Share Email Print

Proceedings Paper

Study on computer-aided alignment method
Author(s): Jianfeng Liu; Funian Long; Wei Zhang
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

A computer-aided alignment procedure is described, based on an off-axis three-mirror system. The relationship between the tilt and decenter variables is analyzed and the primary aberrations introduced by the variables are calculated. By eliminating the correlated variables, the alignment solutions are determined and damping factor is not needed. The processes of the method are as follows: 1) the correlation among variables is obtained by calculating the condition number of the sensitivity matrix for optical systems. 2) the alignment variables and magnitudes are gotten by eliminating correlated variables. The results simulated by a computer show that it is theoretically feasible to determine the solution by only one iterative. It can not only meet the precision requirement, but also accelerate the convergence of alignment solutions. This method is realized by compensation among variables, so the variables are reduced and the time of alignment is saved.

Paper Details

Date Published: 10 February 2005
PDF: 8 pages
Proc. SPIE 5638, Optical Design and Testing II, (10 February 2005); doi: 10.1117/12.574082
Show Author Affiliations
Jianfeng Liu, Harbin Institute of Technology (China)
Funian Long, Harbin Institute of Technology (China)
Wei Zhang, Harbin Institute of Technology (China)

Published in SPIE Proceedings Vol. 5638:
Optical Design and Testing II
Yongtian Wang; Zhicheng Weng; Shenghua Ye; Jose M. Sasian, Editor(s)

© SPIE. Terms of Use
Back to Top