CN106443969B - TV camera len of ultra wide-angle - Google Patents
TV camera len of ultra wide-angle Download PDFInfo
- Publication number
- CN106443969B CN106443969B CN201610889821.4A CN201610889821A CN106443969B CN 106443969 B CN106443969 B CN 106443969B CN 201610889821 A CN201610889821 A CN 201610889821A CN 106443969 B CN106443969 B CN 106443969B
- Authority
- CN
- China
- Prior art keywords
- lens
- object side
- ultra wide
- angle
- camera len
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
- G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
- G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Abstract
TV camera len of ultra wide-angle of the present invention successively includes by object side to image side: the first lens with negative refracting power；The second lens with positive refracting power, the third 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, object side are convex surface, and image side surface is concave surface；Meet following relationship: -2 < f1/f4 < -1.5 simultaneously, wherein f1 is the effective focal length of the first lens；F4 is the effective focal length of the 4th lens.It is advantageously implemented ultra-wide angle, improve relative illumination while realizing miniaturization using this structure.The focal length and face type reasonable disposition of each lens help to promote the angle of view and periphery relative illumination, help to shorten camera lens overall length, meet ultrathin requirement.
Description
Technical field
The present invention relates to a kind of TV camera len of ultra wide-angle, the TV camera len of ultra wide-angle being especially made of six eyeglasses.
Background technique
In recent years, it with the development of the chip technologies such as CCD or CMOS, minimizes so that optical imaging system is gradually past, is light
Quantization and the development of high pixel neighborhoods.More and more electronic products also have the field range of optical imaging system more next in the market
Higher requirement.In order to meet these trend, for be applied to all kinds of portable electronic products on optical imaging system also into
One step requires miniaturization, high image quality and wide angle.The patent of Patent No. " CN104238076A " proposes a kind of light
System.For the camera lens in the case where guaranteeing high-resolution, relative illumination is higher.But the field angle of the optical system is smaller,
The characteristics of camera lens overall length is too long, wide angle and miniaturization still has the space that can be advanced optimized.
Summary of the invention
The purpose of the present invention is to provide a kind of high imaging qualities, the TV camera len of ultra wide-angle of miniaturization.
TV camera len of ultra wide-angle of the present invention successively includes by object side to image side: first with negative refracting power is saturating
Mirror；The second lens with positive refracting power, the third lens with positive refracting power；The 4th lens with positive refracting power；Have
5th lens of negative refracting power；The 6th lens with positive refracting power, object side are convex surface, and image side surface is concave surface；It is full simultaneously
Sufficient following relationship: -2 < f1/f4 < -1.5, wherein f1 is the effective focal length of the first lens；F4 is effective coke of the 4th lens
Away from.It is advantageously implemented ultra-wide angle, improve relative illumination while realizing miniaturization using this structure.
Further, TV camera len of ultra wide-angle of the present invention meets following relationship: 1.8 < f3/f < 3, wherein f3
For the effective focal length of the third lens；F is the effective focal length of TV camera len of ultra wide-angle.By the focal length of reasonable disposition the third lens,
The color difference and monochromatic aberration for being conducive to correction system, realize the balance of various aberrations.
Further, TV camera len of ultra wide-angle of the present invention meets 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 object side.It is saturating by reasonable disposition the 4th
The radius of curvature of mirror, the 5th lens is conducive to the aberration control of optical system, can obtain in the case where wide-angle lesser abnormal
Become.
Further, TV camera len of ultra wide-angle of the present invention meets following relationship: 0.8 < CT4/CT6 < 1.2,
In, CT4 is center thickness of the 4th lens on optical axis, and CT6 is center thickness of the 6th lens on optical axis.By rationally matching
The center thickness for setting the 4th lens and the 6th lens advantageously ensures that the feature of camera lens miniaturization.
Further, TV camera len of ultra wide-angle of the present invention meets following relationship: 1 < DT21/DT31 < 1.5,
In, DT21 is the effective radius of the second lens object side；DT31 is the effective radius of the third lens object side.Using this design
Be conducive to control size, guarantee the demand of miniaturization, while being also beneficial to lens assembling.
Further, TV camera len of ultra wide-angle of the present invention meets following relationship: 0.4 < SAG11/SAG12 <
0.7；Wherein, SAG11 is the intersection point of the first lens object side and optical axis between the effective radius vertex of the first lens object side
Axis on distance；SAG12 be the first lens image side surface and optical axis intersection point to the first lens object side effective radius vertex it
Between axis on distance.It is advantageously implemented the wide angle of the camera lens using this design, while advantageously ensuring that relative illumination.
Further, TV camera len of ultra wide-angle of the present invention meets following relationship: T/TTL < 0.5 0.2 < Σ,
In, the summation of Σ T spacing distance on axis between two lens of the first lens to the 6th lens arbitrary neighborhood；TTL is the first lens
Distance on object side to the axis of imaging surface.At same size (TTL), interval is too long, and it will cause single lens center thickness point
Cloth is uneven, while being unfavorable for minimizing；Interval is too short, is not easy to guarantee assemblage, off-axis aberration is also not susceptible to correct, increase simultaneously
Add the risk for generating ghost image, craftsmanship and image quality can be combined by meeting above formula.
