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Applied Optics

Applied Optics


  • Vol. 22, Iss. 12 — Jun. 15, 1983
  • pp: 1807–1811

Simple flat-field eyepiece

Thomas L. Clarke  »View Author Affiliations

Applied Optics, Vol. 22, Issue 12, pp. 1807-1811 (1983)

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A simple three-element eyepiece is presented which has a zero Petzval sum and is corrected for both longitudinal and lateral color. Following a third-order analysis, results of ray tracing several examples are presented. Designs using a single glass are useful at f/4 and 40°, and multiglass designs can be used at f/3 and 40°. These latter designs also correct the coma of a paraboloidal mirror objective.

© 1983 Optical Society of America

Original Manuscript: January 17, 1983
Published: June 15, 1983

Thomas L. Clarke, "Simple flat-field eyepiece," Appl. Opt. 22, 1807-1811 (1983)

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  1. H. Selby, “Telescope Eyepieces,” in Amateur Telescope Making, Vol. 3 (Scientific American, New York, 1953), p. 479.
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