Formula For The RMS Blur Circle Radius Of Wolter Telescopes Based On Aberration Theory

David L. Shealy; Timo T. Saha

doi:10.1117/12.955569

11 October 1989 Formula For The RMS Blur Circle Radius Of Wolter Telescopes Based On Aberration Theory

David L. Shealy, Timo T. Saha

Proceedings Volume 1113, Reflective Optics II; (1989) https://doi.org/10.1117/12.955569
Event: SPIE 1989 Technical Symposium on Aerospace Sensing, 1989, Orlando, FL, United States

Abstract

A formula for the RMS blur circle radius of Wolter telescopes has been derived using the transverse ray aberration expressions of Saha. The resulting formula for the RMS blur circle radius over an image plane and a formula for the surface of best focus are based on third, fifth, and seventh order aberration theory and predict results in very good agreement with exact ray tracing. It has also been shown that one of the two terms in the empirical formula of VanSpeybroeck and Chase for the RMS blur circle radius of a Wolter I telescope can be justified in terms of the aberration theory results. Numerical results are given comparing the RMS blur radius and the surface of best focus versus the half field angle computed by skew ray tracing and from the analytical formulas for grazing incidence Wolter I-II telescopes and a normal incidence Cassegrain telescope.

Citation Download Citation

David L. Shealy and Timo T. Saha "Formula For The RMS Blur Circle Radius Of Wolter Telescopes Based On Aberration Theory", Proc. SPIE 1113, Reflective Optics II, (11 October 1989); https://doi.org/10.1117/12.955569

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