CN116699927A - Remote sensing camera with integrated silicon carbide main mirror and substrate - Google Patents
Remote sensing camera with integrated silicon carbide main mirror and substrate Download PDFInfo
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- CN116699927A CN116699927A CN202310980447.9A CN202310980447A CN116699927A CN 116699927 A CN116699927 A CN 116699927A CN 202310980447 A CN202310980447 A CN 202310980447A CN 116699927 A CN116699927 A CN 116699927A
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- 239000000758 substrate Substances 0.000 title claims abstract description 72
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 229910010271 silicon carbide Inorganic materials 0.000 title claims abstract description 40
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 8
- 230000010354 integration Effects 0.000 claims abstract description 6
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 5
- 239000004917 carbon fiber Substances 0.000 claims abstract description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 5
- 230000000903 blocking effect Effects 0.000 claims description 13
- 230000003014 reinforcing effect Effects 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 8
- 229910003460 diamond Inorganic materials 0.000 claims description 6
- 239000010432 diamond Substances 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 6
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 4
- 229920006335 epoxy glue Polymers 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 239000013585 weight reducing agent Substances 0.000 claims 1
- 238000003384 imaging method Methods 0.000 abstract description 7
- 238000000465 moulding Methods 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Lens Barrels (AREA)
Abstract
The application discloses a remote sensing camera with an integrated silicon carbide main mirror and a substrate. The main mirror body and the back plate are of an integrated silicon carbide structure, the focal plane component is used for collecting and transmitting images to the ground through photoelectric conversion, and the correction mirror component is mainly used for enlarging an imaging view field. The secondary mirror assembly comprises a secondary mirror, a mandrel, a back plate, a cover plate and a second light shield. The second light shield is a barrel-shaped structure made of carbon fiber or aluminum alloy and is used for intercepting stray light on the mirror surface of the main mirror; the technical scheme is characterized in that the main mirror and the backboard adopt a silicon carbide integrated molding scheme, so that on one hand, the adjustment alignment precision of the main mirror is improved, and the internal stress introduced by the integration of the main mirror is avoided; on the other hand, the surface shape precision of the main mirror is improved, so that the imaging quality of the remote sensing camera is improved. And a supporting structure is not arranged between the main mirror body and the back plate, so that the quality of the whole machine is reduced.
Description
Technical Field
The application relates to the technical field of space remote sensing, in particular to a remote sensing camera with a silicon carbide main mirror and a substrate integrated.
Background
The silicon carbide ceramic material has excellent mechanical properties, such as high specific stiffness, good thermal stability and the like. Silicon carbide materials are advantageous in space remote sensing camera applications over conventional metallic materials. However, the space remote sensing camera has high requirements on the installation and surface shape accuracy of the main mirror, and has strict overall quality limitation on the camera. How to balance the contradiction between the quality and the precision of the main mirror assembly brings a certain challenge to designers, and limits the application of silicon carbide in a space optical system.
In the prior art, the primary mirror and the substrate are typically designed separately and of different materials. The main mirror is usually made of silicon carbide or microcrystalline glass. And the back plate is made of titanium alloy or aluminum-based high-volume fraction and the like. Due to the difference in materials of the primary mirror and the substrate, in order to reduce the influence of the thermal expansion coefficient of the substrate on the primary mirror, the primary mirror and the substrate are usually connected by an additional support or a mandrel. It is clear that the weight of the main mirror assembly is further increased.
Based on the technical problems, the person skilled in the art is urgent to develop a remote sensing camera with integrated silicon carbide main mirror and substrate, so that on one hand, the adjustment alignment precision of the main mirror is improved, and the internal stress introduced by the integration of the main mirror is avoided; on the other hand, the surface shape precision of the main mirror is improved, so that the imaging quality of the remote sensing camera is improved. In addition, there is not bearing structure between main mirror body and the backplate, has reduced the quality of complete machine.
Disclosure of Invention
The application aims to provide a remote sensing camera with integrated silicon carbide main mirror and substrate, which improves the alignment accuracy of the main mirror on one hand and avoids the internal stress introduced by the integration of the main mirror; on the other hand, the surface shape precision of the main mirror is improved, so that the imaging quality of the remote sensing camera is improved. In addition, there is not bearing structure between main mirror body and the backplate, has reduced the quality of complete machine.
