Abramson N
Appl Opt. 1974 Sep 1;13(9):2019-25. doi: 10.1364/AO.13.002019.
New methods are introduced that utilize interferometric comparison of images of diffusely reflecting objects from different hologram plates that are sandwiched together. To make the plate positions optically and mechanically identical during reconstruction and exposure, they are also exposed in sandwiches. If the two sandwiched hologram plates are separated by a small distance a new method of fringe evaluation can be used. Fringes caused by object tilt between two exposures can be eliminated by an analogous, but much larger, tilt of the sandwich hologram during reconstruction. Even the direction of tilt, forward or backward, is found this way.
引入了新方法，该方法利用对夹在一起的不同全息图板上漫反射物体图像的干涉测量比较。为了在重建和曝光过程中使板的位置在光学和机械上保持相同，它们也以夹层形式曝光。如果两个夹在一起的全息图板相隔一小段距离，则可以使用一种新的条纹评估方法。通过在重建过程中使夹层全息图产生类似但大得多的倾斜，可以消除两次曝光之间由于物体倾斜而产生的条纹。甚至倾斜方向，向前或向后，也能通过这种方式确定。