Further, TV camera len of ultra wide-angle of the present invention meets following relationship: 0.5 < R7/R11 < 1.1,
In, R7 is the radius of curvature of the 4th lens object side；R11 is the radius of curvature of the 6th lens object side.Using this design energy
Enough preferable control chromatic longitudiinal aberrations, avoid the introducing of color difference aspect senior aberration.
Further, the first lens object side in TV camera len of ultra wide-angle of the present invention is convex surface, and image side surface is
Concave surface.First lens use falcate, and obviously bend towards object side, are conducive to expand field angle.
Further, the second lens object side in TV camera len of ultra wide-angle of the present invention is concave surface, and image side surface is
Convex surface.By the face type of the first lens of reasonable disposition and the second lens, camera lens susceptibility can effectively reduce, and be conducive to processing.
Beneficial effects of the present invention are to use 6 plastic aspherical element eyeglasses, and focal length and the face type of each lens are rationally matched
It sets, helps to promote the angle of view and periphery relative illumination, help to shorten camera lens overall length, meet ultrathin requirement.
The present invention is described further with reference to the accompanying drawings and examples.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of TV camera len of ultra wide-angle described in embodiment one；
Fig. 2 is chromatic curve figure on the axis of TV camera len of ultra wide-angle described in embodiment one；
Fig. 3 is the astigmatism curve graph of TV camera len of ultra wide-angle described in embodiment one；
Fig. 4 is the ratio chromatism, curve graph of TV camera len of ultra wide-angle described in embodiment one；
Fig. 5 is the relative illumination curve graph of TV camera len of ultra wide-angle described in embodiment one；
Fig. 6 is the structural schematic diagram of TV camera len of ultra wide-angle described in embodiment two；
Fig. 7 is chromatic curve figure on the axis of TV camera len of ultra wide-angle described in embodiment two；
Fig. 8 is the astigmatism curve graph of TV camera len of ultra wide-angle described in embodiment two；
Fig. 9 is the ratio chromatism, curve graph of TV camera len of ultra wide-angle described in embodiment two；
Figure 10 is the relative illumination curve graph of TV camera len of ultra wide-angle described in embodiment two；
Figure 11 is the structural schematic diagram of TV camera len of ultra wide-angle described in embodiment three；
Figure 12 is chromatic curve figure on the axis of TV camera len of ultra wide-angle described in embodiment three；
Figure 13 is the astigmatism curve graph of TV camera len of ultra wide-angle described in embodiment three；
Figure 14 is the ratio chromatism, curve graph of TV camera len of ultra wide-angle described in embodiment three；
Figure 15 is the relative illumination curve graph of TV camera len of ultra wide-angle described in embodiment three；
Figure 16 is the structural schematic diagram of TV camera len of ultra wide-angle described in example IV；
Figure 17 is chromatic curve figure on the axis of TV camera len of ultra wide-angle described in example IV；
Figure 18 is the astigmatism curve graph of TV camera len of ultra wide-angle described in example IV；
Figure 19 is the ratio chromatism, curve graph of TV camera len of ultra wide-angle described in example IV；
Figure 20 is the relative illumination curve graph of TV camera len of ultra wide-angle described in example IV；
Figure 21 is the structural schematic diagram of TV camera len of ultra wide-angle described in embodiment five；
Figure 22 is chromatic curve figure on the axis of TV camera len of ultra wide-angle described in embodiment five；
Figure 23 is the astigmatism curve graph of TV camera len of ultra wide-angle described in embodiment five；
Figure 24 is the ratio chromatism, curve graph of TV camera len of ultra wide-angle described in embodiment five；
Figure 25 is the relative illumination curve graph of TV camera len of ultra wide-angle described in embodiment five；
Figure 26 is the structural schematic diagram of TV camera len of ultra wide-angle described in embodiment six；
Figure 27 is chromatic curve figure on the axis of TV camera len of ultra wide-angle described in embodiment six；
Figure 28 is the astigmatism curve graph of TV camera len of ultra wide-angle described in embodiment six；
Figure 29 is the ratio chromatism, curve graph of TV camera len of ultra wide-angle described in embodiment six；
Figure 30 is the relative illumination curve graph of TV camera len of ultra wide-angle described in embodiment six；
Figure 31 is the structural schematic diagram of TV camera len of ultra wide-angle described in embodiment seven；
Figure 32 is chromatic curve figure on the axis of TV camera len of ultra wide-angle described in embodiment seven；
Figure 33 is the astigmatism curve graph of TV camera len of ultra wide-angle described in embodiment seven；
Figure 34 is the ratio chromatism, curve graph of TV camera len of ultra wide-angle described in embodiment seven；
Figure 35 is the relative illumination curve graph of TV camera len of ultra wide-angle described in embodiment seven；
Figure 36 is the structural schematic diagram of TV camera len of ultra wide-angle described in embodiment eight；
Figure 37 is chromatic curve figure on the axis of TV camera len of ultra wide-angle described in embodiment eight；
Figure 38 is the astigmatism curve graph of TV camera len of ultra wide-angle described in embodiment eight；
Figure 39 is the ratio chromatism, curve graph of TV camera len of ultra wide-angle described in embodiment eight；
Figure 40 is the relative illumination curve graph of TV camera len of ultra wide-angle described in embodiment eight.
