Translator Disclaimer
Paper
7 July 2004 Optimizing telescopes for instrumentation
Author Affiliations +
Proceedings Volume 5382, Second Backaskog Workshop on Extremely Large Telescopes; (2004) https://doi.org/10.1117/12.566387
Event: Second Backaskog Workshop on Extremely Large Telescopes, 2003, Backaskog, Sweden
Abstract
R. Ragazzoni discussed how the design and implementation of auxiliary instruments might be improved by setting the optical prescription of the telscope for each instrument separately; that procedure is allowed by active optics. This paper points out that the idea may be important in Extremely Large Telescopes and draws attention to further implications. One stimulus for using this approach is the greatly increased linear scale of the aberration problem in instruments for such telescopes. Another development included here is that the use of more than one deformable mirror in a telescope makes the technique even more powerful; with the current concepts for deformable secondary mirrors and highly segmented primary mirrors, that technology is now available. This paper also points out certain critical issues in the correction of aberrations and in optical design that are directly impacted by flexibility in the telescope's prescription. However, there can be no general theory. In each particular telescope design, the concept of the "Optimizing Telescope" calls for attention to the extent of the problems to be solved in that case and to the dynamic range available in deformable mirrors and wavefront sensors.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Richard G. Bingham "Optimizing telescopes for instrumentation", Proc. SPIE 5382, Second Backaskog Workshop on Extremely Large Telescopes, (7 July 2004); https://doi.org/10.1117/12.566387
PROCEEDINGS
5 PAGES


SHARE
Advertisement
Advertisement
RELATED CONTENT

Optical design of COATLI an all sky robotic optical...
Proceedings of SPIE (August 09 2016)
OWL optical design, active optics, and error budget
Proceedings of SPIE (July 20 2000)
Active optics at UKIRT
Proceedings of SPIE (August 25 1998)
The VST alignment: strategy and results
Proceedings of SPIE (September 17 2012)
The Optics Of The Very Large Telescope
Proceedings of SPIE (April 13 1989)

Back to Top