The scan mirror is an very important part of a spaceremotesensor. This paper discusses the material development and the manufacture method of the big lightened scan mirrors.
In order to make reflectors of the spaceremotesensor keep both high rigidity of structure and fine stability of thermal dimension, a kind of flexible cone-shaped sheath is designed.
SAR have been one of the most important sensors in spaceremote sensing because the SAR can observe all-weather and all day, and the resolution of the image did not influence by the sensor' s height.