CN206657134U - A kind of intelligent vehicle-carried wide-angle lens - Google Patents
A kind of intelligent vehicle-carried wide-angle lens Download PDFInfo
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- CN206657134U CN206657134U CN201720489605.0U CN201720489605U CN206657134U CN 206657134 U CN206657134 U CN 206657134U CN 201720489605 U CN201720489605 U CN 201720489605U CN 206657134 U CN206657134 U CN 206657134U
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- 230000003287 optical effect Effects 0.000 claims abstract description 30
- 239000011521 glass Substances 0.000 claims abstract description 12
- 239000000571 coke Substances 0.000 claims abstract description 10
- 230000005499 meniscus Effects 0.000 claims abstract description 4
- 230000001681 protective effect Effects 0.000 claims description 5
- 238000004026 adhesive bonding Methods 0.000 claims 1
- 230000004075 alteration Effects 0.000 abstract description 10
- 230000000007 visual effect Effects 0.000 abstract description 10
- 238000012544 monitoring process Methods 0.000 abstract description 5
- 239000005357 flat glass Substances 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 5
- 238000003384 imaging method Methods 0.000 description 5
- 201000009310 astigmatism Diseases 0.000 description 4
- 238000012937 correction Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004581 coalescence Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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Abstract
The utility model discloses a kind of intelligent vehicle-carried wide-angle lens, including the first lens group, the second lens group；Diaphragm is provided between first lens group and the second lens group；Optical filter is provided between second lens group and image planes；First lens group includes the meniscus lens No.1 lens with negative power and convex surface facing object space, No. two lens of biconvex lens with negative power, No. three lens of biconvex lens with positive light coke；Second lens group includes balsaming lens, No. six lens of biconvex lens with positive light coke being bonded by No. four lens and No. five lens；No.1 lens, No. two lens, No. three lens, No. four lens, No. five lens, No. six lens are sequentially coaxially arranged between object plane and image planes.The utility model can be only produced with the high angle of visual field, good aberration characteristic, the optical lens compared with high image resolution and definition by six sheet glass spheric glasses, be not easy shooting blind angle amount occur during monitoring is taken pictures, monitoring range is larger.
Description
Technical field
A kind of wide-angle lens, more particularly to a kind of intelligent vehicle-carried wide-angle lens are the utility model is related to, belongs to optical imagery
Technical field.
Background technology
Wide-angle lens is a kind of camera lens that can be shot image pickup scope with broader visual angle, according to wide-angle lens
The big this speciality of angular field of view, it is generally widely used on monitoring use or vehicle-mounted camera device.In recent years, it is mobile
The product camera lens in the fields such as device, Vehicular device, telecontrol equipment and safety monitoring device is also towards light, thin, short and small design
Trend and develop；And during camera lens module minimizes, it is also desirable that camera lens is with higher pixel and the angle of visual field,
Just it is convenient to capture broader field range.The angle of visual field of existing intelligent vehicle-carried picture taking lens is not high enough, easily causes to take pictures
Monitoring range is too small, exist it is many take pictures dead angle the problems such as, be also unfavorable for clearly effectively recording reduction course of the incident, can not
Meet requirement of the intelligent vehicle-carried camera lens to higher and higher image resolution ratio and definition.Therefore, how to design a small
Type, the big angle of visual field, and possess compared with high imaging quality intelligent vehicle-carried wide-angle lens turn into current this area personage institute strongly
The subject under discussion of research.
Utility model content
In order to solve the weak point present in above-mentioned technology, the utility model provides a kind of intelligent vehicle-carried wide-angle lens
Head.
