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Applied Optics

Applied Optics


  • Vol. 17, Iss. 7 — Apr. 1, 1978
  • pp: 1072–1074

Four-mirror unobscured anastigmatic telescopes with all-spherical surfaces

David R. Shafer  »View Author Affiliations

Applied Optics, Vol. 17, Issue 7, pp. 1072-1074 (1978)

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A variety of four-mirror telescopes are described, all corrected for spherical aberration, coma, and astigmatism; all unobscured; and all with spherical surfaces. Performance is discussed with an afocal beam expander and a flat-field telescope as typical design examples.

© 1978 Optical Society of America

Original Manuscript: September 8, 1977
Published: April 1, 1978

David R. Shafer, "Four-mirror unobscured anastigmatic telescopes with all-spherical surfaces," Appl. Opt. 17, 1072-1074 (1978)

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  1. C. R. Burch, Proc. Phys. Soc. London 59, 41 (1947). [CrossRef]
  2. S. Rosin, Appl. Opt. 7, 1483 (1968). [CrossRef] [PubMed]
  3. A. Offner, Opt. Eng. 14, 130 (1975). [CrossRef]

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