Active Optics Correction Of Thermal Distortion Of A 1.8 Meter Mirror

E. Pearson; L. Stepp; J. Fox

doi:10.1117/12.7976655

1 February 1988 Active Optics Correction Of Thermal Distortion Of A 1.8 Meter Mirror

E. Pearson, L. Stepp, J. Fox

Author Affiliations +

Optical Engineering, Vol. 27, Issue 2, 272115 (February 1988). https://doi.org/10.1117/12.7976655

Abstract

An active optics system has been built and tested on a prototype 1.8 m lightweight borosilicate glass mirror. Tests of the system have been conducted in two different modes: the system has been used to compensate measured optical surface distortions, and it has been used to correct thermal distortion predicted by computer modeling based on measured mirror temperatures. Both modes were consistently able to reduce rms figure errors on the mirror surface. Test results show that distortions corresponding to astigmatism, coma, spherical aberration, trefoil, and quatrefoil can be effectively countered.

Citation Download Citation

E. Pearson, L. Stepp, and J. Fox "Active Optics Correction Of Thermal Distortion Of A 1.8 Meter Mirror," Optical Engineering 27(2), 272115 (1 February 1988). https://doi.org/10.1117/12.7976655

Published: 1 February 1988

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