CN105607216A - Large-size and high specific stiffness truss off-axis three-reflection optical system main support structure - Google Patents
Large-size and high specific stiffness truss off-axis three-reflection optical system main support structure Download PDFInfo
- Publication number
- CN105607216A CN105607216A CN201511017764.2A CN201511017764A CN105607216A CN 105607216 A CN105607216 A CN 105607216A CN 201511017764 A CN201511017764 A CN 201511017764A CN 105607216 A CN105607216 A CN 105607216A
- Authority
- CN
- China
- Prior art keywords
- truss
- type
- joint
- mirror
- high specific
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
- G02B7/182—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Telescopes (AREA)
Abstract
The present invention relates to a large-size and high specific stiffness truss off-axis three-reflection optical system main support structure which mainly comprises a, front plate, a first A-type truss, a second A-type truss, a third A-type truss, a fourth A-type truss, a fifth, A-type truss, a sixth A-type truss, a seventh A-type truss, and a back plate. The technical point is that the seven groups of A-type trusses are combined to the front plate and the back plate through the mode of a threaded connection. Each of the A-type truss comprises an A-type joint, a truss rod, and an I-type joint. The truss rod and the joint are combined together through the mode of glue connection, the mode of glue connection is a sleeve mode, the joint is outside, and the truss rod is inside. The A-type joint is fixed on the front plate, and the I-type joint is fixed at the back plate. The large-size and high specific stiffness truss off-axis three-reflection optical system main support structure has the advantages of compact structure, easy formation of each structure member, easy assembly of a main support structure and a high specific stiffness and can satisfy the use requirement of a large size off-axis three-reflection optical system. The main support structure can be used in the field of large space sensors, space-based telescopes and the like.
Description
Technical field
The invention belongs to space optical remote field, relate to a kind of large scale high specific stiffness truss-like anti-from axle threeOptical system main supporting structure.
Background technology
, compact conformation, easily simultaneously real high without central obscuration, transfer function because having from axle three reflecting optical systemsNow the advantage such as large visual field and high-resolution, obtains a wide range of applications in space optical remote field. At present,Conventionally adopt cast-in-block thin wall cylinder structure from axle three reflecting optical system main supporting structures, as shown in Figure 1,Its material is generally the materials such as cast titanium alloy, invar, boron aluminium alloy. In the time that remote sensor size is larger, entiretyThe thin wall cylinder structure of casting cannot meet instructions for use. This structure has following shortcoming:
1) specific stiffness is low. The density of material such as cast titanium alloy are larger, and elastic modelling quantity is lower, cause thin wall cylinder structurePart specific stiffness is lower, and weight and rigidity are difficult to meet design requirement simultaneously.
2) moulding difficulty is large. Adopt cast-in-block thin wall cylinder supporting construction, generally by die casting and molding,From the anti-Space Remote Sensors complex structure of axle three, as adopted thin wall cylinder structure, design, the processing of mould existDifficulty, and thin-wall construction part is greatly prone to the casting flaws such as cob webbing, buckling deformation, cold shut, crackle,Yield rate is low. And be subject to the restriction of current domestic casting ability, be difficult to realize the whole of large size, thin walled barrel structureBody casting, therefore the supporting construction of thin-walled cartridge type also just cannot meet the instructions for use of large scale optical system.
Summary of the invention
The present invention will solve technical problem of the prior art, provide a kind of large scale high specific stiffness truss-like fromAxle three reflecting optical system main supporting structures.
