Pre-construction results of giant steerable science mirror for TMT

Fei Yang; Hongchao Zhao; Qichang An; Peng Guo; Haibo Jiang; Pengfei Guo; Jing Zhang

doi:10.1117/12.2310057

6 July 2018 Pre-construction results of giant steerable science mirror for TMT

Fei Yang, Hongchao Zhao, Qichang An, Peng Guo, Haibo Jiang, Pengfei Guo, Jing Zhang

Proceedings Volume 10700, Ground-based and Airborne Telescopes VII; 1070037 (2018) https://doi.org/10.1117/12.2310057
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

The Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP) team is developing Giant Steerable Science Mirror (GSSM) for Thirty Meter Telescope (TMT) which has got into the preliminary design phase in 2017. To develop the passive support structure system for the largest elliptic-plane flat mirror and a smoothest tracking mechanism for the gravity-variant condition, CIOMP had developed a 1/4 scale, functionally accurate version of the GSSM prototype as the pre-construction of GSSM. The prototype incorporates the same optical-mechanical system and servo control system as GSSM. The size of the prototype mirror is 898.5mm×634mm×12.5 mm with elliptic-plane figure and is supported by 18 points whiffletree on axial and 12 points whiffletree on lateral. The main objective of the preconstruction includes validate the conceptual design of GSSM and increase more confidence when meet the challenge during the development of GSSM. The assembling, integration and verification of the prototype have been completed based on the test results. CIOMP has got the sufficient test results during the pre-construction phase and got into the preliminary design for GSSM.

Citation Download Citation

Fei Yang, Hongchao Zhao, Qichang An, Peng Guo, Haibo Jiang, Pengfei Guo, and Jing Zhang "Pre-construction results of giant steerable science mirror for TMT", Proc. SPIE 10700, Ground-based and Airborne Telescopes VII, 1070037 (6 July 2018); https://doi.org/10.1117/12.2310057

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