An h‑β Composite Optimization Method for the Side Support of the Primary Mirror of Astronomical Optical Telescope

A telescope and optimization method technology, applied in the field of H-β composite optimization method, can solve the problems of poor calculation method accuracy, slow speed, not the global optimal value, etc., and achieve the effect of improving accuracy

Active Publication Date: 2018-02-13
ZIJINSHAN ASTRONOMICAL OBSERVATORY CHINESE ACAD OF SCI
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Problems solved by technology

[0006] The technical problem to be solved by the present invention is that the existing astronomical optical telescope main mirror side support optimization method has only one parameter variable when optimizing, the obtained support point design scheme is not good, and the calculation method is either poor in accuracy or slow in speed and not the global best. figure of merit

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  • An h‑β Composite Optimization Method for the Side Support of the Primary Mirror of Astronomical Optical Telescope
  • An h‑β Composite Optimization Method for the Side Support of the Primary Mirror of Astronomical Optical Telescope
  • An h‑β Composite Optimization Method for the Side Support of the Primary Mirror of Astronomical Optical Telescope

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Embodiment 1

[0080] Taking the side support of the primary mirror of the 2.5-meter wide-field survey telescope (WFST) as an example, the objective function, the setting of design variables and state variables

[0081] Such as figure 1 As shown, the wavelength range of WFST observation is from 320nm to 1000nm, so the root mean square minimum half-optical path error of shaft support design under gravity load cannot exceed 10nm. The primary mirror is crescent-shaped, the upper surface and the lower surface are paraboloids with focal length f=2.13, the thickness of the primary mirror is h=120.00mm, and the inner diameter is φ 1 =1000.00mm, outer diameter φ 2 =2500.00mm.

[0082] Such as figure 2 As shown, the lateral support design of the WFST primary mirror, when the mirror surface is vertical, the outer diameter r of the primary mirror 2 Select about XZ plane and YZ plane symmetry N point (taking N=6 as example) at height H (distance from primary mirror bottom paraboloid vertex) place o...

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Abstract

The invention relates to an optimization method for the side support of the primary mirror of an astronomical optical telescope, in particular to an H-β compound optimization method for the side support of the primary mirror of the astronomical optical telescope. The technical problem to be solved by the present invention is that the existing astronomical optical telescope main mirror side support optimization method has only one parameter variable when optimizing, the obtained support point design scheme is not good, and the calculation method is either poor in accuracy or slow in speed and not the global best. Merit. In order to solve the above-mentioned technical problems, the technical solution adopted in the present invention is: an H-β composite optimization method for the side support of the main mirror of the astronomical optical telescope. The invention describes in detail an H-β composite optimization method for the side support of the main mirror of the astronomical optical telescope, and the H-β composite optimization method is a high-precision optimization method.

Description

technical field [0001] The invention relates to an optimization method for the side support of the primary mirror of an astronomical optical telescope, in particular to an H-β compound optimization method for the side support of the primary mirror of the astronomical optical telescope. Background technique [0002] Astronomical Telescope is an important tool for observing celestial bodies. It is no exaggeration to say that without the birth and development of telescopes, there would be no modern astronomy. With the improvement and improvement of the performance of telescopes in all aspects, astronomy is also undergoing a huge leap, rapidly advancing human understanding of the universe. Since the light-gathering ability of the telescope increases with the increase of the aperture, the stronger the light-gathering ability of the telescope, the fainter and farther celestial bodies can be seen. Therefore, the development of astrophysics requires a telescope with a larger apertur...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B23/16G06F17/50G06T17/00
Inventor 王海仁娄铮程景全郑宪忠左营喜杨戟
Owner ZIJINSHAN ASTRONOMICAL OBSERVATORY CHINESE ACAD OF SCI
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