Specific embodiment
Embodiment one:
Referring to attached drawing 1, TV camera len of ultra wide-angle described in the present embodiment successively includes: to have negative bend from object side to image side
Roll over the first lens L1 of power；The second lens L2 with positive refracting power；The third 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 object side S1 of the first lens L1 is convex surface, and image side surface S2 is concave surface；The object side S3 of second lens L2 is
Concave surface, image side surface S4 are convex surface；The third lens L3 has object side S5 and image side surface S6；4th lens L4 have object side S7 and
Image side surface S8；5th lens L5 has object side S9 and image side surface S10；The object side S11 of 6th lens L6 is convex surface, image side surface
S12 is concave surface；Optical filter L7 has object 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, for installing photosensitive element.
The main design parameters of 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 third 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 object side；R8 is the 4th lens picture
The radius of curvature of side；R9 is the radius of curvature of the 5th lens object side；R11 is the radius of curvature of the 6th lens object side；CT4
For 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 object
The effective radius of side；DT31 is the effective radius of the third lens object side；SAG11 is the friendship of the first lens object side and optical axis
O'clock to distance on the axis between the effective radius vertex of the first lens object side；SAG12 is the first lens image side surface and optical axis
Distance on intersection point to the axis between the effective radius vertex of the first lens object side；Σ T is that the first lens are any to the 6th lens
Between adjacent two lens on axis spacing distance summation；TTL is distance on the first lens object side to the axis of imaging surface.
To realize above-mentioned design parameter, specifically designing used by TV camera len of ultra wide-angle described in the present embodiment be see the table below
2:
Table 2
| Face number | Surface type | Radius of curvature | Thickness | Material | Circular cone coefficient |
| OBJ | Spherical surface | 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 | Spherical surface | 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 | Spherical surface | It is infinite | 0.2100 | ||
| S14 | Spherical surface | It is infinite | 0.6000 | ||
| S15 | Spherical surface | It is infinite |
In TV camera len of ultra wide-angle described in the present embodiment non-spherical lens aspherical high-order coefficient (A4, A6, A8,
A10, A12) it 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 color difference, astigmatism, improves periphery and contrasts
Degree, obtains preferable image quality, referring to attached drawing 2- Fig. 5, meanwhile, the angle of view and shorter system length are realized, and
Miniaturization Design and good craftsmanship can be taken into account.
Embodiment two:
Referring to attached drawing 6, TV camera len of ultra wide-angle described in the present embodiment successively includes: to have negative bend from object side to image side
Roll over the first lens L1 of power；The second lens L2 with positive refracting power；The third 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 object side S1 of the first lens L1 is convex surface, and image side surface S2 is concave surface；The object side S3 of second lens L2 is
Concave surface, image side surface S4 are convex surface；The third lens L3 has object side S5 and image side surface S6；4th lens L4 have object side S7 and
Image side surface S8；5th lens L5 has object side S9 and image side surface S10；The object side S11 of 6th lens L6 is convex surface, image side surface
S12 is concave surface；Optical filter L7 has object 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, for installing photosensitive element.
The main design parameters of TV camera len of ultra wide-angle described in the present embodiment see the table below 4:
Table 4
Wherein: f1 is the effective focal length of the first lens；F3 is the effective focal length of the third 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 object side；R8 is the 4th lens picture
The radius of curvature of side；R9 is the radius of curvature of the 5th lens object side；R11 is the radius of curvature of the 6th lens object side；CT4
For 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 object
The effective radius of side；DT31 is the effective radius of the third lens object side；SAG11 is the friendship of the first lens object side and optical axis
O'clock to distance on the axis between the effective radius vertex of the first lens object side；SAG12 is the first lens image side surface and optical axis
Distance on intersection point to the axis between the effective radius vertex of the first lens object side；Σ T is that the first lens are any to the 6th lens
Between adjacent two lens on axis spacing distance summation；TTL is distance on the first lens object side to the axis of imaging surface.
To realize above-mentioned design parameter, specifically designing used by TV camera len of ultra wide-angle described in the present embodiment be see the table below
5:
Table 5
| Face number | Surface type | Radius of curvature | Thickness | Material | Circular cone coefficient |
| OBJ | Spherical surface | 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 | Spherical surface | 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 | Spherical surface | It is infinite | 0.2100 | 1.52/64.2 | |
| S14 | Spherical surface | It is infinite | 0.5400 | ||
| S15 | Spherical surface | It is infinite |
In TV camera len of ultra wide-angle described in the present embodiment non-spherical lens aspherical high-order coefficient (A4, A6, A8,
A10, A12, A14, A16) it see the table below 6:
Table 6
TV camera len of ultra wide-angle described in the present embodiment not only effectively controls color difference, astigmatism, improves periphery and contrasts
Degree, obtains preferable image quality, referring to attached drawing 7- Figure 10, meanwhile, the angle of view and shorter system length are realized, and
Miniaturization Design and good craftsmanship can be taken into account.
Embodiment three:
Referring to attached drawing 11, TV camera len of ultra wide-angle described in the present embodiment successively includes: to have negative bend from object side to image side
Roll over the first lens L1 of power；The second lens L2 with positive refracting power；The third 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 object side S1 of first lens L1 is convex surface, and image side surface S2 is concave surface；The object side S3 of second lens L2 is concave surface,
Image side surface S4 is convex surface；The third lens L3 has object side S5 and image side surface S6；4th lens L4 has object side S7 and image side
Face S8；5th lens L5 has object side S8 and image side surface S9；The object side S10 of 6th lens L6 is convex surface, and image side surface S11 is
Concave surface；Optical filter L7 has object side S12 and image side surface S13；TV camera len of ultra wide-angle imaging surface S14 described in the present embodiment
In the image side of optical filter L7, for installing photosensitive element.
The main design parameters of 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 first lens: f1 (mm) | -3.45 |
| The effective focal length of second lens: f2 (mm) | 20.19 |
| The effective focal length of the third lens: f3 (mm) | 5.19 |
| The effective focal length of 4th lens: f4 (mm) | 2.01 |
| The effective focal length of 5th lens: f5 (mm) | -2.24 |
| The effective focal length of 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 third 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 object side；R8 is the 4th lens picture
The radius of curvature of side；R9 is the radius of curvature of the 5th lens object side；R11 is the radius of curvature of the 6th lens object side；CT4
For 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 object
The effective radius of side；DT31 is the effective radius of the third lens object side；SAG11 is the friendship of the first lens object side and optical axis
O'clock to distance on the axis between the effective radius vertex of the first lens object side；SAG12 is the first lens image side surface and optical axis
Distance on intersection point to the axis between the effective radius vertex of the first lens object side；Σ T is that the first lens are any to the 6th lens
Between adjacent two lens on axis spacing distance summation；TTL is distance on the first lens object side to the axis of imaging surface.
To realize above-mentioned design parameter, specifically designing used by TV camera len of ultra wide-angle described in the present embodiment be 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 coefficient (A4, A6, A8,
A10, A12, A14, A16) it 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 color difference, astigmatism, improves periphery and contrasts
Degree, obtains preferable image quality, referring to attached drawing 12- Figure 15, meanwhile, the angle of view and shorter system length are realized,
And Miniaturization Design and good craftsmanship can be taken into account.
Example IV:
Referring to attached drawing 16, TV camera len of ultra wide-angle described in the present embodiment successively includes: to have negative bend from object side to image side
Roll over the first lens L1 of power；The second lens L2 with positive refracting power；The third 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 object side S1 of the first lens L1 is convex surface, and image side surface S2 is concave surface；The object side S3 of second lens L2 is
Concave surface, image side surface S4 are convex surface；The third lens L3 has object side S5 and image side surface S6；4th lens L4 have object side S7 and
Image side surface S8；5th lens L5 has object side S9 and image side surface S10；The object side S11 of 6th lens L6 is convex surface, image side surface
S12 is concave surface；Optical filter L7 has object 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, for installing photosensitive element.
The main design parameters of TV camera len of ultra wide-angle described in the present embodiment see the table below 10:
Table 10
| Title | Numerical value |
| The effective focal length of first lens: f1 (mm) | -3.40 |
| The effective focal length of second lens: f2 (mm) | 17.72 |
| The effective focal length of the third lens: f3 (mm) | 4.68 |
| The effective focal length of 4th lens: f4 (mm) | 2.13 |
| The effective focal length of 5th lens: f5 (mm) | -2.44 |
| The effective focal length of 6th lens: f6 (mm) | 13.62 |
| The effective focal length of TV camera len of ultra wide-angle: f (mm) | 2.14 |
| Stop value: Fno | 2.48 |
| Angle of half field-of view: HFOV (°) | 75.00 |
| f1/f4 | -1.596 |
| f3/f | 2.190 |
| R8/R9 | 1.255 |
| CT4/CT6 | 0.874 |
| DT21/DT31 | 1.363 |
| SAG11/SAG12 | 0.456 |
| ΣT/TTL | 0.337 |
| R7/R11 | 1.047 |
Wherein: f1 is the effective focal length of the first lens；F3 is the effective focal length of the third 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 object side；R8 is the 4th lens picture
The radius of curvature of side；R9 is the radius of curvature of the 5th lens object side；R11 is the radius of curvature of the 6th lens object side；CT4
For 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 object
The effective radius of side；DT31 is the effective radius of the third lens object side；SAG11 is the friendship of the first lens object side and optical axis
O'clock to distance on the axis between the effective radius vertex of the first lens object side；SAG12 is the first lens image side surface and optical axis
Distance on intersection point to the axis between the effective radius vertex of the first lens object side；Σ T is that the first lens are any to the 6th lens
Between adjacent two lens on axis spacing distance summation；TTL is distance on the first lens object side to the axis of imaging surface.
To realize above-mentioned design parameter, specifically designing used by TV camera len of ultra wide-angle described in the present embodiment be see the table below
11:
Table 11
| Face number | Surface type | Radius of curvature | Thickness | Material | Circular cone coefficient |
| OBJ | Spherical surface | 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 | Spherical surface | 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 | Spherical surface | It is infinite | 0.2100 | 1.52/64.2 | |
| S14 | Spherical surface | It is infinite | 0.5400 | ||
| S15 | Spherical surface | It is infinite |
In TV camera len of ultra wide-angle described in the present embodiment non-spherical lens aspherical high-order coefficient (A4, A6, A8,
A10, A12, A14, A16) it 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 color difference, astigmatism, improves periphery and contrasts
Degree, obtains preferable image quality, referring to attached drawing 17- Figure 20, meanwhile, the angle of view and shorter system length are realized,
And Miniaturization Design and good craftsmanship can be taken into account.
Embodiment five:
Referring to attached drawing 21, TV camera len of ultra wide-angle described in the present embodiment successively includes: to have negative bend from object side to image side
Roll over the first lens L1 of power；The second lens L2 with positive refracting power；The third 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 object side S1 of the first lens L1 is convex surface, and image side surface S2 is concave surface；The object side S3 of second lens L2 is
Concave surface, image side surface S4 are convex surface；The third lens L3 has object side S5 and image side surface S6；4th lens L4 have object side S7 and
Image side surface S8；5th lens L5 has object side S9 and image side surface S10；The object side S11 of 6th lens L6 is convex surface, image side surface
S12 is concave surface；Optical filter L7 has object 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, for installing photosensitive element.
The main design parameters of 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 third 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 object side；R8 is the 4th lens picture
The radius of curvature of side；R9 is the radius of curvature of the 5th lens object side；R11 is the radius of curvature of the 6th lens object side；CT4
For 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 object
The effective radius of side；DT31 is the effective radius of the third lens object side；SAG11 is the friendship of the first lens object side and optical axis
O'clock to distance on the axis between the effective radius vertex of the first lens object side；SAG12 is the first lens image side surface and optical axis
Distance on intersection point to the axis between the effective radius vertex of the first lens object side；Σ T is that the first lens are any to the 6th lens
Between adjacent two lens on axis spacing distance summation；TTL is distance on the first lens object side to the axis of imaging surface.
To realize above-mentioned design parameter, specifically designing used by TV camera len of ultra wide-angle described in the present embodiment be see the table below
14:
Table 14
| Face number | Surface type | Radius of curvature | Thickness | Material | Circular cone coefficient |
| OBJ | Spherical surface | 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 | Spherical surface | 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 | Spherical surface | It is infinite | 0.2100 | 1.52/64.2 | |
| S14 | Spherical surface | It is infinite | 0.5400 | ||
| S15 | Spherical surface | It is infinite |
In TV camera len of ultra wide-angle described in the present embodiment non-spherical lens aspherical high-order coefficient (A4, A6, A8,
A10, A12, A14, A16) it 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 color difference, astigmatism, improves periphery and contrasts
Degree, obtains preferable image quality, referring to attached drawing 22- Figure 25, meanwhile, the angle of view and shorter system length are realized,
And Miniaturization Design and good craftsmanship can be taken into account.
Embodiment six:
Referring to attached drawing 26, TV camera len of ultra wide-angle described in the present embodiment successively includes: to have negative bend from object side to image side
Roll over the first lens L1 of power；The second lens L2 with positive refracting power；The third 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 object side S1 of the first lens L1 is convex surface, and image side surface S2 is concave surface；The object side S3 of second lens L2 is
Concave surface, image side surface S4 are convex surface；The third lens L3 has object side S5 and image side surface S6；4th lens L4 have object side S7 and
Image side surface S8；5th lens L5 has object side S9 and image side surface S10；The object side S11 of 6th lens L6 is convex surface, image side surface
S12 is concave surface；Optical filter L7 has object 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, for installing photosensitive element.
The main design parameters of 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 first lens: f1 (mm) | -3.38 |
| The effective focal length of second lens: f2 (mm) | 39.24 |
| The effective focal length of the third lens: f3 (mm) | 4.94 |
| The effective focal length of 4th lens: f4 (mm) | 2.13 |
| The effective focal length of 5th lens: f5 (mm) | -2.37 |
| The effective focal length of 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 third 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 object side；R8 is the 4th lens picture
The radius of curvature of side；R9 is the radius of curvature of the 5th lens object side；R11 is the radius of curvature of the 6th lens object side；CT4
For 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 object
The effective radius of side；DT31 is the effective radius of the third lens object side；SAG11 is the friendship of the first lens object side and optical axis
O'clock to distance on the axis between the effective radius vertex of the first lens object side；SAG12 is the first lens image side surface and optical axis
Distance on intersection point to the axis between the effective radius vertex of the first lens object side；Σ T is that the first lens are any to the 6th lens
Between adjacent two lens on axis spacing distance summation；TTL is distance on the first lens object side to the axis of imaging surface.
To realize above-mentioned design parameter, specifically designing used by TV camera len of ultra wide-angle described in the present embodiment be 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 coefficient (A4, A6, A8,
A10, A12, A14, A16) it 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 color difference, astigmatism, improves periphery and contrasts
Degree, obtains preferable image quality, referring to attached drawing 26- Figure 30, meanwhile, the angle of view and shorter system length are realized,
And Miniaturization Design and good craftsmanship can be taken into account.
Embodiment seven:
Referring to attached drawing 31, TV camera len of ultra wide-angle described in the present embodiment successively includes: to have negative bend from object side to image side
Roll over the first lens L1 of power；The second lens L2 with positive refracting power；The third 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 object side S1 of the first lens L1 is convex surface, and image side surface S2 is concave surface；The object side S3 of second lens L2 is
Concave surface, image side surface S4 are convex surface；The third lens L3 has object side S5 and image side surface S6；4th lens L4 have object side S7 and
Image side surface S8；5th lens L5 has object side S9 and image side surface S10；The object side S11 of 6th lens L6 is convex surface, image side surface
S12 is concave surface；Optical filter L7 has object 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, for installing photosensitive element.
The main design parameters of TV camera len of ultra wide-angle described in the present embodiment see the table below 19:
Table 19
| Title | Numerical value |
| The effective focal length of first lens: f1 (mm) | -3.41 |
| The effective focal length of second lens: f2 (mm) | 37.41 |
| The effective focal length of the third lens: f3 (mm) | 5.17 |
| The effective focal length of 4th lens: f4 (mm) | 2.13 |
| The effective focal length of 5th lens: f5 (mm) | -2.41 |
| The effective focal length of 6th lens: f6 (mm) | 13.05 |
| The effective focal length of TV camera len of ultra wide-angle: f (mm) | 2.13 |
| Stop value: Fno | 2.49 |
| Angle of half field-of view: HFOV (°) | 75.00 |
| f1/f4 | -1.604 |
| f3/f | 2.423 |
| R8/R9 | 1.332 |
| CT4/CT6 | 0.959 |
| DT21/DT31 | 1.368 |
| SAG11/SAG12 | 0.629 |
| ΣT/TTL | 0.474 |
| R7/R11 | 0.946 |
Wherein: f1 is the effective focal length of the first lens；F3 is the effective focal length of the third 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 object side；R8 is the 4th lens picture
The radius of curvature of side；R9 is the radius of curvature of the 5th lens object side；R11 is the radius of curvature of the 6th lens object side；CT4
For 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 object
The effective radius of side；DT31 is the effective radius of the third lens object side；SAG11 is the friendship of the first lens object side and optical axis
O'clock to distance on the axis between the effective radius vertex of the first lens object side；SAG12 is the first lens image side surface and optical axis
Distance on intersection point to the axis between the effective radius vertex of the first lens object side；Σ T is that the first lens are any to the 6th lens
Between adjacent two lens on axis spacing distance summation；TTL is distance on the first lens object side to the axis of imaging surface.
To realize above-mentioned design parameter, specifically designing used by TV camera len of ultra wide-angle described in the present embodiment be see the table below
20:
Table 20
| Face number | Surface type | Radius of curvature | Thickness | Material | Circular cone coefficient |
| OBJ | Spherical surface | 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 | Spherical surface | 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 | Spherical surface | It is infinite | 0.2100 | 1.52/64.2 | |
| S14 | Spherical surface | It is infinite | 0.5400 | ||
| S15 | Spherical surface | It is infinite |
In TV camera len of ultra wide-angle described in the present embodiment non-spherical lens aspherical high-order coefficient (A4, A6, A8,
A10, A12, A14, A16) it 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 color difference, astigmatism, improves periphery and contrasts
Degree, obtains preferable image quality, referring to attached drawing 32- Figure 35, meanwhile, the angle of view and shorter system length are realized,
And Miniaturization Design and good craftsmanship can be taken into account.
Embodiment eight:
Referring to attached drawing 36, TV camera len of ultra wide-angle described in the present embodiment successively includes: to have negative bend from object side to image side
Roll over the first lens L1 of power；The second lens L2 with positive refracting power；The third 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 object side S1 of the first lens L1 is convex surface, and image side surface S2 is concave surface；The object side S3 of second lens L2 is
Concave surface, image side surface S4 are convex surface；The third lens L3 has object side S5 and image side surface S6；4th lens L4 have object side S7 and
Image side surface S8；5th lens L5 has object side S9 and image side surface S10；The object side S11 of 6th lens L6 is convex surface, image side surface
S12 is concave surface；Optical filter L7 has object 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, for installing photosensitive element.
