Optical lens body temperature equalization structure based on cold shield radiation cover and flexible cold chain

A technology of optical mirrors and radiation shields, applied in optics, optical components, installation, etc., can solve problems affecting detection performance, optical mirror surface deterioration, thermal deformation, etc.

Pending Publication Date: 2021-07-06
SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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  • Application Information

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Problems solved by technology

[0002] In order to reduce the background noise of the detection instrument of the space remote sensing load, it is necessary to cool the optical system and its structure of the instrument. When the size of the optical mirror body is relatively large, the temperature gradient of the mirror body itself will cause thermal deformation, which will cause the deformation of the optical mirror surface. Poor, affecting detection performance

Method used

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  • Optical lens body temperature equalization structure based on cold shield radiation cover and flexible cold chain
  • Optical lens body temperature equalization structure based on cold shield radiation cover and flexible cold chain
  • Optical lens body temperature equalization structure based on cold shield radiation cover and flexible cold chain

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Embodiment Construction

[0022] A specific embodiment of the temperature equalization structure of the optical mirror body based on the cold shield radiation cover and the flexible cold chain involved in the present invention is as follows:

[0023] 1. Connect the heat insulation component to the end of the main mirror back plate, adjust the installation accuracy of the three heat insulation components according to the optical design requirements, and then connect the heat insulation component to the installation base plate.

[0024] 2 Cut out 0.1mm thick graphite sheets according to the actual heat transfer requirements and design dimensions, and make a flexible cold chain according to the actual space layout requirements and the actual installation interface;

[0025] 3 Connect the two ends of the flexible cold chain to the inner wall of the back plate of the optical mirror body and the back of the large-diameter optical mirror body;

[0026] 4. Connect the cold shield radiation cover to the back pl...

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Abstract

The invention discloses an optical lens temperature equalization structure based on a cold shield radiation cover and a flexible cold chain. Through the uniform heat radiation of the low-temperature cold shield radiation cover and the heat conduction effect of the flexible cold chain, the cooling of the large-aperture optical lens body and the homogenization of the temperature field are realized. The method has the advantages of uniform radiation heat transfer heat flux density and high heat conduction and heat transfer efficiency. The structrue is suitable for refrigeration and temperature field homogenization of a space remote sensing load large-aperture mirror body and a large-size component arranged in a ground vacuum container.

Description

technical field [0001] The invention relates to the occasions where the large-diameter mirror body of the space remote sensing load needs to be refrigerated and has strict requirements on temperature uniformity. It is a structure that realizes the cooling of the cooled parts and the isothermalization of the temperature field through the uniform heat radiation of the cold shield radiation cover and the heat conduction of the flexible cold chain. Background technique [0002] In order to reduce the background noise of the detection instrument of the space remote sensing load, it is necessary to cool the optical system and its structure of the instrument. When the size of the optical mirror body is relatively large, the temperature gradient of the mirror body itself will cause thermal deformation, which will cause the deformation of the optical mirror surface. Poor, affecting detection performance. Therefore, it is necessary to adopt an effective method to reduce the thermal d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B7/18G02B7/183G02B7/02
CPCG02B7/028G02B7/1815G02B7/183
Inventor 刘恩光仇善昌李忠曾瑾李南茜吴亦农饶鹏
Owner SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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