CN109578759A - A kind of aspheric lens of passive vibration damping pushes away sweeping and sweeps type aerial camera - Google Patents
A kind of aspheric lens of passive vibration damping pushes away sweeping and sweeps type aerial camera Download PDFInfo
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- CN109578759A CN109578759A CN201910070565.XA CN201910070565A CN109578759A CN 109578759 A CN109578759 A CN 109578759A CN 201910070565 A CN201910070565 A CN 201910070565A CN 109578759 A CN109578759 A CN 109578759A
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- 238000013016 damping Methods 0.000 title claims abstract description 15
- 238000010408 sweeping Methods 0.000 title claims abstract description 10
- 238000002955 isolation Methods 0.000 claims abstract description 49
- 230000003287 optical effect Effects 0.000 claims abstract description 10
- 230000004075 alteration Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 238000012937 correction Methods 0.000 abstract description 5
- 239000011521 glass Substances 0.000 abstract description 3
- 230000002411 adverse Effects 0.000 abstract description 2
- 230000010355 oscillation Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 241001416181 Axis axis Species 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 3
- 238000011835 investigation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 238000013139 quantization Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/043—Allowing translations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/073—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only leaf springs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
- F16M11/12—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction
- F16M11/121—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction constituted of several dependent joints
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
- F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
- G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
Abstract
Sweeping is pushed away the present invention relates to a kind of aspheric lens of passive vibration damping and sweeps type aerial camera, belongs to aviation O-E Payload and vibration damping field.Image-forming module is fixed on course axis frame two, it is driven to rotate by course axis precision bearing system, mirror center passes through optical axis, it is at 45 ° with image planes, it is rotated by the driving of pitch axis precision bearing system, pitch axis precision bearing system, the close shafting of course axis are integrally fixed on roll frame one respectively, and drive it to do roll motion by roll axis precision bearing system.The present invention is directed to primary oscillation source: driving motor and carrier aircraft, carries out vibration isolation using vibration isolation gasket, reduces the image quality adverse effect vibrated to aerial camera, substantially increase the working performance of the present apparatus；The present invention uses aspherical mirror compared to similar, eliminates spherical aberration and credit light, and correction curvature of the image, the ability for distorting aberration are more preferable；The rectification effect of aspherical mirror is equal to more pieces of spherical mirrors simultaneously, reduces spheric glass number, can achieve light-weighted purpose.
Description
Technical field
The present invention relates to aviation O-E Payload and vibration damping fields, refer in particular to a kind of aspherical mirror that can carry out passive vibration damping
Head push away sweep, sweeping type aerial camera.
Background technique
Aerial camera is that the high-accuracy optical pickup instrument of one kind can be completed to collect various usually using aircraft as carrier
Information is simultaneously expressed in the form of high definition photograph, then obtains visual data result after handling through computer.Message context is being collected,
Aerial camera not only has that accuracy is high, timeliness is good, purpose is strong, the speed of acquisition information is fastly with convenient advantage, may be used also
To ignore earth's surface investigation because the Curvature Effect and barrier of the earth are to the deficiency blocked of target, substantially reduced in military affairs investigation
Danger；And camera space is also made up for the deficiency in specific image detail and timeliness.Aerial camera is detectd in geology military affairs
It looks into, resources observation, disaster alarm, agricultural investigation, the various fields such as urban planning play an important role.
Since aerial camera working environment is complicated, the factors such as distortion of camera lens itself and running geometry, power, heat,
The factors such as vibration can all impact image quality.And with the growth of aerial camera focal length, the imaging point of optical system
Resolution is higher and higher, and in comparison, vibration has become the principal element for influencing aerial camera image quality.How to reduce or keeps away
Exempt from the influence of the factors such as vibration, improving image quality becomes the main bugbear of aerial camera field development.
