Share Email Print
cover

Proceedings Paper

Measuring large mirrors using SCOTS: the Software Configurable Optical Test System
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Large telescope mirrors are typically measured using interferometry, which can achieve measurement accuracy of a few nanometers. However, applications of interferometry can be limited by small dynamic range, sensitivity to environment, and high cost. We have developed a range of surface measurement solutions using SCOTS, the Software Configurable Optical Test System, which illuminates the surface under test with light modulated from a digital display or moving source. The reflected light is captured and used to determine the surface slope which is integrated to provide the shape. A range of systems is presented that measures nearly all spatial scales and supports all phases of processing for large telescope mirrors.

Paper Details

Date Published: 28 July 2014
PDF: 13 pages
Proc. SPIE 9151, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation, 91510Z (28 July 2014); doi: 10.1117/12.2057726
Show Author Affiliations
J. H. Burge, College of Optical Sciences, The Univ. of Arizona (United States)
P. Su, College of Optical Sciences, The Univ. of Arizona (United States)
G. Butel, College of Optical Sciences, The Univ. of Arizona (United States)
R. Huang, College of Optical Sciences, The Univ. of Arizona (United States)
A. Maldonado, College of Optical Sciences, The Univ. of Arizona (United States)
T. Su, College of Optical Sciences, The Univ. of Arizona (United States)


Published in SPIE Proceedings Vol. 9151:
Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation
Ramón Navarro; Colin R. Cunningham; Allison A. Barto, Editor(s)

© SPIE. Terms of Use
Back to Top