CN112698507A - Composite shaft mechanism for common-caliber optical system and common-caliber optical system - Google Patents
Composite shaft mechanism for common-caliber optical system and common-caliber optical system Download PDFInfo
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- CN112698507A CN112698507A CN202011620153.8A CN202011620153A CN112698507A CN 112698507 A CN112698507 A CN 112698507A CN 202011620153 A CN202011620153 A CN 202011620153A CN 112698507 A CN112698507 A CN 112698507A
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Abstract
The invention relates to a composite shaft mechanism for a common-caliber optical system, belongs to the field of multiband common-caliber optical-mechanical systems, and is used for solving the defect that the optical-mechanical system in the prior art is not beneficial to miniaturization and light weight of an optical-mechanical system. The composite shaft mechanism for the common-caliber optical system comprises an azimuth shaft system and a pitching shaft system, wherein the pitching shaft system is used as a load of the azimuth shaft system and can rotate around a first shaft under the drive of a motor in the azimuth shaft system; the pitching axis system can also rotate around a second shaft under the driving of a motor in the pitching axis system; wherein the first axis is orthogonal to the second axis; the pitching axis system is also provided with a swing mirror and a reflecting mirror, and the swing mirror and the reflecting mirror form a Kude optical path; the azimuth axis system comprises an azimuth motor, an azimuth bearing and a switching seat, wherein an inner ring of the azimuth motor is connected with an outer ring of the azimuth bearing, and the switching seat is connected with the pitching axis system. The invention also includes a common aperture optical system. The invention is suitable for imaging and laser interference of medium-wave infrared bands.
Description
Technical Field
The invention relates to the field of multiband common-caliber optical-mechanical systems, in particular to a composite axis mechanism for a common-caliber optical system and the common-caliber optical system.
Background
With the continuous progress of scientific technology and the push of the global situation, the multiband and multifunctional airborne photoelectric integrated system has become a hot spot of the world research. In order to meet the requirements of large-field-of-view range searching, target tracking, multi-band system integration and the like in the system, two modes are often adopted. One mode is to adopt a sub-aperture form and integrate each waveband system on a composite shaft, which brings the problems of difficult overall structure layout, overlarge composite shaft load and the like, and is not beneficial to the development trend of miniaturization and light weight of an airborne photoelectric system. The other mode is a common caliber mode, and multiband integration is carried out by utilizing a beam combination mode, so that the problems of layout and use of the whole system can be solved; however, under the condition of meeting performance indexes, how to reduce the load of the composite shaft and reduce the size of the system is always a difficulty for developing an airborne photoelectric integrated system; and how to realize the imaging of the medium wave infrared band and the laser interference function simultaneously is also a difficulty of system development under the condition of ensuring that the acting distance of the optical system is not reduced.
Disclosure of Invention
The invention aims to solve the defect that the optical-mechanical system in the prior art is not beneficial to miniaturization and light weight of the optical-mechanical system.
According to a first aspect of the present invention, a composite axis mechanism for a common-aperture optical system is provided, including an azimuth axis system and a pitch axis system, where the pitch axis system is used as a load of the azimuth axis system and can rotate around a first axis under the drive of a motor in the azimuth axis system; the pitching axis system can also rotate around a second shaft under the driving of a motor in the pitching axis system; wherein the first axis is orthogonal to the second axis; windows are arranged in the azimuth axis system and the pitch axis system, a swing mirror and a reflecting mirror are also arranged in the pitch axis system, and the swing mirror and the reflecting mirror form a KudeDe light path; the azimuth axis system comprises an azimuth motor, an azimuth bearing and a switching seat, wherein an inner ring of the azimuth motor is connected with an outer ring of the azimuth bearing, and the switching seat is connected with the pitching axis system.
Preferably, the azimuth axis system comprises an azimuth stator seat, an azimuth torque motor, an azimuth rotor seat, an azimuth crossed roller bearing, an azimuth bearing seat, an azimuth slip ring, a pitching adapter and an azimuth circular grating; the azimuth stator seat is used as a base of the azimuth shafting and is used for mounting an azimuth torque motor; the azimuth rotor seat is used for connecting the azimuth torque motor and the azimuth crossed roller bearing; the azimuth bearing seat is arranged on the azimuth stator seat and used for supporting the azimuth crossed roller bearing; the azimuth slip ring is arranged on the azimuth bearing seat in a hollow mode and is used for realizing rotation of a shaft system and simultaneously realizing passing of light beams; the pitching adapter is arranged on the azimuth rotor base and used for connecting a pitching shaft system to enable the pitching shaft system to become a rotating load of the azimuth shaft system; the azimuth circle grating is arranged on the azimuth rotor seat and used for feeding back position information.
Preferably, the pitching shafting comprises a pitching moment motor, a pitching cross roller bearing, a pitching slip ring, a pitching circular grating and an infrared window; the pitching moment motor is used for providing a pitching driving force; the pitching crossed roller bearings are arranged at two ends of a pitching shaft system; the pitching slip ring is used for enabling the oscillating mirror to realize continuous scanning movement; the pitching circular grating is used for feeding back position information; the infrared window is arranged in the pitching axis system.
Preferably, the infrared window is mounted in the pitch axis system at an inclination of 3 °.
According to a second aspect of the present invention, there is provided a common-aperture optical system comprising a beam expander lens group, a beam combiner imaging lens group, a telescope group, and a compound axis mechanism for the common-aperture optical system according to the first aspect of the present invention; the beam combining mirror comprises an upper right-angle prism, a light splitting film and a lower right-angle prism; when the light beams are emitted, the light beams sequentially pass through the beam expanding lens group, the beam combining lens and the telescope group, then enter the window of the azimuth axis system, and are emitted from the window of the pitch axis system under the bending action of the reflecting mirror and the swing mirror; when receiving the light beam, the light beam enters from the window of the pitching axis system, passes through the window of the azimuth axis system, the telescope group and the beam combining lens and is received by the imaging lens group.
The invention has the technical effects that a compound axis design in a polar coordinate mode is adopted, a telescope group in a common-caliber system is moved upwards, and orthogonal two-dimensional scanning motion is formed by utilizing Kudet optical paths (a catadioptric mirror and a scanning swing mirror), so that the full coverage requirement of a 2 pi hemisphere target space is met; the medium-wave infrared polarization beam splitter prism is used for realizing beam splitting of high-transmittance P light and high-reflectance S light, and the imaging and laser interference functions of a medium-wave infrared band are realized under the condition of ensuring that the acting distance of an optical system is not reduced; the azimuth shafting is constructed by adopting the modes of nesting the crossed roller bearings, the bearings and the torque motor and the like, the compact and miniaturized structural design is realized, the axial and radial sizes are reduced, and the system quality is greatly reduced. The compact multiband common-caliber optical-mechanical system design technology provided by the invention can meet the use requirement of covering 2 pi half-target space, the shafting precision can reach within 10 ″, and the whole structure is compact and reliable; the technical problems of reducing the load of the composite shaft and reducing the size of the system are effectively solved; meanwhile, the technical problem that the imaging and laser interference functions of the medium wave infrared band are simultaneously realized under the condition that the acting distance of the optical system is not reduced is effectively solved.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a block diagram of a compound axis mechanism for a common aperture optical system in accordance with one embodiment of the present invention;
FIG. 2 is a diagram of an azimuth axis configuration according to an embodiment of the present invention;
FIG. 3 is a view of a pitch shafting configuration in accordance with one embodiment of the present invention;
FIG. 4 is a schematic diagram of a common aperture optical system according to an embodiment of the present invention;
fig. 5 is a structural diagram of a beam combiner according to an embodiment of the present invention.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
< first embodiment >
The embodiment provides a composite shaft mechanism for a common-aperture optical system, as shown in fig. 1 to 3, which includes an azimuth shaft system 4 and a pitch shaft system 5, wherein the pitch shaft system 5 is used as a load of the azimuth shaft system 4 and can rotate around a first axis under the driving of a motor in the azimuth shaft system 4; the pitching axis system 5 can also rotate around a second shaft under the driving of a motor in the pitching axis system 5; wherein the first axis is orthogonal to the second axis; windows are arranged in the azimuth axis system 4 and the pitch axis system 5, a swing mirror 19 and a reflecting mirror 20 are also arranged in the pitch axis system 5, and the swing mirror 19 and the reflecting mirror 20 form a kude optical path; the azimuth axis system 4 comprises an azimuth motor, an azimuth bearing and a switching seat, an inner ring of the azimuth motor is connected with an outer ring of the azimuth bearing, and the switching seat is connected with the pitching axis system 5.
An application scenario of the present embodiment can be described with reference to fig. 4. Fig. 4 is a common aperture optical system that, in one embodiment, enables both laser emission and reception. When the laser is emitted, the light beam reaches the beam combining mirror through the medium-wave infrared beam expander set, enters the telescope set through the polarization effect of the beam splitting film of the beam combining mirror, and then enters the composite shaft mechanism of the embodiment. The present embodiment is mainly used for realizing rotation along two dimensions of a first axis (an azimuth axis system in fig. 4) and a second axis (a pitch axis system in fig. 4). The window is used for enabling the emitted light and the received light to pass through the composite shaft mechanism, the reflecting mirror is used for turning the light path, and the oscillating mirror is also provided with a rotating shaft and can complete scanning through rotating around the rotating shaft. Therefore, the composite shaft mechanism can freely rotate within the range of 2 pi through the shaft system, can emit light beams or receive light beams in the appointed direction, and can complete scanning through the oscillating mirror. The reflector and the scanning mirror form orthogonal two-dimensional scanning motion by utilizing the Kude optical path principle. The kude is a total reflection light guide optical path capable of rotating along with a shaft system, and the system can emit light beams to any direction by rotating a warp shaft and a weft shaft.
Compared with the prior art, the method has the remarkable improvement that the inner ring of the azimuth motor is connected with the outer ring of the azimuth bearing, so that the pitching axis system can be driven to move without the integral rotation of the azimuth axis system. The shafting formed by the nesting mode is more beneficial to the compactness and the miniaturization, and simultaneously, the shafting precision can be ensured.
Furthermore, the azimuth axis system 4 mainly comprises an azimuth stator seat 6, an azimuth torque motor 7, an azimuth rotor seat 8, an azimuth crossed roller bearing 9, an azimuth bearing seat 10, an azimuth slip ring 11, a pitch adapter 12, an azimuth circular grating 13 and the like. The azimuth stator seat 6 is a base of the whole shafting and is used for installing an azimuth torque motor 7; the azimuth rotor seat 8 is used for connecting the azimuth torque motor 7 and the azimuth crossed roller bearing 9 to form a rotating part; the azimuth bearing seat 10 is arranged on the azimuth stator seat 6 and is used for supporting the azimuth crossed roller bearing 9; the azimuth slip ring 11 is arranged on the azimuth bearing seat 10 in a hollow mode and is used for realizing 360-degree rotation of a shaft system and simultaneously realizing light beam passing; the pitching adapter 12 is arranged on the azimuth rotor base 8 and used for connecting the high-precision pitching shaft system 5, so that the whole pitching shaft system becomes a rotating load of the azimuth shaft system; the azimuth circle grating 13 is arranged on the azimuth rotor base 8 and used for feeding back position information; and a complete high-precision azimuth axis system is integrally formed. The whole azimuth shafting is constructed in a way that the bearings and the torque motors are nested, so that the size extension caused by a bearing mounting structure is avoided, and a compact structural design is realized; by adopting the crossed roller bearing, the radial size of the azimuth axis turntable can be reduced, the system quality is greatly reduced, and the miniaturized structural design is realized.
