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Methodology for third-order astigmatism compensation in off-axis spherical reflective systems.

Armando Gomez-Vieyra1, Daniel Malacara-Hernández

  • 1Centro de Investigaciones en Óptica A.C., Loma del Bosque 115, C.P. 37000, León, Guanajuato, Mexico.

Applied Optics
|March 3, 2011
PubMed
Summary

Primary astigmatism in off-axis reflective systems can be eliminated with specific mirror configurations. This study derives and verifies conditions for astigmatism compensation using the marginal ray fan equation for systems with two to four mirrors.

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