Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Four-mirror flat-field anastigmat aplanat telescopes with simple closed-form solutions

Not Accessible

Your library or personal account may give you access

Abstract

A four-mirror anastigmat aplanat telescope can be constructed using a Gregorian-form Mersenne afocal telescope as a feeder for a concentric spherical Schwarzschild objective. A flat image field can be obtained by adjusting the ratio of the radii of the mirrors. With the tertiary at the image of the aperture stop (the primary) the primary’s conic K1 can be varied, using the tertiary’s conic K3 to cancel the primary’s spherical aberration without affecting the system’s coma or astigmatism. For a spherical primary, the tertiary is an oblate ellipsoid (K3>0). The minimum obscuration ratio is 44.7% (20% by area).

© 2018 Optical Society of America

Full Article  |  PDF Article
More Like This
Anastigmatic catadioptric telescopes

Robert J. Lurie
J. Opt. Soc. Am. 65(3) 261-266 (1975)

Anastigmatic two-mirror telescopes: some new types

David R. Shafer
Appl. Opt. 16(5) 1178-1180 (1977)

Method for deriving the complete solution set for three-mirror anastigmatic telescopes with two spherical mirrors

Andrew Rakich and Norman Rumsey
J. Opt. Soc. Am. A 19(7) 1398-1405 (2002)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (7)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (4)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved