A tiny electromechanical switch under the bottom mirror can also lift it up, adjusting the spacing and preventing it from reflecting any light at all.
底层镜子下的一个微型机电开关也能抬高镜子，从而调节间距并防止镜子反射任何光。
2
The influence of the bandwidth (time delaying) and the deformable mirror interactuator spacing of the adaptive optics system on the phase compensation efficiency are discussed in detail.