CN207764460U - A kind of big target surface optical imaging system applying to ITS intelligent transportation - Google Patents
A kind of big target surface optical imaging system applying to ITS intelligent transportation Download PDFInfo
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- CN207764460U CN207764460U CN201721782621.5U CN201721782621U CN207764460U CN 207764460 U CN207764460 U CN 207764460U CN 201721782621 U CN201721782621 U CN 201721782621U CN 207764460 U CN207764460 U CN 207764460U
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Abstract
A kind of big target surface optical imaging system applying to ITS intelligent transportation is disposed with front lens group, diaphragm, rear microscope group and image planes along optical axis direction from object plane side to image planes side, and the imaging system meets：200 ＜ fBefore＜ 220；35 ＜ fAfterwards＜ 40；6.5 ＜ fBefore/fAfterwards＜ 7；Wherein：fBeforeFor front lens group focal length, fAfterwardsFor rear microscope group focal length.A kind of big target surface optical imaging system applying to ITS intelligent transportation of the application, compared to common common ITS intelligent transportation camera lenses, this patent has all done larger conspicuousness enhancing in resolution ratio, sensitive chip size, surface structure, clear aperature etc. and has improved；Optical aberrations can be effectively corrected；Meanwhile purple boundary calibration is taken into account, include strong light such as car light in imaging image quality, especially coverage area, is not in around purple boundary phenomenon；Space is larger before and after system stop STO, can meet practical diaphragm component installation.The system can reach the CCD imaging functions of 1.3 " inch sizes, and pixel reaches 18,000,000 or more, aperture F1.35, the optical indexes such as C interface.
Description
Technical field
This application involves a kind of optical imaging systems, more particularly to a kind of big target surface light applying to ITS intelligent transportation
Learn imaging system.
Background technology
Increasing, urban traffic blocking state getting worse is measured as current domestic automobile is universal, in new technology background
Condition emerges large quantities of fruitful intelligent transportation command and control systems, and has popularized installation in each city；And this is
One of important equipment of uniting is exactly video camera, especially the big target surface video camera of high definition；With from it is previous it is visible till now
Clearly, it is higher and higher to imaging definition demand, imager chip demand is increasing, thang-kng brightness demand is more and more stronger, therefore take the photograph
The optical imaging system that camera is arranged in pairs or groups just proposes corresponding demand and promotion therewith
The intelligent transportation imaging lens that most of producers release at present, the chip generally arranged in pairs or groups 2/3 ", have substantially
It can be fitted to 1/1 " a bit, but few biggers that can arrange in pairs or groups, such as 4/3 " camera lens
Utility model content
The purpose of this utility model is to provide a kind of big target surface optical imaging system applying to ITS intelligent transportation, with
Overcome deficiency in the prior art.
To achieve the above object, the utility model provides the following technical solutions：
The application discloses a kind of big target surface optical imaging system applying to ITS intelligent transportation, along optical axis direction from object plane
Side to image planes side is disposed with front lens group, diaphragm, rear microscope group and image planes, it is characterised in that：The imaging system meets
Following condition formulae：
【Conditional 1】
200 ＜ fBefore＜ 220
【Conditional 2】
35 ＜ fAfterwards＜ 40
【Conditional 3】
6.5 ＜ fBefore/fAfterwards＜ 7
Wherein：fBeforeFor front lens group focal length, fAfterwardsFor rear microscope group focal length.
Preferably, the front lens group includes the first lens, the second lens, the third lens, the 4th lens, the 5th lens and the
Six lens, the rear microscope group includes the 7th lens, the 8th lens and the 9th lens；First lens are planoconvex positive lens,
Second lens are curved month type positive lens, and the third lens are biconvex positive lens, and the 4th lens are negative for double concave type
Lens；5th lens are double concave type positive lens, and the 6th lens are biconvex positive lens, and the 7th lens are biconvex
Type positive lens, the 8th lens are double concave type negative lens, and the 9th lens are double concave type negative lens.
