Reflecting Correctors For Large Spherical Primaries

Stephen A. Shectman

doi:10.1117/12.937964

3 November 1983 Reflecting Correctors For Large Spherical Primaries

Stephen A. Shectman

Proceedings Volume 0444, Advanced Technology Optical Telescopes II; (1983) https://doi.org/10.1117/12.937964
Event: 1983 Astronomy Conferences, 1983, London, United Kingdom

Abstract

Two aspheric reflecting elements can correct exactly the spherical aberration and coma of a spherical primary mirror. The remaining off-axis aberrations depend mainly on the sizes of the secondary and tertiary mirrors. Two solutions are presented in which the secondary mirror is 1 meter in diameter. The first is for a 5-meter f/0.8 primary suitable for use as an optical Arecibo (fixed primary) telescope. The second is for a fully steerable telescope with a 12-meter f/1.33 primary. In both cases, 1 arcsecond images are formed at the edge of a field 4 arcminutes in diameter. The collimation tolerances for the corrector assemblies are stringent in comparison to most conventional telescopes, but modest in comparison to the precision required to maintain a segmented primary mirror.

Citation Download Citation

Stephen A. Shectman "Reflecting Correctors For Large Spherical Primaries", Proc. SPIE 0444, Advanced Technology Optical Telescopes II, (3 November 1983); https://doi.org/10.1117/12.937964

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
6 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Mirrors

Monochromatic aberrations

Spherical lenses

Telescopes

Collimation

Aspheric lenses

Assembly tolerances

Show All Keywords

Keywords/Phrases

Search In:

Publication Years