Existing aerial camera adds cloud on the basis of aerial camera mostly using Active Compensation Image motion errors
Platform, such as Chinese patent CN201730323961, although can play the role of certain image shift compensation, single compensation system is difficult
Factors, the image quality such as effective isolation vibration are still affected, while holder will increase unnecessary weight, do not meet light
The principle of quantization.Furthermore with increasingly progressing greatly for processing technology, aspherical lens step into the visual field.Aspherical mirror can be used to eliminate
Spherical aberration and credit light, as far as possible correction curvature of the image distort aberration；And the correction ability of one piece of aspherical mirror is equal to more pieces of spherical mirrors
Piece, therefore can achieve lightweight using aspherical lens in camera lens.
Summary of the invention
The present invention proposes that a kind of aspheric lens of passive vibration damping pushes away sweeping and sweeps type aerial camera, with because solve vibration etc. because
Element greatly improves camera imaging quality and meets the light-weighted principle of aeronautical product to the interference problem of imaging, to meet to winged
The application demand of row device to become increasingly complex.
The technical solution adopted by the present invention is that: including image-forming module, roll axis precision bearing system, pitch axis precision bearing system and
The close shafting of course axis, wherein image-forming module is fixed on course axis frame two, drives it to rotate by course axis precision bearing system, instead
It penetrates mirror center and passes through optical axis, it is at 45 ° with image planes, it is rotated by the driving of pitch axis precision bearing system, pitch axis precision bearing system, course axis
Close shafting is integrally fixed on roll frame one respectively, and drives it to do roll motion by roll axis precision bearing system.
The image-forming module includes aspheric lens group, lens barrel, support, washer, seam allowance, ccd sensor, wherein aspherical
Lens group is installed on lens barrel groove, and lens barrel is fixed on support by screw, and ccd sensor is connect by screw thread with seam allowance, only
Mouth and support are fixed by screw, washer are wherein arranged between seam allowance and support, support, which is bolted, is anchored on orientation frame
Frame.
The roll axis precision bearing system includes torque motor one, motor connecting base one, motor shaft one, vibration isolation gasket one, depth
Ditch ball bearing one, U-shaped frame one, photoelectric encoder one, encoder axis one, encoder attachment base one, pairs of angular contact ball bearing one,
Roll frame one, vibration isolation gasket four, wherein torque motor one is fixed on U-shaped frame one, torque motor one by motor connecting base one
It is connected between motor connecting base one, between motor connecting base one and U-shaped frame one using screw, torque motor one and motor shaft one
Between be arranged vibration isolation gasket one, connected firmly by screw, between U-shaped frame one and motor shaft one select deep groove ball bearing one support, light
Photoelectric coder one is fixed on U-shaped frame one by encoder attachment base one, between encoder one and encoder axis one, encoder connection
It is connected between seat one and U-shaped frame one using screw, photoelectric encoder one is connected firmly by screw with encoder axis one, U-shaped one He of frame
It selects pairs of angular contact ball bearing one to support between encoder axis one, guarantees encoder axis one and one concentricity of motor shaft, U-shaped frame
Bottom is installed by vibration isolation gasket four.
The pitch axis precision bearing system includes torque motor three, motor connecting base three, motor shaft three, vibration isolation gasket three, depth
Ditch ball bearing three, motor cabinet, photoelectric encoder three, encoder attachment base three, pairs of angular contact ball bearing three, encoder axis three,
Encoder seat, reflecting mirror, reflecting mirror tabletting and mirror unit, wherein torque motor three is fixed on motor by motor connecting base three
Seat, is connected firmly between torque motor three and motor connecting base three, between motor connecting base three and motor cabinet using screw, torque motor
Vibration isolation gasket three is placed between three and motor shaft three, is fastened by screw, and deep groove ball bearing three is used between motor cabinet and motor three
Support, photoelectric encoder three are fixed on encoder seat, photoelectric encoder three and encoder attachment base by encoder attachment base three
It is all connected using screw between three, between encoder attachment base three and encoder seat, is used between encoder seat and encoder axis three
Pairs of angular contact ball bearing three supports, and reflecting mirror is placed in mirror unit, and is fixed by four reflecting mirror tablettings and screw,
Encoder axis three and motor shaft three are coaxial, and motor cabinet and encoder seat are connected with and are anchored on roll frame.
