CN206515546U - A kind of lens set applied to Train-borne recorder camera - Google Patents
A kind of lens set applied to Train-borne recorder camera Download PDFInfo
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- CN206515546U CN206515546U CN201720202838.8U CN201720202838U CN206515546U CN 206515546 U CN206515546 U CN 206515546U CN 201720202838 U CN201720202838 U CN 201720202838U CN 206515546 U CN206515546 U CN 206515546U
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- lens
- lens set
- reflection film
- train
- diaphragm
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Abstract
The utility model discloses a kind of lens set applied to Train-borne recorder camera, its structure includes preposition lens set, diaphragm, rearmounted lens set, optical filter, preposition lens set is connected by diaphragm with rearmounted lens set, diaphragm, rearmounted lens set are connected with optical filter, preposition lens set includes the first lens, the second lens, the beneficial effects of the utility model：The present apparatus on all lens entrance surfaces of lens group by plating last layer anti-reflection film, so that the reflectivity reduction of lens, greatly suppress reflected light, increase transmitted intensity, reduce reflection of the light between lens, eliminate or reduce veiling glare ghost, make camera imaging apparent, and by plating last layer infrared cut coating towards image planes surface in optical filter, weaken infrared light influences on image quality, effectively increase camera quality, pass through rational lens combination, effectively reduce the susceptibility of camera lens, lens material relative moderate, it is adapted to manufacture, effectively reduce cost.
Description
Technical field
The utility model is a kind of lens set applied to Train-borne recorder camera, belongs to a kind of and is applied to driving note
Lens set field in terms of record, anti-thefting monitoring.
Background technology
With the development of society, every field is to safety and the requirement more and more higher of monitoring, particularly field of traffic and car
Carry monitoring field.To be mainly resolution ratio relatively low for the Train-borne recorder camera lens of main flow currently on the market, is particularly when light is weak
Night cisco unity malfunction, either the definition of entirety or the acutance of picture are all not ideal enough for captured image, much
Train-borne recorder can not be met to picture imaging quality requirement.Current vehicle-mounted product is just towards high imaging quality trend development, car
It is exactly typical case therein to carry recorder.Existing vehicle-mounted camera can not be met in terms of definition current Train-borne recorder it is high into
As the demand of quality, while due to being disturbed by near infrared light, image quality is poor, image is untrue under night-environment.
Prior art discloses Application No.：A kind of 201220181327.X image lens group, by thing side to image side according to
Sequence includes the first lens, the second lens, the 3rd lens, the 4th lens and the 5th lens.First lens have positive refracting power, its
Thing side surface is convex surface.Second lens have negative refracting power.3rd lens are plastic cement material and have refracting power, and it has at least
One surface is aspherical.4th lens are plastic cement material and with refracting power, and its thing side surface is that concave surface, image side surface are convex
Face, and there is an at least surface to be aspherical for it.5th lens are plastic cement material and have positive refracting power, its thing side surface and picture
Side surface is all convex surface, and there is an at least surface to be aspherical for it.Due to the 5th lens thing side surface and image side surface all
For convex surface, the incident angle of the 5th lens perimeter light can be suppressed, to lift image quality.But, its lens set can not be preferable
Ground works under the weak particularly night-environment of light, it is impossible to reflected to solve light between lens, near infrared light influence is imaged
Quality etc..
Utility model content
In view of the deficienciess of the prior art, the utility model purpose, which is to provide one kind, is applied to Train-borne recorder camera
Lens set, preferably particularly can not be worked with solving its lens set under night-environment light is weak, it is impossible to solve light
Line reflects between lens, near infrared light influences image quality etc..
To achieve these goals, the utility model is to realize by the following technical solutions：One kind is applied to vehicle-mounted
The lens set of recorder camera, includes the preposition lens set with positive diopter being arranged in order from object plane to image planes, light
Door screen, the rearmounted lens set with positive diopter and optical filter, the preposition lens set are connected by diaphragm with rearmounted lens set, institute
Diaphragm, rearmounted lens set is stated with optical filter to be connected, the preposition lens set be followed successively by the first lens with negative diopter and
Second lens of positive diopter；The rearmounted lens set is followed successively by the 3rd lens with positive diopter, the 4th of positive diopter the
6th lens of lens, the 5th lens of negative diopter and positive diopter, wherein the 4th lens and the 5th lens combination are into gluing
Lens.The optical filter includes anti-reflection film, infrared cut coating, and the anti-reflection film is on the left of infrared cut coating, and described first is saturating
Mirror is provided with compound anti-reflection film one, and second lens are provided with compound anti-reflection film two, and the 3rd lens are provided with compound increasing
Permeable membrane three, the 4th lens are provided with compound anti-reflection film four, and the 5th lens are provided with compound anti-reflection film five, the 6th lens
It is provided with compound anti-reflection film six.
Further, first lens thickness is 1mm, and the second lens thickness is 2mm.
Further, the 3rd lens thickness is 4.2mm, and the 4th lens thickness is 2mm.
Further, the 5th lens thickness is 1mm, and the 6th lens thickness is 3mm.
Further, the filter thickness is 0.5mm.
Further, first lens are selenodont spherical lens, and material is dense crown, and concave surface is towards diaphragm.
Further, second lens are biconvex spherical lens, and material is ED glass.
Further, the 3rd lens are selenodont spherical lens, and material is high refractive low dispersive lanthanide glass, convex surface
Towards diaphragm.
A progressive ground, the 4th lens are planoconvex spotlight, and material is dense crown, convex surface facing image planes.
Further, the 5th lens are selenodont lens, and material is high refractive low dispersive glass, and concave surface is towards light
Door screen.
Further, the 6th lens are planoconvex spotlight, and material is high refractive low dispersive lanthanide glass, convex surface facing light
Door screen.
Further, the optical filter is plate glass, and material is smalt.
The beneficial effects of the utility model：The present apparatus is anti-reflection by plating last layer on all lens entrance surfaces of lens group
Film so that the reflectivity reduction of lens, greatly suppresses reflected light, increases transmitted intensity, reduce light between lens
Reflection, eliminate or reduce veiling glare ghost, make camera imaging apparent, and by being plated in optical filter towards image planes surface
One layer of infrared cut coating, weaken infrared light influences on image quality, effectively increases camera quality, passes through rational lens set
Close, effectively reduce the susceptibility of camera lens, lens material relative moderate is adapted to manufacture, effectively reduces cost.
Brief description of the drawings
By reading the detailed description made with reference to the following drawings to non-limiting example, other spies of the present utility model
Levy, objects and advantages will become more apparent upon：
Fig. 1 is a kind of structural representation of lens set applied to Train-borne recorder camera of the utility model.
Fig. 2 is a kind of all lens anti-reflection films of lens set applied to Train-borne recorder camera of the utility model, filtered
Piece anti-reflection film and infrared cut coating position view.
In figure：Lens set -1, diaphragm -2, rearmounted lens set -3, optical filter -4, the first lens 11, the second lens 12, the 3rd
Lens -31, the 4th lens -32, the 5th lens -33, the 6th lens -34, compound anti-reflection film one -111, compound anti-reflection film two -
121st, compound anti-reflection film three -311, compound anti-reflection film four -321, compound anti-reflection film five -331, compound anti-reflection film six -341.
Embodiment
To be easy to understand technological means, creation characteristic, reached purpose and effect of the utility model realization, below
With reference to embodiment, the utility model is expanded on further.
Fig. 1, Fig. 2 are referred to, the utility model provides a kind of technology of lens set applied to Train-borne recorder camera
Scheme：Its structure includes the preposition lens set 1 with positive diopter being arranged in order from object plane to image planes, diaphragm 2, tool
There are the rearmounted lens set 3 and optical filter 4 of positive diopter, the preposition lens set 1 is connected by diaphragm 2 with rearmounted lens set 3, institute
State diaphragm 2, rearmounted lens set 3 with optical filter 4 to be connected, the preposition lens set 1 includes the first lens 11, the second lens 12,
First lens 11 are fixedly connected with the first lens 11, the rearmounted lens set 3 include the 3rd lens 31, the 4th lens 32,
5th lens 33, the 6th lens 34, the 3rd lens 31 are connected by the 4th lens 32 with the 5th lens 33, and the described 5th is saturating
Mirror 33 is connected with the 6th lens 34.
The optical filter 4 includes anti-reflection film 41, infrared cut coating 42, and the anti-reflection film 41 is left located at infrared cut coating 42
Side, first lens 11 are provided with compound anti-reflection film 1, and second lens 12 are provided with compound anti-reflection film 2 121, institute
The 3rd lens 31 are stated provided with compound anti-reflection film 3 311, the 4th lens 32 are provided with compound anti-reflection film 4 321, described the
Five lens 33 are provided with compound anti-reflection film 5 331, and the 6th lens 34 are provided with compound anti-reflection film 6 341.
In addition, the first lens 11, the 5th lens 33 have negative diopter；Second lens 12, the 3rd lens 31, the 4th lens
32nd, the 6th lens 34 have positive diopter.
The thickness of first lens 11 is 1mm, and the second saturating 12 mirror thickness is 2mm, and the thickness of the 3rd lens 31 is
4.2mm, the thickness of the 4th lens 32 is 2mm, and the thickness of the 5th lens 33 is 1mm, and the thickness of the 6th lens 34 is 3mm, the filter
The thickness of mating plate 4 is 0.5mm, and first lens 11 are selenodont spherical lens, and material is dense crown, and concave surface is towards diaphragm
2, using selenodont spherical lens can effective deviation light, the light that negative diopter is capable of visual field greatly enters camera lens, described
Two lens 12 are biconvex spherical lens, and material is ED glass, and the light of different wave length can be made using ED glass
Line focus is in same picture point, so as to reduce dispersion, positive diopter and first negative diopter coordinate, and effectively relax deflection of light；
3rd lens 31 are selenodont spherical lens, and material is high refractive low dispersive lanthanide glass, convex surface facing diaphragm 2, is used
High refracting glass can increase deflection of light ability, and low dispersion can further reduce spherochromatism, rare earth element is added in glass
（Lanthanum）Glass quality can be lifted, lens performance, positive diopter and selenodont design is improved, effectively reduces the curvature of field；Described 4th is saturating
Mirror 32 is planoconvex spotlight, and material is dense crown, convex surface facing image planes, and the 5th lens 33 are selenodont lens, and material is
High refractive low dispersive glass, concave surface is towards diaphragm 2, and the 4th lens 32 and the 5th lens 33 are glued part, by two eyeglass gluings
Afterwards, the aberration such as spherical aberration coma can effectively be reduced by the cooperation of high low-refraction and positive negative lens, makes image quality higher；
6th lens 34 are planoconvex spotlight, and material is high refractive low dispersive lanthanide glass, convex surface facing diaphragm 2, is adopted
Deflection of light ability can be increased with high refracting glass, low dispersion can further reduce spherochromatism, rare earth element is added in glass
（Lanthanum）Glass quality can be lifted, lens performance, burnt after positive diopter regulation, convergence image formation by rays is improved.
The optical filter 4 is plate glass, and material is smalt, and thickness is 0.5mm, for filtering out infrared light, veiling glare,
Increase the transmitance of light, improve image quality.
When carrying out practical, user only need to be by confirming preposition lens set 1, diaphragm 2, rearmounted lens set 3 and optical filter 4
Correct combination, just can realize that improving camera quality reduces the effect of cost.
Specifically, a kind of lens set applied to Train-borne recorder camera, the lensed incidence surface of institute（It is multiple
Close anti-reflection film 1, compound anti-reflection film 2 121, compound anti-reflection film 3 311, compound anti-reflection film 4 321, compound anti-reflection film five
331st, compound anti-reflection film 6 341）The anti-reflection film that plating last layer is made up of materials such as silica, magnesium fluoride, alundum (Al2O3), H4,
Optical element surface can make light energy decay the reflex of light, and anti-reflection film makes film layer both sides anti-with the principle of interference of light
The light penetrated interferes counteracting, according to conservation of energy principle, and the ratio of transmitted light is greatly increased, so as to reach increase transmitted light intensity
The purpose of degree.
For example the eyeglass of Train-borne recorder camera is being carried out in use, user can be by being arranged in order from object plane to image planes
The preposition lens set 1 with positive diopter, diaphragm 2, the rearmounted lens set 3 with positive diopter and optical filter 4, it is described preposition
Lens set 1 is followed successively by the second lens 12 of the first lens 11 and positive diopter with negative diopter；The rearmounted lens set 3 according to
It is secondary to bend for the 3rd lens 31 with positive diopter, the 4th lens 32 of positive diopter, the 5th lens 33 of negative diopter and just
6th lens 34 of luminosity, wherein the 4th lens 32 and the 5th lens 33 are combined into balsaming lens.It is at different levels in the utility model
Mirror uses different materials and thickness, and is plated in mirror lens surface by the material structure such as silica, magnesium fluoride, alundum (Al2O3), H4
Into anti-reflection film, optical filter plates infrared cut coating towards image planes surface, solves to reflect between Train-borne recorder cam lens
Under light, night-environment near infrared ray on image quality influence, with image quality it is high the characteristics of, meanwhile, pass through rational mirror
Piece is combined, and effectively reduces the susceptibility of camera lens, and lens material relative moderate is adapted to manufacture, effectively reduces cost.
The utility model on all lens entrance surfaces of lens group by plating last layer anti-reflection film so that per a piece of lens
Reflectivity is reduced to 0.3%, greatly suppresses reflected light, increases transmitted intensity, reduces reflection of the light between lens,
Veiling glare ghost is eliminated or reduced, makes camera imaging apparent；Imaging sensor is very sensitive to infrared ray, if incident ray
In have infrared light, imaging can produce colour cast phenomenon, and image is untrue, by optical filter towards image planes surface plate last layer it is infrared
Cut film, weaken infrared light influences on image quality, effectively increases camera quality, by rational lens combination, effectively
The susceptibility of camera lens is reduced, lens material relative moderate is adapted to manufacture, effectively reduces cost.
General principle of the present utility model and principal character and advantage of the present utility model has been shown and described above, for
For those skilled in the art, it is clear that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and without departing substantially from this
In the case of the spirit or essential attributes of utility model, the utility model can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, scope of the present utility model is by institute
Attached claim rather than described above are limited, it is intended that will fall in the implication and scope of the equivalency of claim
All changes are included in the utility model.Any reference in claim should not be considered as to the right involved by limitation
It is required that.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It may be appreciated other embodiment.
Claims (7)
1. a kind of lens set applied to Train-borne recorder camera, it is characterised in that：Its structure include from object plane to
The preposition lens set with positive diopter that image planes are arranged in order（1）, diaphragm（2）, rearmounted lens set with positive diopter（3）
And optical filter（4）, the preposition lens set（1）Pass through diaphragm（2）With rearmounted lens set（3）Connection, the diaphragm（2）, it is rearmounted
Lens set（3）And optical filter（4）It is connected, the preposition lens set（1）Including the first lens（11）, the second lens（12）,
First lens（11）With the first lens（11）It is fixedly connected, the rearmounted lens set（3）Including the 3rd lens（31）, the 4th
Lens（32）, the 5th lens（33）, the 6th lens（34）, the 3rd lens（31）Pass through the 4th lens（32）With the 5th lens
（33）Connection, the 5th lens（33）With the 6th lens（34）It is connected, the optical filter（4）Including anti-reflection film（41）, it is red
Outer cut film（42）, the anti-reflection film（41）Located at infrared cut coating（42）Left side, first lens（11）Provided with compound
Anti-reflection film one（111）, second lens（12）It is provided with compound anti-reflection film two（121）, the 3rd lens（31）It is provided with
Compound anti-reflection film three（311）, the 4th lens（32）It is provided with compound anti-reflection film four（321）, the 5th lens（33）On
Provided with compound anti-reflection film five（331）, the 6th lens（34）It is provided with compound anti-reflection film six（341）.
2. a kind of lens set applied to Train-borne recorder camera according to claim 1, it is characterised in that：Described
One lens（11）The selenodont spherical lens being made for dense crown, thickness is 1mm, and concave surface is towards diaphragm；Second lens（12）
The biconvex spherical lens being made for ED glass, thickness is 2mm.
3. a kind of lens set applied to Train-borne recorder camera according to claim 1, it is characterised in that：Described
Three lens（31）The selenodont spherical lens being made for high refractive low dispersive lanthanide glass, thickness is 4.2mm, convex surface facing light
Door screen, the 4th lens（32）The planoconvex spotlight thickness being made for dense crown is 2mm, convex surface facing image planes.
4. a kind of lens set applied to Train-borne recorder camera according to claim 1, it is characterised in that：Described
Five lens（33）The selenodont lens for being 1mm for the thickness that high refractive low dispersive glass is made, concave surface is towards diaphragm, the 6th lens
（34）The planoconvex spotlight being made for high refractive low dispersive lanthanide glass, thickness is 3mm, convex surface facing diaphragm.
5. a kind of lens set applied to Train-borne recorder camera according to claim 1, it is characterised in that：The filter
Mating plate（4）It is made up of plate glass, thickness is 0.5mm.
6. a kind of lens set applied to Train-borne recorder camera according to claim 1, it is characterised in that：Preset lens
Piece group（1）With rearmounted lens set（3）With positive diopter.
7. a kind of lens set applied to Train-borne recorder camera according to claim 1, it is characterised in that：First is saturating
Mirror（11）, the 5th lens（33）With negative diopter；Second lens（12）, the 3rd lens（31）, the 4th lens（32）, it is the 6th saturating
Mirror（34）With positive diopter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720202838.8U CN206515546U (en) | 2017-03-03 | 2017-03-03 | A kind of lens set applied to Train-borne recorder camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720202838.8U CN206515546U (en) | 2017-03-03 | 2017-03-03 | A kind of lens set applied to Train-borne recorder camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206515546U true CN206515546U (en) | 2017-09-22 |
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ID=59867973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720202838.8U Expired - Fee Related CN206515546U (en) | 2017-03-03 | 2017-03-03 | A kind of lens set applied to Train-borne recorder camera |
Country Status (1)
| Country | Link |
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| CN (1) | CN206515546U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106772952A (en) * | 2017-03-03 | 2017-05-31 | 广州飞歌汽车音响有限公司 | A kind of lens set for being applied to Train-borne recorder camera |
| TWI647478B (en) * | 2018-01-15 | 2019-01-11 | 玉晶光電股份有限公司 | Optical imaging lens |
-
2017
- 2017-03-03 CN CN201720202838.8U patent/CN206515546U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106772952A (en) * | 2017-03-03 | 2017-05-31 | 广州飞歌汽车音响有限公司 | A kind of lens set for being applied to Train-borne recorder camera |
| TWI647478B (en) * | 2018-01-15 | 2019-01-11 | 玉晶光電股份有限公司 | Optical imaging lens |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170922 |
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| CF01 | Termination of patent right due to non-payment of annual fee |