CN107688284A - A kind of Particle Field is holographic coaxially and off axis to reproduce light path system and method - Google Patents
A kind of Particle Field is holographic coaxially and off axis to reproduce light path system and method Download PDFInfo
- Publication number
- CN107688284A CN107688284A CN201710757551.6A CN201710757551A CN107688284A CN 107688284 A CN107688284 A CN 107688284A CN 201710757551 A CN201710757551 A CN 201710757551A CN 107688284 A CN107688284 A CN 107688284A
- Authority
- CN
- China
- Prior art keywords
- axis
- mobile platform
- image
- objective lens
- target
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002245 particle Substances 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000003287 optical effect Effects 0.000 claims abstract description 88
- 238000001914 filtration Methods 0.000 claims abstract description 18
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 21
- 230000033001 locomotion Effects 0.000 claims description 18
- 230000008569 process Effects 0.000 claims description 9
- 238000003384 imaging method Methods 0.000 claims description 6
- 238000005286 illumination Methods 0.000 claims description 4
- 238000013519 translation Methods 0.000 description 10
- 238000005259 measurement Methods 0.000 description 9
- 238000009432 framing Methods 0.000 description 7
- 238000001093 holography Methods 0.000 description 7
- 238000012634 optical imaging Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 5
- 238000011160 research Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000001154 acute effect Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000037361 pathway Effects 0.000 description 2
- 230000009711 regulatory function Effects 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000021615 conjugation Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000002405 diagnostic procedure Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000004304 visual acuity Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/22—Processes or apparatus for obtaining an optical image from holograms
- G03H1/2202—Reconstruction geometries or arrangements
- G03H1/2205—Reconstruction geometries or arrangements using downstream optical component
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/22—Processes or apparatus for obtaining an optical image from holograms
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/22—Processes or apparatus for obtaining an optical image from holograms
- G03H1/2202—Reconstruction geometries or arrangements
- G03H2001/2223—Particular relationship between light source, hologram and observer
- G03H2001/2231—Reflection reconstruction
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Holo Graphy (AREA)
Abstract
Present invention relates particularly to a kind of holographic coaxial and off-axis reproduction light path system of Particle Field and method.System includes light source beam-expanding collimation system, mirror system, reproduces acquisition system and adjusts the accessory system of optical axis；Light source beam-expanding collimation system includes reproduction light source, beam expanding lens, filtering pin hole and the collimating mirror set gradually along light path；Mirror system includes completely reflecting mirror one and completely reflecting mirror two；Reproducing acquisition system includes holographic dry plate, image-forming objective lens, collection camera, support one, support two, mobile platform controller and control computer；The accessory system of regulation optical axis includes He-Ne laser, diaphragm, the target of cross circle half and the full target of cross circle；The present invention realizes Particle Field coaxially and off-axis gaussian beam playback system shares the purpose of most of light path, improves adaptability.
Description
Technical field
The present invention relates to Particle Field laser-pulsed holography fields of measurement, and in particular to a kind of Particle Field is holographic coaxially and off-axis
Reproduce light path system and method.
Background technology
The measurement of Particle Field laser-pulsed holography is (referred to as " Particle Field holographic measurement ") to utilize laser-pulsed holography imaging side
Method is to a large amount of fine particles caused by certain mechanism (for example, water droplets, oil droplet, detonation particle, nanoplankton and dust
Deng) the parameter such as spatial distribution, particle diameter and speed carry out a technology of measurement, it is the one of current laser hologram
Big application field.
The recording mode of Particle Field holographic measurement includes coaxial and off-axis two kinds, and specific light path is as depicted in figs. 1 and 2.Together
Axle record uses the laser beam irradiation Particle Field after beam-expanding collimation, and the diffraction light of particle is as object light, the straight-through light not being diffracted
As reference light, object light and reference light pass through 4F optical imaging systems simultaneously, are irradiated on holographic dry plate.Whole recording beam path is only
There is an optical axis, it is fairly simple, suitable for the relatively low Particle Field of measurement number density.If the number density of Particle Field is larger, lead directly to
Wide amount is reduced, it is necessary to be recorded using off-axis mode.In off-axis recording mode, laser beam is divided into two beams first, point
Beam-expanding collimation is not carried out, wherein a branch of irradiation Particle Field, the diffraction light of particle passes through 4F optical imaging systems, is irradiated as object light
Onto holographic dry plate, another Shu Zuowei reference lights are irradiated on holographic dry plate after completely reflecting mirror reflects.Object light and reference light
Angle is typically at 30 ° or so, and both beam intensity ratios are 1:2~1:In the range of 4.Meanwhile object light and the optical path difference of reference light are less than
The coherence length of LASER Light Source.
Because particle diameter is in micron dimension in Particle Field, corresponding fraunhofer far field is away from very little (millimeter~centimetre amount
Level).Meanwhile the Particle Field of the Particle Field of formation particularly high-speed motion can be interfered or destroyed to holographic dry plate, influence complete
Cease seal record.To overcome above-mentioned two problems, it is both needed to use 4F optical imaging systems in coaxial and off-axis recording mode by grain
Subfield be imaged onto after the preceding surface of holographic dry plate near region carry out holographic recording.In addition, in order to ensure reconstruction of hologram process
The reproduction image of middle Particle Field is not distorted, vertical with holographic dry plate by the object light optical axis of 4F optical imaging systems.
The general reproduction light path of Particle Field holographic measurement：When being reproduced to holographic dry plate, in order to obtain distortionless standard
Certain picture, the conjugation optical illumination holographic dry plate of reference light when light must use holographic recording is reproduced, now the latex of holographic dry plate
Face needs backlight.Particle Field holographic measurement is divided into coaxial and off-axis two kinds of recording modes, reproduce light path be also classified into it is coaxial and
Off-axis two kinds.
One, coaxially reproduces light path.Fig. 3 is that a kind of the most frequently used in-line holographic reproduces light path.Light source is reproduced using single mode to connect
Continuous laser, wavelength are identical with pulse laser wavelength used during holographic recording.Beam expanding lens uses microcobjective, considers
The bore and focal length of collimating mirror determines the enlargement ratio of beam expanding lens.Collimating mirror uses anaberration lens, according to dry plate size come
Determine that it expands bore.Directional light after collimation is impinged perpendicularly on holographic dry plate as light is reproduced, and the optical axis of diffractional field is (i.e. again
The optical axis of existing Particle Field) with reproducing the optical axis coincidence of light.Three axles composition of three-dimensional mobile platform and is mutually perpendicular to entirety, from upper
It is down y-axis, x-axis and z-axis successively.Image-forming objective lens use the small depth of field lens group of anaberration, have certain enlargement ratio, scheme
As collection camera is using high-resolution, the scientific grade CCD camera of low noise.When reproducing collection, reproduce Particle Field and be located at image-forming objective lens
Near leading face, gather after the sensitive face of camera overlaps with the rear working face of image-forming objective lens, the interval between them is fixed not
Become.Three-dimensional mobile platform is controlled, the position of mobile holographic dry plate, reproduction Particle Field is imaged onto collection in a manner of " successively framing "
In the sensitive face of camera, so as to realize the collection to reproducing Particle Field.
When arrangement coaxially reproduces light path, the optical axis of each optical element is calibrated one by one from back to front first with narrow laser beam.
Holographic dry plate is must be perpendicular to due to reproducing light, it requires that the z-axis of mobile platform will be all the time parallel to again in moving process
The now optical axis of light, therefore, need to carry out repeatedly adjustment to three-dimensional mobile platform when light path is laid.
Two, reproduce light path off axis.Fig. 4 is that a kind of conventional off-axis gaussian beam reproduces light path, the requirement of each optical element with it is same
It is identical that axle reproduces light path.When reproducing collection, reproduce conjugate direction of the light along reference light during holographic recording and incide on holographic dry plate,
The angle of object light and reference light when acute angle folded by the optical axis of diffractional field and the optical axis of reproduction light is holographic recording.
