15 October 2012 Computer aided alignment for a Cassegrain telescope
Author Affiliations +
Proceedings Volume 8417, 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment; 841728 (2012) https://doi.org/10.1117/12.970392
Event: 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT 2012), 2012, Xiamen, China
Abstract
In order to further improve the property of an optical system, the precision alignment is required. Computer-aided alignment (CAA) has been studied to complete the challenge. In this paper, we report an application of computer-aided alignment in a Cassegrain telescope based on wavefront errors and have analyzed the character deeply. The principle of CAA is establishing the mapping relation between the misalignments and the wavefront errors. Here, a Cassegrain telescope is built up in ZEMAX. And, the inverse sensitivity analysis of the optical system is done to select the corresponding fringe Zernike polynomial coefficients. MATLAB and ZEMAX are connected through Dynamic Data Extension to make up the simulation platform. Then, the misalignments are calculated by CAA in different cases. Especially, the closed loop simulations are done in two cases, PM with surface errors and PM without surface errors. The simulations demonstrate that the calculation precision of CAA is high in a large range of the misalignments, and it is still available to align the optical system rapidly and precisely while PM has surface errors.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Xiaoming Zhang, Xiaoming Zhang, Hongbin Chen, Hongbin Chen, Jihong Wang, Jihong Wang, Bo Qi, Bo Qi, } "Computer aided alignment for a Cassegrain telescope", Proc. SPIE 8417, 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 841728 (15 October 2012); doi: 10.1117/12.970392; https://doi.org/10.1117/12.970392
PROCEEDINGS
6 PAGES


SHARE
RELATED CONTENT

High fidelity optical modeling for the TMT
Proceedings of SPIE (November 10 2011)
Active optics in Large Synoptic Survey Telescope
Proceedings of SPIE (September 16 2012)
Alignment algorithms for the Thirty Meter Telescope
Proceedings of SPIE (September 16 2012)

Back to Top