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Composite primary reflector supporting device for large telescope

A primary reflector and composite support technology, applied in telescopes, installations, optics, etc., can solve the problems of affecting the imaging quality and the large influence of the main reflector's surface deformation, so as to improve the imaging quality and reduce the surface change.

Inactive Publication Date: 2012-05-02
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the support force of the supporting mechanism of the existing main reflector has a great influence on the surface deformation of the main reflector, and when the aperture of the main reflector is large, the imaging quality will be affected, the invention provides a large-scale telescope main reflector composite Support device

Method used

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  • Composite primary reflector supporting device for large telescope
  • Composite primary reflector supporting device for large telescope
  • Composite primary reflector supporting device for large telescope

Examples

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Embodiment Construction

[0016] combine image 3 and Figure 4 Describe this embodiment, a composite support device for the main reflector of a large telescope, the device includes a main reflector 1, a support base part, a fixed back support part and a radial and back composite support part. The support base part includes base 6, central positioning shaft 3, center hole bushing 2; the fixed back support part includes back support seat 26, support steel ball 27, back support disc 13; the radial and back composite support parts are divided into radial A floating support mechanism and a back floating support mechanism, the radial floating support mechanism includes a bushing 14, a radial support rod 15, a radial support steel ball 16, a counterweight box 18, a radial counterweight 22, a support frame 24 and a diameter To support fixed shaft 25;

[0017] The support of the large primary mirror 1 described in this embodiment may include three fixed back support parts and several radial and back composit...

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Abstract

The invention discloses a composite primary reflector supporting device for a large telescope, relates to the technical field of photoelectric observation equipment, and solves the problems that supporting force of the conventional primary reflector supporting mechanism greatly influences surface deformation of a primary reflector and influences the imaging quality when the primary reflector has a large caliber. In the device, a radial floating supporting mechanism and a back floating supporting mechanism support the primary reflector through a lever mechanism, a supporting structure of the primary reflector is simplified through a counterweight along axial and radial component force of the primary reflector, the whole weight is reduced, and the counterweight automatically meets the requirement on the supporting force through direction of the supporting force provided by a supporting rod along posture change of the primary reflector. Steel ball transition is adopted between a radial supporting rod and a bushing and between a back supporting rod and the bushing, so that two movable supporting rods are in rolling friction with a fixing piece; therefore, the supporting device has a function of automatically regulating temperature change, and extra stress of the primary reflector given by the temperature change is avoided.

Description

technical field [0001] The invention relates to the technical field of photoelectric observation equipment, in particular to a supporting device for a main reflector of a large telescope. Background technique [0002] With the rapid development of deep space exploration and measurement and control technology, extremely high requirements are placed on the imaging quality and operating distance indicators of photoelectric measurement equipment, so the demand for large-aperture telescopes continues to increase. The main reflector in the telescope is a key component of photoelectric measurement equipment, and its surface shape plays a decisive role in the imaging quality of the optical system. The support of the main reflector often adopts different structures according to its diameter. Most of the ground-based photoelectric measuring equipment with a caliber of 500mm to 700mm can meet the requirements by adopting the traditional three-point positioning multi-point support on t...

Claims

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Application Information

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IPC IPC(8): G02B7/182G02B7/198G02B23/16
Inventor 孙宁卓仁善
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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