CN208768158U - Optics time-marking device and streak tube scanning camera system - Google Patents
Optics time-marking device and streak tube scanning camera system Download PDFInfo
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- CN208768158U CN208768158U CN201821228480.7U CN201821228480U CN208768158U CN 208768158 U CN208768158 U CN 208768158U CN 201821228480 U CN201821228480 U CN 201821228480U CN 208768158 U CN208768158 U CN 208768158U
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- scanning camera
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Abstract
The utility model embodiment provides a kind of optics time-marking device and streak tube scanning camera system.The optics time-marking device is applied to streak tube scanning camera, comprising: multimode fibre is used for transmission the light pulse as timing signal；It is mounted on the colimated light system that the multimode fibre goes out light side, for collimating the light pulse being emitted by the multimode fibre for directional light；It is mounted on condenser lens of the colimated light system far from the multimode fibre side, the condenser lens corresponds to the slit setting of the streak tube scanning camera, for being linear light spot by parallel light focusing, the linear light spot enters the slit to be collected by the streak tube scanning camera.
Description
Technical field
The utility model relates to camera fields, in particular to a kind of optics time-marking device and streak tube scanning camera
System.
Background technique
Streak tube scanning camera is that have the ultrahigh time resolution rate that can measure simultaneously (can to picosecond and femtosecond), with high-altitude
Between resolution ratio unique high end instrument, record the time it is adjustable, be Shock wave physics, detonation physics, fluid dynamics for a long time
And one of common important diagnostic means in the experiment of the ultrafast process such as nuclear physics.
But commercialization streak tube scanning camera can not provide the absolute time of scan image time shaft and external event at present
Between relationship, so as to cause by it is different hair time experiment scan images compare and analyze when lack time reference, can not will also sweep
The diagnostic result of other equipment combines analysis in tracing picture and same hair experiment.In addition, the scanning of streak tube scanning camera
Process and nonideal linear scan, it is different with selection gear because of its circuit performance difference and aging, often exist different degrees of
Scan non-linearity.The nonlinearity index that commercialization scanning camera provides at present only reflects the performance of camera, can not
Reflect some specific gear sweeps fast situation of change.
Therefore, user demand cannot be met well in the prior art.
Utility model content
In view of this, the utility model embodiment is designed to provide a kind of optics time-marking device and streak tube scanning phase
Machine system.
A kind of optics time-marking device provided by the embodiment of the utility model is applied to streak tube scanning camera, comprising:
Multimode fibre is used for transmission the light pulse as timing signal；
It is mounted on the colimated light system that the multimode fibre goes out light side, the light pulse for will be emitted by the multimode fibre
Collimation is directional light；
Condenser lens of the colimated light system far from the multimode fibre side is mounted on, described in the condenser lens is corresponding
The slit of streak tube scanning camera is arranged, and for being linear light spot by parallel light focusing, the linear light spot enters the slit with quilt
The streak tube scanning camera is collected.
Optionally, further includes:
It is mounted on reflecting mirror of the condenser lens far from the colimated light system side, linear light spot is turned back to slit side
Edge.
It can be to guarantee that time-marking device is in except scanning camera imaging optical path by the effect of reflecting mirror.To effectively
It is embodied as streak tube scanning camera and markers is provided.
Optionally, further includes:
The numerical aperture of the colimated light system and the numerical aperture of multimode fibre match.
Optionally, the condenser lens is cylindrical lens.
Optionally, the vertical direction of propagation with the linear light spot of the axis of the cylindrical lens.
Optionally, the first standard interface is provided on the multimode fibre.
Optionally, it is provided with the second standard interface on the colimated light system, passes through second standard interface and described the
One standard interface is connect with the multimode fibre.
It can be convenient replacement or installation by the way that the multimode fibre and colimated light system are arranged to standard interface, use optics
Time-marking device can better adapt to demand, and being also able to use optics time-marking device, the service life is longer.
Optionally, the numerical aperture of the colimated light system need to match with the Numerical Aperture of Multimode Fiber.
Optionally, the colimated light system includes the first positive lens, the second positive lens and third negative lens, and described first just thoroughly
Mirror is arranged close to the multimode fibre, and the third negative lens is arranged close to the condenser lens, the second positive lens setting
Between first positive lens and the third negative lens.