In order to solve the above technical problems, the technical solution adopted in the utility model is：A kind of intelligent vehicle-carried wide-angle lens,
Including diaphragm, optical filter, it also includes the first lens group, the second lens group；Diaphragm is arranged at the first lens group and the second lens
Between group；Optical filter is arranged between the second lens group and image planes；Protective glass is additionally provided between optical filter and image planes；
First lens group has negative focal length, including with negative power and saturating convex surface facing the meniscus lens No.1 of object space
Mirror, No. two lens of biconvex lens with negative power, No. three lens of biconvex lens with positive light coke；
Second lens group has positive focal length, including be bonded by No. four lens and No. five lens balsaming lens, have
No. six lens of biconvex lens of positive light coke；No.1 lens, No. two lens, No. three lens, No. four lens, No. five lens, No. six
Lens are sequentially coaxially arranged between object plane and image planes；
The focal length of the whole optical system of wide-angle lens is f；First lens group, the combined focal length of the second lens group are respectively
fa、fb；No.1 lens, No. two lens, No. three lens, balsaming lens, the focal length of No. six lens be respectively f1, f2, f3, f4-5,
f6；
First lens group, the scope of the combined focal length of the second lens group are respectively 12<|fa|/f<15、1.8<|fb|/f<2；
No.1 lens, No. two lens, No. three lens, balsaming lens, the focal range of No. six lens are respectively：0.5<|f1|/f<3.5、1
<|f2|/f<2.5、1<|f3|/f<2.5、4<|f4-5|/f<6、2.5<|f6|/f<3.5。
Distance of the object side surface of No.1 lens to image planes along optical axis direction is D, and D span is 0.05<|D/fa|<
1 and 1.5<|D/fb|<5.
No.1 lens, No. two lens, No. three lens, No. four lens, No. five lens, No. six lens are glass spherical mirror
Piece.
Wide-angle lens optics overall length TTL is less than or equal to 21.5mm.
The refractive index Nd of No.1 lens is 1.4<Nd<1.6, dispersive power Vd are 65<Vd<66；
The refractive index Nd of No. two lens is 1.4<Nd<1.6, dispersive power Vd are 65<Vd<66；
The refractive index Nd of No. three lens is 1.7<Nd<1.9, dispersive power Vd are 31<Vd<33；
The refractive index Nd of No. four lens is 1.6<Nd<1.8, dispersive power Vd are 54<Vd<57；
The refractive index Nd of No. five lens is 1.9<Nd<2.0, dispersive power Vd are 19<Vd<21；
The refractive index Nd of No. six lens is 1.8<Nd<1.9, dispersive power Vd are 41<Vd<43.
The utility model only by six sheet glass spheric glasses can produce with the high angle of visual field, good aberration characteristic,
Compared with the optical lens of high image resolution and definition, it is not easy shooting blind angle amount occur during monitoring is taken pictures, monitors model
Enclose larger, therefore be more beneficial for clearly effectively reducing course of the incident, used especially as intelligent vehicle-carried wide-angle lens.In addition,
It is of the present utility model it is simple and compact for structure, lens numbers are few, be advantageous to the Miniaturization Design of camera lens, so as to reduce production cost.
Brief description of the drawings
Fig. 1 is that system of the present utility model forms structure chart.
Fig. 2 is the path profile that light enters from embodiment one.
Fig. 3 is the MTF resolving curved line figures of embodiment one.
Fig. 4 is the astigmatism curve map of embodiment one.
Fig. 5 is the optical distortion figure of embodiment one.
Fig. 6 is the point range figure of embodiment one.
In figure：1st, No.1 lens；2nd, No. two lens；3rd, No. three lens；4th, No. four lens；5th, No. five lens；6th, No. six thoroughly
Mirror；7th, optical filter；8th, protective glass；9th, image planes；10th, diaphragm；11st, object plane.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
As shown in figure 1, the utility model from object plane 11 to image planes 9 be coaxially sequentially provided with 1, No. two lens 2 of No.1 lens,
No. three 5, No. six lens 6 of lens of lens 4, five of lens 3, four；Wherein, the lens 2, three of No.1 lens 1, two lens 3 are common
With the first lens group with negative power is formed, for receiving ambient with maximum field of view's corner connection, and part aberration is corrected；And
No. four lens 6 of lens 5, six of lens 4, five are collectively formed with the second lens group with positive light coke, for receiving the
The light of one lens group, and by light collection to image plane.
Wide-angle lens also includes diaphragm 10, and diaphragm 10 is arranged between the first lens group and the second lens group, to limit warp
Cross the first lens group optical luminous flux when entering the second lens group.Optical filtering is disposed between No. six lens 6 and image planes 9
Piece 7, protective glass 8, the noise light outside design wave band, and then improving optical efficiency can be filtered, realizes optimal imaging effect.
