Photoisomerization reflecting mirror system

Abstract

Disclosed is a photoisomerization reflecting mirror system. Azobenzene derivative composite films having photoisomerization features are adopted as materials of a reflecting mirror, and the surface shape of the film mirror is adjusted through the mode that the irradiation direction, time and power of polarized light to the film mirror are controlled to satisfy imaging precision requirements of an optical system. The photoisomerization reflecting mirror system mainly comprises a film reflecting mirror assembly, a reflecting mirror assembly supporting structure, a scanning device, a polarization and energy control device, a beam expansion device and a laser device; laser emitted by the laser device can be converted to light beams satisfying system control requirements through the beam expansion device and the polarization and energy control device; the scanning device adjusts the directions of the light beams, irradiates appointed regions and adjusts the surface shape of the reflecting mirror through the photoisomerization features of the materials. The photoisomerization reflecting mirror system has the advantages of being light and controllable in surface shape precision, and can be made into a large-diameter reflecting mirror, be applied to space remote sensors, reduce weights of the remote sensors and save the development cost of the remote sensors.

Description

technical field [0001] The invention belongs to the field of aerospace optical remote sensing and relates to an ultra-light mirror system for space remote sensors, which is suitable for the development requirements of future light remote sensors. Background technique [0002] With the rapid development of aerospace technology and the continuous improvement of military and civilian requirements for space remote sensing, it has become an inevitable trend to greatly increase the caliber and focal length of remote sensors. Therefore, the weight and volume of remote sensors have also doubled, leading to the development of remote sensors The substantial increase in cost has also brought great challenges to the launch. Therefore, it is necessary to reduce the size and weight of the remote sensor to save development and launch costs. On the other hand, with the increase of the aperture of the remote sensor, the accuracy of the optical system is difficult to meet the requirements of ...

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of aerospace technology and the continuous improvement of military and civilian requirements for space remote sensing, it has become an inevitable trend to greatly increase the caliber and focal length of remote sensors. Therefore, the weight and volume of remote sensors have also doubled, leading to the development of remote sensors The substantial increase in cost has also brought great challenges to the launch. Therefore, it is necessary to reduce the size and weight of the remote sensor to save development and launch costs.

On the other hand, with the increase of the aperture of the remote sensor, the accuracy of the optical system is difficult to meet the requirements of optical imaging, especially visible light imaging. Therefore, it is necessary to adjust the accuracy of the optical system of the remote sensor on-orbit in real time to meet the system requirements.

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