Computer aided alignment for a Cassegrain telescope

Xiaoming Zhang; Hongbin Chen; Jihong Wang; Bo Qi

doi:10.1117/12.970392

15 October 2012 Computer aided alignment for a Cassegrain telescope

Xiaoming Zhang, Hongbin Chen, Jihong Wang, Bo Qi

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.

Citation Download Citation

Xiaoming Zhang, Hongbin Chen, Jihong Wang, and 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); https://doi.org/10.1117/12.970392

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available