OSA's Digital Library

Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 49, Iss. 4 — Apr. 1, 1959
  • pp: 398–399

Selection of Glasses for Three-Color Achromats

ROBERT E. STEPHENS  »View Author Affiliations


JOSA, Vol. 49, Issue 4, pp. 398-399 (1959)
http://dx.doi.org/10.1364/JOSA.49.000398


View Full Text Article

Acrobat PDF (418 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

If two thin lens elements of two different glasses are combined into a thin two-element system, then the chromatic properties of the system may be described by the effective values of V [V = (N - 1)/(NF-NC)], and P [P=(ΔN/NF-NC)]. The effective value, , is a linear function of . On a graph of P versus V, the straight line drawn through the points for two glasses is the locus of all possible effective values of V and P for combinations of these two glasses. By means of such a graph the effective value for a combination of two glasses may be matched to P of a third glass whose V differs from by a useful amount. An achromatic lens system of the three glasses may then be computed, which will have a common focal length for three wavelengths.

Citation
ROBERT E. STEPHENS, "Selection of Glasses for Three-Color Achromats," J. Opt. Soc. Am. 49, 398-399 (1959)
http://www.opticsinfobase.org/josa/abstract.cfm?URI=josa-49-4-398


Sort:  Author  |  Journal  |  Reset

References

  1. N. v. d. W. Lessing, J. Opt. Soc. Am. 47, 955 (1957).
  2. N. v. d. W. Lessing, J. Opt. Soc. Am. 48, 269 (1958).
  3. A. E. Conrady, Applied Optics and Optical Design (Oxford University Press, New York, 1929), pp. 162, 163.
  4. These definitions are in terms of spectrum lines customarily used in the computation of achromats for visual use. They may of course be generalized for any judiciously chosen set of four wavelengths.
  5. The term "three-color achromat" means a lens system that has a common paraxial focal point for three wavelengths. The word apochromat implies further corrections, namely, satisfaction of the sine condition and correction of spherical aberration at two wavelengths, with which we are not concerned in this paper.

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited