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提出了杨氏条纹观察屏处放置衍射晕负片消除衍射晕影响的新方法。用该方法对实际双曝光散斑底片进行了处理。结果表明．对解决由于衍射晕强度变化引起的条纹极值漂移和条纹对比度下降问题行之有效。
A new method of eliminating diffraction halo effect by placing a diffraction halo negative film on the Young’s stripe observation screen is proposed. The actual double exposure speckle film was processed using this method. The results show. It is effective to solve the problem of the extremum fringe shift and the fringe contrast reduction caused by the change of diffraction halo intensity.