【作者】 姚焜； 张权； 孙晴；

【Author】 YAO Kun, ZHANG Quan, SUN Qing The Department of Astronomy and Applied Physics of University of Science and Technology of China Hefei, Anhui, 230026

【机构】 安徽合肥中国科学技术大学天文与应用物理系；

【摘要】 利用玻璃平行平板构成简单的横向剪切干涉仪测量透镜的各种波象差求出对应的几何象差系数。当入射角和平板的厚度发生变化时干涉仪的剪切量S发生改变,本文通过计算机模拟研究了在不同剪切量的情况下具有各种几何象差光束的测量问题。计算机模拟结果说明对于剪切量较大时只能测量具有很小的波象差和很大曲率半径的光束,剪切量较小时可以测量具有较大的波象差和较小曲率半径的光束,计算机模拟结果和实验结果一致。并提出利用平行平板构成简单的横向剪切干涉仪测量透镜的几何象差的方法和应用。更多还原

【Abstract】 Using a glass plate with two parallel surfaces for configuration a simple lateral shearinginterferometer for testing wave front aberrations of lenses and related geometric aberrations. Asthe incident angle of light and the thickness of the plate change the lateral displacement s willchange also. We study the problem of the light beam with varied geometric and wave frontaberrations in different lateral displacement. The results of computer simulation prove that as thelateral displacement S is bigger the wave front aberrations cannot be bigger and the radius must bebigger. As the lateral displacement S is smaller the wave front aberrations can be bigger and theradius can be smaller. The results of computer simulation conform with the results ofexperiments. We present the new methods for measuring the geometric aberrations by lateralshearing interferometry and its applications.更多还原