CN86203799U - Portable laser dynamic hologram-speckle camera - Google Patents
Portable laser dynamic hologram-speckle camera Download PDFInfo
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- CN86203799U CN86203799U CN 86203799 CN86203799U CN86203799U CN 86203799 U CN86203799 U CN 86203799U CN 86203799 CN86203799 CN 86203799 CN 86203799 U CN86203799 U CN 86203799U CN 86203799 U CN86203799 U CN 86203799U
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Abstract
The utility model relates to a portable laser dynamic hologram-speckle camera device. The utility model is characterized in that a composite structure is adopted, the device can horizontally rotate from 0 DEG to 360 DEG, and the pitching is from 0 DEG to 45 DEG in the vertical direction. Order pulses, the number and the space of which can be adjusted, are output, the composite structure is provided with a multifunctional optical system and a power supply system with a microprocessor, and the utility model can carry out dynamic holography, dynamic image holography, dynamic speckle interference photography and dynamic dislocation speckle interference photography, and can carry out self-timing holography.
Description
The utility model belongs to laser hologram---the speckle technical applications.
Holographic device in the prior art roughly can divide large scale computer, minicomputer two big classes.Large scale computer: as Japanese holographic device (clear 58-184985) and american apollo company holographic device, its shortcoming is:
1. laser instrument single mode probability is low;
2. volume is big, Heavy Weight;
3. can not be in bright chamber or the working site take a picture, only have single photograph light path, thereby a practical application difficulty;
4. cost height.
Minicomputer: as domestic existing monopulse, dipulse holographic device, though volume is little, weight saving, its fatal shortcoming is:
1. the single longitudinal mode probability is low, and energy output is little;
2. function singleness can't satisfy the needs of practical application.
For overcoming above shortcoming, the objective of the invention is to adopt fabricated structure and multifunctional comprehensive light path system, under the situation that volume and weight reduces, the output energy is improved, and reach multi-functional by simple function.Describe the present invention in detail below in conjunction with accompanying drawing:
Fig. 1: general structure synoptic diagram
Fig. 2: ruby laser light path synoptic diagram
Fig. 3: laser optical bench front view
Fig. 4: laser optical bench side view
Fig. 5: outer light path optical adjusting frame front view
Fig. 6: outer light path optical adjusting frame side view
Fig. 7: power-supply system block scheme
Fig. 8: timer circuit connects synoptic diagram
Fig. 9: dynamic holography index path
Figure 10: dynamically resemble the holograph index path
Figure 11: dynamic speckle photograph index path
Figure 12: dynamic shearing speckle photograph index path
Referring to Fig. 1: laser instrument 1, outside optical system 2, camera 3, adopt fabricated structure, combination is fixed on the body 4, body 4 is made up of up and down two flat boards with intermediate support, and lower dull and stereotyped four jiaos are equipped with the adjustment screw, in order to regulate its horizontal level, body 4 is installed on the A-frame 5 with roller seat, can rotate in the horizontal direction 0～360 °, vertical direction pitching 0～± 45 °, whole device is can be on the ground arbitrarily mobile or fixing and by power-supply system 6 controls.
The coherence of ruby laser, between output energy, the pulse width three is conflicting, improves coherence (being time coherence and spatial coherence), needs laser instrument is carried out modeling, modeling just has energy loss, for solving these contradiction, adopt the way that increases one-level or secondary ruby laser amplifier both at home and abroad mostly, cause device to increase, volume strengthens, weight increases, and energy consumption strengthens, and makes to be used for the scene.The present invention has adopted resonant reflector, and the measure of inclination etalon, saturable absorption dyestuff, electronics modeling method associating longitudinal mode selection has improved the single mode probability, and energy output is improved.Cooperate power-supply system 6, make that laser instrument can export that pulse number is adjustable, the dipulse of adjustable pulse interval, train pulse.Referring to Fig. 2: the light path of the ruby laser in this invention is: be made up of total reflective mirror 7, Pockers cell 8, inclination etalon 9, ruby rod 10, saturable absorption dyestuff 11, resonant reflector 12.Referring to Fig. 3, Fig. 4: laser optical bench, adopt the ball architecture, a spherical bushing 14 is housed in the optical bench, stud with two on its lining cylindrical and adjust pieces 15, be in 90 °, with 13 adjustment of two screws, so that lining 14 is swung along axis.The guide groove slide block is equipped with in the optical bench bottom, can move on the guide rail of laser instrument central dividing plate and adjust.Precision was high and stablize when this optical bench was adjusted.
Outside optical system is comprehensive multi-functional optical system, and several optical adjusting frames of unifying size and structure are wherein arranged, by mutual usefulness, choice, the conversion to optical mirror slip on the adjustment rack, form the corresponding dynamic holograph, dynamically resemble holograph, speckle pattern photography, shearing speckle photograph light path.Referring to Fig. 5, Fig. 6: optical adjusting frame is a rectangular configuration, has square groove on the movable block 16 wherein, makes optical mirror slip 18 houses get, replace rapid convenience.One side of movable block 16 and adjustment rack main body 17 has breach, and when making it as the transmission optics support, light unhinderedly sees through, and is irrelevant therewith again during as catoptrics part support.
Fig. 9: be dynamic holography light path synoptic diagram: the pulse laser of ruby laser 1 emission, turn to through total reflective mirror 33, penetrate on beam splitter 34, light is divided into two bundles, and a branch of transmitted light is a thing light, through catoptron 40 and beam expanding lens 41 illuminated objects 42, another bundle reflected light is a reference light, regulate mirror 35,36 accommodation reflex number of times through aplanatism, when making reference light and thing light arrive holofilm, equivalent optical path.Shine on the holofilm 39 to reference light beam expanding lens 38 through catoptron 37, thing light is reflected on the egative film and the reference light interference through object.
If the eyeglass of the reference light beam expanding lens 38 among Fig. 9 is cast out, be transformed into total reflective mirror 43, total reflective mirror 44 is reinstalled in the optical adjusting frame groove, make total reflective mirror 44 and light incident normal angle at 45 approximately on the adjustment rack, reinstall imaging mirror 47.Its photograph light path has just been changed over by the dynamic holography light path and has dynamically resembled the holograph light path.It is Figure 10: dynamically resemble holograph light path synoptic diagram: the pulse laser of ruby laser 1 emission, turn to through catoptron 33 and to penetrate on beam splitter 34, light is divided into two bundles, a branch of transmitted light, be thing light, through catoptron 40, beam expanding lens 41, on the irradiating object 42, another bundle reflected light is a reference light, regulate mirror 35,36 through aplanatism, catoptron 37,43,44 shines on the photographic film 39 to reference light beam expanding lens 45, and thing light is reflected on the egative film 39 and the reference light interference through object.
If the beam splitting eyeglass 34 in the optical adjusting frame among Fig. 9 is cast out, add imaging mirror 47 light paths and just become the speckle pattern photography light path by the dynamic holography light chopper, its light path is seen shown in Figure 11: the pulse laser that ruby laser 1 is launched turns to through total reflective mirror 33,40, disperse by beam expanding lens 41, irradiating object 42, object 42 front spaces form many speckles, and imaging mirror 47 is these speckles resembling on photographic film 39 and go on record together with object 42.
The mirror of the imaging mirror 47 among Figure 11 cover front end face dislocation wedge eyeglass 48 of packing into, promptly become shearing speckle photograph light path by the speckle pattern photography light chopper, its light path is seen shown in Figure 10: the pulse laser that ruby laser 1 is launched is through total reflective mirror 33,40 turn to, disperse by beam expanding lens 41, on the irradiating object 42, object 42 front spaces form many speckles, through wedge 48 Lower Halves, through imaging mirror 47, many speckles are resembled on photographic film 39 together with object 42, the first half is the dislocation that resembles because of refraction resembling on egative film become with Lower Half then, and its magnitude of misalignment can be by formula
=Lo(n-1) A calculates, and wherein A is the angle of wedge, and Lo is the distance of object to wedge, n is the glass refraction of wedge, object is carried out double-exposure, occur four speckle fields on the egative film, thereby obtain parameters such as two relevant displacement difference, displacement gradient, displacement density difference.Make the dynamic holography light chopper become dynamically loose photograph light path, i.e. Figure 12.
Referring to Fig. 7: the power-supply system block scheme, keyboard among the figure (19) input instruction is given microprocessor (20), the program of microprocessor (20) execute store (21), send command signal simultaneously and send into three paths respectively, first path is sent into display (22) video data; Alternate path is sent into timer (23) preset time sequence, pulse number and startup timing, provide trigger pip behind the timer initiation, through trigger (24) deionization xenon lamp (31), another road of timer (23) provides Q signal, send into Q-switch circuit (25), remove to promote Pockers cell (27) and produce multi-pulse laser output; The 3rd path is sent into input and output interfaces device (28), promote charging circuit (29), give energy-storage capacitor (30) charging, energy-storage capacitor (30) connects xenon lamp (31), when alternate path is worked, converter (32) constantly extracts the charging voltage signal in the charging circuit (29), sends into microprocessor.
Fig. 8 is the timer circuit interface chart: timer is made up of three timing/count slice CTC among the figure, and each CTC can produce a predetermined delay time, and three CTC series connection is used, three delay times that can the generation order, and its signal is T
1, T
2, T
3, adopt counting mode work, 65792 numerals of each CTC Timing.
Each CTC adopts three passages, promptly 0 ', 1 ', 2 ', each passage is pulse counting down externally, wherein 0 ' and 1 ' passage series connection, 2 ' passage 0 ' and 1 ' channel counts beginning down synchronously after finishing count, tale is to be undertaken by the form of a * b+c.Be two timer work embodiment below:
Embodiment one: the use of monolithic CTC, each channel presetting 0～256 number, the counting working method is set, passage input port pulse signal of every input presets number and subtracts one, when reducing to zero, delivery outlet produces zero pulse, presets original number simultaneously again automatically, continuation subtracts one repetitive operation under signal, three passage tales are pressed the form of a * b+c.Be 50000 as tale and be divided into 255 * 19+155, such 0 ' passage is sent into 255 numbers, and 1 ' passage is sent into 19 numbers, and 2 ' passage is sent into 155 numbers, connects the purpose that just can reach sum 50000 as the mode of Fig. 6.The CTC counting is 65792 to the maximum.
Embodiment two: needs three timing times, connects three CTC,
If T
1=3000, T
2=800, T
3=200.
Be divided into by a * b+c: 3000 are divided into 255 * 11+195
800 are divided into 255 * 3+35
200 are divided into 1 * 1+200
This three number respectively preliminary election send into CTC-1, CTC-2, three passages of CTC-3.
In 3000 numbers: 255 send into 0 ' passage, and 11 send into 1 ' passage, and 195 send into 2 ' passage.
In 800 numbers: 255 send into 0 ' passage, and 3 send into 1 ' passage, and 35 send into 2 ' passage.
In 200 numbers: 1 sends into 0 ' passage, and 1 sends into 1 ' passage, and 200 send into 2 ' passage.
In sum, the present invention except have simple in structure, volume is little, in light weight, cost is low, can also be in bright chamber, darkroom, working site carry out outside the various shootings, and can carry out reproduction to the hologram of having taken, another advantage is that energy of lasers output is higher, and energy output laser pulse number is adjustable, the train pulse that the pulse spacing is adjustable, when this laser instrument is made the light source of high-speed photography, can take the continuous process such as fly bomb, blast, shock wave. It is to have adopted the power-supply system of microprocessor and be equipped with comprehensive multi-functional in small and exquisite fabricated structure that the present invention also has a great advantage Optical system by mutual usefulness or choice, can carry out dynamic holography, dynamically resemble holographic, and dynamical speckle interferometry is taken a picture, and dynamically Shearography is taken a picture and other form photograph, can also carry out the self-timing holographic, also can be used for the transmission-type holography.
Claims (5)
1, portable laser dynamic holographic-speckle pattern photography device is made up of laser instrument, outside optical system, photograph mechanism, body, tripod, power-supply system, it is characterized in that:
1. laser instrument 1, outside optical system 2, photograph mechanism 3, combination are fixed on the body 4, and body 4 is installed on the A-frame 5 that has roller seat, and whole assembly is by power-supply system 6 controls.
2. ruby laser is total reflective mirror 7, Pockers cell 8, inclination etalon 9, ruby rod 10, can satisfies and close absorbing dye 11, resonant reflector 12 compositions, and laser optical bench adopts the ball architecture.
3. outer light path is a comprehensive optical system, has several to unify the optical adjusting frame of size and square type structure, wherein has square groove on the movable block 16, and a movable block 16 and a side of adjusting support body 17 have a breach simultaneously.
4. power-supply system 6, are made up of keyboard (19), microprocessor (20), storer (21), display (22), timer (23), trigger (24), Q-switch circuit (25), high-voltage power supply (26), Pockers cell (27), IO interface device (28), charging circuit (29), energy-storage capacitor (30), xenon lamp (31), analogue-to-digital converters (32).
2, according to the said dynamic Laser holography of claim 1---speckle pattern photography device, it is characterized in that: described laser optical bench, adopt the ball architecture, a spherical bushing 14 is housed in the optical bench, stud with two on its lining cylindrical and adjust piece 15, be in 90 °, adjust with two screws 13, can make lining 14, to adjust pitching and to horizontally rotate along the axis swing, the guide groove slide block is equipped with in the optical bench bottom, can move on the guide rail of laser instrument central dividing plate.
3, according to the said dynamic Laser holography of claim 1---the speckle pattern photography device is characterized in that: described body 4 is by two dull and stereotyped compositions the up and down that have supporting.On following dull and stereotyped four angles the adjustment screw is housed, in order to regulate the horizontal level of body.
4, according to the said dynamic Laser holography of claim 1---the speckle pattern photography device is characterized in that: described timer (23) is by three timing/count slice CTC-1, CTC-2, and CTC-3 forms, and three CTC sheets adopt the series connection form.
5, according to the said dynamic Laser holography of claim 4---speckle pattern photography device, it is characterized in that: described CTC timing/count slice, every adopt three passages promptly 0 ', 1 ', 2 ', wherein 0 ' and 1 ' passage series connection, 2 ' passage 0 ' and 1 ' channel counts beginning down synchronously after finishing count.Tale is undertaken by the form of a * b+c.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86203799 CN86203799U (en) | 1986-06-11 | 1986-06-11 | Portable laser dynamic hologram-speckle camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86203799 CN86203799U (en) | 1986-06-11 | 1986-06-11 | Portable laser dynamic hologram-speckle camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN86203799U true CN86203799U (en) | 1987-10-03 |
Family
ID=4807014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86203799 Ceased CN86203799U (en) | 1986-06-11 | 1986-06-11 | Portable laser dynamic hologram-speckle camera |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN86203799U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090250A (en) * | 2012-10-31 | 2013-05-08 | 吴江市宏达探伤器材有限公司 | Detection illuminating lamp |
| CN104079868A (en) * | 2013-03-29 | 2014-10-01 | 中原工学院 | Laser-assisted distance measuring device and method for single-sight-point video monitoring |
| CN108601983A (en) * | 2016-01-26 | 2018-09-28 | 斯达德保尔市场营销有限公司 | Circuit arrangement for model racing car track |
| CN109238553A (en) * | 2018-10-18 | 2019-01-18 | 中国科学院力学研究所 | A kind of pressure distribution measurement method for column shock wave in water |
-
1986
- 1986-06-11 CN CN 86203799 patent/CN86203799U/en not_active Ceased
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090250A (en) * | 2012-10-31 | 2013-05-08 | 吴江市宏达探伤器材有限公司 | Detection illuminating lamp |
| CN104079868A (en) * | 2013-03-29 | 2014-10-01 | 中原工学院 | Laser-assisted distance measuring device and method for single-sight-point video monitoring |
| CN104079868B (en) * | 2013-03-29 | 2017-06-30 | 中原工学院 | The laser assisted range unit and method of a kind of single-view video monitoring |
| CN108601983A (en) * | 2016-01-26 | 2018-09-28 | 斯达德保尔市场营销有限公司 | Circuit arrangement for model racing car track |
| CN108601983B (en) * | 2016-01-26 | 2021-01-05 | 斯达德保尔市场营销有限公司 | Circuit arrangement for model racing car track |
| CN109238553A (en) * | 2018-10-18 | 2019-01-18 | 中国科学院力学研究所 | A kind of pressure distribution measurement method for column shock wave in water |
| CN109238553B (en) * | 2018-10-18 | 2020-01-21 | 中国科学院力学研究所 | Pressure distribution measuring method for columnar shock waves in water |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CE01 | Termination of patent right |
Termination date: 19880413 |
|
| CE01 | Termination of patent right |