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Flexible back supporting device for large-caliber reflector

A large-diameter reflector and flexible support technology, which is applied in installation, optics, instruments, etc., can solve the problems of surface accuracy requirements and large radial volume of optical components, and achieve the effect of no friction, high motion sensitivity, and stable motion

Inactive Publication Date: 2015-01-14
GENERAL ENG RES INST CHINA ACAD OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiencies in the prior art that cannot fully meet the surface accuracy requirements of optical elements and the large radial volume, the present invention provides a back flexible support device for large-diameter mirrors

Method used

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  • Flexible back supporting device for large-caliber reflector
  • Flexible back supporting device for large-caliber reflector
  • Flexible back supporting device for large-caliber reflector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] figure 1 It is the back flexible supporting device for the large-aperture mirror of the present invention, figure 2 Yes figure 1 Middle A view (with support plate 5 and drive system 7 removed), image 3 Yes figure 1 The view from direction B in (removing the adapter plate 3 and flexible hinge branch chain 4), Figure 7 It is a structural schematic diagram of the drive system in the present invention. exist Figure 1 ~ Figure 3 , Figure 7 Among them, the back flexible supporting device for large-diameter reflectors of the present invention includes a large-diameter reflector 1, a mirror back plate 2 for installing the large-diameter reflector 1, a drive system 7, a support plate 5 for installing the drive system 7, The adapter plate 3, the flexible hinge branch chain 4, and the flexible hinge connecting rod 8 are used to connect the screw 9 of the large-diameter reflector 1, the lens back plate 2, and the adapter plate 3, wherein the drive system 7 includes a ser...

Embodiment 2

[0046] The structure of this embodiment is the same as that of the embodiment, the difference is that the flexible hinge branch chain, the sliding flexible hinge support, and the flexible hinge connecting rod are made of beryllium bronze.

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Abstract

The invention provides a flexible back supporting device for a large-caliber reflector. The supporting device comprises the large-caliber reflector, a lens back plate, a supporting plate, a joint plate, a screw, flexible branch hinges, sliding flexible hinge supports, a flexible hinge connecting rod and a driving system. The three flexible branch hinges and the joint plate together form a combined hinge to constrain three degrees of horizontal moving freedom of the large-caliber reflector, the pitching and deflecting movements of the large-caliber reflector are achieved through flexible hinge blocks of the sliding flexible hinge supports and the driving system, when the driving system is tightly locked, the two degrees of rotating freedom of the large-caliber reflector are constrained, and the degree of the plane inner rotating freedom of the large-caliber reflector is constrained through the flexible hinge connecting rod. The flexible hinge structure is adopted as the supporting and positioning mechanism of the large-caliber reflector, nanoscale positioning precision is achieved, and the structural stability and the precision stability are ensured through matched design of the flexibility and the moving precision of the large-caliber reflector. The flexible back supporting device has the advantages of being simple in structure, stable in movement, free of friction or gaps, needless for lubrication and high in moving sensitivity.

Description

technical field [0001] The invention belongs to the field of precision optomechanics, and in particular relates to a back flexible support device for a large-diameter reflector. Background technique [0002] In order to ensure the quality and energy of the reflected light beams in various scientific devices, there are strict requirements on the mirror deformation of the mirror. At the same time, the structure of the large-aperture mirror is heavy, expensive, and requires precise positional accuracy, so its positioning adjustment structure must be precise and reliable, with high stability, and the overall structure must meet tight installation space requirements. [0003] Traditional large-diameter mirrors mostly adopt the support method of circumferential clamping. Rubber gaskets are set between the lens and the metal frame to avoid hard contact and compensate part of the mirror deformation. In this structure, the lens can obtain a rigid edge protection. Its disadvantage is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B7/183G02B7/198
CPCG02B7/183G02B7/198
Inventor 陈晓娟阙兴华朱明智吴文凯傅学农胡杰陈刚汪宝旭徐元利黄湛
Owner GENERAL ENG RES INST CHINA ACAD OF ENG PHYSICS
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