, it is necessary to use the acquisition mode of " layering framing " when being acquired to reproduction Particle Field, document 3 [Luo Zhenxiong, grain are seen
The reproduction and image processing techniques research [D] of subfield hologram, Mianyang:China Engineering Physics Research Institute, 2005:20-34].Entirely
Dry plate is ceased under three-dimensional mobile platform control, and order is mobile as shown in Figure 5, makes collection camera to the three dimensional particles field of reproduction along hanging down
Directly in carrying out framing collection in each aspect of diffractional field optical axis, hierarchy slicing collection is carried out along diffractional field optical axis direction.Framing
During collection, there is certain overlapping region between adjacent two images, for image mosaic, the view picture of one aspect of formation after splicing
Image；, it is necessary to certain layering acquisition interval be set according to particle size, so as to realize to same file when hierarchy slicing gathers
The processing and contrast of different aspects sectioning image, complete to reproduce purpose of the particle image in Jiao's positioning.
Seen from the above description, existing Particle Field typically reproduces light path and problems be present：
1. can not common optical pathways when coaxial reproduction and off-axis reproduction.It can be seen that coaxially from Fig. 3 and Fig. 4 light channel structure
When reproducing and reproducing off axis, the optical axis direction of diffractional field is different.Therefore, it is impossible to realized simultaneously in a light path it is coaxial reproduce and
It is off-axis to reproduce.For often carrying out the laboratory of different holographic recording modes (coaxial recording or off-axis record), reproduce
When need simultaneously arrange coaxially and off-axis two reproduction light paths, or only with a set of optical element build repeatedly both reproduce light
Road, experimental cost so can be not only improved, can also waste the time and efforts of scientific research personnel.
2. reproducing light path off axis has diffractional field translation problem.As shown in fig. 6, when holographic dry plate moves along diffraction optical axis direction
When moving to obtain the particle picture of different reproduction aspect in this direction, the position hair on holographic dry plate is incided due to reconstruction beam
Changing, [Lai Tianshu, FIELD HOLOGRAPHY is theoretical, application and particulate hologram automatically analyze [D], Xi'an for document 1:Xi'an
University of communications, 1990:96] so that reproduction regions change, and with respect to image-forming objective lens transverse translation occurs for diffractive light field, causes
Same particle changes in the lateral coordinates of the reproduction image of different aspects, can not to particle carry out effectively identify, position and
Accept or reject, so as to produce considerable influence to measurement result.Document 2 [Chen Hanyong, Ma Dong, the Image processing of the Particles field holography figure whole audience
[J], photon journal, 1997,26 (5):439-443] in mention with software control mobile platform carry out horizontal Contrary compensation movement,
Offset the transverse translation of diffractional field.But this method is complex, and when object light is with ginseng light angle difference in holographic recording, spread out
The angle of diffraction difference of field is penetrated, the amount of movement of Contrary compensation is also different, in practical application and inconvenient.
3. original off-axis reproduction light path arrangement is difficult.Original essence for reproducing light channel structure is collection camera and image-forming objective lens
It is motionless, reproduce Particle Field and move integrally.Light path arrangement seems simple, and actually operation difficulty is very big：
A) collection camera is put with being had difficulties during image-forming objective lens.In order that the optical axis weight of collection camera and image-forming objective lens
Close, it is necessary to both are positioned on same root guide rail, and determine between the two every recycling the light pencil of laser to calibrate them
Optical axis.Then, during the optical axis and diffractional field optical axis coincidence of regulation image-forming objective lens, guide rail can be directly deflected, is made
The two devices deflect simultaneously, and whether collinearly calibrate both deflection angles by luminous point during image-forming objective lens using diffraction light
Degree.Because collection camera, image-forming objective lens, guide rail and corresponding adjusting bracket weight are big, move them and accurately control partially
Gyration difficulty is larger, so as to cause to adjust diffractional field optical axis with larger difficulty be present during image-forming objective lens optical axis coincidence.
B) had difficulties when regulation three-dimensional mobile platform z-axis is parallel with diffractional field optical axis.Due to three-dimensional mobile platform quality
Greatly, that its z-axis is accurately gone into the state difficulty parallel with diffractional field optical axis is larger.Meanwhile three-dimensional mobile platform rotates necessarily
After angle, fixation counterbore thereon can not be typically aligned with the screwed hole of optical table, so as to three-dimensional mobile platform relatively difficult to achieve
Stable fixation.
C) cause diffractional field that transverse translation occurs with respect to image-forming objective lens when holographic dry plate moves along diffractional field optical axis, to three-dimensional
The determination of mobile platform, holographic dry plate and image-forming objective lens initial position brings difficulty.At this moment, it is necessary to consider three-dimensional mobile flat
The factors such as platform stroke in three directions, the transverse translation amount of diffractional field, image-forming objective lens effective working distance, very not
Beneficial to operation.
D) angle correct of object light and reference light in vertical direction can not be carried out.In holographic recording process, incide complete
Object light and reference light on breath dry plate there may be a less angle perpendicular to optics table top direction, as shown in Figure 7.When
When there is such case, the optical axis of the optical axis and diffractional field that reproduce light can also have same angle.Due to this reproduction light path
The optical axis of reproduction light is to determine in structure, this angle can not be corrected, resulting error can not also avoid.
E) original off-axis reproduction light path adaptability is bad.Original reproduction light channel structure is only applicable to object light and angle between reference
Certain situation, if the angle of object light and reference light is changed in different experiments, the whole light path that reproduces is required for weight
New adjustment.
The content of the invention
The present invention proposes a kind of holographic coaxial and off-axis reproduction light path system of Particle Field and method, overcomes at present coaxially
And off-axis Particle Field reconstruction of hologram system in the application the defects of, realize that Particle Field is coaxial to be shared with off-axis gaussian beam playback system
The purpose of most of light path, improves adaptability.
Technical proposal that the invention solves the above-mentioned problems is：
A kind of Particle Field it is holographic coaxially and it is off-axis reproduce light path system, including light source beam-expanding collimation system, mirror system,
Reproduce acquisition system and adjust the accessory system of optical axis；The light source beam-expanding collimation system includes the reproduction set gradually along light path
Light source, beam expanding lens, filtering pin hole and collimating mirror；The mirror system includes completely reflecting mirror one and completely reflecting mirror two, described complete
Speculum one is arranged on the rear of collimating mirror along light path, and the completely reflecting mirror two is arranged on the side of completely reflecting mirror one；Total reflection
Mirror one and completely reflecting mirror two are installed in adjusting bracket；The reproduction acquisition system includes holographic dry plate, image-forming objective lens, collection
Camera, support one, support two, mobile platform controller and control computer；Support one is used to clamp holographic dry plate, two supports
Two are respectively used to support image-forming objective lens and gather camera, and support one is arranged on mobile platform x-axis y-axis assembly；Two supports
Two are arranged in mobile platform z-axis；The accessory system of the regulation optical axis includes He-Ne laser, diaphragm, the target of cross circle half
With the full target of cross circle；The He-Ne laser and diaphragm are successively set on the rear of completely reflecting mirror one along light path；It is described holographic dry
Plate, the target of cross circle half, image-forming objective lens, the full target of cross circle, collection camera are successively set on diaphragm rear along light path；Cross is justified
Enclose half target and the full target of cross circle is arranged on the support three with reset function；The mobile platform controller respectively with shifting
Moving platform x-axis y-axis assembly, the connection of mobile platform z-axis, the control computer control with collection camera and mobile platform respectively
Device connects.
Further, the reproduction light source is single mode continuous wave laser.
Further, the beam expanding lens uses microcobjective.
Further, the collimating mirror uses anaberration lens.
Further, the image-forming objective lens use the small depth of field lens group of anaberration.
Further, the collection camera is using high-resolution, the scientific grade CCD camera of low noise.
It is a kind of to adjust the holographic coaxial method for reproducing light path of Particle Field, comprise the following steps,
1) mobile platform x-axis y-axis assembly, support one and support two are assembled respectively；
2) make sideline of the mobile platform z-axis parallel to optical table, then fix mobile platform z-axis pedestal, by two
The long support plate of support two-way is arranged on the mobile table top of mobile platform z-axis, will be gathered camera and is arranged on the support two of rear end,
Make the axis and mobile platform z-axis pedestal keeping parallelism of collection camera；
3) position of single mode continuous wave laser is adjusted, in mobile platform z-axis whole stroke, it is ensured that light pencil is vertical all the time
Fall, fixed single mode continuous wave laser constant at the sensitive face center of collection camera；
4) the full target of cross circle is installed before camera is gathered, light pencil is impinged perpendicularly in the target plate of the full target of cross circle
The heart；
5) image-forming objective lens are arranged on the support two of front end, the distance of coarse adjustment image-forming objective lens and collection camera, protected simultaneously
The optical axis of card image-forming objective lens overlaps with light pencil；
6) on y-axis movement table top support one being arranged in mobile platform x-axis y-axis assembly, holographic dry plate is clamped
On support one, light pencil is set to point to holographic dry plate intermediate region, adjustment support one ensures holographic dry plate in the whole of x-y plane
It is vertical with light pencil in stroke range, while the distance between mobile platform x-axis y-axis assembly and mobile platform z-axis are controlled,
In the moving process for ensureing mobile platform z-axis, the working face of image-forming objective lens is capable of the axial range of inswept whole reproduction image, then
Fixed mobile platform x-axis pedestal；
7) collimating mirror, filtering pin hole and beam expanding lens are installed successively, adjust relative position between collimating mirror and beam expanding lens and
The position of pin hole is filtered, controls mobile platform x-axis y-axis assembly, removes holographic dry plate, the directional light of beam-expanding collimation is by imaging
The light beam being amplified after object lens, light beam is vertical with the full target of cross circle, and concentric with the circle on target plate；
8) the full target of cross circle is removed；
9) accurate adjustment image-forming objective lens make the rear working face and collection camera of image-forming objective lens with gathering the distance between camera
Sensitive face overlap, after regulation keep image-forming objective lens and collection camera between distance immobilize；
10) mobile platform x-axis y-axis assembly is controlled, mobile holographic dry plate, reproduction illumination is mapped to the centre of holographic dry plate
Region.
Now, it is coaxial to reproduce that light path is adjusted to be finished.
It is a kind of to adjust the holographic off-axis method for reproducing light path of Particle Field, comprise the following steps,
1) mobile platform x-axis y-axis assembly, support one and support two are assembled respectively；
2) make sideline of the mobile platform z-axis parallel to optical table, then fix mobile platform z-axis pedestal, by two
The long support plate of support two-way is arranged on the mobile table top of mobile platform z-axis, will be gathered camera and is arranged on the support two of rear end,
Make the axis and mobile platform z-axis pedestal keeping parallelism of collection camera；
3) position of single mode continuous wave laser is adjusted, in mobile platform z-axis whole stroke, it is ensured that light pencil is vertical all the time
Fall, fixed single mode continuous wave laser constant at the sensitive face center of collection camera；
4) the full target of cross circle is installed before camera is gathered, light pencil is impinged perpendicularly in the target plate of the full target of cross circle
The heart；
5) image-forming objective lens are arranged on the support two of front end, the distance of coarse adjustment image-forming objective lens and collection camera, protected simultaneously
The optical axis of card image-forming objective lens overlaps with light pencil；
6) on y-axis movement table top support one being arranged in mobile platform x-axis y-axis assembly, holographic dry plate is clamped
On support one, light pencil is set to point to holographic dry plate intermediate region, adjustment support one ensures holographic dry plate in the whole of x-y plane
It is vertical with light pencil in stroke range, while the distance between mobile platform x-axis y-axis assembly and mobile platform z-axis are controlled,
In the moving process for ensureing mobile platform z-axis, the working face of image-forming objective lens is capable of the axial range of inswept whole reproduction image, then
Fixed mobile platform x-axis pedestal；
7) collimating mirror, filtering pin hole and beam expanding lens are installed successively, adjust relative position between collimating mirror and beam expanding lens and
The position of pin hole is filtered, controls mobile platform x-axis y-axis assembly, removes holographic dry plate, the directional light of beam-expanding collimation is by imaging
The light beam being amplified after object lens, light beam is vertical with the full target of cross circle, and concentric with the circle on target plate；
8) the full target of cross circle is removed；
9) accurate adjustment image-forming objective lens make the rear working face and collection camera of image-forming objective lens with gathering the distance between camera
Sensitive face overlap, after regulation keep image-forming objective lens and collection camera between distance immobilize；
10) the full target of cross circle is resetted, places He-Ne laser, and adjusts position, rotation and the pitching of He-Ne laser,
Make optical axis of the light pencil that it sends by image-forming objective lens, then impinge perpendicularly on the center of the full target of cross circle so that imaging thing
The diffraction ring that mirror interior lens reflect and the diaphragm before He-Ne laser are concentric, then fix He-Ne laser；
11) target of cross circle half is installed, the light pencil vertical incidence cross circle for sending He-Ne laser before image-forming objective lens
Enclose the target plate of half target and, cross circle half target top edge, image-forming objective lens optical axis and cross circle full target target center etc. tangent with target center
It is high；
12) mobile platform x-axis y-axis assembly is controlled, two axles is moved among stroke, installs and be all-trans after collimating mirror
Mirror one and completely reflecting mirror two are penetrated, adjusts reflector mount position, rotation and the pitching of completely reflecting mirror one and completely reflecting mirror two, it is first rough
Regulation reconstruction beam incides angle on holographic dry plate, makes the angle close to the incidence angle of reference light during holographic recording, then
The reflector mount of accurate adjustment completely reflecting mirror one and completely reflecting mirror two, make the latter half of reproduction image and the circle of the target of cross circle half
Circle is concentric, and the top half of reproduction image is also concentric with the circle of the full target of cross circle after image-forming objective lens are imaged, by multiple
The reflector mount of completely reflecting mirror one and completely reflecting mirror two is adjusted repeatedly, and optical axis and the image-forming objective lens optical axis of final reproduction image reach weight
Close；
13) target of cross circle half and full target are removed.
Now, optical path adjusting is reproduced off axis to finish.
Advantages of the present invention is：
1. coaxial reproduce of the invention reproduces common optical pathways with off-axis.During coaxial reproduction, two total reflective mirrors need to only be removed i.e.
Can, using limited optics table top and optics, the coaxial purpose for reproducing and reproducing off axis, time saving province can be realized simultaneously
Power.
2. the x-axis y-axis assembly control holographic dry plate of mobile platform of the present invention only moves in x-y plane, along diffraction light
Axle without motion, eliminate transverse translation problem of the diffractional field relative to image-forming objective lens.In addition, put down by reproducing Particle Field in x-y
Transverse movement in face reaches collection camera and gathers purpose to " framing " that reproduces Particle Field, can overcome because of mobile platform stroke
Deficiency can not gather a problem of flood reproduces image completely.
3. mobile platform is divided into two parts by the present invention, the weight of each section is alleviated, reduces and reproduces light path
Difficulty is adjusted, i.e., in the case where the long period is without using light path is reproduced, is also easy to correction and recovers.
It is holographic dry that 4. the present invention because two completely reflecting mirrors are installed in adjusting bracket, can control reproduction light to incide
Angle on plate, so as to meet different object lights and the holographic recording under angle between reference, improve off-axis reproduction light path
Adaptability.Alternatively, it is also possible to complete the angle correct of object light and reference light in vertical direction.
5. the present invention adds the target of cross circle half and the full target of cross circle respectively before and after image-forming objective lens, it is possible to increase spreads out
Penetrate the precision that an optical axis overlaps with the regulation of image-forming objective lens optical axis.
6. coaxial reproduction of the invention gathers or reproduces collection off axis, it can be realized by software control full automatic
Collection.
Brief description of the drawings
Fig. 1 is In-line Holography for Particle Field recording beam path figure；
Fig. 2 is Particle Field off-axis gaussian beam recording beam path figure；
Fig. 3 is that Particle Field coaxially reproduces index path；
Fig. 4 is that particle field off-axis reproduces index path；
Fig. 5 is the schematic diagram for the layering framing acquisition mode for reproducing Particle Field；
The schematic diagram of transverse translation occurs with respect to image-forming objective lens for diffractional field when Fig. 6 is off-axis reproduces；
Fig. 7 is the schematic diagram that object light and reference light have angle on the direction of horizontal plane；
Fig. 8 coaxially reproduces index path for the present invention is holographic with off-axis；
Fig. 9 is the structural representation of completely reflecting mirror adjusting bracket of the present invention；
Figure 10 is the scheme of installation of mobile platform x-axis y-axis assembly of the present invention and support one；
Figure 11 is mobile platform z-axis of the present invention, support two, image-forming objective lens and the scheme of installation for gathering camera；
Figure 12 is the scheme of installation of the full target of cross circle of the present invention, the target of cross circle half and support three.
Reference：
11- pulse lasers, 12- beam-expanding collimation mirrors, 13- atomizers, 14- atomizations field, 15-4F optical imaging systems,
16- object lights, 17- reference lights, 18- holographic dry plates；
21- pulse lasers, 22- spectroscopes, 23,24,29,210- completely reflecting mirrors, 25,211- beam-expanding collimation mirrors, 26- mists
Change nozzle, 27- atomizations field, 28-4F optical imaging systems, 212-- reference lights, 213- object lights, 214- holographic dry plates；
31- single mode continuous wave lasers, 32- beam expanding lens, 33- filtering pin holes, 34- collimating mirrors, 35- reproduce light, and 36- is holographic dry
Plate, 37- three-dimensional mobile platforms, 38- diffractional fields, 39- image-forming objective lens leading faces, 310- image-forming objective lens, 311- collections are mutually clever
Quick face, 312- collection cameras, 313- control computers, 314- reproduce the optical axis of light, 315- mobile platform controllers；
41- single mode continuous wave lasers, 42- beam expanding lens, 43- filtering pin holes, 44- collimating mirrors, 45- reproduce light, and 46- is holographic dry
Plate, 47- three-dimensional mobile platforms, 48- diffractional fields, 49- image-forming objective lens leading faces, 410- image-forming objective lens, 411- collections are mutually clever
Quick face, 412- collection cameras, 413- control computers, 414- reproduce the optical axis of light, 415- mobile platform controllers, 416- diffraction
Light optical axis, 417- reproduce light optical axis and the acute angle folded by diffractional field optical axis；
61- reproduce light optical axis, the holographic dry plate of 62- initial positions, 63- moved along diffraction optical axis after holographic dry plate,
Diffractional field after transverse translation, the diffractional field optical axis of 66- initial positions, 67- diffraction occur for the diffractional field of 64- initial positions, 65-
Diffractional field optical axis after transverse translation occurs for field；
71- object light light beams, 72- reference light light beams, 73- holographic dry plates；
81- single mode continuous wave lasers, 82- beam expanding lens, 83- filtering pin holes, 84- collimating mirrors, 85- completely reflecting mirrors one, 86- is complete
Speculum two, 87- He-Ne lasers, 88- diaphragms, 89- holographic dry plates, the target of 810- crosses circle half, 811- image-forming objective lens, 812-
The full target of cross circle, 813- collection cameras, 814- mobile platform z-axis, 815- mobile platform x-axis y-axis assemblys, 816- movements are flat
Platform controller, 817- control computers；
91- reflector mounts, 92- pitch regulation nuts, 93- beat adjusting nuts, 95- poles, 96- pole pedestals, 97- poles
Locking nut；
101- mobile platform x-axis pedestals, 102-x axles movement table top, the support of 103- mobile platform x-axis y-axis assemblys,
104- mobile platform y-axis pedestals, 105-y axles movement table top, 106- holographic dry plate holding frames, 107- rotary luffing platforms, 108- are mono-
Axle tilting table；
111- mobile platform z-axis pedestals, 112- movement table tops, the long support plates of 113-, the lifting platform of 114- supports two, 115- branch
The two-dimension translational platform of frame two, the turntable of 116- supports two, the tilting table of 117- supports two；
122- dry plates press from both sides, 123- poles, 124- limit for height rings, 125- limit for height ring locking nuts, 126- pole pedestals, 127- poles
Locking nut.
Embodiment
Present disclosure is described in further detail below in conjunction with the drawings and specific embodiments：
The present invention proposes a kind of new Particle Field reconstruction of hologram light path system, overcomes coaxial at present and off-axis Particle Field
Reconstruction of hologram system in actual applications the defects of, realize that Particle Field is coaxial and off-axis gaussian beam playback system shares most of light
The purpose on road, improves adaptability.
As shown in figure 8, reproduction light path provided by the invention is adopted including light source beam-expanding collimation system, mirror system, reproduction
Collecting system, the accessory system for adjusting optical axis；
Light source beam-expanding collimation system includes reproduction light source, beam expanding lens 82, filtering pin hole 83 and the standard set gradually along light path
Straight mirror 84, light source beam-expanding collimation system are provided uniform beam-expanding collimation light as light is reproduced, reproduce light source and continuously swashed using single mode
Light device 81, the wavelength for reproducing light source are identical with pulse laser wavelength used during holographic recording.
Mirror system includes completely reflecting mirror 1 and completely reflecting mirror 2 86, and completely reflecting mirror 1 is arranged on collimation along light path
The rear of mirror 84, completely reflecting mirror 2 86 are arranged on the side of completely reflecting mirror 1；Completely reflecting mirror 1 and completely reflecting mirror 2 86 are equal
In adjusting bracket, adjusting bracket control reproduction light incides the angle on holographic dry plate 89 when reproducing off axis；Such as Fig. 9 institutes
Show, pole 95 is arranged in pole pedestal 96, can adjust height, the rotation of completely reflecting mirror 1 and completely reflecting mirror 2 86, then
Locked by branch stem jam nut 97, after pole pedestal position adjustments, optics is fixed on by Magnetic gauge stand or Y type pressing plates
On platform, reproduction light incides the angle on holographic dry plate 89, can pass through the He of pitch regulation nut 92 on reflector mount 91
Beat adjusting nut 93 is fine-tuned.
Acquisition system realization is reproduced to gather " the layering framing " that reproduces Particle Field, including holographic dry plate 89, image-forming objective lens
811st, camera 813, support one, support two, mobile platform controller 816 and control computer 817 are gathered.Support one has three
The rotation regulatory function (rotation, pitching and beat) of the free degree, support two have regulatory function (lifting and two of six-freedom degree
Dimension translation, rotation, pitching and beat).Support two is used to support image-forming objective lens 811 and collection camera 813, and to image-forming objective lens
811 move and are adjusted with the rotation, pitching, height peace for gathering camera 813；Support one is used to clamp holographic dry plate 89, simultaneously
Rotation, pitching and beat that can be to holographic dry plate 89 be adjusted.Support one is arranged on mobile platform x-axis y-axis assembly 815
On, so as to control support one to be moved in x-y plane, as shown in Figure 10；Two long support plates of support two-way are arranged on mobile flat
In platform z-axis 814, so as to control support two to move in a z-direction, as shown in figure 11.Image-forming objective lens 811 have certain times magnification
Rate, imaged in after Particle Field amplification will be reproduced in the sensitive face of collection camera 813.
The accessory system for adjusting optical axis is complete including He-Ne laser 87, diaphragm 88, the target 810 of cross circle half and cross circle
Target 812, He-Ne laser 87 and diaphragm 88 are successively set on the rear of completely reflecting mirror 1 along light path；Adjust the accessory system of optical axis
For auxiliary adjustment diffractional field optical axis and the optical axis coincidence of image-forming objective lens 811.
Holographic dry plate 89, the target 810 of cross circle half, image-forming objective lens 811, the full target 812 of cross circle, collection camera 813 edge
Light path is successively set on the rear of diaphragm 88；Mobile platform controller 816 respectively with mobile platform x-axis y-axis assembly 815, mobile
Platform z-axis 814 connects, and controls its movement, and control computer 817 connects with collection camera 813 and mobile platform controller 816 respectively
Connect.By self-editing control software, control three-dimensional mobile platform is often moved move a step after gather piece image, gather and preserved image
Afterwards, three-dimensional mobile platform starts the movement of next step, so as to realize automatic data collection to reproducing Particle Field according to Fig. 5 order.
The demountable target 810 of cross circle half and the full target of cross circle are set respectively before and after image-forming objective lens 811
812, the target 810 of cross circle half and the full target 812 of cross circle are arranged on the support three with pin-point accuracy reset function, side
Just optical axis coincidence of the optical axis with image-forming objective lens 811 of diffractional field is adjusted, as shown in figure 12.The target 810 of cross circle half and cross circle
Enclose full target 812 and 122 clampings are pressed from both sides by dry plate, dry plate folder 122 is arranged in pole pedestal 126 by pole 123 (pacifies in advance on pole
Fill limit for height ring 124), after regulation finishes the target 810 of cross circle half and the full target 812 of cross circle, lock limit for height ring locking nut
125, ensure that the height after target plate reset is constant.
During off-axis reproduction, on the basis of coaxially light path is reproduced, it will be expanded using completely reflecting mirror 1 and completely reflecting mirror 2 86
The outgoing directional light reflection of beam collimating mirror 84, which is retreaded, to be incided on holographic dry plate 89, as reconstruction beam, is adjusted by adjusting bracket
Position and the angle of whole completely reflecting mirror 1 and completely reflecting mirror 2 86, reproduction light can be controlled to incide the angle on holographic dry plate 89
Degree.
Three-dimensional mobile platform is split into two parts by the present invention：(x-axis is most as a part for the assembly of x-axis and y-axis
Lower section), z-axis is separately as a part.Holographic dry plate 89 is clamped on support one, can be in x-y with the movement of mobile platform
Move in plane, then the Particle Field of reproduction also follows the synchronizing moving of holographic dry plate 89.Image-forming objective lens 811 and collection camera 813
It is installed on by support two in mobile platform z-axis 814, their spacing is adjustable, is immobilized after regulating, they can be simultaneously
Moved with z-axis.
The key that the arrangement present invention reproduces light path is that light source beam-expanding collimation system and reproduction acquisition system remain optical axis
Overlap, can coaxially be reproduced；After two completely reflecting mirrors, its position, angle and pitching are adjusted, control reproduces entering for light
Firing angle degree, make the optical axis and light source beam-expanding collimation system, the optical axis coincidence of reproduction acquisition system of diffractional field, so as to realize off axis again
It is existing, and the other parts entirely reproduced in light path are motionless.
It is a kind of to adjust the holographic coaxial method for reproducing light path of Particle Field, comprise the following steps,
1) mobile platform x-axis y-axis assembly 815, the support one for clamping holographic dry plate 89, support image-forming objective lens are assembled respectively
811 and collection camera 813 support two；
2) make a certain sideline of the mobile platform z-axis parallel to optical table, then fix mobile platform z-axis pedestal 111,
The long support plate 113 of two support two-ways is arranged on the mobile table top 112 of mobile platform z-axis 814, collection camera 813 is pacified
On the support two of rear end, make the axis and the pedestal keeping parallelism of mobile platform z-axis 814 of collection camera 813；
3) position of single mode continuous wave laser 81 is adjusted, in 814 whole strokes of mobile platform z-axis, it is ensured that light pencil begins
Vertically fall, fixed single mode continuous wave laser 81 constant at the sensitive face center of collection camera 813, guarantee single mode continuous wave laser eventually
There is sufficient space to place other parts between 81 and mobile platform z-axis 814；
4) the full target 812 of cross circle is installed before camera 813 is gathered, light pencil is impinged perpendicularly on the full target of cross circle
812 target plate center, the support three of fixed target plate need the function of parking position accuracy；
5) image-forming objective lens 811 are arranged on support two, the distance between coarse adjustment image-forming objective lens 811 and collection camera 813,
Meanwhile ensureing that the optical axis of image-forming objective lens 811 overlaps with light pencil, i.e., light pencil passes through still vertical incidence after image-forming objective lens 811
The center of the full target 812 of cross circle below is arrived, and the luminous point that light pencil is formed on the interior lens surface of image-forming objective lens 811 is total to
Line；
6) mobile platform x-axis y-axis assembly is moved among stroke, support one is arranged on mobile platform x-axis y-axis group
On y-axis movement table top 105 in zoarium 815, holographic dry plate 89 (film surface backlight) is installed, light pencil is pointed to holographic dry plate
89 intermediate regions, it is vertical with light pencil that adjustment support one ensures that holographic dry plate 89 is intended in the whole stroke range of x-y plane.
Meanwhile the distance between mobile platform x-axis y-axis assembly 815 and mobile platform z-axis 814 are also controlled, ensure mobile platform z
In the moving process of axle 814, the working face of image-forming objective lens 811 is capable of the axial range of inswept whole reproduction image, then fixed to move
Moving platform x-axis pedestal 101；
7) collimating mirror 84, filtering pin hole 83 and beam expanding lens 82 are installed successively, adjust the relative position between them and filtering
The position of pin hole 83, ensure the quality of beam-expanding collimation directional light, obtain the preferable collimated light beam of quality (reproducing light), control moves
Moving platform x-axis y-axis assembly 815, removes holographic dry plate 89, and the directional light of beam-expanding collimation is put after image-forming objective lens 811
Big light beam, the target plate of light beam target 812 complete with cross circle is vertical and concentric with the circle on target plate, that is, ensures collimating mirror 84
It is coaxial with image-forming objective lens 811；
8) the full target 812 of cross circle is removed, retains its resetting means, is resetted after being easy to；
9) the subsidiary special device containing crosshair of image-forming objective lens 811 is utilized, gathers what camera 813 obtained by observing
Crosshair image, accurate adjustment image-forming objective lens 811 are with gathering the distance between camera 813, when crosshair image clearly is sharp
When sharp, illustrate that the rear working face of image-forming objective lens 811 overlaps with gathering the sensitive face of camera 813, be kept into after regulation as thing
Distance immobilizes between mirror 811 and collection camera 813；
10) mobile platform x-axis y-axis assembly 815 is controlled, mobile holographic dry plate 89, reproduction illumination is mapped to holographic dry plate
89 intermediate region.
Now, it is coaxial to reproduce that light path is adjusted to be finished.
It is a kind of to adjust the holographic off-axis method for reproducing light path of Particle Field, comprise the following steps,
1) mobile platform x-axis y-axis assembly 815, the support one for clamping holographic dry plate 89, support image-forming objective lens are assembled respectively
811 and collection camera 813 support two；
2) make a certain sideline of the mobile platform z-axis parallel to optical table, then fix mobile platform z-axis pedestal 111,
The long support plate 113 of two support two-ways is arranged on the mobile table top 112 of mobile platform z-axis 814, collection camera 813 is pacified
On the support two of rear end, make the axis and the pedestal keeping parallelism of mobile platform z-axis 814 of collection camera 813；
3) position of single mode continuous wave laser 81 is adjusted, in 814 whole strokes of mobile platform z-axis, it is ensured that light pencil begins
Vertically fall, fixed single mode continuous wave laser 81 constant at the sensitive face center of collection camera 813, guarantee single mode continuous wave laser eventually
There is sufficient space to place other parts between 81 and mobile platform z-axis 814；
4) the full target 812 of cross circle is installed before camera 813 is gathered, light pencil is impinged perpendicularly on the full target of cross circle
812 target plate center, the support three of fixed target plate need the function of parking position accuracy；
5) image-forming objective lens 811 are arranged on support two, the distance between coarse adjustment image-forming objective lens 811 and collection camera 813,
Meanwhile ensureing that the optical axis of image-forming objective lens 811 overlaps with light pencil, i.e., light pencil passes through still vertical incidence after image-forming objective lens 811
The center of the full target 812 of cross circle below is arrived, and the luminous point that light pencil is formed on the interior lens surface of image-forming objective lens 811 is total to
Line；
6) mobile platform x-axis y-axis assembly is moved among stroke, support one is arranged on mobile platform x-axis y-axis group
On y-axis movement table top 105 in zoarium 815, holographic dry plate 89 (film surface backlight) is installed, light pencil is pointed to holographic dry plate
89 intermediate regions, it is vertical with light pencil that adjustment support one ensures that holographic dry plate 89 is intended in the whole stroke range of x-y plane.
Meanwhile the distance between mobile platform x-axis y-axis assembly 815 and mobile platform z-axis 814 are also controlled, ensure mobile platform z
In the moving process of axle 814, the working face of image-forming objective lens 811 is capable of the axial range of inswept whole reproduction image, then fixed to move
Moving platform x-axis pedestal 101；
7) collimating mirror 84, filtering pin hole 83 and beam expanding lens 82 are installed successively, adjust the relative position between them and filtering
The position of pin hole 83, ensure the quality of beam-expanding collimation directional light, obtain the preferable collimated light beam of quality (reproducing light), control moves
Moving platform x-axis y-axis assembly 815, removes holographic dry plate 89, and the directional light of beam-expanding collimation is put after image-forming objective lens 811
Big light beam, the target plate of light beam target 812 complete with cross circle is vertical and concentric with the circle on target plate, that is, ensures collimating mirror 84
It is coaxial with image-forming objective lens 811；
8) the full target 812 of cross circle is removed, retains its resetting means, is resetted after being easy to；
9) the subsidiary special device containing crosshair of image-forming objective lens 811 is utilized, gathers what camera 813 obtained by observing
Crosshair image, accurate adjustment image-forming objective lens 811 are with gathering the distance between camera 813, when crosshair image clearly is sharp
When sharp, illustrate that the rear working face of image-forming objective lens 811 overlaps with gathering the sensitive face of camera 813, be kept into after regulation as thing
Distance immobilizes between mirror 811 and collection camera 813；
10) the full target 812 of cross circle is resetted, places He-Ne laser 87, and adjusts the position of He-Ne laser 87, rotation
And pitching, make optical axis of the light pencil that it sends by image-forming objective lens 811, then impinge perpendicularly in the full target 812 of cross circle
The heart so that the diffraction ring (or luminous point) that the interior lens of image-forming objective lens 811 reflect also with the diaphragm 88 before He-Ne laser
With one heart, fixed He-Ne laser；
11) target 810 of cross circle half, the light pencil vertical incidence for sending He-Ne laser are installed before image-forming objective lens 811
The target plate of the target 810 of cross circle half is simultaneously tangent with target center, and the support three of fixed target plate needs the function of parking position accuracy, from side
See, the top edge of half target of cross circle 810, the optical axis of image-forming objective lens 811 and the full target center of target 812 of cross circle are contour；
12) mobile platform x-axis y-axis assembly 815 is controlled, two axles is moved among stroke, pacifies after collimating mirror 84
Completely reflecting mirror 1 and completely reflecting mirror 2 86 are filled, adjusts reflector mount position, the rotation of completely reflecting mirror 1 and completely reflecting mirror 2 86
Turn and pitching, first coarse adjustment reconstruction beam incide the angle on holographic dry plate 89, joined when making the angle close to holographic recording
The incidence angle of light is examined, then the reflector mount 91 of accurate adjustment completely reflecting mirror 1 and completely reflecting mirror 2 86, made under reproduction image
Half part and the circle of the target 810 of cross circle half are concentric, and the top half of reproduction image is after the imaging of image-forming objective lens 811 also with ten
The circle of the full target 812 of word circle is concentric, by the reflector mount for repeatedly adjusting completely reflecting mirror 1 and completely reflecting mirror 2 86 repeatedly
91, the optical axis of final reproduction image reaches with the optical axis of image-forming objective lens 811 to be overlapped；
13) target of cross circle half and full target are removed.
The present invention reproduces light path and is mainly used in laser-pulsed holography diagnostic test room, reproduces the major parameter of light path such as
Under：Reproduction laser light light source uses 532nm single mode continuous solid body lasers；Beam expanding lens uses the microcobjective of 20 times of amplifications, filtering
25 μm of the diameter of pin hole, collimating mirror export the diameter 60mm of directional light；Completely reflecting mirror protects silver-colored speculum using diameter 50.8mm；
Image-forming objective lens use the small depth of field lens group of anaberration, and it carries the servicing unit of leading face positioning, 3 times of magnifying powers, bore
Resolving power is less than 5 μm in 60mm, object plane Φ 17mm；Gather camera 813 and use high-resolution, the scientific grade CCD camera of low noise, as
First 2048 × 2048pixels of number, 7.4 μm of 7.4 μ m of pixel dimension；The stroke 150mm of mobile platform, 1.25 μm of minimum step.
One main optical path only need to be built on optical table by the method for the present invention, can both realize coaxial reproduction,
Off-axis reproduction can be realized, not only saved the space of optics table top, also save a large amount of optical components, reduce experiment into
This, meanwhile, substantial amounts of repetitive operation is it also avoid, has saved the time of scientific research personnel, drastically increases the work in laboratory
Make efficiency, be highly suitable for the Research-oriented Lab that experiment condition often changes.
Claims (8)
1. a kind of Particle Field is holographic coaxially and off axis to reproduce light path system, it is characterised in that：Including light source beam-expanding collimation system, instead
Mirror system is penetrated, reproduce acquisition system and adjusts the accessory system of optical axis；
The light source beam-expanding collimation system includes reproduction light source, beam expanding lens, filtering pin hole and the collimating mirror set gradually along light path；
The mirror system includes completely reflecting mirror one and completely reflecting mirror two, and the completely reflecting mirror one is arranged on collimating mirror along light path
Rear, the completely reflecting mirror two is arranged on the side of completely reflecting mirror one；Completely reflecting mirror one and completely reflecting mirror two are installed in tune
Save on support；
The reproduction acquisition system includes holographic dry plate, image-forming objective lens, collection camera, support one, support two, mobile platform control
Device and control computer；Support one is used to clamp holographic dry plate, and two supports two are respectively used to support image-forming objective lens and gather phase
Machine, support one are arranged on mobile platform x-axis y-axis assembly；Two supports two are arranged in mobile platform z-axis；
The accessory system of the regulation optical axis includes He-Ne laser, diaphragm, the target of cross circle half and the full target of cross circle；It is described
He-Ne laser and diaphragm are successively set on the rear of completely reflecting mirror one along light path；
The holographic dry plate, the target of cross circle half, image-forming objective lens, the full target of cross circle, collection camera are successively set on along light path
Diaphragm rear；The target of cross circle half and the full target of cross circle are arranged on the support three with reset function；
The mobile platform controller is connected with mobile platform x-axis y-axis assembly, mobile platform z-axis respectively, and the control calculates
Machine is connected with collection camera and mobile platform controller respectively.
2. Particle Field according to claim 1 is holographic coaxially and off axis to reproduce light path system, it is characterised in that：The reproduction
Light source is single mode continuous wave laser.
3. Particle Field according to claim 1 is holographic coaxially and off axis to reproduce light path system, it is characterised in that：It is described to expand
Mirror uses microcobjective.
4. the holographic coaxial and off-axis reproduction light path system of the Particle Field according to claim 1 or 2 or 3, it is characterised in that：Institute
State collimating mirror and use anaberration lens.
5. Particle Field according to claim 4 is holographic coaxially and off axis to reproduce light path system, it is characterised in that：The imaging
Object lens use the small depth of field lens group of anaberration.
6. Particle Field according to claim 5 is holographic coaxially and off axis to reproduce light path system, it is characterised in that：The collection
Camera is using high-resolution, the scientific grade CCD camera of low noise.
It is 7. holographic coaxially and off-axis to reproduce light path system regulation Particle Field complete based on any described Particle Field of claim 1 to 6
The coaxial method for reproducing light path of breath, it is characterised in that：Comprise the following steps,
1) mobile platform x-axis y-axis assembly, support one and support two are assembled respectively；
2) make sideline of the mobile platform z-axis parallel to optical table, then fix mobile platform z-axis pedestal, by two supports
The long support plate of two-way is arranged on the mobile table top of mobile platform z-axis, will be gathered camera and is arranged on the support two of rear end, makes to adopt
Collect the axis and mobile platform z-axis pedestal keeping parallelism of camera；
3) position of single mode continuous wave laser is adjusted, in mobile platform z-axis whole stroke, it is ensured that light pencil vertically falls all the time
It is constant to gather the sensitive face center of camera, fixed single mode continuous wave laser；
4) the full target of cross circle is installed before camera is gathered, light pencil is impinged perpendicularly on the target plate center of the full target of cross circle；
5) by image-forming objective lens be arranged on front end support two on, coarse adjustment image-forming objective lens with collection camera distance, while ensure into
As the optical axis of object lens overlaps with light pencil；
6) on y-axis movement table top support one being arranged in mobile platform x-axis y-axis assembly, holographic dry plate is clamped in branch
On frame one, light pencil is set to point to holographic dry plate intermediate region, adjustment support one ensures whole stroke of the holographic dry plate in x-y plane
In the range of it is vertical with light pencil, while control the distance between mobile platform x-axis y-axis assembly and mobile platform z-axis, ensure
In the moving process of mobile platform z-axis, the working face of image-forming objective lens is capable of the axial range of inswept whole reproduction image, then fixes
Mobile platform x-axis pedestal；
7) collimating mirror, filtering pin hole and beam expanding lens are installed successively, adjust the relative position between collimating mirror and beam expanding lens and filtering
The position of pin hole, mobile platform x-axis y-axis assembly is controlled, removes holographic dry plate, the directional light of beam-expanding collimation passes through image-forming objective lens
The light beam being amplified afterwards, light beam is vertical with the full target of cross circle, and concentric with the circle on target plate；
8) the full target of cross circle is removed；
9) accurate adjustment image-forming objective lens make the spirit of the rear working face and collection camera of image-forming objective lens with gathering the distance between camera
Quick face overlaps, and keeps distance between image-forming objective lens and collection camera to immobilize after regulation；
10) mobile platform x-axis y-axis assembly is controlled, mobile holographic dry plate, reproduction illumination is mapped to the middle area of holographic dry plate
Domain.
It is 8. holographic coaxially and off-axis to reproduce light path system regulation Particle Field complete based on any described Particle Field of claim 1 to 6
The off-axis method for reproducing light path of breath, it is characterised in that：Comprise the following steps,
1) mobile platform x-axis y-axis assembly, support one and support two are assembled respectively；
2) make sideline of the mobile platform z-axis parallel to optical table, then fix mobile platform z-axis pedestal, by two supports
The long support plate of two-way is arranged on the mobile table top of mobile platform z-axis, will be gathered camera and is arranged on the support two of rear end, makes to adopt
Collect the axis and mobile platform z-axis pedestal keeping parallelism of camera；
3) position of single mode continuous wave laser is adjusted, in mobile platform z-axis whole stroke, it is ensured that light pencil vertically falls all the time
It is constant to gather the sensitive face center of camera, fixed single mode continuous wave laser；
4) the full target of cross circle is installed before camera is gathered, light pencil is impinged perpendicularly on the target plate center of the full target of cross circle；
5) by image-forming objective lens be arranged on front end support two on, coarse adjustment image-forming objective lens with collection camera distance, while ensure into
As the optical axis of object lens overlaps with light pencil；
6) on y-axis movement table top support one being arranged in mobile platform x-axis y-axis assembly, holographic dry plate is clamped in branch
On frame one, light pencil is set to point to holographic dry plate intermediate region, adjustment support one ensures whole stroke of the holographic dry plate in x-y plane
In the range of it is vertical with light pencil, while control the distance between mobile platform x-axis y-axis assembly and mobile platform z-axis, ensure
In the moving process of mobile platform z-axis, the working face of image-forming objective lens is capable of the axial range of inswept whole reproduction image, then fixes
Mobile platform x-axis pedestal；
7) collimating mirror, filtering pin hole and beam expanding lens are installed successively, adjust the relative position between collimating mirror and beam expanding lens and filtering
The position of pin hole, mobile platform x-axis y-axis assembly is controlled, removes holographic dry plate, the directional light of beam-expanding collimation passes through image-forming objective lens
The light beam being amplified afterwards, light beam is vertical with the full target of cross circle, and concentric with the circle on target plate；
8) the full target of cross circle is removed；
9) accurate adjustment image-forming objective lens make the spirit of the rear working face and collection camera of image-forming objective lens with gathering the distance between camera
Quick face overlaps, and keeps distance between image-forming objective lens and collection camera to immobilize after regulation；
10) the full target of cross circle is resetted, places He-Ne laser, and adjusts position, rotation and the pitching of He-Ne laser, makes it
The light pencil sent is by the optical axises of image-forming objective lens, then impinges perpendicularly on the center of the full target of cross circle so that in image-forming objective lens
The diffraction ring that portion's lens reflecting is returned and the diaphragm before He-Ne laser are concentric, then fix He-Ne laser；
11) target of cross circle half is installed, the light pencil vertical incidence cross circle half for sending He-Ne laser before image-forming objective lens
The target plate of target is simultaneously tangent with target center, and the target top edge of cross circle half, image-forming objective lens optical axis and the full target target center of cross circle are contour；
12) mobile platform x-axis y-axis assembly is controlled, two axles is moved among stroke, completely reflecting mirror is installed after collimating mirror
One and completely reflecting mirror two, adjust reflector mount position, rotation and the pitching of completely reflecting mirror one and completely reflecting mirror two, first coarse adjustment
Reconstruction beam incides the angle on holographic dry plate, makes the angle close to the incidence angle of reference light during holographic recording, then accurately
The reflector mount of completely reflecting mirror one and completely reflecting mirror two is adjusted, makes the latter half of reproduction image and the circle of the target of cross circle half same
The heart, the top half of reproduction image is also concentric with the circle of the full target of cross circle after image-forming objective lens are imaged, by repeatedly repeatedly
The reflector mount of completely reflecting mirror one and completely reflecting mirror two is adjusted, the optical axis of final reproduction image reaches with image-forming objective lens optical axis to be overlapped；
13) target of cross circle half and full target are removed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710757551.6A CN107688284B (en) | 2017-08-29 | 2017-08-29 | Particle field holographic on-axis and off-axis reproduction light path system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710757551.6A CN107688284B (en) | 2017-08-29 | 2017-08-29 | Particle field holographic on-axis and off-axis reproduction light path system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107688284A true CN107688284A (en) | 2018-02-13 |
| CN107688284B CN107688284B (en) | 2024-03-12 |
Family
ID=61155619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710757551.6A Active CN107688284B (en) | 2017-08-29 | 2017-08-29 | Particle field holographic on-axis and off-axis reproduction light path system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107688284B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110231036A (en) * | 2019-07-19 | 2019-09-13 | 广东博智林机器人有限公司 | A kind of robotic positioning device and method based on cross laser and machine vision |
| CN114721162A (en) * | 2022-03-25 | 2022-07-08 | 华中科技大学 | Adjusting system for Tomo-PIV (Tomo-particle image velocimetry) volume optical path and calibration plate position correction method |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0651686A (en) * | 1992-08-04 | 1994-02-25 | Iwata Eng:Kk | Holographic stereogram |
| JP2007114552A (en) * | 2005-10-21 | 2007-05-10 | Matsushita Electric Ind Co Ltd | Three-dimensional moving image reproducing device and method for reproducing three-dimensional moving image |
| CN101477326A (en) * | 2009-02-06 | 2009-07-08 | 苏州苏大维格光电科技股份有限公司 | Three-dimension graphics direct-writing method with multi-vision angle graphical input |
| CN102096091A (en) * | 2011-01-06 | 2011-06-15 | 西北核技术研究所 | Particle field optical holographic high-precision reproduction collecting system and method |
| CN104111257A (en) * | 2014-07-24 | 2014-10-22 | 江苏大学 | System and method for phase micro-interference imaging based on common-optical path system |
| KR20150000351A (en) * | 2013-06-24 | 2015-01-02 | 삼성전자주식회사 | OASLM based holographic display |
| CN104781724A (en) * | 2012-11-12 | 2015-07-15 | 浜松光子学株式会社 | Phase modulation method and phase modulating device |
| CN105676613A (en) * | 2016-03-29 | 2016-06-15 | 山东大学 | Digital holography ghost imaging system by adopting single-pixel or bucket detector and working method thereof |
| CN106054570A (en) * | 2016-04-26 | 2016-10-26 | 上海大学 | Method for realizing large-phase reconstruction of single digital hologram by adopting intensity transmission equation |
| CN106325032A (en) * | 2016-09-28 | 2017-01-11 | 中国石油大学(华东) | Digital holographic recording device with off-axis angle precisely adjustable in real time |
| CN207281477U (en) * | 2017-08-29 | 2018-04-27 | 西北核技术研究所 | A kind of Particle Field is holographic coaxially and off axis to reproduce light path system |
-
2017
- 2017-08-29 CN CN201710757551.6A patent/CN107688284B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0651686A (en) * | 1992-08-04 | 1994-02-25 | Iwata Eng:Kk | Holographic stereogram |
| JP2007114552A (en) * | 2005-10-21 | 2007-05-10 | Matsushita Electric Ind Co Ltd | Three-dimensional moving image reproducing device and method for reproducing three-dimensional moving image |
| CN101477326A (en) * | 2009-02-06 | 2009-07-08 | 苏州苏大维格光电科技股份有限公司 | Three-dimension graphics direct-writing method with multi-vision angle graphical input |
| CN102096091A (en) * | 2011-01-06 | 2011-06-15 | 西北核技术研究所 | Particle field optical holographic high-precision reproduction collecting system and method |
| CN104781724A (en) * | 2012-11-12 | 2015-07-15 | 浜松光子学株式会社 | Phase modulation method and phase modulating device |
| KR20150000351A (en) * | 2013-06-24 | 2015-01-02 | 삼성전자주식회사 | OASLM based holographic display |
| CN104111257A (en) * | 2014-07-24 | 2014-10-22 | 江苏大学 | System and method for phase micro-interference imaging based on common-optical path system |
| CN105676613A (en) * | 2016-03-29 | 2016-06-15 | 山东大学 | Digital holography ghost imaging system by adopting single-pixel or bucket detector and working method thereof |
| CN106054570A (en) * | 2016-04-26 | 2016-10-26 | 上海大学 | Method for realizing large-phase reconstruction of single digital hologram by adopting intensity transmission equation |
| CN106325032A (en) * | 2016-09-28 | 2017-01-11 | 中国石油大学(华东) | Digital holographic recording device with off-axis angle precisely adjustable in real time |
| CN207281477U (en) * | 2017-08-29 | 2018-04-27 | 西北核技术研究所 | A kind of Particle Field is holographic coaxially and off axis to reproduce light path system |
Non-Patent Citations (4)
| Title |
|---|
| A. DI DONATO 等: "Tomography of microfluidic channels by synthetic holography", 《2016 PROGRESS IN ELECTROMAGNETIC RESEARCH SYMPOSIUM (PIERS)》, pages 1 * |
| 丁航: "相移式反射数字全息显微术", 《中国优秀硕士学位论文全文数据库 (基础科学辑)》, no. 10, pages 005 - 123 * |
| 徐青 等: "Reconstruction algorithm of particle fields digital holographic diagnosis", 《JOURNAL OF APPLIED OPTICS》, vol. 31, no. 6, pages 969 - 973 * |
| 曹亮 等: "空气击穿效应对粒子全息像的影响", 《强激光与粒子束》, vol. 22, no. 12, pages 2999 - 3002 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110231036A (en) * | 2019-07-19 | 2019-09-13 | 广东博智林机器人有限公司 | A kind of robotic positioning device and method based on cross laser and machine vision |
| CN110231036B (en) * | 2019-07-19 | 2020-11-24 | 广东博智林机器人有限公司 | Robot positioning device and method based on cross laser and machine vision |
| CN114721162A (en) * | 2022-03-25 | 2022-07-08 | 华中科技大学 | Adjusting system for Tomo-PIV (Tomo-particle image velocimetry) volume optical path and calibration plate position correction method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107688284B (en) | 2024-03-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111175969B (en) | Optical tweezers system based on vortex pair light beam | |
| DE4135011C2 (en) | Optical disc apparatus | |
| KR20030027880A (en) | Improvements to acquisition and replay systems for direct-to-digital holography and holovision | |
| WO2011072175A2 (en) | Method and system for fast three-dimensional structured-illumination-microscopy imaging | |
| KR20160091380A (en) | Super-resolution microscopy imaging method and system for continuously adjustable structured light illumination | |
| JP2006113185A (en) | Laser processing apparatus | |
| CN109188669A (en) | Non-marked far field super-resolution microscopic system and method based on salt free ligands super-resolution beam lighting | |
| CN106325032B (en) | A kind of adjustable digital hologram recording device of off-axis angle real-time accurate | |
| CN107688284A (en) | A kind of Particle Field is holographic coaxially and off axis to reproduce light path system and method | |
| CN104930971A (en) | Partial compensation lens and detected surface alignment device and alignment method in non-null detection | |
| CN108169888B (en) | Digital microscopic imaging system and method | |
| CN102402172B (en) | Three-dimensional real time super-resolution digital holography recording system | |
| CN114460731A (en) | Multicolor structured light illumination super-resolution microscopic imaging method and device based on DMD | |
| CN111221122B (en) | Design method of super-resolution telescopic imaging system with larger field intensity tolerance | |
| CN207281477U (en) | A kind of Particle Field is holographic coaxially and off axis to reproduce light path system | |
| WO2023070871A1 (en) | Method and device for moving target in optical axis direction of camera | |
| CN111735535A (en) | Three-dimensional focusing array real-time dynamic precise regulation and control device and method | |
| CN116678583B (en) | Schlieren system based on phase modulation and adjusting method thereof | |
| CN102122513B (en) | Coaxial recording device for digital hologram of transparent substance based on beam-splitting property of Fresnel biprism | |
| CN111856772A (en) | Five-dimensional adjusting method and device for spatial filter end lens | |
| CN114353694B (en) | Device and method for detecting low-frequency-band aberration in optical free-form surface | |
| CN112114436B (en) | Method for assembling and adjusting long-focal-depth laser cutting head | |
| CN112033647B (en) | Multi-aperture system pupil detection and correction method | |
| CN108802994B (en) | Image recording system and method | |
| CN101770077B (en) | Beam splitting method and beam splitting system of angular multiplexing reference light pulse |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |