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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 5, Iss. 5 — May. 1, 1966
  • pp: 713–715

Making Corrector Plates by Schmidt’s Vacuum Method

Edgar Everhart  »View Author Affiliations


Applied Optics, Vol. 5, Issue 5, pp. 713-715 (1966)
http://dx.doi.org/10.1364/AO.5.000713


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Abstract

The theory and procedure are given for figuring corrector plates for Schmidt cameras and related systems following Bernhard Schmidt’s classic method. The figure is achieved while the plate is deformed with a partial vacuum on one side. The method easily yields zone-free plates. A modification is described here wherein the correct profile is obtained without precise knowledge of the Young’s modulus or Poisson ratio of the particular glass disk in hand. The method is recommended for systems of f/2.5 or slower as there is danger of the plate breaking for faster systems.

© 1966 Optical Society of America

History
Original Manuscript: September 21, 1965
Published: May 1, 1966

Citation
Edgar Everhart, "Making Corrector Plates by Schmidt’s Vacuum Method," Appl. Opt. 5, 713-715 (1966)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-5-5-713


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References

  1. W. Baade, in Amateur Telescope Making—Book Three, A. G. Ingalls, Ed. (Scientific American, Inc., N. Y., 1953), p. 369.
  2. J. W. Geckeler, Handbuch der Physik (Julius Springer-Verlag, Berlin, 1928), Vol. 6, p. 214, Eq. (5).
  3. E. H. Linfoot, Recent Advances in Optics (Oxford University Press, London, 1955), Chaps. III and IV.
  4. F. B. Wright, Publ. Astron. Soc. Pacific 47, 300 (1935). [CrossRef]
  5. E. W. Washburn, Ed. International Critical Tables (McGraw-Hill Book Company, Inc., New York, 1927), Vol. 2, p. 93and International Critical Tables Vol. 4, p. 21.

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