针对光学系统存在的像差，提出一种基于液晶空间光调制器的波像差校正方法。对于平行光入射情况，采用数字波面移相干涉仪对光学系统的波前进行精确测量，得到畸变波前的矩阵数据；对于有限远物距的成像，采用Zemax软件模拟得到波前的矩阵数据，利用Matlab编写像差拟合程序将共轭波前的矩阵数据绘制成相应的8位BMP格式的灰度图。根据液晶空间光调制器的位相调制原理，将共轭灰度图和调制器自身的波前畸变校正图同时加载于硅基液晶面上，成像分辨率达到1348 LW/PH，高于不加载灰度图的337.8 LW/PH。实验结果表明: 通过加载波前数据的共轭灰度图，可有效提高光学系统的成像质量。

In view of the aberration of optical systems,a wave aberration correction method based on liquid crystal spatial light modulator is proposed.As to infinity imaging(parallel light),digital wave-front phase-shifting interferometer is used for accurately measuring the wave-front of an optical system,thus to obtain the wave-front data matrix.As to finite focus distance,Zemax simulation is used to obtain the wave-front data matrix.With Matlab,the aberration fitting program is compiled and the conjugate wave-front data matrix is changed to a corresponding 8-bit conjugate gray-scale image in BMP format.According to the phase modulation principle of liquid crystal spatial light modulator,the conjugate gray-scale image and wave-front distortion correcting image of the modulator are loaded on the silicon based LCD panel.The imaging resolution reaches 1348 LW/PH,is higher than that of 337.8 LW/PH without loading the gray-scale.The test shows that,the imaging quality of photographic systems can be notably enhanced by loading conjugate gray-scale images of wave-front data.