Athermalized embedding of actuators in cryogenic mirrors

Craig Hom; Gopal Vasudevan; Mark T. Sullivan; B. Martin Levine

doi:10.1117/12.826650

17 September 2009 Athermalized embedding of actuators in cryogenic mirrors

Craig Hom, Gopal Vasudevan, Mark T. Sullivan, B. Martin Levine

Proceedings Volume 7439, Astronomical and Space Optical Systems; 743911 (2009) https://doi.org/10.1117/12.826650
Event: SPIE Optical Engineering + Applications, 2009, San Diego, California, United States

Abstract

Embedding solid-state ceramic actuators in a bending style deformable mirror presents unique athermalization challenges when operated at cryogenic temperatures. Approaches to athermally embed actuators in a substrate are presented in this study. Each approach is rated according to established design criteria: unmatched displacement, range, compliance ratio, bondline stress, design, and manufacturability. We show the results of our design that allows a large thermal range of operation for the actuators.

Citation Download Citation

Craig Hom, Gopal Vasudevan, Mark T. Sullivan, and B. Martin Levine "Athermalized embedding of actuators in cryogenic mirrors", Proc. SPIE 7439, Astronomical and Space Optical Systems, 743911 (17 September 2009); https://doi.org/10.1117/12.826650

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