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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 51, Iss. 12 — Dec. 1, 1961
  • pp: 1432–1432

A Simple Means of Demonstrating Coma in the Laboratory

W. H. SCIDMORE and P. R. YODER, JR.  »View Author Affiliations

JOSA, Vol. 51, Issue 12, pp. 1432-1432 (1961)

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It is frequently desirable for instructional purposes to provide a simple means of demonstrating the optical aberration, coma, in the laboratory independently of all the other aberrations. In this paper, a lens design consisting of a cemented doublet and a singlet which produces nearly pure coma is described.

W. H. SCIDMORE and P. R. YODER, JR., "A Simple Means of Demonstrating Coma in the Laboratory," J. Opt. Soc. Am. 51, 1432-1432 (1961)

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  1. D. L. Fridge, J. Opt. Soc. Am. 50, 87 (1960).
  2. R. M. Scott, Summary Technical Report of Division 16, NDRC, Vol. 1, Optical Instruments, 1946 p. 253–256.
  3. H. S. Coleman, D. G. Clark, and M. F. Coleman, J. Opt. Soc. Am. 37, 671 (1947).
  4. R. Kingslake, J. Opt. Soc. Am. 36, 251 (1946).
  5. Subsequent to oral presentation of this paper, Dr. R. Kingslake pointed out to the authors that he and A. B. Simmons described a method of projecting star images having coma and astigmatism in J. Opt. Soc. Am. 23 (August, 1933). In their excellent paper, the aberrated images computed by an optical-path-difference method were compared with photographed images of similar aberrational balance obtained with rotated objective lenses and negative cylindrical lenses. In the present work, the use of cylindrical lenses to balance out the astigmatism at a given field angle was not considered desirable since it was thought that this procedure might be confusing to the student. Instead, it was desired that uniform development of coma in the image be obtained with rotation of a given lens, this following closely the -implified explanation of coma found in most optics textbooks.
  6. L. C. Martin, Technical Optics (Pitman Publishing Corporation, New York, 1950), Vol. 1, p. 132.
  7. R. Kingslake, Proc. Phys. Soc. (London) 61, 147 (1948).

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