Composite primary reflector supporting device for large telescope

A technology of main reflector and composite support, which is applied in telescope, installation, optics and other directions, can solve the problems that the surface deformation of the main reflector has a great influence and affects the imaging quality, and achieve the effect of reducing the change of surface shape and improving the imaging quality
CN102436054BInactive Publication Date: 2013-08-21CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
Publication Date
2013-08-21
Estimated Expiration
Not applicable · inactive patent

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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.
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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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