CN104570265A - Lightweight, simplified and high-stability primary and secondary lens component of coaxial camera and mounting method - Google Patents
Lightweight, simplified and high-stability primary and secondary lens component of coaxial camera and mounting method Download PDFInfo
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- CN104570265A CN104570265A CN201410797471.XA CN201410797471A CN104570265A CN 104570265 A CN104570265 A CN 104570265A CN 201410797471 A CN201410797471 A CN 201410797471A CN 104570265 A CN104570265 A CN 104570265A
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- nested
- primary
- secondary mirror
- metal
- mirror element
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 229910052751 metal Inorganic materials 0.000 claims abstract description 34
- 239000002184 metal Substances 0.000 claims abstract description 34
- 238000012545 processing Methods 0.000 claims abstract description 14
- 239000002131 composite material Substances 0.000 claims abstract description 12
- 238000009434 installation Methods 0.000 claims abstract description 11
- 230000003287 optical effect Effects 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 229910052799 carbon Inorganic materials 0.000 claims description 10
- 239000000835 fiber Substances 0.000 claims description 10
- 239000004918 carbon fiber reinforced polymer Substances 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 229910052738 indium Inorganic materials 0.000 claims description 5
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000012937 correction Methods 0.000 claims description 2
- 238000003754 machining Methods 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 7
- 229920000049 Carbon (fiber) Polymers 0.000 abstract description 4
- 239000004917 carbon fiber Substances 0.000 abstract description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 4
- 229910001069 Ti alloy Inorganic materials 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/021—Mountings, adjusting means, or light-tight connections, for optical elements for lenses for more than one lens
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/02—Bodies
- G03B17/12—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
Abstract
The invention provides a light-weight, simplified and high-stability primary and secondary mirror part of a coaxial camera, which comprises a bearing cylinder, a primary mirror part and a secondary mirror part of the coaxial camera, a metal nesting part, a nesting support part and a plurality of radial support rods, wherein the bearing cylinder is provided with a bearing hole; the bearing cylinder, the nested supporting piece and the plurality of radial supporting rods are carbon fiber composite material components; the nested support piece is of an annular structure and is coaxially arranged at the center of the front flange of the bearing cylinder through a plurality of radial support rods, and the metal nest is fixed in the nested support piece; the primary mirror part is arranged at the rear flange of the bearing cylinder, and the secondary mirror part is arranged in the metal nest. The integrated primary and secondary mirror high-precision design, processing and installation method avoids the design of a metal flange in the traditional scheme, and reduces the weight to half of the original scheme.
Description
Technical field
Patent of invention relates to a kind of with camera shaft primary and secondary mirror element and installation method, and the high precision between the primary and secondary mirror particularly relating to a kind of high lightweight, simplification, high-modulus, high stability installs method for supporting.
Background technology
The high resolution camera of development at present much adopts little relative aperture, long-focal distance optical system, the advantages such as the optical system of this version has compact conformation, and picture element is excellent both at home and abroad.But in this version optical system, miniature deformation between primary and secondary mirror, all can impact camera picture element.Carbon fibre composite, as the high specific stiffness between primary and secondary mirror, high thermal stability supporting construction, is applied very extensive in this type of camera.
The variable quantity of such camera rear cut-off distance is tens times of the primary and secondary mirror interval amount of changing, and therefore, for this type of camera, the impact of primary and secondary mirror interval variation focusing is very sensitive.Analyze after deliberation, degenerate in-orbit certain high resolution camera be exactly that distortion because original primary and secondary mirror support component carbon fibre composite loaded cylinder there occurs trace under space environment causes optimal focal plane position and moves backward by picture element, thus making focal plane out of focus, picture element declines gradually.
Therefore, the bearing structure between primary and secondary mirror not only wants lightweight, high-modulus, also will have the performance of high stable under space environment.External large-scale optics load has carried out a large amount of research work for the engineer applied of compound substance, improves constantly the stability of carbon fibre material.Along with the resolution requirement of camera is more and more higher, bore is increasing, camera lightweight ratio requires increasing, the novel carbon fiber composite of development high-modulus, high stability, high spatial environmental suitability is badly in need of in China.Simultaneously, at present when compound substance is applied in space camera, in order to improve surperficial face type and high-precision requirement, in design in the past, carbon fibre composite part and other part joint face fixedly mount specific stiffness preferably metal material flange especially, as titanium alloy, indium Steel material etc., density and the carbon fibre composite ratio of this bi-material, add about 2.8 times ~ 5 times.In order to avoid increasing metal flange on carbon fibre composite, under the prerequisite not having high-precision interface must be solved, by reducing error link, from the angle optimizing design scheme again of system.
Summary of the invention
Patent of the present invention relates to a kind of with camera shaft primary and secondary mirror element and installation method, and the present invention, by the version of integration, carrys out the method for processing equipment installed surface, solves original traditional scheme complexity high, the problem of Heavy Weight with optical reference.
Technical solution of the present invention is:
A kind of lightweight simplifies high stable with camera shaft primary and secondary mirror element, comprises loaded cylinder, with the primary mirror parts of camera shaft and secondary mirror element, its special character is: also comprise nested, the nested support member of metal and Duo Gen radial strut; Described loaded cylinder, nested support member, many radial strut are Carbon-fiber Reinforced Plastics Component; Described nested support member is circular ring, and it is coaxially arranged on loaded cylinder forward flange center by many radial strut, and described metal is nested to be fixed in described nested support member; Described primary mirror parts are arranged on the rear flange place of loaded cylinder, described mirror element be arranged on metal nested in.
Above-mentioned loaded cylinder, nested support member, many radial strut are integral type Carbon-fiber Reinforced Plastics Component.
Comprise one in above-mentioned metal is nested to repair and cut pad.
Above-mentioned metal is nested to be fixed by riveted joint or bonding way with Carbon-fiber Reinforced Plastics Component.
Above-mentioned metal is nested is indium Steel material.
The quantity of above-mentioned radial strut is 4.
This lightweight simplifies high stable with the installation method of camera shaft primary and secondary mirror element, comprises the following steps:
1) carbon fibre composite loaded cylinder, lens barrel, nested support member, many radial strut are processed;
2) the primary mirror parts after heart processing will be connected to the rear flange place of loaded cylinder parts;
3) with the optical axis of primary mirror for benchmark, the inner face that processing metal is nested successively and inner periphery side, ensure that time mounting limit face of mirror element and the right alignment of primary mirror optical axis are better than 0.02mm.
4) by the heart processing after secondary mirror element be installed on metal nested in;
5) revise primary mirror parts and secondary mirror component axial interval, complete the assembling of primary and secondary mirror.
Correction step in above-mentioned steps 5 is: cut mat thickness adjustment by repairing in secondary mirror element is nested with loaded cylinder and ensure that the interval error between primary and secondary mirror is better than 0.02mm.
Above-mentioned primary mirror parts, loaded cylinder parts, secondary mirror element three parts all 0.01mm is less than to heart machining precision.
Above-mentioned metal is nested to be fixed by riveted joint or bonding way with carbon fibre composite loaded cylinder.
Advantage of the present invention is:
1, the primary and secondary mirror high precision design processing installation method of integration, avoids the design of the metal flange in traditional scheme, weight is reduced to the half of original scheme;
2, improve overall precision, decrease assembling link, substantially increase assembly precision and efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of the loaded cylinder with carbon fiber composite structure part;
Fig. 2 is the nested structural representation of metal;
Fig. 3 has installed the nested and primary mirror parts of indium steel and has been about to install the loaded cylinder of time mirror element;
Fig. 4 is the structural representation of left side of the present invention.
In figure: 1-loaded cylinder parts; 2-metal is nested; 3-primary mirror parts; 4-mirror element; 5-radial strut; The nested support member of 6-; 7-repaiies and cuts pad.
Embodiment
As shown in Figure 1 and Figure 4, a kind of lightweight of the present invention simplifies high stable with camera shaft primary and secondary mirror element and installation method, comprise loaded cylinder parts 1, with the primary mirror parts 4 of camera shaft, secondary mirror element 5, also comprise metal nested 2, nested support member 6 and Duo Gen radial strut 5, the quantity of radial strut 5 is 4, metal nested 2 as shown in Figure 2, also comprise one to repair and cut pad 7, loaded cylinder parts 1, nested support member 6 and Duo Gen radial strut 5 are Carbon-fiber Reinforced Plastics Component, nested support member 6 is circular ring, it is coaxially arranged on loaded cylinder forward flange center by many radial strut 5, metal nested 2 is fixed in described nested support member 6, metal nested 2 can be that indium steel is nested.Metal nested 2 can be fixed by riveted joint or bonding way with nested support member 6.Remove the secondary microscope base of forward and backward, middle titanium alloy flange in original scheme and titanium alloy, be designed to full carbon fiber structural.
High precision (0.005mm) is ensured after loaded cylinder component processing in original design proposal, primary mirror parts, to heart processing, secondary mirror element two parts ensure that high precision (0.01mm) requires respectively after, ensure that axially spaced-apart between primary and secondary mirror optical element and coaxiality error require (these two key indexs require all for being better than 0.02mm) by debuging again, in the present invention, as shown in Figure 3, by the rear flange place by being connected to loaded cylinder parts 1 to the primary mirror parts 4 after heart processing, then utilize the optical axis of primary mirror for benchmark, the inner face of processing metal nested 2 and inner periphery side successively, this precision can meet the requirement being better than 0.02mm, thus ensure time mounting limit face of mirror element 5 and the coaxial of primary mirror optical axis, then will be installed in metal nested 2 to the secondary mirror element 5 after heart processing, only repaiied by the annular between adjustment time mirror element 5 nested with loaded cylinder metal 2 again and cut pad 7 thickness, revise axially spaced-apart, ensure that the interval error between primary and secondary mirror is better than 0.02mm, just can meet the matching requirements of high-precision primary and secondary mirror.
Claims (10)
1. lightweight simplifies high stable with a camera shaft primary and secondary mirror element, comprises loaded cylinder, with the primary mirror parts of camera shaft and secondary mirror element, it is characterized in that:
Also comprise nested, the nested support member of metal and Duo Gen radial strut;
Described loaded cylinder, nested support member, many radial strut are Carbon-fiber Reinforced Plastics Component;
Described nested support member is circular ring, and it is coaxially arranged on loaded cylinder forward flange center by many radial strut, and described metal is nested to be fixed in described nested support member;
Described primary mirror parts are arranged on the rear flange place of loaded cylinder, described mirror element be arranged on metal nested in.
2. lightweight according to claim 1 simplifies high stable with camera shaft primary and secondary mirror element, it is characterized in that:
Described loaded cylinder, nested support member, many radial strut are integral type Carbon-fiber Reinforced Plastics Component.
3. lightweight according to claim 1 and 2 simplifies high stable with camera shaft primary and secondary mirror element, it is characterized in that: comprise one in described metal is nested and repair and cut pad.
4. lightweight according to claim 3 simplifies high stable with camera shaft primary and secondary mirror element, it is characterized in that:
Described metal is nested to be fixed by riveted joint or bonding way with Carbon-fiber Reinforced Plastics Component.
5. lightweight according to claim 4 simplifies high stable with camera shaft primary and secondary mirror element, it is characterized in that:
Described metal is nested is indium Steel material.
6. lightweight according to claim 4 simplifies high stable with camera shaft primary and secondary mirror element, it is characterized in that:
The quantity of described radial strut is 4.
7. the lightweight described in claim 1 to 6 simplifies high stable with the installation method of camera shaft primary and secondary mirror element, it is characterized in that: comprise the following steps:
1) carbon fibre composite loaded cylinder, lens barrel, nested support member, many radial strut are processed;
2) the primary mirror parts after heart processing will be connected to the rear flange place of loaded cylinder parts;
3) with the optical axis of primary mirror for benchmark, the inner face that processing metal is nested successively and inner periphery side, ensure that time mounting limit face of mirror element and the right alignment of primary mirror optical axis are better than 0.02mm.
4) by the heart processing after secondary mirror element be installed on metal nested in;
5) revise primary mirror parts and secondary mirror component axial interval, complete the assembling of primary and secondary mirror.
8. installation method according to claim 7, is characterized in that:
Correction step in described step 5 is: cut mat thickness adjustment by repairing in secondary mirror element is nested with loaded cylinder and ensure that the interval error between primary and secondary mirror is better than 0.02mm.
9. installation method according to claim 7, is characterized in that:
Described primary mirror parts, loaded cylinder parts, secondary mirror element three parts all 0.01mm is less than to heart machining precision.
10. the installation method according to claim 7 or 8 or 9, is characterized in that:
Described metal is nested to be fixed by riveted joint or bonding way with carbon fibre composite loaded cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410797471.XA CN104570265B (en) | 2014-12-18 | 2014-12-18 | Lightweight, simplified and high-stability primary and secondary lens component of coaxial camera and mounting method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410797471.XA CN104570265B (en) | 2014-12-18 | 2014-12-18 | Lightweight, simplified and high-stability primary and secondary lens component of coaxial camera and mounting method |
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| Publication Number | Publication Date |
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| CN104570265A true CN104570265A (en) | 2015-04-29 |
| CN104570265B CN104570265B (en) | 2017-05-24 |
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| CN201410797471.XA Active CN104570265B (en) | 2014-12-18 | 2014-12-18 | Lightweight, simplified and high-stability primary and secondary lens component of coaxial camera and mounting method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109164568A (en) * | 2018-09-29 | 2019-01-08 | 中国科学院长春光学精密机械与物理研究所 | A kind of carbon fibre composite telescope |
| CN109387997A (en) * | 2017-08-04 | 2019-02-26 | 北京空间机电研究所 | A kind of high rigidity lightweight space camera lens barrel and its vibrostability test method |
| CN110395411A (en) * | 2019-08-13 | 2019-11-01 | 中国科学院微小卫星创新研究院 | A kind of low rail remote sensing micro-nano satellite and its Thermal design |
| CN110687932A (en) * | 2019-10-17 | 2020-01-14 | 中国科学院长春光学精密机械与物理研究所 | On-orbit adjustment method for secondary mirror of space optical remote sensor and space optical remote sensor |
| CN112731618A (en) * | 2021-01-15 | 2021-04-30 | 长光卫星技术有限公司 | Light-duty multi-functional secondary mirror bearing structure of integration suitable for space camera |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109387997A (en) * | 2017-08-04 | 2019-02-26 | 北京空间机电研究所 | A kind of high rigidity lightweight space camera lens barrel and its vibrostability test method |
| CN109387997B (en) * | 2017-08-04 | 2021-03-26 | 北京空间机电研究所 | High-rigidity light space camera lens barrel and anti-vibration stability testing method thereof |
| CN109164568A (en) * | 2018-09-29 | 2019-01-08 | 中国科学院长春光学精密机械与物理研究所 | A kind of carbon fibre composite telescope |
| CN109164568B (en) * | 2018-09-29 | 2020-05-15 | 中国科学院长春光学精密机械与物理研究所 | Carbon fiber composite telescope |
| CN110395411A (en) * | 2019-08-13 | 2019-11-01 | 中国科学院微小卫星创新研究院 | A kind of low rail remote sensing micro-nano satellite and its Thermal design |
| CN110687932A (en) * | 2019-10-17 | 2020-01-14 | 中国科学院长春光学精密机械与物理研究所 | On-orbit adjustment method for secondary mirror of space optical remote sensor and space optical remote sensor |
| CN112731618A (en) * | 2021-01-15 | 2021-04-30 | 长光卫星技术有限公司 | Light-duty multi-functional secondary mirror bearing structure of integration suitable for space camera |
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| CN104570265B (en) | 2017-05-24 |
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