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Reflecting mirror axis system supporting and clamping device operated at low temperature

A clamping device and mirror technology, applied in installation, optics, instruments, etc., can solve problems such as inability to effectively solve problems, and achieve the effects of improving optical surface accuracy, improving surface accuracy, and reducing thermal stress.

Pending Publication Date: 2019-06-28
SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The excessive temperature load caused by the excessive temperature difference, as well as the limitation on the weight of the load on the star, make simple thermal matching of materials and unloading of the floating end of the shafting unable to effectively solve the problem

Method used

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  • Reflecting mirror axis system supporting and clamping device operated at low temperature
  • Reflecting mirror axis system supporting and clamping device operated at low temperature
  • Reflecting mirror axis system supporting and clamping device operated at low temperature

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Embodiment Construction

[0043] The following is based on Figure 1 to Figure 4 A preferred embodiment of the present invention is given to illustrate the structural features and implementation methods of the present invention, but not to limit the scope of the present invention.

[0044] In this embodiment, the mirror shaft support and clamping device used at low temperature is applied to the pre-pointing mechanism of an optical instrument for surface detection of a planet that lacks resources and has no active temperature control at all. The total angular range of mirror rotation is 110°, and the beam diameter is 100mm. The working temperature is -80°C, the maximum overload acceleration reaches 30 gravitational accelerations during launch and landing of the aircraft, the root mean square acceleration of random vibration is 23g, and the impact reaches 1800g. The device specifically includes the following parts: U-shaped frame 1 , fixed support shaft system 2 , beam 3 , reflector 4 , mirror body inse...

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Abstract

The invention discloses a reflecting mirror axis system supporting and clamping device operated at low temperature. Main supporting of a mirror body and axis systems is performed through a U-shaped frame, and symmetric deformation at low temperature is realized through mounting of a cross beam at the top of the U-shaped frame; rotation of a reflecting mirror is realized through mounting of the axis systems in inner holes in the two sides of the U-shaped frame; the two axis systems are respectively designed to be fixed and moved; insert blocks with double-layer flexible structures are bonded inthe holes in the two sides of the reflecting mirror through an adhesive and are connected with the two axis systems through screws; and pins are arranged between the insert blocks and the mirror body, so that the connection firmness is improved. The device can be applied to clamping and supporting of the reflecting mirror requiring still keeping excellent optical surface type and high performanceat extremely low temperature after going through vibration and impact environment; and the device is applicable to outboard tracking and pointing mechanisms for satellite-carried optical communication and scanning pointing mechanism reflecting mirrors for deep space detection. The device is compact in structure, light in mass, wide in applicable temperature range and good in reflecting mirror surface type maintenance.

Description

Technical field: [0001] The invention relates to the field of deep space optical detection and space-borne optical communication, in particular to a mirror shaft support and clamping device, in particular to a mirror shaft support and clamping device used at low temperature, which is used for The shafting of the pointing and scanning mirrors is made and clamped and fixed. Background technique: [0002] The pointing mirror is the core component of spaceborne optical communication and spaceborne optical remote sensing equipment. By driving the one-dimensional / two-dimensional rotation of the pointing mirror, it is possible to realize the tracking and aiming of the optical terminal at a long distance (for example: artificial satellite-ground, between artificial satellites) to realize optical communication, and to realize the ground scanning imaging of optical remote sensing equipment or phase shift compensation. [0003] Pointing mirrors are usually arranged at the front end o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B7/185G02B7/182G02B7/183
Inventor 闫志欣王波涛舒嵘徐卫明
Owner SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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