The pitching axis system 5 mainly comprises a pitching moment motor 14, a pitching cross roller bearing 15, a pitching slip ring 16, a pitching circular grating 17, an infrared window 18 and the like. The pitching moment motor 14 mainly provides a pitching driving force; the pitching crossed roller bearings 15 are arranged at two ends of the pitching shaft system 5; one end of the pitching sliding ring 16 is connected with the rotating part, and the other end is connected with the fixed part, so that the pitching oscillating mirror can realize 360-degree continuous scanning movement, and the requirements of pitching between-15 degrees and +90 degrees are met; the pitching circular grating 17 is mainly used for feeding back position information to meet the requirement of high rotation precision required by system operation; the infrared window 18 is installed on the pitching axis system in a following mode in an inclined mode, and the optical system sealing function is achieved through the minimum window size. In order to avoid the influence on the infrared imaging system as much as possible on the basis of the small window size, the infrared window 18 is obliquely installed in the pitch axis system along 3 degrees in the present embodiment.
In the embodiment, a scanning swing mirror and a turning reflecting mirror are utilized to form a composite shaft; wherein the scanning swing mirror forms a pitching axis system and can realize pitching motion of-15 degrees to +90 degrees; the scanning oscillating mirror and the turning reflecting mirror form an azimuth axis system, and 360-degree rotary motion can be realized through a slip ring; the whole forms a larger search and target tracking field of view. The telescope group, the beam combining lens group, the near-infrared laser beam expanding lens group, the medium-wave infrared imaging lens group and the like are arranged on the fixed frame and are kept still, so that the load of the composite shaft is greatly reduced. The whole optical system adopts the modularized design idea, realizes the parallel light butt joint among all modules, and is easy to install, adjust and arrange in a structure.
< second embodiment >
The embodiment provides a common-aperture optical system, which comprises a beam expander lens group, a beam combiner imaging lens group, a telescope group and a composite shaft mechanism used for the common-aperture optical system as in the first embodiment; the beam combiner comprises an upper right-angle prism 1, a light splitting film 2 and a lower right-angle prism 3; when the light beams are emitted, the light beams sequentially pass through the beam expanding lens group, the beam combining lens and the telescope group, then enter the window of the azimuth axis system, and are emitted from the window of the pitch axis system under the bending action of the reflecting mirror and the swing mirror; when receiving the light beam, the light beam enters from the window of the pitching axis system, passes through the window of the azimuth axis system, the telescope group and the beam combining lens and is received by the imaging lens group.
The structure of one embodiment of the beam combiner is shown in fig. 5, and the polarization beam splitter prism mainly comprises an upper right-angle prism 1, a multilayer dielectric beam splitting film 2 and a lower right-angle prism 3. The medium wave infrared light beam irradiates the upper right-angle prism 1, reaches the multilayer medium light splitting film 2 through the upper right-angle prism 1 and is polarized, and the P light in the light vector reaches the medium wave infrared band imaging lens group through high transmittance, so that the medium wave infrared band imaging function is realized; s light in the light vector is reflected with high reflectivity, and the medium wave infrared band laser interference function is realized.
Therefore, the embodiment adopts a polar coordinate scanning mode to realize the movement of the azimuth/pitching composite axis, moves the telescope group (the primary mirror and the secondary mirror) in the common-caliber system upwards, and forms the composite axis by utilizing the scanning swing mirror and the turning reflecting mirror; wherein the scanning swing mirror forms a pitching axis system and can realize pitching motion of-15 degrees to +90 degrees; the scanning oscillating mirror and the turning reflecting mirror form an azimuth axis system, and 360-degree rotary motion can be realized through a slip ring; the whole forms a larger search and target tracking field of view. The telescope group, the beam combining lens group, the near-infrared laser beam expanding lens group, the medium-wave infrared imaging lens group and the like are arranged on the fixed frame and are kept still, so that the load of the composite shaft is greatly reduced. The whole optical system adopts the modularized design idea, realizes the parallel light butt joint among all modules, and is easy to install, adjust and arrange in a structure. The axis part of the deflecting reflector adopts a nesting mode, so that the structure is more compact, the weight of the azimuth rotating part is greatly reduced, the radial size of an optical-mechanical system is shortened, and the technical problems of reducing the load of a composite axis and reducing the size of the system are solved. Meanwhile, the technical problem that the imaging and laser interference functions of the medium wave infrared band are realized simultaneously under the condition that the acting distance of the optical system is not reduced is solved.
< example >
The structures of the components of the embodiment are shown in fig. 1 to 5, and the related common-aperture optical system comprises two bands of near infrared (1064nm) and medium-wave infrared (3.7 μm to 4.8 μm) in total, and realizes three functions of infrared band (1064nm) laser interference, medium-wave infrared band (3.7 μm to 4.8 μm) laser interference and medium-wave infrared band (3.7 μm to 4.8 μm) imaging.
Calcium fluoride is selected as a base material of the upper right-angle prism 1 and the lower right-angle prism 3 in the infrared polarizing prism, the multilayer medium light splitting film 2 is formed by processing a special infrared glue layer, the transmittance of more than 95% of P light and the reflectance of more than 95% of S light in a medium-wave infrared band are finally realized, the energy is prevented from being greatly reduced, and the requirement that the operating distance index is not reduced is met.
In the high-precision azimuth shafting 4, main parts such as an azimuth stator seat 6, an azimuth rotor seat 8, an azimuth bearing seat 10, a pitching adapter 12 and the like are made of aviation aluminum 7A09 materials with excellent performance; the azimuth torque motor 7 adopts a rare earth magnetic steel series direct current torque motor, the continuous locked-rotor torques of the direct current torque motors are respectively 123Nm, and a driving source is directly coupled with a load, so that the system precision and the running stability can be improved; the azimuth crossed roller bearing 9 adopts a crossed roller bearing, and is characterized by high precision, capability of bearing various loads (radial load, axial load and moment load), thin wall size, high rigidity and the like; the azimuth slip ring 11 adopts a Senjeep electronic slip ring with a model number of H180298-0410-20S, and has a hollow center configuration, so that the light transmission requirement is met, and the 360-degree rotation of a shaft system can be realized; the azimuth circular grating 13 adopts a Renysha brand circular grating, and the precision is +/-0.82'; by utilizing the structure, the precision of each component is well adjusted, and the precision of the azimuth axis system of 5' can be realized.
In the high-precision pitching shafting 5, the pitching torque motor 14 also adopts a rare earth magnetic steel series direct current torque motor, the continuous locked-rotor torques of the direct current torque motors are respectively 3Nm, and a driving source is directly coupled with a load, so that the system precision and the running stability can be improved; the pitching crossed roller bearing 15 adopts a crossed roller bearing, so that the overall size of the structure is reduced, and the bearing capacity is improved; the pitching slip ring 16 adopts an electronic M155 series slip ring to realize 360-degree rotation of a shaft system; the pitching circular grating 17 adopts a Renysha brand circular grating, and the precision is +/-2.67'; the infrared window 18 adopts multispectral zinc sulfide to meet the requirement of multiband light transmission, and is obliquely arranged at 3 degrees to avoid influencing an infrared imaging system; by utilizing the structure, the precision of each component is adjusted, and the precision of the azimuth axis system of 10' can be realized.
Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (6)
1. A composite shaft mechanism for a common-caliber optical system is characterized by comprising an azimuth shaft system (4) and a pitching shaft system (5), wherein the pitching shaft system (5) is used as a load of the azimuth shaft system (4) and can rotate around a first shaft under the drive of a motor in the azimuth shaft system (4); the pitching shaft system (5) can also rotate around a second shaft under the drive of a motor in the pitching shaft system (5); wherein the first axis is orthogonal to the second axis; windows are arranged in the azimuth axis system (4) and the pitch axis system (5), a swing mirror (19) and a reflecting mirror (20) are also arranged in the pitch axis system (5), and the swing mirror (19) and the reflecting mirror (20) form a Kude optical path; the azimuth axis system (4) comprises an azimuth motor, an azimuth bearing and a switching seat, an inner ring of the azimuth motor is connected with an outer ring of the azimuth bearing, and the switching seat is connected with the pitching axis system (5).
2. The composite shaft mechanism for the common-caliber optical system according to claim 1, wherein the azimuth shaft system (4) comprises an azimuth stator base (6), an azimuth torque motor (7), an azimuth rotor base (8), an azimuth crossed roller bearing (9), an azimuth bearing base (10), an azimuth slip ring (11), a pitching adapter (12) and an azimuth circle grating (13); the azimuth stator seat (6) is used as a base of an azimuth axis system and is used for mounting an azimuth torque motor (7); the azimuth rotor seat (8) is used for connecting the azimuth torque motor (7) and the azimuth crossed roller bearing (9); the azimuth bearing seat (10) is arranged on the azimuth stator seat (6) and is used for supporting the azimuth crossed roller bearing (9); the azimuth slip ring (11) is arranged on the azimuth bearing seat (10) in a hollow mode and is used for realizing rotation of a shaft system and simultaneously realizing passing of a light beam; the pitching adapter (12) is arranged on the azimuth rotor base (8) and is used for connecting a pitching shaft system (5) to enable the pitching shaft system to become a rotating load of the azimuth shaft system; the azimuth circular grating (13) is arranged on the azimuth rotor base (8) and used for feeding back position information.
3. The compound shaft mechanism for a common-caliber optical system according to claim 2, wherein the pitching shaft system (5) comprises a pitching moment motor (14), a pitching cross roller bearing (15), a pitching slip ring (16), a pitching circular grating (17) and an infrared window (18); the pitching moment motor (14) is used for providing a pitching driving force; the pitching crossed roller bearings (15) are arranged at two ends of the pitching shaft system (5); the pitching slip ring (16) is used for enabling the oscillating mirror to realize continuous scanning movement; the pitching circular grating (17) is used for feeding back position information; the infrared window (18) is arranged in the pitching axis system.
4. A compound axis mechanism for a common aperture optical system according to claim 3, wherein the infrared window (18) is mounted in the pitch axis system at an inclination of 3 °.
5. A common-aperture optical system, comprising a beam expander lens group, a beam combiner imaging lens group, a telescope group and a compound axis mechanism for a common-aperture optical system according to any one of claims 1 to 4; the beam combining mirror comprises an upper right-angle prism (1), a light splitting film (2) and a lower right-angle prism (3); when the light beams are emitted, the light beams sequentially pass through the beam expanding lens group, the beam combining lens and the telescope group, then enter the window of the azimuth axis system, and are emitted from the window of the pitch axis system under the bending action of the reflecting mirror and the swing mirror; when receiving the light beam, the light beam enters from the window of the pitching axis system, passes through the window of the azimuth axis system, the telescope group and the beam combining lens and is received by the imaging lens group.
6. A common-aperture optical system according to claim 4, wherein the beam combiner is capable of achieving a transmittance of 95% or more for P-rays and a reflectance of 95% or more for S-rays.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011620153.8A CN112698507A (en) | 2020-12-30 | 2020-12-30 | Composite shaft mechanism for common-caliber optical system and common-caliber optical system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011620153.8A CN112698507A (en) | 2020-12-30 | 2020-12-30 | Composite shaft mechanism for common-caliber optical system and common-caliber optical system |
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| CN112698507A true CN112698507A (en) | 2021-04-23 |
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| CN202011620153.8A Pending CN112698507A (en) | 2020-12-30 | 2020-12-30 | Composite shaft mechanism for common-caliber optical system and common-caliber optical system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113848628A (en) * | 2021-09-07 | 2021-12-28 | 上海航天控制技术研究所 | Turning lens barrel assembly based on rolling and pitching platform and assembling and adjusting method thereof |
-
2020
- 2020-12-30 CN CN202011620153.8A patent/CN112698507A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113848628A (en) * | 2021-09-07 | 2021-12-28 | 上海航天控制技术研究所 | Turning lens barrel assembly based on rolling and pitching platform and assembling and adjusting method thereof |
| CN113848628B (en) * | 2021-09-07 | 2023-11-10 | 上海航天控制技术研究所 | Turning lens cone assembly based on rolling platform and assembling and adjusting method thereof |
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