In order to solve the problems of the technologies described above, technical scheme of the present invention is specific as follows:
A kind of large scale high specific stiffness truss-like, from axle three reflecting optical system main supporting structures, comprising:
Header board, an A type truss, the 2nd A type truss, the 3rd A type truss, the 4th A type truss, the 5th AType truss, the 6th A type truss, the 7th A type truss and rear plate;
Mode and header board, rear plate that the described first to the 7th A type truss is threaded connection are respectively combined in oneRise; Wherein, an A type truss and the 7th A type truss are symmetrically distributed in the main supporting structure left and right sides; SecondA type truss and the 6th A type truss are symmetrically distributed in the main supporting structure left and right sides; The 3rd A type truss and the 5th AType truss is symmetrically distributed in the main supporting structure left and right sides; The 4th A type truss is distributed in main supporting structure top;
Described header board comprises: the refrative mirror installation base of refrative mirror installing space, secondary mirror installing space, a side,Secondary mirror installation base, and multiple A type jiont treatment boss of opposite side; Refrative mirror installation base is arranged onRefrative mirror installing space periphery; Secondary mirror installation base is arranged on secondary mirror installing space periphery;
Described rear plate comprises: focal plane subassembly installing space, three mirror installing spaces, primary mirror installing space; One sideI type jiont treatment boss and focal plane subassembly installation base, three mirror installation bases, the primary mirror of an other sideInstallation base;
Primary mirror assembly is fixed on the primary mirror installation base of rear plate, and inferior mirror assembly is fixed on the secondary mirror of header board and installsOn boss, three mirror assemblies are fixed on three mirror installation bases of rear plate, and refrative mirror assembly is fixed on the folding of header boardOn folded mirror installation base, CCD focal plane subassembly is fixed on the focal plane subassembly installation base of rear plate.
In technique scheme, the described first to the 7th A type truss comprises respectively: A type joint, trussBar, I type joint;
Described truss rod two ends are combined with A type joint and I type junction respectively by the mode of glueing joint,The form of glueing joint is socket, and outside, truss rod is interior for joint; A type joint is fixed on by screw and pinOn header board, I type joint is fixed on rear plate by screw and pin.
In technique scheme, described A type joint comprises: two truss rod sleeves arranged side by side, which is provided withMultiple hole for injecting glue; The connecting plate of two truss rod sleeves is provided with screw mounting hole and pin hole.
In technique scheme, described I type joint comprises: truss rod sleeve; Which is provided with multiple hole for injecting glue;Truss rod sleeve bottom is provided with multiple screw mounting holes and pin hole.
In technique scheme, the material of described truss rod is carbon fibre composite.
In technique scheme, all optical elements and CCD focal plane subassembly all adopt embedded installation.
In technique scheme, front plate material is ZTC4; A type joint material is TC4; Truss rod material isM55J; I type joint material is TC4; Rear plate material is ZTC4.
The present invention has following beneficial effect:
Large scale high specific stiffness truss-like of the present invention, from axle three reflecting optical system main supporting structures, adopts trussFormula structure replaces traditional thin wall cylinder structure, has solved the support problem of large scale from axle three reflecting optical systems.Compared with thin wall cylinder structure, the present invention has compact conformation, be easy to assembling, specific stiffness is high, dimensional stabilityThe advantage such as good, not only can meet from the instructions for use of the anti-large scale optical system of axle three, has also saved opticsThe weight of camera lens, has saved launch cost.
The present invention can be used for the field such as large space optical sensor, space-based telescope.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Fig. 1 is thin-walled cartridge type main supporting structure schematic diagram.
Fig. 2 is truss-like main supporting structure schematic diagram.
Fig. 3 is header board schematic diagram, be followed successively by from left to right main look, side-looking and rearview.
Fig. 4 is an A type truss schematic diagram.
Fig. 5 is A type joint schematic diagram.
Fig. 6 is I type joint schematic diagram.
Fig. 7 is that truss rod and joint glued joint schematic diagram.
Fig. 8 is rear plate schematic diagram, be followed successively by from left to right main look, side-looking and rearview.
Fig. 9 is the schematic diagram that optical element and focal plane subassembly are installed on truss-like main supporting structure.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail.
Most preferred embodiment of the present invention as shown in Fig. 2～Fig. 9, mainly comprise header board 1, an A type truss 2,The 2nd A type truss 3, the 3rd A type truss 4, the 4th A type truss 5, the 5th A type truss 6, the 6th AType truss 7, the 7th A type truss 8, rear plate 9. Seven groups of mode and header boards that A type truss is threaded connection1, rear plate 3 is combined, and wherein an A type truss 2 and the 7th A type truss 8 are symmetrically distributed in masterThe supporting construction left and right sides, the 2nd A type truss 3 and the 6th A type truss 7 are symmetrically distributed in main supporting structureThe left and right sides, the 3rd A type truss 4 and the 5th A type truss 6 are symmetrically distributed in the main supporting structure left and right sides,The 4th A type truss 5 is distributed in main supporting structure top.
Described header board 1 version mainly comprises refrative mirror installation base 101, secondary mirror installation base 102,Refrative mirror assembly installing space 103, inferior mirror assembly installing space 104, A type jiont treatment boss 105.
A described A type truss 2 is made up of A type joint 10, truss rod 11, I type joint 12. PurlinHack lever and joint by glued joint mode combine, the form of splicing for socket, joint outside, trussBar is interior. A type joint 10 is fixed on header board 1 by screw and pin, I type joint 12 by screw andPin is fixed on rear plate 9. Composition, combination, fixed form and an A type of all the other A type trussTruss 2 is consistent.
Described A type joint 10 versions mainly comprise truss rod sleeve 1001, hole for injecting glue 1002, spiral shellNail installing hole 1003, pin hole 1004. Version and the A type of the A type joint in all the other A type trussJoint 10 is consistent.
Described I type joint 12 versions mainly comprise truss rod sleeve 1201, hole for injecting glue 1202, screwInstalling hole 1203, pin hole 1204. The version of the I type joint in all the other A type truss and I type joint12 is consistent.
Described rear plate 9 versions mainly comprise I type jiont treatment boss 901, focal plane subassembly installing space902, three mirror installing spaces 903, primary mirror installing space 904, focal plane subassembly installation base 905, three mirrors are installedBoss 906, primary mirror installation base 907.
Header board 1 adopts cast titanium alloy (ZTC4) to make, and A type joint adopts titanium alloy (TC4) to make, truss rodEmploying high-modulus, the carbon fibre composite (M55J) that low line is swollen are made, and I type joint adopts (TC4) to make, afterPlate 9 adopts cast titanium alloy (ZTC4) to make.
Obviously, above-described embodiment is only for example is clearly described, and not to embodimentLimit. For those of ordinary skill in the field, can also make on the basis of the above description itThe variation that it is multi-form or variation. Here without also giving exhaustive to all embodiments. And byThe apparent variation that this extends out or variation are still among the protection domain in the invention.
Claims (7)
1. large scale high specific stiffness truss-like, from axle three reflecting optical system main supporting structures, is characterized in that,Comprise:
Header board, an A type truss, the 2nd A type truss, the 3rd A type truss, the 4th A type truss, the 5th AType truss, the 6th A type truss, the 7th A type truss and rear plate;
Mode and header board, rear plate that the described first to the 7th A type truss is threaded connection are respectively combined in oneRise; Wherein, an A type truss and the 7th A type truss are symmetrically distributed in the main supporting structure left and right sides; SecondA type truss and the 6th A type truss are symmetrically distributed in the main supporting structure left and right sides; The 3rd A type truss and the 5th AType truss is symmetrically distributed in the main supporting structure left and right sides; The 4th A type truss is distributed in main supporting structure top;
Described header board comprises: the refrative mirror installation base of refrative mirror installing space, secondary mirror installing space, a side,Secondary mirror installation base, and multiple A type jiont treatment boss of opposite side; Refrative mirror installation base is arranged onRefrative mirror installing space periphery; Secondary mirror installation base is arranged on secondary mirror installing space periphery;
Described rear plate comprises: focal plane subassembly installing space, three mirror installing spaces, primary mirror installing space; One sideI type jiont treatment boss and focal plane subassembly installation base, three mirror installation bases, the primary mirror of an other sideInstallation base;
Primary mirror assembly is fixed on the primary mirror installation base of rear plate, and inferior mirror assembly is fixed on the secondary mirror of header board and installsOn boss, three mirror assemblies are fixed on three mirror installation bases of rear plate, and refrative mirror assembly is fixed on the folding of header boardOn folded mirror installation base, CCD focal plane subassembly is fixed on the focal plane subassembly installation base of rear plate.
2. large scale high specific stiffness truss-like according to claim 1 is from the main support of axle three reflecting optical systemStructure, is characterized in that, the described first to the 7th A type truss comprises respectively: A type joint, truss rod, IType joint;
Described truss rod two ends are combined with A type joint and I type junction respectively by the mode of glueing joint,The form of glueing joint is socket, and outside, truss rod is interior for joint; A type joint is fixed on by screw and pinOn header board, I type joint is fixed on rear plate by screw and pin.
3. large scale high specific stiffness truss-like according to claim 2 is from the main support of axle three reflecting optical systemStructure, is characterized in that, described A type joint comprises: two truss rod sleeves arranged side by side, which is provided with multipleHole for injecting glue; The connecting plate of two truss rod sleeves is provided with screw mounting hole and pin hole.
4. large scale high specific stiffness truss-like according to claim 2 is from the main support of axle three reflecting optical systemStructure, is characterized in that, described I type joint comprises: truss rod sleeve; Which is provided with multiple hole for injecting glue; PurlinHack lever sleeve bottom is provided with multiple screw mounting holes and pin hole.
5. large scale high specific stiffness truss-like according to claim 2 is from the main support of axle three reflecting optical systemStructure, is characterized in that, the material of described truss rod is carbon fibre composite.
6. reflective from axle three according to the large scale high specific stiffness truss-like described in any one in claim 1-5System main supporting structure, is characterized in that, all optical elements and CCD focal plane subassembly all adopt embeddedInstall.
7. reflective from axle three according to the large scale high specific stiffness truss-like described in any one in claim 1-5System main supporting structure, is characterized in that, front plate material is ZTC4; A type joint material is TC4; TrussBar material is M55J; I type joint material is TC4; Rear plate material is ZTC4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511017764.2A CN105607216B (en) | 2015-12-30 | 2015-12-30 | The off-axis three reflecting optical systems main supporting structure of large scale high specific stiffness truss-like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511017764.2A CN105607216B (en) | 2015-12-30 | 2015-12-30 | The off-axis three reflecting optical systems main supporting structure of large scale high specific stiffness truss-like |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105607216A true CN105607216A (en) | 2016-05-25 |
| CN105607216B CN105607216B (en) | 2018-09-14 |
Family
ID=55987281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511017764.2A Active CN105607216B (en) | 2015-12-30 | 2015-12-30 | The off-axis three reflecting optical systems main supporting structure of large scale high specific stiffness truss-like |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105607216B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106647117A (en) * | 2017-01-23 | 2017-05-10 | 长光卫星技术有限公司 | Truss type main support structure of long-focus wide-view-field large off-axis three-lens-reflex space camera |
| CN107804485A (en) * | 2017-09-27 | 2018-03-16 | 北京空间飞行器总体设计部 | Support between a kind of full carbon fibre composite device |
| CN109557633A (en) * | 2018-12-12 | 2019-04-02 | 中国科学院西安光学精密机械研究所 | Carbon fiber support truss connecting joint of space optical remote sensor and support truss |
