-angle imaging surface described in the present embodiment
S15 is located at the image side of optical filter L7, is available for installing photo-sensitive cell.
The main design parameters of the TV camera len of ultra wide-angle described in the present embodiment see the table below 22：
Table 22
| Title | Numerical value |
| The effective focal length of the first lens：f1(mm) | -4.28 |
| The effective focal length of the second lens：f2(mm) | 19.26 |
| The effective focal length of the 3rd lens：f3(mm) | 4.35 |
| The effective focal length of the 4th lens：f4(mm) | 2.68 |
| The effective focal length of the 5th lens：f5(mm) | -2.71 |
| The effective focal length of the 6th lens：f6(mm) | 8.66 |
| The effective focal length of TV camera len of ultra wide-angle：f(mm) | 2.35 |
| Stop value：Fno | 2.72 |
| Angle of half field-of view：HFOV(°) | 65.00 |
| f1/f4 | -1.597 |
| f3/f | 1.852 |
| R8/R9 | 1.033 |
| CT4/CT6 | 0.920 |
| DT21/DT31 | 1.305 |
| SAG11/SAG12 | 0.518 |
| ΣT/TTL | 0.349 |
Wherein：F1 is the effective focal length of the first lens；F3 is the effective focal length of the 3rd lens；F4 is the effective of the 4th lens
Focal length；F is the effective focal length of TV camera len of ultra wide-angle；R8 is the radius of curvature of the 4th lens image side surface；R9 is the 5th lens thing
The radius of curvature of side；CT4 is center thickness of the 4th lens on optical axis, and CT6 is that center of the 6th lens on optical axis is thick
Degree；DT21 is the effective radius of the second lens thing side；DT31 is the effective radius of the 3rd lens thing side；SAG11 is first
Distance on the intersection point of lens thing side and optical axis to the axle between the effective radius summit of the first lens thing side；SAG12 is
Distance on the intersection point of one lens image side surface and optical axis to the axle between the effective radius summit of the first lens thing side；Σ T are the
The summation of spacing distance on one lens to the countershaft of the lens of the 6th lens arbitrary neighborhood two；TTL be the first lens thing side into
Distance on the axle of image planes.
To realize above-mentioned design parameter, the specific design that the TV camera len of ultra wide-angle described in the present embodiment is used see the table below
23：
Table 23
| Face number | Surface type | Radius of curvature | Thickness | Material | Circular cone coefficient |
| OBJ | Sphere | It is infinite | It is infinite | ||
| S1 | It is aspherical | 8.6383 | 0.3008 | 1.53/55.8 | 0.0000 |
| S2 | It is aspherical | 1.7894 | 1.4891 | 0.0000 | |
| S3 | It is aspherical | -3.5175 | 0.8842 | 1.64/23.5 | 0.0000 |
| S4 | It is aspherical | -3.0046 | 0.1433 | 0.0000 | |
| STO | It is aspherical | 4.4196 | 0.4151 | 1.52/64.2 | 0.0000 |
| S5 | It is aspherical | -4.9283 | 0.0526 | 0.0000 | |
| S6 | Sphere | It is infinite | 0.3723 | ||
| S7 | It is aspherical | -500.0000 | 1.0990 | 1.52/64.2 | 0.0000 |
| S8 | It is aspherical | -1.4564 | 0.2442 | 0.0000 | |
| S9 | It is aspherical | -1.4095 | 0.3207 | 1.65/21.5 | 0.0000 |
| S10 | It is aspherical | -7.6932 | 0.6567 | 0.0000 | |
| S11 | It is aspherical | 2.6154 | 1.1952 | 1.52/64.2 | 0.0000 |
| S12 | It is aspherical | 4.9280 | 0.5594 | 0.0000 | |
| S13 | Sphere | It is infinite | 0.2100 | 1.52/64.2 | |
| S14 | Sphere | It is infinite | 0.5400 | ||
| S15 | Sphere | It is infinite |
In TV camera len of ultra wide-angle described in the present embodiment non-spherical lens aspherical high order term coefficient (A4, A6, A8,
A10, A12, A14, A16) see the table below 24：
Table 24
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | -1.0806E-04 | -2.3098E-04 | 2.8621E-05 | 1.3403E-06 | -2.0404E-07 | -1.4287E-08 | 2.3085E-10 |
| S2 | 3.0166E-03 | 4.8426E-04 | 7.0555E-03 | -1.5839E-03 | 4.2351E-04 | -1.1805E-04 | -5.0561E-05 |
| S3 | -2.5655E-02 | 2.0509E-02 | -5.6550E-03 | -5.1579E-04 | 1.0286E-04 | 4.6114E-05 | 8.3954E-05 |
| S4 | 5.7965E-02 | 3.5004E-03 | -3.1941E-03 | 5.0744E-03 | 4.8027E-04 | -3.5945E-05 | -9.0205E-04 |
| S5 | 3.7760E-02 | -1.0386E-02 | -1.1962E-02 | 1.0944E-02 | -9.5631E-04 | -5.8072E-03 | -6.1084E-03 |
| S6 | -8.0618E-02 | 2.4755E-02 | -5.9566E-04 | 8.2744E-04 | 4.8333E-03 | 1.2562E-02 | 1.8146E-02 |
| S7 | -8.5969E-02 | -2.7596E-02 | 3.2781E-03 | -2.7977E-02 | 6.1735E-03 | 3.1502E-03 | 5.1564E-02 |
| S8 | -1.3347E-02 | 2.7076E-03 | -4.2919E-03 | -7.1164E-04 | 1.1861E-03 | 5.0690E-04 | 1.2926E-04 |
| S9 | 8.8503E-02 | 2.0491E-02 | -5.6609E-02 | 3.3426E-02 | -1.5968E-03 | -9.7978E-04 | -5.0703E-04 |
| S10 | 6.3064E-02 | -1.2347E-02 | -3.8196E-03 | 2.2764E-03 | -8.5468E-05 | -2.9287E-05 | -2.7773E-05 |
| S11 | -5.6943E-02 | 1.2437E-02 | -2.4311E-03 | 9.8862E-05 | 3.2984E-06 | 6.3574E-06 | -8.7880E-07 |
| S12 | -2.2575E-02 | -5.6593E-03 | 3.2480E-03 | -6.5025E-04 | 7.4266E-06 | 1.1213E-05 | -8.8409E-07 |
TV camera len of ultra wide-angle described in the present embodiment, not only effectively controls aberration, astigmatism, improves periphery and contrasts
Degree, obtains preferable image quality, referring to accompanying drawing 37- Figure 40, meanwhile, the angle of view and shorter system length are realized,
And Miniaturization Design and good manufacturability can be taken into account.
Above example is only the preferable specific implementation lifted to absolutely prove the utility model TV camera len of ultra wide-angle
Mode, is not intended to limit protection domain of the present utility model.Those skilled in the art are on the basis of the utility model
The equivalent substitute made or conversion, within protection domain of the present utility model.Protection domain of the present utility model is with right
The content that claim is recorded is defined.
Claims (10)
1. a kind of TV camera len of ultra wide-angle, it is characterised in that：Included successively by thing side to image side：
The first lens with negative refracting power；
The second lens with positive refracting power,
The 3rd lens with positive refracting power；
The 4th lens with positive refracting power；
The 5th lens with negative refracting power；
The 6th lens with positive refracting power, its thing side is convex surface, and image side surface is concave surface；
Meet following relationship simultaneously：-2<f1/f4<- 1.5, wherein, f1 is the effective focal length of the first lens；F4 is the 4th lens
Effective focal length.
2. TV camera len of ultra wide-angle as claimed in claim 1, it is characterised in that meet following relationship：1.8<f3/f<3, its
In, f3 is the effective focal length of the 3rd lens；F is the effective focal length of TV camera len of ultra wide-angle.
3. TV camera len of ultra wide-angle as claimed in claim 1, it is characterised in that meet following relationship：1≤R8/R9<1.5,
Wherein, R8 is the radius of curvature of the 4th lens image side surface；R9 is the radius of curvature of the 5th lens thing side.
4. TV camera len of ultra wide-angle as claimed in claim 1, it is characterised in that meet following relationship：0.8<CT4/CT6<
1.2, wherein, CT4 is center thickness of the 4th lens on optical axis, and CT6 is center thickness of the 6th lens on optical axis.
5. TV camera len of ultra wide-angle as claimed in claim 1, it is characterised in that meet following relationship：1<DT21/DT31<
1.5, wherein, DT21 is the effective radius of the second lens thing side；DT31 is the effective radius of the 3rd lens thing side.
6. TV camera len of ultra wide-angle as claimed in claim 1, it is characterised in that meet following relationship：0.4<SAG11/
SAG12<0.7；Wherein, SAG11 is the intersection point of the first lens thing side and optical axis to the effective radius top of the first lens thing side
Distance on axle between point；SAG12 is the intersection point of the first lens image side surface and optical axis to the effective radius of the first lens thing side
Distance on axle between summit.
7. TV camera len of ultra wide-angle as claimed in claim 1, it is characterised in that meet following relationship：0.2<ΣT/TTL<
0.5, wherein, Σ T are the summation of spacing distance on the first lens to the countershaft of the lens of the 6th lens arbitrary neighborhood two；TTL is
Distance on one lens thing side to the axle of imaging surface.
8. TV camera len of ultra wide-angle as claimed in claim 1, it is characterised in that meet following relationship：0.5<R7/R11<
1.1, wherein, R7 is the radius of curvature of the 4th lens thing side；R11 is the radius of curvature of the 6th lens thing side.
9. TV camera len of ultra wide-angle as claimed in claim 1, it is characterised in that：First lens thing side is convex surface, image side surface
It is concave surface.
10. TV camera len of ultra wide-angle as claimed in claim 9, it is characterised in that：Second lens thing side is concave surface, image side surface
It is convex surface.
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| CN201621116397.1U CN206193323U (en) | 2016-10-12 | 2016-10-12 | Ultra -extensive angle camera lens |
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| CN201621116397.1U CN206193323U (en) | 2016-10-12 | 2016-10-12 | Ultra -extensive angle camera lens |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106443969A (en) * | 2016-10-12 | 2017-02-22 | 浙江舜宇光学有限公司 | Ultra-wide angle photographing lens |
| CN109116519A (en) * | 2018-10-19 | 2019-01-01 | 中山联合光电科技股份有限公司 | A kind of large aperture wide-angle monitoring imaging system |
| CN111830672A (en) * | 2019-04-18 | 2020-10-27 | 宁波舜宇车载光学技术有限公司 | Optical lens and imaging apparatus |
| CN111929861A (en) * | 2020-09-16 | 2020-11-13 | 厦门力鼎光电股份有限公司 | High definition fisheye lens |
| WO2021128261A1 (en) * | 2019-12-27 | 2021-07-01 | 诚瑞光学(常州)股份有限公司 | Image-capture optical lens |
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- 2016-10-12 CN CN201621116397.1U patent/CN206193323U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106443969A (en) * | 2016-10-12 | 2017-02-22 | 浙江舜宇光学有限公司 | Ultra-wide angle photographing lens |
| CN106443969B (en) * | 2016-10-12 | 2019-04-19 | 浙江舜宇光学有限公司 | TV camera len of ultra wide-angle |
| CN109116519A (en) * | 2018-10-19 | 2019-01-01 | 中山联合光电科技股份有限公司 | A kind of large aperture wide-angle monitoring imaging system |
| CN109116519B (en) * | 2018-10-19 | 2024-01-09 | 中山联合光电科技股份有限公司 | Large-aperture wide-angle monitoring imaging system |
| CN111830672A (en) * | 2019-04-18 | 2020-10-27 | 宁波舜宇车载光学技术有限公司 | Optical lens and imaging apparatus |
| CN111830672B (en) * | 2019-04-18 | 2021-12-17 | 宁波舜宇车载光学技术有限公司 | Optical lens and imaging apparatus |
| WO2021128261A1 (en) * | 2019-12-27 | 2021-07-01 | 诚瑞光学(常州)股份有限公司 | Image-capture optical lens |
| CN111929861A (en) * | 2020-09-16 | 2020-11-13 | 厦门力鼎光电股份有限公司 | High definition fisheye lens |
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