The course axis precision bearing system includes: torque motor two, motor connecting base two, motor shaft two, vibration isolation gasket two, depth
Ditch ball bearing two, U-shaped frame two, photoelectric encoder two, encoder axis two, encoder attachment base two, pairs of angular contact ball bearing two,
Roll frame two, structure roll axis precision bearing system is identical, and U-shaped frame two, which is bolted, is anchored on roll frame one.
Compared with the prior art, the invention has the advantages that:
Torque motor three, the course axis of the torque motor one of roll axis axis precision bearing system of the present invention, pitch axis precision bearing system
The torque motor two and carrier aircraft of precision bearing system constitute the closed loop vibration source of whole device, respectively in torque motor one, torque electricity
Between machine three, torque motor two and its corresponding motor axis one, motor shaft three, motor shaft two and roll axis axis precision bearing system it is U-shaped
Between frame one and carrier aircraft, altogether everywhere, setting vibration isolation gasket one, vibration isolation gasket three, vibration isolation gasket two and vibration isolation gasket four, by every
Entire closed loop vibration source is isolated with image-forming module for vibration gasket one, vibration isolation gasket three, vibration isolation gasket two and vibration isolation gasket four, makes to shake
The dynamic influence to whole device substantially reduces, to improve image quality.
Deep groove ball bearing one of the present invention, deep groove ball bearing two are fixed using inner ring, and the fixed form of outer ring travelling improves
System stiffness reduces deformation, while ensure that the stability of the shafting precision in temperature change.
To sum up, the present invention improves Anti-vibration Design compared to similar inventions, for the primary oscillation source of device: driving motor
And carrier aircraft, vibration isolation is carried out using vibration isolation gasket, the image quality adverse effect vibrated to aerial camera is reduced, substantially increases
The working performance of the present apparatus；The present invention uses aspherical mirror compared to similar, eliminates spherical aberration and light of shining, correction curvature of the image,
The ability for distorting aberration is more preferable；The rectification effect of aspherical mirror is equal to more pieces of spherical mirrors simultaneously, reduces spheric glass number,
It can achieve light-weighted purpose.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the structural schematic diagram of image-forming module of the present invention；
Fig. 3 is the structural schematic diagram of roll axis precision bearing system of the present invention；
Fig. 4 is the portion the I enlarged drawing of Fig. 3；
Fig. 5 is the structural schematic diagram of pitch axis precision bearing system of the present invention；
Fig. 6 is the structural schematic diagram of axis precision bearing system in course of the present invention.
Specific embodiment
As shown in Figure 1, including that image-forming module 1, roll axis precision bearing system 2, pitch axis precision bearing system 3 and course axis are close
Shafting 4, wherein image-forming module 1 is fixed on course axis frame 2 411, drives it to rotate by course axis precision bearing system 4, reflecting mirror
312 centers pass through optical axis, at 45 ° with image planes, can be rotated by the driving of pitch axis precision bearing system 3, pitch axis precision bearing system 3, boat
It is fixed on roll frame 1 to the close shafting 4 of axis is whole respectively, and drives it to do roll motion by roll axis precision bearing system 2.
As shown in Fig. 2, the image-forming module 1 includes aspheric lens group 101, lens barrel 102, support 103, washer 104, stops
Mouth 105, ccd sensor 106, wherein aspheric lens group 101 is installed on 102 groove of lens barrel, and lens barrel 102 is fixed by screw
In support 103, ccd sensor 106 is connect by screw thread with seam allowance 105, and seam allowance 105 and support 103 are fixed by screw, wherein
Washer 104 is set between seam allowance 105 and support 103, carries out focal length fine tuning by adjusting screw, support 103 is bolted
It is anchored on orientation frame 411, it is desirable that optical axis passes through 101 center of aspheric lens group, and light prolongs optical axis through camera lens and reaches simultaneously CCD biography
The image planes of sensor 106, ccd sensor 106 convert optical signals into analog current signal, and current signal is by amplification and modulus
Conversion, realizes acquisition, storage, transmission, processing and the reproduction of image.
As shown in Figure 3,4, the roll axis precision bearing system 2 is used to that camera to be driven to make rotating motion around roll axis, including power
Torque motor 1, motor connecting base 1, motor shaft 1, vibration isolation gasket 1, deep groove ball bearing 1, U-shaped frame one
206, photoelectric encoder 1, encoder axis 1, encoder attachment base 1, pairs of angular contact ball bearing 1, cross
Frame 1, vibration isolation gasket 4 212 are rolled, selects torque motor 201 to be used as servo-drive component in roll axis precision bearing system 2, uses
It is rotated in driving roll frame 211, using separately-loaded connection type, torque motor 1 is fixed by motor connecting base 1
In U-shaped frame 1, between torque motor 1 and motor connecting base 1, motor connecting base 1 and U-shaped frame 1 it
Between using screw connect, between torque motor 201 1 and motor shaft 1 be arranged vibration isolation gasket 1, connected firmly by screw, U
Deep groove ball bearing 1 is selected to support between type frame 1 and motor shaft 1, photoelectric encoder 1 is connected by encoder
Joint chair 1 is fixed on U-shaped frame 1, between encoder 1 and encoder axis 1, encoder attachment base 1 and U
It is connected between type frame one using screw, photoelectric encoder 1 is connected firmly by screw with encoder axis 1, U-shaped frame 1
It selects pairs of angular contact ball bearing 1 to support between encoder axis 1, guarantees encoder axis 1 and motor shaft one
Vibration isolation gasket 4 212 is installed in 203 concentricities, U-shaped 206 bottom of frame, and U-shaped frame 1 is fixed by bolts in carrier aircraft,
As shown in figure 5, pitch axis precision bearing system 3 is used to that reflecting mirror 312 to be driven to make rotating motion around pitch axis, including torque
Motor 3 301, motor connecting base 3 302, motor shaft 3 303, vibration isolation gasket 3 304, deep groove ball bearing 3 305, motor cabinet
306, photoelectric encoder 3 307, encoder attachment base 3 308, pairs of angular contact ball bearing 3 309, encoder axis 3 310, volume
Code device seat 311, reflecting mirror 312, reflecting mirror tabletting 313 and mirror unit 314 select torque motor in pitch axis precision bearing system 3
3 301 are used as servo-drive component, and using separately-loaded connection type, torque motor 3 301 is fixed by motor connecting base 3 302
Between motor cabinet 306, torque motor 3 301 and motor connecting base 3 302, between motor connecting base 3 302 and motor cabinet 306
It is connected firmly using screw, vibration isolation gasket 3 304 is placed between torque motor 3 301 and motor shaft 3 303, is fastened by screw, electricity
It is supported between base 306 and motor 3 303 with deep groove ball bearing 3 305, photoelectric encoder 3 307 passes through encoder attachment base three
308 are fixed on encoder seat 311, between photoelectric encoder 3 307 and encoder attachment base 3 308, encoder attachment base 3 308
It is all connected using screw between encoder seat 311, with pairs of angular contact ball between encoder seat 311 and encoder axis 3 310
Bearing 3 309 supports, and reflecting mirror 312 is placed in mirror unit 314, and is fixed by four reflecting mirror tablettings 313 and screw,
Guarantee the concentricity of encoder axis 3 310 and motor shaft 3 303, motor cabinet 306 and encoder seat 311 are connected with and are anchored on
On roll frame 211.
As shown in fig. 6, course axis precision bearing system 4 is for driving image-forming module 1 to make rotating motion around course axis, comprising: power
Torque motor 2 401, motor connecting base 2 402, motor shaft 2 403, vibration isolation gasket 2 404, deep groove ball bearing 2 405, U-shaped frame two
406, photoelectric encoder 2 407, encoder axis 2 408, encoder attachment base 2 209, pairs of angular contact ball bearing 2 410, cross
Frame 2 411 is rolled, structure roll axis precision bearing system 1 is identical, and this will not be repeated here, wherein U-shaped frame 2 406 is bolted
It is anchored on roll frame 1.
It further illustrates, the torque motor of the torque motor 1 of roll axis axis precision bearing system 2, pitch axis precision bearing system 3
3 301, the torque motor 2 401 of course axis precision bearing system 4 and carrier aircraft constitute the closed loop vibration source of whole device, respectively in power
Torque motor 1, torque motor 3 301, torque motor 2 401 and its corresponding motor axis 1, motor shaft 3 303, motor shaft
Between 2 403 and between the U-shaped frame 206 and carrier aircraft of roll axis axis precision bearing system 1, altogether everywhere, setting vibration isolation gasket 1, every
Shake gasket 3 304, vibration isolation gasket 2 404 and vibration isolation gasket 4 212, is all made of damping alloy, this kind of alloy vibration and noise reducing
Can be excellent, wide using temperature frequency range, the more traditional rubber vibration isolation gasket of mechanical performance is good.By vibration isolation gasket 1, every
Entire closed loop vibration source is isolated with image-forming module 1 for vibration gasket 3 304, vibration isolation gasket 2 404 and vibration isolation gasket 4 212, makes to shake
The dynamic influence to whole device substantially reduces, to improve image quality.
It further illustrates, deep groove ball bearing 1, deep groove ball bearing 2 405 are fixed using inner ring, the fixation of outer ring travelling
Mode improves system stiffness, reduces deformation, while ensure that the stability of the shafting precision in temperature change.
The working principle of the invention and process are described further below:
In practical flight shooting process, the U-shaped frame 1 of roll axis is fixed in carrier aircraft with screw, roll axis is accurate
Shafting 2 and the rotation of pitch axis precision bearing system 3 to proper angle are shot, and light is by reflecting mirror 312, by aspherics
Lens group 101 reaches the image planes of ccd sensor 106, and 1 optical signal conversion of ccd sensor is analog current signal, current signal
By amplification and analog-to-digital conversion, acquisition, storage, transmission, processing and the reproduction of image are realized；
It is influenced for vibration, passes through vibration isolation gasket 1, vibration isolation gasket 3 304, vibration isolation gasket 2 404 and vibration isolation gasket
4 212, entire closed loop vibration source is isolated with image-forming module 1, makes to vibrate the influence of whole device is substantially reduced, vibration isolation gasket
One 204, vibration isolation gasket 3 304, vibration isolation gasket 2 404 and vibration isolation gasket 4 212 are all made of damping alloy, this kind of alloy vibration damping
Anti-acoustic capability is excellent, wide using temperature frequency range, and the more traditional rubber vibration isolation gasket of mechanical performance is good；
The present apparatus uses aspheric lens group, eliminates spherical aberration and credit light, and correction curvature of the image, the ability for distorting aberration are good,
Improve image quality；The rectification effect of aspherical mirror is equal to more pieces of spherical mirrors simultaneously, reduces spheric glass number, reaches
Light-weighted purpose.
Claims (5)
1. a kind of aspheric lens of passive vibration damping pushes away sweeping and sweeps type aerial camera, it is characterised in that: including image-forming module, roll
Axis precision bearing system, pitch axis precision bearing system and the close shafting of course axis, wherein image-forming module is fixed on course axis frame two, by
Course axis precision bearing system drives it to rotate, and mirror center passes through optical axis, at 45 ° with image planes, is driven by pitch axis precision bearing system
Dynamic to rotate, pitch axis precision bearing system, the close shafting of course axis are integrally fixed on roll frame one respectively, and accurate by roll axis
Shafting drives it to do roll motion.
2. a kind of aspheric lens of passive vibration damping according to claim 1 pushes away sweeping and sweeps type aerial camera, feature exists
In: the image-forming module include aspheric lens group, lens barrel, support, washer, seam allowance, ccd sensor, wherein aspheric lens
Group is installed on lens barrel groove, and lens barrel is fixed on support by screw, and ccd sensor is connect by screw thread with seam allowance, seam allowance with
Support is fixed by screw, and washer is wherein arranged between seam allowance and support, and support, which is bolted, is anchored on orientation frame.
3. a kind of aspheric lens of passive vibration damping according to claim 1 pushes away sweeping and sweeps type aerial camera, feature exists
In: the roll axis precision bearing system includes torque motor one, motor connecting base one, motor shaft one, vibration isolation gasket one, deep-groove ball axis
Hold one, U-shaped frame one, photoelectric encoder one, encoder axis one, encoder attachment base one, pairs of angular contact ball bearing one, roll frame
Frame one, vibration isolation gasket four, wherein torque motor one is fixed on U-shaped frame one, torque motor one and motor by motor connecting base one
It connects between attachment base one, between motor connecting base one and U-shaped frame one using screw, is set between torque motor one and motor shaft one
Vibration isolation gasket one is set, is connected firmly by screw, selects deep groove ball bearing one to support between U-shaped frame one and motor shaft one, photoelectric coding
Device one is fixed on U-shaped frame one by encoder attachment base one, between encoder one and encoder axis one, one and of encoder attachment base
It is connected between U-shaped frame one using screw, photoelectric encoder one is connected firmly by screw with encoder axis one, U-shaped frame one and encoder
It selects pairs of angular contact ball bearing one to support between axis one, guarantees encoder axis one and one concentricity of motor shaft, U-shaped frame bottom peace
Fill vibration isolation gasket four.
4. a kind of aspheric lens of passive vibration damping according to claim 3 pushes away sweeping and sweeps type aerial camera, feature exists
In: the course axis precision bearing system includes: torque motor two, motor connecting base two, motor shaft two, vibration isolation gasket two, deep-groove ball
Bearing two, U-shaped frame two, photoelectric encoder two, encoder axis two, encoder attachment base two, pairs of angular contact ball bearing two, roll
Frame two, structure roll axis precision bearing system is identical, and U-shaped frame two, which is bolted, is anchored on roll frame one.
5. a kind of aspheric lens of passive vibration damping according to claim 1 pushes away sweeping and sweeps type aerial camera, feature exists
In: the pitch axis precision bearing system includes torque motor three, motor connecting base three, motor shaft three, vibration isolation gasket three, deep-groove ball axis
Hold three, motor cabinet, photoelectric encoder three, encoder attachment base three, pairs of angular contact ball bearing three, encoder axis three, encoder
Seat, reflecting mirror, reflecting mirror tabletting and mirror unit, wherein torque motor three is fixed on motor cabinet, power by motor connecting base three
It is connected firmly between torque motor three and motor connecting base three, between motor connecting base three and motor cabinet using screw, three He of torque motor
Vibration isolation gasket three is placed between motor shaft three, is fastened by screw, is supported between motor cabinet and motor three with deep groove ball bearing three,
Photoelectric encoder three is fixed on encoder seat by encoder attachment base three, photoelectric encoder three and encoder attachment base three it
Between, all connected using screw between encoder attachment base three and encoder seat, with pairs of between encoder seat and encoder axis three
Angular contact ball bearing three supports, and reflecting mirror is placed in mirror unit, and is fixed by four reflecting mirror tablettings and screw, coding
Device axis three and motor shaft three are coaxial, and motor cabinet and encoder seat are connected with and are anchored on roll frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910070565.XA CN109578759B (en) | 2019-01-25 | 2019-01-25 | Passive vibration reduction type aspheric lens push-broom swing-broom type aviation camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910070565.XA CN109578759B (en) | 2019-01-25 | 2019-01-25 | Passive vibration reduction type aspheric lens push-broom swing-broom type aviation camera |
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| Publication Number | Publication Date |
|---|---|
| CN109578759A true CN109578759A (en) | 2019-04-05 |
| CN109578759B CN109578759B (en) | 2023-12-15 |
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| CN201910070565.XA Active CN109578759B (en) | 2019-01-25 | 2019-01-25 | Passive vibration reduction type aspheric lens push-broom swing-broom type aviation camera |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110362120A (en) * | 2019-07-24 | 2019-10-22 | 中国科学院西安光学精密机械研究所 | A kind of two-dimensional scanning wide cut imaging platform scan control method |
| CN110645311A (en) * | 2019-10-23 | 2020-01-03 | 长春工业大学 | Formula of sweeping photoelectricity stabilising arrangement that takes photo by plane |
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