CN207586453U - A kind of industrial monitoring camera lens using all-plastic optical material - Google Patents
A kind of industrial monitoring camera lens using all-plastic optical material Download PDFInfo
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- CN207586453U CN207586453U CN201721175997.XU CN201721175997U CN207586453U CN 207586453 U CN207586453 U CN 207586453U CN 201721175997 U CN201721175997 U CN 201721175997U CN 207586453 U CN207586453 U CN 207586453U
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- optical
- monitoring camera
- lens
- optical system
- industrial monitoring
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Abstract
The utility model is related to a kind of industrial monitoring camera lenses using all-plastic optical material, and optical system light path is formed by object lens [8], diaphragm [9], object lens [10] and detector [11] by light path trend using the industrial monitoring camera lens of all-plastic optical material design.Optical system focal length is 11.2mm, system is by the way of Polaroid；Optical system total length is 5.2mm, optical system weight 0.1g.F numbers：4；Distortion≤1% in full filed.It is further characterized in that：Its applicable detector is 1/3 inch, 1/4 inch CCD or CMOS, applicable wavelengths：0.4 μm~0.7 μm；Centre wavelength：0.5μm.Weight substantially mitigates, and use is aspherical, diffraction surfaces carry out optical system anaberration design, and the aberration of optical system is made to be well controlled.It is easy to be produced in enormous quantities, control cost.
Description
Technical field
The invention belongs to industrial monitoring camera lenses, are related to a kind of industrial monitoring camera lens using all-plastic optical material.
Background technology
Industrial monitoring camera lens is that one kind is operated in visible light wave range, using different material in scene to the reflected intensity of light not
Same and difference is imaged, and the industrial lens of different focal length can greatly expand the visual performance of human eye.
Industrial lens work mounted on specific position, place is hidden, reliable, can be for monitoring personnel, the row of vehicle
The security protection in dynamic and crucial place, application is more and more important, is rapidly developed in military monitoring and extensive use.
Current industrial lens are generally using conventional optical glass material design and manufacture, the weight weight of camera lens, volume
Greatly, although disclosure satisfy that the requirement in general industry field, for the stringent airborne application of size, weight demands or its
His special applications are then difficult to meet.
The industrial monitoring camera lens of the prior art as described in Figure 1, the eyeglass including 5 optical glass, a diaphragm and
Detector, volume is bigger than normal, and weight is laid particular stress on.
Plastic optical element is a kind of novel optical element, has light weight, preferable optical property, is easy to batch life
The advantages of production, can be used for substituting optical glass material.Particularly plastic optical element can be molded injection molding, some are special
Optical surface type, diffraction surfaces, it is aspherical can apply on plastic optical element, can greatly improve Performance of Optical System
With simplified optical system structure.It is very beneficial for the minification of optical system and mitigates weight.
Invention content
Technical problems to be solved
In order to avoid the shortcomings of the prior art, the present invention proposes a kind of industrial monitoring using all-plastic optical material
Camera lens uses plastic optics material to mitigate optical system weight, is designed by aspherical, diffraction surfaces, simplifies optical system knot
Structure, optimization optical property, make it realize miniaturization, lightweight while imaging performance is ensured.
Technical solution
A kind of industrial monitoring camera lens using all-plastic optical material, it is characterised in that including object lens 8, diaphragm 9, object lens 10
And detector 11；Object lens 8, diaphragm 9, object lens 10 and detector 11 are followed successively by along light path light axis；The object lens 8 and object lens 10 use
Plastic optical lens, and the minute surface of optical lens is aspherical, aspherical equation is：
Wherein：R is the distance with optical axis；R is the radius of curvature that aspheric vertex of surface goes out；K is conic constant；A、B、C、
D is asphericity coefficient.
The minute surface of the object lens 8 and object lens 10 is diffraction surfaces, and diffractive-aspherical equation is：
Wherein：R is the distance with optical axis；R is the radius of curvature that aspheric vertex of surface goes out；K is conic constant；A、B、C、
D is asphericity coefficient；HOR is diffraction time；c1、c2For diffraction surfaces coefficient；N is base Refractive Index of Material；n0For air refraction
Rate；λ0Centered on wavelength.
The combination parameter of the object lens 8, diaphragm 9 and object lens 10 is shown in optical parameter table：
Optical parameter table (unit：mm)
The focal length for the optical system that above-mentioned optical parameter is formed is 11.2mm, system is by the way of Polaroid；Optics
Overall length of system is 5.2mm, optical system weight 0.1g.FNumber：4.
The object lens 8 use PMMA.
The object lens 10 use PC.
The detector is 1/3 inch, 1/4 inch CCD or CMOS, applicable wavelengths：0.4 μm~0.7 μm；Centre wavelength：
0.5μm。
Advantageous effect
A kind of industrial monitoring camera lens using all-plastic optical material proposed by the present invention, uses optical plastic lens to subtract
Light optical system weight carries out aberration correction optimization image quality using optical aspherical surface, diffraction surfaces designing technique, simplifies optical system
Configuration.It is moved towards using the industrial monitoring camera lens of all-plastic optical material design by light path by object lens 8, diaphragm 9, object lens 10 and detection
Device 11 forms optical system light path.Optical system focal length is 11.2mm, system is by the way of Polaroid；Optical system overall length
It spends for 5.2mm, optical system weight 0.1g.F numbers：4；Distortion≤1% in full filed.It is further characterized in that：Its applicable detection
Device is 1/3 inch, 1/4 inch CCD or CMOS, applicable wavelengths：0.4 μm~0.7 μm；Centre wavelength：0.5μm.
The solution have the advantages that：
1 lightweight：All system weight is made substantially to mitigate using plastic optical lens in Optical System Design, realized light
Quantization.
2 high-performance：Optical system anaberration design is carried out using aspherical, diffraction surfaces, obtains the aberration of optical system
Control well.
It is 3 easy processings, at low cost：Due to the special physicochemical property of optical plastic, there is the processing sides such as molding, injection molding
Method is easy to be produced in enormous quantities, control cost.
Description of the drawings
Fig. 1 is prior art light path schematic diagram；
1-optical glass trade mark：NSK16；2-optical glass trade mark：SF4；3-diaphragm；4-optical glass trade mark：
SF4；5-optical glass trade mark：NSK16；6-optical glass trade mark：PPK53；7-CCD focal planes.
Fig. 2 is light path schematic diagram of the present invention；
8-optical plastic trade mark：PMMA；9-diaphragm；10-optical plastic trade mark：PC；11-CCD focal planes.
Specific embodiment
In conjunction with embodiment, attached drawing, the invention will be further described：
The light path schematic diagram is to use optical plastic lens and designed using optical aspherical surface, diffraction surfaces designing technique complete
Plastics industry monitoring camera light path principle figure.
Object lens 8, diaphragm 9, object lens 10 and detector 11, which are moved towards, by light path forms optical system light path.Detailed optical parameter is shown in
Following table.
Optical parameter table (unit：mm)
Aspherical equation is：
Wherein：R --- the distance with optical axis；
R --- the radius of curvature that aspheric vertex of surface goes out；
K --- conic constant；
A, B, C, D --- asphericity coefficient.
Diffractive-aspherical equation is：
Wherein：R --- the distance with optical axis；
R --- the radius of curvature that aspheric vertex of surface goes out；
K --- conic constant；
A, B, C, D --- asphericity coefficient；
HOR --- diffraction time；
c1、c2--- diffraction surfaces coefficient；
N --- base Refractive Index of Material；
n0--- air refraction；
λ0--- centre wavelength.
Claims (6)
1. a kind of industrial monitoring camera lens using all-plastic optical material, it is characterised in that including object lens (8), diaphragm (9), object lens
(10) and detector (11)；Object lens (8), diaphragm (9), object lens (10) and detector (11) are followed successively by along light path light axis；The object
Mirror (8) and object lens (10) are using plastic optical lens, and the minute surface of optical lens is aspherical, and aspherical equation is：
Wherein：R is the distance with optical axis；R is the radius of curvature that aspheric vertex of surface goes out；K is conic constant；A, B, C, D are
Asphericity coefficient.
2. the industrial monitoring camera lens of all-plastic optical material is used according to claim 1, it is characterised in that：The object lens
(8) and the minute surface of object lens (10) is diffraction surfaces, and diffractive-aspherical equation is：
Wherein：R is the distance with optical axis；R is the radius of curvature that aspheric vertex of surface goes out；K is conic constant；A, B, C, D are
Asphericity coefficient；HOR is diffraction time；c1、c2For diffraction surfaces coefficient；N is base Refractive Index of Material；n0For air refraction；λ0
Centered on wavelength.
3. the industrial monitoring camera lens according to claim 1 or claim 2 using all-plastic optical material, it is characterised in that：The object
The combination parameter of mirror (8), diaphragm (9) and object lens (10) is shown in optical parameter table：
Optical parameter table (unit：mm)
The focal length for the optical system that above-mentioned optical parameter is formed is 11.2mm, system is by the way of Polaroid；Optical system
Total length is 5.2mm, optical system weight 0.1g, FNumber：4.
4. the industrial monitoring camera lens according to claim 1 or claim 2 using all-plastic optical material, it is characterised in that：The object
Mirror (8) is using PMMA.
5. the industrial monitoring camera lens according to claim 1 or claim 2 using all-plastic optical material, it is characterised in that：The object
Mirror (10) is using PC.
6. the industrial monitoring camera lens according to claim 1 or claim 2 using all-plastic optical material, it is characterised in that：The spy
Device is surveyed as 1/3 inch, 1/4 inch CCD or CMOS, applicable wavelengths：0.4 μm~0.7 μm；Centre wavelength：0.5μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721175997.XU CN207586453U (en) | 2017-09-14 | 2017-09-14 | A kind of industrial monitoring camera lens using all-plastic optical material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721175997.XU CN207586453U (en) | 2017-09-14 | 2017-09-14 | A kind of industrial monitoring camera lens using all-plastic optical material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207586453U true CN207586453U (en) | 2018-07-06 |
Family
ID=62727441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721175997.XU Active CN207586453U (en) | 2017-09-14 | 2017-09-14 | A kind of industrial monitoring camera lens using all-plastic optical material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207586453U (en) |
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2017
- 2017-09-14 CN CN201721175997.XU patent/CN207586453U/en active Active
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