Maruyama Y, Iwata K, Nagata R
Appl Opt. 1977 Sep 1;16(9):2500-3. doi: 10.1364/AO.16.002500.
A successful verification of a method for numerical reconstruction of axially symmetric refractive index distribution is reported. Directions of rays emerging from a test object are used as input data for reconstruction. They are obtained by numerically calculating the spatial frequency of the fringes in an interferogram. It is also shown that the same data can be obtained directly by counting moiré fringes arising from two slightly displaced interferograms. An acrylic resin immersed in liquid is used as a test object. The reconstruction is carried out with errors of a few percent.
报道了一种用于轴对称折射率分布数值重建方法的成功验证。从测试物体出射的光线方向被用作重建的输入数据。这些方向是通过数值计算干涉图中条纹的空间频率获得的。还表明，相同的数据可以通过对由两个稍有位移的干涉图产生的莫尔条纹进行计数直接获得。将浸没在液体中的丙烯酸树脂用作测试物体。重建的误差在百分之几以内。
