Study of bonding positions of isostatic mounts on a lightweight primary mirror

C. Y. Chan; Y. C. Chen; S. T. Chang; T. M. Huang; M. Y. Hsu

doi:10.1117/12.929430

23 October 2012 Study of bonding positions of isostatic mounts on a lightweight primary mirror

C. Y. Chan, Y. C. Chen, S. T. Chang, T. M. Huang, M. Y. Hsu

Proceedings Volume 8516, Remote Sensing System Engineering IV; 85160M (2012) https://doi.org/10.1117/12.929430
Event: SPIE Optical Engineering + Applications, 2012, San Diego, California, United States

Abstract

The bonding positions of three isostatic mounts on the primary mirror of a Cassegrain telescope under self-weight loading have both been studied in the paper. Finite element method and Zernike polynomial fitting are complementarily applied to the ZERODUR® primary mirror with a pre-designed lightweight configuration on the back. Eight bonding positions of isostatic mounts with respect to the center of gravity of the mirror have been chosen to investigate the mirror surface deforms as well as the induced optical aberrations. It is found that astigmatism becomes remarkably higher than other optical aberrations under self-weight loading. The optimum bonding position with the least astigmatism value has also been obtained.

Citation Download Citation

C. Y. Chan, Y. C. Chen, S. T. Chang, T. M. Huang, and M. Y. Hsu "Study of bonding positions of isostatic mounts on a lightweight primary mirror", Proc. SPIE 8516, Remote Sensing System Engineering IV, 85160M (23 October 2012); https://doi.org/10.1117/12.929430

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