Geometric method to measure astigmatism aberration at astronomical telescopes
Applied Optics, Vol. 46, Issue 17, pp. 3439-3443 (2007)
http://dx.doi.org/10.1364/AO.46.003439
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Abstract
A simple geometrical method to measure the aberration of
astigmatism present in the wavefront that emerges from a telescope is presented. The
method is based on the analysis of the external contour of the image of
a slightly defocused star. An expression elliptical edge is obtained, which
links the rms value of
© 2007 Optical Society of America
OCIS Codes
(080.1010) Geometric optics : Aberrations (global)
(110.6770) Imaging systems : Telescopes
(120.1680) Instrumentation, measurement, and metrology : Collimation
ToC Category:
Geometrical optics
History
Original Manuscript: November 10, 2006
Revised Manuscript: January 8, 2007
Manuscript Accepted: January 12, 2007
Published: May 18, 2007
Citation
Esteban Luna, Luis Salas, Leonel Gutiérrez, and J. Manuel Nuñez, "Geometric method to measure astigmatism aberration at astronomical telescopes," Appl. Opt. 46, 3439-3443 (2007)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-46-17-3439
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