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Space stretchable truss type binary optical camera and its working method on orbit

A binary optics, working method technology, applied in optics, optical components, installation and other directions, can solve the problems of difficult to repeat folding, large mass, complex structure, etc., to achieve the effect of easy transportation, light weight and small size

Active Publication Date: 2017-01-18
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the structure of the existing space-expandable frame-type support arm is complicated, the mass is large, and it is difficult to repeatedly fold and unfold, and to provide a space-extensible truss-type binary optical camera and its on-orbit working method

Method used

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  • Space stretchable truss type binary optical camera and its working method on orbit
  • Space stretchable truss type binary optical camera and its working method on orbit
  • Space stretchable truss type binary optical camera and its working method on orbit

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specific Embodiment approach 1

[0031] Specific implementation mode one: the following combination figure 1 , Figure 5 and Figure 6 This embodiment is described. The space-scalable truss-type binary optical camera described in this embodiment includes a block-type expandable optical primary mirror 1, a spherical hinge 2 and a support arm 3;

[0032] The segmented expandable optical main mirror 1 includes 2N segmented sub-mirrors, wherein: N is a positive integer, and N≥3; each segmented sub-mirror includes a sub-block support frame 9, a trimmer 10, and a lens support plate 11 And the lens 14, the lens 14 is installed on the lens support plate 11, the lens support plate 11 is embedded into the sub-block support frame 9 through the trimmer 10; a spring hinge driver 12 and a lock are installed between two adjacent sub-block sub-mirrors 13;

[0033] The support arm 3 includes a plurality of structural foldable units 4, pull cables 5, speed control cables 6, base 7 and drive controller 8; the structural fold...

specific Embodiment approach 2

[0038] Specific implementation mode two: the following combination Figure 5 This embodiment will be described. This embodiment will further describe the first embodiment. The two triangular frames 15 are also equipped with six stay cables 19 .

[0039] In this embodiment, the six stay cables 19 are used to improve the rigidity and stability of the frame-type foldable unit 4 .

specific Embodiment approach 3

[0040] Specific implementation mode three: the following combination Figure 1-Figure 4 Describe this embodiment, the on-orbit working method based on the space-scalable truss-type binary optical camera described in this embodiment, its on-orbit working method includes four working modes, namely: launching and retracting mode, support arm unfolding mode, in-orbit On-orbit running mode and on-orbit folding mode;

[0041] Launching folded mode: In the launching state, the support arm 3 and the segmented expandable optical main mirror 1 are both in the folded mode, see image 3 shown;

[0042] Support arm deployment mode: After entering the orbit, the drive controller 8 drives the motor to rotate forward, the cable 5 and the speed control cable 6 are released, and the support arm 3 is expanded under the drive of the spring hinge 17. After the expansion is in place, it is locked and stiffened, and the folded state The block-type expandable optical primary mirror 1 is sent to the...

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Abstract

The invention provides a telescopic truss type binary optical space camera and an on-orbit work method thereof and belongs to the field of spaceflight space repeatable unfolding. The telescopic truss type binary optical space camera aims to solve the problems that an existing space foldable and spreadable framework type supporting arm is complicated in structure, heavy and difficult to repeatedly fold and unfold. A partitioned type spreadable optical main lens of the telescopic truss type binary optical space camera is installed on a supporting arm through three ball hinges. The supporting arm comprises multiple framework type foldable units. The on-orbit work method comprises the steps that during launching, the supporting arm and the partitioned type spreadable optical main lens are in a folded mode, and the optical camera is in a launch closed mode; after injection, the supporting arm is switched to a unfolding mode and is unfolded; after the supporting arm is unfolded appropriately, the space camera is switched to an on-orbit operation mode, and the partitioned type spreadable optical main lens is unfolded; when the space camera is switched to an on-orbit closed mode, the supporting arm is folded, and the partitioned type spreadable optical main lens is unfolded. The telescopic truss type binary optical space camera is a large-caliber space camera.

Description

technical field [0001] The invention belongs to the field of space repeatable deployment in aerospace. Background technique [0002] With the rapid development of space science and technology, the development of large-aperture space cameras in space detection and other fields is becoming more and more important. For a space camera with a high observation index, the size of its primary mirror must be very large. Of course, the resulting manufacturing and launch difficulties will also be great. For the optical system of the next-generation space telescope with a primary mirror size of the meter scale, the volumetric mass of a traditional integrated primary mirror is astonishing. Such size and quality require very high requirements both in terms of launch cost and launch difficulty. Therefore, launching a telescope with a diameter of several meters or more requires a new vehicle, or a cleverly designed telescope system that uses existing vehicles to launch. [0003] The spac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B7/00
CPCG02B7/00
Inventor 郭宏伟刘荣强高明星史创
Owner HARBIN INST OF TECH
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