In order to achieve the above object, the present application provides the following technical solutions:
the application relates to a remote sensing camera with integrated silicon carbide main mirror and substrate, which comprises:
the main mirror comprises a main mirror body, and the lower end of the main mirror body is connected with an integrated main mirror substrate;
the support leg comprises an A-shaped support, wherein the A-shaped support consists of a double-shaft flexible plate spring and a connecting rod;
the focal plane assembly comprises a heat insulation pad which is connected with the frame through a threaded hole; the focusing mechanism is arranged at the rear end of the frame;
the remote sensing camera further includes:
the correcting lens assembly comprises a group of a plurality of lenses, and the lenses are arranged in the lens barrel and are arranged at intervals in the height direction;
the secondary mirror assembly comprises a secondary mirror, and the secondary mirror center hole is fixedly bonded with the taper sleeve through epoxy glue;
the taper sleeve is fixed below the secondary mirror substrate;
the cover plate and the second light shield are fixed above the secondary mirror substrate;
the first light shield comprises a light blocking ring, and the position of the light blocking ring is determined according to the preset trend of light rays;
the light blocking ring is positioned on the inner side surface of the light blocking cylinder;
the outer side surface of the shading cylinder is fixed by a first reinforcing rib, and the lower end of the shading cylinder is provided with a flange;
the truss assembly comprises truss rings, three embedded parts are arranged on the end faces of the same side of the truss rings, and a truss rod is arranged at the end part of each embedded part; and the tail end of the truss rod is provided with a secondary mirror embedded part.
Further, the back of the main mirror body is formed with:
the second reinforcing ribs, the lightweight holes, the upper end flanges and the middle are provided with mandrels;
the upper end face of the main mirror substrate is provided with:
the substrate is provided with a light weight hole, a substrate flanging and a truss mounting hole;
the lower end face of the main mirror substrate is formed with:
the support leg mounting hole, the focal plane mounting hole, the correcting mirror mounting hole and the lower end flanging; and a prism mounting hole formed at a side of the main mirror substrate.
Further, the lightweight hole is one of triangular, rectangular, diamond or hexagonal in shape.
Further, the shape of the substrate lightweight hole is one of triangle, rectangle, diamond or hexagon.
Further, the shape of the main mirror substrate is one of triangle, rectangle, diamond or hexagon.
Further, the A-shaped bracket comprises a left branch chain and a right branch chain which are symmetrical;
each of the branches includes an X-axis leaf spring a and an X-axis leaf spring b having a rotation axis along the X-axis, and a Y-axis leaf spring a and a Y-axis leaf spring b having a rotation axis along the Y-axis are connected in series between the X-axis leaf spring a and the X-axis leaf spring b.
Further, the cutout form of the leaf spring hinge in the leg is one of rectangular, circular, or parabolic.
Further, the focusing mechanism comprises a pushing detector, the pushing detector and the processing circuit move along a preset optical axis to focus, and the focusing mechanism adopts a turbine-worm type or cam type.
Further, each lens is fixed through a lens seat and a pressing ring;
the upper end of the lens barrel is connected with the third light shield through a connecting screw sleeve;
the lower end of the lens barrel is connected with the main lens substrate through a gasket;
the lens is installed and adjusted in the following way: a centering turning mode or a centering assembling and adjusting mode;
the lens base, the pressing ring and the lens cone are made of aviation aluminum alloy or titanium alloy.
Further, the truss ring is made of carbon fiber or aluminum alloy;
the embedded part and the secondary mirror embedded part are provided with embedded part light weight holes;
the truss rod is of a rectangular or circular tubular structure, and the interior of the truss rod is of a hollow structure;
the truss rods and the truss rings are made of the same material.
