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Simulation method of Golay structure multiple-mirror-face telescope system

A simulation method and telescope technology, applied in the field of space remote sensing, can solve problems such as the influence of system imaging image quality and the error of the radius of curvature of the optical surface, and achieve the effects of convenient data analysis, simple operation, and convenient operation

Active Publication Date: 2015-01-28
佛山市腾毅光电有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, since the position of each sub-mirror in the multi-mirror telescope system may deviate from its ideal position during the process of manufacturing and installation, the radius of curvature of the optical surface will also produce errors. The position may also deviate from its ideal position, and these errors may have an impact on the image quality of the system imaging
At present, there is no public report on the research on the multi-mirror telescope system with the above effects at home and abroad

Method used

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  • Simulation method of Golay structure multiple-mirror-face telescope system
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  • Simulation method of Golay structure multiple-mirror-face telescope system

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Embodiment 1

[0048] The simulation method of the Golay structure multi-mirror telescope system of the present embodiment is aimed at the simulation of the Golay3 structure multi-mirror telescope system, and the flow process is as follows figure 1 As shown, the specific steps are as follows:

[0049] ①According to the characteristics of the Golay structure, all sub-mirrors are divided into N three sub-mirror groups of Golay3 structure, and the XYZ coordinate system, U i V i W i coordinate system, ξ ij n ij z ij The coordinate system corresponds to the full-aperture reflector, the Golay3 structure three sub-mirror group and the sub-mirror, where 1≤i≤N, j=1, 2, 3. The origins of the three types of coordinate systems coincide, Z axis, W i Axis, ζ ij axis coincident.

[0050] See Figure 4 , the three sub-mirror groups of the Golay3 structure refer to a combination of three sub-mirrors that can form the Golay3 structure. The angle between the vertical lines of the central axis is 120 ...

Embodiment 2

[0062] The simulation method of the Golay structure multi-mirror telescope system of the present embodiment is aimed at the simulation of the Golay6 structure multi-mirror telescope system, and the specific steps are as follows:

[0063] ①Golay6 structure has a total of N=2 Golay3 structure three sub-mirror groups, and the planar structure is as follows Figure 8 As shown, where P represents the center of gravity of the equilateral ΔABE, and the center S of the three sub-mirrors 7, 8, 9 21 , S 22 , S 23 At the midpoint of each side of ΔABE, the center S of the other three sub-mirrors 2, 3, 4 11 , S 12 , S 13 Meet|AS 11 |=|BS 12 |=|ES 13 |, are equal to 1 / 4 of the side length. Mirror S 11 , S 12 , S 13 Form a three-sub-mirror group of Golay3 structure, the solid line circle in the figure is their circumcircle, and its diameter is set to D 1 , which is equal to the aperture D of the primary mirror. Mirror S 21 , S 22 , S 23 Form another three sub-mirror group of ...

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Abstract

The invention relates to a simulation method of a Golay structure multiple-mirror-face telescope system. The simulation method comprises the following steps: (1) all subsidiary mirrors are divided into a plurality of Golay3 structure triple-subsidiary-mirror groups and a coordinate system is set up: (2) on the basis of a reflection-type or back-turning-type full aperture optical system, an 'empty object' stands for the coordinate system, a 'reflection face' stands for a subsidiary mirror, and a Golay structure spherical surface reflection mirror model is set up; (3) an executable program is set up through program design, a document which can be read by a corresponding optical design software is generated, the document is executed and simulation is achieved; and (4) component parameters are changed, the third step is repeated, relevant program codes are modified and the Golay structure multiple-mirror-face telescope system under a condition that errors exist is simulated. The simulation method of the Golay structure multiple-mirror-face telescope system is simple in principle, convenient to operate, rapid and convenient to conduct data analysis, and beneficial to evaluation of imaging quality of the Golay structure multiple-mirror-face telescope system and influence, on the imaging quality, of the errors and has guidance value for system manufacturing.

Description

technical field [0001] The invention belongs to the field of space remote sensing, in particular to a simulation method of a high-resolution optical remote sensing system. Background technique [0002] The higher the resolution required by the space telescope system, the larger its aperture needs to be designed and manufactured. With the continuous development of the space industry, the aperture of the space telescope is designed to be larger and larger. However, the continuous increase of the aperture of the space telescope has sharply increased the weight, volume, manufacturing and detection difficulties of the entire space telescope system, and the manufacturing and launch costs have increased significantly. When the aperture reaches a certain level, the current technology cannot be manufactured. The sparse-aperture imaging system is a new type of solution proposed to solve the manufacturing problems of large-aperture and high-angular-resolution telescopes. This space te...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B27/00
Inventor 吴峰朱锡芳吴泉英钱霖
Owner 佛山市腾毅光电有限公司