Optionally, the convex surface of first positive lens and second positive lens is oppositely arranged, the third negative lens
Concave surface is arranged against second positive lens.
The light pulse that can be preferably emitted the multimode fibre by the way that colimated light system described in multiple lens forming is arranged
Collimation is directional light.
The utility model embodiment also provides a kind of streak tube scanning camera system, the system comprises:
Streak tube scanning camera, the streak tube scanning camera includes slit；
The above-mentioned optics time-marking device being mounted at the streak tube scanning camera slit.
Compared with prior art, the optics time-marking device of the utility model and streak tube scanning camera system, pass through collimation
System collimates light pulse for directional light, then directional light can further be handled to realization by condenser lens and gather directional light
Coke is linear light spot, it is ensured that markers optical path is in except scanning camera imaging optical path；Linear light spot focuses on the edge of slit, no
Influence the imaging to object of experiment.By increasing optics time-marking device, to set up the precise time of scan image and experiment
Relationship, and can be used for the real time nonlinear correction of scan image.
To enable the above objects, features, and advantages of the utility model to be clearer and more comprehensible, special embodiment below, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram of optics time-marking device provided by the embodiment of the utility model.
Fig. 2 is the structural schematic diagram of another angle of optics time-marking device provided by the embodiment of the utility model.
The structural schematic diagram of the colimated light system of Fig. 3 optics time-marking device provided by the embodiment of the utility model.
Fig. 4 is the overall light channel structure principle signal of streak tube scanning camera system provided by the embodiment of the utility model
Figure.
Icon: 100- optics time-marking device；110- multimode fibre；120- colimated light system；The first positive lens of 121-；122-
Two positive lens；123- third negative lens；130- condenser lens；140- reflecting mirror；Object lens are coupled before 200-；300- streak tube；
Object lens are coupled after 400-；500-CCD；Fixed structure outside 600-.
Specific embodiment
Below in conjunction with attached drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out clear
Chu is fully described by, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole realities
Apply example.The component of the utility model embodiment being usually described and illustrated herein in the accompanying drawings can be come with a variety of different configurations
Arrangement and design.Therefore, the detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit below
The range of claimed invention, but it is merely representative of the selected embodiment of the utility model.Based on the utility model
Embodiment, those skilled in the art's every other embodiment obtained without making creative work, all
Belong to the range of the utility model protection.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.Meanwhile it is practical new at this
In the description of type, term " first ", " second " etc. are only used for distinguishing description, are not understood to indicate or imply relatively important
Property.
In the description of the utility model, it should be noted that the orientation of the instructions such as term " on ", "lower", "inner", "outside" or
Positional relationship is to be based on the orientation or positional relationship shown in the drawings or when utility model product use usually visits
Orientation or positional relationship is merely for convenience of describing the present invention and simplifying the description, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore the utility model cannot be construed to
Limitation.
In the description of the utility model, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " is set
Set ", " installation ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be and be directly connected to, be also possible to by between intermediary in succession
It connects, can be the connection inside two elements.For the ordinary skill in the art, can be understood with concrete condition above-mentioned
The concrete meaning of term in the present invention.
In order to solve the problems, such as above two class, usually marks when light is added in scanning camera image border: being associated with external event
Single light when mark can by scan image time shaft with external event be associated with；When mark can be used as when multiple time intervals equal light
Between scale to scan image carry out real time nonlinear correction.Generally use two methods at present: first is that building light outside camera
Road is thrown to scanning camera slit edges by markers light；Second is that using optical fiber by light when index to slit, and fixed using fixture.
It usually requires to build multiple reflecting mirrors using above-mentioned first method, be easy by surrounding environment influence, optical path is unstable.With really
The change for testing place needs to build optical path, heavy workload repeatedly, and can not build light since space limits in certain occasions
Road.Using the imaging that will not influence experimental phenomena when above-mentioned second method, fiber end face need to be close to slit edges, due to
The influence of the optical fiber angle of divergence certainly will will cause the loss of light energy.Simultaneously because the influence of optical fiber radius bend, part fiber meeting
Among optical path in scanning imagery, to influence the imaging of experimental phenomena.Both the above method is not suitable for before camera
The occasion of object lens is installed.
Under the above technical background, the utility model proposes a kind of optics markers dresses applied to streak tube scanning camera
It sets.The utility model can be installed advantageously to streak tube scanning camera or be dismantled from camera.The utility model is from camera side
It is installed with inserted mode between camera slit and object lens, does not influence the use of object lens.The utility model does not block imaging optical path,
Therefore it will not have any impact to scan image.
Fig. 1 is the structural schematic diagram of optics time-marking device 100 provided by the embodiment of the utility model.Fig. 2 is that this is practical new
The structural schematic diagram of another angle for the optics time-marking device 100 that type embodiment provides.Wherein Fig. 1 and Fig. 2 is two mutually vertical
The schematic diagram of optics time-marking device 100 shown in straight visual angle.As illustrated in fig. 1 and 2, the optics time-marking device 100 includes: more
Mode fiber 110, colimated light system 120, condenser lens 130.
The multimode fibre 110 is used for transmission the light pulse as timing signal.
In the present embodiment, the core diameter of the multimode fibre 110 can be 47-53 μm, for example, 50 μm.Further, described
The numerical aperture of multimode fibre 110 can be 0.2.
Further, the one end of the multimode fibre 110 far from the colimated light system 120 passes through flange and external fixation
Structure 600 is connected, and the installation site of the multimode fibre 110 is in the focal position of colimated light system 120.In detail, described more
Mode fiber 110 when being fastened on the fixed structure 600 of the outside multimode fibre 110 be in the coke of colimated light system 120
Point position.In one embodiment, the fixed structure 600 of the outside can be nut, and the nut is set in described more
110 outside of mode fiber is to realize the fixed installation to multimode fibre 110.
The colimated light system 120 is mounted on the multimode fibre 110 and goes out light side, and being used for will be by the multimode fibre 110
The light pulse collimation of outgoing is directional light.
In the present embodiment, the numerical aperture of the colimated light system 120 can be with the numerical aperture phase of the multimode fibre 110
Together.
Further, the focal length of the colimated light system 120 can be 8.3-8.8mm.For example, it may be 8.6mm, 8.3mm
Or 8.8mm.
The condenser lens 130 is mounted on the colimated light system 120 far from 110 side of multimode fibre, the focusing
The slit setting of the corresponding streak tube scanning camera of lens 130, for being linear light spot by parallel light focusing.
In an example, the colimated light system 120 collimates the diverging pulsed light of fiber exit for the parallel of diameter 5mm
Light.The condenser lens 130 is by the linear light spot of the long 5mm of the directional light boil down to.
In the present embodiment, the optics time-marking device 100 further includes reflecting mirror 140.The reflecting mirror 140 is mounted on described
Condenser lens 130 turns back linear light spot to slit edges far from 120 side of colimated light system, into the slit by institute
State the collection of streak tube scanning camera.
Light pulse is collimated by colimated light system 120 as directional light, then led to by the optics time-marking device 100 of the utility model
It is linear light spot that directional light can further be handled realization for parallel light focusing by over-focusing lens 130, it is ensured that markers light
Road is in except scanning camera imaging optical path；Linear light spot focuses on the edge of slit, does not influence the imaging to object of experiment.Pass through
Increase optics time-marking device 100, to set up the exact relationship in time of scan image and experiment, and can be used for scan image
Real time nonlinear correction.
In one embodiment, the reflecting mirror 140 turn back front and back linear light spot optical axis included angle be 105 °, when guaranteeing
Device for mark is in except scanning camera imaging optical path.
In an example, the slit length can be 14mm, and hot spot can be 6mm apart from slit center.Entire optics
When electro-optical device can by flange from the side of the streak tube scanning camera install.Optics time-marking device in the present embodiment
100 can be installed on the camera machine before slit from 17mm from the side of the streak tube scanning camera by flange with inserted mode
With, it can easily be dismantled, and do not influence the use of object lens.
In the present embodiment, light pulse signal can be provided as the time using pulse laser, laser diode etc. and marked,
It is inserted into luminous point at streak tube scanning camera scan image edge, to know the accurate time between scan image and timing pulse
Corresponding relationship.In an example, the picosecond pulse laser of wavelength 532nm can be used as timing signal, by the wavelength
Laser pulse is coupled into multimode fibre 110.It is of course also possible to use the laser of other wavelength as timing signal, for example, wavelength
The picosecond pulse laser of 530nm, the picosecond pulse laser of wavelength 533nm, picosecond pulse laser of wavelength 535nm etc..
By the scheme in the application, the different associations in time for sending out time scan images can be got up, also can in time by
The measurement result of different diagnostic devices is associated in scan image and same hair experiment.In addition, believing if inputting light pulse at equal intervals
Number, using the optics time-marking device 100 in the application can also real time nonlinear correction be carried out to scan image.The utility model is adopted
Light pulse signal is transmitted with multimode fibre 110, hereafter colimated light system 120 collimates the light pulse of fiber exit for directional light, and
Line focus is carried out to the directional light light beam using cylindrical lens, and the linear light spot after focusing is turned back to sweeping by reflecting mirror 140
The edge of camera slit is retouched and perpendicular to slit, i.e. using the picture of the light pulse as markers in scan image.
Further, the utility model is convenient to install the optics time-marking device 100 to streak tube scanning camera
Or dismantled from the streak tube scanning camera, and do not influence the use of object lens, the optics time-marking device 100 in the application is not
Imaging optical path is blocked, therefore will not be had any impact to scan image.The utility model is in impact, detonation and fluid dynamics
It is had broad application prospects in the scanning imagery of experiment.
In a kind of optional embodiment, the condenser lens 130 is cylindrical lens.
In a kind of optional embodiment, the vertical direction of propagation with the linear light spot of the axis of the cylindrical lens.
Further, adjustment cylindrical lens enables it vertical with slit.Further, the linear light of the cylindrical lens and injection
Spot can be vertical with the slit.Further, linear light spot is cut by slit, becomes the point hot spot wide with slit, and pass through
Preceding coupled lens, streak tube 300, rear coupled lens, are ultimately imaged at CCD500, complete the time label in scan image.
In a kind of optional embodiment, the first standard interface is provided on the multimode fibre 110.
First standard interface can be hickey.
In a kind of optional embodiment, it is provided with the second standard interface on the colimated light system 120, passes through described
Two standard interfaces are connect with first standard interface with the multimode fibre 110.
In a kind of optional embodiment, the numerical aperture of the colimated light system 120 need to be with the multimode fibre 110 number
Value aperture matches.
In a kind of optional embodiment, the colimated light system 120 includes the first positive lens 121, the second positive lens 122
With third negative lens 123, first positive lens 121 is arranged close to the multimode fibre 110, and the third negative lens 123 leans on
The nearly condenser lens 130 is arranged, and the setting of the second positive lens 122 is negative saturating in first positive lens 121 and the third
Between mirror 123.
In a kind of optional embodiment, as shown in figure 3, first positive lens 121 and second positive lens 122
Convex surface be oppositely arranged, the concave surface of the third negative lens 123 is arranged against second positive lens 122.
The utility model is installed from camera side with inserted mode to position between the slit of camera and object lens as a whole,
Installation and removal are convenient and efficient, do not influence the use of object lens, do not block imaging optical path, do not influence the imaging to object of experiment.This
Utility model has broad application prospects in the scanning imagery that impact, detonation and fluid dynamics are tested.
In use, as shown in figure 4, the light pulse as timing signal is coupled into the multimode fibre 110, by collimation
System 120, cylindrical lens and reflecting mirror 140 are finally focused to a linear light spot perpendicular with slit in slit edges.The line
Hot spot is that slit cuts as the point hot spot wide with slit, and by preceding coupling object lens 200, streak tube 300, after couple object lens
400 image on CCD500 (Charge-coupled Device, charge coupled cell), realize scan image time shaft when
Between mark.By adjusting slit, linear light spot is cut as the point hot spot wide with slit.Thereafter through preceding coupling object lens 200, item
Line pipe 300, rear coupling object lens 400, are ultimately imaged on CCD500, to be added on the time shaft of acquired experimental image
Time label.
Further, the optics time-marking device 100 can also include some mounting structures, and the mounting structure is used for will
The multimode fibre 110, colimated light system 120, condenser lens 130 are installed.
The optics time-marking device 100 includes shell, and the multimode fibre 110, colimated light system 120, condenser lens 130 are equal
It is mounted on the interior of shell.
As shown in Fig. 2, the 140 installation site reserved space of reflecting mirror of the shell setting, the reserved space are logical for light
It crosses.
The utility model embodiment also provides a kind of streak tube scanning camera system, the system comprises:
Streak tube scanning camera, the streak tube scanning camera includes slit；
The above-mentioned optics time-marking device being mounted at the streak tube scanning camera slit.
Closing in this present embodiment can be further with reference in previous embodiment about other details of optics time-marking device
Description, details are not described herein.
Light pulse is collimated by colimated light system as directional light, then passes through focusing by the optics time-marking device of the utility model
It is linear light spot that directional light can further be handled realization for parallel light focusing by lens, it is ensured that markers optical path is in scanning
Except camera imaging optical path；Linear light spot focuses on the edge of slit, does not influence the imaging to object of experiment.When by increasing optics
Device for mark to set up the exact relationship in time of scan image and experiment, and can be used for the real time nonlinear school of scan image
Just.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.It should be noted that
To: similar label and letter indicate similar terms in following attached drawing, therefore, once determined in a certain Xiang Yi attached drawing
Justice does not need then that it is further defined and explained in subsequent attached drawing.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation
Or replacement, it should be covered within the scope of the utility model.Therefore, the protection scope of the utility model is answered described with power
Subject to the protection scope that benefit requires.
Claims (10)
1. a kind of optics time-marking device is applied to streak tube scanning camera characterized by comprising
Multimode fibre is used for transmission the light pulse as timing signal；
It is mounted on the colimated light system that the multimode fibre goes out light side, the light pulse collimation for will be emitted by the multimode fibre
For directional light；
It is mounted on condenser lens of the colimated light system far from the multimode fibre side, the condenser lens corresponds to the striped
The slit of pipe scanning camera is arranged, and for being linear light spot by parallel light focusing, the linear light spot enters the slit with described
Streak tube scanning camera is collected.
2. optics time-marking device as described in claim 1, which is characterized in that further include:
It is mounted on reflecting mirror of the condenser lens far from the colimated light system side, linear light spot is turned back to slit edges.
3. optics time-marking device as described in claim 1, which is characterized in that the condenser lens is cylindrical lens.
4. optics time-marking device as claimed in claim 3, which is characterized in that the axis of the cylindrical lens vertically with the line
The direction of propagation of hot spot.
5. optics time-marking device as described in claim 1, which is characterized in that be provided with the first standard on the multimode fibre and connect
Mouthful.
6. optics time-marking device as claimed in claim 5, which is characterized in that be provided with the second standard on the colimated light system and connect
Mouthful, it is connect by second standard interface with first standard interface with the multimode fibre.
7. optics time-marking device as described in claim 1, which is characterized in that the numerical aperture of the colimated light system need to it is described
Numerical Aperture of Multimode Fiber matches.
8. optics time-marking device as described in claim 1, which is characterized in that the colimated light system includes the first positive lens, the
Two positive lens and third negative lens, first positive lens are arranged close to the multimode fibre, and the third negative lens is close to institute
Condenser lens setting is stated, second positive lens is arranged between first positive lens and the third negative lens.
9. optics time-marking device as claimed in claim 8, which is characterized in that first positive lens and second positive lens
Convex surface be oppositely arranged, the concave surface of the third negative lens is arranged against second positive lens.
10. a kind of streak tube scanning camera system, which is characterized in that the system comprises:
Streak tube scanning camera, the streak tube scanning camera includes slit；
The optics time-marking device described in any one of claim 1-9 being mounted at the streak tube scanning camera slit.
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| CN201821228480.7U CN208768158U (en) | 2018-08-01 | 2018-08-01 | Optics time-marking device and streak tube scanning camera system |
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| CN201821228480.7U CN208768158U (en) | 2018-08-01 | 2018-08-01 | Optics time-marking device and streak tube scanning camera system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109040544A (en) * | 2018-08-01 | 2018-12-18 | 中国工程物理研究院流体物理研究所 | Optics time-marking device and streak tube scanning camera system |
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2018
- 2018-08-01 CN CN201821228480.7U patent/CN208768158U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109040544A (en) * | 2018-08-01 | 2018-12-18 | 中国工程物理研究院流体物理研究所 | Optics time-marking device and streak tube scanning camera system |
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