In the technical scheme, the remote sensing camera with the integrated silicon carbide main mirror and substrate has the following beneficial effects:
the application relates to a remote sensing camera with an integrated silicon carbide main mirror and a substrate, which is characterized in that the main mirror and a back plate adopt a silicon carbide integrated molding scheme, so that on one hand, the adjustment alignment precision of the main mirror is improved, and the internal stress introduced by the integration of the main mirror is avoided; on the other hand, the surface shape precision of the main mirror is improved, so that the imaging quality of the remote sensing camera is improved. In addition, a supporting structure is not arranged between the main mirror body and the backboard, so that the quality of the whole machine is reduced;
in addition, in the technical scheme, the main mirror body and the main mirror substrate are made of the same material in an integrated mode, instead of being manufactured separately, and then are assembled, so that the expansion direction is consistent with the contraction direction, and the main mirror surface shape is not degraded due to shrinkage in the glue curing process; and the bonding stress and the optical axis alignment error introduced in the bonding process are eliminated.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present application, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
Fig. 1 is a schematic diagram of a remote sensing camera with integrated silicon carbide main mirror and substrate according to an embodiment of the present application;
fig. 2 is a schematic diagram of a main mirror of a remote sensing camera with integrated silicon carbide main mirror and substrate according to an embodiment of the present application;
fig. 3 is a schematic view of a main mirror body of a remote sensing camera with a silicon carbide main mirror and a substrate integrated together according to an embodiment of the present application;
fig. 4 is a schematic diagram of an upper end face of a main mirror body of a remote sensing camera with a silicon carbide main mirror and a substrate integrated together according to an embodiment of the present application;
fig. 5 is a schematic diagram of a lower end surface of a main mirror body of a remote sensing camera with a silicon carbide main mirror and a substrate integrated together according to an embodiment of the present application;
fig. 6 is a schematic diagram of a remote sensing camera leg with integrated silicon carbide main mirror and substrate according to an embodiment of the present application;
fig. 7 is a schematic diagram of a focal plane assembly of a remote sensing camera with a silicon carbide main mirror and a substrate integrated together according to an embodiment of the present application;
FIG. 8 is a schematic diagram of a remote sensing camera calibration mirror assembly with a silicon carbide primary mirror and a substrate integrated together according to an embodiment of the present application;
FIG. 9 is a schematic diagram of a secondary mirror assembly of a remote sensing camera with a silicon carbide primary mirror and a substrate integrated together according to an embodiment of the present application;
fig. 10 is a schematic view of a first mask of a remote sensing camera with a silicon carbide main mirror and a substrate integrated together according to an embodiment of the present application;
fig. 11 is a schematic diagram of a truss assembly of a remote sensing camera with integrated silicon carbide main mirror and substrate according to an embodiment of the present application.
Reference numerals illustrate:
1. a primary mirror; 2. a support leg; 3. a focal plane assembly; 4. a correction mirror assembly; 5. a secondary mirror assembly; 6. a first shade; 7. a truss assembly;
11. a main mirror body;
111. a mirror surface; 112. a second reinforcing rib; 113. a lightweight hole; 114. flanging; 115. a mandrel;
12. a main mirror substrate;
121. a substrate light weight hole; 122. flanging; 123. truss mounting holes; 124. a prism mounting hole; 125. a leg mounting hole; 126. a focal plane mounting hole; 127. correcting the mirror mounting hole; 128 flanging;
21. a main mirror mounting hole; 22. satellite mounting holes; 23. an X-axis plate spring a; 24. an X-axis plate spring b; 25. a Y-axis plate spring a; 26. a Y-axis plate spring b;
31. a heat insulating mat; 32. a frame; 33. a focusing mechanism; 34. a detector; 35. a processing circuit;
41. a lens; 42. a lens barrel; 43. a gasket; 44. a lens base; 45. a pressing ring; 46. connecting a screw sleeve; 47. a third light shield;
51. a secondary mirror; 52. a taper sleeve; 53. a sub-mirror substrate; 54. a cover plate; 55. a second light shield;
61. a light blocking ring; 62. a first reinforcing rib; 63. a light shielding cylinder; 64. a flange;
71. a truss ring; 72. a buried piece; 73. a secondary mirror embedded part; 74. truss rods.
Detailed Description
In order to make the technical scheme of the present application better understood by those skilled in the art, the present application will be further described in detail with reference to the accompanying drawings.