The focal length of the whole optical system of wide-angle lens is f；Then the first lens group, the second lens group combined focal length fa,
Fb meets following condition respectively：
1)12<|fa|/f<15；Fa is within this range, it is possible to increase the visual angle of optical lens and is advantageous to the first lens
Processing；
2)1.8<|fb|/f<2；Within this range, can reduce the senior aberration of system improves image quality while corrects fb
Distortion improves the brightness on image periphery；
No.1 lens 1 have negative power, its be thing side surface be convex surface and image side surface be concave surface meniscus lens,
To increase the angle of visual field of wide-angle lens；No. two lens 2 have negative power, and it is thing side surface and image side surface is concave surface
Lens, aberration caused by the light of No.1 lens 1 is passed with correction, and light is transmitted into No. three lens 3；No. three lens 3
With positive light coke, it is thing side surface and image side surface is the lens on convex surface, to correct the light for passing No. two lens 2
Caused aberration, and by light collection of the light through diaphragm and it is sent to No. four lens 4；No. four lens 4 and No. five phases of lens 5
Mutually bonding forms balsaming lens group, and the lens group has positive light coke, and minimum aberration can be achieved, while reduce spherical aberration, and by light
Congruence coalescence is sent to No. six lens 6；No. six lens 6 have positive light coke, and it is thing side surface and image side surface biconvex lens,
So that correction passed into aberration caused by balsaming lens group light, and by image formation by rays to image planes 9.
By the lens 2, three of No.1 lens 1, two lens 3, balsaming lens, No. six lens 6 focal length be expressed as f1,
f2、f3、f4-5、f6；Then the focal range of each lens is respectively：
3)0.5<|f1|/f<3.5；
4)1<|f2|/f<2.5；
5)1<|f3|/f<2.5；
6)4<|f4-5|/f<6；
7)2.5<|f6|/f<3.5。
In addition, distance of the object side surface of No.1 lens 1 to image planes 9 along optical axis direction is expressed as into D, then D value model
Enclose for 0.05<|D/fa|<1 and 1.5<|D/fb|<5.
All optical lenses use glass spheric glass in this camera lens, have a good aberration characteristic, good imaging quality,
Difficulty of processing and production cost can also effectively be reduced.
Wide-angle lens optics overall length TTL is less than or equal to 21.5mm.
The refractive index Nd of No.1 lens 1 is 1.4<Nd<1.6, dispersive power Vd are 65<Vd<66；
The refractive index Nd of No. two lens 2 is 1.4<Nd<1.6, dispersive power Vd are 65<Vd<66；
The refractive index Nd of No. three lens 3 is 1.7<Nd<1.9, dispersive power Vd are 31<Vd<33；
The refractive index Nd of No. four lens 4 is 1.6<Nd<1.8, dispersive power Vd are 54<Vd<57；
The refractive index Nd of No. five lens 5 is 1.9<Nd<2.0, dispersive power Vd are 19<Vd<21；
The refractive index Nd of No. six lens 6 is 1.8<Nd<1.9, dispersive power Vd are 41<Vd<43.
Optical property of the present utility model is described in further detail below by a specific embodiment.
In the present embodiment, the specific optical parametric of wide-angle lens is shown in Table 1：
Table 1
| Surface title | Surface type | Subsequent corrosion | Thickness | Refractive index | Abbe number |
| No.1 lens | Sphere | 24.4159 | 0.7 | 1.52 | 64 |
| Sphere | 3.8026 | 3.84 | |||
| No. two lens | Sphere | -11.4259 | 1 | 1.52 | 64 |
| Sphere | 3.58 | 0.854 | |||
| No. three lens | Sphere | 5.155 | 1.919 | 1.85 | 32 |
| Sphere | -26.3044 | 1.4637 | |||
| Diaphragm | Sphere | 1.00E+18 | 0.713 | ||
| No. four lens | Sphere | -57.4798 | 2.086 | 1.7 | 55 |
| No. five lens | Sphere | -2.3436 | 0.8 | 1.92 | 20 |
| Sphere | -5.4986 | 0.2471 | |||
| No. six lens | Sphere | 15.4895 | 1.996 | 1.84 | 42 |
| Sphere | -14.9437 | 0.4 | |||
| Optical filter | Sphere | Infinitely | 0.3 | 1.52 | 64.1 |
| Sphere | Infinitely | 0.1 | |||
| Protective glass | Sphere | Infinitely | 0.4 | 1.52 | 64.1 |
In the present embodiment | fa |/f=14, | fb |/f=1.95, | f1 |/f=2.99, | f2 |/f=1.75, | f3 |/f=
1.76, | f4-5 |/f=5.13, | f6 |/f=3.18, | D/fa |=0.52, | D/fb |=3.75.