| CN109737122A (en) * | 2018-12-29 | 2019-05-10 | 中国科学院长春光学精密机械与物理研究所 | The reinforcement means of carbon fiber bar and joint structure |
| CN109752903A (en) * | 2018-12-29 | 2019-05-14 | 中国科学院长春光学精密机械与物理研究所 | Truss structure and its assemble method for remote sensing camera |
| CN110967113A (en) * | 2019-12-23 | 2020-04-07 | 中国科学院长春光学精密机械与物理研究所 | Spectrum appearance bearing structure |
| CN111025612A (en) * | 2019-11-15 | 2020-04-17 | 中国科学院长春光学精密机械与物理研究所 | Low-cost and small-sized space remote sensing camera |
| CN112666693A (en) * | 2021-01-15 | 2021-04-16 | 长光卫星技术有限公司 | Stress-free assembly method for truss type main bearing structure of large off-axis three-phase inverter |
| CN112965324A (en) * | 2021-03-24 | 2021-06-15 | 中国科学院西安光学精密机械研究所 | Carbon fiber truss body assembling and adjusting device and process based on gluing error compensation |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4927252A (en) * | 1989-04-12 | 1990-05-22 | Burr James D | Newtonian telescope assembly with rotary flat mirror |
| US5734516A (en) * | 1995-05-31 | 1998-03-31 | Societe Nationale Industrielle Et Aerospatiale | Device for accurately positioning the vertex of the secondary mirror off-centered with respect to that of the primary mirror of a telescope, and telescope equipped with such a device |
| CN103795907A (en) * | 2014-01-23 | 2014-05-14 | 中国科学院长春光学精密机械与物理研究所 | Main frame assembling device and assembling method for space optical camera |
| CN104317044A (en) * | 2014-10-27 | 2015-01-28 | 中国科学院长春光学精密机械与物理研究所 | Unfolded petal type space telescope primary mirror |
| CN104536113A (en) * | 2014-12-30 | 2015-04-22 | 中国科学院长春光学精密机械与物理研究所 | High-specific stiffness supporting structure of space optical remote sensor |
-
2015
- 2015-12-30 CN CN201511017764.2A patent/CN105607216B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4927252A (en) * | 1989-04-12 | 1990-05-22 | Burr James D | Newtonian telescope assembly with rotary flat mirror |
| US5734516A (en) * | 1995-05-31 | 1998-03-31 | Societe Nationale Industrielle Et Aerospatiale | Device for accurately positioning the vertex of the secondary mirror off-centered with respect to that of the primary mirror of a telescope, and telescope equipped with such a device |
| CN103795907A (en) * | 2014-01-23 | 2014-05-14 | 中国科学院长春光学精密机械与物理研究所 | Main frame assembling device and assembling method for space optical camera |
| CN104317044A (en) * | 2014-10-27 | 2015-01-28 | 中国科学院长春光学精密机械与物理研究所 | Unfolded petal type space telescope primary mirror |
| CN104536113A (en) * | 2014-12-30 | 2015-04-22 | 中国科学院长春光学精密机械与物理研究所 | High-specific stiffness supporting structure of space optical remote sensor |
Non-Patent Citations (3)
| Title |
|---|
| 张雷 等: "同轴空间相机碳纤维复合材料桁架结构的研制", 《光学 精密工程》 * |
| 张雷 等: "大型离轴三反相机桁架式主支撑结构的设计与优化", 《大型离轴三反相机桁架式主支撑结构的设计及优化》 * |
| 田富湘 等: "空间相机桁架杆接头结构研究", 《光机电信息》 * |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106647117B (en) * | 2017-01-23 | 2018-12-25 | 长光卫星技术有限公司 | The large-scale off-axis three anti-space camera truss-like main supporting structure of long-focus wide visual field |
| CN106647117A (en) * | 2017-01-23 | 2017-05-10 | 长光卫星技术有限公司 | Truss type main support structure of long-focus wide-view-field large off-axis three-lens-reflex space camera |
| CN107804485A (en) * | 2017-09-27 | 2018-03-16 | 北京空间飞行器总体设计部 | Support between a kind of full carbon fibre composite device |
| CN107804485B (en) * | 2017-09-27 | 2020-04-07 | 北京空间飞行器总体设计部 | Support between all-carbon fiber composite material device |
| CN109557633A (en) * | 2018-12-12 | 2019-04-02 | 中国科学院西安光学精密机械研究所 | Carbon fiber support truss connecting joint of space optical remote sensor and support truss |
