Infrared and Laser Engineering, Volume. 48, Issue 8, 813003(2019)
Research on Hartmann principle based on sub-aperture slope scanning detection and error
A method of detecting reconstructed wavefront was introduced based on Hartmann principle sub-aperture slope scanning to solve image quality evaluation for large aperture optical system at different elevation angles. The method does not need the same size caliber standard mirror. The information of wavefront can be obtained by scanning. The optical software and mathematical analysis software were used to carry out computer simulation through DDE link. The simulation optical system used Cassegrain system with primary mirror 720 mm and secondary mirror 100 mm to verify the feasibility of this method. Random error inducing and multiple scanning averaging were used to study the accuracy of reconstructed wavefront. The error included spot centroid error, sub-aperture positioning error and sub-aperture tilt error. The comparison between the simulation results and the results of optical software was given, and the physical models of errors and reconstructed wavefront accuracy during error injection were obtained.
Get Citation
Copy Citation Text
Zhao Xianyu, Xue Donglin, Cheng Qiang. Research on Hartmann principle based on sub-aperture slope scanning detection and error[J]. Infrared and Laser Engineering, 2019, 48(8): 813003
Category: 光学设计
Received: Mar. 11, 2019
Accepted: Apr. 21, 2019
Published Online: Sep. 3, 2019
The Author Email: Xianyu Zhao (1246849081@qq.com)