Abstract

The preferred modern type of large telescope today is the Ritchey-Chretien form. The field size is aberrationally limited by undercorrected astigmatism and field curvature. A pair of equally and oppositely oriented flat transmittng plates can neutralize either or both of these aberrations locally in the field to restore the image. These plates, relatively inexpensive and positionally noncritical, may be used to extend the available image area by an order of magnitude.

© 1972 Optical Society of America

Field Correctors for Large Telescopes

C. G. Wynne
Appl. Opt. 4(9) 1185-1192 (1965)

Aplanatic meniscus lens corrector for Ritchey-Chrétien telescopes

Michelle C. Rocha and Alexander V. Goncharov
Opt. Express 30(4) 6076-6089 (2022)

General Analysis of Aplanatic Cassegrain, Gregorian, and Schwarzschild Telescopes

W. B. Wetherell and M. P. Rimmer
Appl. Opt. 11(12) 2817-2832 (1972)

Anastigmatic Cassegrain Type Telescope

D. H. Schulte
Appl. Opt. 5(2) 309-311 (1966)

A unique astigmatic nodal property in misaligned Ritchey-Chrétien telescopes with misalignment coma removed

Tobias Schmid, Kevin P. Thompson, and Jannick P. Rolland
Opt. Express 18(5) 5282-5288 (2010)