| CN109557633B (en) * | 2018-12-12 | 2024-05-31 | 中国科学院西安光学精密机械研究所 | Carbon fiber support truss connecting joint and support truss of space optical remote sensor |
| CN109752903B (en) * | 2018-12-29 | 2020-10-27 | 中国科学院长春光学精密机械与物理研究所 | Truss structure for remote sensing camera and assembling method thereof |
| CN109737122A (en) * | 2018-12-29 | 2019-05-10 | 中国科学院长春光学精密机械与物理研究所 | The reinforcement means of carbon fiber bar and joint structure |
| CN109752903A (en) * | 2018-12-29 | 2019-05-14 | 中国科学院长春光学精密机械与物理研究所 | Truss structure and its assemble method for remote sensing camera |
| CN111025612A (en) * | 2019-11-15 | 2020-04-17 | 中国科学院长春光学精密机械与物理研究所 | Low-cost and small-sized space remote sensing camera |
| CN111025612B (en) * | 2019-11-15 | 2021-05-14 | 中国科学院长春光学精密机械与物理研究所 | Low-cost and small-sized space remote sensing camera |
| CN110967113B (en) * | 2019-12-23 | 2021-11-02 | 中国科学院长春光学精密机械与物理研究所 | Spectrum appearance bearing structure |
| CN110967113A (en) * | 2019-12-23 | 2020-04-07 | 中国科学院长春光学精密机械与物理研究所 | Spectrum appearance bearing structure |
| CN112666693A (en) * | 2021-01-15 | 2021-04-16 | 长光卫星技术有限公司 | Stress-free assembly method for truss type main bearing structure of large off-axis three-phase inverter |
| CN112965324A (en) * | 2021-03-24 | 2021-06-15 | 中国科学院西安光学精密机械研究所 | Carbon fiber truss body assembling and adjusting device and process based on gluing error compensation |
| CN112965324B (en) * | 2021-03-24 | 2022-02-18 | 中国科学院西安光学精密机械研究所 | Carbon fiber truss body assembling and adjusting device and process based on gluing error compensation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105607216B (en) | 2018-09-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105607216A (en) | Large-size and high specific stiffness truss off-axis three-reflection optical system main support structure | |
| CN101566718A (en) | Flexible supporting structure for the back of reflecting mirror | |
| JP2011505022A5 (en) | ||
| CN108594396A (en) | Quasi-zero expansion space optical remote sensor supporting structure and method | |
| WO2008142808A1 (en) | Imaging lens | |
| CN102520506A (en) | Compact catadioptric long-wave infrared athermal imaging optical system | |
| CN103513400B (en) | A kind of wide-angle high-resolution pick-up lens | |
| CN102540436A (en) | Optical-compensation athermalizing long-wave infrared optical system | |
| CN205545523U (en) | Big target surface low light level whole day ball camera system | |
| CN102590994A (en) | Wide-field coaxial spherical four-reflector optical system | |
| CN203311090U (en) | Large zoom day-night dual-purpose lens | |
| CN103323935A (en) | Large-zoom camera lens capable of being used in the day and at night | |
| CN109884773B (en) | Lens with low distortion and large target surface | |
| CN204129319U (en) | A kind of large logical light high-res zoom lens | |
| CN112649951B (en) | Low-distortion wide-angle zoom lens | |
| CN103399391B (en) | Ten million pixel large target surface day and night micro pick-up lens | |
| CN204832661U (en) | Panorama hawk eye camera | |
| CN204496091U (en) | The economic money micro-lens of high resolution day and night | |
| CN207965314U (en) | Camera lens module | |
| CN203455537U (en) | Ten-million-pixel large-target-surface night and day miniature camera lens | |
| CN109557633B (en) | Carbon fiber support truss connecting joint and support truss of space optical remote sensor | |
| CN110389431A (en) | A kind of object lens of large relative aperture 4K all-in-one machine Zoom optic lens | |
| CN109164568B (en) | Carbon fiber composite telescope | |
| CN204989603U (en) | 4G2P wide -angle lens | |
| CN1858644A (en) | Optical module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |