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本文在分析了全息图记录的物理本质后,指出只有用参考光和参考光的逆共轭光作再现光时,才能准确再现原物体的像。其它情况下再现像的畸变是不可被免的。这是由于再现时的波像差所引起。为了把波像差的影响减少至最小,我们建议使用平行光做参考光,并用逆光路再现母全息图。文章还提供了拍摄反射全息图和模压全息图的二步法拍摄光路。并指出在全息干涉计量和轮廓测量中,也应充分注意到波像差的影响。
After analyzing the physical essence of hologram recording, this paper points out that the image of the original object can be accurately reproduced only when the inversely conjugated light of the reference light and the reference light is used as the reproducing light. In other cases, the distortion of the reproduced image can not be avoided. This is due to wave aberration at the time of reproduction. In order to minimize the effects of wave aberration, we recommend using parallel light as the reference light, and using the backlight to reproduce the mother hologram. The article also provides a two-shot acquisition optical path for reflective holograms and embossed holograms. It is also pointed out that the effect of wave aberration should also be fully noticed in holographic interferometry and profile measurement.