Fig. 2 illustrates the path profile that light enters from the present embodiment.Below by specific experiment to of the present utility model
Optical property is verified.
(1) the MTF resolving curved lines of the present embodiment are as shown in figure 3, wherein, abscissa represent line it is right/every millimeter (lp/mm)
Spatial frequency, ordinate represent mtf value.From figure 3, it can be seen that the present embodiment presented in 140lp/mm spatial frequency compared with
Good contrast, its synthesis solution is higher as level, also implies that the definition of shooting picture is higher；And whole MTF declines smoothly,
High and low frequency part can effectively be balanced.
(2) the astigmatism curve of the present embodiment is as shown in figure 4, wherein, ASTIGMATIC FIELD CURVES represent that astigmatism is bent
Line, ANGLE represent angle, and FOCUS (MILLIMETERS) represents focusing (mm).It can be seen that the astigmatism of the present embodiment
Effective control has been obtained, optical distortion level can be reacted to a certain extent.
(3) optical distortion (DISTORTION) figure of the present embodiment is as shown in figure 5, when full spherical design is in full filed,
The maximum distortion of the present embodiment is only -60%, and distortion correction is good, is suitable as intelligent vehicle-carried wide-angle lens and uses.
(4) the present embodiment in the optical system point range figure of different visual fields (FIELD) as shown in fig. 6, in Fig. 6, under each visual field
Imaging point nearly all pooled a preferable point, show that the present embodiment has good imaging performance.
It is to be also not limited to the example above to limitation of the present utility model, the utility model that above-mentioned embodiment, which is not,
The variations, modifications, additions or substitutions that those skilled in the art are made in the range of the technical solution of the utility model,
Also the scope of protection of the utility model is belonged to.
Claims (5)
1. a kind of intelligent vehicle-carried wide-angle lens, including diaphragm (10), optical filter (7), it is characterised in that：It also includes the first lens
Group, the second lens group；The diaphragm (10) is arranged between the first lens group and the second lens group；The optical filter (7) is set
Between the second lens group and image planes (9)；Protective glass (8) is additionally provided between optical filter (7) and image planes (9)；
First lens group has a negative focal length, including with negative power and convex surface facing the meniscus lens No.1 lens of object space
(1), No. two lens (2) of the biconvex lens with negative power, No. three lens (3) of biconvex lens with positive light coke；
Second lens group has a positive focal length, including the gluing being bonded by No. four lens (4) and No. five lens (5) is thoroughly
Mirror, No. six lens (6) of biconvex lens with positive light coke；The No.1 lens (1), No. two lens (2), No. three lens (3),
No. four lens (4), No. five lens (5), No. six lens (6) are sequentially coaxially arranged between object plane (11) and image planes (9)；
The focal length of the whole optical system of the wide-angle lens is f；First lens group, the combined focal length of the second lens group are respectively
fa、fb；No.1 lens (1), No. two lens (2), No. three lens (3), balsaming lens, the focal length of No. six lens (6) be respectively f1,
f2、f3、f4-5、f6；
First lens group, the scope of the combined focal length of the second lens group are respectively 12<|fa|/f<15、1.8<|fb|/f<2；
The No.1 lens (1), No. two lens (2), No. three lens (3), balsaming lens, the focal range of No. six lens (6) are respectively：
0.5<|f1|/f<3.5、1<|f2|/f<2.5、1<|f3|/f<2.5、4<|f4-5|/f<6、2.5<|f6|/f<3.5。
2. intelligent vehicle-carried wide-angle lens according to claim 1, it is characterised in that：The object space table of the No.1 lens (1)
Distance of the face to image planes (9) along optical axis direction is D, and D span is 0.05<|D/fa|<1 and 1.5<|D/fb|<5.
3. intelligent vehicle-carried wide-angle lens according to claim 1, it is characterised in that：The No.1 lens (1), No. two lens
(2), No. three lens (3), No. four lens (4), No. five lens (5), No. six lens (6) are glass spheric glass.
4. intelligent vehicle-carried wide-angle lens according to claim 1, it is characterised in that：The wide-angle lens optics overall length TTL
Less than or equal to 21.5mm.
5. the intelligent vehicle-carried wide-angle lens according to claim 1 or 3, it is characterised in that：
The refractive index Nd of the No.1 lens (1) is 1.4<Nd<1.6, dispersive power Vd are 65<Vd<66；
The refractive index Nd of No. two lens (2) is 1.4<Nd<1.6, dispersive power Vd are 65<Vd<66；
The refractive index Nd of No. three lens (3) is 1.7<Nd<1.9, dispersive power Vd are 31<Vd<33；
The refractive index Nd of No. four lens (4) is 1.6<Nd<1.8, dispersive power Vd are 54<Vd<57；
The refractive index Nd of No. five lens (5) is 1.9<Nd<2.0, dispersive power Vd are 19<Vd<21；
The refractive index Nd of No. six lens (6) is 1.8<Nd<1.9, dispersive power Vd are 41<Vd<43.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720489605.0U CN206657134U (en) | 2017-05-04 | 2017-05-04 | A kind of intelligent vehicle-carried wide-angle lens |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720489605.0U CN206657134U (en) | 2017-05-04 | 2017-05-04 | A kind of intelligent vehicle-carried wide-angle lens |
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| Publication Number | Publication Date |
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| CN206657134U true CN206657134U (en) | 2017-11-21 |
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ID=60319489
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720489605.0U Withdrawn - After Issue CN206657134U (en) | 2017-05-04 | 2017-05-04 | A kind of intelligent vehicle-carried wide-angle lens |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106932890A (en) * | 2017-05-04 | 2017-07-07 | 威海嘉瑞光电科技股份有限公司 | A kind of intelligent vehicle-carried wide-angle lens |
| US11314043B2 (en) | 2018-09-10 | 2022-04-26 | Sintai Optical (Shenzhen) Co., Ltd. | Lens assembly including six lenses of −−++−+ refractive powers |
-
2017
- 2017-05-04 CN CN201720489605.0U patent/CN206657134U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106932890A (en) * | 2017-05-04 | 2017-07-07 | 威海嘉瑞光电科技股份有限公司 | A kind of intelligent vehicle-carried wide-angle lens |
| CN106932890B (en) * | 2017-05-04 | 2022-05-13 | 威海嘉瑞光电科技股份有限公司 | Intelligent vehicle-mounted wide-angle lens |
| US11314043B2 (en) | 2018-09-10 | 2022-04-26 | Sintai Optical (Shenzhen) Co., Ltd. | Lens assembly including six lenses of −−++−+ refractive powers |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Intelligent vehicle-mounted wide-angle lens Effective date of registration: 20181212 Granted publication date: 20171121 Pledgee: Weihai City Commercial Bank Limited by Share Ltd Xinghai branch Pledgor: Weihai Jia Rui photoelectric Polytron Technologies Inc Registration number: 2018990001180 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20191230 Granted publication date: 20171121 Pledgee: Weihai City Commercial Bank Limited by Share Ltd Xinghai branch Pledgor: Weihai Jia Rui photoelectric Polytron Technologies Inc Registration number: 2018990001180 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: An intelligent vehicle wide angle lens Effective date of registration: 20201215 Granted publication date: 20171121 Pledgee: Weihai City Commercial Bank Limited by Share Ltd. Xinghai branch Pledgor: WEIHAI JIARUI OPTOELECTRONIC TECHNOLOGY Co.,Ltd. Registration number: Y2020980009265 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220118 Granted publication date: 20171121 Pledgee: Weihai City Commercial Bank Limited by Share Ltd. Xinghai branch Pledgor: WEIHAI JIARUI OPTOELECTRONIC TECHNOLOGY CO.,LTD. Registration number: Y2020980009265 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20171121 Effective date of abandoning: 20220513 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20171121 Effective date of abandoning: 20220513 |
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| AV01 | Patent right actively abandoned |