See fig. 1-11;
the application relates to a remote sensing camera with integrated silicon carbide main mirror and substrate, which comprises:
the main mirror 1, the main mirror 1 comprises a main mirror body 11, and the lower end of the main mirror body 11 is connected with an integrated main mirror substrate 12;
the remote sensing camera further includes: the support leg 2 comprises an A-shaped support, wherein the A-shaped support consists of a double-shaft flexible plate spring and a connecting rod; focal plane assembly 3, comprising: a heat insulating pad 31 connected to the frame 32 through screw holes; a focusing mechanism 33 mounted at the rear end of the 1 frame 32; the correction mirror assembly 4 includes a group of a plurality of lenses 41, the plurality of lenses 41 being arranged in a lens barrel 42 and arranged at intervals in the height direction;
the secondary mirror assembly 5 comprises a secondary mirror 51, and a central hole of the secondary mirror 51 is fixedly bonded with the taper sleeve 52 through epoxy glue; the taper sleeve 52 is fixed below the secondary mirror substrate 53; the cover plate 54 and the second light shield 55 are fixed above the sub-mirror substrate 53;
the first light shield 6 comprises a light blocking ring 61, and the position of the light blocking ring 61 is determined according to the preset trend of the light rays; the light blocking ring 61 is positioned on the inner side surface of the light blocking cylinder 63; the outer side surface of the shading cylinder 63 is fixed by a first reinforcing rib 62, and the lower end of the shading cylinder 63 is provided with a flange 64;
the truss assembly 7 comprises truss rings 71, three embedded pieces 72 are arranged on the same side end face of the truss rings, and a truss rod 74 is arranged at the end part of each embedded piece 72; the secondary mirror buries 73 are mounted at the ends of the truss arms 74.
Referring to fig. 1 to 11, the back of the main mirror body 11 is formed with: a second reinforcing rib 112, a lightweight hole 113, an upper end flange 114 and a central spindle 115; the upper end surface of the main mirror substrate 12 is formed with:
a base plate weight-reducing hole 121, a base plate flange 122, and a truss mounting hole 123; the lower end surface of the main mirror substrate 12 is formed with:
leg mounting holes 125, focal plane mounting holes 126, correction mirror mounting holes 127, and lower end flanges 128; and a prism mounting hole 124 formed at a side of the main mirror substrate 12.
Referring to fig. 1-11, the lightweight aperture 113 is one of triangular, rectangular, diamond-shaped, or hexagonal in shape.
Referring to fig. 1 to 11, the substrate weight-reducing hole 121 has one of a triangle, a rectangle, a diamond, or a hexagon.
Referring to fig. 1-11, the primary mirror substrate 12 is one of triangular, rectangular, diamond-shaped, or hexagonal in shape.
Referring to fig. 1-11, the a-shaped bracket comprises a left side and a right side symmetrical branched chains;
each of the branches includes an X-axis leaf spring a23 and an X-axis leaf spring b24 whose rotation axes are along the X-axis, and a Y-axis leaf spring a25 and a Y-axis leaf spring b26 whose rotation axes are along the Y-axis are connected in series between the X-axis leaf spring a23 and the X-axis leaf spring b 24.
Referring to fig. 1-11, the slit of the leaf spring hinge in leg 2 is one of rectangular, circular or parabolic.
Referring to fig. 1 to 11, the focusing mechanism 33 includes: pushing the detector 34; the pushing detector 34 and the processing circuit 35 move along a preset optical axis to focus; the focusing mechanism 33 takes the form of a worm gear-worm or cam.
Referring to fig. 1 to 11, each lens 41 is fixed by a lens holder 44 and a pressing ring 45; the upper end of the lens barrel 42 is connected with a third shade 47 through a connecting screw 46; the lower end of the lens barrel 42 is connected with the main lens substrate 12 through a gasket 43; the lens 41 is mounted in the following manner: a centering turning mode or a centering assembling and adjusting mode; the lens base 44, the pressing ring 45 and the lens barrel 42 are made of aviation aluminum alloy or titanium alloy.
Referring to fig. 1 to 11, the truss ring 71 is made of carbon fiber or aluminum alloy; the embedded part 72 and the secondary mirror embedded part 73 are provided with embedded part light weight holes; the truss rod 74 is of a rectangular or circular tubular structure, and the interior of the truss rod 74 is of a hollow structure; the truss arms 74 are of the same material as the truss rings 71.
The application discloses a remote sensing camera with integrated silicon carbide main mirror and substrate, comprising: the device comprises a main mirror, a supporting leg, a focal plane assembly, a correction mirror assembly, a secondary mirror assembly, a first light shield and a truss assembly.
The mirror body and the backboard of the main mirror are of an integrated silicon carbide structure, and light weight holes and second reinforcing ribs are formed in the mirror body and the backboard. The support leg is an A-shaped support and consists of a double-shaft flexible plate spring and a connecting rod. The focal plane assembly comprises a heat insulation pad, a frame, a focusing mechanism, a detector and a processing circuit. The function is to collect and transmit images to the ground through photoelectric conversion. The correcting lens assembly comprises a lens, a lens cone, a gasket, a lens base, a pressing ring, a third light shield and connecting threads. Its main function is to enlarge the imaging field of view. The secondary mirror assembly comprises a secondary mirror, a mandrel, a back plate, a cover plate and a second light shield. The second light shield is a barrel-shaped structure made of carbon fiber or aluminum alloy. The inner side of the light-blocking ring is provided with a light-blocking ring, and the outer side of the light-blocking ring is provided with a first reinforcing rib. The function is to intercept stray light on the primary mirror surface. The truss assembly comprises a truss ring, an embedded part, a secondary mirror embedded part and a truss rod, and the truss assembly is used for fixing the secondary mirror assembly.
In the technical scheme, the remote sensing camera with the integrated silicon carbide main mirror and substrate has the following beneficial effects:
the application relates to a remote sensing camera with an integrated silicon carbide main mirror and a substrate, which is characterized in that the main mirror and a back plate adopt a silicon carbide integrated molding scheme, so that on one hand, the adjustment alignment precision of the main mirror is improved, and the internal stress introduced by the integration of the main mirror is avoided; on the other hand, the surface shape precision of the main mirror is improved, so that the imaging quality of the remote sensing camera is improved. In addition, a supporting structure is not arranged between the main mirror body and the backboard, so that the quality of the whole machine is reduced;
in addition, in the technical scheme, the main mirror body and the main mirror substrate are made of the same material in an integrated mode, instead of being manufactured separately, and then are assembled, so that the expansion direction is consistent with the contraction direction, and the main mirror surface shape is not degraded due to shrinkage in the glue curing process; and the bonding stress and the optical axis alignment error introduced in the bonding process are eliminated.
While certain exemplary embodiments of the present application have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the application. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the application, which is defined by the appended claims.
Claims (10)
1. The utility model provides a remote sensing camera of carborundum principal mirror and base plate integration which characterized in that, this remote sensing camera includes:
the main mirror (1), wherein the main mirror (1) comprises a main mirror body (11), and the lower end of the main mirror body (11) is connected with an integrated main mirror substrate (12);
the support leg (2) comprises an A-shaped support, and the A-shaped support is composed of a double-shaft flexible plate spring and a connecting rod;
a focal plane assembly (3) comprising a heat insulation pad (31) connected to a frame (32) by threaded holes; a focusing mechanism (33) which is arranged at the rear end of the 1 frame (32);
the remote sensing camera further includes:
a correction mirror assembly (4) including a group of a plurality of lenses (41), the plurality of lenses (41) being arranged in a lens barrel (42) and arranged at intervals in a height direction;
the secondary mirror assembly (5) comprises a secondary mirror (51), and a central hole of the secondary mirror (51) is fixedly bonded with the taper sleeve (52) through epoxy glue;
the taper sleeve (52) is fixed below the secondary mirror substrate (53);
a cover plate (54) and a second light shield (55) are fixed above the secondary mirror substrate (53);
the first light shield (6) comprises a light blocking ring (61), and the position of the light blocking ring (61) is determined according to the preset trend of light rays;
the light blocking ring (61) is positioned on the inner side surface of the light blocking barrel (63);
the outer side surface of the shading cylinder (63) is fixed by a first reinforcing rib (62), and a flange (64) is arranged at the lower end of the shading cylinder (63);
the truss assembly (7) comprises truss rings (71), three embedded pieces (72) are arranged on the same side end face of the truss rings, and a truss rod (74) is arranged at the end part of each embedded piece (72); the secondary mirror embedded part (73) is arranged at the tail end of the truss rod (74).
2. The remote sensing camera integrated with a silicon carbide main mirror and a substrate according to claim 1, wherein the back of the main mirror body (11) is formed with:
the second reinforcing rib (112), the lightweight hole (113), the upper end flanging (114) and the middle core shaft (115) are arranged;
the upper end surface of the main mirror substrate (12) is formed with:
a substrate weight reduction hole (121), a substrate flange (122) and a truss mounting hole (123);
the lower end surface of the main mirror substrate (12) is formed with:
the support leg mounting hole (125), the focal plane mounting hole (126), the correction mirror mounting hole (127) and the lower end flanging (128); and a prism mounting hole (124) formed in a side surface of the main mirror substrate (12).
3. The integrated silicon carbide primary mirror and substrate remote sensing camera of claim 2, wherein the lightweight aperture (113) is one of triangular, rectangular, diamond-shaped, or hexagonal in shape.
4. The integrated silicon carbide primary mirror and substrate remote sensing camera of claim 2, wherein the substrate lightweight aperture (121) is one of triangular, rectangular, diamond or hexagonal in shape.
5. The silicon carbide primary mirror and substrate integrated remote sensing camera of claim 2, wherein the primary mirror substrate (12) is one of triangular, rectangular, diamond or hexagonal in shape.
6. The integrated remote sensing camera of claim 1, wherein the a-shaped bracket comprises two symmetrical branches;
each branch chain comprises an X-axis plate spring a (23) and an X-axis plate spring b (24) with the rotating shaft along the X-axis, and a Y-axis plate spring a (25) and a Y-axis plate spring b (26) with the rotating shaft along the Y-axis are connected in series between the X-axis plate spring a (23) and the X-axis plate spring b (24).
7. The integrated silicon carbide primary mirror and substrate remote sensing camera of claim 6, wherein the cutout of the leaf spring hinge in the leg (2) is one of rectangular, circular, or parabolic.
8. A remote sensing camera integrated with a silicon carbide main mirror and a substrate according to claim 1, wherein the focusing mechanism (33) comprises a pushing detector (34), the pushing detector (34) and a processing circuit (35) move in focus along a preset optical axis, and the focusing mechanism (33) takes the form of a turbine-worm or a cam.
9. A silicon carbide primary mirror and substrate integrated remote sensing camera according to claim 1, wherein each lens (41) is fixed by a lens mount (44) and a clamping ring (45);
the upper end of the lens barrel (42) is connected with a third shading cover (47) through a connecting screw sleeve (46);
the lower end of the lens barrel (42) is connected with the main lens substrate (12) through a gasket (43);
the lens (41) is arranged in the following manner: a centering turning mode or a centering assembling and adjusting mode;
the lens base (44), the pressing ring (45) and the lens cone (42) are made of aviation aluminum alloy or titanium alloy.
10. The remote sensing camera integrated with the silicon carbide main mirror and the substrate according to claim 1, wherein the truss ring (71) is made of carbon fiber or aluminum alloy;
the embedded parts (72) and the secondary mirror embedded parts (73) are provided with embedded part light weight holes;
the truss rod (74) is of a rectangular or circular tubular structure, and the interior of the truss rod (74) is of a hollow structure;
the truss rods (74) are made of the same material as the truss rings (71).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202310980447.9A CN116699927B (en) | 2023-08-07 | 2023-08-07 | Remote sensing camera with integrated silicon carbide main mirror and substrate |
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| CN202310980447.9A CN116699927B (en) | 2023-08-07 | 2023-08-07 | Remote sensing camera with integrated silicon carbide main mirror and substrate |
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| CN116699927B CN116699927B (en) | 2023-11-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117724218A (en) * | 2024-02-18 | 2024-03-19 | 中国科学院长春光学精密机械与物理研究所 | Thermally stable camera structure |
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| CN102662232A (en) * | 2012-03-09 | 2012-09-12 | 中国科学院长春光学精密机械与物理研究所 | Novel power-driven protective cover for primary mirror of large aperture telescope |
| US20160147039A1 (en) * | 2014-11-20 | 2016-05-26 | Raytheon Corporation | Secondary mirror positioning mechanism |
| CN104635317A (en) * | 2015-02-11 | 2015-05-20 | 中国科学院长春光学精密机械与物理研究所 | Light coaxial three-reflector spatial optical remote sensor structure |
| KR20180011491A (en) * | 2016-07-25 | 2018-02-02 | 주식회사 유투에스알 | Spotter lens assembly |
| CN114325906A (en) * | 2021-12-28 | 2022-04-12 | 中国科学院长春光学精密机械与物理研究所 | Integrated secondary mirror assembly and manufacturing method thereof |
| CN115826186A (en) * | 2022-11-18 | 2023-03-21 | 长春通视光电技术有限公司 | Two-reflecting-surface integrated reflector and coaxial four-reflecting optical system applying same |
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| CN117724218A (en) * | 2024-02-18 | 2024-03-19 | 中国科学院长春光学精密机械与物理研究所 | Thermally stable camera structure |
| CN117724218B (en) * | 2024-02-18 | 2024-04-26 | 中国科学院长春光学精密机械与物理研究所 | Thermally stable camera structure |
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