The resolution of optical system can not reach its diffraction limit because of the phase aberrations caused by atmospheric turbulence and other wavefront errors . adaptive optics technology uses deformable mirrors to perform dynamic phase modulation and endow optical system the ability to decrease the influence of dynamic wavefront errors 大气湍流等动态干扰使光波面相位发生畸变，使光学系统的分辨率无法达到其衍射极限，而自适应光学系统使用变形镜对光波面进行动态相位调制，赋予了光学系统能动可变的能力而有效地解决了动态干扰的问题。
