CN106526884A - Alignment system and adjusting method for large-calibre space optical camera lens - Google Patents
Alignment system and adjusting method for large-calibre space optical camera lens Download PDFInfo
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- CN106526884A CN106526884A CN201611063943.4A CN201611063943A CN106526884A CN 106526884 A CN106526884 A CN 106526884A CN 201611063943 A CN201611063943 A CN 201611063943A CN 106526884 A CN106526884 A CN 106526884A
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- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
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Abstract
The invention, which relates to the space optical remote sensing field, provides an alignment system and adjusting method for a large-calibre space optical camera lens. With the system and method, problems of low optical transfer function and imaging quality of the optical system of the existing large-calibre space optical camera lens can be solved. The alignment system comprises a camera lens, a lens alignment frame, three lens connecting bases, a secondary lens alignment frame, a secondary lens adjusting frame, a plane lens, a plane lens two-dimensional adjusting mechanism, an interferometer, an interferometer adjusting frame, and a three-lens adjusting frame. The camera lens consists of a camera frame, a secondary lens assembly, a secondary lens pad block, a main lens assembly, a camera substrate, a rear bracket, a first folding lens assembly, a three-lens assembly, a three-lens pad block, a second folding lens assembly, and three connecting supports. With the alignment structure at the vertical direction of the optical axis of the camera lens, the precision changes of relative positions of all reflection lenses are small and the imaging quality of the optical system is kept to be the same when the large-calibre space optical camera lens enters a microgravity environment of the space after alignment on the ground.
Description
Technical field
The present invention relates to space optical remote technical field, and in particular to a kind of large-caliber space optical camera lens are debug
System and Method of Adjustment.
Background technology
Large-caliber space optical camera lens are usually reflective optical system, typically by principal reflection mirror, secondary mirror and
3rd reflecting mirror is constituted.For large-caliber space optical camera lens, three reflecting mirrors are needed with high relative position essence
Degree, to ensure the image quality of optical system.It is right to pass through during the development and production of large-caliber space optical camera lens
The high accuracy of each reflecting mirror is debug, and finally meets the image quality of optical system and requires.However, due to large-caliber space optical
Camera lens are operated in the microgravity environment of space, and its structure gravity suffered at ground can disappear, and Gravity changer
The relative positional accuracy between each reflecting mirror can be caused to decline, and then reduce the image quality of optical system.Therefore, to heavy caliber
When space optical camera camera lens is designed and debugs, need to reduce as far as possible Gravity changer to relative positional accuracy between each reflecting mirror
Impact, to ensure the image quality of optical system.
At present, generally using the mode of debuging of optical axis level, this mode of debuging is by camera to space optical camera camera lens
Camera lens, debug frock and testing equipment is laid on vibration-isolating platform simple dislocation arrangement, structure of the camera lens using high rigidity
Design, so after work of entering the orbit, relative positional accuracy is varied less between each reflecting mirror that Gravity changer causes, optical system
Image quality change it is little.But, above-mentioned this Method of Adjustment is only applicable to the less space optical camera camera lens of bore, right
In large-caliber space optical camera lens, due to its physical dimension it is huge, particularly the spacing of principal reflection mirror and secondary mirror compared with
Cantilever design is similar to () greatly, its structural deflection is big, and between each reflecting mirror that Gravity changer causes, relative positional accuracy is changed greatly,
The optical transfer function of optical system is caused significantly to decline, optical system imaging quality significantly declines.
In sum, need badly and develop a kind of assembling ＆ adjusting system and method suitable for large-caliber space optical camera lens,
To eliminate the problem that relative positional accuracy is changed greatly between each reflecting mirror in the optical system that Gravity changer causes.
The content of the invention
In order to solve large-caliber space optical camera lens after ground optical axis level completes to debug, due in optical system
The larger cantilever effect for causing of primary and secondary mirror spacing it is very sensitive to Gravity changer, it is into after the microgravity environment of space, each anti-
Penetrate relative positional accuracy between mirror and large change can occur, under causing the optical transfer function and image quality of optical system significantly
The problem of drop, the present invention provide a kind of large-caliber space optical camera lens assembling ＆ adjusting system and Method of Adjustment.
The present invention is as follows by solving the technical scheme that technical problem is adopted：
The large-caliber space optical camera lens assembling ＆ adjusting system of the present invention, including：
Camera lens debugs frame；
It is evenly distributed on camera lens and debugs three camera lens connecting seats on frame lower end inner wall circumference；
It is fixed on camera lens and debugs the secondary mirror of frame upper end and debugs frame；
It is fixed on the secondary mirror adjustment frame that secondary mirror debugs frame lower surface center；
It is fixedly connected on the plane mirror two-dimensional adjusting mechanism that camera lens debugs frame top；
The flat fire mirror being fixed in plane mirror two-dimensional adjusting mechanism；
It is placed on the interferometer adjustment frame that camera lens debugs frame bottom；
Interferometer in interferometer adjustment frame；
It is fixed on camera lens and debugs three mirror adjustment frames on frame lower end inner wall；
Camera lens, its optical axis are placed in the vertical direction, and including camera substrate, are evenly distributed on camera base lower surface
Three connects bearings that circumference and being corresponded with three camera lens connecting seats is connected, be fixed on camera base lower surface rear
Frame, the primary mirror component for being fixed on camera upper surface of base plate, be fixed on the camera frame at camera upper surface of base plate edge, be fixed on after
The first folding mirror assembly and second on support folds mirror assembly, is fixed on secondary mirror adjustment frame lower surface center while by secondary mirror
Cushion block is arranged on the secondary mirror assembly of camera frame upper end center, is fixed in three mirror adjustment frames while being arranged on by three mirror cushion blocks
Three mirror assemblies of camera base lower surface；Described first folds mirror assembly and camera lens optical axis angle at 45 °, first folding
Folded mirror assembly is centrally located on the camera lens optical axis；
The optical axis coincidence of the plane mirror, secondary mirror assembly, the optical axis of primary mirror component three with camera lens.
Further, by secondary mirror adjustment frame realize to secondary mirror assembly X-axis, Y-axis, three translation directions of Z axis and pitching,
The sextuple adjustment rocked, rotate in three rotation directions.
Further, by plane mirror two-dimensional adjusting mechanism realize to plane mirror in pitching, rock in two rotation directions
Adjustment.
Further, by interferometer adjustment frame realize to interferometer in pitching, rock two rotation directions and X-axis, Y
Five dimension adjustment on axle, three translation directions of Z axis.
Further, by three mirror adjustment frames realize to three mirror assemblies X-axis, Y-axis, three translation directions of Z axis and pitching,
The sextuple adjustment rocked, rotate in three rotation directions.
Present invention also offers a kind of large-caliber space optical camera lens Method of Adjustment, comprises the following steps：
Step one, connects bearing is fixed on into camera base lower surface first, then primary mirror component is solid according to its theoretical position
Camera upper surface of base plate is scheduled on, is fastened after finally positioned camera frame by alignment pin and camera substrate；
Step 2, camera lens connecting seat is fixed on into camera lens first debugs on frame lower end inner wall, then by camera substrate together with connection
Bearing, primary mirror component, camera frame are lifted into camera lens and debug on frame, and finally connects bearing is fastenedly connected with camera lens connecting seat,
Ensure the optical axis of camera lens 1 along vertical direction；
Step 3, flat fire mirror is fixed in plane mirror two-dimensional adjusting mechanism, then the two is integrally attached to into camera lens and debug
Frame top；
Step 4, after-poppet is fixed on camera base lower surface, mirror assembly is folded by first solid according to its theoretical position
It is scheduled on after-poppet；
Step 5, secondary mirror is debug after frame, secondary mirror adjustment frame and secondary mirror assembly are connected and be installed to camera lens and debug frame upper end, lead to
Cross adjustment interferometer adjustment frame adjustment interferometer to be located at image planes；
Step 6, using system auto-collimation method, the light beam that the interferometer is sent from image planes Jing first successively
Folding mirror assembly, camera substrate, primary mirror component, secondary mirror assembly, primary mirror component, flat fire mirror are reflected back dry according to original optical path after reflecting
In interferometer, interference fringe and systematic wavefront are ultimately formed, repeatedly adjusted according to the aberration-types and size in interference fringe
Secondary mirror adjustment frame eliminates aberration, realizes the accurate adjustment of primary mirror component and time mirror assembly relative position；
Step 7, measurement time the distance between mirror assembly and each junction point of camera frame, repair and grind secondary mirror cushion block, by secondary microscope group
Secondary mirror is debug frame, secondary mirror adjustment frame after being connected and is removed by part, secondary mirror cushion block, camera frame；
Step 8, by second folding mirror assembly be fixed on after-poppet according to its theoretical position, by three mirror assemblies and three mirrors
Adjustment frame is placed at three mirror assemblies after fixing, and is located at secondary image planes by adjusting interferometer adjustment frame adjustment interferometer
Place；
Step 9, using system auto-collimation method, the light beam that the interferometer is sent from secondary image planes Jing second successively
Fold mirror assembly, three mirror assemblies, the first folding mirror assembly, camera substrate, primary mirror component, secondary mirror assembly, primary mirror component, flat fire mirror
It is reflected back in interferometer according to original optical path after reflection, ultimately forms interference fringe and systematic wavefront, according in interference fringe
Aberration-types and size repeatedly three mirror adjustment frames of adjustment eliminate aberration, realize three mirror assemblies, primary mirror component and secondary mirror assembly phase
Accurate adjustment to position；
Step 10, measurement the distance between three mirror assemblies and each junction point of camera substrate, repair Kenzo mirror cushion block, by three microscope groups
Three mirror adjustment frames are removed after being connected by part, three mirror cushion blocks, camera substrate, are completed camera lens and are integrally debug.
The invention has the beneficial effects as follows：
1st, large-caliber space optical camera lens assembling ＆ adjusting system of the invention, using plane mirror, interferometer and camera lens
System auto-collimation detection method, the fine setting of camera lens is carried out by finely tuning relative position between each reflecting mirror, while adopting
Structure is debug with camera lens optical axis vertical direction, it is ensured that large-caliber space optical camera lens complete to debug on ground
When afterwards, into the microgravity environment of space, between each reflecting mirror, relative positional accuracy change is less, and optical system imaging quality is basic
Keep constant.The large-caliber space optical camera lens assembling ＆ adjusting system of the present invention, simple structure are easy to operate, and resetting difficulty is little.
2nd, large-caliber space optical camera lens Method of Adjustment of the invention, vertical as a result of the optical axis of camera lens
Mode is debug in direction, and almost without cantilever between primary and secondary mirror, the rigidity of structure is high, therefore enters in large-caliber space optical camera lens
During the microgravity environment of space, between each reflecting mirror, relative positional accuracy change is less, and optical system imaging quality is kept not substantially
Become.The large-caliber space optical camera lens Method of Adjustment of the present invention, operation is simple and reliable, can implement with splendid engineering
Property.
3rd, large-caliber space optical camera lens assembling ＆ adjusting system of the invention and Method of Adjustment are anti-suitable for optical sensor
Penetrate the fields such as microscopy survey and optical system alignment.
Description of the drawings
Front views of the Fig. 1 for camera lens.
Fig. 2 is the top view of the camera lens shown in Fig. 1.
Fig. 3 is the profile of the large-caliber space optical camera lens assembling ＆ adjusting system of the present invention.
Fig. 4 is the profile of the large-caliber space optical camera lens assembling ＆ adjusting system of the present invention.
In figure：1st, camera lens, 101, camera frame, 102, secondary mirror assembly, 103, secondary mirror cushion block, 104, primary mirror component,
105th, camera substrate, 106, after-poppet, 107, first folds mirror assembly, 108, three mirror assemblies, 109, three mirror cushion blocks, and 110, second
Fold mirror assembly, 111, image planes, 112, secondary image planes, 113, connects bearing, 2, camera lens debug frame, 3, camera lens connecting seat,
4th, secondary mirror debugs frame, and 5, secondary mirror adjustment frame, 6, plane mirror, 7, plane mirror two-dimensional adjusting mechanism, 8, interferometer, 9, interferometer adjustment
Frame, 10, three mirror adjustment frames.
Specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
The large-caliber space optical camera lens assembling ＆ adjusting system of the present invention, mainly includes：Camera lens 1, camera lens debug frame
2nd, three camera lens connecting seats 3, secondary mirror debug frame 4, secondary mirror adjustment frame 5, plane mirror 6, plane mirror two-dimensional adjusting mechanism 7, interferometer
8th, interferometer adjustment frame 9, three mirror adjustment frames 10.
As shown in Figures 1 to 4, three camera lens connecting seats 3 are fixedly connected on camera lens by screw and debug 2 lower end inner wall of frame
On, three camera lens connecting seats 3 debug the distribution of 2 lower end inner wall even circumferential of frame along camera lens.Secondary mirror is debug frame 4 and is fixedly connected on mirror
Head debugs 2 upper end of frame.Secondary mirror adjustment frame 5 is fixedly connected on secondary mirror and debugs 4 lower surface center of frame, and secondary mirror adjustment frame 5 can be realized
The sextuple adjustment of three translation directions (X-axis, Y-axis, Z axis) and three rotation directions (pitching, rock, rotate).Flat fire mirror 6 is fixed
It is connected in plane mirror two-dimensional adjusting mechanism 7.Plane mirror two-dimensional adjusting mechanism 7 is fixedly connected on camera lens and debugs 2 top of frame, plane
Mirror two-dimensional adjusting mechanism 7 can be realized pitching and rock the adjustment of two rotation directions.Interferometer adjustment frame 9 is placed on camera lens dress
Adjust frame 2 bottom, interferometer adjustment frame 9 can realize around the optical axis of camera lens 1 rotate beyond two rotation directions (pitching,
Rock) and three translation directions (X-axis, Y-axis, Z axis) five dimension adjustment.Interferometer 8 is arranged in interferometer adjustment frame 9.Three mirrors
Adjustment frame 10 is fixed on camera lens and debugs on 2 lower end inner wall of frame, three mirror adjustment frames 10 can realize three translation directions (X-axis, Y-axis,
Z axis) and three rotation directions (pitching, rock, rotate) sextuple adjustment.Secondary mirror adjustment frame 5, plane mirror two-dimensional adjusting mechanism 7,
Interferometer adjustment frame 9, the adjustment amount of three mirror adjustment frames 10 and Adjustment precision are required to according to specific optical design tolerance grade
It is determined.
As shown in Figures 1 to 4, camera lens 1 include：Camera frame 101, secondary mirror assembly 102, secondary mirror cushion block 103, primary mirror
Component 104, camera substrate 105, after-poppet 106, first fold mirror assembly 107, three mirror assemblies 108, three mirror cushion blocks 109, second
Fold 110, image planes 111 of mirror assembly, 112, three connects bearings 113 of secondary image planes.105 center of camera substrate is through hole,
The clear size of opening is identical with the central hole size of primary mirror component 104.Three connects bearings 113 are fixedly connected on phase by screw
105 lower surface of machine substrate, three connects bearings 113 are distributed along 105 lower surface even circumferential of camera substrate.After-poppet 106 leads to
Cross screw and be fixedly connected on 105 lower surface of camera substrate.Primary mirror component 104 is fixedly connected on camera substrate 105 by screw
Surface.Camera frame 101 is first passed through alignment pin and is positioned with camera substrate 105, then is fastenedly connected both by screw, phase
Machine frame 101 is fixedly connected on 105 top surface edge of camera substrate.By the camera substrate 105 after connection overall (i.e. camera substrate
101) 105 be lifted into camera lens together with connects bearing 113, primary mirror component 104, camera frame debugs on frame 2, then connects three
Bearing 113 is fastened using screw with three camera lens connecting seats 3 respectively, makes camera lens 1 with being connected to that camera lens adjustment frame 2 is consolidated
Together.Secondary mirror assembly 102 is fixedly connected on 5 lower surface center of secondary mirror adjustment frame, while secondary mirror assembly 102 passes through secondary mirror cushion block
103 are arranged on 101 upper end center of camera frame.First folding mirror assembly 107 is fixedly connected on after-poppet 106 by screw,
First folds the through hole lower end that mirror assembly 107 is located at camera substrate 105, and first folds the optical axis of mirror assembly 107 and camera lens 1
Angle at 45 °, the first folding mirror assembly 107 are centrally located on the optical axis of camera lens 1.Three mirror assemblies 108 are fixedly connected on
In three mirror adjustment frames 10, while three mirror assemblies 108 are arranged on 105 lower surface of camera substrate by three mirror cushion blocks 109.Second folds
Mirror assembly 110 is fixedly connected on after-poppet 106 by screw.To secondary mirror assembly 102, primary mirror component 104 and three mirror assemblies
During 108 are debug, plane mirror 6 and interferometer 8 is needed to be finely adjusted jointly to realize its fine setting.
The optical axis weight of above-mentioned plane mirror 6, secondary mirror assembly 102, the equal optical axis of 104 three of primary mirror component and camera lens 1
Close.
A kind of large-caliber space optical camera lens Method of Adjustment of the present invention, is by above-mentioned large-caliber space optical
What camera lens assembling ＆ adjusting system was realized, the main optical axis vertical direction using camera lens 1 debugs mode, and which is specifically debug
Process is as follows：
Step one, connects bearing 113 is fixed on into 105 lower surface of camera substrate first, then primary mirror component 104 is managed according to which
105 upper surface of camera substrate is fixed on by position, it is fixed that finally camera frame 101 is carried out by alignment pin and camera substrate 105
Fasten behind position；
Step 2, camera lens connecting seat 3 be fixed on into camera lens first debug on 2 lower end inner wall of frame, then by camera substrate 105 together with
Connects bearing 113, primary mirror component 104, camera frame 101 are lifted into camera lens and debug on frame 2, finally by connects bearing 113 and mirror
Head connecting seat 3 is fastenedly connected, it is ensured that the optical axis of camera lens 1 is along vertical direction；
Step 3, flat fire mirror 6 is fixed in plane mirror two-dimensional adjusting mechanism 7, then the two is integrally attached to into camera lens dress
Adjust 2 top of frame；
Step 4, after-poppet 106 is fixed on 105 lower surface of camera substrate, mirror assembly 107 is folded by first and managed according to which
It is fixed on after-poppet 106 by position；
Step 5, secondary mirror is debug after frame 4, secondary mirror adjustment frame 5 and secondary mirror assembly 102 are connected and be installed to camera lens and debug frame 2
Upper end, is located at image planes 111 by adjusting 9 adjustment interferometer 8 of interferometer adjustment frame；
Step 6, using system auto-collimation method, the light beam that the interferometer 8 is sent from image planes 111 Jing successively
First folding mirror assembly 107, camera substrate 105, primary mirror component 104, secondary mirror assembly 102, primary mirror component 104, flat fire mirror 6 reflect
It is reflected back in interferometer 8 according to original optical path afterwards, ultimately forms interference fringe and systematic wavefront, according to the picture in interference fringe
Difference type and size repeatedly adjust secondary mirror adjustment frame 5 and eliminate aberration, make systematic wavefront RMS value better than λ/15, realize primary mirror
The accurate adjustment of component 104 and time 102 relative position of mirror assembly；
The distance between step 7, measurement time mirror assembly 102 and 101 each junction point of camera frame, repair and grind secondary mirror cushion block
103, secondary mirror is debug into frame 4, secondary mirror adjustment frame 5 after secondary mirror assembly 102, secondary mirror cushion block 103, camera frame 101 are connected and is removed；
Step 8, by second folding mirror assembly 110 be fixed on after-poppet 106 according to its theoretical position, by three mirror assemblies
108 and three mirror adjustment frame 10 fix after be placed at three mirror assemblies 108, made by adjusting interferometer adjustment frame 9 and adjusting interferometer 8
Which is located at secondary image planes 112；
Step 9, using system auto-collimation method, the light beam that the interferometer 8 is sent from secondary image planes 112 Jing successively
Second folds mirror assembly 110, three mirror assemblies 108, first folds mirror assembly 107, camera substrate 105, primary mirror component 104, secondary mirror
Component 102, primary mirror component 104, flat fire mirror 6 reflect after be reflected back in interferometer 8 according to original optical path, ultimately form interference fringe and
Systematic wavefront, according to the aberration-types and size in interference fringe, repeatedly adjustment three mirror adjustment frame 10 eliminates aberration, make be
System wavefront error RMS value is better than λ/10, realizes three mirror assemblies 108, the essence of 102 relative position of primary mirror component 104 and secondary mirror assembly
Really adjust；
The distance between step 10, three mirror assembly 108 of measurement and 105 each junction point of camera substrate, repair Kenzo mirror cushion block
109, three mirror adjustment frames 10 are removed after three mirror assemblies 108, three mirror cushion blocks 109, camera substrate 105 are connected, complete camera mirror
1 overall debugs.
Specific embodiment one
The large-caliber space optical camera that 3.5m, focal length are 30m is reached for a bore 2.5m, primary mirror and secondary mirror interval
Camera lens is debug, and detailed process is as follows：
Step one, three connects bearings 113 are fixedly connected on into 105 lower surface of camera substrate by screw, three connections
Bearing 113 is distributed along 105 lower surface even circumferential of camera substrate, and primary mirror component 104 is passed through screw according to its theoretical position
105 upper surface of camera substrate is fixedly connected on, camera frame 101 is positioned by alignment pin with camera substrate 105, then
Camera frame 101 is fixedly connected on into 105 top surface edge of camera substrate by screw.
Step 2, three camera lens connecting seats 3 are fixedly connected on into camera lens by screw debug on 2 lower end inner wall of frame, three
Camera lens connecting seat 3 debugs the distribution of 2 lower end inner wall even circumferential of frame along camera lens, by the 105 overall (camera of camera substrate after connection
101) substrate 105 is lifted into camera lens and debugs on frame 2, then using spiral shell together with connects bearing 113, primary mirror component 104, camera frame
Three connects bearings 113 are fastenedly connected by nail respectively with three camera lens connecting seats 3, make camera lens 1 and camera lens adjustment frame 2
Firm links together, meanwhile, the optical axis for ensureing camera lens 1 is needed along vertical direction.
Step 3, flat fire mirror 6 is fixedly connected in plane mirror two-dimensional adjusting mechanism 7, by plane mirror two-dimensional adjusting mechanism 7
Camera lens is fixedly connected on together with plane mirror 6 and debugs 2 top of frame.
Step 4, after-poppet 106 is fixedly connected on into 105 lower surface of camera substrate by screw, microscope group is folded by first
Part 107 is fixedly connected on after-poppet 106 by screw according to its theoretical position.
Step 5, as shown in figure 3, by secondary mirror debug frame 4, secondary mirror adjustment frame 5 and secondary mirror assembly 102 by screw fix connect
Camera lens is installed to after being connected together and debugs 2 upper end of frame, interferometer 8 is arranged in interferometer adjustment frame 9, by adjusting interferometer
Adjustment frame 9 is measured using the coarse positioning instrument such as tape measure adjusting the position of interferometer 8, makes interferometer 8 be located at image planes
Near 111 theoretical position.
Step 6, as shown in figure 3, adopting the autocollimatic detection method of system, interferometer 8 sent from image planes 111
Light beam is mapped on the first folding mirror assembly 107, passes sequentially through the logical of camera substrate 105 after being reflected by the first folding mirror assembly 107
Hole, the centre bore of primary mirror component 104 are incided on time mirror assembly 102, and the light beam for receiving is reflexed to primary mirror by secondary mirror assembly 102
On component 104, primary mirror component 104 reflexes to the light beam for receiving on flat fire mirror 6, reflex to light beam on flat fire mirror 6 again by
It is reflected back in interferometer 8 according to original optical path that (i.e. light beam is according to plane mirror 6, primary mirror component 104, secondary mirror assembly 102, the first refrative mirror
Component 107, the order of interferometer 8 are reflected), interference fringe and systematic wavefront are ultimately formed, due to primary mirror component 104
Occur in there is the initial position error of 0.3mm or so, therefore the interference fringe for being formed and secondary mirror assembly 102 between spherical aberration,
The aberration such as coma and astigmatism, systematic wavefront also can repeatedly finely tune secondary mirror adjustment according to the type and size of aberration than larger
Frame 5 eliminate aberration, make systematic wavefront RMS value better than λ/15 (when λ is optical system detection, the laser beam that interferometer 8 sends
Wavelength, λ=632.8nm) design requirement, realize the essence of primary mirror component 104 and time mirror assembly 102 relative position between the two
Really adjust.
Step 7, respectively connected with camera frame 101 using the high-acruracy survey such as inside dial indicator instrument measurement time mirror assembly 102
The distance between contact, repaiies and grinds secondary mirror cushion block 103, and secondary mirror assembly 102, secondary mirror cushion block 103, camera frame 101 are passed through screw
It is fixed together, the attachment screw then debug secondary mirror between frame 4, secondary mirror adjustment frame 5 and secondary mirror assembly 102 unclamps,
And secondary mirror is debug into frame 4, secondary mirror adjustment frame 5 remove.
Step 8, as shown in figure 4, by second folding mirror assembly 110 be fixedly connected on by screw according to its theoretical position
On after-poppet 106, three mirror assemblies 108 after three mirror assemblies 108 are fixedly connected by screw with three mirror adjustment frames 10, are placed on
Near theoretical position, the position of interferometer 8 is adjusted by adjusting interferometer adjustment frame 9, entered using the coarse positioning instrument such as tape measure
Row measurement, makes interferometer 8 be located near the theoretical position of secondary image planes 112.
Step 9, as shown in figure 4, adopting the autocollimatic detection method of system, interferometer 8 sent from secondary image planes 112
Light beam is mapped on the second folding mirror assembly 110, and the light beam for receiving is reflexed to three mirror assemblies 108 by the second folding mirror assembly 110
On, three mirror assemblies 108 reflex to the light beam for receiving on the first folding mirror assembly 107, and first folds 107 pairs of receptions of mirror assembly
To light beam reflected after pass sequentially through the through hole of camera substrate 105, the centre bore of primary mirror component 104 and incide time mirror assembly
On 102, secondary mirror assembly 102 reflexes to the light beam for receiving on primary mirror component 104, and primary mirror component 104 is by the light beam for receiving
Reflex on flat fire mirror 6, reflex to light beam on flat fire mirror 6 and be reflected back in interferometer 8 according still further to original optical path that (i.e. light beam is according to flat
Face mirror 6, primary mirror component 104, secondary mirror assembly 102, first fold mirror assembly 107, the order of interferometer 8 and are reflected), most end form
Into interference fringe and systematic wavefront, due to three mirror assemblies 108 be made up of primary mirror component 104 and time mirror assembly 102 be
Spherical aberration, coma and astigmatism iseikonia occurs in there is the initial position error of 0.4mm or so, therefore the interference fringe for being formed between system
Difference, systematic wavefront also can repeatedly be finely tuned three mirror adjustment frame 10 according to the type and size of aberration and eliminate aberration, make than larger
Systematic wavefront RMS value better than λ/10 (when λ is optical system detection, the wavelength of the laser beam that interferometer 8 sends, λ=
Design requirement 632.8nm), realizes relative position between three mirror assemblies 108,102 three of primary mirror component 104 and secondary mirror assembly
It is accurate to adjust.
Step 10, using the high-acruracy survey such as inside dial indicator instrument measure three mirror assemblies 108 respectively connect with camera substrate 105
The distance between contact, repaiies Kenzo mirror cushion block 109, and three mirror assemblies 108, three mirror cushion blocks 109, camera substrate 105 are passed through screw
It is fixed together, then the attachment screw between three mirror adjustment frames 10 and three mirror assemblies 108 is unclamped, and three mirrors is adjusted
Frame 10 is removed, and the entirety for completing camera lens 1 is debug.
In present embodiment, the theoretical position of each reflecting mirror can be understood as：
The relative position relation between the secondary mirror in primary mirror and secondary mirror assembly 102 in primary mirror component 104 is：Primary mirror center
Be respectively positioned on the optical axis of camera lens 1 with secondary mirror center, primary mirror center and secondary mirror centrally along on 1 optical axis direction of camera lens away from
From for 3500mm.
The relative position that secondary mirror and first in secondary mirror assembly 102 is folded between the first refrative mirror in mirror assembly 107 is closed
It is to be：Secondary mirror center and the first refrative mirror are 4100mm centrally along the distance on 1 optical axis direction of camera lens, along perpendicular to camera
Distance on 1 optical axis direction of camera lens is 107mm.
First folding mirror assembly 107 in the first refrative mirror and image planes 111 between relative position relation be：First
Refrative mirror center and image planes 111 are 112mm centrally along the distance on 1 optical axis direction of camera lens, along perpendicular to camera mirror
Distance on 1 optical axis direction is 455mm.
The relative position relation between three mirrors in image planes 111 and three mirror assemblies 108 is：111 center of image planes
Be 121mm centrally along the distance on 1 optical axis direction of camera lens with three mirrors, along on 1 optical axis direction of camera lens away from
From for 615mm.
The relative position that three mirrors and second in three mirror assemblies 108 are folded between the second refrative mirror in mirror assembly 110 is closed
It is to be：Three mirror centers and the second refrative mirror are 31mm centrally along the distance on 1 optical axis direction of camera lens, along perpendicular to camera mirror
Distance on 1 optical axis direction is 1637mm.
Second folding mirror assembly 110 in the second refrative mirror and secondary image planes 112 between relative position relation be：Second
Refrative mirror center and secondary image planes 112 are 129mm centrally along the distance on 1 optical axis direction of camera lens, along perpendicular to camera mirror
Distance on 1 optical axis direction is 1026mm.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (6)
1. large-caliber space optical camera lens assembling ＆ adjusting system, it is characterised in that include：
Camera lens debugs frame (2)；
It is evenly distributed on camera lens and debugs three camera lens connecting seats (3) on frame (2) lower end inner wall circumference；
It is fixed on camera lens and debugs the secondary mirror of frame (2) upper end and debugs frame (4)；
It is fixed on the secondary mirror adjustment frame (5) that secondary mirror debugs frame (4) lower surface center；
It is fixedly connected on the plane mirror two-dimensional adjusting mechanism (7) that camera lens debugs frame (2) top；
The flat fire mirror (6) being fixed in plane mirror two-dimensional adjusting mechanism (7)；
It is placed on the interferometer adjustment frame (9) that camera lens debugs frame (2) bottom；
Interferometer (8) in interferometer adjustment frame (9)；
It is fixed on camera lens and debugs three mirror adjustment frames (10) on frame (2) lower end inner wall；
Camera lens (1), its optical axis are placed in the vertical direction, and including camera substrate (105), are evenly distributed on camera substrate
(105) lower surface circumference and being corresponded with three camera lens connecting seats (3) is connected three connects bearings (113), it is fixed on phase
The after-poppet (106) of machine substrate (105) lower surface, the primary mirror component (104) for being fixed on camera substrate (105) upper surface, fixation
Camera frame (101), the first folding mirror assembly being fixed on after-poppet (106) in camera substrate (105) top surface edge
(107) and the second folds mirror assembly (110), is fixed on secondary mirror adjustment frame (5) lower surface center while by secondary mirror cushion block (103)
Secondary mirror assembly (102) installed in camera frame (101) upper end center, it is fixed in three mirror adjustment frames (10) while by three mirrors
Three mirror assemblies (108) of the cushion block (109) installed in camera substrate (105) lower surface；Described first folds mirror assembly (107) and phase
Machine camera lens (1) optical axis angle at 45 °, first folding mirror assembly (107) are centrally located on camera lens (1) optical axis；
The plane mirror (6), the optical axis of secondary mirror assembly (102), the optical axis of primary mirror component (104) three with camera lens (1)
Overlap.
2. large-caliber space optical camera lens assembling ＆ adjusting system according to claim 1, it is characterised in that adjusted by secondary mirror
Whole frame (5) realize to secondary mirror assembly (102) in X-axis, Y-axis, three translation directions of Z axis and pitching, rock, rotate three rotation sides
Sextuple adjustment upwards.
3. large-caliber space optical camera lens assembling ＆ adjusting system according to claim 1, it is characterised in that by plane mirror
Two-dimensional adjusting mechanism (7) is realized to plane mirror (6) in pitching, the adjustment rocked in two rotation directions.
4. large-caliber space optical camera lens assembling ＆ adjusting system according to claim 1, it is characterised in that by interferometer
Adjustment frame (9) realize to interferometer (8) pitching, rock two rotation directions and X-axis, Y-axis, on three translation directions of Z axis
Five dimension adjustment.
5. large-caliber space optical camera lens assembling ＆ adjusting system according to claim 1, it is characterised in that adjusted by three mirrors
Whole frame (10) realize to three mirror assemblies (108) in X-axis, Y-axis, three translation directions of Z axis and pitching, rock, rotate three rotations
Sextuple adjustment on direction.
6. the large-caliber space optical camera lens Method of Adjustment as described in any one in claim 1 to 5, its feature exist
In comprising the following steps：
Step one, connects bearing (113) is fixed on into camera substrate (105) lower surface first, then by primary mirror component (104) according to which
Theoretical position is fixed on camera substrate (105) upper surface, finally by camera frame (101) by alignment pin and camera substrate
(105) fasten after being positioned；
Step 2, camera lens connecting seat (3) is fixed on into camera lens first debugs on frame (2) lower end inner wall, then by camera substrate (105) even
Same connects bearing (113), primary mirror component (104), camera frame (101) are lifted into camera lens and debug on frame (2), finally by connection
Seat (113) is fastenedly connected with camera lens connecting seat (3), it is ensured that the optical axis of camera lens (1) is along vertical direction；
Step 3, flat fire mirror (6) is fixed in plane mirror two-dimensional adjusting mechanism (7), then the two is integrally attached to into camera lens dress
Adjust frame (2) top；
Step 4, after-poppet (106) is fixed on into camera substrate (105) lower surface, mirror assembly (107) is folded according to which by first
Theoretical position is fixed on after-poppet (106)；
Step 5, secondary mirror is debug camera lens is installed to after frame (4), secondary mirror adjustment frame (5) and time mirror assembly (102) are connected and debugs frame
(2) upper end, is located at image planes (111) place by adjusting interferometer adjustment frame (9) adjustment interferometer (8)；
Step 6, using system auto-collimation method, the light beam that the interferometer (8) is sent from from an image planes (111) Jing successively
First fold mirror assembly (107), camera substrate (105), primary mirror component (104), secondary mirror assembly (102), primary mirror component (104),
It is reflected back in interferometer (8) according to original optical path after flat fire mirror (6) reflection, ultimately forms interference fringe and systematic wavefront, root
According to the aberration-types and size in interference fringe repeatedly adjust secondary mirror adjustment frame (5) eliminate aberration, realize primary mirror component (104) and
The accurate adjustment of secondary mirror assembly (102) relative position；
The distance between step 7, measurement time mirror assembly (102) and each junction point of camera frame (101), repair and grind secondary mirror cushion block
(103) secondary mirror is debug frame (4), secondary mirror after, secondary mirror assembly (102), secondary mirror cushion block (103), camera frame (101) are connected to adjust
Whole frame (5) removes；
Step 8, by second folding mirror assembly (110) be fixed on after-poppet (106) according to its theoretical position, by three mirror assemblies
(108) three mirror assemblies (108) place is placed on after fixing with three mirror adjustment frames (10), by adjusting interferometer adjustment frame (9) adjustment
Interferometer (8) is located at secondary image planes (112) place；
Step 9, using system auto-collimation method, the light beam that the interferometer (8) is sent from from secondary image planes (112) Jing successively
Second folds mirror assembly (110), three mirror assemblies (108), the first folding mirror assembly (107), camera substrate (105), primary mirror component
(104), secondary mirror assembly (102), primary mirror component (104), flat fire mirror (6) are reflected back in interferometer (8) according to original optical path after reflecting,
Interference fringe and systematic wavefront are ultimately formed, according to repeatedly three mirrors of the adjustment adjustment of the aberration-types and size in interference fringe
Frame (10) eliminates aberration, realizes the accurate tune of three mirror assemblies (108), primary mirror component (104) and time mirror assembly (102) relative position
It is whole；
The distance between step 10, three mirror assemblies of measurement (108) and each junction point of camera substrate (105), repair Kenzo mirror cushion block
(109) three mirror adjustment frames (10) are removed after, three mirror assemblies (108), three mirror cushion blocks (109), camera substrate (105) are connected,
Complete camera lens (1) integrally to debug.
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