A novel compensation method for the measurement of radius of curvature |
| |
| Authors: | Hengyu Yi Xiaoyang Hu Kai Zhang |
| |
| Institution: | a Institute of Applied Electronic, CAEP, P.O. Box 919-1012, Mianyang 621900, China
b School of Electronics and Information Engineering, Sichuan University, Chengdu 610064, China |
| |
| Abstract: | A test method for spherical mirrors with super-long radius of curvature that only one compensator is employed to measure the radii of curvature of both concave and convex mirrors is presented. With this testing system, the surface figure and radius of curvature of spherical mirrors can be measured simultaneously. Using the ABCD matrix method, a precise formula for radius of curvature calculation is deduced. Experimental results show that the relative measurement error of this method is less than 4.2×10−4. |
| |
| Keywords: | Long curvature radius Optical testing Spherical mirror |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