The main design parameters of TV camera len of ultra wide-angle described in the present embodiment see the table below 22:
Table 22
Wherein: f1 is the effective focal length of the first lens；F3 is the effective focal length of the third 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 object
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 object side；DT31 is the effective radius of the third lens object side；SAG11 is first
Distance on the intersection point of lens object side and optical axis to the axis between the effective radius vertex of the first lens object side；SAG12 is
Distance on the intersection point of one lens image side surface and optical axis to the axis between the effective radius vertex of the first lens object side；Σ T is the
Between one lens to the 6th lens arbitrary neighborhood, two lens on axis spacing distance summation；TTL be the first lens object side at
Distance on the axis of image planes.
To realize above-mentioned design parameter, specifically designing used by TV camera len of ultra wide-angle described in the present embodiment be see the table below
23:
Table 23
| Face number | Surface type | Radius of curvature | Thickness | Material | Circular cone coefficient |
| OBJ | Spherical surface | 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 | Spherical surface | 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 | Spherical surface | It is infinite | 0.2100 | 1.52/64.2 | |
| S14 | Spherical surface | It is infinite | 0.5400 | ||
| S15 | Spherical surface | It is infinite |
In TV camera len of ultra wide-angle described in the present embodiment non-spherical lens aspherical high-order coefficient (A4, A6, A8,
A10, A12, A14, A16) it 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 color difference, astigmatism, improves periphery and contrasts
Degree, obtains preferable image quality, referring to attached drawing 37- Figure 40, meanwhile, the angle of view and shorter system length are realized,
And Miniaturization Design and good craftsmanship can be taken into account.
Above embodiments are only the preferable specific embodiments lifted to absolutely prove TV camera len of ultra wide-angle of the present invention,
It is not intended to limit the scope of the present invention.Those skilled in the art on the basis of the present invention made by equivalent substitute
Or transformation, it is within the scope of the present invention.Protection scope of the present invention be subject to claims record content.
Claims (10)
1. a kind of TV camera len of ultra wide-angle, it is characterised in that: successively include by object side to image side:
The first lens with negative refracting power；
The second lens with positive refracting power,
The third 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, object side are convex surface, and image side surface is concave surface；
Meet following relationship: -2 < f1/f4 < -1.5 simultaneously, wherein f1 is the effective focal length of the first lens；F4 is the 4th lens
Effective focal length；
Wherein, first lens, second lens, the third lens, the 4th lens, the 5th lens and institute
Stating the 6th lens is plastic aspherical element eyeglass.
2. TV camera len of ultra wide-angle as described in claim 1, it is characterised in that meet following relationship: 1.8 < f3/f < 3,
In, f3 is the effective focal length of the third lens；F is the effective focal length of TV camera len of ultra wide-angle.
3. TV camera len of ultra wide-angle as described 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 object side.
4. TV camera len of ultra wide-angle as described 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 described 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 object side；DT31 is the effective radius of the third lens object side.
6. TV camera len of ultra wide-angle as described 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 object side and optical axis to the effective radius top of the first lens object side
Distance on axis 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 object side
Distance on axis between vertex.
7. TV camera len of ultra wide-angle as described in claim 1, it is characterised in that meet following relationship: 0.2 < Σ T/TTL <
0.5, wherein the summation of Σ T spacing distance on axis between two lens of the first lens to the 6th lens arbitrary neighborhood；TTL is
Distance on one lens object side to the axis of imaging surface.
8. TV camera len of ultra wide-angle as described 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 object side；R11 is the radius of curvature of the 6th lens object side.
9. TV camera len of ultra wide-angle as described in claim 1, it is characterised in that: the first lens object side is convex surface, image side surface
For concave surface.
10. TV camera len of ultra wide-angle as claimed in claim 9, it is characterised in that: the second lens object side is concave surface, image side surface
For convex surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610889821.4A CN106443969B (en) | 2016-10-12 | 2016-10-12 | TV camera len of ultra wide-angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610889821.4A CN106443969B (en) | 2016-10-12 | 2016-10-12 | TV camera len of ultra wide-angle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106443969A CN106443969A (en) | 2017-02-22 |
| CN106443969B true CN106443969B (en) | 2019-04-19 |
Family
ID=58173538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610889821.4A Active CN106443969B (en) | 2016-10-12 | 2016-10-12 | TV camera len of ultra wide-angle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106443969B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI644141B (en) | 2016-10-14 | 2018-12-11 | 大立光電股份有限公司 | Optical imaging module, image capturing apparatus and electronic device |
| CN108508571B (en) * | 2017-02-28 | 2021-01-12 | 宁波舜宇车载光学技术有限公司 | Imaging system lens group |
| CN107219608B (en) * | 2017-06-30 | 2023-05-30 | 中山市众盈光学有限公司 | High-definition vehicle-mounted fisheye lens |
| TWI637212B (en) * | 2017-10-27 | 2018-10-01 | 大立光電股份有限公司 | Optical imaging lens assembly, image capturing unit and electronic device |
| CN112835180A (en) * | 2017-12-18 | 2021-05-25 | 宁波舜宇车载光学技术有限公司 | Optical lens |
| CN111061032B (en) * | 2018-10-16 | 2022-09-23 | 宁波舜宇车载光学技术有限公司 | Optical lens |
| WO2021128271A1 (en) * | 2019-12-27 | 2021-07-01 | 诚瑞光学(常州)股份有限公司 | Camera optical lens |
| WO2021128262A1 (en) * | 2019-12-27 | 2021-07-01 | 诚瑞光学(常州)股份有限公司 | Camera optical 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 |
| WO2021128267A1 (en) * | 2019-12-27 | 2021-07-01 | 诚瑞光学(常州)股份有限公司 | Image-capture optical lens |
| CN114200637B (en) * | 2020-09-17 | 2023-06-23 | 信泰光学(深圳)有限公司 | Wide-angle lens |
| CN114089512B (en) * | 2022-01-24 | 2022-07-05 | 江西联益光学有限公司 | Optical lens and imaging apparatus |
| CN114114651B (en) * | 2022-01-27 | 2022-07-05 | 江西联创电子有限公司 | Optical lens |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4552467B2 (en) * | 2004-03-12 | 2010-09-29 | カシオ計算機株式会社 | Zoom lens |
| CN104126142A (en) * | 2012-02-24 | 2014-10-29 | 日立麦克赛尔株式会社 | Wide-angle lens and imaging device |
| CN206193323U (en) * | 2016-10-12 | 2017-05-24 | 浙江舜宇光学有限公司 | Ultra -extensive angle camera lens |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10111454A (en) * | 1996-10-03 | 1998-04-28 | Nisca Corp | Wide angle lens |
| JP3909533B2 (en) * | 1997-01-24 | 2007-04-25 | 株式会社ニコン | Ultra compact zoom lens |
| US6917476B2 (en) * | 2002-04-19 | 2005-07-12 | Pentax Corporation | Zoom lens system |
| JP4612810B2 (en) * | 2004-06-11 | 2011-01-12 | キヤノン株式会社 | Optical system |
| JP2006139187A (en) * | 2004-11-15 | 2006-06-01 | Canon Inc | Zoom lens |
| KR100616646B1 (en) * | 2004-12-27 | 2006-08-28 | 삼성전기주식회사 | Inner Zoom Lens System |
| KR100882621B1 (en) * | 2006-11-22 | 2009-02-06 | 엘지이노텍 주식회사 | Zoom lens |
| US7982968B2 (en) * | 2006-12-14 | 2011-07-19 | Konica Minolta Opto, Inc. | Variable-power optical system, image pickup device, and digital apparatus |
| JP2009047722A (en) * | 2007-08-13 | 2009-03-05 | Konica Minolta Opto Inc | Variable power optical system, imaging device and digital device |
-
2016
- 2016-10-12 CN CN201610889821.4A patent/CN106443969B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4552467B2 (en) * | 2004-03-12 | 2010-09-29 | カシオ計算機株式会社 | Zoom lens |
| CN104126142A (en) * | 2012-02-24 | 2014-10-29 | 日立麦克赛尔株式会社 | Wide-angle lens and imaging device |
| CN206193323U (en) * | 2016-10-12 | 2017-05-24 | 浙江舜宇光学有限公司 | Ultra -extensive angle camera lens |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106443969A (en) | 2017-02-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106443969B (en) | TV camera len of ultra wide-angle | |
| CN207557562U (en) | Optical imaging lens | |
| CN207424360U (en) | Optical imaging lens | |
| CN110515187A (en) | Optical imaging lens | |
| CN108152934A (en) | Optical imaging lens | |
| CN108873272A (en) | Optical imaging lens | |
| CN108983401A (en) | Optical lens group | |
| CN108594407A (en) | Pick-up lens | |
| CN109491047A (en) | Optical imaging lens | |
| CN108535848A (en) | Optical imagery eyeglass group | |
| CN109782418A (en) | Optical imaging lens | |
| CN110376710A (en) | Optical imaging system | |
| CN110531501A (en) | Optical imaging lens | |
| CN209044167U (en) | Optical imaging lens | |
| CN209102995U (en) | Optical imaging lens group | |
| CN109239891A (en) | optical imaging lens group | |
| CN109358416A (en) | Pick-up lens | |
| CN209297019U (en) | Imaging lens | |
| CN209327660U (en) | Pick-up lens | |
| CN209215719U (en) | Optical imaging lens | |
| CN208521051U (en) | Optical imagery eyeglass group | |
| CN109358415A (en) | Optical imaging lens | |
| CN208521055U (en) | Pick-up lens | |
| CN206193323U (en) | Ultra -extensive angle camera lens | |
| CN207516629U (en) | Optical imaging lens |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |