CN207424357U - Composite supporting structure of large-caliber reflector - Google Patents
Composite supporting structure of large-caliber reflector Download PDFInfo
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- CN207424357U CN207424357U CN201721441354.5U CN201721441354U CN207424357U CN 207424357 U CN207424357 U CN 207424357U CN 201721441354 U CN201721441354 U CN 201721441354U CN 207424357 U CN207424357 U CN 207424357U
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- 239000002131 composite material Substances 0.000 title claims description 19
- 230000005484 gravity Effects 0.000 claims abstract description 44
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 9
- 238000003780 insertion Methods 0.000 claims description 8
- 230000037431 insertion Effects 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 238000013016 damping Methods 0.000 claims description 4
- 240000002853 Nelumbo nucifera Species 0.000 claims description 3
- 235000006508 Nelumbo nucifera Nutrition 0.000 claims description 3
- 235000006510 Nelumbo pentapetala Nutrition 0.000 claims description 3
- 239000004642 Polyimide Substances 0.000 claims description 3
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- 229920001721 polyimide Polymers 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims 1
- 230000002411 adverse Effects 0.000 abstract description 2
- 150000001875 compounds Chemical group 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 239000004429 Calibre Substances 0.000 abstract 4
- 230000004313 glare Effects 0.000 description 7
- 230000003287 optical effect Effects 0.000 description 6
- 238000012360 testing method Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 208000032765 Device extrusion Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
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- 238000009434 installation Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000001338 self-assembly Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
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Abstract
In order to solve the unable stable stay who realizes heavy-calibre primary reflector of current strutting arrangement, more can't guarantee the technical problem of the shape of face precision of speculum, the utility model provides a compound bearing structure of heavy-calibre speculum utilizes gravity off-load subassembly to offset the reflector gravity to the adverse effect of shape of face, utilizes three top that is the circumference equipartition to draw supporting component to carry out three tops of horizontal axis and draw three, realizes the axial positioning of heavy-calibre speculum to guarantee the shape of face precision of heavy-calibre speculum.
Description
Technical field
The utility model belongs to optical technical field, and in particular to a kind of composite supporting structure of large caliber reflecting mirror, with
And it is supported using the composite supporting structure.
Background technology
Veiling glare is also referred to as stray light, refers to the useless light in optical system, and veiling glare arrival is placed on optical system focal plane
Stray radiation can be formed during the detector surface of position, reduces the contrast and clarity of image, target image can quilt when serious
Stray radiation noise is fallen into oblivion thus can not correct interpretation.
Off-axis parallel light tube system main function in veiling glare test system is that light source is collimated, and generates collimated light beam
To simulate infinity veiling glare light source.Key component of the principal reflection mirror as off-axis parallel light tube, contributes in parallel light tube system
The stray light of the overwhelming majority.
Generally, the speculum of more than diameter 500mm can be described as large caliber reflecting mirror.With reflection aperture of mirror increase,
In order to ensure reflecting mirror surface shape precision disclosure satisfy that optical requirement, speculum thickness must increase therewith, due to the matter of speculum
Amount is directly proportional to the quadratic sum thickness of diameter, and so its quality is also significantly increased therewith.It is big in off-axis parallel light tube on the ground
Bore principal reflection mirror using when be generally optical axis horizontality, i.e. principal reflection mirror is disposed vertically, and existing support device is general
It is relatively simple, it can not realize that stablizing for veiling glare test system Large diameter principal reflection mirror supports in laboratory, it is even more impossible to ensure
The surface figure accuracy of speculum.
Utility model content
In order to solve the problems, such as in background technology, the utility model provides a kind of composite support knot of large caliber reflecting mirror
Structure by drawing gravity off-load, the top of horizontal axis three three, enables large caliber reflecting mirror to stablize when being disposed vertically and keeps its face
Shape precision.
The technical solution of the utility model is:
A kind of composite supporting structure of large caliber reflecting mirror, including device part；Described device part includes mirror cell；It is special
Different part is：
Described device part further include at least three gravity off-load components being fixedly connected with the mirror cell, three first
Support component and three the second support components；
Gravity off-load component is respectively placed in mirror cell's above and below；The number of gravity off-load component below mirror cell and
Its angle with gravity direction, determines according to FEM mechanics analysis result；Gravity off-load component above mirror cell has two
It is a, one is respectively set in the symmetrical position in mirror cell, is determined with the angle of gravity direction according to FEM mechanics analysis result；
Gravity off-load component includes off-load disk, off-load chassis, pressing plate, off-load screw rod and off-load bearing；Off-load disk one end is embedding
In the mounting groove for entering off-load chassis one end, the off-load disk other end is mounted on the lateral surface for being supported large caliber reflecting mirror；Pressing plate set
It is located at outside the bulb of off-load screw rod, the bulb of off-load screw rod is fixed in the groove of the off-load chassis other end；Off-load bearing is L
Shape bearing, the afterbody of off-load screw rod are screwed in the off-load bearing wherein screw hole on one side；The another side of off-load bearing is fixed on mirror cell
On；
First support component and the second support component correspond, and form three top pull support components, three top pull supports
Component is set along the distribution of large caliber reflecting mirror even circumferential is supported, and realizes the axially position for being supported large caliber reflecting mirror, and
One of top pull support component is located at the surface of mirror cell；
First support component includes top plate, chassis, nut, ball and adjusting screw rod；One, chassis opens up peace in the middle part of end face
Tankage offers circular groove in the middle part of another end face, internal thread, circular groove bottom surface is provided on circular groove madial wall
Middle part offers ball positioning groove；In the mounting groove on one end insertion chassis of top plate, the other end is with being supported large caliber reflecting mirror
Back fitting；In the ball positioning groove on ball insertion chassis；Adjusting screw rod is screwed in the screw hole in mirror cell, and its one end is withstood
The ball；External screw thread is offered on the lateral wall of nut, the circular groove that nut screws in chassis is threadedly coupled with it, will adjust
One end of screw rod and ball are encapsulated in the circular groove on chassis；
Second support component includes pull rod, cushion block, pedestal and adjusting screw；Pedestal is fixed in mirror cell, and pull rod stretches into mirror
In through hole on room, adjusting screw is screwed in pull rod through the screw hole on pedestal, and cushion block is pressed in to be supported heavy caliber anti-
It penetrates on the postnotum of mirror.
Preferably, above-mentioned adjusting screw rod withstands the concave surface for having on the end face of ball and being adapted with ball.
Preferably, above-mentioned adjusting screw rod is T-bar, and big end is head, for withstanding the ball.
Preferably, the mounting groove on above-mentioned chassis is the step circular groove that is made of peripheral groove and interior circular groove, the one of top plate
In the embedded peripheral groove in end.
Preferably, above-mentioned ball positioning groove is v-depression, conical socket or arc groove.
Preferably, above-mentioned off-load disk, top plate and cushion block are made of the good nonmetallic materials of damping and amortization.
Preferably, above-mentioned off-load disk, top plate and cushion block are made of polytetrafluoroethylene (PTFE) or polyimides.
Preferably, above-mentioned composite supporting structure further includes structure division, and the structure division is supported big mouth to be opened in
The annular mirror body groove of footpath speculum lateral surface, described device is partially installed on the mirror body groove, and is hidden in and is supported
After large caliber reflecting mirror minute surface；
The depth and width and mirror body groove of the mirror body groove deviate from the thickness of minute surface one side postnotum, according to
FEM mechanics analysis result determines；
The gravity off-load component is arranged on mirror body groove, and the other end of off-load disk is embedded in the mirror body groove,
It is contacted with the slot bottom of mirror body groove；
Second support component is arranged on mirror body groove, and cushion block is pressed in mirror body groove on the side wall of mirror cell.
Compared with the support device of existing large caliber reflecting mirror, the beneficial effects of the utility model are：
1st, the utility model solves the veiling glare test off-axis parallel light tube principal reflection mirror of system Large diameter in laboratory
Gravity off-load and support problem, the adverse effect of speculum gravity opposite shape is offset by gravity off-load component, is in using three
The top pull support component of circumference uniform distribution realizes the axially position of large caliber reflecting mirror, so as to ensure the face shape essence of large caliber reflecting mirror
Degree.
2nd, the device part Hide All of the utility model avoids mirror peripheral support device protrusion after speculum
And the new stray light source introduced.
3rd, the good non-gold of damping and amortization is selected in the utility model device part with the part that large caliber reflecting mirror contacts directly
Belong to material, so as to substantially reduce contact stress.
Description of the drawings
Fig. 1 is the composite supporting structure example structure schematic diagram of the utility model large caliber reflecting mirror；
Fig. 2 is the right view of Fig. 1；
Fig. 3 hides the right view behind mirror cell for Fig. 1；
Fig. 4 is the schematic diagram of top pull support component；
Fig. 5 is gravity off-load component diagram.
Reference numeral is as follows：1- is supported large caliber reflecting mirror, 11- mirror body grooves, 2- mirror cells, 21- through holes, and 3- gravity unloads
Lotus component, 31- off-load disks, 32- off-loads chassis, 33- pressing plates, 34- off-load screw rods, 35- off-load bearings, 36- bulbs, 4- first
Support component, 41- top plates, 42- chassis, 43- nuts, 44- balls, 45- adjusting screw rods, 46- ball positioning grooves, 5- the second support groups
Part, 51- pull rods, 52- cushion blocks, 53- pedestals, 54- adjusting screws, 6- top pull support components.
Specific embodiment
Below in conjunction with attached drawing 1-5, the composite supporting structure of the utility model large caliber reflecting mirror is described in detail.
The test of system is tested entire veiling glare in view of the material surface radiation characteristic of principal reflection mirror perimeter support device
Precision is affected, miscellaneous in order to eliminate this as far as possible if solar absorptance is not high enough to introduce new stray light source in radiation characteristic
Support device is designed as form of the Hide All in mirror surface behind by light source, the present embodiment.Therefore, the utility model is compound
Support construction includes device portions and the structure part；Structure division is the annular mirror body groove 11 for being opened in speculum lateral surface,
Postnotum (mirror body away from the minute surface one side) thickness stayed at the depth and width of mirror body groove 11 and mirror body groove 11 needs
It is determined (known method) according to FEM mechanics analysis result, and the installation space needed for device part should be met, make device portion
Divide Hide All after the minute surface of large caliber reflecting mirror 1 is supported.In the application scenario that other are influenced without considering stray light source, do not have to
Consider to install device part Hide All, certainly also just without opening up mirror body groove in mirrored side.
As shown in Figures 1 to 5, the device part of the utility model mainly includes mirror cell 2 (for flange arrangement) and is mounted on
3, three the first support components 4 of gravity off-load component and three the second support components 5 in mirror cell 2；Gravity off-load component 3,
One support component 4 and the second support component 5 directly act on and are supported large caliber reflecting mirror 1；
First support component 4 and the second support component 5, which correspond, forms three top pull support components 6, three top pull branch
Support component 6 is set along the distribution of large caliber reflecting mirror even circumferential is supported, anti-to being supported heavy caliber using supported at three point principle
It penetrates mirror 1 to push up but also draw not only, realizes the axially position of speculum, and one of top pull support component is located at the surface of mirror cell 2.
Since surface is the negative direction of gravity direction, a top pull support component is being arranged above, speculum is not easy to turn on one's side.
Gravity off-load component 3 includes off-load disk 31, off-load chassis 32, pressing plate 33, off-load screw rod 34 and off-load bearing 35；It unloads
In the mounting groove (circular groove) of 31 one end of lotus disk insertion off-load chassis, 32 one end, in 31 other end of off-load disk insertion mirror body groove 11 with
The bottom surface contact of mirror body groove 11；The bulb 36 of off-load screw rod 34 is fixed on the groove of 32 other end of off-load chassis by pressing plate 33
It is interior；Off-load bearing 35 is L-shaped bearing, and the afterbody of off-load screw rod 34 is vertically screwed in the screw hole on wherein one side of off-load bearing 35；
Gravity off-load component 3 is fixed on entirely through the another side of off-load bearing 35 on 2 flange face of mirror cell.
Gravity off-load component 3 at least there are three, be respectively placed in 2 above and below of mirror cell, wherein：The gravity of 2 lower section of mirror cell
3 numbers of off-load component and with gravity direction angle, need to be determined according to FEM mechanics analysis (known method) result：First according to warp
It tests, then the number and angle of initial setting up gravity off-load component do finite element analysis；Further according to the face shape situation of principal reflection mirror
Whether the number and angle for judging current gravity off-load component meet the requirements, if the face shape of principal reflection mirror meets design requirement,
Then illustrate that number and the angle of current gravity off-load component are feasible；If the face shape of principal reflection mirror is unsatisfactory for design requirement, repair
Change the number and angle of gravity off-load component, carry out FEM mechanics analysis again and judge, such iteration, until principal reflection mirror
Until face shape meets design requirement.The 2 symmetrical position in top respectively setting one of mirror cell, each gravity off-load component 3 and gravity
Orientation angle need to equally be determined according to FEM mechanics analysis result.Gravity off-load component 3 and the assembling of mirror cell in the present embodiment
(Fig. 3 is to embody the position of gravity off-load component 3 to relation, and regarding behind mirror cell is hidden in mapping software as shown in Figure 3
Figure).
First support component 4 includes top plate 41, chassis 42, nut 43, ball 44 and adjusting screw rod 45；42 1, chassis end
Mounting groove is offered in the middle part of face, one end of top plate 41 is embedded in the mounting groove on chassis 42, and the other end is anti-with being supported heavy caliber
Penetrate the back fitting of mirror 1；Mounting groove in the present embodiment on chassis 42 is the step circular groove being made of peripheral groove and interior circular groove,
In the peripheral groove on one end insertion chassis 42 of top plate 41；When top plate 41 and back of reflecting mirror plane are non-coplanar, due to top plate 41
Rigidity is poorer than principal reflection mirror, and top plate 41 can be deformed first, is the plastic deformation headspace for top plate 41 the purpose of circular groove in setting, makes
Top plate 41 and back of reflecting mirror are not rigid contacts, so as to reduce influence of the top plate 41 to reflecting mirror surface shape；
Circular groove is offered in the middle part of another end face on chassis 42, interior spiral shell is provided on the circular groove madial wall
Line, offers ball positioning groove 46 in the middle part of the circular groove bottom surface, ball positioning groove 46 can be v-depression, conical socket or
Arc groove；Ball 44 is embedded in the ball positioning groove 46 on chassis 42；
Adjusting screw rod 45 is screwed in the corresponding screw hole of 2 flange face of mirror cell, and its one end withstands ball 44；Preferably, spiral shell is adjusted
Bar 45 is T-shaped, and big end is head, and head end has the concave surface being adapted with ball 44, which withstands ball 44, to carry
High stability and reliability；External screw thread is offered on the lateral wall of nut 43, nut screws in the circular groove and its spiral shell on chassis 42
Line is connected, and the head of adjusting screw rod 45 and ball 44 are encapsulated in the circular groove on chassis 42；The axis of adjusting screw rod 45
Line is vertical with the end face on chassis 42.
Second support component 5 includes pull rod 51, cushion block 52, pedestal 53 and adjusting screw 54；Pedestal 53 is fixed on mirror cell 2
On, pull rod 51 is stretched into the through hole 21 in mirror cell 2 (can be rectangular opening), and adjusting screw 54 passes through the screw hole on pedestal 53,
It screws in pull rod 51, and cushion block 52 is pressed in mirror body groove 11 on the side wall of mirror cell 2.
Below in conjunction with Fig. 1, Fig. 4 and Fig. 5, illustrate the method for adjustment of above-mentioned large caliber reflecting mirror composite supporting structure：
Step 1：Mirror cell 2 is placed in horizontal level, by gravity off-load component 3, the first support component 4 and the second support component
After the completion of 5 each self-assembly, it is connected respectively with mirror cell 2；
Step 2：Large caliber reflecting mirror 1 will be supported to lift to mirror cell 2, the second support component 5 is set to mirror body groove
11 sides；
Step 3：Second support component 5 is packed into the through hole 21 of mirror cell 2, large caliber reflecting mirror 2 will be supported and slowly fallen
In the top plate 42 for entering the first support component 4；
Step 4：Gravity off-load component 3 is installed, all off-load disks 31 is made to be contacted with 11 bottom surface of mirror body groove；
Step 5：Three adjusting screws 54 are screwed in into the second support component 5, it is axial solid that large caliber reflecting mirror 1 will be supported
It is fixed；
Step 6：Large caliber reflecting mirror will be supported and composite supporting structure is integrally overturn, make to be supported large caliber reflecting mirror
Optical axis is horizontal；
Step 7：The face shape of large caliber reflecting mirror 1 is supported with interferometer monitoring, is adjusted according to wave aberration shape and position
The tune in 45 and second support component 5 of adjusting screw rod in off-load bearing 35, the first support component 4 in gravity off-load component 3
Screw 54 is saved, until the surface figure accuracy for being supported large caliber reflecting mirror meets design and matching requirements.
In order to reduce gravity off-load component 3, the first support component 4 and the second support component 5 during the adjustment with being propped up
The contact stress between large caliber reflecting mirror 1 is supportted, off-load disk 31, top plate 41 and cushion block 52 are using polytetrafluoroethylene (PTFE), polyimides
It is prepared by the nonmetallic materials for waiting damping and amortizations good.
Claims (8)
1. the composite supporting structure of large caliber reflecting mirror, including device part；Described device part includes mirror cell；Its feature exists
In：
Described device part further includes at least three gravity off-load components being fixedly connected with the mirror cell, three the first support groups
Part and three the second support components；
Gravity off-load component is respectively placed in mirror cell's above and below；The number of gravity off-load component below mirror cell and its with
The angle of gravity direction is determined according to FEM mechanics analysis result；There are two gravity off-load components above mirror cell,
The symmetrical position in mirror cell respectively sets one, is determined with the angle of gravity direction according to FEM mechanics analysis result；
Gravity off-load component includes off-load disk, off-load chassis, pressing plate, off-load screw rod and off-load bearing；The insertion of off-load disk one end is unloaded
In the mounting groove of lotus chassis one end, the off-load disk other end is mounted on the lateral surface for being supported large caliber reflecting mirror；Pressing plate is set in
Outside the bulb of off-load screw rod, the bulb of off-load screw rod is fixed in the groove of the off-load chassis other end；Off-load bearing is L-shaped branch
Seat, the afterbody of off-load screw rod are screwed in the off-load bearing wherein screw hole on one side；The another side of off-load bearing is fixed in mirror cell；
First support component and the second support component correspond, and form three top pull support components, three top pull support components
It is set along the distribution of large caliber reflecting mirror even circumferential is supported, realizes the axially position for being supported large caliber reflecting mirror, and wherein
One top pull support component is located at the surface of mirror cell；
First support component includes top plate, chassis, nut, ball and adjusting screw rod；One, chassis opens up mounting groove in the middle part of end face,
Circular groove is offered in the middle part of another end face, internal thread, circular groove bottom surface middle part are provided on circular groove madial wall
Offer ball positioning groove；In the mounting groove on one end insertion chassis of top plate, the other end and the back of the body for being supported large caliber reflecting mirror
Portion is bonded；In the ball positioning groove on ball insertion chassis；Adjusting screw rod is screwed in the screw hole in mirror cell, and its one end withstands the rolling
Pearl；External screw thread is offered on the lateral wall of nut, the circular groove that nut screws in chassis is threadedly coupled with it, by adjusting screw rod
One end and ball are encapsulated in the circular groove on chassis；
Second support component includes pull rod, cushion block, pedestal and adjusting screw；Pedestal is fixed in mirror cell, and pull rod is stretched into mirror cell
Through hole in, adjusting screw screws in pull rod through the screw hole on pedestal, and cushion block is pressed in and is supported large caliber reflecting mirror
Postnotum on.
2. the composite supporting structure of large caliber reflecting mirror according to claim 1, it is characterised in that：The adjusting screw rod top
Firmly there is the concave surface being adapted with ball on the end face of ball.
3. the composite supporting structure of large caliber reflecting mirror according to claim 2, it is characterised in that：The adjusting screw rod is
T-bar, big end is head, for withstanding the ball.
4. the composite supporting structure of large caliber reflecting mirror according to claim 3, it is characterised in that：Peace on the chassis
Tankage is the step circular groove being made of peripheral groove and interior circular groove, and one end of top plate is embedded in the peripheral groove.
5. according to the composite supporting structure of any large caliber reflecting mirrors of claim 1-4, it is characterised in that：The ball
Locating slot is v-depression, conical socket or arc groove.
6. according to the composite supporting structure of any large caliber reflecting mirrors of claim 1-4, it is characterised in that：The off-load
Disk, top plate and cushion block are made of the good nonmetallic materials of damping and amortization.
7. the composite supporting structure of large caliber reflecting mirror according to claim 6, it is characterised in that：The off-load disk, top
Disk and cushion block are made of polytetrafluoroethylene (PTFE) or polyimides.
8. according to the composite supporting structure of any large caliber reflecting mirrors of claim 1-4, it is characterised in that：Further include knot
Structure part, the structure division are to be opened in the annular mirror body groove for being supported large caliber reflecting mirror lateral surface, described device portion
Point the mirror body groove is mounted on, and after being hidden in and being supported large caliber reflecting mirror minute surface；
The depth and width and mirror body groove of the mirror body groove deviate from the thickness of minute surface one side postnotum, according to limited
First mechanical analysis result determines；
The gravity off-load component is arranged on mirror body groove, and the other end of off-load disk is embedded in the mirror body groove, with mirror
The slot bottom contact of body groove；
Second support component is arranged on mirror body groove, and cushion block is pressed in mirror body groove on the side wall of mirror cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721441354.5U CN207424357U (en) | 2017-11-01 | 2017-11-01 | Composite supporting structure of large-caliber reflector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721441354.5U CN207424357U (en) | 2017-11-01 | 2017-11-01 | Composite supporting structure of large-caliber reflector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207424357U true CN207424357U (en) | 2018-05-29 |
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ID=62306666
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721441354.5U Active CN207424357U (en) | 2017-11-01 | 2017-11-01 | Composite supporting structure of large-caliber reflector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107831584A (en) * | 2017-11-01 | 2018-03-23 | 中国科学院西安光学精密机械研究所 | Composite support structure, support and adjustment method of large-aperture reflector |
-
2017
- 2017-11-01 CN CN201721441354.5U patent/CN207424357U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107831584A (en) * | 2017-11-01 | 2018-03-23 | 中国科学院西安光学精密机械研究所 | Composite support structure, support and adjustment method of large-aperture reflector |
| CN107831584B (en) * | 2017-11-01 | 2022-10-04 | 中国科学院西安光学精密机械研究所 | Composite support structure, support and adjustment method of large-aperture reflector |
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