Preferably, the third lens and the 4th lens form the first balsaming lens group, and the 5th lens and the 6th are thoroughly
Microscope group is at the second balsaming lens group.
Preferably, the third lens and the 5th lens use glass of high refractive index material, and the 8th lens are using super
Low dispersion material.
Preferably, the imaging system meets following condition formulae：
【Conditional 4】
Nd3≥1.85
【Conditional 5】
Nd5≥1.90
【Conditional 6】
Vd8≥71
Wherein：Nd3For the third lens refractive index；Nd5For the 5th index of refraction in lens；Vd8For the 8th lens Abbe number.
Preferably, the optical interval between first lens and the second lens is 8.05mm；Second lens and
Optical interval between three lens is 0.15mm；Optical interval between 4th lens and the 5th lens is 4.05mm；Institute
It is 0.10mm to state the optical interval between the 7th lens and the 8th lens；Between optics between 8th lens and the 9th lens
It is divided into 0.73mm.
Preferably, the first balsaming lens group and the second balsaming lens group, the 8th lens and the 9th lens be with
Face -- in face of being stacked by mode；First lens, the second lens and the 7th lens are all in a manner of optical metal spacer ring
It is positioned.
Preferably, the imaging system meets following condition formulae：
【Conditional 7】
2.0≤D1≤2.2
【Conditional 8】
0.6≤D2≤0.8
Wherein：D1For the interval of the first balsaming lens group and the second balsaming lens group；D2For the 8th lens and the 9th lens
Interval.
Preferably, the imaging system meets：
First lens：38≤R1≤40 78≤R2≤82 5.5≤D≤6.0,1.75≤Nd≤1.77；
Second lens：35≤R1≤38 400≤R2≤450 5.2≤D≤5.5,1.51≤Nd≤1.53；
The third lens：20≤R1≤24-95≤R2≤- 85 6.5≤D≤7.4,1.51≤Nd≤1.53；
4th lens：12≤the R2 of -95≤R1≤- 85≤15 1.0≤D≤1.2,1.73≤Nd≤1.76；
5th lens：13≤the R2 of -65≤R1≤- 60≤15 3.0≤D≤3.6,1.68≤Nd≤1.70；
6th lens：13≤R1≤15-210≤R2≤-- 190 5.0≤D≤6.2,1.75≤Nd≤ 1.77；
7th lens：45≤R1≤55-40≤R2≤- 30 5.8≤D≤6.2,1.77≤Nd≤1.79；
8th lens：19≤R1≤20 80≤R2≤90 4.0≤D≤4.5,1.78≤Nd≤1.80；
9th lens：16≤the R2 of -250≤R1≤- 300≤18 1.0≤D≤1.2,1.71≤Nd≤ 1.73；
Wherein：R1, R2 are the radius of curvature value on lens two sides, D is lens center thickness value, NdIt is rolled over for the optics of lens
Penetrate rate.
Preferably, the optics rear cut-off distance of the imaging system is more than 14mm.
Compared with prior art, a kind of big target surface optical imaging system applying to ITS intelligent transportation of the application, is compared
In common common ITS intelligent transportation camera lenses, this patent is in resolution ratio, sensitive chip size, surface structure, clear aperature
Etc. all done larger conspicuousness enhancing and improved；Purpose is promoted in order to reach performance improvement, this patent is than plain edition system
System has been mostly used 3 lens；And 3 lens are high refractivity, ultralow scattering material, can effectively correct optical aberrations；Meanwhile
Purple boundary calibration is taken into account, includes strong light such as car light in imaging image quality, especially coverage area, is not in around that purple boundary is existing
As；The system uses nine seven groups of formula structures；And space is larger before and after system stop STO, can meet practical diaphragm component peace
Dress.The system can reach the CCD imaging functions of 1.3 " inch sizes, and pixel reaches 18,000,000 or more, aperture F1.35, C interface
Etc. optical indexes.
Description of the drawings
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments described in application, for those of ordinary skill in the art, without creative efforts,
Other drawings may also be obtained based on these drawings.
Fig. 1 is big target surface optical imaging system schematic diagram in the utility model specific embodiment
Fig. 2 is big target surface optical imaging system aberration schematic diagram in the utility model specific embodiment
Fig. 3 is the big target surface optical imaging system curvature of field and distortion schematic diagram in the utility model specific embodiment
Fig. 4 is big target surface optical imaging system chromatism of position schematic diagram in the utility model specific embodiment
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Detailed description, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole implementation
Example.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
The application in conjunction with shown in Fig. 1 discloses a kind of big target surface optical imaging system applying to ITS intelligent transportation, along optical axis
Direction is disposed with front lens group, diaphragm 10, rear microscope group and image planes 11 from object plane side to image planes side, it is characterised in that：At
As system meets following condition formulae：
【Conditional 1】
200 ＜ fBefore＜ 220
【Conditional 2】
35 ＜ fAfterwards＜ 40
【Conditional 3】
6.5 ＜ fBefore/fAfterwards＜ 7
Wherein：fBeforeFor front lens group focal length, fAfterwardsFor rear microscope group focal length.
Preferably, front lens group includes the first lens 1, the second lens 2, the third lens 3, the 4th lens 4,5 and of the 5th lens
6th lens 6, rear microscope group include the 7th lens 7, the 8th lens 8 and the 9th lens 9；First lens 1 are planoconvex positive lens, the
Two lens 2 are curved month type positive lens, and the third lens 3 are biconvex positive lens, and the 4th lens 4 are double concave type negative lens；5th thoroughly
Mirror 5 is double concave type positive lens, and the 6th lens 6 are biconvex positive lens, and the 7th lens 7 are biconvex positive lens, and the 8th lens 8 are
Double concave type negative lens, the 9th lens 9 are double concave type negative lens.
Preferably, the third lens 3 and the 4th lens 4 form 6 groups of the first balsaming lens group, the 5th lens 5 and the 6th lens
At the second balsaming lens group.
Preferably, the third lens 3 and the 5th lens 5 use glass of high refractive index material, the 8th lens 8 to use ultralow color
Dissipate glass material.
Preferably, imaging system meets following condition formulae：
【Conditional 4】
Nd3≥1.85
【Conditional 5】
Nd5≥1.90
【Conditional 6】
Vd8≥71
Wherein：Nd3For the third lens refractive index；Nd5For the 5th index of refraction in lens；Vd8For the 8th lens Abbe number.
Preferably, the optical interval between the first lens 1 and the second lens 2 is 8.05mm；Second lens 2 and third are saturating
Optical interval between mirror 3 is 0.15mm；Optical interval between 4th lens 4 and the 5th lens 5 is 4.05mm；7th lens
7 and the 8th optical interval between lens 8 be 0.10mm；Optical interval between 8th lens 8 and the 9th lens 9 is
0.73mm。
Preferably, the first balsaming lens group and the second balsaming lens group, the 8th lens 8 and the 9th lens 9 are with face --
In face of being stacked by mode；First lens 1, the second lens 2 and the 7th lens 7 are determined in a manner of optical metal spacer ring
Position.
Preferably, imaging system meets following condition formulae：
【Conditional 7】
2.0≤D1≤2.2
【Conditional 8】
0.6≤D2≤0.8
Wherein：D1For the interval of the first balsaming lens group and the second balsaming lens group；D2For the 8th lens 8 and the 9th lens 9
Interval.
Preferably, imaging system meets：
First lens：38≤R1≤40 78≤R2≤82 5.5≤D≤6.0,1.75≤Nd≤1.77；
Second lens：35≤R1≤38 400≤R2≤450 5.2≤D≤5.5,1.51≤Nd≤1.53；
The third lens：20≤R1≤24-95≤R2≤- 85 6.5≤D≤7.4,1.51≤Nd≤1.53；
4th lens：12≤the R2 of -95≤R1≤- 85≤15 1.0≤D≤1.2,1.73≤Nd≤1.76；
5th lens：13≤the R2 of -65≤R1≤- 60≤15 3.0≤D≤3.6,1.68≤Nd≤1.70；
6th lens：13≤R1≤15-210≤R2≤-- 190 5.0≤D≤6.2,1.75≤Nd≤ 1.77；
7th lens：45≤R1≤55-40≤R2≤- 30 5.8≤D≤6.2,1.77≤Nd≤1.79；
8th lens：19≤R1≤20 80≤R2≤90 4.0≤D≤4.5,1.78≤Nd≤1.80；
9th lens：16≤the R2 of -250≤R1≤- 300≤18 1.0≤D≤1.2,1.71≤Nd≤ 1.73；
Wherein：R1, R2 are the radius of curvature value on lens two sides, D is lens center thickness value, NdIt is rolled over for the optics of lens
Penetrate rate.
Preferably, the optics rear cut-off distance of imaging system is more than 14mm.
Fig. 2, Fig. 3 and Fig. 4 show high pixel imaging system optical aberration schematic diagram in the utility model specific embodiment,
The curvature of field and distortion schematic diagram and chromatism of position schematic diagram.
Compared with prior art, a kind of big target surface optical imaging system applying to ITS intelligent transportation of the application, is compared
In common common ITS intelligent transportation camera lenses, this patent is in resolution ratio, sensitive chip size, surface structure, clear aperature
Etc. all done larger conspicuousness enhancing and improved；Purpose is promoted in order to reach performance improvement, this patent is than plain edition system
System has been mostly used 3 lens；And 3 lens are high refractivity, ultralow scattering material, can effectively correct optical aberrations；Meanwhile
Purple boundary calibration is taken into account, includes strong light such as car light in imaging image quality, especially coverage area, is not in around that purple boundary is existing
As；The system uses nine seven groups of formula structures；And space is larger before and after system stop STO, can meet practical diaphragm component peace
Dress.The system can reach the CCD imaging functions of 1.3 " inch sizes, and pixel reaches 18,000,000 or more, aperture F1.35, C interface
Etc. optical indexes.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also include other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The above is only the specific implementation mode of the application, it is noted that for the ordinary skill people of the art
For member, under the premise of not departing from the application principle, several improvements and modifications can also be made, these improvements and modifications are also answered
It is considered as the protection domain of the application.
Claims (10)
1. a kind of big target surface optical imaging system applying to ITS intelligent transportation, along optical axis direction from object plane side to image planes one
Side is disposed with front lens group, diaphragm, rear microscope group and image planes, it is characterised in that：The imaging system meets following condition formulae：
【Conditional 1】
200 ＜ fBefore＜ 220
【Conditional 2】
35 ＜ fAfterwards＜ 40
【Conditional 3】
6.5 ＜ fBefore/fAfterwards＜ 7
Wherein：fBeforeFor front lens group focal length, fAfterwardsFor rear microscope group focal length.
2. a kind of big target surface optical imaging system applying to ITS intelligent transportation according to claim 1, feature exist
In：The front lens group includes the first lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens, described
Microscope group includes the 7th lens, the 8th lens and the 9th lens afterwards；First lens are planoconvex positive lens, second lens
For curved month type positive lens, the third lens are biconvex positive lens, and the 4th lens are double concave type negative lens；Described 5th
Lens are double concave type positive lens, and the 6th lens are biconvex positive lens, and the 7th lens are biconvex positive lens, described
8th lens are double concave type negative lens, and the 9th lens are double concave type negative lens.
3. a kind of big target surface optical imaging system applying to ITS intelligent transportation according to claim 2, feature exist
In：The third lens and the 4th lens form the first balsaming lens group, and the 5th lens and the 6th lens form the second glue
Close lens group.
4. a kind of big target surface optical imaging system applying to ITS intelligent transportation according to claim 2, feature exist
In：The third lens and the 5th lens use glass of high refractive index material, the 8th lens to use ultra-low dispersion glass material
Matter.
5. a kind of big target surface optical imaging system applying to ITS intelligent transportation according to claim 2, feature exist
In：The imaging system meets following condition formulae：
【Conditional 4】
Nd3≥1.85
【Conditional 5】
Nd5≥1.90
【Conditional 6】
Vd8≥71
Wherein：Nd3For the third lens refractive index；Nd5For the 5th index of refraction in lens；Vd8For the 8th lens Abbe number.
6. a kind of big target surface optical imaging system applying to ITS intelligent transportation according to claim 2, feature exist
In：
Optical interval between first lens and the second lens is 8.05mm；Between second lens and the third lens
Optical interval is 0.15mm；Optical interval between 4th lens and the 5th lens is 4.05mm；7th lens with
Optical interval between 8th lens is 0.10mm；Optical interval between 8th lens and the 9th lens is 0.73mm.
7. a kind of big target surface optical imaging system applying to ITS intelligent transportation according to claim 3, feature exist
In：The first balsaming lens group and the second balsaming lens group, the 8th lens and the 9th lens are by face -- in a manner of leaning on
It is stacked；First lens, the second lens and the 7th lens are positioned in a manner of optical metal spacer ring.
8. a kind of big target surface optical imaging system applying to ITS intelligent transportation according to claim 3, feature exist
In：The imaging system meets following condition formulae：
【Conditional 7】
2.0≤D1≤2.2
【Conditional 8】
0.6≤D2≤0.8
Wherein：D1For the interval of the first balsaming lens group and the second balsaming lens group；D2Between the 8th lens and the 9th lens
Every.
9. a kind of big target surface optical imaging system applying to ITS intelligent transportation according to claim 2, feature exist
In：The imaging system meets：
First lens：38≤R1≤40 78≤R2≤82 5.5≤D≤6.0,1.75≤Nd≤1.77；
Second lens：35≤R1≤38 400≤R2≤450 5.2≤D≤5.5,1.51≤Nd≤1.53；
The third lens：20≤R1≤24-95≤R2≤- 85 6.5≤D≤7.4,1.51≤Nd≤1.53；
4th lens：12≤the R2 of -95≤R1≤- 85≤15 1.0≤D≤1.2,1.73≤Nd≤1.76；
5th lens：13≤the R2 of -65≤R1≤- 60≤15 3.0≤D≤3.6,1.68≤Nd≤1.70；
6th lens：13≤R1≤15-210≤R2≤-- 190 5.0≤D≤6.2,1.75≤Nd≤1.77；
7th lens：45≤R1≤55-40≤R2≤- 30 5.8≤D≤6.2,1.77≤Nd≤1.79；
8th lens：19≤R1≤20 80≤R2≤90 4.0≤D≤4.5,1.78≤Nd≤1.80；
9th lens：16≤the R2 of -250≤R1≤- 300≤18 1.0≤D≤1.2,1.71≤Nd≤1.73；
Wherein：R1, R2 are the radius of curvature value on lens two sides, D is lens center thickness value, NdFor the light refractive index of lens.
10. a kind of big target surface optical imaging system applying to ITS intelligent transportation according to claim 1, feature exist
In：The optics rear cut-off distance of the imaging system is more than 14mm.
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| CN201721782621.5U CN207764460U (en) | 2017-12-19 | 2017-12-19 | A kind of big target surface optical imaging system applying to ITS intelligent transportation |
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| CN201721782621.5U CN207764460U (en) | 2017-12-19 | 2017-12-19 | A kind of big target surface optical imaging system applying to ITS intelligent transportation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220082798A1 (en) * | 2020-09-15 | 2022-03-17 | Raytech Optical (Changzhou) Co., Ltd | Camera optical lens |
-
2017
- 2017-12-19 CN CN201721782621.5U patent/CN207764460U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220082798A1 (en) * | 2020-09-15 | 2022-03-17 | Raytech Optical (Changzhou) Co., Ltd | Camera optical lens |
| US11966018B2 (en) * | 2020-09-15 | 2024-04-23 | Raytech Optical (Changzhou) Co., Ltd | Camera optical lens |
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